Merge ../linus

37 files changed, 495 insertions, 680 deletions

diff --git a/net/ipv6/Kconfig b/net/ipv6/Kconfig
index e6f83b6..f8a107a 100644
--- a/net/ipv6/Kconfig
+++ b/net/ipv6/Kconfig
@@ -88,7 +88,7 @@ config INET6_IPCOMP
 	tristate "IPv6: IPComp transformation"
 	depends on IPV6
 	select XFRM
-	select INET6_TUNNEL
+	select INET6_XFRM_TUNNEL
 	select CRYPTO
 	select CRYPTO_DEFLATE
 	---help---
@@ -97,19 +97,18 @@ config INET6_IPCOMP
 
 	  If unsure, say Y.
 
+config INET6_XFRM_TUNNEL
+	tristate
+	select INET6_TUNNEL
+	default n
+
 config INET6_TUNNEL
-	tristate "IPv6: tunnel transformation"
-	depends on IPV6
-	select XFRM
-	---help---
-	  Support for generic IPv6-in-IPv6 tunnel transformation, which is
-	  required by the IPv6-in-IPv6 tunneling module as well as tunnel mode
-	  IPComp.
-	  
-	  If unsure, say Y.
+	tristate
+	default n
 
 config IPV6_TUNNEL
 	tristate "IPv6: IPv6-in-IPv6 tunnel"
+	select INET6_TUNNEL
 	depends on IPV6
 	---help---
 	  Support for IPv6-in-IPv6 tunnels described in RFC 2473.
diff --git a/net/ipv6/Makefile b/net/ipv6/Makefile
index 41877ab..a760b09 100644
--- a/net/ipv6/Makefile
+++ b/net/ipv6/Makefile
@@ -18,7 +18,8 @@ ipv6-objs += $(ipv6-y)
 obj-$(CONFIG_INET6_AH) += ah6.o
 obj-$(CONFIG_INET6_ESP) += esp6.o
 obj-$(CONFIG_INET6_IPCOMP) += ipcomp6.o
-obj-$(CONFIG_INET6_TUNNEL) += xfrm6_tunnel.o 
+obj-$(CONFIG_INET6_XFRM_TUNNEL) += xfrm6_tunnel.o
+obj-$(CONFIG_INET6_TUNNEL) += tunnel6.o
 obj-$(CONFIG_NETFILTER)	+= netfilter/
 
 obj-$(CONFIG_IPV6_TUNNEL) += ip6_tunnel.o
diff --git a/net/ipv6/ah6.c b/net/ipv6/ah6.c
index cf58251..6778173 100644
--- a/net/ipv6/ah6.c
+++ b/net/ipv6/ah6.c
@@ -229,7 +229,7 @@ error:
 	return err;
 }
 
-static int ah6_input(struct xfrm_state *x, struct xfrm_decap_state *decap, struct sk_buff *skb)
+static int ah6_input(struct xfrm_state *x, struct sk_buff *skb)
 {
 	/*
 	 * Before process AH
diff --git a/net/ipv6/esp6.c b/net/ipv6/esp6.c
index 3dcaac7..22f0460 100644
--- a/net/ipv6/esp6.c
+++ b/net/ipv6/esp6.c
@@ -130,7 +130,7 @@ error:
 	return err;
 }
 
-static int esp6_input(struct xfrm_state *x, struct xfrm_decap_state *decap, struct sk_buff *skb)
+static int esp6_input(struct xfrm_state *x, struct sk_buff *skb)
 {
 	struct ipv6hdr *iph;
 	struct ipv6_esp_hdr *esph;
diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
index 21eb725..1044b6f 100644
--- a/net/ipv6/icmp.c
+++ b/net/ipv6/icmp.c
@@ -717,7 +717,7 @@ int __init icmpv6_init(struct net_proto_family *ops)
 	struct sock *sk;
 	int err, i, j;
 
-	for_each_cpu(i) {
+	for_each_possible_cpu(i) {
 		err = sock_create_kern(PF_INET6, SOCK_RAW, IPPROTO_ICMPV6,
 				       &per_cpu(__icmpv6_socket, i));
 		if (err < 0) {
@@ -763,7 +763,7 @@ void icmpv6_cleanup(void)
 {
 	int i;
 
-	for_each_cpu(i) {
+	for_each_possible_cpu(i) {
 		sock_release(per_cpu(__icmpv6_socket, i));
 	}
 	inet6_del_protocol(&icmpv6_protocol, IPPROTO_ICMPV6);
diff --git a/net/ipv6/inet6_hashtables.c b/net/ipv6/inet6_hashtables.c
index bb8ffb8..2ae84c9 100644
--- a/net/ipv6/inet6_hashtables.c
+++ b/net/ipv6/inet6_hashtables.c
@@ -23,6 +23,86 @@
 #include <net/inet6_hashtables.h>
 #include <net/ip.h>
 
+void __inet6_hash(struct inet_hashinfo *hashinfo,
+				struct sock *sk)
+{
+	struct hlist_head *list;
+	rwlock_t *lock;
+
+	BUG_TRAP(sk_unhashed(sk));
+
+	if (sk->sk_state == TCP_LISTEN) {
+		list = &hashinfo->listening_hash[inet_sk_listen_hashfn(sk)];
+		lock = &hashinfo->lhash_lock;
+		inet_listen_wlock(hashinfo);
+	} else {
+		unsigned int hash;
+		sk->sk_hash = hash = inet6_sk_ehashfn(sk);
+		hash &= (hashinfo->ehash_size - 1);
+		list = &hashinfo->ehash[hash].chain;
+		lock = &hashinfo->ehash[hash].lock;
+		write_lock(lock);
+	}
+
+	__sk_add_node(sk, list);
+	sock_prot_inc_use(sk->sk_prot);
+	write_unlock(lock);
+}
+EXPORT_SYMBOL(__inet6_hash);
+
+/*
+ * Sockets in TCP_CLOSE state are _always_ taken out of the hash, so
+ * we need not check it for TCP lookups anymore, thanks Alexey. -DaveM
+ *
+ * The sockhash lock must be held as a reader here.
+ */
+struct sock *__inet6_lookup_established(struct inet_hashinfo *hashinfo,
+					   const struct in6_addr *saddr,
+					   const u16 sport,
+					   const struct in6_addr *daddr,
+					   const u16 hnum,
+					   const int dif)
+{
+	struct sock *sk;
+	const struct hlist_node *node;
+	const __u32 ports = INET_COMBINED_PORTS(sport, hnum);
+	/* Optimize here for direct hit, only listening connections can
+	 * have wildcards anyways.
+	 */
+	unsigned int hash = inet6_ehashfn(daddr, hnum, saddr, sport);
+	struct inet_ehash_bucket *head = inet_ehash_bucket(hashinfo, hash);
+
+	prefetch(head->chain.first);
+	read_lock(&head->lock);
+	sk_for_each(sk, node, &head->chain) {
+		/* For IPV6 do the cheaper port and family tests first. */
+		if (INET6_MATCH(sk, hash, saddr, daddr, ports, dif))
+			goto hit; /* You sunk my battleship! */
+	}
+	/* Must check for a TIME_WAIT'er before going to listener hash. */
+	sk_for_each(sk, node, &(head + hashinfo->ehash_size)->chain) {
+		const struct inet_timewait_sock *tw = inet_twsk(sk);
+
+		if(*((__u32 *)&(tw->tw_dport))	== ports	&&
+		   sk->sk_family		== PF_INET6) {
+			const struct inet6_timewait_sock *tw6 = inet6_twsk(sk);
+
+			if (ipv6_addr_equal(&tw6->tw_v6_daddr, saddr)	&&
+			    ipv6_addr_equal(&tw6->tw_v6_rcv_saddr, daddr)	&&
+			    (!sk->sk_bound_dev_if || sk->sk_bound_dev_if == dif))
+				goto hit;
+		}
+	}
+	read_unlock(&head->lock);
+	return NULL;
+
+hit:
+	sock_hold(sk);
+	read_unlock(&head->lock);
+	return sk;
+}
+EXPORT_SYMBOL(__inet6_lookup_established);
+
 struct sock *inet6_lookup_listener(struct inet_hashinfo *hashinfo,
 				   const struct in6_addr *daddr,
 				   const unsigned short hnum, const int dif)
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index 4859753..a995796 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -44,7 +44,6 @@
 
 #include <net/ip.h>
 #include <net/ipv6.h>
-#include <net/protocol.h>
 #include <net/ip6_route.h>
 #include <net/addrconf.h>
 #include <net/ip6_tunnel.h>
@@ -391,7 +390,7 @@ parse_tlv_tnl_enc_lim(struct sk_buff *skb, __u8 * raw)
  *   to the specifications in RFC 2473.
  **/
 
-static void 
+static int
 ip6ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
 	   int type, int code, int offset, __u32 info)
 {
@@ -402,6 +401,7 @@ ip6ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
 	int rel_code = ICMPV6_ADDR_UNREACH;
 	__u32 rel_info = 0;
 	__u16 len;
+	int err = -ENOENT;
 
 	/* If the packet doesn't contain the original IPv6 header we are 
 	   in trouble since we might need the source address for further 
@@ -411,6 +411,8 @@ ip6ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
 	if ((t = ip6ip6_tnl_lookup(&ipv6h->daddr, &ipv6h->saddr)) == NULL)
 		goto out;
 
+	err = 0;
+
 	switch (type) {
 		__u32 teli;
 		struct ipv6_tlv_tnl_enc_lim *tel;
@@ -492,6 +494,7 @@ ip6ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
 	}
 out:
 	read_unlock(&ip6ip6_lock);
+	return err;
 }
 
 static inline void ip6ip6_ecn_decapsulate(struct ipv6hdr *outer_iph,
@@ -511,15 +514,11 @@ static inline void ip6ip6_ecn_decapsulate(struct ipv6hdr *outer_iph,
  **/
 
 static int 
-ip6ip6_rcv(struct sk_buff **pskb)
+ip6ip6_rcv(struct sk_buff *skb)
 {
-	struct sk_buff *skb = *pskb;
 	struct ipv6hdr *ipv6h;
 	struct ip6_tnl *t;
 
-	if (!pskb_may_pull(skb, sizeof (*ipv6h)))
-		goto discard;
-
 	ipv6h = skb->nh.ipv6h;
 
 	read_lock(&ip6ip6_lock);
@@ -527,8 +526,7 @@ ip6ip6_rcv(struct sk_buff **pskb)
 	if ((t = ip6ip6_tnl_lookup(&ipv6h->saddr, &ipv6h->daddr)) != NULL) {
 		if (!xfrm6_policy_check(NULL, XFRM_POLICY_IN, skb)) {
 			read_unlock(&ip6ip6_lock);
-			kfree_skb(skb);
-			return 0;
+			goto discard;
 		}
 
 		if (!(t->parms.flags & IP6_TNL_F_CAP_RCV)) {
@@ -555,9 +553,11 @@ ip6ip6_rcv(struct sk_buff **pskb)
 		return 0;
 	}
 	read_unlock(&ip6ip6_lock);
-	icmpv6_send(skb, ICMPV6_DEST_UNREACH, ICMPV6_ADDR_UNREACH, 0, skb->dev);
-discard:
 	return 1;
+
+discard:
+	kfree_skb(skb);
+	return 0;
 }
 
 static inline struct ipv6_txoptions *create_tel(__u8 encap_limit)
@@ -1112,39 +1112,12 @@ ip6ip6_fb_tnl_dev_init(struct net_device *dev)
 	return 0;
 }
 
-#ifdef CONFIG_INET6_TUNNEL
 static struct xfrm6_tunnel ip6ip6_handler = {
 	.handler	= ip6ip6_rcv,
 	.err_handler	= ip6ip6_err,
+	.priority	=	1,
 };
 
-static inline int ip6ip6_register(void)
-{
-	return xfrm6_tunnel_register(&ip6ip6_handler);
-}
-
-static inline int ip6ip6_unregister(void)
-{
-	return xfrm6_tunnel_deregister(&ip6ip6_handler);
-}
-#else
-static struct inet6_protocol xfrm6_tunnel_protocol = {
-	.handler	= ip6ip6_rcv,
-	.err_handler	= ip6ip6_err,
-	.flags		= INET6_PROTO_NOPOLICY|INET6_PROTO_FINAL,
-};
-
-static inline int ip6ip6_register(void)
-{
-	return inet6_add_protocol(&xfrm6_tunnel_protocol, IPPROTO_IPV6);
-}
-
-static inline int ip6ip6_unregister(void)
-{
-	return inet6_del_protocol(&xfrm6_tunnel_protocol, IPPROTO_IPV6);
-}
-#endif
-
 /**
  * ip6_tunnel_init - register protocol and reserve needed resources
  *
@@ -1155,7 +1128,7 @@ static int __init ip6_tunnel_init(void)
 {
 	int  err;
 
-	if (ip6ip6_register() < 0) {
+	if (xfrm6_tunnel_register(&ip6ip6_handler)) {
 		printk(KERN_ERR "ip6ip6 init: can't register tunnel\n");
 		return -EAGAIN;
 	}
@@ -1174,7 +1147,7 @@ static int __init ip6_tunnel_init(void)
 	}
 	return 0;
 fail:
-	ip6ip6_unregister();
+	xfrm6_tunnel_deregister(&ip6ip6_handler);
 	return err;
 }
 
@@ -1184,7 +1157,7 @@ fail:
 
 static void __exit ip6_tunnel_cleanup(void)
 {
-	if (ip6ip6_unregister() < 0)
+	if (xfrm6_tunnel_deregister(&ip6ip6_handler))
 		printk(KERN_INFO "ip6ip6 close: can't deregister tunnel\n");
 
 	unregister_netdev(ip6ip6_fb_tnl_dev);
diff --git a/net/ipv6/ipcomp6.c b/net/ipv6/ipcomp6.c
index d4cfec3..05eb67d 100644
--- a/net/ipv6/ipcomp6.c
+++ b/net/ipv6/ipcomp6.c
@@ -63,7 +63,7 @@ static void **ipcomp6_scratches;
 static int ipcomp6_scratch_users;
 static LIST_HEAD(ipcomp6_tfms_list);
 
-static int ipcomp6_input(struct xfrm_state *x, struct xfrm_decap_state *decap, struct sk_buff *skb)
+static int ipcomp6_input(struct xfrm_state *x, struct sk_buff *skb)
 {
 	int err = 0;
 	u8 nexthdr = 0;
@@ -290,7 +290,7 @@ static void ipcomp6_free_scratches(void)
 	if (!scratches)
 		return;
 
-	for_each_cpu(i) {
+	for_each_possible_cpu(i) {
 		void *scratch = *per_cpu_ptr(scratches, i);
 
 		vfree(scratch);
@@ -313,7 +313,7 @@ static void **ipcomp6_alloc_scratches(void)
 
 	ipcomp6_scratches = scratches;
 
-	for_each_cpu(i) {
+	for_each_possible_cpu(i) {
 		void *scratch = vmalloc(IPCOMP_SCRATCH_SIZE);
 		if (!scratch)
 			return NULL;
@@ -344,7 +344,7 @@ static void ipcomp6_free_tfms(struct crypto_tfm **tfms)
 	if (!tfms)
 		return;
 
-	for_each_cpu(cpu) {
+	for_each_possible_cpu(cpu) {
 		struct crypto_tfm *tfm = *per_cpu_ptr(tfms, cpu);
 		crypto_free_tfm(tfm);
 	}
@@ -384,7 +384,7 @@ static struct crypto_tfm **ipcomp6_alloc_tfms(const char *alg_name)
 	if (!tfms)
 		goto error;
 
-	for_each_cpu(cpu) {
+	for_each_possible_cpu(cpu) {
 		struct crypto_tfm *tfm = crypto_alloc_tfm(alg_name, 0);
 		if (!tfm)
 			goto error;
diff --git a/net/ipv6/netfilter.c b/net/ipv6/netfilter.c
index d750cfc..395a417 100644
--- a/net/ipv6/netfilter.c
+++ b/net/ipv6/netfilter.c
@@ -7,6 +7,7 @@
 #include <net/ipv6.h>
 #include <net/ip6_route.h>
 #include <net/xfrm.h>
+#include <net/ip6_checksum.h>
 
 int ip6_route_me_harder(struct sk_buff *skb)
 {
@@ -54,7 +55,7 @@ struct ip6_rt_info {
 	struct in6_addr saddr;
 };
 
-static void save(const struct sk_buff *skb, struct nf_info *info)
+static void nf_ip6_saveroute(const struct sk_buff *skb, struct nf_info *info)
 {
 	struct ip6_rt_info *rt_info = nf_info_reroute(info);
 
@@ -66,7 +67,7 @@ static void save(const struct sk_buff *skb, struct nf_info *info)
 	}
 }
 
-static int reroute(struct sk_buff **pskb, const struct nf_info *info)
+static int nf_ip6_reroute(struct sk_buff **pskb, const struct nf_info *info)
 {
 	struct ip6_rt_info *rt_info = nf_info_reroute(info);
 
@@ -79,15 +80,50 @@ static int reroute(struct sk_buff **pskb, const struct nf_info *info)
 	return 0;
 }
 
-static struct nf_queue_rerouter ip6_reroute = {
-	.rer_size	= sizeof(struct ip6_rt_info),
-	.save 		= &save,
-	.reroute	= &reroute,
+unsigned int nf_ip6_checksum(struct sk_buff *skb, unsigned int hook,
+			     unsigned int dataoff, u_int8_t protocol)
+{
+	struct ipv6hdr *ip6h = skb->nh.ipv6h;
+	unsigned int csum = 0;
+
+	switch (skb->ip_summed) {
+	case CHECKSUM_HW:
+		if (hook != NF_IP6_PRE_ROUTING && hook != NF_IP6_LOCAL_IN)
+			break;
+		if (!csum_ipv6_magic(&ip6h->saddr, &ip6h->daddr,
+			    	     skb->len - dataoff, protocol,
+				     csum_sub(skb->csum,
+					      skb_checksum(skb, 0,
+							   dataoff, 0)))) {
+			skb->ip_summed = CHECKSUM_UNNECESSARY;
+			break;
+		}
+		/* fall through */
+	case CHECKSUM_NONE:
+		skb->csum = ~csum_ipv6_magic(&ip6h->saddr, &ip6h->daddr,
+					     skb->len - dataoff,
+					     protocol,
+					     csum_sub(0,
+						      skb_checksum(skb, 0,
+							           dataoff, 0)));
+		csum = __skb_checksum_complete(skb);
+	}
+	return csum;
+}
+
+EXPORT_SYMBOL(nf_ip6_checksum);
+
+static struct nf_afinfo nf_ip6_afinfo = {
+	.family		= AF_INET6,
+	.checksum	= nf_ip6_checksum,
+	.saveroute	= nf_ip6_saveroute,
+	.reroute	= nf_ip6_reroute,
+	.route_key_size	= sizeof(struct ip6_rt_info),
 };
 
 int __init ipv6_netfilter_init(void)
 {
-	return nf_register_queue_rerouter(PF_INET6, &ip6_reroute);
+	return nf_register_afinfo(&nf_ip6_afinfo);
 }
 
 /* This can be called from inet6_init() on errors, so it cannot
@@ -95,5 +131,5 @@ int __init ipv6_netfilter_init(void)
  */
 void ipv6_netfilter_fini(void)
 {
-	nf_unregister_queue_rerouter(PF_INET6);
+	nf_unregister_afinfo(&nf_ip6_afinfo);
 }
diff --git a/net/ipv6/netfilter/Kconfig b/net/ipv6/netfilter/Kconfig
index 98f7875..4bc4e5b 100644
--- a/net/ipv6/netfilter/Kconfig
+++ b/net/ipv6/netfilter/Kconfig
@@ -87,16 +87,6 @@ config IP6_NF_MATCH_HL
 
 	  To compile it as a module, choose M here.  If unsure, say N.
 
-config IP6_NF_MATCH_MULTIPORT
-	tristate "Multiple port match support"
-	depends on IP6_NF_IPTABLES
-	help
-	  Multiport matching allows you to match TCP or UDP packets based on
-	  a series of source or destination ports: normally a rule can only
-	  match a single range of ports.
-
-	  To compile it as a module, choose M here.  If unsure, say N.
-
 config IP6_NF_MATCH_OWNER
 	tristate "Owner match support"
 	depends on IP6_NF_IPTABLES
@@ -115,11 +105,11 @@ config IP6_NF_MATCH_IPV6HEADER
 
 	  To compile it as a module, choose M here.  If unsure, say N.
 
-config IP6_NF_MATCH_AHESP
-	tristate "AH/ESP match support"
+config IP6_NF_MATCH_AH
+	tristate "AH match support"
 	depends on IP6_NF_IPTABLES
 	help
-	  This module allows one to match AH and ESP packets.
+	  This module allows one to match AH packets.
 
 	  To compile it as a module, choose M here.  If unsure, say N.
 
diff --git a/net/ipv6/netfilter/Makefile b/net/ipv6/netfilter/Makefile
index 8436a1a..eeeb57d 100644
--- a/net/ipv6/netfilter/Makefile
+++ b/net/ipv6/netfilter/Makefile
@@ -8,9 +8,8 @@ obj-$(CONFIG_IP6_NF_MATCH_RT) += ip6t_rt.o
 obj-$(CONFIG_IP6_NF_MATCH_OPTS) += ip6t_hbh.o ip6t_dst.o
 obj-$(CONFIG_IP6_NF_MATCH_IPV6HEADER) += ip6t_ipv6header.o
 obj-$(CONFIG_IP6_NF_MATCH_FRAG) += ip6t_frag.o
-obj-$(CONFIG_IP6_NF_MATCH_AHESP) += ip6t_esp.o ip6t_ah.o
+obj-$(CONFIG_IP6_NF_MATCH_AH) += ip6t_ah.o
 obj-$(CONFIG_IP6_NF_MATCH_EUI64) += ip6t_eui64.o
-obj-$(CONFIG_IP6_NF_MATCH_MULTIPORT) += ip6t_multiport.o
 obj-$(CONFIG_IP6_NF_MATCH_OWNER) += ip6t_owner.o
 obj-$(CONFIG_IP6_NF_FILTER) += ip6table_filter.o
 obj-$(CONFIG_IP6_NF_MANGLE) += ip6table_mangle.o
diff --git a/net/ipv6/netfilter/ip6_queue.c b/net/ipv6/netfilter/ip6_queue.c
index 344eab3..b4b7d44 100644
--- a/net/ipv6/netfilter/ip6_queue.c
+++ b/net/ipv6/netfilter/ip6_queue.c
@@ -658,15 +658,11 @@ static struct nf_queue_handler nfqh = {
 	.outfn	= &ipq_enqueue_packet,
 };
 
-static int
-init_or_cleanup(int init)
+static int __init ip6_queue_init(void)
 {
 	int status = -ENOMEM;
 	struct proc_dir_entry *proc;
 	
-	if (!init)
-		goto cleanup;
-
 	netlink_register_notifier(&ipq_nl_notifier);
 	ipqnl = netlink_kernel_create(NETLINK_IP6_FW, 0, ipq_rcv_sk,
 	                              THIS_MODULE);
@@ -693,11 +689,6 @@ init_or_cleanup(int init)
 	}
 	return status;
 
-cleanup:
-	nf_unregister_queue_handlers(&nfqh);
-	synchronize_net();
-	ipq_flush(NF_DROP);
-	
 cleanup_sysctl:
 	unregister_sysctl_table(ipq_sysctl_header);
 	unregister_netdevice_notifier(&ipq_dev_notifier);
@@ -713,19 +704,25 @@ cleanup_netlink_notifier:
 	return status;
 }
 
-static int __init init(void)
+static void __exit ip6_queue_fini(void)
 {
-	
-	return init_or_cleanup(1);
-}
+	nf_unregister_queue_handlers(&nfqh);
+	synchronize_net();
+	ipq_flush(NF_DROP);
 
-static void __exit fini(void)
-{
-	init_or_cleanup(0);
+	unregister_sysctl_table(ipq_sysctl_header);
+	unregister_netdevice_notifier(&ipq_dev_notifier);
+	proc_net_remove(IPQ_PROC_FS_NAME);
+
+	sock_release(ipqnl->sk_socket);
+	mutex_lock(&ipqnl_mutex);
+	mutex_unlock(&ipqnl_mutex);
+
+	netlink_unregister_notifier(&ipq_nl_notifier);
 }
 
 MODULE_DESCRIPTION("IPv6 packet queue handler");
 MODULE_LICENSE("GPL");
 
-module_init(init);
-module_exit(fini);
+module_init(ip6_queue_init);
+module_exit(ip6_queue_fini);
diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c
index db3c9ae..642b4b1 100644
--- a/net/ipv6/netfilter/ip6_tables.c
+++ b/net/ipv6/netfilter/ip6_tables.c
@@ -788,7 +788,7 @@ translate_table(const char *name,
 	}
 
 	/* And one copy for every other CPU */
-	for_each_cpu(i) {
+	for_each_possible_cpu(i) {
 		if (newinfo->entries[i] && newinfo->entries[i] != entry0)
 			memcpy(newinfo->entries[i], entry0, newinfo->size);
 	}
@@ -841,7 +841,7 @@ get_counters(const struct xt_table_info *t,
 			   counters,
 			   &i);
 
-	for_each_cpu(cpu) {
+	for_each_possible_cpu(cpu) {
 		if (cpu == curcpu)
 			continue;
 		i = 0;
@@ -1406,7 +1406,7 @@ static struct ip6t_match icmp6_matchstruct = {
 	.family		= AF_INET6,
 };
 
-static int __init init(void)
+static int __init ip6_tables_init(void)
 {
 	int ret;
 
@@ -1429,7 +1429,7 @@ static int __init init(void)
 	return 0;
 }
 
-static void __exit fini(void)
+static void __exit ip6_tables_fini(void)
 {
 	nf_unregister_sockopt(&ip6t_sockopts);
 	xt_unregister_match(&icmp6_matchstruct);
@@ -1517,5 +1517,5 @@ EXPORT_SYMBOL(ip6t_do_table);
 EXPORT_SYMBOL(ip6t_ext_hdr);
 EXPORT_SYMBOL(ipv6_find_hdr);
 
-module_init(init);
-module_exit(fini);
+module_init(ip6_tables_init);
+module_exit(ip6_tables_fini);
diff --git a/net/ipv6/netfilter/ip6t_HL.c b/net/ipv6/netfilter/ip6t_HL.c
index da14c6d..b8eff8e 100644
--- a/net/ipv6/netfilter/ip6t_HL.c
+++ b/net/ipv6/netfilter/ip6t_HL.c
@@ -93,15 +93,15 @@ static struct ip6t_target ip6t_HL = {
 	.me		= THIS_MODULE
 };
 
-static int __init init(void)
+static int __init ip6t_hl_init(void)
 {
 	return ip6t_register_target(&ip6t_HL);
 }
 
-static void __exit fini(void)
+static void __exit ip6t_hl_fini(void)
 {
 	ip6t_unregister_target(&ip6t_HL);
 }
 
-module_init(init);
-module_exit(fini);
+module_init(ip6t_hl_init);
+module_exit(ip6t_hl_fini);
diff --git a/net/ipv6/netfilter/ip6t_LOG.c b/net/ipv6/netfilter/ip6t_LOG.c
index 07c6bcb..a96c0de 100644
--- a/net/ipv6/netfilter/ip6t_LOG.c
+++ b/net/ipv6/netfilter/ip6t_LOG.c
@@ -483,7 +483,7 @@ static struct nf_logger ip6t_logger = {
 	.me		= THIS_MODULE,
 };
 
-static int __init init(void)
+static int __init ip6t_log_init(void)
 {
 	if (ip6t_register_target(&ip6t_log_reg))
 		return -EINVAL;
@@ -497,11 +497,11 @@ static int __init init(void)
 	return 0;
 }
 
-static void __exit fini(void)
+static void __exit ip6t_log_fini(void)
 {
 	nf_log_unregister_logger(&ip6t_logger);
 	ip6t_unregister_target(&ip6t_log_reg);
 }
 
-module_init(init);
-module_exit(fini);
+module_init(ip6t_log_init);
+module_exit(ip6t_log_fini);
diff --git a/net/ipv6/netfilter/ip6t_REJECT.c b/net/ipv6/netfilter/ip6t_REJECT.c
index ddfa385..de1175c 100644
--- a/net/ipv6/netfilter/ip6t_REJECT.c
+++ b/net/ipv6/netfilter/ip6t_REJECT.c
@@ -255,17 +255,17 @@ static struct ip6t_target ip6t_reject_reg = {
 	.me		= THIS_MODULE
 };
 
-static int __init init(void)
+static int __init ip6t_reject_init(void)
 {
 	if (ip6t_register_target(&ip6t_reject_reg))
 		return -EINVAL;
 	return 0;
 }
 
-static void __exit fini(void)
+static void __exit ip6t_reject_fini(void)
 {
 	ip6t_unregister_target(&ip6t_reject_reg);
 }
 
-module_init(init);
-module_exit(fini);
+module_init(ip6t_reject_init);
+module_exit(ip6t_reject_fini);
diff --git a/net/ipv6/netfilter/ip6t_ah.c b/net/ipv6/netfilter/ip6t_ah.c
index 178f6fb..2f7bb20 100644
--- a/net/ipv6/netfilter/ip6t_ah.c
+++ b/net/ipv6/netfilter/ip6t_ah.c
@@ -122,15 +122,15 @@ static struct ip6t_match ah_match = {
 	.me		= THIS_MODULE,
 };
 
-static int __init init(void)
+static int __init ip6t_ah_init(void)
 {
 	return ip6t_register_match(&ah_match);
 }
 
-static void __exit cleanup(void)
+static void __exit ip6t_ah_fini(void)
 {
 	ip6t_unregister_match(&ah_match);
 }
 
-module_init(init);
-module_exit(cleanup);
+module_init(ip6t_ah_init);
+module_exit(ip6t_ah_fini);
diff --git a/net/ipv6/netfilter/ip6t_dst.c b/net/ipv6/netfilter/ip6t_dst.c
index e97a702..9422413 100644
--- a/net/ipv6/netfilter/ip6t_dst.c
+++ b/net/ipv6/netfilter/ip6t_dst.c
@@ -206,15 +206,15 @@ static struct ip6t_match opts_match = {
 	.me		= THIS_MODULE,
 };
 
-static int __init init(void)
+static int __init ip6t_dst_init(void)
 {
 	return ip6t_register_match(&opts_match);
 }
 
-static void __exit cleanup(void)
+static void __exit ip6t_dst_fini(void)
 {
 	ip6t_unregister_match(&opts_match);
 }
 
-module_init(init);
-module_exit(cleanup);
+module_init(ip6t_dst_init);
+module_exit(ip6t_dst_fini);
diff --git a/net/ipv6/netfilter/ip6t_esp.c b/net/ipv6/netfilter/ip6t_esp.c
deleted file mode 100644
index 540b8bf..0000000
--- a/net/ipv6/netfilter/ip6t_esp.c
+++ /dev/null
@@ -1,115 +0,0 @@
-/* Kernel module to match ESP parameters. */
-/* (C) 2001-2002 Andras Kis-Szabo <kisza@sch.bme.hu>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-
-#include <linux/module.h>
-#include <linux/skbuff.h>
-#include <linux/ip.h>
-#include <linux/ipv6.h>
-#include <linux/types.h>
-#include <net/checksum.h>
-#include <net/ipv6.h>
-
-#include <linux/netfilter_ipv6/ip6_tables.h>
-#include <linux/netfilter_ipv6/ip6t_esp.h>
-
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("IPv6 ESP match");
-MODULE_AUTHOR("Andras Kis-Szabo <kisza@sch.bme.hu>");
-
-#if 0
-#define DEBUGP printk
-#else
-#define DEBUGP(format, args...)
-#endif
-
-/* Returns 1 if the spi is matched by the range, 0 otherwise */
-static inline int
-spi_match(u_int32_t min, u_int32_t max, u_int32_t spi, int invert)
-{
-	int r=0;
-	DEBUGP("esp spi_match:%c 0x%x <= 0x%x <= 0x%x",invert? '!':' ',
-	       min,spi,max);
-	r=(spi >= min && spi <= max) ^ invert;
-	DEBUGP(" result %s\n",r? "PASS\n" : "FAILED\n");
-	return r;
-}
-
-static int
-match(const struct sk_buff *skb,
-      const struct net_device *in,
-      const struct net_device *out,
-      const struct xt_match *match,
-      const void *matchinfo,
-      int offset,
-      unsigned int protoff,
-      int *hotdrop)
-{
-	struct ip_esp_hdr _esp, *eh;
-	const struct ip6t_esp *espinfo = matchinfo;
-	unsigned int ptr;
-
-	/* Make sure this isn't an evil packet */
-	/*DEBUGP("ipv6_esp entered \n");*/
-
-	if (ipv6_find_hdr(skb, &ptr, NEXTHDR_ESP, NULL) < 0)
-		return 0;
-
-	eh = skb_header_pointer(skb, ptr, sizeof(_esp), &_esp);
-	if (eh == NULL) {
-		*hotdrop = 1;
-		return 0;
-	}
-
-	DEBUGP("IPv6 ESP SPI %u %08X\n", ntohl(eh->spi), ntohl(eh->spi));
-
-	return (eh != NULL)
-		&& spi_match(espinfo->spis[0], espinfo->spis[1],
-			      ntohl(eh->spi),
-			      !!(espinfo->invflags & IP6T_ESP_INV_SPI));
-}
-
-/* Called when user tries to insert an entry of this type. */
-static int
-checkentry(const char *tablename,
-	   const void *ip,
-	   const struct xt_match *match,
-	   void *matchinfo,
-	   unsigned int matchinfosize,
-	   unsigned int hook_mask)
-{
-	const struct ip6t_esp *espinfo = matchinfo;
-
-	if (espinfo->invflags & ~IP6T_ESP_INV_MASK) {
-		DEBUGP("ip6t_esp: unknown flags %X\n",
-			 espinfo->invflags);
-		return 0;
-	}
-	return 1;
-}
-
-static struct ip6t_match esp_match = {
-	.name		= "esp",
-	.match		= match,
-	.matchsize	= sizeof(struct ip6t_esp),
-	.checkentry	= checkentry,
-	.me		= THIS_MODULE,
-};
-
-static int __init init(void)
-{
-	return ip6t_register_match(&esp_match);
-}
-
-static void __exit cleanup(void)
-{
-	ip6t_unregister_match(&esp_match);
-}
-
-module_init(init);
-module_exit(cleanup);
diff --git a/net/ipv6/netfilter/ip6t_eui64.c b/net/ipv6/netfilter/ip6t_eui64.c
index d4b0bad..94dbdb8 100644
--- a/net/ipv6/netfilter/ip6t_eui64.c
+++ b/net/ipv6/netfilter/ip6t_eui64.c
@@ -70,15 +70,15 @@ static struct ip6t_match eui64_match = {
 	.me		= THIS_MODULE,
 };
 
-static int __init init(void)
+static int __init ip6t_eui64_init(void)
 {
 	return ip6t_register_match(&eui64_match);
 }
 
-static void __exit fini(void)
+static void __exit ip6t_eui64_fini(void)
 {
 	ip6t_unregister_match(&eui64_match);
 }
 
-module_init(init);
-module_exit(fini);
+module_init(ip6t_eui64_init);
+module_exit(ip6t_eui64_fini);
diff --git a/net/ipv6/netfilter/ip6t_frag.c b/net/ipv6/netfilter/ip6t_frag.c
index 4c41e14..06768c8 100644
--- a/net/ipv6/netfilter/ip6t_frag.c
+++ b/net/ipv6/netfilter/ip6t_frag.c
@@ -139,15 +139,15 @@ static struct ip6t_match frag_match = {
 	.me		= THIS_MODULE,
 };
 
-static int __init init(void)
+static int __init ip6t_frag_init(void)
 {
 	return ip6t_register_match(&frag_match);
 }
 
-static void __exit cleanup(void)
+static void __exit ip6t_frag_fini(void)
 {
 	ip6t_unregister_match(&frag_match);
 }
 
-module_init(init);
-module_exit(cleanup);
+module_init(ip6t_frag_init);
+module_exit(ip6t_frag_fini);
diff --git a/net/ipv6/netfilter/ip6t_hbh.c b/net/ipv6/netfilter/ip6t_hbh.c
index b4a1fdf..374f1be 100644
--- a/net/ipv6/netfilter/ip6t_hbh.c
+++ b/net/ipv6/netfilter/ip6t_hbh.c
@@ -206,15 +206,15 @@ static struct ip6t_match opts_match = {
 	.me		= THIS_MODULE,
 };
 
-static int __init init(void)
+static int __init ip6t_hbh_init(void)
 {
 	return ip6t_register_match(&opts_match);
 }
 
-static void __exit cleanup(void)
+static void __exit ip6t_hbh_fini(void)
 {
 	ip6t_unregister_match(&opts_match);
 }
 
-module_init(init);
-module_exit(cleanup);
+module_init(ip6t_hbh_init);
+module_exit(ip6t_hbh_fini);
diff --git a/net/ipv6/netfilter/ip6t_hl.c b/net/ipv6/netfilter/ip6t_hl.c
index 3740557..44a729e 100644
--- a/net/ipv6/netfilter/ip6t_hl.c
+++ b/net/ipv6/netfilter/ip6t_hl.c
@@ -55,16 +55,16 @@ static struct ip6t_match hl_match = {
 	.me		= THIS_MODULE,
 };
 
-static int __init init(void)
+static int __init ip6t_hl_init(void)
 {
 	return ip6t_register_match(&hl_match);
 }
 
-static void __exit fini(void)
+static void __exit ip6t_hl_fini(void)
 {
 	ip6t_unregister_match(&hl_match);
 
 }
 
-module_init(init);
-module_exit(fini);
+module_init(ip6t_hl_init);
+module_exit(ip6t_hl_fini);
diff --git a/net/ipv6/netfilter/ip6t_multiport.c b/net/ipv6/netfilter/ip6t_multiport.c
deleted file mode 100644
index 752b65d..0000000
--- a/net/ipv6/netfilter/ip6t_multiport.c
+++ /dev/null
@@ -1,125 +0,0 @@
-/* Kernel module to match one of a list of TCP/UDP ports: ports are in
-   the same place so we can treat them as equal. */
-
-/* (C) 1999-2001 Paul `Rusty' Russell
- * (C) 2002-2004 Netfilter Core Team <coreteam@netfilter.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/udp.h>
-#include <linux/skbuff.h>
-#include <linux/in.h>
-
-#include <linux/netfilter_ipv6/ip6t_multiport.h>
-#include <linux/netfilter_ipv6/ip6_tables.h>
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Netfilter Core Team <coreteam@netfilter.org>");
-MODULE_DESCRIPTION("ip6tables match for multiple ports");
-
-#if 0
-#define duprintf(format, args...) printk(format , ## args)
-#else
-#define duprintf(format, args...)
-#endif
-
-/* Returns 1 if the port is matched by the test, 0 otherwise. */
-static inline int
-ports_match(const u_int16_t *portlist, enum ip6t_multiport_flags flags,
-	    u_int8_t count, u_int16_t src, u_int16_t dst)
-{
-	unsigned int i;
-	for (i=0; i<count; i++) {
-		if (flags != IP6T_MULTIPORT_DESTINATION
-		    && portlist[i] == src)
-			return 1;
-
-		if (flags != IP6T_MULTIPORT_SOURCE
-		    && portlist[i] == dst)
-			return 1;
-	}
-
-	return 0;
-}
-
-static int
-match(const struct sk_buff *skb,
-      const struct net_device *in,
-      const struct net_device *out,
-      const struct xt_match *match,
-      const void *matchinfo,
-      int offset,
-      unsigned int protoff,
-      int *hotdrop)
-{
-	u16 _ports[2], *pptr;
-	const struct ip6t_multiport *multiinfo = matchinfo;
-
-	/* Must not be a fragment. */
-	if (offset)
-		return 0;
-
-	/* Must be big enough to read ports (both UDP and TCP have
-	   them at the start). */
-	pptr = skb_header_pointer(skb, protoff, sizeof(_ports), &_ports[0]);
-	if (pptr == NULL) {
-		/* We've been asked to examine this packet, and we
-		 * can't.  Hence, no choice but to drop.
-		 */
-		duprintf("ip6t_multiport:"
-			 " Dropping evil offset=0 tinygram.\n");
-		*hotdrop = 1;
-		return 0;
-	}
-
-	return ports_match(multiinfo->ports,
-			   multiinfo->flags, multiinfo->count,
-			   ntohs(pptr[0]), ntohs(pptr[1]));
-}
-
-/* Called when user tries to insert an entry of this type. */
-static int
-checkentry(const char *tablename,
-	   const void *info,
-	   const struct xt_match *match,
-	   void *matchinfo,
-	   unsigned int matchsize,
-	   unsigned int hook_mask)
-{
-	const struct ip6t_ip6 *ip = info;
-	const struct ip6t_multiport *multiinfo = matchinfo;
-
-	/* Must specify proto == TCP/UDP, no unknown flags or bad count */
-	return (ip->proto == IPPROTO_TCP || ip->proto == IPPROTO_UDP)
-		&& !(ip->invflags & IP6T_INV_PROTO)
-		&& (multiinfo->flags == IP6T_MULTIPORT_SOURCE
-		    || multiinfo->flags == IP6T_MULTIPORT_DESTINATION
-		    || multiinfo->flags == IP6T_MULTIPORT_EITHER)
-		&& multiinfo->count <= IP6T_MULTI_PORTS;
-}
-
-static struct ip6t_match multiport_match = {
-	.name		= "multiport",
-	.match		= match,
-	.matchsize	= sizeof(struct ip6t_multiport),
-	.checkentry	= checkentry,
-	.me		= THIS_MODULE,
-};
-
-static int __init init(void)
-{
-	return ip6t_register_match(&multiport_match);
-}
-
-static void __exit fini(void)
-{
-	ip6t_unregister_match(&multiport_match);
-}
-
-module_init(init);
-module_exit(fini);
diff --git a/net/ipv6/netfilter/ip6t_owner.c b/net/ipv6/netfilter/ip6t_owner.c
index e2cee3b..5d04799 100644
--- a/net/ipv6/netfilter/ip6t_owner.c
+++ b/net/ipv6/netfilter/ip6t_owner.c
@@ -79,15 +79,15 @@ static struct ip6t_match owner_match = {
 	.me		= THIS_MODULE,
 };
 
-static int __init init(void)
+static int __init ip6t_owner_init(void)
 {
 	return ip6t_register_match(&owner_match);
 }
 
-static void __exit fini(void)
+static void __exit ip6t_owner_fini(void)
 {
 	ip6t_unregister_match(&owner_match);
 }
 
-module_init(init);
-module_exit(fini);
+module_init(ip6t_owner_init);
+module_exit(ip6t_owner_fini);
diff --git a/net/ipv6/netfilter/ip6t_rt.c b/net/ipv6/netfilter/ip6t_rt.c
index 4c6b55b..fbb0184 100644
--- a/net/ipv6/netfilter/ip6t_rt.c
+++ b/net/ipv6/netfilter/ip6t_rt.c
@@ -225,15 +225,15 @@ static struct ip6t_match rt_match = {
 	.me		= THIS_MODULE,
 };
 
-static int __init init(void)
+static int __init ip6t_rt_init(void)
 {
 	return ip6t_register_match(&rt_match);
 }
 
-static void __exit cleanup(void)
+static void __exit ip6t_rt_fini(void)
 {
 	ip6t_unregister_match(&rt_match);
 }
 
-module_init(init);
-module_exit(cleanup);
+module_init(ip6t_rt_init);
+module_exit(ip6t_rt_fini);
diff --git a/net/ipv6/netfilter/ip6table_filter.c b/net/ipv6/netfilter/ip6table_filter.c
index ce4a968..60976c0 100644
--- a/net/ipv6/netfilter/ip6table_filter.c
+++ b/net/ipv6/netfilter/ip6table_filter.c
@@ -159,7 +159,7 @@ static struct nf_hook_ops ip6t_ops[] = {
 static int forward = NF_ACCEPT;
 module_param(forward, bool, 0000);
 
-static int __init init(void)
+static int __init ip6table_filter_init(void)
 {
 	int ret;
 
@@ -177,39 +177,22 @@ static int __init init(void)
 		return ret;
 
 	/* Register hooks */
-	ret = nf_register_hook(&ip6t_ops[0]);
+	ret = nf_register_hooks(ip6t_ops, ARRAY_SIZE(ip6t_ops));
 	if (ret < 0)
 		goto cleanup_table;
 
-	ret = nf_register_hook(&ip6t_ops[1]);
-	if (ret < 0)
-		goto cleanup_hook0;
-
-	ret = nf_register_hook(&ip6t_ops[2]);
-	if (ret < 0)
-		goto cleanup_hook1;
-
 	return ret;
 
- cleanup_hook1:
-	nf_unregister_hook(&ip6t_ops[1]);
- cleanup_hook0:
-	nf_unregister_hook(&ip6t_ops[0]);
  cleanup_table:
 	ip6t_unregister_table(&packet_filter);
-
 	return ret;
 }
 
-static void __exit fini(void)
+static void __exit ip6table_filter_fini(void)
 {
-	unsigned int i;
-
-	for (i = 0; i < sizeof(ip6t_ops)/sizeof(struct nf_hook_ops); i++)
-		nf_unregister_hook(&ip6t_ops[i]);
-
+	nf_unregister_hooks(ip6t_ops, ARRAY_SIZE(ip6t_ops));
 	ip6t_unregister_table(&packet_filter);
 }
 
-module_init(init);
-module_exit(fini);
+module_init(ip6table_filter_init);
+module_exit(ip6table_filter_fini);
diff --git a/net/ipv6/netfilter/ip6table_mangle.c b/net/ipv6/netfilter/ip6table_mangle.c
index 30a4627..03a13ea 100644
--- a/net/ipv6/netfilter/ip6table_mangle.c
+++ b/net/ipv6/netfilter/ip6table_mangle.c
@@ -228,7 +228,7 @@ static struct nf_hook_ops ip6t_ops[] = {
 	},
 };
 
-static int __init init(void)
+static int __init ip6table_mangle_init(void)
 {
 	int ret;
 
@@ -238,51 +238,22 @@ static int __init init(void)
 		return ret;
 
 	/* Register hooks */
-	ret = nf_register_hook(&ip6t_ops[0]);
+	ret = nf_register_hooks(ip6t_ops, ARRAY_SIZE(ip6t_ops));
 	if (ret < 0)
 		goto cleanup_table;
 
-	ret = nf_register_hook(&ip6t_ops[1]);
-	if (ret < 0)
-		goto cleanup_hook0;
-
-	ret = nf_register_hook(&ip6t_ops[2]);
-	if (ret < 0)
-		goto cleanup_hook1;
-
-	ret = nf_register_hook(&ip6t_ops[3]);
-	if (ret < 0)
-		goto cleanup_hook2;
-
-	ret = nf_register_hook(&ip6t_ops[4]);
-	if (ret < 0)
-		goto cleanup_hook3;
-
 	return ret;
 
- cleanup_hook3:
-        nf_unregister_hook(&ip6t_ops[3]);
- cleanup_hook2:
-	nf_unregister_hook(&ip6t_ops[2]);
- cleanup_hook1:
-	nf_unregister_hook(&ip6t_ops[1]);
- cleanup_hook0:
-	nf_unregister_hook(&ip6t_ops[0]);
  cleanup_table:
 	ip6t_unregister_table(&packet_mangler);
-
 	return ret;
 }
 
-static void __exit fini(void)
+static void __exit ip6table_mangle_fini(void)
 {
-	unsigned int i;
-
-	for (i = 0; i < sizeof(ip6t_ops)/sizeof(struct nf_hook_ops); i++)
-		nf_unregister_hook(&ip6t_ops[i]);
-
+	nf_unregister_hooks(ip6t_ops, ARRAY_SIZE(ip6t_ops));
 	ip6t_unregister_table(&packet_mangler);
 }
 
-module_init(init);
-module_exit(fini);
+module_init(ip6table_mangle_init);
+module_exit(ip6table_mangle_fini);
diff --git a/net/ipv6/netfilter/ip6table_raw.c b/net/ipv6/netfilter/ip6table_raw.c
index db28ba3..61a7c58 100644
--- a/net/ipv6/netfilter/ip6table_raw.c
+++ b/net/ipv6/netfilter/ip6table_raw.c
@@ -142,7 +142,7 @@ static struct nf_hook_ops ip6t_ops[] = {
 	},
 };
 
-static int __init init(void)
+static int __init ip6table_raw_init(void)
 {
 	int ret;
 
@@ -152,34 +152,23 @@ static int __init init(void)
 		return ret;
 
 	/* Register hooks */
-	ret = nf_register_hook(&ip6t_ops[0]);
+	ret = nf_register_hooks(ip6t_ops, ARRAY_SIZE(ip6t_ops));
 	if (ret < 0)
 		goto cleanup_table;
 
-	ret = nf_register_hook(&ip6t_ops[1]);
-	if (ret < 0)
-		goto cleanup_hook0;
-
 	return ret;
 
- cleanup_hook0:
-	nf_unregister_hook(&ip6t_ops[0]);
  cleanup_table:
 	ip6t_unregister_table(&packet_raw);
-
 	return ret;
 }
 
-static void __exit fini(void)
+static void __exit ip6table_raw_fini(void)
 {
-	unsigned int i;
-
-	for (i = 0; i < sizeof(ip6t_ops)/sizeof(struct nf_hook_ops); i++)
-		nf_unregister_hook(&ip6t_ops[i]);
-
+	nf_unregister_hooks(ip6t_ops, ARRAY_SIZE(ip6t_ops));
 	ip6t_unregister_table(&packet_raw);
 }
 
-module_init(init);
-module_exit(fini);
+module_init(ip6table_raw_init);
+module_exit(ip6table_raw_fini);
 MODULE_LICENSE("GPL");
diff --git a/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c b/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
index c16f629..93bae36 100644
--- a/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
+++ b/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
@@ -286,55 +286,49 @@ static unsigned int ipv6_conntrack_local(unsigned int hooknum,
 	return ipv6_conntrack_in(hooknum, pskb, in, out, okfn);
 }
 
-/* Connection tracking may drop packets, but never alters them, so
-   make it the first hook. */
-static struct nf_hook_ops ipv6_conntrack_defrag_ops = {
-	.hook		= ipv6_defrag,
-	.owner		= THIS_MODULE,
-	.pf		= PF_INET6,
-	.hooknum	= NF_IP6_PRE_ROUTING,
-	.priority	= NF_IP6_PRI_CONNTRACK_DEFRAG,
-};
-
-static struct nf_hook_ops ipv6_conntrack_in_ops = {
-	.hook		= ipv6_conntrack_in,
-	.owner		= THIS_MODULE,
-	.pf		= PF_INET6,
-	.hooknum	= NF_IP6_PRE_ROUTING,
-	.priority	= NF_IP6_PRI_CONNTRACK,
-};
-
-static struct nf_hook_ops ipv6_conntrack_local_out_ops = {
-	.hook		= ipv6_conntrack_local,
-	.owner		= THIS_MODULE,
-	.pf		= PF_INET6,
-	.hooknum	= NF_IP6_LOCAL_OUT,
-	.priority	= NF_IP6_PRI_CONNTRACK,
-};
-
-static struct nf_hook_ops ipv6_conntrack_defrag_local_out_ops = {
-	.hook		= ipv6_defrag,
-	.owner		= THIS_MODULE,
-	.pf		= PF_INET6,
-	.hooknum	= NF_IP6_LOCAL_OUT,
-	.priority	= NF_IP6_PRI_CONNTRACK_DEFRAG,
-};
-
-/* Refragmenter; last chance. */
-static struct nf_hook_ops ipv6_conntrack_out_ops = {
-	.hook		= ipv6_confirm,
-	.owner		= THIS_MODULE,
-	.pf		= PF_INET6,
-	.hooknum	= NF_IP6_POST_ROUTING,
-	.priority	= NF_IP6_PRI_LAST,
-};
-
-static struct nf_hook_ops ipv6_conntrack_local_in_ops = {
-	.hook		= ipv6_confirm,
-	.owner		= THIS_MODULE,
-	.pf		= PF_INET6,
-	.hooknum	= NF_IP6_LOCAL_IN,
-	.priority	= NF_IP6_PRI_LAST-1,
+static struct nf_hook_ops ipv6_conntrack_ops[] = {
+	{
+		.hook		= ipv6_defrag,
+		.owner		= THIS_MODULE,
+		.pf		= PF_INET6,
+		.hooknum	= NF_IP6_PRE_ROUTING,
+		.priority	= NF_IP6_PRI_CONNTRACK_DEFRAG,
+	},
+	{
+		.hook		= ipv6_conntrack_in,
+		.owner		= THIS_MODULE,
+		.pf		= PF_INET6,
+		.hooknum	= NF_IP6_PRE_ROUTING,
+		.priority	= NF_IP6_PRI_CONNTRACK,
+	},
+	{
+		.hook		= ipv6_conntrack_local,
+		.owner		= THIS_MODULE,
+		.pf		= PF_INET6,
+		.hooknum	= NF_IP6_LOCAL_OUT,
+		.priority	= NF_IP6_PRI_CONNTRACK,
+	},
+	{
+		.hook		= ipv6_defrag,
+		.owner		= THIS_MODULE,
+		.pf		= PF_INET6,
+		.hooknum	= NF_IP6_LOCAL_OUT,
+		.priority	= NF_IP6_PRI_CONNTRACK_DEFRAG,
+	},
+	{
+		.hook		= ipv6_confirm,
+		.owner		= THIS_MODULE,
+		.pf		= PF_INET6,
+		.hooknum	= NF_IP6_POST_ROUTING,
+		.priority	= NF_IP6_PRI_LAST,
+	},
+	{
+		.hook		= ipv6_confirm,
+		.owner		= THIS_MODULE,
+		.pf		= PF_INET6,
+		.hooknum	= NF_IP6_LOCAL_IN,
+		.priority	= NF_IP6_PRI_LAST-1,
+	},
 };
 
 #ifdef CONFIG_SYSCTL
@@ -470,16 +464,21 @@ extern struct nf_conntrack_protocol nf_conntrack_protocol_udp6;
 extern struct nf_conntrack_protocol nf_conntrack_protocol_icmpv6;
 extern int nf_ct_frag6_init(void);
 extern void nf_ct_frag6_cleanup(void);
-static int init_or_cleanup(int init)
+
+MODULE_ALIAS("nf_conntrack-" __stringify(AF_INET6));
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Yasuyuki KOZAKAI @USAGI <yasuyuki.kozakai@toshiba.co.jp>");
+
+static int __init nf_conntrack_l3proto_ipv6_init(void)
 {
 	int ret = 0;
 
-	if (!init) goto cleanup;
+	need_conntrack();
 
 	ret = nf_ct_frag6_init();
 	if (ret < 0) {
 		printk("nf_conntrack_ipv6: can't initialize frag6.\n");
-		goto cleanup_nothing;
+		return ret;
 	}
 	ret = nf_conntrack_protocol_register(&nf_conntrack_protocol_tcp6);
 	if (ret < 0) {
@@ -505,71 +504,27 @@ static int init_or_cleanup(int init)
 		goto cleanup_icmpv6;
 	}
 
-	ret = nf_register_hook(&ipv6_conntrack_defrag_ops);
+	ret = nf_register_hooks(ipv6_conntrack_ops,
+				ARRAY_SIZE(ipv6_conntrack_ops));
 	if (ret < 0) {
 		printk("nf_conntrack_ipv6: can't register pre-routing defrag "
 		       "hook.\n");
 		goto cleanup_ipv6;
 	}
-
-	ret = nf_register_hook(&ipv6_conntrack_defrag_local_out_ops);
-	if (ret < 0) {
-		printk("nf_conntrack_ipv6: can't register local_out defrag "
-		       "hook.\n");
-		goto cleanup_defragops;
-	}
-
-	ret = nf_register_hook(&ipv6_conntrack_in_ops);
-	if (ret < 0) {
-		printk("nf_conntrack_ipv6: can't register pre-routing hook.\n");
-		goto cleanup_defraglocalops;
-	}
-
-	ret = nf_register_hook(&ipv6_conntrack_local_out_ops);
-	if (ret < 0) {
-		printk("nf_conntrack_ipv6: can't register local out hook.\n");
-		goto cleanup_inops;
-	}
-
-	ret = nf_register_hook(&ipv6_conntrack_out_ops);
-	if (ret < 0) {
-		printk("nf_conntrack_ipv6: can't register post-routing hook.\n");
-		goto cleanup_inandlocalops;
-	}
-
-	ret = nf_register_hook(&ipv6_conntrack_local_in_ops);
-	if (ret < 0) {
-		printk("nf_conntrack_ipv6: can't register local in hook.\n");
-		goto cleanup_inoutandlocalops;
-	}
-
 #ifdef CONFIG_SYSCTL
 	nf_ct_ipv6_sysctl_header = register_sysctl_table(nf_ct_net_table, 0);
 	if (nf_ct_ipv6_sysctl_header == NULL) {
 		printk("nf_conntrack: can't register to sysctl.\n");
 		ret = -ENOMEM;
-		goto cleanup_localinops;
+		goto cleanup_hooks;
 	}
 #endif
 	return ret;
 
- cleanup:
-	synchronize_net();
 #ifdef CONFIG_SYSCTL
- 	unregister_sysctl_table(nf_ct_ipv6_sysctl_header);
- cleanup_localinops:
+ cleanup_hooks:
+	nf_unregister_hooks(ipv6_conntrack_ops, ARRAY_SIZE(ipv6_conntrack_ops));
 #endif
-	nf_unregister_hook(&ipv6_conntrack_local_in_ops);
- cleanup_inoutandlocalops:
-	nf_unregister_hook(&ipv6_conntrack_out_ops);
- cleanup_inandlocalops:
-	nf_unregister_hook(&ipv6_conntrack_local_out_ops);
- cleanup_inops:
-	nf_unregister_hook(&ipv6_conntrack_in_ops);
- cleanup_defraglocalops:
-	nf_unregister_hook(&ipv6_conntrack_defrag_local_out_ops);
- cleanup_defragops:
-	nf_unregister_hook(&ipv6_conntrack_defrag_ops);
  cleanup_ipv6:
 	nf_conntrack_l3proto_unregister(&nf_conntrack_l3proto_ipv6);
  cleanup_icmpv6:
@@ -580,24 +535,22 @@ static int init_or_cleanup(int init)
 	nf_conntrack_protocol_unregister(&nf_conntrack_protocol_tcp6);
  cleanup_frag6:
 	nf_ct_frag6_cleanup();
- cleanup_nothing:
 	return ret;
 }
 
-MODULE_ALIAS("nf_conntrack-" __stringify(AF_INET6));
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Yasuyuki KOZAKAI @USAGI <yasuyuki.kozakai@toshiba.co.jp>");
-
-static int __init init(void)
-{
-	need_conntrack();
-	return init_or_cleanup(1);
-}
-
-static void __exit fini(void)
+static void __exit nf_conntrack_l3proto_ipv6_fini(void)
 {
-	init_or_cleanup(0);
+	synchronize_net();
+#ifdef CONFIG_SYSCTL
+ 	unregister_sysctl_table(nf_ct_ipv6_sysctl_header);
+#endif
+	nf_unregister_hooks(ipv6_conntrack_ops, ARRAY_SIZE(ipv6_conntrack_ops));
+	nf_conntrack_l3proto_unregister(&nf_conntrack_l3proto_ipv6);
+	nf_conntrack_protocol_unregister(&nf_conntrack_protocol_icmpv6);
+	nf_conntrack_protocol_unregister(&nf_conntrack_protocol_udp6);
+	nf_conntrack_protocol_unregister(&nf_conntrack_protocol_tcp6);
+	nf_ct_frag6_cleanup();
 }
 
-module_init(init);
-module_exit(fini);
+module_init(nf_conntrack_l3proto_ipv6_init);
+module_exit(nf_conntrack_l3proto_ipv6_fini);
diff --git a/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c b/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c
index 09945c3..86c6703 100644
--- a/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c
+++ b/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c
@@ -233,21 +233,13 @@ icmpv6_error(struct sk_buff *skb, unsigned int dataoff,
 		return -NF_ACCEPT;
 	}
 
-	if (hooknum != NF_IP6_PRE_ROUTING)
-		goto skipped;
-
-	/* Ignore it if the checksum's bogus. */
-	if (csum_ipv6_magic(&skb->nh.ipv6h->saddr, &skb->nh.ipv6h->daddr,
-			    skb->len - dataoff, IPPROTO_ICMPV6,
-			    skb_checksum(skb, dataoff,
-					 skb->len - dataoff, 0))) {
+	if (hooknum == NF_IP6_PRE_ROUTING &&
+	    nf_ip6_checksum(skb, hooknum, dataoff, IPPROTO_ICMPV6)) {
 		nf_log_packet(PF_INET6, 0, skb, NULL, NULL, NULL,
 			      "nf_ct_icmpv6: ICMPv6 checksum failed\n");
 		return -NF_ACCEPT;
 	}
 
-skipped:
-
 	/* is not error message ? */
 	if (icmp6h->icmp6_type >= 128)
 		return NF_ACCEPT;
diff --git a/net/ipv6/proc.c b/net/ipv6/proc.c
index 4238b1e..779ddf7 100644
--- a/net/ipv6/proc.c
+++ b/net/ipv6/proc.c
@@ -38,7 +38,7 @@ static int fold_prot_inuse(struct proto *proto)
 	int res = 0;
 	int cpu;
 
-	for_each_cpu(cpu)
+	for_each_possible_cpu(cpu)
 		res += proto->stats[cpu].inuse;
 
 	return res;
@@ -140,7 +140,7 @@ fold_field(void *mib[], int offt)
         unsigned long res = 0;
         int i;
  
-        for_each_cpu(i) {
+        for_each_possible_cpu(i) {
                 res += *(((unsigned long *)per_cpu_ptr(mib[0], i)) + offt);
                 res += *(((unsigned long *)per_cpu_ptr(mib[1], i)) + offt);
         }
diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c
index b67a45f..eef985e 100644
--- a/net/ipv6/reassembly.c
+++ b/net/ipv6/reassembly.c
@@ -121,6 +121,10 @@ static __inline__ void fq_unlink(struct frag_queue *fq)
 	write_unlock(&ip6_frag_lock);
 }
 
+/*
+ * callers should be careful not to use the hash value outside the ipfrag_lock
+ * as doing so could race with ipfrag_hash_rnd being recalculated.
+ */
 static unsigned int ip6qhashfn(u32 id, struct in6_addr *saddr,
 			       struct in6_addr *daddr)
 {
@@ -324,15 +328,16 @@ out:
 /* Creation primitives. */
 
 
-static struct frag_queue *ip6_frag_intern(unsigned int hash,
-					  struct frag_queue *fq_in)
+static struct frag_queue *ip6_frag_intern(struct frag_queue *fq_in)
 {
 	struct frag_queue *fq;
+	unsigned int hash;
 #ifdef CONFIG_SMP
 	struct hlist_node *n;
 #endif
 
 	write_lock(&ip6_frag_lock);
+	hash = ip6qhashfn(fq_in->id, &fq_in->saddr, &fq_in->daddr);
 #ifdef CONFIG_SMP
 	hlist_for_each_entry(fq, n, &ip6_frag_hash[hash], list) {
 		if (fq->id == fq_in->id && 
@@ -362,7 +367,7 @@ static struct frag_queue *ip6_frag_intern(unsigned int hash,
 
 
 static struct frag_queue *
-ip6_frag_create(unsigned int hash, u32 id, struct in6_addr *src, struct in6_addr *dst)
+ip6_frag_create(u32 id, struct in6_addr *src, struct in6_addr *dst)
 {
 	struct frag_queue *fq;
 
@@ -379,7 +384,7 @@ ip6_frag_create(unsigned int hash, u32 id, struct in6_addr *src, struct in6_addr
 	spin_lock_init(&fq->lock);
 	atomic_set(&fq->refcnt, 1);
 
-	return ip6_frag_intern(hash, fq);
+	return ip6_frag_intern(fq);
 
 oom:
 	IP6_INC_STATS_BH(IPSTATS_MIB_REASMFAILS);
@@ -391,9 +396,10 @@ fq_find(u32 id, struct in6_addr *src, struct in6_addr *dst)
 {
 	struct frag_queue *fq;
 	struct hlist_node *n;
-	unsigned int hash = ip6qhashfn(id, src, dst);
+	unsigned int hash;
 
 	read_lock(&ip6_frag_lock);
+	hash = ip6qhashfn(id, src, dst);
 	hlist_for_each_entry(fq, n, &ip6_frag_hash[hash], list) {
 		if (fq->id == id && 
 		    ipv6_addr_equal(src, &fq->saddr) &&
@@ -405,7 +411,7 @@ fq_find(u32 id, struct in6_addr *src, struct in6_addr *dst)
 	}
 	read_unlock(&ip6_frag_lock);
 
-	return ip6_frag_create(hash, id, src, dst);
+	return ip6_frag_create(id, src, dst);
 }
 
 
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index c2d3e17..6578c30 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -397,7 +397,7 @@ static int ipip6_rcv(struct sk_buff *skb)
 		return 0;
 	}
 
-	icmp_send(skb, ICMP_DEST_UNREACH, ICMP_PROT_UNREACH, 0);
+	icmp_send(skb, ICMP_DEST_UNREACH, ICMP_PORT_UNREACH, 0);
 	kfree_skb(skb);
 	read_unlock(&ipip6_lock);
 out:
diff --git a/net/ipv6/tunnel6.c b/net/ipv6/tunnel6.c
new file mode 100644
index 0000000..0ef9a35
--- /dev/null
+++ b/net/ipv6/tunnel6.c
@@ -0,0 +1,139 @@
+/*
+ * Copyright (C)2003,2004 USAGI/WIDE Project
+ *
+ * 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.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * Authors	Mitsuru KANDA  <mk@linux-ipv6.org>
+ * 		YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
+ */
+
+#include <linux/icmpv6.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/netdevice.h>
+#include <linux/skbuff.h>
+#include <net/ipv6.h>
+#include <net/protocol.h>
+#include <net/xfrm.h>
+
+static struct xfrm6_tunnel *tunnel6_handlers;
+static DEFINE_MUTEX(tunnel6_mutex);
+
+int xfrm6_tunnel_register(struct xfrm6_tunnel *handler)
+{
+	struct xfrm6_tunnel **pprev;
+	int ret = -EEXIST;
+	int priority = handler->priority;
+
+	mutex_lock(&tunnel6_mutex);
+
+	for (pprev = &tunnel6_handlers; *pprev; pprev = &(*pprev)->next) {
+		if ((*pprev)->priority > priority)
+			break;
+		if ((*pprev)->priority == priority)
+			goto err;
+	}
+
+	handler->next = *pprev;
+	*pprev = handler;
+
+	ret = 0;
+
+err:
+	mutex_unlock(&tunnel6_mutex);
+
+	return ret;
+}
+
+EXPORT_SYMBOL(xfrm6_tunnel_register);
+
+int xfrm6_tunnel_deregister(struct xfrm6_tunnel *handler)
+{
+	struct xfrm6_tunnel **pprev;
+	int ret = -ENOENT;
+
+	mutex_lock(&tunnel6_mutex);
+
+	for (pprev = &tunnel6_handlers; *pprev; pprev = &(*pprev)->next) {
+		if (*pprev == handler) {
+			*pprev = handler->next;
+			ret = 0;
+			break;
+		}
+	}
+
+	mutex_unlock(&tunnel6_mutex);
+
+	synchronize_net();
+
+	return ret;
+}
+
+EXPORT_SYMBOL(xfrm6_tunnel_deregister);
+
+static int tunnel6_rcv(struct sk_buff **pskb)
+{
+	struct sk_buff *skb = *pskb;
+	struct xfrm6_tunnel *handler;
+
+	if (!pskb_may_pull(skb, sizeof(struct ipv6hdr)))
+		goto drop;
+
+	for (handler = tunnel6_handlers; handler; handler = handler->next)
+		if (!handler->handler(skb))
+			return 0;
+
+	icmpv6_send(skb, ICMPV6_DEST_UNREACH, ICMPV6_PORT_UNREACH, 0, skb->dev);
+
+drop:
+	kfree_skb(skb);
+	return 0;
+}
+
+static void tunnel6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
+			int type, int code, int offset, __u32 info)
+{
+	struct xfrm6_tunnel *handler;
+
+	for (handler = tunnel6_handlers; handler; handler = handler->next)
+		if (!handler->err_handler(skb, opt, type, code, offset, info))
+			break;
+}
+
+static struct inet6_protocol tunnel6_protocol = {
+	.handler	= tunnel6_rcv,
+	.err_handler	= tunnel6_err,
+	.flags          = INET6_PROTO_NOPOLICY|INET6_PROTO_FINAL,
+};
+
+static int __init tunnel6_init(void)
+{
+	if (inet6_add_protocol(&tunnel6_protocol, IPPROTO_IPV6)) {
+		printk(KERN_ERR "tunnel6 init(): can't add protocol\n");
+		return -EAGAIN;
+	}
+	return 0;
+}
+
+static void __exit tunnel6_fini(void)
+{
+	if (inet6_del_protocol(&tunnel6_protocol, IPPROTO_IPV6))
+		printk(KERN_ERR "tunnel6 close: can't remove protocol\n");
+}
+
+module_init(tunnel6_init);
+module_exit(tunnel6_fini);
+MODULE_LICENSE("GPL");
diff --git a/net/ipv6/xfrm6_input.c b/net/ipv6/xfrm6_input.c
index 1ca2da6..00cfdee 100644
--- a/net/ipv6/xfrm6_input.c
+++ b/net/ipv6/xfrm6_input.c
@@ -28,12 +28,11 @@ static inline void ipip6_ecn_decapsulate(struct sk_buff *skb)
 		IP6_ECN_set_ce(inner_iph);
 }
 
-int xfrm6_rcv_spi(struct sk_buff **pskb, u32 spi)
+int xfrm6_rcv_spi(struct sk_buff *skb, u32 spi)
 {
-	struct sk_buff *skb = *pskb;
 	int err;
 	u32 seq;
-	struct sec_decap_state xfrm_vec[XFRM_MAX_DEPTH];
+	struct xfrm_state *xfrm_vec[XFRM_MAX_DEPTH];
 	struct xfrm_state *x;
 	int xfrm_nr = 0;
 	int decaps = 0;
@@ -66,7 +65,7 @@ int xfrm6_rcv_spi(struct sk_buff **pskb, u32 spi)
 		if (xfrm_state_check_expire(x))
 			goto drop_unlock;
 
-		nexthdr = x->type->input(x, &(xfrm_vec[xfrm_nr].decap), skb);
+		nexthdr = x->type->input(x, skb);
 		if (nexthdr <= 0)
 			goto drop_unlock;
 
@@ -80,7 +79,7 @@ int xfrm6_rcv_spi(struct sk_buff **pskb, u32 spi)
 
 		spin_unlock(&x->lock);
 
-		xfrm_vec[xfrm_nr++].xvec = x;
+		xfrm_vec[xfrm_nr++] = x;
 
 		if (x->props.mode) { /* XXX */
 			if (nexthdr != IPPROTO_IPV6)
@@ -119,7 +118,8 @@ int xfrm6_rcv_spi(struct sk_buff **pskb, u32 spi)
 	if (xfrm_nr + skb->sp->len > XFRM_MAX_DEPTH)
 		goto drop;
 
-	memcpy(skb->sp->x+skb->sp->len, xfrm_vec, xfrm_nr*sizeof(struct sec_decap_state));
+	memcpy(skb->sp->xvec + skb->sp->len, xfrm_vec,
+	       xfrm_nr * sizeof(xfrm_vec[0]));
 	skb->sp->len += xfrm_nr;
 	skb->ip_summed = CHECKSUM_NONE;
 
@@ -150,7 +150,7 @@ drop_unlock:
 	xfrm_state_put(x);
 drop:
 	while (--xfrm_nr >= 0)
-		xfrm_state_put(xfrm_vec[xfrm_nr].xvec);
+		xfrm_state_put(xfrm_vec[xfrm_nr]);
 	kfree_skb(skb);
 	return -1;
 }
@@ -159,5 +159,5 @@ EXPORT_SYMBOL(xfrm6_rcv_spi);
 
 int xfrm6_rcv(struct sk_buff **pskb)
 {
-	return xfrm6_rcv_spi(pskb, 0);
+	return xfrm6_rcv_spi(*pskb, 0);
 }
diff --git a/net/ipv6/xfrm6_tunnel.c b/net/ipv6/xfrm6_tunnel.c
index 08f9abb..d37768e 100644
--- a/net/ipv6/xfrm6_tunnel.c
+++ b/net/ipv6/xfrm6_tunnel.c
@@ -28,7 +28,6 @@
 #include <net/ip.h>
 #include <net/xfrm.h>
 #include <net/ipv6.h>
-#include <net/protocol.h>
 #include <linux/ipv6.h>
 #include <linux/icmpv6.h>
 #include <linux/mutex.h>
@@ -352,76 +351,23 @@ static int xfrm6_tunnel_output(struct xfrm_state *x, struct sk_buff *skb)
 	return 0;
 }
 
-static int xfrm6_tunnel_input(struct xfrm_state *x, struct xfrm_decap_state *decap, struct sk_buff *skb)
+static int xfrm6_tunnel_input(struct xfrm_state *x, struct sk_buff *skb)
 {
 	return 0;
 }
 
-static struct xfrm6_tunnel *xfrm6_tunnel_handler;
-static DEFINE_MUTEX(xfrm6_tunnel_mutex);
-
-int xfrm6_tunnel_register(struct xfrm6_tunnel *handler)
+static int xfrm6_tunnel_rcv(struct sk_buff *skb)
 {
-	int ret;
-
-	mutex_lock(&xfrm6_tunnel_mutex);
-	ret = 0;
-	if (xfrm6_tunnel_handler != NULL)
-		ret = -EINVAL;
-	if (!ret)
-		xfrm6_tunnel_handler = handler;
-	mutex_unlock(&xfrm6_tunnel_mutex);
-
-	return ret;
-}
-
-EXPORT_SYMBOL(xfrm6_tunnel_register);
-
-int xfrm6_tunnel_deregister(struct xfrm6_tunnel *handler)
-{
-	int ret;
-
-	mutex_lock(&xfrm6_tunnel_mutex);
-	ret = 0;
-	if (xfrm6_tunnel_handler != handler)
-		ret = -EINVAL;
-	if (!ret)
-		xfrm6_tunnel_handler = NULL;
-	mutex_unlock(&xfrm6_tunnel_mutex);
-
-	synchronize_net();
-
-	return ret;
-}
-
-EXPORT_SYMBOL(xfrm6_tunnel_deregister);
-
-static int xfrm6_tunnel_rcv(struct sk_buff **pskb)
-{
-	struct sk_buff *skb = *pskb;
-	struct xfrm6_tunnel *handler = xfrm6_tunnel_handler;
 	struct ipv6hdr *iph = skb->nh.ipv6h;
 	u32 spi;
 
-	/* device-like_ip6ip6_handler() */
-	if (handler && handler->handler(pskb) == 0)
-		return 0;
-
 	spi = xfrm6_tunnel_spi_lookup((xfrm_address_t *)&iph->saddr);
-	return xfrm6_rcv_spi(pskb, spi);
+	return xfrm6_rcv_spi(skb, spi);
 }
 
-static void xfrm6_tunnel_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
-			     int type, int code, int offset, __u32 info)
+static int xfrm6_tunnel_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
+			    int type, int code, int offset, __u32 info)
 {
-	struct xfrm6_tunnel *handler = xfrm6_tunnel_handler;
-
-	/* call here first for device-like ip6ip6 err handling */
-	if (handler) {
-		handler->err_handler(skb, opt, type, code, offset, info);
-		return;
-	}
-
 	/* xfrm6_tunnel native err handling */
 	switch (type) {
 	case ICMPV6_DEST_UNREACH: 
@@ -462,7 +408,8 @@ static void xfrm6_tunnel_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
 	default:
 		break;
 	}
-	return;
+
+	return 0;
 }
 
 static int xfrm6_tunnel_init_state(struct xfrm_state *x)
@@ -493,10 +440,10 @@ static struct xfrm_type xfrm6_tunnel_type = {
 	.output		= xfrm6_tunnel_output,
 };
 
-static struct inet6_protocol xfrm6_tunnel_protocol = {
+static struct xfrm6_tunnel xfrm6_tunnel_handler = {
 	.handler	= xfrm6_tunnel_rcv,
-	.err_handler	= xfrm6_tunnel_err, 
-	.flags          = INET6_PROTO_NOPOLICY|INET6_PROTO_FINAL,
+	.err_handler	= xfrm6_tunnel_err,
+	.priority	= 2,
 };
 
 static int __init xfrm6_tunnel_init(void)
@@ -508,16 +455,16 @@ static int __init xfrm6_tunnel_init(void)
 			   "xfrm6_tunnel init: can't add xfrm type\n");
 		return -EAGAIN;
 	}
-	if (inet6_add_protocol(&xfrm6_tunnel_protocol, IPPROTO_IPV6) < 0) {
+	if (xfrm6_tunnel_register(&xfrm6_tunnel_handler)) {
 		X6TPRINTK1(KERN_ERR
-			   "xfrm6_tunnel init(): can't add protocol\n");
+			   "xfrm6_tunnel init(): can't add handler\n");
 		xfrm_unregister_type(&xfrm6_tunnel_type, AF_INET6);
 		return -EAGAIN;
 	}
 	if (xfrm6_tunnel_spi_init() < 0) {
 		X6TPRINTK1(KERN_ERR
 			   "xfrm6_tunnel init: failed to initialize spi\n");
-		inet6_del_protocol(&xfrm6_tunnel_protocol, IPPROTO_IPV6);
+		xfrm6_tunnel_deregister(&xfrm6_tunnel_handler);
 		xfrm_unregister_type(&xfrm6_tunnel_type, AF_INET6);
 		return -EAGAIN;
 	}
@@ -529,9 +476,9 @@ static void __exit xfrm6_tunnel_fini(void)
 	X6TPRINTK3(KERN_DEBUG "%s()\n", __FUNCTION__);
 
 	xfrm6_tunnel_spi_fini();
-	if (inet6_del_protocol(&xfrm6_tunnel_protocol, IPPROTO_IPV6) < 0)
+	if (xfrm6_tunnel_deregister(&xfrm6_tunnel_handler))
 		X6TPRINTK1(KERN_ERR 
-			   "xfrm6_tunnel close: can't remove protocol\n");
+			   "xfrm6_tunnel close: can't remove handler\n");
 	if (xfrm_unregister_type(&xfrm6_tunnel_type, AF_INET6) < 0)
 		X6TPRINTK1(KERN_ERR
 			   "xfrm6_tunnel close: can't remove xfrm type\n");