Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6.26

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6.26: (1090 commits) [NET]: Fix and allocate less memory for ->priv'less netdevices [IPV6]: Fix dangling references on error in fib6_add(). [NETLABEL]: Fix NULL deref in netlbl_unlabel_staticlist_gen() if ifindex not found [PKT_SCHED]: Fix datalen check in tcf_simp_init(). [INET]: Uninline the __inet_inherit_port call. [INET]: Drop the inet_inherit_port() call. SCTP: Initialize partial_bytes_acked to 0, when all of the data is acked. [netdrvr] forcedeth: internal simplifications; changelog removal phylib: factor out get_phy_id from within get_phy_device PHY: add BCM5464 support to broadcom PHY driver cxgb3: Fix __must_check warning with dev_dbg. tc35815: Statistics cleanup natsemi: fix MMIO for PPC 44x platforms [TIPC]: Cleanup of TIPC reference table code [TIPC]: Optimized initialization of TIPC reference table [TIPC]: Remove inlining of reference table locking routines e1000: convert uint16_t style integers to u16 ixgb: convert uint16_t style integers to u16 sb1000.c: make const arrays static sb1000.c: stop inlining largish static functions ...
author: Linus Torvalds <torvalds@linux-foundation.org> 2008-04-18 18:02:35 -0700
committer: Linus Torvalds <torvalds@linux-foundation.org> 2008-04-18 18:02:35 -0700
commit: 334d094504c2fe1c44211ecb49146ae6bca8c321 (patch)
tree: d3c0f68e4b9f8e3d2ccc39e7dfe5de0534a5fad9 /net/ipv4
parent: d1a4be630fb068f251d64b62919f143c49ca8057 (diff)
parent: d1643d24c61b725bef399cc1cf2944b4c9c23177 (diff)
83 files changed, 2819 insertions, 1784 deletions
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 0d109504ed86..f2b5270efdaa 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -243,6 +243,23 @@ void build_ehash_secret(void)
 }
 EXPORT_SYMBOL(build_ehash_secret);
 
+static inline int inet_netns_ok(struct net *net, int protocol)
+{
+	int hash;
+	struct net_protocol *ipprot;
+
+	if (net == &init_net)
+		return 1;
+
+	hash = protocol & (MAX_INET_PROTOS - 1);
+	ipprot = rcu_dereference(inet_protos[hash]);
+
+	if (ipprot == NULL)
+		/* raw IP is OK */
+		return 1;
+	return ipprot->netns_ok;
+}
+
 /*
  *	Create an inet socket.
  */
@@ -259,9 +276,6 @@ static int inet_create(struct net *net, struct socket *sock, int protocol)
 	int try_loading_module = 0;
 	int err;
 
-	if (net != &init_net)
-		return -EAFNOSUPPORT;
-
 	if (sock->type != SOCK_RAW &&
 	    sock->type != SOCK_DGRAM &&
 	    !inet_ehash_secret)
@@ -320,6 +334,10 @@ lookup_protocol:
 	if (answer->capability > 0 && !capable(answer->capability))
 		goto out_rcu_unlock;
 
+	err = -EAFNOSUPPORT;
+	if (!inet_netns_ok(net, protocol))
+		goto out_rcu_unlock;
+
 	sock->ops = answer->ops;
 	answer_prot = answer->prot;
 	answer_no_check = answer->no_check;
@@ -446,7 +464,7 @@ int inet_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
 	if (addr_len < sizeof(struct sockaddr_in))
 		goto out;
 
-	chk_addr_ret = inet_addr_type(&init_net, addr->sin_addr.s_addr);
+	chk_addr_ret = inet_addr_type(sock_net(sk), addr->sin_addr.s_addr);
 
 	/* Not specified by any standard per-se, however it breaks too
 	 * many applications when removed.  It is unfortunate since
@@ -784,6 +802,7 @@ int inet_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
 {
 	struct sock *sk = sock->sk;
 	int err = 0;
+	struct net *net = sock_net(sk);
 
 	switch (cmd) {
 		case SIOCGSTAMP:
@@ -795,12 +814,12 @@ int inet_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
 		case SIOCADDRT:
 		case SIOCDELRT:
 		case SIOCRTMSG:
-			err = ip_rt_ioctl(sk->sk_net, cmd, (void __user *)arg);
+			err = ip_rt_ioctl(net, cmd, (void __user *)arg);
 			break;
 		case SIOCDARP:
 		case SIOCGARP:
 		case SIOCSARP:
-			err = arp_ioctl(sk->sk_net, cmd, (void __user *)arg);
+			err = arp_ioctl(net, cmd, (void __user *)arg);
 			break;
 		case SIOCGIFADDR:
 		case SIOCSIFADDR:
@@ -813,7 +832,7 @@ int inet_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
 		case SIOCSIFPFLAGS:
 		case SIOCGIFPFLAGS:
 		case SIOCSIFFLAGS:
-			err = devinet_ioctl(cmd, (void __user *)arg);
+			err = devinet_ioctl(net, cmd, (void __user *)arg);
 			break;
 		default:
 			if (sk->sk_prot->ioctl)
@@ -1058,8 +1077,8 @@ static int inet_sk_reselect_saddr(struct sock *sk)
 
 	if (sysctl_ip_dynaddr > 1) {
 		printk(KERN_INFO "%s(): shifting inet->"
-				 "saddr from %d.%d.%d.%d to %d.%d.%d.%d\n",
-		       __FUNCTION__,
+				 "saddr from " NIPQUAD_FMT " to " NIPQUAD_FMT "\n",
+		       __func__,
 		       NIPQUAD(old_saddr),
 		       NIPQUAD(new_saddr));
 	}
@@ -1113,7 +1132,7 @@ int inet_sk_rebuild_header(struct sock *sk)
 	};
 
 	security_sk_classify_flow(sk, &fl);
-	err = ip_route_output_flow(&init_net, &rt, &fl, sk, 0);
+	err = ip_route_output_flow(sock_net(sk), &rt, &fl, sk, 0);
 }
 	if (!err)
 		sk_setup_caps(sk, &rt->u.dst);
@@ -1231,6 +1250,29 @@ out:
 	return segs;
 }
 
+int inet_ctl_sock_create(struct sock **sk, unsigned short family,
+			 unsigned short type, unsigned char protocol,
+			 struct net *net)
+{
+	struct socket *sock;
+	int rc = sock_create_kern(family, type, protocol, &sock);
+
+	if (rc == 0) {
+		*sk = sock->sk;
+		(*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.
+		 */
+		(*sk)->sk_prot->unhash(*sk);
+
+		sk_change_net(*sk, net);
+	}
+	return rc;
+}
+
+EXPORT_SYMBOL_GPL(inet_ctl_sock_create);
+
 unsigned long snmp_fold_field(void *mib[], int offt)
 {
 	unsigned long res = 0;
@@ -1283,17 +1325,20 @@ static struct net_protocol tcp_protocol = {
 	.gso_send_check = tcp_v4_gso_send_check,
 	.gso_segment =	tcp_tso_segment,
 	.no_policy =	1,
+	.netns_ok =	1,
 };
 
 static struct net_protocol udp_protocol = {
 	.handler =	udp_rcv,
 	.err_handler =	udp_err,
 	.no_policy =	1,
+	.netns_ok =	1,
 };
 
 static struct net_protocol icmp_protocol = {
 	.handler =	icmp_rcv,
 	.no_policy =	1,
+	.netns_ok =	1,
 };
 
 static int __init init_ipv4_mibs(void)
@@ -1414,7 +1459,7 @@ static int __init inet_init(void)
 
 	ip_init();
 
-	tcp_v4_init(&inet_family_ops);
+	tcp_v4_init();
 
 	/* Setup TCP slab cache for open requests. */
 	tcp_init();
@@ -1429,7 +1474,8 @@ static int __init inet_init(void)
 	 *	Set the ICMP layer up
 	 */
 
-	icmp_init(&inet_family_ops);
+	if (icmp_init() < 0)
+		panic("Failed to create the ICMP control socket.\n");
 
 	/*
 	 *	Initialise the multicast router
diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c
index 8e17f65f4002..68b72a7a1806 100644
--- a/net/ipv4/arp.c
+++ b/net/ipv4/arp.c
@@ -242,7 +242,7 @@ static int arp_constructor(struct neighbour *neigh)
 		return -EINVAL;
 	}
 
-	neigh->type = inet_addr_type(&init_net, addr);
+	neigh->type = inet_addr_type(dev_net(dev), addr);
 
 	parms = in_dev->arp_parms;
 	__neigh_parms_put(neigh->parms);
@@ -341,14 +341,14 @@ static void arp_solicit(struct neighbour *neigh, struct sk_buff *skb)
 	switch (IN_DEV_ARP_ANNOUNCE(in_dev)) {
 	default:
 	case 0:		/* By default announce any local IP */
-		if (skb && inet_addr_type(&init_net, ip_hdr(skb)->saddr) == RTN_LOCAL)
+		if (skb && inet_addr_type(dev_net(dev), ip_hdr(skb)->saddr) == RTN_LOCAL)
 			saddr = ip_hdr(skb)->saddr;
 		break;
 	case 1:		/* Restrict announcements of saddr in same subnet */
 		if (!skb)
 			break;
 		saddr = ip_hdr(skb)->saddr;
-		if (inet_addr_type(&init_net, saddr) == RTN_LOCAL) {
+		if (inet_addr_type(dev_net(dev), saddr) == RTN_LOCAL) {
 			/* saddr should be known to target */
 			if (inet_addr_onlink(in_dev, target, saddr))
 				break;
@@ -424,7 +424,7 @@ static int arp_filter(__be32 sip, __be32 tip, struct net_device *dev)
 	int flag = 0;
 	/*unsigned long now; */
 
-	if (ip_route_output_key(&init_net, &rt, &fl) < 0)
+	if (ip_route_output_key(dev_net(dev), &rt, &fl) < 0)
 		return 1;
 	if (rt->u.dst.dev != dev) {
 		NET_INC_STATS_BH(LINUX_MIB_ARPFILTER);
@@ -475,9 +475,9 @@ int arp_find(unsigned char *haddr, struct sk_buff *skb)
 		return 1;
 	}
 
-	paddr = ((struct rtable*)skb->dst)->rt_gateway;
+	paddr = skb->rtable->rt_gateway;
 
-	if (arp_set_predefined(inet_addr_type(&init_net, paddr), haddr, paddr, dev))
+	if (arp_set_predefined(inet_addr_type(dev_net(dev), paddr), haddr, paddr, dev))
 		return 0;
 
 	n = __neigh_lookup(&arp_tbl, &paddr, dev, 1);
@@ -570,14 +570,13 @@ struct sk_buff *arp_create(int type, int ptype, __be32 dest_ip,
 	 *	Allocate a buffer
 	 */
 
-	skb = alloc_skb(sizeof(struct arphdr)+ 2*(dev->addr_len+4)
-				+ LL_RESERVED_SPACE(dev), GFP_ATOMIC);
+	skb = alloc_skb(arp_hdr_len(dev) + LL_RESERVED_SPACE(dev), GFP_ATOMIC);
 	if (skb == NULL)
 		return NULL;
 
 	skb_reserve(skb, LL_RESERVED_SPACE(dev));
 	skb_reset_network_header(skb);
-	arp = (struct arphdr *) skb_put(skb,sizeof(struct arphdr) + 2*(dev->addr_len+4));
+	arp = (struct arphdr *) skb_put(skb, arp_hdr_len(dev));
 	skb->dev = dev;
 	skb->protocol = htons(ETH_P_ARP);
 	if (src_hw == NULL)
@@ -710,6 +709,7 @@ static int arp_process(struct sk_buff *skb)
 	u16 dev_type = dev->type;
 	int addr_type;
 	struct neighbour *n;
+	struct net *net = dev_net(dev);
 
 	/* arp_rcv below verifies the ARP header and verifies the device
 	 * is ARP'able.
@@ -805,7 +805,7 @@ static int arp_process(struct sk_buff *skb)
 	/* Special case: IPv4 duplicate address detection packet (RFC2131) */
 	if (sip == 0) {
 		if (arp->ar_op == htons(ARPOP_REQUEST) &&
-		    inet_addr_type(&init_net, tip) == RTN_LOCAL &&
+		    inet_addr_type(net, tip) == RTN_LOCAL &&
 		    !arp_ignore(in_dev, sip, tip))
 			arp_send(ARPOP_REPLY, ETH_P_ARP, sip, dev, tip, sha,
 				 dev->dev_addr, sha);
@@ -815,7 +815,7 @@ static int arp_process(struct sk_buff *skb)
 	if (arp->ar_op == htons(ARPOP_REQUEST) &&
 	    ip_route_input(skb, tip, sip, 0, dev) == 0) {
 
-		rt = (struct rtable*)skb->dst;
+		rt = skb->rtable;
 		addr_type = rt->rt_type;
 
 		if (addr_type == RTN_LOCAL) {
@@ -835,7 +835,7 @@ static int arp_process(struct sk_buff *skb)
 			goto out;
 		} else if (IN_DEV_FORWARD(in_dev)) {
 			    if (addr_type == RTN_UNICAST  && rt->u.dst.dev != dev &&
-			     (arp_fwd_proxy(in_dev, rt) || pneigh_lookup(&arp_tbl, &init_net, &tip, dev, 0))) {
+			     (arp_fwd_proxy(in_dev, rt) || pneigh_lookup(&arp_tbl, net, &tip, dev, 0))) {
 				n = neigh_event_ns(&arp_tbl, sha, &sip, dev);
 				if (n)
 					neigh_release(n);
@@ -858,14 +858,14 @@ static int arp_process(struct sk_buff *skb)
 
 	n = __neigh_lookup(&arp_tbl, &sip, dev, 0);
 
-	if (IPV4_DEVCONF_ALL(dev->nd_net, ARP_ACCEPT)) {
+	if (IPV4_DEVCONF_ALL(dev_net(dev), ARP_ACCEPT)) {
 		/* Unsolicited ARP is not accepted by default.
 		   It is possible, that this option should be enabled for some
 		   devices (strip is candidate)
 		 */
 		if (n == NULL &&
 		    arp->ar_op == htons(ARPOP_REPLY) &&
-		    inet_addr_type(&init_net, sip) == RTN_UNICAST)
+		    inet_addr_type(net, sip) == RTN_UNICAST)
 			n = __neigh_lookup(&arp_tbl, &sip, dev, 1);
 	}
 
@@ -912,13 +912,8 @@ static int arp_rcv(struct sk_buff *skb, struct net_device *dev,
 {
 	struct arphdr *arp;
 
-	if (dev->nd_net != &init_net)
-		goto freeskb;
-
 	/* ARP header, plus 2 device addresses, plus 2 IP addresses.  */
-	if (!pskb_may_pull(skb, (sizeof(struct arphdr) +
-				 (2 * dev->addr_len) +
-				 (2 * sizeof(u32)))))
+	if (!pskb_may_pull(skb, arp_hdr_len(dev)))
 		goto freeskb;
 
 	arp = arp_hdr(skb);
@@ -1201,9 +1196,6 @@ static int arp_netdev_event(struct notifier_block *this, unsigned long event, vo
 {
 	struct net_device *dev = ptr;
 
-	if (dev->nd_net != &init_net)
-		return NOTIFY_DONE;
-
 	switch (event) {
 	case NETDEV_CHANGEADDR:
 		neigh_changeaddr(&arp_tbl, dev);
@@ -1318,7 +1310,7 @@ static void arp_format_neigh_entry(struct seq_file *seq,
 #if defined(CONFIG_AX25) || defined(CONFIG_AX25_MODULE)
 	}
 #endif
-	sprintf(tbuf, "%u.%u.%u.%u", NIPQUAD(*(u32*)n->primary_key));
+	sprintf(tbuf, NIPQUAD_FMT, NIPQUAD(*(u32*)n->primary_key));
 	seq_printf(seq, "%-16s 0x%-10x0x%-10x%s     *        %s\n",
 		   tbuf, hatype, arp_state_to_flags(n), hbuffer, dev->name);
 	read_unlock(&n->lock);
@@ -1331,7 +1323,7 @@ static void arp_format_pneigh_entry(struct seq_file *seq,
 	int hatype = dev ? dev->type : 0;
 	char tbuf[16];
 
-	sprintf(tbuf, "%u.%u.%u.%u", NIPQUAD(*(u32*)n->key));
+	sprintf(tbuf, NIPQUAD_FMT, NIPQUAD(*(u32*)n->key));
 	seq_printf(seq, "%-16s 0x%-10x0x%-10x%s     *        %s\n",
 		   tbuf, hatype, ATF_PUBL | ATF_PERM, "00:00:00:00:00:00",
 		   dev ? dev->name : "*");
@@ -1385,13 +1377,29 @@ static const struct file_operations arp_seq_fops = {
 	.release	= seq_release_net,
 };
 
-static int __init arp_proc_init(void)
+
+static int __net_init arp_net_init(struct net *net)
 {
-	if (!proc_net_fops_create(&init_net, "arp", S_IRUGO, &arp_seq_fops))
+	if (!proc_net_fops_create(net, "arp", S_IRUGO, &arp_seq_fops))
 		return -ENOMEM;
 	return 0;
 }
 
+static void __net_exit arp_net_exit(struct net *net)
+{
+	proc_net_remove(net, "arp");
+}
+
+static struct pernet_operations arp_net_ops = {
+	.init = arp_net_init,
+	.exit = arp_net_exit,
+};
+
+static int __init arp_proc_init(void)
+{
+	return register_pernet_subsys(&arp_net_ops);
+}
+
 #else /* CONFIG_PROC_FS */
 
 static int __init arp_proc_init(void)
diff --git a/net/ipv4/cipso_ipv4.c b/net/ipv4/cipso_ipv4.c
index 8cd357f41283..4637ded3dba8 100644
--- a/net/ipv4/cipso_ipv4.c
+++ b/net/ipv4/cipso_ipv4.c
@@ -1800,7 +1800,6 @@ int cipso_v4_sock_setattr(struct sock *sk,
 	}
 	memcpy(opt->__data, buf, buf_len);
 	opt->optlen = opt_len;
-	opt->is_data = 1;
 	opt->cipso = sizeof(struct iphdr);
 	kfree(buf);
 	buf = NULL;
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index 87490f7bb0f7..6848e4760f34 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -165,7 +165,7 @@ static struct in_device *inetdev_init(struct net_device *dev)
 	if (!in_dev)
 		goto out;
 	INIT_RCU_HEAD(&in_dev->rcu_head);
-	memcpy(&in_dev->cnf, dev->nd_net->ipv4.devconf_dflt,
+	memcpy(&in_dev->cnf, dev_net(dev)->ipv4.devconf_dflt,
 			sizeof(in_dev->cnf));
 	in_dev->cnf.sysctl = NULL;
 	in_dev->dev = dev;
@@ -437,7 +437,7 @@ struct in_ifaddr *inet_ifa_byprefix(struct in_device *in_dev, __be32 prefix,
 
 static int inet_rtm_deladdr(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
 {
-	struct net *net = skb->sk->sk_net;
+	struct net *net = sock_net(skb->sk);
 	struct nlattr *tb[IFA_MAX+1];
 	struct in_device *in_dev;
 	struct ifaddrmsg *ifm;
@@ -446,9 +446,6 @@ static int inet_rtm_deladdr(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg
 
 	ASSERT_RTNL();
 
-	if (net != &init_net)
-		return -EINVAL;
-
 	err = nlmsg_parse(nlh, sizeof(*ifm), tb, IFA_MAX, ifa_ipv4_policy);
 	if (err < 0)
 		goto errout;
@@ -555,14 +552,11 @@ errout:
 
 static int inet_rtm_newaddr(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
 {
-	struct net *net = skb->sk->sk_net;
+	struct net *net = sock_net(skb->sk);
 	struct in_ifaddr *ifa;
 
 	ASSERT_RTNL();
 
-	if (net != &init_net)
-		return -EINVAL;
-
 	ifa = rtm_to_ifaddr(net, nlh);
 	if (IS_ERR(ifa))
 		return PTR_ERR(ifa);
@@ -595,7 +589,7 @@ static __inline__ int inet_abc_len(__be32 addr)
 }
 
 
-int devinet_ioctl(unsigned int cmd, void __user *arg)
+int devinet_ioctl(struct net *net, unsigned int cmd, void __user *arg)
 {
 	struct ifreq ifr;
 	struct sockaddr_in sin_orig;
@@ -624,7 +618,7 @@ int devinet_ioctl(unsigned int cmd, void __user *arg)
 		*colon = 0;
 
 #ifdef CONFIG_KMOD
-	dev_load(&init_net, ifr.ifr_name);
+	dev_load(net, ifr.ifr_name);
 #endif
 
 	switch (cmd) {
@@ -665,7 +659,7 @@ int devinet_ioctl(unsigned int cmd, void __user *arg)
 	rtnl_lock();
 
 	ret = -ENODEV;
-	if ((dev = __dev_get_by_name(&init_net, ifr.ifr_name)) == NULL)
+	if ((dev = __dev_get_by_name(net, ifr.ifr_name)) == NULL)
 		goto done;
 
 	if (colon)
@@ -878,6 +872,7 @@ __be32 inet_select_addr(const struct net_device *dev, __be32 dst, int scope)
 {
 	__be32 addr = 0;
 	struct in_device *in_dev;
+	struct net *net = dev_net(dev);
 
 	rcu_read_lock();
 	in_dev = __in_dev_get_rcu(dev);
@@ -906,7 +901,7 @@ no_in_dev:
 	 */
 	read_lock(&dev_base_lock);
 	rcu_read_lock();
-	for_each_netdev(&init_net, dev) {
+	for_each_netdev(net, dev) {
 		if ((in_dev = __in_dev_get_rcu(dev)) == NULL)
 			continue;
 
@@ -979,7 +974,7 @@ __be32 inet_confirm_addr(struct in_device *in_dev,
 	if (scope != RT_SCOPE_LINK)
 		return confirm_addr_indev(in_dev, dst, local, scope);
 
-	net = in_dev->dev->nd_net;
+	net = dev_net(in_dev->dev);
 	read_lock(&dev_base_lock);
 	rcu_read_lock();
 	for_each_netdev(net, dev) {
@@ -1045,9 +1040,6 @@ static int inetdev_event(struct notifier_block *this, unsigned long event,
 	struct net_device *dev = ptr;
 	struct in_device *in_dev = __in_dev_get_rtnl(dev);
 
-	if (dev->nd_net != &init_net)
-		return NOTIFY_DONE;
-
 	ASSERT_RTNL();
 
 	if (!in_dev) {
@@ -1166,16 +1158,13 @@ nla_put_failure:
 
 static int inet_dump_ifaddr(struct sk_buff *skb, struct netlink_callback *cb)
 {
-	struct net *net = skb->sk->sk_net;
+	struct net *net = sock_net(skb->sk);
 	int idx, ip_idx;
 	struct net_device *dev;
 	struct in_device *in_dev;
 	struct in_ifaddr *ifa;
 	int s_ip_idx, s_idx = cb->args[0];
 
-	if (net != &init_net)
-		return 0;
-
 	s_ip_idx = ip_idx = cb->args[1];
 	idx = 0;
 	for_each_netdev(net, dev) {
@@ -1214,7 +1203,7 @@ static void rtmsg_ifa(int event, struct in_ifaddr* ifa, struct nlmsghdr *nlh,
 	int err = -ENOBUFS;
 	struct net *net;
 
-	net = ifa->ifa_dev->dev->nd_net;
+	net = dev_net(ifa->ifa_dev->dev);
 	skb = nlmsg_new(inet_nlmsg_size(), GFP_KERNEL);
 	if (skb == NULL)
 		goto errout;
@@ -1528,7 +1517,7 @@ static void devinet_sysctl_register(struct in_device *idev)
 {
 	neigh_sysctl_register(idev->dev, idev->arp_parms, NET_IPV4,
 			NET_IPV4_NEIGH, "ipv4", NULL, NULL);
-	__devinet_sysctl_register(idev->dev->nd_net, idev->dev->name,
+	__devinet_sysctl_register(dev_net(idev->dev), idev->dev->name,
 			idev->dev->ifindex, &idev->cnf);
 }
 
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index 86ff2711fc95..0f1557a4ac7a 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -257,7 +257,7 @@ int fib_validate_source(__be32 src, __be32 dst, u8 tos, int oif,
 	if (in_dev == NULL)
 		goto e_inval;
 
-	net = dev->nd_net;
+	net = dev_net(dev);
 	if (fib_lookup(net, &fl, &res))
 		goto last_resort;
 	if (res.type != RTN_UNICAST)
@@ -583,7 +583,7 @@ errout:
 
 static int inet_rtm_delroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
 {
-	struct net *net = skb->sk->sk_net;
+	struct net *net = sock_net(skb->sk);
 	struct fib_config cfg;
 	struct fib_table *tb;
 	int err;
@@ -605,7 +605,7 @@ errout:
 
 static int inet_rtm_newroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
 {
-	struct net *net = skb->sk->sk_net;
+	struct net *net = sock_net(skb->sk);
 	struct fib_config cfg;
 	struct fib_table *tb;
 	int err;
@@ -627,7 +627,7 @@ errout:
 
 static int inet_dump_fib(struct sk_buff *skb, struct netlink_callback *cb)
 {
-	struct net *net = skb->sk->sk_net;
+	struct net *net = sock_net(skb->sk);
 	unsigned int h, s_h;
 	unsigned int e = 0, s_e;
 	struct fib_table *tb;
@@ -674,7 +674,7 @@ out:
 
 static void fib_magic(int cmd, int type, __be32 dst, int dst_len, struct in_ifaddr *ifa)
 {
-	struct net *net = ifa->ifa_dev->dev->nd_net;
+	struct net *net = dev_net(ifa->ifa_dev->dev);
 	struct fib_table *tb;
 	struct fib_config cfg = {
 		.fc_protocol = RTPROT_KERNEL,
@@ -801,15 +801,15 @@ static void fib_del_ifaddr(struct in_ifaddr *ifa)
 		fib_magic(RTM_DELROUTE, RTN_LOCAL, ifa->ifa_local, 32, prim);
 
 		/* Check, that this local address finally disappeared. */
-		if (inet_addr_type(dev->nd_net, ifa->ifa_local) != RTN_LOCAL) {
+		if (inet_addr_type(dev_net(dev), ifa->ifa_local) != RTN_LOCAL) {
 			/* And the last, but not the least thing.
 			   We must flush stray FIB entries.
 
 			   First of all, we scan fib_info list searching
 			   for stray nexthop entries, then ignite fib_flush.
 			*/
-			if (fib_sync_down_addr(dev->nd_net, ifa->ifa_local))
-				fib_flush(dev->nd_net);
+			if (fib_sync_down_addr(dev_net(dev), ifa->ifa_local))
+				fib_flush(dev_net(dev));
 		}
 	}
 #undef LOCAL_OK
@@ -857,7 +857,7 @@ static void nl_fib_input(struct sk_buff *skb)
 	struct fib_table *tb;
 	u32 pid;
 
-	net = skb->sk->sk_net;
+	net = sock_net(skb->sk);
 	nlh = nlmsg_hdr(skb);
 	if (skb->len < NLMSG_SPACE(0) || skb->len < nlh->nlmsg_len ||
 	    nlh->nlmsg_len < NLMSG_LENGTH(sizeof(*frn)))
@@ -899,7 +899,7 @@ static void nl_fib_lookup_exit(struct net *net)
 static void fib_disable_ip(struct net_device *dev, int force)
 {
 	if (fib_sync_down_dev(dev, force))
-		fib_flush(dev->nd_net);
+		fib_flush(dev_net(dev));
 	rt_cache_flush(0);
 	arp_ifdown(dev);
 }
diff --git a/net/ipv4/fib_hash.c b/net/ipv4/fib_hash.c
index 8d58d85dfac6..02088deb0461 100644
--- a/net/ipv4/fib_hash.c
+++ b/net/ipv4/fib_hash.c
@@ -821,7 +821,7 @@ static struct fib_alias *fib_get_first(struct seq_file *seq)
 	struct fib_table *main_table;
 	struct fn_hash *table;
 
-	main_table = fib_get_table(iter->p.net, RT_TABLE_MAIN);
+	main_table = fib_get_table(seq_file_net(seq), RT_TABLE_MAIN);
 	table = (struct fn_hash *)main_table->tb_data;
 
 	iter->bucket    = 0;
@@ -959,11 +959,10 @@ static struct fib_alias *fib_get_idx(struct seq_file *seq, loff_t pos)
 static void *fib_seq_start(struct seq_file *seq, loff_t *pos)
 	__acquires(fib_hash_lock)
 {
-	struct fib_iter_state *iter = seq->private;
 	void *v = NULL;
 
 	read_lock(&fib_hash_lock);
-	if (fib_get_table(iter->p.net, RT_TABLE_MAIN))
+	if (fib_get_table(seq_file_net(seq), RT_TABLE_MAIN))
 		v = *pos ? fib_get_idx(seq, *pos - 1) : SEQ_START_TOKEN;
 	return v;
 }
diff --git a/net/ipv4/fib_rules.c b/net/ipv4/fib_rules.c
index 19274d01afa4..1fb56876be54 100644
--- a/net/ipv4/fib_rules.c
+++ b/net/ipv4/fib_rules.c
@@ -137,7 +137,7 @@ static int fib4_rule_configure(struct fib_rule *rule, struct sk_buff *skb,
 			       struct nlmsghdr *nlh, struct fib_rule_hdr *frh,
 			       struct nlattr **tb)
 {
-	struct net *net = skb->sk->sk_net;
+	struct net *net = sock_net(skb->sk);
 	int err = -EINVAL;
 	struct fib4_rule *rule4 = (struct fib4_rule *) rule;
 
diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index a13c84763d4c..3b83c34019fc 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -152,6 +152,7 @@ void free_fib_info(struct fib_info *fi)
 		nh->nh_dev = NULL;
 	} endfor_nexthops(fi);
 	fib_info_cnt--;
+	release_net(fi->fib_net);
 	kfree(fi);
 }
 
@@ -730,7 +731,7 @@ struct fib_info *fib_create_info(struct fib_config *cfg)
 		goto failure;
 	fib_info_cnt++;
 
-	fi->fib_net = net;
+	fi->fib_net = hold_net(net);
 	fi->fib_protocol = cfg->fc_protocol;
 	fi->fib_flags = cfg->fc_flags;
 	fi->fib_priority = cfg->fc_priority;
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index f6cdc012eec5..ea294fffb9ce 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -122,7 +122,10 @@ struct tnode {
 	unsigned char bits;		/* 2log(KEYLENGTH) bits needed */
 	unsigned int full_children;	/* KEYLENGTH bits needed */
 	unsigned int empty_children;	/* KEYLENGTH bits needed */
-	struct rcu_head rcu;
+	union {
+		struct rcu_head rcu;
+		struct work_struct work;
+	};
 	struct node *child[0];
 };
 
@@ -160,7 +163,6 @@ static void tnode_put_child_reorg(struct tnode *tn, int i, struct node *n,
 static struct node *resize(struct trie *t, struct tnode *tn);
 static struct tnode *inflate(struct trie *t, struct tnode *tn);
 static struct tnode *halve(struct trie *t, struct tnode *tn);
-static void tnode_free(struct tnode *tn);
 
 static struct kmem_cache *fn_alias_kmem __read_mostly;
 static struct kmem_cache *trie_leaf_kmem __read_mostly;
@@ -334,6 +336,11 @@ static void __leaf_free_rcu(struct rcu_head *head)
 	kmem_cache_free(trie_leaf_kmem, l);
 }
 
+static inline void free_leaf(struct leaf *l)
+{
+	call_rcu_bh(&l->rcu, __leaf_free_rcu);
+}
+
 static void __leaf_info_free_rcu(struct rcu_head *head)
 {
 	kfree(container_of(head, struct leaf_info, rcu));
@@ -346,16 +353,16 @@ static inline void free_leaf_info(struct leaf_info *leaf)
 
 static struct tnode *tnode_alloc(size_t size)
 {
-	struct page *pages;
-
 	if (size <= PAGE_SIZE)
 		return kzalloc(size, GFP_KERNEL);
+	else
+		return __vmalloc(size, GFP_KERNEL | __GFP_ZERO, PAGE_KERNEL);
+}
 
-	pages = alloc_pages(GFP_KERNEL|__GFP_ZERO, get_order(size));
-	if (!pages)
-		return NULL;
-
-	return page_address(pages);
+static void __tnode_vfree(struct work_struct *arg)
+{
+	struct tnode *tn = container_of(arg, struct tnode, work);
+	vfree(tn);
 }
 
 static void __tnode_free_rcu(struct rcu_head *head)
@@ -366,16 +373,17 @@ static void __tnode_free_rcu(struct rcu_head *head)
 
 	if (size <= PAGE_SIZE)
 		kfree(tn);
-	else
-		free_pages((unsigned long)tn, get_order(size));
+	else {
+		INIT_WORK(&tn->work, __tnode_vfree);
+		schedule_work(&tn->work);
+	}
 }
 
 static inline void tnode_free(struct tnode *tn)
 {
-	if (IS_LEAF(tn)) {
-		struct leaf *l = (struct leaf *) tn;
-		call_rcu_bh(&l->rcu, __leaf_free_rcu);
-	} else
+	if (IS_LEAF(tn))
+		free_leaf((struct leaf *) tn);
+	else
 		call_rcu(&tn->rcu, __tnode_free_rcu);
 }
 
@@ -1086,7 +1094,7 @@ static struct list_head *fib_insert_node(struct trie *t, u32 key, int plen)
 	li = leaf_info_new(plen);
 
 	if (!li) {
-		tnode_free((struct tnode *) l);
+		free_leaf(l);
 		return NULL;
 	}
 
@@ -1122,7 +1130,7 @@ static struct list_head *fib_insert_node(struct trie *t, u32 key, int plen)
 
 		if (!tn) {
 			free_leaf_info(li);
-			tnode_free((struct tnode *) l);
+			free_leaf(l);
 			return NULL;
 		}
 
@@ -1578,7 +1586,7 @@ static void trie_leaf_remove(struct trie *t, struct leaf *l)
 	} else
 		rcu_assign_pointer(t->trie, NULL);
 
-	tnode_free((struct tnode *) l);
+	free_leaf(l);
 }
 
 /*
@@ -1665,7 +1673,7 @@ static int fn_trie_delete(struct fib_table *tb, struct fib_config *cfg)
 	return 0;
 }
 
-static int trie_flush_list(struct trie *t, struct list_head *head)
+static int trie_flush_list(struct list_head *head)
 {
 	struct fib_alias *fa, *fa_node;
 	int found = 0;
@@ -1683,7 +1691,7 @@ static int trie_flush_list(struct trie *t, struct list_head *head)
 	return found;
 }
 
-static int trie_flush_leaf(struct trie *t, struct leaf *l)
+static int trie_flush_leaf(struct leaf *l)
 {
 	int found = 0;
 	struct hlist_head *lih = &l->list;
@@ -1691,7 +1699,7 @@ static int trie_flush_leaf(struct trie *t, struct leaf *l)
 	struct leaf_info *li = NULL;
 
 	hlist_for_each_entry_safe(li, node, tmp, lih, hlist) {
-		found += trie_flush_list(t, &li->falh);
+		found += trie_flush_list(&li->falh);
 
 		if (list_empty(&li->falh)) {
 			hlist_del_rcu(&li->hlist);
@@ -1782,7 +1790,7 @@ static int fn_trie_flush(struct fib_table *tb)
 	int found = 0;
 
 	for (l = trie_firstleaf(t); l; l = trie_nextleaf(l)) {
-		found += trie_flush_leaf(t, l);
+		found += trie_flush_leaf(l);
 
 		if (ll && hlist_empty(&ll->list))
 			trie_leaf_remove(t, ll);
@@ -2029,9 +2037,8 @@ struct fib_table *fib_hash_table(u32 id)
 /* Depth first Trie walk iterator */
 struct fib_trie_iter {
 	struct seq_net_private p;
-	struct trie *trie_local, *trie_main;
+	struct fib_table *tb;
 	struct tnode *tnode;
-	struct trie *trie;
 	unsigned index;
 	unsigned depth;
 };
@@ -2084,31 +2091,26 @@ rescan:
 static struct node *fib_trie_get_first(struct fib_trie_iter *iter,
 				       struct trie *t)
 {
-	struct node *n ;
+	struct node *n;
 
 	if (!t)
 		return NULL;
 
 	n = rcu_dereference(t->trie);
-
-	if (!iter)
+	if (!n)
 		return NULL;
 
-	if (n) {
-		if (IS_TNODE(n)) {
-			iter->tnode = (struct tnode *) n;
-			iter->trie = t;
-			iter->index = 0;
-			iter->depth = 1;
-		} else {
-			iter->tnode = NULL;
-			iter->trie  = t;
-			iter->index = 0;
-			iter->depth = 0;
-		}
-		return n;
+	if (IS_TNODE(n)) {
+		iter->tnode = (struct tnode *) n;
+		iter->index = 0;
+		iter->depth = 1;
+	} else {
+		iter->tnode = NULL;
+		iter->index = 0;
+		iter->depth = 0;
 	}
-	return NULL;
+
+	return n;
 }
 
 static void trie_collect_stats(struct trie *t, struct trie_stat *s)
@@ -2119,8 +2121,7 @@ static void trie_collect_stats(struct trie *t, struct trie_stat *s)
 	memset(s, 0, sizeof(*s));
 
 	rcu_read_lock();
-	for (n = fib_trie_get_first(&iter, t); n;
-	     n = fib_trie_get_next(&iter)) {
+	for (n = fib_trie_get_first(&iter, t); n; n = fib_trie_get_next(&iter)) {
 		if (IS_LEAF(n)) {
 			struct leaf *l = (struct leaf *)n;
 			struct leaf_info *li;
@@ -2209,36 +2210,48 @@ static void trie_show_usage(struct seq_file *seq,
 }
 #endif /*  CONFIG_IP_FIB_TRIE_STATS */
 
-static void fib_trie_show(struct seq_file *seq, const char *name,
-			  struct trie *trie)
+static void fib_table_print(struct seq_file *seq, struct fib_table *tb)
 {
-	struct trie_stat stat;
-
-	trie_collect_stats(trie, &stat);
-	seq_printf(seq, "%s:\n", name);
-	trie_show_stats(seq, &stat);
-#ifdef CONFIG_IP_FIB_TRIE_STATS
-	trie_show_usage(seq, &trie->stats);
-#endif
+	if (tb->tb_id == RT_TABLE_LOCAL)
+		seq_puts(seq, "Local:\n");
+	else if (tb->tb_id == RT_TABLE_MAIN)
+		seq_puts(seq, "Main:\n");
+	else
+		seq_printf(seq, "Id %d:\n", tb->tb_id);
 }
 
+
 static int fib_triestat_seq_show(struct seq_file *seq, void *v)
 {
 	struct net *net = (struct net *)seq->private;
-	struct fib_table *tb;
+	unsigned int h;
 
 	seq_printf(seq,
 		   "Basic info: size of leaf:"
 		   " %Zd bytes, size of tnode: %Zd bytes.\n",
 		   sizeof(struct leaf), sizeof(struct tnode));
 
-	tb = fib_get_table(net, RT_TABLE_LOCAL);
-	if (tb)
-		fib_trie_show(seq, "Local", (struct trie *) tb->tb_data);
+	for (h = 0; h < FIB_TABLE_HASHSZ; h++) {
+		struct hlist_head *head = &net->ipv4.fib_table_hash[h];
+		struct hlist_node *node;
+		struct fib_table *tb;
+
+		hlist_for_each_entry_rcu(tb, node, head, tb_hlist) {
+			struct trie *t = (struct trie *) tb->tb_data;
+			struct trie_stat stat;
+
+			if (!t)
+				continue;
 
-	tb = fib_get_table(net, RT_TABLE_MAIN);
-	if (tb)
-		fib_trie_show(seq, "Main", (struct trie *) tb->tb_data);
+			fib_table_print(seq, tb);
+
+			trie_collect_stats(t, &stat);
+			trie_show_stats(seq, &stat);
+#ifdef CONFIG_IP_FIB_TRIE_STATS
+			trie_show_usage(seq, &t->stats);
+#endif
+		}
+	}
 
 	return 0;
 }
@@ -2274,67 +2287,79 @@ static const struct file_operations fib_triestat_fops = {
 	.release = fib_triestat_seq_release,
 };
 
-static struct node *fib_trie_get_idx(struct fib_trie_iter *iter,
-				      loff_t pos)
+static struct node *fib_trie_get_idx(struct seq_file *seq, loff_t pos)
 {
+	struct fib_trie_iter *iter = seq->private;
+	struct net *net = seq_file_net(seq);
 	loff_t idx = 0;
-	struct node *n;
+	unsigned int h;
 
-	for (n = fib_trie_get_first(iter, iter->trie_local);
-	     n; ++idx, n = fib_trie_get_next(iter)) {
-		if (pos == idx)
-			return n;
-	}
+	for (h = 0; h < FIB_TABLE_HASHSZ; h++) {
+		struct hlist_head *head = &net->ipv4.fib_table_hash[h];
+		struct hlist_node *node;
+		struct fib_table *tb;
 
-	for (n = fib_trie_get_first(iter, iter->trie_main);
-	     n; ++idx, n = fib_trie_get_next(iter)) {
-		if (pos == idx)
-			return n;
+		hlist_for_each_entry_rcu(tb, node, head, tb_hlist) {
+			struct node *n;
+
+			for (n = fib_trie_get_first(iter,
+						    (struct trie *) tb->tb_data);
+			     n; n = fib_trie_get_next(iter))
+				if (pos == idx++) {
+					iter->tb = tb;
+					return n;
+				}
+		}
 	}
+
 	return NULL;
 }
 
 static void *fib_trie_seq_start(struct seq_file *seq, loff_t *pos)
 	__acquires(RCU)
 {
-	struct fib_trie_iter *iter = seq->private;
-	struct fib_table *tb;
-
-	if (!iter->trie_local) {
-		tb = fib_get_table(iter->p.net, RT_TABLE_LOCAL);
-		if (tb)
-			iter->trie_local = (struct trie *) tb->tb_data;
-	}
-	if (!iter->trie_main) {
-		tb = fib_get_table(iter->p.net, RT_TABLE_MAIN);
-		if (tb)
-			iter->trie_main = (struct trie *) tb->tb_data;
-	}
 	rcu_read_lock();
-	if (*pos == 0)
-		return SEQ_START_TOKEN;
-	return fib_trie_get_idx(iter, *pos - 1);
+	return fib_trie_get_idx(seq, *pos);
 }
 
 static void *fib_trie_seq_next(struct seq_file *seq, void *v, loff_t *pos)
 {
 	struct fib_trie_iter *iter = seq->private;
-	void *l = v;
+	struct net *net = seq_file_net(seq);
+	struct fib_table *tb = iter->tb;
+	struct hlist_node *tb_node;
+	unsigned int h;
+	struct node *n;
 
 	++*pos;
-	if (v == SEQ_START_TOKEN)
-		return fib_trie_get_idx(iter, 0);
-
-	v = fib_trie_get_next(iter);
-	BUG_ON(v == l);
-	if (v)
-		return v;
+	/* next node in same table */
+	n = fib_trie_get_next(iter);
+	if (n)
+		return n;
 
-	/* continue scan in next trie */
-	if (iter->trie == iter->trie_local)
-		return fib_trie_get_first(iter, iter->trie_main);
+	/* walk rest of this hash chain */
+	h = tb->tb_id & (FIB_TABLE_HASHSZ - 1);
+	while ( (tb_node = rcu_dereference(tb->tb_hlist.next)) ) {
+		tb = hlist_entry(tb_node, struct fib_table, tb_hlist);
+		n = fib_trie_get_first(iter, (struct trie *) tb->tb_data);
+		if (n)
+			goto found;
+	}
 
+	/* new hash chain */
+	while (++h < FIB_TABLE_HASHSZ) {
+		struct hlist_head *head = &net->ipv4.fib_table_hash[h];
+		hlist_for_each_entry_rcu(tb, tb_node, head, tb_hlist) {
+			n = fib_trie_get_first(iter, (struct trie *) tb->tb_data);
+			if (n)
+				goto found;
+		}
+	}
 	return NULL;
+
+found:
+	iter->tb = tb;
+	return n;
 }
 
 static void fib_trie_seq_stop(struct seq_file *seq, void *v)
@@ -2391,22 +2416,15 @@ static int fib_trie_seq_show(struct seq_file *seq, void *v)
 	const struct fib_trie_iter *iter = seq->private;
 	struct node *n = v;
 
-	if (v == SEQ_START_TOKEN)
-		return 0;
-
-	if (!node_parent_rcu(n)) {
-		if (iter->trie == iter->trie_local)
-			seq_puts(seq, "<local>:\n");
-		else
-			seq_puts(seq, "<main>:\n");
-	}
+	if (!node_parent_rcu(n))
+		fib_table_print(seq, iter->tb);
 
 	if (IS_TNODE(n)) {
 		struct tnode *tn = (struct tnode *) n;
 		__be32 prf = htonl(mask_pfx(tn->key, tn->pos));
 
 		seq_indent(seq, iter->depth-1);
-		seq_printf(seq, "  +-- %d.%d.%d.%d/%d %d %d %d\n",
+		seq_printf(seq, "  +-- " NIPQUAD_FMT "/%d %d %d %d\n",
 			   NIPQUAD(prf), tn->pos, tn->bits, tn->full_children,
 			   tn->empty_children);
 
@@ -2417,7 +2435,7 @@ static int fib_trie_seq_show(struct seq_file *seq, void *v)
 		__be32 val = htonl(l->key);
 
 		seq_indent(seq, iter->depth);
-		seq_printf(seq, "  |-- %d.%d.%d.%d\n", NIPQUAD(val));
+		seq_printf(seq, "  |-- " NIPQUAD_FMT "\n", NIPQUAD(val));
 
 		hlist_for_each_entry_rcu(li, node, &l->list, hlist) {
 			struct fib_alias *fa;
@@ -2502,7 +2520,7 @@ static void *fib_route_seq_start(struct seq_file *seq, loff_t *pos)
 	struct fib_table *tb;
 
 	rcu_read_lock();
-	tb = fib_get_table(iter->p.net, RT_TABLE_MAIN);
+	tb = fib_get_table(seq_file_net(seq), RT_TABLE_MAIN);
 	if (!tb)
 		return NULL;
 
diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index 40508babad8c..f064031f2031 100644
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -93,6 +93,7 @@
 #include <asm/uaccess.h>
 #include <net/checksum.h>
 #include <net/xfrm.h>
+#include <net/inet_common.h>
 
 /*
  *	Build xmit assembly blocks
@@ -188,29 +189,6 @@ struct icmp_err icmp_err_convert[] = {
 	},
 };
 
-/* Control parameters for ECHO replies. */
-int sysctl_icmp_echo_ignore_all __read_mostly;
-int sysctl_icmp_echo_ignore_broadcasts __read_mostly = 1;
-
-/* Control parameter - ignore bogus broadcast responses? */
-int sysctl_icmp_ignore_bogus_error_responses __read_mostly = 1;
-
-/*
- * 	Configurable global rate limit.
- *
- *	ratelimit defines tokens/packet consumed for dst->rate_token bucket
- *	ratemask defines which icmp types are ratelimited by setting
- * 	it's bit position.
- *
- *	default:
- *	dest unreachable (3), source quench (4),
- *	time exceeded (11), parameter problem (12)
- */
-
-int sysctl_icmp_ratelimit __read_mostly = 1 * HZ;
-int sysctl_icmp_ratemask __read_mostly = 0x1818;
-int sysctl_icmp_errors_use_inbound_ifaddr __read_mostly;
-
 /*
  *	ICMP control array. This specifies what to do with each ICMP.
  */
@@ -229,14 +207,16 @@ static const struct icmp_control icmp_pointers[NR_ICMP_TYPES+1];
  *
  *	On SMP we have one ICMP socket per-cpu.
  */
-static DEFINE_PER_CPU(struct socket *, __icmp_socket) = NULL;
-#define icmp_socket	__get_cpu_var(__icmp_socket)
+static struct sock *icmp_sk(struct net *net)
+{
+	return net->ipv4.icmp_sk[smp_processor_id()];
+}
 
-static inline int icmp_xmit_lock(void)
+static inline int icmp_xmit_lock(struct sock *sk)
 {
 	local_bh_disable();
 
-	if (unlikely(!spin_trylock(&icmp_socket->sk->sk_lock.slock))) {
+	if (unlikely(!spin_trylock(&sk->sk_lock.slock))) {
 		/* This can happen if the output path signals a
 		 * dst_link_failure() for an outgoing ICMP packet.
 		 */
@@ -246,9 +226,9 @@ static inline int icmp_xmit_lock(void)
 	return 0;
 }
 
-static inline void icmp_xmit_unlock(void)
+static inline void icmp_xmit_unlock(struct sock *sk)
 {
-	spin_unlock_bh(&icmp_socket->sk->sk_lock.slock);
+	spin_unlock_bh(&sk->sk_lock.slock);
 }
 
 /*
@@ -291,7 +271,8 @@ int xrlim_allow(struct dst_entry *dst, int timeout)
 	return rc;
 }
 
-static inline int icmpv4_xrlim_allow(struct rtable *rt, int type, int code)
+static inline int icmpv4_xrlim_allow(struct net *net, struct rtable *rt,
+		int type, int code)
 {
 	struct dst_entry *dst = &rt->u.dst;
 	int rc = 1;
@@ -308,8 +289,8 @@ static inline int icmpv4_xrlim_allow(struct rtable *rt, int type, int code)
 		goto out;
 
 	/* Limit if icmp type is enabled in ratemask. */
-	if ((1 << type) & sysctl_icmp_ratemask)
-		rc = xrlim_allow(dst, sysctl_icmp_ratelimit);
+	if ((1 << type) & net->ipv4.sysctl_icmp_ratemask)
+		rc = xrlim_allow(dst, net->ipv4.sysctl_icmp_ratelimit);
 out:
 	return rc;
 }
@@ -346,19 +327,21 @@ static int icmp_glue_bits(void *from, char *to, int offset, int len, int odd,
 static void icmp_push_reply(struct icmp_bxm *icmp_param,
 			    struct ipcm_cookie *ipc, struct rtable *rt)
 {
+	struct sock *sk;
 	struct sk_buff *skb;
 
-	if (ip_append_data(icmp_socket->sk, icmp_glue_bits, icmp_param,
+	sk = icmp_sk(dev_net(rt->u.dst.dev));
+	if (ip_append_data(sk, icmp_glue_bits, icmp_param,
 			   icmp_param->data_len+icmp_param->head_len,
 			   icmp_param->head_len,
 			   ipc, rt, MSG_DONTWAIT) < 0)
-		ip_flush_pending_frames(icmp_socket->sk);
-	else if ((skb = skb_peek(&icmp_socket->sk->sk_write_queue)) != NULL) {
+		ip_flush_pending_frames(sk);
+	else if ((skb = skb_peek(&sk->sk_write_queue)) != NULL) {
 		struct icmphdr *icmph = icmp_hdr(skb);
 		__wsum csum = 0;
 		struct sk_buff *skb1;
 
-		skb_queue_walk(&icmp_socket->sk->sk_write_queue, skb1) {
+		skb_queue_walk(&sk->sk_write_queue, skb1) {
 			csum = csum_add(csum, skb1->csum);
 		}
 		csum = csum_partial_copy_nocheck((void *)&icmp_param->data,
@@ -366,7 +349,7 @@ static void icmp_push_reply(struct icmp_bxm *icmp_param,
 						 icmp_param->head_len, csum);
 		icmph->checksum = csum_fold(csum);
 		skb->ip_summed = CHECKSUM_NONE;
-		ip_push_pending_frames(icmp_socket->sk);
+		ip_push_pending_frames(sk);
 	}
 }
 
@@ -376,16 +359,17 @@ static void icmp_push_reply(struct icmp_bxm *icmp_param,
 
 static void icmp_reply(struct icmp_bxm *icmp_param, struct sk_buff *skb)
 {
-	struct sock *sk = icmp_socket->sk;
-	struct inet_sock *inet = inet_sk(sk);
 	struct ipcm_cookie ipc;
-	struct rtable *rt = (struct rtable *)skb->dst;
+	struct rtable *rt = skb->rtable;
+	struct net *net = dev_net(rt->u.dst.dev);
+	struct sock *sk = icmp_sk(net);
+	struct inet_sock *inet = inet_sk(sk);
 	__be32 daddr;
 
 	if (ip_options_echo(&icmp_param->replyopts, skb))
 		return;
 
-	if (icmp_xmit_lock())
+	if (icmp_xmit_lock(sk))
 		return;
 
 	icmp_param->data.icmph.checksum = 0;
@@ -405,15 +389,15 @@ static void icmp_reply(struct icmp_bxm *icmp_param, struct sk_buff *skb)
 						.tos = RT_TOS(ip_hdr(skb)->tos) } },
 				    .proto = IPPROTO_ICMP };
 		security_skb_classify_flow(skb, &fl);
-		if (ip_route_output_key(rt->u.dst.dev->nd_net, &rt, &fl))
+		if (ip_route_output_key(net, &rt, &fl))
 			goto out_unlock;
 	}
-	if (icmpv4_xrlim_allow(rt, icmp_param->data.icmph.type,
+	if (icmpv4_xrlim_allow(net, rt, icmp_param->data.icmph.type,
 			       icmp_param->data.icmph.code))
 		icmp_push_reply(icmp_param, &ipc, rt);
 	ip_rt_put(rt);
 out_unlock:
-	icmp_xmit_unlock();
+	icmp_xmit_unlock(sk);
 }
 
 
@@ -433,15 +417,17 @@ void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info)
 	struct iphdr *iph;
 	int room;
 	struct icmp_bxm icmp_param;
-	struct rtable *rt = (struct rtable *)skb_in->dst;
+	struct rtable *rt = skb_in->rtable;
 	struct ipcm_cookie ipc;
 	__be32 saddr;
 	u8  tos;
 	struct net *net;
+	struct sock *sk;
 
 	if (!rt)
 		goto out;
-	net = rt->u.dst.dev->nd_net;
+	net = dev_net(rt->u.dst.dev);
+	sk = icmp_sk(net);
 
 	/*
 	 *	Find the original header. It is expected to be valid, of course.
@@ -505,7 +491,7 @@ void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info)
 		}
 	}
 
-	if (icmp_xmit_lock())
+	if (icmp_xmit_lock(sk))
 		return;
 
 	/*
@@ -516,7 +502,8 @@ void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info)
 	if (!(rt->rt_flags & RTCF_LOCAL)) {
 		struct net_device *dev = NULL;
 
-		if (rt->fl.iif && sysctl_icmp_errors_use_inbound_ifaddr)
+		if (rt->fl.iif &&
+			net->ipv4.sysctl_icmp_errors_use_inbound_ifaddr)
 			dev = dev_get_by_index(net, rt->fl.iif);
 
 		if (dev) {
@@ -544,7 +531,7 @@ void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info)
 	icmp_param.data.icmph.checksum	 = 0;
 	icmp_param.skb	  = skb_in;
 	icmp_param.offset = skb_network_offset(skb_in);
-	inet_sk(icmp_socket->sk)->tos = tos;
+	inet_sk(sk)->tos = tos;
 	ipc.addr = iph->saddr;
 	ipc.opt = &icmp_param.replyopts;
 
@@ -609,7 +596,7 @@ void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info)
 					     RT_TOS(tos), rt2->u.dst.dev);
 
 			dst_release(&rt2->u.dst);
-			rt2 = (struct rtable *)skb_in->dst;
+			rt2 = skb_in->rtable;
 			skb_in->dst = odst;
 		}
 
@@ -634,7 +621,7 @@ relookup_failed:
 	}
 
 route_done:
-	if (!icmpv4_xrlim_allow(rt, type, code))
+	if (!icmpv4_xrlim_allow(net, rt, type, code))
 		goto ende;
 
 	/* RFC says return as much as we can without exceeding 576 bytes. */
@@ -654,7 +641,7 @@ route_done:
 ende:
 	ip_rt_put(rt);
 out_unlock:
-	icmp_xmit_unlock();
+	icmp_xmit_unlock(sk);
 out:;
 }
 
@@ -672,7 +659,7 @@ static void icmp_unreach(struct sk_buff *skb)
 	u32 info = 0;
 	struct net *net;
 
-	net = skb->dst->dev->nd_net;
+	net = dev_net(skb->dst->dev);
 
 	/*
 	 *	Incomplete header ?
@@ -698,7 +685,7 @@ static void icmp_unreach(struct sk_buff *skb)
 			break;
 		case ICMP_FRAG_NEEDED:
 			if (ipv4_config.no_pmtu_disc) {
-				LIMIT_NETDEBUG(KERN_INFO "ICMP: %u.%u.%u.%u: "
+				LIMIT_NETDEBUG(KERN_INFO "ICMP: " NIPQUAD_FMT ": "
 							 "fragmentation needed "
 							 "and DF set.\n",
 					       NIPQUAD(iph->daddr));
@@ -710,7 +697,7 @@ static void icmp_unreach(struct sk_buff *skb)
 			}
 			break;
 		case ICMP_SR_FAILED:
-			LIMIT_NETDEBUG(KERN_INFO "ICMP: %u.%u.%u.%u: Source "
+			LIMIT_NETDEBUG(KERN_INFO "ICMP: " NIPQUAD_FMT ": Source "
 						 "Route Failed.\n",
 				       NIPQUAD(iph->daddr));
 			break;
@@ -740,12 +727,12 @@ static void icmp_unreach(struct sk_buff *skb)
 	 *	get the other vendor to fix their kit.
 	 */
 
-	if (!sysctl_icmp_ignore_bogus_error_responses &&
+	if (!net->ipv4.sysctl_icmp_ignore_bogus_error_responses &&
 	    inet_addr_type(net, iph->daddr) == RTN_BROADCAST) {
 		if (net_ratelimit())
-			printk(KERN_WARNING "%u.%u.%u.%u sent an invalid ICMP "
+			printk(KERN_WARNING NIPQUAD_FMT " sent an invalid ICMP "
 					    "type %u, code %u "
-					    "error to a broadcast: %u.%u.%u.%u on %s\n",
+					    "error to a broadcast: " NIPQUAD_FMT " on %s\n",
 			       NIPQUAD(ip_hdr(skb)->saddr),
 			       icmph->type, icmph->code,
 			       NIPQUAD(iph->daddr),
@@ -835,7 +822,10 @@ out_err:
 
 static void icmp_echo(struct sk_buff *skb)
 {
-	if (!sysctl_icmp_echo_ignore_all) {
+	struct net *net;
+
+	net = dev_net(skb->dst->dev);
+	if (!net->ipv4.sysctl_icmp_echo_ignore_all) {
 		struct icmp_bxm icmp_param;
 
 		icmp_param.data.icmph	   = *icmp_hdr(skb);
@@ -938,7 +928,7 @@ static void icmp_address(struct sk_buff *skb)
 
 static void icmp_address_reply(struct sk_buff *skb)
 {
-	struct rtable *rt = (struct rtable *)skb->dst;
+	struct rtable *rt = skb->rtable;
 	struct net_device *dev = skb->dev;
 	struct in_device *in_dev;
 	struct in_ifaddr *ifa;
@@ -963,8 +953,8 @@ static void icmp_address_reply(struct sk_buff *skb)
 				break;
 		}
 		if (!ifa && net_ratelimit()) {
-			printk(KERN_INFO "Wrong address mask %u.%u.%u.%u from "
-					 "%s/%u.%u.%u.%u\n",
+			printk(KERN_INFO "Wrong address mask " NIPQUAD_FMT " from "
+					 "%s/" NIPQUAD_FMT "\n",
 			       NIPQUAD(*mp), dev->name, NIPQUAD(rt->rt_src));
 		}
 	}
@@ -983,7 +973,7 @@ static void icmp_discard(struct sk_buff *skb)
 int icmp_rcv(struct sk_buff *skb)
 {
 	struct icmphdr *icmph;
-	struct rtable *rt = (struct rtable *)skb->dst;
+	struct rtable *rt = skb->rtable;
 
 	if (!xfrm4_policy_check(NULL, XFRM_POLICY_IN, skb)) {
 		int nh;
@@ -1038,6 +1028,9 @@ int icmp_rcv(struct sk_buff *skb)
 	 */
 
 	if (rt->rt_flags & (RTCF_BROADCAST | RTCF_MULTICAST)) {
+		struct net *net;
+
+		net = dev_net(rt->u.dst.dev);
 		/*
 		 *	RFC 1122: 3.2.2.6 An ICMP_ECHO to broadcast MAY be
 		 *	  silently ignored (we let user decide with a sysctl).
@@ -1046,7 +1039,7 @@ int icmp_rcv(struct sk_buff *skb)
 		 */
 		if ((icmph->type == ICMP_ECHO ||
 		     icmph->type == ICMP_TIMESTAMP) &&
-		    sysctl_icmp_echo_ignore_broadcasts) {
+		    net->ipv4.sysctl_icmp_echo_ignore_broadcasts) {
 			goto error;
 		}
 		if (icmph->type != ICMP_ECHO &&
@@ -1141,38 +1134,84 @@ static const struct icmp_control icmp_pointers[NR_ICMP_TYPES + 1] = {
 	},
 };
 
-void __init icmp_init(struct net_proto_family *ops)
+static void __net_exit icmp_sk_exit(struct net *net)
 {
-	struct inet_sock *inet;
 	int i;
 
-	for_each_possible_cpu(i) {
-		int err;
+	for_each_possible_cpu(i)
+		inet_ctl_sock_destroy(net->ipv4.icmp_sk[i]);
+	kfree(net->ipv4.icmp_sk);
+	net->ipv4.icmp_sk = NULL;
+}
+
+int __net_init icmp_sk_init(struct net *net)
+{
+	int i, err;
 
-		err = sock_create_kern(PF_INET, SOCK_RAW, IPPROTO_ICMP,
-				       &per_cpu(__icmp_socket, i));
+	net->ipv4.icmp_sk =
+		kzalloc(nr_cpu_ids * sizeof(struct sock *), GFP_KERNEL);
+	if (net->ipv4.icmp_sk == NULL)
+		return -ENOMEM;
 
+	for_each_possible_cpu(i) {
+		struct sock *sk;
+
+		err = inet_ctl_sock_create(&sk, PF_INET,
+					   SOCK_RAW, IPPROTO_ICMP, net);
 		if (err < 0)
-			panic("Failed to create the ICMP control socket.\n");
+			goto fail;
 
-		per_cpu(__icmp_socket, i)->sk->sk_allocation = GFP_ATOMIC;
+		net->ipv4.icmp_sk[i] = sk;
 
 		/* Enough space for 2 64K ICMP packets, including
 		 * sk_buff struct overhead.
 		 */
-		per_cpu(__icmp_socket, i)->sk->sk_sndbuf =
+		sk->sk_sndbuf =
 			(2 * ((64 * 1024) + sizeof(struct sk_buff)));
 
-		inet = inet_sk(per_cpu(__icmp_socket, i)->sk);
-		inet->uc_ttl = -1;
-		inet->pmtudisc = IP_PMTUDISC_DONT;
-
-		/* Unhash it so that IP input processing does not even
-		 * see it, we do not wish this socket to see incoming
-		 * packets.
-		 */
-		per_cpu(__icmp_socket, i)->sk->sk_prot->unhash(per_cpu(__icmp_socket, i)->sk);
+		inet_sk(sk)->pmtudisc = IP_PMTUDISC_DONT;
 	}
+
+	/* Control parameters for ECHO replies. */
+	net->ipv4.sysctl_icmp_echo_ignore_all = 0;
+	net->ipv4.sysctl_icmp_echo_ignore_broadcasts = 1;
+
+	/* Control parameter - ignore bogus broadcast responses? */
+	net->ipv4.sysctl_icmp_ignore_bogus_error_responses = 1;
+
+	/*
+	 * 	Configurable global rate limit.
+	 *
+	 *	ratelimit defines tokens/packet consumed for dst->rate_token
+	 *	bucket ratemask defines which icmp types are ratelimited by
+	 *	setting	it's bit position.
+	 *
+	 *	default:
+	 *	dest unreachable (3), source quench (4),
+	 *	time exceeded (11), parameter problem (12)
+	 */
+
+	net->ipv4.sysctl_icmp_ratelimit = 1 * HZ;
+	net->ipv4.sysctl_icmp_ratemask = 0x1818;
+	net->ipv4.sysctl_icmp_errors_use_inbound_ifaddr = 0;
+
+	return 0;
+
+fail:
+	for_each_possible_cpu(i)
+		inet_ctl_sock_destroy(net->ipv4.icmp_sk[i]);
+	kfree(net->ipv4.icmp_sk);
+	return err;
+}
+
+static struct pernet_operations __net_initdata icmp_sk_ops = {
+       .init = icmp_sk_init,
+       .exit = icmp_sk_exit,
+};
+
+int __init icmp_init(void)
+{
+	return register_pernet_device(&icmp_sk_ops);
 }
 
 EXPORT_SYMBOL(icmp_err_convert);
diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index 732cd07e6071..6250f4239b61 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -130,12 +130,12 @@
  */
 
 #define IGMP_V1_SEEN(in_dev) \
-	(IPV4_DEVCONF_ALL(in_dev->dev->nd_net, FORCE_IGMP_VERSION) == 1 || \
+	(IPV4_DEVCONF_ALL(dev_net(in_dev->dev), FORCE_IGMP_VERSION) == 1 || \
 	 IN_DEV_CONF_GET((in_dev), FORCE_IGMP_VERSION) == 1 || \
 	 ((in_dev)->mr_v1_seen && \
 	  time_before(jiffies, (in_dev)->mr_v1_seen)))
 #define IGMP_V2_SEEN(in_dev) \
-	(IPV4_DEVCONF_ALL(in_dev->dev->nd_net, FORCE_IGMP_VERSION) == 2 || \
+	(IPV4_DEVCONF_ALL(dev_net(in_dev->dev), FORCE_IGMP_VERSION) == 2 || \
 	 IN_DEV_CONF_GET((in_dev), FORCE_IGMP_VERSION) == 2 || \
 	 ((in_dev)->mr_v2_seen && \
 	  time_before(jiffies, (in_dev)->mr_v2_seen)))
@@ -948,7 +948,7 @@ int igmp_rcv(struct sk_buff *skb)
 	case IGMPV2_HOST_MEMBERSHIP_REPORT:
 	case IGMPV3_HOST_MEMBERSHIP_REPORT:
 		/* Is it our report looped back? */
-		if (((struct rtable*)skb->dst)->fl.iif == 0)
+		if (skb->rtable->fl.iif == 0)
 			break;
 		/* don't rely on MC router hearing unicast reports */
 		if (skb->pkt_type == PACKET_MULTICAST ||
@@ -1198,6 +1198,9 @@ void ip_mc_inc_group(struct in_device *in_dev, __be32 addr)
 
 	ASSERT_RTNL();
 
+	if (dev_net(in_dev->dev) != &init_net)
+		return;
+
 	for (im=in_dev->mc_list; im; im=im->next) {
 		if (im->multiaddr == addr) {
 			im->users++;
@@ -1277,6 +1280,9 @@ void ip_mc_dec_group(struct in_device *in_dev, __be32 addr)
 
 	ASSERT_RTNL();
 
+	if (dev_net(in_dev->dev) != &init_net)
+		return;
+
 	for (ip=&in_dev->mc_list; (i=*ip)!=NULL; ip=&i->next) {
 		if (i->multiaddr==addr) {
 			if (--i->users == 0) {
@@ -1304,6 +1310,9 @@ void ip_mc_down(struct in_device *in_dev)
 
 	ASSERT_RTNL();
 
+	if (dev_net(in_dev->dev) != &init_net)
+		return;
+
 	for (i=in_dev->mc_list; i; i=i->next)
 		igmp_group_dropped(i);
 
@@ -1324,6 +1333,9 @@ void ip_mc_init_dev(struct in_device *in_dev)
 {
 	ASSERT_RTNL();
 
+	if (dev_net(in_dev->dev) != &init_net)
+		return;
+
 	in_dev->mc_tomb = NULL;
 #ifdef CONFIG_IP_MULTICAST
 	in_dev->mr_gq_running = 0;
@@ -1347,6 +1359,9 @@ void ip_mc_up(struct in_device *in_dev)
 
 	ASSERT_RTNL();
 
+	if (dev_net(in_dev->dev) != &init_net)
+		return;
+
 	ip_mc_inc_group(in_dev, IGMP_ALL_HOSTS);
 
 	for (i=in_dev->mc_list; i; i=i->next)
@@ -1363,6 +1378,9 @@ void ip_mc_destroy_dev(struct in_device *in_dev)
 
 	ASSERT_RTNL();
 
+	if (dev_net(in_dev->dev) != &init_net)
+		return;
+
 	/* Deactivate timers */
 	ip_mc_down(in_dev);
 
@@ -1744,6 +1762,9 @@ int ip_mc_join_group(struct sock *sk , struct ip_mreqn *imr)
 	if (!ipv4_is_multicast(addr))
 		return -EINVAL;
 
+	if (sock_net(sk) != &init_net)
+		return -EPROTONOSUPPORT;
+
 	rtnl_lock();
 
 	in_dev = ip_mc_find_dev(imr);
@@ -1812,6 +1833,9 @@ int ip_mc_leave_group(struct sock *sk, struct ip_mreqn *imr)
 	u32 ifindex;
 	int ret = -EADDRNOTAVAIL;
 
+	if (sock_net(sk) != &init_net)
+		return -EPROTONOSUPPORT;
+
 	rtnl_lock();
 	in_dev = ip_mc_find_dev(imr);
 	ifindex = imr->imr_ifindex;
@@ -1857,6 +1881,9 @@ int ip_mc_source(int add, int omode, struct sock *sk, struct
 	if (!ipv4_is_multicast(addr))
 		return -EINVAL;
 
+	if (sock_net(sk) != &init_net)
+		return -EPROTONOSUPPORT;
+
 	rtnl_lock();
 
 	imr.imr_multiaddr.s_addr = mreqs->imr_multiaddr;
@@ -1990,6 +2017,9 @@ int ip_mc_msfilter(struct sock *sk, struct ip_msfilter *msf, int ifindex)
 	    msf->imsf_fmode != MCAST_EXCLUDE)
 		return -EINVAL;
 
+	if (sock_net(sk) != &init_net)
+		return -EPROTONOSUPPORT;
+
 	rtnl_lock();
 
 	imr.imr_multiaddr.s_addr = msf->imsf_multiaddr;
@@ -2070,6 +2100,9 @@ int ip_mc_msfget(struct sock *sk, struct ip_msfilter *msf,
 	if (!ipv4_is_multicast(addr))
 		return -EINVAL;
 
+	if (sock_net(sk) != &init_net)
+		return -EPROTONOSUPPORT;
+
 	rtnl_lock();
 
 	imr.imr_multiaddr.s_addr = msf->imsf_multiaddr;
@@ -2132,6 +2165,9 @@ int ip_mc_gsfget(struct sock *sk, struct group_filter *gsf,
 	if (!ipv4_is_multicast(addr))
 		return -EINVAL;
 
+	if (sock_net(sk) != &init_net)
+		return -EPROTONOSUPPORT;
+
 	rtnl_lock();
 
 	err = -EADDRNOTAVAIL;
@@ -2216,6 +2252,9 @@ void ip_mc_drop_socket(struct sock *sk)
 	if (inet->mc_list == NULL)
 		return;
 
+	if (sock_net(sk) != &init_net)
+		return;
+
 	rtnl_lock();
 	while ((iml = inet->mc_list) != NULL) {
 		struct in_device *in_dev;
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index b189278c7bc1..828ea211ff21 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -55,6 +55,13 @@ int inet_csk_bind_conflict(const struct sock *sk,
 	struct hlist_node *node;
 	int reuse = sk->sk_reuse;
 
+	/*
+	 * Unlike other sk lookup places we do not check
+	 * for sk_net here, since _all_ the socks listed
+	 * in tb->owners list belong to the same net - the
+	 * one this bucket belongs to.
+	 */
+
 	sk_for_each_bound(sk2, node, &tb->owners) {
 		if (sk != sk2 &&
 		    !inet_v6_ipv6only(sk2) &&
@@ -80,12 +87,12 @@ EXPORT_SYMBOL_GPL(inet_csk_bind_conflict);
  */
 int inet_csk_get_port(struct sock *sk, unsigned short snum)
 {
-	struct inet_hashinfo *hashinfo = sk->sk_prot->hashinfo;
+	struct inet_hashinfo *hashinfo = sk->sk_prot->h.hashinfo;
 	struct inet_bind_hashbucket *head;
 	struct hlist_node *node;
 	struct inet_bind_bucket *tb;
 	int ret;
-	struct net *net = sk->sk_net;
+	struct net *net = sock_net(sk);
 
 	local_bh_disable();
 	if (!snum) {
@@ -133,8 +140,6 @@ int inet_csk_get_port(struct sock *sk, unsigned short snum)
 	goto tb_not_found;
 tb_found:
 	if (!hlist_empty(&tb->owners)) {
-		if (sk->sk_reuse > 1)
-			goto success;
 		if (tb->fastreuse > 0 &&
 		    sk->sk_reuse && sk->sk_state != TCP_LISTEN) {
 			goto success;
@@ -333,7 +338,7 @@ struct dst_entry* inet_csk_route_req(struct sock *sk,
 					 .dport = ireq->rmt_port } } };
 
 	security_req_classify_flow(req, &fl);
-	if (ip_route_output_flow(&init_net, &rt, &fl, sk, 0)) {
+	if (ip_route_output_flow(sock_net(sk), &rt, &fl, sk, 0)) {
 		IP_INC_STATS_BH(IPSTATS_MIB_OUTNOROUTES);
 		return NULL;
 	}
@@ -414,8 +419,7 @@ void inet_csk_reqsk_queue_prune(struct sock *parent,
 	struct inet_connection_sock *icsk = inet_csk(parent);
 	struct request_sock_queue *queue = &icsk->icsk_accept_queue;
 	struct listen_sock *lopt = queue->listen_opt;
-	int max_retries = icsk->icsk_syn_retries ? : sysctl_tcp_synack_retries;
-	int thresh = max_retries;
+	int thresh = icsk->icsk_syn_retries ? : sysctl_tcp_synack_retries;
 	unsigned long now = jiffies;
 	struct request_sock **reqp, *req;
 	int i, budget;
@@ -451,9 +455,6 @@ void inet_csk_reqsk_queue_prune(struct sock *parent,
 		}
 	}
 
-	if (queue->rskq_defer_accept)
-		max_retries = queue->rskq_defer_accept;
-
 	budget = 2 * (lopt->nr_table_entries / (timeout / interval));
 	i = lopt->clock_hand;
 
@@ -461,9 +462,8 @@ void inet_csk_reqsk_queue_prune(struct sock *parent,
 		reqp=&lopt->syn_table[i];
 		while ((req = *reqp) != NULL) {
 			if (time_after_eq(now, req->expires)) {
-				if ((req->retrans < thresh ||
-				     (inet_rsk(req)->acked && req->retrans < max_retries))
-				    && !req->rsk_ops->rtx_syn_ack(parent, req, NULL)) {
+				if (req->retrans < thresh &&
+				    !req->rsk_ops->rtx_syn_ack(parent, req)) {
 					unsigned long timeo;
 
 					if (req->retrans++ == 0)
@@ -656,25 +656,6 @@ void inet_csk_addr2sockaddr(struct sock *sk, struct sockaddr *uaddr)
 
 EXPORT_SYMBOL_GPL(inet_csk_addr2sockaddr);
 
-int inet_csk_ctl_sock_create(struct socket **sock, unsigned short family,
-			     unsigned short type, unsigned char protocol)
-{
-	int rc = sock_create_kern(family, type, protocol, sock);
-
-	if (rc == 0) {
-		(*sock)->sk->sk_allocation = GFP_ATOMIC;
-		inet_sk((*sock)->sk)->uc_ttl = -1;
-		/*
-		 * Unhash it so that IP input processing does not even see it,
-		 * we do not wish this socket to see incoming packets.
-		 */
-		(*sock)->sk->sk_prot->unhash((*sock)->sk);
-	}
-	return rc;
-}
-
-EXPORT_SYMBOL_GPL(inet_csk_ctl_sock_create);
-
 #ifdef CONFIG_COMPAT
 int inet_csk_compat_getsockopt(struct sock *sk, int level, int optname,
 			       char __user *optval, int __user *optlen)
diff --git a/net/ipv4/inet_fragment.c b/net/ipv4/inet_fragment.c
index a0a3c78cb5e0..4ed429bd5951 100644
--- a/net/ipv4/inet_fragment.c
+++ b/net/ipv4/inet_fragment.c
@@ -107,10 +107,10 @@ void inet_frag_kill(struct inet_frag_queue *fq, struct inet_frags *f)
 	if (del_timer(&fq->timer))
 		atomic_dec(&fq->refcnt);
 
-	if (!(fq->last_in & COMPLETE)) {
+	if (!(fq->last_in & INET_FRAG_COMPLETE)) {
 		fq_unlink(fq, f);
 		atomic_dec(&fq->refcnt);
-		fq->last_in |= COMPLETE;
+		fq->last_in |= INET_FRAG_COMPLETE;
 	}
 }
 
@@ -134,7 +134,7 @@ void inet_frag_destroy(struct inet_frag_queue *q, struct inet_frags *f,
 	struct sk_buff *fp;
 	struct netns_frags *nf;
 
-	BUG_TRAP(q->last_in & COMPLETE);
+	BUG_TRAP(q->last_in & INET_FRAG_COMPLETE);
 	BUG_TRAP(del_timer(&q->timer) == 0);
 
 	/* Release all fragment data. */
@@ -177,7 +177,7 @@ int inet_frag_evictor(struct netns_frags *nf, struct inet_frags *f)
 		read_unlock(&f->lock);
 
 		spin_lock(&q->lock);
-		if (!(q->last_in & COMPLETE))
+		if (!(q->last_in & INET_FRAG_COMPLETE))
 			inet_frag_kill(q, f);
 		spin_unlock(&q->lock);
 
@@ -209,7 +209,7 @@ static struct inet_frag_queue *inet_frag_intern(struct netns_frags *nf,
 		if (qp->net == nf && f->match(qp, arg)) {
 			atomic_inc(&qp->refcnt);
 			write_unlock(&f->lock);
-			qp_in->last_in |= COMPLETE;
+			qp_in->last_in |= INET_FRAG_COMPLETE;
 			inet_frag_put(qp_in, f);
 			return qp;
 		}
diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c
index 1aba606f6bbb..2023d37b2708 100644
--- a/net/ipv4/inet_hashtables.c
+++ b/net/ipv4/inet_hashtables.c
@@ -35,7 +35,7 @@ struct inet_bind_bucket *inet_bind_bucket_create(struct kmem_cache *cachep,
 	struct inet_bind_bucket *tb = kmem_cache_alloc(cachep, GFP_ATOMIC);
 
 	if (tb != NULL) {
-		tb->ib_net       = net;
+		tb->ib_net       = hold_net(net);
 		tb->port      = snum;
 		tb->fastreuse = 0;
 		INIT_HLIST_HEAD(&tb->owners);
@@ -51,6 +51,7 @@ void inet_bind_bucket_destroy(struct kmem_cache *cachep, struct inet_bind_bucket
 {
 	if (hlist_empty(&tb->owners)) {
 		__hlist_del(&tb->node);
+		release_net(tb->ib_net);
 		kmem_cache_free(cachep, tb);
 	}
 }
@@ -68,7 +69,7 @@ void inet_bind_hash(struct sock *sk, struct inet_bind_bucket *tb,
  */
 static void __inet_put_port(struct sock *sk)
 {
-	struct inet_hashinfo *hashinfo = sk->sk_prot->hashinfo;
+	struct inet_hashinfo *hashinfo = sk->sk_prot->h.hashinfo;
 	const int bhash = inet_bhashfn(inet_sk(sk)->num, hashinfo->bhash_size);
 	struct inet_bind_hashbucket *head = &hashinfo->bhash[bhash];
 	struct inet_bind_bucket *tb;
@@ -91,6 +92,22 @@ void inet_put_port(struct sock *sk)
 
 EXPORT_SYMBOL(inet_put_port);
 
+void __inet_inherit_port(struct sock *sk, struct sock *child)
+{
+	struct inet_hashinfo *table = sk->sk_prot->h.hashinfo;
+	const int bhash = inet_bhashfn(inet_sk(child)->num, table->bhash_size);
+	struct inet_bind_hashbucket *head = &table->bhash[bhash];
+	struct inet_bind_bucket *tb;
+
+	spin_lock(&head->lock);
+	tb = inet_csk(sk)->icsk_bind_hash;
+	sk_add_bind_node(child, &tb->owners);
+	inet_csk(child)->icsk_bind_hash = tb;
+	spin_unlock(&head->lock);
+}
+
+EXPORT_SYMBOL_GPL(__inet_inherit_port);
+
 /*
  * This lock without WQ_FLAG_EXCLUSIVE is good on UP and it can be very bad on SMP.
  * Look, when several writers sleep and reader wakes them up, all but one
@@ -139,7 +156,7 @@ static struct sock *inet_lookup_listener_slow(struct net *net,
 	sk_for_each(sk, node, head) {
 		const struct inet_sock *inet = inet_sk(sk);
 
-		if (sk->sk_net == net && inet->num == hnum &&
+		if (net_eq(sock_net(sk), net) && inet->num == hnum &&
 				!ipv6_only_sock(sk)) {
 			const __be32 rcv_saddr = inet->rcv_saddr;
 			int score = sk->sk_family == PF_INET ? 1 : 0;
@@ -182,7 +199,7 @@ struct sock *__inet_lookup_listener(struct net *net,
 		if (inet->num == hnum && !sk->sk_node.next &&
 		    (!inet->rcv_saddr || inet->rcv_saddr == daddr) &&
 		    (sk->sk_family == PF_INET || !ipv6_only_sock(sk)) &&
-		    !sk->sk_bound_dev_if && sk->sk_net == net)
+		    !sk->sk_bound_dev_if && net_eq(sock_net(sk), net))
 			goto sherry_cache;
 		sk = inet_lookup_listener_slow(net, head, daddr, hnum, dif);
 	}
@@ -254,7 +271,7 @@ static int __inet_check_established(struct inet_timewait_death_row *death_row,
 	struct sock *sk2;
 	const struct hlist_node *node;
 	struct inet_timewait_sock *tw;
-	struct net *net = sk->sk_net;
+	struct net *net = sock_net(sk);
 
 	prefetch(head->chain.first);
 	write_lock(lock);
@@ -288,7 +305,7 @@ unique:
 	sk->sk_hash = hash;
 	BUG_TRAP(sk_unhashed(sk));
 	__sk_add_node(sk, &head->chain);
-	sock_prot_inuse_add(sk->sk_prot, 1);
+	sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1);
 	write_unlock(lock);
 
 	if (twp) {
@@ -318,7 +335,7 @@ static inline u32 inet_sk_port_offset(const struct sock *sk)
 
 void __inet_hash_nolisten(struct sock *sk)
 {
-	struct inet_hashinfo *hashinfo = sk->sk_prot->hashinfo;
+	struct inet_hashinfo *hashinfo = sk->sk_prot->h.hashinfo;
 	struct hlist_head *list;
 	rwlock_t *lock;
 	struct inet_ehash_bucket *head;
@@ -332,14 +349,14 @@ void __inet_hash_nolisten(struct sock *sk)
 
 	write_lock(lock);
 	__sk_add_node(sk, list);
-	sock_prot_inuse_add(sk->sk_prot, 1);
+	sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1);
 	write_unlock(lock);
 }
 EXPORT_SYMBOL_GPL(__inet_hash_nolisten);
 
 static void __inet_hash(struct sock *sk)
 {
-	struct inet_hashinfo *hashinfo = sk->sk_prot->hashinfo;
+	struct inet_hashinfo *hashinfo = sk->sk_prot->h.hashinfo;
 	struct hlist_head *list;
 	rwlock_t *lock;
 
@@ -354,7 +371,7 @@ static void __inet_hash(struct sock *sk)
 
 	inet_listen_wlock(hashinfo);
 	__sk_add_node(sk, list);
-	sock_prot_inuse_add(sk->sk_prot, 1);
+	sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1);
 	write_unlock(lock);
 	wake_up(&hashinfo->lhash_wait);
 }
@@ -372,7 +389,7 @@ EXPORT_SYMBOL_GPL(inet_hash);
 void inet_unhash(struct sock *sk)
 {
 	rwlock_t *lock;
-	struct inet_hashinfo *hashinfo = sk->sk_prot->hashinfo;
+	struct inet_hashinfo *hashinfo = sk->sk_prot->h.hashinfo;
 
 	if (sk_unhashed(sk))
 		goto out;
@@ -387,7 +404,7 @@ void inet_unhash(struct sock *sk)
 	}
 
 	if (__sk_del_node_init(sk))
-		sock_prot_inuse_add(sk->sk_prot, -1);
+		sock_prot_inuse_add(sock_net(sk), sk->sk_prot, -1);
 	write_unlock_bh(lock);
 out:
 	if (sk->sk_state == TCP_LISTEN)
@@ -406,7 +423,7 @@ int __inet_hash_connect(struct inet_timewait_death_row *death_row,
 	struct inet_bind_hashbucket *head;
 	struct inet_bind_bucket *tb;
 	int ret;
-	struct net *net = sk->sk_net;
+	struct net *net = sock_net(sk);
 
 	if (!snum) {
 		int i, remaining, low, high, port;
diff --git a/net/ipv4/inet_timewait_sock.c b/net/ipv4/inet_timewait_sock.c
index 717c411a5c6b..ce16e9ac24c1 100644
--- a/net/ipv4/inet_timewait_sock.c
+++ b/net/ipv4/inet_timewait_sock.c
@@ -57,6 +57,7 @@ void inet_twsk_put(struct inet_timewait_sock *tw)
 		printk(KERN_DEBUG "%s timewait_sock %p released\n",
 		       tw->tw_prot->name, tw);
 #endif
+		release_net(twsk_net(tw));
 		kmem_cache_free(tw->tw_prot->twsk_prot->twsk_slab, tw);
 		module_put(owner);
 	}
@@ -91,7 +92,7 @@ void __inet_twsk_hashdance(struct inet_timewait_sock *tw, struct sock *sk,
 
 	/* Step 2: Remove SK from established hash. */
 	if (__sk_del_node_init(sk))
-		sock_prot_inuse_add(sk->sk_prot, -1);
+		sock_prot_inuse_add(sock_net(sk), sk->sk_prot, -1);
 
 	/* Step 3: Hash TW into TIMEWAIT chain. */
 	inet_twsk_add_node(tw, &ehead->twchain);
@@ -124,7 +125,7 @@ struct inet_timewait_sock *inet_twsk_alloc(const struct sock *sk, const int stat
 		tw->tw_hash	    = sk->sk_hash;
 		tw->tw_ipv6only	    = 0;
 		tw->tw_prot	    = sk->sk_prot_creator;
-		tw->tw_net          = sk->sk_net;
+		twsk_net_set(tw, hold_net(sock_net(sk)));
 		atomic_set(&tw->tw_refcnt, 1);
 		inet_twsk_dead_node_init(tw);
 		__module_get(tw->tw_prot->owner);
diff --git a/net/ipv4/ip_forward.c b/net/ipv4/ip_forward.c
index a4506c8cfef0..4813c39b438b 100644
--- a/net/ipv4/ip_forward.c
+++ b/net/ipv4/ip_forward.c
@@ -80,7 +80,7 @@ int ip_forward(struct sk_buff *skb)
 	if (!xfrm4_route_forward(skb))
 		goto drop;
 
-	rt = (struct rtable*)skb->dst;
+	rt = skb->rtable;
 
 	if (opt->is_strictroute && rt->rt_dst != rt->rt_gateway)
 		goto sr_failed;
diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c
index 3b2e5adca838..cd6ce6ac6358 100644
--- a/net/ipv4/ip_fragment.c
+++ b/net/ipv4/ip_fragment.c
@@ -194,7 +194,7 @@ static void ip_expire(unsigned long arg)
 
 	spin_lock(&qp->q.lock);
 
-	if (qp->q.last_in & COMPLETE)
+	if (qp->q.last_in & INET_FRAG_COMPLETE)
 		goto out;
 
 	ipq_kill(qp);
@@ -202,10 +202,13 @@ static void ip_expire(unsigned long arg)
 	IP_INC_STATS_BH(IPSTATS_MIB_REASMTIMEOUT);
 	IP_INC_STATS_BH(IPSTATS_MIB_REASMFAILS);
 
-	if ((qp->q.last_in&FIRST_IN) && qp->q.fragments != NULL) {
+	if ((qp->q.last_in & INET_FRAG_FIRST_IN) && qp->q.fragments != NULL) {
 		struct sk_buff *head = qp->q.fragments;
+		struct net *net;
+
+		net = container_of(qp->q.net, struct net, ipv4.frags);
 		/* Send an ICMP "Fragment Reassembly Timeout" message. */
-		if ((head->dev = dev_get_by_index(&init_net, qp->iif)) != NULL) {
+		if ((head->dev = dev_get_by_index(net, qp->iif)) != NULL) {
 			icmp_send(head, ICMP_TIME_EXCEEDED, ICMP_EXC_FRAGTIME, 0);
 			dev_put(head->dev);
 		}
@@ -298,7 +301,7 @@ static int ip_frag_queue(struct ipq *qp, struct sk_buff *skb)
 	int ihl, end;
 	int err = -ENOENT;
 
-	if (qp->q.last_in & COMPLETE)
+	if (qp->q.last_in & INET_FRAG_COMPLETE)
 		goto err;
 
 	if (!(IPCB(skb)->flags & IPSKB_FRAG_COMPLETE) &&
@@ -324,9 +327,9 @@ static int ip_frag_queue(struct ipq *qp, struct sk_buff *skb)
 		 * or have different end, the segment is corrrupted.
 		 */
 		if (end < qp->q.len ||
-		    ((qp->q.last_in & LAST_IN) && end != qp->q.len))
+		    ((qp->q.last_in & INET_FRAG_LAST_IN) && end != qp->q.len))
 			goto err;
-		qp->q.last_in |= LAST_IN;
+		qp->q.last_in |= INET_FRAG_LAST_IN;
 		qp->q.len = end;
 	} else {
 		if (end&7) {
@@ -336,7 +339,7 @@ static int ip_frag_queue(struct ipq *qp, struct sk_buff *skb)
 		}
 		if (end > qp->q.len) {
 			/* Some bits beyond end -> corruption. */
-			if (qp->q.last_in & LAST_IN)
+			if (qp->q.last_in & INET_FRAG_LAST_IN)
 				goto err;
 			qp->q.len = end;
 		}
@@ -435,9 +438,10 @@ static int ip_frag_queue(struct ipq *qp, struct sk_buff *skb)
 	qp->q.meat += skb->len;
 	atomic_add(skb->truesize, &qp->q.net->mem);
 	if (offset == 0)
-		qp->q.last_in |= FIRST_IN;
+		qp->q.last_in |= INET_FRAG_FIRST_IN;
 
-	if (qp->q.last_in == (FIRST_IN | LAST_IN) && qp->q.meat == qp->q.len)
+	if (qp->q.last_in == (INET_FRAG_FIRST_IN | INET_FRAG_LAST_IN) &&
+	    qp->q.meat == qp->q.len)
 		return ip_frag_reasm(qp, prev, dev);
 
 	write_lock(&ip4_frags.lock);
@@ -553,7 +557,7 @@ out_nomem:
 out_oversize:
 	if (net_ratelimit())
 		printk(KERN_INFO
-			"Oversized IP packet from %d.%d.%d.%d.\n",
+			"Oversized IP packet from " NIPQUAD_FMT ".\n",
 			NIPQUAD(qp->saddr));
 out_fail:
 	IP_INC_STATS_BH(IPSTATS_MIB_REASMFAILS);
@@ -568,7 +572,7 @@ int ip_defrag(struct sk_buff *skb, u32 user)
 
 	IP_INC_STATS_BH(IPSTATS_MIB_REASMREQDS);
 
-	net = skb->dev ? skb->dev->nd_net : skb->dst->dev->nd_net;
+	net = skb->dev ? dev_net(skb->dev) : dev_net(skb->dst->dev);
 	/* Start by cleaning up the memory. */
 	if (atomic_read(&net->ipv4.frags.mem) > net->ipv4.frags.high_thresh)
 		ip_evictor(net);
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index e7821ba7a9a0..2ada033406de 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -39,6 +39,8 @@
 #include <net/dsfield.h>
 #include <net/inet_ecn.h>
 #include <net/xfrm.h>
+#include <net/net_namespace.h>
+#include <net/netns/generic.h>
 
 #ifdef CONFIG_IPV6
 #include <net/ipv6.h>
@@ -122,7 +124,14 @@ static void ipgre_tunnel_setup(struct net_device *dev);
 
 static int ipgre_fb_tunnel_init(struct net_device *dev);
 
-static struct net_device *ipgre_fb_tunnel_dev;
+#define HASH_SIZE  16
+
+static int ipgre_net_id;
+struct ipgre_net {
+	struct ip_tunnel *tunnels[4][HASH_SIZE];
+
+	struct net_device *fb_tunnel_dev;
+};
 
 /* Tunnel hash table */
 
@@ -142,39 +151,38 @@ static struct net_device *ipgre_fb_tunnel_dev;
    will match fallback tunnel.
  */
 
-#define HASH_SIZE  16
 #define HASH(addr) (((__force u32)addr^((__force u32)addr>>4))&0xF)
 
-static struct ip_tunnel *tunnels[4][HASH_SIZE];
-
-#define tunnels_r_l	(tunnels[3])
-#define tunnels_r	(tunnels[2])
-#define tunnels_l	(tunnels[1])
-#define tunnels_wc	(tunnels[0])
+#define tunnels_r_l	tunnels[3]
+#define tunnels_r	tunnels[2]
+#define tunnels_l	tunnels[1]
+#define tunnels_wc	tunnels[0]
 
 static DEFINE_RWLOCK(ipgre_lock);
 
 /* Given src, dst and key, find appropriate for input tunnel. */
 
-static struct ip_tunnel * ipgre_tunnel_lookup(__be32 remote, __be32 local, __be32 key)
+static struct ip_tunnel * ipgre_tunnel_lookup(struct net *net,
+		__be32 remote, __be32 local, __be32 key)
 {
 	unsigned h0 = HASH(remote);
 	unsigned h1 = HASH(key);
 	struct ip_tunnel *t;
+	struct ipgre_net *ign = net_generic(net, ipgre_net_id);
 
-	for (t = tunnels_r_l[h0^h1]; t; t = t->next) {
+	for (t = ign->tunnels_r_l[h0^h1]; t; t = t->next) {
 		if (local == t->parms.iph.saddr && remote == t->parms.iph.daddr) {
 			if (t->parms.i_key == key && (t->dev->flags&IFF_UP))
 				return t;
 		}
 	}
-	for (t = tunnels_r[h0^h1]; t; t = t->next) {
+	for (t = ign->tunnels_r[h0^h1]; t; t = t->next) {
 		if (remote == t->parms.iph.daddr) {
 			if (t->parms.i_key == key && (t->dev->flags&IFF_UP))
 				return t;
 		}
 	}
-	for (t = tunnels_l[h1]; t; t = t->next) {
+	for (t = ign->tunnels_l[h1]; t; t = t->next) {
 		if (local == t->parms.iph.saddr ||
 		     (local == t->parms.iph.daddr &&
 		      ipv4_is_multicast(local))) {
@@ -182,17 +190,18 @@ static struct ip_tunnel * ipgre_tunnel_lookup(__be32 remote, __be32 local, __be3
 				return t;
 		}
 	}
-	for (t = tunnels_wc[h1]; t; t = t->next) {
+	for (t = ign->tunnels_wc[h1]; t; t = t->next) {
 		if (t->parms.i_key == key && (t->dev->flags&IFF_UP))
 			return t;
 	}
 
-	if (ipgre_fb_tunnel_dev->flags&IFF_UP)
-		return netdev_priv(ipgre_fb_tunnel_dev);
+	if (ign->fb_tunnel_dev->flags&IFF_UP)
+		return netdev_priv(ign->fb_tunnel_dev);
 	return NULL;
 }
 
-static struct ip_tunnel **__ipgre_bucket(struct ip_tunnel_parm *parms)
+static struct ip_tunnel **__ipgre_bucket(struct ipgre_net *ign,
+		struct ip_tunnel_parm *parms)
 {
 	__be32 remote = parms->iph.daddr;
 	__be32 local = parms->iph.saddr;
@@ -207,17 +216,18 @@ static struct ip_tunnel **__ipgre_bucket(struct ip_tunnel_parm *parms)
 		h ^= HASH(remote);
 	}
 
-	return &tunnels[prio][h];
+	return &ign->tunnels[prio][h];
 }
 
-static inline struct ip_tunnel **ipgre_bucket(struct ip_tunnel *t)
+static inline struct ip_tunnel **ipgre_bucket(struct ipgre_net *ign,
+		struct ip_tunnel *t)
 {
-	return __ipgre_bucket(&t->parms);
+	return __ipgre_bucket(ign, &t->parms);
 }
 
-static void ipgre_tunnel_link(struct ip_tunnel *t)
+static void ipgre_tunnel_link(struct ipgre_net *ign, struct ip_tunnel *t)
 {
-	struct ip_tunnel **tp = ipgre_bucket(t);
+	struct ip_tunnel **tp = ipgre_bucket(ign, t);
 
 	t->next = *tp;
 	write_lock_bh(&ipgre_lock);
@@ -225,11 +235,11 @@ static void ipgre_tunnel_link(struct ip_tunnel *t)
 	write_unlock_bh(&ipgre_lock);
 }
 
-static void ipgre_tunnel_unlink(struct ip_tunnel *t)
+static void ipgre_tunnel_unlink(struct ipgre_net *ign, struct ip_tunnel *t)
 {
 	struct ip_tunnel **tp;
 
-	for (tp = ipgre_bucket(t); *tp; tp = &(*tp)->next) {
+	for (tp = ipgre_bucket(ign, t); *tp; tp = &(*tp)->next) {
 		if (t == *tp) {
 			write_lock_bh(&ipgre_lock);
 			*tp = t->next;
@@ -239,7 +249,8 @@ static void ipgre_tunnel_unlink(struct ip_tunnel *t)
 	}
 }
 
-static struct ip_tunnel * ipgre_tunnel_locate(struct ip_tunnel_parm *parms, int create)
+static struct ip_tunnel * ipgre_tunnel_locate(struct net *net,
+		struct ip_tunnel_parm *parms, int create)
 {
 	__be32 remote = parms->iph.daddr;
 	__be32 local = parms->iph.saddr;
@@ -247,8 +258,9 @@ static struct ip_tunnel * ipgre_tunnel_locate(struct ip_tunnel_parm *parms, int
 	struct ip_tunnel *t, **tp, *nt;
 	struct net_device *dev;
 	char name[IFNAMSIZ];
+	struct ipgre_net *ign = net_generic(net, ipgre_net_id);
 
-	for (tp = __ipgre_bucket(parms); (t = *tp) != NULL; tp = &t->next) {
+	for (tp = __ipgre_bucket(ign, parms); (t = *tp) != NULL; tp = &t->next) {
 		if (local == t->parms.iph.saddr && remote == t->parms.iph.daddr) {
 			if (key == t->parms.i_key)
 				return t;
@@ -266,6 +278,8 @@ static struct ip_tunnel * ipgre_tunnel_locate(struct ip_tunnel_parm *parms, int
 	if (!dev)
 	  return NULL;
 
+	dev_net_set(dev, net);
+
 	if (strchr(name, '%')) {
 		if (dev_alloc_name(dev, name) < 0)
 			goto failed_free;
@@ -279,7 +293,7 @@ static struct ip_tunnel * ipgre_tunnel_locate(struct ip_tunnel_parm *parms, int
 		goto failed_free;
 
 	dev_hold(dev);
-	ipgre_tunnel_link(nt);
+	ipgre_tunnel_link(ign, nt);
 	return nt;
 
 failed_free:
@@ -289,7 +303,10 @@ failed_free:
 
 static void ipgre_tunnel_uninit(struct net_device *dev)
 {
-	ipgre_tunnel_unlink(netdev_priv(dev));
+	struct net *net = dev_net(dev);
+	struct ipgre_net *ign = net_generic(net, ipgre_net_id);
+
+	ipgre_tunnel_unlink(ign, netdev_priv(dev));
 	dev_put(dev);
 }
 
@@ -363,7 +380,9 @@ static void ipgre_err(struct sk_buff *skb, u32 info)
 	}
 
 	read_lock(&ipgre_lock);
-	t = ipgre_tunnel_lookup(iph->daddr, iph->saddr, (flags&GRE_KEY) ? *(((__be32*)p) + (grehlen>>2) - 1) : 0);
+	t = ipgre_tunnel_lookup(dev_net(skb->dev), iph->daddr, iph->saddr,
+			(flags&GRE_KEY) ?
+			*(((__be32*)p) + (grehlen>>2) - 1) : 0);
 	if (t == NULL || t->parms.iph.daddr == 0 ||
 	    ipv4_is_multicast(t->parms.iph.daddr))
 		goto out;
@@ -476,7 +495,7 @@ out:
 	fl.fl4_dst = eiph->saddr;
 	fl.fl4_tos = RT_TOS(eiph->tos);
 	fl.proto = IPPROTO_GRE;
-	if (ip_route_output_key(&init_net, &rt, &fl)) {
+	if (ip_route_output_key(dev_net(skb->dev), &rt, &fl)) {
 		kfree_skb(skb2);
 		return;
 	}
@@ -489,7 +508,7 @@ out:
 		fl.fl4_dst = eiph->daddr;
 		fl.fl4_src = eiph->saddr;
 		fl.fl4_tos = eiph->tos;
-		if (ip_route_output_key(&init_net, &rt, &fl) ||
+		if (ip_route_output_key(dev_net(skb->dev), &rt, &fl) ||
 		    rt->u.dst.dev->type != ARPHRD_IPGRE) {
 			ip_rt_put(rt);
 			kfree_skb(skb2);
@@ -596,7 +615,8 @@ static int ipgre_rcv(struct sk_buff *skb)
 	}
 
 	read_lock(&ipgre_lock);
-	if ((tunnel = ipgre_tunnel_lookup(iph->saddr, iph->daddr, key)) != NULL) {
+	if ((tunnel = ipgre_tunnel_lookup(dev_net(skb->dev),
+					iph->saddr, iph->daddr, key)) != NULL) {
 		secpath_reset(skb);
 
 		skb->protocol = *(__be16*)(h + 2);
@@ -619,7 +639,7 @@ static int ipgre_rcv(struct sk_buff *skb)
 #ifdef CONFIG_NET_IPGRE_BROADCAST
 		if (ipv4_is_multicast(iph->daddr)) {
 			/* Looped back packet, drop it! */
-			if (((struct rtable*)skb->dst)->fl.iif == 0)
+			if (skb->rtable->fl.iif == 0)
 				goto drop;
 			tunnel->stat.multicast++;
 			skb->pkt_type = PACKET_BROADCAST;
@@ -699,7 +719,7 @@ static int ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 		}
 
 		if (skb->protocol == htons(ETH_P_IP)) {
-			rt = (struct rtable*)skb->dst;
+			rt = skb->rtable;
 			if ((dst = rt->rt_gateway) == 0)
 				goto tx_error_icmp;
 		}
@@ -744,7 +764,7 @@ static int ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 						.saddr = tiph->saddr,
 						.tos = RT_TOS(tos) } },
 				    .proto = IPPROTO_GRE };
-		if (ip_route_output_key(&init_net, &rt, &fl)) {
+		if (ip_route_output_key(dev_net(dev), &rt, &fl)) {
 			tunnel->stat.tx_carrier_errors++;
 			goto tx_error;
 		}
@@ -917,7 +937,7 @@ static void ipgre_tunnel_bind_dev(struct net_device *dev)
 						.tos = RT_TOS(iph->tos) } },
 				    .proto = IPPROTO_GRE };
 		struct rtable *rt;
-		if (!ip_route_output_key(&init_net, &rt, &fl)) {
+		if (!ip_route_output_key(dev_net(dev), &rt, &fl)) {
 			tdev = rt->u.dst.dev;
 			ip_rt_put(rt);
 		}
@@ -925,7 +945,7 @@ static void ipgre_tunnel_bind_dev(struct net_device *dev)
 	}
 
 	if (!tdev && tunnel->parms.link)
-		tdev = __dev_get_by_index(&init_net, tunnel->parms.link);
+		tdev = __dev_get_by_index(dev_net(dev), tunnel->parms.link);
 
 	if (tdev) {
 		hlen = tdev->hard_header_len;
@@ -954,16 +974,18 @@ ipgre_tunnel_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd)
 	int err = 0;
 	struct ip_tunnel_parm p;
 	struct ip_tunnel *t;
+	struct net *net = dev_net(dev);
+	struct ipgre_net *ign = net_generic(net, ipgre_net_id);
 
 	switch (cmd) {
 	case SIOCGETTUNNEL:
 		t = NULL;
-		if (dev == ipgre_fb_tunnel_dev) {
+		if (dev == ign->fb_tunnel_dev) {
 			if (copy_from_user(&p, ifr->ifr_ifru.ifru_data, sizeof(p))) {
 				err = -EFAULT;
 				break;
 			}
-			t = ipgre_tunnel_locate(&p, 0);
+			t = ipgre_tunnel_locate(net, &p, 0);
 		}
 		if (t == NULL)
 			t = netdev_priv(dev);
@@ -995,9 +1017,9 @@ ipgre_tunnel_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd)
 		if (!(p.o_flags&GRE_KEY))
 			p.o_key = 0;
 
-		t = ipgre_tunnel_locate(&p, cmd == SIOCADDTUNNEL);
+		t = ipgre_tunnel_locate(net, &p, cmd == SIOCADDTUNNEL);
 
-		if (dev != ipgre_fb_tunnel_dev && cmd == SIOCCHGTUNNEL) {
+		if (dev != ign->fb_tunnel_dev && cmd == SIOCCHGTUNNEL) {
 			if (t != NULL) {
 				if (t->dev != dev) {
 					err = -EEXIST;
@@ -1017,14 +1039,14 @@ ipgre_tunnel_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd)
 					err = -EINVAL;
 					break;
 				}
-				ipgre_tunnel_unlink(t);
+				ipgre_tunnel_unlink(ign, t);
 				t->parms.iph.saddr = p.iph.saddr;
 				t->parms.iph.daddr = p.iph.daddr;
 				t->parms.i_key = p.i_key;
 				t->parms.o_key = p.o_key;
 				memcpy(dev->dev_addr, &p.iph.saddr, 4);
 				memcpy(dev->broadcast, &p.iph.daddr, 4);
-				ipgre_tunnel_link(t);
+				ipgre_tunnel_link(ign, t);
 				netdev_state_change(dev);
 			}
 		}
@@ -1052,15 +1074,15 @@ ipgre_tunnel_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd)
 		if (!capable(CAP_NET_ADMIN))
 			goto done;
 
-		if (dev == ipgre_fb_tunnel_dev) {
+		if (dev == ign->fb_tunnel_dev) {
 			err = -EFAULT;
 			if (copy_from_user(&p, ifr->ifr_ifru.ifru_data, sizeof(p)))
 				goto done;
 			err = -ENOENT;
-			if ((t = ipgre_tunnel_locate(&p, 0)) == NULL)
+			if ((t = ipgre_tunnel_locate(net, &p, 0)) == NULL)
 				goto done;
 			err = -EPERM;
-			if (t == netdev_priv(ipgre_fb_tunnel_dev))
+			if (t == netdev_priv(ign->fb_tunnel_dev))
 				goto done;
 			dev = t->dev;
 		}
@@ -1173,7 +1195,7 @@ static int ipgre_open(struct net_device *dev)
 						.tos = RT_TOS(t->parms.iph.tos) } },
 				    .proto = IPPROTO_GRE };
 		struct rtable *rt;
-		if (ip_route_output_key(&init_net, &rt, &fl))
+		if (ip_route_output_key(dev_net(dev), &rt, &fl))
 			return -EADDRNOTAVAIL;
 		dev = rt->u.dst.dev;
 		ip_rt_put(rt);
@@ -1190,7 +1212,7 @@ static int ipgre_close(struct net_device *dev)
 	struct ip_tunnel *t = netdev_priv(dev);
 	if (ipv4_is_multicast(t->parms.iph.daddr) && t->mlink) {
 		struct in_device *in_dev;
-		in_dev = inetdev_by_index(dev->nd_net, t->mlink);
+		in_dev = inetdev_by_index(dev_net(dev), t->mlink);
 		if (in_dev) {
 			ip_mc_dec_group(in_dev, t->parms.iph.daddr);
 			in_dev_put(in_dev);
@@ -1216,6 +1238,7 @@ static void ipgre_tunnel_setup(struct net_device *dev)
 	dev->flags		= IFF_NOARP;
 	dev->iflink		= 0;
 	dev->addr_len		= 4;
+	dev->features		|= NETIF_F_NETNS_LOCAL;
 }
 
 static int ipgre_tunnel_init(struct net_device *dev)
@@ -1251,10 +1274,11 @@ static int ipgre_tunnel_init(struct net_device *dev)
 	return 0;
 }
 
-static int __init ipgre_fb_tunnel_init(struct net_device *dev)
+static int ipgre_fb_tunnel_init(struct net_device *dev)
 {
 	struct ip_tunnel *tunnel = netdev_priv(dev);
 	struct iphdr *iph = &tunnel->parms.iph;
+	struct ipgre_net *ign = net_generic(dev_net(dev), ipgre_net_id);
 
 	tunnel->dev = dev;
 	strcpy(tunnel->parms.name, dev->name);
@@ -1265,7 +1289,7 @@ static int __init ipgre_fb_tunnel_init(struct net_device *dev)
 	tunnel->hlen		= sizeof(struct iphdr) + 4;
 
 	dev_hold(dev);
-	tunnels_wc[0]		= tunnel;
+	ign->tunnels_wc[0]	= tunnel;
 	return 0;
 }
 
@@ -1273,56 +1297,98 @@ static int __init ipgre_fb_tunnel_init(struct net_device *dev)
 static struct net_protocol ipgre_protocol = {
 	.handler	=	ipgre_rcv,
 	.err_handler	=	ipgre_err,
+	.netns_ok	=	1,
 };
 
+static void ipgre_destroy_tunnels(struct ipgre_net *ign)
+{
+	int prio;
 
-/*
- *	And now the modules code and kernel interface.
- */
+	for (prio = 0; prio < 4; prio++) {
+		int h;
+		for (h = 0; h < HASH_SIZE; h++) {
+			struct ip_tunnel *t;
+			while ((t = ign->tunnels[prio][h]) != NULL)
+				unregister_netdevice(t->dev);
+		}
+	}
+}
 
-static int __init ipgre_init(void)
+static int ipgre_init_net(struct net *net)
 {
 	int err;
+	struct ipgre_net *ign;
 
-	printk(KERN_INFO "GRE over IPv4 tunneling driver\n");
+	err = -ENOMEM;
+	ign = kzalloc(sizeof(struct ipgre_net), GFP_KERNEL);
+	if (ign == NULL)
+		goto err_alloc;
 
-	if (inet_add_protocol(&ipgre_protocol, IPPROTO_GRE) < 0) {
-		printk(KERN_INFO "ipgre init: can't add protocol\n");
-		return -EAGAIN;
-	}
+	err = net_assign_generic(net, ipgre_net_id, ign);
+	if (err < 0)
+		goto err_assign;
 
-	ipgre_fb_tunnel_dev = alloc_netdev(sizeof(struct ip_tunnel), "gre0",
+	ign->fb_tunnel_dev = alloc_netdev(sizeof(struct ip_tunnel), "gre0",
 					   ipgre_tunnel_setup);
-	if (!ipgre_fb_tunnel_dev) {
+	if (!ign->fb_tunnel_dev) {
 		err = -ENOMEM;
-		goto err1;
+		goto err_alloc_dev;
 	}
 
-	ipgre_fb_tunnel_dev->init = ipgre_fb_tunnel_init;
+	ign->fb_tunnel_dev->init = ipgre_fb_tunnel_init;
+	dev_net_set(ign->fb_tunnel_dev, net);
 
-	if ((err = register_netdev(ipgre_fb_tunnel_dev)))
-		goto err2;
-out:
+	if ((err = register_netdev(ign->fb_tunnel_dev)))
+		goto err_reg_dev;
+
+	return 0;
+
+err_reg_dev:
+	free_netdev(ign->fb_tunnel_dev);
+err_alloc_dev:
+	/* nothing */
+err_assign:
+	kfree(ign);
+err_alloc:
 	return err;
-err2:
-	free_netdev(ipgre_fb_tunnel_dev);
-err1:
-	inet_del_protocol(&ipgre_protocol, IPPROTO_GRE);
-	goto out;
 }
 
-static void __exit ipgre_destroy_tunnels(void)
+static void ipgre_exit_net(struct net *net)
 {
-	int prio;
+	struct ipgre_net *ign;
 
-	for (prio = 0; prio < 4; prio++) {
-		int h;
-		for (h = 0; h < HASH_SIZE; h++) {
-			struct ip_tunnel *t;
-			while ((t = tunnels[prio][h]) != NULL)
-				unregister_netdevice(t->dev);
-		}
+	ign = net_generic(net, ipgre_net_id);
+	rtnl_lock();
+	ipgre_destroy_tunnels(ign);
+	rtnl_unlock();
+	kfree(ign);
+}
+
+static struct pernet_operations ipgre_net_ops = {
+	.init = ipgre_init_net,
+	.exit = ipgre_exit_net,
+};
+
+/*
+ *	And now the modules code and kernel interface.
+ */
+
+static int __init ipgre_init(void)
+{
+	int err;
+
+	printk(KERN_INFO "GRE over IPv4 tunneling driver\n");
+
+	if (inet_add_protocol(&ipgre_protocol, IPPROTO_GRE) < 0) {
+		printk(KERN_INFO "ipgre init: can't add protocol\n");
+		return -EAGAIN;
 	}
+
+	err = register_pernet_gen_device(&ipgre_net_id, &ipgre_net_ops);
+	if (err < 0)
+		inet_del_protocol(&ipgre_protocol, IPPROTO_GRE);
+
+	return err;
 }
 
 static void __exit ipgre_fini(void)
@@ -1330,9 +1396,7 @@ static void __exit ipgre_fini(void)
 	if (inet_del_protocol(&ipgre_protocol, IPPROTO_GRE) < 0)
 		printk(KERN_INFO "ipgre close: can't remove protocol\n");
 
-	rtnl_lock();
-	ipgre_destroy_tunnels();
-	rtnl_unlock();
+	unregister_pernet_gen_device(ipgre_net_id, &ipgre_net_ops);
 }
 
 module_init(ipgre_init);
diff --git a/net/ipv4/ip_input.c b/net/ipv4/ip_input.c
index 65631391d479..7b4bad6d572f 100644
--- a/net/ipv4/ip_input.c
+++ b/net/ipv4/ip_input.c
@@ -160,6 +160,7 @@ int ip_call_ra_chain(struct sk_buff *skb)
 	struct ip_ra_chain *ra;
 	u8 protocol = ip_hdr(skb)->protocol;
 	struct sock *last = NULL;
+	struct net_device *dev = skb->dev;
 
 	read_lock(&ip_ra_lock);
 	for (ra = ip_ra_chain; ra; ra = ra->next) {
@@ -170,7 +171,8 @@ int ip_call_ra_chain(struct sk_buff *skb)
 		 */
 		if (sk && inet_sk(sk)->num == protocol &&
 		    (!sk->sk_bound_dev_if ||
-		     sk->sk_bound_dev_if == skb->dev->ifindex)) {
+		     sk->sk_bound_dev_if == dev->ifindex) &&
+		    sock_net(sk) == dev_net(dev)) {
 			if (ip_hdr(skb)->frag_off & htons(IP_MF | IP_OFFSET)) {
 				if (ip_defrag(skb, IP_DEFRAG_CALL_RA_CHAIN)) {
 					read_unlock(&ip_ra_lock);
@@ -197,6 +199,8 @@ int ip_call_ra_chain(struct sk_buff *skb)
 
 static int ip_local_deliver_finish(struct sk_buff *skb)
 {
+	struct net *net = dev_net(skb->dev);
+
 	__skb_pull(skb, ip_hdrlen(skb));
 
 	/* Point into the IP datagram, just past the header. */
@@ -212,7 +216,8 @@ static int ip_local_deliver_finish(struct sk_buff *skb)
 		raw = raw_local_deliver(skb, protocol);
 
 		hash = protocol & (MAX_INET_PROTOS - 1);
-		if ((ipprot = rcu_dereference(inet_protos[hash])) != NULL) {
+		ipprot = rcu_dereference(inet_protos[hash]);
+		if (ipprot != NULL && (net == &init_net || ipprot->netns_ok)) {
 			int ret;
 
 			if (!ipprot->no_policy) {
@@ -283,13 +288,14 @@ static inline int ip_rcv_options(struct sk_buff *skb)
 	}
 
 	iph = ip_hdr(skb);
+	opt = &(IPCB(skb)->opt);
+	opt->optlen = iph->ihl*4 - sizeof(struct iphdr);
 
-	if (ip_options_compile(NULL, skb)) {
+	if (ip_options_compile(dev_net(dev), opt, skb)) {
 		IP_INC_STATS_BH(IPSTATS_MIB_INHDRERRORS);
 		goto drop;
 	}
 
-	opt = &(IPCB(skb)->opt);
 	if (unlikely(opt->srr)) {
 		struct in_device *in_dev = in_dev_get(dev);
 		if (in_dev) {
@@ -297,7 +303,7 @@ static inline int ip_rcv_options(struct sk_buff *skb)
 				if (IN_DEV_LOG_MARTIANS(in_dev) &&
 				    net_ratelimit())
 					printk(KERN_INFO "source route option "
-					       "%u.%u.%u.%u -> %u.%u.%u.%u\n",
+					       NIPQUAD_FMT " -> " NIPQUAD_FMT "\n",
 					       NIPQUAD(iph->saddr),
 					       NIPQUAD(iph->daddr));
 				in_dev_put(in_dev);
@@ -351,7 +357,7 @@ static int ip_rcv_finish(struct sk_buff *skb)
 	if (iph->ihl > 5 && ip_rcv_options(skb))
 		goto drop;
 
-	rt = (struct rtable*)skb->dst;
+	rt = skb->rtable;
 	if (rt->rt_type == RTN_MULTICAST)
 		IP_INC_STATS_BH(IPSTATS_MIB_INMCASTPKTS);
 	else if (rt->rt_type == RTN_BROADCAST)
@@ -372,9 +378,6 @@ int ip_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt,
 	struct iphdr *iph;
 	u32 len;
 
-	if (dev->nd_net != &init_net)
-		goto drop;
-
 	/* When the interface is in promisc. mode, drop all the crap
 	 * that it receives, do not try to analyse it.
 	 */
diff --git a/net/ipv4/ip_options.c b/net/ipv4/ip_options.c
index 4d315158fd3c..d107543d3f81 100644
--- a/net/ipv4/ip_options.c
+++ b/net/ipv4/ip_options.c
@@ -45,7 +45,6 @@ void ip_options_build(struct sk_buff * skb, struct ip_options * opt,
 	memcpy(&(IPCB(skb)->opt), opt, sizeof(struct ip_options));
 	memcpy(iph+sizeof(struct iphdr), opt->__data, opt->optlen);
 	opt = &(IPCB(skb)->opt);
-	opt->is_data = 0;
 
 	if (opt->srr)
 		memcpy(iph+opt->srr+iph[opt->srr+1]-4, &daddr, 4);
@@ -95,8 +94,6 @@ int ip_options_echo(struct ip_options * dopt, struct sk_buff * skb)
 
 	memset(dopt, 0, sizeof(struct ip_options));
 
-	dopt->is_data = 1;
-
 	sopt = &(IPCB(skb)->opt);
 
 	if (sopt->optlen == 0) {
@@ -107,10 +104,7 @@ int ip_options_echo(struct ip_options * dopt, struct sk_buff * skb)
 	sptr = skb_network_header(skb);
 	dptr = dopt->__data;
 
-	if (skb->dst)
-		daddr = ((struct rtable*)skb->dst)->rt_spec_dst;
-	else
-		daddr = ip_hdr(skb)->daddr;
+	daddr = skb->rtable->rt_spec_dst;
 
 	if (sopt->rr) {
 		optlen  = sptr[sopt->rr+1];
@@ -151,7 +145,7 @@ int ip_options_echo(struct ip_options * dopt, struct sk_buff * skb)
 						__be32 addr;
 
 						memcpy(&addr, sptr+soffset-1, 4);
-						if (inet_addr_type(&init_net, addr) != RTN_LOCAL) {
+						if (inet_addr_type(dev_net(skb->dst->dev), addr) != RTN_LOCAL) {
 							dopt->ts_needtime = 1;
 							soffset += 8;
 						}
@@ -254,26 +248,22 @@ void ip_options_fragment(struct sk_buff * skb)
  * If opt == NULL, then skb->data should point to IP header.
  */
 
-int ip_options_compile(struct ip_options * opt, struct sk_buff * skb)
+int ip_options_compile(struct net *net,
+		       struct ip_options * opt, struct sk_buff * skb)
 {
 	int l;
 	unsigned char * iph;
 	unsigned char * optptr;
 	int optlen;
 	unsigned char * pp_ptr = NULL;
-	struct rtable *rt = skb ? (struct rtable*)skb->dst : NULL;
-
-	if (!opt) {
-		opt = &(IPCB(skb)->opt);
-		iph = skb_network_header(skb);
-		opt->optlen = ((struct iphdr *)iph)->ihl*4 - sizeof(struct iphdr);
-		optptr = iph + sizeof(struct iphdr);
-		opt->is_data = 0;
-	} else {
-		optptr = opt->is_data ? opt->__data :
-					(unsigned char *)&(ip_hdr(skb)[1]);
-		iph = optptr - sizeof(struct iphdr);
-	}
+	struct rtable *rt = NULL;
+
+	if (skb != NULL) {
+		rt = skb->rtable;
+		optptr = (unsigned char *)&(ip_hdr(skb)[1]);
+	} else
+		optptr = opt->__data;
+	iph = optptr - sizeof(struct iphdr);
 
 	for (l = opt->optlen; l > 0; ) {
 		switch (*optptr) {
@@ -400,7 +390,7 @@ int ip_options_compile(struct ip_options * opt, struct sk_buff * skb)
 					{
 						__be32 addr;
 						memcpy(&addr, &optptr[optptr[2]-1], 4);
-						if (inet_addr_type(&init_net, addr) == RTN_UNICAST)
+						if (inet_addr_type(net, addr) == RTN_UNICAST)
 							break;
 						if (skb)
 							timeptr = (__be32*)&optptr[optptr[2]+3];
@@ -517,14 +507,13 @@ static struct ip_options *ip_options_get_alloc(const int optlen)
 		       GFP_KERNEL);
 }
 
-static int ip_options_get_finish(struct ip_options **optp,
+static int ip_options_get_finish(struct net *net, struct ip_options **optp,
 				 struct ip_options *opt, int optlen)
 {
 	while (optlen & 3)
 		opt->__data[optlen++] = IPOPT_END;
 	opt->optlen = optlen;
-	opt->is_data = 1;
-	if (optlen && ip_options_compile(opt, NULL)) {
+	if (optlen && ip_options_compile(net, opt, NULL)) {
 		kfree(opt);
 		return -EINVAL;
 	}
@@ -533,7 +522,8 @@ static int ip_options_get_finish(struct ip_options **optp,
 	return 0;
 }
 
-int ip_options_get_from_user(struct ip_options **optp, unsigned char __user *data, int optlen)
+int ip_options_get_from_user(struct net *net, struct ip_options **optp,
+			     unsigned char __user *data, int optlen)
 {
 	struct ip_options *opt = ip_options_get_alloc(optlen);
 
@@ -543,10 +533,11 @@ int ip_options_get_from_user(struct ip_options **optp, unsigned char __user *dat
 		kfree(opt);
 		return -EFAULT;
 	}
-	return ip_options_get_finish(optp, opt, optlen);
+	return ip_options_get_finish(net, optp, opt, optlen);
 }
 
-int ip_options_get(struct ip_options **optp, unsigned char *data, int optlen)
+int ip_options_get(struct net *net, struct ip_options **optp,
+		   unsigned char *data, int optlen)
 {
 	struct ip_options *opt = ip_options_get_alloc(optlen);
 
@@ -554,14 +545,14 @@ int ip_options_get(struct ip_options **optp, unsigned char *data, int optlen)
 		return -ENOMEM;
 	if (optlen)
 		memcpy(opt->__data, data, optlen);
-	return ip_options_get_finish(optp, opt, optlen);
+	return ip_options_get_finish(net, optp, opt, optlen);
 }
 
 void ip_forward_options(struct sk_buff *skb)
 {
 	struct   ip_options * opt	= &(IPCB(skb)->opt);
 	unsigned char * optptr;
-	struct rtable *rt = (struct rtable*)skb->dst;
+	struct rtable *rt = skb->rtable;
 	unsigned char *raw = skb_network_header(skb);
 
 	if (opt->rr_needaddr) {
@@ -609,7 +600,7 @@ int ip_options_rcv_srr(struct sk_buff *skb)
 	__be32 nexthop;
 	struct iphdr *iph = ip_hdr(skb);
 	unsigned char *optptr = skb_network_header(skb) + opt->srr;
-	struct rtable *rt = (struct rtable*)skb->dst;
+	struct rtable *rt = skb->rtable;
 	struct rtable *rt2;
 	int err;
 
@@ -634,13 +625,13 @@ int ip_options_rcv_srr(struct sk_buff *skb)
 		}
 		memcpy(&nexthop, &optptr[srrptr-1], 4);
 
-		rt = (struct rtable*)skb->dst;
-		skb->dst = NULL;
+		rt = skb->rtable;
+		skb->rtable = NULL;
 		err = ip_route_input(skb, nexthop, iph->saddr, iph->tos, skb->dev);
-		rt2 = (struct rtable*)skb->dst;
+		rt2 = skb->rtable;
 		if (err || (rt2->rt_type != RTN_UNICAST && rt2->rt_type != RTN_LOCAL)) {
 			ip_rt_put(rt2);
-			skb->dst = &rt->u.dst;
+			skb->rtable = rt;
 			return -EINVAL;
 		}
 		ip_rt_put(rt);
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 341779e685d9..08349267ceb4 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -142,7 +142,7 @@ int ip_build_and_send_pkt(struct sk_buff *skb, struct sock *sk,
 			  __be32 saddr, __be32 daddr, struct ip_options *opt)
 {
 	struct inet_sock *inet = inet_sk(sk);
-	struct rtable *rt = (struct rtable *)skb->dst;
+	struct rtable *rt = skb->rtable;
 	struct iphdr *iph;
 
 	/* Build the IP header. */
@@ -240,7 +240,7 @@ static int ip_finish_output(struct sk_buff *skb)
 int ip_mc_output(struct sk_buff *skb)
 {
 	struct sock *sk = skb->sk;
-	struct rtable *rt = (struct rtable*)skb->dst;
+	struct rtable *rt = skb->rtable;
 	struct net_device *dev = rt->u.dst.dev;
 
 	/*
@@ -321,7 +321,7 @@ int ip_queue_xmit(struct sk_buff *skb, int ipfragok)
 	/* Skip all of this if the packet is already routed,
 	 * f.e. by something like SCTP.
 	 */
-	rt = (struct rtable *) skb->dst;
+	rt = skb->rtable;
 	if (rt != NULL)
 		goto packet_routed;
 
@@ -351,7 +351,7 @@ int ip_queue_xmit(struct sk_buff *skb, int ipfragok)
 			 * itself out.
 			 */
 			security_sk_classify_flow(sk, &fl);
-			if (ip_route_output_flow(&init_net, &rt, &fl, sk, 0))
+			if (ip_route_output_flow(sock_net(sk), &rt, &fl, sk, 0))
 				goto no_route;
 		}
 		sk_setup_caps(sk, &rt->u.dst);
@@ -441,7 +441,7 @@ int ip_fragment(struct sk_buff *skb, int (*output)(struct sk_buff*))
 	unsigned int mtu, hlen, left, len, ll_rs, pad;
 	int offset;
 	__be16 not_last_frag;
-	struct rtable *rt = (struct rtable*)skb->dst;
+	struct rtable *rt = skb->rtable;
 	int err = 0;
 
 	dev = rt->u.dst.dev;
@@ -825,7 +825,7 @@ int ip_append_data(struct sock *sk,
 		inet->cork.fragsize = mtu = inet->pmtudisc == IP_PMTUDISC_PROBE ?
 					    rt->u.dst.dev->mtu :
 					    dst_mtu(rt->u.dst.path);
-		inet->cork.rt = rt;
+		inet->cork.dst = &rt->u.dst;
 		inet->cork.length = 0;
 		sk->sk_sndmsg_page = NULL;
 		sk->sk_sndmsg_off = 0;
@@ -834,7 +834,7 @@ int ip_append_data(struct sock *sk,
 			transhdrlen += exthdrlen;
 		}
 	} else {
-		rt = inet->cork.rt;
+		rt = (struct rtable *)inet->cork.dst;
 		if (inet->cork.flags & IPCORK_OPT)
 			opt = inet->cork.opt;
 
@@ -1083,7 +1083,7 @@ ssize_t	ip_append_page(struct sock *sk, struct page *page,
 	if (skb_queue_empty(&sk->sk_write_queue))
 		return -EINVAL;
 
-	rt = inet->cork.rt;
+	rt = (struct rtable *)inet->cork.dst;
 	if (inet->cork.flags & IPCORK_OPT)
 		opt = inet->cork.opt;
 
@@ -1208,10 +1208,8 @@ static void ip_cork_release(struct inet_sock *inet)
 	inet->cork.flags &= ~IPCORK_OPT;
 	kfree(inet->cork.opt);
 	inet->cork.opt = NULL;
-	if (inet->cork.rt) {
-		ip_rt_put(inet->cork.rt);
-		inet->cork.rt = NULL;
-	}
+	dst_release(inet->cork.dst);
+	inet->cork.dst = NULL;
 }
 
 /*
@@ -1224,7 +1222,7 @@ int ip_push_pending_frames(struct sock *sk)
 	struct sk_buff **tail_skb;
 	struct inet_sock *inet = inet_sk(sk);
 	struct ip_options *opt = NULL;
-	struct rtable *rt = inet->cork.rt;
+	struct rtable *rt = (struct rtable *)inet->cork.dst;
 	struct iphdr *iph;
 	__be16 df = 0;
 	__u8 ttl;
@@ -1357,7 +1355,7 @@ void ip_send_reply(struct sock *sk, struct sk_buff *skb, struct ip_reply_arg *ar
 	} replyopts;
 	struct ipcm_cookie ipc;
 	__be32 daddr;
-	struct rtable *rt = (struct rtable*)skb->dst;
+	struct rtable *rt = skb->rtable;
 
 	if (ip_options_echo(&replyopts.opt, skb))
 		return;
@@ -1384,7 +1382,7 @@ void ip_send_reply(struct sock *sk, struct sk_buff *skb, struct ip_reply_arg *ar
 						 .dport = tcp_hdr(skb)->source } },
 				    .proto = sk->sk_protocol };
 		security_skb_classify_flow(skb, &fl);
-		if (ip_route_output_key(sk->sk_net, &rt, &fl))
+		if (ip_route_output_key(sock_net(sk), &rt, &fl))
 			return;
 	}
 
diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c
index c2921d01e925..d8adfd4972e2 100644
--- a/net/ipv4/ip_sockglue.c
+++ b/net/ipv4/ip_sockglue.c
@@ -57,7 +57,7 @@
 static void ip_cmsg_recv_pktinfo(struct msghdr *msg, struct sk_buff *skb)
 {
 	struct in_pktinfo info;
-	struct rtable *rt = (struct rtable *)skb->dst;
+	struct rtable *rt = skb->rtable;
 
 	info.ipi_addr.s_addr = ip_hdr(skb)->daddr;
 	if (rt) {
@@ -163,7 +163,7 @@ void ip_cmsg_recv(struct msghdr *msg, struct sk_buff *skb)
 		ip_cmsg_recv_security(msg, skb);
 }
 
-int ip_cmsg_send(struct msghdr *msg, struct ipcm_cookie *ipc)
+int ip_cmsg_send(struct net *net, struct msghdr *msg, struct ipcm_cookie *ipc)
 {
 	int err;
 	struct cmsghdr *cmsg;
@@ -176,7 +176,7 @@ int ip_cmsg_send(struct msghdr *msg, struct ipcm_cookie *ipc)
 		switch (cmsg->cmsg_type) {
 		case IP_RETOPTS:
 			err = cmsg->cmsg_len - CMSG_ALIGN(sizeof(struct cmsghdr));
-			err = ip_options_get(&ipc->opt, CMSG_DATA(cmsg), err < 40 ? err : 40);
+			err = ip_options_get(net, &ipc->opt, CMSG_DATA(cmsg), err < 40 ? err : 40);
 			if (err)
 				return err;
 			break;
@@ -449,7 +449,8 @@ static int do_ip_setsockopt(struct sock *sk, int level,
 		struct ip_options * opt = NULL;
 		if (optlen > 40 || optlen < 0)
 			goto e_inval;
-		err = ip_options_get_from_user(&opt, optval, optlen);
+		err = ip_options_get_from_user(sock_net(sk), &opt,
+					       optval, optlen);
 		if (err)
 			break;
 		if (inet->is_icsk) {
@@ -589,13 +590,13 @@ static int do_ip_setsockopt(struct sock *sk, int level,
 				err = 0;
 				break;
 			}
-			dev = ip_dev_find(&init_net, mreq.imr_address.s_addr);
+			dev = ip_dev_find(sock_net(sk), mreq.imr_address.s_addr);
 			if (dev) {
 				mreq.imr_ifindex = dev->ifindex;
 				dev_put(dev);
 			}
 		} else
-			dev = __dev_get_by_index(&init_net, mreq.imr_ifindex);
+			dev = __dev_get_by_index(sock_net(sk), mreq.imr_ifindex);
 
 
 		err = -EADDRNOTAVAIL;
diff --git a/net/ipv4/ipcomp.c b/net/ipv4/ipcomp.c
index 58b60b2fb011..fb53ddfea5b5 100644
--- a/net/ipv4/ipcomp.c
+++ b/net/ipv4/ipcomp.c
@@ -179,7 +179,7 @@ static void ipcomp4_err(struct sk_buff *skb, u32 info)
 			      spi, IPPROTO_COMP, AF_INET);
 	if (!x)
 		return;
-	NETDEBUG(KERN_DEBUG "pmtu discovery on SA IPCOMP/%08x/%u.%u.%u.%u\n",
+	NETDEBUG(KERN_DEBUG "pmtu discovery on SA IPCOMP/%08x/" NIPQUAD_FMT "\n",
 		 spi, NIPQUAD(iph->daddr));
 	xfrm_state_put(x);
 }
diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c
index 4824fe8996bf..0f42d1c1f690 100644
--- a/net/ipv4/ipconfig.c
+++ b/net/ipv4/ipconfig.c
@@ -292,7 +292,7 @@ static int __init ic_dev_ioctl(unsigned int cmd, struct ifreq *arg)
 
 	mm_segment_t oldfs = get_fs();
 	set_fs(get_ds());
-	res = devinet_ioctl(cmd, (struct ifreq __user *) arg);
+	res = devinet_ioctl(&init_net, cmd, (struct ifreq __user *) arg);
 	set_fs(oldfs);
 	return res;
 }
@@ -376,7 +376,7 @@ static int __init ic_defaults(void)
 	 */
 
 	if (!ic_host_name_set)
-		sprintf(init_utsname()->nodename, "%u.%u.%u.%u", NIPQUAD(ic_myaddr));
+		sprintf(init_utsname()->nodename, NIPQUAD_FMT, NIPQUAD(ic_myaddr));
 
 	if (root_server_addr == NONE)
 		root_server_addr = ic_servaddr;
@@ -389,11 +389,11 @@ static int __init ic_defaults(void)
 		else if (IN_CLASSC(ntohl(ic_myaddr)))
 			ic_netmask = htonl(IN_CLASSC_NET);
 		else {
-			printk(KERN_ERR "IP-Config: Unable to guess netmask for address %u.%u.%u.%u\n",
+			printk(KERN_ERR "IP-Config: Unable to guess netmask for address " NIPQUAD_FMT "\n",
 				NIPQUAD(ic_myaddr));
 			return -1;
 		}
-		printk("IP-Config: Guessing netmask %u.%u.%u.%u\n", NIPQUAD(ic_netmask));
+		printk("IP-Config: Guessing netmask " NIPQUAD_FMT "\n", NIPQUAD(ic_netmask));
 	}
 
 	return 0;
@@ -434,7 +434,7 @@ ic_rarp_recv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt
 	unsigned char *sha, *tha;		/* s for "source", t for "target" */
 	struct ic_device *d;
 
-	if (dev->nd_net != &init_net)
+	if (dev_net(dev) != &init_net)
 		goto drop;
 
 	if ((skb = skb_share_check(skb, GFP_ATOMIC)) == NULL)
@@ -460,10 +460,7 @@ ic_rarp_recv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt
 	if (rarp->ar_pro != htons(ETH_P_IP))
 		goto drop;
 
-	if (!pskb_may_pull(skb,
-			   sizeof(struct arphdr) +
-			   (2 * dev->addr_len) +
-			   (2 * 4)))
+	if (!pskb_may_pull(skb, arp_hdr_len(dev)))
 		goto drop;
 
 	/* OK, it is all there and looks valid, process... */
@@ -857,7 +854,7 @@ static int __init ic_bootp_recv(struct sk_buff *skb, struct net_device *dev, str
 	struct ic_device *d;
 	int len, ext_len;
 
-	if (dev->nd_net != &init_net)
+	if (dev_net(dev) != &init_net)
 		goto drop;
 
 	/* Perform verifications before taking the lock.  */
@@ -984,9 +981,9 @@ static int __init ic_bootp_recv(struct sk_buff *skb, struct net_device *dev, str
 				ic_myaddr = b->your_ip;
 				ic_servaddr = server_id;
 #ifdef IPCONFIG_DEBUG
-				printk("DHCP: Offered address %u.%u.%u.%u",
+				printk("DHCP: Offered address " NIPQUAD_FMT,
 				       NIPQUAD(ic_myaddr));
-				printk(" by server %u.%u.%u.%u\n",
+				printk(" by server " NIPQUAD_FMT "\n",
 				       NIPQUAD(ic_servaddr));
 #endif
 				/* The DHCP indicated server address takes
@@ -1182,11 +1179,11 @@ static int __init ic_dynamic(void)
 		return -1;
 	}
 
-	printk("IP-Config: Got %s answer from %u.%u.%u.%u, ",
+	printk("IP-Config: Got %s answer from " NIPQUAD_FMT ", ",
 		((ic_got_reply & IC_RARP) ? "RARP"
 		 : (ic_proto_enabled & IC_USE_DHCP) ? "DHCP" : "BOOTP"),
 		NIPQUAD(ic_servaddr));
-	printk("my address is %u.%u.%u.%u\n", NIPQUAD(ic_myaddr));
+	printk("my address is " NIPQUAD_FMT "\n", NIPQUAD(ic_myaddr));
 
 	return 0;
 }
@@ -1212,12 +1209,12 @@ static int pnp_seq_show(struct seq_file *seq, void *v)
 	for (i = 0; i < CONF_NAMESERVERS_MAX; i++) {
 		if (ic_nameservers[i] != NONE)
 			seq_printf(seq,
-				   "nameserver %u.%u.%u.%u\n",
+				   "nameserver " NIPQUAD_FMT "\n",
 				   NIPQUAD(ic_nameservers[i]));
 	}
 	if (ic_servaddr != NONE)
 		seq_printf(seq,
-			   "bootserver %u.%u.%u.%u\n",
+			   "bootserver " NIPQUAD_FMT "\n",
 			   NIPQUAD(ic_servaddr));
 	return 0;
 }
@@ -1392,13 +1389,13 @@ static int __init ip_auto_config(void)
 	 */
 	printk("IP-Config: Complete:");
 	printk("\n     device=%s", ic_dev->name);
-	printk(", addr=%u.%u.%u.%u", NIPQUAD(ic_myaddr));
-	printk(", mask=%u.%u.%u.%u", NIPQUAD(ic_netmask));
-	printk(", gw=%u.%u.%u.%u", NIPQUAD(ic_gateway));
+	printk(", addr=" NIPQUAD_FMT, NIPQUAD(ic_myaddr));
+	printk(", mask=" NIPQUAD_FMT, NIPQUAD(ic_netmask));
+	printk(", gw=" NIPQUAD_FMT, NIPQUAD(ic_gateway));
 	printk(",\n     host=%s, domain=%s, nis-domain=%s",
 	       utsname()->nodename, ic_domain, utsname()->domainname);
-	printk(",\n     bootserver=%u.%u.%u.%u", NIPQUAD(ic_servaddr));
-	printk(", rootserver=%u.%u.%u.%u", NIPQUAD(root_server_addr));
+	printk(",\n     bootserver=" NIPQUAD_FMT, NIPQUAD(ic_servaddr));
+	printk(", rootserver=" NIPQUAD_FMT, NIPQUAD(root_server_addr));
 	printk(", rootpath=%s", root_server_path);
 	printk("\n");
 #endif /* !SILENT */
diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c
index dbaed69de06a..149111f08e8d 100644
--- a/net/ipv4/ipip.c
+++ b/net/ipv4/ipip.c
@@ -115,49 +115,57 @@
 #include <net/ipip.h>
 #include <net/inet_ecn.h>
 #include <net/xfrm.h>
+#include <net/net_namespace.h>
+#include <net/netns/generic.h>
 
 #define HASH_SIZE  16
 #define HASH(addr) (((__force u32)addr^((__force u32)addr>>4))&0xF)
 
+static int ipip_net_id;
+struct ipip_net {
+	struct ip_tunnel *tunnels_r_l[HASH_SIZE];
+	struct ip_tunnel *tunnels_r[HASH_SIZE];
+	struct ip_tunnel *tunnels_l[HASH_SIZE];
+	struct ip_tunnel *tunnels_wc[1];
+	struct ip_tunnel **tunnels[4];
+
+	struct net_device *fb_tunnel_dev;
+};
+
 static int ipip_fb_tunnel_init(struct net_device *dev);
 static int ipip_tunnel_init(struct net_device *dev);
 static void ipip_tunnel_setup(struct net_device *dev);
 
-static struct net_device *ipip_fb_tunnel_dev;
-
-static struct ip_tunnel *tunnels_r_l[HASH_SIZE];
-static struct ip_tunnel *tunnels_r[HASH_SIZE];
-static struct ip_tunnel *tunnels_l[HASH_SIZE];
-static struct ip_tunnel *tunnels_wc[1];
-static struct ip_tunnel **tunnels[4] = { tunnels_wc, tunnels_l, tunnels_r, tunnels_r_l };
-
 static DEFINE_RWLOCK(ipip_lock);
 
-static struct ip_tunnel * ipip_tunnel_lookup(__be32 remote, __be32 local)
+static struct ip_tunnel * ipip_tunnel_lookup(struct net *net,
+		__be32 remote, __be32 local)
 {
 	unsigned h0 = HASH(remote);
 	unsigned h1 = HASH(local);
 	struct ip_tunnel *t;
+	struct ipip_net *ipn = net_generic(net, ipip_net_id);
 
-	for (t = tunnels_r_l[h0^h1]; t; t = t->next) {
+	for (t = ipn->tunnels_r_l[h0^h1]; t; t = t->next) {
 		if (local == t->parms.iph.saddr &&
 		    remote == t->parms.iph.daddr && (t->dev->flags&IFF_UP))
 			return t;
 	}
-	for (t = tunnels_r[h0]; t; t = t->next) {
+	for (t = ipn->tunnels_r[h0]; t; t = t->next) {
 		if (remote == t->parms.iph.daddr && (t->dev->flags&IFF_UP))
 			return t;
 	}
-	for (t = tunnels_l[h1]; t; t = t->next) {
+	for (t = ipn->tunnels_l[h1]; t; t = t->next) {
 		if (local == t->parms.iph.saddr && (t->dev->flags&IFF_UP))
 			return t;
 	}
-	if ((t = tunnels_wc[0]) != NULL && (t->dev->flags&IFF_UP))
+	if ((t = ipn->tunnels_wc[0]) != NULL && (t->dev->flags&IFF_UP))
 		return t;
 	return NULL;
 }
 
-static struct ip_tunnel **__ipip_bucket(struct ip_tunnel_parm *parms)
+static struct ip_tunnel **__ipip_bucket(struct ipip_net *ipn,
+		struct ip_tunnel_parm *parms)
 {
 	__be32 remote = parms->iph.daddr;
 	__be32 local = parms->iph.saddr;
@@ -172,19 +180,20 @@ static struct ip_tunnel **__ipip_bucket(struct ip_tunnel_parm *parms)
 		prio |= 1;
 		h ^= HASH(local);
 	}
-	return &tunnels[prio][h];
+	return &ipn->tunnels[prio][h];
 }
 
-static inline struct ip_tunnel **ipip_bucket(struct ip_tunnel *t)
+static inline struct ip_tunnel **ipip_bucket(struct ipip_net *ipn,
+		struct ip_tunnel *t)
 {
-	return __ipip_bucket(&t->parms);
+	return __ipip_bucket(ipn, &t->parms);
 }
 
-static void ipip_tunnel_unlink(struct ip_tunnel *t)
+static void ipip_tunnel_unlink(struct ipip_net *ipn, struct ip_tunnel *t)
 {
 	struct ip_tunnel **tp;
 
-	for (tp = ipip_bucket(t); *tp; tp = &(*tp)->next) {
+	for (tp = ipip_bucket(ipn, t); *tp; tp = &(*tp)->next) {
 		if (t == *tp) {
 			write_lock_bh(&ipip_lock);
 			*tp = t->next;
@@ -194,9 +203,9 @@ static void ipip_tunnel_unlink(struct ip_tunnel *t)
 	}
 }
 
-static void ipip_tunnel_link(struct ip_tunnel *t)
+static void ipip_tunnel_link(struct ipip_net *ipn, struct ip_tunnel *t)
 {
-	struct ip_tunnel **tp = ipip_bucket(t);
+	struct ip_tunnel **tp = ipip_bucket(ipn, t);
 
 	t->next = *tp;
 	write_lock_bh(&ipip_lock);
@@ -204,15 +213,17 @@ static void ipip_tunnel_link(struct ip_tunnel *t)
 	write_unlock_bh(&ipip_lock);
 }
 
-static struct ip_tunnel * ipip_tunnel_locate(struct ip_tunnel_parm *parms, int create)
+static struct ip_tunnel * ipip_tunnel_locate(struct net *net,
+		struct ip_tunnel_parm *parms, int create)
 {
 	__be32 remote = parms->iph.daddr;
 	__be32 local = parms->iph.saddr;
 	struct ip_tunnel *t, **tp, *nt;
 	struct net_device *dev;
 	char name[IFNAMSIZ];
+	struct ipip_net *ipn = net_generic(net, ipip_net_id);
 
-	for (tp = __ipip_bucket(parms); (t = *tp) != NULL; tp = &t->next) {
+	for (tp = __ipip_bucket(ipn, parms); (t = *tp) != NULL; tp = &t->next) {
 		if (local == t->parms.iph.saddr && remote == t->parms.iph.daddr)
 			return t;
 	}
@@ -228,6 +239,8 @@ static struct ip_tunnel * ipip_tunnel_locate(struct ip_tunnel_parm *parms, int c
 	if (dev == NULL)
 		return NULL;
 
+	dev_net_set(dev, net);
+
 	if (strchr(name, '%')) {
 		if (dev_alloc_name(dev, name) < 0)
 			goto failed_free;
@@ -241,7 +254,7 @@ static struct ip_tunnel * ipip_tunnel_locate(struct ip_tunnel_parm *parms, int c
 		goto failed_free;
 
 	dev_hold(dev);
-	ipip_tunnel_link(nt);
+	ipip_tunnel_link(ipn, nt);
 	return nt;
 
 failed_free:
@@ -251,12 +264,15 @@ failed_free:
 
 static void ipip_tunnel_uninit(struct net_device *dev)
 {
-	if (dev == ipip_fb_tunnel_dev) {
+	struct net *net = dev_net(dev);
+	struct ipip_net *ipn = net_generic(net, ipip_net_id);
+
+	if (dev == ipn->fb_tunnel_dev) {
 		write_lock_bh(&ipip_lock);
-		tunnels_wc[0] = NULL;
+		ipn->tunnels_wc[0] = NULL;
 		write_unlock_bh(&ipip_lock);
 	} else
-		ipip_tunnel_unlink(netdev_priv(dev));
+		ipip_tunnel_unlink(ipn, netdev_priv(dev));
 	dev_put(dev);
 }
 
@@ -305,7 +321,7 @@ static int ipip_err(struct sk_buff *skb, u32 info)
 	err = -ENOENT;
 
 	read_lock(&ipip_lock);
-	t = ipip_tunnel_lookup(iph->daddr, iph->saddr);
+	t = ipip_tunnel_lookup(dev_net(skb->dev), iph->daddr, iph->saddr);
 	if (t == NULL || t->parms.iph.daddr == 0)
 		goto out;
 
@@ -401,7 +417,7 @@ out:
 	fl.fl4_daddr = eiph->saddr;
 	fl.fl4_tos = RT_TOS(eiph->tos);
 	fl.proto = IPPROTO_IPIP;
-	if (ip_route_output_key(&init_net, &rt, &key)) {
+	if (ip_route_output_key(dev_net(skb->dev), &rt, &key)) {
 		kfree_skb(skb2);
 		return 0;
 	}
@@ -414,7 +430,7 @@ out:
 		fl.fl4_daddr = eiph->daddr;
 		fl.fl4_src = eiph->saddr;
 		fl.fl4_tos = eiph->tos;
-		if (ip_route_output_key(&init_net, &rt, &fl) ||
+		if (ip_route_output_key(dev_net(skb->dev), &rt, &fl) ||
 		    rt->u.dst.dev->type != ARPHRD_TUNNEL) {
 			ip_rt_put(rt);
 			kfree_skb(skb2);
@@ -465,7 +481,8 @@ static int ipip_rcv(struct sk_buff *skb)
 	const struct iphdr *iph = ip_hdr(skb);
 
 	read_lock(&ipip_lock);
-	if ((tunnel = ipip_tunnel_lookup(iph->saddr, iph->daddr)) != NULL) {
+	if ((tunnel = ipip_tunnel_lookup(dev_net(skb->dev),
+					iph->saddr, iph->daddr)) != NULL) {
 		if (!xfrm4_policy_check(NULL, XFRM_POLICY_IN, skb)) {
 			read_unlock(&ipip_lock);
 			kfree_skb(skb);
@@ -528,7 +545,7 @@ static int ipip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 
 	if (!dst) {
 		/* NBMA tunnel */
-		if ((rt = (struct rtable*)skb->dst) == NULL) {
+		if ((rt = skb->rtable) == NULL) {
 			tunnel->stat.tx_fifo_errors++;
 			goto tx_error;
 		}
@@ -543,7 +560,7 @@ static int ipip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 						.saddr = tiph->saddr,
 						.tos = RT_TOS(tos) } },
 				    .proto = IPPROTO_IPIP };
-		if (ip_route_output_key(&init_net, &rt, &fl)) {
+		if (ip_route_output_key(dev_net(dev), &rt, &fl)) {
 			tunnel->stat.tx_carrier_errors++;
 			goto tx_error_icmp;
 		}
@@ -664,7 +681,7 @@ static void ipip_tunnel_bind_dev(struct net_device *dev)
 						.tos = RT_TOS(iph->tos) } },
 				    .proto = IPPROTO_IPIP };
 		struct rtable *rt;
-		if (!ip_route_output_key(&init_net, &rt, &fl)) {
+		if (!ip_route_output_key(dev_net(dev), &rt, &fl)) {
 			tdev = rt->u.dst.dev;
 			ip_rt_put(rt);
 		}
@@ -672,7 +689,7 @@ static void ipip_tunnel_bind_dev(struct net_device *dev)
 	}
 
 	if (!tdev && tunnel->parms.link)
-		tdev = __dev_get_by_index(&init_net, tunnel->parms.link);
+		tdev = __dev_get_by_index(dev_net(dev), tunnel->parms.link);
 
 	if (tdev) {
 		dev->hard_header_len = tdev->hard_header_len + sizeof(struct iphdr);
@@ -687,16 +704,18 @@ ipip_tunnel_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd)
 	int err = 0;
 	struct ip_tunnel_parm p;
 	struct ip_tunnel *t;
+	struct net *net = dev_net(dev);
+	struct ipip_net *ipn = net_generic(net, ipip_net_id);
 
 	switch (cmd) {
 	case SIOCGETTUNNEL:
 		t = NULL;
-		if (dev == ipip_fb_tunnel_dev) {
+		if (dev == ipn->fb_tunnel_dev) {
 			if (copy_from_user(&p, ifr->ifr_ifru.ifru_data, sizeof(p))) {
 				err = -EFAULT;
 				break;
 			}
-			t = ipip_tunnel_locate(&p, 0);
+			t = ipip_tunnel_locate(net, &p, 0);
 		}
 		if (t == NULL)
 			t = netdev_priv(dev);
@@ -722,9 +741,9 @@ ipip_tunnel_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd)
 		if (p.iph.ttl)
 			p.iph.frag_off |= htons(IP_DF);
 
-		t = ipip_tunnel_locate(&p, cmd == SIOCADDTUNNEL);
+		t = ipip_tunnel_locate(net, &p, cmd == SIOCADDTUNNEL);
 
-		if (dev != ipip_fb_tunnel_dev && cmd == SIOCCHGTUNNEL) {
+		if (dev != ipn->fb_tunnel_dev && cmd == SIOCCHGTUNNEL) {
 			if (t != NULL) {
 				if (t->dev != dev) {
 					err = -EEXIST;
@@ -737,12 +756,12 @@ ipip_tunnel_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd)
 					break;
 				}
 				t = netdev_priv(dev);
-				ipip_tunnel_unlink(t);
+				ipip_tunnel_unlink(ipn, t);
 				t->parms.iph.saddr = p.iph.saddr;
 				t->parms.iph.daddr = p.iph.daddr;
 				memcpy(dev->dev_addr, &p.iph.saddr, 4);
 				memcpy(dev->broadcast, &p.iph.daddr, 4);
-				ipip_tunnel_link(t);
+				ipip_tunnel_link(ipn, t);
 				netdev_state_change(dev);
 			}
 		}
@@ -770,15 +789,15 @@ ipip_tunnel_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd)
 		if (!capable(CAP_NET_ADMIN))
 			goto done;
 
-		if (dev == ipip_fb_tunnel_dev) {
+		if (dev == ipn->fb_tunnel_dev) {
 			err = -EFAULT;
 			if (copy_from_user(&p, ifr->ifr_ifru.ifru_data, sizeof(p)))
 				goto done;
 			err = -ENOENT;
-			if ((t = ipip_tunnel_locate(&p, 0)) == NULL)
+			if ((t = ipip_tunnel_locate(net, &p, 0)) == NULL)
 				goto done;
 			err = -EPERM;
-			if (t->dev == ipip_fb_tunnel_dev)
+			if (t->dev == ipn->fb_tunnel_dev)
 				goto done;
 			dev = t->dev;
 		}
@@ -822,6 +841,7 @@ static void ipip_tunnel_setup(struct net_device *dev)
 	dev->flags		= IFF_NOARP;
 	dev->iflink		= 0;
 	dev->addr_len		= 4;
+	dev->features		|= NETIF_F_NETNS_LOCAL;
 }
 
 static int ipip_tunnel_init(struct net_device *dev)
@@ -841,10 +861,11 @@ static int ipip_tunnel_init(struct net_device *dev)
 	return 0;
 }
 
-static int __init ipip_fb_tunnel_init(struct net_device *dev)
+static int ipip_fb_tunnel_init(struct net_device *dev)
 {
 	struct ip_tunnel *tunnel = netdev_priv(dev);
 	struct iphdr *iph = &tunnel->parms.iph;
+	struct ipip_net *ipn = net_generic(dev_net(dev), ipip_net_id);
 
 	tunnel->dev = dev;
 	strcpy(tunnel->parms.name, dev->name);
@@ -854,7 +875,7 @@ static int __init ipip_fb_tunnel_init(struct net_device *dev)
 	iph->ihl		= 5;
 
 	dev_hold(dev);
-	tunnels_wc[0]		= tunnel;
+	ipn->tunnels_wc[0]	= tunnel;
 	return 0;
 }
 
@@ -867,50 +888,98 @@ static struct xfrm_tunnel ipip_handler = {
 static char banner[] __initdata =
 	KERN_INFO "IPv4 over IPv4 tunneling driver\n";
 
-static int __init ipip_init(void)
+static void ipip_destroy_tunnels(struct ipip_net *ipn)
+{
+	int prio;
+
+	for (prio = 1; prio < 4; prio++) {
+		int h;
+		for (h = 0; h < HASH_SIZE; h++) {
+			struct ip_tunnel *t;
+			while ((t = ipn->tunnels[prio][h]) != NULL)
+				unregister_netdevice(t->dev);
+		}
+	}
+}
+
+static int ipip_init_net(struct net *net)
 {
 	int err;
+	struct ipip_net *ipn;
 
-	printk(banner);
+	err = -ENOMEM;
+	ipn = kzalloc(sizeof(struct ipip_net), GFP_KERNEL);
+	if (ipn == NULL)
+		goto err_alloc;
 
-	if (xfrm4_tunnel_register(&ipip_handler, AF_INET)) {
-		printk(KERN_INFO "ipip init: can't register tunnel\n");
-		return -EAGAIN;
-	}
+	err = net_assign_generic(net, ipip_net_id, ipn);
+	if (err < 0)
+		goto err_assign;
 
-	ipip_fb_tunnel_dev = alloc_netdev(sizeof(struct ip_tunnel),
+	ipn->tunnels[0] = ipn->tunnels_wc;
+	ipn->tunnels[1] = ipn->tunnels_l;
+	ipn->tunnels[2] = ipn->tunnels_r;
+	ipn->tunnels[3] = ipn->tunnels_r_l;
+
+	ipn->fb_tunnel_dev = alloc_netdev(sizeof(struct ip_tunnel),
 					   "tunl0",
 					   ipip_tunnel_setup);
-	if (!ipip_fb_tunnel_dev) {
+	if (!ipn->fb_tunnel_dev) {
 		err = -ENOMEM;
-		goto err1;
+		goto err_alloc_dev;
 	}
 
-	ipip_fb_tunnel_dev->init = ipip_fb_tunnel_init;
+	ipn->fb_tunnel_dev->init = ipip_fb_tunnel_init;
+	dev_net_set(ipn->fb_tunnel_dev, net);
+
+	if ((err = register_netdev(ipn->fb_tunnel_dev)))
+		goto err_reg_dev;
+
+	return 0;
 
-	if ((err = register_netdev(ipip_fb_tunnel_dev)))
-		goto err2;
- out:
+err_reg_dev:
+	free_netdev(ipn->fb_tunnel_dev);
+err_alloc_dev:
+	/* nothing */
+err_assign:
+	kfree(ipn);
+err_alloc:
 	return err;
- err2:
-	free_netdev(ipip_fb_tunnel_dev);
- err1:
-	xfrm4_tunnel_deregister(&ipip_handler, AF_INET);
-	goto out;
 }
 
-static void __exit ipip_destroy_tunnels(void)
+static void ipip_exit_net(struct net *net)
 {
-	int prio;
+	struct ipip_net *ipn;
 
-	for (prio = 1; prio < 4; prio++) {
-		int h;
-		for (h = 0; h < HASH_SIZE; h++) {
-			struct ip_tunnel *t;
-			while ((t = tunnels[prio][h]) != NULL)
-				unregister_netdevice(t->dev);
-		}
+	ipn = net_generic(net, ipip_net_id);
+	rtnl_lock();
+	ipip_destroy_tunnels(ipn);
+	unregister_netdevice(ipn->fb_tunnel_dev);
+	rtnl_unlock();
+	kfree(ipn);
+}
+
+static struct pernet_operations ipip_net_ops = {
+	.init = ipip_init_net,
+	.exit = ipip_exit_net,
+};
+
+static int __init ipip_init(void)
+{
+	int err;
+
+	printk(banner);
+
+	if (xfrm4_tunnel_register(&ipip_handler, AF_INET)) {
+		printk(KERN_INFO "ipip init: can't register tunnel\n");
+		return -EAGAIN;
 	}
+
+	err = register_pernet_gen_device(&ipip_net_id, &ipip_net_ops);
+	if (err)
+		xfrm4_tunnel_deregister(&ipip_handler, AF_INET);
+
+	return err;
 }
 
 static void __exit ipip_fini(void)
@@ -918,10 +987,7 @@ static void __exit ipip_fini(void)
 	if (xfrm4_tunnel_deregister(&ipip_handler, AF_INET))
 		printk(KERN_INFO "ipip close: can't deregister tunnel\n");
 
-	rtnl_lock();
-	ipip_destroy_tunnels();
-	unregister_netdevice(ipip_fb_tunnel_dev);
-	rtnl_unlock();
+	unregister_pernet_gen_device(ipip_net_id, &ipip_net_ops);
 }
 
 module_init(ipip_init);
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index a94f52c207a7..11700a4dcd95 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -849,7 +849,7 @@ static void mrtsock_destruct(struct sock *sk)
 {
 	rtnl_lock();
 	if (sk == mroute_socket) {
-		IPV4_DEVCONF_ALL(sk->sk_net, MC_FORWARDING)--;
+		IPV4_DEVCONF_ALL(sock_net(sk), MC_FORWARDING)--;
 
 		write_lock_bh(&mrt_lock);
 		mroute_socket=NULL;
@@ -898,7 +898,7 @@ int ip_mroute_setsockopt(struct sock *sk,int optname,char __user *optval,int opt
 			mroute_socket=sk;
 			write_unlock_bh(&mrt_lock);
 
-			IPV4_DEVCONF_ALL(sk->sk_net, MC_FORWARDING)++;
+			IPV4_DEVCONF_ALL(sock_net(sk), MC_FORWARDING)++;
 		}
 		rtnl_unlock();
 		return ret;
@@ -1089,7 +1089,7 @@ static int ipmr_device_event(struct notifier_block *this, unsigned long event, v
 	struct vif_device *v;
 	int ct;
 
-	if (dev->nd_net != &init_net)
+	if (dev_net(dev) != &init_net)
 		return NOTIFY_DONE;
 
 	if (event != NETDEV_UNREGISTER)
@@ -1283,7 +1283,7 @@ static int ip_mr_forward(struct sk_buff *skb, struct mfc_cache *cache, int local
 	if (vif_table[vif].dev != skb->dev) {
 		int true_vifi;
 
-		if (((struct rtable*)skb->dst)->fl.iif == 0) {
+		if (skb->rtable->fl.iif == 0) {
 			/* It is our own packet, looped back.
 			   Very complicated situation...
 
@@ -1357,7 +1357,7 @@ dont_forward:
 int ip_mr_input(struct sk_buff *skb)
 {
 	struct mfc_cache *cache;
-	int local = ((struct rtable*)skb->dst)->rt_flags&RTCF_LOCAL;
+	int local = skb->rtable->rt_flags&RTCF_LOCAL;
 
 	/* Packet is looped back after forward, it should not be
 	   forwarded second time, but still can be delivered locally.
@@ -1594,7 +1594,7 @@ int ipmr_get_route(struct sk_buff *skb, struct rtmsg *rtm, int nowait)
 {
 	int err;
 	struct mfc_cache *cache;
-	struct rtable *rt = (struct rtable*)skb->dst;
+	struct rtable *rt = skb->rtable;
 
 	read_lock(&mrt_lock);
 	cache = ipmr_cache_find(rt->rt_src, rt->rt_dst);
diff --git a/net/ipv4/ipvs/ip_vs_proto_tcp.c b/net/ipv4/ipvs/ip_vs_proto_tcp.c
index 12dc0d640b6d..620e40ff79a9 100644
--- a/net/ipv4/ipvs/ip_vs_proto_tcp.c
+++ b/net/ipv4/ipvs/ip_vs_proto_tcp.c
@@ -550,7 +550,7 @@ tcp_app_conn_bind(struct ip_vs_conn *cp)
 
 			IP_VS_DBG(9, "%s: Binding conn %u.%u.%u.%u:%u->"
 				  "%u.%u.%u.%u:%u to app %s on port %u\n",
-				  __FUNCTION__,
+				  __func__,
 				  NIPQUAD(cp->caddr), ntohs(cp->cport),
 				  NIPQUAD(cp->vaddr), ntohs(cp->vport),
 				  inc->name, ntohs(inc->port));
diff --git a/net/ipv4/ipvs/ip_vs_proto_udp.c b/net/ipv4/ipvs/ip_vs_proto_udp.c
index 1fa7b330b9ac..1caa2908373f 100644
--- a/net/ipv4/ipvs/ip_vs_proto_udp.c
+++ b/net/ipv4/ipvs/ip_vs_proto_udp.c
@@ -344,7 +344,7 @@ static int udp_app_conn_bind(struct ip_vs_conn *cp)
 
 			IP_VS_DBG(9, "%s: Binding conn %u.%u.%u.%u:%u->"
 				  "%u.%u.%u.%u:%u to app %s on port %u\n",
-				  __FUNCTION__,
+				  __func__,
 				  NIPQUAD(cp->caddr), ntohs(cp->cport),
 				  NIPQUAD(cp->vaddr), ntohs(cp->vport),
 				  inc->name, ntohs(inc->port));
diff --git a/net/ipv4/ipvs/ip_vs_sync.c b/net/ipv4/ipvs/ip_vs_sync.c
index 948378d0a755..69c56663cc9a 100644
--- a/net/ipv4/ipvs/ip_vs_sync.c
+++ b/net/ipv4/ipvs/ip_vs_sync.c
@@ -916,7 +916,7 @@ int start_sync_thread(int state, char *mcast_ifn, __u8 syncid)
 	if (!tinfo)
 		return -ENOMEM;
 
-	IP_VS_DBG(7, "%s: pid %d\n", __FUNCTION__, task_pid_nr(current));
+	IP_VS_DBG(7, "%s: pid %d\n", __func__, task_pid_nr(current));
 	IP_VS_DBG(7, "Each ip_vs_sync_conn entry need %Zd bytes\n",
 		  sizeof(struct ip_vs_sync_conn));
 
@@ -956,7 +956,7 @@ int stop_sync_thread(int state)
 	    (state == IP_VS_STATE_BACKUP && !sync_backup_pid))
 		return -ESRCH;
 
-	IP_VS_DBG(7, "%s: pid %d\n", __FUNCTION__, task_pid_nr(current));
+	IP_VS_DBG(7, "%s: pid %d\n", __func__, task_pid_nr(current));
 	IP_VS_INFO("stopping sync thread %d ...\n",
 		   (state == IP_VS_STATE_MASTER) ?
 		   sync_master_pid : sync_backup_pid);
diff --git a/net/ipv4/netfilter.c b/net/ipv4/netfilter.c
index 9a904c6c0dc8..f8edacdf991d 100644
--- a/net/ipv4/netfilter.c
+++ b/net/ipv4/netfilter.c
@@ -182,21 +182,44 @@ __sum16 nf_ip_checksum(struct sk_buff *skb, unsigned int hook,
 	}
 	return csum;
 }
-
 EXPORT_SYMBOL(nf_ip_checksum);
 
+static __sum16 nf_ip_checksum_partial(struct sk_buff *skb, unsigned int hook,
+				      unsigned int dataoff, unsigned int len,
+				      u_int8_t protocol)
+{
+	const struct iphdr *iph = ip_hdr(skb);
+	__sum16 csum = 0;
+
+	switch (skb->ip_summed) {
+	case CHECKSUM_COMPLETE:
+		if (len == skb->len - dataoff)
+			return nf_ip_checksum(skb, hook, dataoff, protocol);
+		/* fall through */
+	case CHECKSUM_NONE:
+		skb->csum = csum_tcpudp_nofold(iph->saddr, iph->daddr, protocol,
+					       skb->len - dataoff, 0);
+		skb->ip_summed = CHECKSUM_NONE;
+		csum = __skb_checksum_complete_head(skb, dataoff + len);
+		if (!csum)
+			skb->ip_summed = CHECKSUM_UNNECESSARY;
+	}
+	return csum;
+}
+
 static int nf_ip_route(struct dst_entry **dst, struct flowi *fl)
 {
 	return ip_route_output_key(&init_net, (struct rtable **)dst, fl);
 }
 
 static const struct nf_afinfo nf_ip_afinfo = {
-	.family		= AF_INET,
-	.checksum	= nf_ip_checksum,
-	.route		= nf_ip_route,
-	.saveroute	= nf_ip_saveroute,
-	.reroute	= nf_ip_reroute,
-	.route_key_size	= sizeof(struct ip_rt_info),
+	.family			= AF_INET,
+	.checksum		= nf_ip_checksum,
+	.checksum_partial	= nf_ip_checksum_partial,
+	.route			= nf_ip_route,
+	.saveroute		= nf_ip_saveroute,
+	.reroute		= nf_ip_reroute,
+	.route_key_size		= sizeof(struct ip_rt_info),
 };
 
 static int ipv4_netfilter_init(void)
diff --git a/net/ipv4/netfilter/Kconfig b/net/ipv4/netfilter/Kconfig
index 9a077cb24798..0c95cd5872f3 100644
--- a/net/ipv4/netfilter/Kconfig
+++ b/net/ipv4/netfilter/Kconfig
@@ -241,10 +241,25 @@ config NF_NAT_SNMP_BASIC
 #           <expr> '&&' <expr>                   (6)
 #
 # (6) Returns the result of min(/expr/, /expr/).
+config NF_NAT_PROTO_DCCP
+	tristate
+	depends on NF_NAT && NF_CT_PROTO_DCCP
+	default NF_NAT && NF_CT_PROTO_DCCP
+
 config NF_NAT_PROTO_GRE
 	tristate
 	depends on NF_NAT && NF_CT_PROTO_GRE
 
+config NF_NAT_PROTO_UDPLITE
+	tristate
+	depends on NF_NAT && NF_CT_PROTO_UDPLITE
+	default NF_NAT && NF_CT_PROTO_UDPLITE
+
+config NF_NAT_PROTO_SCTP
+	tristate
+	default NF_NAT && NF_CT_PROTO_SCTP
+	depends on NF_NAT && NF_CT_PROTO_SCTP
+
 config NF_NAT_FTP
 	tristate
 	depends on IP_NF_IPTABLES && NF_CONNTRACK && NF_NAT
diff --git a/net/ipv4/netfilter/Makefile b/net/ipv4/netfilter/Makefile
index 0c7dc78a62e9..d9b92fbf5579 100644
--- a/net/ipv4/netfilter/Makefile
+++ b/net/ipv4/netfilter/Makefile
@@ -10,7 +10,7 @@ nf_conntrack_ipv4-objs	+= nf_conntrack_l3proto_ipv4_compat.o
 endif
 endif
 
-nf_nat-objs		:= nf_nat_core.o nf_nat_helper.o nf_nat_proto_unknown.o nf_nat_proto_tcp.o nf_nat_proto_udp.o nf_nat_proto_icmp.o
+nf_nat-objs		:= nf_nat_core.o nf_nat_helper.o nf_nat_proto_unknown.o nf_nat_proto_common.o nf_nat_proto_tcp.o nf_nat_proto_udp.o nf_nat_proto_icmp.o
 iptable_nat-objs	:= nf_nat_rule.o nf_nat_standalone.o
 
 # connection tracking
@@ -29,7 +29,10 @@ obj-$(CONFIG_NF_NAT_SNMP_BASIC) += nf_nat_snmp_basic.o
 obj-$(CONFIG_NF_NAT_TFTP) += nf_nat_tftp.o
 
 # NAT protocols (nf_nat)
+obj-$(CONFIG_NF_NAT_PROTO_DCCP) += nf_nat_proto_dccp.o
 obj-$(CONFIG_NF_NAT_PROTO_GRE) += nf_nat_proto_gre.o
+obj-$(CONFIG_NF_NAT_PROTO_UDPLITE) += nf_nat_proto_udplite.o
+obj-$(CONFIG_NF_NAT_PROTO_SCTP) += nf_nat_proto_sctp.o
 
 # generic IP tables 
 obj-$(CONFIG_IP_NF_IPTABLES) += ip_tables.o
diff --git a/net/ipv4/netfilter/arp_tables.c b/net/ipv4/netfilter/arp_tables.c
index a7591ce344d2..03e83a65aec5 100644
--- a/net/ipv4/netfilter/arp_tables.c
+++ b/net/ipv4/netfilter/arp_tables.c
@@ -52,14 +52,14 @@ MODULE_DESCRIPTION("arptables core");
 do {								\
 	if (!(x))						\
 		printk("ARP_NF_ASSERT: %s:%s:%u\n",		\
-		       __FUNCTION__, __FILE__, __LINE__);	\
+		       __func__, __FILE__, __LINE__);	\
 } while(0)
 #else
 #define ARP_NF_ASSERT(x)
 #endif
 
 static inline int arp_devaddr_compare(const struct arpt_devaddr_info *ap,
-				      char *hdr_addr, int len)
+				      const char *hdr_addr, int len)
 {
 	int i, ret;
 
@@ -80,8 +80,8 @@ static inline int arp_packet_match(const struct arphdr *arphdr,
 				   const char *outdev,
 				   const struct arpt_arp *arpinfo)
 {
-	char *arpptr = (char *)(arphdr + 1);
-	char *src_devaddr, *tgt_devaddr;
+	const char *arpptr = (char *)(arphdr + 1);
+	const char *src_devaddr, *tgt_devaddr;
 	__be32 src_ipaddr, tgt_ipaddr;
 	int i, ret;
 
@@ -222,21 +222,18 @@ unsigned int arpt_do_table(struct sk_buff *skb,
 			   unsigned int hook,
 			   const struct net_device *in,
 			   const struct net_device *out,
-			   struct arpt_table *table)
+			   struct xt_table *table)
 {
 	static const char nulldevname[IFNAMSIZ];
 	unsigned int verdict = NF_DROP;
-	struct arphdr *arp;
+	const struct arphdr *arp;
 	bool hotdrop = false;
 	struct arpt_entry *e, *back;
 	const char *indev, *outdev;
 	void *table_base;
-	struct xt_table_info *private;
+	const struct xt_table_info *private;
 
-	/* ARP header, plus 2 device addresses, plus 2 IP addresses.  */
-	if (!pskb_may_pull(skb, (sizeof(struct arphdr) +
-				 (2 * skb->dev->addr_len) +
-				 (2 * sizeof(u32)))))
+	if (!pskb_may_pull(skb, arp_hdr_len(skb->dev)))
 		return NF_DROP;
 
 	indev = in ? in->name : nulldevname;
@@ -355,7 +352,7 @@ static int mark_source_chains(struct xt_table_info *newinfo,
 		e->counters.pcnt = pos;
 
 		for (;;) {
-			struct arpt_standard_target *t
+			const struct arpt_standard_target *t
 				= (void *)arpt_get_target(e);
 			int visited = e->comefrom & (1 << hook);
 
@@ -440,7 +437,7 @@ static int mark_source_chains(struct xt_table_info *newinfo,
 
 static inline int check_entry(struct arpt_entry *e, const char *name)
 {
-	struct arpt_entry_target *t;
+	const struct arpt_entry_target *t;
 
 	if (!arp_checkentry(&e->arp)) {
 		duprintf("arp_tables: arp check failed %p %s.\n", e, name);
@@ -460,7 +457,7 @@ static inline int check_entry(struct arpt_entry *e, const char *name)
 static inline int check_target(struct arpt_entry *e, const char *name)
 {
 	struct arpt_entry_target *t;
-	struct arpt_target *target;
+	struct xt_target *target;
 	int ret;
 
 	t = arpt_get_target(e);
@@ -483,7 +480,7 @@ find_check_entry(struct arpt_entry *e, const char *name, unsigned int size,
 		 unsigned int *i)
 {
 	struct arpt_entry_target *t;
-	struct arpt_target *target;
+	struct xt_target *target;
 	int ret;
 
 	ret = check_entry(e, name);
@@ -709,11 +706,11 @@ static void get_counters(const struct xt_table_info *t,
 	}
 }
 
-static inline struct xt_counters *alloc_counters(struct arpt_table *table)
+static inline struct xt_counters *alloc_counters(struct xt_table *table)
 {
 	unsigned int countersize;
 	struct xt_counters *counters;
-	struct xt_table_info *private = table->private;
+	const struct xt_table_info *private = table->private;
 
 	/* We need atomic snapshot of counters: rest doesn't change
 	 * (other than comefrom, which userspace doesn't care
@@ -734,7 +731,7 @@ static inline struct xt_counters *alloc_counters(struct arpt_table *table)
 }
 
 static int copy_entries_to_user(unsigned int total_size,
-				struct arpt_table *table,
+				struct xt_table *table,
 				void __user *userptr)
 {
 	unsigned int off, num;
@@ -854,7 +851,7 @@ static int compat_table_info(const struct xt_table_info *info,
 static int get_info(struct net *net, void __user *user, int *len, int compat)
 {
 	char name[ARPT_TABLE_MAXNAMELEN];
-	struct arpt_table *t;
+	struct xt_table *t;
 	int ret;
 
 	if (*len != sizeof(struct arpt_getinfo)) {
@@ -875,7 +872,7 @@ static int get_info(struct net *net, void __user *user, int *len, int compat)
 				    "arptable_%s", name);
 	if (t && !IS_ERR(t)) {
 		struct arpt_getinfo info;
-		struct xt_table_info *private = t->private;
+		const struct xt_table_info *private = t->private;
 
 #ifdef CONFIG_COMPAT
 		if (compat) {
@@ -914,7 +911,7 @@ static int get_entries(struct net *net, struct arpt_get_entries __user *uptr,
 {
 	int ret;
 	struct arpt_get_entries get;
-	struct arpt_table *t;
+	struct xt_table *t;
 
 	if (*len < sizeof(get)) {
 		duprintf("get_entries: %u < %Zu\n", *len, sizeof(get));
@@ -930,7 +927,8 @@ static int get_entries(struct net *net, struct arpt_get_entries __user *uptr,
 
 	t = xt_find_table_lock(net, NF_ARP, get.name);
 	if (t && !IS_ERR(t)) {
-		struct xt_table_info *private = t->private;
+		const struct xt_table_info *private = t->private;
+
 		duprintf("t->private->number = %u\n",
 			 private->number);
 		if (get.size == private->size)
@@ -939,7 +937,7 @@ static int get_entries(struct net *net, struct arpt_get_entries __user *uptr,
 		else {
 			duprintf("get_entries: I've got %u not %u!\n",
 				 private->size, get.size);
-			ret = -EINVAL;
+			ret = -EAGAIN;
 		}
 		module_put(t->me);
 		xt_table_unlock(t);
@@ -956,7 +954,7 @@ static int __do_replace(struct net *net, const char *name,
 			void __user *counters_ptr)
 {
 	int ret;
-	struct arpt_table *t;
+	struct xt_table *t;
 	struct xt_table_info *oldinfo;
 	struct xt_counters *counters;
 	void *loc_cpu_old_entry;
@@ -1090,11 +1088,11 @@ static int do_add_counters(struct net *net, void __user *user, unsigned int len,
 	struct xt_counters_info tmp;
 	struct xt_counters *paddc;
 	unsigned int num_counters;
-	char *name;
+	const char *name;
 	int size;
 	void *ptmp;
-	struct arpt_table *t;
-	struct xt_table_info *private;
+	struct xt_table *t;
+	const struct xt_table_info *private;
 	int ret = 0;
 	void *loc_cpu_entry;
 #ifdef CONFIG_COMPAT
@@ -1499,11 +1497,11 @@ static int compat_do_arpt_set_ctl(struct sock *sk, int cmd, void __user *user,
 
 	switch (cmd) {
 	case ARPT_SO_SET_REPLACE:
-		ret = compat_do_replace(sk->sk_net, user, len);
+		ret = compat_do_replace(sock_net(sk), user, len);
 		break;
 
 	case ARPT_SO_SET_ADD_COUNTERS:
-		ret = do_add_counters(sk->sk_net, user, len, 1);
+		ret = do_add_counters(sock_net(sk), user, len, 1);
 		break;
 
 	default:
@@ -1557,11 +1555,11 @@ out:
 }
 
 static int compat_copy_entries_to_user(unsigned int total_size,
-				       struct arpt_table *table,
+				       struct xt_table *table,
 				       void __user *userptr)
 {
 	struct xt_counters *counters;
-	struct xt_table_info *private = table->private;
+	const struct xt_table_info *private = table->private;
 	void __user *pos;
 	unsigned int size;
 	int ret = 0;
@@ -1595,7 +1593,7 @@ static int compat_get_entries(struct net *net,
 {
 	int ret;
 	struct compat_arpt_get_entries get;
-	struct arpt_table *t;
+	struct xt_table *t;
 
 	if (*len < sizeof(get)) {
 		duprintf("compat_get_entries: %u < %zu\n", *len, sizeof(get));
@@ -1612,7 +1610,7 @@ static int compat_get_entries(struct net *net,
 	xt_compat_lock(NF_ARP);
 	t = xt_find_table_lock(net, NF_ARP, get.name);
 	if (t && !IS_ERR(t)) {
-		struct xt_table_info *private = t->private;
+		const struct xt_table_info *private = t->private;
 		struct xt_table_info info;
 
 		duprintf("t->private->number = %u\n", private->number);
@@ -1623,7 +1621,7 @@ static int compat_get_entries(struct net *net,
 		} else if (!ret) {
 			duprintf("compat_get_entries: I've got %u not %u!\n",
 				 private->size, get.size);
-			ret = -EINVAL;
+			ret = -EAGAIN;
 		}
 		xt_compat_flush_offsets(NF_ARP);
 		module_put(t->me);
@@ -1647,10 +1645,10 @@ static int compat_do_arpt_get_ctl(struct sock *sk, int cmd, void __user *user,
 
 	switch (cmd) {
 	case ARPT_SO_GET_INFO:
-		ret = get_info(sk->sk_net, user, len, 1);
+		ret = get_info(sock_net(sk), user, len, 1);
 		break;
 	case ARPT_SO_GET_ENTRIES:
-		ret = compat_get_entries(sk->sk_net, user, len);
+		ret = compat_get_entries(sock_net(sk), user, len);
 		break;
 	default:
 		ret = do_arpt_get_ctl(sk, cmd, user, len);
@@ -1668,11 +1666,11 @@ static int do_arpt_set_ctl(struct sock *sk, int cmd, void __user *user, unsigned
 
 	switch (cmd) {
 	case ARPT_SO_SET_REPLACE:
-		ret = do_replace(sk->sk_net, user, len);
+		ret = do_replace(sock_net(sk), user, len);
 		break;
 
 	case ARPT_SO_SET_ADD_COUNTERS:
-		ret = do_add_counters(sk->sk_net, user, len, 0);
+		ret = do_add_counters(sock_net(sk), user, len, 0);
 		break;
 
 	default:
@@ -1692,11 +1690,11 @@ static int do_arpt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len
 
 	switch (cmd) {
 	case ARPT_SO_GET_INFO:
-		ret = get_info(sk->sk_net, user, len, 0);
+		ret = get_info(sock_net(sk), user, len, 0);
 		break;
 
 	case ARPT_SO_GET_ENTRIES:
-		ret = get_entries(sk->sk_net, user, len);
+		ret = get_entries(sock_net(sk), user, len);
 		break;
 
 	case ARPT_SO_GET_REVISION_TARGET: {
@@ -1725,9 +1723,8 @@ static int do_arpt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len
 	return ret;
 }
 
-struct arpt_table *arpt_register_table(struct net *net,
-				       struct arpt_table *table,
-				       const struct arpt_replace *repl)
+struct xt_table *arpt_register_table(struct net *net, struct xt_table *table,
+				     const struct arpt_replace *repl)
 {
 	int ret;
 	struct xt_table_info *newinfo;
@@ -1769,7 +1766,7 @@ out:
 	return ERR_PTR(ret);
 }
 
-void arpt_unregister_table(struct arpt_table *table)
+void arpt_unregister_table(struct xt_table *table)
 {
 	struct xt_table_info *private;
 	void *loc_cpu_entry;
@@ -1787,7 +1784,7 @@ void arpt_unregister_table(struct arpt_table *table)
 }
 
 /* The built-in targets: standard (NULL) and error. */
-static struct arpt_target arpt_standard_target __read_mostly = {
+static struct xt_target arpt_standard_target __read_mostly = {
 	.name		= ARPT_STANDARD_TARGET,
 	.targetsize	= sizeof(int),
 	.family		= NF_ARP,
@@ -1798,7 +1795,7 @@ static struct arpt_target arpt_standard_target __read_mostly = {
 #endif
 };
 
-static struct arpt_target arpt_error_target __read_mostly = {
+static struct xt_target arpt_error_target __read_mostly = {
 	.name		= ARPT_ERROR_TARGET,
 	.target		= arpt_error,
 	.targetsize	= ARPT_FUNCTION_MAXNAMELEN,
diff --git a/net/ipv4/netfilter/arpt_mangle.c b/net/ipv4/netfilter/arpt_mangle.c
index 3f4222b0a803..a385959d2655 100644
--- a/net/ipv4/netfilter/arpt_mangle.c
+++ b/net/ipv4/netfilter/arpt_mangle.c
@@ -15,7 +15,7 @@ target(struct sk_buff *skb,
        const void *targinfo)
 {
 	const struct arpt_mangle *mangle = targinfo;
-	struct arphdr *arp;
+	const struct arphdr *arp;
 	unsigned char *arpptr;
 	int pln, hln;
 
@@ -73,8 +73,9 @@ checkentry(const char *tablename, const void *e, const struct xt_target *target,
 	return true;
 }
 
-static struct arpt_target arpt_mangle_reg __read_mostly = {
+static struct xt_target arpt_mangle_reg __read_mostly = {
 	.name		= "mangle",
+	.family		= NF_ARP,
 	.target		= target,
 	.targetsize	= sizeof(struct arpt_mangle),
 	.checkentry	= checkentry,
@@ -83,15 +84,12 @@ static struct arpt_target arpt_mangle_reg __read_mostly = {
 
 static int __init arpt_mangle_init(void)
 {
-	if (arpt_register_target(&arpt_mangle_reg))
-		return -EINVAL;
-
-	return 0;
+	return xt_register_target(&arpt_mangle_reg);
 }
 
 static void __exit arpt_mangle_fini(void)
 {
-	arpt_unregister_target(&arpt_mangle_reg);
+	xt_unregister_target(&arpt_mangle_reg);
 }
 
 module_init(arpt_mangle_init);
diff --git a/net/ipv4/netfilter/arptable_filter.c b/net/ipv4/netfilter/arptable_filter.c
index 4e9c496a30c2..3be4d07e7ed9 100644
--- a/net/ipv4/netfilter/arptable_filter.c
+++ b/net/ipv4/netfilter/arptable_filter.c
@@ -45,10 +45,10 @@ static struct
 	.term = ARPT_ERROR_INIT,
 };
 
-static struct arpt_table packet_filter = {
+static struct xt_table packet_filter = {
 	.name		= "filter",
 	.valid_hooks	= FILTER_VALID_HOOKS,
-	.lock		= RW_LOCK_UNLOCKED,
+	.lock		= __RW_LOCK_UNLOCKED(packet_filter.lock),
 	.private	= NULL,
 	.me		= THIS_MODULE,
 	.af		= NF_ARP,
@@ -70,18 +70,21 @@ static struct nf_hook_ops arpt_ops[] __read_mostly = {
 		.owner		= THIS_MODULE,
 		.pf		= NF_ARP,
 		.hooknum	= NF_ARP_IN,
+		.priority	= NF_IP_PRI_FILTER,
 	},
 	{
 		.hook		= arpt_hook,
 		.owner		= THIS_MODULE,
 		.pf		= NF_ARP,
 		.hooknum	= NF_ARP_OUT,
+		.priority	= NF_IP_PRI_FILTER,
 	},
 	{
 		.hook		= arpt_hook,
 		.owner		= THIS_MODULE,
 		.pf		= NF_ARP,
 		.hooknum	= NF_ARP_FORWARD,
+		.priority	= NF_IP_PRI_FILTER,
 	},
 };
 
diff --git a/net/ipv4/netfilter/ip_queue.c b/net/ipv4/netfilter/ip_queue.c
index 4dc162894cb2..719be29f7506 100644
--- a/net/ipv4/netfilter/ip_queue.c
+++ b/net/ipv4/netfilter/ip_queue.c
@@ -481,7 +481,7 @@ ipq_rcv_dev_event(struct notifier_block *this,
 {
 	struct net_device *dev = ptr;
 
-	if (dev->nd_net != &init_net)
+	if (dev_net(dev) != &init_net)
 		return NOTIFY_DONE;
 
 	/* Drop any packets associated with the downed device */
diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c
index 600737f122d2..4e7c719445c2 100644
--- a/net/ipv4/netfilter/ip_tables.c
+++ b/net/ipv4/netfilter/ip_tables.c
@@ -53,7 +53,7 @@ MODULE_DESCRIPTION("IPv4 packet filter");
 do {								\
 	if (!(x))						\
 		printk("IP_NF_ASSERT: %s:%s:%u\n",		\
-		       __FUNCTION__, __FILE__, __LINE__);	\
+		       __func__, __FILE__, __LINE__);	\
 } while(0)
 #else
 #define IP_NF_ASSERT(x)
@@ -296,7 +296,7 @@ static void trace_packet(struct sk_buff *skb,
 			 struct ipt_entry *e)
 {
 	void *table_base;
-	struct ipt_entry *root;
+	const struct ipt_entry *root;
 	char *hookname, *chainname, *comment;
 	unsigned int rulenum = 0;
 
@@ -327,7 +327,7 @@ ipt_do_table(struct sk_buff *skb,
 {
 	static const char nulldevname[IFNAMSIZ] __attribute__((aligned(sizeof(long))));
 	u_int16_t offset;
-	struct iphdr *ip;
+	const struct iphdr *ip;
 	u_int16_t datalen;
 	bool hotdrop = false;
 	/* Initializing verdict to NF_DROP keeps gcc happy. */
@@ -926,7 +926,7 @@ static struct xt_counters * alloc_counters(struct xt_table *table)
 {
 	unsigned int countersize;
 	struct xt_counters *counters;
-	struct xt_table_info *private = table->private;
+	const struct xt_table_info *private = table->private;
 
 	/* We need atomic snapshot of counters: rest doesn't change
 	   (other than comefrom, which userspace doesn't care
@@ -953,9 +953,9 @@ copy_entries_to_user(unsigned int total_size,
 	unsigned int off, num;
 	struct ipt_entry *e;
 	struct xt_counters *counters;
-	struct xt_table_info *private = table->private;
+	const struct xt_table_info *private = table->private;
 	int ret = 0;
-	void *loc_cpu_entry;
+	const void *loc_cpu_entry;
 
 	counters = alloc_counters(table);
 	if (IS_ERR(counters))
@@ -975,8 +975,8 @@ copy_entries_to_user(unsigned int total_size,
 	/* ... then go back and fix counters and names */
 	for (off = 0, num = 0; off < total_size; off += e->next_offset, num++){
 		unsigned int i;
-		struct ipt_entry_match *m;
-		struct ipt_entry_target *t;
+		const struct ipt_entry_match *m;
+		const struct ipt_entry_target *t;
 
 		e = (struct ipt_entry *)(loc_cpu_entry + off);
 		if (copy_to_user(userptr + off
@@ -1116,7 +1116,7 @@ static int get_info(struct net *net, void __user *user, int *len, int compat)
 				    "iptable_%s", name);
 	if (t && !IS_ERR(t)) {
 		struct ipt_getinfo info;
-		struct xt_table_info *private = t->private;
+		const struct xt_table_info *private = t->private;
 
 #ifdef CONFIG_COMPAT
 		if (compat) {
@@ -1172,7 +1172,7 @@ get_entries(struct net *net, struct ipt_get_entries __user *uptr, int *len)
 
 	t = xt_find_table_lock(net, AF_INET, get.name);
 	if (t && !IS_ERR(t)) {
-		struct xt_table_info *private = t->private;
+		const struct xt_table_info *private = t->private;
 		duprintf("t->private->number = %u\n", private->number);
 		if (get.size == private->size)
 			ret = copy_entries_to_user(private->size,
@@ -1180,7 +1180,7 @@ get_entries(struct net *net, struct ipt_get_entries __user *uptr, int *len)
 		else {
 			duprintf("get_entries: I've got %u not %u!\n",
 				 private->size, get.size);
-			ret = -EINVAL;
+			ret = -EAGAIN;
 		}
 		module_put(t->me);
 		xt_table_unlock(t);
@@ -1337,11 +1337,11 @@ do_add_counters(struct net *net, void __user *user, unsigned int len, int compat
 	struct xt_counters_info tmp;
 	struct xt_counters *paddc;
 	unsigned int num_counters;
-	char *name;
+	const char *name;
 	int size;
 	void *ptmp;
 	struct xt_table *t;
-	struct xt_table_info *private;
+	const struct xt_table_info *private;
 	int ret = 0;
 	void *loc_cpu_entry;
 #ifdef CONFIG_COMPAT
@@ -1852,11 +1852,11 @@ compat_do_ipt_set_ctl(struct sock *sk,	int cmd, void __user *user,
 
 	switch (cmd) {
 	case IPT_SO_SET_REPLACE:
-		ret = compat_do_replace(sk->sk_net, user, len);
+		ret = compat_do_replace(sock_net(sk), user, len);
 		break;
 
 	case IPT_SO_SET_ADD_COUNTERS:
-		ret = do_add_counters(sk->sk_net, user, len, 1);
+		ret = do_add_counters(sock_net(sk), user, len, 1);
 		break;
 
 	default:
@@ -1878,11 +1878,11 @@ compat_copy_entries_to_user(unsigned int total_size, struct xt_table *table,
 			    void __user *userptr)
 {
 	struct xt_counters *counters;
-	struct xt_table_info *private = table->private;
+	const struct xt_table_info *private = table->private;
 	void __user *pos;
 	unsigned int size;
 	int ret = 0;
-	void *loc_cpu_entry;
+	const void *loc_cpu_entry;
 	unsigned int i = 0;
 
 	counters = alloc_counters(table);
@@ -1929,7 +1929,7 @@ compat_get_entries(struct net *net, struct compat_ipt_get_entries __user *uptr,
 	xt_compat_lock(AF_INET);
 	t = xt_find_table_lock(net, AF_INET, get.name);
 	if (t && !IS_ERR(t)) {
-		struct xt_table_info *private = t->private;
+		const struct xt_table_info *private = t->private;
 		struct xt_table_info info;
 		duprintf("t->private->number = %u\n", private->number);
 		ret = compat_table_info(private, &info);
@@ -1939,7 +1939,7 @@ compat_get_entries(struct net *net, struct compat_ipt_get_entries __user *uptr,
 		} else if (!ret) {
 			duprintf("compat_get_entries: I've got %u not %u!\n",
 				 private->size, get.size);
-			ret = -EINVAL;
+			ret = -EAGAIN;
 		}
 		xt_compat_flush_offsets(AF_INET);
 		module_put(t->me);
@@ -1963,10 +1963,10 @@ compat_do_ipt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
 
 	switch (cmd) {
 	case IPT_SO_GET_INFO:
-		ret = get_info(sk->sk_net, user, len, 1);
+		ret = get_info(sock_net(sk), user, len, 1);
 		break;
 	case IPT_SO_GET_ENTRIES:
-		ret = compat_get_entries(sk->sk_net, user, len);
+		ret = compat_get_entries(sock_net(sk), user, len);
 		break;
 	default:
 		ret = do_ipt_get_ctl(sk, cmd, user, len);
@@ -1985,11 +1985,11 @@ do_ipt_set_ctl(struct sock *sk, int cmd, void __user *user, unsigned int len)
 
 	switch (cmd) {
 	case IPT_SO_SET_REPLACE:
-		ret = do_replace(sk->sk_net, user, len);
+		ret = do_replace(sock_net(sk), user, len);
 		break;
 
 	case IPT_SO_SET_ADD_COUNTERS:
-		ret = do_add_counters(sk->sk_net, user, len, 0);
+		ret = do_add_counters(sock_net(sk), user, len, 0);
 		break;
 
 	default:
@@ -2010,11 +2010,11 @@ do_ipt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
 
 	switch (cmd) {
 	case IPT_SO_GET_INFO:
-		ret = get_info(sk->sk_net, user, len, 0);
+		ret = get_info(sock_net(sk), user, len, 0);
 		break;
 
 	case IPT_SO_GET_ENTRIES:
-		ret = get_entries(sk->sk_net, user, len);
+		ret = get_entries(sock_net(sk), user, len);
 		break;
 
 	case IPT_SO_GET_REVISION_MATCH:
@@ -2130,7 +2130,8 @@ icmp_match(const struct sk_buff *skb,
 	   unsigned int protoff,
 	   bool *hotdrop)
 {
-	struct icmphdr _icmph, *ic;
+	const struct icmphdr *ic;
+	struct icmphdr _icmph;
 	const struct ipt_icmp *icmpinfo = matchinfo;
 
 	/* Must not be a fragment. */
diff --git a/net/ipv4/netfilter/ipt_CLUSTERIP.c b/net/ipv4/netfilter/ipt_CLUSTERIP.c
index a12dd329e208..22d8e7cd9197 100644
--- a/net/ipv4/netfilter/ipt_CLUSTERIP.c
+++ b/net/ipv4/netfilter/ipt_CLUSTERIP.c
@@ -144,7 +144,7 @@ clusterip_config_init_nodelist(struct clusterip_config *c,
 }
 
 static struct clusterip_config *
-clusterip_config_init(struct ipt_clusterip_tgt_info *i, __be32 ip,
+clusterip_config_init(const struct ipt_clusterip_tgt_info *i, __be32 ip,
 			struct net_device *dev)
 {
 	struct clusterip_config *c;
@@ -333,7 +333,7 @@ clusterip_tg(struct sk_buff *skb, const struct net_device *in,
 	}
 
 #ifdef DEBUG
-	DUMP_TUPLE(&ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple);
+	nf_ct_dump_tuple_ip(&ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple);
 #endif
 	pr_debug("hash=%u ct_hash=%u ", hash, ct->mark);
 	if (!clusterip_responsible(cipinfo->config, hash)) {
@@ -418,7 +418,7 @@ clusterip_tg_check(const char *tablename, const void *e_void,
 /* drop reference count of cluster config when rule is deleted */
 static void clusterip_tg_destroy(const struct xt_target *target, void *targinfo)
 {
-	struct ipt_clusterip_tgt_info *cipinfo = targinfo;
+	const struct ipt_clusterip_tgt_info *cipinfo = targinfo;
 
 	/* if no more entries are referencing the config, remove it
 	 * from the list and destroy the proc entry */
@@ -567,7 +567,7 @@ struct clusterip_seq_position {
 
 static void *clusterip_seq_start(struct seq_file *s, loff_t *pos)
 {
-	struct proc_dir_entry *pde = s->private;
+	const struct proc_dir_entry *pde = s->private;
 	struct clusterip_config *c = pde->data;
 	unsigned int weight;
 	u_int32_t local_nodes;
@@ -594,7 +594,7 @@ static void *clusterip_seq_start(struct seq_file *s, loff_t *pos)
 
 static void *clusterip_seq_next(struct seq_file *s, void *v, loff_t *pos)
 {
-	struct clusterip_seq_position *idx = (struct clusterip_seq_position *)v;
+	struct clusterip_seq_position *idx = v;
 
 	*pos = ++idx->pos;
 	if (*pos >= idx->weight) {
@@ -613,7 +613,7 @@ static void clusterip_seq_stop(struct seq_file *s, void *v)
 
 static int clusterip_seq_show(struct seq_file *s, void *v)
 {
-	struct clusterip_seq_position *idx = (struct clusterip_seq_position *)v;
+	struct clusterip_seq_position *idx = v;
 
 	if (idx->pos != 0)
 		seq_putc(s, ',');
@@ -669,7 +669,7 @@ static ssize_t clusterip_proc_write(struct file *file, const char __user *input,
 {
 #define PROC_WRITELEN	10
 	char buffer[PROC_WRITELEN+1];
-	struct proc_dir_entry *pde = PDE(file->f_path.dentry->d_inode);
+	const struct proc_dir_entry *pde = PDE(file->f_path.dentry->d_inode);
 	struct clusterip_config *c = pde->data;
 	unsigned long nodenum;
 
diff --git a/net/ipv4/netfilter/ipt_ECN.c b/net/ipv4/netfilter/ipt_ECN.c
index 21395bc2b27f..d60139c134ca 100644
--- a/net/ipv4/netfilter/ipt_ECN.c
+++ b/net/ipv4/netfilter/ipt_ECN.c
@@ -100,7 +100,7 @@ ecn_tg_check(const char *tablename, const void *e_void,
              const struct xt_target *target, void *targinfo,
              unsigned int hook_mask)
 {
-	const struct ipt_ECN_info *einfo = (struct ipt_ECN_info *)targinfo;
+	const struct ipt_ECN_info *einfo = targinfo;
 	const struct ipt_entry *e = e_void;
 
 	if (einfo->operation & IPT_ECN_OP_MASK) {
diff --git a/net/ipv4/netfilter/ipt_LOG.c b/net/ipv4/netfilter/ipt_LOG.c
index b38d7850f506..0af14137137b 100644
--- a/net/ipv4/netfilter/ipt_LOG.c
+++ b/net/ipv4/netfilter/ipt_LOG.c
@@ -76,7 +76,8 @@ static void dump_packet(const struct nf_loginfo *info,
 
 	if ((logflags & IPT_LOG_IPOPT)
 	    && ih->ihl * 4 > sizeof(struct iphdr)) {
-		unsigned char _opt[4 * 15 - sizeof(struct iphdr)], *op;
+		const unsigned char *op;
+		unsigned char _opt[4 * 15 - sizeof(struct iphdr)];
 		unsigned int i, optsize;
 
 		optsize = ih->ihl * 4 - sizeof(struct iphdr);
@@ -338,12 +339,16 @@ static void dump_packet(const struct nf_loginfo *info,
 	if ((logflags & IPT_LOG_UID) && !iphoff && skb->sk) {
 		read_lock_bh(&skb->sk->sk_callback_lock);
 		if (skb->sk->sk_socket && skb->sk->sk_socket->file)
-			printk("UID=%u GID=%u",
+			printk("UID=%u GID=%u ",
 				skb->sk->sk_socket->file->f_uid,
 				skb->sk->sk_socket->file->f_gid);
 		read_unlock_bh(&skb->sk->sk_callback_lock);
 	}
 
+	/* Max length: 16 "MARK=0xFFFFFFFF " */
+	if (!iphoff && skb->mark)
+		printk("MARK=0x%x ", skb->mark);
+
 	/* Proto    Max log string length */
 	/* IP:      40+46+6+11+127 = 230 */
 	/* TCP:     10+max(25,20+30+13+9+32+11+127) = 252 */
diff --git a/net/ipv4/netfilter/ipt_MASQUERADE.c b/net/ipv4/netfilter/ipt_MASQUERADE.c
index d80fee8327e4..84c26dd27d81 100644
--- a/net/ipv4/netfilter/ipt_MASQUERADE.c
+++ b/net/ipv4/netfilter/ipt_MASQUERADE.c
@@ -77,7 +77,7 @@ masquerade_tg(struct sk_buff *skb, const struct net_device *in,
 		return NF_ACCEPT;
 
 	mr = targinfo;
-	rt = (struct rtable *)skb->dst;
+	rt = skb->rtable;
 	newsrc = inet_select_addr(out, rt->rt_gateway, RT_SCOPE_UNIVERSE);
 	if (!newsrc) {
 		printk("MASQUERADE: %s ate my IP address\n", out->name);
@@ -120,7 +120,7 @@ static int masq_device_event(struct notifier_block *this,
 {
 	const struct net_device *dev = ptr;
 
-	if (dev->nd_net != &init_net)
+	if (dev_net(dev) != &init_net)
 		return NOTIFY_DONE;
 
 	if (event == NETDEV_DOWN) {
@@ -139,18 +139,8 @@ static int masq_inet_event(struct notifier_block *this,
 			   unsigned long event,
 			   void *ptr)
 {
-	const struct net_device *dev = ((struct in_ifaddr *)ptr)->ifa_dev->dev;
-
-	if (event == NETDEV_DOWN) {
-		/* IP address was deleted.  Search entire table for
-		   conntracks which were associated with that device,
-		   and forget them. */
-		NF_CT_ASSERT(dev->ifindex != 0);
-
-		nf_ct_iterate_cleanup(device_cmp, (void *)(long)dev->ifindex);
-	}
-
-	return NOTIFY_DONE;
+	struct net_device *dev = ((struct in_ifaddr *)ptr)->ifa_dev->dev;
+	return masq_device_event(this, event, dev);
 }
 
 static struct notifier_block masq_dev_notifier = {
diff --git a/net/ipv4/netfilter/ipt_REJECT.c b/net/ipv4/netfilter/ipt_REJECT.c
index 22606e2baa16..2639872849da 100644
--- a/net/ipv4/netfilter/ipt_REJECT.c
+++ b/net/ipv4/netfilter/ipt_REJECT.c
@@ -35,8 +35,10 @@ MODULE_DESCRIPTION("Xtables: packet \"rejection\" target for IPv4");
 static void send_reset(struct sk_buff *oldskb, int hook)
 {
 	struct sk_buff *nskb;
-	struct iphdr *oiph, *niph;
-	struct tcphdr _otcph, *oth, *tcph;
+	const struct iphdr *oiph;
+	struct iphdr *niph;
+	const struct tcphdr *oth;
+	struct tcphdr _otcph, *tcph;
 	unsigned int addr_type;
 
 	/* IP header checks: fragment. */
diff --git a/net/ipv4/netfilter/ipt_recent.c b/net/ipv4/netfilter/ipt_recent.c
index 50e06690eb5b..21cb053f5d7d 100644
--- a/net/ipv4/netfilter/ipt_recent.c
+++ b/net/ipv4/netfilter/ipt_recent.c
@@ -340,7 +340,7 @@ static void *recent_seq_start(struct seq_file *seq, loff_t *pos)
 static void *recent_seq_next(struct seq_file *seq, void *v, loff_t *pos)
 {
 	struct recent_iter_state *st = seq->private;
-	struct recent_table *t = st->table;
+	const struct recent_table *t = st->table;
 	struct recent_entry *e = v;
 	struct list_head *head = e->list.next;
 
@@ -361,7 +361,7 @@ static void recent_seq_stop(struct seq_file *s, void *v)
 
 static int recent_seq_show(struct seq_file *seq, void *v)
 {
-	struct recent_entry *e = v;
+	const struct recent_entry *e = v;
 	unsigned int i;
 
 	i = (e->index - 1) % ip_pkt_list_tot;
@@ -396,7 +396,7 @@ static int recent_seq_open(struct inode *inode, struct file *file)
 static ssize_t recent_proc_write(struct file *file, const char __user *input,
 				 size_t size, loff_t *loff)
 {
-	struct proc_dir_entry *pde = PDE(file->f_path.dentry->d_inode);
+	const struct proc_dir_entry *pde = PDE(file->f_path.dentry->d_inode);
 	struct recent_table *t = pde->data;
 	struct recent_entry *e;
 	char buf[sizeof("+255.255.255.255")], *c = buf;
diff --git a/net/ipv4/netfilter/iptable_filter.c b/net/ipv4/netfilter/iptable_filter.c
index 69f3d7e6e96f..1ea677dcf845 100644
--- a/net/ipv4/netfilter/iptable_filter.c
+++ b/net/ipv4/netfilter/iptable_filter.c
@@ -56,20 +56,32 @@ static struct
 static struct xt_table packet_filter = {
 	.name		= "filter",
 	.valid_hooks	= FILTER_VALID_HOOKS,
-	.lock		= RW_LOCK_UNLOCKED,
+	.lock		= __RW_LOCK_UNLOCKED(packet_filter.lock),
 	.me		= THIS_MODULE,
 	.af		= AF_INET,
 };
 
 /* The work comes in here from netfilter.c. */
 static unsigned int
+ipt_local_in_hook(unsigned int hook,
+		  struct sk_buff *skb,
+		  const struct net_device *in,
+		  const struct net_device *out,
+		  int (*okfn)(struct sk_buff *))
+{
+	return ipt_do_table(skb, hook, in, out,
+			    nf_local_in_net(in, out)->ipv4.iptable_filter);
+}
+
+static unsigned int
 ipt_hook(unsigned int hook,
 	 struct sk_buff *skb,
 	 const struct net_device *in,
 	 const struct net_device *out,
 	 int (*okfn)(struct sk_buff *))
 {
-	return ipt_do_table(skb, hook, in, out, init_net.ipv4.iptable_filter);
+	return ipt_do_table(skb, hook, in, out,
+			    nf_forward_net(in, out)->ipv4.iptable_filter);
 }
 
 static unsigned int
@@ -88,12 +100,13 @@ ipt_local_out_hook(unsigned int hook,
 		return NF_ACCEPT;
 	}
 
-	return ipt_do_table(skb, hook, in, out, init_net.ipv4.iptable_filter);
+	return ipt_do_table(skb, hook, in, out,
+			    nf_local_out_net(in, out)->ipv4.iptable_filter);
 }
 
 static struct nf_hook_ops ipt_ops[] __read_mostly = {
 	{
-		.hook		= ipt_hook,
+		.hook		= ipt_local_in_hook,
 		.owner		= THIS_MODULE,
 		.pf		= PF_INET,
 		.hooknum	= NF_INET_LOCAL_IN,
diff --git a/net/ipv4/netfilter/iptable_mangle.c b/net/ipv4/netfilter/iptable_mangle.c
index c55a210853a7..da59182f2226 100644
--- a/net/ipv4/netfilter/iptable_mangle.c
+++ b/net/ipv4/netfilter/iptable_mangle.c
@@ -67,20 +67,54 @@ static struct
 static struct xt_table packet_mangler = {
 	.name		= "mangle",
 	.valid_hooks	= MANGLE_VALID_HOOKS,
-	.lock		= RW_LOCK_UNLOCKED,
+	.lock		= __RW_LOCK_UNLOCKED(packet_mangler.lock),
 	.me		= THIS_MODULE,
 	.af		= AF_INET,
 };
 
 /* The work comes in here from netfilter.c. */
 static unsigned int
-ipt_route_hook(unsigned int hook,
+ipt_pre_routing_hook(unsigned int hook,
+		     struct sk_buff *skb,
+		     const struct net_device *in,
+		     const struct net_device *out,
+		     int (*okfn)(struct sk_buff *))
+{
+	return ipt_do_table(skb, hook, in, out,
+			    nf_pre_routing_net(in, out)->ipv4.iptable_mangle);
+}
+
+static unsigned int
+ipt_post_routing_hook(unsigned int hook,
+		      struct sk_buff *skb,
+		      const struct net_device *in,
+		      const struct net_device *out,
+		      int (*okfn)(struct sk_buff *))
+{
+	return ipt_do_table(skb, hook, in, out,
+			    nf_post_routing_net(in, out)->ipv4.iptable_mangle);
+}
+
+static unsigned int
+ipt_local_in_hook(unsigned int hook,
+		  struct sk_buff *skb,
+		  const struct net_device *in,
+		  const struct net_device *out,
+		  int (*okfn)(struct sk_buff *))
+{
+	return ipt_do_table(skb, hook, in, out,
+			    nf_local_in_net(in, out)->ipv4.iptable_mangle);
+}
+
+static unsigned int
+ipt_forward_hook(unsigned int hook,
 	 struct sk_buff *skb,
 	 const struct net_device *in,
 	 const struct net_device *out,
 	 int (*okfn)(struct sk_buff *))
 {
-	return ipt_do_table(skb, hook, in, out, init_net.ipv4.iptable_mangle);
+	return ipt_do_table(skb, hook, in, out,
+			    nf_forward_net(in, out)->ipv4.iptable_mangle);
 }
 
 static unsigned int
@@ -112,7 +146,8 @@ ipt_local_hook(unsigned int hook,
 	daddr = iph->daddr;
 	tos = iph->tos;
 
-	ret = ipt_do_table(skb, hook, in, out, init_net.ipv4.iptable_mangle);
+	ret = ipt_do_table(skb, hook, in, out,
+			   nf_local_out_net(in, out)->ipv4.iptable_mangle);
 	/* Reroute for ANY change. */
 	if (ret != NF_DROP && ret != NF_STOLEN && ret != NF_QUEUE) {
 		iph = ip_hdr(skb);
@@ -130,21 +165,21 @@ ipt_local_hook(unsigned int hook,
 
 static struct nf_hook_ops ipt_ops[] __read_mostly = {
 	{
-		.hook		= ipt_route_hook,
+		.hook		= ipt_pre_routing_hook,
 		.owner		= THIS_MODULE,
 		.pf		= PF_INET,
 		.hooknum	= NF_INET_PRE_ROUTING,
 		.priority	= NF_IP_PRI_MANGLE,
 	},
 	{
-		.hook		= ipt_route_hook,
+		.hook		= ipt_local_in_hook,
 		.owner		= THIS_MODULE,
 		.pf		= PF_INET,
 		.hooknum	= NF_INET_LOCAL_IN,
 		.priority	= NF_IP_PRI_MANGLE,
 	},
 	{
-		.hook		= ipt_route_hook,
+		.hook		= ipt_forward_hook,
 		.owner		= THIS_MODULE,
 		.pf		= PF_INET,
 		.hooknum	= NF_INET_FORWARD,
@@ -158,7 +193,7 @@ static struct nf_hook_ops ipt_ops[] __read_mostly = {
 		.priority	= NF_IP_PRI_MANGLE,
 	},
 	{
-		.hook		= ipt_route_hook,
+		.hook		= ipt_post_routing_hook,
 		.owner		= THIS_MODULE,
 		.pf		= PF_INET,
 		.hooknum	= NF_INET_POST_ROUTING,
diff --git a/net/ipv4/netfilter/iptable_raw.c b/net/ipv4/netfilter/iptable_raw.c
index e41fe8ca4e1c..fddce7754b72 100644
--- a/net/ipv4/netfilter/iptable_raw.c
+++ b/net/ipv4/netfilter/iptable_raw.c
@@ -39,7 +39,7 @@ static struct
 static struct xt_table packet_raw = {
 	.name = "raw",
 	.valid_hooks =  RAW_VALID_HOOKS,
-	.lock = RW_LOCK_UNLOCKED,
+	.lock = __RW_LOCK_UNLOCKED(packet_raw.lock),
 	.me = THIS_MODULE,
 	.af = AF_INET,
 };
@@ -52,7 +52,8 @@ ipt_hook(unsigned int hook,
 	 const struct net_device *out,
 	 int (*okfn)(struct sk_buff *))
 {
-	return ipt_do_table(skb, hook, in, out, init_net.ipv4.iptable_raw);
+	return ipt_do_table(skb, hook, in, out,
+			    nf_pre_routing_net(in, out)->ipv4.iptable_raw);
 }
 
 static unsigned int
@@ -70,7 +71,8 @@ ipt_local_hook(unsigned int hook,
 			       "packet.\n");
 		return NF_ACCEPT;
 	}
-	return ipt_do_table(skb, hook, in, out, init_net.ipv4.iptable_raw);
+	return ipt_do_table(skb, hook, in, out,
+			    nf_local_out_net(in, out)->ipv4.iptable_raw);
 }
 
 /* 'raw' is the very first table. */
diff --git a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
index a65b845c5f15..cacb9cb27dab 100644
--- a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
+++ b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
@@ -23,30 +23,36 @@
 #include <net/netfilter/nf_conntrack_l3proto.h>
 #include <net/netfilter/nf_conntrack_core.h>
 #include <net/netfilter/ipv4/nf_conntrack_ipv4.h>
+#include <net/netfilter/nf_nat_helper.h>
 
-static int ipv4_pkt_to_tuple(const struct sk_buff *skb, unsigned int nhoff,
-			     struct nf_conntrack_tuple *tuple)
+int (*nf_nat_seq_adjust_hook)(struct sk_buff *skb,
+			      struct nf_conn *ct,
+			      enum ip_conntrack_info ctinfo);
+EXPORT_SYMBOL_GPL(nf_nat_seq_adjust_hook);
+
+static bool ipv4_pkt_to_tuple(const struct sk_buff *skb, unsigned int nhoff,
+			      struct nf_conntrack_tuple *tuple)
 {
 	const __be32 *ap;
 	__be32 _addrs[2];
 	ap = skb_header_pointer(skb, nhoff + offsetof(struct iphdr, saddr),
 				sizeof(u_int32_t) * 2, _addrs);
 	if (ap == NULL)
-		return 0;
+		return false;
 
 	tuple->src.u3.ip = ap[0];
 	tuple->dst.u3.ip = ap[1];
 
-	return 1;
+	return true;
 }
 
-static int ipv4_invert_tuple(struct nf_conntrack_tuple *tuple,
-			   const struct nf_conntrack_tuple *orig)
+static bool ipv4_invert_tuple(struct nf_conntrack_tuple *tuple,
+			      const struct nf_conntrack_tuple *orig)
 {
 	tuple->src.u3.ip = orig->dst.u3.ip;
 	tuple->dst.u3.ip = orig->src.u3.ip;
 
-	return 1;
+	return true;
 }
 
 static int ipv4_print_tuple(struct seq_file *s,
@@ -101,35 +107,41 @@ static unsigned int ipv4_confirm(unsigned int hooknum,
 				 const struct net_device *out,
 				 int (*okfn)(struct sk_buff *))
 {
-	/* We've seen it coming out the other side: confirm it */
-	return nf_conntrack_confirm(skb);
-}
-
-static unsigned int ipv4_conntrack_help(unsigned int hooknum,
-				      struct sk_buff *skb,
-				      const struct net_device *in,
-				      const struct net_device *out,
-				      int (*okfn)(struct sk_buff *))
-{
 	struct nf_conn *ct;
 	enum ip_conntrack_info ctinfo;
 	const struct nf_conn_help *help;
 	const struct nf_conntrack_helper *helper;
+	unsigned int ret;
 
 	/* This is where we call the helper: as the packet goes out. */
 	ct = nf_ct_get(skb, &ctinfo);
 	if (!ct || ctinfo == IP_CT_RELATED + IP_CT_IS_REPLY)
-		return NF_ACCEPT;
+		goto out;
 
 	help = nfct_help(ct);
 	if (!help)
-		return NF_ACCEPT;
+		goto out;
+
 	/* rcu_read_lock()ed by nf_hook_slow */
 	helper = rcu_dereference(help->helper);
 	if (!helper)
-		return NF_ACCEPT;
-	return helper->help(skb, skb_network_offset(skb) + ip_hdrlen(skb),
-			    ct, ctinfo);
+		goto out;
+
+	ret = helper->help(skb, skb_network_offset(skb) + ip_hdrlen(skb),
+			   ct, ctinfo);
+	if (ret != NF_ACCEPT)
+		return ret;
+
+	if (test_bit(IPS_SEQ_ADJUST_BIT, &ct->status)) {
+		typeof(nf_nat_seq_adjust_hook) seq_adjust;
+
+		seq_adjust = rcu_dereference(nf_nat_seq_adjust_hook);
+		if (!seq_adjust || !seq_adjust(skb, ct, ctinfo))
+			return NF_DROP;
+	}
+out:
+	/* We've seen it coming out the other side: confirm it */
+	return nf_conntrack_confirm(skb);
 }
 
 static unsigned int ipv4_conntrack_defrag(unsigned int hooknum,
@@ -211,20 +223,6 @@ static struct nf_hook_ops ipv4_conntrack_ops[] __read_mostly = {
 		.priority	= NF_IP_PRI_CONNTRACK,
 	},
 	{
-		.hook		= ipv4_conntrack_help,
-		.owner		= THIS_MODULE,
-		.pf		= PF_INET,
-		.hooknum	= NF_INET_POST_ROUTING,
-		.priority	= NF_IP_PRI_CONNTRACK_HELPER,
-	},
-	{
-		.hook		= ipv4_conntrack_help,
-		.owner		= THIS_MODULE,
-		.pf		= PF_INET,
-		.hooknum	= NF_INET_LOCAL_IN,
-		.priority	= NF_IP_PRI_CONNTRACK_HELPER,
-	},
-	{
 		.hook		= ipv4_confirm,
 		.owner		= THIS_MODULE,
 		.pf		= PF_INET,
diff --git a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4_compat.c b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4_compat.c
index f500b0fdaef4..40a46d482490 100644
--- a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4_compat.c
+++ b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4_compat.c
@@ -106,21 +106,16 @@ static int ct_seq_show(struct seq_file *s, void *v)
 	/* we only want to print DIR_ORIGINAL */
 	if (NF_CT_DIRECTION(hash))
 		return 0;
-	if (ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.l3num != AF_INET)
+	if (nf_ct_l3num(ct) != AF_INET)
 		return 0;
 
-	l3proto = __nf_ct_l3proto_find(ct->tuplehash[IP_CT_DIR_ORIGINAL]
-				       .tuple.src.l3num);
+	l3proto = __nf_ct_l3proto_find(nf_ct_l3num(ct));
 	NF_CT_ASSERT(l3proto);
-	l4proto = __nf_ct_l4proto_find(ct->tuplehash[IP_CT_DIR_ORIGINAL]
-				       .tuple.src.l3num,
-				       ct->tuplehash[IP_CT_DIR_ORIGINAL]
-				       .tuple.dst.protonum);
+	l4proto = __nf_ct_l4proto_find(nf_ct_l3num(ct), nf_ct_protonum(ct));
 	NF_CT_ASSERT(l4proto);
 
 	if (seq_printf(s, "%-8s %u %ld ",
-		      l4proto->name,
-		      ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.protonum,
+		      l4proto->name, nf_ct_protonum(ct),
 		      timer_pending(&ct->timeout)
 		      ? (long)(ct->timeout.expires - jiffies)/HZ : 0) != 0)
 		return -ENOSPC;
@@ -379,7 +374,7 @@ static const struct file_operations ct_cpu_seq_fops = {
 	.open    = ct_cpu_seq_open,
 	.read    = seq_read,
 	.llseek  = seq_lseek,
-	.release = seq_release_private,
+	.release = seq_release,
 };
 
 int __init nf_conntrack_ipv4_compat_init(void)
diff --git a/net/ipv4/netfilter/nf_conntrack_proto_icmp.c b/net/ipv4/netfilter/nf_conntrack_proto_icmp.c
index 6873fddb3529..78ab19accace 100644
--- a/net/ipv4/netfilter/nf_conntrack_proto_icmp.c
+++ b/net/ipv4/netfilter/nf_conntrack_proto_icmp.c
@@ -22,22 +22,21 @@
 
 static unsigned long nf_ct_icmp_timeout __read_mostly = 30*HZ;
 
-static int icmp_pkt_to_tuple(const struct sk_buff *skb,
-			     unsigned int dataoff,
-			     struct nf_conntrack_tuple *tuple)
+static bool icmp_pkt_to_tuple(const struct sk_buff *skb, unsigned int dataoff,
+			      struct nf_conntrack_tuple *tuple)
 {
 	const struct icmphdr *hp;
 	struct icmphdr _hdr;
 
 	hp = skb_header_pointer(skb, dataoff, sizeof(_hdr), &_hdr);
 	if (hp == NULL)
-		return 0;
+		return false;
 
 	tuple->dst.u.icmp.type = hp->type;
 	tuple->src.u.icmp.id = hp->un.echo.id;
 	tuple->dst.u.icmp.code = hp->code;
 
-	return 1;
+	return true;
 }
 
 /* Add 1; spaces filled with 0. */
@@ -52,17 +51,17 @@ static const u_int8_t invmap[] = {
 	[ICMP_ADDRESSREPLY] = ICMP_ADDRESS + 1
 };
 
-static int icmp_invert_tuple(struct nf_conntrack_tuple *tuple,
-			     const struct nf_conntrack_tuple *orig)
+static bool icmp_invert_tuple(struct nf_conntrack_tuple *tuple,
+			      const struct nf_conntrack_tuple *orig)
 {
 	if (orig->dst.u.icmp.type >= sizeof(invmap)
 	    || !invmap[orig->dst.u.icmp.type])
-		return 0;
+		return false;
 
 	tuple->src.u.icmp.id = orig->src.u.icmp.id;
 	tuple->dst.u.icmp.type = invmap[orig->dst.u.icmp.type] - 1;
 	tuple->dst.u.icmp.code = orig->dst.u.icmp.code;
-	return 1;
+	return true;
 }
 
 /* Print out the per-protocol part of the tuple. */
@@ -101,8 +100,8 @@ static int icmp_packet(struct nf_conn *ct,
 }
 
 /* Called when a new connection for this protocol found. */
-static int icmp_new(struct nf_conn *ct,
-		    const struct sk_buff *skb, unsigned int dataoff)
+static bool icmp_new(struct nf_conn *ct, const struct sk_buff *skb,
+		     unsigned int dataoff)
 {
 	static const u_int8_t valid_new[] = {
 		[ICMP_ECHO] = 1,
@@ -116,11 +115,11 @@ static int icmp_new(struct nf_conn *ct,
 		/* Can't create a new ICMP `conn' with this. */
 		pr_debug("icmp: can't create new conn with type %u\n",
 			 ct->tuplehash[0].tuple.dst.u.icmp.type);
-		NF_CT_DUMP_TUPLE(&ct->tuplehash[0].tuple);
-		return 0;
+		nf_ct_dump_tuple_ip(&ct->tuplehash[0].tuple);
+		return false;
 	}
 	atomic_set(&ct->proto.icmp.count, 0);
-	return 1;
+	return true;
 }
 
 /* Returns conntrack if it dealt with ICMP, and filled in skb fields */
diff --git a/net/ipv4/netfilter/nf_nat_core.c b/net/ipv4/netfilter/nf_nat_core.c
index 36b4e3bb056f..04578593e100 100644
--- a/net/ipv4/netfilter/nf_nat_core.c
+++ b/net/ipv4/netfilter/nf_nat_core.c
@@ -150,9 +150,9 @@ find_appropriate_src(const struct nf_conntrack_tuple *tuple,
 		     const struct nf_nat_range *range)
 {
 	unsigned int h = hash_by_src(tuple);
-	struct nf_conn_nat *nat;
-	struct nf_conn *ct;
-	struct hlist_node *n;
+	const struct nf_conn_nat *nat;
+	const struct nf_conn *ct;
+	const struct hlist_node *n;
 
 	rcu_read_lock();
 	hlist_for_each_entry_rcu(nat, n, &bysource[h], bysource) {
@@ -349,7 +349,7 @@ nf_nat_setup_info(struct nf_conn *ct,
 EXPORT_SYMBOL(nf_nat_setup_info);
 
 /* Returns true if succeeded. */
-static int
+static bool
 manip_pkt(u_int16_t proto,
 	  struct sk_buff *skb,
 	  unsigned int iphdroff,
@@ -360,7 +360,7 @@ manip_pkt(u_int16_t proto,
 	const struct nf_nat_protocol *p;
 
 	if (!skb_make_writable(skb, iphdroff + sizeof(*iph)))
-		return 0;
+		return false;
 
 	iph = (void *)skb->data + iphdroff;
 
@@ -369,7 +369,7 @@ manip_pkt(u_int16_t proto,
 	/* rcu_read_lock()ed by nf_hook_slow */
 	p = __nf_nat_proto_find(proto);
 	if (!p->manip_pkt(skb, iphdroff, target, maniptype))
-		return 0;
+		return false;
 
 	iph = (void *)skb->data + iphdroff;
 
@@ -380,7 +380,7 @@ manip_pkt(u_int16_t proto,
 		csum_replace4(&iph->check, iph->daddr, target->dst.u3.ip);
 		iph->daddr = target->dst.u3.ip;
 	}
-	return 1;
+	return true;
 }
 
 /* Do packet manipulations according to nf_nat_setup_info. */
@@ -426,7 +426,7 @@ int nf_nat_icmp_reply_translation(struct nf_conn *ct,
 		struct icmphdr icmp;
 		struct iphdr ip;
 	} *inside;
-	struct nf_conntrack_l4proto *l4proto;
+	const struct nf_conntrack_l4proto *l4proto;
 	struct nf_conntrack_tuple inner, target;
 	int hdrlen = ip_hdrlen(skb);
 	enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
@@ -544,46 +544,6 @@ void nf_nat_protocol_unregister(const struct nf_nat_protocol *proto)
 }
 EXPORT_SYMBOL(nf_nat_protocol_unregister);
 
-#if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE)
-int
-nf_nat_port_range_to_nlattr(struct sk_buff *skb,
-			    const struct nf_nat_range *range)
-{
-	NLA_PUT_BE16(skb, CTA_PROTONAT_PORT_MIN, range->min.tcp.port);
-	NLA_PUT_BE16(skb, CTA_PROTONAT_PORT_MAX, range->max.tcp.port);
-
-	return 0;
-
-nla_put_failure:
-	return -1;
-}
-EXPORT_SYMBOL_GPL(nf_nat_port_nlattr_to_range);
-
-int
-nf_nat_port_nlattr_to_range(struct nlattr *tb[], struct nf_nat_range *range)
-{
-	int ret = 0;
-
-	/* we have to return whether we actually parsed something or not */
-
-	if (tb[CTA_PROTONAT_PORT_MIN]) {
-		ret = 1;
-		range->min.tcp.port = nla_get_be16(tb[CTA_PROTONAT_PORT_MIN]);
-	}
-
-	if (!tb[CTA_PROTONAT_PORT_MAX]) {
-		if (ret)
-			range->max.tcp.port = range->min.tcp.port;
-	} else {
-		ret = 1;
-		range->max.tcp.port = nla_get_be16(tb[CTA_PROTONAT_PORT_MAX]);
-	}
-
-	return ret;
-}
-EXPORT_SYMBOL_GPL(nf_nat_port_range_to_nlattr);
-#endif
-
 /* Noone using conntrack by the time this called. */
 static void nf_nat_cleanup_conntrack(struct nf_conn *ct)
 {
@@ -660,6 +620,9 @@ static int __init nf_nat_init(void)
 	nf_conntrack_untracked.status |= IPS_NAT_DONE_MASK;
 
 	l3proto = nf_ct_l3proto_find_get((u_int16_t)AF_INET);
+
+	BUG_ON(nf_nat_seq_adjust_hook != NULL);
+	rcu_assign_pointer(nf_nat_seq_adjust_hook, nf_nat_seq_adjust);
 	return 0;
 
  cleanup_extend:
@@ -686,6 +649,8 @@ static void __exit nf_nat_cleanup(void)
 	nf_ct_free_hashtable(bysource, nf_nat_vmalloced, nf_nat_htable_size);
 	nf_ct_l3proto_put(l3proto);
 	nf_ct_extend_unregister(&nat_extend);
+	rcu_assign_pointer(nf_nat_seq_adjust_hook, NULL);
+	synchronize_net();
 }
 
 MODULE_LICENSE("GPL");
diff --git a/net/ipv4/netfilter/nf_nat_helper.c b/net/ipv4/netfilter/nf_nat_helper.c
index ca57f47bbd25..11976ea29884 100644
--- a/net/ipv4/netfilter/nf_nat_helper.c
+++ b/net/ipv4/netfilter/nf_nat_helper.c
@@ -139,7 +139,7 @@ nf_nat_mangle_tcp_packet(struct sk_buff *skb,
 			 const char *rep_buffer,
 			 unsigned int rep_len)
 {
-	struct rtable *rt = (struct rtable *)skb->dst;
+	struct rtable *rt = skb->rtable;
 	struct iphdr *iph;
 	struct tcphdr *tcph;
 	int oldlen, datalen;
@@ -217,7 +217,7 @@ nf_nat_mangle_udp_packet(struct sk_buff *skb,
 			 const char *rep_buffer,
 			 unsigned int rep_len)
 {
-	struct rtable *rt = (struct rtable *)skb->dst;
+	struct rtable *rt = skb->rtable;
 	struct iphdr *iph;
 	struct udphdr *udph;
 	int datalen, oldlen;
@@ -416,7 +416,6 @@ nf_nat_seq_adjust(struct sk_buff *skb,
 
 	return 1;
 }
-EXPORT_SYMBOL(nf_nat_seq_adjust);
 
 /* Setup NAT on this expected conntrack so it follows master. */
 /* If we fail to get a free NAT slot, we'll get dropped on confirm */
diff --git a/net/ipv4/netfilter/nf_nat_pptp.c b/net/ipv4/netfilter/nf_nat_pptp.c
index 3a1e6d6afc0a..da3d91a5ef5c 100644
--- a/net/ipv4/netfilter/nf_nat_pptp.c
+++ b/net/ipv4/netfilter/nf_nat_pptp.c
@@ -72,7 +72,7 @@ static void pptp_nat_expected(struct nf_conn *ct,
 	}
 
 	pr_debug("trying to unexpect other dir: ");
-	NF_CT_DUMP_TUPLE(&t);
+	nf_ct_dump_tuple_ip(&t);
 	other_exp = nf_ct_expect_find_get(&t);
 	if (other_exp) {
 		nf_ct_unexpect_related(other_exp);
diff --git a/net/ipv4/netfilter/nf_nat_proto_common.c b/net/ipv4/netfilter/nf_nat_proto_common.c
new file mode 100644
index 000000000000..91537f11273f
--- /dev/null
+++ b/net/ipv4/netfilter/nf_nat_proto_common.c
@@ -0,0 +1,120 @@
+/* (C) 1999-2001 Paul `Rusty' Russell
+ * (C) 2002-2006 Netfilter Core Team <coreteam@netfilter.org>
+ * (C) 2008 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/types.h>
+#include <linux/random.h>
+#include <linux/ip.h>
+
+#include <linux/netfilter.h>
+#include <net/netfilter/nf_nat.h>
+#include <net/netfilter/nf_nat_core.h>
+#include <net/netfilter/nf_nat_rule.h>
+#include <net/netfilter/nf_nat_protocol.h>
+
+bool nf_nat_proto_in_range(const struct nf_conntrack_tuple *tuple,
+			   enum nf_nat_manip_type maniptype,
+			   const union nf_conntrack_man_proto *min,
+			   const union nf_conntrack_man_proto *max)
+{
+	__be16 port;
+
+	if (maniptype == IP_NAT_MANIP_SRC)
+		port = tuple->src.u.all;
+	else
+		port = tuple->dst.u.all;
+
+	return ntohs(port) >= ntohs(min->all) &&
+	       ntohs(port) <= ntohs(max->all);
+}
+EXPORT_SYMBOL_GPL(nf_nat_proto_in_range);
+
+bool nf_nat_proto_unique_tuple(struct nf_conntrack_tuple *tuple,
+			       const struct nf_nat_range *range,
+			       enum nf_nat_manip_type maniptype,
+			       const struct nf_conn *ct,
+			       u_int16_t *rover)
+{
+	unsigned int range_size, min, i;
+	__be16 *portptr;
+	u_int16_t off;
+
+	if (maniptype == IP_NAT_MANIP_SRC)
+		portptr = &tuple->src.u.all;
+	else
+		portptr = &tuple->dst.u.all;
+
+	/* If no range specified... */
+	if (!(range->flags & IP_NAT_RANGE_PROTO_SPECIFIED)) {
+		/* If it's dst rewrite, can't change port */
+		if (maniptype == IP_NAT_MANIP_DST)
+			return false;
+
+		if (ntohs(*portptr) < 1024) {
+			/* Loose convention: >> 512 is credential passing */
+			if (ntohs(*portptr) < 512) {
+				min = 1;
+				range_size = 511 - min + 1;
+			} else {
+				min = 600;
+				range_size = 1023 - min + 1;
+			}
+		} else {
+			min = 1024;
+			range_size = 65535 - 1024 + 1;
+		}
+	} else {
+		min = ntohs(range->min.all);
+		range_size = ntohs(range->max.all) - min + 1;
+	}
+
+	off = *rover;
+	if (range->flags & IP_NAT_RANGE_PROTO_RANDOM)
+		off = net_random();
+
+	for (i = 0; i < range_size; i++, off++) {
+		*portptr = htons(min + off % range_size);
+		if (nf_nat_used_tuple(tuple, ct))
+			continue;
+		if (!(range->flags & IP_NAT_RANGE_PROTO_RANDOM))
+			*rover = off;
+		return true;
+	}
+	return false;
+}
+EXPORT_SYMBOL_GPL(nf_nat_proto_unique_tuple);
+
+#if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE)
+int nf_nat_proto_range_to_nlattr(struct sk_buff *skb,
+				 const struct nf_nat_range *range)
+{
+	NLA_PUT_BE16(skb, CTA_PROTONAT_PORT_MIN, range->min.all);
+	NLA_PUT_BE16(skb, CTA_PROTONAT_PORT_MAX, range->max.all);
+	return 0;
+
+nla_put_failure:
+	return -1;
+}
+EXPORT_SYMBOL_GPL(nf_nat_proto_nlattr_to_range);
+
+int nf_nat_proto_nlattr_to_range(struct nlattr *tb[],
+				 struct nf_nat_range *range)
+{
+	if (tb[CTA_PROTONAT_PORT_MIN]) {
+		range->min.all = nla_get_be16(tb[CTA_PROTONAT_PORT_MIN]);
+		range->max.all = range->min.tcp.port;
+		range->flags |= IP_NAT_RANGE_PROTO_SPECIFIED;
+	}
+	if (tb[CTA_PROTONAT_PORT_MAX]) {
+		range->max.all = nla_get_be16(tb[CTA_PROTONAT_PORT_MAX]);
+		range->flags |= IP_NAT_RANGE_PROTO_SPECIFIED;
+	}
+	return 0;
+}
+EXPORT_SYMBOL_GPL(nf_nat_proto_range_to_nlattr);
+#endif
diff --git a/net/ipv4/netfilter/nf_nat_proto_dccp.c b/net/ipv4/netfilter/nf_nat_proto_dccp.c
new file mode 100644
index 000000000000..22485ce306d4
--- /dev/null
+++ b/net/ipv4/netfilter/nf_nat_proto_dccp.c
@@ -0,0 +1,108 @@
+/*
+ * DCCP NAT protocol helper
+ *
+ * Copyright (c) 2005, 2006. 2008 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/module.h>
+#include <linux/init.h>
+#include <linux/skbuff.h>
+#include <linux/ip.h>
+#include <linux/dccp.h>
+
+#include <net/netfilter/nf_conntrack.h>
+#include <net/netfilter/nf_nat.h>
+#include <net/netfilter/nf_nat_protocol.h>
+
+static u_int16_t dccp_port_rover;
+
+static bool
+dccp_unique_tuple(struct nf_conntrack_tuple *tuple,
+		  const struct nf_nat_range *range,
+		  enum nf_nat_manip_type maniptype,
+		  const struct nf_conn *ct)
+{
+	return nf_nat_proto_unique_tuple(tuple, range, maniptype, ct,
+					 &dccp_port_rover);
+}
+
+static bool
+dccp_manip_pkt(struct sk_buff *skb,
+	       unsigned int iphdroff,
+	       const struct nf_conntrack_tuple *tuple,
+	       enum nf_nat_manip_type maniptype)
+{
+	const struct iphdr *iph = (const void *)(skb->data + iphdroff);
+	struct dccp_hdr *hdr;
+	unsigned int hdroff = iphdroff + iph->ihl * 4;
+	__be32 oldip, newip;
+	__be16 *portptr, oldport, newport;
+	int hdrsize = 8; /* DCCP connection tracking guarantees this much */
+
+	if (skb->len >= hdroff + sizeof(struct dccp_hdr))
+		hdrsize = sizeof(struct dccp_hdr);
+
+	if (!skb_make_writable(skb, hdroff + hdrsize))
+		return false;
+
+	iph = (struct iphdr *)(skb->data + iphdroff);
+	hdr = (struct dccp_hdr *)(skb->data + hdroff);
+
+	if (maniptype == IP_NAT_MANIP_SRC) {
+		oldip = iph->saddr;
+		newip = tuple->src.u3.ip;
+		newport = tuple->src.u.dccp.port;
+		portptr = &hdr->dccph_sport;
+	} else {
+		oldip = iph->daddr;
+		newip = tuple->dst.u3.ip;
+		newport = tuple->dst.u.dccp.port;
+		portptr = &hdr->dccph_dport;
+	}
+
+	oldport = *portptr;
+	*portptr = newport;
+
+	if (hdrsize < sizeof(*hdr))
+		return true;
+
+	inet_proto_csum_replace4(&hdr->dccph_checksum, skb, oldip, newip, 1);
+	inet_proto_csum_replace2(&hdr->dccph_checksum, skb, oldport, newport,
+				 0);
+	return true;
+}
+
+static const struct nf_nat_protocol nf_nat_protocol_dccp = {
+	.protonum		= IPPROTO_DCCP,
+	.me			= THIS_MODULE,
+	.manip_pkt		= dccp_manip_pkt,
+	.in_range		= nf_nat_proto_in_range,
+	.unique_tuple		= dccp_unique_tuple,
+#if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE)
+	.range_to_nlattr	= nf_nat_proto_range_to_nlattr,
+	.nlattr_to_range	= nf_nat_proto_nlattr_to_range,
+#endif
+};
+
+static int __init nf_nat_proto_dccp_init(void)
+{
+	return nf_nat_protocol_register(&nf_nat_protocol_dccp);
+}
+
+static void __exit nf_nat_proto_dccp_fini(void)
+{
+	nf_nat_protocol_unregister(&nf_nat_protocol_dccp);
+}
+
+module_init(nf_nat_proto_dccp_init);
+module_exit(nf_nat_proto_dccp_fini);
+
+MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
+MODULE_DESCRIPTION("DCCP NAT protocol helper");
+MODULE_LICENSE("GPL");
diff --git a/net/ipv4/netfilter/nf_nat_proto_gre.c b/net/ipv4/netfilter/nf_nat_proto_gre.c
index a1e4da16da2e..d7e89201351e 100644
--- a/net/ipv4/netfilter/nf_nat_proto_gre.c
+++ b/net/ipv4/netfilter/nf_nat_proto_gre.c
@@ -36,26 +36,8 @@ MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Harald Welte <laforge@gnumonks.org>");
 MODULE_DESCRIPTION("Netfilter NAT protocol helper module for GRE");
 
-/* is key in given range between min and max */
-static int
-gre_in_range(const struct nf_conntrack_tuple *tuple,
-	     enum nf_nat_manip_type maniptype,
-	     const union nf_conntrack_man_proto *min,
-	     const union nf_conntrack_man_proto *max)
-{
-	__be16 key;
-
-	if (maniptype == IP_NAT_MANIP_SRC)
-		key = tuple->src.u.gre.key;
-	else
-		key = tuple->dst.u.gre.key;
-
-	return ntohs(key) >= ntohs(min->gre.key) &&
-	       ntohs(key) <= ntohs(max->gre.key);
-}
-
 /* generate unique tuple ... */
-static int
+static bool
 gre_unique_tuple(struct nf_conntrack_tuple *tuple,
 		 const struct nf_nat_range *range,
 		 enum nf_nat_manip_type maniptype,
@@ -68,7 +50,7 @@ gre_unique_tuple(struct nf_conntrack_tuple *tuple,
 	/* If there is no master conntrack we are not PPTP,
 	   do not change tuples */
 	if (!ct->master)
-		return 0;
+		return false;
 
 	if (maniptype == IP_NAT_MANIP_SRC)
 		keyptr = &tuple->src.u.gre.key;
@@ -89,20 +71,20 @@ gre_unique_tuple(struct nf_conntrack_tuple *tuple,
 	for (i = 0; i < range_size; i++, key++) {
 		*keyptr = htons(min + key % range_size);
 		if (!nf_nat_used_tuple(tuple, ct))
-			return 1;
+			return true;
 	}
 
 	pr_debug("%p: no NAT mapping\n", ct);
-	return 0;
+	return false;
 }
 
 /* manipulate a GRE packet according to maniptype */
-static int
+static bool
 gre_manip_pkt(struct sk_buff *skb, unsigned int iphdroff,
 	      const struct nf_conntrack_tuple *tuple,
 	      enum nf_nat_manip_type maniptype)
 {
-	struct gre_hdr *greh;
+	const struct gre_hdr *greh;
 	struct gre_hdr_pptp *pgreh;
 	const struct iphdr *iph = (struct iphdr *)(skb->data + iphdroff);
 	unsigned int hdroff = iphdroff + iph->ihl * 4;
@@ -110,7 +92,7 @@ gre_manip_pkt(struct sk_buff *skb, unsigned int iphdroff,
 	/* pgreh includes two optional 32bit fields which are not required
 	 * to be there.  That's where the magic '8' comes from */
 	if (!skb_make_writable(skb, hdroff + sizeof(*pgreh) - 8))
-		return 0;
+		return false;
 
 	greh = (void *)skb->data + hdroff;
 	pgreh = (struct gre_hdr_pptp *)greh;
@@ -118,7 +100,7 @@ gre_manip_pkt(struct sk_buff *skb, unsigned int iphdroff,
 	/* we only have destination manip of a packet, since 'source key'
 	 * is not present in the packet itself */
 	if (maniptype != IP_NAT_MANIP_DST)
-		return 1;
+		return true;
 	switch (greh->version) {
 	case GRE_VERSION_1701:
 		/* We do not currently NAT any GREv0 packets.
@@ -130,21 +112,20 @@ gre_manip_pkt(struct sk_buff *skb, unsigned int iphdroff,
 		break;
 	default:
 		pr_debug("can't nat unknown GRE version\n");
-		return 0;
+		return false;
 	}
-	return 1;
+	return true;
 }
 
 static const struct nf_nat_protocol gre = {
-	.name			= "GRE",
 	.protonum		= IPPROTO_GRE,
 	.me			= THIS_MODULE,
 	.manip_pkt		= gre_manip_pkt,
-	.in_range		= gre_in_range,
+	.in_range		= nf_nat_proto_in_range,
 	.unique_tuple		= gre_unique_tuple,
 #if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE)
-	.range_to_nlattr	= nf_nat_port_range_to_nlattr,
-	.nlattr_to_range	= nf_nat_port_nlattr_to_range,
+	.range_to_nlattr	= nf_nat_proto_range_to_nlattr,
+	.nlattr_to_range	= nf_nat_proto_nlattr_to_range,
 #endif
 };
 
diff --git a/net/ipv4/netfilter/nf_nat_proto_icmp.c b/net/ipv4/netfilter/nf_nat_proto_icmp.c
index 03a02969aa57..19a8b0b07d8e 100644
--- a/net/ipv4/netfilter/nf_nat_proto_icmp.c
+++ b/net/ipv4/netfilter/nf_nat_proto_icmp.c
@@ -17,7 +17,7 @@
 #include <net/netfilter/nf_nat_rule.h>
 #include <net/netfilter/nf_nat_protocol.h>
 
-static int
+static bool
 icmp_in_range(const struct nf_conntrack_tuple *tuple,
 	      enum nf_nat_manip_type maniptype,
 	      const union nf_conntrack_man_proto *min,
@@ -27,7 +27,7 @@ icmp_in_range(const struct nf_conntrack_tuple *tuple,
 	       ntohs(tuple->src.u.icmp.id) <= ntohs(max->icmp.id);
 }
 
-static int
+static bool
 icmp_unique_tuple(struct nf_conntrack_tuple *tuple,
 		  const struct nf_nat_range *range,
 		  enum nf_nat_manip_type maniptype,
@@ -46,12 +46,12 @@ icmp_unique_tuple(struct nf_conntrack_tuple *tuple,
 		tuple->src.u.icmp.id = htons(ntohs(range->min.icmp.id) +
 					     (id % range_size));
 		if (!nf_nat_used_tuple(tuple, ct))
-			return 1;
+			return true;
 	}
-	return 0;
+	return false;
 }
 
-static int
+static bool
 icmp_manip_pkt(struct sk_buff *skb,
 	       unsigned int iphdroff,
 	       const struct nf_conntrack_tuple *tuple,
@@ -62,24 +62,23 @@ icmp_manip_pkt(struct sk_buff *skb,
 	unsigned int hdroff = iphdroff + iph->ihl*4;
 
 	if (!skb_make_writable(skb, hdroff + sizeof(*hdr)))
-		return 0;
+		return false;
 
 	hdr = (struct icmphdr *)(skb->data + hdroff);
 	inet_proto_csum_replace2(&hdr->checksum, skb,
 				 hdr->un.echo.id, tuple->src.u.icmp.id, 0);
 	hdr->un.echo.id = tuple->src.u.icmp.id;
-	return 1;
+	return true;
 }
 
 const struct nf_nat_protocol nf_nat_protocol_icmp = {
-	.name			= "ICMP",
 	.protonum		= IPPROTO_ICMP,
 	.me			= THIS_MODULE,
 	.manip_pkt		= icmp_manip_pkt,
 	.in_range		= icmp_in_range,
 	.unique_tuple		= icmp_unique_tuple,
 #if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE)
-	.range_to_nlattr	= nf_nat_port_range_to_nlattr,
-	.nlattr_to_range	= nf_nat_port_nlattr_to_range,
+	.range_to_nlattr	= nf_nat_proto_range_to_nlattr,
+	.nlattr_to_range	= nf_nat_proto_nlattr_to_range,
 #endif
 };
diff --git a/net/ipv4/netfilter/nf_nat_proto_sctp.c b/net/ipv4/netfilter/nf_nat_proto_sctp.c
new file mode 100644
index 000000000000..82e4c0e286b8
--- /dev/null
+++ b/net/ipv4/netfilter/nf_nat_proto_sctp.c
@@ -0,0 +1,96 @@
+/*
+ * Copyright (c) 2008 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/types.h>
+#include <linux/init.h>
+#include <linux/ip.h>
+#include <linux/sctp.h>
+#include <net/sctp/checksum.h>
+
+#include <net/netfilter/nf_nat_protocol.h>
+
+static u_int16_t nf_sctp_port_rover;
+
+static bool
+sctp_unique_tuple(struct nf_conntrack_tuple *tuple,
+		  const struct nf_nat_range *range,
+		  enum nf_nat_manip_type maniptype,
+		  const struct nf_conn *ct)
+{
+	return nf_nat_proto_unique_tuple(tuple, range, maniptype, ct,
+					 &nf_sctp_port_rover);
+}
+
+static bool
+sctp_manip_pkt(struct sk_buff *skb,
+	       unsigned int iphdroff,
+	       const struct nf_conntrack_tuple *tuple,
+	       enum nf_nat_manip_type maniptype)
+{
+	const struct iphdr *iph = (struct iphdr *)(skb->data + iphdroff);
+	sctp_sctphdr_t *hdr;
+	unsigned int hdroff = iphdroff + iph->ihl*4;
+	__be32 oldip, newip;
+	u32 crc32;
+
+	if (!skb_make_writable(skb, hdroff + sizeof(*hdr)))
+		return false;
+
+	iph = (struct iphdr *)(skb->data + iphdroff);
+	hdr = (struct sctphdr *)(skb->data + hdroff);
+
+	if (maniptype == IP_NAT_MANIP_SRC) {
+		/* Get rid of src ip and src pt */
+		oldip = iph->saddr;
+		newip = tuple->src.u3.ip;
+		hdr->source = tuple->src.u.sctp.port;
+	} else {
+		/* Get rid of dst ip and dst pt */
+		oldip = iph->daddr;
+		newip = tuple->dst.u3.ip;
+		hdr->dest = tuple->dst.u.sctp.port;
+	}
+
+	crc32 = sctp_start_cksum((u8 *)hdr, skb_headlen(skb) - hdroff);
+	for (skb = skb_shinfo(skb)->frag_list; skb; skb = skb->next)
+		crc32 = sctp_update_cksum((u8 *)skb->data, skb_headlen(skb),
+					  crc32);
+	crc32 = sctp_end_cksum(crc32);
+	hdr->checksum = htonl(crc32);
+
+	return true;
+}
+
+static const struct nf_nat_protocol nf_nat_protocol_sctp = {
+	.protonum		= IPPROTO_SCTP,
+	.me			= THIS_MODULE,
+	.manip_pkt		= sctp_manip_pkt,
+	.in_range		= nf_nat_proto_in_range,
+	.unique_tuple		= sctp_unique_tuple,
+#if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE)
+	.range_to_nlattr	= nf_nat_proto_range_to_nlattr,
+	.nlattr_to_range	= nf_nat_proto_nlattr_to_range,
+#endif
+};
+
+static int __init nf_nat_proto_sctp_init(void)
+{
+	return nf_nat_protocol_register(&nf_nat_protocol_sctp);
+}
+
+static void __exit nf_nat_proto_sctp_exit(void)
+{
+	nf_nat_protocol_unregister(&nf_nat_protocol_sctp);
+}
+
+module_init(nf_nat_proto_sctp_init);
+module_exit(nf_nat_proto_sctp_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("SCTP NAT protocol helper");
+MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
diff --git a/net/ipv4/netfilter/nf_nat_proto_tcp.c b/net/ipv4/netfilter/nf_nat_proto_tcp.c
index ffd5d1589eca..399e2cfa263b 100644
--- a/net/ipv4/netfilter/nf_nat_proto_tcp.c
+++ b/net/ipv4/netfilter/nf_nat_proto_tcp.c
@@ -8,7 +8,6 @@
 
 #include <linux/types.h>
 #include <linux/init.h>
-#include <linux/random.h>
 #include <linux/ip.h>
 #include <linux/tcp.h>
 
@@ -19,75 +18,19 @@
 #include <net/netfilter/nf_nat_protocol.h>
 #include <net/netfilter/nf_nat_core.h>
 
-static int
-tcp_in_range(const struct nf_conntrack_tuple *tuple,
-	     enum nf_nat_manip_type maniptype,
-	     const union nf_conntrack_man_proto *min,
-	     const union nf_conntrack_man_proto *max)
-{
-	__be16 port;
-
-	if (maniptype == IP_NAT_MANIP_SRC)
-		port = tuple->src.u.tcp.port;
-	else
-		port = tuple->dst.u.tcp.port;
-
-	return ntohs(port) >= ntohs(min->tcp.port) &&
-	       ntohs(port) <= ntohs(max->tcp.port);
-}
+static u_int16_t tcp_port_rover;
 
-static int
+static bool
 tcp_unique_tuple(struct nf_conntrack_tuple *tuple,
 		 const struct nf_nat_range *range,
 		 enum nf_nat_manip_type maniptype,
 		 const struct nf_conn *ct)
 {
-	static u_int16_t port;
-	__be16 *portptr;
-	unsigned int range_size, min, i;
-
-	if (maniptype == IP_NAT_MANIP_SRC)
-		portptr = &tuple->src.u.tcp.port;
-	else
-		portptr = &tuple->dst.u.tcp.port;
-
-	/* If no range specified... */
-	if (!(range->flags & IP_NAT_RANGE_PROTO_SPECIFIED)) {
-		/* If it's dst rewrite, can't change port */
-		if (maniptype == IP_NAT_MANIP_DST)
-			return 0;
-
-		/* Map privileged onto privileged. */
-		if (ntohs(*portptr) < 1024) {
-			/* Loose convention: >> 512 is credential passing */
-			if (ntohs(*portptr)<512) {
-				min = 1;
-				range_size = 511 - min + 1;
-			} else {
-				min = 600;
-				range_size = 1023 - min + 1;
-			}
-		} else {
-			min = 1024;
-			range_size = 65535 - 1024 + 1;
-		}
-	} else {
-		min = ntohs(range->min.tcp.port);
-		range_size = ntohs(range->max.tcp.port) - min + 1;
-	}
-
-	if (range->flags & IP_NAT_RANGE_PROTO_RANDOM)
-		port =  net_random();
-
-	for (i = 0; i < range_size; i++, port++) {
-		*portptr = htons(min + port % range_size);
-		if (!nf_nat_used_tuple(tuple, ct))
-			return 1;
-	}
-	return 0;
+	return nf_nat_proto_unique_tuple(tuple, range, maniptype, ct,
+					 &tcp_port_rover);
 }
 
-static int
+static bool
 tcp_manip_pkt(struct sk_buff *skb,
 	      unsigned int iphdroff,
 	      const struct nf_conntrack_tuple *tuple,
@@ -107,7 +50,7 @@ tcp_manip_pkt(struct sk_buff *skb,
 		hdrsize = sizeof(struct tcphdr);
 
 	if (!skb_make_writable(skb, hdroff + hdrsize))
-		return 0;
+		return false;
 
 	iph = (struct iphdr *)(skb->data + iphdroff);
 	hdr = (struct tcphdr *)(skb->data + hdroff);
@@ -130,22 +73,21 @@ tcp_manip_pkt(struct sk_buff *skb,
 	*portptr = newport;
 
 	if (hdrsize < sizeof(*hdr))
-		return 1;
+		return true;
 
 	inet_proto_csum_replace4(&hdr->check, skb, oldip, newip, 1);
 	inet_proto_csum_replace2(&hdr->check, skb, oldport, newport, 0);
-	return 1;
+	return true;
 }
 
 const struct nf_nat_protocol nf_nat_protocol_tcp = {
-	.name			= "TCP",
 	.protonum		= IPPROTO_TCP,
 	.me			= THIS_MODULE,
 	.manip_pkt		= tcp_manip_pkt,
-	.in_range		= tcp_in_range,
+	.in_range		= nf_nat_proto_in_range,
 	.unique_tuple		= tcp_unique_tuple,
 #if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE)
-	.range_to_nlattr	= nf_nat_port_range_to_nlattr,
-	.nlattr_to_range	= nf_nat_port_nlattr_to_range,
+	.range_to_nlattr	= nf_nat_proto_range_to_nlattr,
+	.nlattr_to_range	= nf_nat_proto_nlattr_to_range,
 #endif
 };
diff --git a/net/ipv4/netfilter/nf_nat_proto_udp.c b/net/ipv4/netfilter/nf_nat_proto_udp.c
index 4b8f49910ff2..9e61c79492e4 100644
--- a/net/ipv4/netfilter/nf_nat_proto_udp.c
+++ b/net/ipv4/netfilter/nf_nat_proto_udp.c
@@ -8,7 +8,6 @@
 
 #include <linux/types.h>
 #include <linux/init.h>
-#include <linux/random.h>
 #include <linux/ip.h>
 #include <linux/udp.h>
 
@@ -18,74 +17,19 @@
 #include <net/netfilter/nf_nat_rule.h>
 #include <net/netfilter/nf_nat_protocol.h>
 
-static int
-udp_in_range(const struct nf_conntrack_tuple *tuple,
-	     enum nf_nat_manip_type maniptype,
-	     const union nf_conntrack_man_proto *min,
-	     const union nf_conntrack_man_proto *max)
-{
-	__be16 port;
-
-	if (maniptype == IP_NAT_MANIP_SRC)
-		port = tuple->src.u.udp.port;
-	else
-		port = tuple->dst.u.udp.port;
-
-	return ntohs(port) >= ntohs(min->udp.port) &&
-	       ntohs(port) <= ntohs(max->udp.port);
-}
+static u_int16_t udp_port_rover;
 
-static int
+static bool
 udp_unique_tuple(struct nf_conntrack_tuple *tuple,
 		 const struct nf_nat_range *range,
 		 enum nf_nat_manip_type maniptype,
 		 const struct nf_conn *ct)
 {
-	static u_int16_t port;
-	__be16 *portptr;
-	unsigned int range_size, min, i;
-
-	if (maniptype == IP_NAT_MANIP_SRC)
-		portptr = &tuple->src.u.udp.port;
-	else
-		portptr = &tuple->dst.u.udp.port;
-
-	/* If no range specified... */
-	if (!(range->flags & IP_NAT_RANGE_PROTO_SPECIFIED)) {
-		/* If it's dst rewrite, can't change port */
-		if (maniptype == IP_NAT_MANIP_DST)
-			return 0;
-
-		if (ntohs(*portptr) < 1024) {
-			/* Loose convention: >> 512 is credential passing */
-			if (ntohs(*portptr)<512) {
-				min = 1;
-				range_size = 511 - min + 1;
-			} else {
-				min = 600;
-				range_size = 1023 - min + 1;
-			}
-		} else {
-			min = 1024;
-			range_size = 65535 - 1024 + 1;
-		}
-	} else {
-		min = ntohs(range->min.udp.port);
-		range_size = ntohs(range->max.udp.port) - min + 1;
-	}
-
-	if (range->flags & IP_NAT_RANGE_PROTO_RANDOM)
-		port = net_random();
-
-	for (i = 0; i < range_size; i++, port++) {
-		*portptr = htons(min + port % range_size);
-		if (!nf_nat_used_tuple(tuple, ct))
-			return 1;
-	}
-	return 0;
+	return nf_nat_proto_unique_tuple(tuple, range, maniptype, ct,
+					 &udp_port_rover);
 }
 
-static int
+static bool
 udp_manip_pkt(struct sk_buff *skb,
 	      unsigned int iphdroff,
 	      const struct nf_conntrack_tuple *tuple,
@@ -98,7 +42,7 @@ udp_manip_pkt(struct sk_buff *skb,
 	__be16 *portptr, newport;
 
 	if (!skb_make_writable(skb, hdroff + sizeof(*hdr)))
-		return 0;
+		return false;
 
 	iph = (struct iphdr *)(skb->data + iphdroff);
 	hdr = (struct udphdr *)(skb->data + hdroff);
@@ -124,18 +68,17 @@ udp_manip_pkt(struct sk_buff *skb,
 			hdr->check = CSUM_MANGLED_0;
 	}
 	*portptr = newport;
-	return 1;
+	return true;
 }
 
 const struct nf_nat_protocol nf_nat_protocol_udp = {
-	.name			= "UDP",
 	.protonum		= IPPROTO_UDP,
 	.me			= THIS_MODULE,
 	.manip_pkt		= udp_manip_pkt,
-	.in_range		= udp_in_range,
+	.in_range		= nf_nat_proto_in_range,
 	.unique_tuple		= udp_unique_tuple,
 #if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE)
-	.range_to_nlattr	= nf_nat_port_range_to_nlattr,
-	.nlattr_to_range	= nf_nat_port_nlattr_to_range,
+	.range_to_nlattr	= nf_nat_proto_range_to_nlattr,
+	.nlattr_to_range	= nf_nat_proto_nlattr_to_range,
 #endif
 };
diff --git a/net/ipv4/netfilter/nf_nat_proto_udplite.c b/net/ipv4/netfilter/nf_nat_proto_udplite.c
new file mode 100644
index 000000000000..440a229bbd87
--- /dev/null
+++ b/net/ipv4/netfilter/nf_nat_proto_udplite.c
@@ -0,0 +1,99 @@
+/* (C) 1999-2001 Paul `Rusty' Russell
+ * (C) 2002-2006 Netfilter Core Team <coreteam@netfilter.org>
+ * (C) 2008 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/types.h>
+#include <linux/init.h>
+#include <linux/ip.h>
+#include <linux/udp.h>
+
+#include <linux/netfilter.h>
+#include <net/netfilter/nf_nat.h>
+#include <net/netfilter/nf_nat_protocol.h>
+
+static u_int16_t udplite_port_rover;
+
+static bool
+udplite_unique_tuple(struct nf_conntrack_tuple *tuple,
+		     const struct nf_nat_range *range,
+		     enum nf_nat_manip_type maniptype,
+		     const struct nf_conn *ct)
+{
+	return nf_nat_proto_unique_tuple(tuple, range, maniptype, ct,
+					 &udplite_port_rover);
+}
+
+static bool
+udplite_manip_pkt(struct sk_buff *skb,
+		  unsigned int iphdroff,
+		  const struct nf_conntrack_tuple *tuple,
+		  enum nf_nat_manip_type maniptype)
+{
+	const struct iphdr *iph = (struct iphdr *)(skb->data + iphdroff);
+	struct udphdr *hdr;
+	unsigned int hdroff = iphdroff + iph->ihl*4;
+	__be32 oldip, newip;
+	__be16 *portptr, newport;
+
+	if (!skb_make_writable(skb, hdroff + sizeof(*hdr)))
+		return false;
+
+	iph = (struct iphdr *)(skb->data + iphdroff);
+	hdr = (struct udphdr *)(skb->data + hdroff);
+
+	if (maniptype == IP_NAT_MANIP_SRC) {
+		/* Get rid of src ip and src pt */
+		oldip = iph->saddr;
+		newip = tuple->src.u3.ip;
+		newport = tuple->src.u.udp.port;
+		portptr = &hdr->source;
+	} else {
+		/* Get rid of dst ip and dst pt */
+		oldip = iph->daddr;
+		newip = tuple->dst.u3.ip;
+		newport = tuple->dst.u.udp.port;
+		portptr = &hdr->dest;
+	}
+
+	inet_proto_csum_replace4(&hdr->check, skb, oldip, newip, 1);
+	inet_proto_csum_replace2(&hdr->check, skb, *portptr, newport, 0);
+	if (!hdr->check)
+		hdr->check = CSUM_MANGLED_0;
+
+	*portptr = newport;
+	return true;
+}
+
+static const struct nf_nat_protocol nf_nat_protocol_udplite = {
+	.protonum		= IPPROTO_UDPLITE,
+	.me			= THIS_MODULE,
+	.manip_pkt		= udplite_manip_pkt,
+	.in_range		= nf_nat_proto_in_range,
+	.unique_tuple		= udplite_unique_tuple,
+#if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE)
+	.range_to_nlattr	= nf_nat_proto_range_to_nlattr,
+	.nlattr_to_range	= nf_nat_proto_nlattr_to_range,
+#endif
+};
+
+static int __init nf_nat_proto_udplite_init(void)
+{
+	return nf_nat_protocol_register(&nf_nat_protocol_udplite);
+}
+
+static void __exit nf_nat_proto_udplite_fini(void)
+{
+	nf_nat_protocol_unregister(&nf_nat_protocol_udplite);
+}
+
+module_init(nf_nat_proto_udplite_init);
+module_exit(nf_nat_proto_udplite_fini);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("UDP-Lite NAT protocol helper");
+MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
diff --git a/net/ipv4/netfilter/nf_nat_proto_unknown.c b/net/ipv4/netfilter/nf_nat_proto_unknown.c
index a26efeb073cb..14381c62acea 100644
--- a/net/ipv4/netfilter/nf_nat_proto_unknown.c
+++ b/net/ipv4/netfilter/nf_nat_proto_unknown.c
@@ -18,35 +18,34 @@
 #include <net/netfilter/nf_nat_rule.h>
 #include <net/netfilter/nf_nat_protocol.h>
 
-static int unknown_in_range(const struct nf_conntrack_tuple *tuple,
-			    enum nf_nat_manip_type manip_type,
-			    const union nf_conntrack_man_proto *min,
-			    const union nf_conntrack_man_proto *max)
+static bool unknown_in_range(const struct nf_conntrack_tuple *tuple,
+			     enum nf_nat_manip_type manip_type,
+			     const union nf_conntrack_man_proto *min,
+			     const union nf_conntrack_man_proto *max)
 {
-	return 1;
+	return true;
 }
 
-static int unknown_unique_tuple(struct nf_conntrack_tuple *tuple,
-				const struct nf_nat_range *range,
-				enum nf_nat_manip_type maniptype,
-				const struct nf_conn *ct)
+static bool unknown_unique_tuple(struct nf_conntrack_tuple *tuple,
+				 const struct nf_nat_range *range,
+				 enum nf_nat_manip_type maniptype,
+				 const struct nf_conn *ct)
 {
 	/* Sorry: we can't help you; if it's not unique, we can't frob
 	   anything. */
-	return 0;
+	return false;
 }
 
-static int
+static bool
 unknown_manip_pkt(struct sk_buff *skb,
 		  unsigned int iphdroff,
 		  const struct nf_conntrack_tuple *tuple,
 		  enum nf_nat_manip_type maniptype)
 {
-	return 1;
+	return true;
 }
 
 const struct nf_nat_protocol nf_nat_unknown_protocol = {
-	.name			= "unknown",
 	/* .me isn't set: getting a ref to this cannot fail. */
 	.manip_pkt		= unknown_manip_pkt,
 	.in_range		= unknown_in_range,
diff --git a/net/ipv4/netfilter/nf_nat_rule.c b/net/ipv4/netfilter/nf_nat_rule.c
index f8fda57ba20b..e8b4d0d4439e 100644
--- a/net/ipv4/netfilter/nf_nat_rule.c
+++ b/net/ipv4/netfilter/nf_nat_rule.c
@@ -61,7 +61,7 @@ static struct
 static struct xt_table __nat_table = {
 	.name		= "nat",
 	.valid_hooks	= NAT_VALID_HOOKS,
-	.lock		= RW_LOCK_UNLOCKED,
+	.lock		= __RW_LOCK_UNLOCKED(__nat_table.lock),
 	.me		= THIS_MODULE,
 	.af		= AF_INET,
 };
@@ -143,7 +143,7 @@ static bool ipt_snat_checkentry(const char *tablename,
 				void *targinfo,
 				unsigned int hook_mask)
 {
-	struct nf_nat_multi_range_compat *mr = targinfo;
+	const struct nf_nat_multi_range_compat *mr = targinfo;
 
 	/* Must be a valid range */
 	if (mr->rangesize != 1) {
@@ -159,7 +159,7 @@ static bool ipt_dnat_checkentry(const char *tablename,
 				void *targinfo,
 				unsigned int hook_mask)
 {
-	struct nf_nat_multi_range_compat *mr = targinfo;
+	const struct nf_nat_multi_range_compat *mr = targinfo;
 
 	/* Must be a valid range */
 	if (mr->rangesize != 1) {
@@ -188,25 +188,6 @@ alloc_null_binding(struct nf_conn *ct, unsigned int hooknum)
 	return nf_nat_setup_info(ct, &range, HOOK2MANIP(hooknum));
 }
 
-unsigned int
-alloc_null_binding_confirmed(struct nf_conn *ct, unsigned int hooknum)
-{
-	__be32 ip
-		= (HOOK2MANIP(hooknum) == IP_NAT_MANIP_SRC
-		   ? ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.u3.ip
-		   : ct->tuplehash[IP_CT_DIR_REPLY].tuple.src.u3.ip);
-	__be16 all
-		= (HOOK2MANIP(hooknum) == IP_NAT_MANIP_SRC
-		   ? ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.u.all
-		   : ct->tuplehash[IP_CT_DIR_REPLY].tuple.src.u.all);
-	struct nf_nat_range range
-		= { IP_NAT_RANGE_MAP_IPS, ip, ip, { all }, { all } };
-
-	pr_debug("Allocating NULL binding for confirmed %p (%u.%u.%u.%u)\n",
-		 ct, NIPQUAD(ip));
-	return nf_nat_setup_info(ct, &range, HOOK2MANIP(hooknum));
-}
-
 int nf_nat_rule_find(struct sk_buff *skb,
 		     unsigned int hooknum,
 		     const struct net_device *in,
diff --git a/net/ipv4/netfilter/nf_nat_sip.c b/net/ipv4/netfilter/nf_nat_sip.c
index b4c8d4968bb2..4334d5cabc5b 100644
--- a/net/ipv4/netfilter/nf_nat_sip.c
+++ b/net/ipv4/netfilter/nf_nat_sip.c
@@ -2,6 +2,8 @@
  *
  * (C) 2005 by Christian Hentschel <chentschel@arnet.com.ar>
  * based on RR's ip_nat_ftp.c and other modules.
+ * (C) 2007 United Security Providers
+ * (C) 2007, 2008 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
@@ -26,275 +28,461 @@ MODULE_AUTHOR("Christian Hentschel <chentschel@arnet.com.ar>");
 MODULE_DESCRIPTION("SIP NAT helper");
 MODULE_ALIAS("ip_nat_sip");
 
-struct addr_map {
-	struct {
-		char		src[sizeof("nnn.nnn.nnn.nnn:nnnnn")];
-		char		dst[sizeof("nnn.nnn.nnn.nnn:nnnnn")];
-		unsigned int	srclen, srciplen;
-		unsigned int	dstlen, dstiplen;
-	} addr[IP_CT_DIR_MAX];
-};
 
-static void addr_map_init(const struct nf_conn *ct, struct addr_map *map)
+static unsigned int mangle_packet(struct sk_buff *skb,
+				  const char **dptr, unsigned int *datalen,
+				  unsigned int matchoff, unsigned int matchlen,
+				  const char *buffer, unsigned int buflen)
 {
-	const struct nf_conntrack_tuple *t;
-	enum ip_conntrack_dir dir;
-	unsigned int n;
-
-	for (dir = 0; dir < IP_CT_DIR_MAX; dir++) {
-		t = &ct->tuplehash[dir].tuple;
-
-		n = sprintf(map->addr[dir].src, "%u.%u.%u.%u",
-			    NIPQUAD(t->src.u3.ip));
-		map->addr[dir].srciplen = n;
-		n += sprintf(map->addr[dir].src + n, ":%u",
-			     ntohs(t->src.u.udp.port));
-		map->addr[dir].srclen = n;
-
-		n = sprintf(map->addr[dir].dst, "%u.%u.%u.%u",
-			    NIPQUAD(t->dst.u3.ip));
-		map->addr[dir].dstiplen = n;
-		n += sprintf(map->addr[dir].dst + n, ":%u",
-			     ntohs(t->dst.u.udp.port));
-		map->addr[dir].dstlen = n;
-	}
+	enum ip_conntrack_info ctinfo;
+	struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
+
+	if (!nf_nat_mangle_udp_packet(skb, ct, ctinfo, matchoff, matchlen,
+				      buffer, buflen))
+		return 0;
+
+	/* Reload data pointer and adjust datalen value */
+	*dptr = skb->data + ip_hdrlen(skb) + sizeof(struct udphdr);
+	*datalen += buflen - matchlen;
+	return 1;
 }
 
-static int map_sip_addr(struct sk_buff *skb, enum ip_conntrack_info ctinfo,
-			struct nf_conn *ct, const char **dptr, size_t dlen,
-			enum sip_header_pos pos, struct addr_map *map)
+static int map_addr(struct sk_buff *skb,
+		    const char **dptr, unsigned int *datalen,
+		    unsigned int matchoff, unsigned int matchlen,
+		    union nf_inet_addr *addr, __be16 port)
 {
+	enum ip_conntrack_info ctinfo;
+	struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
 	enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
-	unsigned int matchlen, matchoff, addrlen;
-	char *addr;
-
-	if (ct_sip_get_info(ct, *dptr, dlen, &matchoff, &matchlen, pos) <= 0)
+	char buffer[sizeof("nnn.nnn.nnn.nnn:nnnnn")];
+	unsigned int buflen;
+	__be32 newaddr;
+	__be16 newport;
+
+	if (ct->tuplehash[dir].tuple.src.u3.ip == addr->ip &&
+	    ct->tuplehash[dir].tuple.src.u.udp.port == port) {
+		newaddr = ct->tuplehash[!dir].tuple.dst.u3.ip;
+		newport = ct->tuplehash[!dir].tuple.dst.u.udp.port;
+	} else if (ct->tuplehash[dir].tuple.dst.u3.ip == addr->ip &&
+		   ct->tuplehash[dir].tuple.dst.u.udp.port == port) {
+		newaddr = ct->tuplehash[!dir].tuple.src.u3.ip;
+		newport = ct->tuplehash[!dir].tuple.src.u.udp.port;
+	} else
 		return 1;
 
-	if ((matchlen == map->addr[dir].srciplen ||
-	     matchlen == map->addr[dir].srclen) &&
-	    memcmp(*dptr + matchoff, map->addr[dir].src, matchlen) == 0) {
-		addr    = map->addr[!dir].dst;
-		addrlen = map->addr[!dir].dstlen;
-	} else if ((matchlen == map->addr[dir].dstiplen ||
-		    matchlen == map->addr[dir].dstlen) &&
-		   memcmp(*dptr + matchoff, map->addr[dir].dst, matchlen) == 0) {
-		addr    = map->addr[!dir].src;
-		addrlen = map->addr[!dir].srclen;
-	} else
+	if (newaddr == addr->ip && newport == port)
 		return 1;
 
-	if (!nf_nat_mangle_udp_packet(skb, ct, ctinfo,
-				      matchoff, matchlen, addr, addrlen))
-		return 0;
-	*dptr = skb->data + ip_hdrlen(skb) + sizeof(struct udphdr);
-	return 1;
+	buflen = sprintf(buffer, "%u.%u.%u.%u:%u",
+			 NIPQUAD(newaddr), ntohs(newport));
 
+	return mangle_packet(skb, dptr, datalen, matchoff, matchlen,
+			     buffer, buflen);
 }
 
-static unsigned int ip_nat_sip(struct sk_buff *skb,
-			       enum ip_conntrack_info ctinfo,
-			       struct nf_conn *ct,
-			       const char **dptr)
+static int map_sip_addr(struct sk_buff *skb,
+			const char **dptr, unsigned int *datalen,
+			enum sip_header_types type)
 {
-	enum sip_header_pos pos;
-	struct addr_map map;
-	int dataoff, datalen;
+	enum ip_conntrack_info ctinfo;
+	struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
+	unsigned int matchlen, matchoff;
+	union nf_inet_addr addr;
+	__be16 port;
 
-	dataoff = ip_hdrlen(skb) + sizeof(struct udphdr);
-	datalen = skb->len - dataoff;
-	if (datalen < sizeof("SIP/2.0") - 1)
-		return NF_ACCEPT;
+	if (ct_sip_parse_header_uri(ct, *dptr, NULL, *datalen, type, NULL,
+				    &matchoff, &matchlen, &addr, &port) <= 0)
+		return 1;
+	return map_addr(skb, dptr, datalen, matchoff, matchlen, &addr, port);
+}
 
-	addr_map_init(ct, &map);
+static unsigned int ip_nat_sip(struct sk_buff *skb,
+			       const char **dptr, unsigned int *datalen)
+{
+	enum ip_conntrack_info ctinfo;
+	struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
+	enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
+	unsigned int dataoff, matchoff, matchlen;
+	union nf_inet_addr addr;
+	__be16 port;
+	int request, in_header;
 
 	/* Basic rules: requests and responses. */
-	if (strncmp(*dptr, "SIP/2.0", sizeof("SIP/2.0") - 1) != 0) {
-		/* 10.2: Constructing the REGISTER Request:
-		 *
-		 * The "userinfo" and "@" components of the SIP URI MUST NOT
-		 * be present.
-		 */
-		if (datalen >= sizeof("REGISTER") - 1 &&
-		    strncmp(*dptr, "REGISTER", sizeof("REGISTER") - 1) == 0)
-			pos = POS_REG_REQ_URI;
-		else
-			pos = POS_REQ_URI;
-
-		if (!map_sip_addr(skb, ctinfo, ct, dptr, datalen, pos, &map))
+	if (strnicmp(*dptr, "SIP/2.0", strlen("SIP/2.0")) != 0) {
+		if (ct_sip_parse_request(ct, *dptr, *datalen,
+					 &matchoff, &matchlen,
+					 &addr, &port) > 0 &&
+		    !map_addr(skb, dptr, datalen, matchoff, matchlen,
+			      &addr, port))
+			return NF_DROP;
+		request = 1;
+	} else
+		request = 0;
+
+	/* Translate topmost Via header and parameters */
+	if (ct_sip_parse_header_uri(ct, *dptr, NULL, *datalen,
+				    SIP_HDR_VIA, NULL, &matchoff, &matchlen,
+				    &addr, &port) > 0) {
+		unsigned int matchend, poff, plen, buflen, n;
+		char buffer[sizeof("nnn.nnn.nnn.nnn:nnnnn")];
+
+		/* We're only interested in headers related to this
+		 * connection */
+		if (request) {
+			if (addr.ip != ct->tuplehash[dir].tuple.src.u3.ip ||
+			    port != ct->tuplehash[dir].tuple.src.u.udp.port)
+				goto next;
+		} else {
+			if (addr.ip != ct->tuplehash[dir].tuple.dst.u3.ip ||
+			    port != ct->tuplehash[dir].tuple.dst.u.udp.port)
+				goto next;
+		}
+
+		if (!map_addr(skb, dptr, datalen, matchoff, matchlen,
+			      &addr, port))
 			return NF_DROP;
+
+		matchend = matchoff + matchlen;
+
+		/* The maddr= parameter (RFC 2361) specifies where to send
+		 * the reply. */
+		if (ct_sip_parse_address_param(ct, *dptr, matchend, *datalen,
+					       "maddr=", &poff, &plen,
+					       &addr) > 0 &&
+		    addr.ip == ct->tuplehash[dir].tuple.src.u3.ip &&
+		    addr.ip != ct->tuplehash[!dir].tuple.dst.u3.ip) {
+			__be32 ip = ct->tuplehash[!dir].tuple.dst.u3.ip;
+			buflen = sprintf(buffer, "%u.%u.%u.%u", NIPQUAD(ip));
+			if (!mangle_packet(skb, dptr, datalen, poff, plen,
+					   buffer, buflen))
+				return NF_DROP;
+		}
+
+		/* The received= parameter (RFC 2361) contains the address
+		 * from which the server received the request. */
+		if (ct_sip_parse_address_param(ct, *dptr, matchend, *datalen,
+					       "received=", &poff, &plen,
+					       &addr) > 0 &&
+		    addr.ip == ct->tuplehash[dir].tuple.dst.u3.ip &&
+		    addr.ip != ct->tuplehash[!dir].tuple.src.u3.ip) {
+			__be32 ip = ct->tuplehash[!dir].tuple.src.u3.ip;
+			buflen = sprintf(buffer, "%u.%u.%u.%u", NIPQUAD(ip));
+			if (!mangle_packet(skb, dptr, datalen, poff, plen,
+					   buffer, buflen))
+				return NF_DROP;
+		}
+
+		/* The rport= parameter (RFC 3581) contains the port number
+		 * from which the server received the request. */
+		if (ct_sip_parse_numerical_param(ct, *dptr, matchend, *datalen,
+						 "rport=", &poff, &plen,
+						 &n) > 0 &&
+		    htons(n) == ct->tuplehash[dir].tuple.dst.u.udp.port &&
+		    htons(n) != ct->tuplehash[!dir].tuple.src.u.udp.port) {
+			__be16 p = ct->tuplehash[!dir].tuple.src.u.udp.port;
+			buflen = sprintf(buffer, "%u", ntohs(p));
+			if (!mangle_packet(skb, dptr, datalen, poff, plen,
+					   buffer, buflen))
+				return NF_DROP;
+		}
 	}
 
-	if (!map_sip_addr(skb, ctinfo, ct, dptr, datalen, POS_FROM, &map) ||
-	    !map_sip_addr(skb, ctinfo, ct, dptr, datalen, POS_TO, &map) ||
-	    !map_sip_addr(skb, ctinfo, ct, dptr, datalen, POS_VIA, &map) ||
-	    !map_sip_addr(skb, ctinfo, ct, dptr, datalen, POS_CONTACT, &map))
+next:
+	/* Translate Contact headers */
+	dataoff = 0;
+	in_header = 0;
+	while (ct_sip_parse_header_uri(ct, *dptr, &dataoff, *datalen,
+				       SIP_HDR_CONTACT, &in_header,
+				       &matchoff, &matchlen,
+				       &addr, &port) > 0) {
+		if (!map_addr(skb, dptr, datalen, matchoff, matchlen,
+			      &addr, port))
+			return NF_DROP;
+	}
+
+	if (!map_sip_addr(skb, dptr, datalen, SIP_HDR_FROM) ||
+	    !map_sip_addr(skb, dptr, datalen, SIP_HDR_TO))
 		return NF_DROP;
 	return NF_ACCEPT;
 }
 
-static unsigned int mangle_sip_packet(struct sk_buff *skb,
-				      enum ip_conntrack_info ctinfo,
-				      struct nf_conn *ct,
-				      const char **dptr, size_t dlen,
-				      char *buffer, int bufflen,
-				      enum sip_header_pos pos)
+/* Handles expected signalling connections and media streams */
+static void ip_nat_sip_expected(struct nf_conn *ct,
+				struct nf_conntrack_expect *exp)
 {
-	unsigned int matchlen, matchoff;
+	struct nf_nat_range range;
 
-	if (ct_sip_get_info(ct, *dptr, dlen, &matchoff, &matchlen, pos) <= 0)
-		return 0;
+	/* This must be a fresh one. */
+	BUG_ON(ct->status & IPS_NAT_DONE_MASK);
 
-	if (!nf_nat_mangle_udp_packet(skb, ct, ctinfo,
-				      matchoff, matchlen, buffer, bufflen))
-		return 0;
+	/* For DST manip, map port here to where it's expected. */
+	range.flags = (IP_NAT_RANGE_MAP_IPS | IP_NAT_RANGE_PROTO_SPECIFIED);
+	range.min = range.max = exp->saved_proto;
+	range.min_ip = range.max_ip = exp->saved_ip;
+	nf_nat_setup_info(ct, &range, IP_NAT_MANIP_DST);
 
-	/* We need to reload this. Thanks Patrick. */
-	*dptr = skb->data + ip_hdrlen(skb) + sizeof(struct udphdr);
-	return 1;
+	/* Change src to where master sends to, but only if the connection
+	 * actually came from the same source. */
+	if (ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.u3.ip ==
+	    ct->master->tuplehash[exp->dir].tuple.src.u3.ip) {
+		range.flags = IP_NAT_RANGE_MAP_IPS;
+		range.min_ip = range.max_ip
+			= ct->master->tuplehash[!exp->dir].tuple.dst.u3.ip;
+		nf_nat_setup_info(ct, &range, IP_NAT_MANIP_SRC);
+	}
 }
 
-static int mangle_content_len(struct sk_buff *skb,
-			      enum ip_conntrack_info ctinfo,
-			      struct nf_conn *ct,
-			      const char *dptr)
+static unsigned int ip_nat_sip_expect(struct sk_buff *skb,
+				      const char **dptr, unsigned int *datalen,
+				      struct nf_conntrack_expect *exp,
+				      unsigned int matchoff,
+				      unsigned int matchlen)
 {
-	unsigned int dataoff, matchoff, matchlen;
-	char buffer[sizeof("65536")];
-	int bufflen;
+	enum ip_conntrack_info ctinfo;
+	struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
+	enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
+	__be32 newip;
+	u_int16_t port;
+	char buffer[sizeof("nnn.nnn.nnn.nnn:nnnnn")];
+	unsigned buflen;
 
-	dataoff = ip_hdrlen(skb) + sizeof(struct udphdr);
+	/* Connection will come from reply */
+	if (ct->tuplehash[dir].tuple.src.u3.ip == ct->tuplehash[!dir].tuple.dst.u3.ip)
+		newip = exp->tuple.dst.u3.ip;
+	else
+		newip = ct->tuplehash[!dir].tuple.dst.u3.ip;
 
-	/* Get actual SDP length */
-	if (ct_sip_get_info(ct, dptr, skb->len - dataoff, &matchoff,
-			    &matchlen, POS_SDP_HEADER) > 0) {
+	/* If the signalling port matches the connection's source port in the
+	 * original direction, try to use the destination port in the opposite
+	 * direction. */
+	if (exp->tuple.dst.u.udp.port ==
+	    ct->tuplehash[dir].tuple.src.u.udp.port)
+		port = ntohs(ct->tuplehash[!dir].tuple.dst.u.udp.port);
+	else
+		port = ntohs(exp->tuple.dst.u.udp.port);
+
+	exp->saved_ip = exp->tuple.dst.u3.ip;
+	exp->tuple.dst.u3.ip = newip;
+	exp->saved_proto.udp.port = exp->tuple.dst.u.udp.port;
+	exp->dir = !dir;
+	exp->expectfn = ip_nat_sip_expected;
 
-		/* since ct_sip_get_info() give us a pointer passing 'v='
-		   we need to add 2 bytes in this count. */
-		int c_len = skb->len - dataoff - matchoff + 2;
+	for (; port != 0; port++) {
+		exp->tuple.dst.u.udp.port = htons(port);
+		if (nf_ct_expect_related(exp) == 0)
+			break;
+	}
 
-		/* Now, update SDP length */
-		if (ct_sip_get_info(ct, dptr, skb->len - dataoff, &matchoff,
-				    &matchlen, POS_CONTENT) > 0) {
+	if (port == 0)
+		return NF_DROP;
 
-			bufflen = sprintf(buffer, "%u", c_len);
-			return nf_nat_mangle_udp_packet(skb, ct, ctinfo,
-							matchoff, matchlen,
-							buffer, bufflen);
-		}
+	if (exp->tuple.dst.u3.ip != exp->saved_ip ||
+	    exp->tuple.dst.u.udp.port != exp->saved_proto.udp.port) {
+		buflen = sprintf(buffer, "%u.%u.%u.%u:%u",
+				 NIPQUAD(newip), port);
+		if (!mangle_packet(skb, dptr, datalen, matchoff, matchlen,
+				   buffer, buflen))
+			goto err;
 	}
-	return 0;
+	return NF_ACCEPT;
+
+err:
+	nf_ct_unexpect_related(exp);
+	return NF_DROP;
 }
 
-static unsigned int mangle_sdp(struct sk_buff *skb,
-			       enum ip_conntrack_info ctinfo,
-			       struct nf_conn *ct,
-			       __be32 newip, u_int16_t port,
-			       const char *dptr)
+static int mangle_content_len(struct sk_buff *skb,
+			      const char **dptr, unsigned int *datalen)
 {
-	char buffer[sizeof("nnn.nnn.nnn.nnn")];
-	unsigned int dataoff, bufflen;
+	enum ip_conntrack_info ctinfo;
+	struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
+	unsigned int matchoff, matchlen;
+	char buffer[sizeof("65536")];
+	int buflen, c_len;
 
-	dataoff = ip_hdrlen(skb) + sizeof(struct udphdr);
+	/* Get actual SDP length */
+	if (ct_sip_get_sdp_header(ct, *dptr, 0, *datalen,
+				  SDP_HDR_VERSION, SDP_HDR_UNSPEC,
+				  &matchoff, &matchlen) <= 0)
+		return 0;
+	c_len = *datalen - matchoff + strlen("v=");
 
-	/* Mangle owner and contact info. */
-	bufflen = sprintf(buffer, "%u.%u.%u.%u", NIPQUAD(newip));
-	if (!mangle_sip_packet(skb, ctinfo, ct, &dptr, skb->len - dataoff,
-			       buffer, bufflen, POS_OWNER_IP4))
+	/* Now, update SDP length */
+	if (ct_sip_get_header(ct, *dptr, 0, *datalen, SIP_HDR_CONTENT_LENGTH,
+			      &matchoff, &matchlen) <= 0)
 		return 0;
 
-	if (!mangle_sip_packet(skb, ctinfo, ct, &dptr, skb->len - dataoff,
-			       buffer, bufflen, POS_CONNECTION_IP4))
+	buflen = sprintf(buffer, "%u", c_len);
+	return mangle_packet(skb, dptr, datalen, matchoff, matchlen,
+			     buffer, buflen);
+}
+
+static unsigned mangle_sdp_packet(struct sk_buff *skb, const char **dptr,
+				  unsigned int dataoff, unsigned int *datalen,
+				  enum sdp_header_types type,
+				  enum sdp_header_types term,
+				  char *buffer, int buflen)
+{
+	enum ip_conntrack_info ctinfo;
+	struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
+	unsigned int matchlen, matchoff;
+
+	if (ct_sip_get_sdp_header(ct, *dptr, dataoff, *datalen, type, term,
+				  &matchoff, &matchlen) <= 0)
 		return 0;
+	return mangle_packet(skb, dptr, datalen, matchoff, matchlen,
+			     buffer, buflen);
+}
 
-	/* Mangle media port. */
-	bufflen = sprintf(buffer, "%u", port);
-	if (!mangle_sip_packet(skb, ctinfo, ct, &dptr, skb->len - dataoff,
-			       buffer, bufflen, POS_MEDIA))
+static unsigned int ip_nat_sdp_addr(struct sk_buff *skb, const char **dptr,
+				    unsigned int dataoff,
+				    unsigned int *datalen,
+				    enum sdp_header_types type,
+				    enum sdp_header_types term,
+				    const union nf_inet_addr *addr)
+{
+	char buffer[sizeof("nnn.nnn.nnn.nnn")];
+	unsigned int buflen;
+
+	buflen = sprintf(buffer, NIPQUAD_FMT, NIPQUAD(addr->ip));
+	if (!mangle_sdp_packet(skb, dptr, dataoff, datalen, type, term,
+			       buffer, buflen))
 		return 0;
 
-	return mangle_content_len(skb, ctinfo, ct, dptr);
+	return mangle_content_len(skb, dptr, datalen);
 }
 
-static void ip_nat_sdp_expect(struct nf_conn *ct,
-			      struct nf_conntrack_expect *exp)
+static unsigned int ip_nat_sdp_port(struct sk_buff *skb,
+				    const char **dptr,
+				    unsigned int *datalen,
+				    unsigned int matchoff,
+				    unsigned int matchlen,
+				    u_int16_t port)
 {
-	struct nf_nat_range range;
+	char buffer[sizeof("nnnnn")];
+	unsigned int buflen;
 
-	/* This must be a fresh one. */
-	BUG_ON(ct->status & IPS_NAT_DONE_MASK);
+	buflen = sprintf(buffer, "%u", port);
+	if (!mangle_packet(skb, dptr, datalen, matchoff, matchlen,
+			   buffer, buflen))
+		return 0;
 
-	/* Change src to where master sends to */
-	range.flags = IP_NAT_RANGE_MAP_IPS;
-	range.min_ip = range.max_ip
-		= ct->master->tuplehash[!exp->dir].tuple.dst.u3.ip;
-	nf_nat_setup_info(ct, &range, IP_NAT_MANIP_SRC);
+	return mangle_content_len(skb, dptr, datalen);
+}
 
-	/* For DST manip, map port here to where it's expected. */
-	range.flags = (IP_NAT_RANGE_MAP_IPS | IP_NAT_RANGE_PROTO_SPECIFIED);
-	range.min = range.max = exp->saved_proto;
-	range.min_ip = range.max_ip = exp->saved_ip;
-	nf_nat_setup_info(ct, &range, IP_NAT_MANIP_DST);
+static unsigned int ip_nat_sdp_session(struct sk_buff *skb, const char **dptr,
+				       unsigned int dataoff,
+				       unsigned int *datalen,
+				       const union nf_inet_addr *addr)
+{
+	char buffer[sizeof("nnn.nnn.nnn.nnn")];
+	unsigned int buflen;
+
+	/* Mangle session description owner and contact addresses */
+	buflen = sprintf(buffer, "%u.%u.%u.%u", NIPQUAD(addr->ip));
+	if (!mangle_sdp_packet(skb, dptr, dataoff, datalen,
+			       SDP_HDR_OWNER_IP4, SDP_HDR_MEDIA,
+			       buffer, buflen))
+		return 0;
+
+	if (!mangle_sdp_packet(skb, dptr, dataoff, datalen,
+			       SDP_HDR_CONNECTION_IP4, SDP_HDR_MEDIA,
+			       buffer, buflen))
+		return 0;
+
+	return mangle_content_len(skb, dptr, datalen);
 }
 
 /* So, this packet has hit the connection tracking matching code.
    Mangle it, and change the expectation to match the new version. */
-static unsigned int ip_nat_sdp(struct sk_buff *skb,
-			       enum ip_conntrack_info ctinfo,
-			       struct nf_conntrack_expect *exp,
-			       const char *dptr)
+static unsigned int ip_nat_sdp_media(struct sk_buff *skb,
+				     const char **dptr,
+				     unsigned int *datalen,
+				     struct nf_conntrack_expect *rtp_exp,
+				     struct nf_conntrack_expect *rtcp_exp,
+				     unsigned int mediaoff,
+				     unsigned int medialen,
+				     union nf_inet_addr *rtp_addr)
 {
-	struct nf_conn *ct = exp->master;
+	enum ip_conntrack_info ctinfo;
+	struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
 	enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
-	__be32 newip;
 	u_int16_t port;
 
 	/* Connection will come from reply */
 	if (ct->tuplehash[dir].tuple.src.u3.ip ==
 	    ct->tuplehash[!dir].tuple.dst.u3.ip)
-		newip = exp->tuple.dst.u3.ip;
+		rtp_addr->ip = rtp_exp->tuple.dst.u3.ip;
 	else
-		newip = ct->tuplehash[!dir].tuple.dst.u3.ip;
-
-	exp->saved_ip = exp->tuple.dst.u3.ip;
-	exp->tuple.dst.u3.ip = newip;
-	exp->saved_proto.udp.port = exp->tuple.dst.u.udp.port;
-	exp->dir = !dir;
-
-	/* When you see the packet, we need to NAT it the same as the
-	   this one. */
-	exp->expectfn = ip_nat_sdp_expect;
-
-	/* Try to get same port: if not, try to change it. */
-	for (port = ntohs(exp->saved_proto.udp.port); port != 0; port++) {
-		exp->tuple.dst.u.udp.port = htons(port);
-		if (nf_ct_expect_related(exp) == 0)
+		rtp_addr->ip = ct->tuplehash[!dir].tuple.dst.u3.ip;
+
+	rtp_exp->saved_ip = rtp_exp->tuple.dst.u3.ip;
+	rtp_exp->tuple.dst.u3.ip = rtp_addr->ip;
+	rtp_exp->saved_proto.udp.port = rtp_exp->tuple.dst.u.udp.port;
+	rtp_exp->dir = !dir;
+	rtp_exp->expectfn = ip_nat_sip_expected;
+
+	rtcp_exp->saved_ip = rtcp_exp->tuple.dst.u3.ip;
+	rtcp_exp->tuple.dst.u3.ip = rtp_addr->ip;
+	rtcp_exp->saved_proto.udp.port = rtcp_exp->tuple.dst.u.udp.port;
+	rtcp_exp->dir = !dir;
+	rtcp_exp->expectfn = ip_nat_sip_expected;
+
+	/* Try to get same pair of ports: if not, try to change them. */
+	for (port = ntohs(rtp_exp->tuple.dst.u.udp.port);
+	     port != 0; port += 2) {
+		rtp_exp->tuple.dst.u.udp.port = htons(port);
+		if (nf_ct_expect_related(rtp_exp) != 0)
+			continue;
+		rtcp_exp->tuple.dst.u.udp.port = htons(port + 1);
+		if (nf_ct_expect_related(rtcp_exp) == 0)
 			break;
+		nf_ct_unexpect_related(rtp_exp);
 	}
 
 	if (port == 0)
-		return NF_DROP;
+		goto err1;
+
+	/* Update media port. */
+	if (rtp_exp->tuple.dst.u.udp.port != rtp_exp->saved_proto.udp.port &&
+	    !ip_nat_sdp_port(skb, dptr, datalen, mediaoff, medialen, port))
+		goto err2;
 
-	if (!mangle_sdp(skb, ctinfo, ct, newip, port, dptr)) {
-		nf_ct_unexpect_related(exp);
-		return NF_DROP;
-	}
 	return NF_ACCEPT;
+
+err2:
+	nf_ct_unexpect_related(rtp_exp);
+	nf_ct_unexpect_related(rtcp_exp);
+err1:
+	return NF_DROP;
 }
 
 static void __exit nf_nat_sip_fini(void)
 {
 	rcu_assign_pointer(nf_nat_sip_hook, NULL);
-	rcu_assign_pointer(nf_nat_sdp_hook, NULL);
+	rcu_assign_pointer(nf_nat_sip_expect_hook, NULL);
+	rcu_assign_pointer(nf_nat_sdp_addr_hook, NULL);
+	rcu_assign_pointer(nf_nat_sdp_port_hook, NULL);
+	rcu_assign_pointer(nf_nat_sdp_session_hook, NULL);
+	rcu_assign_pointer(nf_nat_sdp_media_hook, NULL);
 	synchronize_rcu();
 }
 
 static int __init nf_nat_sip_init(void)
 {
 	BUG_ON(nf_nat_sip_hook != NULL);
-	BUG_ON(nf_nat_sdp_hook != NULL);
+	BUG_ON(nf_nat_sip_expect_hook != NULL);
+	BUG_ON(nf_nat_sdp_addr_hook != NULL);
+	BUG_ON(nf_nat_sdp_port_hook != NULL);
+	BUG_ON(nf_nat_sdp_session_hook != NULL);
+	BUG_ON(nf_nat_sdp_media_hook != NULL);
 	rcu_assign_pointer(nf_nat_sip_hook, ip_nat_sip);
-	rcu_assign_pointer(nf_nat_sdp_hook, ip_nat_sdp);
+	rcu_assign_pointer(nf_nat_sip_expect_hook, ip_nat_sip_expect);
+	rcu_assign_pointer(nf_nat_sdp_addr_hook, ip_nat_sdp_addr);
+	rcu_assign_pointer(nf_nat_sdp_port_hook, ip_nat_sdp_port);
+	rcu_assign_pointer(nf_nat_sdp_session_hook, ip_nat_sdp_session);
+	rcu_assign_pointer(nf_nat_sdp_media_hook, ip_nat_sdp_media);
 	return 0;
 }
 
diff --git a/net/ipv4/netfilter/nf_nat_snmp_basic.c b/net/ipv4/netfilter/nf_nat_snmp_basic.c
index 540ce6ae887c..5daefad3d193 100644
--- a/net/ipv4/netfilter/nf_nat_snmp_basic.c
+++ b/net/ipv4/netfilter/nf_nat_snmp_basic.c
@@ -50,6 +50,7 @@
 #include <net/udp.h>
 
 #include <net/netfilter/nf_nat.h>
+#include <net/netfilter/nf_conntrack_expect.h>
 #include <net/netfilter/nf_conntrack_helper.h>
 #include <net/netfilter/nf_nat_helper.h>
 
@@ -219,7 +220,7 @@ static unsigned char asn1_length_decode(struct asn1_ctx *ctx,
 		if (ch < 0x80)
 			*len = ch;
 		else {
-			cnt = (unsigned char) (ch & 0x7F);
+			cnt = ch & 0x7F;
 			*len = 0;
 
 			while (cnt > 0) {
@@ -617,8 +618,7 @@ struct snmp_cnv
 	int syntax;
 };
 
-static struct snmp_cnv snmp_conv [] =
-{
+static const struct snmp_cnv snmp_conv[] = {
 	{ASN1_UNI, ASN1_NUL, SNMP_NULL},
 	{ASN1_UNI, ASN1_INT, SNMP_INTEGER},
 	{ASN1_UNI, ASN1_OTS, SNMP_OCTETSTR},
@@ -643,7 +643,7 @@ static unsigned char snmp_tag_cls2syntax(unsigned int tag,
 					 unsigned int cls,
 					 unsigned short *syntax)
 {
-	struct snmp_cnv *cnv;
+	const struct snmp_cnv *cnv;
 
 	cnv = snmp_conv;
 
@@ -903,7 +903,7 @@ static inline void mangle_address(unsigned char *begin,
 		u_int32_t old;
 
 		if (debug)
-			memcpy(&old, (unsigned char *)addr, sizeof(old));
+			memcpy(&old, addr, sizeof(old));
 
 		*addr = map->to;
 
@@ -998,7 +998,7 @@ err_id_free:
  *
  *****************************************************************************/
 
-static void hex_dump(unsigned char *buf, size_t len)
+static void hex_dump(const unsigned char *buf, size_t len)
 {
 	size_t i;
 
@@ -1079,7 +1079,7 @@ static int snmp_parse_mangle(unsigned char *msg,
 	if (cls != ASN1_CTX || con != ASN1_CON)
 		return 0;
 	if (debug > 1) {
-		unsigned char *pdus[] = {
+		static const unsigned char *const pdus[] = {
 			[SNMP_PDU_GET] = "get",
 			[SNMP_PDU_NEXT] = "get-next",
 			[SNMP_PDU_RESPONSE] = "response",
@@ -1231,8 +1231,8 @@ static int help(struct sk_buff *skb, unsigned int protoff,
 {
 	int dir = CTINFO2DIR(ctinfo);
 	unsigned int ret;
-	struct iphdr *iph = ip_hdr(skb);
-	struct udphdr *udph = (struct udphdr *)((u_int32_t *)iph + iph->ihl);
+	const struct iphdr *iph = ip_hdr(skb);
+	const struct udphdr *udph = (struct udphdr *)((__be32 *)iph + iph->ihl);
 
 	/* SNMP replies and originating SNMP traps get mangled */
 	if (udph->source == htons(SNMP_PORT) && dir != IP_CT_DIR_REPLY)
@@ -1267,11 +1267,15 @@ static int help(struct sk_buff *skb, unsigned int protoff,
 	return ret;
 }
 
+static const struct nf_conntrack_expect_policy snmp_exp_policy = {
+	.max_expected	= 0,
+	.timeout	= 180,
+};
+
 static struct nf_conntrack_helper snmp_helper __read_mostly = {
-	.max_expected		= 0,
-	.timeout		= 180,
 	.me			= THIS_MODULE,
 	.help			= help,
+	.expect_policy		= &snmp_exp_policy,
 	.name			= "snmp",
 	.tuple.src.l3num	= AF_INET,
 	.tuple.src.u.udp.port	= __constant_htons(SNMP_PORT),
@@ -1279,10 +1283,9 @@ static struct nf_conntrack_helper snmp_helper __read_mostly = {
 };
 
 static struct nf_conntrack_helper snmp_trap_helper __read_mostly = {
-	.max_expected		= 0,
-	.timeout		= 180,
 	.me			= THIS_MODULE,
 	.help			= help,
+	.expect_policy		= &snmp_exp_policy,
 	.name			= "snmp_trap",
 	.tuple.src.l3num	= AF_INET,
 	.tuple.src.u.udp.port	= __constant_htons(SNMP_TRAP_PORT),
diff --git a/net/ipv4/netfilter/nf_nat_standalone.c b/net/ipv4/netfilter/nf_nat_standalone.c
index 99b2c788d5a8..b7dd695691a0 100644
--- a/net/ipv4/netfilter/nf_nat_standalone.c
+++ b/net/ipv4/netfilter/nf_nat_standalone.c
@@ -30,8 +30,8 @@
 #ifdef CONFIG_XFRM
 static void nat_decode_session(struct sk_buff *skb, struct flowi *fl)
 {
-	struct nf_conn *ct;
-	struct nf_conntrack_tuple *t;
+	const struct nf_conn *ct;
+	const struct nf_conntrack_tuple *t;
 	enum ip_conntrack_info ctinfo;
 	enum ip_conntrack_dir dir;
 	unsigned long statusbit;
@@ -50,7 +50,10 @@ static void nat_decode_session(struct sk_buff *skb, struct flowi *fl)
 	if (ct->status & statusbit) {
 		fl->fl4_dst = t->dst.u3.ip;
 		if (t->dst.protonum == IPPROTO_TCP ||
-		    t->dst.protonum == IPPROTO_UDP)
+		    t->dst.protonum == IPPROTO_UDP ||
+		    t->dst.protonum == IPPROTO_UDPLITE ||
+		    t->dst.protonum == IPPROTO_DCCP ||
+		    t->dst.protonum == IPPROTO_SCTP)
 			fl->fl_ip_dport = t->dst.u.tcp.port;
 	}
 
@@ -59,7 +62,10 @@ static void nat_decode_session(struct sk_buff *skb, struct flowi *fl)
 	if (ct->status & statusbit) {
 		fl->fl4_src = t->src.u3.ip;
 		if (t->dst.protonum == IPPROTO_TCP ||
-		    t->dst.protonum == IPPROTO_UDP)
+		    t->dst.protonum == IPPROTO_UDP ||
+		    t->dst.protonum == IPPROTO_UDPLITE ||
+		    t->dst.protonum == IPPROTO_DCCP ||
+		    t->dst.protonum == IPPROTO_SCTP)
 			fl->fl_ip_sport = t->src.u.tcp.port;
 	}
 }
@@ -87,21 +93,8 @@ nf_nat_fn(unsigned int hooknum,
 	   have dropped it.  Hence it's the user's responsibilty to
 	   packet filter it out, or implement conntrack/NAT for that
 	   protocol. 8) --RR */
-	if (!ct) {
-		/* Exception: ICMP redirect to new connection (not in
-		   hash table yet).  We must not let this through, in
-		   case we're doing NAT to the same network. */
-		if (ip_hdr(skb)->protocol == IPPROTO_ICMP) {
-			struct icmphdr _hdr, *hp;
-
-			hp = skb_header_pointer(skb, ip_hdrlen(skb),
-						sizeof(_hdr), &_hdr);
-			if (hp != NULL &&
-			    hp->type == ICMP_REDIRECT)
-				return NF_DROP;
-		}
+	if (!ct)
 		return NF_ACCEPT;
-	}
 
 	/* Don't try to NAT if this packet is not conntracked */
 	if (ct == &nf_conntrack_untracked)
@@ -109,6 +102,9 @@ nf_nat_fn(unsigned int hooknum,
 
 	nat = nfct_nat(ct);
 	if (!nat) {
+		/* NAT module was loaded late. */
+		if (nf_ct_is_confirmed(ct))
+			return NF_ACCEPT;
 		nat = nf_ct_ext_add(ct, NF_CT_EXT_NAT, GFP_ATOMIC);
 		if (nat == NULL) {
 			pr_debug("failed to add NAT extension\n");
@@ -134,10 +130,7 @@ nf_nat_fn(unsigned int hooknum,
 		if (!nf_nat_initialized(ct, maniptype)) {
 			unsigned int ret;
 
-			if (unlikely(nf_ct_is_confirmed(ct)))
-				/* NAT module was loaded late */
-				ret = alloc_null_binding_confirmed(ct, hooknum);
-			else if (hooknum == NF_INET_LOCAL_IN)
+			if (hooknum == NF_INET_LOCAL_IN)
 				/* LOCAL_IN hook doesn't have a chain!  */
 				ret = alloc_null_binding(ct, hooknum);
 			else
@@ -189,7 +182,7 @@ nf_nat_out(unsigned int hooknum,
 	   int (*okfn)(struct sk_buff *))
 {
 #ifdef CONFIG_XFRM
-	struct nf_conn *ct;
+	const struct nf_conn *ct;
 	enum ip_conntrack_info ctinfo;
 #endif
 	unsigned int ret;
@@ -223,7 +216,7 @@ nf_nat_local_fn(unsigned int hooknum,
 		const struct net_device *out,
 		int (*okfn)(struct sk_buff *))
 {
-	struct nf_conn *ct;
+	const struct nf_conn *ct;
 	enum ip_conntrack_info ctinfo;
 	unsigned int ret;
 
@@ -252,25 +245,6 @@ nf_nat_local_fn(unsigned int hooknum,
 	return ret;
 }
 
-static unsigned int
-nf_nat_adjust(unsigned int hooknum,
-	      struct sk_buff *skb,
-	      const struct net_device *in,
-	      const struct net_device *out,
-	      int (*okfn)(struct sk_buff *))
-{
-	struct nf_conn *ct;
-	enum ip_conntrack_info ctinfo;
-
-	ct = nf_ct_get(skb, &ctinfo);
-	if (ct && test_bit(IPS_SEQ_ADJUST_BIT, &ct->status)) {
-		pr_debug("nf_nat_standalone: adjusting sequence number\n");
-		if (!nf_nat_seq_adjust(skb, ct, ctinfo))
-			return NF_DROP;
-	}
-	return NF_ACCEPT;
-}
-
 /* We must be after connection tracking and before packet filtering. */
 
 static struct nf_hook_ops nf_nat_ops[] __read_mostly = {
@@ -290,14 +264,6 @@ static struct nf_hook_ops nf_nat_ops[] __read_mostly = {
 		.hooknum	= NF_INET_POST_ROUTING,
 		.priority	= NF_IP_PRI_NAT_SRC,
 	},
-	/* After conntrack, adjust sequence number */
-	{
-		.hook		= nf_nat_adjust,
-		.owner		= THIS_MODULE,
-		.pf		= PF_INET,
-		.hooknum	= NF_INET_POST_ROUTING,
-		.priority	= NF_IP_PRI_NAT_SEQ_ADJUST,
-	},
 	/* Before packet filtering, change destination */
 	{
 		.hook		= nf_nat_local_fn,
@@ -314,14 +280,6 @@ static struct nf_hook_ops nf_nat_ops[] __read_mostly = {
 		.hooknum	= NF_INET_LOCAL_IN,
 		.priority	= NF_IP_PRI_NAT_SRC,
 	},
-	/* After conntrack, adjust sequence number */
-	{
-		.hook		= nf_nat_adjust,
-		.owner		= THIS_MODULE,
-		.pf		= PF_INET,
-		.hooknum	= NF_INET_LOCAL_IN,
-		.priority	= NF_IP_PRI_NAT_SEQ_ADJUST,
-	},
 };
 
 static int __init nf_nat_standalone_init(void)
diff --git a/net/ipv4/proc.c b/net/ipv4/proc.c
index d63474c6b400..552169b41b16 100644
--- a/net/ipv4/proc.c
+++ b/net/ipv4/proc.c
@@ -51,24 +51,54 @@
  */
 static int sockstat_seq_show(struct seq_file *seq, void *v)
 {
+	struct net *net = seq->private;
+
 	socket_seq_show(seq);
 	seq_printf(seq, "TCP: inuse %d orphan %d tw %d alloc %d mem %d\n",
-		   sock_prot_inuse_get(&tcp_prot),
+		   sock_prot_inuse_get(net, &tcp_prot),
 		   atomic_read(&tcp_orphan_count),
 		   tcp_death_row.tw_count, atomic_read(&tcp_sockets_allocated),
 		   atomic_read(&tcp_memory_allocated));
-	seq_printf(seq, "UDP: inuse %d mem %d\n", sock_prot_inuse_get(&udp_prot),
+	seq_printf(seq, "UDP: inuse %d mem %d\n",
+		   sock_prot_inuse_get(net, &udp_prot),
 		   atomic_read(&udp_memory_allocated));
-	seq_printf(seq, "UDPLITE: inuse %d\n", sock_prot_inuse_get(&udplite_prot));
-	seq_printf(seq, "RAW: inuse %d\n", sock_prot_inuse_get(&raw_prot));
+	seq_printf(seq, "UDPLITE: inuse %d\n",
+		   sock_prot_inuse_get(net, &udplite_prot));
+	seq_printf(seq, "RAW: inuse %d\n",
+		   sock_prot_inuse_get(net, &raw_prot));
 	seq_printf(seq,  "FRAG: inuse %d memory %d\n",
-			ip_frag_nqueues(&init_net), ip_frag_mem(&init_net));
+			ip_frag_nqueues(net), ip_frag_mem(net));
 	return 0;
 }
 
 static int sockstat_seq_open(struct inode *inode, struct file *file)
 {
-	return single_open(file, sockstat_seq_show, NULL);
+	int err;
+	struct net *net;
+
+	err = -ENXIO;
+	net = get_proc_net(inode);
+	if (net == NULL)
+		goto err_net;
+
+	err = single_open(file, sockstat_seq_show, net);
+	if (err < 0)
+		goto err_open;
+
+	return 0;
+
+err_open:
+	put_net(net);
+err_net:
+	return err;
+}
+
+static int sockstat_seq_release(struct inode *inode, struct file *file)
+{
+	struct net *net = ((struct seq_file *)file->private_data)->private;
+
+	put_net(net);
+	return single_release(inode, file);
 }
 
 static const struct file_operations sockstat_seq_fops = {
@@ -76,7 +106,7 @@ static const struct file_operations sockstat_seq_fops = {
 	.open	 = sockstat_seq_open,
 	.read	 = seq_read,
 	.llseek	 = seq_lseek,
-	.release = single_release,
+	.release = sockstat_seq_release,
 };
 
 /* snmp items */
@@ -423,25 +453,42 @@ static const struct file_operations netstat_seq_fops = {
 	.release = single_release,
 };
 
+static __net_init int ip_proc_init_net(struct net *net)
+{
+	if (!proc_net_fops_create(net, "sockstat", S_IRUGO, &sockstat_seq_fops))
+		return -ENOMEM;
+	return 0;
+}
+
+static __net_exit void ip_proc_exit_net(struct net *net)
+{
+	proc_net_remove(net, "sockstat");
+}
+
+static __net_initdata struct pernet_operations ip_proc_ops = {
+	.init = ip_proc_init_net,
+	.exit = ip_proc_exit_net,
+};
+
 int __init ip_misc_proc_init(void)
 {
 	int rc = 0;
 
+	if (register_pernet_subsys(&ip_proc_ops))
+		goto out_pernet;
+
 	if (!proc_net_fops_create(&init_net, "netstat", S_IRUGO, &netstat_seq_fops))
 		goto out_netstat;
 
 	if (!proc_net_fops_create(&init_net, "snmp", S_IRUGO, &snmp_seq_fops))
 		goto out_snmp;
-
-	if (!proc_net_fops_create(&init_net, "sockstat", S_IRUGO, &sockstat_seq_fops))
-		goto out_sockstat;
 out:
 	return rc;
-out_sockstat:
-	proc_net_remove(&init_net, "snmp");
 out_snmp:
 	proc_net_remove(&init_net, "netstat");
 out_netstat:
+	unregister_pernet_subsys(&ip_proc_ops);
+out_pernet:
 	rc = -ENOMEM;
 	goto out;
 }
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index a3002fe65b7f..11d7f753a820 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -81,41 +81,34 @@
 #include <linux/netfilter_ipv4.h>
 
 static struct raw_hashinfo raw_v4_hashinfo = {
-	.lock = __RW_LOCK_UNLOCKED(),
+	.lock = __RW_LOCK_UNLOCKED(raw_v4_hashinfo.lock),
 };
 
-void raw_hash_sk(struct sock *sk, struct raw_hashinfo *h)
+void raw_hash_sk(struct sock *sk)
 {
+	struct raw_hashinfo *h = sk->sk_prot->h.raw_hash;
 	struct hlist_head *head;
 
 	head = &h->ht[inet_sk(sk)->num & (RAW_HTABLE_SIZE - 1)];
 
 	write_lock_bh(&h->lock);
 	sk_add_node(sk, head);
-	sock_prot_inuse_add(sk->sk_prot, 1);
+	sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1);
 	write_unlock_bh(&h->lock);
 }
 EXPORT_SYMBOL_GPL(raw_hash_sk);
 
-void raw_unhash_sk(struct sock *sk, struct raw_hashinfo *h)
+void raw_unhash_sk(struct sock *sk)
 {
+	struct raw_hashinfo *h = sk->sk_prot->h.raw_hash;
+
 	write_lock_bh(&h->lock);
 	if (sk_del_node_init(sk))
-		sock_prot_inuse_add(sk->sk_prot, -1);
+		sock_prot_inuse_add(sock_net(sk), sk->sk_prot, -1);
 	write_unlock_bh(&h->lock);
 }
 EXPORT_SYMBOL_GPL(raw_unhash_sk);
 
-static void raw_v4_hash(struct sock *sk)
-{
-	raw_hash_sk(sk, &raw_v4_hashinfo);
-}
-
-static void raw_v4_unhash(struct sock *sk)
-{
-	raw_unhash_sk(sk, &raw_v4_hashinfo);
-}
-
 static struct sock *__raw_v4_lookup(struct net *net, struct sock *sk,
 		unsigned short num, __be32 raddr, __be32 laddr, int dif)
 {
@@ -124,7 +117,7 @@ static struct sock *__raw_v4_lookup(struct net *net, struct sock *sk,
 	sk_for_each_from(sk, node) {
 		struct inet_sock *inet = inet_sk(sk);
 
-		if (sk->sk_net == net && inet->num == num 		&&
+		if (net_eq(sock_net(sk), net) && inet->num == num	&&
 		    !(inet->daddr && inet->daddr != raddr) 		&&
 		    !(inet->rcv_saddr && inet->rcv_saddr != laddr)	&&
 		    !(sk->sk_bound_dev_if && sk->sk_bound_dev_if != dif))
@@ -175,7 +168,7 @@ static int raw_v4_input(struct sk_buff *skb, struct iphdr *iph, int hash)
 	if (hlist_empty(head))
 		goto out;
 
-	net = skb->dev->nd_net;
+	net = dev_net(skb->dev);
 	sk = __raw_v4_lookup(net, __sk_head(head), iph->protocol,
 			     iph->saddr, iph->daddr,
 			     skb->dev->ifindex);
@@ -283,7 +276,7 @@ void raw_icmp_error(struct sk_buff *skb, int protocol, u32 info)
 	raw_sk = sk_head(&raw_v4_hashinfo.ht[hash]);
 	if (raw_sk != NULL) {
 		iph = (struct iphdr *)skb->data;
-		net = skb->dev->nd_net;
+		net = dev_net(skb->dev);
 
 		while ((raw_sk = __raw_v4_lookup(net, raw_sk, protocol,
 						iph->daddr, iph->saddr,
@@ -506,7 +499,7 @@ static int raw_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 	ipc.oif = sk->sk_bound_dev_if;
 
 	if (msg->msg_controllen) {
-		err = ip_cmsg_send(msg, &ipc);
+		err = ip_cmsg_send(sock_net(sk), msg, &ipc);
 		if (err)
 			goto out;
 		if (ipc.opt)
@@ -560,7 +553,7 @@ static int raw_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 		}
 
 		security_sk_classify_flow(sk, &fl);
-		err = ip_route_output_flow(&init_net, &rt, &fl, sk, 1);
+		err = ip_route_output_flow(sock_net(sk), &rt, &fl, sk, 1);
 	}
 	if (err)
 		goto done;
@@ -627,7 +620,7 @@ static int raw_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len)
 
 	if (sk->sk_state != TCP_CLOSE || addr_len < sizeof(struct sockaddr_in))
 		goto out;
-	chk_addr_ret = inet_addr_type(sk->sk_net, addr->sin_addr.s_addr);
+	chk_addr_ret = inet_addr_type(sock_net(sk), addr->sin_addr.s_addr);
 	ret = -EADDRNOTAVAIL;
 	if (addr->sin_addr.s_addr && chk_addr_ret != RTN_LOCAL &&
 	    chk_addr_ret != RTN_MULTICAST && chk_addr_ret != RTN_BROADCAST)
@@ -825,8 +818,6 @@ static int raw_ioctl(struct sock *sk, int cmd, unsigned long arg)
 	}
 }
 
-DEFINE_PROTO_INUSE(raw)
-
 struct proto raw_prot = {
 	.name		   = "RAW",
 	.owner		   = THIS_MODULE,
@@ -841,14 +832,14 @@ struct proto raw_prot = {
 	.recvmsg	   = raw_recvmsg,
 	.bind		   = raw_bind,
 	.backlog_rcv	   = raw_rcv_skb,
-	.hash		   = raw_v4_hash,
-	.unhash		   = raw_v4_unhash,
+	.hash		   = raw_hash_sk,
+	.unhash		   = raw_unhash_sk,
 	.obj_size	   = sizeof(struct raw_sock),
+	.h.raw_hash	   = &raw_v4_hashinfo,
 #ifdef CONFIG_COMPAT
 	.compat_setsockopt = compat_raw_setsockopt,
 	.compat_getsockopt = compat_raw_getsockopt,
 #endif
-	REF_PROTO_INUSE(raw)
 };
 
 #ifdef CONFIG_PROC_FS
@@ -862,7 +853,7 @@ static struct sock *raw_get_first(struct seq_file *seq)
 		struct hlist_node *node;
 
 		sk_for_each(sk, node, &state->h->ht[state->bucket])
-			if (sk->sk_net == state->p.net)
+			if (sock_net(sk) == seq_file_net(seq))
 				goto found;
 	}
 	sk = NULL;
@@ -878,7 +869,7 @@ static struct sock *raw_get_next(struct seq_file *seq, struct sock *sk)
 		sk = sk_next(sk);
 try_again:
 		;
-	} while (sk && sk->sk_net != state->p.net);
+	} while (sk && sock_net(sk) != seq_file_net(seq));
 
 	if (!sk && ++state->bucket < RAW_HTABLE_SIZE) {
 		sk = sk_head(&state->h->ht[state->bucket]);
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 7b5e8e1d94be..780e9484c825 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -118,21 +118,19 @@
 #define RT_GC_TIMEOUT (300*HZ)
 
 static int ip_rt_max_size;
-static int ip_rt_gc_timeout		= RT_GC_TIMEOUT;
-static int ip_rt_gc_interval		= 60 * HZ;
-static int ip_rt_gc_min_interval	= HZ / 2;
-static int ip_rt_redirect_number	= 9;
-static int ip_rt_redirect_load		= HZ / 50;
-static int ip_rt_redirect_silence	= ((HZ / 50) << (9 + 1));
-static int ip_rt_error_cost		= HZ;
-static int ip_rt_error_burst		= 5 * HZ;
-static int ip_rt_gc_elasticity		= 8;
-static int ip_rt_mtu_expires		= 10 * 60 * HZ;
-static int ip_rt_min_pmtu		= 512 + 20 + 20;
-static int ip_rt_min_advmss		= 256;
-static int ip_rt_secret_interval	= 10 * 60 * HZ;
-
-#define RTprint(a...)	printk(KERN_DEBUG a)
+static int ip_rt_gc_timeout __read_mostly	= RT_GC_TIMEOUT;
+static int ip_rt_gc_interval __read_mostly	= 60 * HZ;
+static int ip_rt_gc_min_interval __read_mostly	= HZ / 2;
+static int ip_rt_redirect_number __read_mostly	= 9;
+static int ip_rt_redirect_load __read_mostly	= HZ / 50;
+static int ip_rt_redirect_silence __read_mostly	= ((HZ / 50) << (9 + 1));
+static int ip_rt_error_cost __read_mostly	= HZ;
+static int ip_rt_error_burst __read_mostly	= 5 * HZ;
+static int ip_rt_gc_elasticity __read_mostly	= 8;
+static int ip_rt_mtu_expires __read_mostly	= 10 * 60 * HZ;
+static int ip_rt_min_pmtu __read_mostly		= 512 + 20 + 20;
+static int ip_rt_min_advmss __read_mostly	= 256;
+static int ip_rt_secret_interval __read_mostly	= 10 * 60 * HZ;
 
 static void rt_worker_func(struct work_struct *work);
 static DECLARE_DELAYED_WORK(expires_work, rt_worker_func);
@@ -252,40 +250,41 @@ static inline void rt_hash_lock_init(void)
 }
 #endif
 
-static struct rt_hash_bucket 	*rt_hash_table;
-static unsigned			rt_hash_mask;
-static unsigned int		rt_hash_log;
-static atomic_t			rt_genid;
+static struct rt_hash_bucket 	*rt_hash_table __read_mostly;
+static unsigned			rt_hash_mask __read_mostly;
+static unsigned int		rt_hash_log  __read_mostly;
+static atomic_t			rt_genid __read_mostly;
 
 static DEFINE_PER_CPU(struct rt_cache_stat, rt_cache_stat);
 #define RT_CACHE_STAT_INC(field) \
 	(__raw_get_cpu_var(rt_cache_stat).field++)
 
-static unsigned int rt_hash_code(u32 daddr, u32 saddr)
+static inline unsigned int rt_hash(__be32 daddr, __be32 saddr, int idx)
 {
-	return jhash_2words(daddr, saddr, atomic_read(&rt_genid))
+	return jhash_3words((__force u32)(__be32)(daddr),
+			    (__force u32)(__be32)(saddr),
+			    idx, atomic_read(&rt_genid))
 		& rt_hash_mask;
 }
 
-#define rt_hash(daddr, saddr, idx) \
-	rt_hash_code((__force u32)(__be32)(daddr),\
-		     (__force u32)(__be32)(saddr) ^ ((idx) << 5))
-
 #ifdef CONFIG_PROC_FS
 struct rt_cache_iter_state {
+	struct seq_net_private p;
 	int bucket;
 	int genid;
 };
 
-static struct rtable *rt_cache_get_first(struct rt_cache_iter_state *st)
+static struct rtable *rt_cache_get_first(struct seq_file *seq)
 {
+	struct rt_cache_iter_state *st = seq->private;
 	struct rtable *r = NULL;
 
 	for (st->bucket = rt_hash_mask; st->bucket >= 0; --st->bucket) {
 		rcu_read_lock_bh();
 		r = rcu_dereference(rt_hash_table[st->bucket].chain);
 		while (r) {
-			if (r->rt_genid == st->genid)
+			if (dev_net(r->u.dst.dev) == seq_file_net(seq) &&
+			    r->rt_genid == st->genid)
 				return r;
 			r = rcu_dereference(r->u.dst.rt_next);
 		}
@@ -294,8 +293,10 @@ static struct rtable *rt_cache_get_first(struct rt_cache_iter_state *st)
 	return r;
 }
 
-static struct rtable *rt_cache_get_next(struct rt_cache_iter_state *st, struct rtable *r)
+static struct rtable *__rt_cache_get_next(struct seq_file *seq,
+					  struct rtable *r)
 {
+	struct rt_cache_iter_state *st = seq->private;
 	r = r->u.dst.rt_next;
 	while (!r) {
 		rcu_read_unlock_bh();
@@ -307,25 +308,34 @@ static struct rtable *rt_cache_get_next(struct rt_cache_iter_state *st, struct r
 	return rcu_dereference(r);
 }
 
-static struct rtable *rt_cache_get_idx(struct rt_cache_iter_state *st, loff_t pos)
+static struct rtable *rt_cache_get_next(struct seq_file *seq,
+					struct rtable *r)
+{
+	struct rt_cache_iter_state *st = seq->private;
+	while ((r = __rt_cache_get_next(seq, r)) != NULL) {
+		if (dev_net(r->u.dst.dev) != seq_file_net(seq))
+			continue;
+		if (r->rt_genid == st->genid)
+			break;
+	}
+	return r;
+}
+
+static struct rtable *rt_cache_get_idx(struct seq_file *seq, loff_t pos)
 {
-	struct rtable *r = rt_cache_get_first(st);
+	struct rtable *r = rt_cache_get_first(seq);
 
 	if (r)
-		while (pos && (r = rt_cache_get_next(st, r))) {
-			if (r->rt_genid != st->genid)
-				continue;
+		while (pos && (r = rt_cache_get_next(seq, r)))
 			--pos;
-		}
 	return pos ? NULL : r;
 }
 
 static void *rt_cache_seq_start(struct seq_file *seq, loff_t *pos)
 {
 	struct rt_cache_iter_state *st = seq->private;
-
 	if (*pos)
-		return rt_cache_get_idx(st, *pos - 1);
+		return rt_cache_get_idx(seq, *pos - 1);
 	st->genid = atomic_read(&rt_genid);
 	return SEQ_START_TOKEN;
 }
@@ -333,12 +343,11 @@ static void *rt_cache_seq_start(struct seq_file *seq, loff_t *pos)
 static void *rt_cache_seq_next(struct seq_file *seq, void *v, loff_t *pos)
 {
 	struct rtable *r;
-	struct rt_cache_iter_state *st = seq->private;
 
 	if (v == SEQ_START_TOKEN)
-		r = rt_cache_get_first(st);
+		r = rt_cache_get_first(seq);
 	else
-		r = rt_cache_get_next(st, v);
+		r = rt_cache_get_next(seq, v);
 	++*pos;
 	return r;
 }
@@ -390,7 +399,7 @@ static const struct seq_operations rt_cache_seq_ops = {
 
 static int rt_cache_seq_open(struct inode *inode, struct file *file)
 {
-	return seq_open_private(file, &rt_cache_seq_ops,
+	return seq_open_net(inode, file, &rt_cache_seq_ops,
 			sizeof(struct rt_cache_iter_state));
 }
 
@@ -399,7 +408,7 @@ static const struct file_operations rt_cache_seq_fops = {
 	.open	 = rt_cache_seq_open,
 	.read	 = seq_read,
 	.llseek	 = seq_lseek,
-	.release = seq_release_private,
+	.release = seq_release_net,
 };
 
 
@@ -533,7 +542,7 @@ static int ip_rt_acct_read(char *buffer, char **start, off_t offset,
 }
 #endif
 
-static __init int ip_rt_proc_init(struct net *net)
+static int __net_init ip_rt_do_proc_init(struct net *net)
 {
 	struct proc_dir_entry *pde;
 
@@ -564,25 +573,43 @@ err2:
 err1:
 	return -ENOMEM;
 }
+
+static void __net_exit ip_rt_do_proc_exit(struct net *net)
+{
+	remove_proc_entry("rt_cache", net->proc_net_stat);
+	remove_proc_entry("rt_cache", net->proc_net);
+	remove_proc_entry("rt_acct", net->proc_net);
+}
+
+static struct pernet_operations ip_rt_proc_ops __net_initdata =  {
+	.init = ip_rt_do_proc_init,
+	.exit = ip_rt_do_proc_exit,
+};
+
+static int __init ip_rt_proc_init(void)
+{
+	return register_pernet_subsys(&ip_rt_proc_ops);
+}
+
 #else
-static inline int ip_rt_proc_init(struct net *net)
+static inline int ip_rt_proc_init(void)
 {
 	return 0;
 }
 #endif /* CONFIG_PROC_FS */
 
-static __inline__ void rt_free(struct rtable *rt)
+static inline void rt_free(struct rtable *rt)
 {
 	call_rcu_bh(&rt->u.dst.rcu_head, dst_rcu_free);
 }
 
-static __inline__ void rt_drop(struct rtable *rt)
+static inline void rt_drop(struct rtable *rt)
 {
 	ip_rt_put(rt);
 	call_rcu_bh(&rt->u.dst.rcu_head, dst_rcu_free);
 }
 
-static __inline__ int rt_fast_clean(struct rtable *rth)
+static inline int rt_fast_clean(struct rtable *rth)
 {
 	/* Kill broadcast/multicast entries very aggresively, if they
 	   collide in hash table with more useful entries */
@@ -590,7 +617,7 @@ static __inline__ int rt_fast_clean(struct rtable *rth)
 		rth->fl.iif && rth->u.dst.rt_next;
 }
 
-static __inline__ int rt_valuable(struct rtable *rth)
+static inline int rt_valuable(struct rtable *rth)
 {
 	return (rth->rt_flags & (RTCF_REDIRECTED | RTCF_NOTIFY)) ||
 		rth->u.dst.expires;
@@ -652,7 +679,7 @@ static inline int compare_keys(struct flowi *fl1, struct flowi *fl2)
 
 static inline int compare_netns(struct rtable *rt1, struct rtable *rt2)
 {
-	return rt1->u.dst.dev->nd_net == rt2->u.dst.dev->nd_net;
+	return dev_net(rt1->u.dst.dev) == dev_net(rt2->u.dst.dev);
 }
 
 /*
@@ -1032,10 +1059,10 @@ restart:
 #if RT_CACHE_DEBUG >= 2
 	if (rt->u.dst.rt_next) {
 		struct rtable *trt;
-		printk(KERN_DEBUG "rt_cache @%02x: %u.%u.%u.%u", hash,
+		printk(KERN_DEBUG "rt_cache @%02x: " NIPQUAD_FMT, hash,
 		       NIPQUAD(rt->rt_dst));
 		for (trt = rt->u.dst.rt_next; trt; trt = trt->u.dst.rt_next)
-			printk(" . %u.%u.%u.%u", NIPQUAD(trt->rt_dst));
+			printk(" . " NIPQUAD_FMT, NIPQUAD(trt->rt_dst));
 		printk("\n");
 	}
 #endif
@@ -1131,10 +1158,12 @@ void ip_rt_redirect(__be32 old_gw, __be32 daddr, __be32 new_gw,
 	__be32  skeys[2] = { saddr, 0 };
 	int  ikeys[2] = { dev->ifindex, 0 };
 	struct netevent_redirect netevent;
+	struct net *net;
 
 	if (!in_dev)
 		return;
 
+	net = dev_net(dev);
 	if (new_gw == old_gw || !IN_DEV_RX_REDIRECTS(in_dev)
 	    || ipv4_is_multicast(new_gw) || ipv4_is_lbcast(new_gw)
 	    || ipv4_is_zeronet(new_gw))
@@ -1146,7 +1175,7 @@ void ip_rt_redirect(__be32 old_gw, __be32 daddr, __be32 new_gw,
 		if (IN_DEV_SEC_REDIRECTS(in_dev) && ip_fib_check_default(new_gw, dev))
 			goto reject_redirect;
 	} else {
-		if (inet_addr_type(&init_net, new_gw) != RTN_UNICAST)
+		if (inet_addr_type(net, new_gw) != RTN_UNICAST)
 			goto reject_redirect;
 	}
 
@@ -1164,7 +1193,8 @@ void ip_rt_redirect(__be32 old_gw, __be32 daddr, __be32 new_gw,
 				    rth->fl.fl4_src != skeys[i] ||
 				    rth->fl.oif != ikeys[k] ||
 				    rth->fl.iif != 0 ||
-				    rth->rt_genid != atomic_read(&rt_genid)) {
+				    rth->rt_genid != atomic_read(&rt_genid) ||
+				    !net_eq(dev_net(rth->u.dst.dev), net)) {
 					rthp = &rth->u.dst.rt_next;
 					continue;
 				}
@@ -1245,9 +1275,9 @@ void ip_rt_redirect(__be32 old_gw, __be32 daddr, __be32 new_gw,
 reject_redirect:
 #ifdef CONFIG_IP_ROUTE_VERBOSE
 	if (IN_DEV_LOG_MARTIANS(in_dev) && net_ratelimit())
-		printk(KERN_INFO "Redirect from %u.%u.%u.%u on %s about "
-			"%u.%u.%u.%u ignored.\n"
-			"  Advised path = %u.%u.%u.%u -> %u.%u.%u.%u\n",
+		printk(KERN_INFO "Redirect from " NIPQUAD_FMT " on %s about "
+			NIPQUAD_FMT " ignored.\n"
+			"  Advised path = " NIPQUAD_FMT " -> " NIPQUAD_FMT "\n",
 		       NIPQUAD(old_gw), dev->name, NIPQUAD(new_gw),
 		       NIPQUAD(saddr), NIPQUAD(daddr));
 #endif
@@ -1256,7 +1286,7 @@ reject_redirect:
 
 static struct dst_entry *ipv4_negative_advice(struct dst_entry *dst)
 {
-	struct rtable *rt = (struct rtable*)dst;
+	struct rtable *rt = (struct rtable *)dst;
 	struct dst_entry *ret = dst;
 
 	if (rt) {
@@ -1269,7 +1299,7 @@ static struct dst_entry *ipv4_negative_advice(struct dst_entry *dst)
 						rt->fl.oif);
 #if RT_CACHE_DEBUG >= 1
 			printk(KERN_DEBUG "ipv4_negative_advice: redirect to "
-					  "%u.%u.%u.%u/%02x dropped\n",
+					  NIPQUAD_FMT "/%02x dropped\n",
 				NIPQUAD(rt->rt_dst), rt->fl.fl4_tos);
 #endif
 			rt_del(hash, rt);
@@ -1297,7 +1327,7 @@ static struct dst_entry *ipv4_negative_advice(struct dst_entry *dst)
 
 void ip_rt_send_redirect(struct sk_buff *skb)
 {
-	struct rtable *rt = (struct rtable*)skb->dst;
+	struct rtable *rt = skb->rtable;
 	struct in_device *in_dev = in_dev_get(rt->u.dst.dev);
 
 	if (!in_dev)
@@ -1334,8 +1364,8 @@ void ip_rt_send_redirect(struct sk_buff *skb)
 		if (IN_DEV_LOG_MARTIANS(in_dev) &&
 		    rt->u.dst.rate_tokens == ip_rt_redirect_number &&
 		    net_ratelimit())
-			printk(KERN_WARNING "host %u.%u.%u.%u/if%d ignores "
-				"redirects for %u.%u.%u.%u to %u.%u.%u.%u.\n",
+			printk(KERN_WARNING "host " NIPQUAD_FMT "/if%d ignores "
+				"redirects for " NIPQUAD_FMT " to " NIPQUAD_FMT ".\n",
 				NIPQUAD(rt->rt_src), rt->rt_iif,
 				NIPQUAD(rt->rt_dst), NIPQUAD(rt->rt_gateway));
 #endif
@@ -1346,7 +1376,7 @@ out:
 
 static int ip_error(struct sk_buff *skb)
 {
-	struct rtable *rt = (struct rtable*)skb->dst;
+	struct rtable *rt = skb->rtable;
 	unsigned long now;
 	int code;
 
@@ -1388,7 +1418,7 @@ out:	kfree_skb(skb);
 static const unsigned short mtu_plateau[] =
 {32000, 17914, 8166, 4352, 2002, 1492, 576, 296, 216, 128 };
 
-static __inline__ unsigned short guess_mtu(unsigned short old_mtu)
+static inline unsigned short guess_mtu(unsigned short old_mtu)
 {
 	int i;
 
@@ -1423,7 +1453,7 @@ unsigned short ip_rt_frag_needed(struct net *net, struct iphdr *iph,
 			    rth->rt_src  == iph->saddr &&
 			    rth->fl.iif == 0 &&
 			    !(dst_metric_locked(&rth->u.dst, RTAX_MTU)) &&
-			    rth->u.dst.dev->nd_net == net &&
+			    net_eq(dev_net(rth->u.dst.dev), net) &&
 			    rth->rt_genid == atomic_read(&rt_genid)) {
 				unsigned short mtu = new_mtu;
 
@@ -1499,9 +1529,9 @@ static void ipv4_dst_ifdown(struct dst_entry *dst, struct net_device *dev,
 {
 	struct rtable *rt = (struct rtable *) dst;
 	struct in_device *idev = rt->idev;
-	if (dev != dev->nd_net->loopback_dev && idev && idev->dev == dev) {
+	if (dev != dev_net(dev)->loopback_dev && idev && idev->dev == dev) {
 		struct in_device *loopback_idev =
-			in_dev_get(dev->nd_net->loopback_dev);
+			in_dev_get(dev_net(dev)->loopback_dev);
 		if (loopback_idev) {
 			rt->idev = loopback_idev;
 			in_dev_put(idev);
@@ -1515,14 +1545,14 @@ static void ipv4_link_failure(struct sk_buff *skb)
 
 	icmp_send(skb, ICMP_DEST_UNREACH, ICMP_HOST_UNREACH, 0);
 
-	rt = (struct rtable *) skb->dst;
+	rt = skb->rtable;
 	if (rt)
 		dst_set_expires(&rt->u.dst, 0);
 }
 
 static int ip_rt_bug(struct sk_buff *skb)
 {
-	printk(KERN_DEBUG "ip_rt_bug: %u.%u.%u.%u -> %u.%u.%u.%u, %s\n",
+	printk(KERN_DEBUG "ip_rt_bug: " NIPQUAD_FMT " -> " NIPQUAD_FMT ", %s\n",
 		NIPQUAD(ip_hdr(skb)->saddr), NIPQUAD(ip_hdr(skb)->daddr),
 		skb->dev ? skb->dev->name : "?");
 	kfree_skb(skb);
@@ -1545,7 +1575,7 @@ void ip_rt_get_source(u8 *addr, struct rtable *rt)
 
 	if (rt->fl.iif == 0)
 		src = rt->rt_src;
-	else if (fib_lookup(rt->u.dst.dev->nd_net, &rt->fl, &res) == 0) {
+	else if (fib_lookup(dev_net(rt->u.dst.dev), &rt->fl, &res) == 0) {
 		src = FIB_RES_PREFSRC(res);
 		fib_res_put(&res);
 	} else
@@ -1675,7 +1705,7 @@ static int ip_route_input_mc(struct sk_buff *skb, __be32 daddr, __be32 saddr,
 
 	in_dev_put(in_dev);
 	hash = rt_hash(daddr, saddr, dev->ifindex);
-	return rt_intern_hash(hash, rth, (struct rtable**) &skb->dst);
+	return rt_intern_hash(hash, rth, &skb->rtable);
 
 e_nobufs:
 	in_dev_put(in_dev);
@@ -1700,8 +1730,8 @@ static void ip_handle_martian_source(struct net_device *dev,
 		 *	RFC1812 recommendation, if source is martian,
 		 *	the only hint is MAC header.
 		 */
-		printk(KERN_WARNING "martian source %u.%u.%u.%u from "
-			"%u.%u.%u.%u, on dev %s\n",
+		printk(KERN_WARNING "martian source " NIPQUAD_FMT " from "
+			NIPQUAD_FMT", on dev %s\n",
 			NIPQUAD(daddr), NIPQUAD(saddr), dev->name);
 		if (dev->hard_header_len && skb_mac_header_was_set(skb)) {
 			int i;
@@ -1718,11 +1748,11 @@ static void ip_handle_martian_source(struct net_device *dev,
 #endif
 }
 
-static inline int __mkroute_input(struct sk_buff *skb,
-				  struct fib_result* res,
-				  struct in_device *in_dev,
-				  __be32 daddr, __be32 saddr, u32 tos,
-				  struct rtable **result)
+static int __mkroute_input(struct sk_buff *skb,
+			   struct fib_result *res,
+			   struct in_device *in_dev,
+			   __be32 daddr, __be32 saddr, u32 tos,
+			   struct rtable **result)
 {
 
 	struct rtable *rth;
@@ -1814,11 +1844,11 @@ static inline int __mkroute_input(struct sk_buff *skb,
 	return err;
 }
 
-static inline int ip_mkroute_input(struct sk_buff *skb,
-				   struct fib_result* res,
-				   const struct flowi *fl,
-				   struct in_device *in_dev,
-				   __be32 daddr, __be32 saddr, u32 tos)
+static int ip_mkroute_input(struct sk_buff *skb,
+			    struct fib_result *res,
+			    const struct flowi *fl,
+			    struct in_device *in_dev,
+			    __be32 daddr, __be32 saddr, u32 tos)
 {
 	struct rtable* rth = NULL;
 	int err;
@@ -1836,7 +1866,7 @@ static inline int ip_mkroute_input(struct sk_buff *skb,
 
 	/* put it into the cache */
 	hash = rt_hash(daddr, saddr, fl->iif);
-	return rt_intern_hash(hash, rth, (struct rtable**)&skb->dst);
+	return rt_intern_hash(hash, rth, &skb->rtable);
 }
 
 /*
@@ -1869,7 +1899,7 @@ static int ip_route_input_slow(struct sk_buff *skb, __be32 daddr, __be32 saddr,
 	__be32		spec_dst;
 	int		err = -EINVAL;
 	int		free_res = 0;
-	struct net    * net = dev->nd_net;
+	struct net    * net = dev_net(dev);
 
 	/* IP on this device is disabled. */
 
@@ -1992,7 +2022,7 @@ local_input:
 	}
 	rth->rt_type	= res.type;
 	hash = rt_hash(daddr, saddr, fl.iif);
-	err = rt_intern_hash(hash, rth, (struct rtable**)&skb->dst);
+	err = rt_intern_hash(hash, rth, &skb->rtable);
 	goto done;
 
 no_route:
@@ -2010,8 +2040,8 @@ martian_destination:
 	RT_CACHE_STAT_INC(in_martian_dst);
 #ifdef CONFIG_IP_ROUTE_VERBOSE
 	if (IN_DEV_LOG_MARTIANS(in_dev) && net_ratelimit())
-		printk(KERN_WARNING "martian destination %u.%u.%u.%u from "
-			"%u.%u.%u.%u, dev %s\n",
+		printk(KERN_WARNING "martian destination " NIPQUAD_FMT " from "
+			NIPQUAD_FMT ", dev %s\n",
 			NIPQUAD(daddr), NIPQUAD(saddr), dev->name);
 #endif
 
@@ -2040,25 +2070,25 @@ int ip_route_input(struct sk_buff *skb, __be32 daddr, __be32 saddr,
 	int iif = dev->ifindex;
 	struct net *net;
 
-	net = dev->nd_net;
+	net = dev_net(dev);
 	tos &= IPTOS_RT_MASK;
 	hash = rt_hash(daddr, saddr, iif);
 
 	rcu_read_lock();
 	for (rth = rcu_dereference(rt_hash_table[hash].chain); rth;
 	     rth = rcu_dereference(rth->u.dst.rt_next)) {
-		if (rth->fl.fl4_dst == daddr &&
-		    rth->fl.fl4_src == saddr &&
-		    rth->fl.iif == iif &&
-		    rth->fl.oif == 0 &&
+		if (((rth->fl.fl4_dst ^ daddr) |
+		     (rth->fl.fl4_src ^ saddr) |
+		     (rth->fl.iif ^ iif) |
+		     rth->fl.oif |
+		     (rth->fl.fl4_tos ^ tos)) == 0 &&
 		    rth->fl.mark == skb->mark &&
-		    rth->fl.fl4_tos == tos &&
-		    rth->u.dst.dev->nd_net == net &&
+		    net_eq(dev_net(rth->u.dst.dev), net) &&
 		    rth->rt_genid == atomic_read(&rt_genid)) {
 			dst_use(&rth->u.dst, jiffies);
 			RT_CACHE_STAT_INC(in_hit);
 			rcu_read_unlock();
-			skb->dst = (struct dst_entry*)rth;
+			skb->rtable = rth;
 			return 0;
 		}
 		RT_CACHE_STAT_INC(in_hlist_search);
@@ -2100,12 +2130,12 @@ int ip_route_input(struct sk_buff *skb, __be32 daddr, __be32 saddr,
 	return ip_route_input_slow(skb, daddr, saddr, tos, dev);
 }
 
-static inline int __mkroute_output(struct rtable **result,
-				   struct fib_result* res,
-				   const struct flowi *fl,
-				   const struct flowi *oldflp,
-				   struct net_device *dev_out,
-				   unsigned flags)
+static int __mkroute_output(struct rtable **result,
+			    struct fib_result *res,
+			    const struct flowi *fl,
+			    const struct flowi *oldflp,
+			    struct net_device *dev_out,
+			    unsigned flags)
 {
 	struct rtable *rth;
 	struct in_device *in_dev;
@@ -2220,12 +2250,12 @@ static inline int __mkroute_output(struct rtable **result,
 	return err;
 }
 
-static inline int ip_mkroute_output(struct rtable **rp,
-				    struct fib_result* res,
-				    const struct flowi *fl,
-				    const struct flowi *oldflp,
-				    struct net_device *dev_out,
-				    unsigned flags)
+static int ip_mkroute_output(struct rtable **rp,
+			     struct fib_result *res,
+			     const struct flowi *fl,
+			     const struct flowi *oldflp,
+			     struct net_device *dev_out,
+			     unsigned flags)
 {
 	struct rtable *rth = NULL;
 	int err = __mkroute_output(&rth, res, fl, oldflp, dev_out, flags);
@@ -2455,7 +2485,7 @@ int __ip_route_output_key(struct net *net, struct rtable **rp,
 		    rth->fl.mark == flp->mark &&
 		    !((rth->fl.fl4_tos ^ flp->fl4_tos) &
 			    (IPTOS_RT_MASK | RTO_ONLINK)) &&
-		    rth->u.dst.dev->nd_net == net &&
+		    net_eq(dev_net(rth->u.dst.dev), net) &&
 		    rth->rt_genid == atomic_read(&rt_genid)) {
 			dst_use(&rth->u.dst, jiffies);
 			RT_CACHE_STAT_INC(out_hit);
@@ -2487,7 +2517,7 @@ static struct dst_ops ipv4_dst_blackhole_ops = {
 };
 
 
-static int ipv4_dst_blackhole(struct rtable **rp, struct flowi *flp, struct sock *sk)
+static int ipv4_dst_blackhole(struct rtable **rp, struct flowi *flp)
 {
 	struct rtable *ort = *rp;
 	struct rtable *rt = (struct rtable *)
@@ -2547,7 +2577,7 @@ int ip_route_output_flow(struct net *net, struct rtable **rp, struct flowi *flp,
 		err = __xfrm_lookup((struct dst_entry **)rp, flp, sk,
 				    flags ? XFRM_LOOKUP_WAIT : 0);
 		if (err == -EREMOTE)
-			err = ipv4_dst_blackhole(rp, flp, sk);
+			err = ipv4_dst_blackhole(rp, flp);
 
 		return err;
 	}
@@ -2565,7 +2595,7 @@ int ip_route_output_key(struct net *net, struct rtable **rp, struct flowi *flp)
 static int rt_fill_info(struct sk_buff *skb, u32 pid, u32 seq, int event,
 			int nowait, unsigned int flags)
 {
-	struct rtable *rt = (struct rtable*)skb->dst;
+	struct rtable *rt = skb->rtable;
 	struct rtmsg *r;
 	struct nlmsghdr *nlh;
 	long expires;
@@ -2658,7 +2688,7 @@ nla_put_failure:
 
 static int inet_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr* nlh, void *arg)
 {
-	struct net *net = in_skb->sk->sk_net;
+	struct net *net = sock_net(in_skb->sk);
 	struct rtmsg *rtm;
 	struct nlattr *tb[RTA_MAX+1];
 	struct rtable *rt = NULL;
@@ -2668,9 +2698,6 @@ static int inet_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr* nlh, void
 	int err;
 	struct sk_buff *skb;
 
-	if (net != &init_net)
-		return -EINVAL;
-
 	err = nlmsg_parse(nlh, sizeof(*rtm), tb, RTA_MAX, rtm_ipv4_policy);
 	if (err < 0)
 		goto errout;
@@ -2700,7 +2727,7 @@ static int inet_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr* nlh, void
 	if (iif) {
 		struct net_device *dev;
 
-		dev = __dev_get_by_index(&init_net, iif);
+		dev = __dev_get_by_index(net, iif);
 		if (dev == NULL) {
 			err = -ENODEV;
 			goto errout_free;
@@ -2712,7 +2739,7 @@ static int inet_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr* nlh, void
 		err = ip_route_input(skb, dst, src, rtm->rtm_tos, dev);
 		local_bh_enable();
 
-		rt = (struct rtable*) skb->dst;
+		rt = skb->rtable;
 		if (err == 0 && rt->u.dst.error)
 			err = -rt->u.dst.error;
 	} else {
@@ -2726,22 +2753,22 @@ static int inet_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr* nlh, void
 			},
 			.oif = tb[RTA_OIF] ? nla_get_u32(tb[RTA_OIF]) : 0,
 		};
-		err = ip_route_output_key(&init_net, &rt, &fl);
+		err = ip_route_output_key(net, &rt, &fl);
 	}
 
 	if (err)
 		goto errout_free;
 
-	skb->dst = &rt->u.dst;
+	skb->rtable = rt;
 	if (rtm->rtm_flags & RTM_F_NOTIFY)
 		rt->rt_flags |= RTCF_NOTIFY;
 
 	err = rt_fill_info(skb, NETLINK_CB(in_skb).pid, nlh->nlmsg_seq,
-				RTM_NEWROUTE, 0, 0);
+			   RTM_NEWROUTE, 0, 0);
 	if (err <= 0)
 		goto errout_free;
 
-	err = rtnl_unicast(skb, &init_net, NETLINK_CB(in_skb).pid);
+	err = rtnl_unicast(skb, net, NETLINK_CB(in_skb).pid);
 errout:
 	return err;
 
@@ -2755,6 +2782,9 @@ int ip_rt_dump(struct sk_buff *skb,  struct netlink_callback *cb)
 	struct rtable *rt;
 	int h, s_h;
 	int idx, s_idx;
+	struct net *net;
+
+	net = sock_net(skb->sk);
 
 	s_h = cb->args[0];
 	if (s_h < 0)
@@ -2764,7 +2794,7 @@ int ip_rt_dump(struct sk_buff *skb,  struct netlink_callback *cb)
 		rcu_read_lock_bh();
 		for (rt = rcu_dereference(rt_hash_table[h].chain), idx = 0; rt;
 		     rt = rcu_dereference(rt->u.dst.rt_next), idx++) {
-			if (idx < s_idx)
+			if (!net_eq(dev_net(rt->u.dst.dev), net) || idx < s_idx)
 				continue;
 			if (rt->rt_genid != atomic_read(&rt_genid))
 				continue;
@@ -3028,7 +3058,9 @@ int __init ip_rt_init(void)
 	devinet_init();
 	ip_fib_init();
 
-	setup_timer(&rt_secret_timer, rt_secret_rebuild, 0);
+	rt_secret_timer.function = rt_secret_rebuild;
+	rt_secret_timer.data = 0;
+	init_timer_deferrable(&rt_secret_timer);
 
 	/* All the timers, started at system startup tend
 	   to synchronize. Perturb it a bit.
@@ -3040,7 +3072,7 @@ int __init ip_rt_init(void)
 		ip_rt_secret_interval;
 	add_timer(&rt_secret_timer);
 
-	if (ip_rt_proc_init(&init_net))
+	if (ip_rt_proc_init())
 		printk(KERN_ERR "Unable to create route proc files\n");
 #ifdef CONFIG_XFRM
 	xfrm_init();
diff --git a/net/ipv4/syncookies.c b/net/ipv4/syncookies.c
index f470fe4511db..73ba98921d64 100644
--- a/net/ipv4/syncookies.c
+++ b/net/ipv4/syncookies.c
@@ -10,8 +10,6 @@
  *      2 of the License, or (at your option) any later version.
  *
  *  $Id: syncookies.c,v 1.18 2002/02/01 22:01:04 davem Exp $
- *
- *  Missing: IPv6 support.
  */
 
 #include <linux/tcp.h>
@@ -21,26 +19,33 @@
 #include <linux/kernel.h>
 #include <net/tcp.h>
 
+/* Timestamps: lowest 9 bits store TCP options */
+#define TSBITS 9
+#define TSMASK (((__u32)1 << TSBITS) - 1)
+
 extern int sysctl_tcp_syncookies;
 
-static __u32 syncookie_secret[2][16-3+SHA_DIGEST_WORDS];
+__u32 syncookie_secret[2][16-4+SHA_DIGEST_WORDS];
+EXPORT_SYMBOL(syncookie_secret);
 
 static __init int init_syncookies(void)
 {
 	get_random_bytes(syncookie_secret, sizeof(syncookie_secret));
 	return 0;
 }
-module_init(init_syncookies);
+__initcall(init_syncookies);
 
 #define COOKIEBITS 24	/* Upper bits store count */
 #define COOKIEMASK (((__u32)1 << COOKIEBITS) - 1)
 
+static DEFINE_PER_CPU(__u32, cookie_scratch)[16 + 5 + SHA_WORKSPACE_WORDS];
+
 static u32 cookie_hash(__be32 saddr, __be32 daddr, __be16 sport, __be16 dport,
 		       u32 count, int c)
 {
-	__u32 tmp[16 + 5 + SHA_WORKSPACE_WORDS];
+	__u32 *tmp = __get_cpu_var(cookie_scratch);
 
-	memcpy(tmp + 3, syncookie_secret[c], sizeof(syncookie_secret[c]));
+	memcpy(tmp + 4, syncookie_secret[c], sizeof(syncookie_secret[c]));
 	tmp[0] = (__force u32)saddr;
 	tmp[1] = (__force u32)daddr;
 	tmp[2] = ((__force u32)sport << 16) + (__force u32)dport;
@@ -50,6 +55,39 @@ static u32 cookie_hash(__be32 saddr, __be32 daddr, __be16 sport, __be16 dport,
 	return tmp[17];
 }
 
+
+/*
+ * when syncookies are in effect and tcp timestamps are enabled we encode
+ * tcp options in the lowest 9 bits of the timestamp value that will be
+ * sent in the syn-ack.
+ * Since subsequent timestamps use the normal tcp_time_stamp value, we
+ * must make sure that the resulting initial timestamp is <= tcp_time_stamp.
+ */
+__u32 cookie_init_timestamp(struct request_sock *req)
+{
+	struct inet_request_sock *ireq;
+	u32 ts, ts_now = tcp_time_stamp;
+	u32 options = 0;
+
+	ireq = inet_rsk(req);
+	if (ireq->wscale_ok) {
+		options = ireq->snd_wscale;
+		options |= ireq->rcv_wscale << 4;
+	}
+	options |= ireq->sack_ok << 8;
+
+	ts = ts_now & ~TSMASK;
+	ts |= options;
+	if (ts > ts_now) {
+		ts >>= TSBITS;
+		ts--;
+		ts <<= TSBITS;
+		ts |= options;
+	}
+	return ts;
+}
+
+
 static __u32 secure_tcp_syn_cookie(__be32 saddr, __be32 daddr, __be16 sport,
 				   __be16 dport, __u32 sseq, __u32 count,
 				   __u32 data)
@@ -184,6 +222,35 @@ static inline struct sock *get_cookie_sock(struct sock *sk, struct sk_buff *skb,
 	return child;
 }
 
+
+/*
+ * when syncookies are in effect and tcp timestamps are enabled we stored
+ * additional tcp options in the timestamp.
+ * This extracts these options from the timestamp echo.
+ *
+ * The lowest 4 bits are for snd_wscale
+ * The next 4 lsb are for rcv_wscale
+ * The next lsb is for sack_ok
+ */
+void cookie_check_timestamp(struct tcp_options_received *tcp_opt)
+{
+	/* echoed timestamp, 9 lowest bits contain options */
+	u32 options = tcp_opt->rcv_tsecr & TSMASK;
+
+	tcp_opt->snd_wscale = options & 0xf;
+	options >>= 4;
+	tcp_opt->rcv_wscale = options & 0xf;
+
+	tcp_opt->sack_ok = (options >> 4) & 0x1;
+
+	if (tcp_opt->sack_ok)
+		tcp_sack_reset(tcp_opt);
+
+	if (tcp_opt->snd_wscale || tcp_opt->rcv_wscale)
+		tcp_opt->wscale_ok = 1;
+}
+EXPORT_SYMBOL(cookie_check_timestamp);
+
 struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb,
 			     struct ip_options *opt)
 {
@@ -197,6 +264,7 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb,
 	int mss;
 	struct rtable *rt;
 	__u8 rcv_wscale;
+	struct tcp_options_received tcp_opt;
 
 	if (!sysctl_tcp_syncookies || !th->ack)
 		goto out;
@@ -209,6 +277,13 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb,
 
 	NET_INC_STATS_BH(LINUX_MIB_SYNCOOKIESRECV);
 
+	/* check for timestamp cookie support */
+	memset(&tcp_opt, 0, sizeof(tcp_opt));
+	tcp_parse_options(skb, &tcp_opt, 0);
+
+	if (tcp_opt.saw_tstamp)
+		cookie_check_timestamp(&tcp_opt);
+
 	ret = NULL;
 	req = reqsk_alloc(&tcp_request_sock_ops); /* for safety */
 	if (!req)
@@ -227,6 +302,12 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb,
 	ireq->loc_addr		= ip_hdr(skb)->daddr;
 	ireq->rmt_addr		= ip_hdr(skb)->saddr;
 	ireq->opt		= NULL;
+	ireq->snd_wscale	= tcp_opt.snd_wscale;
+	ireq->rcv_wscale	= tcp_opt.rcv_wscale;
+	ireq->sack_ok		= tcp_opt.sack_ok;
+	ireq->wscale_ok		= tcp_opt.wscale_ok;
+	ireq->tstamp_ok		= tcp_opt.saw_tstamp;
+	req->ts_recent		= tcp_opt.saw_tstamp ? tcp_opt.rcv_tsval : 0;
 
 	/* We throwed the options of the initial SYN away, so we hope
 	 * the ACK carries the same options again (see RFC1122 4.2.3.8)
@@ -241,8 +322,6 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb,
 		}
 	}
 
-	ireq->snd_wscale = ireq->rcv_wscale = ireq->tstamp_ok = 0;
-	ireq->wscale_ok	 = ireq->sack_ok = 0;
 	req->expires	= 0UL;
 	req->retrans	= 0;
 
@@ -271,11 +350,12 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb,
 	}
 
 	/* Try to redo what tcp_v4_send_synack did. */
-	req->window_clamp = dst_metric(&rt->u.dst, RTAX_WINDOW);
+	req->window_clamp = tp->window_clamp ? :dst_metric(&rt->u.dst, RTAX_WINDOW);
+
 	tcp_select_initial_window(tcp_full_space(sk), req->mss,
 				  &req->rcv_wnd, &req->window_clamp,
-				  0, &rcv_wscale);
-	/* BTW win scale with syncookies is 0 by definition */
+				  ireq->wscale_ok, &rcv_wscale);
+
 	ireq->rcv_wscale  = rcv_wscale;
 
 	ret = get_cookie_sock(sk, skb, req, &rt->u.dst);
diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
index 88286f35d1e2..c437f804ee38 100644
--- a/net/ipv4/sysctl_net_ipv4.c
+++ b/net/ipv4/sysctl_net_ipv4.c
@@ -404,38 +404,6 @@ static struct ctl_table ipv4_table[] = {
 		.strategy	= &ipv4_sysctl_local_port_range,
 	},
 	{
-		.ctl_name	= NET_IPV4_ICMP_ECHO_IGNORE_ALL,
-		.procname	= "icmp_echo_ignore_all",
-		.data		= &sysctl_icmp_echo_ignore_all,
-		.maxlen		= sizeof(int),
-		.mode		= 0644,
-		.proc_handler	= &proc_dointvec
-	},
-	{
-		.ctl_name	= NET_IPV4_ICMP_ECHO_IGNORE_BROADCASTS,
-		.procname	= "icmp_echo_ignore_broadcasts",
-		.data		= &sysctl_icmp_echo_ignore_broadcasts,
-		.maxlen		= sizeof(int),
-		.mode		= 0644,
-		.proc_handler	= &proc_dointvec
-	},
-	{
-		.ctl_name	= NET_IPV4_ICMP_IGNORE_BOGUS_ERROR_RESPONSES,
-		.procname	= "icmp_ignore_bogus_error_responses",
-		.data		= &sysctl_icmp_ignore_bogus_error_responses,
-		.maxlen		= sizeof(int),
-		.mode		= 0644,
-		.proc_handler	= &proc_dointvec
-	},
-	{
-		.ctl_name	= NET_IPV4_ICMP_ERRORS_USE_INBOUND_IFADDR,
-		.procname	= "icmp_errors_use_inbound_ifaddr",
-		.data		= &sysctl_icmp_errors_use_inbound_ifaddr,
-		.maxlen		= sizeof(int),
-		.mode		= 0644,
-		.proc_handler	= &proc_dointvec
-	},
-	{
 		.ctl_name	= NET_IPV4_ROUTE,
 		.procname	= "route",
 		.maxlen		= 0,
@@ -586,22 +554,6 @@ static struct ctl_table ipv4_table[] = {
 		.proc_handler	= &proc_dointvec
 	},
 	{
-		.ctl_name	= NET_IPV4_ICMP_RATELIMIT,
-		.procname	= "icmp_ratelimit",
-		.data		= &sysctl_icmp_ratelimit,
-		.maxlen		= sizeof(int),
-		.mode		= 0644,
-		.proc_handler	= &proc_dointvec
-	},
-	{
-		.ctl_name	= NET_IPV4_ICMP_RATEMASK,
-		.procname	= "icmp_ratemask",
-		.data		= &sysctl_icmp_ratemask,
-		.maxlen		= sizeof(int),
-		.mode		= 0644,
-		.proc_handler	= &proc_dointvec
-	},
-	{
 		.ctl_name	= NET_TCP_TW_REUSE,
 		.procname	= "tcp_tw_reuse",
 		.data		= &sysctl_tcp_tw_reuse,
@@ -804,6 +756,58 @@ static struct ctl_table ipv4_table[] = {
 	{ .ctl_name = 0 }
 };
 
+static struct ctl_table ipv4_net_table[] = {
+	{
+		.ctl_name	= NET_IPV4_ICMP_ECHO_IGNORE_ALL,
+		.procname	= "icmp_echo_ignore_all",
+		.data		= &init_net.ipv4.sysctl_icmp_echo_ignore_all,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec
+	},
+	{
+		.ctl_name	= NET_IPV4_ICMP_ECHO_IGNORE_BROADCASTS,
+		.procname	= "icmp_echo_ignore_broadcasts",
+		.data		= &init_net.ipv4.sysctl_icmp_echo_ignore_broadcasts,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec
+	},
+	{
+		.ctl_name	= NET_IPV4_ICMP_IGNORE_BOGUS_ERROR_RESPONSES,
+		.procname	= "icmp_ignore_bogus_error_responses",
+		.data		= &init_net.ipv4.sysctl_icmp_ignore_bogus_error_responses,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec
+	},
+	{
+		.ctl_name	= NET_IPV4_ICMP_ERRORS_USE_INBOUND_IFADDR,
+		.procname	= "icmp_errors_use_inbound_ifaddr",
+		.data		= &init_net.ipv4.sysctl_icmp_errors_use_inbound_ifaddr,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec
+	},
+	{
+		.ctl_name	= NET_IPV4_ICMP_RATELIMIT,
+		.procname	= "icmp_ratelimit",
+		.data		= &init_net.ipv4.sysctl_icmp_ratelimit,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec
+	},
+	{
+		.ctl_name	= NET_IPV4_ICMP_RATEMASK,
+		.procname	= "icmp_ratemask",
+		.data		= &init_net.ipv4.sysctl_icmp_ratemask,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec
+	},
+	{ }
+};
+
 struct ctl_path net_ipv4_ctl_path[] = {
 	{ .procname = "net", .ctl_name = CTL_NET, },
 	{ .procname = "ipv4", .ctl_name = NET_IPV4, },
@@ -811,12 +815,72 @@ struct ctl_path net_ipv4_ctl_path[] = {
 };
 EXPORT_SYMBOL_GPL(net_ipv4_ctl_path);
 
+static __net_init int ipv4_sysctl_init_net(struct net *net)
+{
+	struct ctl_table *table;
+
+	table = ipv4_net_table;
+	if (net != &init_net) {
+		table = kmemdup(table, sizeof(ipv4_net_table), GFP_KERNEL);
+		if (table == NULL)
+			goto err_alloc;
+
+		table[0].data =
+			&net->ipv4.sysctl_icmp_echo_ignore_all;
+		table[1].data =
+			&net->ipv4.sysctl_icmp_echo_ignore_broadcasts;
+		table[2].data =
+			&net->ipv4.sysctl_icmp_ignore_bogus_error_responses;
+		table[3].data =
+			&net->ipv4.sysctl_icmp_errors_use_inbound_ifaddr;
+		table[4].data =
+			&net->ipv4.sysctl_icmp_ratelimit;
+		table[5].data =
+			&net->ipv4.sysctl_icmp_ratemask;
+	}
+
+	net->ipv4.ipv4_hdr = register_net_sysctl_table(net,
+			net_ipv4_ctl_path, table);
+	if (net->ipv4.ipv4_hdr == NULL)
+		goto err_reg;
+
+	return 0;
+
+err_reg:
+	if (net != &init_net)
+		kfree(table);
+err_alloc:
+	return -ENOMEM;
+}
+
+static __net_exit void ipv4_sysctl_exit_net(struct net *net)
+{
+	struct ctl_table *table;
+
+	table = net->ipv4.ipv4_hdr->ctl_table_arg;
+	unregister_net_sysctl_table(net->ipv4.ipv4_hdr);
+	kfree(table);
+}
+
+static __net_initdata struct pernet_operations ipv4_sysctl_ops = {
+	.init = ipv4_sysctl_init_net,
+	.exit = ipv4_sysctl_exit_net,
+};
+
 static __init int sysctl_ipv4_init(void)
 {
 	struct ctl_table_header *hdr;
 
 	hdr = register_sysctl_paths(net_ipv4_ctl_path, ipv4_table);
-	return hdr == NULL ? -ENOMEM : 0;
+	if (hdr == NULL)
+		return -ENOMEM;
+
+	if (register_pernet_subsys(&ipv4_sysctl_ops)) {
+		unregister_sysctl_table(hdr);
+		return -ENOMEM;
+	}
+
+	return 0;
 }
 
 __initcall(sysctl_ipv4_init);
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 39b629ac2404..58ac838bf460 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -2105,15 +2105,12 @@ static int do_tcp_setsockopt(struct sock *sk, int level,
 		break;
 
 	case TCP_DEFER_ACCEPT:
-		icsk->icsk_accept_queue.rskq_defer_accept = 0;
-		if (val > 0) {
-			/* Translate value in seconds to number of
-			 * retransmits */
-			while (icsk->icsk_accept_queue.rskq_defer_accept < 32 &&
-			       val > ((TCP_TIMEOUT_INIT / HZ) <<
-				       icsk->icsk_accept_queue.rskq_defer_accept))
-				icsk->icsk_accept_queue.rskq_defer_accept++;
-			icsk->icsk_accept_queue.rskq_defer_accept++;
+		if (val < 0) {
+			err = -EINVAL;
+		} else {
+			if (val > MAX_TCP_ACCEPT_DEFERRED)
+				val = MAX_TCP_ACCEPT_DEFERRED;
+			icsk->icsk_accept_queue.rskq_defer_accept = val;
 		}
 		break;
 
@@ -2295,8 +2292,7 @@ static int do_tcp_getsockopt(struct sock *sk, int level,
 			val = (val ? : sysctl_tcp_fin_timeout) / HZ;
 		break;
 	case TCP_DEFER_ACCEPT:
-		val = !icsk->icsk_accept_queue.rskq_defer_accept ? 0 :
-			((TCP_TIMEOUT_INIT / HZ) << (icsk->icsk_accept_queue.rskq_defer_accept - 1));
+		val = icsk->icsk_accept_queue.rskq_defer_accept;
 		break;
 	case TCP_WINDOW_CLAMP:
 		val = tp->window_clamp;
diff --git a/net/ipv4/tcp_cubic.c b/net/ipv4/tcp_cubic.c
index 3aa0b23c1ea0..eb5b9854c8c7 100644
--- a/net/ipv4/tcp_cubic.c
+++ b/net/ipv4/tcp_cubic.c
@@ -1,12 +1,13 @@
 /*
- * TCP CUBIC: Binary Increase Congestion control for TCP v2.1
- *
+ * TCP CUBIC: Binary Increase Congestion control for TCP v2.2
+ * Home page:
+ *      http://netsrv.csc.ncsu.edu/twiki/bin/view/Main/BIC
  * This is from the implementation of CUBIC TCP in
  * Injong Rhee, Lisong Xu.
  *  "CUBIC: A New TCP-Friendly High-Speed TCP Variant
  *  in PFLDnet 2005
  * Available from:
- *  http://www.csc.ncsu.edu/faculty/rhee/export/bitcp/cubic-paper.pdf
+ *  http://netsrv.csc.ncsu.edu/export/cubic-paper.pdf
  *
  * Unless CUBIC is enabled and congestion window is large
  * this behaves the same as the original Reno.
@@ -20,15 +21,10 @@
 #define BICTCP_BETA_SCALE    1024	/* Scale factor beta calculation
 					 * max_cwnd = snd_cwnd * beta
 					 */
-#define BICTCP_B		4	 /*
-					  * In binary search,
-					  * go to point (max+min)/N
-					  */
 #define	BICTCP_HZ		10	/* BIC HZ 2^10 = 1024 */
 
 static int fast_convergence __read_mostly = 1;
-static int max_increment __read_mostly = 16;
-static int beta __read_mostly = 819;	/* = 819/1024 (BICTCP_BETA_SCALE) */
+static int beta __read_mostly = 717;	/* = 717/1024 (BICTCP_BETA_SCALE) */
 static int initial_ssthresh __read_mostly;
 static int bic_scale __read_mostly = 41;
 static int tcp_friendliness __read_mostly = 1;
@@ -40,9 +36,7 @@ static u64 cube_factor __read_mostly;
 /* Note parameters that are used for precomputing scale factors are read-only */
 module_param(fast_convergence, int, 0644);
 MODULE_PARM_DESC(fast_convergence, "turn on/off fast convergence");
-module_param(max_increment, int, 0644);
-MODULE_PARM_DESC(max_increment, "Limit on increment allowed during binary search");
-module_param(beta, int, 0444);
+module_param(beta, int, 0644);
 MODULE_PARM_DESC(beta, "beta for multiplicative increase");
 module_param(initial_ssthresh, int, 0644);
 MODULE_PARM_DESC(initial_ssthresh, "initial value of slow start threshold");
@@ -145,7 +139,7 @@ static u32 cubic_root(u64 a)
 static inline void bictcp_update(struct bictcp *ca, u32 cwnd)
 {
 	u64 offs;
-	u32 delta, t, bic_target, min_cnt, max_cnt;
+	u32 delta, t, bic_target, max_cnt;
 
 	ca->ack_cnt++;	/* count the number of ACKs */
 
@@ -211,19 +205,6 @@ static inline void bictcp_update(struct bictcp *ca, u32 cwnd)
 		ca->cnt = 100 * cwnd;              /* very small increment*/
 	}
 
-	if (ca->delay_min > 0) {
-		/* max increment = Smax * rtt / 0.1  */
-		min_cnt = (cwnd * HZ * 8)/(10 * max_increment * ca->delay_min);
-
-		/* use concave growth when the target is above the origin */
-		if (ca->cnt < min_cnt && t >= ca->bic_K)
-			ca->cnt = min_cnt;
-	}
-
-	/* slow start and low utilization  */
-	if (ca->loss_cwnd == 0)		/* could be aggressive in slow start */
-		ca->cnt = 50;
-
 	/* TCP Friendly */
 	if (tcp_friendliness) {
 		u32 scale = beta_scale;
@@ -391,4 +372,4 @@ module_exit(cubictcp_unregister);
 MODULE_AUTHOR("Sangtae Ha, Stephen Hemminger");
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("CUBIC TCP");
-MODULE_VERSION("2.1");
+MODULE_VERSION("2.2");
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index bbb7d88a16b4..cdc051bfdb4d 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -2309,12 +2309,25 @@ static void DBGUNDO(struct sock *sk, const char *msg)
 	struct tcp_sock *tp = tcp_sk(sk);
 	struct inet_sock *inet = inet_sk(sk);
 
-	printk(KERN_DEBUG "Undo %s %u.%u.%u.%u/%u c%u l%u ss%u/%u p%u\n",
-	       msg,
-	       NIPQUAD(inet->daddr), ntohs(inet->dport),
-	       tp->snd_cwnd, tcp_left_out(tp),
-	       tp->snd_ssthresh, tp->prior_ssthresh,
-	       tp->packets_out);
+	if (sk->sk_family == AF_INET) {
+		printk(KERN_DEBUG "Undo %s " NIPQUAD_FMT "/%u c%u l%u ss%u/%u p%u\n",
+		       msg,
+		       NIPQUAD(inet->daddr), ntohs(inet->dport),
+		       tp->snd_cwnd, tcp_left_out(tp),
+		       tp->snd_ssthresh, tp->prior_ssthresh,
+		       tp->packets_out);
+	}
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+	else if (sk->sk_family == AF_INET6) {
+		struct ipv6_pinfo *np = inet6_sk(sk);
+		printk(KERN_DEBUG "Undo %s " NIP6_FMT "/%u c%u l%u ss%u/%u p%u\n",
+		       msg,
+		       NIP6(np->daddr), ntohs(inet->dport),
+		       tp->snd_cwnd, tcp_left_out(tp),
+		       tp->snd_ssthresh, tp->prior_ssthresh,
+		       tp->packets_out);
+	}
+#endif
 }
 #else
 #define DBGUNDO(x...) do { } while (0)
@@ -3592,7 +3605,7 @@ static void tcp_fin(struct sk_buff *skb, struct sock *sk, struct tcphdr *th)
 		 * cases we should never reach this piece of code.
 		 */
 		printk(KERN_ERR "%s: Impossible, sk->sk_state=%d\n",
-		       __FUNCTION__, sk->sk_state);
+		       __func__, sk->sk_state);
 		break;
 	}
 
@@ -4012,7 +4025,7 @@ drop:
 		u32 end_seq = TCP_SKB_CB(skb)->end_seq;
 
 		if (seq == TCP_SKB_CB(skb1)->end_seq) {
-			__skb_append(skb1, skb, &tp->out_of_order_queue);
+			__skb_queue_after(&tp->out_of_order_queue, skb1, skb);
 
 			if (!tp->rx_opt.num_sacks ||
 			    tp->selective_acks[0].end_seq != seq)
@@ -4508,6 +4521,49 @@ static void tcp_urg(struct sock *sk, struct sk_buff *skb, struct tcphdr *th)
 	}
 }
 
+static int tcp_defer_accept_check(struct sock *sk)
+{
+	struct tcp_sock *tp = tcp_sk(sk);
+
+	if (tp->defer_tcp_accept.request) {
+		int queued_data =  tp->rcv_nxt - tp->copied_seq;
+		int hasfin =  !skb_queue_empty(&sk->sk_receive_queue) ?
+			tcp_hdr((struct sk_buff *)
+				sk->sk_receive_queue.prev)->fin : 0;
+
+		if (queued_data && hasfin)
+			queued_data--;
+
+		if (queued_data &&
+		    tp->defer_tcp_accept.listen_sk->sk_state == TCP_LISTEN) {
+			if (sock_flag(sk, SOCK_KEEPOPEN)) {
+				inet_csk_reset_keepalive_timer(sk,
+							       keepalive_time_when(tp));
+			} else {
+				inet_csk_delete_keepalive_timer(sk);
+			}
+
+			inet_csk_reqsk_queue_add(
+				tp->defer_tcp_accept.listen_sk,
+				tp->defer_tcp_accept.request,
+				sk);
+
+			tp->defer_tcp_accept.listen_sk->sk_data_ready(
+				tp->defer_tcp_accept.listen_sk, 0);
+
+			sock_put(tp->defer_tcp_accept.listen_sk);
+			sock_put(sk);
+			tp->defer_tcp_accept.listen_sk = NULL;
+			tp->defer_tcp_accept.request = NULL;
+		} else if (hasfin ||
+			   tp->defer_tcp_accept.listen_sk->sk_state != TCP_LISTEN) {
+			tcp_reset(sk);
+			return -1;
+		}
+	}
+	return 0;
+}
+
 static int tcp_copy_to_iovec(struct sock *sk, struct sk_buff *skb, int hlen)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
@@ -4868,6 +4924,9 @@ step5:
 
 	tcp_data_snd_check(sk);
 	tcp_ack_snd_check(sk);
+
+	if (tcp_defer_accept_check(sk))
+		return -1;
 	return 0;
 
 csum_error:
@@ -5387,6 +5446,7 @@ discard:
 
 EXPORT_SYMBOL(sysctl_tcp_ecn);
 EXPORT_SYMBOL(sysctl_tcp_reordering);
+EXPORT_SYMBOL(sysctl_tcp_adv_win_scale);
 EXPORT_SYMBOL(tcp_parse_options);
 EXPORT_SYMBOL(tcp_rcv_established);
 EXPORT_SYMBOL(tcp_rcv_state_process);
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 00156bf421ca..776615180b93 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -88,9 +88,6 @@ int sysctl_tcp_low_latency __read_mostly;
 /* Check TCP sequence numbers in ICMP packets. */
 #define ICMP_MIN_LENGTH 8
 
-/* Socket used for sending RSTs */
-static struct socket *tcp_socket __read_mostly;
-
 void tcp_v4_send_check(struct sock *sk, int len, struct sk_buff *skb);
 
 #ifdef CONFIG_TCP_MD5SIG
@@ -353,7 +350,7 @@ void tcp_v4_err(struct sk_buff *skb, u32 info)
 		return;
 	}
 
-	sk = inet_lookup(skb->dev->nd_net, &tcp_hashinfo, iph->daddr, th->dest,
+	sk = inet_lookup(dev_net(skb->dev), &tcp_hashinfo, iph->daddr, th->dest,
 			iph->saddr, th->source, inet_iif(skb));
 	if (!sk) {
 		ICMP_INC_STATS_BH(ICMP_MIB_INERRORS);
@@ -552,7 +549,7 @@ static void tcp_v4_send_reset(struct sock *sk, struct sk_buff *skb)
 	if (th->rst)
 		return;
 
-	if (((struct rtable *)skb->dst)->rt_type != RTN_LOCAL)
+	if (skb->rtable->rt_type != RTN_LOCAL)
 		return;
 
 	/* Swap the send and the receive. */
@@ -598,7 +595,8 @@ static void tcp_v4_send_reset(struct sock *sk, struct sk_buff *skb)
 				      sizeof(struct tcphdr), IPPROTO_TCP, 0);
 	arg.csumoffset = offsetof(struct tcphdr, check) / 2;
 
-	ip_send_reply(tcp_socket->sk, skb, &arg, arg.iov[0].iov_len);
+	ip_send_reply(dev_net(skb->dst->dev)->ipv4.tcp_sock, skb,
+		      &arg, arg.iov[0].iov_len);
 
 	TCP_INC_STATS_BH(TCP_MIB_OUTSEGS);
 	TCP_INC_STATS_BH(TCP_MIB_OUTRSTS);
@@ -693,7 +691,8 @@ static void tcp_v4_send_ack(struct tcp_timewait_sock *twsk,
 	if (twsk)
 		arg.bound_dev_if = twsk->tw_sk.tw_bound_dev_if;
 
-	ip_send_reply(tcp_socket->sk, skb, &arg, arg.iov[0].iov_len);
+	ip_send_reply(dev_net(skb->dev)->ipv4.tcp_sock, skb,
+		      &arg, arg.iov[0].iov_len);
 
 	TCP_INC_STATS_BH(TCP_MIB_OUTSEGS);
 }
@@ -723,8 +722,8 @@ static void tcp_v4_reqsk_send_ack(struct sk_buff *skb,
  *	This still operates on a request_sock only, not on a big
  *	socket.
  */
-static int tcp_v4_send_synack(struct sock *sk, struct request_sock *req,
-			      struct dst_entry *dst)
+static int __tcp_v4_send_synack(struct sock *sk, struct request_sock *req,
+				struct dst_entry *dst)
 {
 	const struct inet_request_sock *ireq = inet_rsk(req);
 	int err = -1;
@@ -732,7 +731,7 @@ static int tcp_v4_send_synack(struct sock *sk, struct request_sock *req,
 
 	/* First, grab a route. */
 	if (!dst && (dst = inet_csk_route_req(sk, req)) == NULL)
-		goto out;
+		return -1;
 
 	skb = tcp_make_synack(sk, dst, req);
 
@@ -751,11 +750,15 @@ static int tcp_v4_send_synack(struct sock *sk, struct request_sock *req,
 		err = net_xmit_eval(err);
 	}
 
-out:
 	dst_release(dst);
 	return err;
 }
 
+static int tcp_v4_send_synack(struct sock *sk, struct request_sock *req)
+{
+	return __tcp_v4_send_synack(sk, req, NULL);
+}
+
 /*
  *	IPv4 request_sock destructor.
  */
@@ -1258,8 +1261,7 @@ int tcp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
 #endif
 
 	/* Never answer to SYNs send to broadcast or multicast */
-	if (((struct rtable *)skb->dst)->rt_flags &
-	    (RTCF_BROADCAST | RTCF_MULTICAST))
+	if (skb->rtable->rt_flags & (RTCF_BROADCAST | RTCF_MULTICAST))
 		goto drop;
 
 	/* TW buckets are converted to open requests without
@@ -1297,10 +1299,8 @@ int tcp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
 
 	tcp_parse_options(skb, &tmp_opt, 0);
 
-	if (want_cookie) {
+	if (want_cookie && !tmp_opt.saw_tstamp)
 		tcp_clear_options(&tmp_opt);
-		tmp_opt.saw_tstamp = 0;
-	}
 
 	if (tmp_opt.saw_tstamp && !tmp_opt.rcv_tsval) {
 		/* Some OSes (unknown ones, but I see them on web server, which
@@ -1328,6 +1328,7 @@ int tcp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
 	if (want_cookie) {
 #ifdef CONFIG_SYN_COOKIES
 		syn_flood_warning(skb);
+		req->cookie_ts = tmp_opt.tstamp_ok;
 #endif
 		isn = cookie_v4_init_sequence(sk, skb, &req->mss);
 	} else if (!isn) {
@@ -1351,8 +1352,7 @@ int tcp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
 			    (s32)(peer->tcp_ts - req->ts_recent) >
 							TCP_PAWS_WINDOW) {
 				NET_INC_STATS_BH(LINUX_MIB_PAWSPASSIVEREJECTED);
-				dst_release(dst);
-				goto drop_and_free;
+				goto drop_and_release;
 			}
 		}
 		/* Kill the following clause, if you dislike this way. */
@@ -1369,27 +1369,24 @@ int tcp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
 			 * to the moment of synflood.
 			 */
 			LIMIT_NETDEBUG(KERN_DEBUG "TCP: drop open "
-				       "request from %u.%u.%u.%u/%u\n",
+				       "request from " NIPQUAD_FMT "/%u\n",
 				       NIPQUAD(saddr),
 				       ntohs(tcp_hdr(skb)->source));
-			dst_release(dst);
-			goto drop_and_free;
+			goto drop_and_release;
 		}
 
 		isn = tcp_v4_init_sequence(skb);
 	}
 	tcp_rsk(req)->snt_isn = isn;
 
-	if (tcp_v4_send_synack(sk, req, dst))
+	if (__tcp_v4_send_synack(sk, req, dst) || want_cookie)
 		goto drop_and_free;
 
-	if (want_cookie) {
-		reqsk_free(req);
-	} else {
-		inet_csk_reqsk_queue_hash_add(sk, req, TCP_TIMEOUT_INIT);
-	}
+	inet_csk_reqsk_queue_hash_add(sk, req, TCP_TIMEOUT_INIT);
 	return 0;
 
+drop_and_release:
+	dst_release(dst);
 drop_and_free:
 	reqsk_free(req);
 drop:
@@ -1487,7 +1484,7 @@ static struct sock *tcp_v4_hnd_req(struct sock *sk, struct sk_buff *skb)
 	if (req)
 		return tcp_check_req(sk, skb, req, prev);
 
-	nsk = inet_lookup_established(sk->sk_net, &tcp_hashinfo, iph->saddr,
+	nsk = inet_lookup_established(sock_net(sk), &tcp_hashinfo, iph->saddr,
 			th->source, iph->daddr, th->dest, inet_iif(skb));
 
 	if (nsk) {
@@ -1645,7 +1642,7 @@ int tcp_v4_rcv(struct sk_buff *skb)
 	TCP_SKB_CB(skb)->flags	 = iph->tos;
 	TCP_SKB_CB(skb)->sacked	 = 0;
 
-	sk = __inet_lookup(skb->dev->nd_net, &tcp_hashinfo, iph->saddr,
+	sk = __inet_lookup(dev_net(skb->dev), &tcp_hashinfo, iph->saddr,
 			th->source, iph->daddr, th->dest, inet_iif(skb));
 	if (!sk)
 		goto no_tcp_socket;
@@ -1719,7 +1716,7 @@ do_time_wait:
 	}
 	switch (tcp_timewait_state_process(inet_twsk(sk), skb, th)) {
 	case TCP_TW_SYN: {
-		struct sock *sk2 = inet_lookup_listener(skb->dev->nd_net,
+		struct sock *sk2 = inet_lookup_listener(dev_net(skb->dev),
 							&tcp_hashinfo,
 							iph->daddr, th->dest,
 							inet_iif(skb));
@@ -1921,6 +1918,14 @@ int tcp_v4_destroy_sock(struct sock *sk)
 		sk->sk_sndmsg_page = NULL;
 	}
 
+	if (tp->defer_tcp_accept.request) {
+		reqsk_free(tp->defer_tcp_accept.request);
+		sock_put(tp->defer_tcp_accept.listen_sk);
+		sock_put(sk);
+		tp->defer_tcp_accept.listen_sk = NULL;
+		tp->defer_tcp_accept.request = NULL;
+	}
+
 	atomic_dec(&tcp_sockets_allocated);
 
 	return 0;
@@ -1949,6 +1954,7 @@ static void *listening_get_next(struct seq_file *seq, void *cur)
 	struct hlist_node *node;
 	struct sock *sk = cur;
 	struct tcp_iter_state* st = seq->private;
+	struct net *net = seq_file_net(seq);
 
 	if (!sk) {
 		st->bucket = 0;
@@ -1965,7 +1971,8 @@ static void *listening_get_next(struct seq_file *seq, void *cur)
 		req = req->dl_next;
 		while (1) {
 			while (req) {
-				if (req->rsk_ops->family == st->family) {
+				if (req->rsk_ops->family == st->family &&
+				    net_eq(sock_net(req->sk), net)) {
 					cur = req;
 					goto out;
 				}
@@ -1989,7 +1996,7 @@ get_req:
 	}
 get_sk:
 	sk_for_each_from(sk, node) {
-		if (sk->sk_family == st->family) {
+		if (sk->sk_family == st->family && net_eq(sock_net(sk), net)) {
 			cur = sk;
 			goto out;
 		}
@@ -2028,6 +2035,7 @@ static void *listening_get_idx(struct seq_file *seq, loff_t *pos)
 static void *established_get_first(struct seq_file *seq)
 {
 	struct tcp_iter_state* st = seq->private;
+	struct net *net = seq_file_net(seq);
 	void *rc = NULL;
 
 	for (st->bucket = 0; st->bucket < tcp_hashinfo.ehash_size; ++st->bucket) {
@@ -2038,7 +2046,8 @@ static void *established_get_first(struct seq_file *seq)
 
 		read_lock_bh(lock);
 		sk_for_each(sk, node, &tcp_hashinfo.ehash[st->bucket].chain) {
-			if (sk->sk_family != st->family) {
+			if (sk->sk_family != st->family ||
+			    !net_eq(sock_net(sk), net)) {
 				continue;
 			}
 			rc = sk;
@@ -2047,7 +2056,8 @@ static void *established_get_first(struct seq_file *seq)
 		st->state = TCP_SEQ_STATE_TIME_WAIT;
 		inet_twsk_for_each(tw, node,
 				   &tcp_hashinfo.ehash[st->bucket].twchain) {
-			if (tw->tw_family != st->family) {
+			if (tw->tw_family != st->family ||
+			    !net_eq(twsk_net(tw), net)) {
 				continue;
 			}
 			rc = tw;
@@ -2066,6 +2076,7 @@ static void *established_get_next(struct seq_file *seq, void *cur)
 	struct inet_timewait_sock *tw;
 	struct hlist_node *node;
 	struct tcp_iter_state* st = seq->private;
+	struct net *net = seq_file_net(seq);
 
 	++st->num;
 
@@ -2073,7 +2084,7 @@ static void *established_get_next(struct seq_file *seq, void *cur)
 		tw = cur;
 		tw = tw_next(tw);
 get_tw:
-		while (tw && tw->tw_family != st->family) {
+		while (tw && (tw->tw_family != st->family || !net_eq(twsk_net(tw), net))) {
 			tw = tw_next(tw);
 		}
 		if (tw) {
@@ -2094,7 +2105,7 @@ get_tw:
 		sk = sk_next(sk);
 
 	sk_for_each_from(sk, node) {
-		if (sk->sk_family == st->family)
+		if (sk->sk_family == st->family && net_eq(sock_net(sk), net))
 			goto found;
 	}
 
@@ -2200,48 +2211,37 @@ static void tcp_seq_stop(struct seq_file *seq, void *v)
 static int tcp_seq_open(struct inode *inode, struct file *file)
 {
 	struct tcp_seq_afinfo *afinfo = PDE(inode)->data;
-	struct seq_file *seq;
 	struct tcp_iter_state *s;
-	int rc;
+	int err;
 
 	if (unlikely(afinfo == NULL))
 		return -EINVAL;
 
-	s = kzalloc(sizeof(*s), GFP_KERNEL);
-	if (!s)
-		return -ENOMEM;
+	err = seq_open_net(inode, file, &afinfo->seq_ops,
+			  sizeof(struct tcp_iter_state));
+	if (err < 0)
+		return err;
+
+	s = ((struct seq_file *)file->private_data)->private;
 	s->family		= afinfo->family;
-	s->seq_ops.start	= tcp_seq_start;
-	s->seq_ops.next		= tcp_seq_next;
-	s->seq_ops.show		= afinfo->seq_show;
-	s->seq_ops.stop		= tcp_seq_stop;
-
-	rc = seq_open(file, &s->seq_ops);
-	if (rc)
-		goto out_kfree;
-	seq	     = file->private_data;
-	seq->private = s;
-out:
-	return rc;
-out_kfree:
-	kfree(s);
-	goto out;
+	return 0;
 }
 
-int tcp_proc_register(struct tcp_seq_afinfo *afinfo)
+int tcp_proc_register(struct net *net, struct tcp_seq_afinfo *afinfo)
 {
 	int rc = 0;
 	struct proc_dir_entry *p;
 
-	if (!afinfo)
-		return -EINVAL;
-	afinfo->seq_fops->owner		= afinfo->owner;
-	afinfo->seq_fops->open		= tcp_seq_open;
-	afinfo->seq_fops->read		= seq_read;
-	afinfo->seq_fops->llseek	= seq_lseek;
-	afinfo->seq_fops->release	= seq_release_private;
+	afinfo->seq_fops.open		= tcp_seq_open;
+	afinfo->seq_fops.read		= seq_read;
+	afinfo->seq_fops.llseek		= seq_lseek;
+	afinfo->seq_fops.release	= seq_release_net;
+
+	afinfo->seq_ops.start		= tcp_seq_start;
+	afinfo->seq_ops.next		= tcp_seq_next;
+	afinfo->seq_ops.stop		= tcp_seq_stop;
 
-	p = proc_net_fops_create(&init_net, afinfo->name, S_IRUGO, afinfo->seq_fops);
+	p = proc_net_fops_create(net, afinfo->name, S_IRUGO, &afinfo->seq_fops);
 	if (p)
 		p->data = afinfo;
 	else
@@ -2249,12 +2249,9 @@ int tcp_proc_register(struct tcp_seq_afinfo *afinfo)
 	return rc;
 }
 
-void tcp_proc_unregister(struct tcp_seq_afinfo *afinfo)
+void tcp_proc_unregister(struct net *net, struct tcp_seq_afinfo *afinfo)
 {
-	if (!afinfo)
-		return;
-	proc_net_remove(&init_net, afinfo->name);
-	memset(afinfo->seq_fops, 0, sizeof(*afinfo->seq_fops));
+	proc_net_remove(net, afinfo->name);
 }
 
 static void get_openreq4(struct sock *sk, struct request_sock *req,
@@ -2383,28 +2380,43 @@ out:
 	return 0;
 }
 
-static struct file_operations tcp4_seq_fops;
 static struct tcp_seq_afinfo tcp4_seq_afinfo = {
-	.owner		= THIS_MODULE,
 	.name		= "tcp",
 	.family		= AF_INET,
-	.seq_show	= tcp4_seq_show,
-	.seq_fops	= &tcp4_seq_fops,
+	.seq_fops	= {
+		.owner		= THIS_MODULE,
+	},
+	.seq_ops	= {
+		.show		= tcp4_seq_show,
+	},
+};
+
+static int tcp4_proc_init_net(struct net *net)
+{
+	return tcp_proc_register(net, &tcp4_seq_afinfo);
+}
+
+static void tcp4_proc_exit_net(struct net *net)
+{
+	tcp_proc_unregister(net, &tcp4_seq_afinfo);
+}
+
+static struct pernet_operations tcp4_net_ops = {
+	.init = tcp4_proc_init_net,
+	.exit = tcp4_proc_exit_net,
 };
 
 int __init tcp4_proc_init(void)
 {
-	return tcp_proc_register(&tcp4_seq_afinfo);
+	return register_pernet_subsys(&tcp4_net_ops);
 }
 
 void tcp4_proc_exit(void)
 {
-	tcp_proc_unregister(&tcp4_seq_afinfo);
+	unregister_pernet_subsys(&tcp4_net_ops);
 }
 #endif /* CONFIG_PROC_FS */
 
-DEFINE_PROTO_INUSE(tcp)
-
 struct proto tcp_prot = {
 	.name			= "TCP",
 	.owner			= THIS_MODULE,
@@ -2435,18 +2447,33 @@ struct proto tcp_prot = {
 	.obj_size		= sizeof(struct tcp_sock),
 	.twsk_prot		= &tcp_timewait_sock_ops,
 	.rsk_prot		= &tcp_request_sock_ops,
-	.hashinfo		= &tcp_hashinfo,
+	.h.hashinfo		= &tcp_hashinfo,
 #ifdef CONFIG_COMPAT
 	.compat_setsockopt	= compat_tcp_setsockopt,
 	.compat_getsockopt	= compat_tcp_getsockopt,
 #endif
-	REF_PROTO_INUSE(tcp)
 };
 
-void __init tcp_v4_init(struct net_proto_family *ops)
+
+static int __net_init tcp_sk_init(struct net *net)
+{
+	return inet_ctl_sock_create(&net->ipv4.tcp_sock,
+				    PF_INET, SOCK_RAW, IPPROTO_TCP, net);
+}
+
+static void __net_exit tcp_sk_exit(struct net *net)
+{
+	inet_ctl_sock_destroy(net->ipv4.tcp_sock);
+}
+
+static struct pernet_operations __net_initdata tcp_sk_ops = {
+       .init = tcp_sk_init,
+       .exit = tcp_sk_exit,
+};
+
+void __init tcp_v4_init(void)
 {
-	if (inet_csk_ctl_sock_create(&tcp_socket, PF_INET, SOCK_RAW,
-				     IPPROTO_TCP) < 0)
+	if (register_pernet_device(&tcp_sk_ops))
 		panic("Failed to create the TCP control socket.\n");
 }
 
diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
index b61b76847ad9..019c8c16e5cc 100644
--- a/net/ipv4/tcp_minisocks.c
+++ b/net/ipv4/tcp_minisocks.c
@@ -35,6 +35,8 @@
 #endif
 
 int sysctl_tcp_syncookies __read_mostly = SYNC_INIT;
+EXPORT_SYMBOL(sysctl_tcp_syncookies);
+
 int sysctl_tcp_abort_on_overflow __read_mostly;
 
 struct inet_timewait_death_row tcp_death_row = {
@@ -536,7 +538,7 @@ struct sock *tcp_check_req(struct sock *sk,struct sk_buff *skb,
 		 * Enforce "SYN-ACK" according to figure 8, figure 6
 		 * of RFC793, fixed by RFC1122.
 		 */
-		req->rsk_ops->rtx_syn_ack(sk, req, NULL);
+		req->rsk_ops->rtx_syn_ack(sk, req);
 		return NULL;
 	}
 
@@ -569,10 +571,8 @@ struct sock *tcp_check_req(struct sock *sk,struct sk_buff *skb,
 	   does sequence test, SYN is truncated, and thus we consider
 	   it a bare ACK.
 
-	   If icsk->icsk_accept_queue.rskq_defer_accept, we silently drop this
-	   bare ACK.  Otherwise, we create an established connection.  Both
-	   ends (listening sockets) accept the new incoming connection and try
-	   to talk to each other. 8-)
+	   Both ends (listening sockets) accept the new incoming
+	   connection and try to talk to each other. 8-)
 
 	   Note: This case is both harmless, and rare.  Possibility is about the
 	   same as us discovering intelligent life on another plant tomorrow.
@@ -640,13 +640,6 @@ struct sock *tcp_check_req(struct sock *sk,struct sk_buff *skb,
 		if (!(flg & TCP_FLAG_ACK))
 			return NULL;
 
-		/* If TCP_DEFER_ACCEPT is set, drop bare ACK. */
-		if (inet_csk(sk)->icsk_accept_queue.rskq_defer_accept &&
-		    TCP_SKB_CB(skb)->end_seq == tcp_rsk(req)->rcv_isn + 1) {
-			inet_rsk(req)->acked = 1;
-			return NULL;
-		}
-
 		/* OK, ACK is valid, create big socket and
 		 * feed this segment to it. It will repeat all
 		 * the tests. THIS SEGMENT MUST MOVE SOCKET TO
@@ -685,7 +678,24 @@ struct sock *tcp_check_req(struct sock *sk,struct sk_buff *skb,
 		inet_csk_reqsk_queue_unlink(sk, req, prev);
 		inet_csk_reqsk_queue_removed(sk, req);
 
-		inet_csk_reqsk_queue_add(sk, req, child);
+		if (inet_csk(sk)->icsk_accept_queue.rskq_defer_accept &&
+		    TCP_SKB_CB(skb)->end_seq == tcp_rsk(req)->rcv_isn + 1) {
+
+			/* the accept queue handling is done is est recv slow
+			 * path so lets make sure to start there
+			 */
+			tcp_sk(child)->pred_flags = 0;
+			sock_hold(sk);
+			sock_hold(child);
+			tcp_sk(child)->defer_tcp_accept.listen_sk = sk;
+			tcp_sk(child)->defer_tcp_accept.request = req;
+
+			inet_csk_reset_keepalive_timer(child,
+						       inet_csk(sk)->icsk_accept_queue.rskq_defer_accept * HZ);
+		} else {
+			inet_csk_reqsk_queue_add(sk, req, child);
+		}
+
 		return child;
 
 	listen_overflow:
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index d29ef79c00ca..debf23581606 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -998,7 +998,7 @@ unsigned int tcp_current_mss(struct sock *sk, int large_allowed)
 	xmit_size_goal = mss_now;
 
 	if (doing_tso) {
-		xmit_size_goal = (65535 -
+		xmit_size_goal = ((sk->sk_gso_max_size - 1) -
 				  inet_csk(sk)->icsk_af_ops->net_header_len -
 				  inet_csk(sk)->icsk_ext_hdr_len -
 				  tp->tcp_header_len);
@@ -1057,7 +1057,7 @@ static unsigned int tcp_mss_split_point(struct sock *sk, struct sk_buff *skb,
 
 	needed = min(skb->len, window);
 
-	if (skb == tcp_write_queue_tail(sk) && cwnd_len <= needed)
+	if (cwnd_len <= needed)
 		return cwnd_len;
 
 	return needed - needed % mss_now;
@@ -1282,7 +1282,7 @@ static int tcp_tso_should_defer(struct sock *sk, struct sk_buff *skb)
 	limit = min(send_win, cong_win);
 
 	/* If a full-sized TSO skb can be sent, do it. */
-	if (limit >= 65536)
+	if (limit >= sk->sk_gso_max_size)
 		goto send_now;
 
 	if (sysctl_tcp_tso_win_divisor) {
@@ -2236,7 +2236,11 @@ struct sk_buff *tcp_make_synack(struct sock *sk, struct dst_entry *dst,
 
 	/* RFC1323: The window in SYN & SYN/ACK segments is never scaled. */
 	th->window = htons(min(req->rcv_wnd, 65535U));
-
+#ifdef CONFIG_SYN_COOKIES
+	if (unlikely(req->cookie_ts))
+		TCP_SKB_CB(skb)->when = cookie_init_timestamp(req);
+	else
+#endif
 	TCP_SKB_CB(skb)->when = tcp_time_stamp;
 	tcp_syn_build_options((__be32 *)(th + 1), dst_metric(dst, RTAX_ADVMSS), ireq->tstamp_ok,
 			      ireq->sack_ok, ireq->wscale_ok, ireq->rcv_wscale,
@@ -2571,6 +2575,7 @@ void tcp_send_probe0(struct sock *sk)
 	}
 }
 
+EXPORT_SYMBOL(tcp_select_initial_window);
 EXPORT_SYMBOL(tcp_connect);
 EXPORT_SYMBOL(tcp_make_synack);
 EXPORT_SYMBOL(tcp_simple_retransmit);
diff --git a/net/ipv4/tcp_probe.c b/net/ipv4/tcp_probe.c
index 87dd5bff315f..1c509592574a 100644
--- a/net/ipv4/tcp_probe.c
+++ b/net/ipv4/tcp_probe.c
@@ -153,7 +153,7 @@ static int tcpprobe_sprint(char *tbuf, int n)
 		= ktime_to_timespec(ktime_sub(p->tstamp, tcp_probe.start));
 
 	return snprintf(tbuf, n,
-			"%lu.%09lu %d.%d.%d.%d:%u %d.%d.%d.%d:%u"
+			"%lu.%09lu " NIPQUAD_FMT ":%u " NIPQUAD_FMT ":%u"
 			" %d %#x %#x %u %u %u %u\n",
 			(unsigned long) tv.tv_sec,
 			(unsigned long) tv.tv_nsec,
diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
index 803d758a2b12..4de68cf5f2aa 100644
--- a/net/ipv4/tcp_timer.c
+++ b/net/ipv4/tcp_timer.c
@@ -299,12 +299,20 @@ static void tcp_retransmit_timer(struct sock *sk)
 		 * we cannot allow such beasts to hang infinitely.
 		 */
 #ifdef TCP_DEBUG
-		if (1) {
-			struct inet_sock *inet = inet_sk(sk);
-			LIMIT_NETDEBUG(KERN_DEBUG "TCP: Treason uncloaked! Peer %u.%u.%u.%u:%u/%u shrinks window %u:%u. Repaired.\n",
+		struct inet_sock *inet = inet_sk(sk);
+		if (sk->sk_family == AF_INET) {
+			LIMIT_NETDEBUG(KERN_DEBUG "TCP: Treason uncloaked! Peer " NIPQUAD_FMT ":%u/%u shrinks window %u:%u. Repaired.\n",
 			       NIPQUAD(inet->daddr), ntohs(inet->dport),
 			       inet->num, tp->snd_una, tp->snd_nxt);
 		}
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+		else if (sk->sk_family == AF_INET6) {
+			struct ipv6_pinfo *np = inet6_sk(sk);
+			LIMIT_NETDEBUG(KERN_DEBUG "TCP: Treason uncloaked! Peer " NIP6_FMT ":%u/%u shrinks window %u:%u. Repaired.\n",
+			       NIP6(np->daddr), ntohs(inet->dport),
+			       inet->num, tp->snd_una, tp->snd_nxt);
+		}
+#endif
 #endif
 		if (tcp_time_stamp - tp->rcv_tstamp > TCP_RTO_MAX) {
 			tcp_write_err(sk);
@@ -481,6 +489,11 @@ static void tcp_keepalive_timer (unsigned long data)
 		goto death;
 	}
 
+	if (tp->defer_tcp_accept.request && sk->sk_state == TCP_ESTABLISHED) {
+		tcp_send_active_reset(sk, GFP_ATOMIC);
+		goto death;
+	}
+
 	if (!sock_flag(sk, SOCK_KEEPOPEN) || sk->sk_state == TCP_CLOSE)
 		goto out;
 
diff --git a/net/ipv4/tunnel4.c b/net/ipv4/tunnel4.c
index 978b3fd61e65..d3b709a6f264 100644
--- a/net/ipv4/tunnel4.c
+++ b/net/ipv4/tunnel4.c
@@ -136,6 +136,7 @@ static struct net_protocol tunnel4_protocol = {
 	.handler	=	tunnel4_rcv,
 	.err_handler	=	tunnel4_err,
 	.no_policy	=	1,
+	.netns_ok	=	1,
 };
 
 #if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
@@ -143,6 +144,7 @@ static struct net_protocol tunnel64_protocol = {
 	.handler	=	tunnel64_rcv,
 	.err_handler	=	tunnel64_err,
 	.no_policy	=	1,
+	.netns_ok	=	1,
 };
 #endif
 
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 1704c1474ea1..b053ac795275 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -137,29 +137,28 @@ static inline int __udp_lib_lport_inuse(struct net *net, __u16 num,
 	struct hlist_node *node;
 
 	sk_for_each(sk, node, &udptable[num & (UDP_HTABLE_SIZE - 1)])
-		if (sk->sk_net == net && sk->sk_hash == num)
+		if (net_eq(sock_net(sk), net) && sk->sk_hash == num)
 			return 1;
 	return 0;
 }
 
 /**
- *  __udp_lib_get_port  -  UDP/-Lite port lookup for IPv4 and IPv6
+ *  udp_lib_get_port  -  UDP/-Lite port lookup for IPv4 and IPv6
  *
  *  @sk:          socket struct in question
  *  @snum:        port number to look up
- *  @udptable:    hash list table, must be of UDP_HTABLE_SIZE
  *  @saddr_comp:  AF-dependent comparison of bound local IP addresses
  */
-int __udp_lib_get_port(struct sock *sk, unsigned short snum,
-		       struct hlist_head udptable[],
+int udp_lib_get_port(struct sock *sk, unsigned short snum,
 		       int (*saddr_comp)(const struct sock *sk1,
 					 const struct sock *sk2 )    )
 {
+	struct hlist_head *udptable = sk->sk_prot->h.udp_hash;
 	struct hlist_node *node;
 	struct hlist_head *head;
 	struct sock *sk2;
 	int    error = 1;
-	struct net *net = sk->sk_net;
+	struct net *net = sock_net(sk);
 
 	write_lock_bh(&udp_hash_lock);
 
@@ -219,7 +218,7 @@ gotit:
 		sk_for_each(sk2, node, head)
 			if (sk2->sk_hash == snum                             &&
 			    sk2 != sk                                        &&
-			    sk2->sk_net == net				     &&
+			    net_eq(sock_net(sk2), net)			     &&
 			    (!sk2->sk_reuse        || !sk->sk_reuse)         &&
 			    (!sk2->sk_bound_dev_if || !sk->sk_bound_dev_if
 			     || sk2->sk_bound_dev_if == sk->sk_bound_dev_if) &&
@@ -232,7 +231,7 @@ gotit:
 	if (sk_unhashed(sk)) {
 		head = &udptable[snum & (UDP_HTABLE_SIZE - 1)];
 		sk_add_node(sk, head);
-		sock_prot_inuse_add(sk->sk_prot, 1);
+		sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1);
 	}
 	error = 0;
 fail:
@@ -240,13 +239,7 @@ fail:
 	return error;
 }
 
-int udp_get_port(struct sock *sk, unsigned short snum,
-			int (*scmp)(const struct sock *, const struct sock *))
-{
-	return  __udp_lib_get_port(sk, snum, udp_hash, scmp);
-}
-
-int ipv4_rcv_saddr_equal(const struct sock *sk1, const struct sock *sk2)
+static int ipv4_rcv_saddr_equal(const struct sock *sk1, const struct sock *sk2)
 {
 	struct inet_sock *inet1 = inet_sk(sk1), *inet2 = inet_sk(sk2);
 
@@ -255,9 +248,9 @@ int ipv4_rcv_saddr_equal(const struct sock *sk1, const struct sock *sk2)
 		   inet1->rcv_saddr == inet2->rcv_saddr      ));
 }
 
-static inline int udp_v4_get_port(struct sock *sk, unsigned short snum)
+int udp_v4_get_port(struct sock *sk, unsigned short snum)
 {
-	return udp_get_port(sk, snum, ipv4_rcv_saddr_equal);
+	return udp_lib_get_port(sk, snum, ipv4_rcv_saddr_equal);
 }
 
 /* UDP is nearly always wildcards out the wazoo, it makes no sense to try
@@ -276,7 +269,7 @@ static struct sock *__udp4_lib_lookup(struct net *net, __be32 saddr,
 	sk_for_each(sk, node, &udptable[hnum & (UDP_HTABLE_SIZE - 1)]) {
 		struct inet_sock *inet = inet_sk(sk);
 
-		if (sk->sk_net == net && sk->sk_hash == hnum &&
+		if (net_eq(sock_net(sk), net) && sk->sk_hash == hnum &&
 				!ipv6_only_sock(sk)) {
 			int score = (sk->sk_family == PF_INET ? 1 : 0);
 			if (inet->rcv_saddr) {
@@ -364,7 +357,7 @@ void __udp4_lib_err(struct sk_buff *skb, u32 info, struct hlist_head udptable[])
 	int harderr;
 	int err;
 
-	sk = __udp4_lib_lookup(skb->dev->nd_net, iph->daddr, uh->dest,
+	sk = __udp4_lib_lookup(dev_net(skb->dev), iph->daddr, uh->dest,
 			iph->saddr, uh->source, skb->dev->ifindex, udptable);
 	if (sk == NULL) {
 		ICMP_INC_STATS_BH(ICMP_MIB_INERRORS);
@@ -614,7 +607,7 @@ int udp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 
 	ipc.oif = sk->sk_bound_dev_if;
 	if (msg->msg_controllen) {
-		err = ip_cmsg_send(msg, &ipc);
+		err = ip_cmsg_send(sock_net(sk), msg, &ipc);
 		if (err)
 			return err;
 		if (ipc.opt)
@@ -663,7 +656,7 @@ int udp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 					       { .sport = inet->sport,
 						 .dport = dport } } };
 		security_sk_classify_flow(sk, &fl);
-		err = ip_route_output_flow(&init_net, &rt, &fl, sk, 1);
+		err = ip_route_output_flow(sock_net(sk), &rt, &fl, sk, 1);
 		if (err) {
 			if (err == -ENETUNREACH)
 				IP_INC_STATS_BH(IPSTATS_MIB_OUTNOROUTES);
@@ -1188,7 +1181,7 @@ int __udp4_lib_rcv(struct sk_buff *skb, struct hlist_head udptable[],
 	if (rt->rt_flags & (RTCF_BROADCAST|RTCF_MULTICAST))
 		return __udp4_lib_mcast_deliver(skb, uh, saddr, daddr, udptable);
 
-	sk = __udp4_lib_lookup(skb->dev->nd_net, saddr, uh->source, daddr,
+	sk = __udp4_lib_lookup(dev_net(skb->dev), saddr, uh->source, daddr,
 			uh->dest, inet_iif(skb), udptable);
 
 	if (sk != NULL) {
@@ -1228,7 +1221,7 @@ int __udp4_lib_rcv(struct sk_buff *skb, struct hlist_head udptable[],
 	return 0;
 
 short_packet:
-	LIMIT_NETDEBUG(KERN_DEBUG "UDP%s: short packet: From %u.%u.%u.%u:%u %d/%d to %u.%u.%u.%u:%u\n",
+	LIMIT_NETDEBUG(KERN_DEBUG "UDP%s: short packet: From " NIPQUAD_FMT ":%u %d/%d to " NIPQUAD_FMT ":%u\n",
 		       proto == IPPROTO_UDPLITE ? "-Lite" : "",
 		       NIPQUAD(saddr),
 		       ntohs(uh->source),
@@ -1243,7 +1236,7 @@ csum_error:
 	 * RFC1122: OK.  Discards the bad packet silently (as far as
 	 * the network is concerned, anyway) as per 4.1.3.4 (MUST).
 	 */
-	LIMIT_NETDEBUG(KERN_DEBUG "UDP%s: bad checksum. From %d.%d.%d.%d:%d to %d.%d.%d.%d:%d ulen %d\n",
+	LIMIT_NETDEBUG(KERN_DEBUG "UDP%s: bad checksum. From " NIPQUAD_FMT ":%u to " NIPQUAD_FMT ":%u ulen %d\n",
 		       proto == IPPROTO_UDPLITE ? "-Lite" : "",
 		       NIPQUAD(saddr),
 		       ntohs(uh->source),
@@ -1474,8 +1467,6 @@ unsigned int udp_poll(struct file *file, struct socket *sock, poll_table *wait)
 
 }
 
-DEFINE_PROTO_INUSE(udp)
-
 struct proto udp_prot = {
 	.name		   = "UDP",
 	.owner		   = THIS_MODULE,
@@ -1498,11 +1489,11 @@ struct proto udp_prot = {
 	.sysctl_wmem	   = &sysctl_udp_wmem_min,
 	.sysctl_rmem	   = &sysctl_udp_rmem_min,
 	.obj_size	   = sizeof(struct udp_sock),
+	.h.udp_hash	   = udp_hash,
 #ifdef CONFIG_COMPAT
 	.compat_setsockopt = compat_udp_setsockopt,
 	.compat_getsockopt = compat_udp_getsockopt,
 #endif
-	REF_PROTO_INUSE(udp)
 };
 
 /* ------------------------------------------------------------------------ */
@@ -1512,10 +1503,13 @@ static struct sock *udp_get_first(struct seq_file *seq)
 {
 	struct sock *sk;
 	struct udp_iter_state *state = seq->private;
+	struct net *net = seq_file_net(seq);
 
 	for (state->bucket = 0; state->bucket < UDP_HTABLE_SIZE; ++state->bucket) {
 		struct hlist_node *node;
 		sk_for_each(sk, node, state->hashtable + state->bucket) {
+			if (!net_eq(sock_net(sk), net))
+				continue;
 			if (sk->sk_family == state->family)
 				goto found;
 		}
@@ -1528,12 +1522,13 @@ found:
 static struct sock *udp_get_next(struct seq_file *seq, struct sock *sk)
 {
 	struct udp_iter_state *state = seq->private;
+	struct net *net = seq_file_net(seq);
 
 	do {
 		sk = sk_next(sk);
 try_again:
 		;
-	} while (sk && sk->sk_family != state->family);
+	} while (sk && (!net_eq(sock_net(sk), net) || sk->sk_family != state->family));
 
 	if (!sk && ++state->bucket < UDP_HTABLE_SIZE) {
 		sk = sk_head(state->hashtable + state->bucket);
@@ -1581,47 +1576,36 @@ static void udp_seq_stop(struct seq_file *seq, void *v)
 static int udp_seq_open(struct inode *inode, struct file *file)
 {
 	struct udp_seq_afinfo *afinfo = PDE(inode)->data;
-	struct seq_file *seq;
-	int rc = -ENOMEM;
-	struct udp_iter_state *s = kzalloc(sizeof(*s), GFP_KERNEL);
+	struct udp_iter_state *s;
+	int err;
 
-	if (!s)
-		goto out;
+	err = seq_open_net(inode, file, &afinfo->seq_ops,
+			   sizeof(struct udp_iter_state));
+	if (err < 0)
+		return err;
+
+	s = ((struct seq_file *)file->private_data)->private;
 	s->family		= afinfo->family;
 	s->hashtable		= afinfo->hashtable;
-	s->seq_ops.start	= udp_seq_start;
-	s->seq_ops.next		= udp_seq_next;
-	s->seq_ops.show		= afinfo->seq_show;
-	s->seq_ops.stop		= udp_seq_stop;
-
-	rc = seq_open(file, &s->seq_ops);
-	if (rc)
-		goto out_kfree;
-
-	seq	     = file->private_data;
-	seq->private = s;
-out:
-	return rc;
-out_kfree:
-	kfree(s);
-	goto out;
+	return err;
 }
 
 /* ------------------------------------------------------------------------ */
-int udp_proc_register(struct udp_seq_afinfo *afinfo)
+int udp_proc_register(struct net *net, struct udp_seq_afinfo *afinfo)
 {
 	struct proc_dir_entry *p;
 	int rc = 0;
 
-	if (!afinfo)
-		return -EINVAL;
-	afinfo->seq_fops->owner		= afinfo->owner;
-	afinfo->seq_fops->open		= udp_seq_open;
-	afinfo->seq_fops->read		= seq_read;
-	afinfo->seq_fops->llseek	= seq_lseek;
-	afinfo->seq_fops->release	= seq_release_private;
+	afinfo->seq_fops.open		= udp_seq_open;
+	afinfo->seq_fops.read		= seq_read;
+	afinfo->seq_fops.llseek		= seq_lseek;
+	afinfo->seq_fops.release	= seq_release_net;
+
+	afinfo->seq_ops.start		= udp_seq_start;
+	afinfo->seq_ops.next		= udp_seq_next;
+	afinfo->seq_ops.stop		= udp_seq_stop;
 
-	p = proc_net_fops_create(&init_net, afinfo->name, S_IRUGO, afinfo->seq_fops);
+	p = proc_net_fops_create(net, afinfo->name, S_IRUGO, &afinfo->seq_fops);
 	if (p)
 		p->data = afinfo;
 	else
@@ -1629,12 +1613,9 @@ int udp_proc_register(struct udp_seq_afinfo *afinfo)
 	return rc;
 }
 
-void udp_proc_unregister(struct udp_seq_afinfo *afinfo)
+void udp_proc_unregister(struct net *net, struct udp_seq_afinfo *afinfo)
 {
-	if (!afinfo)
-		return;
-	proc_net_remove(&init_net, afinfo->name);
-	memset(afinfo->seq_fops, 0, sizeof(*afinfo->seq_fops));
+	proc_net_remove(net, afinfo->name);
 }
 
 /* ------------------------------------------------------------------------ */
@@ -1673,24 +1654,41 @@ int udp4_seq_show(struct seq_file *seq, void *v)
 }
 
 /* ------------------------------------------------------------------------ */
-static struct file_operations udp4_seq_fops;
 static struct udp_seq_afinfo udp4_seq_afinfo = {
-	.owner		= THIS_MODULE,
 	.name		= "udp",
 	.family		= AF_INET,
 	.hashtable	= udp_hash,
-	.seq_show	= udp4_seq_show,
-	.seq_fops	= &udp4_seq_fops,
+	.seq_fops	= {
+		.owner	=	THIS_MODULE,
+	},
+	.seq_ops	= {
+		.show		= udp4_seq_show,
+	},
+};
+
+static int udp4_proc_init_net(struct net *net)
+{
+	return udp_proc_register(net, &udp4_seq_afinfo);
+}
+
+static void udp4_proc_exit_net(struct net *net)
+{
+	udp_proc_unregister(net, &udp4_seq_afinfo);
+}
+
+static struct pernet_operations udp4_net_ops = {
+	.init = udp4_proc_init_net,
+	.exit = udp4_proc_exit_net,
 };
 
 int __init udp4_proc_init(void)
 {
-	return udp_proc_register(&udp4_seq_afinfo);
+	return register_pernet_subsys(&udp4_net_ops);
 }
 
 void udp4_proc_exit(void)
 {
-	udp_proc_unregister(&udp4_seq_afinfo);
+	unregister_pernet_subsys(&udp4_net_ops);
 }
 #endif /* CONFIG_PROC_FS */
 
@@ -1717,12 +1715,12 @@ EXPORT_SYMBOL(udp_disconnect);
 EXPORT_SYMBOL(udp_hash);
 EXPORT_SYMBOL(udp_hash_lock);
 EXPORT_SYMBOL(udp_ioctl);
-EXPORT_SYMBOL(udp_get_port);
 EXPORT_SYMBOL(udp_prot);
 EXPORT_SYMBOL(udp_sendmsg);
 EXPORT_SYMBOL(udp_lib_getsockopt);
 EXPORT_SYMBOL(udp_lib_setsockopt);
 EXPORT_SYMBOL(udp_poll);
+EXPORT_SYMBOL(udp_lib_get_port);
 
 #ifdef CONFIG_PROC_FS
 EXPORT_SYMBOL(udp_proc_register);
diff --git a/net/ipv4/udp_impl.h b/net/ipv4/udp_impl.h
index 6c55828e41ba..7288bf7977fb 100644
--- a/net/ipv4/udp_impl.h
+++ b/net/ipv4/udp_impl.h
@@ -8,11 +8,7 @@
 extern int  	__udp4_lib_rcv(struct sk_buff *, struct hlist_head [], int );
 extern void 	__udp4_lib_err(struct sk_buff *, u32, struct hlist_head []);
 
-extern int	__udp_lib_get_port(struct sock *sk, unsigned short snum,
-				   struct hlist_head udptable[],
-				   int (*)(const struct sock*,const struct sock*));
-extern int	ipv4_rcv_saddr_equal(const struct sock *, const struct sock *);
-
+extern int	udp_v4_get_port(struct sock *sk, unsigned short snum);
 
 extern int	udp_setsockopt(struct sock *sk, int level, int optname,
 			       char __user *optval, int optlen);
diff --git a/net/ipv4/udplite.c b/net/ipv4/udplite.c
index 001b881ca36f..72ce26b6c4d3 100644
--- a/net/ipv4/udplite.c
+++ b/net/ipv4/udplite.c
@@ -17,17 +17,6 @@ DEFINE_SNMP_STAT(struct udp_mib, udplite_statistics)	__read_mostly;
 
 struct hlist_head 	udplite_hash[UDP_HTABLE_SIZE];
 
-int udplite_get_port(struct sock *sk, unsigned short p,
-		     int (*c)(const struct sock *, const struct sock *))
-{
-	return  __udp_lib_get_port(sk, p, udplite_hash, c);
-}
-
-static int udplite_v4_get_port(struct sock *sk, unsigned short snum)
-{
-	return udplite_get_port(sk, snum, ipv4_rcv_saddr_equal);
-}
-
 static int udplite_rcv(struct sk_buff *skb)
 {
 	return __udp4_lib_rcv(skb, udplite_hash, IPPROTO_UDPLITE);
@@ -42,10 +31,9 @@ static	struct net_protocol udplite_protocol = {
 	.handler	= udplite_rcv,
 	.err_handler	= udplite_err,
 	.no_policy	= 1,
+	.netns_ok	= 1,
 };
 
-DEFINE_PROTO_INUSE(udplite)
-
 struct proto 	udplite_prot = {
 	.name		   = "UDP-Lite",
 	.owner		   = THIS_MODULE,
@@ -63,13 +51,13 @@ struct proto 	udplite_prot = {
 	.backlog_rcv	   = udp_queue_rcv_skb,
 	.hash		   = udp_lib_hash,
 	.unhash		   = udp_lib_unhash,
-	.get_port	   = udplite_v4_get_port,
+	.get_port	   = udp_v4_get_port,
 	.obj_size	   = sizeof(struct udp_sock),
+	.h.udp_hash	   = udplite_hash,
 #ifdef CONFIG_COMPAT
 	.compat_setsockopt = compat_udp_setsockopt,
 	.compat_getsockopt = compat_udp_getsockopt,
 #endif
-	REF_PROTO_INUSE(udplite)
 };
 
 static struct inet_protosw udplite4_protosw = {
@@ -83,15 +71,42 @@ static struct inet_protosw udplite4_protosw = {
 };
 
 #ifdef CONFIG_PROC_FS
-static struct file_operations udplite4_seq_fops;
 static struct udp_seq_afinfo udplite4_seq_afinfo = {
-	.owner		= THIS_MODULE,
 	.name		= "udplite",
 	.family		= AF_INET,
 	.hashtable	= udplite_hash,
-	.seq_show	= udp4_seq_show,
-	.seq_fops	= &udplite4_seq_fops,
+	.seq_fops	= {
+		.owner	=	THIS_MODULE,
+	},
+	.seq_ops	= {
+		.show		= udp4_seq_show,
+	},
+};
+
+static int udplite4_proc_init_net(struct net *net)
+{
+	return udp_proc_register(net, &udplite4_seq_afinfo);
+}
+
+static void udplite4_proc_exit_net(struct net *net)
+{
+	udp_proc_unregister(net, &udplite4_seq_afinfo);
+}
+
+static struct pernet_operations udplite4_net_ops = {
+	.init = udplite4_proc_init_net,
+	.exit = udplite4_proc_exit_net,
 };
+
+static __init int udplite4_proc_init(void)
+{
+	return register_pernet_subsys(&udplite4_net_ops);
+}
+#else
+static inline int udplite4_proc_init(void)
+{
+	return 0;
+}
 #endif
 
 void __init udplite4_register(void)
@@ -104,18 +119,15 @@ void __init udplite4_register(void)
 
 	inet_register_protosw(&udplite4_protosw);
 
-#ifdef CONFIG_PROC_FS
-	if (udp_proc_register(&udplite4_seq_afinfo)) /* udplite4_proc_init() */
-		printk(KERN_ERR "%s: Cannot register /proc!\n", __FUNCTION__);
-#endif
+	if (udplite4_proc_init())
+		printk(KERN_ERR "%s: Cannot register /proc!\n", __func__);
 	return;
 
 out_unregister_proto:
 	proto_unregister(&udplite_prot);
 out_register_err:
-	printk(KERN_CRIT "%s: Cannot add UDP-Lite protocol.\n", __FUNCTION__);
+	printk(KERN_CRIT "%s: Cannot add UDP-Lite protocol.\n", __func__);
 }
 
 EXPORT_SYMBOL(udplite_hash);
 EXPORT_SYMBOL(udplite_prot);
-EXPORT_SYMBOL(udplite_get_port);
diff --git a/net/ipv4/xfrm4_policy.c b/net/ipv4/xfrm4_policy.c
index 10ed70491434..c63de0a72aba 100644
--- a/net/ipv4/xfrm4_policy.c
+++ b/net/ipv4/xfrm4_policy.c
@@ -221,7 +221,7 @@ static void xfrm4_dst_ifdown(struct dst_entry *dst, struct net_device *dev,
 	xdst = (struct xfrm_dst *)dst;
 	if (xdst->u.rt.idev->dev == dev) {
 		struct in_device *loopback_idev =
-			in_dev_get(dev->nd_net->loopback_dev);
+			in_dev_get(dev_net(dev)->loopback_dev);
 		BUG_ON(!loopback_idev);
 
 		do {
author	Linus Torvalds <torvalds@linux-foundation.org>	2008-04-18 18:02:35 -0700
committer	Linus Torvalds <torvalds@linux-foundation.org>	2008-04-18 18:02:35 -0700
commit	334d094504c2fe1c44211ecb49146ae6bca8c321 (patch)
tree	d3c0f68e4b9f8e3d2ccc39e7dfe5de0534a5fad9 /net/ipv4
parent	d1a4be630fb068f251d64b62919f143c49ca8057 (diff)
parent	d1643d24c61b725bef399cc1cf2944b4c9c23177 (diff)