IPVS: Move IPVS to net/netfilter/ipvs

Since IPVS now has partial IPv6 support, this patch moves IPVS from
net/ipv4/ipvs to net/netfilter/ipvs. It's a result of:

$ git mv net/ipv4/ipvs net/netfilter

and adapting the relevant Kconfigs/Makefiles to the new path.

Signed-off-by: Julius Volz <juliusv@google.com>
Signed-off-by: Simon Horman <horms@verge.net.au>

1 files changed, 0 insertions, 3443 deletions

diff --git a/net/ipv4/ipvs/ip_vs_ctl.c b/net/ipv4/ipvs/ip_vs_ctl.c
deleted file mode 100644
index 0302cf3e5039..000000000000
--- a/net/ipv4/ipvs/ip_vs_ctl.c
+++ /dev/null
@@ -1,3443 +0,0 @@
-/*
- * IPVS         An implementation of the IP virtual server support for the
- *              LINUX operating system.  IPVS is now implemented as a module
- *              over the NetFilter framework. IPVS can be used to build a
- *              high-performance and highly available server based on a
- *              cluster of servers.
- *
- * Authors:     Wensong Zhang <wensong@linuxvirtualserver.org>
- *              Peter Kese <peter.kese@ijs.si>
- *              Julian Anastasov <ja@ssi.bg>
- *
- *              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.
- *
- * Changes:
- *
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/types.h>
-#include <linux/capability.h>
-#include <linux/fs.h>
-#include <linux/sysctl.h>
-#include <linux/proc_fs.h>
-#include <linux/workqueue.h>
-#include <linux/swap.h>
-#include <linux/seq_file.h>
-
-#include <linux/netfilter.h>
-#include <linux/netfilter_ipv4.h>
-#include <linux/mutex.h>
-
-#include <net/net_namespace.h>
-#include <net/ip.h>
-#ifdef CONFIG_IP_VS_IPV6
-#include <net/ipv6.h>
-#include <net/ip6_route.h>
-#endif
-#include <net/route.h>
-#include <net/sock.h>
-#include <net/genetlink.h>
-
-#include <asm/uaccess.h>
-
-#include <net/ip_vs.h>
-
-/* semaphore for IPVS sockopts. And, [gs]etsockopt may sleep. */
-static DEFINE_MUTEX(__ip_vs_mutex);
-
-/* lock for service table */
-static DEFINE_RWLOCK(__ip_vs_svc_lock);
-
-/* lock for table with the real services */
-static DEFINE_RWLOCK(__ip_vs_rs_lock);
-
-/* lock for state and timeout tables */
-static DEFINE_RWLOCK(__ip_vs_securetcp_lock);
-
-/* lock for drop entry handling */
-static DEFINE_SPINLOCK(__ip_vs_dropentry_lock);
-
-/* lock for drop packet handling */
-static DEFINE_SPINLOCK(__ip_vs_droppacket_lock);
-
-/* 1/rate drop and drop-entry variables */
-int ip_vs_drop_rate = 0;
-int ip_vs_drop_counter = 0;
-static atomic_t ip_vs_dropentry = ATOMIC_INIT(0);
-
-/* number of virtual services */
-static int ip_vs_num_services = 0;
-
-/* sysctl variables */
-static int sysctl_ip_vs_drop_entry = 0;
-static int sysctl_ip_vs_drop_packet = 0;
-static int sysctl_ip_vs_secure_tcp = 0;
-static int sysctl_ip_vs_amemthresh = 1024;
-static int sysctl_ip_vs_am_droprate = 10;
-int sysctl_ip_vs_cache_bypass = 0;
-int sysctl_ip_vs_expire_nodest_conn = 0;
-int sysctl_ip_vs_expire_quiescent_template = 0;
-int sysctl_ip_vs_sync_threshold[2] = { 3, 50 };
-int sysctl_ip_vs_nat_icmp_send = 0;
-
-
-#ifdef CONFIG_IP_VS_DEBUG
-static int sysctl_ip_vs_debug_level = 0;
-
-int ip_vs_get_debug_level(void)
-{
-	return sysctl_ip_vs_debug_level;
-}
-#endif
-
-#ifdef CONFIG_IP_VS_IPV6
-/* Taken from rt6_fill_node() in net/ipv6/route.c, is there a better way? */
-static int __ip_vs_addr_is_local_v6(const struct in6_addr *addr)
-{
-	struct rt6_info *rt;
-	struct flowi fl = {
-		.oif = 0,
-		.nl_u = {
-			.ip6_u = {
-				.daddr = *addr,
-				.saddr = { .s6_addr32 = {0, 0, 0, 0} }, } },
-	};
-
-	rt = (struct rt6_info *)ip6_route_output(&init_net, NULL, &fl);
-	if (rt && rt->rt6i_dev && (rt->rt6i_dev->flags & IFF_LOOPBACK))
-			return 1;
-
-	return 0;
-}
-#endif
-/*
- *	update_defense_level is called from keventd and from sysctl,
- *	so it needs to protect itself from softirqs
- */
-static void update_defense_level(void)
-{
-	struct sysinfo i;
-	static int old_secure_tcp = 0;
-	int availmem;
-	int nomem;
-	int to_change = -1;
-
-	/* we only count free and buffered memory (in pages) */
-	si_meminfo(&i);
-	availmem = i.freeram + i.bufferram;
-	/* however in linux 2.5 the i.bufferram is total page cache size,
-	   we need adjust it */
-	/* si_swapinfo(&i); */
-	/* availmem = availmem - (i.totalswap - i.freeswap); */
-
-	nomem = (availmem < sysctl_ip_vs_amemthresh);
-
-	local_bh_disable();
-
-	/* drop_entry */
-	spin_lock(&__ip_vs_dropentry_lock);
-	switch (sysctl_ip_vs_drop_entry) {
-	case 0:
-		atomic_set(&ip_vs_dropentry, 0);
-		break;
-	case 1:
-		if (nomem) {
-			atomic_set(&ip_vs_dropentry, 1);
-			sysctl_ip_vs_drop_entry = 2;
-		} else {
-			atomic_set(&ip_vs_dropentry, 0);
-		}
-		break;
-	case 2:
-		if (nomem) {
-			atomic_set(&ip_vs_dropentry, 1);
-		} else {
-			atomic_set(&ip_vs_dropentry, 0);
-			sysctl_ip_vs_drop_entry = 1;
-		};
-		break;
-	case 3:
-		atomic_set(&ip_vs_dropentry, 1);
-		break;
-	}
-	spin_unlock(&__ip_vs_dropentry_lock);
-
-	/* drop_packet */
-	spin_lock(&__ip_vs_droppacket_lock);
-	switch (sysctl_ip_vs_drop_packet) {
-	case 0:
-		ip_vs_drop_rate = 0;
-		break;
-	case 1:
-		if (nomem) {
-			ip_vs_drop_rate = ip_vs_drop_counter
-				= sysctl_ip_vs_amemthresh /
-				(sysctl_ip_vs_amemthresh-availmem);
-			sysctl_ip_vs_drop_packet = 2;
-		} else {
-			ip_vs_drop_rate = 0;
-		}
-		break;
-	case 2:
-		if (nomem) {
-			ip_vs_drop_rate = ip_vs_drop_counter
-				= sysctl_ip_vs_amemthresh /
-				(sysctl_ip_vs_amemthresh-availmem);
-		} else {
-			ip_vs_drop_rate = 0;
-			sysctl_ip_vs_drop_packet = 1;
-		}
-		break;
-	case 3:
-		ip_vs_drop_rate = sysctl_ip_vs_am_droprate;
-		break;
-	}
-	spin_unlock(&__ip_vs_droppacket_lock);
-
-	/* secure_tcp */
-	write_lock(&__ip_vs_securetcp_lock);
-	switch (sysctl_ip_vs_secure_tcp) {
-	case 0:
-		if (old_secure_tcp >= 2)
-			to_change = 0;
-		break;
-	case 1:
-		if (nomem) {
-			if (old_secure_tcp < 2)
-				to_change = 1;
-			sysctl_ip_vs_secure_tcp = 2;
-		} else {
-			if (old_secure_tcp >= 2)
-				to_change = 0;
-		}
-		break;
-	case 2:
-		if (nomem) {
-			if (old_secure_tcp < 2)
-				to_change = 1;
-		} else {
-			if (old_secure_tcp >= 2)
-				to_change = 0;
-			sysctl_ip_vs_secure_tcp = 1;
-		}
-		break;
-	case 3:
-		if (old_secure_tcp < 2)
-			to_change = 1;
-		break;
-	}
-	old_secure_tcp = sysctl_ip_vs_secure_tcp;
-	if (to_change >= 0)
-		ip_vs_protocol_timeout_change(sysctl_ip_vs_secure_tcp>1);
-	write_unlock(&__ip_vs_securetcp_lock);
-
-	local_bh_enable();
-}
-
-
-/*
- *	Timer for checking the defense
- */
-#define DEFENSE_TIMER_PERIOD	1*HZ
-static void defense_work_handler(struct work_struct *work);
-static DECLARE_DELAYED_WORK(defense_work, defense_work_handler);
-
-static void defense_work_handler(struct work_struct *work)
-{
-	update_defense_level();
-	if (atomic_read(&ip_vs_dropentry))
-		ip_vs_random_dropentry();
-
-	schedule_delayed_work(&defense_work, DEFENSE_TIMER_PERIOD);
-}
-
-int
-ip_vs_use_count_inc(void)
-{
-	return try_module_get(THIS_MODULE);
-}
-
-void
-ip_vs_use_count_dec(void)
-{
-	module_put(THIS_MODULE);
-}
-
-
-/*
- *	Hash table: for virtual service lookups
- */
-#define IP_VS_SVC_TAB_BITS 8
-#define IP_VS_SVC_TAB_SIZE (1 << IP_VS_SVC_TAB_BITS)
-#define IP_VS_SVC_TAB_MASK (IP_VS_SVC_TAB_SIZE - 1)
-
-/* the service table hashed by <protocol, addr, port> */
-static struct list_head ip_vs_svc_table[IP_VS_SVC_TAB_SIZE];
-/* the service table hashed by fwmark */
-static struct list_head ip_vs_svc_fwm_table[IP_VS_SVC_TAB_SIZE];
-
-/*
- *	Hash table: for real service lookups
- */
-#define IP_VS_RTAB_BITS 4
-#define IP_VS_RTAB_SIZE (1 << IP_VS_RTAB_BITS)
-#define IP_VS_RTAB_MASK (IP_VS_RTAB_SIZE - 1)
-
-static struct list_head ip_vs_rtable[IP_VS_RTAB_SIZE];
-
-/*
- *	Trash for destinations
- */
-static LIST_HEAD(ip_vs_dest_trash);
-
-/*
- *	FTP & NULL virtual service counters
- */
-static atomic_t ip_vs_ftpsvc_counter = ATOMIC_INIT(0);
-static atomic_t ip_vs_nullsvc_counter = ATOMIC_INIT(0);
-
-
-/*
- *	Returns hash value for virtual service
- */
-static __inline__ unsigned
-ip_vs_svc_hashkey(int af, unsigned proto, const union nf_inet_addr *addr,
-		  __be16 port)
-{
-	register unsigned porth = ntohs(port);
-	__be32 addr_fold = addr->ip;
-
-#ifdef CONFIG_IP_VS_IPV6
-	if (af == AF_INET6)
-		addr_fold = addr->ip6[0]^addr->ip6[1]^
-			    addr->ip6[2]^addr->ip6[3];
-#endif
-
-	return (proto^ntohl(addr_fold)^(porth>>IP_VS_SVC_TAB_BITS)^porth)
-		& IP_VS_SVC_TAB_MASK;
-}
-
-/*
- *	Returns hash value of fwmark for virtual service lookup
- */
-static __inline__ unsigned ip_vs_svc_fwm_hashkey(__u32 fwmark)
-{
-	return fwmark & IP_VS_SVC_TAB_MASK;
-}
-
-/*
- *	Hashes a service in the ip_vs_svc_table by <proto,addr,port>
- *	or in the ip_vs_svc_fwm_table by fwmark.
- *	Should be called with locked tables.
- */
-static int ip_vs_svc_hash(struct ip_vs_service *svc)
-{
-	unsigned hash;
-
-	if (svc->flags & IP_VS_SVC_F_HASHED) {
-		IP_VS_ERR("ip_vs_svc_hash(): request for already hashed, "
-			  "called from %p\n", __builtin_return_address(0));
-		return 0;
-	}
-
-	if (svc->fwmark == 0) {
-		/*
-		 *  Hash it by <protocol,addr,port> in ip_vs_svc_table
-		 */
-		hash = ip_vs_svc_hashkey(svc->af, svc->protocol, &svc->addr,
-					 svc->port);
-		list_add(&svc->s_list, &ip_vs_svc_table[hash]);
-	} else {
-		/*
-		 *  Hash it by fwmark in ip_vs_svc_fwm_table
-		 */
-		hash = ip_vs_svc_fwm_hashkey(svc->fwmark);
-		list_add(&svc->f_list, &ip_vs_svc_fwm_table[hash]);
-	}
-
-	svc->flags |= IP_VS_SVC_F_HASHED;
-	/* increase its refcnt because it is referenced by the svc table */
-	atomic_inc(&svc->refcnt);
-	return 1;
-}
-
-
-/*
- *	Unhashes a service from ip_vs_svc_table/ip_vs_svc_fwm_table.
- *	Should be called with locked tables.
- */
-static int ip_vs_svc_unhash(struct ip_vs_service *svc)
-{
-	if (!(svc->flags & IP_VS_SVC_F_HASHED)) {
-		IP_VS_ERR("ip_vs_svc_unhash(): request for unhash flagged, "
-			  "called from %p\n", __builtin_return_address(0));
-		return 0;
-	}
-
-	if (svc->fwmark == 0) {
-		/* Remove it from the ip_vs_svc_table table */
-		list_del(&svc->s_list);
-	} else {
-		/* Remove it from the ip_vs_svc_fwm_table table */
-		list_del(&svc->f_list);
-	}
-
-	svc->flags &= ~IP_VS_SVC_F_HASHED;
-	atomic_dec(&svc->refcnt);
-	return 1;
-}
-
-
-/*
- *	Get service by {proto,addr,port} in the service table.
- */
-static inline struct ip_vs_service *
-__ip_vs_service_get(int af, __u16 protocol, const union nf_inet_addr *vaddr,
-		    __be16 vport)
-{
-	unsigned hash;
-	struct ip_vs_service *svc;
-
-	/* Check for "full" addressed entries */
-	hash = ip_vs_svc_hashkey(af, protocol, vaddr, vport);
-
-	list_for_each_entry(svc, &ip_vs_svc_table[hash], s_list){
-		if ((svc->af == af)
-		    && ip_vs_addr_equal(af, &svc->addr, vaddr)
-		    && (svc->port == vport)
-		    && (svc->protocol == protocol)) {
-			/* HIT */
-			atomic_inc(&svc->usecnt);
-			return svc;
-		}
-	}
-
-	return NULL;
-}
-
-
-/*
- *	Get service by {fwmark} in the service table.
- */
-static inline struct ip_vs_service *
-__ip_vs_svc_fwm_get(int af, __u32 fwmark)
-{
-	unsigned hash;
-	struct ip_vs_service *svc;
-
-	/* Check for fwmark addressed entries */
-	hash = ip_vs_svc_fwm_hashkey(fwmark);
-
-	list_for_each_entry(svc, &ip_vs_svc_fwm_table[hash], f_list) {
-		if (svc->fwmark == fwmark && svc->af == af) {
-			/* HIT */
-			atomic_inc(&svc->usecnt);
-			return svc;
-		}
-	}
-
-	return NULL;
-}
-
-struct ip_vs_service *
-ip_vs_service_get(int af, __u32 fwmark, __u16 protocol,
-		  const union nf_inet_addr *vaddr, __be16 vport)
-{
-	struct ip_vs_service *svc;
-
-	read_lock(&__ip_vs_svc_lock);
-
-	/*
-	 *	Check the table hashed by fwmark first
-	 */
-	if (fwmark && (svc = __ip_vs_svc_fwm_get(af, fwmark)))
-		goto out;
-
-	/*
-	 *	Check the table hashed by <protocol,addr,port>
-	 *	for "full" addressed entries
-	 */
-	svc = __ip_vs_service_get(af, protocol, vaddr, vport);
-
-	if (svc == NULL
-	    && protocol == IPPROTO_TCP
-	    && atomic_read(&ip_vs_ftpsvc_counter)
-	    && (vport == FTPDATA || ntohs(vport) >= PROT_SOCK)) {
-		/*
-		 * Check if ftp service entry exists, the packet
-		 * might belong to FTP data connections.
-		 */
-		svc = __ip_vs_service_get(af, protocol, vaddr, FTPPORT);
-	}
-
-	if (svc == NULL
-	    && atomic_read(&ip_vs_nullsvc_counter)) {
-		/*
-		 * Check if the catch-all port (port zero) exists
-		 */
-		svc = __ip_vs_service_get(af, protocol, vaddr, 0);
-	}
-
-  out:
-	read_unlock(&__ip_vs_svc_lock);
-
-	IP_VS_DBG_BUF(9, "lookup service: fwm %u %s %s:%u %s\n",
-		      fwmark, ip_vs_proto_name(protocol),
-		      IP_VS_DBG_ADDR(af, vaddr), ntohs(vport),
-		      svc ? "hit" : "not hit");
-
-	return svc;
-}
-
-
-static inline void
-__ip_vs_bind_svc(struct ip_vs_dest *dest, struct ip_vs_service *svc)
-{
-	atomic_inc(&svc->refcnt);
-	dest->svc = svc;
-}
-
-static inline void
-__ip_vs_unbind_svc(struct ip_vs_dest *dest)
-{
-	struct ip_vs_service *svc = dest->svc;
-
-	dest->svc = NULL;
-	if (atomic_dec_and_test(&svc->refcnt))
-		kfree(svc);
-}
-
-
-/*
- *	Returns hash value for real service
- */
-static inline unsigned ip_vs_rs_hashkey(int af,
-					    const union nf_inet_addr *addr,
-					    __be16 port)
-{
-	register unsigned porth = ntohs(port);
-	__be32 addr_fold = addr->ip;
-
-#ifdef CONFIG_IP_VS_IPV6
-	if (af == AF_INET6)
-		addr_fold = addr->ip6[0]^addr->ip6[1]^
-			    addr->ip6[2]^addr->ip6[3];
-#endif
-
-	return (ntohl(addr_fold)^(porth>>IP_VS_RTAB_BITS)^porth)
-		& IP_VS_RTAB_MASK;
-}
-
-/*
- *	Hashes ip_vs_dest in ip_vs_rtable by <proto,addr,port>.
- *	should be called with locked tables.
- */
-static int ip_vs_rs_hash(struct ip_vs_dest *dest)
-{
-	unsigned hash;
-
-	if (!list_empty(&dest->d_list)) {
-		return 0;
-	}
-
-	/*
-	 *	Hash by proto,addr,port,
-	 *	which are the parameters of the real service.
-	 */
-	hash = ip_vs_rs_hashkey(dest->af, &dest->addr, dest->port);
-
-	list_add(&dest->d_list, &ip_vs_rtable[hash]);
-
-	return 1;
-}
-
-/*
- *	UNhashes ip_vs_dest from ip_vs_rtable.
- *	should be called with locked tables.
- */
-static int ip_vs_rs_unhash(struct ip_vs_dest *dest)
-{
-	/*
-	 * Remove it from the ip_vs_rtable table.
-	 */
-	if (!list_empty(&dest->d_list)) {
-		list_del(&dest->d_list);
-		INIT_LIST_HEAD(&dest->d_list);
-	}
-
-	return 1;
-}
-
-/*
- *	Lookup real service by <proto,addr,port> in the real service table.
- */
-struct ip_vs_dest *
-ip_vs_lookup_real_service(int af, __u16 protocol,
-			  const union nf_inet_addr *daddr,
-			  __be16 dport)
-{
-	unsigned hash;
-	struct ip_vs_dest *dest;
-
-	/*
-	 *	Check for "full" addressed entries
-	 *	Return the first found entry
-	 */
-	hash = ip_vs_rs_hashkey(af, daddr, dport);
-
-	read_lock(&__ip_vs_rs_lock);
-	list_for_each_entry(dest, &ip_vs_rtable[hash], d_list) {
-		if ((dest->af == af)
-		    && ip_vs_addr_equal(af, &dest->addr, daddr)
-		    && (dest->port == dport)
-		    && ((dest->protocol == protocol) ||
-			dest->vfwmark)) {
-			/* HIT */
-			read_unlock(&__ip_vs_rs_lock);
-			return dest;
-		}
-	}
-	read_unlock(&__ip_vs_rs_lock);
-
-	return NULL;
-}
-
-/*
- *	Lookup destination by {addr,port} in the given service
- */
-static struct ip_vs_dest *
-ip_vs_lookup_dest(struct ip_vs_service *svc, const union nf_inet_addr *daddr,
-		  __be16 dport)
-{
-	struct ip_vs_dest *dest;
-
-	/*
-	 * Find the destination for the given service
-	 */
-	list_for_each_entry(dest, &svc->destinations, n_list) {
-		if ((dest->af == svc->af)
-		    && ip_vs_addr_equal(svc->af, &dest->addr, daddr)
-		    && (dest->port == dport)) {
-			/* HIT */
-			return dest;
-		}
-	}
-
-	return NULL;
-}
-
-/*
- * Find destination by {daddr,dport,vaddr,protocol}
- * Cretaed to be used in ip_vs_process_message() in
- * the backup synchronization daemon. It finds the
- * destination to be bound to the received connection
- * on the backup.
- *
- * ip_vs_lookup_real_service() looked promissing, but
- * seems not working as expected.
- */
-struct ip_vs_dest *ip_vs_find_dest(int af, const union nf_inet_addr *daddr,
-				   __be16 dport,
-				   const union nf_inet_addr *vaddr,
-				   __be16 vport, __u16 protocol)
-{
-	struct ip_vs_dest *dest;
-	struct ip_vs_service *svc;
-
-	svc = ip_vs_service_get(af, 0, protocol, vaddr, vport);
-	if (!svc)
-		return NULL;
-	dest = ip_vs_lookup_dest(svc, daddr, dport);
-	if (dest)
-		atomic_inc(&dest->refcnt);
-	ip_vs_service_put(svc);
-	return dest;
-}
-
-/*
- *  Lookup dest by {svc,addr,port} in the destination trash.
- *  The destination trash is used to hold the destinations that are removed
- *  from the service table but are still referenced by some conn entries.
- *  The reason to add the destination trash is when the dest is temporary
- *  down (either by administrator or by monitor program), the dest can be
- *  picked back from the trash, the remaining connections to the dest can
- *  continue, and the counting information of the dest is also useful for
- *  scheduling.
- */
-static struct ip_vs_dest *
-ip_vs_trash_get_dest(struct ip_vs_service *svc, const union nf_inet_addr *daddr,
-		     __be16 dport)
-{
-	struct ip_vs_dest *dest, *nxt;
-
-	/*
-	 * Find the destination in trash
-	 */
-	list_for_each_entry_safe(dest, nxt, &ip_vs_dest_trash, n_list) {
-		IP_VS_DBG_BUF(3, "Destination %u/%s:%u still in trash, "
-			      "dest->refcnt=%d\n",
-			      dest->vfwmark,
-			      IP_VS_DBG_ADDR(svc->af, &dest->addr),
-			      ntohs(dest->port),
-			      atomic_read(&dest->refcnt));
-		if (dest->af == svc->af &&
-		    ip_vs_addr_equal(svc->af, &dest->addr, daddr) &&
-		    dest->port == dport &&
-		    dest->vfwmark == svc->fwmark &&
-		    dest->protocol == svc->protocol &&
-		    (svc->fwmark ||
-		     (ip_vs_addr_equal(svc->af, &dest->vaddr, &svc->addr) &&
-		      dest->vport == svc->port))) {
-			/* HIT */
-			return dest;
-		}
-
-		/*
-		 * Try to purge the destination from trash if not referenced
-		 */
-		if (atomic_read(&dest->refcnt) == 1) {
-			IP_VS_DBG_BUF(3, "Removing destination %u/%s:%u "
-				      "from trash\n",
-				      dest->vfwmark,
-				      IP_VS_DBG_ADDR(svc->af, &dest->addr),
-				      ntohs(dest->port));
-			list_del(&dest->n_list);
-			ip_vs_dst_reset(dest);
-			__ip_vs_unbind_svc(dest);
-			kfree(dest);
-		}
-	}
-
-	return NULL;
-}
-
-
-/*
- *  Clean up all the destinations in the trash
- *  Called by the ip_vs_control_cleanup()
- *
- *  When the ip_vs_control_clearup is activated by ipvs module exit,
- *  the service tables must have been flushed and all the connections
- *  are expired, and the refcnt of each destination in the trash must
- *  be 1, so we simply release them here.
- */
-static void ip_vs_trash_cleanup(void)
-{
-	struct ip_vs_dest *dest, *nxt;
-
-	list_for_each_entry_safe(dest, nxt, &ip_vs_dest_trash, n_list) {
-		list_del(&dest->n_list);
-		ip_vs_dst_reset(dest);
-		__ip_vs_unbind_svc(dest);
-		kfree(dest);
-	}
-}
-
-
-static void
-ip_vs_zero_stats(struct ip_vs_stats *stats)
-{
-	spin_lock_bh(&stats->lock);
-
-	memset(&stats->ustats, 0, sizeof(stats->ustats));
-	ip_vs_zero_estimator(stats);
-
-	spin_unlock_bh(&stats->lock);
-}
-
-/*
- *	Update a destination in the given service
- */
-static void
-__ip_vs_update_dest(struct ip_vs_service *svc,
-		    struct ip_vs_dest *dest, struct ip_vs_dest_user_kern *udest)
-{
-	int conn_flags;
-
-	/* set the weight and the flags */
-	atomic_set(&dest->weight, udest->weight);
-	conn_flags = udest->conn_flags | IP_VS_CONN_F_INACTIVE;
-
-	/* check if local node and update the flags */
-#ifdef CONFIG_IP_VS_IPV6
-	if (svc->af == AF_INET6) {
-		if (__ip_vs_addr_is_local_v6(&udest->addr.in6)) {
-			conn_flags = (conn_flags & ~IP_VS_CONN_F_FWD_MASK)
-				| IP_VS_CONN_F_LOCALNODE;
-		}
-	} else
-#endif
-		if (inet_addr_type(&init_net, udest->addr.ip) == RTN_LOCAL) {
-			conn_flags = (conn_flags & ~IP_VS_CONN_F_FWD_MASK)
-				| IP_VS_CONN_F_LOCALNODE;
-		}
-
-	/* set the IP_VS_CONN_F_NOOUTPUT flag if not masquerading/NAT */
-	if ((conn_flags & IP_VS_CONN_F_FWD_MASK) != 0) {
-		conn_flags |= IP_VS_CONN_F_NOOUTPUT;
-	} else {
-		/*
-		 *    Put the real service in ip_vs_rtable if not present.
-		 *    For now only for NAT!
-		 */
-		write_lock_bh(&__ip_vs_rs_lock);
-		ip_vs_rs_hash(dest);
-		write_unlock_bh(&__ip_vs_rs_lock);
-	}
-	atomic_set(&dest->conn_flags, conn_flags);
-
-	/* bind the service */
-	if (!dest->svc) {
-		__ip_vs_bind_svc(dest, svc);
-	} else {
-		if (dest->svc != svc) {
-			__ip_vs_unbind_svc(dest);
-			ip_vs_zero_stats(&dest->stats);
-			__ip_vs_bind_svc(dest, svc);
-		}
-	}
-
-	/* set the dest status flags */
-	dest->flags |= IP_VS_DEST_F_AVAILABLE;
-
-	if (udest->u_threshold == 0 || udest->u_threshold > dest->u_threshold)
-		dest->flags &= ~IP_VS_DEST_F_OVERLOAD;
-	dest->u_threshold = udest->u_threshold;
-	dest->l_threshold = udest->l_threshold;
-}
-
-
-/*
- *	Create a destination for the given service
- */
-static int
-ip_vs_new_dest(struct ip_vs_service *svc, struct ip_vs_dest_user_kern *udest,
-	       struct ip_vs_dest **dest_p)
-{
-	struct ip_vs_dest *dest;
-	unsigned atype;
-
-	EnterFunction(2);
-
-#ifdef CONFIG_IP_VS_IPV6
-	if (svc->af == AF_INET6) {
-		atype = ipv6_addr_type(&udest->addr.in6);
-		if ((!(atype & IPV6_ADDR_UNICAST) ||
-			atype & IPV6_ADDR_LINKLOCAL) &&
-			!__ip_vs_addr_is_local_v6(&udest->addr.in6))
-			return -EINVAL;
-	} else
-#endif
-	{
-		atype = inet_addr_type(&init_net, udest->addr.ip);
-		if (atype != RTN_LOCAL && atype != RTN_UNICAST)
-			return -EINVAL;
-	}
-
-	dest = kzalloc(sizeof(struct ip_vs_dest), GFP_ATOMIC);
-	if (dest == NULL) {
-		IP_VS_ERR("ip_vs_new_dest: kmalloc failed.\n");
-		return -ENOMEM;
-	}
-
-	dest->af = svc->af;
-	dest->protocol = svc->protocol;
-	dest->vaddr = svc->addr;
-	dest->vport = svc->port;
-	dest->vfwmark = svc->fwmark;
-	ip_vs_addr_copy(svc->af, &dest->addr, &udest->addr);
-	dest->port = udest->port;
-
-	atomic_set(&dest->activeconns, 0);
-	atomic_set(&dest->inactconns, 0);
-	atomic_set(&dest->persistconns, 0);
-	atomic_set(&dest->refcnt, 0);
-
-	INIT_LIST_HEAD(&dest->d_list);
-	spin_lock_init(&dest->dst_lock);
-	spin_lock_init(&dest->stats.lock);
-	__ip_vs_update_dest(svc, dest, udest);
-	ip_vs_new_estimator(&dest->stats);
-
-	*dest_p = dest;
-
-	LeaveFunction(2);
-	return 0;
-}
-
-
-/*
- *	Add a destination into an existing service
- */
-static int
-ip_vs_add_dest(struct ip_vs_service *svc, struct ip_vs_dest_user_kern *udest)
-{
-	struct ip_vs_dest *dest;
-	union nf_inet_addr daddr;
-	__be16 dport = udest->port;
-	int ret;
-
-	EnterFunction(2);
-
-	if (udest->weight < 0) {
-		IP_VS_ERR("ip_vs_add_dest(): server weight less than zero\n");
-		return -ERANGE;
-	}
-
-	if (udest->l_threshold > udest->u_threshold) {
-		IP_VS_ERR("ip_vs_add_dest(): lower threshold is higher than "
-			  "upper threshold\n");
-		return -ERANGE;
-	}
-
-	ip_vs_addr_copy(svc->af, &daddr, &udest->addr);
-
-	/*
-	 * Check if the dest already exists in the list
-	 */
-	dest = ip_vs_lookup_dest(svc, &daddr, dport);
-
-	if (dest != NULL) {
-		IP_VS_DBG(1, "ip_vs_add_dest(): dest already exists\n");
-		return -EEXIST;
-	}
-
-	/*
-	 * Check if the dest already exists in the trash and
-	 * is from the same service
-	 */
-	dest = ip_vs_trash_get_dest(svc, &daddr, dport);
-
-	if (dest != NULL) {
-		IP_VS_DBG_BUF(3, "Get destination %s:%u from trash, "
-			      "dest->refcnt=%d, service %u/%s:%u\n",
-			      IP_VS_DBG_ADDR(svc->af, &daddr), ntohs(dport),
-			      atomic_read(&dest->refcnt),
-			      dest->vfwmark,
-			      IP_VS_DBG_ADDR(svc->af, &dest->vaddr),
-			      ntohs(dest->vport));
-
-		__ip_vs_update_dest(svc, dest, udest);
-
-		/*
-		 * Get the destination from the trash
-		 */
-		list_del(&dest->n_list);
-
-		ip_vs_new_estimator(&dest->stats);
-
-		write_lock_bh(&__ip_vs_svc_lock);
-
-		/*
-		 * Wait until all other svc users go away.
-		 */
-		IP_VS_WAIT_WHILE(atomic_read(&svc->usecnt) > 1);
-
-		list_add(&dest->n_list, &svc->destinations);
-		svc->num_dests++;
-
-		/* call the update_service function of its scheduler */
-		if (svc->scheduler->update_service)
-			svc->scheduler->update_service(svc);
-
-		write_unlock_bh(&__ip_vs_svc_lock);
-		return 0;
-	}
-
-	/*
-	 * Allocate and initialize the dest structure
-	 */
-	ret = ip_vs_new_dest(svc, udest, &dest);
-	if (ret) {
-		return ret;
-	}
-
-	/*
-	 * Add the dest entry into the list
-	 */
-	atomic_inc(&dest->refcnt);
-
-	write_lock_bh(&__ip_vs_svc_lock);
-
-	/*
-	 * Wait until all other svc users go away.
-	 */
-	IP_VS_WAIT_WHILE(atomic_read(&svc->usecnt) > 1);
-
-	list_add(&dest->n_list, &svc->destinations);
-	svc->num_dests++;
-
-	/* call the update_service function of its scheduler */
-	if (svc->scheduler->update_service)
-		svc->scheduler->update_service(svc);
-
-	write_unlock_bh(&__ip_vs_svc_lock);
-
-	LeaveFunction(2);
-
-	return 0;
-}
-
-
-/*
- *	Edit a destination in the given service
- */
-static int
-ip_vs_edit_dest(struct ip_vs_service *svc, struct ip_vs_dest_user_kern *udest)
-{
-	struct ip_vs_dest *dest;
-	union nf_inet_addr daddr;
-	__be16 dport = udest->port;
-
-	EnterFunction(2);
-
-	if (udest->weight < 0) {
-		IP_VS_ERR("ip_vs_edit_dest(): server weight less than zero\n");
-		return -ERANGE;
-	}
-
-	if (udest->l_threshold > udest->u_threshold) {
-		IP_VS_ERR("ip_vs_edit_dest(): lower threshold is higher than "
-			  "upper threshold\n");
-		return -ERANGE;
-	}
-
-	ip_vs_addr_copy(svc->af, &daddr, &udest->addr);
-
-	/*
-	 *  Lookup the destination list
-	 */
-	dest = ip_vs_lookup_dest(svc, &daddr, dport);
-
-	if (dest == NULL) {
-		IP_VS_DBG(1, "ip_vs_edit_dest(): dest doesn't exist\n");
-		return -ENOENT;
-	}
-
-	__ip_vs_update_dest(svc, dest, udest);
-
-	write_lock_bh(&__ip_vs_svc_lock);
-
-	/* Wait until all other svc users go away */
-	IP_VS_WAIT_WHILE(atomic_read(&svc->usecnt) > 1);
-
-	/* call the update_service, because server weight may be changed */
-	if (svc->scheduler->update_service)
-		svc->scheduler->update_service(svc);
-
-	write_unlock_bh(&__ip_vs_svc_lock);
-
-	LeaveFunction(2);
-
-	return 0;
-}
-
-
-/*
- *	Delete a destination (must be already unlinked from the service)
- */
-static void __ip_vs_del_dest(struct ip_vs_dest *dest)
-{
-	ip_vs_kill_estimator(&dest->stats);
-
-	/*
-	 *  Remove it from the d-linked list with the real services.
-	 */
-	write_lock_bh(&__ip_vs_rs_lock);
-	ip_vs_rs_unhash(dest);
-	write_unlock_bh(&__ip_vs_rs_lock);
-
-	/*
-	 *  Decrease the refcnt of the dest, and free the dest
-	 *  if nobody refers to it (refcnt=0). Otherwise, throw
-	 *  the destination into the trash.
-	 */
-	if (atomic_dec_and_test(&dest->refcnt)) {
-		ip_vs_dst_reset(dest);
-		/* simply decrease svc->refcnt here, let the caller check
-		   and release the service if nobody refers to it.
-		   Only user context can release destination and service,
-		   and only one user context can update virtual service at a
-		   time, so the operation here is OK */
-		atomic_dec(&dest->svc->refcnt);
-		kfree(dest);
-	} else {
-		IP_VS_DBG_BUF(3, "Moving dest %s:%u into trash, "
-			      "dest->refcnt=%d\n",
-			      IP_VS_DBG_ADDR(dest->af, &dest->addr),
-			      ntohs(dest->port),
-			      atomic_read(&dest->refcnt));
-		list_add(&dest->n_list, &ip_vs_dest_trash);
-		atomic_inc(&dest->refcnt);
-	}
-}
-
-
-/*
- *	Unlink a destination from the given service
- */
-static void __ip_vs_unlink_dest(struct ip_vs_service *svc,
-				struct ip_vs_dest *dest,
-				int svcupd)
-{
-	dest->flags &= ~IP_VS_DEST_F_AVAILABLE;
-
-	/*
-	 *  Remove it from the d-linked destination list.
-	 */
-	list_del(&dest->n_list);
-	svc->num_dests--;
-
-	/*
-	 *  Call the update_service function of its scheduler
-	 */
-	if (svcupd && svc->scheduler->update_service)
-			svc->scheduler->update_service(svc);
-}
-
-
-/*
- *	Delete a destination server in the given service
- */
-static int
-ip_vs_del_dest(struct ip_vs_service *svc, struct ip_vs_dest_user_kern *udest)
-{
-	struct ip_vs_dest *dest;
-	__be16 dport = udest->port;
-
-	EnterFunction(2);
-
-	dest = ip_vs_lookup_dest(svc, &udest->addr, dport);
-
-	if (dest == NULL) {
-		IP_VS_DBG(1, "ip_vs_del_dest(): destination not found!\n");
-		return -ENOENT;
-	}
-
-	write_lock_bh(&__ip_vs_svc_lock);
-
-	/*
-	 *	Wait until all other svc users go away.
-	 */
-	IP_VS_WAIT_WHILE(atomic_read(&svc->usecnt) > 1);
-
-	/*
-	 *	Unlink dest from the service
-	 */
-	__ip_vs_unlink_dest(svc, dest, 1);
-
-	write_unlock_bh(&__ip_vs_svc_lock);
-
-	/*
-	 *	Delete the destination
-	 */
-	__ip_vs_del_dest(dest);
-
-	LeaveFunction(2);
-
-	return 0;
-}
-
-
-/*
- *	Add a service into the service hash table
- */
-static int
-ip_vs_add_service(struct ip_vs_service_user_kern *u,
-		  struct ip_vs_service **svc_p)
-{
-	int ret = 0;
-	struct ip_vs_scheduler *sched = NULL;
-	struct ip_vs_service *svc = NULL;
-
-	/* increase the module use count */
-	ip_vs_use_count_inc();
-
-	/* Lookup the scheduler by 'u->sched_name' */
-	sched = ip_vs_scheduler_get(u->sched_name);
-	if (sched == NULL) {
-		IP_VS_INFO("Scheduler module ip_vs_%s not found\n",
-			   u->sched_name);
-		ret = -ENOENT;
-		goto out_mod_dec;
-	}
-
-#ifdef CONFIG_IP_VS_IPV6
-	if (u->af == AF_INET6) {
-		if (!sched->supports_ipv6) {
-			ret = -EAFNOSUPPORT;
-			goto out_err;
-		}
-		if ((u->netmask < 1) || (u->netmask > 128)) {
-			ret = -EINVAL;
-			goto out_err;
-		}
-	}
-#endif
-
-	svc = kzalloc(sizeof(struct ip_vs_service), GFP_ATOMIC);
-	if (svc == NULL) {
-		IP_VS_DBG(1, "ip_vs_add_service: kmalloc failed.\n");
-		ret = -ENOMEM;
-		goto out_err;
-	}
-
-	/* I'm the first user of the service */
-	atomic_set(&svc->usecnt, 1);
-	atomic_set(&svc->refcnt, 0);
-
-	svc->af = u->af;
-	svc->protocol = u->protocol;
-	ip_vs_addr_copy(svc->af, &svc->addr, &u->addr);
-	svc->port = u->port;
-	svc->fwmark = u->fwmark;
-	svc->flags = u->flags;
-	svc->timeout = u->timeout * HZ;
-	svc->netmask = u->netmask;
-
-	INIT_LIST_HEAD(&svc->destinations);
-	rwlock_init(&svc->sched_lock);
-	spin_lock_init(&svc->stats.lock);
-
-	/* Bind the scheduler */
-	ret = ip_vs_bind_scheduler(svc, sched);
-	if (ret)
-		goto out_err;
-	sched = NULL;
-
-	/* Update the virtual service counters */
-	if (svc->port == FTPPORT)
-		atomic_inc(&ip_vs_ftpsvc_counter);
-	else if (svc->port == 0)
-		atomic_inc(&ip_vs_nullsvc_counter);
-
-	ip_vs_new_estimator(&svc->stats);
-
-	/* Count only IPv4 services for old get/setsockopt interface */
-	if (svc->af == AF_INET)
-		ip_vs_num_services++;
-
-	/* Hash the service into the service table */
-	write_lock_bh(&__ip_vs_svc_lock);
-	ip_vs_svc_hash(svc);
-	write_unlock_bh(&__ip_vs_svc_lock);
-
-	*svc_p = svc;
-	return 0;
-
-  out_err:
-	if (svc != NULL) {
-		if (svc->scheduler)
-			ip_vs_unbind_scheduler(svc);
-		if (svc->inc) {
-			local_bh_disable();
-			ip_vs_app_inc_put(svc->inc);
-			local_bh_enable();
-		}
-		kfree(svc);
-	}
-	ip_vs_scheduler_put(sched);
-
-  out_mod_dec:
-	/* decrease the module use count */
-	ip_vs_use_count_dec();
-
-	return ret;
-}
-
-
-/*
- *	Edit a service and bind it with a new scheduler
- */
-static int
-ip_vs_edit_service(struct ip_vs_service *svc, struct ip_vs_service_user_kern *u)
-{
-	struct ip_vs_scheduler *sched, *old_sched;
-	int ret = 0;
-
-	/*
-	 * Lookup the scheduler, by 'u->sched_name'
-	 */
-	sched = ip_vs_scheduler_get(u->sched_name);
-	if (sched == NULL) {
-		IP_VS_INFO("Scheduler module ip_vs_%s not found\n",
-			   u->sched_name);
-		return -ENOENT;
-	}
-	old_sched = sched;
-
-#ifdef CONFIG_IP_VS_IPV6
-	if (u->af == AF_INET6) {
-		if (!sched->supports_ipv6) {
-			ret = -EAFNOSUPPORT;
-			goto out;
-		}
-		if ((u->netmask < 1) || (u->netmask > 128)) {
-			ret = -EINVAL;
-			goto out;
-		}
-	}
-#endif
-
-	write_lock_bh(&__ip_vs_svc_lock);
-
-	/*
-	 * Wait until all other svc users go away.
-	 */
-	IP_VS_WAIT_WHILE(atomic_read(&svc->usecnt) > 1);
-
-	/*
-	 * Set the flags and timeout value
-	 */
-	svc->flags = u->flags | IP_VS_SVC_F_HASHED;
-	svc->timeout = u->timeout * HZ;
-	svc->netmask = u->netmask;
-
-	old_sched = svc->scheduler;
-	if (sched != old_sched) {
-		/*
-		 * Unbind the old scheduler
-		 */
-		if ((ret = ip_vs_unbind_scheduler(svc))) {
-			old_sched = sched;
-			goto out_unlock;
-		}
-
-		/*
-		 * Bind the new scheduler
-		 */
-		if ((ret = ip_vs_bind_scheduler(svc, sched))) {
-			/*
-			 * If ip_vs_bind_scheduler fails, restore the old
-			 * scheduler.
-			 * The main reason of failure is out of memory.
-			 *
-			 * The question is if the old scheduler can be
-			 * restored all the time. TODO: if it cannot be
-			 * restored some time, we must delete the service,
-			 * otherwise the system may crash.
-			 */
-			ip_vs_bind_scheduler(svc, old_sched);
-			old_sched = sched;
-			goto out_unlock;
-		}
-	}
-
-  out_unlock:
-	write_unlock_bh(&__ip_vs_svc_lock);
-#ifdef CONFIG_IP_VS_IPV6
-  out:
-#endif
-
-	if (old_sched)
-		ip_vs_scheduler_put(old_sched);
-
-	return ret;
-}
-
-
-/*
- *	Delete a service from the service list
- *	- The service must be unlinked, unlocked and not referenced!
- *	- We are called under _bh lock
- */
-static void __ip_vs_del_service(struct ip_vs_service *svc)
-{
-	struct ip_vs_dest *dest, *nxt;
-	struct ip_vs_scheduler *old_sched;
-
-	/* Count only IPv4 services for old get/setsockopt interface */
-	if (svc->af == AF_INET)
-		ip_vs_num_services--;
-
-	ip_vs_kill_estimator(&svc->stats);
-
-	/* Unbind scheduler */
-	old_sched = svc->scheduler;
-	ip_vs_unbind_scheduler(svc);
-	if (old_sched)
-		ip_vs_scheduler_put(old_sched);
-
-	/* Unbind app inc */
-	if (svc->inc) {
-		ip_vs_app_inc_put(svc->inc);
-		svc->inc = NULL;
-	}
-
-	/*
-	 *    Unlink the whole destination list
-	 */
-	list_for_each_entry_safe(dest, nxt, &svc->destinations, n_list) {
-		__ip_vs_unlink_dest(svc, dest, 0);
-		__ip_vs_del_dest(dest);
-	}
-
-	/*
-	 *    Update the virtual service counters
-	 */
-	if (svc->port == FTPPORT)
-		atomic_dec(&ip_vs_ftpsvc_counter);
-	else if (svc->port == 0)
-		atomic_dec(&ip_vs_nullsvc_counter);
-
-	/*
-	 *    Free the service if nobody refers to it
-	 */
-	if (atomic_read(&svc->refcnt) == 0)
-		kfree(svc);
-
-	/* decrease the module use count */
-	ip_vs_use_count_dec();
-}
-
-/*
- *	Delete a service from the service list
- */
-static int ip_vs_del_service(struct ip_vs_service *svc)
-{
-	if (svc == NULL)
-		return -EEXIST;
-
-	/*
-	 * Unhash it from the service table
-	 */
-	write_lock_bh(&__ip_vs_svc_lock);
-
-	ip_vs_svc_unhash(svc);
-
-	/*
-	 * Wait until all the svc users go away.
-	 */
-	IP_VS_WAIT_WHILE(atomic_read(&svc->usecnt) > 1);
-
-	__ip_vs_del_service(svc);
-
-	write_unlock_bh(&__ip_vs_svc_lock);
-
-	return 0;
-}
-
-
-/*
- *	Flush all the virtual services
- */
-static int ip_vs_flush(void)
-{
-	int idx;
-	struct ip_vs_service *svc, *nxt;
-
-	/*
-	 * Flush the service table hashed by <protocol,addr,port>
-	 */
-	for(idx = 0; idx < IP_VS_SVC_TAB_SIZE; idx++) {
-		list_for_each_entry_safe(svc, nxt, &ip_vs_svc_table[idx], s_list) {
-			write_lock_bh(&__ip_vs_svc_lock);
-			ip_vs_svc_unhash(svc);
-			/*
-			 * Wait until all the svc users go away.
-			 */
-			IP_VS_WAIT_WHILE(atomic_read(&svc->usecnt) > 0);
-			__ip_vs_del_service(svc);
-			write_unlock_bh(&__ip_vs_svc_lock);
-		}
-	}
-
-	/*
-	 * Flush the service table hashed by fwmark
-	 */
-	for(idx = 0; idx < IP_VS_SVC_TAB_SIZE; idx++) {
-		list_for_each_entry_safe(svc, nxt,
-					 &ip_vs_svc_fwm_table[idx], f_list) {
-			write_lock_bh(&__ip_vs_svc_lock);
-			ip_vs_svc_unhash(svc);
-			/*
-			 * Wait until all the svc users go away.
-			 */
-			IP_VS_WAIT_WHILE(atomic_read(&svc->usecnt) > 0);
-			__ip_vs_del_service(svc);
-			write_unlock_bh(&__ip_vs_svc_lock);
-		}
-	}
-
-	return 0;
-}
-
-
-/*
- *	Zero counters in a service or all services
- */
-static int ip_vs_zero_service(struct ip_vs_service *svc)
-{
-	struct ip_vs_dest *dest;
-
-	write_lock_bh(&__ip_vs_svc_lock);
-	list_for_each_entry(dest, &svc->destinations, n_list) {
-		ip_vs_zero_stats(&dest->stats);
-	}
-	ip_vs_zero_stats(&svc->stats);
-	write_unlock_bh(&__ip_vs_svc_lock);
-	return 0;
-}
-
-static int ip_vs_zero_all(void)
-{
-	int idx;
-	struct ip_vs_service *svc;
-
-	for(idx = 0; idx < IP_VS_SVC_TAB_SIZE; idx++) {
-		list_for_each_entry(svc, &ip_vs_svc_table[idx], s_list) {
-			ip_vs_zero_service(svc);
-		}
-	}
-
-	for(idx = 0; idx < IP_VS_SVC_TAB_SIZE; idx++) {
-		list_for_each_entry(svc, &ip_vs_svc_fwm_table[idx], f_list) {
-			ip_vs_zero_service(svc);
-		}
-	}
-
-	ip_vs_zero_stats(&ip_vs_stats);
-	return 0;
-}
-
-
-static int
-proc_do_defense_mode(ctl_table *table, int write, struct file * filp,
-		     void __user *buffer, size_t *lenp, loff_t *ppos)
-{
-	int *valp = table->data;
-	int val = *valp;
-	int rc;
-
-	rc = proc_dointvec(table, write, filp, buffer, lenp, ppos);
-	if (write && (*valp != val)) {
-		if ((*valp < 0) || (*valp > 3)) {
-			/* Restore the correct value */
-			*valp = val;
-		} else {
-			update_defense_level();
-		}
-	}
-	return rc;
-}
-
-
-static int
-proc_do_sync_threshold(ctl_table *table, int write, struct file *filp,
-		       void __user *buffer, size_t *lenp, loff_t *ppos)
-{
-	int *valp = table->data;
-	int val[2];
-	int rc;
-
-	/* backup the value first */
-	memcpy(val, valp, sizeof(val));
-
-	rc = proc_dointvec(table, write, filp, buffer, lenp, ppos);
-	if (write && (valp[0] < 0 || valp[1] < 0 || valp[0] >= valp[1])) {
-		/* Restore the correct value */
-		memcpy(valp, val, sizeof(val));
-	}
-	return rc;
-}
-
-
-/*
- *	IPVS sysctl table (under the /proc/sys/net/ipv4/vs/)
- */
-
-static struct ctl_table vs_vars[] = {
-	{
-		.procname	= "amemthresh",
-		.data		= &sysctl_ip_vs_amemthresh,
-		.maxlen		= sizeof(int),
-		.mode		= 0644,
-		.proc_handler	= &proc_dointvec,
-	},
-#ifdef CONFIG_IP_VS_DEBUG
-	{
-		.procname	= "debug_level",
-		.data		= &sysctl_ip_vs_debug_level,
-		.maxlen		= sizeof(int),
-		.mode		= 0644,
-		.proc_handler	= &proc_dointvec,
-	},
-#endif
-	{
-		.procname	= "am_droprate",
-		.data		= &sysctl_ip_vs_am_droprate,
-		.maxlen		= sizeof(int),
-		.mode		= 0644,
-		.proc_handler	= &proc_dointvec,
-	},
-	{
-		.procname	= "drop_entry",
-		.data		= &sysctl_ip_vs_drop_entry,
-		.maxlen		= sizeof(int),
-		.mode		= 0644,
-		.proc_handler	= &proc_do_defense_mode,
-	},
-	{
-		.procname	= "drop_packet",
-		.data		= &sysctl_ip_vs_drop_packet,
-		.maxlen		= sizeof(int),
-		.mode		= 0644,
-		.proc_handler	= &proc_do_defense_mode,
-	},
-	{
-		.procname	= "secure_tcp",
-		.data		= &sysctl_ip_vs_secure_tcp,
-		.maxlen		= sizeof(int),
-		.mode		= 0644,
-		.proc_handler	= &proc_do_defense_mode,
-	},
-#if 0
-	{
-		.procname	= "timeout_established",
-		.data	= &vs_timeout_table_dos.timeout[IP_VS_S_ESTABLISHED],
-		.maxlen		= sizeof(int),
-		.mode		= 0644,
-		.proc_handler	= &proc_dointvec_jiffies,
-	},
-	{
-		.procname	= "timeout_synsent",
-		.data	= &vs_timeout_table_dos.timeout[IP_VS_S_SYN_SENT],
-		.maxlen		= sizeof(int),
-		.mode		= 0644,
-		.proc_handler	= &proc_dointvec_jiffies,
-	},
-	{
-		.procname	= "timeout_synrecv",
-		.data	= &vs_timeout_table_dos.timeout[IP_VS_S_SYN_RECV],
-		.maxlen		= sizeof(int),
-		.mode		= 0644,
-		.proc_handler	= &proc_dointvec_jiffies,
-	},
-	{
-		.procname	= "timeout_finwait",
-		.data	= &vs_timeout_table_dos.timeout[IP_VS_S_FIN_WAIT],
-		.maxlen		= sizeof(int),
-		.mode		= 0644,
-		.proc_handler	= &proc_dointvec_jiffies,
-	},
-	{
-		.procname	= "timeout_timewait",
-		.data	= &vs_timeout_table_dos.timeout[IP_VS_S_TIME_WAIT],
-		.maxlen		= sizeof(int),
-		.mode		= 0644,
-		.proc_handler	= &proc_dointvec_jiffies,
-	},
-	{
-		.procname	= "timeout_close",
-		.data	= &vs_timeout_table_dos.timeout[IP_VS_S_CLOSE],
-		.maxlen		= sizeof(int),
-		.mode		= 0644,
-		.proc_handler	= &proc_dointvec_jiffies,
-	},
-	{
-		.procname	= "timeout_closewait",
-		.data	= &vs_timeout_table_dos.timeout[IP_VS_S_CLOSE_WAIT],
-		.maxlen		= sizeof(int),
-		.mode		= 0644,
-		.proc_handler	= &proc_dointvec_jiffies,
-	},
-	{
-		.procname	= "timeout_lastack",
-		.data	= &vs_timeout_table_dos.timeout[IP_VS_S_LAST_ACK],
-		.maxlen		= sizeof(int),
-		.mode		= 0644,
-		.proc_handler	= &proc_dointvec_jiffies,
-	},
-	{
-		.procname	= "timeout_listen",
-		.data	= &vs_timeout_table_dos.timeout[IP_VS_S_LISTEN],
-		.maxlen		= sizeof(int),
-		.mode		= 0644,
-		.proc_handler	= &proc_dointvec_jiffies,
-	},
-	{
-		.procname	= "timeout_synack",
-		.data	= &vs_timeout_table_dos.timeout[IP_VS_S_SYNACK],
-		.maxlen		= sizeof(int),
-		.mode		= 0644,
-		.proc_handler	= &proc_dointvec_jiffies,
-	},
-	{
-		.procname	= "timeout_udp",
-		.data	= &vs_timeout_table_dos.timeout[IP_VS_S_UDP],
-		.maxlen		= sizeof(int),
-		.mode		= 0644,
-		.proc_handler	= &proc_dointvec_jiffies,
-	},
-	{
-		.procname	= "timeout_icmp",
-		.data	= &vs_timeout_table_dos.timeout[IP_VS_S_ICMP],
-		.maxlen		= sizeof(int),
-		.mode		= 0644,
-		.proc_handler	= &proc_dointvec_jiffies,
-	},
-#endif
-	{
-		.procname	= "cache_bypass",
-		.data		= &sysctl_ip_vs_cache_bypass,
-		.maxlen		= sizeof(int),
-		.mode		= 0644,
-		.proc_handler	= &proc_dointvec,
-	},
-	{
-		.procname	= "expire_nodest_conn",
-		.data		= &sysctl_ip_vs_expire_nodest_conn,
-		.maxlen		= sizeof(int),
-		.mode		= 0644,
-		.proc_handler	= &proc_dointvec,
-	},
-	{
-		.procname	= "expire_quiescent_template",
-		.data		= &sysctl_ip_vs_expire_quiescent_template,
-		.maxlen		= sizeof(int),
-		.mode		= 0644,
-		.proc_handler	= &proc_dointvec,
-	},
-	{
-		.procname	= "sync_threshold",
-		.data		= &sysctl_ip_vs_sync_threshold,
-		.maxlen		= sizeof(sysctl_ip_vs_sync_threshold),
-		.mode		= 0644,
-		.proc_handler	= &proc_do_sync_threshold,
-	},
-	{
-		.procname	= "nat_icmp_send",
-		.data		= &sysctl_ip_vs_nat_icmp_send,
-		.maxlen		= sizeof(int),
-		.mode		= 0644,
-		.proc_handler	= &proc_dointvec,
-	},
-	{ .ctl_name = 0 }
-};
-
-const struct ctl_path net_vs_ctl_path[] = {
-	{ .procname = "net", .ctl_name = CTL_NET, },
-	{ .procname = "ipv4", .ctl_name = NET_IPV4, },
-	{ .procname = "vs", },
-	{ }
-};
-EXPORT_SYMBOL_GPL(net_vs_ctl_path);
-
-static struct ctl_table_header * sysctl_header;
-
-#ifdef CONFIG_PROC_FS
-
-struct ip_vs_iter {
-	struct list_head *table;
-	int bucket;
-};
-
-/*
- *	Write the contents of the VS rule table to a PROCfs file.
- *	(It is kept just for backward compatibility)
- */
-static inline const char *ip_vs_fwd_name(unsigned flags)
-{
-	switch (flags & IP_VS_CONN_F_FWD_MASK) {
-	case IP_VS_CONN_F_LOCALNODE:
-		return "Local";
-	case IP_VS_CONN_F_TUNNEL:
-		return "Tunnel";
-	case IP_VS_CONN_F_DROUTE:
-		return "Route";
-	default:
-		return "Masq";
-	}
-}
-
-
-/* Get the Nth entry in the two lists */
-static struct ip_vs_service *ip_vs_info_array(struct seq_file *seq, loff_t pos)
-{
-	struct ip_vs_iter *iter = seq->private;
-	int idx;
-	struct ip_vs_service *svc;
-
-	/* look in hash by protocol */
-	for (idx = 0; idx < IP_VS_SVC_TAB_SIZE; idx++) {
-		list_for_each_entry(svc, &ip_vs_svc_table[idx], s_list) {
-			if (pos-- == 0){
-				iter->table = ip_vs_svc_table;
-				iter->bucket = idx;
-				return svc;
-			}
-		}
-	}
-
-	/* keep looking in fwmark */
-	for (idx = 0; idx < IP_VS_SVC_TAB_SIZE; idx++) {
-		list_for_each_entry(svc, &ip_vs_svc_fwm_table[idx], f_list) {
-			if (pos-- == 0) {
-				iter->table = ip_vs_svc_fwm_table;
-				iter->bucket = idx;
-				return svc;
-			}
-		}
-	}
-
-	return NULL;
-}
-
-static void *ip_vs_info_seq_start(struct seq_file *seq, loff_t *pos)
-__acquires(__ip_vs_svc_lock)
-{
-
-	read_lock_bh(&__ip_vs_svc_lock);
-	return *pos ? ip_vs_info_array(seq, *pos - 1) : SEQ_START_TOKEN;
-}
-
-
-static void *ip_vs_info_seq_next(struct seq_file *seq, void *v, loff_t *pos)
-{
-	struct list_head *e;
-	struct ip_vs_iter *iter;
-	struct ip_vs_service *svc;
-
-	++*pos;
-	if (v == SEQ_START_TOKEN)
-		return ip_vs_info_array(seq,0);
-
-	svc = v;
-	iter = seq->private;
-
-	if (iter->table == ip_vs_svc_table) {
-		/* next service in table hashed by protocol */
-		if ((e = svc->s_list.next) != &ip_vs_svc_table[iter->bucket])
-			return list_entry(e, struct ip_vs_service, s_list);
-
-
-		while (++iter->bucket < IP_VS_SVC_TAB_SIZE) {
-			list_for_each_entry(svc,&ip_vs_svc_table[iter->bucket],
-					    s_list) {
-				return svc;
-			}
-		}
-
-		iter->table = ip_vs_svc_fwm_table;
-		iter->bucket = -1;
-		goto scan_fwmark;
-	}
-
-	/* next service in hashed by fwmark */
-	if ((e = svc->f_list.next) != &ip_vs_svc_fwm_table[iter->bucket])
-		return list_entry(e, struct ip_vs_service, f_list);
-
- scan_fwmark:
-	while (++iter->bucket < IP_VS_SVC_TAB_SIZE) {
-		list_for_each_entry(svc, &ip_vs_svc_fwm_table[iter->bucket],
-				    f_list)
-			return svc;
-	}
-
-	return NULL;
-}
-
-static void ip_vs_info_seq_stop(struct seq_file *seq, void *v)
-__releases(__ip_vs_svc_lock)
-{
-	read_unlock_bh(&__ip_vs_svc_lock);
-}
-
-
-static int ip_vs_info_seq_show(struct seq_file *seq, void *v)
-{
-	if (v == SEQ_START_TOKEN) {
-		seq_printf(seq,
-			"IP Virtual Server version %d.%d.%d (size=%d)\n",
-			NVERSION(IP_VS_VERSION_CODE), IP_VS_CONN_TAB_SIZE);
-		seq_puts(seq,
-			 "Prot LocalAddress:Port Scheduler Flags\n");
-		seq_puts(seq,
-			 "  -> RemoteAddress:Port Forward Weight ActiveConn InActConn\n");
-	} else {
-		const struct ip_vs_service *svc = v;
-		const struct ip_vs_iter *iter = seq->private;
-		const struct ip_vs_dest *dest;
-
-		if (iter->table == ip_vs_svc_table) {
-#ifdef CONFIG_IP_VS_IPV6
-			if (svc->af == AF_INET6)
-				seq_printf(seq, "%s  [" NIP6_FMT "]:%04X %s ",
-					   ip_vs_proto_name(svc->protocol),
-					   NIP6(svc->addr.in6),
-					   ntohs(svc->port),
-					   svc->scheduler->name);
-			else
-#endif
-				seq_printf(seq, "%s  %08X:%04X %s ",
-					   ip_vs_proto_name(svc->protocol),
-					   ntohl(svc->addr.ip),
-					   ntohs(svc->port),
-					   svc->scheduler->name);
-		} else {
-			seq_printf(seq, "FWM  %08X %s ",
-				   svc->fwmark, svc->scheduler->name);
-		}
-
-		if (svc->flags & IP_VS_SVC_F_PERSISTENT)
-			seq_printf(seq, "persistent %d %08X\n",
-				svc->timeout,
-				ntohl(svc->netmask));
-		else
-			seq_putc(seq, '\n');
-
-		list_for_each_entry(dest, &svc->destinations, n_list) {
-#ifdef CONFIG_IP_VS_IPV6
-			if (dest->af == AF_INET6)
-				seq_printf(seq,
-					   "  -> [" NIP6_FMT "]:%04X"
-					   "      %-7s %-6d %-10d %-10d\n",
-					   NIP6(dest->addr.in6),
-					   ntohs(dest->port),
-					   ip_vs_fwd_name(atomic_read(&dest->conn_flags)),
-					   atomic_read(&dest->weight),
-					   atomic_read(&dest->activeconns),
-					   atomic_read(&dest->inactconns));
-			else
-#endif
-				seq_printf(seq,
-					   "  -> %08X:%04X      "
-					   "%-7s %-6d %-10d %-10d\n",
-					   ntohl(dest->addr.ip),
-					   ntohs(dest->port),
-					   ip_vs_fwd_name(atomic_read(&dest->conn_flags)),
-					   atomic_read(&dest->weight),
-					   atomic_read(&dest->activeconns),
-					   atomic_read(&dest->inactconns));
-
-		}
-	}
-	return 0;
-}
-
-static const struct seq_operations ip_vs_info_seq_ops = {
-	.start = ip_vs_info_seq_start,
-	.next  = ip_vs_info_seq_next,
-	.stop  = ip_vs_info_seq_stop,
-	.show  = ip_vs_info_seq_show,
-};
-
-static int ip_vs_info_open(struct inode *inode, struct file *file)
-{
-	return seq_open_private(file, &ip_vs_info_seq_ops,
-			sizeof(struct ip_vs_iter));
-}
-
-static const struct file_operations ip_vs_info_fops = {
-	.owner	 = THIS_MODULE,
-	.open    = ip_vs_info_open,
-	.read    = seq_read,
-	.llseek  = seq_lseek,
-	.release = seq_release_private,
-};
-
-#endif
-
-struct ip_vs_stats ip_vs_stats = {
-	.lock = __SPIN_LOCK_UNLOCKED(ip_vs_stats.lock),
-};
-
-#ifdef CONFIG_PROC_FS
-static int ip_vs_stats_show(struct seq_file *seq, void *v)
-{
-
-/*               01234567 01234567 01234567 0123456701234567 0123456701234567 */
-	seq_puts(seq,
-		 "   Total Incoming Outgoing         Incoming         Outgoing\n");
-	seq_printf(seq,
-		   "   Conns  Packets  Packets            Bytes            Bytes\n");
-
-	spin_lock_bh(&ip_vs_stats.lock);
-	seq_printf(seq, "%8X %8X %8X %16LX %16LX\n\n", ip_vs_stats.ustats.conns,
-		   ip_vs_stats.ustats.inpkts, ip_vs_stats.ustats.outpkts,
-		   (unsigned long long) ip_vs_stats.ustats.inbytes,
-		   (unsigned long long) ip_vs_stats.ustats.outbytes);
-
-/*                 01234567 01234567 01234567 0123456701234567 0123456701234567 */
-	seq_puts(seq,
-		   " Conns/s   Pkts/s   Pkts/s          Bytes/s          Bytes/s\n");
-	seq_printf(seq,"%8X %8X %8X %16X %16X\n",
-			ip_vs_stats.ustats.cps,
-			ip_vs_stats.ustats.inpps,
-			ip_vs_stats.ustats.outpps,
-			ip_vs_stats.ustats.inbps,
-			ip_vs_stats.ustats.outbps);
-	spin_unlock_bh(&ip_vs_stats.lock);
-
-	return 0;
-}
-
-static int ip_vs_stats_seq_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, ip_vs_stats_show, NULL);
-}
-
-static const struct file_operations ip_vs_stats_fops = {
-	.owner = THIS_MODULE,
-	.open = ip_vs_stats_seq_open,
-	.read = seq_read,
-	.llseek = seq_lseek,
-	.release = single_release,
-};
-
-#endif
-
-/*
- *	Set timeout values for tcp tcpfin udp in the timeout_table.
- */
-static int ip_vs_set_timeout(struct ip_vs_timeout_user *u)
-{
-	IP_VS_DBG(2, "Setting timeout tcp:%d tcpfin:%d udp:%d\n",
-		  u->tcp_timeout,
-		  u->tcp_fin_timeout,
-		  u->udp_timeout);
-
-#ifdef CONFIG_IP_VS_PROTO_TCP
-	if (u->tcp_timeout) {
-		ip_vs_protocol_tcp.timeout_table[IP_VS_TCP_S_ESTABLISHED]
-			= u->tcp_timeout * HZ;
-	}
-
-	if (u->tcp_fin_timeout) {
-		ip_vs_protocol_tcp.timeout_table[IP_VS_TCP_S_FIN_WAIT]
-			= u->tcp_fin_timeout * HZ;
-	}
-#endif
-
-#ifdef CONFIG_IP_VS_PROTO_UDP
-	if (u->udp_timeout) {
-		ip_vs_protocol_udp.timeout_table[IP_VS_UDP_S_NORMAL]
-			= u->udp_timeout * HZ;
-	}
-#endif
-	return 0;
-}
-
-
-#define SET_CMDID(cmd)		(cmd - IP_VS_BASE_CTL)
-#define SERVICE_ARG_LEN		(sizeof(struct ip_vs_service_user))
-#define SVCDEST_ARG_LEN		(sizeof(struct ip_vs_service_user) +	\
-				 sizeof(struct ip_vs_dest_user))
-#define TIMEOUT_ARG_LEN		(sizeof(struct ip_vs_timeout_user))
-#define DAEMON_ARG_LEN		(sizeof(struct ip_vs_daemon_user))
-#define MAX_ARG_LEN		SVCDEST_ARG_LEN
-
-static const unsigned char set_arglen[SET_CMDID(IP_VS_SO_SET_MAX)+1] = {
-	[SET_CMDID(IP_VS_SO_SET_ADD)]		= SERVICE_ARG_LEN,
-	[SET_CMDID(IP_VS_SO_SET_EDIT)]		= SERVICE_ARG_LEN,
-	[SET_CMDID(IP_VS_SO_SET_DEL)]		= SERVICE_ARG_LEN,
-	[SET_CMDID(IP_VS_SO_SET_FLUSH)]		= 0,
-	[SET_CMDID(IP_VS_SO_SET_ADDDEST)]	= SVCDEST_ARG_LEN,
-	[SET_CMDID(IP_VS_SO_SET_DELDEST)]	= SVCDEST_ARG_LEN,
-	[SET_CMDID(IP_VS_SO_SET_EDITDEST)]	= SVCDEST_ARG_LEN,
-	[SET_CMDID(IP_VS_SO_SET_TIMEOUT)]	= TIMEOUT_ARG_LEN,
-	[SET_CMDID(IP_VS_SO_SET_STARTDAEMON)]	= DAEMON_ARG_LEN,
-	[SET_CMDID(IP_VS_SO_SET_STOPDAEMON)]	= DAEMON_ARG_LEN,
-	[SET_CMDID(IP_VS_SO_SET_ZERO)]		= SERVICE_ARG_LEN,
-};
-
-static void ip_vs_copy_usvc_compat(struct ip_vs_service_user_kern *usvc,
-				  struct ip_vs_service_user *usvc_compat)
-{
-	usvc->af		= AF_INET;
-	usvc->protocol		= usvc_compat->protocol;
-	usvc->addr.ip		= usvc_compat->addr;
-	usvc->port		= usvc_compat->port;
-	usvc->fwmark		= usvc_compat->fwmark;
-
-	/* Deep copy of sched_name is not needed here */
-	usvc->sched_name	= usvc_compat->sched_name;
-
-	usvc->flags		= usvc_compat->flags;
-	usvc->timeout		= usvc_compat->timeout;
-	usvc->netmask		= usvc_compat->netmask;
-}
-
-static void ip_vs_copy_udest_compat(struct ip_vs_dest_user_kern *udest,
-				   struct ip_vs_dest_user *udest_compat)
-{
-	udest->addr.ip		= udest_compat->addr;
-	udest->port		= udest_compat->port;
-	udest->conn_flags	= udest_compat->conn_flags;
-	udest->weight		= udest_compat->weight;
-	udest->u_threshold	= udest_compat->u_threshold;
-	udest->l_threshold	= udest_compat->l_threshold;
-}
-
-static int
-do_ip_vs_set_ctl(struct sock *sk, int cmd, void __user *user, unsigned int len)
-{
-	int ret;
-	unsigned char arg[MAX_ARG_LEN];
-	struct ip_vs_service_user *usvc_compat;
-	struct ip_vs_service_user_kern usvc;
-	struct ip_vs_service *svc;
-	struct ip_vs_dest_user *udest_compat;
-	struct ip_vs_dest_user_kern udest;
-
-	if (!capable(CAP_NET_ADMIN))
-		return -EPERM;
-
-	if (len != set_arglen[SET_CMDID(cmd)]) {
-		IP_VS_ERR("set_ctl: len %u != %u\n",
-			  len, set_arglen[SET_CMDID(cmd)]);
-		return -EINVAL;
-	}
-
-	if (copy_from_user(arg, user, len) != 0)
-		return -EFAULT;
-
-	/* increase the module use count */
-	ip_vs_use_count_inc();
-
-	if (mutex_lock_interruptible(&__ip_vs_mutex)) {
-		ret = -ERESTARTSYS;
-		goto out_dec;
-	}
-
-	if (cmd == IP_VS_SO_SET_FLUSH) {
-		/* Flush the virtual service */
-		ret = ip_vs_flush();
-		goto out_unlock;
-	} else if (cmd == IP_VS_SO_SET_TIMEOUT) {
-		/* Set timeout values for (tcp tcpfin udp) */
-		ret = ip_vs_set_timeout((struct ip_vs_timeout_user *)arg);
-		goto out_unlock;
-	} else if (cmd == IP_VS_SO_SET_STARTDAEMON) {
-		struct ip_vs_daemon_user *dm = (struct ip_vs_daemon_user *)arg;
-		ret = start_sync_thread(dm->state, dm->mcast_ifn, dm->syncid);
-		goto out_unlock;
-	} else if (cmd == IP_VS_SO_SET_STOPDAEMON) {
-		struct ip_vs_daemon_user *dm = (struct ip_vs_daemon_user *)arg;
-		ret = stop_sync_thread(dm->state);
-		goto out_unlock;
-	}
-
-	usvc_compat = (struct ip_vs_service_user *)arg;
-	udest_compat = (struct ip_vs_dest_user *)(usvc_compat + 1);
-
-	/* We only use the new structs internally, so copy userspace compat
-	 * structs to extended internal versions */
-	ip_vs_copy_usvc_compat(&usvc, usvc_compat);
-	ip_vs_copy_udest_compat(&udest, udest_compat);
-
-	if (cmd == IP_VS_SO_SET_ZERO) {
-		/* if no service address is set, zero counters in all */
-		if (!usvc.fwmark && !usvc.addr.ip && !usvc.port) {
-			ret = ip_vs_zero_all();
-			goto out_unlock;
-		}
-	}
-
-	/* Check for valid protocol: TCP or UDP, even for fwmark!=0 */
-	if (usvc.protocol != IPPROTO_TCP && usvc.protocol != IPPROTO_UDP) {
-		IP_VS_ERR("set_ctl: invalid protocol: %d %d.%d.%d.%d:%d %s\n",
-			  usvc.protocol, NIPQUAD(usvc.addr.ip),
-			  ntohs(usvc.port), usvc.sched_name);
-		ret = -EFAULT;
-		goto out_unlock;
-	}
-
-	/* Lookup the exact service by <protocol, addr, port> or fwmark */
-	if (usvc.fwmark == 0)
-		svc = __ip_vs_service_get(usvc.af, usvc.protocol,
-					  &usvc.addr, usvc.port);
-	else
-		svc = __ip_vs_svc_fwm_get(usvc.af, usvc.fwmark);
-
-	if (cmd != IP_VS_SO_SET_ADD
-	    && (svc == NULL || svc->protocol != usvc.protocol)) {
-		ret = -ESRCH;
-		goto out_unlock;
-	}
-
-	switch (cmd) {
-	case IP_VS_SO_SET_ADD:
-		if (svc != NULL)
-			ret = -EEXIST;
-		else
-			ret = ip_vs_add_service(&usvc, &svc);
-		break;
-	case IP_VS_SO_SET_EDIT:
-		ret = ip_vs_edit_service(svc, &usvc);
-		break;
-	case IP_VS_SO_SET_DEL:
-		ret = ip_vs_del_service(svc);
-		if (!ret)
-			goto out_unlock;
-		break;
-	case IP_VS_SO_SET_ZERO:
-		ret = ip_vs_zero_service(svc);
-		break;
-	case IP_VS_SO_SET_ADDDEST:
-		ret = ip_vs_add_dest(svc, &udest);
-		break;
-	case IP_VS_SO_SET_EDITDEST:
-		ret = ip_vs_edit_dest(svc, &udest);
-		break;
-	case IP_VS_SO_SET_DELDEST:
-		ret = ip_vs_del_dest(svc, &udest);
-		break;
-	default:
-		ret = -EINVAL;
-	}
-
-	if (svc)
-		ip_vs_service_put(svc);
-
-  out_unlock:
-	mutex_unlock(&__ip_vs_mutex);
-  out_dec:
-	/* decrease the module use count */
-	ip_vs_use_count_dec();
-
-	return ret;
-}
-
-
-static void
-ip_vs_copy_stats(struct ip_vs_stats_user *dst, struct ip_vs_stats *src)
-{
-	spin_lock_bh(&src->lock);
-	memcpy(dst, &src->ustats, sizeof(*dst));
-	spin_unlock_bh(&src->lock);
-}
-
-static void
-ip_vs_copy_service(struct ip_vs_service_entry *dst, struct ip_vs_service *src)
-{
-	dst->protocol = src->protocol;
-	dst->addr = src->addr.ip;
-	dst->port = src->port;
-	dst->fwmark = src->fwmark;
-	strlcpy(dst->sched_name, src->scheduler->name, sizeof(dst->sched_name));
-	dst->flags = src->flags;
-	dst->timeout = src->timeout / HZ;
-	dst->netmask = src->netmask;
-	dst->num_dests = src->num_dests;
-	ip_vs_copy_stats(&dst->stats, &src->stats);
-}
-
-static inline int
-__ip_vs_get_service_entries(const struct ip_vs_get_services *get,
-			    struct ip_vs_get_services __user *uptr)
-{
-	int idx, count=0;
-	struct ip_vs_service *svc;
-	struct ip_vs_service_entry entry;
-	int ret = 0;
-
-	for (idx = 0; idx < IP_VS_SVC_TAB_SIZE; idx++) {
-		list_for_each_entry(svc, &ip_vs_svc_table[idx], s_list) {
-			/* Only expose IPv4 entries to old interface */
-			if (svc->af != AF_INET)
-				continue;
-
-			if (count >= get->num_services)
-				goto out;
-			memset(&entry, 0, sizeof(entry));
-			ip_vs_copy_service(&entry, svc);
-			if (copy_to_user(&uptr->entrytable[count],
-					 &entry, sizeof(entry))) {
-				ret = -EFAULT;
-				goto out;
-			}
-			count++;
-		}
-	}
-
-	for (idx = 0; idx < IP_VS_SVC_TAB_SIZE; idx++) {
-		list_for_each_entry(svc, &ip_vs_svc_fwm_table[idx], f_list) {
-			/* Only expose IPv4 entries to old interface */
-			if (svc->af != AF_INET)
-				continue;
-
-			if (count >= get->num_services)
-				goto out;
-			memset(&entry, 0, sizeof(entry));
-			ip_vs_copy_service(&entry, svc);
-			if (copy_to_user(&uptr->entrytable[count],
-					 &entry, sizeof(entry))) {
-				ret = -EFAULT;
-				goto out;
-			}
-			count++;
-		}
-	}
-  out:
-	return ret;
-}
-
-static inline int
-__ip_vs_get_dest_entries(const struct ip_vs_get_dests *get,
-			 struct ip_vs_get_dests __user *uptr)
-{
-	struct ip_vs_service *svc;
-	union nf_inet_addr addr = { .ip = get->addr };
-	int ret = 0;
-
-	if (get->fwmark)
-		svc = __ip_vs_svc_fwm_get(AF_INET, get->fwmark);
-	else
-		svc = __ip_vs_service_get(AF_INET, get->protocol, &addr,
-					  get->port);
-
-	if (svc) {
-		int count = 0;
-		struct ip_vs_dest *dest;
-		struct ip_vs_dest_entry entry;
-
-		list_for_each_entry(dest, &svc->destinations, n_list) {
-			if (count >= get->num_dests)
-				break;
-
-			entry.addr = dest->addr.ip;
-			entry.port = dest->port;
-			entry.conn_flags = atomic_read(&dest->conn_flags);
-			entry.weight = atomic_read(&dest->weight);
-			entry.u_threshold = dest->u_threshold;
-			entry.l_threshold = dest->l_threshold;
-			entry.activeconns = atomic_read(&dest->activeconns);
-			entry.inactconns = atomic_read(&dest->inactconns);
-			entry.persistconns = atomic_read(&dest->persistconns);
-			ip_vs_copy_stats(&entry.stats, &dest->stats);
-			if (copy_to_user(&uptr->entrytable[count],
-					 &entry, sizeof(entry))) {
-				ret = -EFAULT;
-				break;
-			}
-			count++;
-		}
-		ip_vs_service_put(svc);
-	} else
-		ret = -ESRCH;
-	return ret;
-}
-
-static inline void
-__ip_vs_get_timeouts(struct ip_vs_timeout_user *u)
-{
-#ifdef CONFIG_IP_VS_PROTO_TCP
-	u->tcp_timeout =
-		ip_vs_protocol_tcp.timeout_table[IP_VS_TCP_S_ESTABLISHED] / HZ;
-	u->tcp_fin_timeout =
-		ip_vs_protocol_tcp.timeout_table[IP_VS_TCP_S_FIN_WAIT] / HZ;
-#endif
-#ifdef CONFIG_IP_VS_PROTO_UDP
-	u->udp_timeout =
-		ip_vs_protocol_udp.timeout_table[IP_VS_UDP_S_NORMAL] / HZ;
-#endif
-}
-
-
-#define GET_CMDID(cmd)		(cmd - IP_VS_BASE_CTL)
-#define GET_INFO_ARG_LEN	(sizeof(struct ip_vs_getinfo))
-#define GET_SERVICES_ARG_LEN	(sizeof(struct ip_vs_get_services))
-#define GET_SERVICE_ARG_LEN	(sizeof(struct ip_vs_service_entry))
-#define GET_DESTS_ARG_LEN	(sizeof(struct ip_vs_get_dests))
-#define GET_TIMEOUT_ARG_LEN	(sizeof(struct ip_vs_timeout_user))
-#define GET_DAEMON_ARG_LEN	(sizeof(struct ip_vs_daemon_user) * 2)
-
-static const unsigned char get_arglen[GET_CMDID(IP_VS_SO_GET_MAX)+1] = {
-	[GET_CMDID(IP_VS_SO_GET_VERSION)]	= 64,
-	[GET_CMDID(IP_VS_SO_GET_INFO)]		= GET_INFO_ARG_LEN,
-	[GET_CMDID(IP_VS_SO_GET_SERVICES)]	= GET_SERVICES_ARG_LEN,
-	[GET_CMDID(IP_VS_SO_GET_SERVICE)]	= GET_SERVICE_ARG_LEN,
-	[GET_CMDID(IP_VS_SO_GET_DESTS)]		= GET_DESTS_ARG_LEN,
-	[GET_CMDID(IP_VS_SO_GET_TIMEOUT)]	= GET_TIMEOUT_ARG_LEN,
-	[GET_CMDID(IP_VS_SO_GET_DAEMON)]	= GET_DAEMON_ARG_LEN,
-};
-
-static int
-do_ip_vs_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
-{
-	unsigned char arg[128];
-	int ret = 0;
-
-	if (!capable(CAP_NET_ADMIN))
-		return -EPERM;
-
-	if (*len < get_arglen[GET_CMDID(cmd)]) {
-		IP_VS_ERR("get_ctl: len %u < %u\n",
-			  *len, get_arglen[GET_CMDID(cmd)]);
-		return -EINVAL;
-	}
-
-	if (copy_from_user(arg, user, get_arglen[GET_CMDID(cmd)]) != 0)
-		return -EFAULT;
-
-	if (mutex_lock_interruptible(&__ip_vs_mutex))
-		return -ERESTARTSYS;
-
-	switch (cmd) {
-	case IP_VS_SO_GET_VERSION:
-	{
-		char buf[64];
-
-		sprintf(buf, "IP Virtual Server version %d.%d.%d (size=%d)",
-			NVERSION(IP_VS_VERSION_CODE), IP_VS_CONN_TAB_SIZE);
-		if (copy_to_user(user, buf, strlen(buf)+1) != 0) {
-			ret = -EFAULT;
-			goto out;
-		}
-		*len = strlen(buf)+1;
-	}
-	break;
-
-	case IP_VS_SO_GET_INFO:
-	{
-		struct ip_vs_getinfo info;
-		info.version = IP_VS_VERSION_CODE;
-		info.size = IP_VS_CONN_TAB_SIZE;
-		info.num_services = ip_vs_num_services;
-		if (copy_to_user(user, &info, sizeof(info)) != 0)
-			ret = -EFAULT;
-	}
-	break;
-
-	case IP_VS_SO_GET_SERVICES:
-	{
-		struct ip_vs_get_services *get;
-		int size;
-
-		get = (struct ip_vs_get_services *)arg;
-		size = sizeof(*get) +
-			sizeof(struct ip_vs_service_entry) * get->num_services;
-		if (*len != size) {
-			IP_VS_ERR("length: %u != %u\n", *len, size);
-			ret = -EINVAL;
-			goto out;
-		}
-		ret = __ip_vs_get_service_entries(get, user);
-	}
-	break;
-
-	case IP_VS_SO_GET_SERVICE:
-	{
-		struct ip_vs_service_entry *entry;
-		struct ip_vs_service *svc;
-		union nf_inet_addr addr;
-
-		entry = (struct ip_vs_service_entry *)arg;
-		addr.ip = entry->addr;
-		if (entry->fwmark)
-			svc = __ip_vs_svc_fwm_get(AF_INET, entry->fwmark);
-		else
-			svc = __ip_vs_service_get(AF_INET, entry->protocol,
-						  &addr, entry->port);
-		if (svc) {
-			ip_vs_copy_service(entry, svc);
-			if (copy_to_user(user, entry, sizeof(*entry)) != 0)
-				ret = -EFAULT;
-			ip_vs_service_put(svc);
-		} else
-			ret = -ESRCH;
-	}
-	break;
-
-	case IP_VS_SO_GET_DESTS:
-	{
-		struct ip_vs_get_dests *get;
-		int size;
-
-		get = (struct ip_vs_get_dests *)arg;
-		size = sizeof(*get) +
-			sizeof(struct ip_vs_dest_entry) * get->num_dests;
-		if (*len != size) {
-			IP_VS_ERR("length: %u != %u\n", *len, size);
-			ret = -EINVAL;
-			goto out;
-		}
-		ret = __ip_vs_get_dest_entries(get, user);
-	}
-	break;
-
-	case IP_VS_SO_GET_TIMEOUT:
-	{
-		struct ip_vs_timeout_user t;
-
-		__ip_vs_get_timeouts(&t);
-		if (copy_to_user(user, &t, sizeof(t)) != 0)
-			ret = -EFAULT;
-	}
-	break;
-
-	case IP_VS_SO_GET_DAEMON:
-	{
-		struct ip_vs_daemon_user d[2];
-
-		memset(&d, 0, sizeof(d));
-		if (ip_vs_sync_state & IP_VS_STATE_MASTER) {
-			d[0].state = IP_VS_STATE_MASTER;
-			strlcpy(d[0].mcast_ifn, ip_vs_master_mcast_ifn, sizeof(d[0].mcast_ifn));
-			d[0].syncid = ip_vs_master_syncid;
-		}
-		if (ip_vs_sync_state & IP_VS_STATE_BACKUP) {
-			d[1].state = IP_VS_STATE_BACKUP;
-			strlcpy(d[1].mcast_ifn, ip_vs_backup_mcast_ifn, sizeof(d[1].mcast_ifn));
-			d[1].syncid = ip_vs_backup_syncid;
-		}
-		if (copy_to_user(user, &d, sizeof(d)) != 0)
-			ret = -EFAULT;
-	}
-	break;
-
-	default:
-		ret = -EINVAL;
-	}
-
-  out:
-	mutex_unlock(&__ip_vs_mutex);
-	return ret;
-}
-
-
-static struct nf_sockopt_ops ip_vs_sockopts = {
-	.pf		= PF_INET,
-	.set_optmin	= IP_VS_BASE_CTL,
-	.set_optmax	= IP_VS_SO_SET_MAX+1,
-	.set		= do_ip_vs_set_ctl,
-	.get_optmin	= IP_VS_BASE_CTL,
-	.get_optmax	= IP_VS_SO_GET_MAX+1,
-	.get		= do_ip_vs_get_ctl,
-	.owner		= THIS_MODULE,
-};
-
-/*
- * Generic Netlink interface
- */
-
-/* IPVS genetlink family */
-static struct genl_family ip_vs_genl_family = {
-	.id		= GENL_ID_GENERATE,
-	.hdrsize	= 0,
-	.name		= IPVS_GENL_NAME,
-	.version	= IPVS_GENL_VERSION,
-	.maxattr	= IPVS_CMD_MAX,
-};
-
-/* Policy used for first-level command attributes */
-static const struct nla_policy ip_vs_cmd_policy[IPVS_CMD_ATTR_MAX + 1] = {
-	[IPVS_CMD_ATTR_SERVICE]		= { .type = NLA_NESTED },
-	[IPVS_CMD_ATTR_DEST]		= { .type = NLA_NESTED },
-	[IPVS_CMD_ATTR_DAEMON]		= { .type = NLA_NESTED },
-	[IPVS_CMD_ATTR_TIMEOUT_TCP]	= { .type = NLA_U32 },
-	[IPVS_CMD_ATTR_TIMEOUT_TCP_FIN]	= { .type = NLA_U32 },
-	[IPVS_CMD_ATTR_TIMEOUT_UDP]	= { .type = NLA_U32 },
-};
-
-/* Policy used for attributes in nested attribute IPVS_CMD_ATTR_DAEMON */
-static const struct nla_policy ip_vs_daemon_policy[IPVS_DAEMON_ATTR_MAX + 1] = {
-	[IPVS_DAEMON_ATTR_STATE]	= { .type = NLA_U32 },
-	[IPVS_DAEMON_ATTR_MCAST_IFN]	= { .type = NLA_NUL_STRING,
-					    .len = IP_VS_IFNAME_MAXLEN },
-	[IPVS_DAEMON_ATTR_SYNC_ID]	= { .type = NLA_U32 },
-};
-
-/* Policy used for attributes in nested attribute IPVS_CMD_ATTR_SERVICE */
-static const struct nla_policy ip_vs_svc_policy[IPVS_SVC_ATTR_MAX + 1] = {
-	[IPVS_SVC_ATTR_AF]		= { .type = NLA_U16 },
-	[IPVS_SVC_ATTR_PROTOCOL]	= { .type = NLA_U16 },
-	[IPVS_SVC_ATTR_ADDR]		= { .type = NLA_BINARY,
-					    .len = sizeof(union nf_inet_addr) },
-	[IPVS_SVC_ATTR_PORT]		= { .type = NLA_U16 },
-	[IPVS_SVC_ATTR_FWMARK]		= { .type = NLA_U32 },
-	[IPVS_SVC_ATTR_SCHED_NAME]	= { .type = NLA_NUL_STRING,
-					    .len = IP_VS_SCHEDNAME_MAXLEN },
-	[IPVS_SVC_ATTR_FLAGS]		= { .type = NLA_BINARY,
-					    .len = sizeof(struct ip_vs_flags) },
-	[IPVS_SVC_ATTR_TIMEOUT]		= { .type = NLA_U32 },
-	[IPVS_SVC_ATTR_NETMASK]		= { .type = NLA_U32 },
-	[IPVS_SVC_ATTR_STATS]		= { .type = NLA_NESTED },
-};
-
-/* Policy used for attributes in nested attribute IPVS_CMD_ATTR_DEST */
-static const struct nla_policy ip_vs_dest_policy[IPVS_DEST_ATTR_MAX + 1] = {
-	[IPVS_DEST_ATTR_ADDR]		= { .type = NLA_BINARY,
-					    .len = sizeof(union nf_inet_addr) },
-	[IPVS_DEST_ATTR_PORT]		= { .type = NLA_U16 },
-	[IPVS_DEST_ATTR_FWD_METHOD]	= { .type = NLA_U32 },
-	[IPVS_DEST_ATTR_WEIGHT]		= { .type = NLA_U32 },
-	[IPVS_DEST_ATTR_U_THRESH]	= { .type = NLA_U32 },
-	[IPVS_DEST_ATTR_L_THRESH]	= { .type = NLA_U32 },
-	[IPVS_DEST_ATTR_ACTIVE_CONNS]	= { .type = NLA_U32 },
-	[IPVS_DEST_ATTR_INACT_CONNS]	= { .type = NLA_U32 },
-	[IPVS_DEST_ATTR_PERSIST_CONNS]	= { .type = NLA_U32 },
-	[IPVS_DEST_ATTR_STATS]		= { .type = NLA_NESTED },
-};
-
-static int ip_vs_genl_fill_stats(struct sk_buff *skb, int container_type,
-				 struct ip_vs_stats *stats)
-{
-	struct nlattr *nl_stats = nla_nest_start(skb, container_type);
-	if (!nl_stats)
-		return -EMSGSIZE;
-
-	spin_lock_bh(&stats->lock);
-
-	NLA_PUT_U32(skb, IPVS_STATS_ATTR_CONNS, stats->ustats.conns);
-	NLA_PUT_U32(skb, IPVS_STATS_ATTR_INPKTS, stats->ustats.inpkts);
-	NLA_PUT_U32(skb, IPVS_STATS_ATTR_OUTPKTS, stats->ustats.outpkts);
-	NLA_PUT_U64(skb, IPVS_STATS_ATTR_INBYTES, stats->ustats.inbytes);
-	NLA_PUT_U64(skb, IPVS_STATS_ATTR_OUTBYTES, stats->ustats.outbytes);
-	NLA_PUT_U32(skb, IPVS_STATS_ATTR_CPS, stats->ustats.cps);
-	NLA_PUT_U32(skb, IPVS_STATS_ATTR_INPPS, stats->ustats.inpps);
-	NLA_PUT_U32(skb, IPVS_STATS_ATTR_OUTPPS, stats->ustats.outpps);
-	NLA_PUT_U32(skb, IPVS_STATS_ATTR_INBPS, stats->ustats.inbps);
-	NLA_PUT_U32(skb, IPVS_STATS_ATTR_OUTBPS, stats->ustats.outbps);
-
-	spin_unlock_bh(&stats->lock);
-
-	nla_nest_end(skb, nl_stats);
-
-	return 0;
-
-nla_put_failure:
-	spin_unlock_bh(&stats->lock);
-	nla_nest_cancel(skb, nl_stats);
-	return -EMSGSIZE;
-}
-
-static int ip_vs_genl_fill_service(struct sk_buff *skb,
-				   struct ip_vs_service *svc)
-{
-	struct nlattr *nl_service;
-	struct ip_vs_flags flags = { .flags = svc->flags,
-				     .mask = ~0 };
-
-	nl_service = nla_nest_start(skb, IPVS_CMD_ATTR_SERVICE);
-	if (!nl_service)
-		return -EMSGSIZE;
-
-	NLA_PUT_U16(skb, IPVS_SVC_ATTR_AF, svc->af);
-
-	if (svc->fwmark) {
-		NLA_PUT_U32(skb, IPVS_SVC_ATTR_FWMARK, svc->fwmark);
-	} else {
-		NLA_PUT_U16(skb, IPVS_SVC_ATTR_PROTOCOL, svc->protocol);
-		NLA_PUT(skb, IPVS_SVC_ATTR_ADDR, sizeof(svc->addr), &svc->addr);
-		NLA_PUT_U16(skb, IPVS_SVC_ATTR_PORT, svc->port);
-	}
-
-	NLA_PUT_STRING(skb, IPVS_SVC_ATTR_SCHED_NAME, svc->scheduler->name);
-	NLA_PUT(skb, IPVS_SVC_ATTR_FLAGS, sizeof(flags), &flags);
-	NLA_PUT_U32(skb, IPVS_SVC_ATTR_TIMEOUT, svc->timeout / HZ);
-	NLA_PUT_U32(skb, IPVS_SVC_ATTR_NETMASK, svc->netmask);
-
-	if (ip_vs_genl_fill_stats(skb, IPVS_SVC_ATTR_STATS, &svc->stats))
-		goto nla_put_failure;
-
-	nla_nest_end(skb, nl_service);
-
-	return 0;
-
-nla_put_failure:
-	nla_nest_cancel(skb, nl_service);
-	return -EMSGSIZE;
-}
-
-static int ip_vs_genl_dump_service(struct sk_buff *skb,
-				   struct ip_vs_service *svc,
-				   struct netlink_callback *cb)
-{
-	void *hdr;
-
-	hdr = genlmsg_put(skb, NETLINK_CB(cb->skb).pid, cb->nlh->nlmsg_seq,
-			  &ip_vs_genl_family, NLM_F_MULTI,
-			  IPVS_CMD_NEW_SERVICE);
-	if (!hdr)
-		return -EMSGSIZE;
-
-	if (ip_vs_genl_fill_service(skb, svc) < 0)
-		goto nla_put_failure;
-
-	return genlmsg_end(skb, hdr);
-
-nla_put_failure:
-	genlmsg_cancel(skb, hdr);
-	return -EMSGSIZE;
-}
-
-static int ip_vs_genl_dump_services(struct sk_buff *skb,
-				    struct netlink_callback *cb)
-{
-	int idx = 0, i;
-	int start = cb->args[0];
-	struct ip_vs_service *svc;
-
-	mutex_lock(&__ip_vs_mutex);
-	for (i = 0; i < IP_VS_SVC_TAB_SIZE; i++) {
-		list_for_each_entry(svc, &ip_vs_svc_table[i], s_list) {
-			if (++idx <= start)
-				continue;
-			if (ip_vs_genl_dump_service(skb, svc, cb) < 0) {
-				idx--;
-				goto nla_put_failure;
-			}
-		}
-	}
-
-	for (i = 0; i < IP_VS_SVC_TAB_SIZE; i++) {
-		list_for_each_entry(svc, &ip_vs_svc_fwm_table[i], f_list) {
-			if (++idx <= start)
-				continue;
-			if (ip_vs_genl_dump_service(skb, svc, cb) < 0) {
-				idx--;
-				goto nla_put_failure;
-			}
-		}
-	}
-
-nla_put_failure:
-	mutex_unlock(&__ip_vs_mutex);
-	cb->args[0] = idx;
-
-	return skb->len;
-}
-
-static int ip_vs_genl_parse_service(struct ip_vs_service_user_kern *usvc,
-				    struct nlattr *nla, int full_entry)
-{
-	struct nlattr *attrs[IPVS_SVC_ATTR_MAX + 1];
-	struct nlattr *nla_af, *nla_port, *nla_fwmark, *nla_protocol, *nla_addr;
-
-	/* Parse mandatory identifying service fields first */
-	if (nla == NULL ||
-	    nla_parse_nested(attrs, IPVS_SVC_ATTR_MAX, nla, ip_vs_svc_policy))
-		return -EINVAL;
-
-	nla_af		= attrs[IPVS_SVC_ATTR_AF];
-	nla_protocol	= attrs[IPVS_SVC_ATTR_PROTOCOL];
-	nla_addr	= attrs[IPVS_SVC_ATTR_ADDR];
-	nla_port	= attrs[IPVS_SVC_ATTR_PORT];
-	nla_fwmark	= attrs[IPVS_SVC_ATTR_FWMARK];
-
-	if (!(nla_af && (nla_fwmark || (nla_port && nla_protocol && nla_addr))))
-		return -EINVAL;
-
-	usvc->af = nla_get_u16(nla_af);
-#ifdef CONFIG_IP_VS_IPV6
-	if (usvc->af != AF_INET && usvc->af != AF_INET6)
-#else
-	if (usvc->af != AF_INET)
-#endif
-		return -EAFNOSUPPORT;
-
-	if (nla_fwmark) {
-		usvc->protocol = IPPROTO_TCP;
-		usvc->fwmark = nla_get_u32(nla_fwmark);
-	} else {
-		usvc->protocol = nla_get_u16(nla_protocol);
-		nla_memcpy(&usvc->addr, nla_addr, sizeof(usvc->addr));
-		usvc->port = nla_get_u16(nla_port);
-		usvc->fwmark = 0;
-	}
-
-	/* If a full entry was requested, check for the additional fields */
-	if (full_entry) {
-		struct nlattr *nla_sched, *nla_flags, *nla_timeout,
-			      *nla_netmask;
-		struct ip_vs_flags flags;
-		struct ip_vs_service *svc;
-
-		nla_sched = attrs[IPVS_SVC_ATTR_SCHED_NAME];
-		nla_flags = attrs[IPVS_SVC_ATTR_FLAGS];
-		nla_timeout = attrs[IPVS_SVC_ATTR_TIMEOUT];
-		nla_netmask = attrs[IPVS_SVC_ATTR_NETMASK];
-
-		if (!(nla_sched && nla_flags && nla_timeout && nla_netmask))
-			return -EINVAL;
-
-		nla_memcpy(&flags, nla_flags, sizeof(flags));
-
-		/* prefill flags from service if it already exists */
-		if (usvc->fwmark)
-			svc = __ip_vs_svc_fwm_get(usvc->af, usvc->fwmark);
-		else
-			svc = __ip_vs_service_get(usvc->af, usvc->protocol,
-						  &usvc->addr, usvc->port);
-		if (svc) {
-			usvc->flags = svc->flags;
-			ip_vs_service_put(svc);
-		} else
-			usvc->flags = 0;
-
-		/* set new flags from userland */
-		usvc->flags = (usvc->flags & ~flags.mask) |
-			      (flags.flags & flags.mask);
-		usvc->sched_name = nla_data(nla_sched);
-		usvc->timeout = nla_get_u32(nla_timeout);
-		usvc->netmask = nla_get_u32(nla_netmask);
-	}
-
-	return 0;
-}
-
-static struct ip_vs_service *ip_vs_genl_find_service(struct nlattr *nla)
-{
-	struct ip_vs_service_user_kern usvc;
-	int ret;
-
-	ret = ip_vs_genl_parse_service(&usvc, nla, 0);
-	if (ret)
-		return ERR_PTR(ret);
-
-	if (usvc.fwmark)
-		return __ip_vs_svc_fwm_get(usvc.af, usvc.fwmark);
-	else
-		return __ip_vs_service_get(usvc.af, usvc.protocol,
-					   &usvc.addr, usvc.port);
-}
-
-static int ip_vs_genl_fill_dest(struct sk_buff *skb, struct ip_vs_dest *dest)
-{
-	struct nlattr *nl_dest;
-
-	nl_dest = nla_nest_start(skb, IPVS_CMD_ATTR_DEST);
-	if (!nl_dest)
-		return -EMSGSIZE;
-
-	NLA_PUT(skb, IPVS_DEST_ATTR_ADDR, sizeof(dest->addr), &dest->addr);
-	NLA_PUT_U16(skb, IPVS_DEST_ATTR_PORT, dest->port);
-
-	NLA_PUT_U32(skb, IPVS_DEST_ATTR_FWD_METHOD,
-		    atomic_read(&dest->conn_flags) & IP_VS_CONN_F_FWD_MASK);
-	NLA_PUT_U32(skb, IPVS_DEST_ATTR_WEIGHT, atomic_read(&dest->weight));
-	NLA_PUT_U32(skb, IPVS_DEST_ATTR_U_THRESH, dest->u_threshold);
-	NLA_PUT_U32(skb, IPVS_DEST_ATTR_L_THRESH, dest->l_threshold);
-	NLA_PUT_U32(skb, IPVS_DEST_ATTR_ACTIVE_CONNS,
-		    atomic_read(&dest->activeconns));
-	NLA_PUT_U32(skb, IPVS_DEST_ATTR_INACT_CONNS,
-		    atomic_read(&dest->inactconns));
-	NLA_PUT_U32(skb, IPVS_DEST_ATTR_PERSIST_CONNS,
-		    atomic_read(&dest->persistconns));
-
-	if (ip_vs_genl_fill_stats(skb, IPVS_DEST_ATTR_STATS, &dest->stats))
-		goto nla_put_failure;
-
-	nla_nest_end(skb, nl_dest);
-
-	return 0;
-
-nla_put_failure:
-	nla_nest_cancel(skb, nl_dest);
-	return -EMSGSIZE;
-}
-
-static int ip_vs_genl_dump_dest(struct sk_buff *skb, struct ip_vs_dest *dest,
-				struct netlink_callback *cb)
-{
-	void *hdr;
-
-	hdr = genlmsg_put(skb, NETLINK_CB(cb->skb).pid, cb->nlh->nlmsg_seq,
-			  &ip_vs_genl_family, NLM_F_MULTI,
-			  IPVS_CMD_NEW_DEST);
-	if (!hdr)
-		return -EMSGSIZE;
-
-	if (ip_vs_genl_fill_dest(skb, dest) < 0)
-		goto nla_put_failure;
-
-	return genlmsg_end(skb, hdr);
-
-nla_put_failure:
-	genlmsg_cancel(skb, hdr);
-	return -EMSGSIZE;
-}
-
-static int ip_vs_genl_dump_dests(struct sk_buff *skb,
-				 struct netlink_callback *cb)
-{
-	int idx = 0;
-	int start = cb->args[0];
-	struct ip_vs_service *svc;
-	struct ip_vs_dest *dest;
-	struct nlattr *attrs[IPVS_CMD_ATTR_MAX + 1];
-
-	mutex_lock(&__ip_vs_mutex);
-
-	/* Try to find the service for which to dump destinations */
-	if (nlmsg_parse(cb->nlh, GENL_HDRLEN, attrs,
-			IPVS_CMD_ATTR_MAX, ip_vs_cmd_policy))
-		goto out_err;
-
-	svc = ip_vs_genl_find_service(attrs[IPVS_CMD_ATTR_SERVICE]);
-	if (IS_ERR(svc) || svc == NULL)
-		goto out_err;
-
-	/* Dump the destinations */
-	list_for_each_entry(dest, &svc->destinations, n_list) {
-		if (++idx <= start)
-			continue;
-		if (ip_vs_genl_dump_dest(skb, dest, cb) < 0) {
-			idx--;
-			goto nla_put_failure;
-		}
-	}
-
-nla_put_failure:
-	cb->args[0] = idx;
-	ip_vs_service_put(svc);
-
-out_err:
-	mutex_unlock(&__ip_vs_mutex);
-
-	return skb->len;
-}
-
-static int ip_vs_genl_parse_dest(struct ip_vs_dest_user_kern *udest,
-				 struct nlattr *nla, int full_entry)
-{
-	struct nlattr *attrs[IPVS_DEST_ATTR_MAX + 1];
-	struct nlattr *nla_addr, *nla_port;
-
-	/* Parse mandatory identifying destination fields first */
-	if (nla == NULL ||
-	    nla_parse_nested(attrs, IPVS_DEST_ATTR_MAX, nla, ip_vs_dest_policy))
-		return -EINVAL;
-
-	nla_addr	= attrs[IPVS_DEST_ATTR_ADDR];
-	nla_port	= attrs[IPVS_DEST_ATTR_PORT];
-
-	if (!(nla_addr && nla_port))
-		return -EINVAL;
-
-	nla_memcpy(&udest->addr, nla_addr, sizeof(udest->addr));
-	udest->port = nla_get_u16(nla_port);
-
-	/* If a full entry was requested, check for the additional fields */
-	if (full_entry) {
-		struct nlattr *nla_fwd, *nla_weight, *nla_u_thresh,
-			      *nla_l_thresh;
-
-		nla_fwd		= attrs[IPVS_DEST_ATTR_FWD_METHOD];
-		nla_weight	= attrs[IPVS_DEST_ATTR_WEIGHT];
-		nla_u_thresh	= attrs[IPVS_DEST_ATTR_U_THRESH];
-		nla_l_thresh	= attrs[IPVS_DEST_ATTR_L_THRESH];
-
-		if (!(nla_fwd && nla_weight && nla_u_thresh && nla_l_thresh))
-			return -EINVAL;
-
-		udest->conn_flags = nla_get_u32(nla_fwd)
-				    & IP_VS_CONN_F_FWD_MASK;
-		udest->weight = nla_get_u32(nla_weight);
-		udest->u_threshold = nla_get_u32(nla_u_thresh);
-		udest->l_threshold = nla_get_u32(nla_l_thresh);
-	}
-
-	return 0;
-}
-
-static int ip_vs_genl_fill_daemon(struct sk_buff *skb, __be32 state,
-				  const char *mcast_ifn, __be32 syncid)
-{
-	struct nlattr *nl_daemon;
-
-	nl_daemon = nla_nest_start(skb, IPVS_CMD_ATTR_DAEMON);
-	if (!nl_daemon)
-		return -EMSGSIZE;
-
-	NLA_PUT_U32(skb, IPVS_DAEMON_ATTR_STATE, state);
-	NLA_PUT_STRING(skb, IPVS_DAEMON_ATTR_MCAST_IFN, mcast_ifn);
-	NLA_PUT_U32(skb, IPVS_DAEMON_ATTR_SYNC_ID, syncid);
-
-	nla_nest_end(skb, nl_daemon);
-
-	return 0;
-
-nla_put_failure:
-	nla_nest_cancel(skb, nl_daemon);
-	return -EMSGSIZE;
-}
-
-static int ip_vs_genl_dump_daemon(struct sk_buff *skb, __be32 state,
-				  const char *mcast_ifn, __be32 syncid,
-				  struct netlink_callback *cb)
-{
-	void *hdr;
-	hdr = genlmsg_put(skb, NETLINK_CB(cb->skb).pid, cb->nlh->nlmsg_seq,
-			  &ip_vs_genl_family, NLM_F_MULTI,
-			  IPVS_CMD_NEW_DAEMON);
-	if (!hdr)
-		return -EMSGSIZE;
-
-	if (ip_vs_genl_fill_daemon(skb, state, mcast_ifn, syncid))
-		goto nla_put_failure;
-
-	return genlmsg_end(skb, hdr);
-
-nla_put_failure:
-	genlmsg_cancel(skb, hdr);
-	return -EMSGSIZE;
-}
-
-static int ip_vs_genl_dump_daemons(struct sk_buff *skb,
-				   struct netlink_callback *cb)
-{
-	mutex_lock(&__ip_vs_mutex);
-	if ((ip_vs_sync_state & IP_VS_STATE_MASTER) && !cb->args[0]) {
-		if (ip_vs_genl_dump_daemon(skb, IP_VS_STATE_MASTER,
-					   ip_vs_master_mcast_ifn,
-					   ip_vs_master_syncid, cb) < 0)
-			goto nla_put_failure;
-
-		cb->args[0] = 1;
-	}
-
-	if ((ip_vs_sync_state & IP_VS_STATE_BACKUP) && !cb->args[1]) {
-		if (ip_vs_genl_dump_daemon(skb, IP_VS_STATE_BACKUP,
-					   ip_vs_backup_mcast_ifn,
-					   ip_vs_backup_syncid, cb) < 0)
-			goto nla_put_failure;
-
-		cb->args[1] = 1;
-	}
-
-nla_put_failure:
-	mutex_unlock(&__ip_vs_mutex);
-
-	return skb->len;
-}
-
-static int ip_vs_genl_new_daemon(struct nlattr **attrs)
-{
-	if (!(attrs[IPVS_DAEMON_ATTR_STATE] &&
-	      attrs[IPVS_DAEMON_ATTR_MCAST_IFN] &&
-	      attrs[IPVS_DAEMON_ATTR_SYNC_ID]))
-		return -EINVAL;
-
-	return start_sync_thread(nla_get_u32(attrs[IPVS_DAEMON_ATTR_STATE]),
-				 nla_data(attrs[IPVS_DAEMON_ATTR_MCAST_IFN]),
-				 nla_get_u32(attrs[IPVS_DAEMON_ATTR_SYNC_ID]));
-}
-
-static int ip_vs_genl_del_daemon(struct nlattr **attrs)
-{
-	if (!attrs[IPVS_DAEMON_ATTR_STATE])
-		return -EINVAL;
-
-	return stop_sync_thread(nla_get_u32(attrs[IPVS_DAEMON_ATTR_STATE]));
-}
-
-static int ip_vs_genl_set_config(struct nlattr **attrs)
-{
-	struct ip_vs_timeout_user t;
-
-	__ip_vs_get_timeouts(&t);
-
-	if (attrs[IPVS_CMD_ATTR_TIMEOUT_TCP])
-		t.tcp_timeout = nla_get_u32(attrs[IPVS_CMD_ATTR_TIMEOUT_TCP]);
-
-	if (attrs[IPVS_CMD_ATTR_TIMEOUT_TCP_FIN])
-		t.tcp_fin_timeout =
-			nla_get_u32(attrs[IPVS_CMD_ATTR_TIMEOUT_TCP_FIN]);
-
-	if (attrs[IPVS_CMD_ATTR_TIMEOUT_UDP])
-		t.udp_timeout = nla_get_u32(attrs[IPVS_CMD_ATTR_TIMEOUT_UDP]);
-
-	return ip_vs_set_timeout(&t);
-}
-
-static int ip_vs_genl_set_cmd(struct sk_buff *skb, struct genl_info *info)
-{
-	struct ip_vs_service *svc = NULL;
-	struct ip_vs_service_user_kern usvc;
-	struct ip_vs_dest_user_kern udest;
-	int ret = 0, cmd;
-	int need_full_svc = 0, need_full_dest = 0;
-
-	cmd = info->genlhdr->cmd;
-
-	mutex_lock(&__ip_vs_mutex);
-
-	if (cmd == IPVS_CMD_FLUSH) {
-		ret = ip_vs_flush();
-		goto out;
-	} else if (cmd == IPVS_CMD_SET_CONFIG) {
-		ret = ip_vs_genl_set_config(info->attrs);
-		goto out;
-	} else if (cmd == IPVS_CMD_NEW_DAEMON ||
-		   cmd == IPVS_CMD_DEL_DAEMON) {
-
-		struct nlattr *daemon_attrs[IPVS_DAEMON_ATTR_MAX + 1];
-
-		if (!info->attrs[IPVS_CMD_ATTR_DAEMON] ||
-		    nla_parse_nested(daemon_attrs, IPVS_DAEMON_ATTR_MAX,
-				     info->attrs[IPVS_CMD_ATTR_DAEMON],
-				     ip_vs_daemon_policy)) {
-			ret = -EINVAL;
-			goto out;
-		}
-
-		if (cmd == IPVS_CMD_NEW_DAEMON)
-			ret = ip_vs_genl_new_daemon(daemon_attrs);
-		else
-			ret = ip_vs_genl_del_daemon(daemon_attrs);
-		goto out;
-	} else if (cmd == IPVS_CMD_ZERO &&
-		   !info->attrs[IPVS_CMD_ATTR_SERVICE]) {
-		ret = ip_vs_zero_all();
-		goto out;
-	}
-
-	/* All following commands require a service argument, so check if we
-	 * received a valid one. We need a full service specification when
-	 * adding / editing a service. Only identifying members otherwise. */
-	if (cmd == IPVS_CMD_NEW_SERVICE || cmd == IPVS_CMD_SET_SERVICE)
-		need_full_svc = 1;
-
-	ret = ip_vs_genl_parse_service(&usvc,
-				       info->attrs[IPVS_CMD_ATTR_SERVICE],
-				       need_full_svc);
-	if (ret)
-		goto out;
-
-	/* Lookup the exact service by <protocol, addr, port> or fwmark */
-	if (usvc.fwmark == 0)
-		svc = __ip_vs_service_get(usvc.af, usvc.protocol,
-					  &usvc.addr, usvc.port);
-	else
-		svc = __ip_vs_svc_fwm_get(usvc.af, usvc.fwmark);
-
-	/* Unless we're adding a new service, the service must already exist */
-	if ((cmd != IPVS_CMD_NEW_SERVICE) && (svc == NULL)) {
-		ret = -ESRCH;
-		goto out;
-	}
-
-	/* Destination commands require a valid destination argument. For
-	 * adding / editing a destination, we need a full destination
-	 * specification. */
-	if (cmd == IPVS_CMD_NEW_DEST || cmd == IPVS_CMD_SET_DEST ||
-	    cmd == IPVS_CMD_DEL_DEST) {
-		if (cmd != IPVS_CMD_DEL_DEST)
-			need_full_dest = 1;
-
-		ret = ip_vs_genl_parse_dest(&udest,
-					    info->attrs[IPVS_CMD_ATTR_DEST],
-					    need_full_dest);
-		if (ret)
-			goto out;
-	}
-
-	switch (cmd) {
-	case IPVS_CMD_NEW_SERVICE:
-		if (svc == NULL)
-			ret = ip_vs_add_service(&usvc, &svc);
-		else
-			ret = -EEXIST;
-		break;
-	case IPVS_CMD_SET_SERVICE:
-		ret = ip_vs_edit_service(svc, &usvc);
-		break;
-	case IPVS_CMD_DEL_SERVICE:
-		ret = ip_vs_del_service(svc);
-		break;
-	case IPVS_CMD_NEW_DEST:
-		ret = ip_vs_add_dest(svc, &udest);
-		break;
-	case IPVS_CMD_SET_DEST:
-		ret = ip_vs_edit_dest(svc, &udest);
-		break;
-	case IPVS_CMD_DEL_DEST:
-		ret = ip_vs_del_dest(svc, &udest);
-		break;
-	case IPVS_CMD_ZERO:
-		ret = ip_vs_zero_service(svc);
-		break;
-	default:
-		ret = -EINVAL;
-	}
-
-out:
-	if (svc)
-		ip_vs_service_put(svc);
-	mutex_unlock(&__ip_vs_mutex);
-
-	return ret;
-}
-
-static int ip_vs_genl_get_cmd(struct sk_buff *skb, struct genl_info *info)
-{
-	struct sk_buff *msg;
-	void *reply;
-	int ret, cmd, reply_cmd;
-
-	cmd = info->genlhdr->cmd;
-
-	if (cmd == IPVS_CMD_GET_SERVICE)
-		reply_cmd = IPVS_CMD_NEW_SERVICE;
-	else if (cmd == IPVS_CMD_GET_INFO)
-		reply_cmd = IPVS_CMD_SET_INFO;
-	else if (cmd == IPVS_CMD_GET_CONFIG)
-		reply_cmd = IPVS_CMD_SET_CONFIG;
-	else {
-		IP_VS_ERR("unknown Generic Netlink command\n");
-		return -EINVAL;
-	}
-
-	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
-	if (!msg)
-		return -ENOMEM;
-
-	mutex_lock(&__ip_vs_mutex);
-
-	reply = genlmsg_put_reply(msg, info, &ip_vs_genl_family, 0, reply_cmd);
-	if (reply == NULL)
-		goto nla_put_failure;
-
-	switch (cmd) {
-	case IPVS_CMD_GET_SERVICE:
-	{
-		struct ip_vs_service *svc;
-
-		svc = ip_vs_genl_find_service(info->attrs[IPVS_CMD_ATTR_SERVICE]);
-		if (IS_ERR(svc)) {
-			ret = PTR_ERR(svc);
-			goto out_err;
-		} else if (svc) {
-			ret = ip_vs_genl_fill_service(msg, svc);
-			ip_vs_service_put(svc);
-			if (ret)
-				goto nla_put_failure;
-		} else {
-			ret = -ESRCH;
-			goto out_err;
-		}
-
-		break;
-	}
-
-	case IPVS_CMD_GET_CONFIG:
-	{
-		struct ip_vs_timeout_user t;
-
-		__ip_vs_get_timeouts(&t);
-#ifdef CONFIG_IP_VS_PROTO_TCP
-		NLA_PUT_U32(msg, IPVS_CMD_ATTR_TIMEOUT_TCP, t.tcp_timeout);
-		NLA_PUT_U32(msg, IPVS_CMD_ATTR_TIMEOUT_TCP_FIN,
-			    t.tcp_fin_timeout);
-#endif
-#ifdef CONFIG_IP_VS_PROTO_UDP
-		NLA_PUT_U32(msg, IPVS_CMD_ATTR_TIMEOUT_UDP, t.udp_timeout);
-#endif
-
-		break;
-	}
-
-	case IPVS_CMD_GET_INFO:
-		NLA_PUT_U32(msg, IPVS_INFO_ATTR_VERSION, IP_VS_VERSION_CODE);
-		NLA_PUT_U32(msg, IPVS_INFO_ATTR_CONN_TAB_SIZE,
-			    IP_VS_CONN_TAB_SIZE);
-		break;
-	}
-
-	genlmsg_end(msg, reply);
-	ret = genlmsg_unicast(msg, info->snd_pid);
-	goto out;
-
-nla_put_failure:
-	IP_VS_ERR("not enough space in Netlink message\n");
-	ret = -EMSGSIZE;
-
-out_err:
-	nlmsg_free(msg);
-out:
-	mutex_unlock(&__ip_vs_mutex);
-
-	return ret;
-}
-
-
-static struct genl_ops ip_vs_genl_ops[] __read_mostly = {
-	{
-		.cmd	= IPVS_CMD_NEW_SERVICE,
-		.flags	= GENL_ADMIN_PERM,
-		.policy	= ip_vs_cmd_policy,
-		.doit	= ip_vs_genl_set_cmd,
-	},
-	{
-		.cmd	= IPVS_CMD_SET_SERVICE,
-		.flags	= GENL_ADMIN_PERM,
-		.policy	= ip_vs_cmd_policy,
-		.doit	= ip_vs_genl_set_cmd,
-	},
-	{
-		.cmd	= IPVS_CMD_DEL_SERVICE,
-		.flags	= GENL_ADMIN_PERM,
-		.policy	= ip_vs_cmd_policy,
-		.doit	= ip_vs_genl_set_cmd,
-	},
-	{
-		.cmd	= IPVS_CMD_GET_SERVICE,
-		.flags	= GENL_ADMIN_PERM,
-		.doit	= ip_vs_genl_get_cmd,
-		.dumpit	= ip_vs_genl_dump_services,
-		.policy	= ip_vs_cmd_policy,
-	},
-	{
-		.cmd	= IPVS_CMD_NEW_DEST,
-		.flags	= GENL_ADMIN_PERM,
-		.policy	= ip_vs_cmd_policy,
-		.doit	= ip_vs_genl_set_cmd,
-	},
-	{
-		.cmd	= IPVS_CMD_SET_DEST,
-		.flags	= GENL_ADMIN_PERM,
-		.policy	= ip_vs_cmd_policy,
-		.doit	= ip_vs_genl_set_cmd,
-	},
-	{
-		.cmd	= IPVS_CMD_DEL_DEST,
-		.flags	= GENL_ADMIN_PERM,
-		.policy	= ip_vs_cmd_policy,
-		.doit	= ip_vs_genl_set_cmd,
-	},
-	{
-		.cmd	= IPVS_CMD_GET_DEST,
-		.flags	= GENL_ADMIN_PERM,
-		.policy	= ip_vs_cmd_policy,
-		.dumpit	= ip_vs_genl_dump_dests,
-	},
-	{
-		.cmd	= IPVS_CMD_NEW_DAEMON,
-		.flags	= GENL_ADMIN_PERM,
-		.policy	= ip_vs_cmd_policy,
-		.doit	= ip_vs_genl_set_cmd,
-	},
-	{
-		.cmd	= IPVS_CMD_DEL_DAEMON,
-		.flags	= GENL_ADMIN_PERM,
-		.policy	= ip_vs_cmd_policy,
-		.doit	= ip_vs_genl_set_cmd,
-	},
-	{
-		.cmd	= IPVS_CMD_GET_DAEMON,
-		.flags	= GENL_ADMIN_PERM,
-		.dumpit	= ip_vs_genl_dump_daemons,
-	},
-	{
-		.cmd	= IPVS_CMD_SET_CONFIG,
-		.flags	= GENL_ADMIN_PERM,
-		.policy	= ip_vs_cmd_policy,
-		.doit	= ip_vs_genl_set_cmd,
-	},
-	{
-		.cmd	= IPVS_CMD_GET_CONFIG,
-		.flags	= GENL_ADMIN_PERM,
-		.doit	= ip_vs_genl_get_cmd,
-	},
-	{
-		.cmd	= IPVS_CMD_GET_INFO,
-		.flags	= GENL_ADMIN_PERM,
-		.doit	= ip_vs_genl_get_cmd,
-	},
-	{
-		.cmd	= IPVS_CMD_ZERO,
-		.flags	= GENL_ADMIN_PERM,
-		.policy	= ip_vs_cmd_policy,
-		.doit	= ip_vs_genl_set_cmd,
-	},
-	{
-		.cmd	= IPVS_CMD_FLUSH,
-		.flags	= GENL_ADMIN_PERM,
-		.doit	= ip_vs_genl_set_cmd,
-	},
-};
-
-static int __init ip_vs_genl_register(void)
-{
-	int ret, i;
-
-	ret = genl_register_family(&ip_vs_genl_family);
-	if (ret)
-		return ret;
-
-	for (i = 0; i < ARRAY_SIZE(ip_vs_genl_ops); i++) {
-		ret = genl_register_ops(&ip_vs_genl_family, &ip_vs_genl_ops[i]);
-		if (ret)
-			goto err_out;
-	}
-	return 0;
-
-err_out:
-	genl_unregister_family(&ip_vs_genl_family);
-	return ret;
-}
-
-static void ip_vs_genl_unregister(void)
-{
-	genl_unregister_family(&ip_vs_genl_family);
-}
-
-/* End of Generic Netlink interface definitions */
-
-
-int __init ip_vs_control_init(void)
-{
-	int ret;
-	int idx;
-
-	EnterFunction(2);
-
-	ret = nf_register_sockopt(&ip_vs_sockopts);
-	if (ret) {
-		IP_VS_ERR("cannot register sockopt.\n");
-		return ret;
-	}
-
-	ret = ip_vs_genl_register();
-	if (ret) {
-		IP_VS_ERR("cannot register Generic Netlink interface.\n");
-		nf_unregister_sockopt(&ip_vs_sockopts);
-		return ret;
-	}
-
-	proc_net_fops_create(&init_net, "ip_vs", 0, &ip_vs_info_fops);
-	proc_net_fops_create(&init_net, "ip_vs_stats",0, &ip_vs_stats_fops);
-
-	sysctl_header = register_sysctl_paths(net_vs_ctl_path, vs_vars);
-
-	/* Initialize ip_vs_svc_table, ip_vs_svc_fwm_table, ip_vs_rtable */
-	for(idx = 0; idx < IP_VS_SVC_TAB_SIZE; idx++)  {
-		INIT_LIST_HEAD(&ip_vs_svc_table[idx]);
-		INIT_LIST_HEAD(&ip_vs_svc_fwm_table[idx]);
-	}
-	for(idx = 0; idx < IP_VS_RTAB_SIZE; idx++)  {
-		INIT_LIST_HEAD(&ip_vs_rtable[idx]);
-	}
-
-	ip_vs_new_estimator(&ip_vs_stats);
-
-	/* Hook the defense timer */
-	schedule_delayed_work(&defense_work, DEFENSE_TIMER_PERIOD);
-
-	LeaveFunction(2);
-	return 0;
-}
-
-
-void ip_vs_control_cleanup(void)
-{
-	EnterFunction(2);
-	ip_vs_trash_cleanup();
-	cancel_rearming_delayed_work(&defense_work);
-	cancel_work_sync(&defense_work.work);
-	ip_vs_kill_estimator(&ip_vs_stats);
-	unregister_sysctl_table(sysctl_header);
-	proc_net_remove(&init_net, "ip_vs_stats");
-	proc_net_remove(&init_net, "ip_vs");
-	ip_vs_genl_unregister();
-	nf_unregister_sockopt(&ip_vs_sockopts);
-	LeaveFunction(2);
-}