Imported Upstream version 5.4.0

6 files changed, 0 insertions, 2866 deletions

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 @@
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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 @@
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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_ @}*/