Imported Upstream version 5.4.0

25 files changed, 0 insertions, 14976 deletions

diff --git a/src/libhydra/plugins/kernel_netlink/Makefile.am b/src/libhydra/plugins/kernel_netlink/Makefile.am
deleted file mode 100644
index cc8855406..000000000
--- a/src/libhydra/plugins/kernel_netlink/Makefile.am
+++ /dev/null
@@ -1,44 +0,0 @@
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diff --git a/src/libhydra/plugins/kernel_netlink/Makefile.in b/src/libhydra/plugins/kernel_netlink/Makefile.in
deleted file mode 100644
index 962fe1ba1..000000000
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+++ /dev/null
@@ -1,1005 +0,0 @@
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-	  fi; \
-	  echo "$${col}$$dashes$${std}"; \
-	  echo "$${col}$$banner$${std}"; \
-	  test -z "$$skipped" || echo "$${col}$$skipped$${std}"; \
-	  test -z "$$report" || echo "$${col}$$report$${std}"; \
-	  echo "$${col}$$dashes$${std}"; \
-	  test "$$failed" -eq 0; \
-	else :; fi
-
-distdir: $(DISTFILES)
-	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
-	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
-	list='$(DISTFILES)'; \
-	  dist_files=`for file in $$list; do echo $$file; done | \
-	  sed -e "s|^$$srcdirstrip/||;t" \
-	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
-	case $$dist_files in \
-	  */*) $(MKDIR_P) `echo "$$dist_files" | \
-			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
-			   sort -u` ;; \
-	esac; \
-	for file in $$dist_files; do \
-	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
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-	    if test -d "$(distdir)/$$file"; then \
-	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
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-	    fi; \
-	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
-	  else \
-	    test -f "$(distdir)/$$file" \
-	    || cp -p $$d/$$file "$(distdir)/$$file" \
-	    || exit 1; \
-	  fi; \
-	done
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-	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
-	done
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-
-# Tell versions [3.59,3.63) of GNU make to not export all variables.
-# Otherwise a system limit (for SysV at least) may be exceeded.
-.NOEXPORT:
diff --git a/src/libhydra/plugins/kernel_netlink/kernel_netlink_ipsec.c b/src/libhydra/plugins/kernel_netlink/kernel_netlink_ipsec.c
deleted file mode 100644
index 8c506d9f4..000000000
--- a/src/libhydra/plugins/kernel_netlink/kernel_netlink_ipsec.c
+++ /dev/null
@@ -1,2966 +0,0 @@
-/*
- * Copyright (C) 2006-2015 Tobias Brunner
- * Copyright (C) 2005-2009 Martin Willi
- * Copyright (C) 2008 Andreas Steffen
- * Copyright (C) 2006-2007 Fabian Hartmann, Noah Heusser
- * Copyright (C) 2006 Daniel Roethlisberger
- * 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.
- */
-
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <stdint.h>
-#include <linux/ipsec.h>
-#include <linux/netlink.h>
-#include <linux/rtnetlink.h>
-#include <linux/xfrm.h>
-#include <linux/udp.h>
-#include <unistd.h>
-#include <time.h>
-#include <errno.h>
-#include <string.h>
-#include <fcntl.h>
-
-#include "kernel_netlink_ipsec.h"
-#include "kernel_netlink_shared.h"
-
-#include <hydra.h>
-#include <utils/debug.h>
-#include <threading/mutex.h>
-#include <collections/array.h>
-#include <collections/hashtable.h>
-#include <collections/linked_list.h>
-
-/** Required for Linux 2.6.26 kernel and later */
-#ifndef XFRM_STATE_AF_UNSPEC
-#define XFRM_STATE_AF_UNSPEC 32
-#endif
-
-/** From linux/in.h */
-#ifndef IP_XFRM_POLICY
-#define IP_XFRM_POLICY 17
-#endif
-
-/** Missing on uclibc */
-#ifndef IPV6_XFRM_POLICY
-#define IPV6_XFRM_POLICY 34
-#endif /*IPV6_XFRM_POLICY*/
-
-/* from linux/udp.h */
-#ifndef UDP_ENCAP
-#define UDP_ENCAP 100
-#endif
-
-#ifndef UDP_ENCAP_ESPINUDP
-#define UDP_ENCAP_ESPINUDP 2
-#endif
-
-/* this is not defined on some platforms */
-#ifndef SOL_UDP
-#define SOL_UDP IPPROTO_UDP
-#endif
-
-/** Base priority for installed policies */
-#define PRIO_BASE 384
-
-/** Default lifetime of an acquire XFRM state (in seconds) */
-#define DEFAULT_ACQUIRE_LIFETIME 165
-
-/**
- * Map the limit for bytes and packets to XFRM_INF by default
- */
-#define XFRM_LIMIT(x) ((x) == 0 ? XFRM_INF : (x))
-
-/**
- * Create ORable bitfield of XFRM NL groups
- */
-#define XFRMNLGRP(x) (1<<(XFRMNLGRP_##x-1))
-
-/**
- * Returns a pointer to the first rtattr following the nlmsghdr *nlh and the
- * 'usual' netlink data x like 'struct xfrm_usersa_info'
- */
-#define XFRM_RTA(nlh, x) ((struct rtattr*)(NLMSG_DATA(nlh) + \
-										   NLMSG_ALIGN(sizeof(x))))
-/**
- * Returns the total size of attached rta data
- * (after 'usual' netlink data x like 'struct xfrm_usersa_info')
- */
-#define XFRM_PAYLOAD(nlh, x) NLMSG_PAYLOAD(nlh, sizeof(x))
-
-typedef struct kernel_algorithm_t kernel_algorithm_t;
-
-/**
- * Mapping of IKEv2 kernel identifier to linux crypto API names
- */
-struct kernel_algorithm_t {
-	/**
-	 * Identifier specified in IKEv2
-	 */
-	int ikev2;
-
-	/**
-	 * Name of the algorithm in linux crypto API
-	 */
-	char *name;
-};
-
-ENUM(xfrm_msg_names, XFRM_MSG_NEWSA, XFRM_MSG_MAPPING,
-	"XFRM_MSG_NEWSA",
-	"XFRM_MSG_DELSA",
-	"XFRM_MSG_GETSA",
-	"XFRM_MSG_NEWPOLICY",
-	"XFRM_MSG_DELPOLICY",
-	"XFRM_MSG_GETPOLICY",
-	"XFRM_MSG_ALLOCSPI",
-	"XFRM_MSG_ACQUIRE",
-	"XFRM_MSG_EXPIRE",
-	"XFRM_MSG_UPDPOLICY",
-	"XFRM_MSG_UPDSA",
-	"XFRM_MSG_POLEXPIRE",
-	"XFRM_MSG_FLUSHSA",
-	"XFRM_MSG_FLUSHPOLICY",
-	"XFRM_MSG_NEWAE",
-	"XFRM_MSG_GETAE",
-	"XFRM_MSG_REPORT",
-	"XFRM_MSG_MIGRATE",
-	"XFRM_MSG_NEWSADINFO",
-	"XFRM_MSG_GETSADINFO",
-	"XFRM_MSG_NEWSPDINFO",
-	"XFRM_MSG_GETSPDINFO",
-	"XFRM_MSG_MAPPING"
-);
-
-ENUM(xfrm_attr_type_names, XFRMA_UNSPEC, XFRMA_REPLAY_ESN_VAL,
-	"XFRMA_UNSPEC",
-	"XFRMA_ALG_AUTH",
-	"XFRMA_ALG_CRYPT",
-	"XFRMA_ALG_COMP",
-	"XFRMA_ENCAP",
-	"XFRMA_TMPL",
-	"XFRMA_SA",
-	"XFRMA_POLICY",
-	"XFRMA_SEC_CTX",
-	"XFRMA_LTIME_VAL",
-	"XFRMA_REPLAY_VAL",
-	"XFRMA_REPLAY_THRESH",
-	"XFRMA_ETIMER_THRESH",
-	"XFRMA_SRCADDR",
-	"XFRMA_COADDR",
-	"XFRMA_LASTUSED",
-	"XFRMA_POLICY_TYPE",
-	"XFRMA_MIGRATE",
-	"XFRMA_ALG_AEAD",
-	"XFRMA_KMADDRESS",
-	"XFRMA_ALG_AUTH_TRUNC",
-	"XFRMA_MARK",
-	"XFRMA_TFCPAD",
-	"XFRMA_REPLAY_ESN_VAL",
-);
-
-/**
- * Algorithms for encryption
- */
-static kernel_algorithm_t encryption_algs[] = {
-/*	{ENCR_DES_IV64,				"***"				}, */
-	{ENCR_DES,					"des"				},
-	{ENCR_3DES,					"des3_ede"			},
-/*	{ENCR_RC5,					"***"				}, */
-/*	{ENCR_IDEA,					"***"				}, */
-	{ENCR_CAST,					"cast5"				},
-	{ENCR_BLOWFISH,				"blowfish"			},
-/*	{ENCR_3IDEA,				"***"				}, */
-/*	{ENCR_DES_IV32,				"***"				}, */
-	{ENCR_NULL,					"cipher_null"		},
-	{ENCR_AES_CBC,				"aes"				},
-	{ENCR_AES_CTR,				"rfc3686(ctr(aes))"	},
-	{ENCR_AES_CCM_ICV8,			"rfc4309(ccm(aes))"	},
-	{ENCR_AES_CCM_ICV12,		"rfc4309(ccm(aes))"	},
-	{ENCR_AES_CCM_ICV16,		"rfc4309(ccm(aes))"	},
-	{ENCR_AES_GCM_ICV8,			"rfc4106(gcm(aes))"	},
-	{ENCR_AES_GCM_ICV12,		"rfc4106(gcm(aes))"	},
-	{ENCR_AES_GCM_ICV16,		"rfc4106(gcm(aes))"	},
-	{ENCR_NULL_AUTH_AES_GMAC,	"rfc4543(gcm(aes))"	},
-	{ENCR_CAMELLIA_CBC,			"cbc(camellia)"		},
-/*	{ENCR_CAMELLIA_CTR,			"***"				}, */
-/*	{ENCR_CAMELLIA_CCM_ICV8,	"***"				}, */
-/*	{ENCR_CAMELLIA_CCM_ICV12,	"***"				}, */
-/*	{ENCR_CAMELLIA_CCM_ICV16,	"***"				}, */
-	{ENCR_SERPENT_CBC,			"serpent"			},
-	{ENCR_TWOFISH_CBC,			"twofish"			},
-	{ENCR_CHACHA20_POLY1305,	"rfc7539esp(chacha20,poly1305)"},
-};
-
-/**
- * Algorithms for integrity protection
- */
-static kernel_algorithm_t integrity_algs[] = {
-	{AUTH_HMAC_MD5_96,			"md5"				},
-	{AUTH_HMAC_MD5_128,			"hmac(md5)"			},
-	{AUTH_HMAC_SHA1_96,			"sha1"				},
-	{AUTH_HMAC_SHA1_160,		"hmac(sha1)"		},
-	{AUTH_HMAC_SHA2_256_96,		"sha256"			},
-	{AUTH_HMAC_SHA2_256_128,	"hmac(sha256)"		},
-	{AUTH_HMAC_SHA2_384_192,	"hmac(sha384)"		},
-	{AUTH_HMAC_SHA2_512_256,	"hmac(sha512)"		},
-/*	{AUTH_DES_MAC,				"***"				}, */
-/*	{AUTH_KPDK_MD5,				"***"				}, */
-	{AUTH_AES_XCBC_96,			"xcbc(aes)"			},
-};
-
-/**
- * Algorithms for IPComp
- */
-static kernel_algorithm_t compression_algs[] = {
-/*	{IPCOMP_OUI,				"***"				}, */
-	{IPCOMP_DEFLATE,			"deflate"			},
-	{IPCOMP_LZS,				"lzs"				},
-	{IPCOMP_LZJH,				"lzjh"				},
-};
-
-/**
- * Look up a kernel algorithm name and its key size
- */
-static char* lookup_algorithm(transform_type_t type, int ikev2)
-{
-	kernel_algorithm_t *list;
-	int i, count;
-	char *name;
-
-	switch (type)
-	{
-		case ENCRYPTION_ALGORITHM:
-			list = encryption_algs;
-			count = countof(encryption_algs);
-			break;
-		case INTEGRITY_ALGORITHM:
-			list = integrity_algs;
-			count = countof(integrity_algs);
-			break;
-		case COMPRESSION_ALGORITHM:
-			list = compression_algs;
-			count = countof(compression_algs);
-			break;
-		default:
-			return NULL;
-	}
-	for (i = 0; i < count; i++)
-	{
-		if (list[i].ikev2 == ikev2)
-		{
-			return list[i].name;
-		}
-	}
-	if (hydra->kernel_interface->lookup_algorithm(hydra->kernel_interface,
-												  ikev2, type, NULL, &name))
-	{
-		return name;
-	}
-	return NULL;
-}
-
-typedef struct private_kernel_netlink_ipsec_t private_kernel_netlink_ipsec_t;
-
-/**
- * Private variables and functions of kernel_netlink class.
- */
-struct private_kernel_netlink_ipsec_t {
-	/**
-	 * Public part of the kernel_netlink_t object
-	 */
-	kernel_netlink_ipsec_t public;
-
-	/**
-	 * Mutex to lock access to installed policies
-	 */
-	mutex_t *mutex;
-
-	/**
-	 * Hash table of installed policies (policy_entry_t)
-	 */
-	hashtable_t *policies;
-
-	/**
-	 * Hash table of IPsec SAs using policies (ipsec_sa_t)
-	 */
-	hashtable_t *sas;
-
-	/**
-	 * Netlink xfrm socket (IPsec)
-	 */
-	netlink_socket_t *socket_xfrm;
-
-	/**
-	 * Netlink xfrm socket to receive acquire and expire events
-	 */
-	int socket_xfrm_events;
-
-	/**
-	 * Whether to install routes along policies
-	 */
-	bool install_routes;
-
-	/**
-	 * Whether to set protocol and ports on selector installed with transport
-	 * mode IPsec SAs
-	 */
-	bool proto_port_transport;
-
-	/**
-	 * Whether to always use UPDATE to install policies
-	 */
-	bool policy_update;
-
-	/**
-	 * Installed port based IKE bypass policies, as bypass_t
-	 */
-	array_t *bypass;
-};
-
-typedef struct route_entry_t route_entry_t;
-
-/**
- * Installed routing entry
- */
-struct route_entry_t {
-	/** Name of the interface the route is bound to */
-	char *if_name;
-
-	/** Source ip of the route */
-	host_t *src_ip;
-
-	/** Gateway for this route */
-	host_t *gateway;
-
-	/** Destination net */
-	chunk_t dst_net;
-
-	/** Destination net prefixlen */
-	u_int8_t prefixlen;
-};
-
-/**
- * Destroy a route_entry_t object
- */
-static void route_entry_destroy(route_entry_t *this)
-{
-	free(this->if_name);
-	this->src_ip->destroy(this->src_ip);
-	DESTROY_IF(this->gateway);
-	chunk_free(&this->dst_net);
-	free(this);
-}
-
-/**
- * Compare two route_entry_t objects
- */
-static bool route_entry_equals(route_entry_t *a, route_entry_t *b)
-{
-	return a->if_name && b->if_name && streq(a->if_name, b->if_name) &&
-		   a->src_ip->ip_equals(a->src_ip, b->src_ip) &&
-		   a->gateway->ip_equals(a->gateway, b->gateway) &&
-		   chunk_equals(a->dst_net, b->dst_net) && a->prefixlen == b->prefixlen;
-}
-
-typedef struct ipsec_sa_t ipsec_sa_t;
-
-/**
- * IPsec SA assigned to a policy.
- */
-struct ipsec_sa_t {
-	/** Source address of this SA */
-	host_t *src;
-
-	/** Destination address of this SA */
-	host_t *dst;
-
-	/** Optional mark */
-	mark_t mark;
-
-	/** Description of this SA */
-	ipsec_sa_cfg_t cfg;
-
-	/** Reference count for this SA */
-	refcount_t refcount;
-};
-
-/**
- * Hash function for ipsec_sa_t objects
- */
-static u_int ipsec_sa_hash(ipsec_sa_t *sa)
-{
-	return chunk_hash_inc(sa->src->get_address(sa->src),
-						  chunk_hash_inc(sa->dst->get_address(sa->dst),
-						  chunk_hash_inc(chunk_from_thing(sa->mark),
-						  chunk_hash(chunk_from_thing(sa->cfg)))));
-}
-
-/**
- * Equality function for ipsec_sa_t objects
- */
-static bool ipsec_sa_equals(ipsec_sa_t *sa, ipsec_sa_t *other_sa)
-{
-	return sa->src->ip_equals(sa->src, other_sa->src) &&
-		   sa->dst->ip_equals(sa->dst, other_sa->dst) &&
-		   memeq(&sa->mark, &other_sa->mark, sizeof(mark_t)) &&
-		   memeq(&sa->cfg, &other_sa->cfg, sizeof(ipsec_sa_cfg_t));
-}
-
-/**
- * Allocate or reference an IPsec SA object
- */
-static ipsec_sa_t *ipsec_sa_create(private_kernel_netlink_ipsec_t *this,
-								   host_t *src, host_t *dst, mark_t mark,
-								   ipsec_sa_cfg_t *cfg)
-{
-	ipsec_sa_t *sa, *found;
-	INIT(sa,
-		.src = src,
-		.dst = dst,
-		.mark = mark,
-		.cfg = *cfg,
-	);
-	found = this->sas->get(this->sas, sa);
-	if (!found)
-	{
-		sa->src = src->clone(src);
-		sa->dst = dst->clone(dst);
-		this->sas->put(this->sas, sa, sa);
-	}
-	else
-	{
-		free(sa);
-		sa = found;
-	}
-	ref_get(&sa->refcount);
-	return sa;
-}
-
-/**
- * Release and destroy an IPsec SA object
- */
-static void ipsec_sa_destroy(private_kernel_netlink_ipsec_t *this,
-							 ipsec_sa_t *sa)
-{
-	if (ref_put(&sa->refcount))
-	{
-		this->sas->remove(this->sas, sa);
-		DESTROY_IF(sa->src);
-		DESTROY_IF(sa->dst);
-		free(sa);
-	}
-}
-
-typedef struct policy_sa_t policy_sa_t;
-typedef struct policy_sa_fwd_t policy_sa_fwd_t;
-
-/**
- * Mapping between a policy and an IPsec SA.
- */
-struct policy_sa_t {
-	/** Priority assigned to the policy when installed with this SA */
-	u_int32_t priority;
-
-	/** Type of the policy */
-	policy_type_t type;
-
-	/** Assigned SA */
-	ipsec_sa_t *sa;
-};
-
-/**
- * For forward policies we also cache the traffic selectors in order to install
- * the route.
- */
-struct policy_sa_fwd_t {
-	/** Generic interface */
-	policy_sa_t generic;
-
-	/** Source traffic selector of this policy */
-	traffic_selector_t *src_ts;
-
-	/** Destination traffic selector of this policy */
-	traffic_selector_t *dst_ts;
-};
-
-/**
- * Create a policy_sa(_fwd)_t object
- */
-static policy_sa_t *policy_sa_create(private_kernel_netlink_ipsec_t *this,
-	policy_dir_t dir, policy_type_t type, host_t *src, host_t *dst,
-	traffic_selector_t *src_ts, traffic_selector_t *dst_ts, mark_t mark,
-	ipsec_sa_cfg_t *cfg)
-{
-	policy_sa_t *policy;
-
-	if (dir == POLICY_FWD)
-	{
-		policy_sa_fwd_t *fwd;
-		INIT(fwd,
-			.src_ts = src_ts->clone(src_ts),
-			.dst_ts = dst_ts->clone(dst_ts),
-		);
-		policy = &fwd->generic;
-	}
-	else
-	{
-		INIT(policy, .priority = 0);
-	}
-	policy->type = type;
-	policy->sa = ipsec_sa_create(this, src, dst, mark, cfg);
-	return policy;
-}
-
-/**
- * Destroy a policy_sa(_fwd)_t object
- */
-static void policy_sa_destroy(policy_sa_t *policy, policy_dir_t *dir,
-							  private_kernel_netlink_ipsec_t *this)
-{
-	if (*dir == POLICY_FWD)
-	{
-		policy_sa_fwd_t *fwd = (policy_sa_fwd_t*)policy;
-		fwd->src_ts->destroy(fwd->src_ts);
-		fwd->dst_ts->destroy(fwd->dst_ts);
-	}
-	ipsec_sa_destroy(this, policy->sa);
-	free(policy);
-}
-
-typedef struct policy_entry_t policy_entry_t;
-
-/**
- * Installed kernel policy.
- */
-struct policy_entry_t {
-
-	/** Direction of this policy: in, out, forward */
-	u_int8_t direction;
-
-	/** Parameters of installed policy */
-	struct xfrm_selector sel;
-
-	/** Optional mark */
-	u_int32_t mark;
-
-	/** Associated route installed for this policy */
-	route_entry_t *route;
-
-	/** List of SAs this policy is used by, ordered by priority */
-	linked_list_t *used_by;
-
-	/** reqid for this policy */
-	u_int32_t reqid;
-};
-
-/**
- * Destroy a policy_entry_t object
- */
-static void policy_entry_destroy(private_kernel_netlink_ipsec_t *this,
-								 policy_entry_t *policy)
-{
-	if (policy->route)
-	{
-		route_entry_destroy(policy->route);
-	}
-	if (policy->used_by)
-	{
-		policy->used_by->invoke_function(policy->used_by,
-										(linked_list_invoke_t)policy_sa_destroy,
-										 &policy->direction, this);
-		policy->used_by->destroy(policy->used_by);
-	}
-	free(policy);
-}
-
-/**
- * Hash function for policy_entry_t objects
- */
-static u_int policy_hash(policy_entry_t *key)
-{
-	chunk_t chunk = chunk_from_thing(key->sel);
-	return chunk_hash_inc(chunk, chunk_hash(chunk_from_thing(key->mark)));
-}
-
-/**
- * Equality function for policy_entry_t objects
- */
-static bool policy_equals(policy_entry_t *key, policy_entry_t *other_key)
-{
-	return memeq(&key->sel, &other_key->sel, sizeof(struct xfrm_selector)) &&
-		   key->mark == other_key->mark &&
-		   key->direction == other_key->direction;
-}
-
-/**
- * Calculate the priority of a policy
- */
-static inline u_int32_t get_priority(policy_entry_t *policy,
-									 policy_priority_t prio)
-{
-	u_int32_t priority = PRIO_BASE;
-	switch (prio)
-	{
-		case POLICY_PRIORITY_FALLBACK:
-			priority <<= 1;
-			/* fall-through */
-		case POLICY_PRIORITY_ROUTED:
-			priority <<= 1;
-			/* fall-through */
-		case POLICY_PRIORITY_DEFAULT:
-			priority <<= 1;
-			/* fall-through */
-		case POLICY_PRIORITY_PASS:
-			break;
-	}
-	/* calculate priority based on selector size, small size = high prio */
-	priority -= policy->sel.prefixlen_s;
-	priority -= policy->sel.prefixlen_d;
-	priority <<= 2; /* make some room for the two flags */
-	priority += policy->sel.sport_mask || policy->sel.dport_mask ? 0 : 2;
-	priority += policy->sel.proto ? 0 : 1;
-	return priority;
-}
-
-/**
- * Convert the general ipsec mode to the one defined in xfrm.h
- */
-static u_int8_t mode2kernel(ipsec_mode_t mode)
-{
-	switch (mode)
-	{
-		case MODE_TRANSPORT:
-			return XFRM_MODE_TRANSPORT;
-		case MODE_TUNNEL:
-			return XFRM_MODE_TUNNEL;
-		case MODE_BEET:
-			return XFRM_MODE_BEET;
-		default:
-			return mode;
-	}
-}
-
-/**
- * Convert a host_t to a struct xfrm_address
- */
-static void host2xfrm(host_t *host, xfrm_address_t *xfrm)
-{
-	chunk_t chunk = host->get_address(host);
-	memcpy(xfrm, chunk.ptr, min(chunk.len, sizeof(xfrm_address_t)));
-}
-
-/**
- * Convert a struct xfrm_address to a host_t
- */
-static host_t* xfrm2host(int family, xfrm_address_t *xfrm, u_int16_t port)
-{
-	chunk_t chunk;
-
-	switch (family)
-	{
-		case AF_INET:
-			chunk = chunk_create((u_char*)&xfrm->a4, sizeof(xfrm->a4));
-			break;
-		case AF_INET6:
-			chunk = chunk_create((u_char*)&xfrm->a6, sizeof(xfrm->a6));
-			break;
-		default:
-			return NULL;
-	}
-	return host_create_from_chunk(family, chunk, ntohs(port));
-}
-
-/**
- * Convert a traffic selector address range to subnet and its mask.
- */
-static void ts2subnet(traffic_selector_t* ts,
-					  xfrm_address_t *net, u_int8_t *mask)
-{
-	host_t *net_host;
-	chunk_t net_chunk;
-
-	ts->to_subnet(ts, &net_host, mask);
-	net_chunk = net_host->get_address(net_host);
-	memcpy(net, net_chunk.ptr, net_chunk.len);
-	net_host->destroy(net_host);
-}
-
-/**
- * Convert a traffic selector port range to port/portmask
- */
-static void ts2ports(traffic_selector_t* ts,
-					 u_int16_t *port, u_int16_t *mask)
-{
-	/* Linux does not seem to accept complex portmasks. Only
-	 * any or a specific port is allowed. We set to any, if we have
-	 * a port range, or to a specific, if we have one port only.
-	 */
-	u_int16_t from, to;
-
-	from = ts->get_from_port(ts);
-	to = ts->get_to_port(ts);
-
-	if (from == to)
-	{
-		*port = htons(from);
-		*mask = ~0;
-	}
-	else
-	{
-		*port = 0;
-		*mask = 0;
-	}
-}
-
-/**
- * Convert a pair of traffic_selectors to an xfrm_selector
- */
-static struct xfrm_selector ts2selector(traffic_selector_t *src,
-										traffic_selector_t *dst)
-{
-	struct xfrm_selector sel;
-	u_int16_t port;
-
-	memset(&sel, 0, sizeof(sel));
-	sel.family = (src->get_type(src) == TS_IPV4_ADDR_RANGE) ? AF_INET : AF_INET6;
-	/* src or dest proto may be "any" (0), use more restrictive one */
-	sel.proto = max(src->get_protocol(src), dst->get_protocol(dst));
-	ts2subnet(dst, &sel.daddr, &sel.prefixlen_d);
-	ts2subnet(src, &sel.saddr, &sel.prefixlen_s);
-	ts2ports(dst, &sel.dport, &sel.dport_mask);
-	ts2ports(src, &sel.sport, &sel.sport_mask);
-	if ((sel.proto == IPPROTO_ICMP || sel.proto == IPPROTO_ICMPV6) &&
-		(sel.dport || sel.sport))
-	{
-		/* the kernel expects the ICMP type and code in the source and
-		 * destination port fields, respectively. */
-		port = ntohs(max(sel.dport, sel.sport));
-		sel.sport = htons(traffic_selector_icmp_type(port));
-		sel.sport_mask = sel.sport ? ~0 : 0;
-		sel.dport = htons(traffic_selector_icmp_code(port));
-		sel.dport_mask = sel.dport ? ~0 : 0;
-	}
-	sel.ifindex = 0;
-	sel.user = 0;
-
-	return sel;
-}
-
-/**
- * Convert an xfrm_selector to a src|dst traffic_selector
- */
-static traffic_selector_t* selector2ts(struct xfrm_selector *sel, bool src)
-{
-	u_char *addr;
-	u_int8_t prefixlen;
-	u_int16_t port = 0;
-	host_t *host = NULL;
-
-	if (src)
-	{
-		addr = (u_char*)&sel->saddr;
-		prefixlen = sel->prefixlen_s;
-		if (sel->sport_mask)
-		{
-			port = ntohs(sel->sport);
-		}
-	}
-	else
-	{
-		addr = (u_char*)&sel->daddr;
-		prefixlen = sel->prefixlen_d;
-		if (sel->dport_mask)
-		{
-			port = ntohs(sel->dport);
-		}
-	}
-	if (sel->proto == IPPROTO_ICMP || sel->proto == IPPROTO_ICMPV6)
-	{	/* convert ICMP[v6] message type and code as supplied by the kernel in
-		 * source and destination ports (both in network order) */
-		port = (sel->sport >> 8) | (sel->dport & 0xff00);
-		port = ntohs(port);
-	}
-	/* The Linux 2.6 kernel does not set the selector's family field,
-	 * so as a kludge we additionally test the prefix length.
-	 */
-	if (sel->family == AF_INET || sel->prefixlen_s == 32)
-	{
-		host = host_create_from_chunk(AF_INET, chunk_create(addr, 4), 0);
-	}
-	else if (sel->family == AF_INET6 || sel->prefixlen_s == 128)
-	{
-		host = host_create_from_chunk(AF_INET6, chunk_create(addr, 16), 0);
-	}
-
-	if (host)
-	{
-		return traffic_selector_create_from_subnet(host, prefixlen,
-											sel->proto, port, port ?: 65535);
-	}
-	return NULL;
-}
-
-/**
- * Process a XFRM_MSG_ACQUIRE from kernel
- */
-static void process_acquire(private_kernel_netlink_ipsec_t *this,
-							struct nlmsghdr *hdr)
-{
-	struct xfrm_user_acquire *acquire;
-	struct rtattr *rta;
-	size_t rtasize;
-	traffic_selector_t *src_ts, *dst_ts;
-	u_int32_t reqid = 0;
-	int proto = 0;
-
-	acquire = NLMSG_DATA(hdr);
-	rta = XFRM_RTA(hdr, struct xfrm_user_acquire);
-	rtasize = XFRM_PAYLOAD(hdr, struct xfrm_user_acquire);
-
-	DBG2(DBG_KNL, "received a XFRM_MSG_ACQUIRE");
-
-	while (RTA_OK(rta, rtasize))
-	{
-		DBG2(DBG_KNL, "  %N", xfrm_attr_type_names, rta->rta_type);
-
-		if (rta->rta_type == XFRMA_TMPL)
-		{
-			struct xfrm_user_tmpl* tmpl;
-			tmpl = (struct xfrm_user_tmpl*)RTA_DATA(rta);
-			reqid = tmpl->reqid;
-			proto = tmpl->id.proto;
-		}
-		rta = RTA_NEXT(rta, rtasize);
-	}
-	switch (proto)
-	{
-		case 0:
-		case IPPROTO_ESP:
-		case IPPROTO_AH:
-			break;
-		default:
-			/* acquire for AH/ESP only, not for IPCOMP */
-			return;
-	}
-	src_ts = selector2ts(&acquire->sel, TRUE);
-	dst_ts = selector2ts(&acquire->sel, FALSE);
-
-	hydra->kernel_interface->acquire(hydra->kernel_interface, reqid, src_ts,
-									 dst_ts);
-}
-
-/**
- * Process a XFRM_MSG_EXPIRE from kernel
- */
-static void process_expire(private_kernel_netlink_ipsec_t *this,
-						   struct nlmsghdr *hdr)
-{
-	struct xfrm_user_expire *expire;
-	u_int32_t spi;
-	u_int8_t protocol;
-	host_t *dst;
-
-	expire = NLMSG_DATA(hdr);
-	protocol = expire->state.id.proto;
-	spi = expire->state.id.spi;
-
-	DBG2(DBG_KNL, "received a XFRM_MSG_EXPIRE");
-
-	if (protocol == IPPROTO_ESP || protocol == IPPROTO_AH)
-	{
-		dst = xfrm2host(expire->state.family, &expire->state.id.daddr, 0);
-		if (dst)
-		{
-			hydra->kernel_interface->expire(hydra->kernel_interface, protocol,
-											spi, dst, expire->hard != 0);
-			dst->destroy(dst);
-		}
-	}
-}
-
-/**
- * Process a XFRM_MSG_MIGRATE from kernel
- */
-static void process_migrate(private_kernel_netlink_ipsec_t *this,
-							struct nlmsghdr *hdr)
-{
-	struct xfrm_userpolicy_id *policy_id;
-	struct rtattr *rta;
-	size_t rtasize;
-	traffic_selector_t *src_ts, *dst_ts;
-	host_t *local = NULL, *remote = NULL;
-	host_t *old_src = NULL, *old_dst = NULL;
-	host_t *new_src = NULL, *new_dst = NULL;
-	u_int32_t reqid = 0;
-	policy_dir_t dir;
-
-	policy_id = NLMSG_DATA(hdr);
-	rta     = XFRM_RTA(hdr, struct xfrm_userpolicy_id);
-	rtasize = XFRM_PAYLOAD(hdr, struct xfrm_userpolicy_id);
-
-	DBG2(DBG_KNL, "received a XFRM_MSG_MIGRATE");
-
-	src_ts = selector2ts(&policy_id->sel, TRUE);
-	dst_ts = selector2ts(&policy_id->sel, FALSE);
-	dir = (policy_dir_t)policy_id->dir;
-
-	DBG2(DBG_KNL, "  policy: %R === %R %N", src_ts, dst_ts, policy_dir_names);
-
-	while (RTA_OK(rta, rtasize))
-	{
-		DBG2(DBG_KNL, "  %N", xfrm_attr_type_names, rta->rta_type);
-		if (rta->rta_type == XFRMA_KMADDRESS)
-		{
-			struct xfrm_user_kmaddress *kmaddress;
-
-			kmaddress = (struct xfrm_user_kmaddress*)RTA_DATA(rta);
-			local  = xfrm2host(kmaddress->family, &kmaddress->local, 0);
-			remote = xfrm2host(kmaddress->family, &kmaddress->remote, 0);
-			DBG2(DBG_KNL, "  kmaddress: %H...%H", local, remote);
-		}
-		else if (rta->rta_type == XFRMA_MIGRATE)
-		{
-			struct xfrm_user_migrate *migrate;
-
-			migrate = (struct xfrm_user_migrate*)RTA_DATA(rta);
-			old_src = xfrm2host(migrate->old_family, &migrate->old_saddr, 0);
-			old_dst = xfrm2host(migrate->old_family, &migrate->old_daddr, 0);
-			new_src = xfrm2host(migrate->new_family, &migrate->new_saddr, 0);
-			new_dst = xfrm2host(migrate->new_family, &migrate->new_daddr, 0);
-			reqid = migrate->reqid;
-			DBG2(DBG_KNL, "  migrate %H...%H to %H...%H, reqid {%u}",
-						   old_src, old_dst, new_src, new_dst, reqid);
-			DESTROY_IF(old_src);
-			DESTROY_IF(old_dst);
-			DESTROY_IF(new_src);
-			DESTROY_IF(new_dst);
-		}
-		rta = RTA_NEXT(rta, rtasize);
-	}
-
-	if (src_ts && dst_ts && local && remote)
-	{
-		hydra->kernel_interface->migrate(hydra->kernel_interface, reqid,
-										 src_ts, dst_ts, dir, local, remote);
-	}
-	else
-	{
-		DESTROY_IF(src_ts);
-		DESTROY_IF(dst_ts);
-		DESTROY_IF(local);
-		DESTROY_IF(remote);
-	}
-}
-
-/**
- * Process a XFRM_MSG_MAPPING from kernel
- */
-static void process_mapping(private_kernel_netlink_ipsec_t *this,
-							struct nlmsghdr *hdr)
-{
-	struct xfrm_user_mapping *mapping;
-	u_int32_t spi;
-
-	mapping = NLMSG_DATA(hdr);
-	spi = mapping->id.spi;
-
-	DBG2(DBG_KNL, "received a XFRM_MSG_MAPPING");
-
-	if (mapping->id.proto == IPPROTO_ESP)
-	{
-		host_t *dst, *new;
-
-		dst = xfrm2host(mapping->id.family, &mapping->id.daddr, 0);
-		if (dst)
-		{
-			new = xfrm2host(mapping->id.family, &mapping->new_saddr,
-							mapping->new_sport);
-			if (new)
-			{
-				hydra->kernel_interface->mapping(hydra->kernel_interface,
-												 IPPROTO_ESP, spi, dst, new);
-				new->destroy(new);
-			}
-			dst->destroy(dst);
-		}
-	}
-}
-
-/**
- * Receives events from kernel
- */
-static bool receive_events(private_kernel_netlink_ipsec_t *this, int fd,
-						   watcher_event_t event)
-{
-	char response[1024];
-	struct nlmsghdr *hdr = (struct nlmsghdr*)response;
-	struct sockaddr_nl addr;
-	socklen_t addr_len = sizeof(addr);
-	int len;
-
-	len = recvfrom(this->socket_xfrm_events, response, sizeof(response),
-				   MSG_DONTWAIT, (struct sockaddr*)&addr, &addr_len);
-	if (len < 0)
-	{
-		switch (errno)
-		{
-			case EINTR:
-				/* interrupted, try again */
-				return TRUE;
-			case EAGAIN:
-				/* no data ready, select again */
-				return TRUE;
-			default:
-				DBG1(DBG_KNL, "unable to receive from xfrm event socket");
-				sleep(1);
-				return TRUE;
-		}
-	}
-
-	if (addr.nl_pid != 0)
-	{	/* not from kernel. not interested, try another one */
-		return TRUE;
-	}
-
-	while (NLMSG_OK(hdr, len))
-	{
-		switch (hdr->nlmsg_type)
-		{
-			case XFRM_MSG_ACQUIRE:
-				process_acquire(this, hdr);
-				break;
-			case XFRM_MSG_EXPIRE:
-				process_expire(this, hdr);
-				break;
-			case XFRM_MSG_MIGRATE:
-				process_migrate(this, hdr);
-				break;
-			case XFRM_MSG_MAPPING:
-				process_mapping(this, hdr);
-				break;
-			default:
-				DBG1(DBG_KNL, "received unknown event from xfrm event "
-							  "socket: %d", hdr->nlmsg_type);
-				break;
-		}
-		hdr = NLMSG_NEXT(hdr, len);
-	}
-	return TRUE;
-}
-
-METHOD(kernel_ipsec_t, get_features, kernel_feature_t,
-	private_kernel_netlink_ipsec_t *this)
-{
-	return KERNEL_ESP_V3_TFC;
-}
-
-/**
- * Get an SPI for a specific protocol from the kernel.
- */
-static status_t get_spi_internal(private_kernel_netlink_ipsec_t *this,
-	host_t *src, host_t *dst, u_int8_t proto, u_int32_t min, u_int32_t max,
-	u_int32_t *spi)
-{
-	netlink_buf_t request;
-	struct nlmsghdr *hdr, *out;
-	struct xfrm_userspi_info *userspi;
-	u_int32_t received_spi = 0;
-	size_t len;
-
-	memset(&request, 0, sizeof(request));
-
-	hdr = &request.hdr;
-	hdr->nlmsg_flags = NLM_F_REQUEST;
-	hdr->nlmsg_type = XFRM_MSG_ALLOCSPI;
-	hdr->nlmsg_len = NLMSG_LENGTH(sizeof(struct xfrm_userspi_info));
-
-	userspi = NLMSG_DATA(hdr);
-	host2xfrm(src, &userspi->info.saddr);
-	host2xfrm(dst, &userspi->info.id.daddr);
-	userspi->info.id.proto = proto;
-	userspi->info.mode = XFRM_MODE_TUNNEL;
-	userspi->info.family = src->get_family(src);
-	userspi->min = min;
-	userspi->max = max;
-
-	if (this->socket_xfrm->send(this->socket_xfrm, hdr, &out, &len) == SUCCESS)
-	{
-		hdr = out;
-		while (NLMSG_OK(hdr, len))
-		{
-			switch (hdr->nlmsg_type)
-			{
-				case XFRM_MSG_NEWSA:
-				{
-					struct xfrm_usersa_info* usersa = NLMSG_DATA(hdr);
-					received_spi = usersa->id.spi;
-					break;
-				}
-				case NLMSG_ERROR:
-				{
-					struct nlmsgerr *err = NLMSG_DATA(hdr);
-					DBG1(DBG_KNL, "allocating SPI failed: %s (%d)",
-						 strerror(-err->error), -err->error);
-					break;
-				}
-				default:
-					hdr = NLMSG_NEXT(hdr, len);
-					continue;
-				case NLMSG_DONE:
-					break;
-			}
-			break;
-		}
-		free(out);
-	}
-
-	if (received_spi == 0)
-	{
-		return FAILED;
-	}
-
-	*spi = received_spi;
-	return SUCCESS;
-}
-
-METHOD(kernel_ipsec_t, get_spi, status_t,
-	private_kernel_netlink_ipsec_t *this, host_t *src, host_t *dst,
-	u_int8_t protocol, u_int32_t *spi)
-{
-	if (get_spi_internal(this, src, dst, protocol,
-						 0xc0000000, 0xcFFFFFFF, spi) != SUCCESS)
-	{
-		DBG1(DBG_KNL, "unable to get SPI");
-		return FAILED;
-	}
-
-	DBG2(DBG_KNL, "got SPI %.8x", ntohl(*spi));
-	return SUCCESS;
-}
-
-METHOD(kernel_ipsec_t, get_cpi, status_t,
-	private_kernel_netlink_ipsec_t *this, host_t *src, host_t *dst,
-	u_int16_t *cpi)
-{
-	u_int32_t received_spi = 0;
-
-	if (get_spi_internal(this, src, dst, IPPROTO_COMP,
-						 0x100, 0xEFFF, &received_spi) != SUCCESS)
-	{
-		DBG1(DBG_KNL, "unable to get CPI");
-		return FAILED;
-	}
-
-	*cpi = htons((u_int16_t)ntohl(received_spi));
-
-	DBG2(DBG_KNL, "got CPI %.4x", ntohs(*cpi));
-	return SUCCESS;
-}
-
-/**
- * Add a XFRM mark to message if required
- */
-static bool add_mark(struct nlmsghdr *hdr, int buflen, mark_t mark)
-{
-	if (mark.value)
-	{
-		struct xfrm_mark *xmrk;
-
-		xmrk = netlink_reserve(hdr, buflen, XFRMA_MARK, sizeof(*xmrk));
-		if (!xmrk)
-		{
-			return FALSE;
-		}
-		xmrk->v = mark.value;
-		xmrk->m = mark.mask;
-	}
-	return TRUE;
-}
-
-METHOD(kernel_ipsec_t, add_sa, status_t,
-	private_kernel_netlink_ipsec_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)
-{
-	netlink_buf_t request;
-	char *alg_name;
-	struct nlmsghdr *hdr;
-	struct xfrm_usersa_info *sa;
-	u_int16_t icv_size = 64;
-	ipsec_mode_t original_mode = mode;
-	traffic_selector_t *first_src_ts, *first_dst_ts;
-	status_t status = FAILED;
-
-	/* if IPComp is used, we install an additional IPComp SA. if the cpi is 0
-	 * we are in the recursive call below */
-	if (ipcomp != IPCOMP_NONE && cpi != 0)
-	{
-		lifetime_cfg_t lft = {{0,0,0},{0,0,0},{0,0,0}};
-		add_sa(this, src, dst, htonl(ntohs(cpi)), IPPROTO_COMP, reqid, mark,
-			   tfc, &lft, ENCR_UNDEFINED, chunk_empty, AUTH_UNDEFINED,
-			   chunk_empty, mode, ipcomp, 0, 0, initiator, FALSE, FALSE,
-			   inbound, update, src_ts, dst_ts);
-		ipcomp = IPCOMP_NONE;
-		/* use transport mode ESP SA, IPComp uses tunnel mode */
-		mode = MODE_TRANSPORT;
-	}
-
-	memset(&request, 0, sizeof(request));
-
-	DBG2(DBG_KNL, "adding SAD entry with SPI %.8x and reqid {%u}  (mark "
-				  "%u/0x%08x)", ntohl(spi), reqid, mark.value, mark.mask);
-
-	hdr = &request.hdr;
-	hdr->nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK;
-	hdr->nlmsg_type = update ? XFRM_MSG_UPDSA : XFRM_MSG_NEWSA;
-	hdr->nlmsg_len = NLMSG_LENGTH(sizeof(struct xfrm_usersa_info));
-
-	sa = NLMSG_DATA(hdr);
-	host2xfrm(src, &sa->saddr);
-	host2xfrm(dst, &sa->id.daddr);
-	sa->id.spi = spi;
-	sa->id.proto = protocol;
-	sa->family = src->get_family(src);
-	sa->mode = mode2kernel(mode);
-	switch (mode)
-	{
-		case MODE_TUNNEL:
-			sa->flags |= XFRM_STATE_AF_UNSPEC;
-			break;
-		case MODE_BEET:
-		case MODE_TRANSPORT:
-			if (original_mode == MODE_TUNNEL)
-			{	/* don't install selectors for switched SAs.  because only one
-				 * selector can be installed other traffic would get dropped */
-				break;
-			}
-			if (src_ts->get_first(src_ts, (void**)&first_src_ts) == SUCCESS &&
-				dst_ts->get_first(dst_ts, (void**)&first_dst_ts) == SUCCESS)
-			{
-				sa->sel = ts2selector(first_src_ts, first_dst_ts);
-				if (!this->proto_port_transport)
-				{
-					/* don't install proto/port on SA. This would break
-					 * potential secondary SAs for the same address using a
-					 * different prot/port. */
-					sa->sel.proto = 0;
-					sa->sel.dport = sa->sel.dport_mask = 0;
-					sa->sel.sport = sa->sel.sport_mask = 0;
-				}
-			}
-			break;
-		default:
-			break;
-	}
-
-	sa->reqid = reqid;
-	sa->lft.soft_byte_limit = XFRM_LIMIT(lifetime->bytes.rekey);
-	sa->lft.hard_byte_limit = XFRM_LIMIT(lifetime->bytes.life);
-	sa->lft.soft_packet_limit = XFRM_LIMIT(lifetime->packets.rekey);
-	sa->lft.hard_packet_limit = XFRM_LIMIT(lifetime->packets.life);
-	/* we use lifetimes since added, not since used */
-	sa->lft.soft_add_expires_seconds = lifetime->time.rekey;
-	sa->lft.hard_add_expires_seconds = lifetime->time.life;
-	sa->lft.soft_use_expires_seconds = 0;
-	sa->lft.hard_use_expires_seconds = 0;
-
-	switch (enc_alg)
-	{
-		case ENCR_UNDEFINED:
-			/* no encryption */
-			break;
-		case ENCR_AES_CCM_ICV16:
-		case ENCR_AES_GCM_ICV16:
-		case ENCR_NULL_AUTH_AES_GMAC:
-		case ENCR_CAMELLIA_CCM_ICV16:
-		case ENCR_CHACHA20_POLY1305:
-			icv_size += 32;
-			/* FALL */
-		case ENCR_AES_CCM_ICV12:
-		case ENCR_AES_GCM_ICV12:
-		case ENCR_CAMELLIA_CCM_ICV12:
-			icv_size += 32;
-			/* FALL */
-		case ENCR_AES_CCM_ICV8:
-		case ENCR_AES_GCM_ICV8:
-		case ENCR_CAMELLIA_CCM_ICV8:
-		{
-			struct xfrm_algo_aead *algo;
-
-			alg_name = lookup_algorithm(ENCRYPTION_ALGORITHM, enc_alg);
-			if (alg_name == NULL)
-			{
-				DBG1(DBG_KNL, "algorithm %N not supported by kernel!",
-						 encryption_algorithm_names, enc_alg);
-					goto failed;
-			}
-			DBG2(DBG_KNL, "  using encryption algorithm %N with key size %d",
-				 encryption_algorithm_names, enc_alg, enc_key.len * 8);
-
-			algo = netlink_reserve(hdr, sizeof(request), XFRMA_ALG_AEAD,
-								   sizeof(*algo) + enc_key.len);
-			if (!algo)
-			{
-				goto failed;
-			}
-			algo->alg_key_len = enc_key.len * 8;
-			algo->alg_icv_len = icv_size;
-			strncpy(algo->alg_name, alg_name, sizeof(algo->alg_name));
-			algo->alg_name[sizeof(algo->alg_name) - 1] = '\0';
-			memcpy(algo->alg_key, enc_key.ptr, enc_key.len);
-			break;
-		}
-		default:
-		{
-			struct xfrm_algo *algo;
-
-			alg_name = lookup_algorithm(ENCRYPTION_ALGORITHM, enc_alg);
-			if (alg_name == NULL)
-			{
-				DBG1(DBG_KNL, "algorithm %N not supported by kernel!",
-					 encryption_algorithm_names, enc_alg);
-				goto failed;
-			}
-			DBG2(DBG_KNL, "  using encryption algorithm %N with key size %d",
-				 encryption_algorithm_names, enc_alg, enc_key.len * 8);
-
-			algo = netlink_reserve(hdr, sizeof(request), XFRMA_ALG_CRYPT,
-								   sizeof(*algo) + enc_key.len);
-			if (!algo)
-			{
-				goto failed;
-			}
-			algo->alg_key_len = enc_key.len * 8;
-			strncpy(algo->alg_name, alg_name, sizeof(algo->alg_name));
-			algo->alg_name[sizeof(algo->alg_name) - 1] = '\0';
-			memcpy(algo->alg_key, enc_key.ptr, enc_key.len);
-		}
-	}
-
-	if (int_alg != AUTH_UNDEFINED)
-	{
-		u_int trunc_len = 0;
-
-		alg_name = lookup_algorithm(INTEGRITY_ALGORITHM, int_alg);
-		if (alg_name == NULL)
-		{
-			DBG1(DBG_KNL, "algorithm %N not supported by kernel!",
-				 integrity_algorithm_names, int_alg);
-			goto failed;
-		}
-		DBG2(DBG_KNL, "  using integrity algorithm %N with key size %d",
-			 integrity_algorithm_names, int_alg, int_key.len * 8);
-
-		switch (int_alg)
-		{
-			case AUTH_HMAC_MD5_128:
-			case AUTH_HMAC_SHA2_256_128:
-				trunc_len = 128;
-				break;
-			case AUTH_HMAC_SHA1_160:
-				trunc_len = 160;
-				break;
-			default:
-				break;
-		}
-
-		if (trunc_len)
-		{
-			struct xfrm_algo_auth* algo;
-
-			/* the kernel uses SHA256 with 96 bit truncation by default,
-			 * use specified truncation size supported by newer kernels.
-			 * also use this for untruncated MD5 and SHA1. */
-			algo = netlink_reserve(hdr, sizeof(request), XFRMA_ALG_AUTH_TRUNC,
-								   sizeof(*algo) + int_key.len);
-			if (!algo)
-			{
-				goto failed;
-			}
-			algo->alg_key_len = int_key.len * 8;
-			algo->alg_trunc_len = trunc_len;
-			strncpy(algo->alg_name, alg_name, sizeof(algo->alg_name));
-			algo->alg_name[sizeof(algo->alg_name) - 1] = '\0';
-			memcpy(algo->alg_key, int_key.ptr, int_key.len);
-		}
-		else
-		{
-			struct xfrm_algo* algo;
-
-			algo = netlink_reserve(hdr, sizeof(request), XFRMA_ALG_AUTH,
-								   sizeof(*algo) + int_key.len);
-			if (!algo)
-			{
-				goto failed;
-			}
-			algo->alg_key_len = int_key.len * 8;
-			strncpy(algo->alg_name, alg_name, sizeof(algo->alg_name));
-			algo->alg_name[sizeof(algo->alg_name) - 1] = '\0';
-			memcpy(algo->alg_key, int_key.ptr, int_key.len);
-		}
-	}
-
-	if (ipcomp != IPCOMP_NONE)
-	{
-		struct xfrm_algo* algo;
-
-		alg_name = lookup_algorithm(COMPRESSION_ALGORITHM, ipcomp);
-		if (alg_name == NULL)
-		{
-			DBG1(DBG_KNL, "algorithm %N not supported by kernel!",
-				 ipcomp_transform_names, ipcomp);
-			goto failed;
-		}
-		DBG2(DBG_KNL, "  using compression algorithm %N",
-			 ipcomp_transform_names, ipcomp);
-
-		algo = netlink_reserve(hdr, sizeof(request), XFRMA_ALG_COMP,
-							   sizeof(*algo));
-		if (!algo)
-		{
-			goto failed;
-		}
-		algo->alg_key_len = 0;
-		strncpy(algo->alg_name, alg_name, sizeof(algo->alg_name));
-		algo->alg_name[sizeof(algo->alg_name) - 1] = '\0';
-	}
-
-	if (encap)
-	{
-		struct xfrm_encap_tmpl *tmpl;
-
-		tmpl = netlink_reserve(hdr, sizeof(request), XFRMA_ENCAP, sizeof(*tmpl));
-		if (!tmpl)
-		{
-			goto failed;
-		}
-		tmpl->encap_type = UDP_ENCAP_ESPINUDP;
-		tmpl->encap_sport = htons(src->get_port(src));
-		tmpl->encap_dport = htons(dst->get_port(dst));
-		memset(&tmpl->encap_oa, 0, sizeof (xfrm_address_t));
-		/* encap_oa could probably be derived from the
-		 * traffic selectors [rfc4306, p39]. In the netlink kernel
-		 * implementation pluto does the same as we do here but it uses
-		 * encap_oa in the pfkey implementation.
-		 * BUT as /usr/src/linux/net/key/af_key.c indicates the kernel ignores
-		 * it anyway
-		 *   -> does that mean that NAT-T encap doesn't work in transport mode?
-		 * No. The reason the kernel ignores NAT-OA is that it recomputes
-		 * (or, rather, just ignores) the checksum. If packets pass the IPsec
-		 * checks it marks them "checksum ok" so OA isn't needed. */
-	}
-
-	if (!add_mark(hdr, sizeof(request), mark))
-	{
-		goto failed;
-	}
-
-	if (tfc && protocol == IPPROTO_ESP && mode == MODE_TUNNEL)
-	{	/* the kernel supports TFC padding only for tunnel mode ESP SAs */
-		u_int32_t *tfcpad;
-
-		tfcpad = netlink_reserve(hdr, sizeof(request), XFRMA_TFCPAD,
-								 sizeof(*tfcpad));
-		if (!tfcpad)
-		{
-			goto failed;
-		}
-		*tfcpad = tfc;
-	}
-
-	if (protocol != IPPROTO_COMP)
-	{
-		if (replay_window != 0 && (esn || replay_window > 32))
-		{
-			/* for ESN or larger replay windows we need the new
-			 * XFRMA_REPLAY_ESN_VAL attribute to configure a bitmap */
-			struct xfrm_replay_state_esn *replay;
-			u_int32_t bmp_size;
-
-			bmp_size = round_up(replay_window, sizeof(u_int32_t) * 8) / 8;
-			replay = netlink_reserve(hdr, sizeof(request), XFRMA_REPLAY_ESN_VAL,
-									 sizeof(*replay) + bmp_size);
-			if (!replay)
-			{
-				goto failed;
-			}
-			/* bmp_len contains number uf __u32's */
-			replay->bmp_len = bmp_size / sizeof(u_int32_t);
-			replay->replay_window = replay_window;
-			DBG2(DBG_KNL, "  using replay window of %u packets", replay_window);
-
-			if (esn)
-			{
-				DBG2(DBG_KNL, "  using extended sequence numbers (ESN)");
-				sa->flags |= XFRM_STATE_ESN;
-			}
-		}
-		else
-		{
-			DBG2(DBG_KNL, "  using replay window of %u packets", replay_window);
-			sa->replay_window = replay_window;
-		}
-	}
-
-	if (this->socket_xfrm->send_ack(this->socket_xfrm, hdr) != SUCCESS)
-	{
-		if (mark.value)
-		{
-			DBG1(DBG_KNL, "unable to add SAD entry with SPI %.8x  "
-						  "(mark %u/0x%08x)", ntohl(spi), mark.value, mark.mask);
-		}
-		else
-		{
-			DBG1(DBG_KNL, "unable to add SAD entry with SPI %.8x", ntohl(spi));
-		}
-		goto failed;
-	}
-
-	status = SUCCESS;
-
-failed:
-	memwipe(&request, sizeof(request));
-	return status;
-}
-
-/**
- * Get the ESN replay state (i.e. sequence numbers) of an SA.
- *
- * Allocates into one the replay state structure we get from the kernel.
- */
-static void get_replay_state(private_kernel_netlink_ipsec_t *this,
-							 u_int32_t spi, u_int8_t protocol,
-							 host_t *dst, mark_t mark,
-							 struct xfrm_replay_state_esn **replay_esn,
-							 u_int32_t *replay_esn_len,
-							 struct xfrm_replay_state **replay,
-							 struct xfrm_lifetime_cur **lifetime)
-{
-	netlink_buf_t request;
-	struct nlmsghdr *hdr, *out = NULL;
-	struct xfrm_aevent_id *out_aevent = NULL, *aevent_id;
-	size_t len;
-	struct rtattr *rta;
-	size_t rtasize;
-
-	memset(&request, 0, sizeof(request));
-
-	DBG2(DBG_KNL, "querying replay state from SAD entry with SPI %.8x",
-				   ntohl(spi));
-
-	hdr = &request.hdr;
-	hdr->nlmsg_flags = NLM_F_REQUEST;
-	hdr->nlmsg_type = XFRM_MSG_GETAE;
-	hdr->nlmsg_len = NLMSG_LENGTH(sizeof(struct xfrm_aevent_id));
-
-	aevent_id = NLMSG_DATA(hdr);
-	aevent_id->flags = XFRM_AE_RVAL;
-
-	host2xfrm(dst, &aevent_id->sa_id.daddr);
-	aevent_id->sa_id.spi = spi;
-	aevent_id->sa_id.proto = protocol;
-	aevent_id->sa_id.family = dst->get_family(dst);
-
-	if (!add_mark(hdr, sizeof(request), mark))
-	{
-		return;
-	}
-
-	if (this->socket_xfrm->send(this->socket_xfrm, hdr, &out, &len) == SUCCESS)
-	{
-		hdr = out;
-		while (NLMSG_OK(hdr, len))
-		{
-			switch (hdr->nlmsg_type)
-			{
-				case XFRM_MSG_NEWAE:
-				{
-					out_aevent = NLMSG_DATA(hdr);
-					break;
-				}
-				case NLMSG_ERROR:
-				{
-					struct nlmsgerr *err = NLMSG_DATA(hdr);
-					DBG1(DBG_KNL, "querying replay state from SAD entry "
-								  "failed: %s (%d)", strerror(-err->error),
-								  -err->error);
-					break;
-				}
-				default:
-					hdr = NLMSG_NEXT(hdr, len);
-					continue;
-				case NLMSG_DONE:
-					break;
-			}
-			break;
-		}
-	}
-
-	if (out_aevent)
-	{
-		rta = XFRM_RTA(out, struct xfrm_aevent_id);
-		rtasize = XFRM_PAYLOAD(out, struct xfrm_aevent_id);
-		while (RTA_OK(rta, rtasize))
-		{
-			if (rta->rta_type == XFRMA_LTIME_VAL &&
-				RTA_PAYLOAD(rta) == sizeof(**lifetime))
-			{
-				free(*lifetime);
-				*lifetime = malloc(RTA_PAYLOAD(rta));
-				memcpy(*lifetime, RTA_DATA(rta), RTA_PAYLOAD(rta));
-			}
-			if (rta->rta_type == XFRMA_REPLAY_VAL &&
-				RTA_PAYLOAD(rta) == sizeof(**replay))
-			{
-				free(*replay);
-				*replay = malloc(RTA_PAYLOAD(rta));
-				memcpy(*replay, RTA_DATA(rta), RTA_PAYLOAD(rta));
-			}
-			if (rta->rta_type == XFRMA_REPLAY_ESN_VAL &&
-				RTA_PAYLOAD(rta) >= sizeof(**replay_esn))
-			{
-				free(*replay_esn);
-				*replay_esn = malloc(RTA_PAYLOAD(rta));
-				*replay_esn_len = RTA_PAYLOAD(rta);
-				memcpy(*replay_esn, RTA_DATA(rta), RTA_PAYLOAD(rta));
-			}
-			rta = RTA_NEXT(rta, rtasize);
-		}
-	}
-	free(out);
-}
-
-METHOD(kernel_ipsec_t, query_sa, status_t,
-	private_kernel_netlink_ipsec_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)
-{
-	netlink_buf_t request;
-	struct nlmsghdr *out = NULL, *hdr;
-	struct xfrm_usersa_id *sa_id;
-	struct xfrm_usersa_info *sa = NULL;
-	status_t status = FAILED;
-	size_t len;
-
-	memset(&request, 0, sizeof(request));
-
-	DBG2(DBG_KNL, "querying SAD entry with SPI %.8x  (mark %u/0x%08x)",
-				   ntohl(spi), mark.value, mark.mask);
-
-	hdr = &request.hdr;
-	hdr->nlmsg_flags = NLM_F_REQUEST;
-	hdr->nlmsg_type = XFRM_MSG_GETSA;
-	hdr->nlmsg_len = NLMSG_LENGTH(sizeof(struct xfrm_usersa_id));
-
-	sa_id = NLMSG_DATA(hdr);
-	host2xfrm(dst, &sa_id->daddr);
-	sa_id->spi = spi;
-	sa_id->proto = protocol;
-	sa_id->family = dst->get_family(dst);
-
-	if (!add_mark(hdr, sizeof(request), mark))
-	{
-		return FAILED;
-	}
-
-	if (this->socket_xfrm->send(this->socket_xfrm, hdr, &out, &len) == SUCCESS)
-	{
-		hdr = out;
-		while (NLMSG_OK(hdr, len))
-		{
-			switch (hdr->nlmsg_type)
-			{
-				case XFRM_MSG_NEWSA:
-				{
-					sa = NLMSG_DATA(hdr);
-					break;
-				}
-				case NLMSG_ERROR:
-				{
-					struct nlmsgerr *err = NLMSG_DATA(hdr);
-
-					if (mark.value)
-					{
-						DBG1(DBG_KNL, "querying SAD entry with SPI %.8x  "
-									  "(mark %u/0x%08x) failed: %s (%d)",
-									   ntohl(spi), mark.value, mark.mask,
-									   strerror(-err->error), -err->error);
-					}
-					else
-					{
-						DBG1(DBG_KNL, "querying SAD entry with SPI %.8x "
-									  "failed: %s (%d)", ntohl(spi),
-									   strerror(-err->error), -err->error);
-					}
-					break;
-				}
-				default:
-					hdr = NLMSG_NEXT(hdr, len);
-					continue;
-				case NLMSG_DONE:
-					break;
-			}
-			break;
-		}
-	}
-
-	if (sa == NULL)
-	{
-		DBG2(DBG_KNL, "unable to query SAD entry with SPI %.8x", ntohl(spi));
-	}
-	else
-	{
-		if (bytes)
-		{
-			*bytes = sa->curlft.bytes;
-		}
-		if (packets)
-		{
-			*packets = sa->curlft.packets;
-		}
-		if (time)
-		{	/* curlft contains an "use" time, but that contains a timestamp
-			 * of the first use, not the last. Last use time must be queried
-			 * on the policy on Linux */
-			*time = 0;
-		}
-		status = SUCCESS;
-	}
-	memwipe(out, len);
-	free(out);
-	return status;
-}
-
-METHOD(kernel_ipsec_t, del_sa, status_t,
-	private_kernel_netlink_ipsec_t *this, host_t *src, host_t *dst,
-	u_int32_t spi, u_int8_t protocol, u_int16_t cpi, mark_t mark)
-{
-	netlink_buf_t request;
-	struct nlmsghdr *hdr;
-	struct xfrm_usersa_id *sa_id;
-
-	/* if IPComp was used, we first delete the additional IPComp SA */
-	if (cpi)
-	{
-		del_sa(this, src, dst, htonl(ntohs(cpi)), IPPROTO_COMP, 0, mark);
-	}
-
-	memset(&request, 0, sizeof(request));
-
-	DBG2(DBG_KNL, "deleting SAD entry with SPI %.8x  (mark %u/0x%08x)",
-				   ntohl(spi), mark.value, mark.mask);
-
-	hdr = &request.hdr;
-	hdr->nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK;
-	hdr->nlmsg_type = XFRM_MSG_DELSA;
-	hdr->nlmsg_len = NLMSG_LENGTH(sizeof(struct xfrm_usersa_id));
-
-	sa_id = NLMSG_DATA(hdr);
-	host2xfrm(dst, &sa_id->daddr);
-	sa_id->spi = spi;
-	sa_id->proto = protocol;
-	sa_id->family = dst->get_family(dst);
-
-	if (!add_mark(hdr, sizeof(request), mark))
-	{
-		return FAILED;
-	}
-
-	switch (this->socket_xfrm->send_ack(this->socket_xfrm, hdr))
-	{
-		case SUCCESS:
-			DBG2(DBG_KNL, "deleted SAD entry with SPI %.8x (mark %u/0x%08x)",
-				 ntohl(spi), mark.value, mark.mask);
-			return SUCCESS;
-		case NOT_FOUND:
-			return NOT_FOUND;
-		default:
-			if (mark.value)
-			{
-				DBG1(DBG_KNL, "unable to delete SAD entry with SPI %.8x "
-					 "(mark %u/0x%08x)", ntohl(spi), mark.value, mark.mask);
-			}
-			else
-			{
-				DBG1(DBG_KNL, "unable to delete SAD entry with SPI %.8x",
-					 ntohl(spi));
-			}
-			return FAILED;
-	}
-}
-
-METHOD(kernel_ipsec_t, update_sa, status_t,
-	private_kernel_netlink_ipsec_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 old_encap, bool new_encap, mark_t mark)
-{
-	netlink_buf_t request;
-	struct nlmsghdr *hdr, *out = NULL;
-	struct xfrm_usersa_id *sa_id;
-	struct xfrm_usersa_info *out_sa = NULL, *sa;
-	size_t len;
-	struct rtattr *rta;
-	size_t rtasize;
-	struct xfrm_encap_tmpl* tmpl = NULL;
-	struct xfrm_replay_state *replay = NULL;
-	struct xfrm_replay_state_esn *replay_esn = NULL;
-	struct xfrm_lifetime_cur *lifetime = NULL;
-	u_int32_t replay_esn_len = 0;
-	status_t status = FAILED;
-
-	/* if IPComp is used, we first update the IPComp SA */
-	if (cpi)
-	{
-		update_sa(this, htonl(ntohs(cpi)), IPPROTO_COMP, 0,
-				  src, dst, new_src, new_dst, FALSE, FALSE, mark);
-	}
-
-	memset(&request, 0, sizeof(request));
-
-	DBG2(DBG_KNL, "querying SAD entry with SPI %.8x for update", ntohl(spi));
-
-	/* query the existing SA first */
-	hdr = &request.hdr;
-	hdr->nlmsg_flags = NLM_F_REQUEST;
-	hdr->nlmsg_type = XFRM_MSG_GETSA;
-	hdr->nlmsg_len = NLMSG_LENGTH(sizeof(struct xfrm_usersa_id));
-
-	sa_id = NLMSG_DATA(hdr);
-	host2xfrm(dst, &sa_id->daddr);
-	sa_id->spi = spi;
-	sa_id->proto = protocol;
-	sa_id->family = dst->get_family(dst);
-
-	if (!add_mark(hdr, sizeof(request), mark))
-	{
-		return FAILED;
-	}
-
-	if (this->socket_xfrm->send(this->socket_xfrm, hdr, &out, &len) == SUCCESS)
-	{
-		hdr = out;
-		while (NLMSG_OK(hdr, len))
-		{
-			switch (hdr->nlmsg_type)
-			{
-				case XFRM_MSG_NEWSA:
-				{
-					out_sa = NLMSG_DATA(hdr);
-					break;
-				}
-				case NLMSG_ERROR:
-				{
-					struct nlmsgerr *err = NLMSG_DATA(hdr);
-					DBG1(DBG_KNL, "querying SAD entry failed: %s (%d)",
-						 strerror(-err->error), -err->error);
-					break;
-				}
-				default:
-					hdr = NLMSG_NEXT(hdr, len);
-					continue;
-				case NLMSG_DONE:
-					break;
-			}
-			break;
-		}
-	}
-	if (out_sa == NULL)
-	{
-		DBG1(DBG_KNL, "unable to update SAD entry with SPI %.8x", ntohl(spi));
-		goto failed;
-	}
-
-	get_replay_state(this, spi, protocol, dst, mark, &replay_esn,
-					 &replay_esn_len, &replay, &lifetime);
-
-	/* delete the old SA (without affecting the IPComp SA) */
-	if (del_sa(this, src, dst, spi, protocol, 0, mark) != SUCCESS)
-	{
-		DBG1(DBG_KNL, "unable to delete old SAD entry with SPI %.8x",
-					   ntohl(spi));
-		goto failed;
-	}
-
-	DBG2(DBG_KNL, "updating SAD entry with SPI %.8x from %#H..%#H to %#H..%#H",
-				   ntohl(spi), src, dst, new_src, new_dst);
-	/* copy over the SA from out to request */
-	hdr = &request.hdr;
-	hdr->nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK;
-	hdr->nlmsg_type = XFRM_MSG_NEWSA;
-	hdr->nlmsg_len = NLMSG_LENGTH(sizeof(struct xfrm_usersa_info));
-	sa = NLMSG_DATA(hdr);
-	memcpy(sa, NLMSG_DATA(out), sizeof(struct xfrm_usersa_info));
-	sa->family = new_dst->get_family(new_dst);
-
-	if (!src->ip_equals(src, new_src))
-	{
-		host2xfrm(new_src, &sa->saddr);
-	}
-	if (!dst->ip_equals(dst, new_dst))
-	{
-		host2xfrm(new_dst, &sa->id.daddr);
-	}
-
-	rta = XFRM_RTA(out, struct xfrm_usersa_info);
-	rtasize = XFRM_PAYLOAD(out, struct xfrm_usersa_info);
-	while (RTA_OK(rta, rtasize))
-	{
-		/* copy all attributes, but not XFRMA_ENCAP if we are disabling it */
-		if (rta->rta_type != XFRMA_ENCAP || new_encap)
-		{
-			if (rta->rta_type == XFRMA_ENCAP)
-			{	/* update encap tmpl */
-				tmpl = RTA_DATA(rta);
-				tmpl->encap_sport = ntohs(new_src->get_port(new_src));
-				tmpl->encap_dport = ntohs(new_dst->get_port(new_dst));
-			}
-			netlink_add_attribute(hdr, rta->rta_type,
-								  chunk_create(RTA_DATA(rta), RTA_PAYLOAD(rta)),
-								  sizeof(request));
-		}
-		rta = RTA_NEXT(rta, rtasize);
-	}
-
-	if (tmpl == NULL && new_encap)
-	{	/* add tmpl if we are enabling it */
-		tmpl = netlink_reserve(hdr, sizeof(request), XFRMA_ENCAP, sizeof(*tmpl));
-		if (!tmpl)
-		{
-			goto failed;
-		}
-		tmpl->encap_type = UDP_ENCAP_ESPINUDP;
-		tmpl->encap_sport = ntohs(new_src->get_port(new_src));
-		tmpl->encap_dport = ntohs(new_dst->get_port(new_dst));
-		memset(&tmpl->encap_oa, 0, sizeof (xfrm_address_t));
-	}
-
-	if (replay_esn)
-	{
-		struct xfrm_replay_state_esn *state;
-
-		state = netlink_reserve(hdr, sizeof(request), XFRMA_REPLAY_ESN_VAL,
-								replay_esn_len);
-		if (!state)
-		{
-			goto failed;
-		}
-		memcpy(state, replay_esn, replay_esn_len);
-	}
-	else if (replay)
-	{
-		struct xfrm_replay_state *state;
-
-		state = netlink_reserve(hdr, sizeof(request), XFRMA_REPLAY_VAL,
-								sizeof(*state));
-		if (!state)
-		{
-			goto failed;
-		}
-		memcpy(state, replay, sizeof(*state));
-	}
-	else
-	{
-		DBG1(DBG_KNL, "unable to copy replay state from old SAD entry with "
-			 "SPI %.8x", ntohl(spi));
-	}
-	if (lifetime)
-	{
-		struct xfrm_lifetime_cur *state;
-
-		state = netlink_reserve(hdr, sizeof(request), XFRMA_LTIME_VAL,
-								sizeof(*state));
-		if (!state)
-		{
-			goto failed;
-		}
-		memcpy(state, lifetime, sizeof(*state));
-	}
-	else
-	{
-		DBG1(DBG_KNL, "unable to copy usage stats from old SAD entry with "
-			 "SPI %.8x", ntohl(spi));
-	}
-
-	if (this->socket_xfrm->send_ack(this->socket_xfrm, hdr) != SUCCESS)
-	{
-		DBG1(DBG_KNL, "unable to update SAD entry with SPI %.8x", ntohl(spi));
-		goto failed;
-	}
-
-	status = SUCCESS;
-failed:
-	free(replay);
-	free(replay_esn);
-	free(lifetime);
-	memwipe(out, len);
-	memwipe(&request, sizeof(request));
-	free(out);
-
-	return status;
-}
-
-METHOD(kernel_ipsec_t, flush_sas, status_t,
-	private_kernel_netlink_ipsec_t *this)
-{
-	netlink_buf_t request;
-	struct nlmsghdr *hdr;
-	struct xfrm_usersa_flush *flush;
-	struct {
-		u_int8_t proto;
-		char *name;
-	} protos[] = {
-		{ IPPROTO_AH, "AH" },
-		{ IPPROTO_ESP, "ESP" },
-		{ IPPROTO_COMP, "IPComp" },
-	};
-	int i;
-
-	memset(&request, 0, sizeof(request));
-
-	hdr = &request.hdr;
-	hdr->nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK;
-	hdr->nlmsg_type = XFRM_MSG_FLUSHSA;
-	hdr->nlmsg_len = NLMSG_LENGTH(sizeof(struct xfrm_usersa_flush));
-
-	flush = NLMSG_DATA(hdr);
-
-	for (i = 0; i < countof(protos); i++)
-	{
-		DBG2(DBG_KNL, "flushing all %s SAD entries", protos[i].name);
-
-		flush->proto = protos[i].proto;
-
-		if (this->socket_xfrm->send_ack(this->socket_xfrm, hdr) != SUCCESS)
-		{
-			DBG1(DBG_KNL, "unable to flush %s SAD entries", protos[i].name);
-			return FAILED;
-		}
-	}
-	return SUCCESS;
-}
-
-/**
- * Add or update a policy in the kernel.
- *
- * Note: The mutex has to be locked when entering this function
- * and is unlocked here in any case.
- */
-static status_t add_policy_internal(private_kernel_netlink_ipsec_t *this,
-	policy_entry_t *policy, policy_sa_t *mapping, bool update)
-{
-	netlink_buf_t request;
-	policy_entry_t clone;
-	ipsec_sa_t *ipsec = mapping->sa;
-	struct xfrm_userpolicy_info *policy_info;
-	struct nlmsghdr *hdr;
-	status_t status;
-	int i;
-
-	/* clone the policy so we are able to check it out again later */
-	memcpy(&clone, policy, sizeof(policy_entry_t));
-
-	memset(&request, 0, sizeof(request));
-	hdr = &request.hdr;
-	hdr->nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK;
-	hdr->nlmsg_type = update ? XFRM_MSG_UPDPOLICY : XFRM_MSG_NEWPOLICY;
-	hdr->nlmsg_len = NLMSG_LENGTH(sizeof(struct xfrm_userpolicy_info));
-
-	policy_info = NLMSG_DATA(hdr);
-	policy_info->sel = policy->sel;
-	policy_info->dir = policy->direction;
-
-	/* calculate priority based on selector size, small size = high prio */
-	policy_info->priority = mapping->priority;
-	policy_info->action = mapping->type != POLICY_DROP ? XFRM_POLICY_ALLOW
-													   : XFRM_POLICY_BLOCK;
-	policy_info->share = XFRM_SHARE_ANY;
-
-	/* policies don't expire */
-	policy_info->lft.soft_byte_limit = XFRM_INF;
-	policy_info->lft.soft_packet_limit = XFRM_INF;
-	policy_info->lft.hard_byte_limit = XFRM_INF;
-	policy_info->lft.hard_packet_limit = XFRM_INF;
-	policy_info->lft.soft_add_expires_seconds = 0;
-	policy_info->lft.hard_add_expires_seconds = 0;
-	policy_info->lft.soft_use_expires_seconds = 0;
-	policy_info->lft.hard_use_expires_seconds = 0;
-
-	if (mapping->type == POLICY_IPSEC)
-	{
-		struct xfrm_user_tmpl *tmpl;
-		struct {
-			u_int8_t proto;
-			bool use;
-		} protos[] = {
-			{ IPPROTO_COMP, ipsec->cfg.ipcomp.transform != IPCOMP_NONE },
-			{ IPPROTO_ESP, ipsec->cfg.esp.use },
-			{ IPPROTO_AH, ipsec->cfg.ah.use },
-		};
-		ipsec_mode_t proto_mode = ipsec->cfg.mode;
-		int count = 0;
-
-		for (i = 0; i < countof(protos); i++)
-		{
-			if (protos[i].use)
-			{
-				count++;
-			}
-		}
-		tmpl = netlink_reserve(hdr, sizeof(request), XFRMA_TMPL,
-							   count * sizeof(*tmpl));
-		if (!tmpl)
-		{
-			this->mutex->unlock(this->mutex);
-			return FAILED;
-		}
-
-		for (i = 0; i < countof(protos); i++)
-		{
-			if (!protos[i].use)
-			{
-				continue;
-			}
-			tmpl->reqid = ipsec->cfg.reqid;
-			tmpl->id.proto = protos[i].proto;
-			tmpl->aalgos = tmpl->ealgos = tmpl->calgos = ~0;
-			tmpl->mode = mode2kernel(proto_mode);
-			tmpl->optional = protos[i].proto == IPPROTO_COMP &&
-							 policy->direction != POLICY_OUT;
-			tmpl->family = ipsec->src->get_family(ipsec->src);
-
-			if (proto_mode == MODE_TUNNEL || proto_mode == MODE_BEET)
-			{	/* only for tunnel mode */
-				host2xfrm(ipsec->src, &tmpl->saddr);
-				host2xfrm(ipsec->dst, &tmpl->id.daddr);
-			}
-
-			tmpl++;
-
-			/* use transport mode for other SAs */
-			proto_mode = MODE_TRANSPORT;
-		}
-	}
-
-	if (!add_mark(hdr, sizeof(request), ipsec->mark))
-	{
-		this->mutex->unlock(this->mutex);
-		return FAILED;
-	}
-	this->mutex->unlock(this->mutex);
-
-	status = this->socket_xfrm->send_ack(this->socket_xfrm, hdr);
-	if (status == ALREADY_DONE && !update)
-	{
-		DBG1(DBG_KNL, "policy already exists, try to update it");
-		hdr->nlmsg_type = XFRM_MSG_UPDPOLICY;
-		status = this->socket_xfrm->send_ack(this->socket_xfrm, hdr);
-	}
-	if (status != SUCCESS)
-	{
-		return FAILED;
-	}
-
-	/* find the policy again */
-	this->mutex->lock(this->mutex);
-	policy = this->policies->get(this->policies, &clone);
-	if (!policy ||
-		 policy->used_by->find_first(policy->used_by,
-									 NULL, (void**)&mapping) != SUCCESS)
-	{	/* policy or mapping is already gone, ignore */
-		this->mutex->unlock(this->mutex);
-		return SUCCESS;
-	}
-
-	/* install a route, if:
-	 * - this is a forward policy (to just get one for each child)
-	 * - we are in tunnel/BEET mode or install a bypass policy
-	 * - routing is not disabled via strongswan.conf
-	 */
-	if (policy->direction == POLICY_FWD && this->install_routes &&
-		(mapping->type != POLICY_IPSEC || ipsec->cfg.mode != MODE_TRANSPORT))
-	{
-		policy_sa_fwd_t *fwd = (policy_sa_fwd_t*)mapping;
-		route_entry_t *route;
-		host_t *iface;
-
-		INIT(route,
-			.prefixlen = policy->sel.prefixlen_s,
-		);
-
-		if (hydra->kernel_interface->get_address_by_ts(hydra->kernel_interface,
-				fwd->dst_ts, &route->src_ip, NULL) == SUCCESS)
-		{
-			/* get the nexthop to src (src as we are in POLICY_FWD) */
-			if (!ipsec->src->is_anyaddr(ipsec->src))
-			{
-				route->gateway = hydra->kernel_interface->get_nexthop(
-											hydra->kernel_interface, ipsec->src,
-											-1, ipsec->dst);
-			}
-			else
-			{	/* for shunt policies */
-				iface = xfrm2host(policy->sel.family, &policy->sel.saddr, 0);
-				route->gateway = hydra->kernel_interface->get_nexthop(
-										hydra->kernel_interface, iface,
-										policy->sel.prefixlen_s, route->src_ip);
-				iface->destroy(iface);
-			}
-			route->dst_net = chunk_alloc(policy->sel.family == AF_INET ? 4 : 16);
-			memcpy(route->dst_net.ptr, &policy->sel.saddr, route->dst_net.len);
-
-			/* get the interface to install the route for. If we have a local
-			 * address, use it. Otherwise (for shunt policies) use the
-			 * routes source address. */
-			iface = ipsec->dst;
-			if (iface->is_anyaddr(iface))
-			{
-				iface = route->src_ip;
-			}
-			/* install route via outgoing interface */
-			if (!hydra->kernel_interface->get_interface(hydra->kernel_interface,
-														iface, &route->if_name))
-			{
-				this->mutex->unlock(this->mutex);
-				route_entry_destroy(route);
-				return SUCCESS;
-			}
-
-			if (policy->route)
-			{
-				route_entry_t *old = policy->route;
-				if (route_entry_equals(old, route))
-				{
-					this->mutex->unlock(this->mutex);
-					route_entry_destroy(route);
-					return SUCCESS;
-				}
-				/* uninstall previously installed route */
-				if (hydra->kernel_interface->del_route(hydra->kernel_interface,
-						old->dst_net, old->prefixlen, old->gateway,
-						old->src_ip, old->if_name) != SUCCESS)
-				{
-					DBG1(DBG_KNL, "error uninstalling route installed with "
-								  "policy %R === %R %N", fwd->src_ts,
-								   fwd->dst_ts, policy_dir_names,
-								   policy->direction);
-				}
-				route_entry_destroy(old);
-				policy->route = NULL;
-			}
-
-			DBG2(DBG_KNL, "installing route: %R via %H src %H dev %s",
-				 fwd->src_ts, route->gateway, route->src_ip, route->if_name);
-			switch (hydra->kernel_interface->add_route(
-								hydra->kernel_interface, route->dst_net,
-								route->prefixlen, route->gateway,
-								route->src_ip, route->if_name))
-			{
-				default:
-					DBG1(DBG_KNL, "unable to install source route for %H",
-								   route->src_ip);
-					/* FALL */
-				case ALREADY_DONE:
-					/* route exists, do not uninstall */
-					route_entry_destroy(route);
-					break;
-				case SUCCESS:
-					/* cache the installed route */
-					policy->route = route;
-					break;
-			}
-		}
-		else
-		{
-			free(route);
-		}
-	}
-	this->mutex->unlock(this->mutex);
-	return SUCCESS;
-}
-
-METHOD(kernel_ipsec_t, add_policy, status_t,
-	private_kernel_netlink_ipsec_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)
-{
-	policy_entry_t *policy, *current;
-	policy_sa_t *assigned_sa, *current_sa;
-	enumerator_t *enumerator;
-	bool found = FALSE, update = TRUE;
-
-	/* create a policy */
-	INIT(policy,
-		.sel = ts2selector(src_ts, dst_ts),
-		.mark = mark.value & mark.mask,
-		.direction = direction,
-		.reqid = sa->reqid,
-	);
-
-	/* find the policy, which matches EXACTLY */
-	this->mutex->lock(this->mutex);
-	current = this->policies->get(this->policies, policy);
-	if (current)
-	{
-		if (current->reqid && sa->reqid && current->reqid != sa->reqid)
-		{
-			DBG1(DBG_CFG, "unable to install policy %R === %R %N (mark "
-				 "%u/0x%08x) for reqid %u, the same policy for reqid %u exists",
-				 src_ts, dst_ts, policy_dir_names, direction,
-				 mark.value, mark.mask, sa->reqid, current->reqid);
-			policy_entry_destroy(this, policy);
-			this->mutex->unlock(this->mutex);
-			return INVALID_STATE;
-		}
-		/* use existing policy */
-		DBG2(DBG_KNL, "policy %R === %R %N  (mark %u/0x%08x) "
-					  "already exists, increasing refcount",
-					   src_ts, dst_ts, policy_dir_names, direction,
-					   mark.value, mark.mask);
-		policy_entry_destroy(this, policy);
-		policy = current;
-		found = TRUE;
-	}
-	else
-	{	/* use the new one, if we have no such policy */
-		policy->used_by = linked_list_create();
-		this->policies->put(this->policies, policy, policy);
-	}
-
-	/* cache the assigned IPsec SA */
-	assigned_sa = policy_sa_create(this, direction, type, src, dst, src_ts,
-								   dst_ts, mark, sa);
-	assigned_sa->priority = get_priority(policy, priority);
-
-	/* insert the SA according to its priority */
-	enumerator = policy->used_by->create_enumerator(policy->used_by);
-	while (enumerator->enumerate(enumerator, (void**)&current_sa))
-	{
-		if (current_sa->priority >= assigned_sa->priority)
-		{
-			break;
-		}
-		update = FALSE;
-	}
-	policy->used_by->insert_before(policy->used_by, enumerator,
-								   assigned_sa);
-	enumerator->destroy(enumerator);
-
-	if (!update)
-	{	/* we don't update the policy if the priority is lower than that of
-		 * the currently installed one */
-		this->mutex->unlock(this->mutex);
-		return SUCCESS;
-	}
-
-	if (this->policy_update)
-	{
-		found = TRUE;
-	}
-
-	DBG2(DBG_KNL, "%s policy %R === %R %N  (mark %u/0x%08x)",
-				   found ? "updating" : "adding", src_ts, dst_ts,
-				   policy_dir_names, direction, mark.value, mark.mask);
-
-	if (add_policy_internal(this, policy, assigned_sa, found) != SUCCESS)
-	{
-		DBG1(DBG_KNL, "unable to %s policy %R === %R %N",
-					   found ? "update" : "add", src_ts, dst_ts,
-					   policy_dir_names, direction);
-		return FAILED;
-	}
-	return SUCCESS;
-}
-
-METHOD(kernel_ipsec_t, query_policy, status_t,
-	private_kernel_netlink_ipsec_t *this, traffic_selector_t *src_ts,
-	traffic_selector_t *dst_ts, policy_dir_t direction, mark_t mark,
-	time_t *use_time)
-{
-	netlink_buf_t request;
-	struct nlmsghdr *out = NULL, *hdr;
-	struct xfrm_userpolicy_id *policy_id;
-	struct xfrm_userpolicy_info *policy = NULL;
-	size_t len;
-
-	memset(&request, 0, sizeof(request));
-
-	DBG2(DBG_KNL, "querying policy %R === %R %N  (mark %u/0x%08x)",
-				   src_ts, dst_ts, policy_dir_names, direction,
-				   mark.value, mark.mask);
-
-	hdr = &request.hdr;
-	hdr->nlmsg_flags = NLM_F_REQUEST;
-	hdr->nlmsg_type = XFRM_MSG_GETPOLICY;
-	hdr->nlmsg_len = NLMSG_LENGTH(sizeof(struct xfrm_userpolicy_id));
-
-	policy_id = NLMSG_DATA(hdr);
-	policy_id->sel = ts2selector(src_ts, dst_ts);
-	policy_id->dir = direction;
-
-	if (!add_mark(hdr, sizeof(request), mark))
-	{
-		return FAILED;
-	}
-
-	if (this->socket_xfrm->send(this->socket_xfrm, hdr, &out, &len) == SUCCESS)
-	{
-		hdr = out;
-		while (NLMSG_OK(hdr, len))
-		{
-			switch (hdr->nlmsg_type)
-			{
-				case XFRM_MSG_NEWPOLICY:
-				{
-					policy = NLMSG_DATA(hdr);
-					break;
-				}
-				case NLMSG_ERROR:
-				{
-					struct nlmsgerr *err = NLMSG_DATA(hdr);
-					DBG1(DBG_KNL, "querying policy failed: %s (%d)",
-								   strerror(-err->error), -err->error);
-					break;
-				}
-				default:
-					hdr = NLMSG_NEXT(hdr, len);
-					continue;
-				case NLMSG_DONE:
-					break;
-			}
-			break;
-		}
-	}
-
-	if (policy == NULL)
-	{
-		DBG2(DBG_KNL, "unable to query policy %R === %R %N", src_ts, dst_ts,
-					   policy_dir_names, direction);
-		free(out);
-		return FAILED;
-	}
-
-	if (policy->curlft.use_time)
-	{
-		/* we need the monotonic time, but the kernel returns system time. */
-		*use_time = time_monotonic(NULL) - (time(NULL) - policy->curlft.use_time);
-	}
-	else
-	{
-		*use_time = 0;
-	}
-
-	free(out);
-	return SUCCESS;
-}
-
-METHOD(kernel_ipsec_t, del_policy, status_t,
-	private_kernel_netlink_ipsec_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 prio)
-{
-	policy_entry_t *current, policy;
-	enumerator_t *enumerator;
-	policy_sa_t *mapping;
-	netlink_buf_t request;
-	struct nlmsghdr *hdr;
-	struct xfrm_userpolicy_id *policy_id;
-	bool is_installed = TRUE;
-	u_int32_t priority;
-	ipsec_sa_t assigned_sa = {
-		.src = src,
-		.dst = dst,
-		.mark = mark,
-		.cfg = *sa,
-	};
-
-	DBG2(DBG_KNL, "deleting policy %R === %R %N  (mark %u/0x%08x)",
-				   src_ts, dst_ts, policy_dir_names, direction,
-				   mark.value, mark.mask);
-
-	/* create a policy */
-	memset(&policy, 0, sizeof(policy_entry_t));
-	policy.sel = ts2selector(src_ts, dst_ts);
-	policy.mark = mark.value & mark.mask;
-	policy.direction = direction;
-
-	/* find the policy */
-	this->mutex->lock(this->mutex);
-	current = this->policies->get(this->policies, &policy);
-	if (!current)
-	{
-		if (mark.value)
-		{
-			DBG1(DBG_KNL, "deleting policy %R === %R %N  (mark %u/0x%08x) "
-						  "failed, not found", src_ts, dst_ts, policy_dir_names,
-						   direction, mark.value, mark.mask);
-		}
-		else
-		{
-			DBG1(DBG_KNL, "deleting policy %R === %R %N failed, not found",
-						   src_ts, dst_ts, policy_dir_names, direction);
-		}
-		this->mutex->unlock(this->mutex);
-		return NOT_FOUND;
-	}
-
-	/* remove mapping to SA by reqid and priority */
-	priority = get_priority(current, prio);
-	enumerator = current->used_by->create_enumerator(current->used_by);
-	while (enumerator->enumerate(enumerator, (void**)&mapping))
-	{
-		if (priority == mapping->priority && type == mapping->type &&
-			ipsec_sa_equals(mapping->sa, &assigned_sa))
-		{
-			current->used_by->remove_at(current->used_by, enumerator);
-			policy_sa_destroy(mapping, &direction, this);
-			break;
-		}
-		is_installed = FALSE;
-	}
-	enumerator->destroy(enumerator);
-
-	if (current->used_by->get_count(current->used_by) > 0)
-	{	/* policy is used by more SAs, keep in kernel */
-		DBG2(DBG_KNL, "policy still used by another CHILD_SA, not removed");
-		if (!is_installed)
-		{	/* no need to update as the policy was not installed for this SA */
-			this->mutex->unlock(this->mutex);
-			return SUCCESS;
-		}
-
-		DBG2(DBG_KNL, "updating policy %R === %R %N  (mark %u/0x%08x)",
-					   src_ts, dst_ts, policy_dir_names, direction,
-					   mark.value, mark.mask);
-
-		current->used_by->get_first(current->used_by, (void**)&mapping);
-		if (add_policy_internal(this, current, mapping, TRUE) != SUCCESS)
-		{
-			DBG1(DBG_KNL, "unable to update policy %R === %R %N",
-						   src_ts, dst_ts, policy_dir_names, direction);
-			return FAILED;
-		}
-		return SUCCESS;
-	}
-
-	memset(&request, 0, sizeof(request));
-
-	hdr = &request.hdr;
-	hdr->nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK;
-	hdr->nlmsg_type = XFRM_MSG_DELPOLICY;
-	hdr->nlmsg_len = NLMSG_LENGTH(sizeof(struct xfrm_userpolicy_id));
-
-	policy_id = NLMSG_DATA(hdr);
-	policy_id->sel = current->sel;
-	policy_id->dir = direction;
-
-	if (!add_mark(hdr, sizeof(request), mark))
-	{
-		this->mutex->unlock(this->mutex);
-		return FAILED;
-	}
-
-	if (current->route)
-	{
-		route_entry_t *route = current->route;
-		if (hydra->kernel_interface->del_route(hydra->kernel_interface,
-				route->dst_net, route->prefixlen, route->gateway,
-				route->src_ip, route->if_name) != SUCCESS)
-		{
-			DBG1(DBG_KNL, "error uninstalling route installed with "
-						  "policy %R === %R %N", src_ts, dst_ts,
-						   policy_dir_names, direction);
-		}
-	}
-
-	this->policies->remove(this->policies, current);
-	policy_entry_destroy(this, current);
-	this->mutex->unlock(this->mutex);
-
-	if (this->socket_xfrm->send_ack(this->socket_xfrm, hdr) != SUCCESS)
-	{
-		if (mark.value)
-		{
-			DBG1(DBG_KNL, "unable to delete policy %R === %R %N  "
-						  "(mark %u/0x%08x)", src_ts, dst_ts, policy_dir_names,
-						   direction, mark.value, mark.mask);
-		}
-		else
-		{
-			DBG1(DBG_KNL, "unable to delete policy %R === %R %N",
-						   src_ts, dst_ts, policy_dir_names, direction);
-		}
-		return FAILED;
-	}
-	return SUCCESS;
-}
-
-METHOD(kernel_ipsec_t, flush_policies, status_t,
-	private_kernel_netlink_ipsec_t *this)
-{
-	netlink_buf_t request;
-	struct nlmsghdr *hdr;
-
-	memset(&request, 0, sizeof(request));
-
-	DBG2(DBG_KNL, "flushing all policies from SPD");
-
-	hdr = &request.hdr;
-	hdr->nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK;
-	hdr->nlmsg_type = XFRM_MSG_FLUSHPOLICY;
-	hdr->nlmsg_len = NLMSG_LENGTH(0); /* no data associated */
-
-	/* by adding an rtattr of type  XFRMA_POLICY_TYPE we could restrict this
-	 * to main or sub policies (default is main) */
-
-	if (this->socket_xfrm->send_ack(this->socket_xfrm, hdr) != SUCCESS)
-	{
-		DBG1(DBG_KNL, "unable to flush SPD entries");
-		return FAILED;
-	}
-	return SUCCESS;
-}
-
-/**
- * Bypass socket using a per-socket policy
- */
-static bool add_socket_bypass(private_kernel_netlink_ipsec_t *this,
-							  int fd, int family)
-{
-	struct xfrm_userpolicy_info policy;
-	u_int sol, ipsec_policy;
-
-	switch (family)
-	{
-		case AF_INET:
-			sol = SOL_IP;
-			ipsec_policy = IP_XFRM_POLICY;
-			break;
-		case AF_INET6:
-			sol = SOL_IPV6;
-			ipsec_policy = IPV6_XFRM_POLICY;
-			break;
-		default:
-			return FALSE;
-	}
-
-	memset(&policy, 0, sizeof(policy));
-	policy.action = XFRM_POLICY_ALLOW;
-	policy.sel.family = family;
-
-	policy.dir = XFRM_POLICY_OUT;
-	if (setsockopt(fd, sol, ipsec_policy, &policy, sizeof(policy)) < 0)
-	{
-		DBG1(DBG_KNL, "unable to set IPSEC_POLICY on socket: %s",
-					   strerror(errno));
-		return FALSE;
-	}
-	policy.dir = XFRM_POLICY_IN;
-	if (setsockopt(fd, sol, ipsec_policy, &policy, sizeof(policy)) < 0)
-	{
-		DBG1(DBG_KNL, "unable to set IPSEC_POLICY on socket: %s",
-					   strerror(errno));
-		return FALSE;
-	}
-	return TRUE;
-}
-
-/**
- * Port based IKE bypass policy
- */
-typedef struct {
-	/** address family */
-	int family;
-	/** layer 4 protocol */
-	int proto;
-	/** port number, network order */
-	u_int16_t port;
-} bypass_t;
-
-/**
- * Add or remove a bypass policy from/to kernel
- */
-static bool manage_bypass(private_kernel_netlink_ipsec_t *this,
-						  int type, policy_dir_t dir, bypass_t *bypass)
-{
-	netlink_buf_t request;
-	struct xfrm_selector *sel;
-	struct nlmsghdr *hdr;
-
-	memset(&request, 0, sizeof(request));
-	hdr = &request.hdr;
-	hdr->nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK;
-	hdr->nlmsg_type = type;
-
-	if (type == XFRM_MSG_NEWPOLICY)
-	{
-		struct xfrm_userpolicy_info *policy;
-
-		hdr->nlmsg_len = NLMSG_LENGTH(sizeof(struct xfrm_userpolicy_info));
-
-		policy = NLMSG_DATA(hdr);
-		policy->dir = dir;
-		policy->priority = 32;
-		policy->action = XFRM_POLICY_ALLOW;
-		policy->share = XFRM_SHARE_ANY;
-
-		policy->lft.soft_byte_limit = XFRM_INF;
-		policy->lft.soft_packet_limit = XFRM_INF;
-		policy->lft.hard_byte_limit = XFRM_INF;
-		policy->lft.hard_packet_limit = XFRM_INF;
-
-		sel = &policy->sel;
-	}
-	else /* XFRM_MSG_DELPOLICY */
-	{
-		struct xfrm_userpolicy_id *policy;
-
-		hdr->nlmsg_len = NLMSG_LENGTH(sizeof(struct xfrm_userpolicy_id));
-
-		policy = NLMSG_DATA(hdr);
-		policy->dir = dir;
-
-		sel = &policy->sel;
-	}
-
-	sel->family = bypass->family;
-	sel->proto = bypass->proto;
-	if (dir == POLICY_IN)
-	{
-		sel->dport = bypass->port;
-		sel->dport_mask = 0xffff;
-	}
-	else
-	{
-		sel->sport = bypass->port;
-		sel->sport_mask = 0xffff;
-	}
-	return this->socket_xfrm->send_ack(this->socket_xfrm, hdr) == SUCCESS;
-}
-
-/**
- * Bypass socket using a port-based bypass policy
- */
-static bool add_port_bypass(private_kernel_netlink_ipsec_t *this,
-							int fd, int family)
-{
-	union {
-		struct sockaddr sa;
-		struct sockaddr_in in;
-		struct sockaddr_in6 in6;
-	} saddr;
-	socklen_t len;
-	bypass_t bypass = {
-		.family = family,
-	};
-
-	len = sizeof(saddr);
-	if (getsockname(fd, &saddr.sa, &len) != 0)
-	{
-		return FALSE;
-	}
-#ifdef SO_PROTOCOL /* since 2.6.32 */
-	len = sizeof(bypass.proto);
-	if (getsockopt(fd, SOL_SOCKET, SO_PROTOCOL, &bypass.proto, &len) != 0)
-#endif
-	{	/* assume UDP if SO_PROTOCOL not supported */
-		bypass.proto = IPPROTO_UDP;
-	}
-	switch (family)
-	{
-		case AF_INET:
-			bypass.port = saddr.in.sin_port;
-			break;
-		case AF_INET6:
-			bypass.port = saddr.in6.sin6_port;
-			break;
-		default:
-			return FALSE;
-	}
-
-	if (!manage_bypass(this, XFRM_MSG_NEWPOLICY, POLICY_IN, &bypass))
-	{
-		return FALSE;
-	}
-	if (!manage_bypass(this, XFRM_MSG_NEWPOLICY, POLICY_OUT, &bypass))
-	{
-		manage_bypass(this, XFRM_MSG_DELPOLICY, POLICY_IN, &bypass);
-		return FALSE;
-	}
-	array_insert(this->bypass, ARRAY_TAIL, &bypass);
-
-	return TRUE;
-}
-
-/**
- * Remove installed port based bypass policy
- */
-static void remove_port_bypass(bypass_t *bypass, int idx,
-							   private_kernel_netlink_ipsec_t *this)
-{
-	manage_bypass(this, XFRM_MSG_DELPOLICY, POLICY_OUT, bypass);
-	manage_bypass(this, XFRM_MSG_DELPOLICY, POLICY_IN, bypass);
-}
-
-METHOD(kernel_ipsec_t, bypass_socket, bool,
-	private_kernel_netlink_ipsec_t *this, int fd, int family)
-{
-	if (lib->settings->get_bool(lib->settings,
-					"%s.plugins.kernel-netlink.port_bypass", FALSE, lib->ns))
-	{
-		return add_port_bypass(this, fd, family);
-	}
-	return add_socket_bypass(this, fd, family);
-}
-
-METHOD(kernel_ipsec_t, enable_udp_decap, bool,
-	private_kernel_netlink_ipsec_t *this, int fd, int family, u_int16_t port)
-{
-	int type = UDP_ENCAP_ESPINUDP;
-
-	if (setsockopt(fd, SOL_UDP, UDP_ENCAP, &type, sizeof(type)) < 0)
-	{
-		DBG1(DBG_KNL, "unable to set UDP_ENCAP: %s", strerror(errno));
-		return FALSE;
-	}
-	return TRUE;
-}
-
-METHOD(kernel_ipsec_t, destroy, void,
-	private_kernel_netlink_ipsec_t *this)
-{
-	enumerator_t *enumerator;
-	policy_entry_t *policy;
-
-	array_destroy_function(this->bypass,
-						   (array_callback_t)remove_port_bypass, this);
-	if (this->socket_xfrm_events > 0)
-	{
-		lib->watcher->remove(lib->watcher, this->socket_xfrm_events);
-		close(this->socket_xfrm_events);
-	}
-	DESTROY_IF(this->socket_xfrm);
-	enumerator = this->policies->create_enumerator(this->policies);
-	while (enumerator->enumerate(enumerator, &policy, &policy))
-	{
-		policy_entry_destroy(this, policy);
-	}
-	enumerator->destroy(enumerator);
-	this->policies->destroy(this->policies);
-	this->sas->destroy(this->sas);
-	this->mutex->destroy(this->mutex);
-	free(this);
-}
-
-/*
- * Described in header.
- */
-kernel_netlink_ipsec_t *kernel_netlink_ipsec_create()
-{
-	private_kernel_netlink_ipsec_t *this;
-	bool register_for_events = TRUE;
-	FILE *f;
-
-	INIT(this,
-		.public = {
-			.interface = {
-				.get_features = _get_features,
-				.get_spi = _get_spi,
-				.get_cpi = _get_cpi,
-				.add_sa  = _add_sa,
-				.update_sa = _update_sa,
-				.query_sa = _query_sa,
-				.del_sa = _del_sa,
-				.flush_sas = _flush_sas,
-				.add_policy = _add_policy,
-				.query_policy = _query_policy,
-				.del_policy = _del_policy,
-				.flush_policies = _flush_policies,
-				.bypass_socket = _bypass_socket,
-				.enable_udp_decap = _enable_udp_decap,
-				.destroy = _destroy,
-			},
-		},
-		.policies = hashtable_create((hashtable_hash_t)policy_hash,
-									 (hashtable_equals_t)policy_equals, 32),
-		.sas = hashtable_create((hashtable_hash_t)ipsec_sa_hash,
-								(hashtable_equals_t)ipsec_sa_equals, 32),
-		.bypass = array_create(sizeof(bypass_t), 0),
-		.mutex = mutex_create(MUTEX_TYPE_DEFAULT),
-		.policy_update = lib->settings->get_bool(lib->settings,
-					"%s.plugins.kernel-netlink.policy_update", FALSE, lib->ns),
-		.install_routes = lib->settings->get_bool(lib->settings,
-							"%s.install_routes", TRUE, lib->ns),
-		.proto_port_transport = lib->settings->get_bool(lib->settings,
-						"%s.plugins.kernel-netlink.set_proto_port_transport_sa",
-						FALSE, lib->ns),
-	);
-
-	if (streq(lib->ns, "starter"))
-	{	/* starter has no threads, so we do not register for kernel events */
-		register_for_events = FALSE;
-	}
-
-	f = fopen("/proc/sys/net/core/xfrm_acq_expires", "w");
-	if (f)
-	{
-		fprintf(f, "%u", lib->settings->get_int(lib->settings,
-								"%s.plugins.kernel-netlink.xfrm_acq_expires",
-								DEFAULT_ACQUIRE_LIFETIME, lib->ns));
-		fclose(f);
-	}
-
-	this->socket_xfrm = netlink_socket_create(NETLINK_XFRM, xfrm_msg_names,
-				lib->settings->get_bool(lib->settings,
-					"%s.plugins.kernel-netlink.parallel_xfrm", FALSE, lib->ns));
-	if (!this->socket_xfrm)
-	{
-		destroy(this);
-		return NULL;
-	}
-
-	if (register_for_events)
-	{
-		struct sockaddr_nl addr;
-
-		memset(&addr, 0, sizeof(addr));
-		addr.nl_family = AF_NETLINK;
-
-		/* create and bind XFRM socket for ACQUIRE, EXPIRE, MIGRATE & MAPPING */
-		this->socket_xfrm_events = socket(AF_NETLINK, SOCK_RAW, NETLINK_XFRM);
-		if (this->socket_xfrm_events <= 0)
-		{
-			DBG1(DBG_KNL, "unable to create XFRM event socket");
-			destroy(this);
-			return NULL;
-		}
-		addr.nl_groups = XFRMNLGRP(ACQUIRE) | XFRMNLGRP(EXPIRE) |
-						 XFRMNLGRP(MIGRATE) | XFRMNLGRP(MAPPING);
-		if (bind(this->socket_xfrm_events, (struct sockaddr*)&addr, sizeof(addr)))
-		{
-			DBG1(DBG_KNL, "unable to bind XFRM event socket");
-			destroy(this);
-			return NULL;
-		}
-		lib->watcher->add(lib->watcher, this->socket_xfrm_events, WATCHER_READ,
-						  (watcher_cb_t)receive_events, this);
-	}
-
-	return &this->public;
-}
diff --git a/src/libhydra/plugins/kernel_netlink/kernel_netlink_ipsec.h b/src/libhydra/plugins/kernel_netlink/kernel_netlink_ipsec.h
deleted file mode 100644
index 3a45cce06..000000000
--- a/src/libhydra/plugins/kernel_netlink/kernel_netlink_ipsec.h
+++ /dev/null
@@ -1,46 +0,0 @@
-/*
- * Copyright (C) 2008 Tobias Brunner
- * 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_netlink_ipsec_i kernel_netlink_ipsec
- * @{ @ingroup kernel_netlink
- */
-
-#ifndef KERNEL_NETLINK_IPSEC_H_
-#define KERNEL_NETLINK_IPSEC_H_
-
-#include <kernel/kernel_ipsec.h>
-
-typedef struct kernel_netlink_ipsec_t kernel_netlink_ipsec_t;
-
-/**
- * Implementation of the kernel ipsec interface using Netlink.
- */
-struct kernel_netlink_ipsec_t {
-
-	/**
-	 * Implements kernel_ipsec_t interface
-	 */
-	kernel_ipsec_t interface;
-};
-
-/**
- * Create a netlink kernel ipsec interface instance.
- *
- * @return			kernel_netlink_ipsec_t instance
- */
-kernel_netlink_ipsec_t *kernel_netlink_ipsec_create();
-
-#endif /** KERNEL_NETLINK_IPSEC_H_ @}*/
diff --git a/src/libhydra/plugins/kernel_netlink/kernel_netlink_net.c b/src/libhydra/plugins/kernel_netlink/kernel_netlink_net.c
deleted file mode 100644
index 4e5e02d07..000000000
--- a/src/libhydra/plugins/kernel_netlink/kernel_netlink_net.c
+++ /dev/null
@@ -1,2685 +0,0 @@
-/*
- * Copyright (C) 2008-2014 Tobias Brunner
- * Copyright (C) 2005-2008 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.
- */
-
-/*
- * Copyright (C) 2010 secunet Security Networks AG
- * Copyright (C) 2010 Thomas Egerer
- *
- * 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.
- */
-
-#include <sys/socket.h>
-#include <sys/utsname.h>
-#include <linux/netlink.h>
-#include <linux/rtnetlink.h>
-#include <unistd.h>
-#include <errno.h>
-#include <net/if.h>
-#ifdef HAVE_LINUX_FIB_RULES_H
-#include <linux/fib_rules.h>
-#endif
-
-#include "kernel_netlink_net.h"
-#include "kernel_netlink_shared.h"
-
-#include <hydra.h>
-#include <utils/debug.h>
-#include <threading/mutex.h>
-#include <threading/rwlock.h>
-#include <threading/rwlock_condvar.h>
-#include <threading/spinlock.h>
-#include <collections/hashtable.h>
-#include <collections/linked_list.h>
-#include <processing/jobs/callback_job.h>
-
-/** delay before firing roam events (ms) */
-#define ROAM_DELAY 100
-
-/** delay before reinstalling routes (ms) */
-#define ROUTE_DELAY 100
-
-/** maximum recursion when searching for addresses in get_route() */
-#define MAX_ROUTE_RECURSION 2
-
-#ifndef ROUTING_TABLE
-#define ROUTING_TABLE 0
-#endif
-
-#ifndef ROUTING_TABLE_PRIO
-#define ROUTING_TABLE_PRIO 0
-#endif
-
-ENUM(rt_msg_names, RTM_NEWLINK, RTM_GETRULE,
-	"RTM_NEWLINK",
-	"RTM_DELLINK",
-	"RTM_GETLINK",
-	"RTM_SETLINK",
-	"RTM_NEWADDR",
-	"RTM_DELADDR",
-	"RTM_GETADDR",
-	"31",
-	"RTM_NEWROUTE",
-	"RTM_DELROUTE",
-	"RTM_GETROUTE",
-	"35",
-	"RTM_NEWNEIGH",
-	"RTM_DELNEIGH",
-	"RTM_GETNEIGH",
-	"RTM_NEWRULE",
-	"RTM_DELRULE",
-	"RTM_GETRULE",
-);
-
-typedef struct addr_entry_t addr_entry_t;
-
-/**
- * IP address in an iface_entry_t
- */
-struct addr_entry_t {
-
-	/** the ip address */
-	host_t *ip;
-
-	/** address flags */
-	u_char flags;
-
-	/** scope of the address */
-	u_char scope;
-
-	/** number of times this IP is used, if virtual (i.e. managed by us) */
-	u_int refcount;
-
-	/** TRUE once it is installed, if virtual */
-	bool installed;
-};
-
-/**
- * destroy a addr_entry_t object
- */
-static void addr_entry_destroy(addr_entry_t *this)
-{
-	this->ip->destroy(this->ip);
-	free(this);
-}
-
-typedef struct iface_entry_t iface_entry_t;
-
-/**
- * A network interface on this system, containing addr_entry_t's
- */
-struct iface_entry_t {
-
-	/** interface index */
-	int ifindex;
-
-	/** name of the interface */
-	char ifname[IFNAMSIZ];
-
-	/** interface flags, as in netdevice(7) SIOCGIFFLAGS */
-	u_int flags;
-
-	/** list of addresses as host_t */
-	linked_list_t *addrs;
-
-	/** TRUE if usable by config */
-	bool usable;
-};
-
-/**
- * destroy an interface entry
- */
-static void iface_entry_destroy(iface_entry_t *this)
-{
-	this->addrs->destroy_function(this->addrs, (void*)addr_entry_destroy);
-	free(this);
-}
-
-/**
- * find an interface entry by index
- */
-static bool iface_entry_by_index(iface_entry_t *this, int *ifindex)
-{
-	return this->ifindex == *ifindex;
-}
-
-/**
- * find an interface entry by name
- */
-static bool iface_entry_by_name(iface_entry_t *this, char *ifname)
-{
-	return streq(this->ifname, ifname);
-}
-
-/**
- * check if an interface is up
- */
-static inline bool iface_entry_up(iface_entry_t *iface)
-{
-	return (iface->flags & IFF_UP) == IFF_UP;
-}
-
-/**
- * check if an interface is up and usable
- */
-static inline bool iface_entry_up_and_usable(iface_entry_t *iface)
-{
-	return iface->usable && iface_entry_up(iface);
-}
-
-typedef struct addr_map_entry_t addr_map_entry_t;
-
-/**
- * Entry that maps an IP address to an interface entry
- */
-struct addr_map_entry_t {
-	/** The IP address */
-	host_t *ip;
-
-	/** The address entry for this IP address */
-	addr_entry_t *addr;
-
-	/** The interface this address is installed on */
-	iface_entry_t *iface;
-};
-
-/**
- * Hash a addr_map_entry_t object, all entries with the same IP address
- * are stored in the same bucket
- */
-static u_int addr_map_entry_hash(addr_map_entry_t *this)
-{
-	return chunk_hash(this->ip->get_address(this->ip));
-}
-
-/**
- * Compare two addr_map_entry_t objects, two entries are equal if they are
- * installed on the same interface
- */
-static bool addr_map_entry_equals(addr_map_entry_t *a, addr_map_entry_t *b)
-{
-	return a->iface->ifindex == b->iface->ifindex &&
-		   a->ip->ip_equals(a->ip, b->ip);
-}
-
-/**
- * Used with get_match this finds an address entry if it is installed on
- * an up and usable interface
- */
-static bool addr_map_entry_match_up_and_usable(addr_map_entry_t *a,
-											   addr_map_entry_t *b)
-{
-	return iface_entry_up_and_usable(b->iface) &&
-		   a->ip->ip_equals(a->ip, b->ip);
-}
-
-/**
- * Used with get_match this finds an address entry if it is installed on
- * any active local interface
- */
-static bool addr_map_entry_match_up(addr_map_entry_t *a, addr_map_entry_t *b)
-{
-	return iface_entry_up(b->iface) && a->ip->ip_equals(a->ip, b->ip);
-}
-
-/**
- * Used with get_match this finds an address entry if it is installed on
- * any local interface
- */
-static bool addr_map_entry_match(addr_map_entry_t *a, addr_map_entry_t *b)
-{
-	return a->ip->ip_equals(a->ip, b->ip);
-}
-
-typedef struct route_entry_t route_entry_t;
-
-/**
- * Installed routing entry
- */
-struct route_entry_t {
-	/** Name of the interface the route is bound to */
-	char *if_name;
-
-	/** Source ip of the route */
-	host_t *src_ip;
-
-	/** Gateway for this route */
-	host_t *gateway;
-
-	/** Destination net */
-	chunk_t dst_net;
-
-	/** Destination net prefixlen */
-	u_int8_t prefixlen;
-};
-
-/**
- * Clone a route_entry_t object.
- */
-static route_entry_t *route_entry_clone(route_entry_t *this)
-{
-	route_entry_t *route;
-
-	INIT(route,
-		.if_name = strdup(this->if_name),
-		.src_ip = this->src_ip->clone(this->src_ip),
-		.gateway = this->gateway ? this->gateway->clone(this->gateway) : NULL,
-		.dst_net = chunk_clone(this->dst_net),
-		.prefixlen = this->prefixlen,
-	);
-	return route;
-}
-
-/**
- * Destroy a route_entry_t object
- */
-static void route_entry_destroy(route_entry_t *this)
-{
-	free(this->if_name);
-	DESTROY_IF(this->src_ip);
-	DESTROY_IF(this->gateway);
-	chunk_free(&this->dst_net);
-	free(this);
-}
-
-/**
- * Hash a route_entry_t object
- */
-static u_int route_entry_hash(route_entry_t *this)
-{
-	return chunk_hash_inc(chunk_from_thing(this->prefixlen),
-						  chunk_hash(this->dst_net));
-}
-
-/**
- * Compare two route_entry_t objects
- */
-static bool route_entry_equals(route_entry_t *a, route_entry_t *b)
-{
-	if (a->if_name && b->if_name && streq(a->if_name, b->if_name) &&
-		a->src_ip->ip_equals(a->src_ip, b->src_ip) &&
-		chunk_equals(a->dst_net, b->dst_net) && a->prefixlen == b->prefixlen)
-	{
-		return (!a->gateway && !b->gateway) || (a->gateway && b->gateway &&
-					a->gateway->ip_equals(a->gateway, b->gateway));
-	}
-	return FALSE;
-}
-
-typedef struct net_change_t net_change_t;
-
-/**
- * Queued network changes
- */
-struct net_change_t {
-	/** Name of the interface that got activated (or an IP appeared on) */
-	char *if_name;
-};
-
-/**
- * Destroy a net_change_t object
- */
-static void net_change_destroy(net_change_t *this)
-{
-	free(this->if_name);
-	free(this);
-}
-
-/**
- * Hash a net_change_t object
- */
-static u_int net_change_hash(net_change_t *this)
-{
-	return chunk_hash(chunk_create(this->if_name, strlen(this->if_name)));
-}
-
-/**
- * Compare two net_change_t objects
- */
-static bool net_change_equals(net_change_t *a, net_change_t *b)
-{
-	return streq(a->if_name, b->if_name);
-}
-
-typedef struct private_kernel_netlink_net_t private_kernel_netlink_net_t;
-
-/**
- * Private variables and functions of kernel_netlink_net class.
- */
-struct private_kernel_netlink_net_t {
-	/**
-	 * Public part of the kernel_netlink_net_t object.
-	 */
-	kernel_netlink_net_t public;
-
-	/**
-	 * lock to access various lists and maps
-	 */
-	rwlock_t *lock;
-
-	/**
-	 * condition variable to signal virtual IP add/removal
-	 */
-	rwlock_condvar_t *condvar;
-
-	/**
-	 * Cached list of interfaces and its addresses (iface_entry_t)
-	 */
-	linked_list_t *ifaces;
-
-	/**
-	 * Map for IP addresses to iface_entry_t objects (addr_map_entry_t)
-	 */
-	hashtable_t *addrs;
-
-	/**
-	 * Map for virtual IP addresses to iface_entry_t objects (addr_map_entry_t)
-	 */
-	hashtable_t *vips;
-
-	/**
-	 * netlink rt socket (routing)
-	 */
-	netlink_socket_t *socket;
-
-	/**
-	 * Netlink rt socket to receive address change events
-	 */
-	int socket_events;
-
-	/**
-	 * earliest time of the next roam event
-	 */
-	timeval_t next_roam;
-
-	/**
-	 * roam event due to address change
-	 */
-	bool roam_address;
-
-	/**
-	 * lock to check and update roam event time
-	 */
-	spinlock_t *roam_lock;
-
-	/**
-	 * routing table to install routes
-	 */
-	int routing_table;
-
-	/**
-	 * priority of used routing table
-	 */
-	int routing_table_prio;
-
-	/**
-	 * installed routes
-	 */
-	hashtable_t *routes;
-
-	/**
-	 * mutex for routes
-	 */
-	mutex_t *routes_lock;
-
-	/**
-	 * interface changes which may trigger route reinstallation
-	 */
-	hashtable_t *net_changes;
-
-	/**
-	 * mutex for route reinstallation triggers
-	 */
-	mutex_t *net_changes_lock;
-
-	/**
-	 * time of last route reinstallation
-	 */
-	timeval_t last_route_reinstall;
-
-	/**
-	 * whether to react to RTM_NEWROUTE or RTM_DELROUTE events
-	 */
-	bool process_route;
-
-	/**
-	 * whether to trigger roam events
-	 */
-	bool roam_events;
-
-	/**
-	 * whether to actually install virtual IPs
-	 */
-	bool install_virtual_ip;
-
-	/**
-	 * the name of the interface virtual IP addresses are installed on
-	 */
-	char *install_virtual_ip_on;
-
-	/**
-	 * whether preferred source addresses can be specified for IPv6 routes
-	 */
-	bool rta_prefsrc_for_ipv6;
-
-	/**
-	 * whether marks can be used in route lookups
-	 */
-	bool rta_mark;
-
-	/**
-	 * the mark excluded from the routing rule used for virtual IPs
-	 */
-	mark_t routing_mark;
-
-	/**
-	 * whether to prefer temporary IPv6 addresses over public ones
-	 */
-	bool prefer_temporary_addrs;
-
-	/**
-	 * list with routing tables to be excluded from route lookup
-	 */
-	linked_list_t *rt_exclude;
-
-	/**
-	 * MTU to set on installed routes
-	 */
-	u_int32_t mtu;
-
-	/**
-	 * MSS to set on installed routes
-	 */
-	u_int32_t mss;
-};
-
-/**
- * Forward declaration
- */
-static status_t manage_srcroute(private_kernel_netlink_net_t *this,
-								int nlmsg_type, int flags, chunk_t dst_net,
-								u_int8_t prefixlen, host_t *gateway,
-								host_t *src_ip, char *if_name);
-
-/**
- * Clear the queued network changes.
- */
-static void net_changes_clear(private_kernel_netlink_net_t *this)
-{
-	enumerator_t *enumerator;
-	net_change_t *change;
-
-	enumerator = this->net_changes->create_enumerator(this->net_changes);
-	while (enumerator->enumerate(enumerator, NULL, (void**)&change))
-	{
-		this->net_changes->remove_at(this->net_changes, enumerator);
-		net_change_destroy(change);
-	}
-	enumerator->destroy(enumerator);
-}
-
-/**
- * Act upon queued network changes.
- */
-static job_requeue_t reinstall_routes(private_kernel_netlink_net_t *this)
-{
-	enumerator_t *enumerator;
-	route_entry_t *route;
-
-	this->net_changes_lock->lock(this->net_changes_lock);
-	this->routes_lock->lock(this->routes_lock);
-
-	enumerator = this->routes->create_enumerator(this->routes);
-	while (enumerator->enumerate(enumerator, NULL, (void**)&route))
-	{
-		net_change_t *change, lookup = {
-			.if_name = route->if_name,
-		};
-		/* check if a change for the outgoing interface is queued */
-		change = this->net_changes->get(this->net_changes, &lookup);
-		if (!change)
-		{	/* in case src_ip is not on the outgoing interface */
-			if (this->public.interface.get_interface(&this->public.interface,
-												route->src_ip, &lookup.if_name))
-			{
-				if (!streq(lookup.if_name, route->if_name))
-				{
-					change = this->net_changes->get(this->net_changes, &lookup);
-				}
-				free(lookup.if_name);
-			}
-		}
-		if (change)
-		{
-			manage_srcroute(this, RTM_NEWROUTE, NLM_F_CREATE | NLM_F_EXCL,
-							route->dst_net, route->prefixlen, route->gateway,
-							route->src_ip, route->if_name);
-		}
-	}
-	enumerator->destroy(enumerator);
-	this->routes_lock->unlock(this->routes_lock);
-
-	net_changes_clear(this);
-	this->net_changes_lock->unlock(this->net_changes_lock);
-	return JOB_REQUEUE_NONE;
-}
-
-/**
- * Queue route reinstallation caused by network changes for a given interface.
- *
- * The route reinstallation is delayed for a while and only done once for
- * several calls during this delay, in order to avoid doing it too often.
- * The interface name is freed.
- */
-static void queue_route_reinstall(private_kernel_netlink_net_t *this,
-								  char *if_name)
-{
-	net_change_t *update, *found;
-	timeval_t now;
-	job_t *job;
-
-	INIT(update,
-		.if_name = if_name
-	);
-
-	this->net_changes_lock->lock(this->net_changes_lock);
-	found = this->net_changes->put(this->net_changes, update, update);
-	if (found)
-	{
-		net_change_destroy(found);
-	}
-	time_monotonic(&now);
-	if (timercmp(&now, &this->last_route_reinstall, >))
-	{
-		timeval_add_ms(&now, ROUTE_DELAY);
-		this->last_route_reinstall = now;
-
-		job = (job_t*)callback_job_create((callback_job_cb_t)reinstall_routes,
-										  this, NULL, NULL);
-		lib->scheduler->schedule_job_ms(lib->scheduler, job, ROUTE_DELAY);
-	}
-	this->net_changes_lock->unlock(this->net_changes_lock);
-}
-
-/**
- * check if the given IP is known as virtual IP and currently installed
- *
- * this function will also return TRUE if the virtual IP entry disappeared.
- * in that case the returned entry will be NULL.
- *
- * this->lock must be held when calling this function
- */
-static bool is_vip_installed_or_gone(private_kernel_netlink_net_t *this,
-									 host_t *ip, addr_map_entry_t **entry)
-{
-	addr_map_entry_t lookup = {
-		.ip = ip,
-	};
-
-	*entry = this->vips->get_match(this->vips, &lookup,
-								  (void*)addr_map_entry_match);
-	if (*entry == NULL)
-	{	/* the virtual IP disappeared */
-		return TRUE;
-	}
-	return (*entry)->addr->installed;
-}
-
-/**
- * check if the given IP is known as virtual IP
- *
- * this->lock must be held when calling this function
- */
-static bool is_known_vip(private_kernel_netlink_net_t *this, host_t *ip)
-{
-	addr_map_entry_t lookup = {
-		.ip = ip,
-	};
-
-	return this->vips->get_match(this->vips, &lookup,
-								(void*)addr_map_entry_match) != NULL;
-}
-
-/**
- * Add an address map entry
- */
-static void addr_map_entry_add(hashtable_t *map, addr_entry_t *addr,
-							   iface_entry_t *iface)
-{
-	addr_map_entry_t *entry;
-
-	INIT(entry,
-		.ip = addr->ip,
-		.addr = addr,
-		.iface = iface,
-	);
-	entry = map->put(map, entry, entry);
-	free(entry);
-}
-
-/**
- * Remove an address map entry
- */
-static void addr_map_entry_remove(hashtable_t *map, addr_entry_t *addr,
-								  iface_entry_t *iface)
-{
-	addr_map_entry_t *entry, lookup = {
-		.ip = addr->ip,
-		.addr = addr,
-		.iface = iface,
-	};
-
-	entry = map->remove(map, &lookup);
-	free(entry);
-}
-
-/**
- * Determine the type or scope of the given unicast IP address.  This is not
- * the same thing returned in rtm_scope/ifa_scope.
- *
- * We use return values as defined in RFC 6724 (referring to RFC 4291).
- */
-static u_char get_scope(host_t *ip)
-{
-	chunk_t addr;
-
-	addr = ip->get_address(ip);
-	switch (addr.len)
-	{
-		case 4:
-			/* we use the mapping defined in RFC 6724, 3.2 */
-			if (addr.ptr[0] == 127)
-			{	/* link-local, same as the IPv6 loopback address */
-				return 2;
-			}
-			if (addr.ptr[0] == 169 && addr.ptr[1] == 254)
-			{	/* link-local */
-				return 2;
-			}
-			break;
-		case 16:
-			if (IN6_IS_ADDR_LOOPBACK((struct in6_addr*)addr.ptr))
-			{	/* link-local, according to RFC 4291, 2.5.3 */
-				return 2;
-			}
-			if (IN6_IS_ADDR_LINKLOCAL((struct in6_addr*)addr.ptr))
-			{
-				return 2;
-			}
-			if (IN6_IS_ADDR_SITELOCAL((struct in6_addr*)addr.ptr))
-			{	/* deprecated, according to RFC 4291, 2.5.7 */
-				return 5;
-			}
-			break;
-		default:
-			break;
-	}
-	/* global */
-	return 14;
-}
-
-/**
- * Returns the length of the common prefix in bits up to the length of a's
- * prefix, defined by RFC 6724 as the portion of the address not including the
- * interface ID, which is 64-bit for most unicast addresses (see RFC 4291).
- */
-static u_char common_prefix(host_t *a, host_t *b)
-{
-	chunk_t aa, ba;
-	u_char byte, bits = 0, match;
-
-	aa = a->get_address(a);
-	ba = b->get_address(b);
-	for (byte = 0; byte < 8; byte++)
-	{
-		if (aa.ptr[byte] != ba.ptr[byte])
-		{
-			match = aa.ptr[byte] ^ ba.ptr[byte];
-			for (bits = 8; match; match >>= 1)
-			{
-				bits--;
-			}
-			break;
-		}
-	}
-	return byte * 8 + bits;
-}
-
-/**
- * Compare two IP addresses and return TRUE if the second address is the better
- * choice of the two to reach the destination.
- * For IPv6 we approximately follow RFC 6724.
- */
-static bool is_address_better(private_kernel_netlink_net_t *this,
-							  addr_entry_t *a, addr_entry_t *b, host_t *d)
-{
-	u_char sa, sb, sd, pa, pb;
-
-	/* rule 2: prefer appropriate scope */
-	if (d)
-	{
-		sa = get_scope(a->ip);
-		sb = get_scope(b->ip);
-		sd = get_scope(d);
-		if (sa < sb)
-		{
-			return sa < sd;
-		}
-		else if (sb < sa)
-		{
-			return sb >= sd;
-		}
-	}
-	if (a->ip->get_family(a->ip) == AF_INET)
-	{	/* stop here for IPv4, default to addresses found earlier */
-		return FALSE;
-	}
-	/* rule 3: avoid deprecated addresses (RFC 4862) */
-	if ((a->flags & IFA_F_DEPRECATED) != (b->flags & IFA_F_DEPRECATED))
-	{
-		return a->flags & IFA_F_DEPRECATED;
-	}
-	/* rule 4 is not applicable as we don't know if an address is a home or
-	 * care-of addresses.
-	 * rule 5 does not apply as we only compare addresses from one interface
-	 * rule 6 requires a policy table (optionally configurable) to match
-	 * configurable labels
-	 */
-	/* rule 7: prefer temporary addresses (WE REVERSE THIS BY DEFAULT!) */
-	if ((a->flags & IFA_F_TEMPORARY) != (b->flags & IFA_F_TEMPORARY))
-	{
-		if (this->prefer_temporary_addrs)
-		{
-			return b->flags & IFA_F_TEMPORARY;
-		}
-		return a->flags & IFA_F_TEMPORARY;
-	}
-	/* rule 8: use longest matching prefix */
-	if (d)
-	{
-		pa = common_prefix(a->ip, d);
-		pb = common_prefix(b->ip, d);
-		if (pa != pb)
-		{
-			return pb > pa;
-		}
-	}
-	/* default to addresses found earlier */
-	return FALSE;
-}
-
-/**
- * Get a non-virtual IP address on the given interface.
- *
- * If a candidate address is given, we first search for that address and if not
- * found return the address as above.
- * Returned host is a clone, has to be freed by caller.
- *
- * this->lock must be held when calling this function.
- */
-static host_t *get_interface_address(private_kernel_netlink_net_t *this,
-									 int ifindex, int family, host_t *dest,
-									 host_t *candidate)
-{
-	iface_entry_t *iface;
-	enumerator_t *addrs;
-	addr_entry_t *addr, *best = NULL;
-
-	if (this->ifaces->find_first(this->ifaces, (void*)iface_entry_by_index,
-								 (void**)&iface, &ifindex) == SUCCESS)
-	{
-		if (iface->usable)
-		{	/* only use interfaces not excluded by config */
-			addrs = iface->addrs->create_enumerator(iface->addrs);
-			while (addrs->enumerate(addrs, &addr))
-			{
-				if (addr->refcount ||
-					addr->ip->get_family(addr->ip) != family)
-				{	/* ignore virtual IP addresses and ensure family matches */
-					continue;
-				}
-				if (candidate && candidate->ip_equals(candidate, addr->ip))
-				{	/* stop if we find the candidate */
-					best = addr;
-					break;
-				}
-				else if (!best || is_address_better(this, best, addr, dest))
-				{
-					best = addr;
-				}
-			}
-			addrs->destroy(addrs);
-		}
-	}
-	return best ? best->ip->clone(best->ip) : NULL;
-}
-
-/**
- * callback function that raises the delayed roam event
- */
-static job_requeue_t roam_event(private_kernel_netlink_net_t *this)
-{
-	bool address;
-
-	this->roam_lock->lock(this->roam_lock);
-	address = this->roam_address;
-	this->roam_address = FALSE;
-	this->roam_lock->unlock(this->roam_lock);
-	hydra->kernel_interface->roam(hydra->kernel_interface, address);
-	return JOB_REQUEUE_NONE;
-}
-
-/**
- * fire a roaming event. we delay it for a bit and fire only one event
- * for multiple calls. otherwise we would create too many events.
- */
-static void fire_roam_event(private_kernel_netlink_net_t *this, bool address)
-{
-	timeval_t now;
-	job_t *job;
-
-	if (!this->roam_events)
-	{
-		return;
-	}
-
-	time_monotonic(&now);
-	this->roam_lock->lock(this->roam_lock);
-	this->roam_address |= address;
-	if (!timercmp(&now, &this->next_roam, >))
-	{
-		this->roam_lock->unlock(this->roam_lock);
-		return;
-	}
-	timeval_add_ms(&now, ROAM_DELAY);
-	this->next_roam = now;
-	this->roam_lock->unlock(this->roam_lock);
-
-	job = (job_t*)callback_job_create((callback_job_cb_t)roam_event,
-									  this, NULL, NULL);
-	lib->scheduler->schedule_job_ms(lib->scheduler, job, ROAM_DELAY);
-}
-
-/**
- * check if an interface with a given index is up and usable
- *
- * this->lock must be locked when calling this function
- */
-static bool is_interface_up_and_usable(private_kernel_netlink_net_t *this,
-									   int index)
-{
-	iface_entry_t *iface;
-
-	if (this->ifaces->find_first(this->ifaces, (void*)iface_entry_by_index,
-								 (void**)&iface, &index) == SUCCESS)
-	{
-		return iface_entry_up_and_usable(iface);
-	}
-	return FALSE;
-}
-
-/**
- * unregister the current addr_entry_t from the hashtable it is stored in
- *
- * this->lock must be locked when calling this function
- */
-static void addr_entry_unregister(addr_entry_t *addr, iface_entry_t *iface,
-								  private_kernel_netlink_net_t *this)
-{
-	if (addr->refcount)
-	{
-		addr_map_entry_remove(this->vips, addr, iface);
-		this->condvar->broadcast(this->condvar);
-		return;
-	}
-	addr_map_entry_remove(this->addrs, addr, iface);
-}
-
-/**
- * process RTM_NEWLINK/RTM_DELLINK from kernel
- */
-static void process_link(private_kernel_netlink_net_t *this,
-						 struct nlmsghdr *hdr, bool event)
-{
-	struct ifinfomsg* msg = NLMSG_DATA(hdr);
-	struct rtattr *rta = IFLA_RTA(msg);
-	size_t rtasize = IFLA_PAYLOAD (hdr);
-	enumerator_t *enumerator;
-	iface_entry_t *current, *entry = NULL;
-	char *name = NULL;
-	bool update = FALSE, update_routes = FALSE;
-
-	while (RTA_OK(rta, rtasize))
-	{
-		switch (rta->rta_type)
-		{
-			case IFLA_IFNAME:
-				name = RTA_DATA(rta);
-				break;
-		}
-		rta = RTA_NEXT(rta, rtasize);
-	}
-	if (!name)
-	{
-		name = "(unknown)";
-	}
-
-	this->lock->write_lock(this->lock);
-	switch (hdr->nlmsg_type)
-	{
-		case RTM_NEWLINK:
-		{
-			if (this->ifaces->find_first(this->ifaces,
-									(void*)iface_entry_by_index, (void**)&entry,
-									&msg->ifi_index) != SUCCESS)
-			{
-				INIT(entry,
-					.ifindex = msg->ifi_index,
-					.addrs = linked_list_create(),
-					.usable = hydra->kernel_interface->is_interface_usable(
-												hydra->kernel_interface, name),
-				);
-				this->ifaces->insert_last(this->ifaces, entry);
-			}
-			strncpy(entry->ifname, name, IFNAMSIZ);
-			entry->ifname[IFNAMSIZ-1] = '\0';
-			if (event && entry->usable)
-			{
-				if (!(entry->flags & IFF_UP) && (msg->ifi_flags & IFF_UP))
-				{
-					update = update_routes = TRUE;
-					DBG1(DBG_KNL, "interface %s activated", name);
-				}
-				if ((entry->flags & IFF_UP) && !(msg->ifi_flags & IFF_UP))
-				{
-					update = TRUE;
-					DBG1(DBG_KNL, "interface %s deactivated", name);
-				}
-			}
-			entry->flags = msg->ifi_flags;
-			break;
-		}
-		case RTM_DELLINK:
-		{
-			enumerator = this->ifaces->create_enumerator(this->ifaces);
-			while (enumerator->enumerate(enumerator, &current))
-			{
-				if (current->ifindex == msg->ifi_index)
-				{
-					if (event && current->usable)
-					{
-						update = TRUE;
-						DBG1(DBG_KNL, "interface %s deleted", current->ifname);
-					}
-					/* TODO: move virtual IPs installed on this interface to
-					 * another interface? */
-					this->ifaces->remove_at(this->ifaces, enumerator);
-					current->addrs->invoke_function(current->addrs,
-								(void*)addr_entry_unregister, current, this);
-					iface_entry_destroy(current);
-					break;
-				}
-			}
-			enumerator->destroy(enumerator);
-			break;
-		}
-	}
-	this->lock->unlock(this->lock);
-
-	if (update_routes && event)
-	{
-		queue_route_reinstall(this, strdup(name));
-	}
-
-	if (update && event)
-	{
-		fire_roam_event(this, TRUE);
-	}
-}
-
-/**
- * process RTM_NEWADDR/RTM_DELADDR from kernel
- */
-static void process_addr(private_kernel_netlink_net_t *this,
-						 struct nlmsghdr *hdr, bool event)
-{
-	struct ifaddrmsg* msg = NLMSG_DATA(hdr);
-	struct rtattr *rta = IFA_RTA(msg);
-	size_t rtasize = IFA_PAYLOAD (hdr);
-	host_t *host = NULL;
-	iface_entry_t *iface;
-	chunk_t local = chunk_empty, address = chunk_empty;
-	char *route_ifname = NULL;
-	bool update = FALSE, found = FALSE, changed = FALSE;
-
-	while (RTA_OK(rta, rtasize))
-	{
-		switch (rta->rta_type)
-		{
-			case IFA_LOCAL:
-				local.ptr = RTA_DATA(rta);
-				local.len = RTA_PAYLOAD(rta);
-				break;
-			case IFA_ADDRESS:
-				address.ptr = RTA_DATA(rta);
-				address.len = RTA_PAYLOAD(rta);
-				break;
-		}
-		rta = RTA_NEXT(rta, rtasize);
-	}
-
-	/* For PPP interfaces, we need the IFA_LOCAL address,
-	 * IFA_ADDRESS is the peers address. But IFA_LOCAL is
-	 * not included in all cases (IPv6?), so fallback to IFA_ADDRESS. */
-	if (local.ptr)
-	{
-		host = host_create_from_chunk(msg->ifa_family, local, 0);
-	}
-	else if (address.ptr)
-	{
-		host = host_create_from_chunk(msg->ifa_family, address, 0);
-	}
-
-	if (host == NULL)
-	{	/* bad family? */
-		return;
-	}
-
-	this->lock->write_lock(this->lock);
-	if (this->ifaces->find_first(this->ifaces, (void*)iface_entry_by_index,
-								 (void**)&iface, &msg->ifa_index) == SUCCESS)
-	{
-		addr_map_entry_t *entry, lookup = {
-			.ip = host,
-			.iface = iface,
-		};
-		addr_entry_t *addr;
-
-		entry = this->vips->get(this->vips, &lookup);
-		if (entry)
-		{
-			if (hdr->nlmsg_type == RTM_NEWADDR)
-			{	/* mark as installed and signal waiting threads */
-				entry->addr->installed = TRUE;
-			}
-			else
-			{	/* the address was already marked as uninstalled */
-				addr = entry->addr;
-				iface->addrs->remove(iface->addrs, addr, NULL);
-				addr_map_entry_remove(this->vips, addr, iface);
-				addr_entry_destroy(addr);
-			}
-			/* no roam events etc. for virtual IPs */
-			this->condvar->broadcast(this->condvar);
-			this->lock->unlock(this->lock);
-			host->destroy(host);
-			return;
-		}
-		entry = this->addrs->get(this->addrs, &lookup);
-		if (entry)
-		{
-			if (hdr->nlmsg_type == RTM_DELADDR)
-			{
-				found = TRUE;
-				addr = entry->addr;
-				iface->addrs->remove(iface->addrs, addr, NULL);
-				if (iface->usable)
-				{
-					changed = TRUE;
-					DBG1(DBG_KNL, "%H disappeared from %s", host,
-						 iface->ifname);
-				}
-				addr_map_entry_remove(this->addrs, addr, iface);
-				addr_entry_destroy(addr);
-			}
-		}
-		else
-		{
-			if (hdr->nlmsg_type == RTM_NEWADDR)
-			{
-				found = TRUE;
-				changed = TRUE;
-				route_ifname = strdup(iface->ifname);
-				INIT(addr,
-					.ip = host->clone(host),
-					.flags = msg->ifa_flags,
-					.scope = msg->ifa_scope,
-				);
-				iface->addrs->insert_last(iface->addrs, addr);
-				addr_map_entry_add(this->addrs, addr, iface);
-				if (event && iface->usable)
-				{
-					DBG1(DBG_KNL, "%H appeared on %s", host, iface->ifname);
-				}
-			}
-		}
-		if (found && (iface->flags & IFF_UP))
-		{
-			update = TRUE;
-		}
-		if (!iface->usable)
-		{	/* ignore events for interfaces excluded by config */
-			update = changed = FALSE;
-		}
-	}
-	this->lock->unlock(this->lock);
-
-	if (update && event && route_ifname)
-	{
-		queue_route_reinstall(this, route_ifname);
-	}
-	else
-	{
-		free(route_ifname);
-	}
-	host->destroy(host);
-
-	/* send an update to all IKE_SAs */
-	if (update && event && changed)
-	{
-		fire_roam_event(this, TRUE);
-	}
-}
-
-/**
- * process RTM_NEWROUTE and RTM_DELROUTE from kernel
- */
-static void process_route(private_kernel_netlink_net_t *this, struct nlmsghdr *hdr)
-{
-	struct rtmsg* msg = NLMSG_DATA(hdr);
-	struct rtattr *rta = RTM_RTA(msg);
-	size_t rtasize = RTM_PAYLOAD(hdr);
-	u_int32_t rta_oif = 0;
-	host_t *host = NULL;
-
-	/* ignore routes added by us or in the local routing table (local addrs) */
-	if (msg->rtm_table && (msg->rtm_table == this->routing_table ||
-						   msg->rtm_table == RT_TABLE_LOCAL))
-	{
-		return;
-	}
-	else if (msg->rtm_flags & RTM_F_CLONED)
-	{	/* ignore cached routes, seem to be created a lot for IPv6 */
-		return;
-	}
-
-	while (RTA_OK(rta, rtasize))
-	{
-		switch (rta->rta_type)
-		{
-			case RTA_PREFSRC:
-				DESTROY_IF(host);
-				host = host_create_from_chunk(msg->rtm_family,
-							chunk_create(RTA_DATA(rta), RTA_PAYLOAD(rta)), 0);
-				break;
-			case RTA_OIF:
-				if (RTA_PAYLOAD(rta) == sizeof(rta_oif))
-				{
-					rta_oif = *(u_int32_t*)RTA_DATA(rta);
-				}
-				break;
-		}
-		rta = RTA_NEXT(rta, rtasize);
-	}
-	this->lock->read_lock(this->lock);
-	if (rta_oif && !is_interface_up_and_usable(this, rta_oif))
-	{	/* ignore route changes for interfaces that are ignored or down */
-		this->lock->unlock(this->lock);
-		DESTROY_IF(host);
-		return;
-	}
-	if (!host && rta_oif)
-	{
-		host = get_interface_address(this, rta_oif, msg->rtm_family,
-									 NULL, NULL);
-	}
-	if (!host || is_known_vip(this, host))
-	{	/* ignore routes added for virtual IPs */
-		this->lock->unlock(this->lock);
-		DESTROY_IF(host);
-		return;
-	}
-	this->lock->unlock(this->lock);
-	fire_roam_event(this, FALSE);
-	host->destroy(host);
-}
-
-/**
- * Receives events from kernel
- */
-static bool receive_events(private_kernel_netlink_net_t *this, int fd,
-						   watcher_event_t event)
-{
-	char response[1536];
-	struct nlmsghdr *hdr = (struct nlmsghdr*)response;
-	struct sockaddr_nl addr;
-	socklen_t addr_len = sizeof(addr);
-	int len;
-
-	len = recvfrom(this->socket_events, response, sizeof(response),
-				   MSG_DONTWAIT, (struct sockaddr*)&addr, &addr_len);
-	if (len < 0)
-	{
-		switch (errno)
-		{
-			case EINTR:
-				/* interrupted, try again */
-				return TRUE;
-			case EAGAIN:
-				/* no data ready, select again */
-				return TRUE;
-			default:
-				DBG1(DBG_KNL, "unable to receive from rt event socket");
-				sleep(1);
-				return TRUE;
-		}
-	}
-
-	if (addr.nl_pid != 0)
-	{	/* not from kernel. not interested, try another one */
-		return TRUE;
-	}
-
-	while (NLMSG_OK(hdr, len))
-	{
-		/* looks good so far, dispatch netlink message */
-		switch (hdr->nlmsg_type)
-		{
-			case RTM_NEWADDR:
-			case RTM_DELADDR:
-				process_addr(this, hdr, TRUE);
-				break;
-			case RTM_NEWLINK:
-			case RTM_DELLINK:
-				process_link(this, hdr, TRUE);
-				break;
-			case RTM_NEWROUTE:
-			case RTM_DELROUTE:
-				if (this->process_route)
-				{
-					process_route(this, hdr);
-				}
-				break;
-			default:
-				break;
-		}
-		hdr = NLMSG_NEXT(hdr, len);
-	}
-	return TRUE;
-}
-
-/** enumerator over addresses */
-typedef struct {
-	private_kernel_netlink_net_t* this;
-	/** which addresses to enumerate */
-	kernel_address_type_t which;
-} address_enumerator_t;
-
-/**
- * cleanup function for address enumerator
- */
-static void address_enumerator_destroy(address_enumerator_t *data)
-{
-	data->this->lock->unlock(data->this->lock);
-	free(data);
-}
-
-/**
- * filter for addresses
- */
-static bool filter_addresses(address_enumerator_t *data,
-							 addr_entry_t** in, host_t** out)
-{
-	if (!(data->which & ADDR_TYPE_VIRTUAL) && (*in)->refcount)
-	{	/* skip virtual interfaces added by us */
-		return FALSE;
-	}
-	if (!(data->which & ADDR_TYPE_REGULAR) && !(*in)->refcount)
-	{	/* address is regular, but not requested */
-		return FALSE;
-	}
-	if ((*in)->scope >= RT_SCOPE_LINK)
-	{	/* skip addresses with a unusable scope */
-		return FALSE;
-	}
-	*out = (*in)->ip;
-	return TRUE;
-}
-
-/**
- * enumerator constructor for interfaces
- */
-static enumerator_t *create_iface_enumerator(iface_entry_t *iface,
-											 address_enumerator_t *data)
-{
-	return enumerator_create_filter(
-				iface->addrs->create_enumerator(iface->addrs),
-				(void*)filter_addresses, data, NULL);
-}
-
-/**
- * filter for interfaces
- */
-static bool filter_interfaces(address_enumerator_t *data, iface_entry_t** in,
-							  iface_entry_t** out)
-{
-	if (!(data->which & ADDR_TYPE_IGNORED) && !(*in)->usable)
-	{	/* skip interfaces excluded by config */
-		return FALSE;
-	}
-	if (!(data->which & ADDR_TYPE_LOOPBACK) && ((*in)->flags & IFF_LOOPBACK))
-	{	/* ignore loopback devices */
-		return FALSE;
-	}
-	if (!(data->which & ADDR_TYPE_DOWN) && !((*in)->flags & IFF_UP))
-	{	/* skip interfaces not up */
-		return FALSE;
-	}
-	*out = *in;
-	return TRUE;
-}
-
-METHOD(kernel_net_t, create_address_enumerator, enumerator_t*,
-	private_kernel_netlink_net_t *this, kernel_address_type_t which)
-{
-	address_enumerator_t *data;
-
-	INIT(data,
-		.this = this,
-		.which = which,
-	);
-
-	this->lock->read_lock(this->lock);
-	return enumerator_create_nested(
-				enumerator_create_filter(
-					this->ifaces->create_enumerator(this->ifaces),
-					(void*)filter_interfaces, data, NULL),
-				(void*)create_iface_enumerator, data,
-				(void*)address_enumerator_destroy);
-}
-
-METHOD(kernel_net_t, get_interface_name, bool,
-	private_kernel_netlink_net_t *this, host_t* ip, char **name)
-{
-	addr_map_entry_t *entry, lookup = {
-		.ip = ip,
-	};
-
-	if (ip->is_anyaddr(ip))
-	{
-		return FALSE;
-	}
-	this->lock->read_lock(this->lock);
-	/* first try to find it on an up and usable interface */
-	entry = this->addrs->get_match(this->addrs, &lookup,
-								  (void*)addr_map_entry_match_up_and_usable);
-	if (entry)
-	{
-		if (name)
-		{
-			*name = strdup(entry->iface->ifname);
-			DBG2(DBG_KNL, "%H is on interface %s", ip, *name);
-		}
-		this->lock->unlock(this->lock);
-		return TRUE;
-	}
-	/* in a second step, consider virtual IPs installed by us */
-	entry = this->vips->get_match(this->vips, &lookup,
-								  (void*)addr_map_entry_match_up_and_usable);
-	if (entry)
-	{
-		if (name)
-		{
-			*name = strdup(entry->iface->ifname);
-			DBG2(DBG_KNL, "virtual IP %H is on interface %s", ip, *name);
-		}
-		this->lock->unlock(this->lock);
-		return TRUE;
-	}
-	/* maybe it is installed on an ignored interface */
-	entry = this->addrs->get_match(this->addrs, &lookup,
-								  (void*)addr_map_entry_match_up);
-	if (!entry)
-	{
-		DBG2(DBG_KNL, "%H is not a local address or the interface is down", ip);
-	}
-	this->lock->unlock(this->lock);
-	return FALSE;
-}
-
-/**
- * get the index of an interface by name
- */
-static int get_interface_index(private_kernel_netlink_net_t *this, char* name)
-{
-	iface_entry_t *iface;
-	int ifindex = 0;
-
-	DBG2(DBG_KNL, "getting iface index for %s", name);
-
-	this->lock->read_lock(this->lock);
-	if (this->ifaces->find_first(this->ifaces, (void*)iface_entry_by_name,
-								(void**)&iface, name) == SUCCESS)
-	{
-		ifindex = iface->ifindex;
-	}
-	this->lock->unlock(this->lock);
-
-	if (ifindex == 0)
-	{
-		DBG1(DBG_KNL, "unable to get interface index for %s", name);
-	}
-	return ifindex;
-}
-
-/**
- * check if an address or net (addr with prefix net bits) is in
- * subnet (net with net_len net bits)
- */
-static bool addr_in_subnet(chunk_t addr, int prefix, chunk_t net, int net_len)
-{
-	static const u_char mask[] = { 0x00, 0x80, 0xc0, 0xe0, 0xf0, 0xf8, 0xfc, 0xfe };
-	int byte = 0;
-
-	if (net_len == 0)
-	{	/* any address matches a /0 network */
-		return TRUE;
-	}
-	if (addr.len != net.len || net_len > 8 * net.len || prefix < net_len)
-	{
-		return FALSE;
-	}
-	/* scan through all bytes in network order */
-	while (net_len > 0)
-	{
-		if (net_len < 8)
-		{
-			return (mask[net_len] & addr.ptr[byte]) == (mask[net_len] & net.ptr[byte]);
-		}
-		else
-		{
-			if (addr.ptr[byte] != net.ptr[byte])
-			{
-				return FALSE;
-			}
-			byte++;
-			net_len -= 8;
-		}
-	}
-	return TRUE;
-}
-
-/**
- * Store information about a route retrieved via RTNETLINK
- */
-typedef struct {
-	chunk_t gtw;
-	chunk_t src;
-	chunk_t dst;
-	host_t *src_host;
-	u_int8_t dst_len;
-	u_int32_t table;
-	u_int32_t oif;
-	u_int32_t priority;
-} rt_entry_t;
-
-/**
- * Free a route entry
- */
-static void rt_entry_destroy(rt_entry_t *this)
-{
-	DESTROY_IF(this->src_host);
-	free(this);
-}
-
-/**
- * Check if the route received with RTM_NEWROUTE is usable based on its type.
- */
-static bool route_usable(struct nlmsghdr *hdr)
-{
-	struct rtmsg *msg;
-
-	msg = NLMSG_DATA(hdr);
-	switch (msg->rtm_type)
-	{
-		case RTN_BLACKHOLE:
-		case RTN_UNREACHABLE:
-		case RTN_PROHIBIT:
-		case RTN_THROW:
-			return FALSE;
-		default:
-			return TRUE;
-	}
-}
-
-/**
- * Parse route received with RTM_NEWROUTE. The given rt_entry_t object will be
- * reused if not NULL.
- *
- * Returned chunks point to internal data of the Netlink message.
- */
-static rt_entry_t *parse_route(struct nlmsghdr *hdr, rt_entry_t *route)
-{
-	struct rtattr *rta;
-	struct rtmsg *msg;
-	size_t rtasize;
-
-	msg = NLMSG_DATA(hdr);
-	rta = RTM_RTA(msg);
-	rtasize = RTM_PAYLOAD(hdr);
-
-	if (route)
-	{
-		route->gtw = chunk_empty;
-		route->src = chunk_empty;
-		route->dst = chunk_empty;
-		route->dst_len = msg->rtm_dst_len;
-		route->table = msg->rtm_table;
-		route->oif = 0;
-		route->priority = 0;
-	}
-	else
-	{
-		INIT(route,
-			.dst_len = msg->rtm_dst_len,
-			.table = msg->rtm_table,
-		);
-	}
-
-	while (RTA_OK(rta, rtasize))
-	{
-		switch (rta->rta_type)
-		{
-			case RTA_PREFSRC:
-				route->src = chunk_create(RTA_DATA(rta), RTA_PAYLOAD(rta));
-				break;
-			case RTA_GATEWAY:
-				route->gtw = chunk_create(RTA_DATA(rta), RTA_PAYLOAD(rta));
-				break;
-			case RTA_DST:
-				route->dst = chunk_create(RTA_DATA(rta), RTA_PAYLOAD(rta));
-				break;
-			case RTA_OIF:
-				if (RTA_PAYLOAD(rta) == sizeof(route->oif))
-				{
-					route->oif = *(u_int32_t*)RTA_DATA(rta);
-				}
-				break;
-			case RTA_PRIORITY:
-				if (RTA_PAYLOAD(rta) == sizeof(route->priority))
-				{
-					route->priority = *(u_int32_t*)RTA_DATA(rta);
-				}
-				break;
-#ifdef HAVE_RTA_TABLE
-			case RTA_TABLE:
-				if (RTA_PAYLOAD(rta) == sizeof(route->table))
-				{
-					route->table = *(u_int32_t*)RTA_DATA(rta);
-				}
-				break;
-#endif /* HAVE_RTA_TABLE*/
-		}
-		rta = RTA_NEXT(rta, rtasize);
-	}
-	return route;
-}
-
-/**
- * Get a route: If "nexthop", the nexthop is returned. source addr otherwise.
- */
-static host_t *get_route(private_kernel_netlink_net_t *this, host_t *dest,
-						 int prefix, bool nexthop, host_t *candidate,
-						 u_int recursion)
-{
-	netlink_buf_t request;
-	struct nlmsghdr *hdr, *out, *current;
-	struct rtmsg *msg;
-	chunk_t chunk;
-	size_t len;
-	linked_list_t *routes;
-	rt_entry_t *route = NULL, *best = NULL;
-	enumerator_t *enumerator;
-	host_t *addr = NULL;
-	bool match_net;
-	int family;
-
-	if (recursion > MAX_ROUTE_RECURSION)
-	{
-		return NULL;
-	}
-	chunk = dest->get_address(dest);
-	len = chunk.len * 8;
-	prefix = prefix < 0 ? len : min(prefix, len);
-	match_net = prefix != len;
-
-	memset(&request, 0, sizeof(request));
-
-	family = dest->get_family(dest);
-	hdr = &request.hdr;
-	hdr->nlmsg_flags = NLM_F_REQUEST;
-	hdr->nlmsg_type = RTM_GETROUTE;
-	hdr->nlmsg_len = NLMSG_LENGTH(sizeof(struct rtmsg));
-
-	msg = NLMSG_DATA(hdr);
-	msg->rtm_family = family;
-	if (!match_net && this->rta_mark && this->routing_mark.value)
-	{
-		/* if our routing rule excludes packets with a certain mark we can
-		 * get the preferred route without having to dump all routes */
-		chunk = chunk_from_thing(this->routing_mark.value);
-		netlink_add_attribute(hdr, RTA_MARK, chunk, sizeof(request));
-	}
-	else if (family == AF_INET || this->rta_prefsrc_for_ipv6 ||
-			 this->routing_table || match_net)
-	{	/* kernels prior to 3.0 do not support RTA_PREFSRC for IPv6 routes.
-		 * as we want to ignore routes with virtual IPs we cannot use DUMP
-		 * if these routes are not installed in a separate table */
-		hdr->nlmsg_flags |= NLM_F_DUMP;
-	}
-	if (candidate)
-	{
-		chunk = candidate->get_address(candidate);
-		netlink_add_attribute(hdr, RTA_PREFSRC, chunk, sizeof(request));
-	}
-	if (!match_net)
-	{
-		chunk = dest->get_address(dest);
-		netlink_add_attribute(hdr, RTA_DST, chunk, sizeof(request));
-	}
-
-	if (this->socket->send(this->socket, hdr, &out, &len) != SUCCESS)
-	{
-		DBG2(DBG_KNL, "getting %s to reach %H/%d failed",
-			 nexthop ? "nexthop" : "address", dest, prefix);
-		return NULL;
-	}
-	routes = linked_list_create();
-	this->lock->read_lock(this->lock);
-
-	for (current = out; NLMSG_OK(current, len);
-		 current = NLMSG_NEXT(current, len))
-	{
-		switch (current->nlmsg_type)
-		{
-			case NLMSG_DONE:
-				break;
-			case RTM_NEWROUTE:
-			{
-				rt_entry_t *other;
-				uintptr_t table;
-
-				if (!route_usable(current))
-				{
-					continue;
-				}
-				route = parse_route(current, route);
-
-				table = (uintptr_t)route->table;
-				if (this->rt_exclude->find_first(this->rt_exclude, NULL,
-												 (void**)&table) == SUCCESS)
-				{	/* route is from an excluded routing table */
-					continue;
-				}
-				if (this->routing_table != 0 &&
-					route->table == this->routing_table)
-				{	/* route is from our own ipsec routing table */
-					continue;
-				}
-				if (route->oif && !is_interface_up_and_usable(this, route->oif))
-				{	/* interface is down */
-					continue;
-				}
-				if (!addr_in_subnet(chunk, prefix, route->dst, route->dst_len))
-				{	/* route destination does not contain dest */
-					continue;
-				}
-				if (route->src.ptr)
-				{	/* verify source address, if any */
-					host_t *src = host_create_from_chunk(msg->rtm_family,
-														 route->src, 0);
-					if (src && is_known_vip(this, src))
-					{	/* ignore routes installed by us */
-						src->destroy(src);
-						continue;
-					}
-					route->src_host = src;
-				}
-				/* insert route, sorted by priority and network prefix */
-				enumerator = routes->create_enumerator(routes);
-				while (enumerator->enumerate(enumerator, &other))
-				{
-					if (route->priority < other->priority)
-					{
-						break;
-					}
-					if (route->priority == other->priority &&
-						route->dst_len > other->dst_len)
-					{
-						break;
-					}
-				}
-				routes->insert_before(routes, enumerator, route);
-				enumerator->destroy(enumerator);
-				route = NULL;
-				continue;
-			}
-			default:
-				continue;
-		}
-		break;
-	}
-	if (route)
-	{
-		rt_entry_destroy(route);
-	}
-
-	/* now we have a list of routes matching dest, sorted by net prefix.
-	 * we will look for source addresses for these routes and select the one
-	 * with the preferred source address, if possible */
-	enumerator = routes->create_enumerator(routes);
-	while (enumerator->enumerate(enumerator, &route))
-	{
-		if (route->src_host)
-		{	/* got a source address with the route, if no preferred source
-			 * is given or it matches we are done, as this is the best route */
-			if (!candidate || candidate->ip_equals(candidate, route->src_host))
-			{
-				best = route;
-				break;
-			}
-			else if (route->oif)
-			{	/* no match yet, maybe it is assigned to the same interface */
-				host_t *src = get_interface_address(this, route->oif,
-											msg->rtm_family, dest, candidate);
-				if (src && src->ip_equals(src, candidate))
-				{
-					route->src_host->destroy(route->src_host);
-					route->src_host = src;
-					best = route;
-					break;
-				}
-				DESTROY_IF(src);
-			}
-			/* no luck yet with the source address. if this is the best (first)
-			 * route we store it as fallback in case we don't find a route with
-			 * the preferred source */
-			best = best ?: route;
-			continue;
-		}
-		if (route->oif)
-		{	/* no src, but an interface - get address from it */
-			route->src_host = get_interface_address(this, route->oif,
-											msg->rtm_family, dest, candidate);
-			if (route->src_host)
-			{	/* we handle this address the same as the one above */
-				if (!candidate ||
-					 candidate->ip_equals(candidate, route->src_host))
-				{
-					best = route;
-					break;
-				}
-				best = best ?: route;
-				continue;
-			}
-		}
-		if (route->gtw.ptr)
-		{	/* no src, no iface, but a gateway - lookup src to reach gtw */
-			host_t *gtw;
-
-			gtw = host_create_from_chunk(msg->rtm_family, route->gtw, 0);
-			if (gtw && !gtw->ip_equals(gtw, dest))
-			{
-				route->src_host = get_route(this, gtw, -1, FALSE, candidate,
-											recursion + 1);
-			}
-			DESTROY_IF(gtw);
-			if (route->src_host)
-			{	/* more of the same */
-				if (!candidate ||
-					 candidate->ip_equals(candidate, route->src_host))
-				{
-					best = route;
-					break;
-				}
-				best = best ?: route;
-			}
-		}
-	}
-	enumerator->destroy(enumerator);
-
-	if (nexthop)
-	{	/* nexthop lookup, return gateway if any */
-		if (best || routes->get_first(routes, (void**)&best) == SUCCESS)
-		{
-			addr = host_create_from_chunk(msg->rtm_family, best->gtw, 0);
-		}
-		if (!addr && !match_net)
-		{	/* fallback to destination address */
-			addr = dest->clone(dest);
-		}
-	}
-	else
-	{
-		if (best)
-		{
-			addr = best->src_host->clone(best->src_host);
-		}
-	}
-	this->lock->unlock(this->lock);
-	routes->destroy_function(routes, (void*)rt_entry_destroy);
-	free(out);
-
-	if (addr)
-	{
-		DBG2(DBG_KNL, "using %H as %s to reach %H/%d", addr,
-			 nexthop ? "nexthop" : "address", dest, prefix);
-	}
-	else if (!recursion)
-	{
-		DBG2(DBG_KNL, "no %s found to reach %H/%d",
-			 nexthop ? "nexthop" : "address", dest, prefix);
-	}
-	return addr;
-}
-
-METHOD(kernel_net_t, get_source_addr, host_t*,
-	private_kernel_netlink_net_t *this, host_t *dest, host_t *src)
-{
-	return get_route(this, dest, -1, FALSE, src, 0);
-}
-
-METHOD(kernel_net_t, get_nexthop, host_t*,
-	private_kernel_netlink_net_t *this, host_t *dest, int prefix, host_t *src)
-{
-	return get_route(this, dest, prefix, TRUE, src, 0);
-}
-
-/**
- * Manages the creation and deletion of ip addresses on an interface.
- * By setting the appropriate nlmsg_type, the ip will be set or unset.
- */
-static status_t manage_ipaddr(private_kernel_netlink_net_t *this, int nlmsg_type,
-							  int flags, int if_index, host_t *ip, int prefix)
-{
-	netlink_buf_t request;
-	struct nlmsghdr *hdr;
-	struct ifaddrmsg *msg;
-	chunk_t chunk;
-
-	memset(&request, 0, sizeof(request));
-
-	chunk = ip->get_address(ip);
-
-	hdr = &request.hdr;
-	hdr->nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK | flags;
-	hdr->nlmsg_type = nlmsg_type;
-	hdr->nlmsg_len = NLMSG_LENGTH(sizeof(struct ifaddrmsg));
-
-	msg = NLMSG_DATA(hdr);
-	msg->ifa_family = ip->get_family(ip);
-	msg->ifa_flags = 0;
-	msg->ifa_prefixlen = prefix < 0 ? chunk.len * 8 : prefix;
-	msg->ifa_scope = RT_SCOPE_UNIVERSE;
-	msg->ifa_index = if_index;
-
-	netlink_add_attribute(hdr, IFA_LOCAL, chunk, sizeof(request));
-
-	if (ip->get_family(ip) == AF_INET6 && this->rta_prefsrc_for_ipv6)
-	{	/* if source routes are possible we let the virtual IP get deprecated
-		 * immediately (but mark it as valid forever) so it gets only used if
-		 * forced by our route, and not by the default IPv6 address selection */
-		struct ifa_cacheinfo cache = {
-			.ifa_valid = 0xFFFFFFFF,
-			.ifa_prefered = 0,
-		};
-		netlink_add_attribute(hdr, IFA_CACHEINFO, chunk_from_thing(cache),
-							  sizeof(request));
-	}
-	return this->socket->send_ack(this->socket, hdr);
-}
-
-METHOD(kernel_net_t, add_ip, status_t,
-	private_kernel_netlink_net_t *this, host_t *virtual_ip, int prefix,
-	char *iface_name)
-{
-	addr_map_entry_t *entry, lookup = {
-		.ip = virtual_ip,
-	};
-	iface_entry_t *iface = NULL;
-
-	if (!this->install_virtual_ip)
-	{	/* disabled by config */
-		return SUCCESS;
-	}
-
-	this->lock->write_lock(this->lock);
-	/* the virtual IP might actually be installed as regular IP, in which case
-	 * we don't track it as virtual IP */
-	entry = this->addrs->get_match(this->addrs, &lookup,
-								  (void*)addr_map_entry_match);
-	if (!entry)
-	{	/* otherwise it might already be installed as virtual IP */
-		entry = this->vips->get_match(this->vips, &lookup,
-									 (void*)addr_map_entry_match);
-		if (entry)
-		{	/* the vip we found can be in one of three states: 1) installed and
-			 * ready, 2) just added by another thread, but not yet confirmed to
-			 * be installed by the kernel, 3) just deleted, but not yet gone.
-			 * Then while we wait below, several things could happen (as we
-			 * release the lock).  For instance, the interface could disappear,
-			 * or the IP is finally deleted, and it reappears on a different
-			 * interface. All these cases are handled by the call below. */
-			while (!is_vip_installed_or_gone(this, virtual_ip, &entry))
-			{
-				this->condvar->wait(this->condvar, this->lock);
-			}
-			if (entry)
-			{
-				entry->addr->refcount++;
-			}
-		}
-	}
-	if (entry)
-	{
-		DBG2(DBG_KNL, "virtual IP %H is already installed on %s", virtual_ip,
-			 entry->iface->ifname);
-		this->lock->unlock(this->lock);
-		return SUCCESS;
-	}
-	/* try to find the target interface, either by config or via src ip */
-	if (!this->install_virtual_ip_on ||
-		 this->ifaces->find_first(this->ifaces, (void*)iface_entry_by_name,
-						(void**)&iface, this->install_virtual_ip_on) != SUCCESS)
-	{
-		if (this->ifaces->find_first(this->ifaces, (void*)iface_entry_by_name,
-									 (void**)&iface, iface_name) != SUCCESS)
-		{	/* if we don't find the requested interface we just use the first */
-			this->ifaces->get_first(this->ifaces, (void**)&iface);
-		}
-	}
-	if (iface)
-	{
-		addr_entry_t *addr;
-		char *ifname;
-		int ifi;
-
-		INIT(addr,
-			.ip = virtual_ip->clone(virtual_ip),
-			.refcount = 1,
-			.scope = RT_SCOPE_UNIVERSE,
-		);
-		iface->addrs->insert_last(iface->addrs, addr);
-		addr_map_entry_add(this->vips, addr, iface);
-		ifi = iface->ifindex;
-		this->lock->unlock(this->lock);
-		if (manage_ipaddr(this, RTM_NEWADDR, NLM_F_CREATE | NLM_F_EXCL,
-						  ifi, virtual_ip, prefix) == SUCCESS)
-		{
-			this->lock->write_lock(this->lock);
-			while (!is_vip_installed_or_gone(this, virtual_ip, &entry))
-			{	/* wait until address appears */
-				this->condvar->wait(this->condvar, this->lock);
-			}
-			if (entry)
-			{	/* we fail if the interface got deleted in the meantime */
-				ifname = strdup(entry->iface->ifname);
-				this->lock->unlock(this->lock);
-				DBG2(DBG_KNL, "virtual IP %H installed on %s",
-					 virtual_ip, ifname);
-				/* during IKEv1 reauthentication, children get moved from
-				 * old the new SA before the virtual IP is available. This
-				 * kills the route for our virtual IP, reinstall. */
-				queue_route_reinstall(this, ifname);
-				return SUCCESS;
-			}
-			this->lock->unlock(this->lock);
-		}
-		DBG1(DBG_KNL, "adding virtual IP %H failed", virtual_ip);
-		return FAILED;
-	}
-	this->lock->unlock(this->lock);
-	DBG1(DBG_KNL, "no interface available, unable to install virtual IP %H",
-		 virtual_ip);
-	return FAILED;
-}
-
-METHOD(kernel_net_t, del_ip, status_t,
-	private_kernel_netlink_net_t *this, host_t *virtual_ip, int prefix,
-	bool wait)
-{
-	addr_map_entry_t *entry, lookup = {
-		.ip = virtual_ip,
-	};
-
-	if (!this->install_virtual_ip)
-	{	/* disabled by config */
-		return SUCCESS;
-	}
-
-	DBG2(DBG_KNL, "deleting virtual IP %H", virtual_ip);
-
-	this->lock->write_lock(this->lock);
-	entry = this->vips->get_match(this->vips, &lookup,
-								 (void*)addr_map_entry_match);
-	if (!entry)
-	{	/* we didn't install this IP as virtual IP */
-		entry = this->addrs->get_match(this->addrs, &lookup,
-									  (void*)addr_map_entry_match);
-		if (entry)
-		{
-			DBG2(DBG_KNL, "not deleting existing IP %H on %s", virtual_ip,
-				 entry->iface->ifname);
-			this->lock->unlock(this->lock);
-			return SUCCESS;
-		}
-		DBG2(DBG_KNL, "virtual IP %H not cached, unable to delete", virtual_ip);
-		this->lock->unlock(this->lock);
-		return FAILED;
-	}
-	if (entry->addr->refcount == 1)
-	{
-		status_t status;
-		int ifi;
-
-		/* we set this flag so that threads calling add_ip will block and wait
-		 * until the entry is gone, also so we can wait below */
-		entry->addr->installed = FALSE;
-		ifi = entry->iface->ifindex;
-		this->lock->unlock(this->lock);
-		status = manage_ipaddr(this, RTM_DELADDR, 0, ifi, virtual_ip, prefix);
-		if (status == SUCCESS && wait)
-		{	/* wait until the address is really gone */
-			this->lock->write_lock(this->lock);
-			while (is_known_vip(this, virtual_ip))
-			{
-				this->condvar->wait(this->condvar, this->lock);
-			}
-			this->lock->unlock(this->lock);
-		}
-		return status;
-	}
-	else
-	{
-		entry->addr->refcount--;
-	}
-	DBG2(DBG_KNL, "virtual IP %H used by other SAs, not deleting",
-		 virtual_ip);
-	this->lock->unlock(this->lock);
-	return SUCCESS;
-}
-
-/**
- * Manages source routes in the routing table.
- * By setting the appropriate nlmsg_type, the route gets added or removed.
- */
-static status_t manage_srcroute(private_kernel_netlink_net_t *this,
-								int nlmsg_type, int flags, chunk_t dst_net,
-								u_int8_t prefixlen, host_t *gateway,
-								host_t *src_ip, char *if_name)
-{
-	netlink_buf_t request;
-	struct nlmsghdr *hdr;
-	struct rtmsg *msg;
-	struct rtattr *rta;
-	int ifindex;
-	chunk_t chunk;
-
-	/* if route is 0.0.0.0/0, we can't install it, as it would
-	 * overwrite the default route. Instead, we add two routes:
-	 * 0.0.0.0/1 and 128.0.0.0/1 */
-	if (this->routing_table == 0 && prefixlen == 0)
-	{
-		chunk_t half_net;
-		u_int8_t half_prefixlen;
-		status_t status;
-
-		half_net = chunk_alloca(dst_net.len);
-		memset(half_net.ptr, 0, half_net.len);
-		half_prefixlen = 1;
-
-		status = manage_srcroute(this, nlmsg_type, flags, half_net, half_prefixlen,
-					gateway, src_ip, if_name);
-		half_net.ptr[0] |= 0x80;
-		status = manage_srcroute(this, nlmsg_type, flags, half_net, half_prefixlen,
-					gateway, src_ip, if_name);
-		return status;
-	}
-
-	memset(&request, 0, sizeof(request));
-
-	hdr = &request.hdr;
-	hdr->nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK | flags;
-	hdr->nlmsg_type = nlmsg_type;
-	hdr->nlmsg_len = NLMSG_LENGTH(sizeof(struct rtmsg));
-
-	msg = NLMSG_DATA(hdr);
-	msg->rtm_family = src_ip->get_family(src_ip);
-	msg->rtm_dst_len = prefixlen;
-	msg->rtm_table = this->routing_table;
-	msg->rtm_protocol = RTPROT_STATIC;
-	msg->rtm_type = RTN_UNICAST;
-	msg->rtm_scope = RT_SCOPE_UNIVERSE;
-
-	netlink_add_attribute(hdr, RTA_DST, dst_net, sizeof(request));
-	chunk = src_ip->get_address(src_ip);
-	netlink_add_attribute(hdr, RTA_PREFSRC, chunk, sizeof(request));
-	if (gateway && gateway->get_family(gateway) == src_ip->get_family(src_ip))
-	{
-		chunk = gateway->get_address(gateway);
-		netlink_add_attribute(hdr, RTA_GATEWAY, chunk, sizeof(request));
-	}
-	ifindex = get_interface_index(this, if_name);
-	chunk.ptr = (char*)&ifindex;
-	chunk.len = sizeof(ifindex);
-	netlink_add_attribute(hdr, RTA_OIF, chunk, sizeof(request));
-
-	if (this->mtu || this->mss)
-	{
-		chunk = chunk_alloca(RTA_LENGTH((sizeof(struct rtattr) +
-										 sizeof(u_int32_t)) * 2));
-		chunk.len = 0;
-		rta = (struct rtattr*)chunk.ptr;
-		if (this->mtu)
-		{
-			rta->rta_type = RTAX_MTU;
-			rta->rta_len = RTA_LENGTH(sizeof(u_int32_t));
-			memcpy(RTA_DATA(rta), &this->mtu, sizeof(u_int32_t));
-			chunk.len = rta->rta_len;
-		}
-		if (this->mss)
-		{
-			rta = (struct rtattr*)(chunk.ptr + RTA_ALIGN(chunk.len));
-			rta->rta_type = RTAX_ADVMSS;
-			rta->rta_len = RTA_LENGTH(sizeof(u_int32_t));
-			memcpy(RTA_DATA(rta), &this->mss, sizeof(u_int32_t));
-			chunk.len = RTA_ALIGN(chunk.len) + rta->rta_len;
-		}
-		netlink_add_attribute(hdr, RTA_METRICS, chunk, sizeof(request));
-	}
-
-	return this->socket->send_ack(this->socket, hdr);
-}
-
-METHOD(kernel_net_t, add_route, status_t,
-	private_kernel_netlink_net_t *this, chunk_t dst_net, u_int8_t prefixlen,
-	host_t *gateway, host_t *src_ip, char *if_name)
-{
-	status_t status;
-	route_entry_t *found, route = {
-		.dst_net = dst_net,
-		.prefixlen = prefixlen,
-		.gateway = gateway,
-		.src_ip = src_ip,
-		.if_name = if_name,
-	};
-
-	this->routes_lock->lock(this->routes_lock);
-	found = this->routes->get(this->routes, &route);
-	if (found)
-	{
-		this->routes_lock->unlock(this->routes_lock);
-		return ALREADY_DONE;
-	}
-	status = manage_srcroute(this, RTM_NEWROUTE, NLM_F_CREATE | NLM_F_EXCL,
-							 dst_net, prefixlen, gateway, src_ip, if_name);
-	if (status == SUCCESS)
-	{
-		found = route_entry_clone(&route);
-		this->routes->put(this->routes, found, found);
-	}
-	this->routes_lock->unlock(this->routes_lock);
-	return status;
-}
-
-METHOD(kernel_net_t, del_route, status_t,
-	private_kernel_netlink_net_t *this, chunk_t dst_net, u_int8_t prefixlen,
-	host_t *gateway, host_t *src_ip, char *if_name)
-{
-	status_t status;
-	route_entry_t *found, route = {
-		.dst_net = dst_net,
-		.prefixlen = prefixlen,
-		.gateway = gateway,
-		.src_ip = src_ip,
-		.if_name = if_name,
-	};
-
-	this->routes_lock->lock(this->routes_lock);
-	found = this->routes->get(this->routes, &route);
-	if (!found)
-	{
-		this->routes_lock->unlock(this->routes_lock);
-		return NOT_FOUND;
-	}
-	this->routes->remove(this->routes, found);
-	route_entry_destroy(found);
-	status = manage_srcroute(this, RTM_DELROUTE, 0, dst_net, prefixlen,
-							 gateway, src_ip, if_name);
-	this->routes_lock->unlock(this->routes_lock);
-	return status;
-}
-
-/**
- * Initialize a list of local addresses.
- */
-static status_t init_address_list(private_kernel_netlink_net_t *this)
-{
-	netlink_buf_t request;
-	struct nlmsghdr *out, *current, *in;
-	struct rtgenmsg *msg;
-	size_t len;
-	enumerator_t *ifaces, *addrs;
-	iface_entry_t *iface;
-	addr_entry_t *addr;
-
-	DBG2(DBG_KNL, "known interfaces and IP addresses:");
-
-	memset(&request, 0, sizeof(request));
-
-	in = &request.hdr;
-	in->nlmsg_len = NLMSG_LENGTH(sizeof(struct rtgenmsg));
-	in->nlmsg_flags = NLM_F_REQUEST | NLM_F_MATCH | NLM_F_ROOT;
-	msg = NLMSG_DATA(in);
-	msg->rtgen_family = AF_UNSPEC;
-
-	/* get all links */
-	in->nlmsg_type = RTM_GETLINK;
-	if (this->socket->send(this->socket, in, &out, &len) != SUCCESS)
-	{
-		return FAILED;
-	}
-	current = out;
-	while (NLMSG_OK(current, len))
-	{
-		switch (current->nlmsg_type)
-		{
-			case NLMSG_DONE:
-				break;
-			case RTM_NEWLINK:
-				process_link(this, current, FALSE);
-				/* fall through */
-			default:
-				current = NLMSG_NEXT(current, len);
-				continue;
-		}
-		break;
-	}
-	free(out);
-
-	/* get all interface addresses */
-	in->nlmsg_type = RTM_GETADDR;
-	if (this->socket->send(this->socket, in, &out, &len) != SUCCESS)
-	{
-		return FAILED;
-	}
-	current = out;
-	while (NLMSG_OK(current, len))
-	{
-		switch (current->nlmsg_type)
-		{
-			case NLMSG_DONE:
-				break;
-			case RTM_NEWADDR:
-				process_addr(this, current, FALSE);
-				/* fall through */
-			default:
-				current = NLMSG_NEXT(current, len);
-				continue;
-		}
-		break;
-	}
-	free(out);
-
-	this->lock->read_lock(this->lock);
-	ifaces = this->ifaces->create_enumerator(this->ifaces);
-	while (ifaces->enumerate(ifaces, &iface))
-	{
-		if (iface_entry_up_and_usable(iface))
-		{
-			DBG2(DBG_KNL, "  %s", iface->ifname);
-			addrs = iface->addrs->create_enumerator(iface->addrs);
-			while (addrs->enumerate(addrs, (void**)&addr))
-			{
-				DBG2(DBG_KNL, "    %H", addr->ip);
-			}
-			addrs->destroy(addrs);
-		}
-	}
-	ifaces->destroy(ifaces);
-	this->lock->unlock(this->lock);
-	return SUCCESS;
-}
-
-/**
- * create or delete a rule to use our routing table
- */
-static status_t manage_rule(private_kernel_netlink_net_t *this, int nlmsg_type,
-							int family, u_int32_t table, u_int32_t prio)
-{
-	netlink_buf_t request;
-	struct nlmsghdr *hdr;
-	struct rtmsg *msg;
-	chunk_t chunk;
-	char *fwmark;
-
-	memset(&request, 0, sizeof(request));
-	hdr = &request.hdr;
-	hdr->nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK;
-	hdr->nlmsg_type = nlmsg_type;
-	if (nlmsg_type == RTM_NEWRULE)
-	{
-		hdr->nlmsg_flags |= NLM_F_CREATE | NLM_F_EXCL;
-	}
-	hdr->nlmsg_len = NLMSG_LENGTH(sizeof(struct rtmsg));
-
-	msg = NLMSG_DATA(hdr);
-	msg->rtm_table = table;
-	msg->rtm_family = family;
-	msg->rtm_protocol = RTPROT_BOOT;
-	msg->rtm_scope = RT_SCOPE_UNIVERSE;
-	msg->rtm_type = RTN_UNICAST;
-
-	chunk = chunk_from_thing(prio);
-	netlink_add_attribute(hdr, RTA_PRIORITY, chunk, sizeof(request));
-
-	fwmark = lib->settings->get_str(lib->settings,
-							"%s.plugins.kernel-netlink.fwmark", NULL, lib->ns);
-	if (fwmark)
-	{
-#ifdef HAVE_LINUX_FIB_RULES_H
-		mark_t mark;
-
-		if (fwmark[0] == '!')
-		{
-			msg->rtm_flags |= FIB_RULE_INVERT;
-			fwmark++;
-		}
-		if (mark_from_string(fwmark, &mark))
-		{
-			chunk = chunk_from_thing(mark.value);
-			netlink_add_attribute(hdr, FRA_FWMARK, chunk, sizeof(request));
-			chunk = chunk_from_thing(mark.mask);
-			netlink_add_attribute(hdr, FRA_FWMASK, chunk, sizeof(request));
-			if (msg->rtm_flags & FIB_RULE_INVERT)
-			{
-				this->routing_mark = mark;
-			}
-		}
-#else
-		DBG1(DBG_KNL, "setting firewall mark on routing rule is not supported");
-#endif
-	}
-	return this->socket->send_ack(this->socket, hdr);
-}
-
-/**
- * check for kernel features (currently only via version number)
- */
-static void check_kernel_features(private_kernel_netlink_net_t *this)
-{
-	struct utsname utsname;
-	int a, b, c;
-
-	if (uname(&utsname) == 0)
-	{
-		switch(sscanf(utsname.release, "%d.%d.%d", &a, &b, &c))
-		{
-			case 3:
-				if (a == 2)
-				{
-					if (b == 6 && c >= 36)
-					{
-						this->rta_mark = TRUE;
-					}
-					DBG2(DBG_KNL, "detected Linux %d.%d.%d, no support for "
-						 "RTA_PREFSRC for IPv6 routes", a, b, c);
-					break;
-				}
-				/* fall-through */
-			case 2:
-				/* only 3.x+ uses two part version numbers */
-				this->rta_prefsrc_for_ipv6 = TRUE;
-				this->rta_mark = TRUE;
-				break;
-			default:
-				break;
-		}
-	}
-}
-
-/**
- * Destroy an address to iface map
- */
-static void addr_map_destroy(hashtable_t *map)
-{
-	enumerator_t *enumerator;
-	addr_map_entry_t *addr;
-
-	enumerator = map->create_enumerator(map);
-	while (enumerator->enumerate(enumerator, NULL, (void**)&addr))
-	{
-		free(addr);
-	}
-	enumerator->destroy(enumerator);
-	map->destroy(map);
-}
-
-METHOD(kernel_net_t, destroy, void,
-	private_kernel_netlink_net_t *this)
-{
-	enumerator_t *enumerator;
-	route_entry_t *route;
-
-	if (this->routing_table)
-	{
-		manage_rule(this, RTM_DELRULE, AF_INET, this->routing_table,
-					this->routing_table_prio);
-		manage_rule(this, RTM_DELRULE, AF_INET6, this->routing_table,
-					this->routing_table_prio);
-	}
-	if (this->socket_events > 0)
-	{
-		lib->watcher->remove(lib->watcher, this->socket_events);
-		close(this->socket_events);
-	}
-	enumerator = this->routes->create_enumerator(this->routes);
-	while (enumerator->enumerate(enumerator, NULL, (void**)&route))
-	{
-		manage_srcroute(this, RTM_DELROUTE, 0, route->dst_net, route->prefixlen,
-						route->gateway, route->src_ip, route->if_name);
-		route_entry_destroy(route);
-	}
-	enumerator->destroy(enumerator);
-	this->routes->destroy(this->routes);
-	this->routes_lock->destroy(this->routes_lock);
-	DESTROY_IF(this->socket);
-
-	net_changes_clear(this);
-	this->net_changes->destroy(this->net_changes);
-	this->net_changes_lock->destroy(this->net_changes_lock);
-
-	addr_map_destroy(this->addrs);
-	addr_map_destroy(this->vips);
-
-	this->ifaces->destroy_function(this->ifaces, (void*)iface_entry_destroy);
-	this->rt_exclude->destroy(this->rt_exclude);
-	this->roam_lock->destroy(this->roam_lock);
-	this->condvar->destroy(this->condvar);
-	this->lock->destroy(this->lock);
-	free(this);
-}
-
-/*
- * Described in header.
- */
-kernel_netlink_net_t *kernel_netlink_net_create()
-{
-	private_kernel_netlink_net_t *this;
-	enumerator_t *enumerator;
-	bool register_for_events = TRUE;
-	char *exclude;
-
-	INIT(this,
-		.public = {
-			.interface = {
-				.get_interface = _get_interface_name,
-				.create_address_enumerator = _create_address_enumerator,
-				.get_source_addr = _get_source_addr,
-				.get_nexthop = _get_nexthop,
-				.add_ip = _add_ip,
-				.del_ip = _del_ip,
-				.add_route = _add_route,
-				.del_route = _del_route,
-				.destroy = _destroy,
-			},
-		},
-		.socket = netlink_socket_create(NETLINK_ROUTE, rt_msg_names,
-			lib->settings->get_bool(lib->settings,
-				"%s.plugins.kernel-netlink.parallel_route", FALSE, lib->ns)),
-		.rt_exclude = linked_list_create(),
-		.routes = hashtable_create((hashtable_hash_t)route_entry_hash,
-								   (hashtable_equals_t)route_entry_equals, 16),
-		.net_changes = hashtable_create(
-								   (hashtable_hash_t)net_change_hash,
-								   (hashtable_equals_t)net_change_equals, 16),
-		.addrs = hashtable_create(
-								(hashtable_hash_t)addr_map_entry_hash,
-								(hashtable_equals_t)addr_map_entry_equals, 16),
-		.vips = hashtable_create((hashtable_hash_t)addr_map_entry_hash,
-								 (hashtable_equals_t)addr_map_entry_equals, 16),
-		.routes_lock = mutex_create(MUTEX_TYPE_DEFAULT),
-		.net_changes_lock = mutex_create(MUTEX_TYPE_DEFAULT),
-		.ifaces = linked_list_create(),
-		.lock = rwlock_create(RWLOCK_TYPE_DEFAULT),
-		.condvar = rwlock_condvar_create(),
-		.roam_lock = spinlock_create(),
-		.routing_table = lib->settings->get_int(lib->settings,
-						"%s.routing_table", ROUTING_TABLE, lib->ns),
-		.routing_table_prio = lib->settings->get_int(lib->settings,
-						"%s.routing_table_prio", ROUTING_TABLE_PRIO, lib->ns),
-		.process_route = lib->settings->get_bool(lib->settings,
-						"%s.process_route", TRUE, lib->ns),
-		.install_virtual_ip = lib->settings->get_bool(lib->settings,
-						"%s.install_virtual_ip", TRUE, lib->ns),
-		.install_virtual_ip_on = lib->settings->get_str(lib->settings,
-						"%s.install_virtual_ip_on", NULL, lib->ns),
-		.prefer_temporary_addrs = lib->settings->get_bool(lib->settings,
-						"%s.prefer_temporary_addrs", FALSE, lib->ns),
-		.roam_events = lib->settings->get_bool(lib->settings,
-						"%s.plugins.kernel-netlink.roam_events", TRUE, lib->ns),
-		.mtu = lib->settings->get_int(lib->settings,
-						"%s.plugins.kernel-netlink.mtu", 0, lib->ns),
-		.mss = lib->settings->get_int(lib->settings,
-						"%s.plugins.kernel-netlink.mss", 0, lib->ns),
-	);
-	timerclear(&this->last_route_reinstall);
-	timerclear(&this->next_roam);
-
-	check_kernel_features(this);
-
-	if (streq(lib->ns, "starter"))
-	{	/* starter has no threads, so we do not register for kernel events */
-		register_for_events = FALSE;
-	}
-
-	exclude = lib->settings->get_str(lib->settings,
-									 "%s.ignore_routing_tables", NULL, lib->ns);
-	if (exclude)
-	{
-		char *token;
-		uintptr_t table;
-
-		enumerator = enumerator_create_token(exclude, " ", " ");
-		while (enumerator->enumerate(enumerator, &token))
-		{
-			errno = 0;
-			table = strtoul(token, NULL, 10);
-
-			if (errno == 0)
-			{
-				this->rt_exclude->insert_last(this->rt_exclude, (void*)table);
-			}
-		}
-		enumerator->destroy(enumerator);
-	}
-
-	if (register_for_events)
-	{
-		struct sockaddr_nl addr;
-
-		memset(&addr, 0, sizeof(addr));
-		addr.nl_family = AF_NETLINK;
-
-		/* create and bind RT socket for events (address/interface/route changes) */
-		this->socket_events = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
-		if (this->socket_events < 0)
-		{
-			DBG1(DBG_KNL, "unable to create RT event socket");
-			destroy(this);
-			return NULL;
-		}
-		addr.nl_groups = RTMGRP_IPV4_IFADDR | RTMGRP_IPV6_IFADDR |
-						 RTMGRP_IPV4_ROUTE | RTMGRP_IPV6_ROUTE | RTMGRP_LINK;
-		if (bind(this->socket_events, (struct sockaddr*)&addr, sizeof(addr)))
-		{
-			DBG1(DBG_KNL, "unable to bind RT event socket");
-			destroy(this);
-			return NULL;
-		}
-
-		lib->watcher->add(lib->watcher, this->socket_events, WATCHER_READ,
-						  (watcher_cb_t)receive_events, this);
-	}
-
-	if (init_address_list(this) != SUCCESS)
-	{
-		DBG1(DBG_KNL, "unable to get interface list");
-		destroy(this);
-		return NULL;
-	}
-
-	if (this->routing_table)
-	{
-		if (manage_rule(this, RTM_NEWRULE, AF_INET, this->routing_table,
-						this->routing_table_prio) != SUCCESS)
-		{
-			DBG1(DBG_KNL, "unable to create IPv4 routing table rule");
-		}
-		if (manage_rule(this, RTM_NEWRULE, AF_INET6, this->routing_table,
-						this->routing_table_prio) != SUCCESS)
-		{
-			DBG1(DBG_KNL, "unable to create IPv6 routing table rule");
-		}
-	}
-
-	return &this->public;
-}
diff --git a/src/libhydra/plugins/kernel_netlink/kernel_netlink_net.h b/src/libhydra/plugins/kernel_netlink/kernel_netlink_net.h
deleted file mode 100644
index ff9831d3c..000000000
--- a/src/libhydra/plugins/kernel_netlink/kernel_netlink_net.h
+++ /dev/null
@@ -1,46 +0,0 @@
-/*
- * Copyright (C) 2008 Tobias Brunner
- * 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_netlink_net_i kernel_netlink_net
- * @{ @ingroup kernel_netlink
- */
-
-#ifndef KERNEL_NETLINK_NET_H_
-#define KERNEL_NETLINK_NET_H_
-
-#include <kernel/kernel_net.h>
-
-typedef struct kernel_netlink_net_t kernel_netlink_net_t;
-
-/**
- * Implementation of the kernel network interface using Netlink.
- */
-struct kernel_netlink_net_t {
-
-	/**
-	 * Implements kernel_net_t interface
-	 */
-	kernel_net_t interface;
-};
-
-/**
- * Create a netlink kernel network interface instance.
- *
- * @return			kernel_netlink_net_t instance
- */
-kernel_netlink_net_t *kernel_netlink_net_create();
-
-#endif /** KERNEL_NETLINK_NET_H_ @}*/
diff --git a/src/libhydra/plugins/kernel_netlink/kernel_netlink_plugin.c b/src/libhydra/plugins/kernel_netlink/kernel_netlink_plugin.c
deleted file mode 100644
index 8d5a0d5e8..000000000
--- a/src/libhydra/plugins/kernel_netlink/kernel_netlink_plugin.c
+++ /dev/null
@@ -1,87 +0,0 @@
-/*
- * Copyright (C) 2008 Tobias Brunner
- * 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.
- */
-
-
-#include "kernel_netlink_plugin.h"
-
-#include "kernel_netlink_ipsec.h"
-#include "kernel_netlink_net.h"
-
-#include <hydra.h>
-
-typedef struct private_kernel_netlink_plugin_t private_kernel_netlink_plugin_t;
-
-/**
- * private data of kernel netlink plugin
- */
-struct private_kernel_netlink_plugin_t {
-	/**
-	 * implements plugin interface
-	 */
-	kernel_netlink_plugin_t public;
-};
-
-METHOD(plugin_t, get_name, char*,
-	private_kernel_netlink_plugin_t *this)
-{
-	return "kernel-netlink";
-}
-
-METHOD(plugin_t, get_features, int,
-	private_kernel_netlink_plugin_t *this, plugin_feature_t *features[])
-{
-	static plugin_feature_t f[] = {
-		PLUGIN_CALLBACK(kernel_ipsec_register, kernel_netlink_ipsec_create),
-			PLUGIN_PROVIDE(CUSTOM, "kernel-ipsec"),
-		PLUGIN_CALLBACK(kernel_net_register, kernel_netlink_net_create),
-			PLUGIN_PROVIDE(CUSTOM, "kernel-net"),
-	};
-	*features = f;
-	return countof(f);
-}
-
-METHOD(plugin_t, destroy, void,
-	private_kernel_netlink_plugin_t *this)
-{
-	free(this);
-}
-
-/*
- * see header file
- */
-plugin_t *kernel_netlink_plugin_create()
-{
-	private_kernel_netlink_plugin_t *this;
-
-	if (!lib->caps->keep(lib->caps, CAP_NET_ADMIN))
-	{	/* required to bind/use XFRM sockets / create/modify routing tables, but
-		 * not if only the read-only parts of kernel-netlink-net are used, so
-		 * we don't fail here */
-		DBG1(DBG_KNL, "kernel-netlink plugin might require CAP_NET_ADMIN "
-			 "capability");
-	}
-
-	INIT(this,
-		.public = {
-			.plugin = {
-				.get_name = _get_name,
-				.get_features = _get_features,
-				.destroy = _destroy,
-			},
-		},
-	);
-
-	return &this->public.plugin;
-}
diff --git a/src/libhydra/plugins/kernel_netlink/kernel_netlink_plugin.h b/src/libhydra/plugins/kernel_netlink/kernel_netlink_plugin.h
deleted file mode 100644
index a795486ca..000000000
--- a/src/libhydra/plugins/kernel_netlink/kernel_netlink_plugin.h
+++ /dev/null
@@ -1,42 +0,0 @@
-/*
- * Copyright (C) 2008 Tobias Brunner
- * 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_netlink kernel_netlink
- * @ingroup hplugins
- *
- * @defgroup kernel_netlink_plugin kernel_netlink_plugin
- * @{ @ingroup kernel_netlink
- */
-
-#ifndef KERNEL_NETLINK_PLUGIN_H_
-#define KERNEL_NETLINK_PLUGIN_H_
-
-#include <plugins/plugin.h>
-
-typedef struct kernel_netlink_plugin_t kernel_netlink_plugin_t;
-
-/**
- * netlink kernel interface plugin
- */
-struct kernel_netlink_plugin_t {
-
-	/**
-	 * implements plugin interface
-	 */
-	plugin_t plugin;
-};
-
-#endif /** KERNEL_NETLINK_PLUGIN_H_ @}*/
diff --git a/src/libhydra/plugins/kernel_netlink/kernel_netlink_shared.c b/src/libhydra/plugins/kernel_netlink/kernel_netlink_shared.c
deleted file mode 100644
index f7ce992a3..000000000
--- a/src/libhydra/plugins/kernel_netlink/kernel_netlink_shared.c
+++ /dev/null
@@ -1,655 +0,0 @@
-/*
- * Copyright (C) 2014 Martin Willi
- * Copyright (C) 2014 revosec AG
- * Copyright (C) 2008 Tobias Brunner
- * 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.
- */
-
-#include <sys/socket.h>
-#include <linux/netlink.h>
-#include <linux/rtnetlink.h>
-#include <linux/xfrm.h>
-#include <errno.h>
-#include <unistd.h>
-
-#include "kernel_netlink_shared.h"
-
-#include <utils/debug.h>
-#include <threading/mutex.h>
-#include <threading/condvar.h>
-#include <collections/array.h>
-#include <collections/hashtable.h>
-
-typedef struct private_netlink_socket_t private_netlink_socket_t;
-
-/**
- * Private variables and functions of netlink_socket_t class.
- */
-struct private_netlink_socket_t {
-
-	/**
-	 * public part of the netlink_socket_t object.
-	 */
-	netlink_socket_t public;
-
-	/**
-	 * mutex to lock access entries
-	 */
-	mutex_t *mutex;
-
-	/**
-	 * Netlink request entries currently active, uintptr_t seq => entry_t
-	 */
-	hashtable_t *entries;
-
-	/**
-	 * Current sequence number for Netlink requests
-	 */
-	refcount_t seq;
-
-	/**
-	 * netlink socket
-	 */
-	int socket;
-
-	/**
-	 * Netlink protocol
-	 */
-	int protocol;
-
-	/**
-	 * Enum names for Netlink messages
-	 */
-	enum_name_t *names;
-
-	/**
-	 * Timeout for Netlink replies, in ms
-	 */
-	u_int timeout;
-
-	/**
-	 * Number of times to repeat timed out queries
-	 */
-	u_int retries;
-
-	/**
-	 * Buffer size for received Netlink messages
-	 */
-	u_int buflen;
-
-	/**
-	 * Use parallel netlink queries
-	 */
-	bool parallel;
-
-	/**
-	 * Ignore errors potentially resulting from a retransmission
-	 */
-	bool ignore_retransmit_errors;
-};
-
-/**
- * #definable hook to simulate request message loss
- */
-#ifdef NETLINK_MSG_LOSS_HOOK
-bool NETLINK_MSG_LOSS_HOOK(struct nlmsghdr *msg);
-#define msg_loss_hook(msg) NETLINK_MSG_LOSS_HOOK(msg)
-#else
-#define msg_loss_hook(msg) FALSE
-#endif
-
-/**
- * Request entry the answer for a waiting thread is collected in
- */
-typedef struct {
-	/** Condition variable thread is waiting */
-	condvar_t *condvar;
-	/** Array of hdrs in a multi-message response, as struct nlmsghdr* */
-	array_t *hdrs;
-	/** All response messages received? */
-	bool complete;
-} entry_t;
-
-/**
- * Clean up a thread waiting entry
- */
-static void destroy_entry(entry_t *entry)
-{
-	entry->condvar->destroy(entry->condvar);
-	array_destroy_function(entry->hdrs, (void*)free, NULL);
-	free(entry);
-}
-
-/**
- * Write a Netlink message to socket
- */
-static bool write_msg(private_netlink_socket_t *this, struct nlmsghdr *msg)
-{
-	struct sockaddr_nl addr = {
-		.nl_family = AF_NETLINK,
-	};
-	int len;
-
-	if (msg_loss_hook(msg))
-	{
-		return TRUE;
-	}
-
-	while (TRUE)
-	{
-		len = sendto(this->socket, msg, msg->nlmsg_len, 0,
-					 (struct sockaddr*)&addr, sizeof(addr));
-		if (len != msg->nlmsg_len)
-		{
-			if (errno == EINTR)
-			{
-				continue;
-			}
-			DBG1(DBG_KNL, "netlink write error: %s", strerror(errno));
-			return FALSE;
-		}
-		return TRUE;
-	}
-}
-
-/**
- * Read a single Netlink message from socket, return 0 on error, -1 on timeout
- */
-static ssize_t read_msg(private_netlink_socket_t *this,
-						char *buf, size_t buflen, bool block)
-{
-	ssize_t len;
-
-	if (block)
-	{
-		fd_set set;
-		timeval_t tv = {};
-
-		FD_ZERO(&set);
-		FD_SET(this->socket, &set);
-		timeval_add_ms(&tv, this->timeout);
-
-		if (select(this->socket + 1, &set, NULL, NULL,
-				   this->timeout ? &tv : NULL) <= 0)
-		{
-			return -1;
-		}
-	}
-	len = recv(this->socket, buf, buflen, MSG_TRUNC|(block ? 0 : MSG_DONTWAIT));
-	if (len > buflen)
-	{
-		DBG1(DBG_KNL, "netlink response exceeds buffer size");
-		return 0;
-	}
-	if (len < 0)
-	{
-		if (errno != EAGAIN && errno != EWOULDBLOCK && errno != EINTR)
-		{
-			DBG1(DBG_KNL, "netlink read error: %s", strerror(errno));
-		}
-		return 0;
-	}
-	return len;
-}
-
-/**
- * Queue received response message
- */
-static bool queue(private_netlink_socket_t *this, struct nlmsghdr *buf)
-{
-	struct nlmsghdr *hdr;
-	entry_t *entry;
-	uintptr_t seq;
-
-	seq = (uintptr_t)buf->nlmsg_seq;
-
-	this->mutex->lock(this->mutex);
-	entry = this->entries->get(this->entries, (void*)seq);
-	if (entry)
-	{
-		hdr = malloc(buf->nlmsg_len);
-		memcpy(hdr, buf, buf->nlmsg_len);
-		array_insert(entry->hdrs, ARRAY_TAIL, hdr);
-		if (hdr->nlmsg_type == NLMSG_DONE || !(hdr->nlmsg_flags & NLM_F_MULTI))
-		{
-			entry->complete = TRUE;
-			entry->condvar->signal(entry->condvar);
-		}
-	}
-	else
-	{
-		DBG1(DBG_KNL, "received unknown netlink seq %u, ignored", seq);
-	}
-	this->mutex->unlock(this->mutex);
-
-	return entry != NULL;
-}
-
-/**
- * Read and queue response message, optionally blocking, returns TRUE on timeout
- */
-static bool read_and_queue(private_netlink_socket_t *this, bool block)
-{
-	struct nlmsghdr *hdr;
-	char buf[this->buflen];
-	ssize_t len;
-
-	len = read_msg(this, buf, sizeof(buf), block);
-	if (len == -1)
-	{
-		return TRUE;
-	}
-	if (len)
-	{
-		hdr = (struct nlmsghdr*)buf;
-		while (NLMSG_OK(hdr, len))
-		{
-			if (!queue(this, hdr))
-			{
-				break;
-			}
-			hdr = NLMSG_NEXT(hdr, len);
-		}
-	}
-	return FALSE;
-}
-
-CALLBACK(watch, bool,
-	private_netlink_socket_t *this, int fd, watcher_event_t event)
-{
-	if (event == WATCHER_READ)
-	{
-		read_and_queue(this, FALSE);
-	}
-	return TRUE;
-}
-
-/**
- * Send a netlink request, try once
- */
-static status_t send_once(private_netlink_socket_t *this, struct nlmsghdr *in,
-						  uintptr_t seq, struct nlmsghdr **out, size_t *out_len)
-{
-	struct nlmsghdr *hdr;
-	chunk_t result = {};
-	entry_t *entry;
-
-	in->nlmsg_seq = seq;
-	in->nlmsg_pid = getpid();
-
-	if (this->names)
-	{
-		DBG3(DBG_KNL, "sending %N %u: %b", this->names, in->nlmsg_type,
-			 (u_int)seq, in, in->nlmsg_len);
-	}
-
-	this->mutex->lock(this->mutex);
-	if (!write_msg(this, in))
-	{
-		this->mutex->unlock(this->mutex);
-		return FAILED;
-	}
-
-	INIT(entry,
-		.condvar = condvar_create(CONDVAR_TYPE_DEFAULT),
-		.hdrs = array_create(0, 0),
-	);
-	this->entries->put(this->entries, (void*)seq, entry);
-
-	while (!entry->complete)
-	{
-		if (this->parallel &&
-			lib->watcher->get_state(lib->watcher) == WATCHER_RUNNING)
-		{
-			if (this->timeout)
-			{
-				if (entry->condvar->timed_wait(entry->condvar, this->mutex,
-											   this->timeout))
-				{
-					break;
-				}
-			}
-			else
-			{
-				entry->condvar->wait(entry->condvar, this->mutex);
-			}
-		}
-		else
-		{	/* During (de-)initialization, no watcher thread is active.
-			 * collect responses ourselves. */
-			if (read_and_queue(this, TRUE))
-			{
-				break;
-			}
-		}
-	}
-	this->entries->remove(this->entries, (void*)seq);
-
-	this->mutex->unlock(this->mutex);
-
-	if (!entry->complete)
-	{	/* timeout */
-		destroy_entry(entry);
-		return OUT_OF_RES;
-	}
-
-	while (array_remove(entry->hdrs, ARRAY_HEAD, &hdr))
-	{
-		if (this->names)
-		{
-			DBG3(DBG_KNL, "received %N %u: %b", this->names, hdr->nlmsg_type,
-				 hdr->nlmsg_seq, hdr, hdr->nlmsg_len);
-		}
-		result = chunk_cat("mm", result,
-						   chunk_create((char*)hdr, hdr->nlmsg_len));
-	}
-	destroy_entry(entry);
-
-	*out_len = result.len;
-	*out = (struct nlmsghdr*)result.ptr;
-
-	return SUCCESS;
-}
-
-/**
- * Ignore errors for message types that might have completed previously
- */
-static void ignore_retransmit_error(private_netlink_socket_t *this,
-									struct nlmsgerr *err, int type)
-{
-	switch (err->error)
-	{
-		case -EEXIST:
-			switch (this->protocol)
-			{
-				case NETLINK_XFRM:
-					switch (type)
-					{
-						case XFRM_MSG_NEWPOLICY:
-						case XFRM_MSG_NEWSA:
-							err->error = 0;
-							break;
-					}
-					break;
-				case NETLINK_ROUTE:
-					switch (type)
-					{
-						case RTM_NEWADDR:
-						case RTM_NEWLINK:
-						case RTM_NEWNEIGH:
-						case RTM_NEWROUTE:
-						case RTM_NEWRULE:
-							err->error = 0;
-							break;
-					}
-					break;
-			}
-			break;
-		case -ENOENT:
-			switch (this->protocol)
-			{
-				case NETLINK_XFRM:
-					switch (type)
-					{
-						case XFRM_MSG_DELPOLICY:
-						case XFRM_MSG_DELSA:
-							err->error = 0;
-							break;
-					}
-					break;
-				case NETLINK_ROUTE:
-					switch (type)
-					{
-						case RTM_DELADDR:
-						case RTM_DELLINK:
-						case RTM_DELNEIGH:
-						case RTM_DELROUTE:
-						case RTM_DELRULE:
-							err->error = 0;
-							break;
-					}
-					break;
-			}
-			break;
-	}
-}
-
-METHOD(netlink_socket_t, netlink_send, status_t,
-	private_netlink_socket_t *this, struct nlmsghdr *in, struct nlmsghdr **out,
-	size_t *out_len)
-{
-	uintptr_t seq;
-	u_int try;
-
-	seq = ref_get(&this->seq);
-
-	for (try = 0; try <= this->retries; ++try)
-	{
-		struct nlmsghdr *hdr;
-		status_t status;
-		size_t len;
-
-		if (try > 0)
-		{
-			DBG1(DBG_KNL, "retransmitting Netlink request (%u/%u)",
-				 try, this->retries);
-		}
-		status = send_once(this, in, seq, &hdr, &len);
-		switch (status)
-		{
-			case SUCCESS:
-				break;
-			case OUT_OF_RES:
-				continue;
-			default:
-				return status;
-		}
-		if (hdr->nlmsg_type == NLMSG_ERROR)
-		{
-			struct nlmsgerr* err;
-
-			err = NLMSG_DATA(hdr);
-			if (err->error == -EBUSY)
-			{
-				free(hdr);
-				try--;
-				continue;
-			}
-			if (this->ignore_retransmit_errors && try > 0)
-			{
-				ignore_retransmit_error(this, err, in->nlmsg_type);
-			}
-		}
-		*out = hdr;
-		*out_len = len;
-		return SUCCESS;
-	}
-	DBG1(DBG_KNL, "Netlink request timed out after %u retransmits",
-		 this->retries);
-	return OUT_OF_RES;
-}
-
-METHOD(netlink_socket_t, netlink_send_ack, status_t,
-	private_netlink_socket_t *this, struct nlmsghdr *in)
-{
-	struct nlmsghdr *out, *hdr;
-	size_t len;
-
-	if (netlink_send(this, in, &out, &len) != SUCCESS)
-	{
-		return FAILED;
-	}
-	hdr = out;
-	while (NLMSG_OK(hdr, len))
-	{
-		switch (hdr->nlmsg_type)
-		{
-			case NLMSG_ERROR:
-			{
-				struct nlmsgerr* err = NLMSG_DATA(hdr);
-
-				if (err->error)
-				{
-					if (-err->error == EEXIST)
-					{	/* do not report existing routes */
-						free(out);
-						return ALREADY_DONE;
-					}
-					if (-err->error == ESRCH)
-					{	/* do not report missing entries */
-						free(out);
-						return NOT_FOUND;
-					}
-					DBG1(DBG_KNL, "received netlink error: %s (%d)",
-						 strerror(-err->error), -err->error);
-					free(out);
-					return FAILED;
-				}
-				free(out);
-				return SUCCESS;
-			}
-			default:
-				hdr = NLMSG_NEXT(hdr, len);
-				continue;
-			case NLMSG_DONE:
-				break;
-		}
-		break;
-	}
-	DBG1(DBG_KNL, "netlink request not acknowledged");
-	free(out);
-	return FAILED;
-}
-
-METHOD(netlink_socket_t, destroy, void,
-	private_netlink_socket_t *this)
-{
-	if (this->socket != -1)
-	{
-		if (this->parallel)
-		{
-			lib->watcher->remove(lib->watcher, this->socket);
-		}
-		close(this->socket);
-	}
-	this->entries->destroy(this->entries);
-	this->mutex->destroy(this->mutex);
-	free(this);
-}
-
-/**
- * Described in header.
- */
-netlink_socket_t *netlink_socket_create(int protocol, enum_name_t *names,
-										bool parallel)
-{
-	private_netlink_socket_t *this;
-	struct sockaddr_nl addr = {
-		.nl_family = AF_NETLINK,
-	};
-
-	INIT(this,
-		.public = {
-			.send = _netlink_send,
-			.send_ack = _netlink_send_ack,
-			.destroy = _destroy,
-		},
-		.seq = 200,
-		.mutex = mutex_create(MUTEX_TYPE_RECURSIVE),
-		.socket = socket(AF_NETLINK, SOCK_RAW, protocol),
-		.entries = hashtable_create(hashtable_hash_ptr, hashtable_equals_ptr, 4),
-		.protocol = protocol,
-		.names = names,
-		.buflen = lib->settings->get_int(lib->settings,
-							"%s.plugins.kernel-netlink.buflen", 0, lib->ns),
-		.timeout = lib->settings->get_int(lib->settings,
-							"%s.plugins.kernel-netlink.timeout", 0, lib->ns),
-		.retries = lib->settings->get_int(lib->settings,
-							"%s.plugins.kernel-netlink.retries", 0, lib->ns),
-		.ignore_retransmit_errors = lib->settings->get_bool(lib->settings,
-							"%s.plugins.kernel-netlink.ignore_retransmit_errors",
-							FALSE, lib->ns),
-		.parallel = parallel,
-	);
-
-	if (!this->buflen)
-	{
-		long pagesize = sysconf(_SC_PAGESIZE);
-		if (pagesize == -1)
-		{
-			pagesize = 4096;
-		}
-		/* base this on NLMSG_GOODSIZE */
-		this->buflen = min(pagesize, 8192);
-	}
-	if (this->socket == -1)
-	{
-		DBG1(DBG_KNL, "unable to create netlink socket");
-		destroy(this);
-		return NULL;
-	}
-	if (bind(this->socket, (struct sockaddr*)&addr, sizeof(addr)))
-	{
-		DBG1(DBG_KNL, "unable to bind netlink socket");
-		destroy(this);
-		return NULL;
-	}
-	if (this->parallel)
-	{
-		lib->watcher->add(lib->watcher, this->socket, WATCHER_READ, watch, this);
-	}
-
-	return &this->public;
-}
-
-/**
- * Described in header.
- */
-void netlink_add_attribute(struct nlmsghdr *hdr, int rta_type, chunk_t data,
-						  size_t buflen)
-{
-	struct rtattr *rta;
-
-	if (NLMSG_ALIGN(hdr->nlmsg_len) + RTA_LENGTH(data.len) > buflen)
-	{
-		DBG1(DBG_KNL, "unable to add attribute, buffer too small");
-		return;
-	}
-
-	rta = (struct rtattr*)(((char*)hdr) + NLMSG_ALIGN(hdr->nlmsg_len));
-	rta->rta_type = rta_type;
-	rta->rta_len = RTA_LENGTH(data.len);
-	memcpy(RTA_DATA(rta), data.ptr, data.len);
-	hdr->nlmsg_len = NLMSG_ALIGN(hdr->nlmsg_len) + rta->rta_len;
-}
-
-/**
- * Described in header.
- */
-void* netlink_reserve(struct nlmsghdr *hdr, int buflen, int type, int len)
-{
-	struct rtattr *rta;
-
-	if (NLMSG_ALIGN(hdr->nlmsg_len) + RTA_LENGTH(len) > buflen)
-	{
-		DBG1(DBG_KNL, "unable to add attribute, buffer too small");
-		return NULL;
-	}
-
-	rta = ((void*)hdr) + NLMSG_ALIGN(hdr->nlmsg_len);
-	rta->rta_type = type;
-	rta->rta_len = RTA_LENGTH(len);
-	hdr->nlmsg_len = NLMSG_ALIGN(hdr->nlmsg_len) + rta->rta_len;
-
-	return RTA_DATA(rta);
-}
diff --git a/src/libhydra/plugins/kernel_netlink/kernel_netlink_shared.h b/src/libhydra/plugins/kernel_netlink/kernel_netlink_shared.h
deleted file mode 100644
index 66682907d..000000000
--- a/src/libhydra/plugins/kernel_netlink/kernel_netlink_shared.h
+++ /dev/null
@@ -1,96 +0,0 @@
-/*
- * Copyright (C) 2008 Tobias Brunner
- * 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.
- */
-
-#ifndef KERNEL_NETLINK_SHARED_H_
-#define KERNEL_NETLINK_SHARED_H_
-
-#include <library.h>
-
-#include <linux/rtnetlink.h>
-
-/**
- * General purpose netlink buffer.
- *
- * 1024 byte is currently sufficient for all operations. Some platform
- * require an enforced aligment to four bytes (e.g. ARM).
- */
-typedef union {
-	struct nlmsghdr hdr;
-	u_char bytes[1024];
-} netlink_buf_t __attribute__((aligned(RTA_ALIGNTO)));
-
-typedef struct netlink_socket_t netlink_socket_t;
-
-/**
- * Wrapper around a netlink socket.
- */
-struct netlink_socket_t {
-
-	/**
-	 * Send a netlink message and wait for a reply.
-	 *
-	 * @param	in		netlink message to send
-	 * @param	out 	received netlink message
-	 * @param	out_len	length of the received message
-	 */
-	status_t (*send)(netlink_socket_t *this, struct nlmsghdr *in,
-					 struct nlmsghdr **out, size_t *out_len);
-
-	/**
-	 * Send a netlink message and wait for its acknowledge.
-	 *
-	 * @param	in		netlink message to send
-	 */
-	status_t (*send_ack)(netlink_socket_t *this, struct nlmsghdr *in);
-
-	/**
-	 * Destroy the socket.
-	 */
-	void (*destroy)(netlink_socket_t *this);
-};
-
-/**
- * Create a netlink_socket_t object.
- *
- * @param protocol	protocol type (e.g. NETLINK_XFRM or NETLINK_ROUTE)
- * @param names		optional enum names for Netlink messages
- * @param parallel	support parallel queries on this Netlink socket
- */
-netlink_socket_t *netlink_socket_create(int protocol, enum_name_t *names,
-										bool parallel);
-
-/**
- * Creates an rtattr and adds it to the given netlink message.
- *
- * @param hdr			netlink message
- * @param rta_type		type of the rtattr
- * @param data			data to add to the rtattr
- * @param buflen		length of the netlink message buffer
- */
-void netlink_add_attribute(struct nlmsghdr *hdr, int rta_type, chunk_t data,
-						   size_t buflen);
-
-/**
- * Reserve space in a netlink message for given size and type, returning buffer.
- *
- * @param hdr			netlink message
- * @param buflen		size of full netlink buffer
- * @param type			RTA type
- * @param len			length of RTA data
- * @return				buffer to len bytes of attribute data, NULL on error
- */
-void* netlink_reserve(struct nlmsghdr *hdr, int buflen, int type, int len);
-
-#endif /* KERNEL_NETLINK_SHARED_H_ */
diff --git a/src/libhydra/plugins/kernel_netlink/suites/test_socket.c b/src/libhydra/plugins/kernel_netlink/suites/test_socket.c
deleted file mode 100644
index 3e8facd0a..000000000
--- a/src/libhydra/plugins/kernel_netlink/suites/test_socket.c
+++ /dev/null
@@ -1,302 +0,0 @@
-/*
- * Copyright (C) 2014 Martin Willi
- * Copyright (C) 2014 revosec AG
- *
- * 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.
- */
-
-#include <test_suite.h>
-
-#include <threading/thread.h>
-
-#include "../kernel_netlink_shared.h"
-
-/**
- * Netlink message drop configuration
- */
-static int drop_interval = 0;
-
-/**
- * Netlink message drop hook
- */
-bool netlink_msg_loss(struct nlmsghdr *hdr)
-{
-	static refcount_t i;
-
-	if (drop_interval)
-	{
-		return ref_get(&i) % drop_interval == drop_interval - 1;
-	}
-	return FALSE;
-}
-
-START_TEST(test_echo)
-{
-	netlink_socket_t *s;
-	struct nlmsghdr *out;
-	struct rtmsg *msg;
-	char dst[] = {
-		127,0,0,1
-	};
-	size_t len;
-	netlink_buf_t request = {
-		.hdr = {
-			.nlmsg_len = NLMSG_LENGTH(sizeof(struct rtmsg)),
-			.nlmsg_flags = NLM_F_REQUEST,
-			.nlmsg_type = RTM_GETROUTE,
-		},
-	};
-
-	msg = NLMSG_DATA(&request.hdr);
-	msg->rtm_family = AF_INET;
-	netlink_add_attribute(&request.hdr, RTA_DST,
-						  chunk_from_thing(dst), sizeof(request));
-
-	s = netlink_socket_create(NETLINK_ROUTE, NULL, _i != 0);
-
-	ck_assert(s->send(s, &request.hdr, &out, &len) == SUCCESS);
-	ck_assert_int_eq(out->nlmsg_type, RTM_NEWROUTE);
-	free(out);
-	s->destroy(s);
-}
-END_TEST
-
-START_TEST(test_echo_dump)
-{
-	netlink_socket_t *s;
-	struct nlmsghdr *out, *current;
-	struct rtgenmsg *msg;
-	size_t len;
-	netlink_buf_t request = {
-		.hdr = {
-			.nlmsg_len = NLMSG_LENGTH(sizeof(struct rtgenmsg)),
-			.nlmsg_flags = NLM_F_REQUEST | NLM_F_MATCH | NLM_F_ROOT,
-			.nlmsg_type = RTM_GETLINK,
-		},
-	};
-
-	s = netlink_socket_create(NETLINK_ROUTE, NULL, _i != 0);
-	msg = NLMSG_DATA(&request.hdr);
-	msg->rtgen_family = AF_UNSPEC;
-
-	ck_assert(s->send(s, &request.hdr, &out, &len) == SUCCESS);
-	current = out;
-	while (TRUE)
-	{
-		ck_assert(NLMSG_OK(current, len));
-		if (current->nlmsg_type == NLMSG_DONE)
-		{
-			break;
-		}
-		ck_assert_int_eq(current->nlmsg_type, RTM_NEWLINK);
-		current = NLMSG_NEXT(current, len);
-	}
-	free(out);
-	s->destroy(s);
-}
-END_TEST
-
-CALLBACK(stress, void*,
-	netlink_socket_t *s)
-{
-	struct nlmsghdr *out;
-	struct rtmsg *msg;
-	char dst[] = {
-		127,0,0,1
-	};
-	size_t len;
-	int i;
-	netlink_buf_t request = {
-		.hdr = {
-			.nlmsg_len = NLMSG_LENGTH(sizeof(struct rtmsg)),
-			.nlmsg_flags = NLM_F_REQUEST,
-			.nlmsg_type = RTM_GETROUTE,
-		},
-	};
-
-	for (i = 0; i < 10; i++)
-	{
-		msg = NLMSG_DATA(&request.hdr);
-		msg->rtm_family = AF_INET;
-		netlink_add_attribute(&request.hdr, RTA_DST,
-							  chunk_from_thing(dst), sizeof(request));
-
-		ck_assert(s->send(s, &request.hdr, &out, &len) == SUCCESS);
-		ck_assert_int_eq(out->nlmsg_type, RTM_NEWROUTE);
-		free(out);
-	}
-	return NULL;
-}
-
-CALLBACK(stress_dump, void*,
-	netlink_socket_t *s)
-{
-	struct nlmsghdr *out, *current;
-	struct rtgenmsg *msg;
-	size_t len;
-	int i;
-	netlink_buf_t request = {
-		.hdr = {
-			.nlmsg_len = NLMSG_LENGTH(sizeof(struct rtgenmsg)),
-			.nlmsg_flags = NLM_F_REQUEST | NLM_F_MATCH | NLM_F_ROOT,
-			.nlmsg_type = RTM_GETLINK,
-		},
-	};
-
-	msg = NLMSG_DATA(&request.hdr);
-	msg->rtgen_family = AF_UNSPEC;
-
-	for (i = 0; i < 10; i++)
-	{
-		ck_assert(s->send(s, &request.hdr, &out, &len) == SUCCESS);
-		current = out;
-		while (TRUE)
-		{
-			ck_assert(NLMSG_OK(current, len));
-			if (current->nlmsg_type == NLMSG_DONE)
-			{
-				break;
-			}
-			ck_assert_int_eq(current->nlmsg_type, RTM_NEWLINK);
-			current = NLMSG_NEXT(current, len);
-		}
-		free(out);
-	}
-	return NULL;
-}
-
-START_TEST(test_stress)
-{
-	thread_t *threads[10];
-	netlink_socket_t *s;
-	int i;
-
-	s = netlink_socket_create(NETLINK_ROUTE, NULL, _i != 0);
-	for (i = 0; i < countof(threads); i++)
-	{
-		threads[i] = thread_create(stress, s);
-	}
-	for (i = 0; i < countof(threads); i++)
-	{
-		threads[i]->join(threads[i]);
-	}
-	s->destroy(s);
-}
-END_TEST
-
-START_TEST(test_stress_dump)
-{
-	thread_t *threads[10];
-	netlink_socket_t *s;
-	int i;
-
-	s = netlink_socket_create(NETLINK_ROUTE, NULL, _i != 0);
-	for (i = 0; i < countof(threads); i++)
-	{
-		threads[i] = thread_create(stress_dump, s);
-	}
-	for (i = 0; i < countof(threads); i++)
-	{
-		threads[i]->join(threads[i]);
-	}
-	s->destroy(s);
-}
-END_TEST
-
-START_TEST(test_retransmit_success)
-{
-	netlink_socket_t *s;
-	struct nlmsghdr *out;
-	struct rtgenmsg *msg;
-	size_t len;
-	netlink_buf_t request = {
-		.hdr = {
-			.nlmsg_len = NLMSG_LENGTH(sizeof(struct rtgenmsg)),
-			.nlmsg_flags = NLM_F_REQUEST | NLM_F_MATCH | NLM_F_ROOT,
-			.nlmsg_type = RTM_GETLINK,
-		},
-	};
-
-	drop_interval = 2;
-
-	lib->settings->set_int(lib->settings,
-							"%s.plugins.kernel-netlink.timeout", 100, lib->ns);
-	lib->settings->set_int(lib->settings,
-							"%s.plugins.kernel-netlink.retries", 1, lib->ns);
-
-	s = netlink_socket_create(NETLINK_ROUTE, NULL, _i != 0);
-	msg = NLMSG_DATA(&request.hdr);
-	msg->rtgen_family = AF_UNSPEC;
-
-	ck_assert(s->send(s, &request.hdr, &out, &len) == SUCCESS);
-	free(out);
-	s->destroy(s);
-
-	drop_interval = 0;
-}
-END_TEST
-
-START_TEST(test_retransmit_fail)
-{
-	netlink_socket_t *s;
-	struct nlmsghdr *out;
-	struct rtgenmsg *msg;
-	size_t len;
-	netlink_buf_t request = {
-		.hdr = {
-			.nlmsg_len = NLMSG_LENGTH(sizeof(struct rtgenmsg)),
-			.nlmsg_flags = NLM_F_REQUEST | NLM_F_MATCH | NLM_F_ROOT,
-			.nlmsg_type = RTM_GETLINK,
-		},
-	};
-
-	drop_interval = 1;
-
-	lib->settings->set_int(lib->settings,
-							"%s.plugins.kernel-netlink.timeout", 50, lib->ns);
-	lib->settings->set_int(lib->settings,
-							"%s.plugins.kernel-netlink.retries", 3, lib->ns);
-
-	s = netlink_socket_create(NETLINK_ROUTE, NULL, _i != 0);
-	msg = NLMSG_DATA(&request.hdr);
-	msg->rtgen_family = AF_UNSPEC;
-
-	ck_assert(s->send(s, &request.hdr, &out, &len) == OUT_OF_RES);
-	s->destroy(s);
-
-	drop_interval = 0;
-}
-END_TEST
-
-Suite *socket_suite_create()
-{
-	Suite *s;
-	TCase *tc;
-
-	s = suite_create("netlink socket");
-
-	tc = tcase_create("echo");
-	tcase_add_loop_test(tc, test_echo, 0, 2);
-	tcase_add_loop_test(tc, test_echo_dump, 0, 2);
-	suite_add_tcase(s, tc);
-
-	tc = tcase_create("stress");
-	tcase_add_loop_test(tc, test_stress, 0, 2);
-	tcase_add_loop_test(tc, test_stress_dump, 0, 2);
-	suite_add_tcase(s, tc);
-
-	tc = tcase_create("retransmit");
-	tcase_add_loop_test(tc, test_retransmit_success, 0, 2);
-	tcase_add_loop_test(tc, test_retransmit_fail, 0, 2);
-	suite_add_tcase(s, tc);
-
-	return s;
-}
diff --git a/src/libhydra/plugins/kernel_netlink/tests.c b/src/libhydra/plugins/kernel_netlink/tests.c
deleted file mode 100644
index 52985b438..000000000
--- a/src/libhydra/plugins/kernel_netlink/tests.c
+++ /dev/null
@@ -1,49 +0,0 @@
-/*
- * Copyright (C) 2014 Martin Willi
- * Copyright (C) 2014 revosec AG
- *
- * 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.
- */
-
-#include <test_runner.h>
-
-#include <hydra.h>
-
-/* declare test suite constructors */
-#define TEST_SUITE(x) test_suite_t* x();
-#include "tests.h"
-#undef TEST_SUITE
-
-static test_configuration_t tests[] = {
-#define TEST_SUITE(x) \
-	{ .suite = x, },
-#include "tests.h"
-	{ .suite = NULL, }
-};
-
-static bool test_runner_init(bool init)
-{
-	if (init)
-	{
-		lib->processor->set_threads(lib->processor, 8);
-	}
-	else
-	{
-		lib->processor->set_threads(lib->processor, 0);
-		lib->processor->cancel(lib->processor);
-	}
-	return TRUE;
-}
-
-int main(int argc, char *argv[])
-{
-	return test_runner_run("kernel-netlink", tests, test_runner_init);
-}
diff --git a/src/libhydra/plugins/kernel_netlink/tests.h b/src/libhydra/plugins/kernel_netlink/tests.h
deleted file mode 100644
index 2b6715a78..000000000
--- a/src/libhydra/plugins/kernel_netlink/tests.h
+++ /dev/null
@@ -1,16 +0,0 @@
-/*
- * Copyright (C) 2014 Martin Willi
- * Copyright (C) 2014 revosec AG
- *
- * 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.
- */
-
-TEST_SUITE(socket_suite_create)
diff --git a/src/libhydra/plugins/kernel_pfkey/Makefile.am b/src/libhydra/plugins/kernel_pfkey/Makefile.am
deleted file mode 100644
index f645528d9..000000000
--- a/src/libhydra/plugins/kernel_pfkey/Makefile.am
+++ /dev/null
@@ -1,19 +0,0 @@
-AM_CPPFLAGS = \
-	-I${linux_headers} \
-	-I$(top_srcdir)/src/libstrongswan \
-	-I$(top_srcdir)/src/libhydra
-
-AM_CFLAGS = \
-	$(PLUGIN_CFLAGS)
-
-if MONOLITHIC
-noinst_LTLIBRARIES = libstrongswan-kernel-pfkey.la
-else
-plugin_LTLIBRARIES = libstrongswan-kernel-pfkey.la
-endif
-
-libstrongswan_kernel_pfkey_la_SOURCES = \
-	kernel_pfkey_plugin.h kernel_pfkey_plugin.c \
-	kernel_pfkey_ipsec.h kernel_pfkey_ipsec.c
-
-libstrongswan_kernel_pfkey_la_LDFLAGS = -module -avoid-version
diff --git a/src/libhydra/plugins/kernel_pfkey/Makefile.in b/src/libhydra/plugins/kernel_pfkey/Makefile.in
deleted file mode 100644
index 177d2f23f..000000000
--- a/src/libhydra/plugins/kernel_pfkey/Makefile.in
+++ /dev/null
@@ -1,780 +0,0 @@
-# Makefile.in generated by automake 1.14.1 from Makefile.am.
-# @configure_input@
-
-# Copyright (C) 1994-2013 Free Software Foundation, Inc.
-
-# This Makefile.in is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
-
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
-# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
-# PARTICULAR PURPOSE.
-
-@SET_MAKE@
-
-VPATH = @srcdir@
-am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
-am__make_running_with_option = \
-  case $${target_option-} in \
-      ?) ;; \
-      *) echo "am__make_running_with_option: internal error: invalid" \
-              "target option '$${target_option-}' specified" >&2; \
-         exit 1;; \
-  esac; \
-  has_opt=no; \
-  sane_makeflags=$$MAKEFLAGS; \
-  if $(am__is_gnu_make); then \
-    sane_makeflags=$$MFLAGS; \
-  else \
-    case $$MAKEFLAGS in \
-      *\\[\ \	]*) \
-        bs=\\; \
-        sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \
-          | sed "s/$$bs$$bs[$$bs $$bs	]*//g"`;; \
-    esac; \
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-  skip_next=no; \
-  strip_trailopt () \
-  { \
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-  for flg in $$sane_makeflags; do \
-    test $$skip_next = yes && { skip_next=no; continue; }; \
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-      *=*|--*) continue;; \
-        -*I) strip_trailopt 'I'; skip_next=yes;; \
-      -*I?*) strip_trailopt 'I';; \
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-      -[dEDm]) skip_next=yes;; \
-      -[JT]) skip_next=yes;; \
-    esac; \
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-      *$$target_option*) has_opt=yes; break;; \
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-  test $$has_opt = yes
-am__make_dryrun = (target_option=n; $(am__make_running_with_option))
-am__make_keepgoing = (target_option=k; $(am__make_running_with_option))
-pkgdatadir = $(datadir)/@PACKAGE@
-pkgincludedir = $(includedir)/@PACKAGE@
-pkglibdir = $(libdir)/@PACKAGE@
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-am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
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-PRE_UNINSTALL = :
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-host_triplet = @host@
-subdir = src/libhydra/plugins/kernel_pfkey
-DIST_COMMON = $(srcdir)/Makefile.in $(srcdir)/Makefile.am \
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-	$(top_srcdir)/m4/config/ltversion.m4 \
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-	$(top_srcdir)/m4/macros/split-package-version.m4 \
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-	$(top_srcdir)/m4/macros/add-plugin.m4 \
-	$(top_srcdir)/configure.ac
-am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
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-CONFIG_CLEAN_FILES =
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-	     $$unique
-
-GTAGS:
-	here=`$(am__cd) $(top_builddir) && pwd` \
-	  && $(am__cd) $(top_srcdir) \
-	  && gtags -i $(GTAGS_ARGS) "$$here"
-cscopelist: cscopelist-am
-
-cscopelist-am: $(am__tagged_files)
-	list='$(am__tagged_files)'; \
-	case "$(srcdir)" in \
-	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
-	  *) sdir=$(subdir)/$(srcdir) ;; \
-	esac; \
-	for i in $$list; do \
-	  if test -f "$$i"; then \
-	    echo "$(subdir)/$$i"; \
-	  else \
-	    echo "$$sdir/$$i"; \
-	  fi; \
-	done >> $(top_builddir)/cscope.files
-
-distclean-tags:
-	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
-
-distdir: $(DISTFILES)
-	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
-	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
-	list='$(DISTFILES)'; \
-	  dist_files=`for file in $$list; do echo $$file; done | \
-	  sed -e "s|^$$srcdirstrip/||;t" \
-	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
-	case $$dist_files in \
-	  */*) $(MKDIR_P) `echo "$$dist_files" | \
-			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
-			   sort -u` ;; \
-	esac; \
-	for file in $$dist_files; do \
-	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
-	  if test -d $$d/$$file; then \
-	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
-	    if test -d "$(distdir)/$$file"; then \
-	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
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-	    fi; \
-	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
-	  else \
-	    test -f "$(distdir)/$$file" \
-	    || cp -p $$d/$$file "$(distdir)/$$file" \
-	    || exit 1; \
-	  fi; \
-	done
-check-am: all-am
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-	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
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-
-# Tell versions [3.59,3.63) of GNU make to not export all variables.
-# Otherwise a system limit (for SysV at least) may be exceeded.
-.NOEXPORT:
diff --git a/src/libhydra/plugins/kernel_pfkey/kernel_pfkey_ipsec.c b/src/libhydra/plugins/kernel_pfkey/kernel_pfkey_ipsec.c
deleted file mode 100644
index a2fccd1d3..000000000
--- a/src/libhydra/plugins/kernel_pfkey/kernel_pfkey_ipsec.c
+++ /dev/null
@@ -1,3102 +0,0 @@
-/*
- * Copyright (C) 2008-2015 Tobias Brunner
- * Copyright (C) 2008 Andreas Steffen
- * 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) 2014 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.
- */
-
-#include <stdint.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-
-#ifdef __FreeBSD__
-#include <limits.h> /* for LONG_MAX */
-#endif
-
-#ifdef HAVE_NET_PFKEYV2_H
-#include <net/pfkeyv2.h>
-#else
-#include <linux/pfkeyv2.h>
-#endif
-
-#ifdef SADB_X_EXT_NAT_T_TYPE
-#define HAVE_NATT
-#endif
-
-#ifdef HAVE_NETIPSEC_IPSEC_H
-#include <netipsec/ipsec.h>
-#elif defined(HAVE_NETINET6_IPSEC_H)
-#include <netinet6/ipsec.h>
-#else
-#include <linux/ipsec.h>
-#endif
-
-#ifdef HAVE_NATT
-#ifdef HAVE_LINUX_UDP_H
-#include <linux/udp.h>
-#else
-#include <netinet/udp.h>
-#endif /*HAVE_LINUX_UDP_H*/
-#endif /*HAVE_NATT*/
-
-#include <unistd.h>
-#include <time.h>
-#include <errno.h>
-#ifdef __APPLE__
-#include <sys/sysctl.h>
-#endif
-
-#include "kernel_pfkey_ipsec.h"
-
-#include <hydra.h>
-#include <utils/debug.h>
-#include <networking/host.h>
-#include <collections/linked_list.h>
-#include <collections/hashtable.h>
-#include <threading/mutex.h>
-
-/** non linux specific */
-#ifndef IPPROTO_COMP
-#ifdef IPPROTO_IPCOMP
-#define IPPROTO_COMP IPPROTO_IPCOMP
-#endif
-#endif
-
-#ifndef SADB_X_AALG_SHA2_256HMAC
-#define SADB_X_AALG_SHA2_256HMAC SADB_X_AALG_SHA2_256
-#define SADB_X_AALG_SHA2_384HMAC SADB_X_AALG_SHA2_384
-#define SADB_X_AALG_SHA2_512HMAC SADB_X_AALG_SHA2_512
-#endif
-
-#ifndef SADB_X_EALG_AESCBC
-#define SADB_X_EALG_AESCBC SADB_X_EALG_AES
-#endif
-
-#ifndef SADB_X_EALG_CASTCBC
-#define SADB_X_EALG_CASTCBC SADB_X_EALG_CAST128CBC
-#endif
-
-#if !defined(SADB_X_EALG_AES_GCM_ICV8) && defined(SADB_X_EALG_AESGCM8)
-#define SADB_X_EALG_AES_GCM_ICV8 SADB_X_EALG_AESGCM8
-#define SADB_X_EALG_AES_GCM_ICV12 SADB_X_EALG_AESGCM12
-#define SADB_X_EALG_AES_GCM_ICV16 SADB_X_EALG_AESGCM16
-#endif
-
-#ifndef SOL_IP
-#define SOL_IP IPPROTO_IP
-#define SOL_IPV6 IPPROTO_IPV6
-#endif
-
-/** from linux/in.h */
-#ifndef IP_IPSEC_POLICY
-#define IP_IPSEC_POLICY 16
-#endif
-
-/** missing on uclibc */
-#ifndef IPV6_IPSEC_POLICY
-#define IPV6_IPSEC_POLICY 34
-#endif
-
-/* from linux/udp.h */
-#ifndef UDP_ENCAP
-#define UDP_ENCAP 100
-#endif
-
-#ifndef UDP_ENCAP_ESPINUDP
-#define UDP_ENCAP_ESPINUDP 2
-#endif
-
-/* this is not defined on some platforms */
-#ifndef SOL_UDP
-#define SOL_UDP IPPROTO_UDP
-#endif
-
-/** base priority for installed policies */
-#define PRIO_BASE 384
-
-#ifdef __APPLE__
-/** from xnu/bsd/net/pfkeyv2.h */
-#define SADB_X_EXT_NATT 0x002
-	struct sadb_sa_2 {
-		struct sadb_sa	sa;
-		u_int16_t		sadb_sa_natt_port;
-		u_int16_t		sadb_reserved0;
-		u_int32_t		sadb_reserved1;
-	};
-#endif
-
-/** buffer size for PF_KEY messages */
-#define PFKEY_BUFFER_SIZE 4096
-
-/** PF_KEY messages are 64 bit aligned */
-#define PFKEY_ALIGNMENT 8
-/** aligns len to 64 bits */
-#define PFKEY_ALIGN(len) (((len) + PFKEY_ALIGNMENT - 1) & ~(PFKEY_ALIGNMENT - 1))
-/** calculates the properly padded length in 64 bit chunks */
-#define PFKEY_LEN(len) ((PFKEY_ALIGN(len) / PFKEY_ALIGNMENT))
-/** calculates user mode length i.e. in bytes */
-#define PFKEY_USER_LEN(len) ((len) * PFKEY_ALIGNMENT)
-
-/** given a PF_KEY message header and an extension this updates the length in the header */
-#define PFKEY_EXT_ADD(msg, ext) ((msg)->sadb_msg_len += ((struct sadb_ext*)ext)->sadb_ext_len)
-/** given a PF_KEY message header this returns a pointer to the next extension */
-#define PFKEY_EXT_ADD_NEXT(msg) ((struct sadb_ext*)(((char*)(msg)) + PFKEY_USER_LEN((msg)->sadb_msg_len)))
-/** copy an extension and append it to a PF_KEY message */
-#define PFKEY_EXT_COPY(msg, ext) (PFKEY_EXT_ADD(msg, memcpy(PFKEY_EXT_ADD_NEXT(msg), ext, PFKEY_USER_LEN(((struct sadb_ext*)ext)->sadb_ext_len))))
-/** given a PF_KEY extension this returns a pointer to the next extension */
-#define PFKEY_EXT_NEXT(ext) ((struct sadb_ext*)(((char*)(ext)) + PFKEY_USER_LEN(((struct sadb_ext*)ext)->sadb_ext_len)))
-/** given a PF_KEY extension this returns a pointer to the next extension also updates len (len in 64 bit words) */
-#define PFKEY_EXT_NEXT_LEN(ext,len) ((len) -= (ext)->sadb_ext_len, PFKEY_EXT_NEXT(ext))
-/** true if ext has a valid length and len is large enough to contain ext (assuming len in 64 bit words) */
-#define PFKEY_EXT_OK(ext,len) ((len) >= PFKEY_LEN(sizeof(struct sadb_ext)) && \
-				(ext)->sadb_ext_len >= PFKEY_LEN(sizeof(struct sadb_ext)) && \
-				(ext)->sadb_ext_len <= (len))
-
-typedef struct private_kernel_pfkey_ipsec_t private_kernel_pfkey_ipsec_t;
-
-/**
- * Private variables and functions of kernel_pfkey class.
- */
-struct private_kernel_pfkey_ipsec_t
-{
-	/**
-	 * Public part of the kernel_pfkey_t object.
-	 */
-	kernel_pfkey_ipsec_t public;
-
-	/**
-	 * mutex to lock access to various lists
-	 */
-	mutex_t *mutex;
-
-	/**
-	 * List of installed policies (policy_entry_t)
-	 */
-	linked_list_t *policies;
-
-	/**
-	 * List of exclude routes (exclude_route_t)
-	 */
-	linked_list_t *excludes;
-
-	/**
-	 * Hash table of IPsec SAs using policies (ipsec_sa_t)
-	 */
-	hashtable_t *sas;
-
-	/**
-	 * whether to install routes along policies
-	 */
-	bool install_routes;
-
-	/**
-	 * mutex to lock access to the PF_KEY socket
-	 */
-	mutex_t *mutex_pfkey;
-
-	/**
-	 * PF_KEY socket to communicate with the kernel
-	 */
-	int socket;
-
-	/**
-	 * PF_KEY socket to receive acquire and expire events
-	 */
-	int socket_events;
-
-	/**
-	 * sequence number for messages sent to the kernel
-	 */
-	int seq;
-};
-
-typedef struct exclude_route_t exclude_route_t;
-
-/**
- * Exclude route definition
- */
-struct exclude_route_t {
-	/** destination address of exclude */
-	host_t *dst;
-	/** source address for route */
-	host_t *src;
-	/** nexthop exclude has been installed */
-	host_t *gtw;
-	/** references to this route */
-	int refs;
-};
-
-/**
- * clean up a route exclude entry
- */
-static void exclude_route_destroy(exclude_route_t *this)
-{
-	this->dst->destroy(this->dst);
-	this->src->destroy(this->src);
-	this->gtw->destroy(this->gtw);
-	free(this);
-}
-
-typedef struct route_entry_t route_entry_t;
-
-/**
- * installed routing entry
- */
-struct route_entry_t {
-	/** name of the interface the route is bound to */
-	char *if_name;
-
-	/** source ip of the route */
-	host_t *src_ip;
-
-	/** gateway for this route */
-	host_t *gateway;
-
-	/** destination net */
-	chunk_t dst_net;
-
-	/** destination net prefixlen */
-	u_int8_t prefixlen;
-
-	/** reference to exclude route, if any */
-	exclude_route_t *exclude;
-};
-
-/**
- * destroy an route_entry_t object
- */
-static void route_entry_destroy(route_entry_t *this)
-{
-	free(this->if_name);
-	DESTROY_IF(this->src_ip);
-	DESTROY_IF(this->gateway);
-	chunk_free(&this->dst_net);
-	free(this);
-}
-
-/**
- * compare two route_entry_t objects
- */
-static bool route_entry_equals(route_entry_t *a, route_entry_t *b)
-{
-	return a->if_name && b->if_name && streq(a->if_name, b->if_name) &&
-		   a->src_ip->ip_equals(a->src_ip, b->src_ip) &&
-		   a->gateway && b->gateway &&
-		   a->gateway->ip_equals(a->gateway, b->gateway) &&
-		   chunk_equals(a->dst_net, b->dst_net) && a->prefixlen == b->prefixlen;
-}
-
-typedef struct ipsec_sa_t ipsec_sa_t;
-
-/**
- * IPsec SA assigned to a policy.
- */
-struct ipsec_sa_t {
-	/** Source address of this SA */
-	host_t *src;
-
-	/** Destination address of this SA */
-	host_t *dst;
-
-	/** Description of this SA */
-	ipsec_sa_cfg_t cfg;
-
-	/** Reference count for this SA */
-	refcount_t refcount;
-};
-
-/**
- * Hash function for ipsec_sa_t objects
- */
-static u_int ipsec_sa_hash(ipsec_sa_t *sa)
-{
-	return chunk_hash_inc(sa->src->get_address(sa->src),
-						  chunk_hash_inc(sa->dst->get_address(sa->dst),
-						  chunk_hash(chunk_from_thing(sa->cfg))));
-}
-
-/**
- * Equality function for ipsec_sa_t objects
- */
-static bool ipsec_sa_equals(ipsec_sa_t *sa, ipsec_sa_t *other_sa)
-{
-	return sa->src->ip_equals(sa->src, other_sa->src) &&
-		   sa->dst->ip_equals(sa->dst, other_sa->dst) &&
-		   memeq(&sa->cfg, &other_sa->cfg, sizeof(ipsec_sa_cfg_t));
-}
-
-/**
- * Allocate or reference an IPsec SA object
- */
-static ipsec_sa_t *ipsec_sa_create(private_kernel_pfkey_ipsec_t *this,
-								   host_t *src, host_t *dst,
-								   ipsec_sa_cfg_t *cfg)
-{
-	ipsec_sa_t *sa, *found;
-	INIT(sa,
-		.src = src,
-		.dst = dst,
-		.cfg = *cfg,
-	);
-	found = this->sas->get(this->sas, sa);
-	if (!found)
-	{
-		sa->src = src->clone(src);
-		sa->dst = dst->clone(dst);
-		this->sas->put(this->sas, sa, sa);
-	}
-	else
-	{
-		free(sa);
-		sa = found;
-	}
-	ref_get(&sa->refcount);
-	return sa;
-}
-
-/**
- * Release and destroy an IPsec SA object
- */
-static void ipsec_sa_destroy(private_kernel_pfkey_ipsec_t *this,
-							 ipsec_sa_t *sa)
-{
-	if (ref_put(&sa->refcount))
-	{
-		this->sas->remove(this->sas, sa);
-		DESTROY_IF(sa->src);
-		DESTROY_IF(sa->dst);
-		free(sa);
-	}
-}
-
-typedef struct policy_sa_t policy_sa_t;
-typedef struct policy_sa_in_t policy_sa_in_t;
-
-/**
- * Mapping between a policy and an IPsec SA.
- */
-struct policy_sa_t {
-	/** Priority assigned to the policy when installed with this SA */
-	u_int32_t priority;
-
-	/** Type of the policy */
-	policy_type_t type;
-
-	/** Assigned SA */
-	ipsec_sa_t *sa;
-};
-
-/**
- * For input policies we also cache the traffic selectors in order to install
- * the route.
- */
-struct policy_sa_in_t {
-	/** Generic interface */
-	policy_sa_t generic;
-
-	/** Source traffic selector of this policy */
-	traffic_selector_t *src_ts;
-
-	/** Destination traffic selector of this policy */
-	traffic_selector_t *dst_ts;
-};
-
-/**
- * Create a policy_sa(_in)_t object
- */
-static policy_sa_t *policy_sa_create(private_kernel_pfkey_ipsec_t *this,
-	policy_dir_t dir, policy_type_t type, host_t *src, host_t *dst,
-	traffic_selector_t *src_ts, traffic_selector_t *dst_ts, ipsec_sa_cfg_t *cfg)
-{
-	policy_sa_t *policy;
-
-	if (dir == POLICY_IN)
-	{
-		policy_sa_in_t *in;
-		INIT(in,
-			.src_ts = src_ts->clone(src_ts),
-			.dst_ts = dst_ts->clone(dst_ts),
-		);
-		policy = &in->generic;
-	}
-	else
-	{
-		INIT(policy, .priority = 0);
-	}
-	policy->type = type;
-	policy->sa = ipsec_sa_create(this, src, dst, cfg);
-	return policy;
-}
-
-/**
- * Destroy a policy_sa(_in)_t object
- */
-static void policy_sa_destroy(policy_sa_t *policy, policy_dir_t *dir,
-							  private_kernel_pfkey_ipsec_t *this)
-{
-	if (*dir == POLICY_IN)
-	{
-		policy_sa_in_t *in = (policy_sa_in_t*)policy;
-		in->src_ts->destroy(in->src_ts);
-		in->dst_ts->destroy(in->dst_ts);
-	}
-	ipsec_sa_destroy(this, policy->sa);
-	free(policy);
-}
-
-typedef struct policy_entry_t policy_entry_t;
-
-/**
- * installed kernel policy.
- */
-struct policy_entry_t {
-	/** Index assigned by the kernel */
-	u_int32_t index;
-
-	/** Direction of this policy: in, out, forward */
-	u_int8_t direction;
-
-	/** Parameters of installed policy */
-	struct {
-		/** Subnet and port */
-		host_t *net;
-		/** Subnet mask */
-		u_int8_t mask;
-		/** Protocol */
-		u_int8_t proto;
-	} src, dst;
-
-	/** Associated route installed for this policy */
-	route_entry_t *route;
-
-	/** List of SAs this policy is used by, ordered by priority */
-	linked_list_t *used_by;
-};
-
-/**
- * Create a policy_entry_t object
- */
-static policy_entry_t *create_policy_entry(traffic_selector_t *src_ts,
-										   traffic_selector_t *dst_ts,
-										   policy_dir_t dir)
-{
-	policy_entry_t *policy;
-	INIT(policy,
-		.direction = dir,
-	);
-	u_int16_t port;
-	u_int8_t proto;
-
-	src_ts->to_subnet(src_ts, &policy->src.net, &policy->src.mask);
-	dst_ts->to_subnet(dst_ts, &policy->dst.net, &policy->dst.mask);
-
-	/* src or dest proto may be "any" (0), use more restrictive one */
-	proto = max(src_ts->get_protocol(src_ts), dst_ts->get_protocol(dst_ts));
-	/* map the ports to ICMP type/code how the Linux kernel expects them, that
-	 * is, type in src, code in dst */
-	if (proto == IPPROTO_ICMP || proto == IPPROTO_ICMPV6)
-	{
-		port = max(policy->src.net->get_port(policy->src.net),
-				   policy->dst.net->get_port(policy->dst.net));
-		policy->src.net->set_port(policy->src.net,
-								  traffic_selector_icmp_type(port));
-		policy->dst.net->set_port(policy->dst.net,
-								  traffic_selector_icmp_code(port));
-	}
-	else if (!proto)
-	{
-		proto = IPSEC_PROTO_ANY;
-	}
-	policy->src.proto = policy->dst.proto = proto;
-
-	return policy;
-}
-
-/**
- * Destroy a policy_entry_t object
- */
-static void policy_entry_destroy(policy_entry_t *policy,
-								 private_kernel_pfkey_ipsec_t *this)
-{
-	if (policy->route)
-	{
-		route_entry_destroy(policy->route);
-	}
-	if (policy->used_by)
-	{
-		policy->used_by->invoke_function(policy->used_by,
-										(linked_list_invoke_t)policy_sa_destroy,
-										 &policy->direction, this);
-		policy->used_by->destroy(policy->used_by);
-	}
-	DESTROY_IF(policy->src.net);
-	DESTROY_IF(policy->dst.net);
-	free(policy);
-}
-
-/**
- * compares two policy_entry_t
- */
-static inline bool policy_entry_equals(policy_entry_t *current,
-									   policy_entry_t *policy)
-{
-	return current->direction == policy->direction &&
-		   current->src.proto == policy->src.proto &&
-		   current->dst.proto == policy->dst.proto &&
-		   current->src.mask == policy->src.mask &&
-		   current->dst.mask == policy->dst.mask &&
-		   current->src.net->equals(current->src.net, policy->src.net) &&
-		   current->dst.net->equals(current->dst.net, policy->dst.net);
-}
-
-/**
- * compare the given kernel index with that of a policy
- */
-static inline bool policy_entry_match_byindex(policy_entry_t *current,
-											  u_int32_t *index)
-{
-	return current->index == *index;
-}
-
-/**
- * Calculate the priority of a policy
- */
-static inline u_int32_t get_priority(policy_entry_t *policy,
-									 policy_priority_t prio)
-{
-	u_int32_t priority = PRIO_BASE;
-	switch (prio)
-	{
-		case POLICY_PRIORITY_FALLBACK:
-			priority <<= 1;
-			/* fall-through */
-		case POLICY_PRIORITY_ROUTED:
-			priority <<= 1;
-			/* fall-through */
-		case POLICY_PRIORITY_DEFAULT:
-			priority <<= 1;
-			/* fall-trough */
-		case POLICY_PRIORITY_PASS:
-			break;
-	}
-	/* calculate priority based on selector size, small size = high prio */
-	priority -= policy->src.mask;
-	priority -= policy->dst.mask;
-	priority <<= 2; /* make some room for the two flags */
-	priority += policy->src.net->get_port(policy->src.net) ||
-				policy->dst.net->get_port(policy->dst.net) ?
-				0 : 2;
-	priority += policy->src.proto != IPSEC_PROTO_ANY ? 0 : 1;
-	return priority;
-}
-
-typedef struct pfkey_msg_t pfkey_msg_t;
-
-struct pfkey_msg_t
-{
-	/**
-	 * PF_KEY message base
-	 */
-	struct sadb_msg *msg;
-
-	/**
-	 * PF_KEY message extensions
-	 */
-	union {
-		struct sadb_ext *ext[SADB_EXT_MAX + 1];
-		struct {
-			struct sadb_ext *reserved;				/* SADB_EXT_RESERVED */
-			struct sadb_sa *sa;						/* SADB_EXT_SA */
-			struct sadb_lifetime *lft_current;		/* SADB_EXT_LIFETIME_CURRENT */
-			struct sadb_lifetime *lft_hard;			/* SADB_EXT_LIFETIME_HARD */
-			struct sadb_lifetime *lft_soft;			/* SADB_EXT_LIFETIME_SOFT */
-			struct sadb_address *src;				/* SADB_EXT_ADDRESS_SRC */
-			struct sadb_address *dst;				/* SADB_EXT_ADDRESS_DST */
-			struct sadb_address *proxy;				/* SADB_EXT_ADDRESS_PROXY */
-			struct sadb_key *key_auth;				/* SADB_EXT_KEY_AUTH */
-			struct sadb_key *key_encr;				/* SADB_EXT_KEY_ENCRYPT */
-			struct sadb_ident *id_src;				/* SADB_EXT_IDENTITY_SRC */
-			struct sadb_ident *id_dst;				/* SADB_EXT_IDENTITY_DST */
-			struct sadb_sens *sensitivity;			/* SADB_EXT_SENSITIVITY */
-			struct sadb_prop *proposal;				/* SADB_EXT_PROPOSAL */
-			struct sadb_supported *supported_auth;	/* SADB_EXT_SUPPORTED_AUTH */
-			struct sadb_supported *supported_encr;	/* SADB_EXT_SUPPORTED_ENCRYPT */
-			struct sadb_spirange *spirange;			/* SADB_EXT_SPIRANGE */
-			struct sadb_x_kmprivate *x_kmprivate;	/* SADB_X_EXT_KMPRIVATE */
-			struct sadb_x_policy *x_policy;			/* SADB_X_EXT_POLICY */
-			struct sadb_x_sa2 *x_sa2;				/* SADB_X_EXT_SA2 */
-			struct sadb_x_nat_t_type *x_natt_type;	/* SADB_X_EXT_NAT_T_TYPE */
-			struct sadb_x_nat_t_port *x_natt_sport;	/* SADB_X_EXT_NAT_T_SPORT */
-			struct sadb_x_nat_t_port *x_natt_dport;	/* SADB_X_EXT_NAT_T_DPORT */
-			struct sadb_address *x_natt_oa;			/* SADB_X_EXT_NAT_T_OA */
-			struct sadb_x_sec_ctx *x_sec_ctx;		/* SADB_X_EXT_SEC_CTX */
-			struct sadb_x_kmaddress *x_kmaddress;	/* SADB_X_EXT_KMADDRESS */
-		} __attribute__((__packed__));
-	};
-};
-
-ENUM(sadb_ext_type_names, SADB_EXT_RESERVED, SADB_EXT_MAX,
-	"SADB_EXT_RESERVED",
-	"SADB_EXT_SA",
-	"SADB_EXT_LIFETIME_CURRENT",
-	"SADB_EXT_LIFETIME_HARD",
-	"SADB_EXT_LIFETIME_SOFT",
-	"SADB_EXT_ADDRESS_SRC",
-	"SADB_EXT_ADDRESS_DST",
-	"SADB_EXT_ADDRESS_PROXY",
-	"SADB_EXT_KEY_AUTH",
-	"SADB_EXT_KEY_ENCRYPT",
-	"SADB_EXT_IDENTITY_SRC",
-	"SADB_EXT_IDENTITY_DST",
-	"SADB_EXT_SENSITIVITY",
-	"SADB_EXT_PROPOSAL",
-	"SADB_EXT_SUPPORTED_AUTH",
-	"SADB_EXT_SUPPORTED_ENCRYPT",
-	"SADB_EXT_SPIRANGE",
-	"SADB_X_EXT_KMPRIVATE",
-	"SADB_X_EXT_POLICY",
-	"SADB_X_EXT_SA2",
-	"SADB_X_EXT_NAT_T_TYPE",
-	"SADB_X_EXT_NAT_T_SPORT",
-	"SADB_X_EXT_NAT_T_DPORT",
-	"SADB_X_EXT_NAT_T_OA",
-	"SADB_X_EXT_SEC_CTX",
-	"SADB_X_EXT_KMADDRESS"
-);
-
-/**
- * convert a protocol identifier to the PF_KEY sa type
- */
-static u_int8_t proto2satype(u_int8_t proto)
-{
-	switch (proto)
-	{
-		case IPPROTO_ESP:
-			return SADB_SATYPE_ESP;
-		case IPPROTO_AH:
-			return SADB_SATYPE_AH;
-		case IPPROTO_COMP:
-			return SADB_X_SATYPE_IPCOMP;
-		default:
-			return proto;
-	}
-}
-
-/**
- * convert a PF_KEY sa type to a protocol identifier
- */
-static u_int8_t satype2proto(u_int8_t satype)
-{
-	switch (satype)
-	{
-		case SADB_SATYPE_ESP:
-			return IPPROTO_ESP;
-		case SADB_SATYPE_AH:
-			return IPPROTO_AH;
-		case SADB_X_SATYPE_IPCOMP:
-			return IPPROTO_COMP;
-		default:
-			return satype;
-	}
-}
-
-/**
- * convert the general ipsec mode to the one defined in ipsec.h
- */
-static u_int8_t mode2kernel(ipsec_mode_t mode)
-{
-	switch (mode)
-	{
-		case MODE_TRANSPORT:
-			return IPSEC_MODE_TRANSPORT;
-		case MODE_TUNNEL:
-			return IPSEC_MODE_TUNNEL;
-#ifdef HAVE_IPSEC_MODE_BEET
-		case MODE_BEET:
-			return IPSEC_MODE_BEET;
-#endif
-		default:
-			return mode;
-	}
-}
-
-/**
- * convert the general policy direction to the one defined in ipsec.h
- */
-static u_int8_t dir2kernel(policy_dir_t dir)
-{
-	switch (dir)
-	{
-		case POLICY_IN:
-			return IPSEC_DIR_INBOUND;
-		case POLICY_OUT:
-			return IPSEC_DIR_OUTBOUND;
-#ifdef HAVE_IPSEC_DIR_FWD
-		case POLICY_FWD:
-			return IPSEC_DIR_FWD;
-#endif
-		default:
-			return IPSEC_DIR_INVALID;
-	}
-}
-
-/**
- * convert the policy type to the one defined in ipsec.h
- */
-static inline u_int16_t type2kernel(policy_type_t type)
-{
-	switch (type)
-	{
-		case POLICY_IPSEC:
-			return IPSEC_POLICY_IPSEC;
-		case POLICY_PASS:
-			return IPSEC_POLICY_NONE;
-		case POLICY_DROP:
-			return IPSEC_POLICY_DISCARD;
-	}
-	return type;
-}
-
-#ifdef SADB_X_MIGRATE
-/**
- * convert the policy direction in ipsec.h to the general one.
- */
-static policy_dir_t kernel2dir(u_int8_t  dir)
-{
-	switch (dir)
-	{
-		case IPSEC_DIR_INBOUND:
-			return POLICY_IN;
-		case IPSEC_DIR_OUTBOUND:
-			return POLICY_OUT;
-#ifdef HAVE_IPSEC_DIR_FWD
-		case IPSEC_DIR_FWD:
-			return POLICY_FWD;
-#endif
-		default:
-			return dir;
-	}
-}
-#endif /*SADB_X_MIGRATE*/
-
-typedef struct kernel_algorithm_t kernel_algorithm_t;
-
-/**
- * Mapping of IKEv2 algorithms to PF_KEY algorithms
- */
-struct kernel_algorithm_t {
-	/**
-	 * Identifier specified in IKEv2
-	 */
-	int ikev2;
-
-	/**
-	 * Identifier as defined in pfkeyv2.h
-	 */
-	int kernel;
-};
-
-#define END_OF_LIST -1
-
-/**
- * Algorithms for encryption
- */
-static kernel_algorithm_t encryption_algs[] = {
-/*	{ENCR_DES_IV64,				0							}, */
-	{ENCR_DES,					SADB_EALG_DESCBC			},
-	{ENCR_3DES,					SADB_EALG_3DESCBC			},
-/*	{ENCR_RC5,					0							}, */
-/*	{ENCR_IDEA,					0							}, */
-	{ENCR_CAST,					SADB_X_EALG_CASTCBC			},
-	{ENCR_BLOWFISH,				SADB_X_EALG_BLOWFISHCBC		},
-/*	{ENCR_3IDEA,				0							}, */
-/*	{ENCR_DES_IV32,				0							}, */
-	{ENCR_NULL,					SADB_EALG_NULL				},
-	{ENCR_AES_CBC,				SADB_X_EALG_AESCBC			},
-#ifdef SADB_X_EALG_AESCTR
-	{ENCR_AES_CTR,				SADB_X_EALG_AESCTR			},
-#endif
-/*  {ENCR_AES_CCM_ICV8,			SADB_X_EALG_AES_CCM_ICV8	}, */
-/*	{ENCR_AES_CCM_ICV12,		SADB_X_EALG_AES_CCM_ICV12	}, */
-/*	{ENCR_AES_CCM_ICV16,		SADB_X_EALG_AES_CCM_ICV16	}, */
-#ifdef SADB_X_EALG_AES_GCM_ICV8 /* assume the others are defined too */
-	{ENCR_AES_GCM_ICV8,			SADB_X_EALG_AES_GCM_ICV8	},
-	{ENCR_AES_GCM_ICV12,		SADB_X_EALG_AES_GCM_ICV12	},
-	{ENCR_AES_GCM_ICV16,		SADB_X_EALG_AES_GCM_ICV16	},
-#endif
-#ifdef SADB_X_EALG_CAMELLIACBC
-	{ENCR_CAMELLIA_CBC,			SADB_X_EALG_CAMELLIACBC		},
-#endif
-	{END_OF_LIST,				0							},
-};
-
-/**
- * Algorithms for integrity protection
- */
-static kernel_algorithm_t integrity_algs[] = {
-	{AUTH_HMAC_MD5_96,			SADB_AALG_MD5HMAC			},
-	{AUTH_HMAC_SHA1_96,			SADB_AALG_SHA1HMAC			},
-	{AUTH_HMAC_SHA2_256_128,	SADB_X_AALG_SHA2_256HMAC	},
-	{AUTH_HMAC_SHA2_384_192,	SADB_X_AALG_SHA2_384HMAC	},
-	{AUTH_HMAC_SHA2_512_256,	SADB_X_AALG_SHA2_512HMAC	},
-/*	{AUTH_DES_MAC,				0,							}, */
-/*	{AUTH_KPDK_MD5,				0,							}, */
-#ifdef SADB_X_AALG_AES_XCBC_MAC
-	{AUTH_AES_XCBC_96,			SADB_X_AALG_AES_XCBC_MAC,	},
-#endif
-	{END_OF_LIST,				0,							},
-};
-
-/**
- * Algorithms for IPComp, unused yet
- */
-static kernel_algorithm_t compression_algs[] = {
-/*	{IPCOMP_OUI,				0							}, */
-	{IPCOMP_DEFLATE,			SADB_X_CALG_DEFLATE			},
-#ifdef SADB_X_CALG_LZS
-	{IPCOMP_LZS,				SADB_X_CALG_LZS				},
-#endif
-#ifdef SADB_X_CALG_LZJH
-	{IPCOMP_LZJH,				SADB_X_CALG_LZJH			},
-#endif
-	{END_OF_LIST,				0							},
-};
-
-/**
- * Look up a kernel algorithm ID and its key size
- */
-static int lookup_algorithm(transform_type_t type, int ikev2)
-{
-	kernel_algorithm_t *list;
-	u_int16_t alg = 0;
-
-	switch (type)
-	{
-		case ENCRYPTION_ALGORITHM:
-			list = encryption_algs;
-			break;
-		case INTEGRITY_ALGORITHM:
-			list = integrity_algs;
-			break;
-		case COMPRESSION_ALGORITHM:
-			list = compression_algs;
-			break;
-		default:
-			return 0;
-	}
-	while (list->ikev2 != END_OF_LIST)
-	{
-		if (ikev2 == list->ikev2)
-		{
-			return list->kernel;
-		}
-		list++;
-	}
-	hydra->kernel_interface->lookup_algorithm(hydra->kernel_interface, ikev2,
-											  type, &alg, NULL);
-	return alg;
-}
-
-/**
- * Helper to set a port in a sockaddr_t, the port has to be in host order
- */
-static void set_port(sockaddr_t *addr, u_int16_t port)
-{
-	switch (addr->sa_family)
-	{
-		case AF_INET:
-		{
-			struct sockaddr_in *sin = (struct sockaddr_in*)addr;
-			sin->sin_port = htons(port);
-			break;
-		}
-		case AF_INET6:
-		{
-			struct sockaddr_in6 *sin6 = (struct sockaddr_in6*)addr;
-			sin6->sin6_port = htons(port);
-			break;
-		}
-	}
-}
-
-/**
- * Copy a host_t as sockaddr_t to the given memory location.
- * @return		the number of bytes copied
- */
-static size_t hostcpy(void *dest, host_t *host, bool include_port)
-{
-	sockaddr_t *addr = host->get_sockaddr(host), *dest_addr = dest;
-	socklen_t *len = host->get_sockaddr_len(host);
-
-	memcpy(dest, addr, *len);
-#ifdef HAVE_STRUCT_SOCKADDR_SA_LEN
-	dest_addr->sa_len = *len;
-#endif
-	if (!include_port)
-	{
-		set_port(dest_addr, 0);
-	}
-	return *len;
-}
-
-/**
- * add a host to the given sadb_msg
- */
-static void add_addr_ext(struct sadb_msg *msg, host_t *host, u_int16_t type,
-						 u_int8_t proto, u_int8_t prefixlen, bool include_port)
-{
-	struct sadb_address *addr = (struct sadb_address*)PFKEY_EXT_ADD_NEXT(msg);
-	size_t len;
-
-	addr->sadb_address_exttype = type;
-	addr->sadb_address_proto = proto;
-	addr->sadb_address_prefixlen = prefixlen;
-	len = hostcpy(addr + 1, host, include_port);
-	addr->sadb_address_len = PFKEY_LEN(sizeof(*addr) + len);
-	PFKEY_EXT_ADD(msg, addr);
-}
-
-/**
- * adds an empty address extension to the given sadb_msg
- */
-static void add_anyaddr_ext(struct sadb_msg *msg, int family, u_int8_t type)
-{
-	socklen_t len = (family == AF_INET) ? sizeof(struct sockaddr_in) :
-										  sizeof(struct sockaddr_in6);
-	struct sadb_address *addr = (struct sadb_address*)PFKEY_EXT_ADD_NEXT(msg);
-	addr->sadb_address_exttype = type;
-	sockaddr_t *saddr = (sockaddr_t*)(addr + 1);
-	saddr->sa_family = family;
-#ifdef HAVE_STRUCT_SOCKADDR_SA_LEN
-	saddr->sa_len = len;
-#endif
-	addr->sadb_address_len = PFKEY_LEN(sizeof(*addr) + len);
-	PFKEY_EXT_ADD(msg, addr);
-}
-
-#ifdef HAVE_NATT
-/**
- * add udp encap extensions to a sadb_msg
- */
-static void add_encap_ext(struct sadb_msg *msg, host_t *src, host_t *dst)
-{
-	struct sadb_x_nat_t_type* nat_type;
-	struct sadb_x_nat_t_port* nat_port;
-
-	nat_type = (struct sadb_x_nat_t_type*)PFKEY_EXT_ADD_NEXT(msg);
-	nat_type->sadb_x_nat_t_type_exttype = SADB_X_EXT_NAT_T_TYPE;
-	nat_type->sadb_x_nat_t_type_len = PFKEY_LEN(sizeof(*nat_type));
-	nat_type->sadb_x_nat_t_type_type = UDP_ENCAP_ESPINUDP;
-	PFKEY_EXT_ADD(msg, nat_type);
-
-	nat_port = (struct sadb_x_nat_t_port*)PFKEY_EXT_ADD_NEXT(msg);
-	nat_port->sadb_x_nat_t_port_exttype = SADB_X_EXT_NAT_T_SPORT;
-	nat_port->sadb_x_nat_t_port_len = PFKEY_LEN(sizeof(*nat_port));
-	nat_port->sadb_x_nat_t_port_port = htons(src->get_port(src));
-	PFKEY_EXT_ADD(msg, nat_port);
-
-	nat_port = (struct sadb_x_nat_t_port*)PFKEY_EXT_ADD_NEXT(msg);
-	nat_port->sadb_x_nat_t_port_exttype = SADB_X_EXT_NAT_T_DPORT;
-	nat_port->sadb_x_nat_t_port_len = PFKEY_LEN(sizeof(*nat_port));
-	nat_port->sadb_x_nat_t_port_port = htons(dst->get_port(dst));
-	PFKEY_EXT_ADD(msg, nat_port);
-}
-#endif /*HAVE_NATT*/
-
-/**
- * Convert a sadb_address to a traffic_selector
- */
-static traffic_selector_t* sadb_address2ts(struct sadb_address *address)
-{
-	traffic_selector_t *ts;
-	host_t *host;
-	u_int8_t proto;
-
-	proto = address->sadb_address_proto;
-	proto = proto == IPSEC_PROTO_ANY ? 0 : proto;
-
-	/* The Linux 2.6 kernel does not set the protocol and port information
-	 * in the src and dst sadb_address extensions of the SADB_ACQUIRE message.
-	 */
-	host = host_create_from_sockaddr((sockaddr_t*)&address[1]);
-	ts = traffic_selector_create_from_subnet(host,
-											 address->sadb_address_prefixlen,
-											 proto, host->get_port(host),
-											 host->get_port(host) ?: 65535);
-	return ts;
-}
-
-/**
- * Parses a pfkey message received from the kernel
- */
-static status_t parse_pfkey_message(struct sadb_msg *msg, pfkey_msg_t *out)
-{
-	struct sadb_ext* ext;
-	size_t len;
-
-	memset(out, 0, sizeof(pfkey_msg_t));
-	out->msg = msg;
-
-	len = msg->sadb_msg_len;
-	len -= PFKEY_LEN(sizeof(struct sadb_msg));
-
-	ext = (struct sadb_ext*)(((char*)msg) + sizeof(struct sadb_msg));
-
-	while (len >= PFKEY_LEN(sizeof(struct sadb_ext)))
-	{
-		DBG3(DBG_KNL, "  %N", sadb_ext_type_names, ext->sadb_ext_type);
-		if (ext->sadb_ext_len < PFKEY_LEN(sizeof(struct sadb_ext)) ||
-			ext->sadb_ext_len > len)
-		{
-			DBG1(DBG_KNL, "length of %N extension is invalid",
-						   sadb_ext_type_names, ext->sadb_ext_type);
-			break;
-		}
-
-		if ((ext->sadb_ext_type > SADB_EXT_MAX) || (!ext->sadb_ext_type))
-		{
-			DBG1(DBG_KNL, "type of PF_KEY extension (%d) is invalid",
-						   ext->sadb_ext_type);
-			break;
-		}
-
-		if (out->ext[ext->sadb_ext_type])
-		{
-			DBG1(DBG_KNL, "duplicate %N extension",
-						   sadb_ext_type_names, ext->sadb_ext_type);
-			break;
-		}
-
-		out->ext[ext->sadb_ext_type] = ext;
-		ext = PFKEY_EXT_NEXT_LEN(ext, len);
-	}
-
-	if (len)
-	{
-		DBG1(DBG_KNL, "PF_KEY message length is invalid");
-		return FAILED;
-	}
-
-	return SUCCESS;
-}
-
-/**
- * Send a message to a specific PF_KEY socket and handle the response.
- */
-static status_t pfkey_send_socket(private_kernel_pfkey_ipsec_t *this, int socket,
-					struct sadb_msg *in, struct sadb_msg **out, size_t *out_len)
-{
-	unsigned char buf[PFKEY_BUFFER_SIZE];
-	struct sadb_msg *msg;
-	int in_len, len;
-
-	this->mutex_pfkey->lock(this->mutex_pfkey);
-
-	/* FIXME: our usage of sequence numbers is probably wrong. check RFC 2367,
-	 * in particular the behavior in response to an SADB_ACQUIRE. */
-	in->sadb_msg_seq = ++this->seq;
-	in->sadb_msg_pid = getpid();
-
-	in_len = PFKEY_USER_LEN(in->sadb_msg_len);
-
-	while (TRUE)
-	{
-		len = send(socket, in, in_len, 0);
-
-		if (len != in_len)
-		{
-			if (errno == EINTR)
-			{
-				/* interrupted, try again */
-				continue;
-			}
-			this->mutex_pfkey->unlock(this->mutex_pfkey);
-			DBG1(DBG_KNL, "error sending to PF_KEY socket: %s",
-						   strerror(errno));
-			return FAILED;
-		}
-		break;
-	}
-
-	while (TRUE)
-	{
-		msg = (struct sadb_msg*)buf;
-
-		len = recv(socket, buf, sizeof(buf), 0);
-
-		if (len < 0)
-		{
-			if (errno == EINTR)
-			{
-				DBG1(DBG_KNL, "got interrupted");
-				/* interrupted, try again */
-				continue;
-			}
-			DBG1(DBG_KNL, "error reading from PF_KEY socket: %s",
-						   strerror(errno));
-			this->mutex_pfkey->unlock(this->mutex_pfkey);
-			return FAILED;
-		}
-		if (len < sizeof(struct sadb_msg) ||
-			msg->sadb_msg_len < PFKEY_LEN(sizeof(struct sadb_msg)))
-		{
-			DBG1(DBG_KNL, "received corrupted PF_KEY message");
-			this->mutex_pfkey->unlock(this->mutex_pfkey);
-			return FAILED;
-		}
-		if (msg->sadb_msg_len > len / PFKEY_ALIGNMENT)
-		{
-			DBG1(DBG_KNL, "buffer was too small to receive the complete PF_KEY "
-					      "message");
-			this->mutex_pfkey->unlock(this->mutex_pfkey);
-			return FAILED;
-		}
-		if (msg->sadb_msg_pid != in->sadb_msg_pid)
-		{
-			DBG2(DBG_KNL, "received PF_KEY message is not intended for us");
-			continue;
-		}
-		if (msg->sadb_msg_seq != this->seq)
-		{
-			DBG2(DBG_KNL, "received PF_KEY message with unexpected sequence "
-						  "number, was %d expected %d", msg->sadb_msg_seq,
-						  this->seq);
-			if (msg->sadb_msg_seq == 0)
-			{
-				/* FreeBSD and Mac OS X do this for the response to
-				 * SADB_X_SPDGET (but not for the response to SADB_GET).
-				 * FreeBSD: 'key_spdget' in /usr/src/sys/netipsec/key.c. */
-			}
-			else if (msg->sadb_msg_seq < this->seq)
-			{
-				continue;
-			}
-			else
-			{
-				this->mutex_pfkey->unlock(this->mutex_pfkey);
-				return FAILED;
-			}
-		}
-		if (msg->sadb_msg_type != in->sadb_msg_type)
-		{
-			DBG2(DBG_KNL, "received PF_KEY message of wrong type, "
-						  "was %d expected %d, ignoring", msg->sadb_msg_type,
-						   in->sadb_msg_type);
-		}
-		break;
-	}
-
-	*out_len = len;
-	*out = (struct sadb_msg*)malloc(len);
-	memcpy(*out, buf, len);
-
-	this->mutex_pfkey->unlock(this->mutex_pfkey);
-	return SUCCESS;
-}
-
-/**
- * Send a message to the default PF_KEY socket and handle the response.
- */
-static status_t pfkey_send(private_kernel_pfkey_ipsec_t *this,
-						   struct sadb_msg *in, struct sadb_msg **out,
-						   size_t *out_len)
-{
-	return pfkey_send_socket(this, this->socket, in, out, out_len);
-}
-
-/**
- * Process a SADB_ACQUIRE message from the kernel
- */
-static void process_acquire(private_kernel_pfkey_ipsec_t *this,
-							struct sadb_msg* msg)
-{
-	pfkey_msg_t response;
-	u_int32_t index, reqid = 0;
-	traffic_selector_t *src_ts, *dst_ts;
-	policy_entry_t *policy;
-	policy_sa_t *sa;
-
-	switch (msg->sadb_msg_satype)
-	{
-		case SADB_SATYPE_UNSPEC:
-		case SADB_SATYPE_ESP:
-		case SADB_SATYPE_AH:
-			break;
-		default:
-			/* acquire for AH/ESP only */
-			return;
-	}
-	DBG2(DBG_KNL, "received an SADB_ACQUIRE");
-
-	if (parse_pfkey_message(msg, &response) != SUCCESS)
-	{
-		DBG1(DBG_KNL, "parsing SADB_ACQUIRE from kernel failed");
-		return;
-	}
-
-	index = response.x_policy->sadb_x_policy_id;
-	this->mutex->lock(this->mutex);
-	if (this->policies->find_first(this->policies,
-								(linked_list_match_t)policy_entry_match_byindex,
-								(void**)&policy, &index) == SUCCESS &&
-		policy->used_by->get_first(policy->used_by, (void**)&sa) == SUCCESS)
-	{
-		reqid = sa->sa->cfg.reqid;
-	}
-	else
-	{
-		DBG1(DBG_KNL, "received an SADB_ACQUIRE with policy id %d but no "
-					  "matching policy found", index);
-	}
-	this->mutex->unlock(this->mutex);
-
-	src_ts = sadb_address2ts(response.src);
-	dst_ts = sadb_address2ts(response.dst);
-
-	hydra->kernel_interface->acquire(hydra->kernel_interface, reqid, src_ts,
-									 dst_ts);
-}
-
-/**
- * Process a SADB_EXPIRE message from the kernel
- */
-static void process_expire(private_kernel_pfkey_ipsec_t *this,
-						   struct sadb_msg* msg)
-{
-	pfkey_msg_t response;
-	u_int8_t protocol;
-	u_int32_t spi;
-	host_t *dst;
-	bool hard;
-
-	DBG2(DBG_KNL, "received an SADB_EXPIRE");
-
-	if (parse_pfkey_message(msg, &response) != SUCCESS)
-	{
-		DBG1(DBG_KNL, "parsing SADB_EXPIRE from kernel failed");
-		return;
-	}
-
-	protocol = satype2proto(msg->sadb_msg_satype);
-	spi = response.sa->sadb_sa_spi;
-	hard = response.lft_hard != NULL;
-
-	if (protocol == IPPROTO_ESP || protocol == IPPROTO_AH)
-	{
-		dst = host_create_from_sockaddr((sockaddr_t*)(response.dst + 1));
-		if (dst)
-		{
-			hydra->kernel_interface->expire(hydra->kernel_interface, protocol,
-											spi, dst, hard);
-			dst->destroy(dst);
-		}
-	}
-}
-
-#ifdef SADB_X_MIGRATE
-/**
- * Process a SADB_X_MIGRATE message from the kernel
- */
-static void process_migrate(private_kernel_pfkey_ipsec_t *this,
-							struct sadb_msg* msg)
-{
-	pfkey_msg_t response;
-	traffic_selector_t *src_ts, *dst_ts;
-	policy_dir_t dir;
-	u_int32_t reqid = 0;
-	host_t *local = NULL, *remote = NULL;
-
-	DBG2(DBG_KNL, "received an SADB_X_MIGRATE");
-
-	if (parse_pfkey_message(msg, &response) != SUCCESS)
-	{
-		DBG1(DBG_KNL, "parsing SADB_X_MIGRATE from kernel failed");
-		return;
-	}
-	src_ts = sadb_address2ts(response.src);
-	dst_ts = sadb_address2ts(response.dst);
-	dir = kernel2dir(response.x_policy->sadb_x_policy_dir);
-	DBG2(DBG_KNL, "  policy %R === %R %N, id %u", src_ts, dst_ts,
-					 policy_dir_names, dir);
-
-	/* SADB_X_EXT_KMADDRESS is not present in unpatched kernels < 2.6.28 */
-	if (response.x_kmaddress)
-	{
-		sockaddr_t *local_addr, *remote_addr;
-		u_int32_t local_len;
-
-		local_addr  = (sockaddr_t*)&response.x_kmaddress[1];
-		local = host_create_from_sockaddr(local_addr);
-		local_len = (local_addr->sa_family == AF_INET6)?
-					sizeof(struct sockaddr_in6) : sizeof(struct sockaddr_in);
-		remote_addr = (sockaddr_t*)((u_int8_t*)local_addr + local_len);
-		remote = host_create_from_sockaddr(remote_addr);
-		DBG2(DBG_KNL, "  kmaddress: %H...%H", local, remote);
-	}
-
-	if (src_ts && dst_ts && local && remote)
-	{
-		hydra->kernel_interface->migrate(hydra->kernel_interface, reqid,
-										 src_ts, dst_ts, dir, local, remote);
-	}
-	else
-	{
-		DESTROY_IF(src_ts);
-		DESTROY_IF(dst_ts);
-		DESTROY_IF(local);
-		DESTROY_IF(remote);
-	}
-}
-#endif /*SADB_X_MIGRATE*/
-
-#ifdef SADB_X_NAT_T_NEW_MAPPING
-/**
- * Process a SADB_X_NAT_T_NEW_MAPPING message from the kernel
- */
-static void process_mapping(private_kernel_pfkey_ipsec_t *this,
-							struct sadb_msg* msg)
-{
-	pfkey_msg_t response;
-	u_int32_t spi;
-	sockaddr_t *sa;
-	host_t *dst, *new;
-
-	DBG2(DBG_KNL, "received an SADB_X_NAT_T_NEW_MAPPING");
-
-	if (parse_pfkey_message(msg, &response) != SUCCESS)
-	{
-		DBG1(DBG_KNL, "parsing SADB_X_NAT_T_NEW_MAPPING from kernel failed");
-		return;
-	}
-
-	if (!response.x_sa2)
-	{
-		DBG1(DBG_KNL, "received SADB_X_NAT_T_NEW_MAPPING is missing required "
-					  "information");
-		return;
-	}
-
-	spi = response.sa->sadb_sa_spi;
-
-	if (satype2proto(msg->sadb_msg_satype) != IPPROTO_ESP)
-	{
-		return;
-	}
-
-	sa = (sockaddr_t*)(response.dst + 1);
-	dst = host_create_from_sockaddr(sa);
-	switch (sa->sa_family)
-	{
-		case AF_INET:
-		{
-			struct sockaddr_in *sin = (struct sockaddr_in*)sa;
-			sin->sin_port = htons(response.x_natt_dport->sadb_x_nat_t_port_port);
-			break;
-		}
-		case AF_INET6:
-		{
-			struct sockaddr_in6 *sin6 = (struct sockaddr_in6*)sa;
-			sin6->sin6_port = htons(response.x_natt_dport->sadb_x_nat_t_port_port);
-			break;
-		}
-		default:
-			break;
-	}
-	if (dst)
-	{
-		new = host_create_from_sockaddr(sa);
-		if (new)
-		{
-			hydra->kernel_interface->mapping(hydra->kernel_interface,
-											 IPPROTO_ESP, spi, dst, new);
-			new->destroy(new);
-		}
-		dst->destroy(dst);
-	}
-}
-#endif /*SADB_X_NAT_T_NEW_MAPPING*/
-
-/**
- * Receives events from kernel
- */
-static bool receive_events(private_kernel_pfkey_ipsec_t *this, int fd,
-						   watcher_event_t event)
-{
-	unsigned char buf[PFKEY_BUFFER_SIZE];
-	struct sadb_msg *msg = (struct sadb_msg*)buf;
-	int len;
-
-	len = recvfrom(this->socket_events, buf, sizeof(buf), MSG_DONTWAIT, NULL, 0);
-	if (len < 0)
-	{
-		switch (errno)
-		{
-			case EINTR:
-				/* interrupted, try again */
-				return TRUE;
-			case EAGAIN:
-				/* no data ready, select again */
-				return TRUE;
-			default:
-				DBG1(DBG_KNL, "unable to receive from PF_KEY event socket");
-				sleep(1);
-				return TRUE;
-		}
-	}
-
-	if (len < sizeof(struct sadb_msg) ||
-		msg->sadb_msg_len < PFKEY_LEN(sizeof(struct sadb_msg)))
-	{
-		DBG2(DBG_KNL, "received corrupted PF_KEY message");
-		return TRUE;
-	}
-	if (msg->sadb_msg_pid != 0)
-	{	/* not from kernel. not interested, try another one */
-		return TRUE;
-	}
-	if (msg->sadb_msg_len > len / PFKEY_ALIGNMENT)
-	{
-		DBG1(DBG_KNL, "buffer was too small to receive the complete "
-					  "PF_KEY message");
-		return TRUE;
-	}
-
-	switch (msg->sadb_msg_type)
-	{
-		case SADB_ACQUIRE:
-			process_acquire(this, msg);
-			break;
-		case SADB_EXPIRE:
-			process_expire(this, msg);
-			break;
-#ifdef SADB_X_MIGRATE
-		case SADB_X_MIGRATE:
-			process_migrate(this, msg);
-			break;
-#endif /*SADB_X_MIGRATE*/
-#ifdef SADB_X_NAT_T_NEW_MAPPING
-		case SADB_X_NAT_T_NEW_MAPPING:
-			process_mapping(this, msg);
-			break;
-#endif /*SADB_X_NAT_T_NEW_MAPPING*/
-		default:
-			break;
-	}
-
-	return TRUE;
-}
-
-/**
- * Get an SPI for a specific protocol from the kernel.
- */
-
-static status_t get_spi_internal(private_kernel_pfkey_ipsec_t *this,
-	host_t *src, host_t *dst, u_int8_t proto, u_int32_t min, u_int32_t max,
-	u_int32_t *spi)
-{
-	unsigned char request[PFKEY_BUFFER_SIZE];
-	struct sadb_msg *msg, *out;
-	struct sadb_spirange *range;
-	pfkey_msg_t response;
-	u_int32_t received_spi = 0;
-	size_t len;
-
-	memset(&request, 0, sizeof(request));
-
-	msg = (struct sadb_msg*)request;
-	msg->sadb_msg_version = PF_KEY_V2;
-	msg->sadb_msg_type = SADB_GETSPI;
-	msg->sadb_msg_satype = proto2satype(proto);
-	msg->sadb_msg_len = PFKEY_LEN(sizeof(struct sadb_msg));
-
-	add_addr_ext(msg, src, SADB_EXT_ADDRESS_SRC, 0, 0, FALSE);
-	add_addr_ext(msg, dst, SADB_EXT_ADDRESS_DST, 0, 0, FALSE);
-
-	range = (struct sadb_spirange*)PFKEY_EXT_ADD_NEXT(msg);
-	range->sadb_spirange_exttype = SADB_EXT_SPIRANGE;
-	range->sadb_spirange_len = PFKEY_LEN(sizeof(struct sadb_spirange));
-	range->sadb_spirange_min = min;
-	range->sadb_spirange_max = max;
-	PFKEY_EXT_ADD(msg, range);
-
-	if (pfkey_send(this, msg, &out, &len) == SUCCESS)
-	{
-		if (out->sadb_msg_errno)
-		{
-			DBG1(DBG_KNL, "allocating SPI failed: %s (%d)",
-						   strerror(out->sadb_msg_errno), out->sadb_msg_errno);
-		}
-		else if (parse_pfkey_message(out, &response) == SUCCESS)
-		{
-			received_spi = response.sa->sadb_sa_spi;
-		}
-		free(out);
-	}
-
-	if (received_spi == 0)
-	{
-		return FAILED;
-	}
-
-	*spi = received_spi;
-	return SUCCESS;
-}
-
-METHOD(kernel_ipsec_t, get_spi, status_t,
-	private_kernel_pfkey_ipsec_t *this, host_t *src, host_t *dst,
-	u_int8_t protocol, u_int32_t *spi)
-{
-	if (get_spi_internal(this, src, dst, protocol,
-						 0xc0000000, 0xcFFFFFFF, spi) != SUCCESS)
-	{
-		DBG1(DBG_KNL, "unable to get SPI");
-		return FAILED;
-	}
-
-	DBG2(DBG_KNL, "got SPI %.8x", ntohl(*spi));
-	return SUCCESS;
-}
-
-METHOD(kernel_ipsec_t, get_cpi, status_t,
-	private_kernel_pfkey_ipsec_t *this, host_t *src, host_t *dst,
-	u_int16_t *cpi)
-{
-	u_int32_t received_spi = 0;
-
-	DBG2(DBG_KNL, "getting CPI");
-
-	if (get_spi_internal(this, src, dst, IPPROTO_COMP,
-						 0x100, 0xEFFF, &received_spi) != SUCCESS)
-	{
-		DBG1(DBG_KNL, "unable to get CPI");
-		return FAILED;
-	}
-
-	*cpi = htons((u_int16_t)ntohl(received_spi));
-
-	DBG2(DBG_KNL, "got CPI %.4x", ntohs(*cpi));
-	return SUCCESS;
-}
-
-METHOD(kernel_ipsec_t, add_sa, status_t,
-	private_kernel_pfkey_ipsec_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)
-{
-	unsigned char request[PFKEY_BUFFER_SIZE];
-	struct sadb_msg *msg, *out;
-	struct sadb_sa *sa;
-	struct sadb_x_sa2 *sa2;
-	struct sadb_lifetime *lft;
-	struct sadb_key *key;
-	size_t len;
-
-	/* if IPComp is used, we install an additional IPComp SA. if the cpi is 0
-	 * we are in the recursive call below */
-	if (ipcomp != IPCOMP_NONE && cpi != 0)
-	{
-		lifetime_cfg_t lft = {{0,0,0},{0,0,0},{0,0,0}};
-		add_sa(this, src, dst, htonl(ntohs(cpi)), IPPROTO_COMP, reqid, mark,
-			   tfc, &lft, ENCR_UNDEFINED, chunk_empty, AUTH_UNDEFINED,
-			   chunk_empty, mode, ipcomp, 0, 0, FALSE, FALSE, FALSE, inbound,
-			   update, NULL, NULL);
-		ipcomp = IPCOMP_NONE;
-		/* use transport mode ESP SA, IPComp uses tunnel mode */
-		mode = MODE_TRANSPORT;
-	}
-
-	if (update)
-	{
-		/* As we didn't know the reqid during SPI allocation, we used reqid
-		 * zero. Unfortunately we can't SADB_UPDATE to the new reqid, hence we
-		 * have to delete the SPI allocation state manually. The reqid
-		 * selector does not count for that, therefore we have to delete
-		 * that state before installing the new SA to avoid deleting the
-		 * the new state after installing it. */
-		mark_t zeromark = {0, 0};
-
-		if (this->public.interface.del_sa(&this->public.interface,
-					src, dst, spi, protocol, 0, zeromark) != SUCCESS)
-		{
-			DBG1(DBG_KNL, "deleting SPI allocation SA failed");
-		}
-	}
-
-	memset(&request, 0, sizeof(request));
-
-	DBG2(DBG_KNL, "adding SAD entry with SPI %.8x and reqid {%u}",
-				   ntohl(spi), reqid);
-
-	msg = (struct sadb_msg*)request;
-	msg->sadb_msg_version = PF_KEY_V2;
-	msg->sadb_msg_type = SADB_ADD;
-	msg->sadb_msg_satype = proto2satype(protocol);
-	msg->sadb_msg_len = PFKEY_LEN(sizeof(struct sadb_msg));
-
-#ifdef __APPLE__
-	if (encap)
-	{
-		struct sadb_sa_2 *sa_2;
-		sa_2 = (struct sadb_sa_2*)PFKEY_EXT_ADD_NEXT(msg);
-		sa_2->sadb_sa_natt_port = dst->get_port(dst);
-		sa = &sa_2->sa;
-		sa->sadb_sa_flags |= SADB_X_EXT_NATT;
-		len = sizeof(struct sadb_sa_2);
-	}
-	else
-#endif
-	{
-		sa = (struct sadb_sa*)PFKEY_EXT_ADD_NEXT(msg);
-		len = sizeof(struct sadb_sa);
-	}
-	sa->sadb_sa_exttype = SADB_EXT_SA;
-	sa->sadb_sa_len = PFKEY_LEN(len);
-	sa->sadb_sa_spi = spi;
-	if (protocol == IPPROTO_COMP)
-	{
-		sa->sadb_sa_encrypt = lookup_algorithm(COMPRESSION_ALGORITHM, ipcomp);
-	}
-	else
-	{
-		/* Linux interprets sadb_sa_replay as number of packets/bits in the
-		 * replay window, whereas on BSD it's the size of the window in bytes */
-#ifdef __linux__
-		sa->sadb_sa_replay = min(replay_window, 32);
-#else
-		sa->sadb_sa_replay = (replay_window + 7) / 8;
-#endif
-		sa->sadb_sa_auth = lookup_algorithm(INTEGRITY_ALGORITHM, int_alg);
-		sa->sadb_sa_encrypt = lookup_algorithm(ENCRYPTION_ALGORITHM, enc_alg);
-	}
-	PFKEY_EXT_ADD(msg, sa);
-
-	sa2 = (struct sadb_x_sa2*)PFKEY_EXT_ADD_NEXT(msg);
-	sa2->sadb_x_sa2_exttype = SADB_X_EXT_SA2;
-	sa2->sadb_x_sa2_len = PFKEY_LEN(sizeof(struct sadb_spirange));
-	sa2->sadb_x_sa2_mode = mode2kernel(mode);
-	sa2->sadb_x_sa2_reqid = reqid;
-	PFKEY_EXT_ADD(msg, sa2);
-
-	add_addr_ext(msg, src, SADB_EXT_ADDRESS_SRC, 0, 0, FALSE);
-	add_addr_ext(msg, dst, SADB_EXT_ADDRESS_DST, 0, 0, FALSE);
-
-	lft = (struct sadb_lifetime*)PFKEY_EXT_ADD_NEXT(msg);
-	lft->sadb_lifetime_exttype = SADB_EXT_LIFETIME_SOFT;
-	lft->sadb_lifetime_len = PFKEY_LEN(sizeof(struct sadb_lifetime));
-	lft->sadb_lifetime_allocations = lifetime->packets.rekey;
-	lft->sadb_lifetime_bytes = lifetime->bytes.rekey;
-	lft->sadb_lifetime_addtime = lifetime->time.rekey;
-	lft->sadb_lifetime_usetime = 0; /* we only use addtime */
-	PFKEY_EXT_ADD(msg, lft);
-
-	lft = (struct sadb_lifetime*)PFKEY_EXT_ADD_NEXT(msg);
-	lft->sadb_lifetime_exttype = SADB_EXT_LIFETIME_HARD;
-	lft->sadb_lifetime_len = PFKEY_LEN(sizeof(struct sadb_lifetime));
-	lft->sadb_lifetime_allocations = lifetime->packets.life;
-	lft->sadb_lifetime_bytes = lifetime->bytes.life;
-	lft->sadb_lifetime_addtime = lifetime->time.life;
-	lft->sadb_lifetime_usetime = 0; /* we only use addtime */
-	PFKEY_EXT_ADD(msg, lft);
-
-	if (enc_alg != ENCR_UNDEFINED)
-	{
-		if (!sa->sadb_sa_encrypt)
-		{
-			DBG1(DBG_KNL, "algorithm %N not supported by kernel!",
-						   encryption_algorithm_names, enc_alg);
-			return FAILED;
-		}
-		DBG2(DBG_KNL, "  using encryption algorithm %N with key size %d",
-						 encryption_algorithm_names, enc_alg, enc_key.len * 8);
-
-		key = (struct sadb_key*)PFKEY_EXT_ADD_NEXT(msg);
-		key->sadb_key_exttype = SADB_EXT_KEY_ENCRYPT;
-		key->sadb_key_bits = enc_key.len * 8;
-		key->sadb_key_len = PFKEY_LEN(sizeof(struct sadb_key) + enc_key.len);
-		memcpy(key + 1, enc_key.ptr, enc_key.len);
-
-		PFKEY_EXT_ADD(msg, key);
-	}
-
-	if (int_alg != AUTH_UNDEFINED)
-	{
-		if (!sa->sadb_sa_auth)
-		{
-			DBG1(DBG_KNL, "algorithm %N not supported by kernel!",
-						   integrity_algorithm_names, int_alg);
-			return FAILED;
-		}
-		DBG2(DBG_KNL, "  using integrity algorithm %N with key size %d",
-						 integrity_algorithm_names, int_alg, int_key.len * 8);
-
-		key = (struct sadb_key*)PFKEY_EXT_ADD_NEXT(msg);
-		key->sadb_key_exttype = SADB_EXT_KEY_AUTH;
-		key->sadb_key_bits = int_key.len * 8;
-		key->sadb_key_len = PFKEY_LEN(sizeof(struct sadb_key) + int_key.len);
-		memcpy(key + 1, int_key.ptr, int_key.len);
-
-		PFKEY_EXT_ADD(msg, key);
-	}
-
-#ifdef HAVE_NATT
-	if (encap)
-	{
-		add_encap_ext(msg, src, dst);
-	}
-#endif /*HAVE_NATT*/
-
-	if (pfkey_send(this, msg, &out, &len) != SUCCESS)
-	{
-		DBG1(DBG_KNL, "unable to add SAD entry with SPI %.8x", ntohl(spi));
-		return FAILED;
-	}
-	else if (out->sadb_msg_errno)
-	{
-		DBG1(DBG_KNL, "unable to add SAD entry with SPI %.8x: %s (%d)",
-				ntohl(spi), strerror(out->sadb_msg_errno), out->sadb_msg_errno);
-		free(out);
-		return FAILED;
-	}
-
-	free(out);
-	return SUCCESS;
-}
-
-METHOD(kernel_ipsec_t, update_sa, status_t,
-	private_kernel_pfkey_ipsec_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)
-{
-	unsigned char request[PFKEY_BUFFER_SIZE];
-	struct sadb_msg *msg, *out;
-	struct sadb_sa *sa;
-	pfkey_msg_t response;
-	size_t len;
-
-	/* we can't update the SA if any of the ip addresses have changed.
-	 * that's because we can't use SADB_UPDATE and by deleting and readding the
-	 * SA the sequence numbers would get lost */
-	if (!src->ip_equals(src, new_src) ||
-		!dst->ip_equals(dst, new_dst))
-	{
-		DBG1(DBG_KNL, "unable to update SAD entry with SPI %.8x: address "
-					  "changes are not supported", ntohl(spi));
-		return NOT_SUPPORTED;
-	}
-
-	/* if IPComp is used, we first update the IPComp SA */
-	if (cpi)
-	{
-		update_sa(this, htonl(ntohs(cpi)), IPPROTO_COMP, 0,
-				  src, dst, new_src, new_dst, FALSE, FALSE, mark);
-	}
-
-	memset(&request, 0, sizeof(request));
-
-	DBG2(DBG_KNL, "querying SAD entry with SPI %.8x", ntohl(spi));
-
-	msg = (struct sadb_msg*)request;
-	msg->sadb_msg_version = PF_KEY_V2;
-	msg->sadb_msg_type = SADB_GET;
-	msg->sadb_msg_satype = proto2satype(protocol);
-	msg->sadb_msg_len = PFKEY_LEN(sizeof(struct sadb_msg));
-
-	sa = (struct sadb_sa*)PFKEY_EXT_ADD_NEXT(msg);
-	sa->sadb_sa_exttype = SADB_EXT_SA;
-	sa->sadb_sa_len = PFKEY_LEN(sizeof(struct sadb_sa));
-	sa->sadb_sa_spi = spi;
-	PFKEY_EXT_ADD(msg, sa);
-
-	/* the kernel wants a SADB_EXT_ADDRESS_SRC to be present even though
-	 * it is not used for anything. */
-	add_anyaddr_ext(msg, dst->get_family(dst), SADB_EXT_ADDRESS_SRC);
-	add_addr_ext(msg, dst, SADB_EXT_ADDRESS_DST, 0, 0, FALSE);
-
-	if (pfkey_send(this, msg, &out, &len) != SUCCESS)
-	{
-		DBG1(DBG_KNL, "unable to query SAD entry with SPI %.8x", ntohl(spi));
-		return FAILED;
-	}
-	else if (out->sadb_msg_errno)
-	{
-		DBG1(DBG_KNL, "unable to query SAD entry with SPI %.8x: %s (%d)",
-					   ntohl(spi), strerror(out->sadb_msg_errno),
-					   out->sadb_msg_errno);
-		free(out);
-		return FAILED;
-	}
-	else if (parse_pfkey_message(out, &response) != SUCCESS)
-	{
-		DBG1(DBG_KNL, "unable to query SAD entry with SPI %.8x: parsing "
-					  "response from kernel failed", ntohl(spi));
-		free(out);
-		return FAILED;
-	}
-
-	DBG2(DBG_KNL, "updating SAD entry with SPI %.8x from %#H..%#H to %#H..%#H",
-				   ntohl(spi), src, dst, new_src, new_dst);
-
-	memset(&request, 0, sizeof(request));
-
-	msg = (struct sadb_msg*)request;
-	msg->sadb_msg_version = PF_KEY_V2;
-	msg->sadb_msg_type = SADB_UPDATE;
-	msg->sadb_msg_satype = proto2satype(protocol);
-	msg->sadb_msg_len = PFKEY_LEN(sizeof(struct sadb_msg));
-
-#ifdef __APPLE__
-	{
-		struct sadb_sa_2 *sa_2;
-		sa_2 = (struct sadb_sa_2*)PFKEY_EXT_ADD_NEXT(msg);
-		sa_2->sa.sadb_sa_len = PFKEY_LEN(sizeof(struct sadb_sa_2));
-		memcpy(&sa_2->sa, response.sa, sizeof(struct sadb_sa));
-		if (encap)
-		{
-			sa_2->sadb_sa_natt_port = new_dst->get_port(new_dst);
-			sa_2->sa.sadb_sa_flags |= SADB_X_EXT_NATT;
-		}
-	}
-#else
-	PFKEY_EXT_COPY(msg, response.sa);
-#endif
-	PFKEY_EXT_COPY(msg, response.x_sa2);
-
-	PFKEY_EXT_COPY(msg, response.src);
-	PFKEY_EXT_COPY(msg, response.dst);
-
-	PFKEY_EXT_COPY(msg, response.lft_soft);
-	PFKEY_EXT_COPY(msg, response.lft_hard);
-
-	if (response.key_encr)
-	{
-		PFKEY_EXT_COPY(msg, response.key_encr);
-	}
-
-	if (response.key_auth)
-	{
-		PFKEY_EXT_COPY(msg, response.key_auth);
-	}
-
-#ifdef HAVE_NATT
-	if (new_encap)
-	{
-		add_encap_ext(msg, new_src, new_dst);
-	}
-#endif /*HAVE_NATT*/
-
-	free(out);
-
-	if (pfkey_send(this, msg, &out, &len) != SUCCESS)
-	{
-		DBG1(DBG_KNL, "unable to update SAD entry with SPI %.8x", ntohl(spi));
-		return FAILED;
-	}
-	else if (out->sadb_msg_errno)
-	{
-		DBG1(DBG_KNL, "unable to update SAD entry with SPI %.8x: %s (%d)",
-					   ntohl(spi), strerror(out->sadb_msg_errno),
-					   out->sadb_msg_errno);
-		free(out);
-		return FAILED;
-	}
-	free(out);
-
-	return SUCCESS;
-}
-
-METHOD(kernel_ipsec_t, query_sa, status_t,
-	private_kernel_pfkey_ipsec_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)
-{
-	unsigned char request[PFKEY_BUFFER_SIZE];
-	struct sadb_msg *msg, *out;
-	struct sadb_sa *sa;
-	pfkey_msg_t response;
-	size_t len;
-
-	memset(&request, 0, sizeof(request));
-
-	DBG2(DBG_KNL, "querying SAD entry with SPI %.8x", ntohl(spi));
-
-	msg = (struct sadb_msg*)request;
-	msg->sadb_msg_version = PF_KEY_V2;
-	msg->sadb_msg_type = SADB_GET;
-	msg->sadb_msg_satype = proto2satype(protocol);
-	msg->sadb_msg_len = PFKEY_LEN(sizeof(struct sadb_msg));
-
-	sa = (struct sadb_sa*)PFKEY_EXT_ADD_NEXT(msg);
-	sa->sadb_sa_exttype = SADB_EXT_SA;
-	sa->sadb_sa_len = PFKEY_LEN(sizeof(struct sadb_sa));
-	sa->sadb_sa_spi = spi;
-	PFKEY_EXT_ADD(msg, sa);
-
-	/* the Linux Kernel doesn't care for the src address, but other systems do
-	 * (e.g. FreeBSD)
-	 */
-	add_addr_ext(msg, src, SADB_EXT_ADDRESS_SRC, 0, 0, FALSE);
-	add_addr_ext(msg, dst, SADB_EXT_ADDRESS_DST, 0, 0, FALSE);
-
-	if (pfkey_send(this, msg, &out, &len) != SUCCESS)
-	{
-		DBG1(DBG_KNL, "unable to query SAD entry with SPI %.8x", ntohl(spi));
-		return FAILED;
-	}
-	else if (out->sadb_msg_errno)
-	{
-		DBG1(DBG_KNL, "unable to query SAD entry with SPI %.8x: %s (%d)",
-					   ntohl(spi), strerror(out->sadb_msg_errno),
-					   out->sadb_msg_errno);
-		free(out);
-		return FAILED;
-	}
-	else if (parse_pfkey_message(out, &response) != SUCCESS)
-	{
-		DBG1(DBG_KNL, "unable to query SAD entry with SPI %.8x", ntohl(spi));
-		free(out);
-		return FAILED;
-	}
-	if (bytes)
-	{
-		*bytes = response.lft_current->sadb_lifetime_bytes;
-	}
-	if (packets)
-	{
-		/* at least on Linux and FreeBSD this contains the number of packets */
-		*packets = response.lft_current->sadb_lifetime_allocations;
-	}
-	if (time)
-	{
-#ifdef __APPLE__
-		/* OS X uses the "last" time of use in usetime */
-		*time = response.lft_current->sadb_lifetime_usetime;
-#else /* !__APPLE__ */
-		/* on Linux, sadb_lifetime_usetime is set to the "first" time of use,
-		 * which is actually correct according to PF_KEY. We have to query
-		 * policies for the last usetime. */
-		*time = 0;
-#endif /* !__APPLE__ */
-	}
-
-	free(out);
-	return SUCCESS;
-}
-
-METHOD(kernel_ipsec_t, del_sa, status_t,
-	private_kernel_pfkey_ipsec_t *this, host_t *src, host_t *dst,
-	u_int32_t spi, u_int8_t protocol, u_int16_t cpi, mark_t mark)
-{
-	unsigned char request[PFKEY_BUFFER_SIZE];
-	struct sadb_msg *msg, *out;
-	struct sadb_sa *sa;
-	size_t len;
-
-	/* if IPComp was used, we first delete the additional IPComp SA */
-	if (cpi)
-	{
-		del_sa(this, src, dst, htonl(ntohs(cpi)), IPPROTO_COMP, 0, mark);
-	}
-
-	memset(&request, 0, sizeof(request));
-
-	DBG2(DBG_KNL, "deleting SAD entry with SPI %.8x", ntohl(spi));
-
-	msg = (struct sadb_msg*)request;
-	msg->sadb_msg_version = PF_KEY_V2;
-	msg->sadb_msg_type = SADB_DELETE;
-	msg->sadb_msg_satype = proto2satype(protocol);
-	msg->sadb_msg_len = PFKEY_LEN(sizeof(struct sadb_msg));
-
-	sa = (struct sadb_sa*)PFKEY_EXT_ADD_NEXT(msg);
-	sa->sadb_sa_exttype = SADB_EXT_SA;
-	sa->sadb_sa_len = PFKEY_LEN(sizeof(struct sadb_sa));
-	sa->sadb_sa_spi = spi;
-	PFKEY_EXT_ADD(msg, sa);
-
-	/* the Linux Kernel doesn't care for the src address, but other systems do
-	 * (e.g. FreeBSD)
-	 */
-	add_addr_ext(msg, src, SADB_EXT_ADDRESS_SRC, 0, 0, FALSE);
-	add_addr_ext(msg, dst, SADB_EXT_ADDRESS_DST, 0, 0, FALSE);
-
-	if (pfkey_send(this, msg, &out, &len) != SUCCESS)
-	{
-		DBG1(DBG_KNL, "unable to delete SAD entry with SPI %.8x", ntohl(spi));
-		return FAILED;
-	}
-	else if (out->sadb_msg_errno)
-	{
-		DBG1(DBG_KNL, "unable to delete SAD entry with SPI %.8x: %s (%d)",
-					   ntohl(spi), strerror(out->sadb_msg_errno),
-					   out->sadb_msg_errno);
-		free(out);
-		return FAILED;
-	}
-
-	DBG2(DBG_KNL, "deleted SAD entry with SPI %.8x", ntohl(spi));
-	free(out);
-	return SUCCESS;
-}
-
-METHOD(kernel_ipsec_t, flush_sas, status_t,
-	private_kernel_pfkey_ipsec_t *this)
-{
-	unsigned char request[PFKEY_BUFFER_SIZE];
-	struct sadb_msg *msg, *out;
-	struct {
-		u_int8_t proto;
-		char *name;
-	} protos[] = {
-		{ SADB_SATYPE_AH, "AH" },
-		{ SADB_SATYPE_ESP, "ESP" },
-		{ SADB_X_SATYPE_IPCOMP, "IPComp" },
-	};
-	size_t len;
-	int i;
-
-	memset(&request, 0, sizeof(request));
-
-	msg = (struct sadb_msg*)request;
-	msg->sadb_msg_version = PF_KEY_V2;
-	msg->sadb_msg_type = SADB_FLUSH;
-	msg->sadb_msg_len = PFKEY_LEN(sizeof(struct sadb_msg));
-
-	for (i = 0; i < countof(protos); i++)
-	{
-		DBG2(DBG_KNL, "flushing all %s SAD entries", protos[i].name);
-
-		msg->sadb_msg_satype = protos[i].proto;
-		if (pfkey_send(this, msg, &out, &len) != SUCCESS)
-		{
-			DBG1(DBG_KNL, "unable to flush %s SAD entries", protos[i].name);
-			return FAILED;
-		}
-		else if (out->sadb_msg_errno)
-		{
-			DBG1(DBG_KNL, "unable to flush %s SAD entries: %s (%d)",
-				 protos[i].name, strerror(out->sadb_msg_errno),
-				 out->sadb_msg_errno);
-			free(out);
-			return FAILED;
-		}
-		free(out);
-	}
-	return SUCCESS;
-}
-
-/**
- * Add an explicit exclude route to a routing entry
- */
-static void add_exclude_route(private_kernel_pfkey_ipsec_t *this,
-							  route_entry_t *route, host_t *src, host_t *dst)
-{
-	enumerator_t *enumerator;
-	exclude_route_t *exclude;
-	host_t *gtw;
-
-	enumerator = this->excludes->create_enumerator(this->excludes);
-	while (enumerator->enumerate(enumerator, &exclude))
-	{
-		if (dst->ip_equals(dst, exclude->dst))
-		{
-			route->exclude = exclude;
-			exclude->refs++;
-		}
-	}
-	enumerator->destroy(enumerator);
-
-	if (!route->exclude)
-	{
-		DBG2(DBG_KNL, "installing new exclude route for %H src %H", dst, src);
-		gtw = hydra->kernel_interface->get_nexthop(hydra->kernel_interface,
-												   dst, -1, NULL);
-		if (gtw)
-		{
-			char *if_name = NULL;
-
-			if (hydra->kernel_interface->get_interface(
-									hydra->kernel_interface, src, &if_name) &&
-				hydra->kernel_interface->add_route(hydra->kernel_interface,
-									dst->get_address(dst),
-									dst->get_family(dst) == AF_INET ? 32 : 128,
-									gtw, src, if_name) == SUCCESS)
-			{
-				INIT(exclude,
-					.dst = dst->clone(dst),
-					.src = src->clone(src),
-					.gtw = gtw->clone(gtw),
-					.refs = 1,
-				);
-				route->exclude = exclude;
-				this->excludes->insert_last(this->excludes, exclude);
-			}
-			else
-			{
-				DBG1(DBG_KNL, "installing exclude route for %H failed", dst);
-			}
-			gtw->destroy(gtw);
-			free(if_name);
-		}
-		else
-		{
-			DBG1(DBG_KNL, "gateway lookup for for %H failed", dst);
-		}
-	}
-}
-
-/**
- * Remove an exclude route attached to a routing entry
- */
-static void remove_exclude_route(private_kernel_pfkey_ipsec_t *this,
-								 route_entry_t *route)
-{
-	if (route->exclude)
-	{
-		enumerator_t *enumerator;
-		exclude_route_t *exclude;
-		bool removed = FALSE;
-		host_t *dst;
-
-		enumerator = this->excludes->create_enumerator(this->excludes);
-		while (enumerator->enumerate(enumerator, &exclude))
-		{
-			if (route->exclude == exclude)
-			{
-				if (--exclude->refs == 0)
-				{
-					this->excludes->remove_at(this->excludes, enumerator);
-					removed = TRUE;
-					break;
-				}
-			}
-		}
-		enumerator->destroy(enumerator);
-
-		if (removed)
-		{
-			char *if_name = NULL;
-
-			dst = route->exclude->dst;
-			DBG2(DBG_KNL, "uninstalling exclude route for %H src %H",
-				 dst, route->exclude->src);
-			if (hydra->kernel_interface->get_interface(
-									hydra->kernel_interface,
-									route->exclude->src, &if_name) &&
-				hydra->kernel_interface->del_route(hydra->kernel_interface,
-									dst->get_address(dst),
-									dst->get_family(dst) == AF_INET ? 32 : 128,
-									route->exclude->gtw, route->exclude->src,
-									if_name) != SUCCESS)
-			{
-				DBG1(DBG_KNL, "uninstalling exclude route for %H failed", dst);
-			}
-			exclude_route_destroy(route->exclude);
-			free(if_name);
-		}
-		route->exclude = NULL;
-	}
-}
-
-/**
- * Try to install a route to the given inbound policy
- */
-static bool install_route(private_kernel_pfkey_ipsec_t *this,
-						  policy_entry_t *policy, policy_sa_in_t *in)
-{
-	route_entry_t *route, *old;
-	host_t *host, *src, *dst;
-	bool is_virtual;
-
-	if (hydra->kernel_interface->get_address_by_ts(hydra->kernel_interface,
-									in->dst_ts, &host, &is_virtual) != SUCCESS)
-	{
-		return FALSE;
-	}
-
-	/* switch src/dst, as we handle an IN policy */
-	src = in->generic.sa->dst;
-	dst = in->generic.sa->src;
-
-	INIT(route,
-		.prefixlen = policy->src.mask,
-		.src_ip = host,
-		.dst_net = chunk_clone(policy->src.net->get_address(policy->src.net)),
-	);
-
-	if (!dst->is_anyaddr(dst))
-	{
-		route->gateway = hydra->kernel_interface->get_nexthop(
-									hydra->kernel_interface, dst, -1, src);
-
-		/* if the IP is virtual, we install the route over the interface it has
-		 * been installed on. Otherwise we use the interface we use for IKE, as
-		 * this is required for example on Linux. */
-		if (is_virtual)
-		{
-			src = route->src_ip;
-		}
-	}
-	else
-	{	/* for shunt policies */
-		route->gateway = hydra->kernel_interface->get_nexthop(
-									hydra->kernel_interface, policy->src.net,
-									policy->src.mask, route->src_ip);
-
-		/* we don't have a source address, use the address we found */
-		src = route->src_ip;
-	}
-
-	/* get interface for route, using source address */
-	if (!hydra->kernel_interface->get_interface(hydra->kernel_interface,
-												src, &route->if_name))
-	{
-		route_entry_destroy(route);
-		return FALSE;
-	}
-
-	if (policy->route)
-	{
-		old = policy->route;
-
-		if (route_entry_equals(old, route))
-		{	/* such a route already exists */
-			route_entry_destroy(route);
-			return TRUE;
-		}
-		/* uninstall previously installed route */
-		if (hydra->kernel_interface->del_route(hydra->kernel_interface,
-									old->dst_net, old->prefixlen, old->gateway,
-									old->src_ip, old->if_name) != SUCCESS)
-		{
-			DBG1(DBG_KNL, "error uninstalling route installed with policy "
-				 "%R === %R %N", in->src_ts, in->dst_ts,
-				policy_dir_names, policy->direction);
-		}
-		route_entry_destroy(old);
-		policy->route = NULL;
-	}
-
-	/* if remote traffic selector covers the IKE peer, add an exclude route */
-	if (hydra->kernel_interface->get_features(
-					hydra->kernel_interface) & KERNEL_REQUIRE_EXCLUDE_ROUTE)
-	{
-		if (in->src_ts->is_host(in->src_ts, dst))
-		{
-			DBG1(DBG_KNL, "can't install route for %R === %R %N, conflicts "
-				 "with IKE traffic", in->src_ts, in->dst_ts, policy_dir_names,
-				 policy->direction);
-			route_entry_destroy(route);
-			return FALSE;
-		}
-		if (in->src_ts->includes(in->src_ts, dst))
-		{
-			add_exclude_route(this, route, in->generic.sa->dst, dst);
-		}
-	}
-
-	DBG2(DBG_KNL, "installing route: %R via %H src %H dev %s",
-		 in->src_ts, route->gateway, route->src_ip, route->if_name);
-
-	switch (hydra->kernel_interface->add_route(hydra->kernel_interface,
-							route->dst_net, route->prefixlen, route->gateway,
-							route->src_ip, route->if_name))
-	{
-		case ALREADY_DONE:
-			/* route exists, do not uninstall */
-			remove_exclude_route(this, route);
-			route_entry_destroy(route);
-			return TRUE;
-		case SUCCESS:
-			/* cache the installed route */
-			policy->route = route;
-			return TRUE;
-		default:
-			DBG1(DBG_KNL, "installing route failed: %R via %H src %H dev %s",
-				 in->src_ts, route->gateway, route->src_ip, route->if_name);
-			remove_exclude_route(this, route);
-			route_entry_destroy(route);
-			return FALSE;
-	}
-}
-
-/**
- * Add or update a policy in the kernel.
- *
- * Note: The mutex has to be locked when entering this function.
- */
-static status_t add_policy_internal(private_kernel_pfkey_ipsec_t *this,
-	policy_entry_t *policy, policy_sa_t *mapping, bool update)
-{
-	unsigned char request[PFKEY_BUFFER_SIZE];
-	struct sadb_msg *msg, *out;
-	struct sadb_x_policy *pol;
-	struct sadb_x_ipsecrequest *req;
-	ipsec_sa_t *ipsec = mapping->sa;
-	pfkey_msg_t response;
-	size_t len;
-	ipsec_mode_t proto_mode;
-	status_t status;
-
-	memset(&request, 0, sizeof(request));
-
-	msg = (struct sadb_msg*)request;
-	msg->sadb_msg_version = PF_KEY_V2;
-	msg->sadb_msg_type = update ? SADB_X_SPDUPDATE : SADB_X_SPDADD;
-	msg->sadb_msg_satype = 0;
-	msg->sadb_msg_len = PFKEY_LEN(sizeof(struct sadb_msg));
-
-	pol = (struct sadb_x_policy*)PFKEY_EXT_ADD_NEXT(msg);
-	pol->sadb_x_policy_exttype = SADB_X_EXT_POLICY;
-	pol->sadb_x_policy_len = PFKEY_LEN(sizeof(struct sadb_x_policy));
-	pol->sadb_x_policy_id = 0;
-	pol->sadb_x_policy_dir = dir2kernel(policy->direction);
-	pol->sadb_x_policy_type = type2kernel(mapping->type);
-#ifdef HAVE_STRUCT_SADB_X_POLICY_SADB_X_POLICY_PRIORITY
-	pol->sadb_x_policy_priority = mapping->priority;
-#endif
-
-	/* one or more sadb_x_ipsecrequest extensions are added to the
-	 * sadb_x_policy extension */
-	proto_mode = ipsec->cfg.mode;
-
-	req = (struct sadb_x_ipsecrequest*)(pol + 1);
-
-	if (ipsec->cfg.ipcomp.transform != IPCOMP_NONE)
-	{
-		req->sadb_x_ipsecrequest_proto = IPPROTO_COMP;
-
-		/* !!! the length here MUST be in octets instead of 64 bit words */
-		req->sadb_x_ipsecrequest_len = sizeof(struct sadb_x_ipsecrequest);
-		req->sadb_x_ipsecrequest_mode = mode2kernel(ipsec->cfg.mode);
-		req->sadb_x_ipsecrequest_reqid = ipsec->cfg.reqid;
-		req->sadb_x_ipsecrequest_level = (policy->direction == POLICY_OUT) ?
-										  IPSEC_LEVEL_UNIQUE : IPSEC_LEVEL_USE;
-		if (ipsec->cfg.mode == MODE_TUNNEL)
-		{
-			len = hostcpy(req + 1, ipsec->src, FALSE);
-			req->sadb_x_ipsecrequest_len += len;
-			len = hostcpy((char*)(req + 1) + len, ipsec->dst, FALSE);
-			req->sadb_x_ipsecrequest_len += len;
-			/* use transport mode for other SAs */
-			proto_mode = MODE_TRANSPORT;
-		}
-
-		pol->sadb_x_policy_len += PFKEY_LEN(req->sadb_x_ipsecrequest_len);
-		req = (struct sadb_x_ipsecrequest*)((char*)(req) +
-											req->sadb_x_ipsecrequest_len);
-	}
-
-	req->sadb_x_ipsecrequest_proto = ipsec->cfg.esp.use ? IPPROTO_ESP
-														: IPPROTO_AH;
-	/* !!! the length here MUST be in octets instead of 64 bit words */
-	req->sadb_x_ipsecrequest_len = sizeof(struct sadb_x_ipsecrequest);
-	req->sadb_x_ipsecrequest_mode = mode2kernel(proto_mode);
-	req->sadb_x_ipsecrequest_reqid = ipsec->cfg.reqid;
-	req->sadb_x_ipsecrequest_level = IPSEC_LEVEL_UNIQUE;
-	if (proto_mode == MODE_TUNNEL)
-	{
-		len = hostcpy(req + 1, ipsec->src, FALSE);
-		req->sadb_x_ipsecrequest_len += len;
-		len = hostcpy((char*)(req + 1) + len, ipsec->dst, FALSE);
-		req->sadb_x_ipsecrequest_len += len;
-	}
-
-	pol->sadb_x_policy_len += PFKEY_LEN(req->sadb_x_ipsecrequest_len);
-	PFKEY_EXT_ADD(msg, pol);
-
-	add_addr_ext(msg, policy->src.net, SADB_EXT_ADDRESS_SRC, policy->src.proto,
-				 policy->src.mask, TRUE);
-	add_addr_ext(msg, policy->dst.net, SADB_EXT_ADDRESS_DST, policy->dst.proto,
-				 policy->dst.mask, TRUE);
-
-#ifdef __FreeBSD__
-	{	/* on FreeBSD a lifetime has to be defined to be able to later query
-		 * the current use time. */
-		struct sadb_lifetime *lft;
-		lft = (struct sadb_lifetime*)PFKEY_EXT_ADD_NEXT(msg);
-		lft->sadb_lifetime_exttype = SADB_EXT_LIFETIME_HARD;
-		lft->sadb_lifetime_len = PFKEY_LEN(sizeof(struct sadb_lifetime));
-		lft->sadb_lifetime_addtime = LONG_MAX;
-		PFKEY_EXT_ADD(msg, lft);
-	}
-#endif
-
-	this->mutex->unlock(this->mutex);
-
-	status = pfkey_send(this, msg, &out, &len);
-	if (status == SUCCESS && !update && out->sadb_msg_errno == EEXIST)
-	{
-		DBG1(DBG_KNL, "policy already exists, try to update it");
-		free(out);
-		msg->sadb_msg_type = SADB_X_SPDUPDATE;
-		status = pfkey_send(this, msg, &out, &len);
-	}
-	if (status != SUCCESS)
-	{
-		return FAILED;
-	}
-	else if (out->sadb_msg_errno)
-	{
-		DBG1(DBG_KNL, "unable to %s policy: %s (%d)",
-					   update ? "update" : "add", strerror(out->sadb_msg_errno),
-					   out->sadb_msg_errno);
-		free(out);
-		return FAILED;
-	}
-	else if (parse_pfkey_message(out, &response) != SUCCESS)
-	{
-		DBG1(DBG_KNL, "unable to %s policy: parsing response from kernel "
-					  "failed", update ? "update" : "add");
-		free(out);
-		return FAILED;
-	}
-
-	/* we try to find the policy again and update the kernel index */
-	this->mutex->lock(this->mutex);
-	if (this->policies->find_first(this->policies, NULL,
-								  (void**)&policy) != SUCCESS)
-	{
-		DBG2(DBG_KNL, "unable to update index, the policy is already gone, "
-					  "ignoring");
-		this->mutex->unlock(this->mutex);
-		free(out);
-		return SUCCESS;
-	}
-	policy->index = response.x_policy->sadb_x_policy_id;
-	free(out);
-
-	/* install a route, if:
-	 * - this is an inbound policy (to just get one for each child)
-	 * - we are in tunnel mode or install a bypass policy
-	 * - routing is not disabled via strongswan.conf
-	 */
-	if (policy->direction == POLICY_IN && this->install_routes &&
-		(mapping->type != POLICY_IPSEC || ipsec->cfg.mode != MODE_TRANSPORT))
-	{
-		install_route(this, policy, (policy_sa_in_t*)mapping);
-	}
-	this->mutex->unlock(this->mutex);
-	return SUCCESS;
-}
-
-METHOD(kernel_ipsec_t, add_policy, status_t,
-	private_kernel_pfkey_ipsec_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)
-{
-	policy_entry_t *policy, *found = NULL;
-	policy_sa_t *assigned_sa, *current_sa;
-	enumerator_t *enumerator;
-	bool update = TRUE;
-
-	if (dir2kernel(direction) == IPSEC_DIR_INVALID)
-	{	/* FWD policies are not supported on all platforms */
-		return SUCCESS;
-	}
-
-	/* create a policy */
-	policy = create_policy_entry(src_ts, dst_ts, direction);
-
-	/* find a matching policy */
-	this->mutex->lock(this->mutex);
-	if (this->policies->find_first(this->policies,
-								  (linked_list_match_t)policy_entry_equals,
-								  (void**)&found, policy) == SUCCESS)
-	{	/* use existing policy */
-		DBG2(DBG_KNL, "policy %R === %R %N already exists, increasing "
-					  "refcount", src_ts, dst_ts, policy_dir_names, direction);
-		policy_entry_destroy(policy, this);
-		policy = found;
-	}
-	else
-	{	/* use the new one, if we have no such policy */
-		this->policies->insert_first(this->policies, policy);
-		policy->used_by = linked_list_create();
-	}
-
-	/* cache the assigned IPsec SA */
-	assigned_sa = policy_sa_create(this, direction, type, src, dst, src_ts,
-								   dst_ts, sa);
-	assigned_sa->priority = get_priority(policy, priority);
-
-	/* insert the SA according to its priority */
-	enumerator = policy->used_by->create_enumerator(policy->used_by);
-	while (enumerator->enumerate(enumerator, (void**)&current_sa))
-	{
-		if (current_sa->priority >= assigned_sa->priority)
-		{
-			break;
-		}
-		update = FALSE;
-	}
-	policy->used_by->insert_before(policy->used_by, enumerator, assigned_sa);
-	enumerator->destroy(enumerator);
-
-	if (!update)
-	{	/* we don't update the policy if the priority is lower than that of the
-		 * currently installed one */
-		this->mutex->unlock(this->mutex);
-		return SUCCESS;
-	}
-
-	DBG2(DBG_KNL, "%s policy %R === %R %N",
-				   found ? "updating" : "adding", src_ts, dst_ts,
-				   policy_dir_names, direction);
-
-	if (add_policy_internal(this, policy, assigned_sa, found) != SUCCESS)
-	{
-		DBG1(DBG_KNL, "unable to %s policy %R === %R %N",
-					   found ? "update" : "add", src_ts, dst_ts,
-					   policy_dir_names, direction);
-		return FAILED;
-	}
-	return SUCCESS;
-}
-
-METHOD(kernel_ipsec_t, query_policy, status_t,
-	private_kernel_pfkey_ipsec_t *this, traffic_selector_t *src_ts,
-	traffic_selector_t *dst_ts, policy_dir_t direction, mark_t mark,
-	time_t *use_time)
-{
-	unsigned char request[PFKEY_BUFFER_SIZE];
-	struct sadb_msg *msg, *out;
-	struct sadb_x_policy *pol;
-	policy_entry_t *policy, *found = NULL;
-	pfkey_msg_t response;
-	size_t len;
-
-	if (dir2kernel(direction) == IPSEC_DIR_INVALID)
-	{	/* FWD policies are not supported on all platforms */
-		return NOT_FOUND;
-	}
-
-	DBG2(DBG_KNL, "querying policy %R === %R %N", src_ts, dst_ts,
-				   policy_dir_names, direction);
-
-	/* create a policy */
-	policy = create_policy_entry(src_ts, dst_ts, direction);
-
-	/* find a matching policy */
-	this->mutex->lock(this->mutex);
-	if (this->policies->find_first(this->policies,
-								  (linked_list_match_t)policy_entry_equals,
-								  (void**)&found, policy) != SUCCESS)
-	{
-		DBG1(DBG_KNL, "querying policy %R === %R %N failed, not found", src_ts,
-					   dst_ts, policy_dir_names, direction);
-		policy_entry_destroy(policy, this);
-		this->mutex->unlock(this->mutex);
-		return NOT_FOUND;
-	}
-	policy_entry_destroy(policy, this);
-	policy = found;
-
-	memset(&request, 0, sizeof(request));
-
-	msg = (struct sadb_msg*)request;
-	msg->sadb_msg_version = PF_KEY_V2;
-	msg->sadb_msg_type = SADB_X_SPDGET;
-	msg->sadb_msg_satype = 0;
-	msg->sadb_msg_len = PFKEY_LEN(sizeof(struct sadb_msg));
-
-	pol = (struct sadb_x_policy*)PFKEY_EXT_ADD_NEXT(msg);
-	pol->sadb_x_policy_exttype = SADB_X_EXT_POLICY;
-	pol->sadb_x_policy_id = policy->index;
-	pol->sadb_x_policy_len = PFKEY_LEN(sizeof(struct sadb_x_policy));
-	pol->sadb_x_policy_dir = dir2kernel(direction);
-	pol->sadb_x_policy_type = IPSEC_POLICY_IPSEC;
-	PFKEY_EXT_ADD(msg, pol);
-
-	add_addr_ext(msg, policy->src.net, SADB_EXT_ADDRESS_SRC, policy->src.proto,
-				 policy->src.mask, TRUE);
-	add_addr_ext(msg, policy->dst.net, SADB_EXT_ADDRESS_DST, policy->dst.proto,
-				 policy->dst.mask, TRUE);
-
-	this->mutex->unlock(this->mutex);
-
-	if (pfkey_send(this, msg, &out, &len) != SUCCESS)
-	{
-		DBG1(DBG_KNL, "unable to query policy %R === %R %N", src_ts, dst_ts,
-					   policy_dir_names, direction);
-		return FAILED;
-	}
-	else if (out->sadb_msg_errno)
-	{
-		DBG1(DBG_KNL, "unable to query policy %R === %R %N: %s (%d)", src_ts,
-					   dst_ts, policy_dir_names, direction,
-					   strerror(out->sadb_msg_errno), out->sadb_msg_errno);
-		free(out);
-		return FAILED;
-	}
-	else if (parse_pfkey_message(out, &response) != SUCCESS)
-	{
-		DBG1(DBG_KNL, "unable to query policy %R === %R %N: parsing response "
-					  "from kernel failed", src_ts, dst_ts, policy_dir_names,
-					   direction);
-		free(out);
-		return FAILED;
-	}
-	else if (response.lft_current == NULL)
-	{
-		DBG2(DBG_KNL, "unable to query policy %R === %R %N: kernel reports no "
-					  "use time", src_ts, dst_ts, policy_dir_names, direction);
-		free(out);
-		return FAILED;
-	}
-
-	/* we need the monotonic time, but the kernel returns system time. */
-	if (response.lft_current->sadb_lifetime_usetime)
-	{
-		*use_time = time_monotonic(NULL) -
-					(time(NULL) - response.lft_current->sadb_lifetime_usetime);
-	}
-	else
-	{
-		*use_time = 0;
-	}
-	free(out);
-	return SUCCESS;
-}
-
-METHOD(kernel_ipsec_t, del_policy, status_t,
-	private_kernel_pfkey_ipsec_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 prio)
-{
-	unsigned char request[PFKEY_BUFFER_SIZE];
-	struct sadb_msg *msg, *out;
-	struct sadb_x_policy *pol;
-	policy_entry_t *policy, *found = NULL;
-	policy_sa_t *mapping, *to_remove = NULL;
-	enumerator_t *enumerator;
-	bool first = TRUE, is_installed = TRUE;
-	u_int32_t priority;
-	size_t len;
-	ipsec_sa_t assigned_sa = {
-		.src = src,
-		.dst = dst,
-		.cfg = *sa,
-	};
-
-	if (dir2kernel(direction) == IPSEC_DIR_INVALID)
-	{	/* FWD policies are not supported on all platforms */
-		return SUCCESS;
-	}
-
-	DBG2(DBG_KNL, "deleting policy %R === %R %N", src_ts, dst_ts,
-				   policy_dir_names, direction);
-
-	/* create a policy */
-	policy = create_policy_entry(src_ts, dst_ts, direction);
-
-	/* find a matching policy */
-	this->mutex->lock(this->mutex);
-	if (this->policies->find_first(this->policies,
-								  (linked_list_match_t)policy_entry_equals,
-								  (void**)&found, policy) != SUCCESS)
-	{
-		DBG1(DBG_KNL, "deleting policy %R === %R %N failed, not found", src_ts,
-					   dst_ts, policy_dir_names, direction);
-		policy_entry_destroy(policy, this);
-		this->mutex->unlock(this->mutex);
-		return NOT_FOUND;
-	}
-	policy_entry_destroy(policy, this);
-	policy = found;
-
-	/* remove mapping to SA by reqid and priority, if multiple match, which
-	 * could happen when rekeying due to an address change, remove the oldest */
-	priority = get_priority(policy, prio);
-	enumerator = policy->used_by->create_enumerator(policy->used_by);
-	while (enumerator->enumerate(enumerator, (void**)&mapping))
-	{
-		if (priority == mapping->priority &&
-			ipsec_sa_equals(mapping->sa, &assigned_sa))
-		{
-			to_remove = mapping;
-			is_installed = first;
-		}
-		else if (priority < mapping->priority)
-		{
-			break;
-		}
-		first = FALSE;
-	}
-	enumerator->destroy(enumerator);
-	if (!to_remove)
-	{	/* sanity check */
-		this->mutex->unlock(this->mutex);
-		return SUCCESS;
-	}
-	policy->used_by->remove(policy->used_by, to_remove, NULL);
-	mapping = to_remove;
-
-	if (policy->used_by->get_count(policy->used_by) > 0)
-	{	/* policy is used by more SAs, keep in kernel */
-		DBG2(DBG_KNL, "policy still used by another CHILD_SA, not removed");
-		policy_sa_destroy(mapping, &direction, this);
-
-		if (!is_installed)
-		{	/* no need to update as the policy was not installed for this SA */
-			this->mutex->unlock(this->mutex);
-			return SUCCESS;
-		}
-
-		DBG2(DBG_KNL, "updating policy %R === %R %N", src_ts, dst_ts,
-					   policy_dir_names, direction);
-		policy->used_by->get_first(policy->used_by, (void**)&mapping);
-		if (add_policy_internal(this, policy, mapping, TRUE) != SUCCESS)
-		{
-			DBG1(DBG_KNL, "unable to update policy %R === %R %N",
-						   src_ts, dst_ts, policy_dir_names, direction);
-			return FAILED;
-		}
-		return SUCCESS;
-	}
-
-	memset(&request, 0, sizeof(request));
-
-	msg = (struct sadb_msg*)request;
-	msg->sadb_msg_version = PF_KEY_V2;
-	msg->sadb_msg_type = SADB_X_SPDDELETE;
-	msg->sadb_msg_satype = 0;
-	msg->sadb_msg_len = PFKEY_LEN(sizeof(struct sadb_msg));
-
-	pol = (struct sadb_x_policy*)PFKEY_EXT_ADD_NEXT(msg);
-	pol->sadb_x_policy_exttype = SADB_X_EXT_POLICY;
-	pol->sadb_x_policy_len = PFKEY_LEN(sizeof(struct sadb_x_policy));
-	pol->sadb_x_policy_dir = dir2kernel(direction);
-	pol->sadb_x_policy_type = type2kernel(mapping->type);
-	PFKEY_EXT_ADD(msg, pol);
-
-	add_addr_ext(msg, policy->src.net, SADB_EXT_ADDRESS_SRC, policy->src.proto,
-				 policy->src.mask, TRUE);
-	add_addr_ext(msg, policy->dst.net, SADB_EXT_ADDRESS_DST, policy->dst.proto,
-				 policy->dst.mask, TRUE);
-
-	if (policy->route)
-	{
-		route_entry_t *route = policy->route;
-		if (hydra->kernel_interface->del_route(hydra->kernel_interface,
-				route->dst_net, route->prefixlen, route->gateway,
-				route->src_ip, route->if_name) != SUCCESS)
-		{
-			DBG1(DBG_KNL, "error uninstalling route installed with "
-						  "policy %R === %R %N", src_ts, dst_ts,
-						   policy_dir_names, direction);
-		}
-		remove_exclude_route(this, route);
-	}
-
-	this->policies->remove(this->policies, found, NULL);
-	policy_sa_destroy(mapping, &direction, this);
-	policy_entry_destroy(policy, this);
-	this->mutex->unlock(this->mutex);
-
-	if (pfkey_send(this, msg, &out, &len) != SUCCESS)
-	{
-		DBG1(DBG_KNL, "unable to delete policy %R === %R %N", src_ts, dst_ts,
-					   policy_dir_names, direction);
-		return FAILED;
-	}
-	else if (out->sadb_msg_errno)
-	{
-		DBG1(DBG_KNL, "unable to delete policy %R === %R %N: %s (%d)", src_ts,
-					   dst_ts, policy_dir_names, direction,
-					   strerror(out->sadb_msg_errno), out->sadb_msg_errno);
-		free(out);
-		return FAILED;
-	}
-	free(out);
-	return SUCCESS;
-}
-
-METHOD(kernel_ipsec_t, flush_policies, status_t,
-	private_kernel_pfkey_ipsec_t *this)
-{
-	unsigned char request[PFKEY_BUFFER_SIZE];
-	struct sadb_msg *msg, *out;
-	size_t len;
-
-	memset(&request, 0, sizeof(request));
-
-	DBG2(DBG_KNL, "flushing all policies from SPD");
-
-	msg = (struct sadb_msg*)request;
-	msg->sadb_msg_version = PF_KEY_V2;
-	msg->sadb_msg_type = SADB_X_SPDFLUSH;
-	msg->sadb_msg_satype = SADB_SATYPE_UNSPEC;
-	msg->sadb_msg_len = PFKEY_LEN(sizeof(struct sadb_msg));
-
-	if (pfkey_send(this, msg, &out, &len) != SUCCESS)
-	{
-		DBG1(DBG_KNL, "unable to flush SPD entries");
-		return FAILED;
-	}
-	else if (out->sadb_msg_errno)
-	{
-		DBG1(DBG_KNL, "unable to flush SPD entries: %s (%d)",
-					   strerror(out->sadb_msg_errno), out->sadb_msg_errno);
-		free(out);
-		return FAILED;
-	}
-	free(out);
-	return SUCCESS;
-}
-
-/**
- * Register a socket for ACQUIRE/EXPIRE messages
- */
-static status_t register_pfkey_socket(private_kernel_pfkey_ipsec_t *this,
-									  u_int8_t satype)
-{
-	unsigned char request[PFKEY_BUFFER_SIZE];
-	struct sadb_msg *msg, *out;
-	size_t len;
-
-	memset(&request, 0, sizeof(request));
-
-	msg = (struct sadb_msg*)request;
-	msg->sadb_msg_version = PF_KEY_V2;
-	msg->sadb_msg_type = SADB_REGISTER;
-	msg->sadb_msg_satype = satype;
-	msg->sadb_msg_len = PFKEY_LEN(sizeof(struct sadb_msg));
-
-	if (pfkey_send_socket(this, this->socket_events, msg, &out, &len) != SUCCESS)
-	{
-		DBG1(DBG_KNL, "unable to register PF_KEY socket");
-		return FAILED;
-	}
-	else if (out->sadb_msg_errno)
-	{
-		DBG1(DBG_KNL, "unable to register PF_KEY socket: %s (%d)",
-					   strerror(out->sadb_msg_errno), out->sadb_msg_errno);
-		free(out);
-		return FAILED;
-	}
-	free(out);
-	return SUCCESS;
-}
-
-METHOD(kernel_ipsec_t, bypass_socket, bool,
-	private_kernel_pfkey_ipsec_t *this, int fd, int family)
-{
-	struct sadb_x_policy policy;
-	u_int sol, ipsec_policy;
-
-	switch (family)
-	{
-		case AF_INET:
-		{
-			sol = SOL_IP;
-			ipsec_policy = IP_IPSEC_POLICY;
-			break;
-		}
-		case AF_INET6:
-		{
-			sol = SOL_IPV6;
-			ipsec_policy = IPV6_IPSEC_POLICY;
-			break;
-		}
-		default:
-			return FALSE;
-	}
-
-	memset(&policy, 0, sizeof(policy));
-	policy.sadb_x_policy_len = sizeof(policy) / sizeof(u_int64_t);
-	policy.sadb_x_policy_exttype = SADB_X_EXT_POLICY;
-	policy.sadb_x_policy_type = IPSEC_POLICY_BYPASS;
-
-	policy.sadb_x_policy_dir = IPSEC_DIR_OUTBOUND;
-	if (setsockopt(fd, sol, ipsec_policy, &policy, sizeof(policy)) < 0)
-	{
-		DBG1(DBG_KNL, "unable to set IPSEC_POLICY on socket: %s",
-					   strerror(errno));
-		return FALSE;
-	}
-	policy.sadb_x_policy_dir = IPSEC_DIR_INBOUND;
-	if (setsockopt(fd, sol, ipsec_policy, &policy, sizeof(policy)) < 0)
-	{
-		DBG1(DBG_KNL, "unable to set IPSEC_POLICY on socket: %s",
-					   strerror(errno));
-		return FALSE;
-	}
-	return TRUE;
-}
-
-METHOD(kernel_ipsec_t, enable_udp_decap, bool,
-	private_kernel_pfkey_ipsec_t *this, int fd, int family, u_int16_t port)
-{
-#ifndef __APPLE__
-	int type = UDP_ENCAP_ESPINUDP;
-
-	if (setsockopt(fd, SOL_UDP, UDP_ENCAP, &type, sizeof(type)) < 0)
-	{
-		DBG1(DBG_KNL, "unable to set UDP_ENCAP: %s", strerror(errno));
-		return FALSE;
-	}
-#else /* __APPLE__ */
-	int intport = port;
-
-	if (sysctlbyname("net.inet.ipsec.esp_port", NULL, NULL, &intport,
-					 sizeof(intport)) != 0)
-	{
-		DBG1(DBG_KNL, "could not set net.inet.ipsec.esp_port to %d: %s",
-			 port, strerror(errno));
-		return FALSE;
-	}
-#endif /* __APPLE__ */
-
-	return TRUE;
-}
-
-METHOD(kernel_ipsec_t, destroy, void,
-	private_kernel_pfkey_ipsec_t *this)
-{
-	if (this->socket > 0)
-	{
-		close(this->socket);
-	}
-	if (this->socket_events > 0)
-	{
-		lib->watcher->remove(lib->watcher, this->socket_events);
-		close(this->socket_events);
-	}
-	this->policies->invoke_function(this->policies,
-								   (linked_list_invoke_t)policy_entry_destroy,
-									this);
-	this->policies->destroy(this->policies);
-	this->excludes->destroy(this->excludes);
-	this->sas->destroy(this->sas);
-	this->mutex->destroy(this->mutex);
-	this->mutex_pfkey->destroy(this->mutex_pfkey);
-	free(this);
-}
-
-/*
- * Described in header.
- */
-kernel_pfkey_ipsec_t *kernel_pfkey_ipsec_create()
-{
-	private_kernel_pfkey_ipsec_t *this;
-	bool register_for_events = TRUE;
-	int rcv_buffer;
-
-	INIT(this,
-		.public = {
-			.interface = {
-				.get_spi = _get_spi,
-				.get_cpi = _get_cpi,
-				.add_sa  = _add_sa,
-				.update_sa = _update_sa,
-				.query_sa = _query_sa,
-				.del_sa = _del_sa,
-				.flush_sas = _flush_sas,
-				.add_policy = _add_policy,
-				.query_policy = _query_policy,
-				.del_policy = _del_policy,
-				.flush_policies = _flush_policies,
-				.bypass_socket = _bypass_socket,
-				.enable_udp_decap = _enable_udp_decap,
-				.destroy = _destroy,
-			},
-		},
-		.policies = linked_list_create(),
-		.excludes = linked_list_create(),
-		.sas = hashtable_create((hashtable_hash_t)ipsec_sa_hash,
-								(hashtable_equals_t)ipsec_sa_equals, 32),
-		.mutex = mutex_create(MUTEX_TYPE_DEFAULT),
-		.mutex_pfkey = mutex_create(MUTEX_TYPE_DEFAULT),
-		.install_routes = lib->settings->get_bool(lib->settings,
-												  "%s.install_routes", TRUE,
-												  lib->ns),
-	);
-
-	if (streq(lib->ns, "starter"))
-	{	/* starter has no threads, so we do not register for kernel events */
-		register_for_events = FALSE;
-	}
-
-	/* create a PF_KEY socket to communicate with the kernel */
-	this->socket = socket(PF_KEY, SOCK_RAW, PF_KEY_V2);
-	if (this->socket <= 0)
-	{
-		DBG1(DBG_KNL, "unable to create PF_KEY socket");
-		destroy(this);
-		return NULL;
-	}
-
-	if (register_for_events)
-	{
-		/* create a PF_KEY socket for ACQUIRE & EXPIRE */
-		this->socket_events = socket(PF_KEY, SOCK_RAW, PF_KEY_V2);
-		if (this->socket_events <= 0)
-		{
-			DBG1(DBG_KNL, "unable to create PF_KEY event socket");
-			destroy(this);
-			return NULL;
-		}
-
-		rcv_buffer = lib->settings->get_int(lib->settings,
-					"%s.plugins.kernel-pfkey.events_buffer_size", 0, lib->ns);
-		if (rcv_buffer > 0)
-		{
-			if (setsockopt(this->socket_events, SOL_SOCKET, SO_RCVBUF,
-						   &rcv_buffer, sizeof(rcv_buffer)) == -1)
-			{
-				DBG1(DBG_KNL, "unable to set receive buffer size on PF_KEY "
-					 "event socket: %s", strerror(errno));
-			}
-		}
-
-		/* register the event socket */
-		if (register_pfkey_socket(this, SADB_SATYPE_ESP) != SUCCESS ||
-			register_pfkey_socket(this, SADB_SATYPE_AH) != SUCCESS)
-		{
-			DBG1(DBG_KNL, "unable to register PF_KEY event socket");
-			destroy(this);
-			return NULL;
-		}
-
-		lib->watcher->add(lib->watcher, this->socket_events, WATCHER_READ,
-						  (watcher_cb_t)receive_events, this);
-	}
-
-	return &this->public;
-}
diff --git a/src/libhydra/plugins/kernel_pfkey/kernel_pfkey_ipsec.h b/src/libhydra/plugins/kernel_pfkey/kernel_pfkey_ipsec.h
deleted file mode 100644
index 649f93733..000000000
--- a/src/libhydra/plugins/kernel_pfkey/kernel_pfkey_ipsec.h
+++ /dev/null
@@ -1,46 +0,0 @@
-/*
- * Copyright (C) 2008 Tobias Brunner
- * 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_pfkey_ipsec_i kernel_pfkey_ipsec
- * @{ @ingroup kernel_pfkey
- */
-
-#ifndef KERNEL_PFKEY_IPSEC_H_
-#define KERNEL_PFKEY_IPSEC_H_
-
-#include <kernel/kernel_ipsec.h>
-
-typedef struct kernel_pfkey_ipsec_t kernel_pfkey_ipsec_t;
-
-/**
- * Implementation of the kernel ipsec interface using PF_KEY.
- */
-struct kernel_pfkey_ipsec_t {
-
-	/**
-	 * Implements kernel_ipsec_t interface
-	 */
-	kernel_ipsec_t interface;
-};
-
-/**
- * Create a PF_KEY kernel ipsec interface instance.
- *
- * @return			kernel_pfkey_ipsec_t instance
- */
-kernel_pfkey_ipsec_t *kernel_pfkey_ipsec_create();
-
-#endif /** KERNEL_PFKEY_IPSEC_H_ @}*/
diff --git a/src/libhydra/plugins/kernel_pfkey/kernel_pfkey_plugin.c b/src/libhydra/plugins/kernel_pfkey/kernel_pfkey_plugin.c
deleted file mode 100644
index 61d576547..000000000
--- a/src/libhydra/plugins/kernel_pfkey/kernel_pfkey_plugin.c
+++ /dev/null
@@ -1,82 +0,0 @@
-/*
- * Copyright (C) 2008 Tobias Brunner
- * 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.
- */
-
-
-#include "kernel_pfkey_plugin.h"
-
-#include "kernel_pfkey_ipsec.h"
-
-#include <hydra.h>
-
-typedef struct private_kernel_pfkey_plugin_t private_kernel_pfkey_plugin_t;
-
-/**
- * private data of kernel PF_KEY plugin
- */
-struct private_kernel_pfkey_plugin_t {
-	/**
-	 * implements plugin interface
-	 */
-	kernel_pfkey_plugin_t public;
-};
-
-METHOD(plugin_t, get_name, char*,
-	private_kernel_pfkey_plugin_t *this)
-{
-	return "kernel-pfkey";
-}
-
-METHOD(plugin_t, get_features, int,
-	private_kernel_pfkey_plugin_t *this, plugin_feature_t *features[])
-{
-	static plugin_feature_t f[] = {
-		PLUGIN_CALLBACK(kernel_ipsec_register, kernel_pfkey_ipsec_create),
-			PLUGIN_PROVIDE(CUSTOM, "kernel-ipsec"),
-	};
-	*features = f;
-	return countof(f);
-}
-
-METHOD(plugin_t, destroy, void,
-	private_kernel_pfkey_plugin_t *this)
-{
-	free(this);
-}
-
-/*
- * see header file
- */
-plugin_t *kernel_pfkey_plugin_create()
-{
-	private_kernel_pfkey_plugin_t *this;
-
-	if (!lib->caps->check(lib->caps, CAP_NET_ADMIN))
-	{	/* required to open PF_KEY sockets */
-		DBG1(DBG_KNL, "kernel-pfkey plugin requires CAP_NET_ADMIN capability");
-		return NULL;
-	}
-
-	INIT(this,
-		.public = {
-			.plugin = {
-				.get_name = _get_name,
-				.get_features = _get_features,
-				.destroy = _destroy,
-			},
-		},
-	);
-
-	return &this->public.plugin;
-}
diff --git a/src/libhydra/plugins/kernel_pfkey/kernel_pfkey_plugin.h b/src/libhydra/plugins/kernel_pfkey/kernel_pfkey_plugin.h
deleted file mode 100644
index 51db4d8d3..000000000
--- a/src/libhydra/plugins/kernel_pfkey/kernel_pfkey_plugin.h
+++ /dev/null
@@ -1,42 +0,0 @@
-/*
- * Copyright (C) 2008 Tobias Brunner
- * 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_pfkey kernel_pfkey
- * @ingroup hplugins
- *
- * @defgroup kernel_pfkey_plugin kernel_pfkey_plugin
- * @{ @ingroup kernel_pfkey
- */
-
-#ifndef KERNEL_PFKEY_PLUGIN_H_
-#define KERNEL_PFKEY_PLUGIN_H_
-
-#include <plugins/plugin.h>
-
-typedef struct kernel_pfkey_plugin_t kernel_pfkey_plugin_t;
-
-/**
- * PF_KEY kernel interface plugin
- */
-struct kernel_pfkey_plugin_t {
-
-	/**
-	 * implements plugin interface
-	 */
-	plugin_t plugin;
-};
-
-#endif /** KERNEL_PFKEY_PLUGIN_H_ @}*/
diff --git a/src/libhydra/plugins/kernel_pfroute/Makefile.am b/src/libhydra/plugins/kernel_pfroute/Makefile.am
deleted file mode 100644
index 5129c02f6..000000000
--- a/src/libhydra/plugins/kernel_pfroute/Makefile.am
+++ /dev/null
@@ -1,19 +0,0 @@
-AM_CPPFLAGS = \
-	-I${linux_headers} \
-	-I$(top_srcdir)/src/libstrongswan \
-	-I$(top_srcdir)/src/libhydra
-
-AM_CFLAGS = \
-	$(PLUGIN_CFLAGS)
-
-if MONOLITHIC
-noinst_LTLIBRARIES = libstrongswan-kernel-pfroute.la
-else
-plugin_LTLIBRARIES = libstrongswan-kernel-pfroute.la
-endif
-
-libstrongswan_kernel_pfroute_la_SOURCES = \
-	kernel_pfroute_plugin.h kernel_pfroute_plugin.c \
-	kernel_pfroute_net.h kernel_pfroute_net.c
-
-libstrongswan_kernel_pfroute_la_LDFLAGS = -module -avoid-version
diff --git a/src/libhydra/plugins/kernel_pfroute/Makefile.in b/src/libhydra/plugins/kernel_pfroute/Makefile.in
deleted file mode 100644
index 9f676d21d..000000000
--- a/src/libhydra/plugins/kernel_pfroute/Makefile.in
+++ /dev/null
@@ -1,780 +0,0 @@
-# Makefile.in generated by automake 1.14.1 from Makefile.am.
-# @configure_input@
-
-# Copyright (C) 1994-2013 Free Software Foundation, Inc.
-
-# This Makefile.in is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
-
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
-# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
-# PARTICULAR PURPOSE.
-
-@SET_MAKE@
-
-VPATH = @srcdir@
-am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
-am__make_running_with_option = \
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-      ?) ;; \
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-am__make_dryrun = (target_option=n; $(am__make_running_with_option))
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-am_libstrongswan_kernel_pfroute_la_OBJECTS = kernel_pfroute_plugin.lo \
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-libstrongswan_kernel_pfroute_la_OBJECTS =  \
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-AM_V_lt = $(am__v_lt_@AM_V@)
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-@MONOLITHIC_FALSE@am_libstrongswan_kernel_pfroute_la_rpath = -rpath \
-@MONOLITHIC_FALSE@	$(plugindir)
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-	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
-	  else \
-	    test -f "$(distdir)/$$file" \
-	    || cp -p $$d/$$file "$(distdir)/$$file" \
-	    || exit 1; \
-	  fi; \
-	done
-check-am: all-am
-check: check-am
-all-am: Makefile $(LTLIBRARIES)
-installdirs:
-	for dir in "$(DESTDIR)$(plugindir)"; do \
-	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
-	done
-install: install-am
-install-exec: install-exec-am
-install-data: install-data-am
-uninstall: uninstall-am
-
-install-am: all-am
-	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
-
-installcheck: installcheck-am
-install-strip:
-	if test -z '$(STRIP)'; then \
-	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
-	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
-	      install; \
-	else \
-	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
-	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
-	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
-	fi
-mostlyclean-generic:
-
-clean-generic:
-
-distclean-generic:
-	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
-	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
-
-maintainer-clean-generic:
-	@echo "This command is intended for maintainers to use"
-	@echo "it deletes files that may require special tools to rebuild."
-clean: clean-am
-
-clean-am: clean-generic clean-libtool clean-noinstLTLIBRARIES \
-	clean-pluginLTLIBRARIES mostlyclean-am
-
-distclean: distclean-am
-	-rm -rf ./$(DEPDIR)
-	-rm -f Makefile
-distclean-am: clean-am distclean-compile distclean-generic \
-	distclean-tags
-
-dvi: dvi-am
-
-dvi-am:
-
-html: html-am
-
-html-am:
-
-info: info-am
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-info-am:
-
-install-data-am: install-pluginLTLIBRARIES
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-install-dvi-am:
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-install-ps-am:
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-	-rm -rf ./$(DEPDIR)
-	-rm -f Makefile
-maintainer-clean-am: distclean-am maintainer-clean-generic
-
-mostlyclean: mostlyclean-am
-
-mostlyclean-am: mostlyclean-compile mostlyclean-generic \
-	mostlyclean-libtool
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-pdf: pdf-am
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-uninstall-am: uninstall-pluginLTLIBRARIES
-
-.MAKE: install-am install-strip
-
-.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean clean-generic \
-	clean-libtool clean-noinstLTLIBRARIES clean-pluginLTLIBRARIES \
-	cscopelist-am ctags ctags-am distclean distclean-compile \
-	distclean-generic distclean-libtool distclean-tags distdir dvi \
-	dvi-am html html-am info info-am install install-am \
-	install-data install-data-am install-dvi install-dvi-am \
-	install-exec install-exec-am install-html install-html-am \
-	install-info install-info-am install-man install-pdf \
-	install-pdf-am install-pluginLTLIBRARIES install-ps \
-	install-ps-am install-strip installcheck installcheck-am \
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-
-
-# Tell versions [3.59,3.63) of GNU make to not export all variables.
-# Otherwise a system limit (for SysV at least) may be exceeded.
-.NOEXPORT:
diff --git a/src/libhydra/plugins/kernel_pfroute/kernel_pfroute_net.c b/src/libhydra/plugins/kernel_pfroute/kernel_pfroute_net.c
deleted file mode 100644
index df80c29b8..000000000
--- a/src/libhydra/plugins/kernel_pfroute/kernel_pfroute_net.c
+++ /dev/null
@@ -1,1903 +0,0 @@
-/*
- * Copyright (C) 2009-2013 Tobias Brunner
- * 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.
- */
-
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <net/if.h>
-#include <net/if_dl.h>
-#include <ifaddrs.h>
-#include <net/route.h>
-#include <unistd.h>
-#include <errno.h>
-
-#include "kernel_pfroute_net.h"
-
-#include <hydra.h>
-#include <utils/debug.h>
-#include <networking/host.h>
-#include <networking/tun_device.h>
-#include <threading/thread.h>
-#include <threading/mutex.h>
-#include <threading/condvar.h>
-#include <threading/rwlock.h>
-#include <threading/spinlock.h>
-#include <collections/hashtable.h>
-#include <collections/linked_list.h>
-#include <processing/jobs/callback_job.h>
-
-#ifndef HAVE_STRUCT_SOCKADDR_SA_LEN
-#error Cannot compile this plugin on systems where 'struct sockaddr' has no sa_len member.
-#endif
-
-/** properly align sockaddrs */
-#ifdef __APPLE__
-/* Apple always uses 4 bytes */
-#define SA_ALIGN 4
-#else
-/* while on other platforms like FreeBSD it depends on the architecture */
-#define SA_ALIGN sizeof(long)
-#endif
-#define SA_LEN(len) ((len) > 0 ? (((len)+SA_ALIGN-1) & ~(SA_ALIGN-1)) : SA_ALIGN)
-
-/** delay before firing roam events (ms) */
-#define ROAM_DELAY 100
-
-/** delay before reinstalling routes (ms) */
-#define ROUTE_DELAY 100
-
-typedef struct addr_entry_t addr_entry_t;
-
-/**
- * IP address in an inface_entry_t
- */
-struct addr_entry_t {
-
-	/** The ip address */
-	host_t *ip;
-
-	/** virtual IP managed by us */
-	bool virtual;
-};
-
-/**
- * destroy a addr_entry_t object
- */
-static void addr_entry_destroy(addr_entry_t *this)
-{
-	this->ip->destroy(this->ip);
-	free(this);
-}
-
-typedef struct iface_entry_t iface_entry_t;
-
-/**
- * A network interface on this system, containing addr_entry_t's
- */
-struct iface_entry_t {
-
-	/** interface index */
-	int ifindex;
-
-	/** name of the interface */
-	char ifname[IFNAMSIZ];
-
-	/** interface flags, as in netdevice(7) SIOCGIFFLAGS */
-	u_int flags;
-
-	/** list of addresses as host_t */
-	linked_list_t *addrs;
-
-	/** TRUE if usable by config */
-	bool usable;
-};
-
-/**
- * destroy an interface entry
- */
-static void iface_entry_destroy(iface_entry_t *this)
-{
-	this->addrs->destroy_function(this->addrs, (void*)addr_entry_destroy);
-	free(this);
-}
-
-/**
- * check if an interface is up
- */
-static inline bool iface_entry_up(iface_entry_t *iface)
-{
-	return (iface->flags & IFF_UP) == IFF_UP;
-}
-
-/**
- * check if an interface is up and usable
- */
-static inline bool iface_entry_up_and_usable(iface_entry_t *iface)
-{
-	return iface->usable && iface_entry_up(iface);
-}
-
-typedef struct addr_map_entry_t addr_map_entry_t;
-
-/**
- * Entry that maps an IP address to an interface entry
- */
-struct addr_map_entry_t {
-	/** The IP address */
-	host_t *ip;
-
-	/** The address entry for this IP address */
-	addr_entry_t *addr;
-
-	/** The interface this address is installed on */
-	iface_entry_t *iface;
-};
-
-/**
- * Hash a addr_map_entry_t object, all entries with the same IP address
- * are stored in the same bucket
- */
-static u_int addr_map_entry_hash(addr_map_entry_t *this)
-{
-	return chunk_hash(this->ip->get_address(this->ip));
-}
-
-/**
- * Compare two addr_map_entry_t objects, two entries are equal if they are
- * installed on the same interface
- */
-static bool addr_map_entry_equals(addr_map_entry_t *a, addr_map_entry_t *b)
-{
-	return a->iface->ifindex == b->iface->ifindex &&
-		   a->ip->ip_equals(a->ip, b->ip);
-}
-
-/**
- * Used with get_match this finds an address entry if it is installed on
- * an up and usable interface
- */
-static bool addr_map_entry_match_up_and_usable(addr_map_entry_t *a,
-											   addr_map_entry_t *b)
-{
-	return !b->addr->virtual && iface_entry_up_and_usable(b->iface) &&
-			a->ip->ip_equals(a->ip, b->ip);
-}
-
-/**
- * Used with get_match this finds an address entry if it is installed as virtual
- * IP address
- */
-static bool addr_map_entry_match_virtual(addr_map_entry_t *a, addr_map_entry_t *b)
-{
-	return b->addr->virtual && a->ip->ip_equals(a->ip, b->ip);
-}
-
-/**
- * Used with get_match this finds an address entry if it is installed on
- * any active local interface
- */
-static bool addr_map_entry_match_up(addr_map_entry_t *a, addr_map_entry_t *b)
-{
-	return !b->addr->virtual && iface_entry_up(b->iface) &&
-			a->ip->ip_equals(a->ip, b->ip);
-}
-
-typedef struct route_entry_t route_entry_t;
-
-/**
- * Installed routing entry
- */
-struct route_entry_t {
-	/** Name of the interface the route is bound to */
-	char *if_name;
-
-	/** Gateway for this route */
-	host_t *gateway;
-
-	/** Destination net */
-	chunk_t dst_net;
-
-	/** Destination net prefixlen */
-	u_int8_t prefixlen;
-};
-
-/**
- * Clone a route_entry_t object.
- */
-static route_entry_t *route_entry_clone(route_entry_t *this)
-{
-	route_entry_t *route;
-
-	INIT(route,
-		.if_name = strdup(this->if_name),
-		.gateway = this->gateway ? this->gateway->clone(this->gateway) : NULL,
-		.dst_net = chunk_clone(this->dst_net),
-		.prefixlen = this->prefixlen,
-	);
-	return route;
-}
-
-/**
- * Destroy a route_entry_t object
- */
-static void route_entry_destroy(route_entry_t *this)
-{
-	free(this->if_name);
-	DESTROY_IF(this->gateway);
-	chunk_free(&this->dst_net);
-	free(this);
-}
-
-/**
- * Hash a route_entry_t object
- */
-static u_int route_entry_hash(route_entry_t *this)
-{
-	return chunk_hash_inc(chunk_from_thing(this->prefixlen),
-						  chunk_hash(this->dst_net));
-}
-
-/**
- * Compare two route_entry_t objects
- */
-static bool route_entry_equals(route_entry_t *a, route_entry_t *b)
-{
-	if (a->if_name && b->if_name && streq(a->if_name, b->if_name) &&
-		chunk_equals(a->dst_net, b->dst_net) && a->prefixlen == b->prefixlen)
-	{
-		return (!a->gateway && !b->gateway) || (a->gateway && b->gateway &&
-					a->gateway->ip_equals(a->gateway, b->gateway));
-	}
-	return FALSE;
-}
-
-typedef struct net_change_t net_change_t;
-
-/**
- * Queued network changes
- */
-struct net_change_t {
-	/** Name of the interface that got activated (or an IP appeared on) */
-	char *if_name;
-};
-
-/**
- * Destroy a net_change_t object
- */
-static void net_change_destroy(net_change_t *this)
-{
-	free(this->if_name);
-	free(this);
-}
-
-/**
- * Hash a net_change_t object
- */
-static u_int net_change_hash(net_change_t *this)
-{
-	return chunk_hash(chunk_create(this->if_name, strlen(this->if_name)));
-}
-
-/**
- * Compare two net_change_t objects
- */
-static bool net_change_equals(net_change_t *a, net_change_t *b)
-{
-	return streq(a->if_name, b->if_name);
-}
-
-typedef struct private_kernel_pfroute_net_t private_kernel_pfroute_net_t;
-
-/**
- * Private variables and functions of kernel_pfroute class.
- */
-struct private_kernel_pfroute_net_t
-{
-	/**
-	 * Public part of the kernel_pfroute_t object.
-	 */
-	kernel_pfroute_net_t public;
-
-	/**
-	 * lock to access lists and maps
-	 */
-	rwlock_t *lock;
-
-	/**
-	 * Cached list of interfaces and their addresses (iface_entry_t)
-	 */
-	linked_list_t *ifaces;
-
-	/**
-	 * Map for IP addresses to iface_entry_t objects (addr_map_entry_t)
-	 */
-	hashtable_t *addrs;
-
-	/**
-	 * List of tun devices we installed for virtual IPs
-	 */
-	linked_list_t *tuns;
-
-	/**
-	 * mutex to communicate exclusively with PF_KEY
-	 */
-	mutex_t *mutex;
-
-	/**
-	 * condvar to signal if PF_KEY query got a response
-	 */
-	condvar_t *condvar;
-
-	/**
-	 * installed routes
-	 */
-	hashtable_t *routes;
-
-	/**
-	 * mutex for routes
-	 */
-	mutex_t *routes_lock;
-
-	/**
-	 * interface changes which may trigger route reinstallation
-	 */
-	hashtable_t *net_changes;
-
-	/**
-	 * mutex for route reinstallation triggers
-	 */
-	mutex_t *net_changes_lock;
-
-	/**
-	 * time of last route reinstallation
-	 */
-	timeval_t last_route_reinstall;
-
-	/**
-	 * pid to send PF_ROUTE messages with
-	 */
-	pid_t pid;
-
-	/**
-	 * PF_ROUTE socket to communicate with the kernel
-	 */
-	int socket;
-
-	/**
-	 * sequence number for messages sent to the kernel
-	 */
-	int seq;
-
-	/**
-	 * Sequence number a query is waiting for
-	 */
-	int waiting_seq;
-
-	/**
-	 * Allocated reply message from kernel
-	 */
-	struct rt_msghdr *reply;
-
-	/**
-	 * earliest time of the next roam event
-	 */
-	timeval_t next_roam;
-
-	/**
-	 * roam event due to address change
-	 */
-	bool roam_address;
-
-	/**
-	 * lock to check and update roam event time
-	 */
-	spinlock_t *roam_lock;
-
-	/**
-	 * Time in ms to wait for IP addresses to appear/disappear
-	 */
-	int vip_wait;
-
-	/**
-	 * whether to actually install virtual IPs
-	 */
-	bool install_virtual_ip;
-};
-
-
-/**
- * Forward declaration
- */
-static status_t manage_route(private_kernel_pfroute_net_t *this, int op,
-							 chunk_t dst_net, u_int8_t prefixlen,
-							 host_t *gateway, char *if_name);
-
-/**
- * Clear the queued network changes.
- */
-static void net_changes_clear(private_kernel_pfroute_net_t *this)
-{
-	enumerator_t *enumerator;
-	net_change_t *change;
-
-	enumerator = this->net_changes->create_enumerator(this->net_changes);
-	while (enumerator->enumerate(enumerator, NULL, (void**)&change))
-	{
-		this->net_changes->remove_at(this->net_changes, enumerator);
-		net_change_destroy(change);
-	}
-	enumerator->destroy(enumerator);
-}
-
-/**
- * Act upon queued network changes.
- */
-static job_requeue_t reinstall_routes(private_kernel_pfroute_net_t *this)
-{
-	enumerator_t *enumerator;
-	route_entry_t *route;
-
-	this->net_changes_lock->lock(this->net_changes_lock);
-	this->routes_lock->lock(this->routes_lock);
-
-	enumerator = this->routes->create_enumerator(this->routes);
-	while (enumerator->enumerate(enumerator, NULL, (void**)&route))
-	{
-		net_change_t *change, lookup = {
-			.if_name = route->if_name,
-		};
-		/* check if a change for the outgoing interface is queued */
-		change = this->net_changes->get(this->net_changes, &lookup);
-		if (change)
-		{
-			manage_route(this, RTM_ADD, route->dst_net, route->prefixlen,
-						 route->gateway, route->if_name);
-		}
-	}
-	enumerator->destroy(enumerator);
-	this->routes_lock->unlock(this->routes_lock);
-
-	net_changes_clear(this);
-	this->net_changes_lock->unlock(this->net_changes_lock);
-	return JOB_REQUEUE_NONE;
-}
-
-/**
- * Queue route reinstallation caused by network changes for a given interface.
- *
- * The route reinstallation is delayed for a while and only done once for
- * several calls during this delay, in order to avoid doing it too often.
- * The interface name is freed.
- */
-static void queue_route_reinstall(private_kernel_pfroute_net_t *this,
-								  char *if_name)
-{
-	net_change_t *update, *found;
-	timeval_t now;
-	job_t *job;
-
-	INIT(update,
-		.if_name = if_name
-	);
-
-	this->net_changes_lock->lock(this->net_changes_lock);
-	found = this->net_changes->put(this->net_changes, update, update);
-	if (found)
-	{
-		net_change_destroy(found);
-	}
-	time_monotonic(&now);
-	if (timercmp(&now, &this->last_route_reinstall, >))
-	{
-		timeval_add_ms(&now, ROUTE_DELAY);
-		this->last_route_reinstall = now;
-
-		job = (job_t*)callback_job_create((callback_job_cb_t)reinstall_routes,
-										  this, NULL, NULL);
-		lib->scheduler->schedule_job_ms(lib->scheduler, job, ROUTE_DELAY);
-	}
-	this->net_changes_lock->unlock(this->net_changes_lock);
-}
-
-/**
- * Add an address map entry
- */
-static void addr_map_entry_add(private_kernel_pfroute_net_t *this,
-							   addr_entry_t *addr, iface_entry_t *iface)
-{
-	addr_map_entry_t *entry;
-
-	INIT(entry,
-		.ip = addr->ip,
-		.addr = addr,
-		.iface = iface,
-	);
-	entry = this->addrs->put(this->addrs, entry, entry);
-	free(entry);
-}
-
-/**
- * Remove an address map entry (the argument order is a bit strange because
- * it is also used with linked_list_t.invoke_function)
- */
-static void addr_map_entry_remove(addr_entry_t *addr, iface_entry_t *iface,
-								  private_kernel_pfroute_net_t *this)
-{
-	addr_map_entry_t *entry, lookup = {
-		.ip = addr->ip,
-		.addr = addr,
-		.iface = iface,
-	};
-
-	entry = this->addrs->remove(this->addrs, &lookup);
-	free(entry);
-}
-
-/**
- * callback function that raises the delayed roam event
- */
-static job_requeue_t roam_event(private_kernel_pfroute_net_t *this)
-{
-	bool address;
-
-	this->roam_lock->lock(this->roam_lock);
-	address = this->roam_address;
-	this->roam_address = FALSE;
-	this->roam_lock->unlock(this->roam_lock);
-	hydra->kernel_interface->roam(hydra->kernel_interface, address);
-	return JOB_REQUEUE_NONE;
-}
-
-/**
- * fire a roaming event. we delay it for a bit and fire only one event
- * for multiple calls. otherwise we would create too many events.
- */
-static void fire_roam_event(private_kernel_pfroute_net_t *this, bool address)
-{
-	timeval_t now;
-	job_t *job;
-
-	time_monotonic(&now);
-	this->roam_lock->lock(this->roam_lock);
-	this->roam_address |= address;
-	if (!timercmp(&now, &this->next_roam, >))
-	{
-		this->roam_lock->unlock(this->roam_lock);
-		return;
-	}
-	timeval_add_ms(&now, ROAM_DELAY);
-	this->next_roam = now;
-	this->roam_lock->unlock(this->roam_lock);
-
-	job = (job_t*)callback_job_create((callback_job_cb_t)roam_event,
-									  this, NULL, NULL);
-	lib->scheduler->schedule_job_ms(lib->scheduler, job, ROAM_DELAY);
-}
-
-/**
- * Data for enumerator over rtmsg sockaddrs
- */
-typedef struct {
-	/** implements enumerator */
-	enumerator_t public;
-	/** copy of attribute bitfield */
-	int types;
-	/** bytes remaining in buffer */
-	int remaining;
-	/** next sockaddr to enumerate */
-	struct sockaddr *addr;
-} rt_enumerator_t;
-
-METHOD(enumerator_t, rt_enumerate, bool,
-	rt_enumerator_t *this, int *xtype, struct sockaddr **addr)
-{
-	int i, type;
-
-	if (this->remaining < sizeof(this->addr->sa_len) ||
-		this->remaining < this->addr->sa_len)
-	{
-		return FALSE;
-	}
-	for (i = 0; i < RTAX_MAX; i++)
-	{
-		type = (1 << i);
-		if (this->types & type)
-		{
-			this->types &= ~type;
-			*addr = this->addr;
-			*xtype = i;
-			this->remaining -= SA_LEN(this->addr->sa_len);
-			this->addr = (struct sockaddr*)((char*)this->addr +
-											SA_LEN(this->addr->sa_len));
-			return TRUE;
-		}
-	}
-	return FALSE;
-}
-
-/**
- * Create an enumerator over sockaddrs in rt/if messages
- */
-static enumerator_t *create_rt_enumerator(int types, int remaining,
-										  struct sockaddr *addr)
-{
-	rt_enumerator_t *this;
-
-	INIT(this,
-		.public = {
-			.enumerate = (void*)_rt_enumerate,
-			.destroy = (void*)free,
-		},
-		.types = types,
-		.remaining = remaining,
-		.addr = addr,
-	);
-	return &this->public;
-}
-
-/**
- * Create a safe enumerator over sockaddrs in rt_msghdr
- */
-static enumerator_t *create_rtmsg_enumerator(struct rt_msghdr *hdr)
-{
-	return create_rt_enumerator(hdr->rtm_addrs, hdr->rtm_msglen - sizeof(*hdr),
-								(struct sockaddr *)(hdr + 1));
-}
-
-/**
- * Create a safe enumerator over sockaddrs in ifa_msghdr
- */
-static enumerator_t *create_ifamsg_enumerator(struct ifa_msghdr *hdr)
-{
-	return create_rt_enumerator(hdr->ifam_addrs, hdr->ifam_msglen - sizeof(*hdr),
-								(struct sockaddr *)(hdr + 1));
-}
-
-/**
- * Process an RTM_*ADDR message from the kernel
- */
-static void process_addr(private_kernel_pfroute_net_t *this,
-						 struct ifa_msghdr *ifa)
-{
-	struct sockaddr *sockaddr;
-	host_t *host = NULL;
-	enumerator_t *ifaces, *addrs;
-	iface_entry_t *iface;
-	addr_entry_t *addr;
-	bool found = FALSE, changed = FALSE, roam = FALSE;
-	enumerator_t *enumerator;
-	char *ifname = NULL;
-	int type;
-
-	enumerator = create_ifamsg_enumerator(ifa);
-	while (enumerator->enumerate(enumerator, &type, &sockaddr))
-	{
-		if (type == RTAX_IFA)
-		{
-			host = host_create_from_sockaddr(sockaddr);
-			break;
-		}
-	}
-	enumerator->destroy(enumerator);
-
-	if (!host || host->is_anyaddr(host))
-	{
-		DESTROY_IF(host);
-		return;
-	}
-
-	this->lock->write_lock(this->lock);
-	ifaces = this->ifaces->create_enumerator(this->ifaces);
-	while (ifaces->enumerate(ifaces, &iface))
-	{
-		if (iface->ifindex == ifa->ifam_index)
-		{
-			addrs = iface->addrs->create_enumerator(iface->addrs);
-			while (addrs->enumerate(addrs, &addr))
-			{
-				if (host->ip_equals(host, addr->ip))
-				{
-					found = TRUE;
-					if (ifa->ifam_type == RTM_DELADDR)
-					{
-						iface->addrs->remove_at(iface->addrs, addrs);
-						if (!addr->virtual && iface->usable)
-						{
-							changed = TRUE;
-							DBG1(DBG_KNL, "%H disappeared from %s",
-								 host, iface->ifname);
-						}
-						addr_map_entry_remove(addr, iface, this);
-						addr_entry_destroy(addr);
-					}
-				}
-			}
-			addrs->destroy(addrs);
-
-			if (!found && ifa->ifam_type == RTM_NEWADDR)
-			{
-				INIT(addr,
-					.ip = host->clone(host),
-				);
-				changed = TRUE;
-				ifname = strdup(iface->ifname);
-				iface->addrs->insert_last(iface->addrs, addr);
-				addr_map_entry_add(this, addr, iface);
-				if (iface->usable)
-				{
-					DBG1(DBG_KNL, "%H appeared on %s", host, iface->ifname);
-				}
-			}
-
-			if (changed && iface_entry_up_and_usable(iface))
-			{
-				roam = TRUE;
-			}
-			break;
-		}
-	}
-	ifaces->destroy(ifaces);
-	this->lock->unlock(this->lock);
-	host->destroy(host);
-
-	if (roam && ifname)
-	{
-		queue_route_reinstall(this, ifname);
-	}
-	else
-	{
-		free(ifname);
-	}
-
-	if (roam)
-	{
-		fire_roam_event(this, TRUE);
-	}
-}
-
-/**
- * Re-initialize address list of an interface if it changes state
- */
-static void repopulate_iface(private_kernel_pfroute_net_t *this,
-							 iface_entry_t *iface)
-{
-	struct ifaddrs *ifap, *ifa;
-	addr_entry_t *addr;
-
-	while (iface->addrs->remove_last(iface->addrs, (void**)&addr) == SUCCESS)
-	{
-		addr_map_entry_remove(addr, iface, this);
-		addr_entry_destroy(addr);
-	}
-
-	if (getifaddrs(&ifap) == 0)
-	{
-		for (ifa = ifap; ifa != NULL; ifa = ifa->ifa_next)
-		{
-			if (ifa->ifa_addr && streq(ifa->ifa_name, iface->ifname))
-			{
-				switch (ifa->ifa_addr->sa_family)
-				{
-					case AF_INET:
-					case AF_INET6:
-						INIT(addr,
-							.ip = host_create_from_sockaddr(ifa->ifa_addr),
-						);
-						iface->addrs->insert_last(iface->addrs, addr);
-						addr_map_entry_add(this, addr, iface);
-						break;
-					default:
-						break;
-				}
-			}
-		}
-		freeifaddrs(ifap);
-	}
-}
-
-/**
- * Process an RTM_IFINFO message from the kernel
- */
-static void process_link(private_kernel_pfroute_net_t *this,
-						 struct if_msghdr *msg)
-{
-	enumerator_t *enumerator;
-	iface_entry_t *iface;
-	bool roam = FALSE, found = FALSE, update_routes = FALSE;
-
-	this->lock->write_lock(this->lock);
-	enumerator = this->ifaces->create_enumerator(this->ifaces);
-	while (enumerator->enumerate(enumerator, &iface))
-	{
-		if (iface->ifindex == msg->ifm_index)
-		{
-			if (iface->usable)
-			{
-				if (!(iface->flags & IFF_UP) && (msg->ifm_flags & IFF_UP))
-				{
-					roam = update_routes = TRUE;
-					DBG1(DBG_KNL, "interface %s activated", iface->ifname);
-				}
-				else if ((iface->flags & IFF_UP) && !(msg->ifm_flags & IFF_UP))
-				{
-					roam = TRUE;
-					DBG1(DBG_KNL, "interface %s deactivated", iface->ifname);
-				}
-			}
-#ifdef __APPLE__
-			/* There seems to be a race condition on 10.10, where we get
-			 * the RTM_IFINFO, but getifaddrs() does not return the virtual
-			 * IP installed on a tun device, but we also don't get a
-			 * RTM_NEWADDR. We therefore could miss the new address, letting
-			 * virtual IP installation fail. Delaying getifaddrs() helps,
-			 * but is obviously not a clean fix. */
-			usleep(50000);
-#endif
-			iface->flags = msg->ifm_flags;
-			repopulate_iface(this, iface);
-			found = TRUE;
-			break;
-		}
-	}
-	enumerator->destroy(enumerator);
-
-	if (!found)
-	{
-		INIT(iface,
-			.ifindex = msg->ifm_index,
-			.flags = msg->ifm_flags,
-			.addrs = linked_list_create(),
-		);
-		if (if_indextoname(iface->ifindex, iface->ifname))
-		{
-			DBG1(DBG_KNL, "interface %s appeared", iface->ifname);
-			iface->usable = hydra->kernel_interface->is_interface_usable(
-										hydra->kernel_interface, iface->ifname);
-			repopulate_iface(this, iface);
-			this->ifaces->insert_last(this->ifaces, iface);
-			if (iface->usable)
-			{
-				roam = update_routes = TRUE;
-			}
-		}
-		else
-		{
-			free(iface);
-		}
-	}
-	this->lock->unlock(this->lock);
-
-	if (update_routes)
-	{
-		queue_route_reinstall(this, strdup(iface->ifname));
-	}
-
-	if (roam)
-	{
-		fire_roam_event(this, TRUE);
-	}
-}
-
-#ifdef HAVE_RTM_IFANNOUNCE
-
-/**
- * Process an RTM_IFANNOUNCE message from the kernel
- */
-static void process_announce(private_kernel_pfroute_net_t *this,
-							 struct if_announcemsghdr *msg)
-{
-	enumerator_t *enumerator;
-	iface_entry_t *iface;
-
-	if (msg->ifan_what != IFAN_DEPARTURE)
-	{
-		/* we handle new interfaces in process_link() */
-		return;
-	}
-
-	this->lock->write_lock(this->lock);
-	enumerator = this->ifaces->create_enumerator(this->ifaces);
-	while (enumerator->enumerate(enumerator, &iface))
-	{
-		if (iface->ifindex == msg->ifan_index)
-		{
-			DBG1(DBG_KNL, "interface %s disappeared", iface->ifname);
-			this->ifaces->remove_at(this->ifaces, enumerator);
-			iface_entry_destroy(iface);
-			break;
-		}
-	}
-	enumerator->destroy(enumerator);
-	this->lock->unlock(this->lock);
-}
-
-#endif /* HAVE_RTM_IFANNOUNCE */
-
-/**
- * Process an RTM_*ROUTE message from the kernel
- */
-static void process_route(private_kernel_pfroute_net_t *this,
-						  struct rt_msghdr *msg)
-{
-
-}
-
-/**
- * Receives PF_ROUTE messages from kernel
- */
-static bool receive_events(private_kernel_pfroute_net_t *this, int fd,
-						   watcher_event_t event)
-{
-	struct {
-		union {
-			struct rt_msghdr rtm;
-			struct if_msghdr ifm;
-			struct ifa_msghdr ifam;
-#ifdef HAVE_RTM_IFANNOUNCE
-			struct if_announcemsghdr ifanm;
-#endif
-		};
-		char buf[sizeof(struct sockaddr_storage) * RTAX_MAX];
-	} msg;
-	int len, hdrlen;
-
-	len = recv(this->socket, &msg, sizeof(msg), MSG_DONTWAIT);
-	if (len < 0)
-	{
-		switch (errno)
-		{
-			case EINTR:
-			case EAGAIN:
-				return TRUE;
-			default:
-				DBG1(DBG_KNL, "unable to receive from PF_ROUTE event socket");
-				sleep(1);
-				return TRUE;
-		}
-	}
-
-	if (len < offsetof(struct rt_msghdr, rtm_flags) || len < msg.rtm.rtm_msglen)
-	{
-		DBG1(DBG_KNL, "received invalid PF_ROUTE message");
-		return TRUE;
-	}
-	if (msg.rtm.rtm_version != RTM_VERSION)
-	{
-		DBG1(DBG_KNL, "received PF_ROUTE message with unsupported version: %d",
-			 msg.rtm.rtm_version);
-		return TRUE;
-	}
-	switch (msg.rtm.rtm_type)
-	{
-		case RTM_NEWADDR:
-		case RTM_DELADDR:
-			hdrlen = sizeof(msg.ifam);
-			break;
-		case RTM_IFINFO:
-			hdrlen = sizeof(msg.ifm);
-			break;
-#ifdef HAVE_RTM_IFANNOUNCE
-		case RTM_IFANNOUNCE:
-			hdrlen = sizeof(msg.ifanm);
-			break;
-#endif /* HAVE_RTM_IFANNOUNCE */
-		case RTM_ADD:
-		case RTM_DELETE:
-		case RTM_GET:
-			hdrlen = sizeof(msg.rtm);
-			break;
-		default:
-			return TRUE;
-	}
-	if (msg.rtm.rtm_msglen < hdrlen)
-	{
-		DBG1(DBG_KNL, "ignoring short PF_ROUTE message");
-		return TRUE;
-	}
-	switch (msg.rtm.rtm_type)
-	{
-		case RTM_NEWADDR:
-		case RTM_DELADDR:
-			process_addr(this, &msg.ifam);
-			break;
-		case RTM_IFINFO:
-			process_link(this, &msg.ifm);
-			break;
-#ifdef HAVE_RTM_IFANNOUNCE
-		case RTM_IFANNOUNCE:
-			process_announce(this, &msg.ifanm);
-			break;
-#endif /* HAVE_RTM_IFANNOUNCE */
-		case RTM_ADD:
-		case RTM_DELETE:
-			process_route(this, &msg.rtm);
-			break;
-		default:
-			break;
-	}
-
-	this->mutex->lock(this->mutex);
-	if (msg.rtm.rtm_pid == this->pid && msg.rtm.rtm_seq == this->waiting_seq)
-	{
-		/* seems like the message someone is waiting for, deliver */
-		this->reply = realloc(this->reply, msg.rtm.rtm_msglen);
-		memcpy(this->reply, &msg, msg.rtm.rtm_msglen);
-	}
-	/* signal on any event, add_ip()/del_ip() might wait for it */
-	this->condvar->broadcast(this->condvar);
-	this->mutex->unlock(this->mutex);
-
-	return TRUE;
-}
-
-
-/** enumerator over addresses */
-typedef struct {
-	private_kernel_pfroute_net_t* this;
-	/** which addresses to enumerate */
-	kernel_address_type_t which;
-} address_enumerator_t;
-
-/**
- * cleanup function for address enumerator
- */
-static void address_enumerator_destroy(address_enumerator_t *data)
-{
-	data->this->lock->unlock(data->this->lock);
-	free(data);
-}
-
-/**
- * filter for addresses
- */
-static bool filter_addresses(address_enumerator_t *data,
-							 addr_entry_t** in, host_t** out)
-{
-	host_t *ip;
-	if (!(data->which & ADDR_TYPE_VIRTUAL) && (*in)->virtual)
-	{   /* skip virtual interfaces added by us */
-		return FALSE;
-	}
-	if (!(data->which & ADDR_TYPE_REGULAR) && !(*in)->virtual)
-	{	/* address is regular, but not requested */
-		return FALSE;
-	}
-	ip = (*in)->ip;
-	if (ip->get_family(ip) == AF_INET6)
-	{
-		struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)ip->get_sockaddr(ip);
-		if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr))
-		{   /* skip addresses with a unusable scope */
-			return FALSE;
-		}
-	}
-	*out = ip;
-	return TRUE;
-}
-
-/**
- * enumerator constructor for interfaces
- */
-static enumerator_t *create_iface_enumerator(iface_entry_t *iface,
-											 address_enumerator_t *data)
-{
-	return enumerator_create_filter(iface->addrs->create_enumerator(iface->addrs),
-									(void*)filter_addresses, data, NULL);
-}
-
-/**
- * filter for interfaces
- */
-static bool filter_interfaces(address_enumerator_t *data, iface_entry_t** in,
-							  iface_entry_t** out)
-{
-	if (!(data->which & ADDR_TYPE_IGNORED) && !(*in)->usable)
-	{	/* skip interfaces excluded by config */
-		return FALSE;
-	}
-	if (!(data->which & ADDR_TYPE_LOOPBACK) && ((*in)->flags & IFF_LOOPBACK))
-	{	/* ignore loopback devices */
-		return FALSE;
-	}
-	if (!(data->which & ADDR_TYPE_DOWN) && !((*in)->flags & IFF_UP))
-	{	/* skip interfaces not up */
-		return FALSE;
-	}
-	*out = *in;
-	return TRUE;
-}
-
-METHOD(kernel_net_t, create_address_enumerator, enumerator_t*,
-	private_kernel_pfroute_net_t *this, kernel_address_type_t which)
-{
-	address_enumerator_t *data;
-
-	INIT(data,
-		.this = this,
-		.which = which,
-	);
-
-	this->lock->read_lock(this->lock);
-	return enumerator_create_nested(
-				enumerator_create_filter(
-					this->ifaces->create_enumerator(this->ifaces),
-					(void*)filter_interfaces, data, NULL),
-				(void*)create_iface_enumerator, data,
-				(void*)address_enumerator_destroy);
-}
-
-METHOD(kernel_net_t, get_features, kernel_feature_t,
-	private_kernel_pfroute_net_t *this)
-{
-	return KERNEL_REQUIRE_EXCLUDE_ROUTE;
-}
-
-METHOD(kernel_net_t, get_interface_name, bool,
-	private_kernel_pfroute_net_t *this, host_t* ip, char **name)
-{
-	addr_map_entry_t *entry, lookup = {
-		.ip = ip,
-	};
-
-	if (ip->is_anyaddr(ip))
-	{
-		return FALSE;
-	}
-	this->lock->read_lock(this->lock);
-	/* first try to find it on an up and usable interface */
-	entry = this->addrs->get_match(this->addrs, &lookup,
-								  (void*)addr_map_entry_match_up_and_usable);
-	if (entry)
-	{
-		if (name)
-		{
-			*name = strdup(entry->iface->ifname);
-			DBG2(DBG_KNL, "%H is on interface %s", ip, *name);
-		}
-		this->lock->unlock(this->lock);
-		return TRUE;
-	}
-	/* check if it is a virtual IP */
-	entry = this->addrs->get_match(this->addrs, &lookup,
-								  (void*)addr_map_entry_match_virtual);
-	if (entry)
-	{
-		if (name)
-		{
-			*name = strdup(entry->iface->ifname);
-			DBG2(DBG_KNL, "virtual IP %H is on interface %s", ip, *name);
-		}
-		this->lock->unlock(this->lock);
-		return TRUE;
-	}
-	/* maybe it is installed on an ignored interface */
-	entry = this->addrs->get_match(this->addrs, &lookup,
-								  (void*)addr_map_entry_match_up);
-	if (!entry)
-	{	/* the address does not exist, is on a down interface */
-		DBG2(DBG_KNL, "%H is not a local address or the interface is down", ip);
-	}
-	this->lock->unlock(this->lock);
-	return FALSE;
-}
-
-METHOD(kernel_net_t, add_ip, status_t,
-	private_kernel_pfroute_net_t *this, host_t *vip, int prefix,
-	char *ifname)
-{
-	enumerator_t *ifaces, *addrs;
-	iface_entry_t *iface;
-	addr_entry_t *addr;
-	tun_device_t *tun;
-	bool timeout = FALSE;
-
-	if (!this->install_virtual_ip)
-	{	/* disabled by config */
-		return SUCCESS;
-	}
-
-	tun = tun_device_create(NULL);
-	if (!tun)
-	{
-		return FAILED;
-	}
-	if (prefix == -1)
-	{
-		prefix = vip->get_address(vip).len * 8;
-	}
-	if (!tun->up(tun) || !tun->set_address(tun, vip, prefix))
-	{
-		tun->destroy(tun);
-		return FAILED;
-	}
-
-	/* wait until address appears */
-	this->mutex->lock(this->mutex);
-	while (!timeout && !get_interface_name(this, vip, NULL))
-	{
-		timeout = this->condvar->timed_wait(this->condvar, this->mutex,
-											this->vip_wait);
-	}
-	this->mutex->unlock(this->mutex);
-	if (timeout)
-	{
-		DBG1(DBG_KNL, "virtual IP %H did not appear on %s",
-			 vip, tun->get_name(tun));
-		tun->destroy(tun);
-		return FAILED;
-	}
-
-	this->lock->write_lock(this->lock);
-	this->tuns->insert_last(this->tuns, tun);
-
-	ifaces = this->ifaces->create_enumerator(this->ifaces);
-	while (ifaces->enumerate(ifaces, &iface))
-	{
-		if (streq(iface->ifname, tun->get_name(tun)))
-		{
-			addrs = iface->addrs->create_enumerator(iface->addrs);
-			while (addrs->enumerate(addrs, &addr))
-			{
-				if (addr->ip->ip_equals(addr->ip, vip))
-				{
-					addr->virtual = TRUE;
-				}
-			}
-			addrs->destroy(addrs);
-			/* during IKEv1 reauthentication, children get moved from
-			 * old the new SA before the virtual IP is available. This
-			 * kills the route for our virtual IP, reinstall. */
-			queue_route_reinstall(this, strdup(iface->ifname));
-			break;
-		}
-	}
-	ifaces->destroy(ifaces);
-	/* lets do this while holding the lock, thus preventing another thread
-	 * from deleting the TUN device concurrently, hopefully listeners are quick
-	 * and cause no deadlocks */
-	hydra->kernel_interface->tun(hydra->kernel_interface, tun, TRUE);
-	this->lock->unlock(this->lock);
-
-	return SUCCESS;
-}
-
-METHOD(kernel_net_t, del_ip, status_t,
-	private_kernel_pfroute_net_t *this, host_t *vip, int prefix,
-	bool wait)
-{
-	enumerator_t *enumerator;
-	tun_device_t *tun;
-	host_t *addr;
-	bool timeout = FALSE, found = FALSE;
-
-	if (!this->install_virtual_ip)
-	{	/* disabled by config */
-		return SUCCESS;
-	}
-
-	this->lock->write_lock(this->lock);
-	enumerator = this->tuns->create_enumerator(this->tuns);
-	while (enumerator->enumerate(enumerator, &tun))
-	{
-		addr = tun->get_address(tun, NULL);
-		if (addr && addr->ip_equals(addr, vip))
-		{
-			this->tuns->remove_at(this->tuns, enumerator);
-			hydra->kernel_interface->tun(hydra->kernel_interface, tun,
-										 FALSE);
-			tun->destroy(tun);
-			found = TRUE;
-			break;
-		}
-	}
-	enumerator->destroy(enumerator);
-	this->lock->unlock(this->lock);
-
-	if (!found)
-	{
-		return NOT_FOUND;
-	}
-	/* wait until address disappears */
-	if (wait)
-	{
-		this->mutex->lock(this->mutex);
-		while (!timeout && get_interface_name(this, vip, NULL))
-		{
-			timeout = this->condvar->timed_wait(this->condvar, this->mutex,
-												this->vip_wait);
-		}
-		this->mutex->unlock(this->mutex);
-		if (timeout)
-		{
-			DBG1(DBG_KNL, "virtual IP %H did not disappear from tun", vip);
-			return FAILED;
-		}
-	}
-	return SUCCESS;
-}
-
-/**
- * Append a sockaddr_in/in6 of given type to routing message
- */
-static void add_rt_addr(struct rt_msghdr *hdr, int type, host_t *addr)
-{
-	if (addr)
-	{
-		int len;
-
-		len = *addr->get_sockaddr_len(addr);
-		memcpy((char*)hdr + hdr->rtm_msglen, addr->get_sockaddr(addr), len);
-		hdr->rtm_msglen += SA_LEN(len);
-		hdr->rtm_addrs |= type;
-	}
-}
-
-/**
- * Append a subnet mask sockaddr using the given prefix to routing message
- */
-static void add_rt_mask(struct rt_msghdr *hdr, int type, int family, int prefix)
-{
-	host_t *mask;
-
-	mask = host_create_netmask(family, prefix);
-	if (mask)
-	{
-		add_rt_addr(hdr, type, mask);
-		mask->destroy(mask);
-	}
-}
-
-/**
- * Append an interface name sockaddr_dl to routing message
- */
-static void add_rt_ifname(struct rt_msghdr *hdr, int type, char *name)
-{
-	struct sockaddr_dl sdl = {
-		.sdl_len = sizeof(struct sockaddr_dl),
-		.sdl_family = AF_LINK,
-		.sdl_nlen = strlen(name),
-	};
-
-	if (strlen(name) <= sizeof(sdl.sdl_data))
-	{
-		memcpy(sdl.sdl_data, name, sdl.sdl_nlen);
-		memcpy((char*)hdr + hdr->rtm_msglen, &sdl, sdl.sdl_len);
-		hdr->rtm_msglen += SA_LEN(sdl.sdl_len);
-		hdr->rtm_addrs |= type;
-	}
-}
-
-/**
- * Add or remove a route
- */
-static status_t manage_route(private_kernel_pfroute_net_t *this, int op,
-							 chunk_t dst_net, u_int8_t prefixlen,
-							 host_t *gateway, char *if_name)
-{
-	struct {
-		struct rt_msghdr hdr;
-		char buf[sizeof(struct sockaddr_storage) * RTAX_MAX];
-	} msg = {
-		.hdr = {
-			.rtm_version = RTM_VERSION,
-			.rtm_type = op,
-			.rtm_flags = RTF_UP | RTF_STATIC,
-			.rtm_pid = this->pid,
-			.rtm_seq = ref_get(&this->seq),
-		},
-	};
-	host_t *dst;
-	int type;
-
-	if (prefixlen == 0 && dst_net.len)
-	{
-		status_t status;
-		chunk_t half;
-
-		half = chunk_clonea(dst_net);
-		half.ptr[0] |= 0x80;
-		prefixlen = 1;
-		status = manage_route(this, op, half, prefixlen, gateway, if_name);
-		if (status != SUCCESS)
-		{
-			return status;
-		}
-	}
-
-	dst = host_create_from_chunk(AF_UNSPEC, dst_net, 0);
-	if (!dst)
-	{
-		return FAILED;
-	}
-
-	if ((dst->get_family(dst) == AF_INET && prefixlen == 32) ||
-		(dst->get_family(dst) == AF_INET6 && prefixlen == 128))
-	{
-		msg.hdr.rtm_flags |= RTF_HOST | RTF_GATEWAY;
-	}
-
-	msg.hdr.rtm_msglen = sizeof(struct rt_msghdr);
-	for (type = 0; type < RTAX_MAX; type++)
-	{
-		switch (type)
-		{
-			case RTAX_DST:
-				add_rt_addr(&msg.hdr, RTA_DST, dst);
-				break;
-			case RTAX_NETMASK:
-				if (!(msg.hdr.rtm_flags & RTF_HOST))
-				{
-					add_rt_mask(&msg.hdr, RTA_NETMASK,
-								dst->get_family(dst), prefixlen);
-				}
-				break;
-			case RTAX_IFP:
-				if (if_name)
-				{
-					add_rt_ifname(&msg.hdr, RTA_IFP, if_name);
-				}
-				break;
-			case RTAX_GATEWAY:
-				if (gateway)
-				{
-					add_rt_addr(&msg.hdr, RTA_GATEWAY, gateway);
-				}
-				break;
-			default:
-				break;
-		}
-	}
-	dst->destroy(dst);
-
-	if (send(this->socket, &msg, msg.hdr.rtm_msglen, 0) != msg.hdr.rtm_msglen)
-	{
-		if (errno == EEXIST)
-		{
-			return ALREADY_DONE;
-		}
-		DBG1(DBG_KNL, "%s PF_ROUTE route failed: %s",
-			 op == RTM_ADD ? "adding" : "deleting", strerror(errno));
-		return FAILED;
-	}
-	return SUCCESS;
-}
-
-METHOD(kernel_net_t, add_route, status_t,
-	private_kernel_pfroute_net_t *this, chunk_t dst_net, u_int8_t prefixlen,
-	host_t *gateway, host_t *src_ip, char *if_name)
-{
-	status_t status;
-	route_entry_t *found, route = {
-		.dst_net = dst_net,
-		.prefixlen = prefixlen,
-		.gateway = gateway,
-		.if_name = if_name,
-	};
-
-	this->routes_lock->lock(this->routes_lock);
-	found = this->routes->get(this->routes, &route);
-	if (found)
-	{
-		this->routes_lock->unlock(this->routes_lock);
-		return ALREADY_DONE;
-	}
-	status = manage_route(this, RTM_ADD, dst_net, prefixlen, gateway, if_name);
-	if (status == SUCCESS)
-	{
-		found = route_entry_clone(&route);
-		this->routes->put(this->routes, found, found);
-	}
-	this->routes_lock->unlock(this->routes_lock);
-	return status;
-}
-
-METHOD(kernel_net_t, del_route, status_t,
-	private_kernel_pfroute_net_t *this, chunk_t dst_net, u_int8_t prefixlen,
-	host_t *gateway, host_t *src_ip, char *if_name)
-{
-	status_t status;
-	route_entry_t *found, route = {
-		.dst_net = dst_net,
-		.prefixlen = prefixlen,
-		.gateway = gateway,
-		.if_name = if_name,
-	};
-
-	this->routes_lock->lock(this->routes_lock);
-	found = this->routes->get(this->routes, &route);
-	if (!found)
-	{
-		this->routes_lock->unlock(this->routes_lock);
-		return NOT_FOUND;
-	}
-	this->routes->remove(this->routes, found);
-	route_entry_destroy(found);
-	status = manage_route(this, RTM_DELETE, dst_net, prefixlen, gateway,
-						  if_name);
-	this->routes_lock->unlock(this->routes_lock);
-	return status;
-}
-
-/**
- * Do a route lookup for dest and return either the nexthop or the source
- * address.
- */
-static host_t *get_route(private_kernel_pfroute_net_t *this, bool nexthop,
-						 host_t *dest, host_t *src)
-{
-	struct {
-		struct rt_msghdr hdr;
-		char buf[sizeof(struct sockaddr_storage) * RTAX_MAX];
-	} msg = {
-		.hdr = {
-			.rtm_version = RTM_VERSION,
-			.rtm_type = RTM_GET,
-			.rtm_pid = this->pid,
-			.rtm_seq = ref_get(&this->seq),
-		},
-	};
-	host_t *host = NULL;
-	enumerator_t *enumerator;
-	struct sockaddr *addr;
-	bool failed = FALSE;
-	int type;
-
-retry:
-	msg.hdr.rtm_msglen = sizeof(struct rt_msghdr);
-	for (type = 0; type < RTAX_MAX; type++)
-	{
-		switch (type)
-		{
-			case RTAX_DST:
-				add_rt_addr(&msg.hdr, RTA_DST, dest);
-				break;
-			case RTAX_IFA:
-				add_rt_addr(&msg.hdr, RTA_IFA, src);
-				break;
-			case RTAX_IFP:
-				if (!nexthop)
-				{	/* add an empty IFP to ensure we get a source address */
-					add_rt_ifname(&msg.hdr, RTA_IFP, "");
-				}
-				break;
-			default:
-				break;
-		}
-	}
-	this->mutex->lock(this->mutex);
-
-	while (this->waiting_seq)
-	{
-		this->condvar->wait(this->condvar, this->mutex);
-	}
-	this->waiting_seq = msg.hdr.rtm_seq;
-	if (send(this->socket, &msg, msg.hdr.rtm_msglen, 0) == msg.hdr.rtm_msglen)
-	{
-		while (TRUE)
-		{
-			if (this->condvar->timed_wait(this->condvar, this->mutex, 1000))
-			{	/* timed out? */
-				break;
-			}
-			if (!this->reply)
-			{
-				continue;
-			}
-			enumerator = create_rtmsg_enumerator(this->reply);
-			while (enumerator->enumerate(enumerator, &type, &addr))
-			{
-				if (nexthop)
-				{
-					if (type == RTAX_DST && this->reply->rtm_flags & RTF_HOST)
-					{	/* probably a cloned/cached direct route, only use that
-						 * as fallback if no gateway is found */
-						host = host ?: host_create_from_sockaddr(addr);
-					}
-					if (type == RTAX_GATEWAY)
-					{	/* could actually be a MAC address */
-						host_t *gtw = host_create_from_sockaddr(addr);
-						if (gtw)
-						{
-							DESTROY_IF(host);
-							host = gtw;
-						}
-					}
-				}
-				else
-				{
-					if (type == RTAX_IFA)
-					{
-						host = host_create_from_sockaddr(addr);
-					}
-				}
-			}
-			enumerator->destroy(enumerator);
-			break;
-		}
-	}
-	else
-	{
-		failed = TRUE;
-	}
-	free(this->reply);
-	this->reply = NULL;
-	/* signal completion of query to a waiting thread */
-	this->waiting_seq = 0;
-	this->condvar->signal(this->condvar);
-	this->mutex->unlock(this->mutex);
-
-	if (failed)
-	{
-		if (src)
-		{	/* the given source address might be gone, try again without */
-			src = NULL;
-			msg.hdr.rtm_seq = ref_get(&this->seq);
-			msg.hdr.rtm_addrs = 0;
-			memset(msg.buf, 0, sizeof(msg.buf));
-			goto retry;
-		}
-		DBG1(DBG_KNL, "PF_ROUTE lookup failed: %s", strerror(errno));
-	}
-	if (nexthop)
-	{
-		host = host ?: dest->clone(dest);
-	}
-	else
-	{	/* make sure the source address is not virtual and usable */
-		addr_entry_t *entry, lookup = {
-			.ip = host,
-		};
-
-		if (!host)
-		{
-			return NULL;
-		}
-		this->lock->read_lock(this->lock);
-		entry = this->addrs->get_match(this->addrs, &lookup,
-									(void*)addr_map_entry_match_up_and_usable);
-		this->lock->unlock(this->lock);
-		if (!entry)
-		{
-			host->destroy(host);
-			return NULL;
-		}
-	}
-	DBG2(DBG_KNL, "using %H as %s to reach %H", host,
-		 nexthop ? "nexthop" : "address", dest);
-	return host;
-}
-
-METHOD(kernel_net_t, get_source_addr, host_t*,
-	private_kernel_pfroute_net_t *this, host_t *dest, host_t *src)
-{
-	return get_route(this, FALSE, dest, src);
-}
-
-METHOD(kernel_net_t, get_nexthop, host_t*,
-	private_kernel_pfroute_net_t *this, host_t *dest, int prefix, host_t *src)
-{
-	return get_route(this, TRUE, dest, src);
-}
-
-/**
- * Initialize a list of local addresses.
- */
-static status_t init_address_list(private_kernel_pfroute_net_t *this)
-{
-	struct ifaddrs *ifap, *ifa;
-	iface_entry_t *iface, *current;
-	addr_entry_t *addr;
-	enumerator_t *ifaces, *addrs;
-
-	DBG2(DBG_KNL, "known interfaces and IP addresses:");
-
-	if (getifaddrs(&ifap) < 0)
-	{
-		DBG1(DBG_KNL, "  failed to get interfaces!");
-		return FAILED;
-	}
-
-	for (ifa = ifap; ifa != NULL; ifa = ifa->ifa_next)
-	{
-		if (ifa->ifa_addr == NULL)
-		{
-			continue;
-		}
-		switch(ifa->ifa_addr->sa_family)
-		{
-			case AF_LINK:
-			case AF_INET:
-			case AF_INET6:
-			{
-				iface = NULL;
-				ifaces = this->ifaces->create_enumerator(this->ifaces);
-				while (ifaces->enumerate(ifaces, &current))
-				{
-					if (streq(current->ifname, ifa->ifa_name))
-					{
-						iface = current;
-						break;
-					}
-				}
-				ifaces->destroy(ifaces);
-
-				if (!iface)
-				{
-					INIT(iface,
-						.ifindex = if_nametoindex(ifa->ifa_name),
-						.flags = ifa->ifa_flags,
-						.addrs = linked_list_create(),
-						.usable = hydra->kernel_interface->is_interface_usable(
-										hydra->kernel_interface, ifa->ifa_name),
-					);
-					memcpy(iface->ifname, ifa->ifa_name, IFNAMSIZ);
-					this->ifaces->insert_last(this->ifaces, iface);
-				}
-
-				if (ifa->ifa_addr->sa_family != AF_LINK)
-				{
-					INIT(addr,
-						.ip = host_create_from_sockaddr(ifa->ifa_addr),
-					);
-					iface->addrs->insert_last(iface->addrs, addr);
-					addr_map_entry_add(this, addr, iface);
-				}
-			}
-		}
-	}
-	freeifaddrs(ifap);
-
-	ifaces = this->ifaces->create_enumerator(this->ifaces);
-	while (ifaces->enumerate(ifaces, &iface))
-	{
-		if (iface->usable && iface->flags & IFF_UP)
-		{
-			DBG2(DBG_KNL, "  %s", iface->ifname);
-			addrs = iface->addrs->create_enumerator(iface->addrs);
-			while (addrs->enumerate(addrs, (void**)&addr))
-			{
-				DBG2(DBG_KNL, "    %H", addr->ip);
-			}
-			addrs->destroy(addrs);
-		}
-	}
-	ifaces->destroy(ifaces);
-
-	return SUCCESS;
-}
-
-METHOD(kernel_net_t, destroy, void,
-	private_kernel_pfroute_net_t *this)
-{
-	enumerator_t *enumerator;
-	route_entry_t *route;
-	addr_entry_t *addr;
-
-	enumerator = this->routes->create_enumerator(this->routes);
-	while (enumerator->enumerate(enumerator, NULL, (void**)&route))
-	{
-		manage_route(this, RTM_DELETE, route->dst_net, route->prefixlen,
-					 route->gateway, route->if_name);
-		route_entry_destroy(route);
-	}
-	enumerator->destroy(enumerator);
-	this->routes->destroy(this->routes);
-	this->routes_lock->destroy(this->routes_lock);
-
-	if (this->socket != -1)
-	{
-		lib->watcher->remove(lib->watcher, this->socket);
-		close(this->socket);
-	}
-
-	net_changes_clear(this);
-	this->net_changes->destroy(this->net_changes);
-	this->net_changes_lock->destroy(this->net_changes_lock);
-
-	enumerator = this->addrs->create_enumerator(this->addrs);
-	while (enumerator->enumerate(enumerator, NULL, (void**)&addr))
-	{
-		free(addr);
-	}
-	enumerator->destroy(enumerator);
-	this->addrs->destroy(this->addrs);
-	this->ifaces->destroy_function(this->ifaces, (void*)iface_entry_destroy);
-	this->tuns->destroy(this->tuns);
-	this->lock->destroy(this->lock);
-	this->mutex->destroy(this->mutex);
-	this->condvar->destroy(this->condvar);
-	this->roam_lock->destroy(this->roam_lock);
-	free(this->reply);
-	free(this);
-}
-
-/*
- * Described in header.
- */
-kernel_pfroute_net_t *kernel_pfroute_net_create()
-{
-	private_kernel_pfroute_net_t *this;
-
-	INIT(this,
-		.public = {
-			.interface = {
-				.get_features = _get_features,
-				.get_interface = _get_interface_name,
-				.create_address_enumerator = _create_address_enumerator,
-				.get_source_addr = _get_source_addr,
-				.get_nexthop = _get_nexthop,
-				.add_ip = _add_ip,
-				.del_ip = _del_ip,
-				.add_route = _add_route,
-				.del_route = _del_route,
-				.destroy = _destroy,
-			},
-		},
-		.pid = getpid(),
-		.ifaces = linked_list_create(),
-		.addrs = hashtable_create(
-								(hashtable_hash_t)addr_map_entry_hash,
-								(hashtable_equals_t)addr_map_entry_equals, 16),
-		.routes = hashtable_create((hashtable_hash_t)route_entry_hash,
-								   (hashtable_equals_t)route_entry_equals, 16),
-		.net_changes = hashtable_create(
-								   (hashtable_hash_t)net_change_hash,
-								   (hashtable_equals_t)net_change_equals, 16),
-		.tuns = linked_list_create(),
-		.lock = rwlock_create(RWLOCK_TYPE_DEFAULT),
-		.mutex = mutex_create(MUTEX_TYPE_DEFAULT),
-		.condvar = condvar_create(CONDVAR_TYPE_DEFAULT),
-		.routes_lock = mutex_create(MUTEX_TYPE_DEFAULT),
-		.net_changes_lock = mutex_create(MUTEX_TYPE_DEFAULT),
-		.roam_lock = spinlock_create(),
-		.vip_wait = lib->settings->get_int(lib->settings,
-						"%s.plugins.kernel-pfroute.vip_wait", 1000, lib->ns),
-		.install_virtual_ip = lib->settings->get_bool(lib->settings,
-						"%s.install_virtual_ip", TRUE, lib->ns),
-	);
-	timerclear(&this->last_route_reinstall);
-	timerclear(&this->next_roam);
-
-	/* create a PF_ROUTE socket to communicate with the kernel */
-	this->socket = socket(PF_ROUTE, SOCK_RAW, AF_UNSPEC);
-	if (this->socket == -1)
-	{
-		DBG1(DBG_KNL, "unable to create PF_ROUTE socket");
-		destroy(this);
-		return NULL;
-	}
-
-	if (streq(lib->ns, "starter"))
-	{
-		/* starter has no threads, so we do not register for kernel events */
-		if (shutdown(this->socket, SHUT_RD) != 0)
-		{
-			DBG1(DBG_KNL, "closing read end of PF_ROUTE socket failed: %s",
-				 strerror(errno));
-		}
-	}
-	else
-	{
-		lib->watcher->add(lib->watcher, this->socket, WATCHER_READ,
-						  (watcher_cb_t)receive_events, this);
-	}
-	if (init_address_list(this) != SUCCESS)
-	{
-		DBG1(DBG_KNL, "unable to get interface list");
-		destroy(this);
-		return NULL;
-	}
-
-	return &this->public;
-}
diff --git a/src/libhydra/plugins/kernel_pfroute/kernel_pfroute_net.h b/src/libhydra/plugins/kernel_pfroute/kernel_pfroute_net.h
deleted file mode 100644
index 10c3c9eb7..000000000
--- a/src/libhydra/plugins/kernel_pfroute/kernel_pfroute_net.h
+++ /dev/null
@@ -1,46 +0,0 @@
-/*
- * Copyright (C) 2009 Tobias Brunner
- * 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_pfroute_net_i kernel_pfroute_net
- * @{ @ingroup kernel_pfroute
- */
-
-#ifndef KERNEL_PFROUTE_NET_H_
-#define KERNEL_PFROUTE_NET_H_
-
-#include <kernel/kernel_net.h>
-
-typedef struct kernel_pfroute_net_t kernel_pfroute_net_t;
-
-/**
- * Implementation of the kernel net interface using PF_ROUTE.
- */
-struct kernel_pfroute_net_t {
-
-	/**
-	 * Implements kernel_net_t interface
-	 */
-	kernel_net_t interface;
-};
-
-/**
- * Create a PF_ROUTE kernel net interface instance.
- *
- * @return			kernel_pfroute_net_t instance
- */
-kernel_pfroute_net_t *kernel_pfroute_net_create();
-
-#endif /** KERNEL_PFROUTE_NET_H_ @}*/
diff --git a/src/libhydra/plugins/kernel_pfroute/kernel_pfroute_plugin.c b/src/libhydra/plugins/kernel_pfroute/kernel_pfroute_plugin.c
deleted file mode 100644
index 09068b33e..000000000
--- a/src/libhydra/plugins/kernel_pfroute/kernel_pfroute_plugin.c
+++ /dev/null
@@ -1,76 +0,0 @@
-/*
- * Copyright (C) 2009 Tobias Brunner
- * 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.
- */
-
-
-#include "kernel_pfroute_plugin.h"
-
-#include "kernel_pfroute_net.h"
-
-#include <hydra.h>
-
-typedef struct private_kernel_pfroute_plugin_t private_kernel_pfroute_plugin_t;
-
-/**
- * private data of kernel PF_ROUTE plugin
- */
-struct private_kernel_pfroute_plugin_t {
-	/**
-	 * implements plugin interface
-	 */
-	kernel_pfroute_plugin_t public;
-};
-
-METHOD(plugin_t, get_name, char*,
-	private_kernel_pfroute_plugin_t *this)
-{
-	return "kernel-pfroute";
-}
-
-METHOD(plugin_t, get_features, int,
-	private_kernel_pfroute_plugin_t *this, plugin_feature_t *features[])
-{
-	static plugin_feature_t f[] = {
-		PLUGIN_CALLBACK(kernel_net_register, kernel_pfroute_net_create),
-			PLUGIN_PROVIDE(CUSTOM, "kernel-net"),
-	};
-	*features = f;
-	return countof(f);
-}
-
-METHOD(plugin_t, destroy, void,
-	private_kernel_pfroute_plugin_t *this)
-{
-	free(this);
-}
-
-/*
- * see header file
- */
-plugin_t *kernel_pfroute_plugin_create()
-{
-	private_kernel_pfroute_plugin_t *this;
-
-	INIT(this,
-		.public = {
-			.plugin = {
-				.get_name = _get_name,
-				.get_features = _get_features,
-				.destroy = _destroy,
-			},
-		},
-	);
-
-	return &this->public.plugin;
-}
diff --git a/src/libhydra/plugins/kernel_pfroute/kernel_pfroute_plugin.h b/src/libhydra/plugins/kernel_pfroute/kernel_pfroute_plugin.h
deleted file mode 100644
index b8ee31a1d..000000000
--- a/src/libhydra/plugins/kernel_pfroute/kernel_pfroute_plugin.h
+++ /dev/null
@@ -1,42 +0,0 @@
-/*
- * Copyright (C) 2009 Tobias Brunner
- * 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_pfroute kernel_pfroute
- * @ingroup hplugins
- *
- * @defgroup kernel_pfroute_plugin kernel_pfroute_plugin
- * @{ @ingroup kernel_pfroute
- */
-
-#ifndef KERNEL_PFROUTE_PLUGIN_H_
-#define KERNEL_PFROUTE_PLUGIN_H_
-
-#include <plugins/plugin.h>
-
-typedef struct kernel_pfroute_plugin_t kernel_pfroute_plugin_t;
-
-/**
- * PF_ROUTE kernel interface plugin
- */
-struct kernel_pfroute_plugin_t {
-
-	/**
-	 * implements plugin interface
-	 */
-	plugin_t plugin;
-};
-
-#endif /** KERNEL_PFROUTE_PLUGIN_H_ @}*/