Merge branch 'linus'

40 files changed, 1291 insertions, 1114 deletions

diff --git a/net/ipv6/Kconfig b/net/ipv6/Kconfig
index ab7a912..e6f83b6 100644
--- a/net/ipv6/Kconfig
+++ b/net/ipv6/Kconfig
@@ -6,8 +6,6 @@
 config IPV6
 	tristate "The IPv6 protocol"
 	default m
-	select CRYPTO if IPV6_PRIVACY
-	select CRYPTO_MD5 if IPV6_PRIVACY
 	---help---
 	  This is complemental support for the IP version 6.
 	  You will still be able to do traditional IPv4 networking as well.
@@ -22,7 +20,7 @@ config IPV6
 	  module will be called ipv6.
 
 config IPV6_PRIVACY
-	bool "IPv6: Privacy Extensions (RFC 3041) support"
+	bool "IPv6: Privacy Extensions support"
 	depends on IPV6
 	---help---
 	  Privacy Extensions for Stateless Address Autoconfiguration in IPv6
@@ -30,6 +28,9 @@ config IPV6_PRIVACY
 	  pseudo-random global-scope unicast address(es) will assigned to
 	  your interface(s).
 	
+	  We use our standard pseudo random algorithm to generate randomized
+	  interface identifier, instead of one described in RFC 3041.
+
 	  By default, kernel do not generate temporary addresses.
 	  To use temporary addresses, do
 	
@@ -37,6 +38,25 @@ config IPV6_PRIVACY
 
 	  See <file:Documentation/networking/ip-sysctl.txt> for details.
 
+config IPV6_ROUTER_PREF
+	bool "IPv6: Router Preference (RFC 4191) support"
+	depends on IPV6
+	---help---
+	  Router Preference is an optional extension to the Router
+	  Advertisement message to improve the ability of hosts
+	  to pick more appropriate router, especially when the hosts
+	  is placed in a multi-homed network.
+
+	  If unsure, say N.
+
+config IPV6_ROUTE_INFO
+	bool "IPv6: Route Information (RFC 4191) support (EXPERIMENTAL)"
+	depends on IPV6_ROUTER_PREF && EXPERIMENTAL
+	---help---
+	  This is experimental support of Route Information.
+
+	  If unsure, say N.
+
 config INET6_AH
 	tristate "IPv6: AH transformation"
 	depends on IPV6
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 19727d9..01c62a0 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -78,8 +78,6 @@
 
 #ifdef CONFIG_IPV6_PRIVACY
 #include <linux/random.h>
-#include <linux/crypto.h>
-#include <linux/scatterlist.h>
 #endif
 
 #include <asm/uaccess.h>
@@ -110,8 +108,6 @@ static int __ipv6_try_regen_rndid(struct inet6_dev *idev, struct in6_addr *tmpad
 static void ipv6_regen_rndid(unsigned long data);
 
 static int desync_factor = MAX_DESYNC_FACTOR * HZ;
-static struct crypto_tfm *md5_tfm;
-static DEFINE_SPINLOCK(md5_tfm_lock);
 #endif
 
 static int ipv6_count_addresses(struct inet6_dev *idev);
@@ -169,6 +165,15 @@ struct ipv6_devconf ipv6_devconf = {
 	.max_desync_factor	= MAX_DESYNC_FACTOR,
 #endif
 	.max_addresses		= IPV6_MAX_ADDRESSES,
+	.accept_ra_defrtr	= 1,
+	.accept_ra_pinfo	= 1,
+#ifdef CONFIG_IPV6_ROUTER_PREF
+	.accept_ra_rtr_pref	= 1,
+	.rtr_probe_interval	= 60 * HZ,
+#ifdef CONFIG_IPV6_ROUTE_INFO
+	.accept_ra_rt_info_max_plen = 0,
+#endif
+#endif
 };
 
 static struct ipv6_devconf ipv6_devconf_dflt = {
@@ -190,6 +195,15 @@ static struct ipv6_devconf ipv6_devconf_dflt = {
 	.max_desync_factor	= MAX_DESYNC_FACTOR,
 #endif
 	.max_addresses		= IPV6_MAX_ADDRESSES,
+	.accept_ra_defrtr	= 1,
+	.accept_ra_pinfo	= 1,
+#ifdef CONFIG_IPV6_ROUTER_PREF
+	.accept_ra_rtr_pref	= 1,
+	.rtr_probe_interval	= 60 * HZ,
+#ifdef CONFIG_IPV6_ROUTE_INFO
+	.accept_ra_rt_info_max_plen = 0,
+#endif
+#endif
 };
 
 /* IPv6 Wildcard Address and Loopback Address defined by RFC2553 */
@@ -327,86 +341,83 @@ static struct inet6_dev * ipv6_add_dev(struct net_device *dev)
 	if (dev->mtu < IPV6_MIN_MTU)
 		return NULL;
 
-	ndev = kmalloc(sizeof(struct inet6_dev), GFP_KERNEL);
+ 	ndev = kzalloc(sizeof(struct inet6_dev), GFP_KERNEL);
 
-	if (ndev) {
-		memset(ndev, 0, sizeof(struct inet6_dev));
+ 	if (ndev == NULL)
+ 		return NULL;
 
-		rwlock_init(&ndev->lock);
-		ndev->dev = dev;
-		memcpy(&ndev->cnf, &ipv6_devconf_dflt, sizeof(ndev->cnf));
-		ndev->cnf.mtu6 = dev->mtu;
-		ndev->cnf.sysctl = NULL;
-		ndev->nd_parms = neigh_parms_alloc(dev, &nd_tbl);
-		if (ndev->nd_parms == NULL) {
-			kfree(ndev);
-			return NULL;
-		}
-		/* We refer to the device */
-		dev_hold(dev);
-
-		if (snmp6_alloc_dev(ndev) < 0) {
-			ADBG((KERN_WARNING
-				"%s(): cannot allocate memory for statistics; dev=%s.\n",
-				__FUNCTION__, dev->name));
-			neigh_parms_release(&nd_tbl, ndev->nd_parms);
-			ndev->dead = 1;
-			in6_dev_finish_destroy(ndev);
-			return NULL;
-		}
+	rwlock_init(&ndev->lock);
+	ndev->dev = dev;
+	memcpy(&ndev->cnf, &ipv6_devconf_dflt, sizeof(ndev->cnf));
+	ndev->cnf.mtu6 = dev->mtu;
+	ndev->cnf.sysctl = NULL;
+	ndev->nd_parms = neigh_parms_alloc(dev, &nd_tbl);
+	if (ndev->nd_parms == NULL) {
+		kfree(ndev);
+		return NULL;
+	}
+	/* We refer to the device */
+	dev_hold(dev);
 
-		if (snmp6_register_dev(ndev) < 0) {
-			ADBG((KERN_WARNING
-				"%s(): cannot create /proc/net/dev_snmp6/%s\n",
-				__FUNCTION__, dev->name));
-			neigh_parms_release(&nd_tbl, ndev->nd_parms);
-			ndev->dead = 1;
-			in6_dev_finish_destroy(ndev);
-			return NULL;
-		}
+	if (snmp6_alloc_dev(ndev) < 0) {
+		ADBG((KERN_WARNING
+			"%s(): cannot allocate memory for statistics; dev=%s.\n",
+			__FUNCTION__, dev->name));
+		neigh_parms_release(&nd_tbl, ndev->nd_parms);
+		ndev->dead = 1;
+		in6_dev_finish_destroy(ndev);
+		return NULL;
+	}
 
-		/* One reference from device.  We must do this before
-		 * we invoke __ipv6_regen_rndid().
-		 */
-		in6_dev_hold(ndev);
+	if (snmp6_register_dev(ndev) < 0) {
+		ADBG((KERN_WARNING
+			"%s(): cannot create /proc/net/dev_snmp6/%s\n",
+			__FUNCTION__, dev->name));
+		neigh_parms_release(&nd_tbl, ndev->nd_parms);
+		ndev->dead = 1;
+		in6_dev_finish_destroy(ndev);
+		return NULL;
+	}
+
+	/* One reference from device.  We must do this before
+	 * we invoke __ipv6_regen_rndid().
+	 */
+	in6_dev_hold(ndev);
 
 #ifdef CONFIG_IPV6_PRIVACY
-		get_random_bytes(ndev->rndid, sizeof(ndev->rndid));
-		get_random_bytes(ndev->entropy, sizeof(ndev->entropy));
-		init_timer(&ndev->regen_timer);
-		ndev->regen_timer.function = ipv6_regen_rndid;
-		ndev->regen_timer.data = (unsigned long) ndev;
-		if ((dev->flags&IFF_LOOPBACK) ||
-		    dev->type == ARPHRD_TUNNEL ||
-		    dev->type == ARPHRD_NONE ||
-		    dev->type == ARPHRD_SIT) {
-			printk(KERN_INFO
-			       "%s: Disabled Privacy Extensions\n",
-			       dev->name);
-			ndev->cnf.use_tempaddr = -1;
-		} else {
-			in6_dev_hold(ndev);
-			ipv6_regen_rndid((unsigned long) ndev);
-		}
+	init_timer(&ndev->regen_timer);
+	ndev->regen_timer.function = ipv6_regen_rndid;
+	ndev->regen_timer.data = (unsigned long) ndev;
+	if ((dev->flags&IFF_LOOPBACK) ||
+	    dev->type == ARPHRD_TUNNEL ||
+	    dev->type == ARPHRD_NONE ||
+	    dev->type == ARPHRD_SIT) {
+		printk(KERN_INFO
+		       "%s: Disabled Privacy Extensions\n",
+		       dev->name);
+		ndev->cnf.use_tempaddr = -1;
+	} else {
+		in6_dev_hold(ndev);
+		ipv6_regen_rndid((unsigned long) ndev);
+	}
 #endif
 
-		if (netif_carrier_ok(dev))
-			ndev->if_flags |= IF_READY;
+	if (netif_carrier_ok(dev))
+		ndev->if_flags |= IF_READY;
 
-		write_lock_bh(&addrconf_lock);
-		dev->ip6_ptr = ndev;
-		write_unlock_bh(&addrconf_lock);
+	write_lock_bh(&addrconf_lock);
+	dev->ip6_ptr = ndev;
+	write_unlock_bh(&addrconf_lock);
 
-		ipv6_mc_init_dev(ndev);
-		ndev->tstamp = jiffies;
+	ipv6_mc_init_dev(ndev);
+	ndev->tstamp = jiffies;
 #ifdef CONFIG_SYSCTL
-		neigh_sysctl_register(dev, ndev->nd_parms, NET_IPV6, 
-				      NET_IPV6_NEIGH, "ipv6",
-				      &ndisc_ifinfo_sysctl_change,
-				      NULL);
-		addrconf_sysctl_register(ndev, &ndev->cnf);
+	neigh_sysctl_register(dev, ndev->nd_parms, NET_IPV6,
+			      NET_IPV6_NEIGH, "ipv6",
+			      &ndisc_ifinfo_sysctl_change,
+			      NULL);
+	addrconf_sysctl_register(ndev, &ndev->cnf);
 #endif
-	}
 	return ndev;
 }
 
@@ -524,7 +535,7 @@ ipv6_add_addr(struct inet6_dev *idev, const struct in6_addr *addr, int pfxlen,
 		goto out;
 	}
 
-	ifa = kmalloc(sizeof(struct inet6_ifaddr), GFP_ATOMIC);
+	ifa = kzalloc(sizeof(struct inet6_ifaddr), GFP_ATOMIC);
 
 	if (ifa == NULL) {
 		ADBG(("ipv6_add_addr: malloc failed\n"));
@@ -538,7 +549,6 @@ ipv6_add_addr(struct inet6_dev *idev, const struct in6_addr *addr, int pfxlen,
 		goto out;
 	}
 
-	memset(ifa, 0, sizeof(struct inet6_ifaddr));
 	ipv6_addr_copy(&ifa->addr, addr);
 
 	spin_lock_init(&ifa->lock);
@@ -1305,52 +1315,67 @@ static void addrconf_leave_anycast(struct inet6_ifaddr *ifp)
 	__ipv6_dev_ac_dec(ifp->idev, &addr);
 }
 
+static int addrconf_ifid_eui48(u8 *eui, struct net_device *dev)
+{
+	if (dev->addr_len != ETH_ALEN)
+		return -1;
+	memcpy(eui, dev->dev_addr, 3);
+	memcpy(eui + 5, dev->dev_addr + 3, 3);
+
+	/*
+	 * The zSeries OSA network cards can be shared among various
+	 * OS instances, but the OSA cards have only one MAC address.
+	 * This leads to duplicate address conflicts in conjunction
+	 * with IPv6 if more than one instance uses the same card.
+	 *
+	 * The driver for these cards can deliver a unique 16-bit
+	 * identifier for each instance sharing the same card.  It is
+	 * placed instead of 0xFFFE in the interface identifier.  The
+	 * "u" bit of the interface identifier is not inverted in this
+	 * case.  Hence the resulting interface identifier has local
+	 * scope according to RFC2373.
+	 */
+	if (dev->dev_id) {
+		eui[3] = (dev->dev_id >> 8) & 0xFF;
+		eui[4] = dev->dev_id & 0xFF;
+	} else {
+		eui[3] = 0xFF;
+		eui[4] = 0xFE;
+		eui[0] ^= 2;
+	}
+	return 0;
+}
+
+static int addrconf_ifid_arcnet(u8 *eui, struct net_device *dev)
+{
+	/* XXX: inherit EUI-64 from other interface -- yoshfuji */
+	if (dev->addr_len != ARCNET_ALEN)
+		return -1;
+	memset(eui, 0, 7);
+	eui[7] = *(u8*)dev->dev_addr;
+	return 0;
+}
+
+static int addrconf_ifid_infiniband(u8 *eui, struct net_device *dev)
+{
+	if (dev->addr_len != INFINIBAND_ALEN)
+		return -1;
+	memcpy(eui, dev->dev_addr + 12, 8);
+	eui[0] |= 2;
+	return 0;
+}
+
 static int ipv6_generate_eui64(u8 *eui, struct net_device *dev)
 {
 	switch (dev->type) {
 	case ARPHRD_ETHER:
 	case ARPHRD_FDDI:
 	case ARPHRD_IEEE802_TR:
-		if (dev->addr_len != ETH_ALEN)
-			return -1;
-		memcpy(eui, dev->dev_addr, 3);
-		memcpy(eui + 5, dev->dev_addr + 3, 3);
-
-		/*
-		 * The zSeries OSA network cards can be shared among various
-		 * OS instances, but the OSA cards have only one MAC address.
-		 * This leads to duplicate address conflicts in conjunction
-		 * with IPv6 if more than one instance uses the same card.
-		 * 
-		 * The driver for these cards can deliver a unique 16-bit
-		 * identifier for each instance sharing the same card.  It is
-		 * placed instead of 0xFFFE in the interface identifier.  The
-		 * "u" bit of the interface identifier is not inverted in this
-		 * case.  Hence the resulting interface identifier has local
-		 * scope according to RFC2373.
-		 */
-		if (dev->dev_id) {
-			eui[3] = (dev->dev_id >> 8) & 0xFF;
-			eui[4] = dev->dev_id & 0xFF;
-		} else {
-			eui[3] = 0xFF;
-			eui[4] = 0xFE;
-			eui[0] ^= 2;
-		}
-		return 0;
+		return addrconf_ifid_eui48(eui, dev);
 	case ARPHRD_ARCNET:
-		/* XXX: inherit EUI-64 from other interface -- yoshfuji */
-		if (dev->addr_len != ARCNET_ALEN)
-			return -1;
-		memset(eui, 0, 7);
-		eui[7] = *(u8*)dev->dev_addr;
-		return 0;
+		return addrconf_ifid_arcnet(eui, dev);
 	case ARPHRD_INFINIBAND:
-		if (dev->addr_len != INFINIBAND_ALEN)
-			return -1;
-		memcpy(eui, dev->dev_addr + 12, 8);
-		eui[0] |= 2;
-		return 0;
+		return addrconf_ifid_infiniband(eui, dev);
 	}
 	return -1;
 }
@@ -1376,34 +1401,9 @@ static int ipv6_inherit_eui64(u8 *eui, struct inet6_dev *idev)
 /* (re)generation of randomized interface identifier (RFC 3041 3.2, 3.5) */
 static int __ipv6_regen_rndid(struct inet6_dev *idev)
 {
-	struct net_device *dev;
-	struct scatterlist sg[2];
-
-	sg_set_buf(&sg[0], idev->entropy, 8);
-	sg_set_buf(&sg[1], idev->work_eui64, 8);
-
-	dev = idev->dev;
-
-	if (ipv6_generate_eui64(idev->work_eui64, dev)) {
-		printk(KERN_INFO
-			"__ipv6_regen_rndid(idev=%p): cannot get EUI64 identifier; use random bytes.\n",
-			idev);
-		get_random_bytes(idev->work_eui64, sizeof(idev->work_eui64));
-	}
 regen:
-	spin_lock(&md5_tfm_lock);
-	if (unlikely(md5_tfm == NULL)) {
-		spin_unlock(&md5_tfm_lock);
-		return -1;
-	}
-	crypto_digest_init(md5_tfm);
-	crypto_digest_update(md5_tfm, sg, 2);
-	crypto_digest_final(md5_tfm, idev->work_digest);
-	spin_unlock(&md5_tfm_lock);
-
-	memcpy(idev->rndid, &idev->work_digest[0], 8);
+	get_random_bytes(idev->rndid, sizeof(idev->rndid));
 	idev->rndid[0] &= ~0x02;
-	memcpy(idev->entropy, &idev->work_digest[8], 8);
 
 	/*
 	 * <draft-ietf-ipngwg-temp-addresses-v2-00.txt>:
@@ -2143,7 +2143,6 @@ static void addrconf_ip6_tnl_config(struct net_device *dev)
 		return;
 	}
 	ip6_tnl_add_linklocal(idev);
-	addrconf_add_mroute(dev);
 }
 
 static int addrconf_notify(struct notifier_block *this, unsigned long event, 
@@ -2668,11 +2667,10 @@ static int if6_seq_open(struct inode *inode, struct file *file)
 {
 	struct seq_file *seq;
 	int rc = -ENOMEM;
-	struct if6_iter_state *s = kmalloc(sizeof(*s), GFP_KERNEL);
+	struct if6_iter_state *s = kzalloc(sizeof(*s), GFP_KERNEL);
 
 	if (!s)
 		goto out;
-	memset(s, 0, sizeof(*s));
 
 	rc = seq_open(file, &if6_seq_ops);
 	if (rc)
@@ -3133,6 +3131,15 @@ static void inline ipv6_store_devconf(struct ipv6_devconf *cnf,
 	array[DEVCONF_MAX_DESYNC_FACTOR] = cnf->max_desync_factor;
 #endif
 	array[DEVCONF_MAX_ADDRESSES] = cnf->max_addresses;
+	array[DEVCONF_ACCEPT_RA_DEFRTR] = cnf->accept_ra_defrtr;
+	array[DEVCONF_ACCEPT_RA_PINFO] = cnf->accept_ra_pinfo;
+#ifdef CONFIG_IPV6_ROUTER_PREF
+	array[DEVCONF_ACCEPT_RA_RTR_PREF] = cnf->accept_ra_rtr_pref;
+	array[DEVCONF_RTR_PROBE_INTERVAL] = cnf->rtr_probe_interval;
+#ifdef CONFIV_IPV6_ROUTE_INFO
+	array[DEVCONF_ACCEPT_RA_RT_INFO_MAX_PLEN] = cnf->accept_ra_rt_info_max_plen;
+#endif
+#endif
 }
 
 static int inet6_fill_ifinfo(struct sk_buff *skb, struct inet6_dev *idev, 
@@ -3586,6 +3593,51 @@ static struct addrconf_sysctl_table
 			.proc_handler	=	&proc_dointvec,
 		},
 		{
+			.ctl_name	=	NET_IPV6_ACCEPT_RA_DEFRTR,
+			.procname	=	"accept_ra_defrtr",
+         		.data		=	&ipv6_devconf.accept_ra_defrtr,
+			.maxlen		=	sizeof(int),
+			.mode		=	0644,
+         		.proc_handler	=	&proc_dointvec,
+		},
+		{
+			.ctl_name	=	NET_IPV6_ACCEPT_RA_PINFO,
+			.procname	=	"accept_ra_pinfo",
+         		.data		=	&ipv6_devconf.accept_ra_pinfo,
+			.maxlen		=	sizeof(int),
+			.mode		=	0644,
+         		.proc_handler	=	&proc_dointvec,
+		},
+#ifdef CONFIG_IPV6_ROUTER_PREF
+		{
+			.ctl_name	=	NET_IPV6_ACCEPT_RA_RTR_PREF,
+			.procname	=	"accept_ra_rtr_pref",
+			.data		=	&ipv6_devconf.accept_ra_rtr_pref,
+			.maxlen		=	sizeof(int),
+			.mode		=	0644,
+			.proc_handler	=	&proc_dointvec,
+		},
+		{
+			.ctl_name	=	NET_IPV6_RTR_PROBE_INTERVAL,
+			.procname	=	"router_probe_interval",
+			.data		=	&ipv6_devconf.rtr_probe_interval,
+			.maxlen		=	sizeof(int),
+			.mode		=	0644,
+			.proc_handler	=	&proc_dointvec_jiffies,
+			.strategy	=	&sysctl_jiffies,
+		},
+#ifdef CONFIV_IPV6_ROUTE_INFO
+		{
+			.ctl_name	=	NET_IPV6_ACCEPT_RA_RT_INFO_MAX_PLEN,
+			.procname	=	"accept_ra_rt_info_max_plen",
+			.data		=	&ipv6_devconf.accept_ra_rt_info_max_plen,
+			.maxlen		=	sizeof(int),
+			.mode		=	0644,
+			.proc_handler	=	&proc_dointvec,
+		},
+#endif
+#endif
+		{
 			.ctl_name	=	0,	/* sentinel */
 		}
 	},
@@ -3760,13 +3812,6 @@ int __init addrconf_init(void)
 
 	register_netdevice_notifier(&ipv6_dev_notf);
 
-#ifdef CONFIG_IPV6_PRIVACY
-	md5_tfm = crypto_alloc_tfm("md5", 0);
-	if (unlikely(md5_tfm == NULL))
-		printk(KERN_WARNING
-			"failed to load transform for md5\n");
-#endif
-
 	addrconf_verify(0);
 	rtnetlink_links[PF_INET6] = inet6_rtnetlink_table;
 #ifdef CONFIG_SYSCTL
@@ -3829,11 +3874,6 @@ void __exit addrconf_cleanup(void)
 
 	rtnl_unlock();
 
-#ifdef CONFIG_IPV6_PRIVACY
-	crypto_free_tfm(md5_tfm);
-	md5_tfm = NULL;
-#endif
-
 #ifdef CONFIG_PROC_FS
 	proc_net_remove("if_inet6");
 #endif
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index 6c9711a..e19457f 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -456,45 +456,53 @@ int inet6_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
 }
 
 const struct proto_ops inet6_stream_ops = {
-	.family =	PF_INET6,
-	.owner =	THIS_MODULE,
-	.release =	inet6_release,
-	.bind =		inet6_bind,
-	.connect =	inet_stream_connect,		/* ok		*/
-	.socketpair =	sock_no_socketpair,		/* a do nothing	*/
-	.accept =	inet_accept,			/* ok		*/
-	.getname =	inet6_getname, 
-	.poll =		tcp_poll,			/* ok		*/
-	.ioctl =	inet6_ioctl,			/* must change  */
-	.listen =	inet_listen,			/* ok		*/
-	.shutdown =	inet_shutdown,			/* ok		*/
-	.setsockopt =	sock_common_setsockopt,		/* ok		*/
-	.getsockopt =	sock_common_getsockopt,		/* ok		*/
-	.sendmsg =	inet_sendmsg,			/* ok		*/
-	.recvmsg =	sock_common_recvmsg,		/* ok		*/
-	.mmap =		sock_no_mmap,
-	.sendpage =	tcp_sendpage
+	.family		   = PF_INET6,
+	.owner		   = THIS_MODULE,
+	.release	   = inet6_release,
+	.bind		   = inet6_bind,
+	.connect	   = inet_stream_connect,	/* ok		*/
+	.socketpair	   = sock_no_socketpair,	/* a do nothing	*/
+	.accept		   = inet_accept,		/* ok		*/
+	.getname	   = inet6_getname,
+	.poll		   = tcp_poll,			/* ok		*/
+	.ioctl		   = inet6_ioctl,		/* must change  */
+	.listen		   = inet_listen,		/* ok		*/
+	.shutdown	   = inet_shutdown,		/* ok		*/
+	.setsockopt	   = sock_common_setsockopt,	/* ok		*/
+	.getsockopt	   = sock_common_getsockopt,	/* ok		*/
+	.sendmsg	   = inet_sendmsg,		/* ok		*/
+	.recvmsg	   = sock_common_recvmsg,	/* ok		*/
+	.mmap		   = sock_no_mmap,
+	.sendpage	   = tcp_sendpage,
+#ifdef CONFIG_COMPAT
+	.compat_setsockopt = compat_sock_common_setsockopt,
+	.compat_getsockopt = compat_sock_common_getsockopt,
+#endif
 };
 
 const struct proto_ops inet6_dgram_ops = {
-	.family =	PF_INET6,
-	.owner =	THIS_MODULE,
-	.release =	inet6_release,
-	.bind =		inet6_bind,
-	.connect =	inet_dgram_connect,		/* ok		*/
-	.socketpair =	sock_no_socketpair,		/* a do nothing	*/
-	.accept =	sock_no_accept,			/* a do nothing	*/
-	.getname =	inet6_getname, 
-	.poll =		udp_poll,			/* ok		*/
-	.ioctl =	inet6_ioctl,			/* must change  */
-	.listen =	sock_no_listen,			/* ok		*/
-	.shutdown =	inet_shutdown,			/* ok		*/
-	.setsockopt =	sock_common_setsockopt,		/* ok		*/
-	.getsockopt =	sock_common_getsockopt,		/* ok		*/
-	.sendmsg =	inet_sendmsg,			/* ok		*/
-	.recvmsg =	sock_common_recvmsg,		/* ok		*/
-	.mmap =		sock_no_mmap,
-	.sendpage =	sock_no_sendpage,
+	.family		   = PF_INET6,
+	.owner		   = THIS_MODULE,
+	.release	   = inet6_release,
+	.bind		   = inet6_bind,
+	.connect	   = inet_dgram_connect,	/* ok		*/
+	.socketpair	   = sock_no_socketpair,	/* a do nothing	*/
+	.accept		   = sock_no_accept,		/* a do nothing	*/
+	.getname	   = inet6_getname,
+	.poll		   = udp_poll,			/* ok		*/
+	.ioctl		   = inet6_ioctl,		/* must change  */
+	.listen		   = sock_no_listen,		/* ok		*/
+	.shutdown	   = inet_shutdown,		/* ok		*/
+	.setsockopt	   = sock_common_setsockopt,	/* ok		*/
+	.getsockopt	   = sock_common_getsockopt,	/* ok		*/
+	.sendmsg	   = inet_sendmsg,		/* ok		*/
+	.recvmsg	   = sock_common_recvmsg,	/* ok		*/
+	.mmap		   = sock_no_mmap,
+	.sendpage	   = sock_no_sendpage,
+#ifdef CONFIG_COMPAT
+	.compat_setsockopt = compat_sock_common_setsockopt,
+	.compat_getsockopt = compat_sock_common_getsockopt,
+#endif
 };
 
 static struct net_proto_family inet6_family_ops = {
@@ -505,24 +513,28 @@ static struct net_proto_family inet6_family_ops = {
 
 /* Same as inet6_dgram_ops, sans udp_poll.  */
 static const struct proto_ops inet6_sockraw_ops = {
-	.family =	PF_INET6,
-	.owner =	THIS_MODULE,
-	.release =	inet6_release,
-	.bind =		inet6_bind,
-	.connect =	inet_dgram_connect,		/* ok		*/
-	.socketpair =	sock_no_socketpair,		/* a do nothing	*/
-	.accept =	sock_no_accept,			/* a do nothing	*/
-	.getname =	inet6_getname, 
-	.poll =		datagram_poll,			/* ok		*/
-	.ioctl =	inet6_ioctl,			/* must change  */
-	.listen =	sock_no_listen,			/* ok		*/
-	.shutdown =	inet_shutdown,			/* ok		*/
-	.setsockopt =	sock_common_setsockopt,		/* ok		*/
-	.getsockopt =	sock_common_getsockopt,		/* ok		*/
-	.sendmsg =	inet_sendmsg,			/* ok		*/
-	.recvmsg =	sock_common_recvmsg,		/* ok		*/
-	.mmap =		sock_no_mmap,
-	.sendpage =	sock_no_sendpage,
+	.family		   = PF_INET6,
+	.owner		   = THIS_MODULE,
+	.release	   = inet6_release,
+	.bind		   = inet6_bind,
+	.connect	   = inet_dgram_connect,	/* ok		*/
+	.socketpair	   = sock_no_socketpair,	/* a do nothing	*/
+	.accept		   = sock_no_accept,		/* a do nothing	*/
+	.getname	   = inet6_getname,
+	.poll		   = datagram_poll,		/* ok		*/
+	.ioctl		   = inet6_ioctl,		/* must change  */
+	.listen		   = sock_no_listen,		/* ok		*/
+	.shutdown	   = inet_shutdown,		/* ok		*/
+	.setsockopt	   = sock_common_setsockopt,	/* ok		*/
+	.getsockopt	   = sock_common_getsockopt,	/* ok		*/
+	.sendmsg	   = inet_sendmsg,		/* ok		*/
+	.recvmsg	   = sock_common_recvmsg,	/* ok		*/
+	.mmap		   = sock_no_mmap,
+	.sendpage	   = sock_no_sendpage,
+#ifdef CONFIG_COMPAT
+	.compat_setsockopt = compat_sock_common_setsockopt,
+	.compat_getsockopt = compat_sock_common_getsockopt,
+#endif
 };
 
 static struct inet_protosw rawv6_protosw = {
diff --git a/net/ipv6/ah6.c b/net/ipv6/ah6.c
index 8496374..cf58251 100644
--- a/net/ipv6/ah6.c
+++ b/net/ipv6/ah6.c
@@ -213,6 +213,7 @@ static int ah6_output(struct xfrm_state *x, struct sk_buff *skb)
 	ah->reserved = 0;
 	ah->spi = x->id.spi;
 	ah->seq_no = htonl(++x->replay.oseq);
+	xfrm_aevent_doreplay(x);
 	ahp->icv(ahp, skb, ah->auth_data);
 
 	err = 0;
@@ -353,12 +354,10 @@ static int ah6_init_state(struct xfrm_state *x)
 	if (x->encap)
 		goto error;
 
-	ahp = kmalloc(sizeof(*ahp), GFP_KERNEL);
+	ahp = kzalloc(sizeof(*ahp), GFP_KERNEL);
 	if (ahp == NULL)
 		return -ENOMEM;
 
-	memset(ahp, 0, sizeof(*ahp));
-
 	ahp->key = x->aalg->alg_key;
 	ahp->key_len = (x->aalg->alg_key_len+7)/8;
 	ahp->tfm = crypto_alloc_tfm(x->aalg->alg_name, 0);
diff --git a/net/ipv6/anycast.c b/net/ipv6/anycast.c
index 840a33d..39ec528 100644
--- a/net/ipv6/anycast.c
+++ b/net/ipv6/anycast.c
@@ -308,7 +308,7 @@ int ipv6_dev_ac_inc(struct net_device *dev, struct in6_addr *addr)
 	 *	not found: create a new one.
 	 */
 
-	aca = kmalloc(sizeof(struct ifacaddr6), GFP_ATOMIC);
+	aca = kzalloc(sizeof(struct ifacaddr6), GFP_ATOMIC);
 
 	if (aca == NULL) {
 		err = -ENOMEM;
@@ -322,8 +322,6 @@ int ipv6_dev_ac_inc(struct net_device *dev, struct in6_addr *addr)
 		goto out;
 	}
 
-	memset(aca, 0, sizeof(struct ifacaddr6));
-
 	ipv6_addr_copy(&aca->aca_addr, addr);
 	aca->aca_idev = idev;
 	aca->aca_rt = rt;
@@ -550,7 +548,7 @@ static int ac6_seq_open(struct inode *inode, struct file *file)
 {
 	struct seq_file *seq;
 	int rc = -ENOMEM;
-	struct ac6_iter_state *s = kmalloc(sizeof(*s), GFP_KERNEL);
+	struct ac6_iter_state *s = kzalloc(sizeof(*s), GFP_KERNEL);
 
 	if (!s)
 		goto out;
@@ -561,7 +559,6 @@ static int ac6_seq_open(struct inode *inode, struct file *file)
 
 	seq = file->private_data;
 	seq->private = s;
-	memset(s, 0, sizeof(*s));
 out:
 	return rc;
 out_kfree:
diff --git a/net/ipv6/esp6.c b/net/ipv6/esp6.c
index 7b5b94f..3dcaac7 100644
--- a/net/ipv6/esp6.c
+++ b/net/ipv6/esp6.c
@@ -94,6 +94,7 @@ static int esp6_output(struct xfrm_state *x, struct sk_buff *skb)
 
 	esph->spi = x->id.spi;
 	esph->seq_no = htonl(++x->replay.oseq);
+	xfrm_aevent_doreplay(x);
 
 	if (esp->conf.ivlen)
 		crypto_cipher_set_iv(tfm, esp->conf.ivec, crypto_tfm_alg_ivsize(tfm));
@@ -304,12 +305,10 @@ static int esp6_init_state(struct xfrm_state *x)
 	if (x->encap)
 		goto error;
 
-	esp = kmalloc(sizeof(*esp), GFP_KERNEL);
+	esp = kzalloc(sizeof(*esp), GFP_KERNEL);
 	if (esp == NULL)
 		return -ENOMEM;
 
-	memset(esp, 0, sizeof(*esp));
-
 	if (x->aalg) {
 		struct xfrm_algo_desc *aalg_desc;
 
diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c
index 1bf6d9a..2cb6149 100644
--- a/net/ipv6/ip6_fib.c
+++ b/net/ipv6/ip6_fib.c
@@ -1105,7 +1105,6 @@ static int fib6_age(struct rt6_info *rt, void *arg)
 	if (rt->rt6i_flags&RTF_EXPIRES && rt->rt6i_expires) {
 		if (time_after(now, rt->rt6i_expires)) {
 			RT6_TRACE("expiring %p\n", rt);
-			rt6_reset_dflt_pointer(rt);
 			return -1;
 		}
 		gc_args.more++;
diff --git a/net/ipv6/ip6_flowlabel.c b/net/ipv6/ip6_flowlabel.c
index 69cbe8a..f9ca639 100644
--- a/net/ipv6/ip6_flowlabel.c
+++ b/net/ipv6/ip6_flowlabel.c
@@ -287,10 +287,9 @@ fl_create(struct in6_flowlabel_req *freq, char __user *optval, int optlen, int *
 	int err;
 
 	err = -ENOMEM;
-	fl = kmalloc(sizeof(*fl), GFP_KERNEL);
+	fl = kzalloc(sizeof(*fl), GFP_KERNEL);
 	if (fl == NULL)
 		goto done;
-	memset(fl, 0, sizeof(*fl));
 
 	olen = optlen - CMSG_ALIGN(sizeof(*freq));
 	if (olen > 0) {
@@ -663,7 +662,7 @@ static int ip6fl_seq_open(struct inode *inode, struct file *file)
 {
 	struct seq_file *seq;
 	int rc = -ENOMEM;
-	struct ip6fl_iter_state *s = kmalloc(sizeof(*s), GFP_KERNEL);
+	struct ip6fl_iter_state *s = kzalloc(sizeof(*s), GFP_KERNEL);
 
 	if (!s)
 		goto out;
@@ -674,7 +673,6 @@ static int ip6fl_seq_open(struct inode *inode, struct file *file)
 
 	seq = file->private_data;
 	seq->private = s;
-	memset(s, 0, sizeof(*s));
 out:
 	return rc;
 out_kfree:
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 5bf70b1..e460489 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -161,7 +161,7 @@ int ip6_output(struct sk_buff *skb)
 int ip6_xmit(struct sock *sk, struct sk_buff *skb, struct flowi *fl,
 	     struct ipv6_txoptions *opt, int ipfragok)
 {
-	struct ipv6_pinfo *np = sk ? inet6_sk(sk) : NULL;
+	struct ipv6_pinfo *np = inet6_sk(sk);
 	struct in6_addr *first_hop = &fl->fl6_dst;
 	struct dst_entry *dst = skb->dst;
 	struct ipv6hdr *hdr;
@@ -733,28 +733,29 @@ int ip6_dst_lookup(struct sock *sk, struct dst_entry **dst, struct flowi *fl)
 		if (*dst) {
 			struct rt6_info *rt = (struct rt6_info*)*dst;
 	
-				/* Yes, checking route validity in not connected
-				   case is not very simple. Take into account,
-				   that we do not support routing by source, TOS,
-				   and MSG_DONTROUTE 		--ANK (980726)
-	
-				   1. If route was host route, check that
-				      cached destination is current.
-				      If it is network route, we still may
-				      check its validity using saved pointer
-				      to the last used address: daddr_cache.
-				      We do not want to save whole address now,
-				      (because main consumer of this service
-				       is tcp, which has not this problem),
-				      so that the last trick works only on connected
-				      sockets.
-				   2. oif also should be the same.
-				 */
-	
+			/* Yes, checking route validity in not connected
+			 * case is not very simple. Take into account,
+			 * that we do not support routing by source, TOS,
+			 * and MSG_DONTROUTE 		--ANK (980726)
+			 *
+			 * 1. If route was host route, check that
+			 *    cached destination is current.
+			 *    If it is network route, we still may
+			 *    check its validity using saved pointer
+			 *    to the last used address: daddr_cache.
+			 *    We do not want to save whole address now,
+			 *    (because main consumer of this service
+			 *    is tcp, which has not this problem),
+			 *    so that the last trick works only on connected
+			 *    sockets.
+			 * 2. oif also should be the same.
+			 */
 			if (((rt->rt6i_dst.plen != 128 ||
-			      !ipv6_addr_equal(&fl->fl6_dst, &rt->rt6i_dst.addr))
+			      !ipv6_addr_equal(&fl->fl6_dst,
+					       &rt->rt6i_dst.addr))
 			     && (np->daddr_cache == NULL ||
-				 !ipv6_addr_equal(&fl->fl6_dst, np->daddr_cache)))
+				 !ipv6_addr_equal(&fl->fl6_dst,
+						  np->daddr_cache)))
 			    || (fl->oif && fl->oif != (*dst)->dev->ifindex)) {
 				dst_release(*dst);
 				*dst = NULL;
@@ -889,7 +890,7 @@ int ip6_append_data(struct sock *sk, int getfrag(void *from, char *to,
 		np->cork.hop_limit = hlimit;
 		np->cork.tclass = tclass;
 		mtu = dst_mtu(rt->u.dst.path);
-		if (np && np->frag_size < mtu) {
+		if (np->frag_size < mtu) {
 			if (np->frag_size)
 				mtu = np->frag_size;
 		}
diff --git a/net/ipv6/ipcomp6.c b/net/ipv6/ipcomp6.c
index d511a88..028b636 100644
--- a/net/ipv6/ipcomp6.c
+++ b/net/ipv6/ipcomp6.c
@@ -50,6 +50,7 @@
 #include <net/protocol.h>
 #include <linux/ipv6.h>
 #include <linux/icmpv6.h>
+#include <linux/mutex.h>
 
 struct ipcomp6_tfms {
 	struct list_head list;
@@ -57,7 +58,7 @@ struct ipcomp6_tfms {
 	int users;
 };
 
-static DECLARE_MUTEX(ipcomp6_resource_sem);
+static DEFINE_MUTEX(ipcomp6_resource_mutex);
 static void **ipcomp6_scratches;
 static int ipcomp6_scratch_users;
 static LIST_HEAD(ipcomp6_tfms_list);
@@ -286,8 +287,8 @@ static void ipcomp6_free_scratches(void)
 
 	for_each_cpu(i) {
 		void *scratch = *per_cpu_ptr(scratches, i);
-		if (scratch)
-			vfree(scratch);
+
+		vfree(scratch);
 	}
 
 	free_percpu(scratches);
@@ -405,9 +406,9 @@ static void ipcomp6_destroy(struct xfrm_state *x)
 	if (!ipcd)
 		return;
 	xfrm_state_delete_tunnel(x);
-	down(&ipcomp6_resource_sem);
+	mutex_lock(&ipcomp6_resource_mutex);
 	ipcomp6_free_data(ipcd);
-	up(&ipcomp6_resource_sem);
+	mutex_unlock(&ipcomp6_resource_mutex);
 	kfree(ipcd);
 
 	xfrm6_tunnel_free_spi((xfrm_address_t *)&x->props.saddr);
@@ -427,23 +428,22 @@ static int ipcomp6_init_state(struct xfrm_state *x)
 		goto out;
 
 	err = -ENOMEM;
-	ipcd = kmalloc(sizeof(*ipcd), GFP_KERNEL);
+	ipcd = kzalloc(sizeof(*ipcd), GFP_KERNEL);
 	if (!ipcd)
 		goto out;
 
-	memset(ipcd, 0, sizeof(*ipcd));
 	x->props.header_len = 0;
 	if (x->props.mode)
 		x->props.header_len += sizeof(struct ipv6hdr);
 	
-	down(&ipcomp6_resource_sem);
+	mutex_lock(&ipcomp6_resource_mutex);
 	if (!ipcomp6_alloc_scratches())
 		goto error;
 
 	ipcd->tfms = ipcomp6_alloc_tfms(x->calg->alg_name);
 	if (!ipcd->tfms)
 		goto error;
-	up(&ipcomp6_resource_sem);
+	mutex_unlock(&ipcomp6_resource_mutex);
 
 	if (x->props.mode) {
 		err = ipcomp6_tunnel_attach(x);
@@ -459,10 +459,10 @@ static int ipcomp6_init_state(struct xfrm_state *x)
 out:
 	return err;
 error_tunnel:
-	down(&ipcomp6_resource_sem);
+	mutex_lock(&ipcomp6_resource_mutex);
 error:
 	ipcomp6_free_data(ipcd);
-	up(&ipcomp6_resource_sem);
+	mutex_unlock(&ipcomp6_resource_mutex);
 	kfree(ipcd);
 
 	goto out;
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index f7142ba..4c20eeb 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -109,19 +109,13 @@ int ip6_ra_control(struct sock *sk, int sel, void (*destructor)(struct sock *))
 	return 0;
 }
 
-int ipv6_setsockopt(struct sock *sk, int level, int optname,
+static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
 		    char __user *optval, int optlen)
 {
 	struct ipv6_pinfo *np = inet6_sk(sk);
 	int val, valbool;
 	int retv = -ENOPROTOOPT;
 
-	if (level == SOL_IP && sk->sk_type != SOCK_RAW)
-		return udp_prot.setsockopt(sk, level, optname, optval, optlen);
-
-	if(level!=SOL_IPV6)
-		goto out;
-
 	if (optval == NULL)
 		val=0;
 	else if (get_user(val, (int __user *) optval))
@@ -613,17 +607,9 @@ done:
 		retv = xfrm_user_policy(sk, optname, optval, optlen);
 		break;
 
-#ifdef CONFIG_NETFILTER
-	default:
-		retv = nf_setsockopt(sk, PF_INET6, optname, optval, 
-					    optlen);
-		break;
-#endif
-
 	}
 	release_sock(sk);
 
-out:
 	return retv;
 
 e_inval:
@@ -631,6 +617,65 @@ e_inval:
 	return -EINVAL;
 }
 
+int ipv6_setsockopt(struct sock *sk, int level, int optname,
+		    char __user *optval, int optlen)
+{
+	int err;
+
+	if (level == SOL_IP && sk->sk_type != SOCK_RAW)
+		return udp_prot.setsockopt(sk, level, optname, optval, optlen);
+
+	if (level != SOL_IPV6)
+		return -ENOPROTOOPT;
+
+	err = do_ipv6_setsockopt(sk, level, optname, optval, optlen);
+#ifdef CONFIG_NETFILTER
+	/* we need to exclude all possible ENOPROTOOPTs except default case */
+	if (err == -ENOPROTOOPT && optname != IPV6_IPSEC_POLICY &&
+			optname != IPV6_XFRM_POLICY) {
+		lock_sock(sk);
+		err = nf_setsockopt(sk, PF_INET6, optname, optval,
+				optlen);
+		release_sock(sk);
+	}
+#endif
+	return err;
+}
+
+
+#ifdef CONFIG_COMPAT
+int compat_ipv6_setsockopt(struct sock *sk, int level, int optname,
+			   char __user *optval, int optlen)
+{
+	int err;
+
+	if (level == SOL_IP && sk->sk_type != SOCK_RAW) {
+		if (udp_prot.compat_setsockopt != NULL)
+			return udp_prot.compat_setsockopt(sk, level, optname,
+							  optval, optlen);
+		return udp_prot.setsockopt(sk, level, optname, optval, optlen);
+	}
+
+	if (level != SOL_IPV6)
+		return -ENOPROTOOPT;
+
+	err = do_ipv6_setsockopt(sk, level, optname, optval, optlen);
+#ifdef CONFIG_NETFILTER
+	/* we need to exclude all possible ENOPROTOOPTs except default case */
+	if (err == -ENOPROTOOPT && optname != IPV6_IPSEC_POLICY &&
+	    optname != IPV6_XFRM_POLICY) {
+		lock_sock(sk);
+		err = compat_nf_setsockopt(sk, PF_INET6, optname,
+					   optval, optlen);
+		release_sock(sk);
+	}
+#endif
+	return err;
+}
+
+EXPORT_SYMBOL(compat_ipv6_setsockopt);
+#endif
+
 static int ipv6_getsockopt_sticky(struct sock *sk, struct ipv6_opt_hdr *hdr,
 				  char __user *optval, int len)
 {
@@ -642,17 +687,13 @@ static int ipv6_getsockopt_sticky(struct sock *sk, struct ipv6_opt_hdr *hdr,
 	return len;
 }
 
-int ipv6_getsockopt(struct sock *sk, int level, int optname,
+static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
 		    char __user *optval, int __user *optlen)
 {
 	struct ipv6_pinfo *np = inet6_sk(sk);
 	int len;
 	int val;
 
-	if (level == SOL_IP && sk->sk_type != SOCK_RAW)
-		return udp_prot.getsockopt(sk, level, optname, optval, optlen);
-	if(level!=SOL_IPV6)
-		return -ENOPROTOOPT;
 	if (get_user(len, optlen))
 		return -EFAULT;
 	switch (optname) {
@@ -842,17 +883,7 @@ int ipv6_getsockopt(struct sock *sk, int level, int optname,
 		break;
 
 	default:
-#ifdef CONFIG_NETFILTER
-		lock_sock(sk);
-		val = nf_getsockopt(sk, PF_INET6, optname, optval, 
-				    &len);
-		release_sock(sk);
-		if (val >= 0)
-			val = put_user(len, optlen);
-		return val;
-#else
 		return -EINVAL;
-#endif
 	}
 	len = min_t(unsigned int, sizeof(int), len);
 	if(put_user(len, optlen))
@@ -862,6 +893,78 @@ int ipv6_getsockopt(struct sock *sk, int level, int optname,
 	return 0;
 }
 
+int ipv6_getsockopt(struct sock *sk, int level, int optname,
+		    char __user *optval, int __user *optlen)
+{
+	int err;
+
+	if (level == SOL_IP && sk->sk_type != SOCK_RAW)
+		return udp_prot.getsockopt(sk, level, optname, optval, optlen);
+
+	if(level != SOL_IPV6)
+		return -ENOPROTOOPT;
+
+	err = do_ipv6_getsockopt(sk, level, optname, optval, optlen);
+#ifdef CONFIG_NETFILTER
+	/* we need to exclude all possible EINVALs except default case */
+	if (err == -EINVAL && optname != IPV6_ADDRFORM &&
+			optname != MCAST_MSFILTER) {
+		int len;
+
+		if (get_user(len, optlen))
+			return -EFAULT;
+
+		lock_sock(sk);
+		err = nf_getsockopt(sk, PF_INET6, optname, optval,
+				&len);
+		release_sock(sk);
+		if (err >= 0)
+			err = put_user(len, optlen);
+	}
+#endif
+	return err;
+}
+
+#ifdef CONFIG_COMPAT
+int compat_ipv6_getsockopt(struct sock *sk, int level, int optname,
+			   char __user *optval, int __user *optlen)
+{
+	int err;
+
+	if (level == SOL_IP && sk->sk_type != SOCK_RAW) {
+		if (udp_prot.compat_getsockopt != NULL)
+			return udp_prot.compat_getsockopt(sk, level, optname,
+							  optval, optlen);
+		return udp_prot.getsockopt(sk, level, optname, optval, optlen);
+	}
+
+	if (level != SOL_IPV6)
+		return -ENOPROTOOPT;
+
+	err = do_ipv6_getsockopt(sk, level, optname, optval, optlen);
+#ifdef CONFIG_NETFILTER
+	/* we need to exclude all possible EINVALs except default case */
+	if (err == -EINVAL && optname != IPV6_ADDRFORM &&
+			optname != MCAST_MSFILTER) {
+		int len;
+
+		if (get_user(len, optlen))
+			return -EFAULT;
+
+		lock_sock(sk);
+		err = compat_nf_getsockopt(sk, PF_INET6,
+					   optname, optval, &len);
+		release_sock(sk);
+		if (err >= 0)
+			err = put_user(len, optlen);
+	}
+#endif
+	return err;
+}
+
+EXPORT_SYMBOL(compat_ipv6_getsockopt);
+#endif
+
 void __init ipv6_packet_init(void)
 {
 	dev_add_pack(&ipv6_packet_type);
diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index 807c021..6e871af 100644
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -767,10 +767,10 @@ static void mld_add_delrec(struct inet6_dev *idev, struct ifmcaddr6 *im)
 	 * for deleted items allows change reports to use common code with
 	 * non-deleted or query-response MCA's.
 	 */
-	pmc = kmalloc(sizeof(*pmc), GFP_ATOMIC);
+	pmc = kzalloc(sizeof(*pmc), GFP_ATOMIC);
 	if (!pmc)
 		return;
-	memset(pmc, 0, sizeof(*pmc));
+
 	spin_lock_bh(&im->mca_lock);
 	spin_lock_init(&pmc->mca_lock);
 	pmc->idev = im->idev;
@@ -893,7 +893,7 @@ int ipv6_dev_mc_inc(struct net_device *dev, struct in6_addr *addr)
 	 *	not found: create a new one.
 	 */
 
-	mc = kmalloc(sizeof(struct ifmcaddr6), GFP_ATOMIC);
+	mc = kzalloc(sizeof(struct ifmcaddr6), GFP_ATOMIC);
 
 	if (mc == NULL) {
 		write_unlock_bh(&idev->lock);
@@ -901,7 +901,6 @@ int ipv6_dev_mc_inc(struct net_device *dev, struct in6_addr *addr)
 		return -ENOMEM;
 	}
 
-	memset(mc, 0, sizeof(struct ifmcaddr6));
 	init_timer(&mc->mca_timer);
 	mc->mca_timer.function = igmp6_timer_handler;
 	mc->mca_timer.data = (unsigned long) mc;
@@ -1934,10 +1933,10 @@ static int ip6_mc_add1_src(struct ifmcaddr6 *pmc, int sfmode,
 		psf_prev = psf;
 	}
 	if (!psf) {
-		psf = kmalloc(sizeof(*psf), GFP_ATOMIC);
+		psf = kzalloc(sizeof(*psf), GFP_ATOMIC);
 		if (!psf)
 			return -ENOBUFS;
-		memset(psf, 0, sizeof(*psf));
+
 		psf->sf_addr = *psfsrc;
 		if (psf_prev) {
 			psf_prev->sf_next = psf;
@@ -2431,7 +2430,7 @@ static int igmp6_mc_seq_open(struct inode *inode, struct file *file)
 {
 	struct seq_file *seq;
 	int rc = -ENOMEM;
-	struct igmp6_mc_iter_state *s = kmalloc(sizeof(*s), GFP_KERNEL);
+	struct igmp6_mc_iter_state *s = kzalloc(sizeof(*s), GFP_KERNEL);
 
 	if (!s)
 		goto out;
@@ -2442,7 +2441,6 @@ static int igmp6_mc_seq_open(struct inode *inode, struct file *file)
 
 	seq = file->private_data;
 	seq->private = s;
-	memset(s, 0, sizeof(*s));
 out:
 	return rc;
 out_kfree:
@@ -2606,7 +2604,7 @@ static int igmp6_mcf_seq_open(struct inode *inode, struct file *file)
 {
 	struct seq_file *seq;
 	int rc = -ENOMEM;
-	struct igmp6_mcf_iter_state *s = kmalloc(sizeof(*s), GFP_KERNEL);
+	struct igmp6_mcf_iter_state *s = kzalloc(sizeof(*s), GFP_KERNEL);
 	
 	if (!s)
 		goto out;
@@ -2617,7 +2615,6 @@ static int igmp6_mcf_seq_open(struct inode *inode, struct file *file)
 
 	seq = file->private_data;
 	seq->private = s;
-	memset(s, 0, sizeof(*s));
 out:
 	return rc;
 out_kfree:
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index cb8856b..dfa20d3 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -156,7 +156,11 @@ struct neigh_table nd_tbl = {
 
 /* ND options */
 struct ndisc_options {
-	struct nd_opt_hdr *nd_opt_array[__ND_OPT_MAX];
+	struct nd_opt_hdr *nd_opt_array[__ND_OPT_ARRAY_MAX];
+#ifdef CONFIG_IPV6_ROUTE_INFO
+	struct nd_opt_hdr *nd_opts_ri;
+	struct nd_opt_hdr *nd_opts_ri_end;
+#endif
 };
 
 #define nd_opts_src_lladdr	nd_opt_array[ND_OPT_SOURCE_LL_ADDR]
@@ -255,6 +259,13 @@ static struct ndisc_options *ndisc_parse_options(u8 *opt, int opt_len,
 			if (ndopts->nd_opt_array[nd_opt->nd_opt_type] == 0)
 				ndopts->nd_opt_array[nd_opt->nd_opt_type] = nd_opt;
 			break;
+#ifdef CONFIG_IPV6_ROUTE_INFO
+		case ND_OPT_ROUTE_INFO:
+			ndopts->nd_opts_ri_end = nd_opt;
+			if (!ndopts->nd_opts_ri)
+				ndopts->nd_opts_ri = nd_opt;
+			break;
+#endif
 		default:
 			/*
 			 * Unknown options must be silently ignored,
@@ -1019,10 +1030,11 @@ static void ndisc_router_discovery(struct sk_buff *skb)
         struct ra_msg *ra_msg = (struct ra_msg *) skb->h.raw;
 	struct neighbour *neigh = NULL;
 	struct inet6_dev *in6_dev;
-	struct rt6_info *rt;
+	struct rt6_info *rt = NULL;
 	int lifetime;
 	struct ndisc_options ndopts;
 	int optlen;
+	unsigned int pref = 0;
 
 	__u8 * opt = (__u8 *)(ra_msg + 1);
 
@@ -1081,8 +1093,19 @@ static void ndisc_router_discovery(struct sk_buff *skb)
 				(ra_msg->icmph.icmp6_addrconf_other ?
 					IF_RA_OTHERCONF : 0);
 
+	if (!in6_dev->cnf.accept_ra_defrtr)
+		goto skip_defrtr;
+
 	lifetime = ntohs(ra_msg->icmph.icmp6_rt_lifetime);
 
+#ifdef CONFIG_IPV6_ROUTER_PREF
+	pref = ra_msg->icmph.icmp6_router_pref;
+	/* 10b is handled as if it were 00b (medium) */
+	if (pref == ICMPV6_ROUTER_PREF_INVALID ||
+	    in6_dev->cnf.accept_ra_rtr_pref)
+		pref = ICMPV6_ROUTER_PREF_MEDIUM;
+#endif
+
 	rt = rt6_get_dflt_router(&skb->nh.ipv6h->saddr, skb->dev);
 
 	if (rt)
@@ -1098,7 +1121,7 @@ static void ndisc_router_discovery(struct sk_buff *skb)
 		ND_PRINTK3(KERN_DEBUG
 			   "ICMPv6 RA: adding default router.\n");
 
-		rt = rt6_add_dflt_router(&skb->nh.ipv6h->saddr, skb->dev);
+		rt = rt6_add_dflt_router(&skb->nh.ipv6h->saddr, skb->dev, pref);
 		if (rt == NULL) {
 			ND_PRINTK0(KERN_ERR
 				   "ICMPv6 RA: %s() failed to add default route.\n",
@@ -1117,6 +1140,8 @@ static void ndisc_router_discovery(struct sk_buff *skb)
 			return;
 		}
 		neigh->flags |= NTF_ROUTER;
+	} else if (rt) {
+		rt->rt6i_flags |= (rt->rt6i_flags & ~RTF_PREF_MASK) | RTF_PREF(pref);
 	}
 
 	if (rt)
@@ -1128,6 +1153,8 @@ static void ndisc_router_discovery(struct sk_buff *skb)
 			rt->u.dst.metrics[RTAX_HOPLIMIT-1] = ra_msg->icmph.icmp6_hop_limit;
 	}
 
+skip_defrtr:
+
 	/*
 	 *	Update Reachable Time and Retrans Timer
 	 */
@@ -1186,7 +1213,21 @@ static void ndisc_router_discovery(struct sk_buff *skb)
 			     NEIGH_UPDATE_F_ISROUTER);
 	}
 
-	if (ndopts.nd_opts_pi) {
+#ifdef CONFIG_IPV6_ROUTE_INFO
+	if (in6_dev->cnf.accept_ra_rtr_pref && ndopts.nd_opts_ri) {
+		struct nd_opt_hdr *p;
+		for (p = ndopts.nd_opts_ri;
+		     p;
+		     p = ndisc_next_option(p, ndopts.nd_opts_ri_end)) {
+			if (((struct route_info *)p)->prefix_len > in6_dev->cnf.accept_ra_rt_info_max_plen)
+				continue;
+			rt6_route_rcv(skb->dev, (u8*)p, (p->nd_opt_len) << 3,
+				      &skb->nh.ipv6h->saddr);
+		}
+	}
+#endif
+
+	if (in6_dev->cnf.accept_ra_pinfo && ndopts.nd_opts_pi) {
 		struct nd_opt_hdr *p;
 		for (p = ndopts.nd_opts_pi;
 		     p;
diff --git a/net/ipv6/netfilter/Kconfig b/net/ipv6/netfilter/Kconfig
index 2d6f8ec..98f7875 100644
--- a/net/ipv6/netfilter/Kconfig
+++ b/net/ipv6/netfilter/Kconfig
@@ -133,16 +133,6 @@ config IP6_NF_MATCH_EUI64
 
 	  To compile it as a module, choose M here.  If unsure, say N.
 
-config IP6_NF_MATCH_POLICY
-	tristate "IPsec policy match support"
-	depends on IP6_NF_IPTABLES && XFRM
-	help
-	  Policy matching allows you to match packets based on the
-	  IPsec policy that was used during decapsulation/will
-	  be used during encapsulation.
-
-	  To compile it as a module, choose M here.  If unsure, say N.
-
 # The targets
 config IP6_NF_FILTER
 	tristate "Packet filtering"
diff --git a/net/ipv6/netfilter/Makefile b/net/ipv6/netfilter/Makefile
index db6073c..8436a1a 100644
--- a/net/ipv6/netfilter/Makefile
+++ b/net/ipv6/netfilter/Makefile
@@ -9,7 +9,6 @@ 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-$(CONFIG_IP6_NF_MATCH_POLICY) += ip6t_policy.o
 obj-$(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
diff --git a/net/ipv6/netfilter/ip6_queue.c b/net/ipv6/netfilter/ip6_queue.c
index af06350..344eab3 100644
--- a/net/ipv6/netfilter/ip6_queue.c
+++ b/net/ipv6/netfilter/ip6_queue.c
@@ -35,6 +35,7 @@
 #include <linux/spinlock.h>
 #include <linux/sysctl.h>
 #include <linux/proc_fs.h>
+#include <linux/mutex.h>
 #include <net/sock.h>
 #include <net/ipv6.h>
 #include <net/ip6_route.h>
@@ -65,7 +66,7 @@ static unsigned int queue_dropped = 0;
 static unsigned int queue_user_dropped = 0;
 static struct sock *ipqnl;
 static LIST_HEAD(queue_list);
-static DECLARE_MUTEX(ipqnl_sem);
+static DEFINE_MUTEX(ipqnl_mutex);
 
 static void
 ipq_issue_verdict(struct ipq_queue_entry *entry, int verdict)
@@ -537,7 +538,7 @@ ipq_rcv_sk(struct sock *sk, int len)
 	struct sk_buff *skb;
 	unsigned int qlen;
 
-	down(&ipqnl_sem);
+	mutex_lock(&ipqnl_mutex);
 			
 	for (qlen = skb_queue_len(&sk->sk_receive_queue); qlen; qlen--) {
 		skb = skb_dequeue(&sk->sk_receive_queue);
@@ -545,7 +546,7 @@ ipq_rcv_sk(struct sock *sk, int len)
 		kfree_skb(skb);
 	}
 		
-	up(&ipqnl_sem);
+	mutex_unlock(&ipqnl_mutex);
 }
 
 static int
@@ -704,8 +705,8 @@ cleanup_sysctl:
 	
 cleanup_ipqnl:
 	sock_release(ipqnl->sk_socket);
-	down(&ipqnl_sem);
-	up(&ipqnl_sem);
+	mutex_lock(&ipqnl_mutex);
+	mutex_unlock(&ipqnl_mutex);
 	
 cleanup_netlink_notifier:
 	netlink_unregister_notifier(&ipq_nl_notifier);
diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c
index 74ff56c..db3c9ae 100644
--- a/net/ipv6/netfilter/ip6_tables.c
+++ b/net/ipv6/netfilter/ip6_tables.c
@@ -29,7 +29,7 @@
 #include <linux/icmpv6.h>
 #include <net/ipv6.h>
 #include <asm/uaccess.h>
-#include <asm/semaphore.h>
+#include <linux/mutex.h>
 #include <linux/proc_fs.h>
 #include <linux/cpumask.h>
 
@@ -94,19 +94,6 @@ do {								\
 #define up(x) do { printk("UP:%u:" #x "\n", __LINE__); up(x); } while(0)
 #endif
 
-int
-ip6_masked_addrcmp(const struct in6_addr *addr1, const struct in6_addr *mask,
-                   const struct in6_addr *addr2)
-{
-	int i;
-	for( i = 0; i < 16; i++){
-		if((addr1->s6_addr[i] & mask->s6_addr[i]) != 
-		   (addr2->s6_addr[i] & mask->s6_addr[i]))
-			return 1;
-	}
-	return 0;
-}
-
 /* Check for an extension */
 int 
 ip6t_ext_hdr(u8 nexthdr)
@@ -135,10 +122,10 @@ ip6_packet_match(const struct sk_buff *skb,
 
 #define FWINV(bool,invflg) ((bool) ^ !!(ip6info->invflags & invflg))
 
-	if (FWINV(ip6_masked_addrcmp(&ipv6->saddr, &ip6info->smsk,
-	                             &ip6info->src), IP6T_INV_SRCIP)
-	    || FWINV(ip6_masked_addrcmp(&ipv6->daddr, &ip6info->dmsk,
-	                                &ip6info->dst), IP6T_INV_DSTIP)) {
+	if (FWINV(ipv6_masked_addr_cmp(&ipv6->saddr, &ip6info->smsk,
+	                               &ip6info->src), IP6T_INV_SRCIP)
+	    || FWINV(ipv6_masked_addr_cmp(&ipv6->daddr, &ip6info->dmsk,
+	                                  &ip6info->dst), IP6T_INV_DSTIP)) {
 		dprintf("Source or dest mismatch.\n");
 /*
 		dprintf("SRC: %u. Mask: %u. Target: %u.%s\n", ip->saddr,
@@ -232,6 +219,7 @@ ip6t_error(struct sk_buff **pskb,
 	  const struct net_device *in,
 	  const struct net_device *out,
 	  unsigned int hooknum,
+	  const struct xt_target *target,
 	  const void *targinfo,
 	  void *userinfo)
 {
@@ -251,7 +239,7 @@ int do_match(struct ip6t_entry_match *m,
 	     int *hotdrop)
 {
 	/* Stop iteration if it doesn't match */
-	if (!m->u.kernel.match->match(skb, in, out, m->data,
+	if (!m->u.kernel.match->match(skb, in, out, m->u.kernel.match, m->data,
 				      offset, protoff, hotdrop))
 		return 1;
 	else
@@ -373,6 +361,7 @@ ip6t_do_table(struct sk_buff **pskb,
 				verdict = t->u.kernel.target->target(pskb,
 								     in, out,
 								     hook,
+								     t->u.kernel.target,
 								     t->data,
 								     userdata);
 
@@ -531,7 +520,7 @@ cleanup_match(struct ip6t_entry_match *m, unsigned int *i)
 		return 1;
 
 	if (m->u.kernel.match->destroy)
-		m->u.kernel.match->destroy(m->data,
+		m->u.kernel.match->destroy(m->u.kernel.match, m->data,
 					   m->u.match_size - sizeof(*m));
 	module_put(m->u.kernel.match->me);
 	return 0;
@@ -544,21 +533,12 @@ standard_check(const struct ip6t_entry_target *t,
 	struct ip6t_standard_target *targ = (void *)t;
 
 	/* Check standard info. */
-	if (t->u.target_size
-	    != IP6T_ALIGN(sizeof(struct ip6t_standard_target))) {
-		duprintf("standard_check: target size %u != %u\n",
-			 t->u.target_size,
-			 IP6T_ALIGN(sizeof(struct ip6t_standard_target)));
-		return 0;
-	}
-
 	if (targ->verdict >= 0
 	    && targ->verdict > max_offset - sizeof(struct ip6t_entry)) {
 		duprintf("ip6t_standard_check: bad verdict (%i)\n",
 			 targ->verdict);
 		return 0;
 	}
-
 	if (targ->verdict < -NF_MAX_VERDICT - 1) {
 		duprintf("ip6t_standard_check: bad negative verdict (%i)\n",
 			 targ->verdict);
@@ -575,6 +555,7 @@ check_match(struct ip6t_entry_match *m,
 	    unsigned int *i)
 {
 	struct ip6t_match *match;
+	int ret;
 
 	match = try_then_request_module(xt_find_match(AF_INET6, m->u.user.name,
 			      		m->u.user.revision),
@@ -585,18 +566,27 @@ check_match(struct ip6t_entry_match *m,
 	}
 	m->u.kernel.match = match;
 
+	ret = xt_check_match(match, AF_INET6, m->u.match_size - sizeof(*m),
+			     name, hookmask, ipv6->proto,
+			     ipv6->invflags & IP6T_INV_PROTO);
+	if (ret)
+		goto err;
+
 	if (m->u.kernel.match->checkentry
-	    && !m->u.kernel.match->checkentry(name, ipv6, m->data,
+	    && !m->u.kernel.match->checkentry(name, ipv6, match,  m->data,
 					      m->u.match_size - sizeof(*m),
 					      hookmask)) {
-		module_put(m->u.kernel.match->me);
 		duprintf("ip_tables: check failed for `%s'.\n",
 			 m->u.kernel.match->name);
-		return -EINVAL;
+		ret = -EINVAL;
+		goto err;
 	}
 
 	(*i)++;
 	return 0;
+err:
+	module_put(m->u.kernel.match->me);
+	return ret;
 }
 
 static struct ip6t_target ip6t_standard_target;
@@ -632,26 +622,32 @@ check_entry(struct ip6t_entry *e, const char *name, unsigned int size,
 	}
 	t->u.kernel.target = target;
 
+	ret = xt_check_target(target, AF_INET6, t->u.target_size - sizeof(*t),
+			      name, e->comefrom, e->ipv6.proto,
+			      e->ipv6.invflags & IP6T_INV_PROTO);
+	if (ret)
+		goto err;
+
 	if (t->u.kernel.target == &ip6t_standard_target) {
 		if (!standard_check(t, size)) {
 			ret = -EINVAL;
 			goto cleanup_matches;
 		}
 	} else if (t->u.kernel.target->checkentry
-		   && !t->u.kernel.target->checkentry(name, e, t->data,
+		   && !t->u.kernel.target->checkentry(name, e, target, t->data,
 						      t->u.target_size
 						      - sizeof(*t),
 						      e->comefrom)) {
-		module_put(t->u.kernel.target->me);
 		duprintf("ip_tables: check failed for `%s'.\n",
 			 t->u.kernel.target->name);
 		ret = -EINVAL;
-		goto cleanup_matches;
+		goto err;
 	}
 
 	(*i)++;
 	return 0;
-
+ err:
+	module_put(t->u.kernel.target->me);
  cleanup_matches:
 	IP6T_MATCH_ITERATE(e, cleanup_match, &j);
 	return ret;
@@ -712,7 +708,7 @@ cleanup_entry(struct ip6t_entry *e, unsigned int *i)
 	IP6T_MATCH_ITERATE(e, cleanup_match, NULL);
 	t = ip6t_get_target(e);
 	if (t->u.kernel.target->destroy)
-		t->u.kernel.target->destroy(t->data,
+		t->u.kernel.target->destroy(t->u.kernel.target, t->data,
 					    t->u.target_size - sizeof(*t));
 	module_put(t->u.kernel.target->me);
 	return 0;
@@ -1333,6 +1329,7 @@ static int
 icmp6_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,
@@ -1365,28 +1362,29 @@ icmp6_match(const struct sk_buff *skb,
 static int
 icmp6_checkentry(const char *tablename,
 	   const void *entry,
+	   const struct xt_match *match,
 	   void *matchinfo,
 	   unsigned int matchsize,
 	   unsigned int hook_mask)
 {
-	const struct ip6t_ip6 *ipv6 = entry;
 	const struct ip6t_icmp *icmpinfo = matchinfo;
 
-	/* Must specify proto == ICMP, and no unknown invflags */
-	return ipv6->proto == IPPROTO_ICMPV6
-		&& !(ipv6->invflags & IP6T_INV_PROTO)
-		&& matchsize == IP6T_ALIGN(sizeof(struct ip6t_icmp))
-		&& !(icmpinfo->invflags & ~IP6T_ICMP_INV);
+	/* Must specify no unknown invflags */
+	return !(icmpinfo->invflags & ~IP6T_ICMP_INV);
 }
 
 /* The built-in targets: standard (NULL) and error. */
 static struct ip6t_target ip6t_standard_target = {
 	.name		= IP6T_STANDARD_TARGET,
+	.targetsize	= sizeof(int),
+	.family		= AF_INET6,
 };
 
 static struct ip6t_target ip6t_error_target = {
 	.name		= IP6T_ERROR_TARGET,
 	.target		= ip6t_error,
+	.targetsize	= IP6T_FUNCTION_MAXNAMELEN,
+	.family		= AF_INET6,
 };
 
 static struct nf_sockopt_ops ip6t_sockopts = {
@@ -1402,7 +1400,10 @@ static struct nf_sockopt_ops ip6t_sockopts = {
 static struct ip6t_match icmp6_matchstruct = {
 	.name		= "icmp6",
 	.match		= &icmp6_match,
-	.checkentry	= &icmp6_checkentry,
+	.matchsize	= sizeof(struct ip6t_icmp),
+	.checkentry	= icmp6_checkentry,
+	.proto		= IPPROTO_ICMPV6,
+	.family		= AF_INET6,
 };
 
 static int __init init(void)
@@ -1412,9 +1413,9 @@ static int __init init(void)
 	xt_proto_init(AF_INET6);
 
 	/* Noone else will be downing sem now, so we won't sleep */
-	xt_register_target(AF_INET6, &ip6t_standard_target);
-	xt_register_target(AF_INET6, &ip6t_error_target);
-	xt_register_match(AF_INET6, &icmp6_matchstruct);
+	xt_register_target(&ip6t_standard_target);
+	xt_register_target(&ip6t_error_target);
+	xt_register_match(&icmp6_matchstruct);
 
 	/* Register setsockopt */
 	ret = nf_register_sockopt(&ip6t_sockopts);
@@ -1431,9 +1432,9 @@ static int __init init(void)
 static void __exit fini(void)
 {
 	nf_unregister_sockopt(&ip6t_sockopts);
-	xt_unregister_match(AF_INET6, &icmp6_matchstruct);
-	xt_unregister_target(AF_INET6, &ip6t_error_target);
-	xt_unregister_target(AF_INET6, &ip6t_standard_target);
+	xt_unregister_match(&icmp6_matchstruct);
+	xt_unregister_target(&ip6t_error_target);
+	xt_unregister_target(&ip6t_standard_target);
 	xt_proto_fini(AF_INET6);
 }
 
@@ -1515,7 +1516,6 @@ EXPORT_SYMBOL(ip6t_unregister_table);
 EXPORT_SYMBOL(ip6t_do_table);
 EXPORT_SYMBOL(ip6t_ext_hdr);
 EXPORT_SYMBOL(ipv6_find_hdr);
-EXPORT_SYMBOL(ip6_masked_addrcmp);
 
 module_init(init);
 module_exit(fini);
diff --git a/net/ipv6/netfilter/ip6t_HL.c b/net/ipv6/netfilter/ip6t_HL.c
index 306200c..da14c6d 100644
--- a/net/ipv6/netfilter/ip6t_HL.c
+++ b/net/ipv6/netfilter/ip6t_HL.c
@@ -21,6 +21,7 @@ static unsigned int ip6t_hl_target(struct sk_buff **pskb,
 				   const struct net_device *in,
 				   const struct net_device *out,
 				   unsigned int hooknum,
+				   const struct xt_target *target,
 				   const void *targinfo, void *userinfo)
 {
 	struct ipv6hdr *ip6h;
@@ -63,43 +64,31 @@ static unsigned int ip6t_hl_target(struct sk_buff **pskb,
 
 static int ip6t_hl_checkentry(const char *tablename,
 		const void *entry,
+		const struct xt_target *target,
 		void *targinfo,
 		unsigned int targinfosize,
 		unsigned int hook_mask)
 {
 	struct ip6t_HL_info *info = targinfo;
 
-	if (targinfosize != IP6T_ALIGN(sizeof(struct ip6t_HL_info))) {
-		printk(KERN_WARNING "ip6t_HL: targinfosize %u != %Zu\n",
-				targinfosize,
-				IP6T_ALIGN(sizeof(struct ip6t_HL_info)));
-		return 0;	
-	}	
-
-	if (strcmp(tablename, "mangle")) {
-		printk(KERN_WARNING "ip6t_HL: can only be called from "
-			"\"mangle\" table, not \"%s\"\n", tablename);
-		return 0;
-	}
-
 	if (info->mode > IP6T_HL_MAXMODE) {
 		printk(KERN_WARNING "ip6t_HL: invalid or unknown Mode %u\n", 
 			info->mode);
 		return 0;
 	}
-
 	if ((info->mode != IP6T_HL_SET) && (info->hop_limit == 0)) {
 		printk(KERN_WARNING "ip6t_HL: increment/decrement doesn't "
 			"make sense with value 0\n");
 		return 0;
 	}
-	
 	return 1;
 }
 
 static struct ip6t_target ip6t_HL = { 
 	.name 		= "HL", 
 	.target		= ip6t_hl_target, 
+	.targetsize	= sizeof(struct ip6t_HL_info),
+	.table		= "mangle",
 	.checkentry	= ip6t_hl_checkentry, 
 	.me		= THIS_MODULE
 };
diff --git a/net/ipv6/netfilter/ip6t_LOG.c b/net/ipv6/netfilter/ip6t_LOG.c
index 6b930ef..07c6bcb 100644
--- a/net/ipv6/netfilter/ip6t_LOG.c
+++ b/net/ipv6/netfilter/ip6t_LOG.c
@@ -426,6 +426,7 @@ ip6t_log_target(struct sk_buff **pskb,
 		const struct net_device *in,
 		const struct net_device *out,
 		unsigned int hooknum,
+		const struct xt_target *target,
 		const void *targinfo,
 		void *userinfo)
 {
@@ -449,35 +450,29 @@ ip6t_log_target(struct sk_buff **pskb,
 
 static int ip6t_log_checkentry(const char *tablename,
 			       const void *entry,
+			       const struct xt_target *target,
 			       void *targinfo,
 			       unsigned int targinfosize,
 			       unsigned int hook_mask)
 {
 	const struct ip6t_log_info *loginfo = targinfo;
 
-	if (targinfosize != IP6T_ALIGN(sizeof(struct ip6t_log_info))) {
-		DEBUGP("LOG: targinfosize %u != %u\n",
-		       targinfosize, IP6T_ALIGN(sizeof(struct ip6t_log_info)));
-		return 0;
-	}
-
 	if (loginfo->level >= 8) {
 		DEBUGP("LOG: level %u >= 8\n", loginfo->level);
 		return 0;
 	}
-
 	if (loginfo->prefix[sizeof(loginfo->prefix)-1] != '\0') {
 		DEBUGP("LOG: prefix term %i\n",
 		       loginfo->prefix[sizeof(loginfo->prefix)-1]);
 		return 0;
 	}
-
 	return 1;
 }
 
 static struct ip6t_target ip6t_log_reg = {
 	.name 		= "LOG",
 	.target 	= ip6t_log_target, 
+	.targetsize	= sizeof(struct ip6t_log_info),
 	.checkentry	= ip6t_log_checkentry, 
 	.me 		= THIS_MODULE,
 };
diff --git a/net/ipv6/netfilter/ip6t_REJECT.c b/net/ipv6/netfilter/ip6t_REJECT.c
index 0e6d1d4..ddfa385 100644
--- a/net/ipv6/netfilter/ip6t_REJECT.c
+++ b/net/ipv6/netfilter/ip6t_REJECT.c
@@ -179,6 +179,7 @@ static unsigned int reject6_target(struct sk_buff **pskb,
 			   const struct net_device *in,
 			   const struct net_device *out,
 			   unsigned int hooknum,
+			   const struct xt_target *target,
 			   const void *targinfo,
 			   void *userinfo)
 {
@@ -221,6 +222,7 @@ static unsigned int reject6_target(struct sk_buff **pskb,
 
 static int check(const char *tablename,
 		 const void *entry,
+		 const struct xt_target *target,
 		 void *targinfo,
 		 unsigned int targinfosize,
 		 unsigned int hook_mask)
@@ -228,24 +230,6 @@ static int check(const char *tablename,
  	const struct ip6t_reject_info *rejinfo = targinfo;
 	const struct ip6t_entry *e = entry;
 
- 	if (targinfosize != IP6T_ALIGN(sizeof(struct ip6t_reject_info))) {
-  		DEBUGP("ip6t_REJECT: targinfosize %u != 0\n", targinfosize);
-  		return 0;
-  	}
-
-	/* Only allow these for packet filtering. */
-	if (strcmp(tablename, "filter") != 0) {
-		DEBUGP("ip6t_REJECT: bad table `%s'.\n", tablename);
-		return 0;
-	}
-
-	if ((hook_mask & ~((1 << NF_IP6_LOCAL_IN)
-			   | (1 << NF_IP6_FORWARD)
-			   | (1 << NF_IP6_LOCAL_OUT))) != 0) {
-		DEBUGP("ip6t_REJECT: bad hook mask %X\n", hook_mask);
-		return 0;
-	}
-
 	if (rejinfo->with == IP6T_ICMP6_ECHOREPLY) {
 		printk("ip6t_REJECT: ECHOREPLY is not supported.\n");
 		return 0;
@@ -257,13 +241,16 @@ static int check(const char *tablename,
 			return 0;
 		}
 	}
-
 	return 1;
 }
 
 static struct ip6t_target ip6t_reject_reg = {
 	.name		= "REJECT",
 	.target		= reject6_target,
+	.targetsize	= sizeof(struct ip6t_reject_info),
+	.table		= "filter",
+	.hooks		= (1 << NF_IP6_LOCAL_IN) | (1 << NF_IP6_FORWARD) |
+			  (1 << NF_IP6_LOCAL_OUT),
 	.checkentry	= check,
 	.me		= THIS_MODULE
 };
diff --git a/net/ipv6/netfilter/ip6t_ah.c b/net/ipv6/netfilter/ip6t_ah.c
index 219a303..178f6fb 100644
--- a/net/ipv6/netfilter/ip6t_ah.c
+++ b/net/ipv6/netfilter/ip6t_ah.c
@@ -44,6 +44,7 @@ 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,
@@ -99,17 +100,13 @@ match(const struct sk_buff *skb,
 static int
 checkentry(const char *tablename,
           const void *entry,
+	  const struct xt_match *match,
           void *matchinfo,
           unsigned int matchinfosize,
           unsigned int hook_mask)
 {
 	const struct ip6t_ah *ahinfo = matchinfo;
 
-	if (matchinfosize != IP6T_ALIGN(sizeof(struct ip6t_ah))) {
-		DEBUGP("ip6t_ah: matchsize %u != %u\n",
-		       matchinfosize, IP6T_ALIGN(sizeof(struct ip6t_ah)));
-		return 0;
-	}
 	if (ahinfo->invflags & ~IP6T_AH_INV_MASK) {
 		DEBUGP("ip6t_ah: unknown flags %X\n", ahinfo->invflags);
 		return 0;
@@ -119,8 +116,9 @@ checkentry(const char *tablename,
 
 static struct ip6t_match ah_match = {
 	.name		= "ah",
-	.match		= &match,
-	.checkentry	= &checkentry,
+	.match		= match,
+	.matchsize	= sizeof(struct ip6t_ah),
+	.checkentry	= checkentry,
 	.me		= THIS_MODULE,
 };
 
diff --git a/net/ipv6/netfilter/ip6t_dst.c b/net/ipv6/netfilter/ip6t_dst.c
index b4c153a..e97a702 100644
--- a/net/ipv6/netfilter/ip6t_dst.c
+++ b/net/ipv6/netfilter/ip6t_dst.c
@@ -55,6 +55,7 @@ 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,
@@ -179,22 +180,17 @@ match(const struct sk_buff *skb,
 static int
 checkentry(const char *tablename,
 	   const void *info,
+	   const struct xt_match *match,
 	   void *matchinfo,
 	   unsigned int matchinfosize,
 	   unsigned int hook_mask)
 {
 	const struct ip6t_opts *optsinfo = matchinfo;
 
-	if (matchinfosize != IP6T_ALIGN(sizeof(struct ip6t_opts))) {
-		DEBUGP("ip6t_opts: matchsize %u != %u\n",
-		       matchinfosize, IP6T_ALIGN(sizeof(struct ip6t_opts)));
-		return 0;
-	}
 	if (optsinfo->invflags & ~IP6T_OPTS_INV_MASK) {
 		DEBUGP("ip6t_opts: unknown flags %X\n", optsinfo->invflags);
 		return 0;
 	}
-
 	return 1;
 }
 
@@ -204,8 +200,9 @@ static struct ip6t_match opts_match = {
 #else
 	.name		= "dst",
 #endif
-	.match		= &match,
-	.checkentry	= &checkentry,
+	.match		= match,
+	.matchsize	= sizeof(struct ip6t_opts),
+	.checkentry	= checkentry,
 	.me		= THIS_MODULE,
 };
 
diff --git a/net/ipv6/netfilter/ip6t_esp.c b/net/ipv6/netfilter/ip6t_esp.c
index 724285d..540b8bf 100644
--- a/net/ipv6/netfilter/ip6t_esp.c
+++ b/net/ipv6/netfilter/ip6t_esp.c
@@ -44,6 +44,7 @@ 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,
@@ -77,17 +78,13 @@ match(const struct sk_buff *skb,
 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 (matchinfosize != IP6T_ALIGN(sizeof(struct ip6t_esp))) {
-		DEBUGP("ip6t_esp: matchsize %u != %u\n",
-			 matchinfosize, IP6T_ALIGN(sizeof(struct ip6t_esp)));
-		return 0;
-	}
 	if (espinfo->invflags & ~IP6T_ESP_INV_MASK) {
 		DEBUGP("ip6t_esp: unknown flags %X\n",
 			 espinfo->invflags);
@@ -98,8 +95,9 @@ checkentry(const char *tablename,
 
 static struct ip6t_match esp_match = {
 	.name		= "esp",
-	.match		= &match,
-	.checkentry	= &checkentry,
+	.match		= match,
+	.matchsize	= sizeof(struct ip6t_esp),
+	.checkentry	= checkentry,
 	.me		= THIS_MODULE,
 };
 
diff --git a/net/ipv6/netfilter/ip6t_eui64.c b/net/ipv6/netfilter/ip6t_eui64.c
index 27396ac..d4b0bad 100644
--- a/net/ipv6/netfilter/ip6t_eui64.c
+++ b/net/ipv6/netfilter/ip6t_eui64.c
@@ -22,6 +22,7 @@ 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,
@@ -60,30 +61,12 @@ match(const struct sk_buff *skb,
 	return 0;
 }
 
-static int
-ip6t_eui64_checkentry(const char *tablename,
-		      const void *ip,
-		      void *matchinfo,
-		      unsigned int matchsize,
-		      unsigned int hook_mask)
-{
-	if (hook_mask
-	    & ~((1 << NF_IP6_PRE_ROUTING) | (1 << NF_IP6_LOCAL_IN) |
-		(1 << NF_IP6_FORWARD))) {
-		printk("ip6t_eui64: only valid for PRE_ROUTING, LOCAL_IN or FORWARD.\n");
-		return 0;
-	}
-
-	if (matchsize != IP6T_ALIGN(sizeof(int)))
-		return 0;
-
-	return 1;
-}
-
 static struct ip6t_match eui64_match = {
 	.name		= "eui64",
-	.match		= &match,
-	.checkentry	= &ip6t_eui64_checkentry,
+	.match		= match,
+	.matchsize	= sizeof(int),
+	.hooks		= (1 << NF_IP6_PRE_ROUTING) | (1 << NF_IP6_LOCAL_IN) |
+			  (1 << NF_IP6_FORWARD),
 	.me		= THIS_MODULE,
 };
 
diff --git a/net/ipv6/netfilter/ip6t_frag.c b/net/ipv6/netfilter/ip6t_frag.c
index 4c14125..4c41e14 100644
--- a/net/ipv6/netfilter/ip6t_frag.c
+++ b/net/ipv6/netfilter/ip6t_frag.c
@@ -43,6 +43,7 @@ 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,
@@ -116,29 +117,25 @@ match(const struct sk_buff *skb,
 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_frag *fraginfo = matchinfo;
 
-	if (matchinfosize != IP6T_ALIGN(sizeof(struct ip6t_frag))) {
-		DEBUGP("ip6t_frag: matchsize %u != %u\n",
-		       matchinfosize, IP6T_ALIGN(sizeof(struct ip6t_frag)));
-		return 0;
-	}
 	if (fraginfo->invflags & ~IP6T_FRAG_INV_MASK) {
 		DEBUGP("ip6t_frag: unknown flags %X\n", fraginfo->invflags);
 		return 0;
 	}
-
 	return 1;
 }
 
 static struct ip6t_match frag_match = {
 	.name		= "frag",
-	.match		= &match,
-	.checkentry	= &checkentry,
+	.match		= match,
+	.matchsize	= sizeof(struct ip6t_frag),
+	.checkentry	= checkentry,
 	.me		= THIS_MODULE,
 };
 
diff --git a/net/ipv6/netfilter/ip6t_hbh.c b/net/ipv6/netfilter/ip6t_hbh.c
index 37a8474..b4a1fdf 100644
--- a/net/ipv6/netfilter/ip6t_hbh.c
+++ b/net/ipv6/netfilter/ip6t_hbh.c
@@ -55,6 +55,7 @@ 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,
@@ -179,22 +180,17 @@ match(const struct sk_buff *skb,
 static int
 checkentry(const char *tablename,
 	   const void *entry,
+	   const struct xt_match *match,
 	   void *matchinfo,
 	   unsigned int matchinfosize,
 	   unsigned int hook_mask)
 {
 	const struct ip6t_opts *optsinfo = matchinfo;
 
-	if (matchinfosize != IP6T_ALIGN(sizeof(struct ip6t_opts))) {
-		DEBUGP("ip6t_opts: matchsize %u != %u\n",
-		       matchinfosize, IP6T_ALIGN(sizeof(struct ip6t_opts)));
-		return 0;
-	}
 	if (optsinfo->invflags & ~IP6T_OPTS_INV_MASK) {
 		DEBUGP("ip6t_opts: unknown flags %X\n", optsinfo->invflags);
 		return 0;
 	}
-
 	return 1;
 }
 
@@ -204,8 +200,9 @@ static struct ip6t_match opts_match = {
 #else
 	.name		= "dst",
 #endif
-	.match		= &match,
-	.checkentry	= &checkentry,
+	.match		= match,
+	.matchsize	= sizeof(struct ip6t_opts),
+	.checkentry	= checkentry,
 	.me		= THIS_MODULE,
 };
 
diff --git a/net/ipv6/netfilter/ip6t_hl.c b/net/ipv6/netfilter/ip6t_hl.c
index c5d9079..3740557 100644
--- a/net/ipv6/netfilter/ip6t_hl.c
+++ b/net/ipv6/netfilter/ip6t_hl.c
@@ -18,10 +18,10 @@ MODULE_AUTHOR("Maciej Soltysiak <solt@dns.toxicfilms.tv>");
 MODULE_DESCRIPTION("IP tables Hop Limit matching module");
 MODULE_LICENSE("GPL");
 
-static int match(const struct sk_buff *skb, const struct net_device *in,
-		 const struct net_device *out, const void *matchinfo,
-		 int offset, unsigned int protoff,
-		 int *hotdrop)
+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)
 {
 	const struct ip6t_hl_info *info = matchinfo;
 	const struct ipv6hdr *ip6h = skb->nh.ipv6h;
@@ -48,20 +48,10 @@ static int match(const struct sk_buff *skb, const struct net_device *in,
 	return 0;
 }
 
-static int checkentry(const char *tablename, const void *entry,
-		      void *matchinfo, unsigned int matchsize,
-		      unsigned int hook_mask)
-{
-	if (matchsize != IP6T_ALIGN(sizeof(struct ip6t_hl_info)))
-		return 0;
-
-	return 1;
-}
-
 static struct ip6t_match hl_match = {
 	.name		= "hl",
-	.match		= &match,
-	.checkentry	= &checkentry,
+	.match		= match,
+	.matchsize	= sizeof(struct ip6t_hl_info),
 	.me		= THIS_MODULE,
 };
 
diff --git a/net/ipv6/netfilter/ip6t_ipv6header.c b/net/ipv6/netfilter/ip6t_ipv6header.c
index 83ad6b2..9375eeb 100644
--- a/net/ipv6/netfilter/ip6t_ipv6header.c
+++ b/net/ipv6/netfilter/ip6t_ipv6header.c
@@ -29,6 +29,7 @@ static int
 ipv6header_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,
@@ -125,17 +126,13 @@ ipv6header_match(const struct sk_buff *skb,
 static int
 ipv6header_checkentry(const char *tablename,
 		      const void *ip,
+		      const struct xt_match *match,
 		      void *matchinfo,
 		      unsigned int matchsize,
 		      unsigned int hook_mask)
 {
 	const struct ip6t_ipv6header_info *info = matchinfo;
 
-	/* Check for obvious errors */
-	/* This match is valid in all hooks! */
-	if (matchsize != IP6T_ALIGN(sizeof(struct ip6t_ipv6header_info)))
-		return 0;
-
 	/* invflags is 0 or 0xff in hard mode */
 	if ((!info->modeflag) && info->invflags != 0x00 &&
 	    info->invflags != 0xFF)
@@ -147,6 +144,7 @@ ipv6header_checkentry(const char *tablename,
 static struct ip6t_match ip6t_ipv6header_match = {
 	.name		= "ipv6header",
 	.match		= &ipv6header_match,
+	.matchsize	= sizeof(struct ip6t_ipv6header_info),
 	.checkentry	= &ipv6header_checkentry,
 	.destroy	= NULL,
 	.me		= THIS_MODULE,
diff --git a/net/ipv6/netfilter/ip6t_multiport.c b/net/ipv6/netfilter/ip6t_multiport.c
index 49f7829..752b65d 100644
--- a/net/ipv6/netfilter/ip6t_multiport.c
+++ b/net/ipv6/netfilter/ip6t_multiport.c
@@ -51,6 +51,7 @@ 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,
@@ -85,6 +86,7 @@ match(const struct sk_buff *skb,
 static int
 checkentry(const char *tablename,
 	   const void *info,
+	   const struct xt_match *match,
 	   void *matchinfo,
 	   unsigned int matchsize,
 	   unsigned int hook_mask)
@@ -92,13 +94,9 @@ checkentry(const char *tablename,
 	const struct ip6t_ip6 *ip = info;
 	const struct ip6t_multiport *multiinfo = matchinfo;
 
-	if (matchsize != IP6T_ALIGN(sizeof(struct ip6t_multiport)))
-		return 0;
-
 	/* 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)
-		&& matchsize == IP6T_ALIGN(sizeof(struct ip6t_multiport))
 		&& (multiinfo->flags == IP6T_MULTIPORT_SOURCE
 		    || multiinfo->flags == IP6T_MULTIPORT_DESTINATION
 		    || multiinfo->flags == IP6T_MULTIPORT_EITHER)
@@ -107,8 +105,9 @@ checkentry(const char *tablename,
 
 static struct ip6t_match multiport_match = {
 	.name		= "multiport",
-	.match		= &match,
-	.checkentry	= &checkentry,
+	.match		= match,
+	.matchsize	= sizeof(struct ip6t_multiport),
+	.checkentry	= checkentry,
 	.me		= THIS_MODULE,
 };
 
diff --git a/net/ipv6/netfilter/ip6t_owner.c b/net/ipv6/netfilter/ip6t_owner.c
index 8c8a4c7..e2cee3b 100644
--- a/net/ipv6/netfilter/ip6t_owner.c
+++ b/net/ipv6/netfilter/ip6t_owner.c
@@ -26,6 +26,7 @@ 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,
@@ -54,34 +55,27 @@ match(const struct sk_buff *skb,
 static int
 checkentry(const char *tablename,
 	   const void *ip,
+	   const struct xt_match *match,
 	   void *matchinfo,
 	   unsigned int matchsize,
 	   unsigned int hook_mask)
 {
 	const struct ip6t_owner_info *info = matchinfo;
 
-	if (hook_mask
-	    & ~((1 << NF_IP6_LOCAL_OUT) | (1 << NF_IP6_POST_ROUTING))) {
-		printk("ip6t_owner: only valid for LOCAL_OUT or POST_ROUTING.\n");
-		return 0;
-	}
-
-	if (matchsize != IP6T_ALIGN(sizeof(struct ip6t_owner_info)))
-		return 0;
-
 	if (info->match & (IP6T_OWNER_PID | IP6T_OWNER_SID)) {
 		printk("ipt_owner: pid and sid matching "
 		       "not supported anymore\n");
 		return 0;
 	}
-
 	return 1;
 }
 
 static struct ip6t_match owner_match = {
 	.name		= "owner",
-	.match		= &match,
-	.checkentry	= &checkentry,
+	.match		= match,
+	.matchsize	= sizeof(struct ip6t_owner_info),
+	.hooks		= (1 << NF_IP6_LOCAL_OUT) | (1 << NF_IP6_POST_ROUTING),
+	.checkentry	= checkentry,
 	.me		= THIS_MODULE,
 };
 
diff --git a/net/ipv6/netfilter/ip6t_policy.c b/net/ipv6/netfilter/ip6t_policy.c
deleted file mode 100644
index 3d39ec9..0000000
--- a/net/ipv6/netfilter/ip6t_policy.c
+++ /dev/null
@@ -1,176 +0,0 @@
-/* IP tables module for matching IPsec policy
- *
- * Copyright (c) 2004,2005 Patrick McHardy, <kaber@trash.net>
- *
- * 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/kernel.h>
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/skbuff.h>
-#include <linux/init.h>
-#include <net/xfrm.h>
-
-#include <linux/netfilter_ipv6.h>
-#include <linux/netfilter_ipv6/ip6_tables.h>
-#include <linux/netfilter_ipv6/ip6t_policy.h>
-
-MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
-MODULE_DESCRIPTION("IPtables IPsec policy matching module");
-MODULE_LICENSE("GPL");
-
-
-static inline int
-match_xfrm_state(struct xfrm_state *x, const struct ip6t_policy_elem *e)
-{
-#define MATCH_ADDR(x,y,z)	(!e->match.x ||				       \
-				 ((!ip6_masked_addrcmp(&e->x.a6, &e->y.a6, z)) \
-				  ^ e->invert.x))
-#define MATCH(x,y)		(!e->match.x || ((e->x == (y)) ^ e->invert.x))
-	
-	return MATCH_ADDR(saddr, smask, (struct in6_addr *)&x->props.saddr.a6) &&
-	       MATCH_ADDR(daddr, dmask, (struct in6_addr *)&x->id.daddr.a6) &&
-	       MATCH(proto, x->id.proto) &&
-	       MATCH(mode, x->props.mode) &&
-	       MATCH(spi, x->id.spi) &&
-	       MATCH(reqid, x->props.reqid);
-}
-
-static int
-match_policy_in(const struct sk_buff *skb, const struct ip6t_policy_info *info)
-{
-	const struct ip6t_policy_elem *e;
-	struct sec_path *sp = skb->sp;
-	int strict = info->flags & IP6T_POLICY_MATCH_STRICT;
-	int i, pos;
-
-	if (sp == NULL)
-		return -1;
-	if (strict && info->len != sp->len)
-		return 0;
-
-	for (i = sp->len - 1; i >= 0; i--) {
-		pos = strict ? i - sp->len + 1 : 0;
-		if (pos >= info->len)
-			return 0;
-		e = &info->pol[pos];
-
-		if (match_xfrm_state(sp->x[i].xvec, e)) {
-			if (!strict)
-				return 1;
-		} else if (strict)
-			return 0;
-	}
-
-	return strict ? 1 : 0;
-}
-
-static int
-match_policy_out(const struct sk_buff *skb, const struct ip6t_policy_info *info)
-{
-	const struct ip6t_policy_elem *e;
-	struct dst_entry *dst = skb->dst;
-	int strict = info->flags & IP6T_POLICY_MATCH_STRICT;
-	int i, pos;
-
-	if (dst->xfrm == NULL)
-		return -1;
-
-	for (i = 0; dst && dst->xfrm; dst = dst->child, i++) {
-		pos = strict ? i : 0;
-		if (pos >= info->len)
-			return 0;
-		e = &info->pol[pos];
-
-		if (match_xfrm_state(dst->xfrm, e)) {
-			if (!strict)
-				return 1;
-		} else if (strict)
-			return 0;
-	}
-
-	return strict ? i == info->len : 0;
-}
-
-static int match(const struct sk_buff *skb,
-                 const struct net_device *in,
-                 const struct net_device *out,
-                 const void *matchinfo,
-		 int offset,
-		 unsigned int protoff,
-		 int *hotdrop)
-{
-	const struct ip6t_policy_info *info = matchinfo;
-	int ret;
-
-	if (info->flags & IP6T_POLICY_MATCH_IN)
-		ret = match_policy_in(skb, info);
-	else
-		ret = match_policy_out(skb, info);
-
-	if (ret < 0)
-		ret = info->flags & IP6T_POLICY_MATCH_NONE ? 1 : 0;
-	else if (info->flags & IP6T_POLICY_MATCH_NONE)
-		ret = 0;
-
-	return ret;
-}
-
-static int checkentry(const char *tablename, const void *ip_void,
-                      void *matchinfo, unsigned int matchsize,
-                      unsigned int hook_mask)
-{
-	struct ip6t_policy_info *info = matchinfo;
-
-	if (matchsize != IP6T_ALIGN(sizeof(*info))) {
-		printk(KERN_ERR "ip6t_policy: matchsize %u != %zu\n",
-		       matchsize, IP6T_ALIGN(sizeof(*info)));
-		return 0;
-	}
-	if (!(info->flags & (IP6T_POLICY_MATCH_IN|IP6T_POLICY_MATCH_OUT))) {
-		printk(KERN_ERR "ip6t_policy: neither incoming nor "
-		                "outgoing policy selected\n");
-		return 0;
-	}
-	if (hook_mask & (1 << NF_IP6_PRE_ROUTING | 1 << NF_IP6_LOCAL_IN)
-	    && info->flags & IP6T_POLICY_MATCH_OUT) {
-		printk(KERN_ERR "ip6t_policy: output policy not valid in "
-		                "PRE_ROUTING and INPUT\n");
-		return 0;
-	}
-	if (hook_mask & (1 << NF_IP6_POST_ROUTING | 1 << NF_IP6_LOCAL_OUT)
-	    && info->flags & IP6T_POLICY_MATCH_IN) {
-		printk(KERN_ERR "ip6t_policy: input policy not valid in "
-		                "POST_ROUTING and OUTPUT\n");
-		return 0;
-	}
-	if (info->len > IP6T_POLICY_MAX_ELEM) {
-		printk(KERN_ERR "ip6t_policy: too many policy elements\n");
-		return 0;
-	}
-
-	return 1;
-}
-
-static struct ip6t_match policy_match = {
-	.name		= "policy",
-	.match		= match,
-	.checkentry 	= checkentry,
-	.me		= THIS_MODULE,
-};
-
-static int __init init(void)
-{
-	return ip6t_register_match(&policy_match);
-}
-
-static void __exit fini(void)
-{
-	ip6t_unregister_match(&policy_match);
-}
-
-module_init(init);
-module_exit(fini);
diff --git a/net/ipv6/netfilter/ip6t_rt.c b/net/ipv6/netfilter/ip6t_rt.c
index 8f82476..4c6b55b 100644
--- a/net/ipv6/netfilter/ip6t_rt.c
+++ b/net/ipv6/netfilter/ip6t_rt.c
@@ -45,6 +45,7 @@ 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,
@@ -194,17 +195,13 @@ match(const struct sk_buff *skb,
 static int
 checkentry(const char *tablename,
 	   const void *entry,
+	   const struct xt_match *match,
 	   void *matchinfo,
 	   unsigned int matchinfosize,
 	   unsigned int hook_mask)
 {
 	const struct ip6t_rt *rtinfo = matchinfo;
 
-	if (matchinfosize != IP6T_ALIGN(sizeof(struct ip6t_rt))) {
-		DEBUGP("ip6t_rt: matchsize %u != %u\n",
-		       matchinfosize, IP6T_ALIGN(sizeof(struct ip6t_rt)));
-		return 0;
-	}
 	if (rtinfo->invflags & ~IP6T_RT_INV_MASK) {
 		DEBUGP("ip6t_rt: unknown flags %X\n", rtinfo->invflags);
 		return 0;
@@ -222,8 +219,9 @@ checkentry(const char *tablename,
 
 static struct ip6t_match rt_match = {
 	.name		= "rt",
-	.match		= &match,
-	.checkentry	= &checkentry,
+	.match		= match,
+	.matchsize	= sizeof(struct ip6t_rt),
+	.checkentry	= checkentry,
 	.me		= THIS_MODULE,
 };
 
diff --git a/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c b/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
index ac702a2..c16f629 100644
--- a/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
+++ b/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
@@ -179,31 +179,36 @@ static unsigned int ipv6_confirm(unsigned int hooknum,
 				 int (*okfn)(struct sk_buff *))
 {
 	struct nf_conn *ct;
+	struct nf_conn_help *help;
 	enum ip_conntrack_info ctinfo;
+	unsigned int ret, protoff;
+	unsigned int extoff = (u8*)((*pskb)->nh.ipv6h + 1)
+			      - (*pskb)->data;
+	unsigned char pnum = (*pskb)->nh.ipv6h->nexthdr;
+
 
 	/* This is where we call the helper: as the packet goes out. */
 	ct = nf_ct_get(*pskb, &ctinfo);
-	if (ct && ct->helper) {
-		unsigned int ret, protoff;
-		unsigned int extoff = (u8*)((*pskb)->nh.ipv6h + 1)
-				      - (*pskb)->data;
-		unsigned char pnum = (*pskb)->nh.ipv6h->nexthdr;
-
-		protoff = nf_ct_ipv6_skip_exthdr(*pskb, extoff, &pnum,
-						 (*pskb)->len - extoff);
-		if (protoff < 0 || protoff > (*pskb)->len ||
-		    pnum == NEXTHDR_FRAGMENT) {
-			DEBUGP("proto header not found\n");
-			return NF_ACCEPT;
-		}
+	if (!ct)
+		goto out;
 
-		ret = ct->helper->help(pskb, protoff, ct, ctinfo);
-		if (ret != NF_ACCEPT)
-			return ret;
+	help = nfct_help(ct);
+	if (!help || !help->helper)
+		goto out;
+
+	protoff = nf_ct_ipv6_skip_exthdr(*pskb, extoff, &pnum,
+					 (*pskb)->len - extoff);
+	if (protoff < 0 || protoff > (*pskb)->len ||
+	    pnum == NEXTHDR_FRAGMENT) {
+		DEBUGP("proto header not found\n");
+		return NF_ACCEPT;
 	}
 
+	ret = help->helper->help(pskb, protoff, ct, ctinfo);
+	if (ret != NF_ACCEPT)
+		return ret;
+out:
 	/* We've seen it coming out the other side: confirm it */
-
 	return nf_conntrack_confirm(pskb);
 }
 
@@ -579,6 +584,7 @@ static int init_or_cleanup(int init)
 	return ret;
 }
 
+MODULE_ALIAS("nf_conntrack-" __stringify(AF_INET6));
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Yasuyuki KOZAKAI @USAGI <yasuyuki.kozakai@toshiba.co.jp>");
 
diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c
index 84ef9a1..3e31903 100644
--- a/net/ipv6/netfilter/nf_conntrack_reasm.c
+++ b/net/ipv6/netfilter/nf_conntrack_reasm.c
@@ -313,8 +313,8 @@ static struct nf_ct_frag6_queue *nf_ct_frag6_intern(unsigned int hash,
 #ifdef CONFIG_SMP
 	hlist_for_each_entry(fq, n, &nf_ct_frag6_hash[hash], list) {
 		if (fq->id == fq_in->id && 
-		    !ipv6_addr_cmp(&fq_in->saddr, &fq->saddr) &&
-		    !ipv6_addr_cmp(&fq_in->daddr, &fq->daddr)) {
+		    ipv6_addr_equal(&fq_in->saddr, &fq->saddr) &&
+		    ipv6_addr_equal(&fq_in->daddr, &fq->daddr)) {
 			atomic_inc(&fq->refcnt);
 			write_unlock(&nf_ct_frag6_lock);
 			fq_in->last_in |= COMPLETE;
@@ -376,8 +376,8 @@ fq_find(u32 id, struct in6_addr *src, struct in6_addr *dst)
 	read_lock(&nf_ct_frag6_lock);
 	hlist_for_each_entry(fq, n, &nf_ct_frag6_hash[hash], list) {
 		if (fq->id == id && 
-		    !ipv6_addr_cmp(src, &fq->saddr) &&
-		    !ipv6_addr_cmp(dst, &fq->daddr)) {
+		    ipv6_addr_equal(src, &fq->saddr) &&
+		    ipv6_addr_equal(dst, &fq->daddr)) {
 			atomic_inc(&fq->refcnt);
 			read_unlock(&nf_ct_frag6_lock);
 			return fq;
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index ae20a0e..fa1ce0a 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -859,29 +859,12 @@ static int rawv6_geticmpfilter(struct sock *sk, int level, int optname,
 }
 
 
-static int rawv6_setsockopt(struct sock *sk, int level, int optname, 
+static int do_rawv6_setsockopt(struct sock *sk, int level, int optname,
 			    char __user *optval, int optlen)
 {
 	struct raw6_sock *rp = raw6_sk(sk);
 	int val;
 
-	switch(level) {
-		case SOL_RAW:
-			break;
-
-		case SOL_ICMPV6:
-			if (inet_sk(sk)->num != IPPROTO_ICMPV6)
-				return -EOPNOTSUPP;
-			return rawv6_seticmpfilter(sk, level, optname, optval,
-						   optlen);
-		case SOL_IPV6:
-			if (optname == IPV6_CHECKSUM)
-				break;
-		default:
-			return ipv6_setsockopt(sk, level, optname, optval,
-					       optlen);
-	};
-
   	if (get_user(val, (int __user *)optval))
 		return -EFAULT;
 
@@ -906,12 +889,9 @@ static int rawv6_setsockopt(struct sock *sk, int level, int optname,
 	}
 }
 
-static int rawv6_getsockopt(struct sock *sk, int level, int optname, 
-			    char __user *optval, int __user *optlen)
+static int rawv6_setsockopt(struct sock *sk, int level, int optname,
+			  char __user *optval, int optlen)
 {
-	struct raw6_sock *rp = raw6_sk(sk);
-	int val, len;
-
 	switch(level) {
 		case SOL_RAW:
 			break;
@@ -919,15 +899,45 @@ static int rawv6_getsockopt(struct sock *sk, int level, int optname,
 		case SOL_ICMPV6:
 			if (inet_sk(sk)->num != IPPROTO_ICMPV6)
 				return -EOPNOTSUPP;
-			return rawv6_geticmpfilter(sk, level, optname, optval,
+			return rawv6_seticmpfilter(sk, level, optname, optval,
 						   optlen);
 		case SOL_IPV6:
 			if (optname == IPV6_CHECKSUM)
 				break;
 		default:
-			return ipv6_getsockopt(sk, level, optname, optval,
+			return ipv6_setsockopt(sk, level, optname, optval,
 					       optlen);
 	};
+	return do_rawv6_setsockopt(sk, level, optname, optval, optlen);
+}
+
+#ifdef CONFIG_COMPAT
+static int compat_rawv6_setsockopt(struct sock *sk, int level, int optname,
+				   char __user *optval, int optlen)
+{
+	switch (level) {
+	case SOL_RAW:
+		break;
+	case SOL_ICMPV6:
+		if (inet_sk(sk)->num != IPPROTO_ICMPV6)
+			return -EOPNOTSUPP;
+		return rawv6_seticmpfilter(sk, level, optname, optval, optlen);
+	case SOL_IPV6:
+		if (optname == IPV6_CHECKSUM)
+			break;
+	default:
+		return compat_ipv6_setsockopt(sk, level, optname,
+					      optval, optlen);
+	};
+	return do_rawv6_setsockopt(sk, level, optname, optval, optlen);
+}
+#endif
+
+static int do_rawv6_getsockopt(struct sock *sk, int level, int optname,
+			    char __user *optval, int __user *optlen)
+{
+	struct raw6_sock *rp = raw6_sk(sk);
+	int val, len;
 
 	if (get_user(len,optlen))
 		return -EFAULT;
@@ -953,6 +963,50 @@ static int rawv6_getsockopt(struct sock *sk, int level, int optname,
 	return 0;
 }
 
+static int rawv6_getsockopt(struct sock *sk, int level, int optname,
+			  char __user *optval, int __user *optlen)
+{
+	switch(level) {
+		case SOL_RAW:
+			break;
+
+		case SOL_ICMPV6:
+			if (inet_sk(sk)->num != IPPROTO_ICMPV6)
+				return -EOPNOTSUPP;
+			return rawv6_geticmpfilter(sk, level, optname, optval,
+						   optlen);
+		case SOL_IPV6:
+			if (optname == IPV6_CHECKSUM)
+				break;
+		default:
+			return ipv6_getsockopt(sk, level, optname, optval,
+					       optlen);
+	};
+	return do_rawv6_getsockopt(sk, level, optname, optval, optlen);
+}
+
+#ifdef CONFIG_COMPAT
+static int compat_rawv6_getsockopt(struct sock *sk, int level, int optname,
+				   char __user *optval, int __user *optlen)
+{
+	switch (level) {
+	case SOL_RAW:
+		break;
+	case SOL_ICMPV6:
+		if (inet_sk(sk)->num != IPPROTO_ICMPV6)
+			return -EOPNOTSUPP;
+		return rawv6_geticmpfilter(sk, level, optname, optval, optlen);
+	case SOL_IPV6:
+		if (optname == IPV6_CHECKSUM)
+			break;
+	default:
+		return compat_ipv6_getsockopt(sk, level, optname,
+					      optval, optlen);
+	};
+	return do_rawv6_getsockopt(sk, level, optname, optval, optlen);
+}
+#endif
+
 static int rawv6_ioctl(struct sock *sk, int cmd, unsigned long arg)
 {
 	switch(cmd) {
@@ -998,23 +1052,27 @@ static int rawv6_init_sk(struct sock *sk)
 }
 
 struct proto rawv6_prot = {
-	.name =		"RAWv6",
-	.owner =	THIS_MODULE,
-	.close =	rawv6_close,
-	.connect =	ip6_datagram_connect,
-	.disconnect =	udp_disconnect,
-	.ioctl =	rawv6_ioctl,
-	.init =		rawv6_init_sk,
-	.destroy =	inet6_destroy_sock,
-	.setsockopt =	rawv6_setsockopt,
-	.getsockopt =	rawv6_getsockopt,
-	.sendmsg =	rawv6_sendmsg,
-	.recvmsg =	rawv6_recvmsg,
-	.bind =		rawv6_bind,
-	.backlog_rcv =	rawv6_rcv_skb,
-	.hash =		raw_v6_hash,
-	.unhash =	raw_v6_unhash,
-	.obj_size =	sizeof(struct raw6_sock),
+	.name		   = "RAWv6",
+	.owner		   = THIS_MODULE,
+	.close		   = rawv6_close,
+	.connect	   = ip6_datagram_connect,
+	.disconnect	   = udp_disconnect,
+	.ioctl		   = rawv6_ioctl,
+	.init		   = rawv6_init_sk,
+	.destroy	   = inet6_destroy_sock,
+	.setsockopt	   = rawv6_setsockopt,
+	.getsockopt	   = rawv6_getsockopt,
+	.sendmsg	   = rawv6_sendmsg,
+	.recvmsg	   = rawv6_recvmsg,
+	.bind		   = rawv6_bind,
+	.backlog_rcv	   = rawv6_rcv_skb,
+	.hash		   = raw_v6_hash,
+	.unhash		   = raw_v6_unhash,
+	.obj_size	   = sizeof(struct raw6_sock),
+#ifdef CONFIG_COMPAT
+	.compat_setsockopt = compat_rawv6_setsockopt,
+	.compat_getsockopt = compat_rawv6_getsockopt,
+#endif
 };
 
 #ifdef CONFIG_PROC_FS
@@ -1140,7 +1198,7 @@ static int raw6_seq_open(struct inode *inode, struct file *file)
 {
 	struct seq_file *seq;
 	int rc = -ENOMEM;
-	struct raw6_iter_state *s = kmalloc(sizeof(*s), GFP_KERNEL);
+	struct raw6_iter_state *s = kzalloc(sizeof(*s), GFP_KERNEL);
 	if (!s)
 		goto out;
 	rc = seq_open(file, &raw6_seq_ops);
@@ -1148,7 +1206,6 @@ static int raw6_seq_open(struct inode *inode, struct file *file)
 		goto out_kfree;
 	seq = file->private_data;
 	seq->private = s;
-	memset(s, 0, sizeof(*s));
 out:
 	return rc;
 out_kfree:
diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c
index 15e1456..b67a45f 100644
--- a/net/ipv6/reassembly.c
+++ b/net/ipv6/reassembly.c
@@ -203,7 +203,7 @@ static inline void frag_free_queue(struct frag_queue *fq, int *work)
 
 static inline struct frag_queue *frag_alloc_queue(void)
 {
-	struct frag_queue *fq = kmalloc(sizeof(struct frag_queue), GFP_ATOMIC);
+	struct frag_queue *fq = kzalloc(sizeof(struct frag_queue), GFP_ATOMIC);
 
 	if(!fq)
 		return NULL;
@@ -288,6 +288,7 @@ static void ip6_evictor(void)
 static void ip6_frag_expire(unsigned long data)
 {
 	struct frag_queue *fq = (struct frag_queue *) data;
+	struct net_device *dev;
 
 	spin_lock(&fq->lock);
 
@@ -299,22 +300,22 @@ static void ip6_frag_expire(unsigned long data)
 	IP6_INC_STATS_BH(IPSTATS_MIB_REASMTIMEOUT);
 	IP6_INC_STATS_BH(IPSTATS_MIB_REASMFAILS);
 
-	/* Send error only if the first segment arrived. */
-	if (fq->last_in&FIRST_IN && fq->fragments) {
-		struct net_device *dev = dev_get_by_index(fq->iif);
+	/* Don't send error if the first segment did not arrive. */
+	if (!(fq->last_in&FIRST_IN) || !fq->fragments)
+		goto out;
 
-		/*
-		   But use as source device on which LAST ARRIVED
-		   segment was received. And do not use fq->dev
-		   pointer directly, device might already disappeared.
-		 */
-		if (dev) {
-			fq->fragments->dev = dev;
-			icmpv6_send(fq->fragments, ICMPV6_TIME_EXCEED, ICMPV6_EXC_FRAGTIME, 0,
-				    dev);
-			dev_put(dev);
-		}
-	}
+	dev = dev_get_by_index(fq->iif);
+	if (!dev)
+		goto out;
+
+	/*
+	   But use as source device on which LAST ARRIVED
+	   segment was received. And do not use fq->dev
+	   pointer directly, device might already disappeared.
+	 */
+	fq->fragments->dev = dev;
+	icmpv6_send(fq->fragments, ICMPV6_TIME_EXCEED, ICMPV6_EXC_FRAGTIME, 0, dev);
+	dev_put(dev);
 out:
 	spin_unlock(&fq->lock);
 	fq_put(fq, NULL);
@@ -368,8 +369,6 @@ ip6_frag_create(unsigned int hash, u32 id, struct in6_addr *src, struct in6_addr
 	if ((fq = frag_alloc_queue()) == NULL)
 		goto oom;
 
-	memset(fq, 0, sizeof(struct frag_queue));
-
 	fq->id = id;
 	ipv6_addr_copy(&fq->saddr, src);
 	ipv6_addr_copy(&fq->daddr, dst);
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index e0d3ad0..7907874 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -72,6 +72,10 @@
 #define RT6_TRACE(x...) do { ; } while (0)
 #endif
 
+#define CLONE_OFFLINK_ROUTE 0
+
+#define RT6_SELECT_F_IFACE	0x1
+#define RT6_SELECT_F_REACHABLE	0x2
 
 static int ip6_rt_max_size = 4096;
 static int ip6_rt_gc_min_interval = HZ / 2;
@@ -94,6 +98,14 @@ static int		ip6_pkt_discard_out(struct sk_buff *skb);
 static void		ip6_link_failure(struct sk_buff *skb);
 static void		ip6_rt_update_pmtu(struct dst_entry *dst, u32 mtu);
 
+#ifdef CONFIG_IPV6_ROUTE_INFO
+static struct rt6_info *rt6_add_route_info(struct in6_addr *prefix, int prefixlen,
+					   struct in6_addr *gwaddr, int ifindex,
+					   unsigned pref);
+static struct rt6_info *rt6_get_route_info(struct in6_addr *prefix, int prefixlen,
+					   struct in6_addr *gwaddr, int ifindex);
+#endif
+
 static struct dst_ops ip6_dst_ops = {
 	.family			=	AF_INET6,
 	.protocol		=	__constant_htons(ETH_P_IPV6),
@@ -214,150 +226,211 @@ static __inline__ struct rt6_info *rt6_device_match(struct rt6_info *rt,
 	return rt;
 }
 
+#ifdef CONFIG_IPV6_ROUTER_PREF
+static void rt6_probe(struct rt6_info *rt)
+{
+	struct neighbour *neigh = rt ? rt->rt6i_nexthop : NULL;
+	/*
+	 * Okay, this does not seem to be appropriate
+	 * for now, however, we need to check if it
+	 * is really so; aka Router Reachability Probing.
+	 *
+	 * Router Reachability Probe MUST be rate-limited
+	 * to no more than one per minute.
+	 */
+	if (!neigh || (neigh->nud_state & NUD_VALID))
+		return;
+	read_lock_bh(&neigh->lock);
+	if (!(neigh->nud_state & NUD_VALID) &&
+	    time_after(jiffies, neigh->updated + rt->rt6i_idev->cnf.rtr_probe_interval)) {
+		struct in6_addr mcaddr;
+		struct in6_addr *target;
+
+		neigh->updated = jiffies;
+		read_unlock_bh(&neigh->lock);
+
+		target = (struct in6_addr *)&neigh->primary_key;
+		addrconf_addr_solict_mult(target, &mcaddr);
+		ndisc_send_ns(rt->rt6i_dev, NULL, target, &mcaddr, NULL);
+	} else
+		read_unlock_bh(&neigh->lock);
+}
+#else
+static inline void rt6_probe(struct rt6_info *rt)
+{
+	return;
+}
+#endif
+
 /*
- *	pointer to the last default router chosen. BH is disabled locally.
+ * Default Router Selection (RFC 2461 6.3.6)
  */
-static struct rt6_info *rt6_dflt_pointer;
-static DEFINE_SPINLOCK(rt6_dflt_lock);
+static int inline rt6_check_dev(struct rt6_info *rt, int oif)
+{
+	struct net_device *dev = rt->rt6i_dev;
+	if (!oif || dev->ifindex == oif)
+		return 2;
+	if ((dev->flags & IFF_LOOPBACK) &&
+	    rt->rt6i_idev && rt->rt6i_idev->dev->ifindex == oif)
+		return 1;
+	return 0;
+}
 
-void rt6_reset_dflt_pointer(struct rt6_info *rt)
+static int inline rt6_check_neigh(struct rt6_info *rt)
 {
-	spin_lock_bh(&rt6_dflt_lock);
-	if (rt == NULL || rt == rt6_dflt_pointer) {
-		RT6_TRACE("reset default router: %p->NULL\n", rt6_dflt_pointer);
-		rt6_dflt_pointer = NULL;
+	struct neighbour *neigh = rt->rt6i_nexthop;
+	int m = 0;
+	if (neigh) {
+		read_lock_bh(&neigh->lock);
+		if (neigh->nud_state & NUD_VALID)
+			m = 1;
+		read_unlock_bh(&neigh->lock);
 	}
-	spin_unlock_bh(&rt6_dflt_lock);
+	return m;
 }
 
-/* Default Router Selection (RFC 2461 6.3.6) */
-static struct rt6_info *rt6_best_dflt(struct rt6_info *rt, int oif)
+static int rt6_score_route(struct rt6_info *rt, int oif,
+			   int strict)
 {
-	struct rt6_info *match = NULL;
-	struct rt6_info *sprt;
-	int mpri = 0;
-
-	for (sprt = rt; sprt; sprt = sprt->u.next) {
-		struct neighbour *neigh;
-		int m = 0;
-
-		if (!oif ||
-		    (sprt->rt6i_dev &&
-		     sprt->rt6i_dev->ifindex == oif))
-			m += 8;
+	int m = rt6_check_dev(rt, oif);
+	if (!m && (strict & RT6_SELECT_F_IFACE))
+		return -1;
+#ifdef CONFIG_IPV6_ROUTER_PREF
+	m |= IPV6_DECODE_PREF(IPV6_EXTRACT_PREF(rt->rt6i_flags)) << 2;
+#endif
+	if (rt6_check_neigh(rt))
+		m |= 16;
+	else if (strict & RT6_SELECT_F_REACHABLE)
+		return -1;
+	return m;
+}
 
-		if (rt6_check_expired(sprt))
-			continue;
+static struct rt6_info *rt6_select(struct rt6_info **head, int oif,
+				   int strict)
+{
+	struct rt6_info *match = NULL, *last = NULL;
+	struct rt6_info *rt, *rt0 = *head;
+	u32 metric;
+	int mpri = -1;
 
-		if (sprt == rt6_dflt_pointer)
-			m += 4;
+	RT6_TRACE("%s(head=%p(*head=%p), oif=%d)\n",
+		  __FUNCTION__, head, head ? *head : NULL, oif);
 
-		if ((neigh = sprt->rt6i_nexthop) != NULL) {
-			read_lock_bh(&neigh->lock);
-			switch (neigh->nud_state) {
-			case NUD_REACHABLE:
-				m += 3;
-				break;
+	for (rt = rt0, metric = rt0->rt6i_metric;
+	     rt && rt->rt6i_metric == metric;
+	     rt = rt->u.next) {
+		int m;
 
-			case NUD_STALE:
-			case NUD_DELAY:
-			case NUD_PROBE:
-				m += 2;
-				break;
+		if (rt6_check_expired(rt))
+			continue;
 
-			case NUD_NOARP:
-			case NUD_PERMANENT:
-				m += 1;
-				break;
+		last = rt;
 
-			case NUD_INCOMPLETE:
-			default:
-				read_unlock_bh(&neigh->lock);
-				continue;
-			}
-			read_unlock_bh(&neigh->lock);
-		} else {
+		m = rt6_score_route(rt, oif, strict);
+		if (m < 0)
 			continue;
-		}
 
-		if (m > mpri || m >= 12) {
-			match = sprt;
+		if (m > mpri) {
+			rt6_probe(match);
+			match = rt;
 			mpri = m;
-			if (m >= 12) {
-				/* we choose the last default router if it
-				 * is in (probably) reachable state.
-				 * If route changed, we should do pmtu
-				 * discovery. --yoshfuji
-				 */
-				break;
-			}
+		} else {
+			rt6_probe(rt);
 		}
 	}
 
-	spin_lock(&rt6_dflt_lock);
-	if (!match) {
-		/*
-		 *	No default routers are known to be reachable.
-		 *	SHOULD round robin
-		 */
-		if (rt6_dflt_pointer) {
-			for (sprt = rt6_dflt_pointer->u.next;
-			     sprt; sprt = sprt->u.next) {
-				if (sprt->u.dst.obsolete <= 0 &&
-				    sprt->u.dst.error == 0 &&
-				    !rt6_check_expired(sprt)) {
-					match = sprt;
-					break;
-				}
-			}
-			for (sprt = rt;
-			     !match && sprt;
-			     sprt = sprt->u.next) {
-				if (sprt->u.dst.obsolete <= 0 &&
-				    sprt->u.dst.error == 0 &&
-				    !rt6_check_expired(sprt)) {
-					match = sprt;
-					break;
-				}
-				if (sprt == rt6_dflt_pointer)
-					break;
-			}
-		}
+	if (!match &&
+	    (strict & RT6_SELECT_F_REACHABLE) &&
+	    last && last != rt0) {
+		/* no entries matched; do round-robin */
+		*head = rt0->u.next;
+		rt0->u.next = last->u.next;
+		last->u.next = rt0;
 	}
 
-	if (match) {
-		if (rt6_dflt_pointer != match)
-			RT6_TRACE("changed default router: %p->%p\n",
-				  rt6_dflt_pointer, match);
-		rt6_dflt_pointer = match;
+	RT6_TRACE("%s() => %p, score=%d\n",
+		  __FUNCTION__, match, mpri);
+
+	return (match ? match : &ip6_null_entry);
+}
+
+#ifdef CONFIG_IPV6_ROUTE_INFO
+int rt6_route_rcv(struct net_device *dev, u8 *opt, int len,
+		  struct in6_addr *gwaddr)
+{
+	struct route_info *rinfo = (struct route_info *) opt;
+	struct in6_addr prefix_buf, *prefix;
+	unsigned int pref;
+	u32 lifetime;
+	struct rt6_info *rt;
+
+	if (len < sizeof(struct route_info)) {
+		return -EINVAL;
 	}
-	spin_unlock(&rt6_dflt_lock);
 
-	if (!match) {
-		/*
-		 * Last Resort: if no default routers found, 
-		 * use addrconf default route.
-		 * We don't record this route.
-		 */
-		for (sprt = ip6_routing_table.leaf;
-		     sprt; sprt = sprt->u.next) {
-			if (!rt6_check_expired(sprt) &&
-			    (sprt->rt6i_flags & RTF_DEFAULT) &&
-			    (!oif ||
-			     (sprt->rt6i_dev &&
-			      sprt->rt6i_dev->ifindex == oif))) {
-				match = sprt;
-				break;
-			}
+	/* Sanity check for prefix_len and length */
+	if (rinfo->length > 3) {
+		return -EINVAL;
+	} else if (rinfo->prefix_len > 128) {
+		return -EINVAL;
+	} else if (rinfo->prefix_len > 64) {
+		if (rinfo->length < 2) {
+			return -EINVAL;
 		}
-		if (!match) {
-			/* no default route.  give up. */
-			match = &ip6_null_entry;
+	} else if (rinfo->prefix_len > 0) {
+		if (rinfo->length < 1) {
+			return -EINVAL;
 		}
 	}
 
-	return match;
+	pref = rinfo->route_pref;
+	if (pref == ICMPV6_ROUTER_PREF_INVALID)
+		pref = ICMPV6_ROUTER_PREF_MEDIUM;
+
+	lifetime = htonl(rinfo->lifetime);
+	if (lifetime == 0xffffffff) {
+		/* infinity */
+	} else if (lifetime > 0x7fffffff/HZ) {
+		/* Avoid arithmetic overflow */
+		lifetime = 0x7fffffff/HZ - 1;
+	}
+
+	if (rinfo->length == 3)
+		prefix = (struct in6_addr *)rinfo->prefix;
+	else {
+		/* this function is safe */
+		ipv6_addr_prefix(&prefix_buf,
+				 (struct in6_addr *)rinfo->prefix,
+				 rinfo->prefix_len);
+		prefix = &prefix_buf;
+	}
+
+	rt = rt6_get_route_info(prefix, rinfo->prefix_len, gwaddr, dev->ifindex);
+
+	if (rt && !lifetime) {
+		ip6_del_rt(rt, NULL, NULL, NULL);
+		rt = NULL;
+	}
+
+	if (!rt && lifetime)
+		rt = rt6_add_route_info(prefix, rinfo->prefix_len, gwaddr, dev->ifindex,
+					pref);
+	else if (rt)
+		rt->rt6i_flags = RTF_ROUTEINFO |
+				 (rt->rt6i_flags & ~RTF_PREF_MASK) | RTF_PREF(pref);
+
+	if (rt) {
+		if (lifetime == 0xffffffff) {
+			rt->rt6i_flags &= ~RTF_EXPIRES;
+		} else {
+			rt->rt6i_expires = jiffies + HZ * lifetime;
+			rt->rt6i_flags |= RTF_EXPIRES;
+		}
+		dst_release(&rt->u.dst);
+	}
+	return 0;
 }
+#endif
 
 struct rt6_info *rt6_lookup(struct in6_addr *daddr, struct in6_addr *saddr,
 			    int oif, int strict)
@@ -397,14 +470,9 @@ int ip6_ins_rt(struct rt6_info *rt, struct nlmsghdr *nlh,
 	return err;
 }
 
-/* No rt6_lock! If COW failed, the function returns dead route entry
-   with dst->error set to errno value.
- */
-
-static struct rt6_info *rt6_cow(struct rt6_info *ort, struct in6_addr *daddr,
-				struct in6_addr *saddr, struct netlink_skb_parms *req)
+static struct rt6_info *rt6_alloc_cow(struct rt6_info *ort, struct in6_addr *daddr,
+				      struct in6_addr *saddr)
 {
-	int err;
 	struct rt6_info *rt;
 
 	/*
@@ -435,25 +503,30 @@ static struct rt6_info *rt6_cow(struct rt6_info *ort, struct in6_addr *daddr,
 
 		rt->rt6i_nexthop = ndisc_get_neigh(rt->rt6i_dev, &rt->rt6i_gateway);
 
-		dst_hold(&rt->u.dst);
-
-		err = ip6_ins_rt(rt, NULL, NULL, req);
-		if (err == 0)
-			return rt;
+	}
 
-		rt->u.dst.error = err;
+	return rt;
+}
 
-		return rt;
+static struct rt6_info *rt6_alloc_clone(struct rt6_info *ort, struct in6_addr *daddr)
+{
+	struct rt6_info *rt = ip6_rt_copy(ort);
+	if (rt) {
+		ipv6_addr_copy(&rt->rt6i_dst.addr, daddr);
+		rt->rt6i_dst.plen = 128;
+		rt->rt6i_flags |= RTF_CACHE;
+		if (rt->rt6i_flags & RTF_REJECT)
+			rt->u.dst.error = ort->u.dst.error;
+		rt->u.dst.flags |= DST_HOST;
+		rt->rt6i_nexthop = neigh_clone(ort->rt6i_nexthop);
 	}
-	dst_hold(&ip6_null_entry.u.dst);
-	return &ip6_null_entry;
+	return rt;
 }
 
 #define BACKTRACK() \
-if (rt == &ip6_null_entry && strict) { \
+if (rt == &ip6_null_entry) { \
        while ((fn = fn->parent) != NULL) { \
 		if (fn->fn_flags & RTN_ROOT) { \
-			dst_hold(&rt->u.dst); \
 			goto out; \
 		} \
 		if (fn->fn_flags & RTN_RTINFO) \
@@ -465,115 +538,138 @@ if (rt == &ip6_null_entry && strict) { \
 void ip6_route_input(struct sk_buff *skb)
 {
 	struct fib6_node *fn;
-	struct rt6_info *rt;
+	struct rt6_info *rt, *nrt;
 	int strict;
 	int attempts = 3;
+	int err;
+	int reachable = RT6_SELECT_F_REACHABLE;
 
-	strict = ipv6_addr_type(&skb->nh.ipv6h->daddr) & (IPV6_ADDR_MULTICAST|IPV6_ADDR_LINKLOCAL);
+	strict = ipv6_addr_type(&skb->nh.ipv6h->daddr) & (IPV6_ADDR_MULTICAST|IPV6_ADDR_LINKLOCAL) ? RT6_SELECT_F_IFACE : 0;
 
 relookup:
 	read_lock_bh(&rt6_lock);
 
+restart_2:
 	fn = fib6_lookup(&ip6_routing_table, &skb->nh.ipv6h->daddr,
 			 &skb->nh.ipv6h->saddr);
 
 restart:
-	rt = fn->leaf;
-
-	if ((rt->rt6i_flags & RTF_CACHE)) {
-		rt = rt6_device_match(rt, skb->dev->ifindex, strict);
-		BACKTRACK();
-		dst_hold(&rt->u.dst);
-		goto out;
-	}
-
-	rt = rt6_device_match(rt, skb->dev->ifindex, strict);
+	rt = rt6_select(&fn->leaf, skb->dev->ifindex, strict | reachable);
 	BACKTRACK();
+	if (rt == &ip6_null_entry ||
+	    rt->rt6i_flags & RTF_CACHE)
+		goto out;
 
-	if (!rt->rt6i_nexthop && !(rt->rt6i_flags & RTF_NONEXTHOP)) {
-		struct rt6_info *nrt;
-		dst_hold(&rt->u.dst);
-		read_unlock_bh(&rt6_lock);
+	dst_hold(&rt->u.dst);
+	read_unlock_bh(&rt6_lock);
 
-		nrt = rt6_cow(rt, &skb->nh.ipv6h->daddr,
-			      &skb->nh.ipv6h->saddr,
-			      &NETLINK_CB(skb));
+	if (!rt->rt6i_nexthop && !(rt->rt6i_flags & RTF_NONEXTHOP))
+		nrt = rt6_alloc_cow(rt, &skb->nh.ipv6h->daddr, &skb->nh.ipv6h->saddr);
+	else {
+#if CLONE_OFFLINK_ROUTE
+		nrt = rt6_alloc_clone(rt, &skb->nh.ipv6h->daddr);
+#else
+		goto out2;
+#endif
+	}
 
-		dst_release(&rt->u.dst);
-		rt = nrt;
+	dst_release(&rt->u.dst);
+	rt = nrt ? : &ip6_null_entry;
 
-		if (rt->u.dst.error != -EEXIST || --attempts <= 0)
+	dst_hold(&rt->u.dst);
+	if (nrt) {
+		err = ip6_ins_rt(nrt, NULL, NULL, &NETLINK_CB(skb));
+		if (!err)
 			goto out2;
-
-		/* Race condition! In the gap, when rt6_lock was
-		   released someone could insert this route.  Relookup.
-		*/
-		dst_release(&rt->u.dst);
-		goto relookup;
 	}
-	dst_hold(&rt->u.dst);
+
+	if (--attempts <= 0)
+		goto out2;
+
+	/*
+	 * Race condition! In the gap, when rt6_lock was
+	 * released someone could insert this route.  Relookup.
+	 */
+	dst_release(&rt->u.dst);
+	goto relookup;
 
 out:
+	if (reachable) {
+		reachable = 0;
+		goto restart_2;
+	}
+	dst_hold(&rt->u.dst);
 	read_unlock_bh(&rt6_lock);
 out2:
 	rt->u.dst.lastuse = jiffies;
 	rt->u.dst.__use++;
 	skb->dst = (struct dst_entry *) rt;
+	return;
 }
 
 struct dst_entry * ip6_route_output(struct sock *sk, struct flowi *fl)
 {
 	struct fib6_node *fn;
-	struct rt6_info *rt;
+	struct rt6_info *rt, *nrt;
 	int strict;
 	int attempts = 3;
+	int err;
+	int reachable = RT6_SELECT_F_REACHABLE;
 
-	strict = ipv6_addr_type(&fl->fl6_dst) & (IPV6_ADDR_MULTICAST|IPV6_ADDR_LINKLOCAL);
+	strict = ipv6_addr_type(&fl->fl6_dst) & (IPV6_ADDR_MULTICAST|IPV6_ADDR_LINKLOCAL) ? RT6_SELECT_F_IFACE : 0;
 
 relookup:
 	read_lock_bh(&rt6_lock);
 
+restart_2:
 	fn = fib6_lookup(&ip6_routing_table, &fl->fl6_dst, &fl->fl6_src);
 
 restart:
-	rt = fn->leaf;
-
-	if ((rt->rt6i_flags & RTF_CACHE)) {
-		rt = rt6_device_match(rt, fl->oif, strict);
-		BACKTRACK();
-		dst_hold(&rt->u.dst);
+	rt = rt6_select(&fn->leaf, fl->oif, strict | reachable);
+	BACKTRACK();
+	if (rt == &ip6_null_entry ||
+	    rt->rt6i_flags & RTF_CACHE)
 		goto out;
-	}
-	if (rt->rt6i_flags & RTF_DEFAULT) {
-		if (rt->rt6i_metric >= IP6_RT_PRIO_ADDRCONF)
-			rt = rt6_best_dflt(rt, fl->oif);
-	} else {
-		rt = rt6_device_match(rt, fl->oif, strict);
-		BACKTRACK();
-	}
 
-	if (!rt->rt6i_nexthop && !(rt->rt6i_flags & RTF_NONEXTHOP)) {
-		struct rt6_info *nrt;
-		dst_hold(&rt->u.dst);
-		read_unlock_bh(&rt6_lock);
+	dst_hold(&rt->u.dst);
+	read_unlock_bh(&rt6_lock);
 
-		nrt = rt6_cow(rt, &fl->fl6_dst, &fl->fl6_src, NULL);
+	if (!rt->rt6i_nexthop && !(rt->rt6i_flags & RTF_NONEXTHOP))
+		nrt = rt6_alloc_cow(rt, &fl->fl6_dst, &fl->fl6_src);
+	else {
+#if CLONE_OFFLINK_ROUTE
+		nrt = rt6_alloc_clone(rt, &fl->fl6_dst);
+#else
+		goto out2;
+#endif
+	}
 
-		dst_release(&rt->u.dst);
-		rt = nrt;
+	dst_release(&rt->u.dst);
+	rt = nrt ? : &ip6_null_entry;
 
-		if (rt->u.dst.error != -EEXIST || --attempts <= 0)
+	dst_hold(&rt->u.dst);
+	if (nrt) {
+		err = ip6_ins_rt(nrt, NULL, NULL, NULL);
+		if (!err)
 			goto out2;
-
-		/* Race condition! In the gap, when rt6_lock was
-		   released someone could insert this route.  Relookup.
-		*/
-		dst_release(&rt->u.dst);
-		goto relookup;
 	}
-	dst_hold(&rt->u.dst);
+
+	if (--attempts <= 0)
+		goto out2;
+
+	/*
+	 * Race condition! In the gap, when rt6_lock was
+	 * released someone could insert this route.  Relookup.
+	 */
+	dst_release(&rt->u.dst);
+	goto relookup;
 
 out:
+	if (reachable) {
+		reachable = 0;
+		goto restart_2;
+	}
+	dst_hold(&rt->u.dst);
 	read_unlock_bh(&rt6_lock);
 out2:
 	rt->u.dst.lastuse = jiffies;
@@ -999,8 +1095,6 @@ int ip6_del_rt(struct rt6_info *rt, struct nlmsghdr *nlh, void *_rtattr, struct
 
 	write_lock_bh(&rt6_lock);
 
-	rt6_reset_dflt_pointer(NULL);
-
 	err = fib6_del(rt, nlh, _rtattr, req);
 	dst_release(&rt->u.dst);
 
@@ -1050,59 +1144,63 @@ static int ip6_route_del(struct in6_rtmsg *rtmsg, struct nlmsghdr *nlh, void *_r
 void rt6_redirect(struct in6_addr *dest, struct in6_addr *saddr,
 		  struct neighbour *neigh, u8 *lladdr, int on_link)
 {
-	struct rt6_info *rt, *nrt;
-
-	/* Locate old route to this destination. */
-	rt = rt6_lookup(dest, NULL, neigh->dev->ifindex, 1);
-
-	if (rt == NULL)
-		return;
-
-	if (neigh->dev != rt->rt6i_dev)
-		goto out;
+	struct rt6_info *rt, *nrt = NULL;
+	int strict;
+	struct fib6_node *fn;
 
 	/*
-	 * Current route is on-link; redirect is always invalid.
-	 * 
-	 * Seems, previous statement is not true. It could
-	 * be node, which looks for us as on-link (f.e. proxy ndisc)
-	 * But then router serving it might decide, that we should
-	 * know truth 8)8) --ANK (980726).
+	 * Get the "current" route for this destination and
+	 * check if the redirect has come from approriate router.
+	 *
+	 * RFC 2461 specifies that redirects should only be
+	 * accepted if they come from the nexthop to the target.
+	 * Due to the way the routes are chosen, this notion
+	 * is a bit fuzzy and one might need to check all possible
+	 * routes.
 	 */
-	if (!(rt->rt6i_flags&RTF_GATEWAY))
-		goto out;
+	strict = ipv6_addr_type(dest) & (IPV6_ADDR_MULTICAST | IPV6_ADDR_LINKLOCAL);
 
-	/*
-	 *	RFC 2461 specifies that redirects should only be
-	 *	accepted if they come from the nexthop to the target.
-	 *	Due to the way default routers are chosen, this notion
-	 *	is a bit fuzzy and one might need to check all default
-	 *	routers.
-	 */
-	if (!ipv6_addr_equal(saddr, &rt->rt6i_gateway)) {
-		if (rt->rt6i_flags & RTF_DEFAULT) {
-			struct rt6_info *rt1;
-
-			read_lock(&rt6_lock);
-			for (rt1 = ip6_routing_table.leaf; rt1; rt1 = rt1->u.next) {
-				if (ipv6_addr_equal(saddr, &rt1->rt6i_gateway)) {
-					dst_hold(&rt1->u.dst);
-					dst_release(&rt->u.dst);
-					read_unlock(&rt6_lock);
-					rt = rt1;
-					goto source_ok;
-				}
-			}
-			read_unlock(&rt6_lock);
+	read_lock_bh(&rt6_lock);
+	fn = fib6_lookup(&ip6_routing_table, dest, NULL);
+restart:
+	for (rt = fn->leaf; rt; rt = rt->u.next) {
+		/*
+		 * Current route is on-link; redirect is always invalid.
+		 *
+		 * Seems, previous statement is not true. It could
+		 * be node, which looks for us as on-link (f.e. proxy ndisc)
+		 * But then router serving it might decide, that we should
+		 * know truth 8)8) --ANK (980726).
+		 */
+		if (rt6_check_expired(rt))
+			continue;
+		if (!(rt->rt6i_flags & RTF_GATEWAY))
+			continue;
+		if (neigh->dev != rt->rt6i_dev)
+			continue;
+		if (!ipv6_addr_equal(saddr, &rt->rt6i_gateway))
+			continue;
+		break;
+	}
+	if (rt)
+		dst_hold(&rt->u.dst);
+	else if (strict) {
+		while ((fn = fn->parent) != NULL) {
+			if (fn->fn_flags & RTN_ROOT)
+				break;
+			if (fn->fn_flags & RTN_RTINFO)
+				goto restart;
 		}
+	}
+	read_unlock_bh(&rt6_lock);
+
+	if (!rt) {
 		if (net_ratelimit())
 			printk(KERN_DEBUG "rt6_redirect: source isn't a valid nexthop "
 			       "for redirect target\n");
-		goto out;
+		return;
 	}
 
-source_ok:
-
 	/*
 	 *	We have finally decided to accept it.
 	 */
@@ -1210,38 +1308,27 @@ void rt6_pmtu_discovery(struct in6_addr *daddr, struct in6_addr *saddr,
 	   1. It is connected route. Action: COW
 	   2. It is gatewayed route or NONEXTHOP route. Action: clone it.
 	 */
-	if (!rt->rt6i_nexthop && !(rt->rt6i_flags & RTF_NONEXTHOP)) {
-		nrt = rt6_cow(rt, daddr, saddr, NULL);
-		if (!nrt->u.dst.error) {
-			nrt->u.dst.metrics[RTAX_MTU-1] = pmtu;
-			if (allfrag)
-				nrt->u.dst.metrics[RTAX_FEATURES-1] |= RTAX_FEATURE_ALLFRAG;
-			/* According to RFC 1981, detecting PMTU increase shouldn't be
-			   happened within 5 mins, the recommended timer is 10 mins.
-			   Here this route expiration time is set to ip6_rt_mtu_expires
-			   which is 10 mins. After 10 mins the decreased pmtu is expired
-			   and detecting PMTU increase will be automatically happened.
-			 */
-			dst_set_expires(&nrt->u.dst, ip6_rt_mtu_expires);
-			nrt->rt6i_flags |= RTF_DYNAMIC|RTF_EXPIRES;
-		}
-		dst_release(&nrt->u.dst);
-	} else {
-		nrt = ip6_rt_copy(rt);
-		if (nrt == NULL)
-			goto out;
-		ipv6_addr_copy(&nrt->rt6i_dst.addr, daddr);
-		nrt->rt6i_dst.plen = 128;
-		nrt->u.dst.flags |= DST_HOST;
-		nrt->rt6i_nexthop = neigh_clone(rt->rt6i_nexthop);
-		dst_set_expires(&nrt->u.dst, ip6_rt_mtu_expires);
-		nrt->rt6i_flags |= RTF_DYNAMIC|RTF_CACHE|RTF_EXPIRES;
+	if (!rt->rt6i_nexthop && !(rt->rt6i_flags & RTF_NONEXTHOP))
+		nrt = rt6_alloc_cow(rt, daddr, saddr);
+	else
+		nrt = rt6_alloc_clone(rt, daddr);
+
+	if (nrt) {
 		nrt->u.dst.metrics[RTAX_MTU-1] = pmtu;
 		if (allfrag)
 			nrt->u.dst.metrics[RTAX_FEATURES-1] |= RTAX_FEATURE_ALLFRAG;
+
+		/* According to RFC 1981, detecting PMTU increase shouldn't be
+		 * happened within 5 mins, the recommended timer is 10 mins.
+		 * Here this route expiration time is set to ip6_rt_mtu_expires
+		 * which is 10 mins. After 10 mins the decreased pmtu is expired
+		 * and detecting PMTU increase will be automatically happened.
+		 */
+		dst_set_expires(&nrt->u.dst, ip6_rt_mtu_expires);
+		nrt->rt6i_flags |= RTF_DYNAMIC|RTF_EXPIRES;
+
 		ip6_ins_rt(nrt, NULL, NULL, NULL);
 	}
-
 out:
 	dst_release(&rt->u.dst);
 }
@@ -1280,6 +1367,57 @@ static struct rt6_info * ip6_rt_copy(struct rt6_info *ort)
 	return rt;
 }
 
+#ifdef CONFIG_IPV6_ROUTE_INFO
+static struct rt6_info *rt6_get_route_info(struct in6_addr *prefix, int prefixlen,
+					   struct in6_addr *gwaddr, int ifindex)
+{
+	struct fib6_node *fn;
+	struct rt6_info *rt = NULL;
+
+	write_lock_bh(&rt6_lock);
+	fn = fib6_locate(&ip6_routing_table, prefix ,prefixlen, NULL, 0);
+	if (!fn)
+		goto out;
+
+	for (rt = fn->leaf; rt; rt = rt->u.next) {
+		if (rt->rt6i_dev->ifindex != ifindex)
+			continue;
+		if ((rt->rt6i_flags & (RTF_ROUTEINFO|RTF_GATEWAY)) != (RTF_ROUTEINFO|RTF_GATEWAY))
+			continue;
+		if (!ipv6_addr_equal(&rt->rt6i_gateway, gwaddr))
+			continue;
+		dst_hold(&rt->u.dst);
+		break;
+	}
+out:
+	write_unlock_bh(&rt6_lock);
+	return rt;
+}
+
+static struct rt6_info *rt6_add_route_info(struct in6_addr *prefix, int prefixlen,
+					   struct in6_addr *gwaddr, int ifindex,
+					   unsigned pref)
+{
+	struct in6_rtmsg rtmsg;
+
+	memset(&rtmsg, 0, sizeof(rtmsg));
+	rtmsg.rtmsg_type = RTMSG_NEWROUTE;
+	ipv6_addr_copy(&rtmsg.rtmsg_dst, prefix);
+	rtmsg.rtmsg_dst_len = prefixlen;
+	ipv6_addr_copy(&rtmsg.rtmsg_gateway, gwaddr);
+	rtmsg.rtmsg_metric = 1024;
+	rtmsg.rtmsg_flags = RTF_GATEWAY | RTF_ADDRCONF | RTF_ROUTEINFO | RTF_UP | RTF_PREF(pref);
+	/* We should treat it as a default route if prefix length is 0. */
+	if (!prefixlen)
+		rtmsg.rtmsg_flags |= RTF_DEFAULT;
+	rtmsg.rtmsg_ifindex = ifindex;
+
+	ip6_route_add(&rtmsg, NULL, NULL, NULL);
+
+	return rt6_get_route_info(prefix, prefixlen, gwaddr, ifindex);
+}
+#endif
+
 struct rt6_info *rt6_get_dflt_router(struct in6_addr *addr, struct net_device *dev)
 {	
 	struct rt6_info *rt;
@@ -1290,6 +1428,7 @@ struct rt6_info *rt6_get_dflt_router(struct in6_addr *addr, struct net_device *d
 	write_lock_bh(&rt6_lock);
 	for (rt = fn->leaf; rt; rt=rt->u.next) {
 		if (dev == rt->rt6i_dev &&
+		    ((rt->rt6i_flags & (RTF_ADDRCONF | RTF_DEFAULT)) == (RTF_ADDRCONF | RTF_DEFAULT)) &&
 		    ipv6_addr_equal(&rt->rt6i_gateway, addr))
 			break;
 	}
@@ -1300,7 +1439,8 @@ struct rt6_info *rt6_get_dflt_router(struct in6_addr *addr, struct net_device *d
 }
 
 struct rt6_info *rt6_add_dflt_router(struct in6_addr *gwaddr,
-				     struct net_device *dev)
+				     struct net_device *dev,
+				     unsigned int pref)
 {
 	struct in6_rtmsg rtmsg;
 
@@ -1308,7 +1448,8 @@ struct rt6_info *rt6_add_dflt_router(struct in6_addr *gwaddr,
 	rtmsg.rtmsg_type = RTMSG_NEWROUTE;
 	ipv6_addr_copy(&rtmsg.rtmsg_gateway, gwaddr);
 	rtmsg.rtmsg_metric = 1024;
-	rtmsg.rtmsg_flags = RTF_GATEWAY | RTF_ADDRCONF | RTF_DEFAULT | RTF_UP | RTF_EXPIRES;
+	rtmsg.rtmsg_flags = RTF_GATEWAY | RTF_ADDRCONF | RTF_DEFAULT | RTF_UP | RTF_EXPIRES |
+			    RTF_PREF(pref);
 
 	rtmsg.rtmsg_ifindex = dev->ifindex;
 
@@ -1326,8 +1467,6 @@ restart:
 		if (rt->rt6i_flags & (RTF_DEFAULT | RTF_ADDRCONF)) {
 			dst_hold(&rt->u.dst);
 
-			rt6_reset_dflt_pointer(NULL);
-
 			read_unlock_bh(&rt6_lock);
 
 			ip6_del_rt(rt, NULL, NULL, NULL);
@@ -1738,11 +1877,10 @@ int inet6_dump_fib(struct sk_buff *skb, struct netlink_callback *cb)
 		/*
 		 * 2. allocate and initialize walker.
 		 */
-		w = kmalloc(sizeof(*w), GFP_ATOMIC);
+		w = kzalloc(sizeof(*w), GFP_ATOMIC);
 		if (w == NULL)
 			return -ENOMEM;
 		RT6_TRACE("dump<%p", w);
-		memset(w, 0, sizeof(*w));
 		w->root = &ip6_routing_table;
 		w->func = fib6_dump_node;
 		w->args = &arg;
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index ca9cf685..301eee7 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -987,6 +987,7 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
 		inet_csk(newsk)->icsk_ext_hdr_len = (newnp->opt->opt_nflen +
 						     newnp->opt->opt_flen);
 
+	tcp_mtup_init(newsk);
 	tcp_sync_mss(newsk, dst_mtu(dst));
 	newtp->advmss = dst_metric(dst, RTAX_ADVMSS);
 	tcp_initialize_rcv_mss(newsk);
@@ -1297,18 +1298,21 @@ static int tcp_v6_remember_stamp(struct sock *sk)
 }
 
 static struct inet_connection_sock_af_ops ipv6_specific = {
-	.queue_xmit	=	inet6_csk_xmit,
-	.send_check	=	tcp_v6_send_check,
-	.rebuild_header	=	inet6_sk_rebuild_header,
-	.conn_request	=	tcp_v6_conn_request,
-	.syn_recv_sock	=	tcp_v6_syn_recv_sock,
-	.remember_stamp	=	tcp_v6_remember_stamp,
-	.net_header_len	=	sizeof(struct ipv6hdr),
-
-	.setsockopt	=	ipv6_setsockopt,
-	.getsockopt	=	ipv6_getsockopt,
-	.addr2sockaddr	=	inet6_csk_addr2sockaddr,
-	.sockaddr_len	=	sizeof(struct sockaddr_in6)
+	.queue_xmit	   = inet6_csk_xmit,
+	.send_check	   = tcp_v6_send_check,
+	.rebuild_header	   = inet6_sk_rebuild_header,
+	.conn_request	   = tcp_v6_conn_request,
+	.syn_recv_sock	   = tcp_v6_syn_recv_sock,
+	.remember_stamp	   = tcp_v6_remember_stamp,
+	.net_header_len	   = sizeof(struct ipv6hdr),
+	.setsockopt	   = ipv6_setsockopt,
+	.getsockopt	   = ipv6_getsockopt,
+	.addr2sockaddr	   = inet6_csk_addr2sockaddr,
+	.sockaddr_len	   = sizeof(struct sockaddr_in6),
+#ifdef CONFIG_COMPAT
+	.compat_setsockopt = compat_ipv6_setsockopt,
+	.compat_getsockopt = compat_ipv6_getsockopt,
+#endif
 };
 
 /*
@@ -1316,22 +1320,23 @@ static struct inet_connection_sock_af_ops ipv6_specific = {
  */
 
 static struct inet_connection_sock_af_ops ipv6_mapped = {
-	.queue_xmit	=	ip_queue_xmit,
-	.send_check	=	tcp_v4_send_check,
-	.rebuild_header	=	inet_sk_rebuild_header,
-	.conn_request	=	tcp_v6_conn_request,
-	.syn_recv_sock	=	tcp_v6_syn_recv_sock,
-	.remember_stamp	=	tcp_v4_remember_stamp,
-	.net_header_len	=	sizeof(struct iphdr),
-
-	.setsockopt	=	ipv6_setsockopt,
-	.getsockopt	=	ipv6_getsockopt,
-	.addr2sockaddr	=	inet6_csk_addr2sockaddr,
-	.sockaddr_len	=	sizeof(struct sockaddr_in6)
+	.queue_xmit	   = ip_queue_xmit,
+	.send_check	   = tcp_v4_send_check,
+	.rebuild_header	   = inet_sk_rebuild_header,
+	.conn_request	   = tcp_v6_conn_request,
+	.syn_recv_sock	   = tcp_v6_syn_recv_sock,
+	.remember_stamp	   = tcp_v4_remember_stamp,
+	.net_header_len	   = sizeof(struct iphdr),
+	.setsockopt	   = ipv6_setsockopt,
+	.getsockopt	   = ipv6_getsockopt,
+	.addr2sockaddr	   = inet6_csk_addr2sockaddr,
+	.sockaddr_len	   = sizeof(struct sockaddr_in6),
+#ifdef CONFIG_COMPAT
+	.compat_setsockopt = compat_ipv6_setsockopt,
+	.compat_getsockopt = compat_ipv6_getsockopt,
+#endif
 };
 
-
-
 /* NOTE: A lot of things set to zero explicitly by call to
  *       sk_alloc() so need not be done here.
  */
@@ -1583,6 +1588,10 @@ struct proto tcpv6_prot = {
 	.obj_size		= sizeof(struct tcp6_sock),
 	.twsk_prot		= &tcp6_timewait_sock_ops,
 	.rsk_prot		= &tcp6_request_sock_ops,
+#ifdef CONFIG_COMPAT
+	.compat_setsockopt	= compat_tcp_setsockopt,
+	.compat_getsockopt	= compat_tcp_getsockopt,
+#endif
 };
 
 static struct inet6_protocol tcpv6_protocol = {
@@ -1604,21 +1613,12 @@ static struct inet_protosw tcpv6_protosw = {
 
 void __init tcpv6_init(void)
 {
-	int err;
-
 	/* register inet6 protocol */
 	if (inet6_add_protocol(&tcpv6_protocol, IPPROTO_TCP) < 0)
 		printk(KERN_ERR "tcpv6_init: Could not register protocol\n");
 	inet6_register_protosw(&tcpv6_protosw);
 
-	err = sock_create_kern(PF_INET6, SOCK_RAW, IPPROTO_TCP, &tcp6_socket);
-	if (err < 0)
+	if (inet_csk_ctl_sock_create(&tcp6_socket, PF_INET6, SOCK_RAW,
+				     IPPROTO_TCP) < 0)
 		panic("Failed to create the TCPv6 control socket.\n");
-	tcp6_socket->sk->sk_allocation = GFP_ATOMIC;
-
-	/* Unhash it so that IP input processing does not even
-	 * see it, we do not wish this socket to see incoming
-	 * packets.
-	 */
-	tcp6_socket->sk->sk_prot->unhash(tcp6_socket->sk);
 }
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index c476488..8d3432a 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -880,16 +880,13 @@ static int udpv6_destroy_sock(struct sock *sk)
 /*
  *	Socket option code for UDP
  */
-static int udpv6_setsockopt(struct sock *sk, int level, int optname, 
+static int do_udpv6_setsockopt(struct sock *sk, int level, int optname,
 			  char __user *optval, int optlen)
 {
 	struct udp_sock *up = udp_sk(sk);
 	int val;
 	int err = 0;
 
-	if (level != SOL_UDP)
-		return ipv6_setsockopt(sk, level, optname, optval, optlen);
-
 	if(optlen<sizeof(int))
 		return -EINVAL;
 
@@ -927,15 +924,31 @@ static int udpv6_setsockopt(struct sock *sk, int level, int optname,
 	return err;
 }
 
-static int udpv6_getsockopt(struct sock *sk, int level, int optname, 
+static int udpv6_setsockopt(struct sock *sk, int level, int optname,
+			  char __user *optval, int optlen)
+{
+	if (level != SOL_UDP)
+		return ipv6_setsockopt(sk, level, optname, optval, optlen);
+	return do_udpv6_setsockopt(sk, level, optname, optval, optlen);
+}
+
+#ifdef CONFIG_COMPAT
+static int compat_udpv6_setsockopt(struct sock *sk, int level, int optname,
+				   char __user *optval, int optlen)
+{
+	if (level != SOL_UDP)
+		return compat_ipv6_setsockopt(sk, level, optname,
+					      optval, optlen);
+	return do_udpv6_setsockopt(sk, level, optname, optval, optlen);
+}
+#endif
+
+static int do_udpv6_getsockopt(struct sock *sk, int level, int optname,
 			  char __user *optval, int __user *optlen)
 {
 	struct udp_sock *up = udp_sk(sk);
 	int val, len;
 
-	if (level != SOL_UDP)
-		return ipv6_getsockopt(sk, level, optname, optval, optlen);
-
 	if(get_user(len,optlen))
 		return -EFAULT;
 
@@ -964,6 +977,25 @@ static int udpv6_getsockopt(struct sock *sk, int level, int optname,
   	return 0;
 }
 
+static int udpv6_getsockopt(struct sock *sk, int level, int optname,
+			  char __user *optval, int __user *optlen)
+{
+	if (level != SOL_UDP)
+		return ipv6_getsockopt(sk, level, optname, optval, optlen);
+	return do_udpv6_getsockopt(sk, level, optname, optval, optlen);
+}
+
+#ifdef CONFIG_COMPAT
+static int compat_udpv6_getsockopt(struct sock *sk, int level, int optname,
+				   char __user *optval, int __user *optlen)
+{
+	if (level != SOL_UDP)
+		return compat_ipv6_getsockopt(sk, level, optname,
+					      optval, optlen);
+	return do_udpv6_getsockopt(sk, level, optname, optval, optlen);
+}
+#endif
+
 static struct inet6_protocol udpv6_protocol = {
 	.handler	=	udpv6_rcv,
 	.err_handler	=	udpv6_err,
@@ -1037,22 +1069,26 @@ void udp6_proc_exit(void) {
 /* ------------------------------------------------------------------------ */
 
 struct proto udpv6_prot = {
-	.name =		"UDPv6",
-	.owner =	THIS_MODULE,
-	.close =	udpv6_close,
-	.connect =	ip6_datagram_connect,
-	.disconnect =	udp_disconnect,
-	.ioctl =	udp_ioctl,
-	.destroy =	udpv6_destroy_sock,
-	.setsockopt =	udpv6_setsockopt,
-	.getsockopt =	udpv6_getsockopt,
-	.sendmsg =	udpv6_sendmsg,
-	.recvmsg =	udpv6_recvmsg,
-	.backlog_rcv =	udpv6_queue_rcv_skb,
-	.hash =		udp_v6_hash,
-	.unhash =	udp_v6_unhash,
-	.get_port =	udp_v6_get_port,
-	.obj_size =	sizeof(struct udp6_sock),
+	.name		   = "UDPv6",
+	.owner		   = THIS_MODULE,
+	.close		   = udpv6_close,
+	.connect	   = ip6_datagram_connect,
+	.disconnect	   = udp_disconnect,
+	.ioctl		   = udp_ioctl,
+	.destroy	   = udpv6_destroy_sock,
+	.setsockopt	   = udpv6_setsockopt,
+	.getsockopt	   = udpv6_getsockopt,
+	.sendmsg	   = udpv6_sendmsg,
+	.recvmsg	   = udpv6_recvmsg,
+	.backlog_rcv	   = udpv6_queue_rcv_skb,
+	.hash		   = udp_v6_hash,
+	.unhash		   = udp_v6_unhash,
+	.get_port	   = udp_v6_get_port,
+	.obj_size	   = sizeof(struct udp6_sock),
+#ifdef CONFIG_COMPAT
+	.compat_setsockopt = compat_udpv6_setsockopt,
+	.compat_getsockopt = compat_udpv6_getsockopt,
+#endif
 };
 
 static struct inet_protosw udpv6_protosw = {
diff --git a/net/ipv6/xfrm6_tunnel.c b/net/ipv6/xfrm6_tunnel.c
index 8cfc58b..08f9abb 100644
--- a/net/ipv6/xfrm6_tunnel.c
+++ b/net/ipv6/xfrm6_tunnel.c
@@ -31,6 +31,7 @@
 #include <net/protocol.h>
 #include <linux/ipv6.h>
 #include <linux/icmpv6.h>
+#include <linux/mutex.h>
 
 #ifdef CONFIG_IPV6_XFRM6_TUNNEL_DEBUG
 # define X6TDEBUG	3
@@ -357,19 +358,19 @@ static int xfrm6_tunnel_input(struct xfrm_state *x, struct xfrm_decap_state *dec
 }
 
 static struct xfrm6_tunnel *xfrm6_tunnel_handler;
-static DECLARE_MUTEX(xfrm6_tunnel_sem);
+static DEFINE_MUTEX(xfrm6_tunnel_mutex);
 
 int xfrm6_tunnel_register(struct xfrm6_tunnel *handler)
 {
 	int ret;
 
-	down(&xfrm6_tunnel_sem);
+	mutex_lock(&xfrm6_tunnel_mutex);
 	ret = 0;
 	if (xfrm6_tunnel_handler != NULL)
 		ret = -EINVAL;
 	if (!ret)
 		xfrm6_tunnel_handler = handler;
-	up(&xfrm6_tunnel_sem);
+	mutex_unlock(&xfrm6_tunnel_mutex);
 
 	return ret;
 }
@@ -380,13 +381,13 @@ int xfrm6_tunnel_deregister(struct xfrm6_tunnel *handler)
 {
 	int ret;
 
-	down(&xfrm6_tunnel_sem);
+	mutex_lock(&xfrm6_tunnel_mutex);
 	ret = 0;
 	if (xfrm6_tunnel_handler != handler)
 		ret = -EINVAL;
 	if (!ret)
 		xfrm6_tunnel_handler = NULL;
-	up(&xfrm6_tunnel_sem);
+	mutex_unlock(&xfrm6_tunnel_mutex);
 
 	synchronize_net();