Merge branch 'linus' into xen-64bit

author: Ingo Molnar <mingo@elte.hu> 2008-07-21 15:06:09 +0200
committer: Ingo Molnar <mingo@elte.hu> 2008-07-21 15:06:09 +0200
commit: e66d90fb4abd0a27ee96f57a32fb561221c4d6ae (patch)
tree: 3337cba94c7444b06fdb0e8b487287d07b71f4a0 /net/ipv4
parent: 55ca089e2579de90f048aca2a3030b8b2f864813 (diff)
parent: 14b395e35d1afdd8019d11b92e28041fad591b71 (diff)
73 files changed, 1639 insertions, 1361 deletions
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 24eca23c2db..dd919d84285 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -5,8 +5,6 @@
  *
  *		PF_INET protocol family socket handler.
  *
- * Version:	$Id: af_inet.c,v 1.137 2002/02/01 22:01:03 davem Exp $
- *
  * Authors:	Ross Biro
  *		Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
  *		Florian La Roche, <flla@stud.uni-sb.de>
@@ -112,12 +110,11 @@
 #include <net/ipip.h>
 #include <net/inet_common.h>
 #include <net/xfrm.h>
+#include <net/net_namespace.h>
 #ifdef CONFIG_IP_MROUTE
 #include <linux/mroute.h>
 #endif
 
-DEFINE_SNMP_STAT(struct linux_mib, net_statistics) __read_mostly;
-
 extern void ip_mc_drop_socket(struct sock *sk);
 
 /* The inetsw table contains everything that inet_create needs to
@@ -1341,50 +1338,70 @@ static struct net_protocol icmp_protocol = {
 	.netns_ok =	1,
 };
 
-static int __init init_ipv4_mibs(void)
+static __net_init int ipv4_mib_init_net(struct net *net)
 {
-	if (snmp_mib_init((void **)net_statistics,
-			  sizeof(struct linux_mib)) < 0)
-		goto err_net_mib;
-	if (snmp_mib_init((void **)ip_statistics,
-			  sizeof(struct ipstats_mib)) < 0)
-		goto err_ip_mib;
-	if (snmp_mib_init((void **)icmp_statistics,
-			  sizeof(struct icmp_mib)) < 0)
-		goto err_icmp_mib;
-	if (snmp_mib_init((void **)icmpmsg_statistics,
-			  sizeof(struct icmpmsg_mib)) < 0)
-		goto err_icmpmsg_mib;
-	if (snmp_mib_init((void **)tcp_statistics,
+	if (snmp_mib_init((void **)net->mib.tcp_statistics,
 			  sizeof(struct tcp_mib)) < 0)
 		goto err_tcp_mib;
-	if (snmp_mib_init((void **)udp_statistics,
+	if (snmp_mib_init((void **)net->mib.ip_statistics,
+			  sizeof(struct ipstats_mib)) < 0)
+		goto err_ip_mib;
+	if (snmp_mib_init((void **)net->mib.net_statistics,
+			  sizeof(struct linux_mib)) < 0)
+		goto err_net_mib;
+	if (snmp_mib_init((void **)net->mib.udp_statistics,
 			  sizeof(struct udp_mib)) < 0)
 		goto err_udp_mib;
-	if (snmp_mib_init((void **)udplite_statistics,
+	if (snmp_mib_init((void **)net->mib.udplite_statistics,
 			  sizeof(struct udp_mib)) < 0)
 		goto err_udplite_mib;
+	if (snmp_mib_init((void **)net->mib.icmp_statistics,
+			  sizeof(struct icmp_mib)) < 0)
+		goto err_icmp_mib;
+	if (snmp_mib_init((void **)net->mib.icmpmsg_statistics,
+			  sizeof(struct icmpmsg_mib)) < 0)
+		goto err_icmpmsg_mib;
 
-	tcp_mib_init();
-
+	tcp_mib_init(net);
 	return 0;
 
-err_udplite_mib:
-	snmp_mib_free((void **)udp_statistics);
-err_udp_mib:
-	snmp_mib_free((void **)tcp_statistics);
-err_tcp_mib:
-	snmp_mib_free((void **)icmpmsg_statistics);
 err_icmpmsg_mib:
-	snmp_mib_free((void **)icmp_statistics);
+	snmp_mib_free((void **)net->mib.icmp_statistics);
 err_icmp_mib:
-	snmp_mib_free((void **)ip_statistics);
-err_ip_mib:
-	snmp_mib_free((void **)net_statistics);
+	snmp_mib_free((void **)net->mib.udplite_statistics);
+err_udplite_mib:
+	snmp_mib_free((void **)net->mib.udp_statistics);
+err_udp_mib:
+	snmp_mib_free((void **)net->mib.net_statistics);
 err_net_mib:
+	snmp_mib_free((void **)net->mib.ip_statistics);
+err_ip_mib:
+	snmp_mib_free((void **)net->mib.tcp_statistics);
+err_tcp_mib:
 	return -ENOMEM;
 }
 
+static __net_exit void ipv4_mib_exit_net(struct net *net)
+{
+	snmp_mib_free((void **)net->mib.icmpmsg_statistics);
+	snmp_mib_free((void **)net->mib.icmp_statistics);
+	snmp_mib_free((void **)net->mib.udplite_statistics);
+	snmp_mib_free((void **)net->mib.udp_statistics);
+	snmp_mib_free((void **)net->mib.net_statistics);
+	snmp_mib_free((void **)net->mib.ip_statistics);
+	snmp_mib_free((void **)net->mib.tcp_statistics);
+}
+
+static __net_initdata struct pernet_operations ipv4_mib_ops = {
+	.init = ipv4_mib_init_net,
+	.exit = ipv4_mib_exit_net,
+};
+
+static int __init init_ipv4_mibs(void)
+{
+	return register_pernet_subsys(&ipv4_mib_ops);
+}
+
 static int ipv4_proc_init(void);
 
 /*
@@ -1481,14 +1498,15 @@ static int __init inet_init(void)
 	 *	Initialise the multicast router
 	 */
 #if defined(CONFIG_IP_MROUTE)
-	ip_mr_init();
+	if (ip_mr_init())
+		printk(KERN_CRIT "inet_init: Cannot init ipv4 mroute\n");
 #endif
 	/*
 	 *	Initialise per-cpu ipv4 mibs
 	 */
 
 	if (init_ipv4_mibs())
-		printk(KERN_CRIT "inet_init: Cannot init ipv4 mibs\n"); ;
+		printk(KERN_CRIT "inet_init: Cannot init ipv4 mibs\n");
 
 	ipv4_proc_init();
 
@@ -1560,5 +1578,4 @@ EXPORT_SYMBOL(inet_sock_destruct);
 EXPORT_SYMBOL(inet_stream_connect);
 EXPORT_SYMBOL(inet_stream_ops);
 EXPORT_SYMBOL(inet_unregister_protosw);
-EXPORT_SYMBOL(net_statistics);
 EXPORT_SYMBOL(sysctl_ip_nonlocal_bind);
diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c
index 9b539fa9fe1..b043eda60b0 100644
--- a/net/ipv4/arp.c
+++ b/net/ipv4/arp.c
@@ -1,7 +1,5 @@
 /* linux/net/ipv4/arp.c
  *
- * Version:	$Id: arp.c,v 1.99 2001/08/30 22:55:42 davem Exp $
- *
  * Copyright (C) 1994 by Florian  La Roche
  *
  * This module implements the Address Resolution Protocol ARP (RFC 826),
@@ -423,11 +421,12 @@ static int arp_filter(__be32 sip, __be32 tip, struct net_device *dev)
 	struct rtable *rt;
 	int flag = 0;
 	/*unsigned long now; */
+	struct net *net = dev_net(dev);
 
-	if (ip_route_output_key(dev_net(dev), &rt, &fl) < 0)
+	if (ip_route_output_key(net, &rt, &fl) < 0)
 		return 1;
 	if (rt->u.dst.dev != dev) {
-		NET_INC_STATS_BH(LINUX_MIB_ARPFILTER);
+		NET_INC_STATS_BH(net, LINUX_MIB_ARPFILTER);
 		flag = 1;
 	}
 	ip_rt_put(rt);
@@ -1199,7 +1198,7 @@ static int arp_netdev_event(struct notifier_block *this, unsigned long event, vo
 	switch (event) {
 	case NETDEV_CHANGEADDR:
 		neigh_changeaddr(&arp_tbl, dev);
-		rt_cache_flush(0);
+		rt_cache_flush(dev_net(dev), 0);
 		break;
 	default:
 		break;
diff --git a/net/ipv4/datagram.c b/net/ipv4/datagram.c
index 0c0c73f368c..5e6c5a0f3fd 100644
--- a/net/ipv4/datagram.c
+++ b/net/ipv4/datagram.c
@@ -52,7 +52,7 @@ int ip4_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
 			       inet->sport, usin->sin_port, sk, 1);
 	if (err) {
 		if (err == -ENETUNREACH)
-			IP_INC_STATS_BH(IPSTATS_MIB_OUTNOROUTES);
+			IP_INC_STATS_BH(sock_net(sk), IPSTATS_MIB_OUTNOROUTES);
 		return err;
 	}
 
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index 79a7ef6209f..2e667e2f90d 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -1,8 +1,6 @@
 /*
  *	NET3	IP device support routines.
  *
- *	Version: $Id: devinet.c,v 1.44 2001/10/31 21:55:54 davem Exp $
- *
  *		This program is free software; you can redistribute it and/or
  *		modify it under the terms of the GNU General Public License
  *		as published by the Free Software Foundation; either version
@@ -170,6 +168,8 @@ static struct in_device *inetdev_init(struct net_device *dev)
 	in_dev->dev = dev;
 	if ((in_dev->arp_parms = neigh_parms_alloc(dev, &arp_tbl)) == NULL)
 		goto out_kfree;
+	if (IPV4_DEVCONF(in_dev->cnf, FORWARDING))
+		dev_disable_lro(dev);
 	/* Reference in_dev->dev */
 	dev_hold(dev);
 	/* Account for reference dev->ip_ptr (below) */
@@ -1013,7 +1013,7 @@ static void inetdev_changename(struct net_device *dev, struct in_device *in_dev)
 		memcpy(old, ifa->ifa_label, IFNAMSIZ);
 		memcpy(ifa->ifa_label, dev->name, IFNAMSIZ);
 		if (named++ == 0)
-			continue;
+			goto skip;
 		dot = strchr(old, ':');
 		if (dot == NULL) {
 			sprintf(old, ":%d", named);
@@ -1024,6 +1024,8 @@ static void inetdev_changename(struct net_device *dev, struct in_device *in_dev)
 		} else {
 			strcpy(ifa->ifa_label + (IFNAMSIZ - strlen(dot) - 1), dot);
 		}
+skip:
+		rtmsg_ifa(RTM_NEWADDR, ifa, NULL, 0);
 	}
 }
 
@@ -1241,6 +1243,8 @@ static void inet_forward_change(struct net *net)
 	read_lock(&dev_base_lock);
 	for_each_netdev(net, dev) {
 		struct in_device *in_dev;
+		if (on)
+			dev_disable_lro(dev);
 		rcu_read_lock();
 		in_dev = __in_dev_get_rcu(dev);
 		if (in_dev)
@@ -1248,8 +1252,6 @@ static void inet_forward_change(struct net *net)
 		rcu_read_unlock();
 	}
 	read_unlock(&dev_base_lock);
-
-	rt_cache_flush(0);
 }
 
 static int devinet_conf_proc(ctl_table *ctl, int write,
@@ -1335,10 +1337,19 @@ static int devinet_sysctl_forward(ctl_table *ctl, int write,
 	if (write && *valp != val) {
 		struct net *net = ctl->extra2;
 
-		if (valp == &IPV4_DEVCONF_ALL(net, FORWARDING))
-			inet_forward_change(net);
-		else if (valp != &IPV4_DEVCONF_DFLT(net, FORWARDING))
-			rt_cache_flush(0);
+		if (valp != &IPV4_DEVCONF_DFLT(net, FORWARDING)) {
+			rtnl_lock();
+			if (valp == &IPV4_DEVCONF_ALL(net, FORWARDING)) {
+				inet_forward_change(net);
+			} else if (*valp) {
+				struct ipv4_devconf *cnf = ctl->extra1;
+				struct in_device *idev =
+					container_of(cnf, struct in_device, cnf);
+				dev_disable_lro(idev->dev);
+			}
+			rtnl_unlock();
+			rt_cache_flush(net, 0);
+		}
 	}
 
 	return ret;
@@ -1351,9 +1362,10 @@ int ipv4_doint_and_flush(ctl_table *ctl, int write,
 	int *valp = ctl->data;
 	int val = *valp;
 	int ret = proc_dointvec(ctl, write, filp, buffer, lenp, ppos);
+	struct net *net = ctl->extra2;
 
 	if (write && *valp != val)
-		rt_cache_flush(0);
+		rt_cache_flush(net, 0);
 
 	return ret;
 }
@@ -1364,9 +1376,10 @@ int ipv4_doint_and_flush_strategy(ctl_table *table, int __user *name, int nlen,
 {
 	int ret = devinet_conf_sysctl(table, name, nlen, oldval, oldlenp,
 				      newval, newlen);
+	struct net *net = table->extra2;
 
 	if (ret == 1)
-		rt_cache_flush(0);
+		rt_cache_flush(net, 0);
 
 	return ret;
 }
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index 0b2ac6a3d90..65c1503f8cc 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -5,8 +5,6 @@
  *
  *		IPv4 Forwarding Information Base: FIB frontend.
  *
- * Version:	$Id: fib_frontend.c,v 1.26 2001/10/31 21:55:54 davem Exp $
- *
  * Authors:	Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
  *
  *		This program is free software; you can redistribute it and/or
@@ -146,7 +144,7 @@ static void fib_flush(struct net *net)
 	}
 
 	if (flushed)
-		rt_cache_flush(-1);
+		rt_cache_flush(net, -1);
 }
 
 /*
@@ -899,21 +897,22 @@ static void fib_disable_ip(struct net_device *dev, int force)
 {
 	if (fib_sync_down_dev(dev, force))
 		fib_flush(dev_net(dev));
-	rt_cache_flush(0);
+	rt_cache_flush(dev_net(dev), 0);
 	arp_ifdown(dev);
 }
 
 static int fib_inetaddr_event(struct notifier_block *this, unsigned long event, void *ptr)
 {
 	struct in_ifaddr *ifa = (struct in_ifaddr*)ptr;
+	struct net_device *dev = ifa->ifa_dev->dev;
 
 	switch (event) {
 	case NETDEV_UP:
 		fib_add_ifaddr(ifa);
 #ifdef CONFIG_IP_ROUTE_MULTIPATH
-		fib_sync_up(ifa->ifa_dev->dev);
+		fib_sync_up(dev);
 #endif
-		rt_cache_flush(-1);
+		rt_cache_flush(dev_net(dev), -1);
 		break;
 	case NETDEV_DOWN:
 		fib_del_ifaddr(ifa);
@@ -921,9 +920,9 @@ static int fib_inetaddr_event(struct notifier_block *this, unsigned long event,
 			/* Last address was deleted from this interface.
 			   Disable IP.
 			 */
-			fib_disable_ip(ifa->ifa_dev->dev, 1);
+			fib_disable_ip(dev, 1);
 		} else {
-			rt_cache_flush(-1);
+			rt_cache_flush(dev_net(dev), -1);
 		}
 		break;
 	}
@@ -951,14 +950,14 @@ static int fib_netdev_event(struct notifier_block *this, unsigned long event, vo
 #ifdef CONFIG_IP_ROUTE_MULTIPATH
 		fib_sync_up(dev);
 #endif
-		rt_cache_flush(-1);
+		rt_cache_flush(dev_net(dev), -1);
 		break;
 	case NETDEV_DOWN:
 		fib_disable_ip(dev, 0);
 		break;
 	case NETDEV_CHANGEMTU:
 	case NETDEV_CHANGE:
-		rt_cache_flush(0);
+		rt_cache_flush(dev_net(dev), 0);
 		break;
 	}
 	return NOTIFY_DONE;
diff --git a/net/ipv4/fib_hash.c b/net/ipv4/fib_hash.c
index 2e2fc3376ac..c8cac6c7f88 100644
--- a/net/ipv4/fib_hash.c
+++ b/net/ipv4/fib_hash.c
@@ -5,8 +5,6 @@
  *
  *		IPv4 FIB: lookup engine and maintenance routines.
  *
- * Version:	$Id: fib_hash.c,v 1.13 2001/10/31 21:55:54 davem Exp $
- *
  * Authors:	Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
  *
  *		This program is free software; you can redistribute it and/or
@@ -474,7 +472,7 @@ static int fn_hash_insert(struct fib_table *tb, struct fib_config *cfg)
 
 			fib_release_info(fi_drop);
 			if (state & FA_S_ACCESSED)
-				rt_cache_flush(-1);
+				rt_cache_flush(cfg->fc_nlinfo.nl_net, -1);
 			rtmsg_fib(RTM_NEWROUTE, key, fa, cfg->fc_dst_len, tb->tb_id,
 				  &cfg->fc_nlinfo, NLM_F_REPLACE);
 			return 0;
@@ -534,7 +532,7 @@ static int fn_hash_insert(struct fib_table *tb, struct fib_config *cfg)
 
 	if (new_f)
 		fz->fz_nent++;
-	rt_cache_flush(-1);
+	rt_cache_flush(cfg->fc_nlinfo.nl_net, -1);
 
 	rtmsg_fib(RTM_NEWROUTE, key, new_fa, cfg->fc_dst_len, tb->tb_id,
 		  &cfg->fc_nlinfo, 0);
@@ -616,7 +614,7 @@ static int fn_hash_delete(struct fib_table *tb, struct fib_config *cfg)
 		write_unlock_bh(&fib_hash_lock);
 
 		if (fa->fa_state & FA_S_ACCESSED)
-			rt_cache_flush(-1);
+			rt_cache_flush(cfg->fc_nlinfo.nl_net, -1);
 		fn_free_alias(fa, f);
 		if (kill_fn) {
 			fn_free_node(f);
diff --git a/net/ipv4/fib_rules.c b/net/ipv4/fib_rules.c
index 1fb56876be5..6080d712082 100644
--- a/net/ipv4/fib_rules.c
+++ b/net/ipv4/fib_rules.c
@@ -258,9 +258,9 @@ static size_t fib4_rule_nlmsg_payload(struct fib_rule *rule)
 	       + nla_total_size(4); /* flow */
 }
 
-static void fib4_rule_flush_cache(void)
+static void fib4_rule_flush_cache(struct fib_rules_ops *ops)
 {
-	rt_cache_flush(-1);
+	rt_cache_flush(ops->fro_net, -1);
 }
 
 static struct fib_rules_ops fib4_rules_ops_template = {
diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index 0d4d72827e4..ded2ae34eab 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -5,8 +5,6 @@
  *
  *		IPv4 Forwarding Information Base: semantics.
  *
- * Version:	$Id: fib_semantics.c,v 1.19 2002/01/12 07:54:56 davem Exp $
- *
  * Authors:	Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
  *
  *		This program is free software; you can redistribute it and/or
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index e1600ad8fb0..5cb72786a8a 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -22,8 +22,6 @@
  * IP-address lookup using LC-tries. Stefan Nilsson and Gunnar Karlsson
  * IEEE Journal on Selected Areas in Communications, 17(6):1083-1092, June 1999
  *
- * Version:	$Id: fib_trie.c,v 1.3 2005/06/08 14:20:01 robert Exp $
- *
  *
  * Code from fib_hash has been reused which includes the following header:
  *
@@ -1273,7 +1271,7 @@ static int fn_trie_insert(struct fib_table *tb, struct fib_config *cfg)
 
 			fib_release_info(fi_drop);
 			if (state & FA_S_ACCESSED)
-				rt_cache_flush(-1);
+				rt_cache_flush(cfg->fc_nlinfo.nl_net, -1);
 			rtmsg_fib(RTM_NEWROUTE, htonl(key), new_fa, plen,
 				tb->tb_id, &cfg->fc_nlinfo, NLM_F_REPLACE);
 
@@ -1318,7 +1316,7 @@ static int fn_trie_insert(struct fib_table *tb, struct fib_config *cfg)
 	list_add_tail_rcu(&new_fa->fa_list,
 			  (fa ? &fa->fa_list : fa_head));
 
-	rt_cache_flush(-1);
+	rt_cache_flush(cfg->fc_nlinfo.nl_net, -1);
 	rtmsg_fib(RTM_NEWROUTE, htonl(key), new_fa, plen, tb->tb_id,
 		  &cfg->fc_nlinfo, 0);
 succeeded:
@@ -1661,7 +1659,7 @@ static int fn_trie_delete(struct fib_table *tb, struct fib_config *cfg)
 		trie_leaf_remove(t, l);
 
 	if (fa->fa_state & FA_S_ACCESSED)
-		rt_cache_flush(-1);
+		rt_cache_flush(cfg->fc_nlinfo.nl_net, -1);
 
 	fib_release_info(fa->fa_info);
 	alias_free_mem_rcu(fa);
@@ -2253,25 +2251,7 @@ static int fib_triestat_seq_show(struct seq_file *seq, void *v)
 
 static int fib_triestat_seq_open(struct inode *inode, struct file *file)
 {
-	int err;
-	struct net *net;
-
-	net = get_proc_net(inode);
-	if (net == NULL)
-		return -ENXIO;
-	err = single_open(file, fib_triestat_seq_show, net);
-	if (err < 0) {
-		put_net(net);
-		return err;
-	}
-	return 0;
-}
-
-static int fib_triestat_seq_release(struct inode *ino, struct file *f)
-{
-	struct seq_file *seq = f->private_data;
-	put_net(seq->private);
-	return single_release(ino, f);
+	return single_open_net(inode, file, fib_triestat_seq_show);
 }
 
 static const struct file_operations fib_triestat_fops = {
@@ -2279,7 +2259,7 @@ static const struct file_operations fib_triestat_fops = {
 	.open	= fib_triestat_seq_open,
 	.read	= seq_read,
 	.llseek	= seq_lseek,
-	.release = fib_triestat_seq_release,
+	.release = single_release_net,
 };
 
 static struct node *fib_trie_get_idx(struct seq_file *seq, loff_t pos)
diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index 87397351dda..860558633b2 100644
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -3,8 +3,6 @@
  *
  *		Alan Cox, <alan@redhat.com>
  *
- *	Version: $Id: icmp.c,v 1.85 2002/02/01 22:01:03 davem Exp $
- *
  *	This program is free software; you can redistribute it and/or
  *	modify it under the terms of the GNU General Public License
  *	as published by the Free Software Foundation; either version
@@ -113,12 +111,6 @@ struct icmp_bxm {
 	unsigned char  optbuf[40];
 };
 
-/*
- *	Statistics
- */
-DEFINE_SNMP_STAT(struct icmp_mib, icmp_statistics) __read_mostly;
-DEFINE_SNMP_STAT(struct icmpmsg_mib, icmpmsg_statistics) __read_mostly;
-
 /* An array of errno for error messages from dest unreach. */
 /* RFC 1122: 3.2.2.1 States that NET_UNREACH, HOST_UNREACH and SR_FAILED MUST be considered 'transient errs'. */
 
@@ -298,10 +290,10 @@ out:
 /*
  *	Maintain the counters used in the SNMP statistics for outgoing ICMP
  */
-void icmp_out_count(unsigned char type)
+void icmp_out_count(struct net *net, unsigned char type)
 {
-	ICMPMSGOUT_INC_STATS(type);
-	ICMP_INC_STATS(ICMP_MIB_OUTMSGS);
+	ICMPMSGOUT_INC_STATS(net, type);
+	ICMP_INC_STATS(net, ICMP_MIB_OUTMSGS);
 }
 
 /*
@@ -765,7 +757,7 @@ static void icmp_unreach(struct sk_buff *skb)
 out:
 	return;
 out_err:
-	ICMP_INC_STATS_BH(ICMP_MIB_INERRORS);
+	ICMP_INC_STATS_BH(net, ICMP_MIB_INERRORS);
 	goto out;
 }
 
@@ -805,7 +797,7 @@ static void icmp_redirect(struct sk_buff *skb)
 out:
 	return;
 out_err:
-	ICMP_INC_STATS_BH(ICMP_MIB_INERRORS);
+	ICMP_INC_STATS_BH(dev_net(skb->dev), ICMP_MIB_INERRORS);
 	goto out;
 }
 
@@ -876,7 +868,7 @@ static void icmp_timestamp(struct sk_buff *skb)
 out:
 	return;
 out_err:
-	ICMP_INC_STATS_BH(ICMP_MIB_INERRORS);
+	ICMP_INC_STATS_BH(dev_net(skb->dst->dev), ICMP_MIB_INERRORS);
 	goto out;
 }
 
@@ -975,6 +967,7 @@ int icmp_rcv(struct sk_buff *skb)
 {
 	struct icmphdr *icmph;
 	struct rtable *rt = skb->rtable;
+	struct net *net = dev_net(rt->u.dst.dev);
 
 	if (!xfrm4_policy_check(NULL, XFRM_POLICY_IN, skb)) {
 		int nh;
@@ -995,7 +988,7 @@ int icmp_rcv(struct sk_buff *skb)
 		skb_set_network_header(skb, nh);
 	}
 
-	ICMP_INC_STATS_BH(ICMP_MIB_INMSGS);
+	ICMP_INC_STATS_BH(net, ICMP_MIB_INMSGS);
 
 	switch (skb->ip_summed) {
 	case CHECKSUM_COMPLETE:
@@ -1013,7 +1006,7 @@ int icmp_rcv(struct sk_buff *skb)
 
 	icmph = icmp_hdr(skb);
 
-	ICMPMSGIN_INC_STATS_BH(icmph->type);
+	ICMPMSGIN_INC_STATS_BH(net, icmph->type);
 	/*
 	 *	18 is the highest 'known' ICMP type. Anything else is a mystery
 	 *
@@ -1029,9 +1022,6 @@ 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).
@@ -1057,7 +1047,7 @@ drop:
 	kfree_skb(skb);
 	return 0;
 error:
-	ICMP_INC_STATS_BH(ICMP_MIB_INERRORS);
+	ICMP_INC_STATS_BH(net, ICMP_MIB_INERRORS);
 	goto drop;
 }
 
@@ -1217,5 +1207,4 @@ int __init icmp_init(void)
 
 EXPORT_SYMBOL(icmp_err_convert);
 EXPORT_SYMBOL(icmp_send);
-EXPORT_SYMBOL(icmp_statistics);
 EXPORT_SYMBOL(xrlim_allow);
diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index 2769dc4a4c8..6203ece5360 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -8,8 +8,6 @@
  *	the older version didn't come out right using gcc 2.5.8, the newer one
  *	seems to fall out with gcc 2.6.2.
  *
- *	Version: $Id: igmp.c,v 1.47 2002/02/01 22:01:03 davem Exp $
- *
  *	Authors:
  *		Alan Cox <Alan.Cox@linux.org>
  *
@@ -1198,7 +1196,7 @@ void ip_mc_inc_group(struct in_device *in_dev, __be32 addr)
 
 	ASSERT_RTNL();
 
-	if (dev_net(in_dev->dev) != &init_net)
+	if (!net_eq(dev_net(in_dev->dev), &init_net))
 		return;
 
 	for (im=in_dev->mc_list; im; im=im->next) {
@@ -1280,7 +1278,7 @@ void ip_mc_dec_group(struct in_device *in_dev, __be32 addr)
 
 	ASSERT_RTNL();
 
-	if (dev_net(in_dev->dev) != &init_net)
+	if (!net_eq(dev_net(in_dev->dev), &init_net))
 		return;
 
 	for (ip=&in_dev->mc_list; (i=*ip)!=NULL; ip=&i->next) {
@@ -1310,7 +1308,7 @@ void ip_mc_down(struct in_device *in_dev)
 
 	ASSERT_RTNL();
 
-	if (dev_net(in_dev->dev) != &init_net)
+	if (!net_eq(dev_net(in_dev->dev), &init_net))
 		return;
 
 	for (i=in_dev->mc_list; i; i=i->next)
@@ -1333,7 +1331,7 @@ void ip_mc_init_dev(struct in_device *in_dev)
 {
 	ASSERT_RTNL();
 
-	if (dev_net(in_dev->dev) != &init_net)
+	if (!net_eq(dev_net(in_dev->dev), &init_net))
 		return;
 
 	in_dev->mc_tomb = NULL;
@@ -1359,7 +1357,7 @@ void ip_mc_up(struct in_device *in_dev)
 
 	ASSERT_RTNL();
 
-	if (dev_net(in_dev->dev) != &init_net)
+	if (!net_eq(dev_net(in_dev->dev), &init_net))
 		return;
 
 	ip_mc_inc_group(in_dev, IGMP_ALL_HOSTS);
@@ -1378,7 +1376,7 @@ void ip_mc_destroy_dev(struct in_device *in_dev)
 
 	ASSERT_RTNL();
 
-	if (dev_net(in_dev->dev) != &init_net)
+	if (!net_eq(dev_net(in_dev->dev), &init_net))
 		return;
 
 	/* Deactivate timers */
@@ -1762,7 +1760,7 @@ 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)
+	if (!net_eq(sock_net(sk), &init_net))
 		return -EPROTONOSUPPORT;
 
 	rtnl_lock();
@@ -1833,7 +1831,7 @@ int ip_mc_leave_group(struct sock *sk, struct ip_mreqn *imr)
 	u32 ifindex;
 	int ret = -EADDRNOTAVAIL;
 
-	if (sock_net(sk) != &init_net)
+	if (!net_eq(sock_net(sk), &init_net))
 		return -EPROTONOSUPPORT;
 
 	rtnl_lock();
@@ -1881,7 +1879,7 @@ 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)
+	if (!net_eq(sock_net(sk), &init_net))
 		return -EPROTONOSUPPORT;
 
 	rtnl_lock();
@@ -2017,7 +2015,7 @@ 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)
+	if (!net_eq(sock_net(sk), &init_net))
 		return -EPROTONOSUPPORT;
 
 	rtnl_lock();
@@ -2100,7 +2098,7 @@ int ip_mc_msfget(struct sock *sk, struct ip_msfilter *msf,
 	if (!ipv4_is_multicast(addr))
 		return -EINVAL;
 
-	if (sock_net(sk) != &init_net)
+	if (!net_eq(sock_net(sk), &init_net))
 		return -EPROTONOSUPPORT;
 
 	rtnl_lock();
@@ -2165,7 +2163,7 @@ int ip_mc_gsfget(struct sock *sk, struct group_filter *gsf,
 	if (!ipv4_is_multicast(addr))
 		return -EINVAL;
 
-	if (sock_net(sk) != &init_net)
+	if (!net_eq(sock_net(sk), &init_net))
 		return -EPROTONOSUPPORT;
 
 	rtnl_lock();
@@ -2252,7 +2250,7 @@ void ip_mc_drop_socket(struct sock *sk)
 	if (inet->mc_list == NULL)
 		return;
 
-	if (sock_net(sk) != &init_net)
+	if (!net_eq(sock_net(sk), &init_net))
 		return;
 
 	rtnl_lock();
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index ec834480abe..bb81c958b74 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -103,7 +103,8 @@ int inet_csk_get_port(struct sock *sk, unsigned short snum)
 		rover = net_random() % remaining + low;
 
 		do {
-			head = &hashinfo->bhash[inet_bhashfn(rover, hashinfo->bhash_size)];
+			head = &hashinfo->bhash[inet_bhashfn(net, rover,
+					hashinfo->bhash_size)];
 			spin_lock(&head->lock);
 			inet_bind_bucket_for_each(tb, node, &head->chain)
 				if (tb->ib_net == net && tb->port == rover)
@@ -130,7 +131,8 @@ int inet_csk_get_port(struct sock *sk, unsigned short snum)
 		 */
 		snum = rover;
 	} else {
-		head = &hashinfo->bhash[inet_bhashfn(snum, hashinfo->bhash_size)];
+		head = &hashinfo->bhash[inet_bhashfn(net, snum,
+				hashinfo->bhash_size)];
 		spin_lock(&head->lock);
 		inet_bind_bucket_for_each(tb, node, &head->chain)
 			if (tb->ib_net == net && tb->port == snum)
@@ -336,15 +338,16 @@ struct dst_entry* inet_csk_route_req(struct sock *sk,
 			    .uli_u = { .ports =
 				       { .sport = inet_sk(sk)->sport,
 					 .dport = ireq->rmt_port } } };
+	struct net *net = sock_net(sk);
 
 	security_req_classify_flow(req, &fl);
-	if (ip_route_output_flow(sock_net(sk), &rt, &fl, sk, 0)) {
-		IP_INC_STATS_BH(IPSTATS_MIB_OUTNOROUTES);
+	if (ip_route_output_flow(net, &rt, &fl, sk, 0)) {
+		IP_INC_STATS_BH(net, IPSTATS_MIB_OUTNOROUTES);
 		return NULL;
 	}
 	if (opt && opt->is_strictroute && rt->rt_dst != rt->rt_gateway) {
 		ip_rt_put(rt);
-		IP_INC_STATS_BH(IPSTATS_MIB_OUTNOROUTES);
+		IP_INC_STATS_BH(net, IPSTATS_MIB_OUTNOROUTES);
 		return NULL;
 	}
 	return &rt->u.dst;
diff --git a/net/ipv4/inet_diag.c b/net/ipv4/inet_diag.c
index da97695e709..c10036e7a46 100644
--- a/net/ipv4/inet_diag.c
+++ b/net/ipv4/inet_diag.c
@@ -1,8 +1,6 @@
 /*
  * inet_diag.c	Module for monitoring INET transport protocols sockets.
  *
- * Version:	$Id: inet_diag.c,v 1.3 2002/02/01 22:01:04 davem Exp $
- *
  * Authors:	Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
  *
  *	This program is free software; you can redistribute it and/or
diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c
index 2023d37b270..115f53722d2 100644
--- a/net/ipv4/inet_hashtables.c
+++ b/net/ipv4/inet_hashtables.c
@@ -70,7 +70,8 @@ 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->h.hashinfo;
-	const int bhash = inet_bhashfn(inet_sk(sk)->num, hashinfo->bhash_size);
+	const int bhash = inet_bhashfn(sock_net(sk), inet_sk(sk)->num,
+			hashinfo->bhash_size);
 	struct inet_bind_hashbucket *head = &hashinfo->bhash[bhash];
 	struct inet_bind_bucket *tb;
 
@@ -95,7 +96,8 @@ 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);
+	const int bhash = inet_bhashfn(sock_net(sk), inet_sk(child)->num,
+			table->bhash_size);
 	struct inet_bind_hashbucket *head = &table->bhash[bhash];
 	struct inet_bind_bucket *tb;
 
@@ -192,7 +194,7 @@ struct sock *__inet_lookup_listener(struct net *net,
 	const struct hlist_head *head;
 
 	read_lock(&hashinfo->lhash_lock);
-	head = &hashinfo->listening_hash[inet_lhashfn(hnum)];
+	head = &hashinfo->listening_hash[inet_lhashfn(net, hnum)];
 	if (!hlist_empty(head)) {
 		const struct inet_sock *inet = inet_sk((sk = __sk_head(head)));
 
@@ -225,7 +227,7 @@ struct sock * __inet_lookup_established(struct net *net,
 	/* Optimize here for direct hit, only listening connections can
 	 * have wildcards anyways.
 	 */
-	unsigned int hash = inet_ehashfn(daddr, hnum, saddr, sport);
+	unsigned int hash = inet_ehashfn(net, daddr, hnum, saddr, sport);
 	struct inet_ehash_bucket *head = inet_ehash_bucket(hashinfo, hash);
 	rwlock_t *lock = inet_ehash_lockp(hashinfo, hash);
 
@@ -265,13 +267,13 @@ static int __inet_check_established(struct inet_timewait_death_row *death_row,
 	int dif = sk->sk_bound_dev_if;
 	INET_ADDR_COOKIE(acookie, saddr, daddr)
 	const __portpair ports = INET_COMBINED_PORTS(inet->dport, lport);
-	unsigned int hash = inet_ehashfn(daddr, lport, saddr, inet->dport);
+	struct net *net = sock_net(sk);
+	unsigned int hash = inet_ehashfn(net, daddr, lport, saddr, inet->dport);
 	struct inet_ehash_bucket *head = inet_ehash_bucket(hinfo, hash);
 	rwlock_t *lock = inet_ehash_lockp(hinfo, hash);
 	struct sock *sk2;
 	const struct hlist_node *node;
 	struct inet_timewait_sock *tw;
-	struct net *net = sock_net(sk);
 
 	prefetch(head->chain.first);
 	write_lock(lock);
@@ -310,11 +312,11 @@ unique:
 
 	if (twp) {
 		*twp = tw;
-		NET_INC_STATS_BH(LINUX_MIB_TIMEWAITRECYCLED);
+		NET_INC_STATS_BH(net, LINUX_MIB_TIMEWAITRECYCLED);
 	} else if (tw) {
 		/* Silly. Should hash-dance instead... */
 		inet_twsk_deschedule(tw, death_row);
-		NET_INC_STATS_BH(LINUX_MIB_TIMEWAITRECYCLED);
+		NET_INC_STATS_BH(net, LINUX_MIB_TIMEWAITRECYCLED);
 
 		inet_twsk_put(tw);
 	}
@@ -438,7 +440,8 @@ int __inet_hash_connect(struct inet_timewait_death_row *death_row,
 		local_bh_disable();
 		for (i = 1; i <= remaining; i++) {
 			port = low + (i + offset) % remaining;
-			head = &hinfo->bhash[inet_bhashfn(port, hinfo->bhash_size)];
+			head = &hinfo->bhash[inet_bhashfn(net, port,
+					hinfo->bhash_size)];
 			spin_lock(&head->lock);
 
 			/* Does not bother with rcv_saddr checks,
@@ -493,7 +496,7 @@ ok:
 		goto out;
 	}
 
-	head = &hinfo->bhash[inet_bhashfn(snum, hinfo->bhash_size)];
+	head = &hinfo->bhash[inet_bhashfn(net, snum, hinfo->bhash_size)];
 	tb  = inet_csk(sk)->icsk_bind_hash;
 	spin_lock_bh(&head->lock);
 	if (sk_head(&tb->owners) == sk && !sk->sk_bind_node.next) {
diff --git a/net/ipv4/inet_timewait_sock.c b/net/ipv4/inet_timewait_sock.c
index ce16e9ac24c..75c2def8f9a 100644
--- a/net/ipv4/inet_timewait_sock.c
+++ b/net/ipv4/inet_timewait_sock.c
@@ -32,7 +32,8 @@ static void __inet_twsk_kill(struct inet_timewait_sock *tw,
 	write_unlock(lock);
 
 	/* Disassociate with bind bucket. */
-	bhead = &hashinfo->bhash[inet_bhashfn(tw->tw_num, hashinfo->bhash_size)];
+	bhead = &hashinfo->bhash[inet_bhashfn(twsk_net(tw), tw->tw_num,
+			hashinfo->bhash_size)];
 	spin_lock(&bhead->lock);
 	tb = tw->tw_tb;
 	__hlist_del(&tw->tw_bind_node);
@@ -81,7 +82,8 @@ void __inet_twsk_hashdance(struct inet_timewait_sock *tw, struct sock *sk,
 	   Note, that any socket with inet->num != 0 MUST be bound in
 	   binding cache, even if it is closed.
 	 */
-	bhead = &hashinfo->bhash[inet_bhashfn(inet->num, hashinfo->bhash_size)];
+	bhead = &hashinfo->bhash[inet_bhashfn(twsk_net(tw), inet->num,
+			hashinfo->bhash_size)];
 	spin_lock(&bhead->lock);
 	tw->tw_tb = icsk->icsk_bind_hash;
 	BUG_TRAP(icsk->icsk_bind_hash);
@@ -158,6 +160,9 @@ rescan:
 		__inet_twsk_del_dead_node(tw);
 		spin_unlock(&twdr->death_lock);
 		__inet_twsk_kill(tw, twdr->hashinfo);
+#ifdef CONFIG_NET_NS
+		NET_INC_STATS_BH(twsk_net(tw), LINUX_MIB_TIMEWAITED);
+#endif
 		inet_twsk_put(tw);
 		killed++;
 		spin_lock(&twdr->death_lock);
@@ -176,8 +181,9 @@ rescan:
 	}
 
 	twdr->tw_count -= killed;
-	NET_ADD_STATS_BH(LINUX_MIB_TIMEWAITED, killed);
-
+#ifndef CONFIG_NET_NS
+	NET_ADD_STATS_BH(&init_net, LINUX_MIB_TIMEWAITED, killed);
+#endif
 	return ret;
 }
 
@@ -370,6 +376,9 @@ void inet_twdr_twcal_tick(unsigned long data)
 						       &twdr->twcal_row[slot]) {
 				__inet_twsk_del_dead_node(tw);
 				__inet_twsk_kill(tw, twdr->hashinfo);
+#ifdef CONFIG_NET_NS
+				NET_INC_STATS_BH(twsk_net(tw), LINUX_MIB_TIMEWAITKILLED);
+#endif
 				inet_twsk_put(tw);
 				killed++;
 			}
@@ -393,7 +402,9 @@ void inet_twdr_twcal_tick(unsigned long data)
 out:
 	if ((twdr->tw_count -= killed) == 0)
 		del_timer(&twdr->tw_timer);
-	NET_ADD_STATS_BH(LINUX_MIB_TIMEWAITKILLED, killed);
+#ifndef CONFIG_NET_NS
+	NET_ADD_STATS_BH(&init_net, LINUX_MIB_TIMEWAITKILLED, killed);
+#endif
 	spin_unlock(&twdr->death_lock);
 }
 
diff --git a/net/ipv4/inetpeer.c b/net/ipv4/inetpeer.c
index af995198f64..a456ceeac3f 100644
--- a/net/ipv4/inetpeer.c
+++ b/net/ipv4/inetpeer.c
@@ -3,8 +3,6 @@
  *
  *  This source is covered by the GNU GPL, the same as all kernel sources.
  *
- *  Version:	$Id: inetpeer.c,v 1.7 2001/09/20 21:22:50 davem Exp $
- *
  *  Authors:	Andrey V. Savochkin <saw@msu.ru>
  */
 
diff --git a/net/ipv4/ip_forward.c b/net/ipv4/ip_forward.c
index 4813c39b438..450016b89a1 100644
--- a/net/ipv4/ip_forward.c
+++ b/net/ipv4/ip_forward.c
@@ -5,8 +5,6 @@
  *
  *		The IP forwarding functionality.
  *
- * Version:	$Id: ip_forward.c,v 1.48 2000/12/13 18:31:48 davem Exp $
- *
  * Authors:	see ip.c
  *
  * Fixes:
@@ -44,7 +42,7 @@ static int ip_forward_finish(struct sk_buff *skb)
 {
 	struct ip_options * opt	= &(IPCB(skb)->opt);
 
-	IP_INC_STATS_BH(IPSTATS_MIB_OUTFORWDATAGRAMS);
+	IP_INC_STATS_BH(dev_net(skb->dst->dev), IPSTATS_MIB_OUTFORWDATAGRAMS);
 
 	if (unlikely(opt->optlen))
 		ip_forward_options(skb);
@@ -58,6 +56,9 @@ int ip_forward(struct sk_buff *skb)
 	struct rtable *rt;	/* Route we use */
 	struct ip_options * opt	= &(IPCB(skb)->opt);
 
+	if (skb_warn_if_lro(skb))
+		goto drop;
+
 	if (!xfrm4_policy_check(NULL, XFRM_POLICY_FWD, skb))
 		goto drop;
 
@@ -87,7 +88,7 @@ int ip_forward(struct sk_buff *skb)
 
 	if (unlikely(skb->len > dst_mtu(&rt->u.dst) && !skb_is_gso(skb) &&
 		     (ip_hdr(skb)->frag_off & htons(IP_DF))) && !skb->local_df) {
-		IP_INC_STATS(IPSTATS_MIB_FRAGFAILS);
+		IP_INC_STATS(dev_net(rt->u.dst.dev), IPSTATS_MIB_FRAGFAILS);
 		icmp_send(skb, ICMP_DEST_UNREACH, ICMP_FRAG_NEEDED,
 			  htonl(dst_mtu(&rt->u.dst)));
 		goto drop;
@@ -122,7 +123,7 @@ sr_failed:
 
 too_many_hops:
 	/* Tell the sender its packet died... */
-	IP_INC_STATS_BH(IPSTATS_MIB_INHDRERRORS);
+	IP_INC_STATS_BH(dev_net(skb->dst->dev), IPSTATS_MIB_INHDRERRORS);
 	icmp_send(skb, ICMP_TIME_EXCEEDED, ICMP_EXC_TTL, 0);
 drop:
 	kfree_skb(skb);
diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c
index 37221f65915..38d38f05801 100644
--- a/net/ipv4/ip_fragment.c
+++ b/net/ipv4/ip_fragment.c
@@ -5,8 +5,6 @@
  *
  *		The IP fragmentation functionality.
  *
- * Version:	$Id: ip_fragment.c,v 1.59 2002/01/12 07:54:56 davem Exp $
- *
  * Authors:	Fred N. van Kempen <waltje@uWalt.NL.Mugnet.ORG>
  *		Alan Cox <Alan.Cox@linux.org>
  *
@@ -180,7 +178,7 @@ static void ip_evictor(struct net *net)
 
 	evicted = inet_frag_evictor(&net->ipv4.frags, &ip4_frags);
 	if (evicted)
-		IP_ADD_STATS_BH(IPSTATS_MIB_REASMFAILS, evicted);
+		IP_ADD_STATS_BH(net, IPSTATS_MIB_REASMFAILS, evicted);
 }
 
 /*
@@ -189,8 +187,10 @@ static void ip_evictor(struct net *net)
 static void ip_expire(unsigned long arg)
 {
 	struct ipq *qp;
+	struct net *net;
 
 	qp = container_of((struct inet_frag_queue *) arg, struct ipq, q);
+	net = container_of(qp->q.net, struct net, ipv4.frags);
 
 	spin_lock(&qp->q.lock);
 
@@ -199,14 +199,12 @@ static void ip_expire(unsigned long arg)
 
 	ipq_kill(qp);
 
-	IP_INC_STATS_BH(IPSTATS_MIB_REASMTIMEOUT);
-	IP_INC_STATS_BH(IPSTATS_MIB_REASMFAILS);
+	IP_INC_STATS_BH(net, IPSTATS_MIB_REASMTIMEOUT);
+	IP_INC_STATS_BH(net, IPSTATS_MIB_REASMFAILS);
 
 	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(net, qp->iif)) != NULL) {
 			icmp_send(head, ICMP_TIME_EXCEEDED, ICMP_EXC_FRAGTIME, 0);
@@ -263,7 +261,10 @@ static inline int ip_frag_too_far(struct ipq *qp)
 	rc = qp->q.fragments && (end - start) > max;
 
 	if (rc) {
-		IP_INC_STATS_BH(IPSTATS_MIB_REASMFAILS);
+		struct net *net;
+
+		net = container_of(qp->q.net, struct net, ipv4.frags);
+		IP_INC_STATS_BH(net, IPSTATS_MIB_REASMFAILS);
 	}
 
 	return rc;
@@ -547,7 +548,7 @@ static int ip_frag_reasm(struct ipq *qp, struct sk_buff *prev,
 	iph = ip_hdr(head);
 	iph->frag_off = 0;
 	iph->tot_len = htons(len);
-	IP_INC_STATS_BH(IPSTATS_MIB_REASMOKS);
+	IP_INC_STATS_BH(dev_net(dev), IPSTATS_MIB_REASMOKS);
 	qp->q.fragments = NULL;
 	return 0;
 
@@ -562,7 +563,7 @@ out_oversize:
 			"Oversized IP packet from " NIPQUAD_FMT ".\n",
 			NIPQUAD(qp->saddr));
 out_fail:
-	IP_INC_STATS_BH(IPSTATS_MIB_REASMFAILS);
+	IP_INC_STATS_BH(dev_net(dev), IPSTATS_MIB_REASMFAILS);
 	return err;
 }
 
@@ -572,9 +573,9 @@ int ip_defrag(struct sk_buff *skb, u32 user)
 	struct ipq *qp;
 	struct net *net;
 
-	IP_INC_STATS_BH(IPSTATS_MIB_REASMREQDS);
-
 	net = skb->dev ? dev_net(skb->dev) : dev_net(skb->dst->dev);
+	IP_INC_STATS_BH(net, IPSTATS_MIB_REASMREQDS);
+
 	/* Start by cleaning up the memory. */
 	if (atomic_read(&net->ipv4.frags.mem) > net->ipv4.frags.high_thresh)
 		ip_evictor(net);
@@ -592,7 +593,7 @@ int ip_defrag(struct sk_buff *skb, u32 user)
 		return ret;
 	}
 
-	IP_INC_STATS_BH(IPSTATS_MIB_REASMFAILS);
+	IP_INC_STATS_BH(net, IPSTATS_MIB_REASMFAILS);
 	kfree_skb(skb);
 	return -ENOMEM;
 }
@@ -600,7 +601,7 @@ int ip_defrag(struct sk_buff *skb, u32 user)
 #ifdef CONFIG_SYSCTL
 static int zero;
 
-static struct ctl_table ip4_frags_ctl_table[] = {
+static struct ctl_table ip4_frags_ns_ctl_table[] = {
 	{
 		.ctl_name	= NET_IPV4_IPFRAG_HIGH_THRESH,
 		.procname	= "ipfrag_high_thresh",
@@ -626,6 +627,10 @@ static struct ctl_table ip4_frags_ctl_table[] = {
 		.proc_handler	= &proc_dointvec_jiffies,
 		.strategy	= &sysctl_jiffies
 	},
+	{ }
+};
+
+static struct ctl_table ip4_frags_ctl_table[] = {
 	{
 		.ctl_name	= NET_IPV4_IPFRAG_SECRET_INTERVAL,
 		.procname	= "ipfrag_secret_interval",
@@ -646,22 +651,20 @@ static struct ctl_table ip4_frags_ctl_table[] = {
 	{ }
 };
 
-static int ip4_frags_ctl_register(struct net *net)
+static int ip4_frags_ns_ctl_register(struct net *net)
 {
 	struct ctl_table *table;
 	struct ctl_table_header *hdr;
 
-	table = ip4_frags_ctl_table;
+	table = ip4_frags_ns_ctl_table;
 	if (net != &init_net) {
-		table = kmemdup(table, sizeof(ip4_frags_ctl_table), GFP_KERNEL);
+		table = kmemdup(table, sizeof(ip4_frags_ns_ctl_table), GFP_KERNEL);
 		if (table == NULL)
 			goto err_alloc;
 
 		table[0].data = &net->ipv4.frags.high_thresh;
 		table[1].data = &net->ipv4.frags.low_thresh;
 		table[2].data = &net->ipv4.frags.timeout;
-		table[3].mode &= ~0222;
-		table[4].mode &= ~0222;
 	}
 
 	hdr = register_net_sysctl_table(net, net_ipv4_ctl_path, table);
@@ -678,7 +681,7 @@ err_alloc:
 	return -ENOMEM;
 }
 
-static void ip4_frags_ctl_unregister(struct net *net)
+static void ip4_frags_ns_ctl_unregister(struct net *net)
 {
 	struct ctl_table *table;
 
@@ -686,13 +689,22 @@ static void ip4_frags_ctl_unregister(struct net *net)
 	unregister_net_sysctl_table(net->ipv4.frags_hdr);
 	kfree(table);
 }
+
+static void ip4_frags_ctl_register(void)
+{
+	register_net_sysctl_rotable(net_ipv4_ctl_path, ip4_frags_ctl_table);
+}
 #else
-static inline int ip4_frags_ctl_register(struct net *net)
+static inline int ip4_frags_ns_ctl_register(struct net *net)
 {
 	return 0;
 }
 
-static inline void ip4_frags_ctl_unregister(struct net *net)
+static inline void ip4_frags_ns_ctl_unregister(struct net *net)
+{
+}
+
+static inline void ip4_frags_ctl_register(void)
 {
 }
 #endif
@@ -716,12 +728,12 @@ static int ipv4_frags_init_net(struct net *net)
 
 	inet_frags_init_net(&net->ipv4.frags);
 
-	return ip4_frags_ctl_register(net);
+	return ip4_frags_ns_ctl_register(net);
 }
 
 static void ipv4_frags_exit_net(struct net *net)
 {
-	ip4_frags_ctl_unregister(net);
+	ip4_frags_ns_ctl_unregister(net);
 	inet_frags_exit_net(&net->ipv4.frags, &ip4_frags);
 }
 
@@ -732,6 +744,7 @@ static struct pernet_operations ip4_frags_ops = {
 
 void __init ipfrag_init(void)
 {
+	ip4_frags_ctl_register();
 	register_pernet_subsys(&ip4_frags_ops);
 	ip4_frags.hashfn = ip4_hashfn;
 	ip4_frags.constructor = ip4_frag_init;
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index 4342cba4ff8..2a61158ea72 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -473,6 +473,8 @@ static int ipgre_rcv(struct sk_buff *skb)
 	read_lock(&ipgre_lock);
 	if ((tunnel = ipgre_tunnel_lookup(dev_net(skb->dev),
 					iph->saddr, iph->daddr, key)) != NULL) {
+		struct net_device_stats *stats = &tunnel->dev->stats;
+
 		secpath_reset(skb);
 
 		skb->protocol = *(__be16*)(h + 2);
@@ -497,28 +499,28 @@ static int ipgre_rcv(struct sk_buff *skb)
 			/* Looped back packet, drop it! */
 			if (skb->rtable->fl.iif == 0)
 				goto drop;
-			tunnel->stat.multicast++;
+			stats->multicast++;
 			skb->pkt_type = PACKET_BROADCAST;
 		}
 #endif
 
 		if (((flags&GRE_CSUM) && csum) ||
 		    (!(flags&GRE_CSUM) && tunnel->parms.i_flags&GRE_CSUM)) {
-			tunnel->stat.rx_crc_errors++;
-			tunnel->stat.rx_errors++;
+			stats->rx_crc_errors++;
+			stats->rx_errors++;
 			goto drop;
 		}
 		if (tunnel->parms.i_flags&GRE_SEQ) {
 			if (!(flags&GRE_SEQ) ||
 			    (tunnel->i_seqno && (s32)(seqno - tunnel->i_seqno) < 0)) {
-				tunnel->stat.rx_fifo_errors++;
-				tunnel->stat.rx_errors++;
+				stats->rx_fifo_errors++;
+				stats->rx_errors++;
 				goto drop;
 			}
 			tunnel->i_seqno = seqno + 1;
 		}
-		tunnel->stat.rx_packets++;
-		tunnel->stat.rx_bytes += skb->len;
+		stats->rx_packets++;
+		stats->rx_bytes += skb->len;
 		skb->dev = tunnel->dev;
 		dst_release(skb->dst);
 		skb->dst = NULL;
@@ -540,7 +542,7 @@ drop_nolock:
 static int ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct ip_tunnel *tunnel = netdev_priv(dev);
-	struct net_device_stats *stats = &tunnel->stat;
+	struct net_device_stats *stats = &tunnel->dev->stats;
 	struct iphdr  *old_iph = ip_hdr(skb);
 	struct iphdr  *tiph;
 	u8     tos;
@@ -554,7 +556,7 @@ static int ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 	int    mtu;
 
 	if (tunnel->recursion++) {
-		tunnel->stat.collisions++;
+		stats->collisions++;
 		goto tx_error;
 	}
 
@@ -570,7 +572,7 @@ static int ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 		/* NBMA tunnel */
 
 		if (skb->dst == NULL) {
-			tunnel->stat.tx_fifo_errors++;
+			stats->tx_fifo_errors++;
 			goto tx_error;
 		}
 
@@ -621,7 +623,7 @@ static int ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 						.tos = RT_TOS(tos) } },
 				    .proto = IPPROTO_GRE };
 		if (ip_route_output_key(dev_net(dev), &rt, &fl)) {
-			tunnel->stat.tx_carrier_errors++;
+			stats->tx_carrier_errors++;
 			goto tx_error;
 		}
 	}
@@ -629,7 +631,7 @@ static int ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 
 	if (tdev == dev) {
 		ip_rt_put(rt);
-		tunnel->stat.collisions++;
+		stats->collisions++;
 		goto tx_error;
 	}
 
@@ -954,11 +956,6 @@ done:
 	return err;
 }
 
-static struct net_device_stats *ipgre_tunnel_get_stats(struct net_device *dev)
-{
-	return &(((struct ip_tunnel*)netdev_priv(dev))->stat);
-}
-
 static int ipgre_tunnel_change_mtu(struct net_device *dev, int new_mtu)
 {
 	struct ip_tunnel *tunnel = netdev_priv(dev);
@@ -1084,7 +1081,6 @@ static void ipgre_tunnel_setup(struct net_device *dev)
 	dev->uninit		= ipgre_tunnel_uninit;
 	dev->destructor 	= free_netdev;
 	dev->hard_start_xmit	= ipgre_tunnel_xmit;
-	dev->get_stats		= ipgre_tunnel_get_stats;
 	dev->do_ioctl		= ipgre_tunnel_ioctl;
 	dev->change_mtu		= ipgre_tunnel_change_mtu;
 
diff --git a/net/ipv4/ip_input.c b/net/ipv4/ip_input.c
index ff77a4a7f9e..e0bed56c51f 100644
--- a/net/ipv4/ip_input.c
+++ b/net/ipv4/ip_input.c
@@ -5,8 +5,6 @@
  *
  *		The Internet Protocol (IP) module.
  *
- * Version:	$Id: ip_input.c,v 1.55 2002/01/12 07:39:45 davem Exp $
- *
  * Authors:	Ross Biro
  *		Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
  *		Donald Becker, <becker@super.org>
@@ -147,12 +145,6 @@
 #include <linux/netlink.h>
 
 /*
- *	SNMP management statistics
- */
-
-DEFINE_SNMP_STAT(struct ipstats_mib, ip_statistics) __read_mostly;
-
-/*
  *	Process Router Attention IP option
  */
 int ip_call_ra_chain(struct sk_buff *skb)
@@ -232,16 +224,16 @@ static int ip_local_deliver_finish(struct sk_buff *skb)
 				protocol = -ret;
 				goto resubmit;
 			}
-			IP_INC_STATS_BH(IPSTATS_MIB_INDELIVERS);
+			IP_INC_STATS_BH(net, IPSTATS_MIB_INDELIVERS);
 		} else {
 			if (!raw) {
 				if (xfrm4_policy_check(NULL, XFRM_POLICY_IN, skb)) {
-					IP_INC_STATS_BH(IPSTATS_MIB_INUNKNOWNPROTOS);
+					IP_INC_STATS_BH(net, IPSTATS_MIB_INUNKNOWNPROTOS);
 					icmp_send(skb, ICMP_DEST_UNREACH,
 						  ICMP_PROT_UNREACH, 0);
 				}
 			} else
-				IP_INC_STATS_BH(IPSTATS_MIB_INDELIVERS);
+				IP_INC_STATS_BH(net, IPSTATS_MIB_INDELIVERS);
 			kfree_skb(skb);
 		}
 	}
@@ -283,7 +275,7 @@ static inline int ip_rcv_options(struct sk_buff *skb)
 					      --ANK (980813)
 	*/
 	if (skb_cow(skb, skb_headroom(skb))) {
-		IP_INC_STATS_BH(IPSTATS_MIB_INDISCARDS);
+		IP_INC_STATS_BH(dev_net(dev), IPSTATS_MIB_INDISCARDS);
 		goto drop;
 	}
 
@@ -292,7 +284,7 @@ static inline int ip_rcv_options(struct sk_buff *skb)
 	opt->optlen = iph->ihl*4 - sizeof(struct iphdr);
 
 	if (ip_options_compile(dev_net(dev), opt, skb)) {
-		IP_INC_STATS_BH(IPSTATS_MIB_INHDRERRORS);
+		IP_INC_STATS_BH(dev_net(dev), IPSTATS_MIB_INHDRERRORS);
 		goto drop;
 	}
 
@@ -336,9 +328,11 @@ static int ip_rcv_finish(struct sk_buff *skb)
 					 skb->dev);
 		if (unlikely(err)) {
 			if (err == -EHOSTUNREACH)
-				IP_INC_STATS_BH(IPSTATS_MIB_INADDRERRORS);
+				IP_INC_STATS_BH(dev_net(skb->dev),
+						IPSTATS_MIB_INADDRERRORS);
 			else if (err == -ENETUNREACH)
-				IP_INC_STATS_BH(IPSTATS_MIB_INNOROUTES);
+				IP_INC_STATS_BH(dev_net(skb->dev),
+						IPSTATS_MIB_INNOROUTES);
 			goto drop;
 		}
 	}
@@ -359,9 +353,9 @@ static int ip_rcv_finish(struct sk_buff *skb)
 
 	rt = skb->rtable;
 	if (rt->rt_type == RTN_MULTICAST)
-		IP_INC_STATS_BH(IPSTATS_MIB_INMCASTPKTS);
+		IP_INC_STATS_BH(dev_net(rt->u.dst.dev), IPSTATS_MIB_INMCASTPKTS);
 	else if (rt->rt_type == RTN_BROADCAST)
-		IP_INC_STATS_BH(IPSTATS_MIB_INBCASTPKTS);
+		IP_INC_STATS_BH(dev_net(rt->u.dst.dev), IPSTATS_MIB_INBCASTPKTS);
 
 	return dst_input(skb);
 
@@ -384,10 +378,10 @@ int ip_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt,
 	if (skb->pkt_type == PACKET_OTHERHOST)
 		goto drop;
 
-	IP_INC_STATS_BH(IPSTATS_MIB_INRECEIVES);
+	IP_INC_STATS_BH(dev_net(dev), IPSTATS_MIB_INRECEIVES);
 
 	if ((skb = skb_share_check(skb, GFP_ATOMIC)) == NULL) {
-		IP_INC_STATS_BH(IPSTATS_MIB_INDISCARDS);
+		IP_INC_STATS_BH(dev_net(dev), IPSTATS_MIB_INDISCARDS);
 		goto out;
 	}
 
@@ -420,7 +414,7 @@ int ip_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt,
 
 	len = ntohs(iph->tot_len);
 	if (skb->len < len) {
-		IP_INC_STATS_BH(IPSTATS_MIB_INTRUNCATEDPKTS);
+		IP_INC_STATS_BH(dev_net(dev), IPSTATS_MIB_INTRUNCATEDPKTS);
 		goto drop;
 	} else if (len < (iph->ihl*4))
 		goto inhdr_error;
@@ -430,7 +424,7 @@ int ip_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt,
 	 * Note this now means skb->len holds ntohs(iph->tot_len).
 	 */
 	if (pskb_trim_rcsum(skb, len)) {
-		IP_INC_STATS_BH(IPSTATS_MIB_INDISCARDS);
+		IP_INC_STATS_BH(dev_net(dev), IPSTATS_MIB_INDISCARDS);
 		goto drop;
 	}
 
@@ -441,11 +435,9 @@ int ip_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt,
 		       ip_rcv_finish);
 
 inhdr_error:
-	IP_INC_STATS_BH(IPSTATS_MIB_INHDRERRORS);
+	IP_INC_STATS_BH(dev_net(dev), IPSTATS_MIB_INHDRERRORS);
 drop:
 	kfree_skb(skb);
 out:
 	return NET_RX_DROP;
 }
-
-EXPORT_SYMBOL(ip_statistics);
diff --git a/net/ipv4/ip_options.c b/net/ipv4/ip_options.c
index 33126ad2cfd..be3f18a7a40 100644
--- a/net/ipv4/ip_options.c
+++ b/net/ipv4/ip_options.c
@@ -5,8 +5,6 @@
  *
  *		The options processing module for ip.c
  *
- * Version:	$Id: ip_options.c,v 1.21 2001/09/01 00:31:50 davem Exp $
- *
  * Authors:	A.N.Kuznetsov
  *
  */
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index e527628f56c..465544f6281 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -5,8 +5,6 @@
  *
  *		The Internet Protocol (IP) output module.
  *
- * Version:	$Id: ip_output.c,v 1.100 2002/02/01 22:01:03 davem Exp $
- *
  * Authors:	Ross Biro
  *		Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
  *		Donald Becker, <becker@super.org>
@@ -184,9 +182,9 @@ static inline int ip_finish_output2(struct sk_buff *skb)
 	unsigned int hh_len = LL_RESERVED_SPACE(dev);
 
 	if (rt->rt_type == RTN_MULTICAST)
-		IP_INC_STATS(IPSTATS_MIB_OUTMCASTPKTS);
+		IP_INC_STATS(dev_net(dev), IPSTATS_MIB_OUTMCASTPKTS);
 	else if (rt->rt_type == RTN_BROADCAST)
-		IP_INC_STATS(IPSTATS_MIB_OUTBCASTPKTS);
+		IP_INC_STATS(dev_net(dev), IPSTATS_MIB_OUTBCASTPKTS);
 
 	/* Be paranoid, rather than too clever. */
 	if (unlikely(skb_headroom(skb) < hh_len && dev->header_ops)) {
@@ -246,7 +244,7 @@ int ip_mc_output(struct sk_buff *skb)
 	/*
 	 *	If the indicated interface is up and running, send the packet.
 	 */
-	IP_INC_STATS(IPSTATS_MIB_OUTREQUESTS);
+	IP_INC_STATS(dev_net(dev), IPSTATS_MIB_OUTREQUESTS);
 
 	skb->dev = dev;
 	skb->protocol = htons(ETH_P_IP);
@@ -300,7 +298,7 @@ int ip_output(struct sk_buff *skb)
 {
 	struct net_device *dev = skb->dst->dev;
 
-	IP_INC_STATS(IPSTATS_MIB_OUTREQUESTS);
+	IP_INC_STATS(dev_net(dev), IPSTATS_MIB_OUTREQUESTS);
 
 	skb->dev = dev;
 	skb->protocol = htons(ETH_P_IP);
@@ -391,7 +389,7 @@ packet_routed:
 	return ip_local_out(skb);
 
 no_route:
-	IP_INC_STATS(IPSTATS_MIB_OUTNOROUTES);
+	IP_INC_STATS(sock_net(sk), IPSTATS_MIB_OUTNOROUTES);
 	kfree_skb(skb);
 	return -EHOSTUNREACH;
 }
@@ -453,7 +451,7 @@ int ip_fragment(struct sk_buff *skb, int (*output)(struct sk_buff*))
 	iph = ip_hdr(skb);
 
 	if (unlikely((iph->frag_off & htons(IP_DF)) && !skb->local_df)) {
-		IP_INC_STATS(IPSTATS_MIB_FRAGFAILS);
+		IP_INC_STATS(dev_net(dev), IPSTATS_MIB_FRAGFAILS);
 		icmp_send(skb, ICMP_DEST_UNREACH, ICMP_FRAG_NEEDED,
 			  htonl(ip_skb_dst_mtu(skb)));
 		kfree_skb(skb);
@@ -544,7 +542,7 @@ int ip_fragment(struct sk_buff *skb, int (*output)(struct sk_buff*))
 			err = output(skb);
 
 			if (!err)
-				IP_INC_STATS(IPSTATS_MIB_FRAGCREATES);
+				IP_INC_STATS(dev_net(dev), IPSTATS_MIB_FRAGCREATES);
 			if (err || !frag)
 				break;
 
@@ -554,7 +552,7 @@ int ip_fragment(struct sk_buff *skb, int (*output)(struct sk_buff*))
 		}
 
 		if (err == 0) {
-			IP_INC_STATS(IPSTATS_MIB_FRAGOKS);
+			IP_INC_STATS(dev_net(dev), IPSTATS_MIB_FRAGOKS);
 			return 0;
 		}
 
@@ -563,7 +561,7 @@ int ip_fragment(struct sk_buff *skb, int (*output)(struct sk_buff*))
 			kfree_skb(frag);
 			frag = skb;
 		}
-		IP_INC_STATS(IPSTATS_MIB_FRAGFAILS);
+		IP_INC_STATS(dev_net(dev), IPSTATS_MIB_FRAGFAILS);
 		return err;
 	}
 
@@ -675,15 +673,15 @@ slow_path:
 		if (err)
 			goto fail;
 
-		IP_INC_STATS(IPSTATS_MIB_FRAGCREATES);
+		IP_INC_STATS(dev_net(dev), IPSTATS_MIB_FRAGCREATES);
 	}
 	kfree_skb(skb);
-	IP_INC_STATS(IPSTATS_MIB_FRAGOKS);
+	IP_INC_STATS(dev_net(dev), IPSTATS_MIB_FRAGOKS);
 	return err;
 
 fail:
 	kfree_skb(skb);
-	IP_INC_STATS(IPSTATS_MIB_FRAGFAILS);
+	IP_INC_STATS(dev_net(dev), IPSTATS_MIB_FRAGFAILS);
 	return err;
 }
 
@@ -1049,7 +1047,7 @@ alloc_new_skb:
 
 error:
 	inet->cork.length -= length;
-	IP_INC_STATS(IPSTATS_MIB_OUTDISCARDS);
+	IP_INC_STATS(sock_net(sk), IPSTATS_MIB_OUTDISCARDS);
 	return err;
 }
 
@@ -1191,7 +1189,7 @@ ssize_t	ip_append_page(struct sock *sk, struct page *page,
 
 error:
 	inet->cork.length -= size;
-	IP_INC_STATS(IPSTATS_MIB_OUTDISCARDS);
+	IP_INC_STATS(sock_net(sk), IPSTATS_MIB_OUTDISCARDS);
 	return err;
 }
 
@@ -1213,6 +1211,7 @@ int ip_push_pending_frames(struct sock *sk)
 	struct sk_buff *skb, *tmp_skb;
 	struct sk_buff **tail_skb;
 	struct inet_sock *inet = inet_sk(sk);
+	struct net *net = sock_net(sk);
 	struct ip_options *opt = NULL;
 	struct rtable *rt = (struct rtable *)inet->cork.dst;
 	struct iphdr *iph;
@@ -1282,7 +1281,7 @@ int ip_push_pending_frames(struct sock *sk)
 	skb->dst = dst_clone(&rt->u.dst);
 
 	if (iph->protocol == IPPROTO_ICMP)
-		icmp_out_count(((struct icmphdr *)
+		icmp_out_count(net, ((struct icmphdr *)
 			skb_transport_header(skb))->type);
 
 	/* Netfilter gets whole the not fragmented skb. */
@@ -1299,7 +1298,7 @@ out:
 	return err;
 
 error:
-	IP_INC_STATS(IPSTATS_MIB_OUTDISCARDS);
+	IP_INC_STATS(net, IPSTATS_MIB_OUTDISCARDS);
 	goto out;
 }
 
diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c
index e0514e82308..105d92a039b 100644
--- a/net/ipv4/ip_sockglue.c
+++ b/net/ipv4/ip_sockglue.c
@@ -5,8 +5,6 @@
  *
  *		The IP to API glue.
  *
- * Version:	$Id: ip_sockglue.c,v 1.62 2002/02/01 22:01:04 davem Exp $
- *
  * Authors:	see ip.c
  *
  * Fixes:
diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c
index ed45037ce9b..42065fff46c 100644
--- a/net/ipv4/ipconfig.c
+++ b/net/ipv4/ipconfig.c
@@ -1,6 +1,4 @@
 /*
- *  $Id: ipconfig.c,v 1.46 2002/02/01 22:01:04 davem Exp $
- *
  *  Automatic Configuration of IP -- use DHCP, BOOTP, RARP, or
  *  user-supplied information to configure own IP address and routes.
  *
@@ -434,7 +432,7 @@ 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_net(dev) != &init_net)
+	if (!net_eq(dev_net(dev), &init_net))
 		goto drop;
 
 	if ((skb = skb_share_check(skb, GFP_ATOMIC)) == NULL)
@@ -854,7 +852,7 @@ 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_net(dev) != &init_net)
+	if (!net_eq(dev_net(dev), &init_net))
 		goto drop;
 
 	/* Perform verifications before taking the lock.  */
diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c
index af5cb53da5c..4c6d2caf920 100644
--- a/net/ipv4/ipip.c
+++ b/net/ipv4/ipip.c
@@ -1,8 +1,6 @@
 /*
  *	Linux NET3:	IP/IP protocol decoder.
  *
- *	Version: $Id: ipip.c,v 1.50 2001/10/02 02:22:36 davem Exp $
- *
  *	Authors:
  *		Sam Lantinga (slouken@cs.ucdavis.edu)  02/01/95
  *
@@ -368,8 +366,8 @@ static int ipip_rcv(struct sk_buff *skb)
 		skb->protocol = htons(ETH_P_IP);
 		skb->pkt_type = PACKET_HOST;
 
-		tunnel->stat.rx_packets++;
-		tunnel->stat.rx_bytes += skb->len;
+		tunnel->dev->stats.rx_packets++;
+		tunnel->dev->stats.rx_bytes += skb->len;
 		skb->dev = tunnel->dev;
 		dst_release(skb->dst);
 		skb->dst = NULL;
@@ -392,7 +390,7 @@ static int ipip_rcv(struct sk_buff *skb)
 static int ipip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct ip_tunnel *tunnel = netdev_priv(dev);
-	struct net_device_stats *stats = &tunnel->stat;
+	struct net_device_stats *stats = &tunnel->dev->stats;
 	struct iphdr  *tiph = &tunnel->parms.iph;
 	u8     tos = tunnel->parms.iph.tos;
 	__be16 df = tiph->frag_off;
@@ -405,7 +403,7 @@ static int ipip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 	int    mtu;
 
 	if (tunnel->recursion++) {
-		tunnel->stat.collisions++;
+		stats->collisions++;
 		goto tx_error;
 	}
 
@@ -418,7 +416,7 @@ static int ipip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 	if (!dst) {
 		/* NBMA tunnel */
 		if ((rt = skb->rtable) == NULL) {
-			tunnel->stat.tx_fifo_errors++;
+			stats->tx_fifo_errors++;
 			goto tx_error;
 		}
 		if ((dst = rt->rt_gateway) == 0)
@@ -433,7 +431,7 @@ static int ipip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 						.tos = RT_TOS(tos) } },
 				    .proto = IPPROTO_IPIP };
 		if (ip_route_output_key(dev_net(dev), &rt, &fl)) {
-			tunnel->stat.tx_carrier_errors++;
+			stats->tx_carrier_errors++;
 			goto tx_error_icmp;
 		}
 	}
@@ -441,7 +439,7 @@ static int ipip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 
 	if (tdev == dev) {
 		ip_rt_put(rt);
-		tunnel->stat.collisions++;
+		stats->collisions++;
 		goto tx_error;
 	}
 
@@ -451,7 +449,7 @@ static int ipip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 		mtu = skb->dst ? dst_mtu(skb->dst) : dev->mtu;
 
 	if (mtu < 68) {
-		tunnel->stat.collisions++;
+		stats->collisions++;
 		ip_rt_put(rt);
 		goto tx_error;
 	}
@@ -685,11 +683,6 @@ done:
 	return err;
 }
 
-static struct net_device_stats *ipip_tunnel_get_stats(struct net_device *dev)
-{
-	return &(((struct ip_tunnel*)netdev_priv(dev))->stat);
-}
-
 static int ipip_tunnel_change_mtu(struct net_device *dev, int new_mtu)
 {
 	if (new_mtu < 68 || new_mtu > 0xFFF8 - sizeof(struct iphdr))
@@ -702,7 +695,6 @@ static void ipip_tunnel_setup(struct net_device *dev)
 {
 	dev->uninit		= ipip_tunnel_uninit;
 	dev->hard_start_xmit	= ipip_tunnel_xmit;
-	dev->get_stats		= ipip_tunnel_get_stats;
 	dev->do_ioctl		= ipip_tunnel_ioctl;
 	dev->change_mtu		= ipip_tunnel_change_mtu;
 	dev->destructor		= free_netdev;
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index 11700a4dcd9..c519b8d30ee 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -9,8 +9,6 @@
  *	as published by the Free Software Foundation; either version
  *	2 of the License, or (at your option) any later version.
  *
- *	Version: $Id: ipmr.c,v 1.65 2001/10/31 21:55:54 davem Exp $
- *
  *	Fixes:
  *	Michael Chastain	:	Incorrect size of copying.
  *	Alan Cox		:	Added the cache manager code
@@ -120,6 +118,31 @@ static struct timer_list ipmr_expire_timer;
 
 /* Service routines creating virtual interfaces: DVMRP tunnels and PIMREG */
 
+static void ipmr_del_tunnel(struct net_device *dev, struct vifctl *v)
+{
+	dev_close(dev);
+
+	dev = __dev_get_by_name(&init_net, "tunl0");
+	if (dev) {
+		struct ifreq ifr;
+		mm_segment_t	oldfs;
+		struct ip_tunnel_parm p;
+
+		memset(&p, 0, sizeof(p));
+		p.iph.daddr = v->vifc_rmt_addr.s_addr;
+		p.iph.saddr = v->vifc_lcl_addr.s_addr;
+		p.iph.version = 4;
+		p.iph.ihl = 5;
+		p.iph.protocol = IPPROTO_IPIP;
+		sprintf(p.name, "dvmrp%d", v->vifc_vifi);
+		ifr.ifr_ifru.ifru_data = (__force void __user *)&p;
+
+		oldfs = get_fs(); set_fs(KERNEL_DS);
+		dev->do_ioctl(dev, &ifr, SIOCDELTUNNEL);
+		set_fs(oldfs);
+	}
+}
+
 static
 struct net_device *ipmr_new_tunnel(struct vifctl *v)
 {
@@ -161,6 +184,7 @@ struct net_device *ipmr_new_tunnel(struct vifctl *v)
 
 			if (dev_open(dev))
 				goto failure;
+			dev_hold(dev);
 		}
 	}
 	return dev;
@@ -181,26 +205,20 @@ static int reg_vif_num = -1;
 static int reg_vif_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	read_lock(&mrt_lock);
-	((struct net_device_stats*)netdev_priv(dev))->tx_bytes += skb->len;
-	((struct net_device_stats*)netdev_priv(dev))->tx_packets++;
+	dev->stats.tx_bytes += skb->len;
+	dev->stats.tx_packets++;
 	ipmr_cache_report(skb, reg_vif_num, IGMPMSG_WHOLEPKT);
 	read_unlock(&mrt_lock);
 	kfree_skb(skb);
 	return 0;
 }
 
-static struct net_device_stats *reg_vif_get_stats(struct net_device *dev)
-{
-	return (struct net_device_stats*)netdev_priv(dev);
-}
-
 static void reg_vif_setup(struct net_device *dev)
 {
 	dev->type		= ARPHRD_PIMREG;
 	dev->mtu		= ETH_DATA_LEN - sizeof(struct iphdr) - 8;
 	dev->flags		= IFF_NOARP;
 	dev->hard_start_xmit	= reg_vif_xmit;
-	dev->get_stats		= reg_vif_get_stats;
 	dev->destructor		= free_netdev;
 }
 
@@ -209,8 +227,7 @@ static struct net_device *ipmr_reg_vif(void)
 	struct net_device *dev;
 	struct in_device *in_dev;
 
-	dev = alloc_netdev(sizeof(struct net_device_stats), "pimreg",
-			   reg_vif_setup);
+	dev = alloc_netdev(0, "pimreg", reg_vif_setup);
 
 	if (dev == NULL)
 		return NULL;
@@ -234,6 +251,8 @@ static struct net_device *ipmr_reg_vif(void)
 	if (dev_open(dev))
 		goto failure;
 
+	dev_hold(dev);
+
 	return dev;
 
 failure:
@@ -248,9 +267,10 @@ failure:
 
 /*
  *	Delete a VIF entry
+ *	@notify: Set to 1, if the caller is a notifier_call
  */
 
-static int vif_delete(int vifi)
+static int vif_delete(int vifi, int notify)
 {
 	struct vif_device *v;
 	struct net_device *dev;
@@ -293,7 +313,7 @@ static int vif_delete(int vifi)
 		ip_rt_multicast_event(in_dev);
 	}
 
-	if (v->flags&(VIFF_TUNNEL|VIFF_REGISTER))
+	if (v->flags&(VIFF_TUNNEL|VIFF_REGISTER) && !notify)
 		unregister_netdevice(dev);
 
 	dev_put(dev);
@@ -398,6 +418,7 @@ static int vif_add(struct vifctl *vifc, int mrtsock)
 	struct vif_device *v = &vif_table[vifi];
 	struct net_device *dev;
 	struct in_device *in_dev;
+	int err;
 
 	/* Is vif busy ? */
 	if (VIF_EXISTS(vifi))
@@ -415,18 +436,34 @@ static int vif_add(struct vifctl *vifc, int mrtsock)
 		dev = ipmr_reg_vif();
 		if (!dev)
 			return -ENOBUFS;
+		err = dev_set_allmulti(dev, 1);
+		if (err) {
+			unregister_netdevice(dev);
+			dev_put(dev);
+			return err;
+		}
 		break;
 #endif
 	case VIFF_TUNNEL:
 		dev = ipmr_new_tunnel(vifc);
 		if (!dev)
 			return -ENOBUFS;
+		err = dev_set_allmulti(dev, 1);
+		if (err) {
+			ipmr_del_tunnel(dev, vifc);
+			dev_put(dev);
+			return err;
+		}
 		break;
 	case 0:
 		dev = ip_dev_find(&init_net, vifc->vifc_lcl_addr.s_addr);
 		if (!dev)
 			return -EADDRNOTAVAIL;
-		dev_put(dev);
+		err = dev_set_allmulti(dev, 1);
+		if (err) {
+			dev_put(dev);
+			return err;
+		}
 		break;
 	default:
 		return -EINVAL;
@@ -435,7 +472,6 @@ static int vif_add(struct vifctl *vifc, int mrtsock)
 	if ((in_dev = __in_dev_get_rtnl(dev)) == NULL)
 		return -EADDRNOTAVAIL;
 	IPV4_DEVCONF(in_dev->cnf, MC_FORWARDING)++;
-	dev_set_allmulti(dev, +1);
 	ip_rt_multicast_event(in_dev);
 
 	/*
@@ -458,7 +494,6 @@ static int vif_add(struct vifctl *vifc, int mrtsock)
 
 	/* And finish update writing critical data */
 	write_lock_bh(&mrt_lock);
-	dev_hold(dev);
 	v->dev=dev;
 #ifdef CONFIG_IP_PIMSM
 	if (v->flags&VIFF_REGISTER)
@@ -805,7 +840,7 @@ static void mroute_clean_tables(struct sock *sk)
 	 */
 	for (i=0; i<maxvif; i++) {
 		if (!(vif_table[i].flags&VIFF_STATIC))
-			vif_delete(i);
+			vif_delete(i, 0);
 	}
 
 	/*
@@ -918,7 +953,7 @@ int ip_mroute_setsockopt(struct sock *sk,int optname,char __user *optval,int opt
 		if (optname==MRT_ADD_VIF) {
 			ret = vif_add(&vif, sk==mroute_socket);
 		} else {
-			ret = vif_delete(vif.vifc_vifi);
+			ret = vif_delete(vif.vifc_vifi, 0);
 		}
 		rtnl_unlock();
 		return ret;
@@ -1089,7 +1124,7 @@ static int ipmr_device_event(struct notifier_block *this, unsigned long event, v
 	struct vif_device *v;
 	int ct;
 
-	if (dev_net(dev) != &init_net)
+	if (!net_eq(dev_net(dev), &init_net))
 		return NOTIFY_DONE;
 
 	if (event != NETDEV_UNREGISTER)
@@ -1097,7 +1132,7 @@ static int ipmr_device_event(struct notifier_block *this, unsigned long event, v
 	v=&vif_table[0];
 	for (ct=0;ct<maxvif;ct++,v++) {
 		if (v->dev==dev)
-			vif_delete(ct);
+			vif_delete(ct, 1);
 	}
 	return NOTIFY_DONE;
 }
@@ -1143,7 +1178,7 @@ static inline int ipmr_forward_finish(struct sk_buff *skb)
 {
 	struct ip_options * opt	= &(IPCB(skb)->opt);
 
-	IP_INC_STATS_BH(IPSTATS_MIB_OUTFORWDATAGRAMS);
+	IP_INC_STATS_BH(dev_net(skb->dst->dev), IPSTATS_MIB_OUTFORWDATAGRAMS);
 
 	if (unlikely(opt->optlen))
 		ip_forward_options(skb);
@@ -1170,8 +1205,8 @@ static void ipmr_queue_xmit(struct sk_buff *skb, struct mfc_cache *c, int vifi)
 	if (vif->flags & VIFF_REGISTER) {
 		vif->pkt_out++;
 		vif->bytes_out+=skb->len;
-		((struct net_device_stats*)netdev_priv(vif->dev))->tx_bytes += skb->len;
-		((struct net_device_stats*)netdev_priv(vif->dev))->tx_packets++;
+		vif->dev->stats.tx_bytes += skb->len;
+		vif->dev->stats.tx_packets++;
 		ipmr_cache_report(skb, vifi, IGMPMSG_WHOLEPKT);
 		kfree_skb(skb);
 		return;
@@ -1206,7 +1241,7 @@ static void ipmr_queue_xmit(struct sk_buff *skb, struct mfc_cache *c, int vifi)
 		   to blackhole.
 		 */
 
-		IP_INC_STATS_BH(IPSTATS_MIB_FRAGFAILS);
+		IP_INC_STATS_BH(dev_net(dev), IPSTATS_MIB_FRAGFAILS);
 		ip_rt_put(rt);
 		goto out_free;
 	}
@@ -1230,8 +1265,8 @@ static void ipmr_queue_xmit(struct sk_buff *skb, struct mfc_cache *c, int vifi)
 	if (vif->flags & VIFF_TUNNEL) {
 		ip_encap(skb, vif->local, vif->remote);
 		/* FIXME: extra output firewall step used to be here. --RR */
-		((struct ip_tunnel *)netdev_priv(vif->dev))->stat.tx_packets++;
-		((struct ip_tunnel *)netdev_priv(vif->dev))->stat.tx_bytes+=skb->len;
+		vif->dev->stats.tx_packets++;
+		vif->dev->stats.tx_bytes += skb->len;
 	}
 
 	IPCB(skb)->flags |= IPSKB_FORWARDED;
@@ -1487,8 +1522,8 @@ int pim_rcv_v1(struct sk_buff * skb)
 	skb->pkt_type = PACKET_HOST;
 	dst_release(skb->dst);
 	skb->dst = NULL;
-	((struct net_device_stats*)netdev_priv(reg_dev))->rx_bytes += skb->len;
-	((struct net_device_stats*)netdev_priv(reg_dev))->rx_packets++;
+	reg_dev->stats.rx_bytes += skb->len;
+	reg_dev->stats.rx_packets++;
 	nf_reset(skb);
 	netif_rx(skb);
 	dev_put(reg_dev);
@@ -1542,8 +1577,8 @@ static int pim_rcv(struct sk_buff * skb)
 	skb->ip_summed = 0;
 	skb->pkt_type = PACKET_HOST;
 	dst_release(skb->dst);
-	((struct net_device_stats*)netdev_priv(reg_dev))->rx_bytes += skb->len;
-	((struct net_device_stats*)netdev_priv(reg_dev))->rx_packets++;
+	reg_dev->stats.rx_bytes += skb->len;
+	reg_dev->stats.rx_packets++;
 	skb->dst = NULL;
 	nf_reset(skb);
 	netif_rx(skb);
@@ -1887,16 +1922,36 @@ static struct net_protocol pim_protocol = {
  *	Setup for IP multicast routing
  */
 
-void __init ip_mr_init(void)
+int __init ip_mr_init(void)
 {
+	int err;
+
 	mrt_cachep = kmem_cache_create("ip_mrt_cache",
 				       sizeof(struct mfc_cache),
 				       0, SLAB_HWCACHE_ALIGN|SLAB_PANIC,
 				       NULL);
+	if (!mrt_cachep)
+		return -ENOMEM;
+
 	setup_timer(&ipmr_expire_timer, ipmr_expire_process, 0);
-	register_netdevice_notifier(&ip_mr_notifier);
+	err = register_netdevice_notifier(&ip_mr_notifier);
+	if (err)
+		goto reg_notif_fail;
 #ifdef CONFIG_PROC_FS
-	proc_net_fops_create(&init_net, "ip_mr_vif", 0, &ipmr_vif_fops);
-	proc_net_fops_create(&init_net, "ip_mr_cache", 0, &ipmr_mfc_fops);
+	err = -ENOMEM;
+	if (!proc_net_fops_create(&init_net, "ip_mr_vif", 0, &ipmr_vif_fops))
+		goto proc_vif_fail;
+	if (!proc_net_fops_create(&init_net, "ip_mr_cache", 0, &ipmr_mfc_fops))
+		goto proc_cache_fail;
 #endif
+	return 0;
+reg_notif_fail:
+	kmem_cache_destroy(mrt_cachep);
+#ifdef CONFIG_PROC_FS
+proc_vif_fail:
+	unregister_netdevice_notifier(&ip_mr_notifier);
+proc_cache_fail:
+	proc_net_remove(&init_net, "ip_mr_vif");
+#endif
+	return err;
 }
diff --git a/net/ipv4/ipvs/ip_vs_app.c b/net/ipv4/ipvs/ip_vs_app.c
index 535abe0c45e..1f1897a1a70 100644
--- a/net/ipv4/ipvs/ip_vs_app.c
+++ b/net/ipv4/ipvs/ip_vs_app.c
@@ -1,8 +1,6 @@
 /*
  * ip_vs_app.c: Application module support for IPVS
  *
- * Version:     $Id: ip_vs_app.c,v 1.17 2003/03/22 06:31:21 wensong Exp $
- *
  * Authors:     Wensong Zhang <wensong@linuxvirtualserver.org>
  *
  *              This program is free software; you can redistribute it and/or
diff --git a/net/ipv4/ipvs/ip_vs_conn.c b/net/ipv4/ipvs/ip_vs_conn.c
index 65f1ba11275..f8bdae47a77 100644
--- a/net/ipv4/ipvs/ip_vs_conn.c
+++ b/net/ipv4/ipvs/ip_vs_conn.c
@@ -5,8 +5,6 @@
  *              high-performance and highly available server based on a
  *              cluster of servers.
  *
- * Version:     $Id: ip_vs_conn.c,v 1.31 2003/04/18 09:03:16 wensong Exp $
- *
  * Authors:     Wensong Zhang <wensong@linuxvirtualserver.org>
  *              Peter Kese <peter.kese@ijs.si>
  *              Julian Anastasov <ja@ssi.bg>
diff --git a/net/ipv4/ipvs/ip_vs_core.c b/net/ipv4/ipvs/ip_vs_core.c
index 963981a9d50..a7879eafc3b 100644
--- a/net/ipv4/ipvs/ip_vs_core.c
+++ b/net/ipv4/ipvs/ip_vs_core.c
@@ -5,8 +5,6 @@
  *              high-performance and highly available server based on a
  *              cluster of servers.
  *
- * Version:     $Id: ip_vs_core.c,v 1.34 2003/05/10 03:05:23 wensong Exp $
- *
  * Authors:     Wensong Zhang <wensong@linuxvirtualserver.org>
  *              Peter Kese <peter.kese@ijs.si>
  *              Julian Anastasov <ja@ssi.bg>
@@ -993,7 +991,8 @@ ip_vs_in(unsigned int hooknum, struct sk_buff *skb,
 	       == sysctl_ip_vs_sync_threshold[0])) ||
 	     ((cp->protocol == IPPROTO_TCP) && (cp->old_state != cp->state) &&
 	      ((cp->state == IP_VS_TCP_S_FIN_WAIT) ||
-	       (cp->state == IP_VS_TCP_S_CLOSE)))))
+	       (cp->state == IP_VS_TCP_S_CLOSE_WAIT) ||
+	       (cp->state == IP_VS_TCP_S_TIME_WAIT)))))
 		ip_vs_sync_conn(cp);
 	cp->old_state = cp->state;
 
diff --git a/net/ipv4/ipvs/ip_vs_ctl.c b/net/ipv4/ipvs/ip_vs_ctl.c
index 94c5767c8e0..9a5ace0b4dd 100644
--- a/net/ipv4/ipvs/ip_vs_ctl.c
+++ b/net/ipv4/ipvs/ip_vs_ctl.c
@@ -5,8 +5,6 @@
  *              high-performance and highly available server based on a
  *              cluster of servers.
  *
- * Version:     $Id: ip_vs_ctl.c,v 1.36 2003/06/08 09:31:19 wensong Exp $
- *
  * Authors:     Wensong Zhang <wensong@linuxvirtualserver.org>
  *              Peter Kese <peter.kese@ijs.si>
  *              Julian Anastasov <ja@ssi.bg>
diff --git a/net/ipv4/ipvs/ip_vs_dh.c b/net/ipv4/ipvs/ip_vs_dh.c
index dcf5d46aaa5..8afc1503ed2 100644
--- a/net/ipv4/ipvs/ip_vs_dh.c
+++ b/net/ipv4/ipvs/ip_vs_dh.c
@@ -1,8 +1,6 @@
 /*
  * IPVS:        Destination Hashing scheduling module
  *
- * Version:     $Id: ip_vs_dh.c,v 1.5 2002/09/15 08:14:08 wensong Exp $
- *
  * Authors:     Wensong Zhang <wensong@gnuchina.org>
  *
  *              Inspired by the consistent hashing scheduler patch from
diff --git a/net/ipv4/ipvs/ip_vs_est.c b/net/ipv4/ipvs/ip_vs_est.c
index dfa0d713c80..bc04eedd6db 100644
--- a/net/ipv4/ipvs/ip_vs_est.c
+++ b/net/ipv4/ipvs/ip_vs_est.c
@@ -1,8 +1,6 @@
 /*
  * ip_vs_est.c: simple rate estimator for IPVS
  *
- * Version:     $Id: ip_vs_est.c,v 1.4 2002/11/30 01:50:35 wensong Exp $
- *
  * Authors:     Wensong Zhang <wensong@linuxvirtualserver.org>
  *
  *              This program is free software; you can redistribute it and/or
diff --git a/net/ipv4/ipvs/ip_vs_ftp.c b/net/ipv4/ipvs/ip_vs_ftp.c
index 59aa166b767..c1c758e4f73 100644
--- a/net/ipv4/ipvs/ip_vs_ftp.c
+++ b/net/ipv4/ipvs/ip_vs_ftp.c
@@ -1,8 +1,6 @@
 /*
  * ip_vs_ftp.c: IPVS ftp application module
  *
- * Version:	$Id: ip_vs_ftp.c,v 1.13 2002/09/15 08:14:08 wensong Exp $
- *
  * Authors:	Wensong Zhang <wensong@linuxvirtualserver.org>
  *
  * Changes:
diff --git a/net/ipv4/ipvs/ip_vs_lblc.c b/net/ipv4/ipvs/ip_vs_lblc.c
index 3888642706a..0efa3db4b18 100644
--- a/net/ipv4/ipvs/ip_vs_lblc.c
+++ b/net/ipv4/ipvs/ip_vs_lblc.c
@@ -1,8 +1,6 @@
 /*
  * IPVS:        Locality-Based Least-Connection scheduling module
  *
- * Version:     $Id: ip_vs_lblc.c,v 1.10 2002/09/15 08:14:08 wensong Exp $
- *
  * Authors:     Wensong Zhang <wensong@gnuchina.org>
  *
  *              This program is free software; you can redistribute it and/or
diff --git a/net/ipv4/ipvs/ip_vs_lblcr.c b/net/ipv4/ipvs/ip_vs_lblcr.c
index daa260eb21c..8e3bbeb4513 100644
--- a/net/ipv4/ipvs/ip_vs_lblcr.c
+++ b/net/ipv4/ipvs/ip_vs_lblcr.c
@@ -1,8 +1,6 @@
 /*
  * IPVS:        Locality-Based Least-Connection with Replication scheduler
  *
- * Version:     $Id: ip_vs_lblcr.c,v 1.11 2002/09/15 08:14:08 wensong Exp $
- *
  * Authors:     Wensong Zhang <wensong@gnuchina.org>
  *
  *              This program is free software; you can redistribute it and/or
diff --git a/net/ipv4/ipvs/ip_vs_lc.c b/net/ipv4/ipvs/ip_vs_lc.c
index d88fef90a64..ac9f08e065d 100644
--- a/net/ipv4/ipvs/ip_vs_lc.c
+++ b/net/ipv4/ipvs/ip_vs_lc.c
@@ -1,8 +1,6 @@
 /*
  * IPVS:        Least-Connection Scheduling module
  *
- * Version:     $Id: ip_vs_lc.c,v 1.10 2003/04/18 09:03:16 wensong Exp $
- *
  * Authors:     Wensong Zhang <wensong@linuxvirtualserver.org>
  *
  *              This program is free software; you can redistribute it and/or
diff --git a/net/ipv4/ipvs/ip_vs_nq.c b/net/ipv4/ipvs/ip_vs_nq.c
index bc2a9e5f2a7..a46bf258d42 100644
--- a/net/ipv4/ipvs/ip_vs_nq.c
+++ b/net/ipv4/ipvs/ip_vs_nq.c
@@ -1,8 +1,6 @@
 /*
  * IPVS:        Never Queue scheduling module
  *
- * Version:     $Id: ip_vs_nq.c,v 1.2 2003/06/08 09:31:19 wensong Exp $
- *
  * Authors:     Wensong Zhang <wensong@linuxvirtualserver.org>
  *
  *              This program is free software; you can redistribute it and/or
diff --git a/net/ipv4/ipvs/ip_vs_proto.c b/net/ipv4/ipvs/ip_vs_proto.c
index 4b1c16cbb16..876714f23d6 100644
--- a/net/ipv4/ipvs/ip_vs_proto.c
+++ b/net/ipv4/ipvs/ip_vs_proto.c
@@ -1,8 +1,6 @@
 /*
  * ip_vs_proto.c: transport protocol load balancing support for IPVS
  *
- * Version:     $Id: ip_vs_proto.c,v 1.2 2003/04/18 09:03:16 wensong Exp $
- *
  * Authors:     Wensong Zhang <wensong@linuxvirtualserver.org>
  *              Julian Anastasov <ja@ssi.bg>
  *
diff --git a/net/ipv4/ipvs/ip_vs_proto_ah.c b/net/ipv4/ipvs/ip_vs_proto_ah.c
index 4bf835e1d86..73e0ea87c1f 100644
--- a/net/ipv4/ipvs/ip_vs_proto_ah.c
+++ b/net/ipv4/ipvs/ip_vs_proto_ah.c
@@ -1,8 +1,6 @@
 /*
  * ip_vs_proto_ah.c:	AH IPSec load balancing support for IPVS
  *
- * Version:     $Id: ip_vs_proto_ah.c,v 1.1 2003/07/04 15:04:37 wensong Exp $
- *
  * Authors:	Julian Anastasov <ja@ssi.bg>, February 2002
  *		Wensong Zhang <wensong@linuxvirtualserver.org>
  *
diff --git a/net/ipv4/ipvs/ip_vs_proto_esp.c b/net/ipv4/ipvs/ip_vs_proto_esp.c
index db6a6b7b1a0..21d70c8ffa5 100644
--- a/net/ipv4/ipvs/ip_vs_proto_esp.c
+++ b/net/ipv4/ipvs/ip_vs_proto_esp.c
@@ -1,8 +1,6 @@
 /*
  * ip_vs_proto_esp.c:	ESP IPSec load balancing support for IPVS
  *
- * Version:     $Id: ip_vs_proto_esp.c,v 1.1 2003/07/04 15:04:37 wensong Exp $
- *
  * Authors:	Julian Anastasov <ja@ssi.bg>, February 2002
  *		Wensong Zhang <wensong@linuxvirtualserver.org>
  *
diff --git a/net/ipv4/ipvs/ip_vs_proto_tcp.c b/net/ipv4/ipvs/ip_vs_proto_tcp.c
index b83dc14b0a4..d0ea467986a 100644
--- a/net/ipv4/ipvs/ip_vs_proto_tcp.c
+++ b/net/ipv4/ipvs/ip_vs_proto_tcp.c
@@ -1,8 +1,6 @@
 /*
  * ip_vs_proto_tcp.c:	TCP load balancing support for IPVS
  *
- * Version:     $Id: ip_vs_proto_tcp.c,v 1.3 2002/11/30 01:50:35 wensong Exp $
- *
  * Authors:     Wensong Zhang <wensong@linuxvirtualserver.org>
  *              Julian Anastasov <ja@ssi.bg>
  *
diff --git a/net/ipv4/ipvs/ip_vs_proto_udp.c b/net/ipv4/ipvs/ip_vs_proto_udp.c
index 75771cb3cd6..c6be5d56823 100644
--- a/net/ipv4/ipvs/ip_vs_proto_udp.c
+++ b/net/ipv4/ipvs/ip_vs_proto_udp.c
@@ -1,8 +1,6 @@
 /*
  * ip_vs_proto_udp.c:	UDP load balancing support for IPVS
  *
- * Version:     $Id: ip_vs_proto_udp.c,v 1.3 2002/11/30 01:50:35 wensong Exp $
- *
  * Authors:     Wensong Zhang <wensong@linuxvirtualserver.org>
  *              Julian Anastasov <ja@ssi.bg>
  *
diff --git a/net/ipv4/ipvs/ip_vs_rr.c b/net/ipv4/ipvs/ip_vs_rr.c
index 433f8a94792..c8db12d39e6 100644
--- a/net/ipv4/ipvs/ip_vs_rr.c
+++ b/net/ipv4/ipvs/ip_vs_rr.c
@@ -1,8 +1,6 @@
 /*
  * IPVS:        Round-Robin Scheduling module
  *
- * Version:     $Id: ip_vs_rr.c,v 1.9 2002/09/15 08:14:08 wensong Exp $
- *
  * Authors:     Wensong Zhang <wensong@linuxvirtualserver.org>
  *              Peter Kese <peter.kese@ijs.si>
  *
diff --git a/net/ipv4/ipvs/ip_vs_sched.c b/net/ipv4/ipvs/ip_vs_sched.c
index 121a32b1b75..b6476730985 100644
--- a/net/ipv4/ipvs/ip_vs_sched.c
+++ b/net/ipv4/ipvs/ip_vs_sched.c
@@ -5,8 +5,6 @@
  *              high-performance and highly available server based on a
  *              cluster of servers.
  *
- * Version:     $Id: ip_vs_sched.c,v 1.13 2003/05/10 03:05:23 wensong Exp $
- *
  * Authors:     Wensong Zhang <wensong@linuxvirtualserver.org>
  *              Peter Kese <peter.kese@ijs.si>
  *
diff --git a/net/ipv4/ipvs/ip_vs_sed.c b/net/ipv4/ipvs/ip_vs_sed.c
index dd7c128f9db..2a7d3135818 100644
--- a/net/ipv4/ipvs/ip_vs_sed.c
+++ b/net/ipv4/ipvs/ip_vs_sed.c
@@ -1,8 +1,6 @@
 /*
  * IPVS:        Shortest Expected Delay scheduling module
  *
- * Version:     $Id: ip_vs_sed.c,v 1.1 2003/05/10 03:06:08 wensong Exp $
- *
  * Authors:     Wensong Zhang <wensong@linuxvirtualserver.org>
  *
  *              This program is free software; you can redistribute it and/or
diff --git a/net/ipv4/ipvs/ip_vs_sh.c b/net/ipv4/ipvs/ip_vs_sh.c
index 1b25b00ef1e..b8fdfac6500 100644
--- a/net/ipv4/ipvs/ip_vs_sh.c
+++ b/net/ipv4/ipvs/ip_vs_sh.c
@@ -1,8 +1,6 @@
 /*
  * IPVS:        Source Hashing scheduling module
  *
- * Version:     $Id: ip_vs_sh.c,v 1.5 2002/09/15 08:14:08 wensong Exp $
- *
  * Authors:     Wensong Zhang <wensong@gnuchina.org>
  *
  *              This program is free software; you can redistribute it and/or
diff --git a/net/ipv4/ipvs/ip_vs_sync.c b/net/ipv4/ipvs/ip_vs_sync.c
index eff54efe035..45e9bd96c28 100644
--- a/net/ipv4/ipvs/ip_vs_sync.c
+++ b/net/ipv4/ipvs/ip_vs_sync.c
@@ -5,8 +5,6 @@
  *              high-performance and highly available server based on a
  *              cluster of servers.
  *
- * Version:     $Id: ip_vs_sync.c,v 1.13 2003/06/08 09:31:19 wensong Exp $
- *
  * Authors:     Wensong Zhang <wensong@linuxvirtualserver.org>
  *
  * ip_vs_sync:  sync connection info from master load balancer to backups
@@ -29,10 +27,12 @@
 #include <linux/in.h>
 #include <linux/igmp.h>                 /* for ip_mc_join_group */
 #include <linux/udp.h>
+#include <linux/err.h>
+#include <linux/kthread.h>
+#include <linux/wait.h>
 
 #include <net/ip.h>
 #include <net/sock.h>
-#include <asm/uaccess.h>                /* for get_fs and set_fs */
 
 #include <net/ip_vs.h>
 
@@ -68,8 +68,8 @@ struct ip_vs_sync_conn_options {
 };
 
 struct ip_vs_sync_thread_data {
-	struct completion *startup;
-	int state;
+	struct socket *sock;
+	char *buf;
 };
 
 #define SIMPLE_CONN_SIZE  (sizeof(struct ip_vs_sync_conn))
@@ -140,18 +140,19 @@ volatile int ip_vs_backup_syncid = 0;
 char ip_vs_master_mcast_ifn[IP_VS_IFNAME_MAXLEN];
 char ip_vs_backup_mcast_ifn[IP_VS_IFNAME_MAXLEN];
 
+/* sync daemon tasks */
+static struct task_struct *sync_master_thread;
+static struct task_struct *sync_backup_thread;
+
 /* multicast addr */
-static struct sockaddr_in mcast_addr;
+static struct sockaddr_in mcast_addr = {
+	.sin_family		= AF_INET,
+	.sin_port		= __constant_htons(IP_VS_SYNC_PORT),
+	.sin_addr.s_addr	= __constant_htonl(IP_VS_SYNC_GROUP),
+};
 
 
-static inline void sb_queue_tail(struct ip_vs_sync_buff *sb)
-{
-	spin_lock(&ip_vs_sync_lock);
-	list_add_tail(&sb->list, &ip_vs_sync_queue);
-	spin_unlock(&ip_vs_sync_lock);
-}
-
-static inline struct ip_vs_sync_buff * sb_dequeue(void)
+static inline struct ip_vs_sync_buff *sb_dequeue(void)
 {
 	struct ip_vs_sync_buff *sb;
 
@@ -195,6 +196,16 @@ static inline void ip_vs_sync_buff_release(struct ip_vs_sync_buff *sb)
 	kfree(sb);
 }
 
+static inline void sb_queue_tail(struct ip_vs_sync_buff *sb)
+{
+	spin_lock(&ip_vs_sync_lock);
+	if (ip_vs_sync_state & IP_VS_STATE_MASTER)
+		list_add_tail(&sb->list, &ip_vs_sync_queue);
+	else
+		ip_vs_sync_buff_release(sb);
+	spin_unlock(&ip_vs_sync_lock);
+}
+
 /*
  *	Get the current sync buffer if it has been created for more
  *	than the specified time or the specified time is zero.
@@ -574,14 +585,17 @@ static int bind_mcastif_addr(struct socket *sock, char *ifname)
 static struct socket * make_send_sock(void)
 {
 	struct socket *sock;
+	int result;
 
 	/* First create a socket */
-	if (sock_create_kern(PF_INET, SOCK_DGRAM, IPPROTO_UDP, &sock) < 0) {
+	result = sock_create_kern(PF_INET, SOCK_DGRAM, IPPROTO_UDP, &sock);
+	if (result < 0) {
 		IP_VS_ERR("Error during creation of socket; terminating\n");
-		return NULL;
+		return ERR_PTR(result);
 	}
 
-	if (set_mcast_if(sock->sk, ip_vs_master_mcast_ifn) < 0) {
+	result = set_mcast_if(sock->sk, ip_vs_master_mcast_ifn);
+	if (result < 0) {
 		IP_VS_ERR("Error setting outbound mcast interface\n");
 		goto error;
 	}
@@ -589,14 +603,15 @@ static struct socket * make_send_sock(void)
 	set_mcast_loop(sock->sk, 0);
 	set_mcast_ttl(sock->sk, 1);
 
-	if (bind_mcastif_addr(sock, ip_vs_master_mcast_ifn) < 0) {
+	result = bind_mcastif_addr(sock, ip_vs_master_mcast_ifn);
+	if (result < 0) {
 		IP_VS_ERR("Error binding address of the mcast interface\n");
 		goto error;
 	}
 
-	if (sock->ops->connect(sock,
-			       (struct sockaddr*)&mcast_addr,
-			       sizeof(struct sockaddr), 0) < 0) {
+	result = sock->ops->connect(sock, (struct sockaddr *) &mcast_addr,
+			sizeof(struct sockaddr), 0);
+	if (result < 0) {
 		IP_VS_ERR("Error connecting to the multicast addr\n");
 		goto error;
 	}
@@ -605,7 +620,7 @@ static struct socket * make_send_sock(void)
 
   error:
 	sock_release(sock);
-	return NULL;
+	return ERR_PTR(result);
 }
 
 
@@ -615,27 +630,30 @@ static struct socket * make_send_sock(void)
 static struct socket * make_receive_sock(void)
 {
 	struct socket *sock;
+	int result;
 
 	/* First create a socket */
-	if (sock_create_kern(PF_INET, SOCK_DGRAM, IPPROTO_UDP, &sock) < 0) {
+	result = sock_create_kern(PF_INET, SOCK_DGRAM, IPPROTO_UDP, &sock);
+	if (result < 0) {
 		IP_VS_ERR("Error during creation of socket; terminating\n");
-		return NULL;
+		return ERR_PTR(result);
 	}
 
 	/* it is equivalent to the REUSEADDR option in user-space */
 	sock->sk->sk_reuse = 1;
 
-	if (sock->ops->bind(sock,
-			    (struct sockaddr*)&mcast_addr,
-			    sizeof(struct sockaddr)) < 0) {
+	result = sock->ops->bind(sock, (struct sockaddr *) &mcast_addr,
+			sizeof(struct sockaddr));
+	if (result < 0) {
 		IP_VS_ERR("Error binding to the multicast addr\n");
 		goto error;
 	}
 
 	/* join the multicast group */
-	if (join_mcast_group(sock->sk,
-			     (struct in_addr*)&mcast_addr.sin_addr,
-			     ip_vs_backup_mcast_ifn) < 0) {
+	result = join_mcast_group(sock->sk,
+			(struct in_addr *) &mcast_addr.sin_addr,
+			ip_vs_backup_mcast_ifn);
+	if (result < 0) {
 		IP_VS_ERR("Error joining to the multicast group\n");
 		goto error;
 	}
@@ -644,7 +662,7 @@ static struct socket * make_receive_sock(void)
 
   error:
 	sock_release(sock);
-	return NULL;
+	return ERR_PTR(result);
 }
 
 
@@ -702,44 +720,29 @@ ip_vs_receive(struct socket *sock, char *buffer, const size_t buflen)
 }
 
 
-static DECLARE_WAIT_QUEUE_HEAD(sync_wait);
-static pid_t sync_master_pid = 0;
-static pid_t sync_backup_pid = 0;
-
-static DECLARE_WAIT_QUEUE_HEAD(stop_sync_wait);
-static int stop_master_sync = 0;
-static int stop_backup_sync = 0;
-
-static void sync_master_loop(void)
+static int sync_thread_master(void *data)
 {
-	struct socket *sock;
+	struct ip_vs_sync_thread_data *tinfo = data;
 	struct ip_vs_sync_buff *sb;
 
-	/* create the sending multicast socket */
-	sock = make_send_sock();
-	if (!sock)
-		return;
-
 	IP_VS_INFO("sync thread started: state = MASTER, mcast_ifn = %s, "
 		   "syncid = %d\n",
 		   ip_vs_master_mcast_ifn, ip_vs_master_syncid);
 
-	for (;;) {
-		while ((sb=sb_dequeue())) {
-			ip_vs_send_sync_msg(sock, sb->mesg);
+	while (!kthread_should_stop()) {
+		while ((sb = sb_dequeue())) {
+			ip_vs_send_sync_msg(tinfo->sock, sb->mesg);
 			ip_vs_sync_buff_release(sb);
 		}
 
 		/* check if entries stay in curr_sb for 2 seconds */
-		if ((sb = get_curr_sync_buff(2*HZ))) {
-			ip_vs_send_sync_msg(sock, sb->mesg);
+		sb = get_curr_sync_buff(2 * HZ);
+		if (sb) {
+			ip_vs_send_sync_msg(tinfo->sock, sb->mesg);
 			ip_vs_sync_buff_release(sb);
 		}
 
-		if (stop_master_sync)
-			break;
-
-		msleep_interruptible(1000);
+		schedule_timeout_interruptible(HZ);
 	}
 
 	/* clean up the sync_buff queue */
@@ -753,267 +756,175 @@ static void sync_master_loop(void)
 	}
 
 	/* release the sending multicast socket */
-	sock_release(sock);
+	sock_release(tinfo->sock);
+	kfree(tinfo);
+
+	return 0;
 }
 
 
-static void sync_backup_loop(void)
+static int sync_thread_backup(void *data)
 {
-	struct socket *sock;
-	char *buf;
+	struct ip_vs_sync_thread_data *tinfo = data;
 	int len;
 
-	if (!(buf = kmalloc(sync_recv_mesg_maxlen, GFP_ATOMIC))) {
-		IP_VS_ERR("sync_backup_loop: kmalloc error\n");
-		return;
-	}
-
-	/* create the receiving multicast socket */
-	sock = make_receive_sock();
-	if (!sock)
-		goto out;
-
 	IP_VS_INFO("sync thread started: state = BACKUP, mcast_ifn = %s, "
 		   "syncid = %d\n",
 		   ip_vs_backup_mcast_ifn, ip_vs_backup_syncid);
 
-	for (;;) {
-		/* do you have data now? */
-		while (!skb_queue_empty(&(sock->sk->sk_receive_queue))) {
-			if ((len =
-			     ip_vs_receive(sock, buf,
-					   sync_recv_mesg_maxlen)) <= 0) {
+	while (!kthread_should_stop()) {
+		wait_event_interruptible(*tinfo->sock->sk->sk_sleep,
+			 !skb_queue_empty(&tinfo->sock->sk->sk_receive_queue)
+			 || kthread_should_stop());
+
+		/* do we have data now? */
+		while (!skb_queue_empty(&(tinfo->sock->sk->sk_receive_queue))) {
+			len = ip_vs_receive(tinfo->sock, tinfo->buf,
+					sync_recv_mesg_maxlen);
+			if (len <= 0) {
 				IP_VS_ERR("receiving message error\n");
 				break;
 			}
-			/* disable bottom half, because it accessed the data
+
+			/* disable bottom half, because it accesses the data
 			   shared by softirq while getting/creating conns */
 			local_bh_disable();
-			ip_vs_process_message(buf, len);
+			ip_vs_process_message(tinfo->buf, len);
 			local_bh_enable();
 		}
-
-		if (stop_backup_sync)
-			break;
-
-		msleep_interruptible(1000);
 	}
 
 	/* release the sending multicast socket */
-	sock_release(sock);
+	sock_release(tinfo->sock);
+	kfree(tinfo->buf);
+	kfree(tinfo);
 
-  out:
-	kfree(buf);
+	return 0;
 }
 
 
-static void set_sync_pid(int sync_state, pid_t sync_pid)
-{
-	if (sync_state == IP_VS_STATE_MASTER)
-		sync_master_pid = sync_pid;
-	else if (sync_state == IP_VS_STATE_BACKUP)
-		sync_backup_pid = sync_pid;
-}
-
-static void set_stop_sync(int sync_state, int set)
+int start_sync_thread(int state, char *mcast_ifn, __u8 syncid)
 {
-	if (sync_state == IP_VS_STATE_MASTER)
-		stop_master_sync = set;
-	else if (sync_state == IP_VS_STATE_BACKUP)
-		stop_backup_sync = set;
-	else {
-		stop_master_sync = set;
-		stop_backup_sync = set;
-	}
-}
+	struct ip_vs_sync_thread_data *tinfo;
+	struct task_struct **realtask, *task;
+	struct socket *sock;
+	char *name, *buf = NULL;
+	int (*threadfn)(void *data);
+	int result = -ENOMEM;
 
-static int sync_thread(void *startup)
-{
-	DECLARE_WAITQUEUE(wait, current);
-	mm_segment_t oldmm;
-	int state;
-	const char *name;
-	struct ip_vs_sync_thread_data *tinfo = startup;
+	IP_VS_DBG(7, "%s: pid %d\n", __func__, task_pid_nr(current));
+	IP_VS_DBG(7, "Each ip_vs_sync_conn entry needs %Zd bytes\n",
+		  sizeof(struct ip_vs_sync_conn));
 
-	/* increase the module use count */
-	ip_vs_use_count_inc();
+	if (state == IP_VS_STATE_MASTER) {
+		if (sync_master_thread)
+			return -EEXIST;
 
-	if (ip_vs_sync_state & IP_VS_STATE_MASTER && !sync_master_pid) {
-		state = IP_VS_STATE_MASTER;
+		strlcpy(ip_vs_master_mcast_ifn, mcast_ifn,
+			sizeof(ip_vs_master_mcast_ifn));
+		ip_vs_master_syncid = syncid;
+		realtask = &sync_master_thread;
 		name = "ipvs_syncmaster";
-	} else if (ip_vs_sync_state & IP_VS_STATE_BACKUP && !sync_backup_pid) {
-		state = IP_VS_STATE_BACKUP;
+		threadfn = sync_thread_master;
+		sock = make_send_sock();
+	} else if (state == IP_VS_STATE_BACKUP) {
+		if (sync_backup_thread)
+			return -EEXIST;
+
+		strlcpy(ip_vs_backup_mcast_ifn, mcast_ifn,
+			sizeof(ip_vs_backup_mcast_ifn));
+		ip_vs_backup_syncid = syncid;
+		realtask = &sync_backup_thread;
 		name = "ipvs_syncbackup";
+		threadfn = sync_thread_backup;
+		sock = make_receive_sock();
 	} else {
-		IP_VS_BUG();
-		ip_vs_use_count_dec();
 		return -EINVAL;
 	}
 
-	daemonize(name);
-
-	oldmm = get_fs();
-	set_fs(KERNEL_DS);
-
-	/* Block all signals */
-	spin_lock_irq(&current->sighand->siglock);
-	siginitsetinv(&current->blocked, 0);
-	recalc_sigpending();
-	spin_unlock_irq(&current->sighand->siglock);
+	if (IS_ERR(sock)) {
+		result = PTR_ERR(sock);
+		goto out;
+	}
 
-	/* set the maximum length of sync message */
 	set_sync_mesg_maxlen(state);
+	if (state == IP_VS_STATE_BACKUP) {
+		buf = kmalloc(sync_recv_mesg_maxlen, GFP_KERNEL);
+		if (!buf)
+			goto outsocket;
+	}
 
-	/* set up multicast address */
-	mcast_addr.sin_family = AF_INET;
-	mcast_addr.sin_port = htons(IP_VS_SYNC_PORT);
-	mcast_addr.sin_addr.s_addr = htonl(IP_VS_SYNC_GROUP);
-
-	add_wait_queue(&sync_wait, &wait);
-
-	set_sync_pid(state, task_pid_nr(current));
-	complete(tinfo->startup);
-
-	/*
-	 * once we call the completion queue above, we should
-	 * null out that reference, since its allocated on the
-	 * stack of the creating kernel thread
-	 */
-	tinfo->startup = NULL;
-
-	/* processing master/backup loop here */
-	if (state == IP_VS_STATE_MASTER)
-		sync_master_loop();
-	else if (state == IP_VS_STATE_BACKUP)
-		sync_backup_loop();
-	else IP_VS_BUG();
-
-	remove_wait_queue(&sync_wait, &wait);
-
-	/* thread exits */
-
-	/*
-	 * If we weren't explicitly stopped, then we
-	 * exited in error, and should undo our state
-	 */
-	if ((!stop_master_sync) && (!stop_backup_sync))
-		ip_vs_sync_state -= tinfo->state;
+	tinfo = kmalloc(sizeof(*tinfo), GFP_KERNEL);
+	if (!tinfo)
+		goto outbuf;
 
-	set_sync_pid(state, 0);
-	IP_VS_INFO("sync thread stopped!\n");
+	tinfo->sock = sock;
+	tinfo->buf = buf;
 
-	set_fs(oldmm);
+	task = kthread_run(threadfn, tinfo, name);
+	if (IS_ERR(task)) {
+		result = PTR_ERR(task);
+		goto outtinfo;
+	}
 
-	/* decrease the module use count */
-	ip_vs_use_count_dec();
+	/* mark as active */
+	*realtask = task;
+	ip_vs_sync_state |= state;
 
-	set_stop_sync(state, 0);
-	wake_up(&stop_sync_wait);
+	/* increase the module use count */
+	ip_vs_use_count_inc();
 
-	/*
-	 * we need to free the structure that was allocated
-	 * for us in start_sync_thread
-	 */
-	kfree(tinfo);
 	return 0;
-}
-
-
-static int fork_sync_thread(void *startup)
-{
-	pid_t pid;
-
-	/* fork the sync thread here, then the parent process of the
-	   sync thread is the init process after this thread exits. */
-  repeat:
-	if ((pid = kernel_thread(sync_thread, startup, 0)) < 0) {
-		IP_VS_ERR("could not create sync_thread due to %d... "
-			  "retrying.\n", pid);
-		msleep_interruptible(1000);
-		goto repeat;
-	}
 
-	return 0;
+outtinfo:
+	kfree(tinfo);
+outbuf:
+	kfree(buf);
+outsocket:
+	sock_release(sock);
+out:
+	return result;
 }
 
 
-int start_sync_thread(int state, char *mcast_ifn, __u8 syncid)
+int stop_sync_thread(int state)
 {
-	DECLARE_COMPLETION_ONSTACK(startup);
-	pid_t pid;
-	struct ip_vs_sync_thread_data *tinfo;
-
-	if ((state == IP_VS_STATE_MASTER && sync_master_pid) ||
-	    (state == IP_VS_STATE_BACKUP && sync_backup_pid))
-		return -EEXIST;
-
-	/*
-	 * Note that tinfo will be freed in sync_thread on exit
-	 */
-	tinfo = kmalloc(sizeof(struct ip_vs_sync_thread_data), GFP_KERNEL);
-	if (!tinfo)
-		return -ENOMEM;
-
 	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));
 
-	ip_vs_sync_state |= state;
 	if (state == IP_VS_STATE_MASTER) {
-		strlcpy(ip_vs_master_mcast_ifn, mcast_ifn,
-			sizeof(ip_vs_master_mcast_ifn));
-		ip_vs_master_syncid = syncid;
-	} else {
-		strlcpy(ip_vs_backup_mcast_ifn, mcast_ifn,
-			sizeof(ip_vs_backup_mcast_ifn));
-		ip_vs_backup_syncid = syncid;
-	}
-
-	tinfo->state = state;
-	tinfo->startup = &startup;
-
-  repeat:
-	if ((pid = kernel_thread(fork_sync_thread, tinfo, 0)) < 0) {
-		IP_VS_ERR("could not create fork_sync_thread due to %d... "
-			  "retrying.\n", pid);
-		msleep_interruptible(1000);
-		goto repeat;
-	}
-
-	wait_for_completion(&startup);
-
-	return 0;
-}
+		if (!sync_master_thread)
+			return -ESRCH;
 
+		IP_VS_INFO("stopping master sync thread %d ...\n",
+			   task_pid_nr(sync_master_thread));
 
-int stop_sync_thread(int state)
-{
-	DECLARE_WAITQUEUE(wait, current);
+		/*
+		 * The lock synchronizes with sb_queue_tail(), so that we don't
+		 * add sync buffers to the queue, when we are already in
+		 * progress of stopping the master sync daemon.
+		 */
 
-	if ((state == IP_VS_STATE_MASTER && !sync_master_pid) ||
-	    (state == IP_VS_STATE_BACKUP && !sync_backup_pid))
-		return -ESRCH;
+		spin_lock(&ip_vs_sync_lock);
+		ip_vs_sync_state &= ~IP_VS_STATE_MASTER;
+		spin_unlock(&ip_vs_sync_lock);
+		kthread_stop(sync_master_thread);
+		sync_master_thread = NULL;
+	} else if (state == IP_VS_STATE_BACKUP) {
+		if (!sync_backup_thread)
+			return -ESRCH;
+
+		IP_VS_INFO("stopping backup sync thread %d ...\n",
+			   task_pid_nr(sync_backup_thread));
+
+		ip_vs_sync_state &= ~IP_VS_STATE_BACKUP;
+		kthread_stop(sync_backup_thread);
+		sync_backup_thread = NULL;
+	} else {
+		return -EINVAL;
+	}
 
-	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);
-
-	__set_current_state(TASK_UNINTERRUPTIBLE);
-	add_wait_queue(&stop_sync_wait, &wait);
-	set_stop_sync(state, 1);
-	ip_vs_sync_state -= state;
-	wake_up(&sync_wait);
-	schedule();
-	__set_current_state(TASK_RUNNING);
-	remove_wait_queue(&stop_sync_wait, &wait);
-
-	/* Note: no need to reap the sync thread, because its parent
-	   process is the init process */
-
-	if ((state == IP_VS_STATE_MASTER && stop_master_sync) ||
-	    (state == IP_VS_STATE_BACKUP && stop_backup_sync))
-		IP_VS_BUG();
+	/* decrease the module use count */
+	ip_vs_use_count_dec();
 
 	return 0;
 }
diff --git a/net/ipv4/ipvs/ip_vs_wlc.c b/net/ipv4/ipvs/ip_vs_wlc.c
index 8a9d913261d..772c3cb4eca 100644
--- a/net/ipv4/ipvs/ip_vs_wlc.c
+++ b/net/ipv4/ipvs/ip_vs_wlc.c
@@ -1,8 +1,6 @@
 /*
  * IPVS:        Weighted Least-Connection Scheduling module
  *
- * Version:     $Id: ip_vs_wlc.c,v 1.13 2003/04/18 09:03:16 wensong Exp $
- *
  * Authors:     Wensong Zhang <wensong@linuxvirtualserver.org>
  *              Peter Kese <peter.kese@ijs.si>
  *
diff --git a/net/ipv4/ipvs/ip_vs_wrr.c b/net/ipv4/ipvs/ip_vs_wrr.c
index 85c680add6d..1d6932d7dc9 100644
--- a/net/ipv4/ipvs/ip_vs_wrr.c
+++ b/net/ipv4/ipvs/ip_vs_wrr.c
@@ -1,8 +1,6 @@
 /*
  * IPVS:        Weighted Round-Robin Scheduling module
  *
- * Version:     $Id: ip_vs_wrr.c,v 1.12 2002/09/15 08:14:08 wensong Exp $
- *
  * Authors:     Wensong Zhang <wensong@linuxvirtualserver.org>
  *
  *              This program is free software; you can redistribute it and/or
diff --git a/net/ipv4/ipvs/ip_vs_xmit.c b/net/ipv4/ipvs/ip_vs_xmit.c
index f63006caea0..9892d4aca42 100644
--- a/net/ipv4/ipvs/ip_vs_xmit.c
+++ b/net/ipv4/ipvs/ip_vs_xmit.c
@@ -1,8 +1,6 @@
 /*
  * ip_vs_xmit.c: various packet transmitters for IPVS
  *
- * Version:     $Id: ip_vs_xmit.c,v 1.2 2002/11/30 01:50:35 wensong Exp $
- *
  * Authors:     Wensong Zhang <wensong@linuxvirtualserver.org>
  *              Julian Anastasov <ja@ssi.bg>
  *
diff --git a/net/ipv4/netfilter/Kconfig b/net/ipv4/netfilter/Kconfig
index 2767841a8ce..f23e60c93ef 100644
--- a/net/ipv4/netfilter/Kconfig
+++ b/net/ipv4/netfilter/Kconfig
@@ -213,8 +213,7 @@ config IP_NF_TARGET_NETMAP
 	help
 	  NETMAP is an implementation of static 1:1 NAT mapping of network
 	  addresses. It maps the network address part, while keeping the host
-	  address part intact. It is similar to Fast NAT, except that
-	  Netfilter's connection tracking doesn't work well with Fast NAT.
+	  address part intact.
 
 	  To compile it as a module, choose M here.  If unsure, say N.
 
@@ -365,6 +364,18 @@ config IP_NF_RAW
 	  If you want to compile it as a module, say M here and read
 	  <file:Documentation/kbuild/modules.txt>.  If unsure, say `N'.
 
+# security table for MAC policy
+config IP_NF_SECURITY
+	tristate "Security table"
+	depends on IP_NF_IPTABLES
+	depends on SECURITY
+	default m if NETFILTER_ADVANCED=n
+	help
+	  This option adds a `security' table to iptables, for use
+	  with Mandatory Access Control (MAC) policy.
+	 
+	  If unsure, say N.
+
 # ARP tables
 config IP_NF_ARPTABLES
 	tristate "ARP tables support"
diff --git a/net/ipv4/netfilter/Makefile b/net/ipv4/netfilter/Makefile
index d9b92fbf557..3f31291f37c 100644
--- a/net/ipv4/netfilter/Makefile
+++ b/net/ipv4/netfilter/Makefile
@@ -42,6 +42,7 @@ obj-$(CONFIG_IP_NF_FILTER) += iptable_filter.o
 obj-$(CONFIG_IP_NF_MANGLE) += iptable_mangle.o
 obj-$(CONFIG_NF_NAT) += iptable_nat.o
 obj-$(CONFIG_IP_NF_RAW) += iptable_raw.o
+obj-$(CONFIG_IP_NF_SECURITY) += iptable_security.o
 
 # matches
 obj-$(CONFIG_IP_NF_MATCH_ADDRTYPE) += ipt_addrtype.o
diff --git a/net/ipv4/netfilter/ip_queue.c b/net/ipv4/netfilter/ip_queue.c
index 26a37cedcf2..432ce9d1c11 100644
--- a/net/ipv4/netfilter/ip_queue.c
+++ b/net/ipv4/netfilter/ip_queue.c
@@ -156,7 +156,6 @@ ipq_build_packet_message(struct nf_queue_entry *entry, int *errp)
 	case IPQ_COPY_META:
 	case IPQ_COPY_NONE:
 		size = NLMSG_SPACE(sizeof(*pmsg));
-		data_len = 0;
 		break;
 
 	case IPQ_COPY_PACKET:
@@ -224,8 +223,6 @@ ipq_build_packet_message(struct nf_queue_entry *entry, int *errp)
 	return skb;
 
 nlmsg_failure:
-	if (skb)
-		kfree_skb(skb);
 	*errp = -EINVAL;
 	printk(KERN_ERR "ip_queue: error creating packet message\n");
 	return NULL;
@@ -480,7 +477,7 @@ ipq_rcv_dev_event(struct notifier_block *this,
 {
 	struct net_device *dev = ptr;
 
-	if (dev_net(dev) != &init_net)
+	if (!net_eq(dev_net(dev), &init_net))
 		return NOTIFY_DONE;
 
 	/* Drop any packets associated with the downed device */
diff --git a/net/ipv4/netfilter/ipt_MASQUERADE.c b/net/ipv4/netfilter/ipt_MASQUERADE.c
index 84c26dd27d8..0841aefaa50 100644
--- a/net/ipv4/netfilter/ipt_MASQUERADE.c
+++ b/net/ipv4/netfilter/ipt_MASQUERADE.c
@@ -120,7 +120,7 @@ static int masq_device_event(struct notifier_block *this,
 {
 	const struct net_device *dev = ptr;
 
-	if (dev_net(dev) != &init_net)
+	if (!net_eq(dev_net(dev), &init_net))
 		return NOTIFY_DONE;
 
 	if (event == NETDEV_DOWN) {
diff --git a/net/ipv4/netfilter/iptable_security.c b/net/ipv4/netfilter/iptable_security.c
new file mode 100644
index 00000000000..2b472ac2263
--- /dev/null
+++ b/net/ipv4/netfilter/iptable_security.c
@@ -0,0 +1,180 @@
+/*
+ * "security" table
+ *
+ * This is for use by Mandatory Access Control (MAC) security models,
+ * which need to be able to manage security policy in separate context
+ * to DAC.
+ *
+ * Based on iptable_mangle.c
+ *
+ * Copyright (C) 1999 Paul `Rusty' Russell & Michael J. Neuling
+ * Copyright (C) 2000-2004 Netfilter Core Team <coreteam <at> netfilter.org>
+ * Copyright (C) 2008 Red Hat, Inc., James Morris <jmorris <at> redhat.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/module.h>
+#include <linux/netfilter_ipv4/ip_tables.h>
+#include <net/ip.h>
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("James Morris <jmorris <at> redhat.com>");
+MODULE_DESCRIPTION("iptables security table, for MAC rules");
+
+#define SECURITY_VALID_HOOKS	(1 << NF_INET_LOCAL_IN) | \
+				(1 << NF_INET_FORWARD) | \
+				(1 << NF_INET_LOCAL_OUT)
+
+static struct
+{
+	struct ipt_replace repl;
+	struct ipt_standard entries[3];
+	struct ipt_error term;
+} initial_table __initdata = {
+	.repl = {
+		.name = "security",
+		.valid_hooks = SECURITY_VALID_HOOKS,
+		.num_entries = 4,
+		.size = sizeof(struct ipt_standard) * 3 + sizeof(struct ipt_error),
+		.hook_entry = {
+			[NF_INET_LOCAL_IN] 	= 0,
+			[NF_INET_FORWARD] 	= sizeof(struct ipt_standard),
+			[NF_INET_LOCAL_OUT] 	= sizeof(struct ipt_standard) * 2,
+		},
+		.underflow = {
+			[NF_INET_LOCAL_IN] 	= 0,
+			[NF_INET_FORWARD] 	= sizeof(struct ipt_standard),
+			[NF_INET_LOCAL_OUT] 	= sizeof(struct ipt_standard) * 2,
+		},
+	},
+	.entries = {
+		IPT_STANDARD_INIT(NF_ACCEPT),	/* LOCAL_IN */
+		IPT_STANDARD_INIT(NF_ACCEPT),	/* FORWARD */
+		IPT_STANDARD_INIT(NF_ACCEPT),	/* LOCAL_OUT */
+	},
+	.term = IPT_ERROR_INIT,			/* ERROR */
+};
+
+static struct xt_table security_table = {
+	.name		= "security",
+	.valid_hooks	= SECURITY_VALID_HOOKS,
+	.lock		= __RW_LOCK_UNLOCKED(security_table.lock),
+	.me		= THIS_MODULE,
+	.af		= AF_INET,
+};
+
+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_security);
+}
+
+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,
+			    nf_forward_net(in, out)->ipv4.iptable_security);
+}
+
+static unsigned int
+ipt_local_out_hook(unsigned int hook,
+		   struct sk_buff *skb,
+		   const struct net_device *in,
+		   const struct net_device *out,
+		   int (*okfn)(struct sk_buff *))
+{
+	/* Somebody is playing with raw sockets. */
+	if (skb->len < sizeof(struct iphdr)
+	    || ip_hdrlen(skb) < sizeof(struct iphdr)) {
+		if (net_ratelimit())
+			printk(KERN_INFO "iptable_security: ignoring short "
+			       "SOCK_RAW packet.\n");
+		return NF_ACCEPT;
+	}
+	return ipt_do_table(skb, hook, in, out,
+			    nf_local_out_net(in, out)->ipv4.iptable_security);
+}
+
+static struct nf_hook_ops ipt_ops[] __read_mostly = {
+	{
+		.hook		= ipt_local_in_hook,
+		.owner		= THIS_MODULE,
+		.pf		= PF_INET,
+		.hooknum	= NF_INET_LOCAL_IN,
+		.priority	= NF_IP_PRI_SECURITY,
+	},
+	{
+		.hook		= ipt_forward_hook,
+		.owner		= THIS_MODULE,
+		.pf		= PF_INET,
+		.hooknum	= NF_INET_FORWARD,
+		.priority	= NF_IP_PRI_SECURITY,
+	},
+	{
+		.hook		= ipt_local_out_hook,
+		.owner		= THIS_MODULE,
+		.pf		= PF_INET,
+		.hooknum	= NF_INET_LOCAL_OUT,
+		.priority	= NF_IP_PRI_SECURITY,
+	},
+};
+
+static int __net_init iptable_security_net_init(struct net *net)
+{
+	net->ipv4.iptable_security =
+		ipt_register_table(net, &security_table, &initial_table.repl);
+
+	if (IS_ERR(net->ipv4.iptable_security))
+		return PTR_ERR(net->ipv4.iptable_security);
+
+	return 0;
+}
+
+static void __net_exit iptable_security_net_exit(struct net *net)
+{
+	ipt_unregister_table(net->ipv4.iptable_security);
+}
+
+static struct pernet_operations iptable_security_net_ops = {
+	.init = iptable_security_net_init,
+	.exit = iptable_security_net_exit,
+};
+
+static int __init iptable_security_init(void)
+{
+	int ret;
+
+	ret = register_pernet_subsys(&iptable_security_net_ops);
+        if (ret < 0)
+		return ret;
+
+	ret = nf_register_hooks(ipt_ops, ARRAY_SIZE(ipt_ops));
+	if (ret < 0)
+		goto cleanup_table;
+
+	return ret;
+
+cleanup_table:
+	unregister_pernet_subsys(&iptable_security_net_ops);
+	return ret;
+}
+
+static void __exit iptable_security_fini(void)
+{
+	nf_unregister_hooks(ipt_ops, ARRAY_SIZE(ipt_ops));
+	unregister_pernet_subsys(&iptable_security_net_ops);
+}
+
+module_init(iptable_security_init);
+module_exit(iptable_security_fini);
diff --git a/net/ipv4/netfilter/nf_conntrack_proto_icmp.c b/net/ipv4/netfilter/nf_conntrack_proto_icmp.c
index 78ab19accac..97791048fa9 100644
--- a/net/ipv4/netfilter/nf_conntrack_proto_icmp.c
+++ b/net/ipv4/netfilter/nf_conntrack_proto_icmp.c
@@ -87,9 +87,8 @@ static int icmp_packet(struct nf_conn *ct,
 	   means this will only run once even if count hits zero twice
 	   (theoretically possible with SMP) */
 	if (CTINFO2DIR(ctinfo) == IP_CT_DIR_REPLY) {
-		if (atomic_dec_and_test(&ct->proto.icmp.count)
-		    && del_timer(&ct->timeout))
-			ct->timeout.function((unsigned long)ct);
+		if (atomic_dec_and_test(&ct->proto.icmp.count))
+			nf_ct_kill_acct(ct, ctinfo, skb);
 	} else {
 		atomic_inc(&ct->proto.icmp.count);
 		nf_conntrack_event_cache(IPCT_PROTOINFO_VOLATILE, skb);
diff --git a/net/ipv4/netfilter/nf_nat_proto_sctp.c b/net/ipv4/netfilter/nf_nat_proto_sctp.c
index 82e4c0e286b..65e470bc612 100644
--- a/net/ipv4/netfilter/nf_nat_proto_sctp.c
+++ b/net/ipv4/netfilter/nf_nat_proto_sctp.c
@@ -36,7 +36,7 @@ sctp_manip_pkt(struct sk_buff *skb,
 	sctp_sctphdr_t *hdr;
 	unsigned int hdroff = iphdroff + iph->ihl*4;
 	__be32 oldip, newip;
-	u32 crc32;
+	__be32 crc32;
 
 	if (!skb_make_writable(skb, hdroff + sizeof(*hdr)))
 		return false;
@@ -61,7 +61,7 @@ sctp_manip_pkt(struct sk_buff *skb,
 		crc32 = sctp_update_cksum((u8 *)skb->data, skb_headlen(skb),
 					  crc32);
 	crc32 = sctp_end_cksum(crc32);
-	hdr->checksum = htonl(crc32);
+	hdr->checksum = crc32;
 
 	return true;
 }
diff --git a/net/ipv4/proc.c b/net/ipv4/proc.c
index 552169b41b1..834356ea99d 100644
--- a/net/ipv4/proc.c
+++ b/net/ipv4/proc.c
@@ -7,8 +7,6 @@
  *		PROC file system.  It is mainly used for debugging and
  *		statistics.
  *
- * Version:	$Id: proc.c,v 1.45 2001/05/16 16:45:35 davem Exp $
- *
  * Authors:	Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
  *		Gerald J. Heim, <heim@peanuts.informatik.uni-tuebingen.de>
  *		Fred Baumgarten, <dc6iq@insu1.etec.uni-karlsruhe.de>
@@ -73,32 +71,7 @@ static int sockstat_seq_show(struct seq_file *seq, void *v)
 
 static int sockstat_seq_open(struct inode *inode, struct file *file)
 {
-	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);
+	return single_open_net(inode, file, sockstat_seq_show);
 }
 
 static const struct file_operations sockstat_seq_fops = {
@@ -106,7 +79,7 @@ static const struct file_operations sockstat_seq_fops = {
 	.open	 = sockstat_seq_open,
 	.read	 = seq_read,
 	.llseek	 = seq_lseek,
-	.release = sockstat_seq_release,
+	.release = single_release_net,
 };
 
 /* snmp items */
@@ -268,11 +241,12 @@ static void icmpmsg_put(struct seq_file *seq)
 
 	int j, i, count;
 	static int out[PERLINE];
+	struct net *net = seq->private;
 
 	count = 0;
 	for (i = 0; i < ICMPMSG_MIB_MAX; i++) {
 
-		if (snmp_fold_field((void **) icmpmsg_statistics, i))
+		if (snmp_fold_field((void **) net->mib.icmpmsg_statistics, i))
 			out[count++] = i;
 		if (count < PERLINE)
 			continue;
@@ -284,7 +258,7 @@ static void icmpmsg_put(struct seq_file *seq)
 		seq_printf(seq, "\nIcmpMsg: ");
 		for (j = 0; j < PERLINE; ++j)
 			seq_printf(seq, " %lu",
-				snmp_fold_field((void **) icmpmsg_statistics,
+				snmp_fold_field((void **) net->mib.icmpmsg_statistics,
 				out[j]));
 		seq_putc(seq, '\n');
 	}
@@ -296,7 +270,7 @@ static void icmpmsg_put(struct seq_file *seq)
 		seq_printf(seq, "\nIcmpMsg:");
 		for (j = 0; j < count; ++j)
 			seq_printf(seq, " %lu", snmp_fold_field((void **)
-				icmpmsg_statistics, out[j]));
+				net->mib.icmpmsg_statistics, out[j]));
 	}
 
 #undef PERLINE
@@ -305,6 +279,7 @@ static void icmpmsg_put(struct seq_file *seq)
 static void icmp_put(struct seq_file *seq)
 {
 	int i;
+	struct net *net = seq->private;
 
 	seq_puts(seq, "\nIcmp: InMsgs InErrors");
 	for (i=0; icmpmibmap[i].name != NULL; i++)
@@ -313,18 +288,18 @@ static void icmp_put(struct seq_file *seq)
 	for (i=0; icmpmibmap[i].name != NULL; i++)
 		seq_printf(seq, " Out%s", icmpmibmap[i].name);
 	seq_printf(seq, "\nIcmp: %lu %lu",
-		snmp_fold_field((void **) icmp_statistics, ICMP_MIB_INMSGS),
-		snmp_fold_field((void **) icmp_statistics, ICMP_MIB_INERRORS));
+		snmp_fold_field((void **) net->mib.icmp_statistics, ICMP_MIB_INMSGS),
+		snmp_fold_field((void **) net->mib.icmp_statistics, ICMP_MIB_INERRORS));
 	for (i=0; icmpmibmap[i].name != NULL; i++)
 		seq_printf(seq, " %lu",
-			snmp_fold_field((void **) icmpmsg_statistics,
+			snmp_fold_field((void **) net->mib.icmpmsg_statistics,
 				icmpmibmap[i].index));
 	seq_printf(seq, " %lu %lu",
-		snmp_fold_field((void **) icmp_statistics, ICMP_MIB_OUTMSGS),
-		snmp_fold_field((void **) icmp_statistics, ICMP_MIB_OUTERRORS));
+		snmp_fold_field((void **) net->mib.icmp_statistics, ICMP_MIB_OUTMSGS),
+		snmp_fold_field((void **) net->mib.icmp_statistics, ICMP_MIB_OUTERRORS));
 	for (i=0; icmpmibmap[i].name != NULL; i++)
 		seq_printf(seq, " %lu",
-			snmp_fold_field((void **) icmpmsg_statistics,
+			snmp_fold_field((void **) net->mib.icmpmsg_statistics,
 				icmpmibmap[i].index | 0x100));
 }
 
@@ -334,6 +309,7 @@ static void icmp_put(struct seq_file *seq)
 static int snmp_seq_show(struct seq_file *seq, void *v)
 {
 	int i;
+	struct net *net = seq->private;
 
 	seq_puts(seq, "Ip: Forwarding DefaultTTL");
 
@@ -341,12 +317,12 @@ static int snmp_seq_show(struct seq_file *seq, void *v)
 		seq_printf(seq, " %s", snmp4_ipstats_list[i].name);
 
 	seq_printf(seq, "\nIp: %d %d",
-		   IPV4_DEVCONF_ALL(&init_net, FORWARDING) ? 1 : 2,
+		   IPV4_DEVCONF_ALL(net, FORWARDING) ? 1 : 2,
 		   sysctl_ip_default_ttl);
 
 	for (i = 0; snmp4_ipstats_list[i].name != NULL; i++)
 		seq_printf(seq, " %lu",
-			   snmp_fold_field((void **)ip_statistics,
+			   snmp_fold_field((void **)net->mib.ip_statistics,
 					   snmp4_ipstats_list[i].entry));
 
 	icmp_put(seq);	/* RFC 2011 compatibility */
@@ -361,11 +337,11 @@ static int snmp_seq_show(struct seq_file *seq, void *v)
 		/* MaxConn field is signed, RFC 2012 */
 		if (snmp4_tcp_list[i].entry == TCP_MIB_MAXCONN)
 			seq_printf(seq, " %ld",
-				   snmp_fold_field((void **)tcp_statistics,
+				   snmp_fold_field((void **)net->mib.tcp_statistics,
 						   snmp4_tcp_list[i].entry));
 		else
 			seq_printf(seq, " %lu",
-				   snmp_fold_field((void **)tcp_statistics,
+				   snmp_fold_field((void **)net->mib.tcp_statistics,
 						   snmp4_tcp_list[i].entry));
 	}
 
@@ -376,7 +352,7 @@ static int snmp_seq_show(struct seq_file *seq, void *v)
 	seq_puts(seq, "\nUdp:");
 	for (i = 0; snmp4_udp_list[i].name != NULL; i++)
 		seq_printf(seq, " %lu",
-			   snmp_fold_field((void **)udp_statistics,
+			   snmp_fold_field((void **)net->mib.udp_statistics,
 					   snmp4_udp_list[i].entry));
 
 	/* the UDP and UDP-Lite MIBs are the same */
@@ -387,7 +363,7 @@ static int snmp_seq_show(struct seq_file *seq, void *v)
 	seq_puts(seq, "\nUdpLite:");
 	for (i = 0; snmp4_udp_list[i].name != NULL; i++)
 		seq_printf(seq, " %lu",
-			   snmp_fold_field((void **)udplite_statistics,
+			   snmp_fold_field((void **)net->mib.udplite_statistics,
 					   snmp4_udp_list[i].entry));
 
 	seq_putc(seq, '\n');
@@ -396,7 +372,7 @@ static int snmp_seq_show(struct seq_file *seq, void *v)
 
 static int snmp_seq_open(struct inode *inode, struct file *file)
 {
-	return single_open(file, snmp_seq_show, NULL);
+	return single_open_net(inode, file, snmp_seq_show);
 }
 
 static const struct file_operations snmp_seq_fops = {
@@ -404,7 +380,7 @@ static const struct file_operations snmp_seq_fops = {
 	.open	 = snmp_seq_open,
 	.read	 = seq_read,
 	.llseek	 = seq_lseek,
-	.release = single_release,
+	.release = single_release_net,
 };
 
 
@@ -415,6 +391,7 @@ static const struct file_operations snmp_seq_fops = {
 static int netstat_seq_show(struct seq_file *seq, void *v)
 {
 	int i;
+	struct net *net = seq->private;
 
 	seq_puts(seq, "TcpExt:");
 	for (i = 0; snmp4_net_list[i].name != NULL; i++)
@@ -423,7 +400,7 @@ static int netstat_seq_show(struct seq_file *seq, void *v)
 	seq_puts(seq, "\nTcpExt:");
 	for (i = 0; snmp4_net_list[i].name != NULL; i++)
 		seq_printf(seq, " %lu",
-			   snmp_fold_field((void **)net_statistics,
+			   snmp_fold_field((void **)net->mib.net_statistics,
 					   snmp4_net_list[i].entry));
 
 	seq_puts(seq, "\nIpExt:");
@@ -433,7 +410,7 @@ static int netstat_seq_show(struct seq_file *seq, void *v)
 	seq_puts(seq, "\nIpExt:");
 	for (i = 0; snmp4_ipextstats_list[i].name != NULL; i++)
 		seq_printf(seq, " %lu",
-			   snmp_fold_field((void **)ip_statistics,
+			   snmp_fold_field((void **)net->mib.ip_statistics,
 					   snmp4_ipextstats_list[i].entry));
 
 	seq_putc(seq, '\n');
@@ -442,7 +419,7 @@ static int netstat_seq_show(struct seq_file *seq, void *v)
 
 static int netstat_seq_open(struct inode *inode, struct file *file)
 {
-	return single_open(file, netstat_seq_show, NULL);
+	return single_open_net(inode, file, netstat_seq_show);
 }
 
 static const struct file_operations netstat_seq_fops = {
@@ -450,18 +427,32 @@ static const struct file_operations netstat_seq_fops = {
 	.open	 = netstat_seq_open,
 	.read	 = seq_read,
 	.llseek	 = seq_lseek,
-	.release = single_release,
+	.release = single_release_net,
 };
 
 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;
+		goto out_sockstat;
+	if (!proc_net_fops_create(net, "netstat", S_IRUGO, &netstat_seq_fops))
+		goto out_netstat;
+	if (!proc_net_fops_create(net, "snmp", S_IRUGO, &snmp_seq_fops))
+		goto out_snmp;
+
 	return 0;
+
+out_snmp:
+	proc_net_remove(net, "netstat");
+out_netstat:
+	proc_net_remove(net, "sockstat");
+out_sockstat:
+	return -ENOMEM;
 }
 
 static __net_exit void ip_proc_exit_net(struct net *net)
 {
+	proc_net_remove(net, "snmp");
+	proc_net_remove(net, "netstat");
 	proc_net_remove(net, "sockstat");
 }
 
@@ -472,24 +463,6 @@ static __net_initdata struct pernet_operations ip_proc_ops = {
 
 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;
-out:
-	return rc;
-out_snmp:
-	proc_net_remove(&init_net, "netstat");
-out_netstat:
-	unregister_pernet_subsys(&ip_proc_ops);
-out_pernet:
-	rc = -ENOMEM;
-	goto out;
+	return register_pernet_subsys(&ip_proc_ops);
 }
 
diff --git a/net/ipv4/protocol.c b/net/ipv4/protocol.c
index 971ab9356e5..ea50da0649f 100644
--- a/net/ipv4/protocol.c
+++ b/net/ipv4/protocol.c
@@ -5,8 +5,6 @@
  *
  *		INET protocol dispatch tables.
  *
- * Version:	$Id: protocol.c,v 1.14 2001/05/18 02:25:49 davem Exp $
- *
  * Authors:	Ross Biro
  *		Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
  *
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index 37a1ecd9d60..cd975743bcd 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -5,8 +5,6 @@
  *
  *		RAW - implementation of IP "raw" sockets.
  *
- * Version:	$Id: raw.c,v 1.64 2002/02/01 22:01:04 davem Exp $
- *
  * Authors:	Ross Biro
  *		Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
  *
@@ -322,6 +320,7 @@ static int raw_send_hdrinc(struct sock *sk, void *from, size_t length,
 			unsigned int flags)
 {
 	struct inet_sock *inet = inet_sk(sk);
+	struct net *net = sock_net(sk);
 	struct iphdr *iph;
 	struct sk_buff *skb;
 	unsigned int iphlen;
@@ -370,7 +369,7 @@ static int raw_send_hdrinc(struct sock *sk, void *from, size_t length,
 		iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl);
 	}
 	if (iph->protocol == IPPROTO_ICMP)
-		icmp_out_count(((struct icmphdr *)
+		icmp_out_count(net, ((struct icmphdr *)
 			skb_transport_header(skb))->type);
 
 	err = NF_HOOK(PF_INET, NF_INET_LOCAL_OUT, skb, NULL, rt->u.dst.dev,
@@ -386,7 +385,7 @@ error_fault:
 	err = -EFAULT;
 	kfree_skb(skb);
 error:
-	IP_INC_STATS(IPSTATS_MIB_OUTDISCARDS);
+	IP_INC_STATS(net, IPSTATS_MIB_OUTDISCARDS);
 	return err;
 }
 
@@ -608,12 +607,11 @@ static void raw_close(struct sock *sk, long timeout)
 	sk_common_release(sk);
 }
 
-static int raw_destroy(struct sock *sk)
+static void raw_destroy(struct sock *sk)
 {
 	lock_sock(sk);
 	ip_flush_pending_frames(sk);
 	release_sock(sk);
-	return 0;
 }
 
 /* This gets rid of all the nasties in af_inet. -DaveM */
@@ -947,7 +945,7 @@ static int raw_seq_show(struct seq_file *seq, void *v)
 	if (v == SEQ_START_TOKEN)
 		seq_printf(seq, "  sl  local_address rem_address   st tx_queue "
 				"rx_queue tr tm->when retrnsmt   uid  timeout "
-				"inode  drops\n");
+				"inode ref pointer drops\n");
 	else
 		raw_sock_seq_show(seq, v, raw_seq_private(seq)->bucket);
 	return 0;
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 96be336064f..e4ab0ac94f9 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -5,8 +5,6 @@
  *
  *		ROUTE - implementation of the IP router.
  *
- * Version:	$Id: route.c,v 1.103 2002/01/12 07:44:09 davem Exp $
- *
  * Authors:	Ross Biro
  *		Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
  *		Alan Cox, <gw4pts@gw4pts.ampr.org>
@@ -134,7 +132,6 @@ 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);
-static struct timer_list rt_secret_timer;
 
 /*
  *	Interface to generic destination cache.
@@ -253,20 +250,25 @@ static inline void rt_hash_lock_init(void)
 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 inline unsigned int rt_hash(__be32 daddr, __be32 saddr, int idx)
+static inline unsigned int rt_hash(__be32 daddr, __be32 saddr, int idx,
+		int genid)
 {
 	return jhash_3words((__force u32)(__be32)(daddr),
 			    (__force u32)(__be32)(saddr),
-			    idx, atomic_read(&rt_genid))
+			    idx, genid)
 		& rt_hash_mask;
 }
 
+static inline int rt_genid(struct net *net)
+{
+	return atomic_read(&net->ipv4.rt_genid);
+}
+
 #ifdef CONFIG_PROC_FS
 struct rt_cache_iter_state {
 	struct seq_net_private p;
@@ -336,7 +338,7 @@ 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(seq, *pos - 1);
-	st->genid = atomic_read(&rt_genid);
+	st->genid = rt_genid(seq_file_net(seq));
 	return SEQ_START_TOKEN;
 }
 
@@ -683,6 +685,11 @@ static inline int compare_netns(struct rtable *rt1, struct rtable *rt2)
 	return dev_net(rt1->u.dst.dev) == dev_net(rt2->u.dst.dev);
 }
 
+static inline int rt_is_expired(struct rtable *rth)
+{
+	return rth->rt_genid != rt_genid(dev_net(rth->u.dst.dev));
+}
+
 /*
  * Perform a full scan of hash table and free all entries.
  * Can be called by a softirq or a process.
@@ -692,6 +699,7 @@ static void rt_do_flush(int process_context)
 {
 	unsigned int i;
 	struct rtable *rth, *next;
+	struct rtable * tail;
 
 	for (i = 0; i <= rt_hash_mask; i++) {
 		if (process_context && need_resched())
@@ -701,11 +709,39 @@ static void rt_do_flush(int process_context)
 			continue;
 
 		spin_lock_bh(rt_hash_lock_addr(i));
+#ifdef CONFIG_NET_NS
+		{
+		struct rtable ** prev, * p;
+
+		rth = rt_hash_table[i].chain;
+
+		/* defer releasing the head of the list after spin_unlock */
+		for (tail = rth; tail; tail = tail->u.dst.rt_next)
+			if (!rt_is_expired(tail))
+				break;
+		if (rth != tail)
+			rt_hash_table[i].chain = tail;
+
+		/* call rt_free on entries after the tail requiring flush */
+		prev = &rt_hash_table[i].chain;
+		for (p = *prev; p; p = next) {
+			next = p->u.dst.rt_next;
+			if (!rt_is_expired(p)) {
+				prev = &p->u.dst.rt_next;
+			} else {
+				*prev = next;
+				rt_free(p);
+			}
+		}
+		}
+#else
 		rth = rt_hash_table[i].chain;
 		rt_hash_table[i].chain = NULL;
+		tail = NULL;
+#endif
 		spin_unlock_bh(rt_hash_lock_addr(i));
 
-		for (; rth; rth = next) {
+		for (; rth != tail; rth = next) {
 			next = rth->u.dst.rt_next;
 			rt_free(rth);
 		}
@@ -738,7 +774,7 @@ static void rt_check_expire(void)
 			continue;
 		spin_lock_bh(rt_hash_lock_addr(i));
 		while ((rth = *rthp) != NULL) {
-			if (rth->rt_genid != atomic_read(&rt_genid)) {
+			if (rt_is_expired(rth)) {
 				*rthp = rth->u.dst.rt_next;
 				rt_free(rth);
 				continue;
@@ -781,21 +817,21 @@ static void rt_worker_func(struct work_struct *work)
  * many times (2^24) without giving recent rt_genid.
  * Jenkins hash is strong enough that litle changes of rt_genid are OK.
  */
-static void rt_cache_invalidate(void)
+static void rt_cache_invalidate(struct net *net)
 {
 	unsigned char shuffle;
 
 	get_random_bytes(&shuffle, sizeof(shuffle));
-	atomic_add(shuffle + 1U, &rt_genid);
+	atomic_add(shuffle + 1U, &net->ipv4.rt_genid);
 }
 
 /*
  * delay < 0  : invalidate cache (fast : entries will be deleted later)
  * delay >= 0 : invalidate & flush cache (can be long)
  */
-void rt_cache_flush(int delay)
+void rt_cache_flush(struct net *net, int delay)
 {
-	rt_cache_invalidate();
+	rt_cache_invalidate(net);
 	if (delay >= 0)
 		rt_do_flush(!in_softirq());
 }
@@ -803,10 +839,11 @@ void rt_cache_flush(int delay)
 /*
  * We change rt_genid and let gc do the cleanup
  */
-static void rt_secret_rebuild(unsigned long dummy)
+static void rt_secret_rebuild(unsigned long __net)
 {
-	rt_cache_invalidate();
-	mod_timer(&rt_secret_timer, jiffies + ip_rt_secret_interval);
+	struct net *net = (struct net *)__net;
+	rt_cache_invalidate(net);
+	mod_timer(&net->ipv4.rt_secret_timer, jiffies + ip_rt_secret_interval);
 }
 
 /*
@@ -882,7 +919,7 @@ static int rt_garbage_collect(struct dst_ops *ops)
 			rthp = &rt_hash_table[k].chain;
 			spin_lock_bh(rt_hash_lock_addr(k));
 			while ((rth = *rthp) != NULL) {
-				if (rth->rt_genid == atomic_read(&rt_genid) &&
+				if (!rt_is_expired(rth) &&
 					!rt_may_expire(rth, tmo, expire)) {
 					tmo >>= 1;
 					rthp = &rth->u.dst.rt_next;
@@ -964,7 +1001,7 @@ restart:
 
 	spin_lock_bh(rt_hash_lock_addr(hash));
 	while ((rth = *rthp) != NULL) {
-		if (rth->rt_genid != atomic_read(&rt_genid)) {
+		if (rt_is_expired(rth)) {
 			*rthp = rth->u.dst.rt_next;
 			rt_free(rth);
 			continue;
@@ -1140,7 +1177,7 @@ static void rt_del(unsigned hash, struct rtable *rt)
 	spin_lock_bh(rt_hash_lock_addr(hash));
 	ip_rt_put(rt);
 	while ((aux = *rthp) != NULL) {
-		if (aux == rt || (aux->rt_genid != atomic_read(&rt_genid))) {
+		if (aux == rt || rt_is_expired(aux)) {
 			*rthp = aux->u.dst.rt_next;
 			rt_free(aux);
 			continue;
@@ -1182,7 +1219,8 @@ void ip_rt_redirect(__be32 old_gw, __be32 daddr, __be32 new_gw,
 
 	for (i = 0; i < 2; i++) {
 		for (k = 0; k < 2; k++) {
-			unsigned hash = rt_hash(daddr, skeys[i], ikeys[k]);
+			unsigned hash = rt_hash(daddr, skeys[i], ikeys[k],
+						rt_genid(net));
 
 			rthp=&rt_hash_table[hash].chain;
 
@@ -1194,7 +1232,7 @@ 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) ||
+				    rt_is_expired(rth) ||
 				    !net_eq(dev_net(rth->u.dst.dev), net)) {
 					rthp = &rth->u.dst.rt_next;
 					continue;
@@ -1233,7 +1271,7 @@ void ip_rt_redirect(__be32 old_gw, __be32 daddr, __be32 new_gw,
 				rt->u.dst.neighbour	= NULL;
 				rt->u.dst.hh		= NULL;
 				rt->u.dst.xfrm		= NULL;
-				rt->rt_genid		= atomic_read(&rt_genid);
+				rt->rt_genid		= rt_genid(net);
 				rt->rt_flags		|= RTCF_REDIRECTED;
 
 				/* Gateway is different ... */
@@ -1297,7 +1335,8 @@ static struct dst_entry *ipv4_negative_advice(struct dst_entry *dst)
 		} else if ((rt->rt_flags & RTCF_REDIRECTED) ||
 			   rt->u.dst.expires) {
 			unsigned hash = rt_hash(rt->fl.fl4_dst, rt->fl.fl4_src,
-						rt->fl.oif);
+						rt->fl.oif,
+						rt_genid(dev_net(dst->dev)));
 #if RT_CACHE_DEBUG >= 1
 			printk(KERN_DEBUG "ipv4_negative_advice: redirect to "
 					  NIPQUAD_FMT "/%02x dropped\n",
@@ -1390,7 +1429,8 @@ static int ip_error(struct sk_buff *skb)
 			break;
 		case ENETUNREACH:
 			code = ICMP_NET_UNREACH;
-			IP_INC_STATS_BH(IPSTATS_MIB_INNOROUTES);
+			IP_INC_STATS_BH(dev_net(rt->u.dst.dev),
+					IPSTATS_MIB_INNOROUTES);
 			break;
 		case EACCES:
 			code = ICMP_PKT_FILTERED;
@@ -1446,7 +1486,8 @@ unsigned short ip_rt_frag_needed(struct net *net, struct iphdr *iph,
 
 	for (k = 0; k < 2; k++) {
 		for (i = 0; i < 2; i++) {
-			unsigned hash = rt_hash(daddr, skeys[i], ikeys[k]);
+			unsigned hash = rt_hash(daddr, skeys[i], ikeys[k],
+						rt_genid(net));
 
 			rcu_read_lock();
 			for (rth = rcu_dereference(rt_hash_table[hash].chain); rth;
@@ -1461,7 +1502,7 @@ unsigned short ip_rt_frag_needed(struct net *net, struct iphdr *iph,
 				    rth->fl.iif != 0 ||
 				    dst_metric_locked(&rth->u.dst, RTAX_MTU) ||
 				    !net_eq(dev_net(rth->u.dst.dev), net) ||
-				    rth->rt_genid != atomic_read(&rt_genid))
+				    !rt_is_expired(rth))
 					continue;
 
 				if (new_mtu < 68 || new_mtu >= old_mtu) {
@@ -1696,7 +1737,7 @@ static int ip_route_input_mc(struct sk_buff *skb, __be32 daddr, __be32 saddr,
 	rth->fl.oif	= 0;
 	rth->rt_gateway	= daddr;
 	rth->rt_spec_dst= spec_dst;
-	rth->rt_genid	= atomic_read(&rt_genid);
+	rth->rt_genid	= rt_genid(dev_net(dev));
 	rth->rt_flags	= RTCF_MULTICAST;
 	rth->rt_type	= RTN_MULTICAST;
 	if (our) {
@@ -1711,7 +1752,7 @@ static int ip_route_input_mc(struct sk_buff *skb, __be32 daddr, __be32 saddr,
 	RT_CACHE_STAT_INC(in_slow_mc);
 
 	in_dev_put(in_dev);
-	hash = rt_hash(daddr, saddr, dev->ifindex);
+	hash = rt_hash(daddr, saddr, dev->ifindex, rt_genid(dev_net(dev)));
 	return rt_intern_hash(hash, rth, &skb->rtable);
 
 e_nobufs:
@@ -1837,7 +1878,7 @@ static int __mkroute_input(struct sk_buff *skb,
 
 	rth->u.dst.input = ip_forward;
 	rth->u.dst.output = ip_output;
-	rth->rt_genid = atomic_read(&rt_genid);
+	rth->rt_genid = rt_genid(dev_net(rth->u.dst.dev));
 
 	rt_set_nexthop(rth, res, itag);
 
@@ -1872,7 +1913,8 @@ static int ip_mkroute_input(struct sk_buff *skb,
 		return err;
 
 	/* put it into the cache */
-	hash = rt_hash(daddr, saddr, fl->iif);
+	hash = rt_hash(daddr, saddr, fl->iif,
+		       rt_genid(dev_net(rth->u.dst.dev)));
 	return rt_intern_hash(hash, rth, &skb->rtable);
 }
 
@@ -1998,7 +2040,7 @@ local_input:
 		goto e_nobufs;
 
 	rth->u.dst.output= ip_rt_bug;
-	rth->rt_genid = atomic_read(&rt_genid);
+	rth->rt_genid = rt_genid(net);
 
 	atomic_set(&rth->u.dst.__refcnt, 1);
 	rth->u.dst.flags= DST_HOST;
@@ -2028,7 +2070,7 @@ local_input:
 		rth->rt_flags 	&= ~RTCF_LOCAL;
 	}
 	rth->rt_type	= res.type;
-	hash = rt_hash(daddr, saddr, fl.iif);
+	hash = rt_hash(daddr, saddr, fl.iif, rt_genid(net));
 	err = rt_intern_hash(hash, rth, &skb->rtable);
 	goto done;
 
@@ -2079,7 +2121,7 @@ int ip_route_input(struct sk_buff *skb, __be32 daddr, __be32 saddr,
 
 	net = dev_net(dev);
 	tos &= IPTOS_RT_MASK;
-	hash = rt_hash(daddr, saddr, iif);
+	hash = rt_hash(daddr, saddr, iif, rt_genid(net));
 
 	rcu_read_lock();
 	for (rth = rcu_dereference(rt_hash_table[hash].chain); rth;
@@ -2091,7 +2133,7 @@ int ip_route_input(struct sk_buff *skb, __be32 daddr, __be32 saddr,
 		     (rth->fl.fl4_tos ^ tos)) == 0 &&
 		    rth->fl.mark == skb->mark &&
 		    net_eq(dev_net(rth->u.dst.dev), net) &&
-		    rth->rt_genid == atomic_read(&rt_genid)) {
+		    !rt_is_expired(rth)) {
 			dst_use(&rth->u.dst, jiffies);
 			RT_CACHE_STAT_INC(in_hit);
 			rcu_read_unlock();
@@ -2219,7 +2261,7 @@ static int __mkroute_output(struct rtable **result,
 	rth->rt_spec_dst= fl->fl4_src;
 
 	rth->u.dst.output=ip_output;
-	rth->rt_genid = atomic_read(&rt_genid);
+	rth->rt_genid = rt_genid(dev_net(dev_out));
 
 	RT_CACHE_STAT_INC(out_slow_tot);
 
@@ -2268,7 +2310,8 @@ static int ip_mkroute_output(struct rtable **rp,
 	int err = __mkroute_output(&rth, res, fl, oldflp, dev_out, flags);
 	unsigned hash;
 	if (err == 0) {
-		hash = rt_hash(oldflp->fl4_dst, oldflp->fl4_src, oldflp->oif);
+		hash = rt_hash(oldflp->fl4_dst, oldflp->fl4_src, oldflp->oif,
+			       rt_genid(dev_net(dev_out)));
 		err = rt_intern_hash(hash, rth, rp);
 	}
 
@@ -2480,7 +2523,7 @@ int __ip_route_output_key(struct net *net, struct rtable **rp,
 	unsigned hash;
 	struct rtable *rth;
 
-	hash = rt_hash(flp->fl4_dst, flp->fl4_src, flp->oif);
+	hash = rt_hash(flp->fl4_dst, flp->fl4_src, flp->oif, rt_genid(net));
 
 	rcu_read_lock_bh();
 	for (rth = rcu_dereference(rt_hash_table[hash].chain); rth;
@@ -2493,7 +2536,7 @@ int __ip_route_output_key(struct net *net, struct rtable **rp,
 		    !((rth->fl.fl4_tos ^ flp->fl4_tos) &
 			    (IPTOS_RT_MASK | RTO_ONLINK)) &&
 		    net_eq(dev_net(rth->u.dst.dev), net) &&
-		    rth->rt_genid == atomic_read(&rt_genid)) {
+		    !rt_is_expired(rth)) {
 			dst_use(&rth->u.dst, jiffies);
 			RT_CACHE_STAT_INC(out_hit);
 			rcu_read_unlock_bh();
@@ -2524,7 +2567,7 @@ static struct dst_ops ipv4_dst_blackhole_ops = {
 };
 
 
-static int ipv4_dst_blackhole(struct rtable **rp, struct flowi *flp)
+static int ipv4_dst_blackhole(struct net *net, struct rtable **rp, struct flowi *flp)
 {
 	struct rtable *ort = *rp;
 	struct rtable *rt = (struct rtable *)
@@ -2548,7 +2591,7 @@ static int ipv4_dst_blackhole(struct rtable **rp, struct flowi *flp)
 		rt->idev = ort->idev;
 		if (rt->idev)
 			in_dev_hold(rt->idev);
-		rt->rt_genid = atomic_read(&rt_genid);
+		rt->rt_genid = rt_genid(net);
 		rt->rt_flags = ort->rt_flags;
 		rt->rt_type = ort->rt_type;
 		rt->rt_dst = ort->rt_dst;
@@ -2584,7 +2627,7 @@ 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);
+			err = ipv4_dst_blackhole(net, rp, flp);
 
 		return err;
 	}
@@ -2803,7 +2846,7 @@ int ip_rt_dump(struct sk_buff *skb,  struct netlink_callback *cb)
 		     rt = rcu_dereference(rt->u.dst.rt_next), idx++) {
 			if (!net_eq(dev_net(rt->u.dst.dev), net) || idx < s_idx)
 				continue;
-			if (rt->rt_genid != atomic_read(&rt_genid))
+			if (rt_is_expired(rt))
 				continue;
 			skb->dst = dst_clone(&rt->u.dst);
 			if (rt_fill_info(skb, NETLINK_CB(cb->skb).pid,
@@ -2827,19 +2870,25 @@ done:
 
 void ip_rt_multicast_event(struct in_device *in_dev)
 {
-	rt_cache_flush(0);
+	rt_cache_flush(dev_net(in_dev->dev), 0);
 }
 
 #ifdef CONFIG_SYSCTL
-static int flush_delay;
-
-static int ipv4_sysctl_rtcache_flush(ctl_table *ctl, int write,
+static int ipv4_sysctl_rtcache_flush(ctl_table *__ctl, int write,
 					struct file *filp, void __user *buffer,
 					size_t *lenp, loff_t *ppos)
 {
 	if (write) {
-		proc_dointvec(ctl, write, filp, buffer, lenp, ppos);
-		rt_cache_flush(flush_delay);
+		int flush_delay;
+		ctl_table ctl;
+		struct net *net;
+
+		memcpy(&ctl, __ctl, sizeof(ctl));
+		ctl.data = &flush_delay;
+		proc_dointvec(&ctl, write, filp, buffer, lenp, ppos);
+
+		net = (struct net *)__ctl->extra1;
+		rt_cache_flush(net, flush_delay);
 		return 0;
 	}
 
@@ -2855,25 +2904,18 @@ static int ipv4_sysctl_rtcache_flush_strategy(ctl_table *table,
 						size_t newlen)
 {
 	int delay;
+	struct net *net;
 	if (newlen != sizeof(int))
 		return -EINVAL;
 	if (get_user(delay, (int __user *)newval))
 		return -EFAULT;
-	rt_cache_flush(delay);
+	net = (struct net *)table->extra1;
+	rt_cache_flush(net, delay);
 	return 0;
 }
 
 ctl_table ipv4_route_table[] = {
 	{
-		.ctl_name 	= NET_IPV4_ROUTE_FLUSH,
-		.procname	= "flush",
-		.data		= &flush_delay,
-		.maxlen		= sizeof(int),
-		.mode		= 0200,
-		.proc_handler	= &ipv4_sysctl_rtcache_flush,
-		.strategy	= &ipv4_sysctl_rtcache_flush_strategy,
-	},
-	{
 		.ctl_name	= NET_IPV4_ROUTE_GC_THRESH,
 		.procname	= "gc_thresh",
 		.data		= &ipv4_dst_ops.gc_thresh,
@@ -3011,8 +3053,97 @@ ctl_table ipv4_route_table[] = {
 	},
 	{ .ctl_name = 0 }
 };
+
+static __net_initdata struct ctl_path ipv4_route_path[] = {
+	{ .procname = "net", .ctl_name = CTL_NET, },
+	{ .procname = "ipv4", .ctl_name = NET_IPV4, },
+	{ .procname = "route", .ctl_name = NET_IPV4_ROUTE, },
+	{ },
+};
+
+
+static struct ctl_table ipv4_route_flush_table[] = {
+	{
+		.ctl_name 	= NET_IPV4_ROUTE_FLUSH,
+		.procname	= "flush",
+		.maxlen		= sizeof(int),
+		.mode		= 0200,
+		.proc_handler	= &ipv4_sysctl_rtcache_flush,
+		.strategy	= &ipv4_sysctl_rtcache_flush_strategy,
+	},
+	{ .ctl_name = 0 },
+};
+
+static __net_init int sysctl_route_net_init(struct net *net)
+{
+	struct ctl_table *tbl;
+
+	tbl = ipv4_route_flush_table;
+	if (net != &init_net) {
+		tbl = kmemdup(tbl, sizeof(ipv4_route_flush_table), GFP_KERNEL);
+		if (tbl == NULL)
+			goto err_dup;
+	}
+	tbl[0].extra1 = net;
+
+	net->ipv4.route_hdr =
+		register_net_sysctl_table(net, ipv4_route_path, tbl);
+	if (net->ipv4.route_hdr == NULL)
+		goto err_reg;
+	return 0;
+
+err_reg:
+	if (tbl != ipv4_route_flush_table)
+		kfree(tbl);
+err_dup:
+	return -ENOMEM;
+}
+
+static __net_exit void sysctl_route_net_exit(struct net *net)
+{
+	struct ctl_table *tbl;
+
+	tbl = net->ipv4.route_hdr->ctl_table_arg;
+	unregister_net_sysctl_table(net->ipv4.route_hdr);
+	BUG_ON(tbl == ipv4_route_flush_table);
+	kfree(tbl);
+}
+
+static __net_initdata struct pernet_operations sysctl_route_ops = {
+	.init = sysctl_route_net_init,
+	.exit = sysctl_route_net_exit,
+};
 #endif
 
+
+static __net_init int rt_secret_timer_init(struct net *net)
+{
+	atomic_set(&net->ipv4.rt_genid,
+			(int) ((num_physpages ^ (num_physpages>>8)) ^
+			(jiffies ^ (jiffies >> 7))));
+
+	net->ipv4.rt_secret_timer.function = rt_secret_rebuild;
+	net->ipv4.rt_secret_timer.data = (unsigned long)net;
+	init_timer_deferrable(&net->ipv4.rt_secret_timer);
+
+	net->ipv4.rt_secret_timer.expires =
+		jiffies + net_random() % ip_rt_secret_interval +
+		ip_rt_secret_interval;
+	add_timer(&net->ipv4.rt_secret_timer);
+	return 0;
+}
+
+static __net_exit void rt_secret_timer_exit(struct net *net)
+{
+	del_timer_sync(&net->ipv4.rt_secret_timer);
+}
+
+static __net_initdata struct pernet_operations rt_secret_timer_ops = {
+	.init = rt_secret_timer_init,
+	.exit = rt_secret_timer_exit,
+};
+
+
 #ifdef CONFIG_NET_CLS_ROUTE
 struct ip_rt_acct *ip_rt_acct __read_mostly;
 #endif /* CONFIG_NET_CLS_ROUTE */
@@ -3031,9 +3162,6 @@ int __init ip_rt_init(void)
 {
 	int rc = 0;
 
-	atomic_set(&rt_genid, (int) ((num_physpages ^ (num_physpages>>8)) ^
-			     (jiffies ^ (jiffies >> 7))));
-
 #ifdef CONFIG_NET_CLS_ROUTE
 	ip_rt_acct = __alloc_percpu(256 * sizeof(struct ip_rt_acct));
 	if (!ip_rt_acct)
@@ -3065,19 +3193,14 @@ int __init ip_rt_init(void)
 	devinet_init();
 	ip_fib_init();
 
-	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.
 	 */
 	schedule_delayed_work(&expires_work,
 		net_random() % ip_rt_gc_interval + ip_rt_gc_interval);
 
-	rt_secret_timer.expires = jiffies + net_random() % ip_rt_secret_interval +
-		ip_rt_secret_interval;
-	add_timer(&rt_secret_timer);
+	if (register_pernet_subsys(&rt_secret_timer_ops))
+		printk(KERN_ERR "Unable to setup rt_secret_timer\n");
 
 	if (ip_rt_proc_init())
 		printk(KERN_ERR "Unable to create route proc files\n");
@@ -3087,6 +3210,9 @@ int __init ip_rt_init(void)
 #endif
 	rtnl_register(PF_INET, RTM_GETROUTE, inet_rtm_getroute, NULL);
 
+#ifdef CONFIG_SYSCTL
+	register_pernet_subsys(&sysctl_route_ops);
+#endif
 	return rc;
 }
 
diff --git a/net/ipv4/syncookies.c b/net/ipv4/syncookies.c
index d182a2a2629..51bc24d3b8a 100644
--- a/net/ipv4/syncookies.c
+++ b/net/ipv4/syncookies.c
@@ -8,8 +8,6 @@
  *      modify it under the terms of the GNU General Public License
  *      as published by the Free Software Foundation; either version
  *      2 of the License, or (at your option) any later version.
- *
- *  $Id: syncookies.c,v 1.18 2002/02/01 22:01:04 davem Exp $
  */
 
 #include <linux/tcp.h>
@@ -175,7 +173,7 @@ __u32 cookie_v4_init_sequence(struct sock *sk, struct sk_buff *skb, __u16 *mssp)
 		;
 	*mssp = msstab[mssind] + 1;
 
-	NET_INC_STATS_BH(LINUX_MIB_SYNCOOKIESSENT);
+	NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_SYNCOOKIESSENT);
 
 	return secure_tcp_syn_cookie(iph->saddr, iph->daddr,
 				     th->source, th->dest, ntohl(th->seq),
@@ -271,11 +269,11 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb,
 
 	if (time_after(jiffies, tp->last_synq_overflow + TCP_TIMEOUT_INIT) ||
 	    (mss = cookie_check(skb, cookie)) == 0) {
-		NET_INC_STATS_BH(LINUX_MIB_SYNCOOKIESFAILED);
+		NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_SYNCOOKIESFAILED);
 		goto out;
 	}
 
-	NET_INC_STATS_BH(LINUX_MIB_SYNCOOKIESRECV);
+	NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_SYNCOOKIESRECV);
 
 	/* check for timestamp cookie support */
 	memset(&tcp_opt, 0, sizeof(tcp_opt));
diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
index c437f804ee3..14ef202a225 100644
--- a/net/ipv4/sysctl_net_ipv4.c
+++ b/net/ipv4/sysctl_net_ipv4.c
@@ -1,8 +1,6 @@
 /*
  * sysctl_net_ipv4.c: sysctl interface to net IPV4 subsystem.
  *
- * $Id: sysctl_net_ipv4.c,v 1.50 2001/10/20 00:00:11 davem Exp $
- *
  * Begun April 1, 1996, Mike Shaver.
  * Added /proc/sys/net/ipv4 directory entry (empty =) ). [MS]
  */
@@ -795,7 +793,8 @@ static struct ctl_table ipv4_net_table[] = {
 		.data		= &init_net.ipv4.sysctl_icmp_ratelimit,
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
-		.proc_handler	= &proc_dointvec
+		.proc_handler	= &proc_dointvec_ms_jiffies,
+		.strategy	= &sysctl_ms_jiffies
 	},
 	{
 		.ctl_name	= NET_IPV4_ICMP_RATEMASK,
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 1d723de1868..0b491bf03db 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -5,8 +5,6 @@
  *
  *		Implementation of the Transmission Control Protocol(TCP).
  *
- * Version:	$Id: tcp.c,v 1.216 2002/02/01 22:01:04 davem Exp $
- *
  * Authors:	Ross Biro
  *		Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
  *		Mark Evans, <evansmp@uhura.aston.ac.uk>
@@ -279,8 +277,6 @@
 
 int sysctl_tcp_fin_timeout __read_mostly = TCP_FIN_TIMEOUT;
 
-DEFINE_SNMP_STAT(struct tcp_mib, tcp_statistics) __read_mostly;
-
 atomic_t tcp_orphan_count = ATOMIC_INIT(0);
 
 EXPORT_SYMBOL_GPL(tcp_orphan_count);
@@ -318,10 +314,10 @@ int tcp_memory_pressure __read_mostly;
 
 EXPORT_SYMBOL(tcp_memory_pressure);
 
-void tcp_enter_memory_pressure(void)
+void tcp_enter_memory_pressure(struct sock *sk)
 {
 	if (!tcp_memory_pressure) {
-		NET_INC_STATS(LINUX_MIB_TCPMEMORYPRESSURES);
+		NET_INC_STATS(sock_net(sk), LINUX_MIB_TCPMEMORYPRESSURES);
 		tcp_memory_pressure = 1;
 	}
 }
@@ -346,8 +342,8 @@ unsigned int tcp_poll(struct file *file, struct socket *sock, poll_table *wait)
 		return inet_csk_listen_poll(sk);
 
 	/* Socket is not locked. We are protected from async events
-	   by poll logic and correct handling of state changes
-	   made by another threads is impossible in any case.
+	 * by poll logic and correct handling of state changes
+	 * made by other threads is impossible in any case.
 	 */
 
 	mask = 0;
@@ -373,10 +369,10 @@ unsigned int tcp_poll(struct file *file, struct socket *sock, poll_table *wait)
 	 * in state CLOSE_WAIT. One solution is evident --- to set POLLHUP
 	 * if and only if shutdown has been made in both directions.
 	 * Actually, it is interesting to look how Solaris and DUX
-	 * solve this dilemma. I would prefer, if PULLHUP were maskable,
+	 * solve this dilemma. I would prefer, if POLLHUP were maskable,
 	 * then we could set it on SND_SHUTDOWN. BTW examples given
 	 * in Stevens' books assume exactly this behaviour, it explains
-	 * why PULLHUP is incompatible with POLLOUT.	--ANK
+	 * why POLLHUP is incompatible with POLLOUT.	--ANK
 	 *
 	 * NOTE. Check for TCP_CLOSE is added. The goal is to prevent
 	 * blocking on fresh not-connected or disconnected socket. --ANK
@@ -651,7 +647,7 @@ struct sk_buff *sk_stream_alloc_skb(struct sock *sk, int size, gfp_t gfp)
 		}
 		__kfree_skb(skb);
 	} else {
-		sk->sk_prot->enter_memory_pressure();
+		sk->sk_prot->enter_memory_pressure(sk);
 		sk_stream_moderate_sndbuf(sk);
 	}
 	return NULL;
@@ -1155,7 +1151,7 @@ static void tcp_prequeue_process(struct sock *sk)
 	struct sk_buff *skb;
 	struct tcp_sock *tp = tcp_sk(sk);
 
-	NET_INC_STATS_USER(LINUX_MIB_TCPPREQUEUED);
+	NET_INC_STATS_USER(sock_net(sk), LINUX_MIB_TCPPREQUEUED);
 
 	/* RX process wants to run with disabled BHs, though it is not
 	 * necessary */
@@ -1477,7 +1473,7 @@ int tcp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 			/* __ Restore normal policy in scheduler __ */
 
 			if ((chunk = len - tp->ucopy.len) != 0) {
-				NET_ADD_STATS_USER(LINUX_MIB_TCPDIRECTCOPYFROMBACKLOG, chunk);
+				NET_ADD_STATS_USER(sock_net(sk), LINUX_MIB_TCPDIRECTCOPYFROMBACKLOG, chunk);
 				len -= chunk;
 				copied += chunk;
 			}
@@ -1488,7 +1484,7 @@ do_prequeue:
 				tcp_prequeue_process(sk);
 
 				if ((chunk = len - tp->ucopy.len) != 0) {
-					NET_ADD_STATS_USER(LINUX_MIB_TCPDIRECTCOPYFROMPREQUEUE, chunk);
+					NET_ADD_STATS_USER(sock_net(sk), LINUX_MIB_TCPDIRECTCOPYFROMPREQUEUE, chunk);
 					len -= chunk;
 					copied += chunk;
 				}
@@ -1603,7 +1599,7 @@ skip_copy:
 			tcp_prequeue_process(sk);
 
 			if (copied > 0 && (chunk = len - tp->ucopy.len) != 0) {
-				NET_ADD_STATS_USER(LINUX_MIB_TCPDIRECTCOPYFROMPREQUEUE, chunk);
+				NET_ADD_STATS_USER(sock_net(sk), LINUX_MIB_TCPDIRECTCOPYFROMPREQUEUE, chunk);
 				len -= chunk;
 				copied += chunk;
 			}
@@ -1670,12 +1666,12 @@ void tcp_set_state(struct sock *sk, int state)
 	switch (state) {
 	case TCP_ESTABLISHED:
 		if (oldstate != TCP_ESTABLISHED)
-			TCP_INC_STATS(TCP_MIB_CURRESTAB);
+			TCP_INC_STATS(sock_net(sk), TCP_MIB_CURRESTAB);
 		break;
 
 	case TCP_CLOSE:
 		if (oldstate == TCP_CLOSE_WAIT || oldstate == TCP_ESTABLISHED)
-			TCP_INC_STATS(TCP_MIB_ESTABRESETS);
+			TCP_INC_STATS(sock_net(sk), TCP_MIB_ESTABRESETS);
 
 		sk->sk_prot->unhash(sk);
 		if (inet_csk(sk)->icsk_bind_hash &&
@@ -1684,7 +1680,7 @@ void tcp_set_state(struct sock *sk, int state)
 		/* fall through */
 	default:
 		if (oldstate==TCP_ESTABLISHED)
-			TCP_DEC_STATS(TCP_MIB_CURRESTAB);
+			TCP_DEC_STATS(sock_net(sk), TCP_MIB_CURRESTAB);
 	}
 
 	/* Change state AFTER socket is unhashed to avoid closed
@@ -1795,13 +1791,13 @@ void tcp_close(struct sock *sk, long timeout)
 	 */
 	if (data_was_unread) {
 		/* Unread data was tossed, zap the connection. */
-		NET_INC_STATS_USER(LINUX_MIB_TCPABORTONCLOSE);
+		NET_INC_STATS_USER(sock_net(sk), LINUX_MIB_TCPABORTONCLOSE);
 		tcp_set_state(sk, TCP_CLOSE);
 		tcp_send_active_reset(sk, GFP_KERNEL);
 	} else if (sock_flag(sk, SOCK_LINGER) && !sk->sk_lingertime) {
 		/* Check zero linger _after_ checking for unread data. */
 		sk->sk_prot->disconnect(sk, 0);
-		NET_INC_STATS_USER(LINUX_MIB_TCPABORTONDATA);
+		NET_INC_STATS_USER(sock_net(sk), LINUX_MIB_TCPABORTONDATA);
 	} else if (tcp_close_state(sk)) {
 		/* We FIN if the application ate all the data before
 		 * zapping the connection.
@@ -1873,7 +1869,8 @@ adjudge_to_death:
 		if (tp->linger2 < 0) {
 			tcp_set_state(sk, TCP_CLOSE);
 			tcp_send_active_reset(sk, GFP_ATOMIC);
-			NET_INC_STATS_BH(LINUX_MIB_TCPABORTONLINGER);
+			NET_INC_STATS_BH(sock_net(sk),
+					LINUX_MIB_TCPABORTONLINGER);
 		} else {
 			const int tmo = tcp_fin_time(sk);
 
@@ -1895,7 +1892,8 @@ adjudge_to_death:
 				       "sockets\n");
 			tcp_set_state(sk, TCP_CLOSE);
 			tcp_send_active_reset(sk, GFP_ATOMIC);
-			NET_INC_STATS_BH(LINUX_MIB_TCPABORTONMEMORY);
+			NET_INC_STATS_BH(sock_net(sk),
+					LINUX_MIB_TCPABORTONMEMORY);
 		}
 	}
 
@@ -2590,12 +2588,69 @@ void __tcp_put_md5sig_pool(void)
 }
 
 EXPORT_SYMBOL(__tcp_put_md5sig_pool);
+
+int tcp_md5_hash_header(struct tcp_md5sig_pool *hp,
+			struct tcphdr *th)
+{
+	struct scatterlist sg;
+	int err;
+
+	__sum16 old_checksum = th->check;
+	th->check = 0;
+	/* options aren't included in the hash */
+	sg_init_one(&sg, th, sizeof(struct tcphdr));
+	err = crypto_hash_update(&hp->md5_desc, &sg, sizeof(struct tcphdr));
+	th->check = old_checksum;
+	return err;
+}
+
+EXPORT_SYMBOL(tcp_md5_hash_header);
+
+int tcp_md5_hash_skb_data(struct tcp_md5sig_pool *hp,
+			  struct sk_buff *skb, unsigned header_len)
+{
+	struct scatterlist sg;
+	const struct tcphdr *tp = tcp_hdr(skb);
+	struct hash_desc *desc = &hp->md5_desc;
+	unsigned i;
+	const unsigned head_data_len = skb_headlen(skb) > header_len ?
+				       skb_headlen(skb) - header_len : 0;
+	const struct skb_shared_info *shi = skb_shinfo(skb);
+
+	sg_init_table(&sg, 1);
+
+	sg_set_buf(&sg, ((u8 *) tp) + header_len, head_data_len);
+	if (crypto_hash_update(desc, &sg, head_data_len))
+		return 1;
+
+	for (i = 0; i < shi->nr_frags; ++i) {
+		const struct skb_frag_struct *f = &shi->frags[i];
+		sg_set_page(&sg, f->page, f->size, f->page_offset);
+		if (crypto_hash_update(desc, &sg, f->size))
+			return 1;
+	}
+
+	return 0;
+}
+
+EXPORT_SYMBOL(tcp_md5_hash_skb_data);
+
+int tcp_md5_hash_key(struct tcp_md5sig_pool *hp, struct tcp_md5sig_key *key)
+{
+	struct scatterlist sg;
+
+	sg_init_one(&sg, key->key, key->keylen);
+	return crypto_hash_update(&hp->md5_desc, &sg, key->keylen);
+}
+
+EXPORT_SYMBOL(tcp_md5_hash_key);
+
 #endif
 
 void tcp_done(struct sock *sk)
 {
 	if(sk->sk_state == TCP_SYN_SENT || sk->sk_state == TCP_SYN_RECV)
-		TCP_INC_STATS_BH(TCP_MIB_ATTEMPTFAILS);
+		TCP_INC_STATS_BH(sock_net(sk), TCP_MIB_ATTEMPTFAILS);
 
 	tcp_set_state(sk, TCP_CLOSE);
 	tcp_clear_xmit_timers(sk);
@@ -2732,4 +2787,3 @@ EXPORT_SYMBOL(tcp_splice_read);
 EXPORT_SYMBOL(tcp_sendpage);
 EXPORT_SYMBOL(tcp_setsockopt);
 EXPORT_SYMBOL(tcp_shutdown);
-EXPORT_SYMBOL(tcp_statistics);
diff --git a/net/ipv4/tcp_diag.c b/net/ipv4/tcp_diag.c
index 2fbcc7d1b1a..838d491dfda 100644
--- a/net/ipv4/tcp_diag.c
+++ b/net/ipv4/tcp_diag.c
@@ -1,8 +1,6 @@
 /*
  * tcp_diag.c	Module for monitoring TCP transport protocols sockets.
  *
- * Version:	$Id: tcp_diag.c,v 1.3 2002/02/01 22:01:04 davem Exp $
- *
  * Authors:	Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
  *
  *	This program is free software; you can redistribute it and/or
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index cad73b7dfef..1f5e6049883 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -5,8 +5,6 @@
  *
  *		Implementation of the Transmission Control Protocol(TCP).
  *
- * Version:	$Id: tcp_input.c,v 1.243 2002/02/01 22:01:04 davem Exp $
- *
  * Authors:	Ross Biro
  *		Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
  *		Mark Evans, <evansmp@uhura.aston.ac.uk>
@@ -604,7 +602,7 @@ static u32 tcp_rto_min(struct sock *sk)
 	u32 rto_min = TCP_RTO_MIN;
 
 	if (dst && dst_metric_locked(dst, RTAX_RTO_MIN))
-		rto_min = dst_metric(dst, RTAX_RTO_MIN);
+		rto_min = dst_metric_rtt(dst, RTAX_RTO_MIN);
 	return rto_min;
 }
 
@@ -731,6 +729,7 @@ void tcp_update_metrics(struct sock *sk)
 	if (dst && (dst->flags & DST_HOST)) {
 		const struct inet_connection_sock *icsk = inet_csk(sk);
 		int m;
+		unsigned long rtt;
 
 		if (icsk->icsk_backoff || !tp->srtt) {
 			/* This session failed to estimate rtt. Why?
@@ -742,7 +741,8 @@ void tcp_update_metrics(struct sock *sk)
 			return;
 		}
 
-		m = dst_metric(dst, RTAX_RTT) - tp->srtt;
+		rtt = dst_metric_rtt(dst, RTAX_RTT);
+		m = rtt - tp->srtt;
 
 		/* If newly calculated rtt larger than stored one,
 		 * store new one. Otherwise, use EWMA. Remember,
@@ -750,12 +750,13 @@ void tcp_update_metrics(struct sock *sk)
 		 */
 		if (!(dst_metric_locked(dst, RTAX_RTT))) {
 			if (m <= 0)
-				dst->metrics[RTAX_RTT - 1] = tp->srtt;
+				set_dst_metric_rtt(dst, RTAX_RTT, tp->srtt);
 			else
-				dst->metrics[RTAX_RTT - 1] -= (m >> 3);
+				set_dst_metric_rtt(dst, RTAX_RTT, rtt - (m >> 3));
 		}
 
 		if (!(dst_metric_locked(dst, RTAX_RTTVAR))) {
+			unsigned long var;
 			if (m < 0)
 				m = -m;
 
@@ -764,11 +765,13 @@ void tcp_update_metrics(struct sock *sk)
 			if (m < tp->mdev)
 				m = tp->mdev;
 
-			if (m >= dst_metric(dst, RTAX_RTTVAR))
-				dst->metrics[RTAX_RTTVAR - 1] = m;
+			var = dst_metric_rtt(dst, RTAX_RTTVAR);
+			if (m >= var)
+				var = m;
 			else
-				dst->metrics[RTAX_RTTVAR-1] -=
-					(dst_metric(dst, RTAX_RTTVAR) - m)>>2;
+				var -= (var - m) >> 2;
+
+			set_dst_metric_rtt(dst, RTAX_RTTVAR, var);
 		}
 
 		if (tp->snd_ssthresh >= 0xFFFF) {
@@ -899,7 +902,7 @@ static void tcp_init_metrics(struct sock *sk)
 	if (dst_metric(dst, RTAX_RTT) == 0)
 		goto reset;
 
-	if (!tp->srtt && dst_metric(dst, RTAX_RTT) < (TCP_TIMEOUT_INIT << 3))
+	if (!tp->srtt && dst_metric_rtt(dst, RTAX_RTT) < (TCP_TIMEOUT_INIT << 3))
 		goto reset;
 
 	/* Initial rtt is determined from SYN,SYN-ACK.
@@ -916,12 +919,12 @@ static void tcp_init_metrics(struct sock *sk)
 	 * to low value, and then abruptly stops to do it and starts to delay
 	 * ACKs, wait for troubles.
 	 */
-	if (dst_metric(dst, RTAX_RTT) > tp->srtt) {
-		tp->srtt = dst_metric(dst, RTAX_RTT);
+	if (dst_metric_rtt(dst, RTAX_RTT) > tp->srtt) {
+		tp->srtt = dst_metric_rtt(dst, RTAX_RTT);
 		tp->rtt_seq = tp->snd_nxt;
 	}
-	if (dst_metric(dst, RTAX_RTTVAR) > tp->mdev) {
-		tp->mdev = dst_metric(dst, RTAX_RTTVAR);
+	if (dst_metric_rtt(dst, RTAX_RTTVAR) > tp->mdev) {
+		tp->mdev = dst_metric_rtt(dst, RTAX_RTTVAR);
 		tp->mdev_max = tp->rttvar = max(tp->mdev, tcp_rto_min(sk));
 	}
 	tcp_set_rto(sk);
@@ -949,17 +952,21 @@ static void tcp_update_reordering(struct sock *sk, const int metric,
 {
 	struct tcp_sock *tp = tcp_sk(sk);
 	if (metric > tp->reordering) {
+		int mib_idx;
+
 		tp->reordering = min(TCP_MAX_REORDERING, metric);
 
 		/* This exciting event is worth to be remembered. 8) */
 		if (ts)
-			NET_INC_STATS_BH(LINUX_MIB_TCPTSREORDER);
+			mib_idx = LINUX_MIB_TCPTSREORDER;
 		else if (tcp_is_reno(tp))
-			NET_INC_STATS_BH(LINUX_MIB_TCPRENOREORDER);
+			mib_idx = LINUX_MIB_TCPRENOREORDER;
 		else if (tcp_is_fack(tp))
-			NET_INC_STATS_BH(LINUX_MIB_TCPFACKREORDER);
+			mib_idx = LINUX_MIB_TCPFACKREORDER;
 		else
-			NET_INC_STATS_BH(LINUX_MIB_TCPSACKREORDER);
+			mib_idx = LINUX_MIB_TCPSACKREORDER;
+
+		NET_INC_STATS_BH(sock_net(sk), mib_idx);
 #if FASTRETRANS_DEBUG > 1
 		printk(KERN_DEBUG "Disorder%d %d %u f%u s%u rr%d\n",
 		       tp->rx_opt.sack_ok, inet_csk(sk)->icsk_ca_state,
@@ -1155,7 +1162,7 @@ static void tcp_mark_lost_retrans(struct sock *sk)
 				tp->lost_out += tcp_skb_pcount(skb);
 				TCP_SKB_CB(skb)->sacked |= TCPCB_LOST;
 			}
-			NET_INC_STATS_BH(LINUX_MIB_TCPLOSTRETRANSMIT);
+			NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPLOSTRETRANSMIT);
 		} else {
 			if (before(ack_seq, new_low_seq))
 				new_low_seq = ack_seq;
@@ -1167,10 +1174,11 @@ static void tcp_mark_lost_retrans(struct sock *sk)
 		tp->lost_retrans_low = new_low_seq;
 }
 
-static int tcp_check_dsack(struct tcp_sock *tp, struct sk_buff *ack_skb,
+static int tcp_check_dsack(struct sock *sk, struct sk_buff *ack_skb,
 			   struct tcp_sack_block_wire *sp, int num_sacks,
 			   u32 prior_snd_una)
 {
+	struct tcp_sock *tp = tcp_sk(sk);
 	u32 start_seq_0 = get_unaligned_be32(&sp[0].start_seq);
 	u32 end_seq_0 = get_unaligned_be32(&sp[0].end_seq);
 	int dup_sack = 0;
@@ -1178,7 +1186,7 @@ static int tcp_check_dsack(struct tcp_sock *tp, struct sk_buff *ack_skb,
 	if (before(start_seq_0, TCP_SKB_CB(ack_skb)->ack_seq)) {
 		dup_sack = 1;
 		tcp_dsack_seen(tp);
-		NET_INC_STATS_BH(LINUX_MIB_TCPDSACKRECV);
+		NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPDSACKRECV);
 	} else if (num_sacks > 1) {
 		u32 end_seq_1 = get_unaligned_be32(&sp[1].end_seq);
 		u32 start_seq_1 = get_unaligned_be32(&sp[1].start_seq);
@@ -1187,7 +1195,8 @@ static int tcp_check_dsack(struct tcp_sock *tp, struct sk_buff *ack_skb,
 		    !before(start_seq_0, start_seq_1)) {
 			dup_sack = 1;
 			tcp_dsack_seen(tp);
-			NET_INC_STATS_BH(LINUX_MIB_TCPDSACKOFORECV);
+			NET_INC_STATS_BH(sock_net(sk),
+					LINUX_MIB_TCPDSACKOFORECV);
 		}
 	}
 
@@ -1414,10 +1423,10 @@ tcp_sacktag_write_queue(struct sock *sk, struct sk_buff *ack_skb,
 	unsigned char *ptr = (skb_transport_header(ack_skb) +
 			      TCP_SKB_CB(ack_skb)->sacked);
 	struct tcp_sack_block_wire *sp_wire = (struct tcp_sack_block_wire *)(ptr+2);
-	struct tcp_sack_block sp[4];
+	struct tcp_sack_block sp[TCP_NUM_SACKS];
 	struct tcp_sack_block *cache;
 	struct sk_buff *skb;
-	int num_sacks = (ptr[1] - TCPOLEN_SACK_BASE) >> 3;
+	int num_sacks = min(TCP_NUM_SACKS, (ptr[1] - TCPOLEN_SACK_BASE) >> 3);
 	int used_sacks;
 	int reord = tp->packets_out;
 	int flag = 0;
@@ -1432,7 +1441,7 @@ tcp_sacktag_write_queue(struct sock *sk, struct sk_buff *ack_skb,
 		tcp_highest_sack_reset(sk);
 	}
 
-	found_dup_sack = tcp_check_dsack(tp, ack_skb, sp_wire,
+	found_dup_sack = tcp_check_dsack(sk, ack_skb, sp_wire,
 					 num_sacks, prior_snd_una);
 	if (found_dup_sack)
 		flag |= FLAG_DSACKING_ACK;
@@ -1458,18 +1467,22 @@ tcp_sacktag_write_queue(struct sock *sk, struct sk_buff *ack_skb,
 		if (!tcp_is_sackblock_valid(tp, dup_sack,
 					    sp[used_sacks].start_seq,
 					    sp[used_sacks].end_seq)) {
+			int mib_idx;
+
 			if (dup_sack) {
 				if (!tp->undo_marker)
-					NET_INC_STATS_BH(LINUX_MIB_TCPDSACKIGNOREDNOUNDO);
+					mib_idx = LINUX_MIB_TCPDSACKIGNOREDNOUNDO;
 				else
-					NET_INC_STATS_BH(LINUX_MIB_TCPDSACKIGNOREDOLD);
+					mib_idx = LINUX_MIB_TCPDSACKIGNOREDOLD;
 			} else {
 				/* Don't count olds caused by ACK reordering */
 				if ((TCP_SKB_CB(ack_skb)->ack_seq != tp->snd_una) &&
 				    !after(sp[used_sacks].end_seq, tp->snd_una))
 					continue;
-				NET_INC_STATS_BH(LINUX_MIB_TCPSACKDISCARD);
+				mib_idx = LINUX_MIB_TCPSACKDISCARD;
 			}
+
+			NET_INC_STATS_BH(sock_net(sk), mib_idx);
 			if (i == 0)
 				first_sack_index = -1;
 			continue;
@@ -1962,7 +1975,7 @@ static int tcp_check_sack_reneging(struct sock *sk, int flag)
 {
 	if (flag & FLAG_SACK_RENEGING) {
 		struct inet_connection_sock *icsk = inet_csk(sk);
-		NET_INC_STATS_BH(LINUX_MIB_TCPSACKRENEGING);
+		NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPSACKRENEGING);
 
 		tcp_enter_loss(sk, 1);
 		icsk->icsk_retransmits++;
@@ -2382,15 +2395,19 @@ static int tcp_try_undo_recovery(struct sock *sk)
 	struct tcp_sock *tp = tcp_sk(sk);
 
 	if (tcp_may_undo(tp)) {
+		int mib_idx;
+
 		/* Happy end! We did not retransmit anything
 		 * or our original transmission succeeded.
 		 */
 		DBGUNDO(sk, inet_csk(sk)->icsk_ca_state == TCP_CA_Loss ? "loss" : "retrans");
 		tcp_undo_cwr(sk, 1);
 		if (inet_csk(sk)->icsk_ca_state == TCP_CA_Loss)
-			NET_INC_STATS_BH(LINUX_MIB_TCPLOSSUNDO);
+			mib_idx = LINUX_MIB_TCPLOSSUNDO;
 		else
-			NET_INC_STATS_BH(LINUX_MIB_TCPFULLUNDO);
+			mib_idx = LINUX_MIB_TCPFULLUNDO;
+
+		NET_INC_STATS_BH(sock_net(sk), mib_idx);
 		tp->undo_marker = 0;
 	}
 	if (tp->snd_una == tp->high_seq && tcp_is_reno(tp)) {
@@ -2413,7 +2430,7 @@ static void tcp_try_undo_dsack(struct sock *sk)
 		DBGUNDO(sk, "D-SACK");
 		tcp_undo_cwr(sk, 1);
 		tp->undo_marker = 0;
-		NET_INC_STATS_BH(LINUX_MIB_TCPDSACKUNDO);
+		NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPDSACKUNDO);
 	}
 }
 
@@ -2436,7 +2453,7 @@ static int tcp_try_undo_partial(struct sock *sk, int acked)
 
 		DBGUNDO(sk, "Hoe");
 		tcp_undo_cwr(sk, 0);
-		NET_INC_STATS_BH(LINUX_MIB_TCPPARTIALUNDO);
+		NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPPARTIALUNDO);
 
 		/* So... Do not make Hoe's retransmit yet.
 		 * If the first packet was delayed, the rest
@@ -2465,7 +2482,7 @@ static int tcp_try_undo_loss(struct sock *sk)
 		DBGUNDO(sk, "partial loss");
 		tp->lost_out = 0;
 		tcp_undo_cwr(sk, 1);
-		NET_INC_STATS_BH(LINUX_MIB_TCPLOSSUNDO);
+		NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPLOSSUNDO);
 		inet_csk(sk)->icsk_retransmits = 0;
 		tp->undo_marker = 0;
 		if (tcp_is_sack(tp))
@@ -2562,7 +2579,7 @@ static void tcp_fastretrans_alert(struct sock *sk, int pkts_acked, int flag)
 	int is_dupack = !(flag & (FLAG_SND_UNA_ADVANCED | FLAG_NOT_DUP));
 	int do_lost = is_dupack || ((flag & FLAG_DATA_SACKED) &&
 				    (tcp_fackets_out(tp) > tp->reordering));
-	int fast_rexmit = 0;
+	int fast_rexmit = 0, mib_idx;
 
 	if (WARN_ON(!tp->packets_out && tp->sacked_out))
 		tp->sacked_out = 0;
@@ -2584,7 +2601,7 @@ static void tcp_fastretrans_alert(struct sock *sk, int pkts_acked, int flag)
 	    icsk->icsk_ca_state != TCP_CA_Open &&
 	    tp->fackets_out > tp->reordering) {
 		tcp_mark_head_lost(sk, tp->fackets_out - tp->reordering);
-		NET_INC_STATS_BH(LINUX_MIB_TCPLOSS);
+		NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPLOSS);
 	}
 
 	/* D. Check consistency of the current state. */
@@ -2685,9 +2702,11 @@ static void tcp_fastretrans_alert(struct sock *sk, int pkts_acked, int flag)
 		/* Otherwise enter Recovery state */
 
 		if (tcp_is_reno(tp))
-			NET_INC_STATS_BH(LINUX_MIB_TCPRENORECOVERY);
+			mib_idx = LINUX_MIB_TCPRENORECOVERY;
 		else
-			NET_INC_STATS_BH(LINUX_MIB_TCPSACKRECOVERY);
+			mib_idx = LINUX_MIB_TCPSACKRECOVERY;
+
+		NET_INC_STATS_BH(sock_net(sk), mib_idx);
 
 		tp->high_seq = tp->snd_nxt;
 		tp->prior_ssthresh = 0;
@@ -3198,7 +3217,7 @@ static int tcp_process_frto(struct sock *sk, int flag)
 		}
 		tp->frto_counter = 0;
 		tp->undo_marker = 0;
-		NET_INC_STATS_BH(LINUX_MIB_TCPSPURIOUSRTOS);
+		NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPSPURIOUSRTOS);
 	}
 	return 0;
 }
@@ -3251,12 +3270,12 @@ static int tcp_ack(struct sock *sk, struct sk_buff *skb, int flag)
 
 		tcp_ca_event(sk, CA_EVENT_FAST_ACK);
 
-		NET_INC_STATS_BH(LINUX_MIB_TCPHPACKS);
+		NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPHPACKS);
 	} else {
 		if (ack_seq != TCP_SKB_CB(skb)->end_seq)
 			flag |= FLAG_DATA;
 		else
-			NET_INC_STATS_BH(LINUX_MIB_TCPPUREACKS);
+			NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPPUREACKS);
 
 		flag |= tcp_ack_update_window(sk, skb, ack, ack_seq);
 
@@ -3450,6 +3469,43 @@ static int tcp_fast_parse_options(struct sk_buff *skb, struct tcphdr *th,
 	return 1;
 }
 
+#ifdef CONFIG_TCP_MD5SIG
+/*
+ * Parse MD5 Signature option
+ */
+u8 *tcp_parse_md5sig_option(struct tcphdr *th)
+{
+	int length = (th->doff << 2) - sizeof (*th);
+	u8 *ptr = (u8*)(th + 1);
+
+	/* If the TCP option is too short, we can short cut */
+	if (length < TCPOLEN_MD5SIG)
+		return NULL;
+
+	while (length > 0) {
+		int opcode = *ptr++;
+		int opsize;
+
+		switch(opcode) {
+		case TCPOPT_EOL:
+			return NULL;
+		case TCPOPT_NOP:
+			length--;
+			continue;
+		default:
+			opsize = *ptr++;
+			if (opsize < 2 || opsize > length)
+				return NULL;
+			if (opcode == TCPOPT_MD5SIG)
+				return ptr;
+		}
+		ptr += opsize - 2;
+		length -= opsize;
+	}
+	return NULL;
+}
+#endif
+
 static inline void tcp_store_ts_recent(struct tcp_sock *tp)
 {
 	tp->rx_opt.ts_recent = tp->rx_opt.rcv_tsval;
@@ -3662,26 +3718,33 @@ static inline int tcp_sack_extend(struct tcp_sack_block *sp, u32 seq,
 	return 0;
 }
 
-static void tcp_dsack_set(struct tcp_sock *tp, u32 seq, u32 end_seq)
+static void tcp_dsack_set(struct sock *sk, u32 seq, u32 end_seq)
 {
+	struct tcp_sock *tp = tcp_sk(sk);
+
 	if (tcp_is_sack(tp) && sysctl_tcp_dsack) {
+		int mib_idx;
+
 		if (before(seq, tp->rcv_nxt))
-			NET_INC_STATS_BH(LINUX_MIB_TCPDSACKOLDSENT);
+			mib_idx = LINUX_MIB_TCPDSACKOLDSENT;
 		else
-			NET_INC_STATS_BH(LINUX_MIB_TCPDSACKOFOSENT);
+			mib_idx = LINUX_MIB_TCPDSACKOFOSENT;
+
+		NET_INC_STATS_BH(sock_net(sk), mib_idx);
 
 		tp->rx_opt.dsack = 1;
 		tp->duplicate_sack[0].start_seq = seq;
 		tp->duplicate_sack[0].end_seq = end_seq;
-		tp->rx_opt.eff_sacks = min(tp->rx_opt.num_sacks + 1,
-					   4 - tp->rx_opt.tstamp_ok);
+		tp->rx_opt.eff_sacks = tp->rx_opt.num_sacks + 1;
 	}
 }
 
-static void tcp_dsack_extend(struct tcp_sock *tp, u32 seq, u32 end_seq)
+static void tcp_dsack_extend(struct sock *sk, u32 seq, u32 end_seq)
 {
+	struct tcp_sock *tp = tcp_sk(sk);
+
 	if (!tp->rx_opt.dsack)
-		tcp_dsack_set(tp, seq, end_seq);
+		tcp_dsack_set(sk, seq, end_seq);
 	else
 		tcp_sack_extend(tp->duplicate_sack, seq, end_seq);
 }
@@ -3692,7 +3755,7 @@ static void tcp_send_dupack(struct sock *sk, struct sk_buff *skb)
 
 	if (TCP_SKB_CB(skb)->end_seq != TCP_SKB_CB(skb)->seq &&
 	    before(TCP_SKB_CB(skb)->seq, tp->rcv_nxt)) {
-		NET_INC_STATS_BH(LINUX_MIB_DELAYEDACKLOST);
+		NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_DELAYEDACKLOST);
 		tcp_enter_quickack_mode(sk);
 
 		if (tcp_is_sack(tp) && sysctl_tcp_dsack) {
@@ -3700,7 +3763,7 @@ static void tcp_send_dupack(struct sock *sk, struct sk_buff *skb)
 
 			if (after(TCP_SKB_CB(skb)->end_seq, tp->rcv_nxt))
 				end_seq = tp->rcv_nxt;
-			tcp_dsack_set(tp, TCP_SKB_CB(skb)->seq, end_seq);
+			tcp_dsack_set(sk, TCP_SKB_CB(skb)->seq, end_seq);
 		}
 	}
 
@@ -3727,9 +3790,8 @@ static void tcp_sack_maybe_coalesce(struct tcp_sock *tp)
 			 * Decrease num_sacks.
 			 */
 			tp->rx_opt.num_sacks--;
-			tp->rx_opt.eff_sacks = min(tp->rx_opt.num_sacks +
-						   tp->rx_opt.dsack,
-						   4 - tp->rx_opt.tstamp_ok);
+			tp->rx_opt.eff_sacks = tp->rx_opt.num_sacks +
+					       tp->rx_opt.dsack;
 			for (i = this_sack; i < tp->rx_opt.num_sacks; i++)
 				sp[i] = sp[i + 1];
 			continue;
@@ -3779,7 +3841,7 @@ static void tcp_sack_new_ofo_skb(struct sock *sk, u32 seq, u32 end_seq)
 	 *
 	 * If the sack array is full, forget about the last one.
 	 */
-	if (this_sack >= 4) {
+	if (this_sack >= TCP_NUM_SACKS) {
 		this_sack--;
 		tp->rx_opt.num_sacks--;
 		sp--;
@@ -3792,8 +3854,7 @@ new_sack:
 	sp->start_seq = seq;
 	sp->end_seq = end_seq;
 	tp->rx_opt.num_sacks++;
-	tp->rx_opt.eff_sacks = min(tp->rx_opt.num_sacks + tp->rx_opt.dsack,
-				   4 - tp->rx_opt.tstamp_ok);
+	tp->rx_opt.eff_sacks = tp->rx_opt.num_sacks + tp->rx_opt.dsack;
 }
 
 /* RCV.NXT advances, some SACKs should be eaten. */
@@ -3830,9 +3891,8 @@ static void tcp_sack_remove(struct tcp_sock *tp)
 	}
 	if (num_sacks != tp->rx_opt.num_sacks) {
 		tp->rx_opt.num_sacks = num_sacks;
-		tp->rx_opt.eff_sacks = min(tp->rx_opt.num_sacks +
-					   tp->rx_opt.dsack,
-					   4 - tp->rx_opt.tstamp_ok);
+		tp->rx_opt.eff_sacks = tp->rx_opt.num_sacks +
+				       tp->rx_opt.dsack;
 	}
 }
 
@@ -3853,7 +3913,7 @@ static void tcp_ofo_queue(struct sock *sk)
 			__u32 dsack = dsack_high;
 			if (before(TCP_SKB_CB(skb)->end_seq, dsack_high))
 				dsack_high = TCP_SKB_CB(skb)->end_seq;
-			tcp_dsack_extend(tp, TCP_SKB_CB(skb)->seq, dsack);
+			tcp_dsack_extend(sk, TCP_SKB_CB(skb)->seq, dsack);
 		}
 
 		if (!after(TCP_SKB_CB(skb)->end_seq, tp->rcv_nxt)) {
@@ -3911,8 +3971,7 @@ static void tcp_data_queue(struct sock *sk, struct sk_buff *skb)
 
 	if (tp->rx_opt.dsack) {
 		tp->rx_opt.dsack = 0;
-		tp->rx_opt.eff_sacks = min_t(unsigned int, tp->rx_opt.num_sacks,
-					     4 - tp->rx_opt.tstamp_ok);
+		tp->rx_opt.eff_sacks = tp->rx_opt.num_sacks;
 	}
 
 	/*  Queue data for delivery to the user.
@@ -3981,8 +4040,8 @@ queue_and_out:
 
 	if (!after(TCP_SKB_CB(skb)->end_seq, tp->rcv_nxt)) {
 		/* A retransmit, 2nd most common case.  Force an immediate ack. */
-		NET_INC_STATS_BH(LINUX_MIB_DELAYEDACKLOST);
-		tcp_dsack_set(tp, TCP_SKB_CB(skb)->seq, TCP_SKB_CB(skb)->end_seq);
+		NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_DELAYEDACKLOST);
+		tcp_dsack_set(sk, TCP_SKB_CB(skb)->seq, TCP_SKB_CB(skb)->end_seq);
 
 out_of_window:
 		tcp_enter_quickack_mode(sk);
@@ -4004,7 +4063,7 @@ drop:
 			   tp->rcv_nxt, TCP_SKB_CB(skb)->seq,
 			   TCP_SKB_CB(skb)->end_seq);
 
-		tcp_dsack_set(tp, TCP_SKB_CB(skb)->seq, tp->rcv_nxt);
+		tcp_dsack_set(sk, TCP_SKB_CB(skb)->seq, tp->rcv_nxt);
 
 		/* If window is closed, drop tail of packet. But after
 		 * remembering D-SACK for its head made in previous line.
@@ -4069,12 +4128,12 @@ drop:
 			if (!after(end_seq, TCP_SKB_CB(skb1)->end_seq)) {
 				/* All the bits are present. Drop. */
 				__kfree_skb(skb);
-				tcp_dsack_set(tp, seq, end_seq);
+				tcp_dsack_set(sk, seq, end_seq);
 				goto add_sack;
 			}
 			if (after(seq, TCP_SKB_CB(skb1)->seq)) {
 				/* Partial overlap. */
-				tcp_dsack_set(tp, seq,
+				tcp_dsack_set(sk, seq,
 					      TCP_SKB_CB(skb1)->end_seq);
 			} else {
 				skb1 = skb1->prev;
@@ -4087,12 +4146,12 @@ drop:
 		       (struct sk_buff *)&tp->out_of_order_queue &&
 		       after(end_seq, TCP_SKB_CB(skb1)->seq)) {
 			if (before(end_seq, TCP_SKB_CB(skb1)->end_seq)) {
-				tcp_dsack_extend(tp, TCP_SKB_CB(skb1)->seq,
+				tcp_dsack_extend(sk, TCP_SKB_CB(skb1)->seq,
 						 end_seq);
 				break;
 			}
 			__skb_unlink(skb1, &tp->out_of_order_queue);
-			tcp_dsack_extend(tp, TCP_SKB_CB(skb1)->seq,
+			tcp_dsack_extend(sk, TCP_SKB_CB(skb1)->seq,
 					 TCP_SKB_CB(skb1)->end_seq);
 			__kfree_skb(skb1);
 		}
@@ -4123,7 +4182,7 @@ tcp_collapse(struct sock *sk, struct sk_buff_head *list,
 			struct sk_buff *next = skb->next;
 			__skb_unlink(skb, list);
 			__kfree_skb(skb);
-			NET_INC_STATS_BH(LINUX_MIB_TCPRCVCOLLAPSED);
+			NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPRCVCOLLAPSED);
 			skb = next;
 			continue;
 		}
@@ -4191,7 +4250,7 @@ tcp_collapse(struct sock *sk, struct sk_buff_head *list,
 				struct sk_buff *next = skb->next;
 				__skb_unlink(skb, list);
 				__kfree_skb(skb);
-				NET_INC_STATS_BH(LINUX_MIB_TCPRCVCOLLAPSED);
+				NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPRCVCOLLAPSED);
 				skb = next;
 				if (skb == tail ||
 				    tcp_hdr(skb)->syn ||
@@ -4254,7 +4313,7 @@ static int tcp_prune_ofo_queue(struct sock *sk)
 	int res = 0;
 
 	if (!skb_queue_empty(&tp->out_of_order_queue)) {
-		NET_INC_STATS_BH(LINUX_MIB_OFOPRUNED);
+		NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_OFOPRUNED);
 		__skb_queue_purge(&tp->out_of_order_queue);
 
 		/* Reset SACK state.  A conforming SACK implementation will
@@ -4283,7 +4342,7 @@ static int tcp_prune_queue(struct sock *sk)
 
 	SOCK_DEBUG(sk, "prune_queue: c=%x\n", tp->copied_seq);
 
-	NET_INC_STATS_BH(LINUX_MIB_PRUNECALLED);
+	NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_PRUNECALLED);
 
 	if (atomic_read(&sk->sk_rmem_alloc) >= sk->sk_rcvbuf)
 		tcp_clamp_window(sk);
@@ -4312,7 +4371,7 @@ static int tcp_prune_queue(struct sock *sk)
 	 * drop receive data on the floor.  It will get retransmitted
 	 * and hopefully then we'll have sufficient space.
 	 */
-	NET_INC_STATS_BH(LINUX_MIB_RCVPRUNED);
+	NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_RCVPRUNED);
 
 	/* Massive buffer overcommit. */
 	tp->pred_flags = 0;
@@ -4742,7 +4801,7 @@ int tcp_rcv_established(struct sock *sk, struct sk_buff *skb,
 				tcp_data_snd_check(sk);
 				return 0;
 			} else { /* Header too small */
-				TCP_INC_STATS_BH(TCP_MIB_INERRS);
+				TCP_INC_STATS_BH(sock_net(sk), TCP_MIB_INERRS);
 				goto discard;
 			}
 		} else {
@@ -4779,7 +4838,7 @@ int tcp_rcv_established(struct sock *sk, struct sk_buff *skb,
 
 					__skb_pull(skb, tcp_header_len);
 					tp->rcv_nxt = TCP_SKB_CB(skb)->end_seq;
-					NET_INC_STATS_BH(LINUX_MIB_TCPHPHITSTOUSER);
+					NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPHPHITSTOUSER);
 				}
 				if (copied_early)
 					tcp_cleanup_rbuf(sk, skb->len);
@@ -4802,7 +4861,7 @@ int tcp_rcv_established(struct sock *sk, struct sk_buff *skb,
 				if ((int)skb->truesize > sk->sk_forward_alloc)
 					goto step5;
 
-				NET_INC_STATS_BH(LINUX_MIB_TCPHPHITS);
+				NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPHPHITS);
 
 				/* Bulk data transfer: receiver */
 				__skb_pull(skb, tcp_header_len);
@@ -4846,7 +4905,7 @@ slow_path:
 	if (tcp_fast_parse_options(skb, th, tp) && tp->rx_opt.saw_tstamp &&
 	    tcp_paws_discard(sk, skb)) {
 		if (!th->rst) {
-			NET_INC_STATS_BH(LINUX_MIB_PAWSESTABREJECTED);
+			NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_PAWSESTABREJECTED);
 			tcp_send_dupack(sk, skb);
 			goto discard;
 		}
@@ -4881,8 +4940,8 @@ slow_path:
 	tcp_replace_ts_recent(tp, TCP_SKB_CB(skb)->seq);
 
 	if (th->syn && !before(TCP_SKB_CB(skb)->seq, tp->rcv_nxt)) {
-		TCP_INC_STATS_BH(TCP_MIB_INERRS);
-		NET_INC_STATS_BH(LINUX_MIB_TCPABORTONSYN);
+		TCP_INC_STATS_BH(sock_net(sk), TCP_MIB_INERRS);
+		NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPABORTONSYN);
 		tcp_reset(sk);
 		return 1;
 	}
@@ -4904,7 +4963,7 @@ step5:
 	return 0;
 
 csum_error:
-	TCP_INC_STATS_BH(TCP_MIB_INERRS);
+	TCP_INC_STATS_BH(sock_net(sk), TCP_MIB_INERRS);
 
 discard:
 	__kfree_skb(skb);
@@ -4938,7 +4997,7 @@ static int tcp_rcv_synsent_state_process(struct sock *sk, struct sk_buff *skb,
 		if (tp->rx_opt.saw_tstamp && tp->rx_opt.rcv_tsecr &&
 		    !between(tp->rx_opt.rcv_tsecr, tp->retrans_stamp,
 			     tcp_time_stamp)) {
-			NET_INC_STATS_BH(LINUX_MIB_PAWSACTIVEREJECTED);
+			NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_PAWSACTIVEREJECTED);
 			goto reset_and_undo;
 		}
 
@@ -5222,7 +5281,7 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
 	if (tcp_fast_parse_options(skb, th, tp) && tp->rx_opt.saw_tstamp &&
 	    tcp_paws_discard(sk, skb)) {
 		if (!th->rst) {
-			NET_INC_STATS_BH(LINUX_MIB_PAWSESTABREJECTED);
+			NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_PAWSESTABREJECTED);
 			tcp_send_dupack(sk, skb);
 			goto discard;
 		}
@@ -5251,7 +5310,7 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
 	 *	Check for a SYN in window.
 	 */
 	if (th->syn && !before(TCP_SKB_CB(skb)->seq, tp->rcv_nxt)) {
-		NET_INC_STATS_BH(LINUX_MIB_TCPABORTONSYN);
+		NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPABORTONSYN);
 		tcp_reset(sk);
 		return 1;
 	}
@@ -5333,7 +5392,7 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
 					    (TCP_SKB_CB(skb)->end_seq != TCP_SKB_CB(skb)->seq &&
 					     after(TCP_SKB_CB(skb)->end_seq - th->fin, tp->rcv_nxt))) {
 						tcp_done(sk);
-						NET_INC_STATS_BH(LINUX_MIB_TCPABORTONDATA);
+						NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPABORTONDATA);
 						return 1;
 					}
 
@@ -5393,7 +5452,7 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
 		if (sk->sk_shutdown & RCV_SHUTDOWN) {
 			if (TCP_SKB_CB(skb)->end_seq != TCP_SKB_CB(skb)->seq &&
 			    after(TCP_SKB_CB(skb)->end_seq - th->fin, tp->rcv_nxt)) {
-				NET_INC_STATS_BH(LINUX_MIB_TCPABORTONDATA);
+				NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPABORTONDATA);
 				tcp_reset(sk);
 				return 1;
 			}
@@ -5422,6 +5481,9 @@ EXPORT_SYMBOL(sysctl_tcp_ecn);
 EXPORT_SYMBOL(sysctl_tcp_reordering);
 EXPORT_SYMBOL(sysctl_tcp_adv_win_scale);
 EXPORT_SYMBOL(tcp_parse_options);
+#ifdef CONFIG_TCP_MD5SIG
+EXPORT_SYMBOL(tcp_parse_md5sig_option);
+#endif
 EXPORT_SYMBOL(tcp_rcv_established);
 EXPORT_SYMBOL(tcp_rcv_state_process);
 EXPORT_SYMBOL(tcp_initialize_rcv_mss);
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index ffe869ac1bc..a82df630756 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -5,8 +5,6 @@
  *
  *		Implementation of the Transmission Control Protocol(TCP).
  *
- * Version:	$Id: tcp_ipv4.c,v 1.240 2002/02/01 22:01:04 davem Exp $
- *
  *		IPv4 specific functions
  *
  *
@@ -89,10 +87,14 @@ int sysctl_tcp_low_latency __read_mostly;
 #ifdef CONFIG_TCP_MD5SIG
 static struct tcp_md5sig_key *tcp_v4_md5_do_lookup(struct sock *sk,
 						   __be32 addr);
-static int tcp_v4_do_calc_md5_hash(char *md5_hash, struct tcp_md5sig_key *key,
-				   __be32 saddr, __be32 daddr,
-				   struct tcphdr *th, int protocol,
-				   unsigned int tcplen);
+static int tcp_v4_md5_hash_hdr(char *md5_hash, struct tcp_md5sig_key *key,
+			       __be32 daddr, __be32 saddr, struct tcphdr *th);
+#else
+static inline
+struct tcp_md5sig_key *tcp_v4_md5_do_lookup(struct sock *sk, __be32 addr)
+{
+	return NULL;
+}
 #endif
 
 struct inet_hashinfo __cacheline_aligned tcp_hashinfo = {
@@ -172,7 +174,7 @@ int tcp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
 			       inet->sport, usin->sin_port, sk, 1);
 	if (tmp < 0) {
 		if (tmp == -ENETUNREACH)
-			IP_INC_STATS_BH(IPSTATS_MIB_OUTNOROUTES);
+			IP_INC_STATS_BH(sock_net(sk), IPSTATS_MIB_OUTNOROUTES);
 		return tmp;
 	}
 
@@ -340,16 +342,17 @@ void tcp_v4_err(struct sk_buff *skb, u32 info)
 	struct sock *sk;
 	__u32 seq;
 	int err;
+	struct net *net = dev_net(skb->dev);
 
 	if (skb->len < (iph->ihl << 2) + 8) {
-		ICMP_INC_STATS_BH(ICMP_MIB_INERRORS);
+		ICMP_INC_STATS_BH(net, ICMP_MIB_INERRORS);
 		return;
 	}
 
-	sk = inet_lookup(dev_net(skb->dev), &tcp_hashinfo, iph->daddr, th->dest,
+	sk = inet_lookup(net, &tcp_hashinfo, iph->daddr, th->dest,
 			iph->saddr, th->source, inet_iif(skb));
 	if (!sk) {
-		ICMP_INC_STATS_BH(ICMP_MIB_INERRORS);
+		ICMP_INC_STATS_BH(net, ICMP_MIB_INERRORS);
 		return;
 	}
 	if (sk->sk_state == TCP_TIME_WAIT) {
@@ -362,7 +365,7 @@ void tcp_v4_err(struct sk_buff *skb, u32 info)
 	 * servers this needs to be solved differently.
 	 */
 	if (sock_owned_by_user(sk))
-		NET_INC_STATS_BH(LINUX_MIB_LOCKDROPPEDICMPS);
+		NET_INC_STATS_BH(net, LINUX_MIB_LOCKDROPPEDICMPS);
 
 	if (sk->sk_state == TCP_CLOSE)
 		goto out;
@@ -371,7 +374,7 @@ void tcp_v4_err(struct sk_buff *skb, u32 info)
 	seq = ntohl(th->seq);
 	if (sk->sk_state != TCP_LISTEN &&
 	    !between(seq, tp->snd_una, tp->snd_nxt)) {
-		NET_INC_STATS_BH(LINUX_MIB_OUTOFWINDOWICMPS);
+		NET_INC_STATS_BH(net, LINUX_MIB_OUTOFWINDOWICMPS);
 		goto out;
 	}
 
@@ -418,7 +421,7 @@ void tcp_v4_err(struct sk_buff *skb, u32 info)
 		BUG_TRAP(!req->sk);
 
 		if (seq != tcp_rsk(req)->snt_isn) {
-			NET_INC_STATS_BH(LINUX_MIB_OUTOFWINDOWICMPS);
+			NET_INC_STATS_BH(net, LINUX_MIB_OUTOFWINDOWICMPS);
 			goto out;
 		}
 
@@ -540,6 +543,7 @@ static void tcp_v4_send_reset(struct sock *sk, struct sk_buff *skb)
 #ifdef CONFIG_TCP_MD5SIG
 	struct tcp_md5sig_key *key;
 #endif
+	struct net *net;
 
 	/* Never send a reset in response to a reset. */
 	if (th->rst)
@@ -578,12 +582,9 @@ static void tcp_v4_send_reset(struct sock *sk, struct sk_buff *skb)
 		arg.iov[0].iov_len += TCPOLEN_MD5SIG_ALIGNED;
 		rep.th.doff = arg.iov[0].iov_len / 4;
 
-		tcp_v4_do_calc_md5_hash((__u8 *)&rep.opt[1],
-					key,
-					ip_hdr(skb)->daddr,
-					ip_hdr(skb)->saddr,
-					&rep.th, IPPROTO_TCP,
-					arg.iov[0].iov_len);
+		tcp_v4_md5_hash_hdr((__u8 *) &rep.opt[1],
+				     key, ip_hdr(skb)->daddr,
+				     ip_hdr(skb)->saddr, &rep.th);
 	}
 #endif
 	arg.csum = csum_tcpudp_nofold(ip_hdr(skb)->daddr,
@@ -591,20 +592,21 @@ 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(dev_net(skb->dst->dev)->ipv4.tcp_sock, skb,
+	net = dev_net(skb->dst->dev);
+	ip_send_reply(net->ipv4.tcp_sock, skb,
 		      &arg, arg.iov[0].iov_len);
 
-	TCP_INC_STATS_BH(TCP_MIB_OUTSEGS);
-	TCP_INC_STATS_BH(TCP_MIB_OUTRSTS);
+	TCP_INC_STATS_BH(net, TCP_MIB_OUTSEGS);
+	TCP_INC_STATS_BH(net, TCP_MIB_OUTRSTS);
 }
 
 /* The code following below sending ACKs in SYN-RECV and TIME-WAIT states
    outside socket context is ugly, certainly. What can I do?
  */
 
-static void tcp_v4_send_ack(struct tcp_timewait_sock *twsk,
-			    struct sk_buff *skb, u32 seq, u32 ack,
-			    u32 win, u32 ts)
+static void tcp_v4_send_ack(struct sk_buff *skb, u32 seq, u32 ack,
+			    u32 win, u32 ts, int oif,
+			    struct tcp_md5sig_key *key)
 {
 	struct tcphdr *th = tcp_hdr(skb);
 	struct {
@@ -616,10 +618,7 @@ static void tcp_v4_send_ack(struct tcp_timewait_sock *twsk,
 			];
 	} rep;
 	struct ip_reply_arg arg;
-#ifdef CONFIG_TCP_MD5SIG
-	struct tcp_md5sig_key *key;
-	struct tcp_md5sig_key tw_key;
-#endif
+	struct net *net = dev_net(skb->dev);
 
 	memset(&rep.th, 0, sizeof(struct tcphdr));
 	memset(&arg, 0, sizeof(arg));
@@ -645,23 +644,6 @@ static void tcp_v4_send_ack(struct tcp_timewait_sock *twsk,
 	rep.th.window  = htons(win);
 
 #ifdef CONFIG_TCP_MD5SIG
-	/*
-	 * The SKB holds an imcoming packet, but may not have a valid ->sk
-	 * pointer. This is especially the case when we're dealing with a
-	 * TIME_WAIT ack, because the sk structure is long gone, and only
-	 * the tcp_timewait_sock remains. So the md5 key is stashed in that
-	 * structure, and we use it in preference.  I believe that (twsk ||
-	 * skb->sk) holds true, but we program defensively.
-	 */
-	if (!twsk && skb->sk) {
-		key = tcp_v4_md5_do_lookup(skb->sk, ip_hdr(skb)->daddr);
-	} else if (twsk && twsk->tw_md5_keylen) {
-		tw_key.key = twsk->tw_md5_key;
-		tw_key.keylen = twsk->tw_md5_keylen;
-		key = &tw_key;
-	} else
-		key = NULL;
-
 	if (key) {
 		int offset = (ts) ? 3 : 0;
 
@@ -672,25 +654,22 @@ static void tcp_v4_send_ack(struct tcp_timewait_sock *twsk,
 		arg.iov[0].iov_len += TCPOLEN_MD5SIG_ALIGNED;
 		rep.th.doff = arg.iov[0].iov_len/4;
 
-		tcp_v4_do_calc_md5_hash((__u8 *)&rep.opt[offset],
-					key,
-					ip_hdr(skb)->daddr,
-					ip_hdr(skb)->saddr,
-					&rep.th, IPPROTO_TCP,
-					arg.iov[0].iov_len);
+		tcp_v4_md5_hash_hdr((__u8 *) &rep.opt[offset],
+				    key, ip_hdr(skb)->daddr,
+				    ip_hdr(skb)->saddr, &rep.th);
 	}
 #endif
 	arg.csum = csum_tcpudp_nofold(ip_hdr(skb)->daddr,
 				      ip_hdr(skb)->saddr, /* XXX */
 				      arg.iov[0].iov_len, IPPROTO_TCP, 0);
 	arg.csumoffset = offsetof(struct tcphdr, check) / 2;
-	if (twsk)
-		arg.bound_dev_if = twsk->tw_sk.tw_bound_dev_if;
+	if (oif)
+		arg.bound_dev_if = oif;
 
-	ip_send_reply(dev_net(skb->dev)->ipv4.tcp_sock, skb,
+	ip_send_reply(net->ipv4.tcp_sock, skb,
 		      &arg, arg.iov[0].iov_len);
 
-	TCP_INC_STATS_BH(TCP_MIB_OUTSEGS);
+	TCP_INC_STATS_BH(net, TCP_MIB_OUTSEGS);
 }
 
 static void tcp_v4_timewait_ack(struct sock *sk, struct sk_buff *skb)
@@ -698,9 +677,12 @@ static void tcp_v4_timewait_ack(struct sock *sk, struct sk_buff *skb)
 	struct inet_timewait_sock *tw = inet_twsk(sk);
 	struct tcp_timewait_sock *tcptw = tcp_twsk(sk);
 
-	tcp_v4_send_ack(tcptw, skb, tcptw->tw_snd_nxt, tcptw->tw_rcv_nxt,
+	tcp_v4_send_ack(skb, tcptw->tw_snd_nxt, tcptw->tw_rcv_nxt,
 			tcptw->tw_rcv_wnd >> tw->tw_rcv_wscale,
-			tcptw->tw_ts_recent);
+			tcptw->tw_ts_recent,
+			tw->tw_bound_dev_if,
+			tcp_twsk_md5_key(tcptw)
+			);
 
 	inet_twsk_put(tw);
 }
@@ -708,9 +690,11 @@ static void tcp_v4_timewait_ack(struct sock *sk, struct sk_buff *skb)
 static void tcp_v4_reqsk_send_ack(struct sk_buff *skb,
 				  struct request_sock *req)
 {
-	tcp_v4_send_ack(NULL, skb, tcp_rsk(req)->snt_isn + 1,
+	tcp_v4_send_ack(skb, tcp_rsk(req)->snt_isn + 1,
 			tcp_rsk(req)->rcv_isn + 1, req->rcv_wnd,
-			req->ts_recent);
+			req->ts_recent,
+			0,
+			tcp_v4_md5_do_lookup(skb->sk, ip_hdr(skb)->daddr));
 }
 
 /*
@@ -1000,32 +984,13 @@ static int tcp_v4_parse_md5_keys(struct sock *sk, char __user *optval,
 				 newkey, cmd.tcpm_keylen);
 }
 
-static int tcp_v4_do_calc_md5_hash(char *md5_hash, struct tcp_md5sig_key *key,
-				   __be32 saddr, __be32 daddr,
-				   struct tcphdr *th, int protocol,
-				   unsigned int tcplen)
+static int tcp_v4_md5_hash_pseudoheader(struct tcp_md5sig_pool *hp,
+					__be32 daddr, __be32 saddr, int nbytes)
 {
-	struct scatterlist sg[4];
-	__u16 data_len;
-	int block = 0;
-	__sum16 old_checksum;
-	struct tcp_md5sig_pool *hp;
 	struct tcp4_pseudohdr *bp;
-	struct hash_desc *desc;
-	int err;
-	unsigned int nbytes = 0;
-
-	/*
-	 * Okay, so RFC2385 is turned on for this connection,
-	 * so we need to generate the MD5 hash for the packet now.
-	 */
-
-	hp = tcp_get_md5sig_pool();
-	if (!hp)
-		goto clear_hash_noput;
+	struct scatterlist sg;
 
 	bp = &hp->md5_blk.ip4;
-	desc = &hp->md5_desc;
 
 	/*
 	 * 1. the TCP pseudo-header (in the order: source IP address,
@@ -1035,86 +1000,96 @@ static int tcp_v4_do_calc_md5_hash(char *md5_hash, struct tcp_md5sig_key *key,
 	bp->saddr = saddr;
 	bp->daddr = daddr;
 	bp->pad = 0;
-	bp->protocol = protocol;
-	bp->len = htons(tcplen);
-
-	sg_init_table(sg, 4);
-
-	sg_set_buf(&sg[block++], bp, sizeof(*bp));
-	nbytes += sizeof(*bp);
-
-	/* 2. the TCP header, excluding options, and assuming a
-	 * checksum of zero/
-	 */
-	old_checksum = th->check;
-	th->check = 0;
-	sg_set_buf(&sg[block++], th, sizeof(struct tcphdr));
-	nbytes += sizeof(struct tcphdr);
+	bp->protocol = IPPROTO_TCP;
+	bp->len = cpu_to_be16(nbytes);
 
-	/* 3. the TCP segment data (if any) */
-	data_len = tcplen - (th->doff << 2);
-	if (data_len > 0) {
-		unsigned char *data = (unsigned char *)th + (th->doff << 2);
-		sg_set_buf(&sg[block++], data, data_len);
-		nbytes += data_len;
-	}
+	sg_init_one(&sg, bp, sizeof(*bp));
+	return crypto_hash_update(&hp->md5_desc, &sg, sizeof(*bp));
+}
 
-	/* 4. an independently-specified key or password, known to both
-	 * TCPs and presumably connection-specific
-	 */
-	sg_set_buf(&sg[block++], key->key, key->keylen);
-	nbytes += key->keylen;
+static int tcp_v4_md5_hash_hdr(char *md5_hash, struct tcp_md5sig_key *key,
+			       __be32 daddr, __be32 saddr, struct tcphdr *th)
+{
+	struct tcp_md5sig_pool *hp;
+	struct hash_desc *desc;
 
-	sg_mark_end(&sg[block - 1]);
+	hp = tcp_get_md5sig_pool();
+	if (!hp)
+		goto clear_hash_noput;
+	desc = &hp->md5_desc;
 
-	/* Now store the Hash into the packet */
-	err = crypto_hash_init(desc);
-	if (err)
+	if (crypto_hash_init(desc))
 		goto clear_hash;
-	err = crypto_hash_update(desc, sg, nbytes);
-	if (err)
+	if (tcp_v4_md5_hash_pseudoheader(hp, daddr, saddr, th->doff << 2))
 		goto clear_hash;
-	err = crypto_hash_final(desc, md5_hash);
-	if (err)
+	if (tcp_md5_hash_header(hp, th))
+		goto clear_hash;
+	if (tcp_md5_hash_key(hp, key))
+		goto clear_hash;
+	if (crypto_hash_final(desc, md5_hash))
 		goto clear_hash;
 
-	/* Reset header, and free up the crypto */
 	tcp_put_md5sig_pool();
-	th->check = old_checksum;
-
-out:
 	return 0;
+
 clear_hash:
 	tcp_put_md5sig_pool();
 clear_hash_noput:
 	memset(md5_hash, 0, 16);
-	goto out;
+	return 1;
 }
 
-int tcp_v4_calc_md5_hash(char *md5_hash, struct tcp_md5sig_key *key,
-			 struct sock *sk,
-			 struct dst_entry *dst,
-			 struct request_sock *req,
-			 struct tcphdr *th, int protocol,
-			 unsigned int tcplen)
+int tcp_v4_md5_hash_skb(char *md5_hash, struct tcp_md5sig_key *key,
+			struct sock *sk, struct request_sock *req,
+			struct sk_buff *skb)
 {
+	struct tcp_md5sig_pool *hp;
+	struct hash_desc *desc;
+	struct tcphdr *th = tcp_hdr(skb);
 	__be32 saddr, daddr;
 
 	if (sk) {
 		saddr = inet_sk(sk)->saddr;
 		daddr = inet_sk(sk)->daddr;
+	} else if (req) {
+		saddr = inet_rsk(req)->loc_addr;
+		daddr = inet_rsk(req)->rmt_addr;
 	} else {
-		struct rtable *rt = (struct rtable *)dst;
-		BUG_ON(!rt);
-		saddr = rt->rt_src;
-		daddr = rt->rt_dst;
+		const struct iphdr *iph = ip_hdr(skb);
+		saddr = iph->saddr;
+		daddr = iph->daddr;
 	}
-	return tcp_v4_do_calc_md5_hash(md5_hash, key,
-				       saddr, daddr,
-				       th, protocol, tcplen);
+
+	hp = tcp_get_md5sig_pool();
+	if (!hp)
+		goto clear_hash_noput;
+	desc = &hp->md5_desc;
+
+	if (crypto_hash_init(desc))
+		goto clear_hash;
+
+	if (tcp_v4_md5_hash_pseudoheader(hp, daddr, saddr, skb->len))
+		goto clear_hash;
+	if (tcp_md5_hash_header(hp, th))
+		goto clear_hash;
+	if (tcp_md5_hash_skb_data(hp, skb, th->doff << 2))
+		goto clear_hash;
+	if (tcp_md5_hash_key(hp, key))
+		goto clear_hash;
+	if (crypto_hash_final(desc, md5_hash))
+		goto clear_hash;
+
+	tcp_put_md5sig_pool();
+	return 0;
+
+clear_hash:
+	tcp_put_md5sig_pool();
+clear_hash_noput:
+	memset(md5_hash, 0, 16);
+	return 1;
 }
 
-EXPORT_SYMBOL(tcp_v4_calc_md5_hash);
+EXPORT_SYMBOL(tcp_v4_md5_hash_skb);
 
 static int tcp_v4_inbound_md5_hash(struct sock *sk, struct sk_buff *skb)
 {
@@ -1130,52 +1105,12 @@ static int tcp_v4_inbound_md5_hash(struct sock *sk, struct sk_buff *skb)
 	struct tcp_md5sig_key *hash_expected;
 	const struct iphdr *iph = ip_hdr(skb);
 	struct tcphdr *th = tcp_hdr(skb);
-	int length = (th->doff << 2) - sizeof(struct tcphdr);
 	int genhash;
-	unsigned char *ptr;
 	unsigned char newhash[16];
 
 	hash_expected = tcp_v4_md5_do_lookup(sk, iph->saddr);
+	hash_location = tcp_parse_md5sig_option(th);
 
-	/*
-	 * If the TCP option length is less than the TCP_MD5SIG
-	 * option length, then we can shortcut
-	 */
-	if (length < TCPOLEN_MD5SIG) {
-		if (hash_expected)
-			return 1;
-		else
-			return 0;
-	}
-
-	/* Okay, we can't shortcut - we have to grub through the options */
-	ptr = (unsigned char *)(th + 1);
-	while (length > 0) {
-		int opcode = *ptr++;
-		int opsize;
-
-		switch (opcode) {
-		case TCPOPT_EOL:
-			goto done_opts;
-		case TCPOPT_NOP:
-			length--;
-			continue;
-		default:
-			opsize = *ptr++;
-			if (opsize < 2)
-				goto done_opts;
-			if (opsize > length)
-				goto done_opts;
-
-			if (opcode == TCPOPT_MD5SIG) {
-				hash_location = ptr;
-				goto done_opts;
-			}
-		}
-		ptr += opsize-2;
-		length -= opsize;
-	}
-done_opts:
 	/* We've parsed the options - do we have a hash? */
 	if (!hash_expected && !hash_location)
 		return 0;
@@ -1199,11 +1134,9 @@ done_opts:
 	/* Okay, so this is hash_expected and hash_location -
 	 * so we need to calculate the checksum.
 	 */
-	genhash = tcp_v4_do_calc_md5_hash(newhash,
-					  hash_expected,
-					  iph->saddr, iph->daddr,
-					  th, sk->sk_protocol,
-					  skb->len);
+	genhash = tcp_v4_md5_hash_skb(newhash,
+				      hash_expected,
+				      NULL, NULL, skb);
 
 	if (genhash || memcmp(hash_location, newhash, 16) != 0) {
 		if (net_ratelimit()) {
@@ -1347,7 +1280,7 @@ int tcp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
 			if (get_seconds() < peer->tcp_ts_stamp + TCP_PAWS_MSL &&
 			    (s32)(peer->tcp_ts - req->ts_recent) >
 							TCP_PAWS_WINDOW) {
-				NET_INC_STATS_BH(LINUX_MIB_PAWSPASSIVEREJECTED);
+				NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_PAWSPASSIVEREJECTED);
 				goto drop_and_release;
 			}
 		}
@@ -1452,6 +1385,7 @@ struct sock *tcp_v4_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
 		if (newkey != NULL)
 			tcp_v4_md5_do_add(newsk, inet_sk(sk)->daddr,
 					  newkey, key->keylen);
+		newsk->sk_route_caps &= ~NETIF_F_GSO_MASK;
 	}
 #endif
 
@@ -1461,9 +1395,9 @@ struct sock *tcp_v4_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
 	return newsk;
 
 exit_overflow:
-	NET_INC_STATS_BH(LINUX_MIB_LISTENOVERFLOWS);
+	NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_LISTENOVERFLOWS);
 exit:
-	NET_INC_STATS_BH(LINUX_MIB_LISTENDROPS);
+	NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_LISTENDROPS);
 	dst_release(dst);
 	return NULL;
 }
@@ -1590,7 +1524,7 @@ discard:
 	return 0;
 
 csum_err:
-	TCP_INC_STATS_BH(TCP_MIB_INERRS);
+	TCP_INC_STATS_BH(sock_net(sk), TCP_MIB_INERRS);
 	goto discard;
 }
 
@@ -1604,12 +1538,13 @@ int tcp_v4_rcv(struct sk_buff *skb)
 	struct tcphdr *th;
 	struct sock *sk;
 	int ret;
+	struct net *net = dev_net(skb->dev);
 
 	if (skb->pkt_type != PACKET_HOST)
 		goto discard_it;
 
 	/* Count it even if it's bad */
-	TCP_INC_STATS_BH(TCP_MIB_INSEGS);
+	TCP_INC_STATS_BH(net, TCP_MIB_INSEGS);
 
 	if (!pskb_may_pull(skb, sizeof(struct tcphdr)))
 		goto discard_it;
@@ -1638,7 +1573,7 @@ int tcp_v4_rcv(struct sk_buff *skb)
 	TCP_SKB_CB(skb)->flags	 = iph->tos;
 	TCP_SKB_CB(skb)->sacked	 = 0;
 
-	sk = __inet_lookup(dev_net(skb->dev), &tcp_hashinfo, iph->saddr,
+	sk = __inet_lookup(net, &tcp_hashinfo, iph->saddr,
 			th->source, iph->daddr, th->dest, inet_iif(skb));
 	if (!sk)
 		goto no_tcp_socket;
@@ -1685,7 +1620,7 @@ no_tcp_socket:
 
 	if (skb->len < (th->doff << 2) || tcp_checksum_complete(skb)) {
 bad_packet:
-		TCP_INC_STATS_BH(TCP_MIB_INERRS);
+		TCP_INC_STATS_BH(net, TCP_MIB_INERRS);
 	} else {
 		tcp_v4_send_reset(NULL, skb);
 	}
@@ -1706,7 +1641,7 @@ do_time_wait:
 	}
 
 	if (skb->len < (th->doff << 2) || tcp_checksum_complete(skb)) {
-		TCP_INC_STATS_BH(TCP_MIB_INERRS);
+		TCP_INC_STATS_BH(net, TCP_MIB_INERRS);
 		inet_twsk_put(inet_twsk(sk));
 		goto discard_it;
 	}
@@ -1814,7 +1749,7 @@ struct inet_connection_sock_af_ops ipv4_specific = {
 #ifdef CONFIG_TCP_MD5SIG
 static struct tcp_sock_af_ops tcp_sock_ipv4_specific = {
 	.md5_lookup		= tcp_v4_md5_lookup,
-	.calc_md5_hash		= tcp_v4_calc_md5_hash,
+	.calc_md5_hash		= tcp_v4_md5_hash_skb,
 	.md5_add		= tcp_v4_md5_add_func,
 	.md5_parse		= tcp_v4_parse_md5_keys,
 };
@@ -1871,7 +1806,7 @@ static int tcp_v4_init_sock(struct sock *sk)
 	return 0;
 }
 
-int tcp_v4_destroy_sock(struct sock *sk)
+void tcp_v4_destroy_sock(struct sock *sk)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
 
@@ -1915,8 +1850,6 @@ int tcp_v4_destroy_sock(struct sock *sk)
 	}
 
 	atomic_dec(&tcp_sockets_allocated);
-
-	return 0;
 }
 
 EXPORT_SYMBOL(tcp_v4_destroy_sock);
@@ -1959,8 +1892,7 @@ 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 &&
-				    net_eq(sock_net(req->sk), net)) {
+				if (req->rsk_ops->family == st->family) {
 					cur = req;
 					goto out;
 				}
diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
index 8245247a6ce..204c4216266 100644
--- a/net/ipv4/tcp_minisocks.c
+++ b/net/ipv4/tcp_minisocks.c
@@ -5,8 +5,6 @@
  *
  *		Implementation of the Transmission Control Protocol(TCP).
  *
- * Version:	$Id: tcp_minisocks.c,v 1.15 2002/02/01 22:01:04 davem Exp $
- *
  * Authors:	Ross Biro
  *		Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
  *		Mark Evans, <evansmp@uhura.aston.ac.uk>
@@ -246,7 +244,7 @@ kill:
 	}
 
 	if (paws_reject)
-		NET_INC_STATS_BH(LINUX_MIB_PAWSESTABREJECTED);
+		NET_INC_STATS_BH(twsk_net(tw), LINUX_MIB_PAWSESTABREJECTED);
 
 	if (!th->rst) {
 		/* In this case we must reset the TIMEWAIT timer.
@@ -482,7 +480,7 @@ struct sock *tcp_create_openreq_child(struct sock *sk, struct request_sock *req,
 		newtp->rx_opt.mss_clamp = req->mss;
 		TCP_ECN_openreq_child(newtp, req);
 
-		TCP_INC_STATS_BH(TCP_MIB_PASSIVEOPENS);
+		TCP_INC_STATS_BH(sock_net(sk), TCP_MIB_PASSIVEOPENS);
 	}
 	return newsk;
 }
@@ -613,7 +611,7 @@ struct sock *tcp_check_req(struct sock *sk,struct sk_buff *skb,
 		if (!(flg & TCP_FLAG_RST))
 			req->rsk_ops->send_ack(skb, req);
 		if (paws_reject)
-			NET_INC_STATS_BH(LINUX_MIB_PAWSESTABREJECTED);
+			NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_PAWSESTABREJECTED);
 		return NULL;
 	}
 
@@ -632,7 +630,7 @@ struct sock *tcp_check_req(struct sock *sk,struct sk_buff *skb,
 		 *	   "fourth, check the SYN bit"
 		 */
 		if (flg & (TCP_FLAG_RST|TCP_FLAG_SYN)) {
-			TCP_INC_STATS_BH(TCP_MIB_ATTEMPTFAILS);
+			TCP_INC_STATS_BH(sock_net(sk), TCP_MIB_ATTEMPTFAILS);
 			goto embryonic_reset;
 		}
 
@@ -697,7 +695,7 @@ struct sock *tcp_check_req(struct sock *sk,struct sk_buff *skb,
 		}
 
 	embryonic_reset:
-		NET_INC_STATS_BH(LINUX_MIB_EMBRYONICRSTS);
+		NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_EMBRYONICRSTS);
 		if (!(flg & TCP_FLAG_RST))
 			req->rsk_ops->send_reset(sk, skb);
 
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index ad993ecb481..1fa683c0ba9 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -5,8 +5,6 @@
  *
  *		Implementation of the Transmission Control Protocol(TCP).
  *
- * Version:	$Id: tcp_output.c,v 1.146 2002/02/01 22:01:04 davem Exp $
- *
  * Authors:	Ross Biro
  *		Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
  *		Mark Evans, <evansmp@uhura.aston.ac.uk>
@@ -347,28 +345,82 @@ static void tcp_init_nondata_skb(struct sk_buff *skb, u32 seq, u8 flags)
 	TCP_SKB_CB(skb)->end_seq = seq;
 }
 
-static void tcp_build_and_update_options(__be32 *ptr, struct tcp_sock *tp,
-					 __u32 tstamp, __u8 **md5_hash)
-{
-	if (tp->rx_opt.tstamp_ok) {
+#define OPTION_SACK_ADVERTISE	(1 << 0)
+#define OPTION_TS		(1 << 1)
+#define OPTION_MD5		(1 << 2)
+
+struct tcp_out_options {
+	u8 options;		/* bit field of OPTION_* */
+	u8 ws;			/* window scale, 0 to disable */
+	u8 num_sack_blocks;	/* number of SACK blocks to include */
+	u16 mss;		/* 0 to disable */
+	__u32 tsval, tsecr;	/* need to include OPTION_TS */
+};
+
+static void tcp_options_write(__be32 *ptr, struct tcp_sock *tp,
+			      const struct tcp_out_options *opts,
+			      __u8 **md5_hash) {
+	if (unlikely(OPTION_MD5 & opts->options)) {
+		*ptr++ = htonl((TCPOPT_NOP << 24) |
+			       (TCPOPT_NOP << 16) |
+			       (TCPOPT_MD5SIG << 8) |
+			       TCPOLEN_MD5SIG);
+		*md5_hash = (__u8 *)ptr;
+		ptr += 4;
+	} else {
+		*md5_hash = NULL;
+	}
+
+	if (likely(OPTION_TS & opts->options)) {
+		if (unlikely(OPTION_SACK_ADVERTISE & opts->options)) {
+			*ptr++ = htonl((TCPOPT_SACK_PERM << 24) |
+				       (TCPOLEN_SACK_PERM << 16) |
+				       (TCPOPT_TIMESTAMP << 8) |
+				       TCPOLEN_TIMESTAMP);
+		} else {
+			*ptr++ = htonl((TCPOPT_NOP << 24) |
+				       (TCPOPT_NOP << 16) |
+				       (TCPOPT_TIMESTAMP << 8) |
+				       TCPOLEN_TIMESTAMP);
+		}
+		*ptr++ = htonl(opts->tsval);
+		*ptr++ = htonl(opts->tsecr);
+	}
+
+	if (unlikely(opts->mss)) {
+		*ptr++ = htonl((TCPOPT_MSS << 24) |
+			       (TCPOLEN_MSS << 16) |
+			       opts->mss);
+	}
+
+	if (unlikely(OPTION_SACK_ADVERTISE & opts->options &&
+		     !(OPTION_TS & opts->options))) {
 		*ptr++ = htonl((TCPOPT_NOP << 24) |
 			       (TCPOPT_NOP << 16) |
-			       (TCPOPT_TIMESTAMP << 8) |
-			       TCPOLEN_TIMESTAMP);
-		*ptr++ = htonl(tstamp);
-		*ptr++ = htonl(tp->rx_opt.ts_recent);
+			       (TCPOPT_SACK_PERM << 8) |
+			       TCPOLEN_SACK_PERM);
+	}
+
+	if (unlikely(opts->ws)) {
+		*ptr++ = htonl((TCPOPT_NOP << 24) |
+			       (TCPOPT_WINDOW << 16) |
+			       (TCPOLEN_WINDOW << 8) |
+			       opts->ws);
 	}
-	if (tp->rx_opt.eff_sacks) {
-		struct tcp_sack_block *sp = tp->rx_opt.dsack ? tp->duplicate_sack : tp->selective_acks;
+
+	if (unlikely(opts->num_sack_blocks)) {
+		struct tcp_sack_block *sp = tp->rx_opt.dsack ?
+			tp->duplicate_sack : tp->selective_acks;
 		int this_sack;
 
 		*ptr++ = htonl((TCPOPT_NOP  << 24) |
 			       (TCPOPT_NOP  << 16) |
 			       (TCPOPT_SACK <<  8) |
-			       (TCPOLEN_SACK_BASE + (tp->rx_opt.eff_sacks *
+			       (TCPOLEN_SACK_BASE + (opts->num_sack_blocks *
 						     TCPOLEN_SACK_PERBLOCK)));
 
-		for (this_sack = 0; this_sack < tp->rx_opt.eff_sacks; this_sack++) {
+		for (this_sack = 0; this_sack < opts->num_sack_blocks;
+		     ++this_sack) {
 			*ptr++ = htonl(sp[this_sack].start_seq);
 			*ptr++ = htonl(sp[this_sack].end_seq);
 		}
@@ -378,81 +430,137 @@ static void tcp_build_and_update_options(__be32 *ptr, struct tcp_sock *tp,
 			tp->rx_opt.eff_sacks--;
 		}
 	}
+}
+
+static unsigned tcp_syn_options(struct sock *sk, struct sk_buff *skb,
+				struct tcp_out_options *opts,
+				struct tcp_md5sig_key **md5) {
+	struct tcp_sock *tp = tcp_sk(sk);
+	unsigned size = 0;
+
 #ifdef CONFIG_TCP_MD5SIG
-	if (md5_hash) {
-		*ptr++ = htonl((TCPOPT_NOP << 24) |
-			       (TCPOPT_NOP << 16) |
-			       (TCPOPT_MD5SIG << 8) |
-			       TCPOLEN_MD5SIG);
-		*md5_hash = (__u8 *)ptr;
+	*md5 = tp->af_specific->md5_lookup(sk, sk);
+	if (*md5) {
+		opts->options |= OPTION_MD5;
+		size += TCPOLEN_MD5SIG_ALIGNED;
 	}
+#else
+	*md5 = NULL;
 #endif
+
+	/* We always get an MSS option.  The option bytes which will be seen in
+	 * normal data packets should timestamps be used, must be in the MSS
+	 * advertised.  But we subtract them from tp->mss_cache so that
+	 * calculations in tcp_sendmsg are simpler etc.  So account for this
+	 * fact here if necessary.  If we don't do this correctly, as a
+	 * receiver we won't recognize data packets as being full sized when we
+	 * should, and thus we won't abide by the delayed ACK rules correctly.
+	 * SACKs don't matter, we never delay an ACK when we have any of those
+	 * going out.  */
+	opts->mss = tcp_advertise_mss(sk);
+	size += TCPOLEN_MSS_ALIGNED;
+
+	if (likely(sysctl_tcp_timestamps && *md5 == NULL)) {
+		opts->options |= OPTION_TS;
+		opts->tsval = TCP_SKB_CB(skb)->when;
+		opts->tsecr = tp->rx_opt.ts_recent;
+		size += TCPOLEN_TSTAMP_ALIGNED;
+	}
+	if (likely(sysctl_tcp_window_scaling)) {
+		opts->ws = tp->rx_opt.rcv_wscale;
+		size += TCPOLEN_WSCALE_ALIGNED;
+	}
+	if (likely(sysctl_tcp_sack)) {
+		opts->options |= OPTION_SACK_ADVERTISE;
+		if (unlikely(!OPTION_TS & opts->options))
+			size += TCPOLEN_SACKPERM_ALIGNED;
+	}
+
+	return size;
 }
 
-/* Construct a tcp options header for a SYN or SYN_ACK packet.
- * If this is every changed make sure to change the definition of
- * MAX_SYN_SIZE to match the new maximum number of options that you
- * can generate.
- *
- * Note - that with the RFC2385 TCP option, we make room for the
- * 16 byte MD5 hash. This will be filled in later, so the pointer for the
- * location to be filled is passed back up.
- */
-static void tcp_syn_build_options(__be32 *ptr, int mss, int ts, int sack,
-				  int offer_wscale, int wscale, __u32 tstamp,
-				  __u32 ts_recent, __u8 **md5_hash)
-{
-	/* We always get an MSS option.
-	 * The option bytes which will be seen in normal data
-	 * packets should timestamps be used, must be in the MSS
-	 * advertised.  But we subtract them from tp->mss_cache so
-	 * that calculations in tcp_sendmsg are simpler etc.
-	 * So account for this fact here if necessary.  If we
-	 * don't do this correctly, as a receiver we won't
-	 * recognize data packets as being full sized when we
-	 * should, and thus we won't abide by the delayed ACK
-	 * rules correctly.
-	 * SACKs don't matter, we never delay an ACK when we
-	 * have any of those going out.
-	 */
-	*ptr++ = htonl((TCPOPT_MSS << 24) | (TCPOLEN_MSS << 16) | mss);
-	if (ts) {
-		if (sack)
-			*ptr++ = htonl((TCPOPT_SACK_PERM << 24) |
-				       (TCPOLEN_SACK_PERM << 16) |
-				       (TCPOPT_TIMESTAMP << 8) |
-				       TCPOLEN_TIMESTAMP);
-		else
-			*ptr++ = htonl((TCPOPT_NOP << 24) |
-				       (TCPOPT_NOP << 16) |
-				       (TCPOPT_TIMESTAMP << 8) |
-				       TCPOLEN_TIMESTAMP);
-		*ptr++ = htonl(tstamp);		/* TSVAL */
-		*ptr++ = htonl(ts_recent);	/* TSECR */
-	} else if (sack)
-		*ptr++ = htonl((TCPOPT_NOP << 24) |
-			       (TCPOPT_NOP << 16) |
-			       (TCPOPT_SACK_PERM << 8) |
-			       TCPOLEN_SACK_PERM);
-	if (offer_wscale)
-		*ptr++ = htonl((TCPOPT_NOP << 24) |
-			       (TCPOPT_WINDOW << 16) |
-			       (TCPOLEN_WINDOW << 8) |
-			       (wscale));
+static unsigned tcp_synack_options(struct sock *sk,
+				   struct request_sock *req,
+				   unsigned mss, struct sk_buff *skb,
+				   struct tcp_out_options *opts,
+				   struct tcp_md5sig_key **md5) {
+	unsigned size = 0;
+	struct inet_request_sock *ireq = inet_rsk(req);
+	char doing_ts;
+
 #ifdef CONFIG_TCP_MD5SIG
-	/*
-	 * If MD5 is enabled, then we set the option, and include the size
-	 * (always 18). The actual MD5 hash is added just before the
-	 * packet is sent.
-	 */
-	if (md5_hash) {
-		*ptr++ = htonl((TCPOPT_NOP << 24) |
-			       (TCPOPT_NOP << 16) |
-			       (TCPOPT_MD5SIG << 8) |
-			       TCPOLEN_MD5SIG);
-		*md5_hash = (__u8 *)ptr;
+	*md5 = tcp_rsk(req)->af_specific->md5_lookup(sk, req);
+	if (*md5) {
+		opts->options |= OPTION_MD5;
+		size += TCPOLEN_MD5SIG_ALIGNED;
 	}
+#else
+	*md5 = NULL;
 #endif
+
+	/* we can't fit any SACK blocks in a packet with MD5 + TS
+	   options. There was discussion about disabling SACK rather than TS in
+	   order to fit in better with old, buggy kernels, but that was deemed
+	   to be unnecessary. */
+	doing_ts = ireq->tstamp_ok && !(*md5 && ireq->sack_ok);
+
+	opts->mss = mss;
+	size += TCPOLEN_MSS_ALIGNED;
+
+	if (likely(ireq->wscale_ok)) {
+		opts->ws = ireq->rcv_wscale;
+		size += TCPOLEN_WSCALE_ALIGNED;
+	}
+	if (likely(doing_ts)) {
+		opts->options |= OPTION_TS;
+		opts->tsval = TCP_SKB_CB(skb)->when;
+		opts->tsecr = req->ts_recent;
+		size += TCPOLEN_TSTAMP_ALIGNED;
+	}
+	if (likely(ireq->sack_ok)) {
+		opts->options |= OPTION_SACK_ADVERTISE;
+		if (unlikely(!doing_ts))
+			size += TCPOLEN_SACKPERM_ALIGNED;
+	}
+
+	return size;
+}
+
+static unsigned tcp_established_options(struct sock *sk, struct sk_buff *skb,
+					struct tcp_out_options *opts,
+					struct tcp_md5sig_key **md5) {
+	struct tcp_skb_cb *tcb = skb ? TCP_SKB_CB(skb) : NULL;
+	struct tcp_sock *tp = tcp_sk(sk);
+	unsigned size = 0;
+
+#ifdef CONFIG_TCP_MD5SIG
+	*md5 = tp->af_specific->md5_lookup(sk, sk);
+	if (unlikely(*md5)) {
+		opts->options |= OPTION_MD5;
+		size += TCPOLEN_MD5SIG_ALIGNED;
+	}
+#else
+	*md5 = NULL;
+#endif
+
+	if (likely(tp->rx_opt.tstamp_ok)) {
+		opts->options |= OPTION_TS;
+		opts->tsval = tcb ? tcb->when : 0;
+		opts->tsecr = tp->rx_opt.ts_recent;
+		size += TCPOLEN_TSTAMP_ALIGNED;
+	}
+
+	if (unlikely(tp->rx_opt.eff_sacks)) {
+		const unsigned remaining = MAX_TCP_OPTION_SPACE - size;
+		opts->num_sack_blocks =
+			min_t(unsigned, tp->rx_opt.eff_sacks,
+			      (remaining - TCPOLEN_SACK_BASE_ALIGNED) /
+			      TCPOLEN_SACK_PERBLOCK);
+		size += TCPOLEN_SACK_BASE_ALIGNED +
+			opts->num_sack_blocks * TCPOLEN_SACK_PERBLOCK;
+	}
+
+	return size;
 }
 
 /* This routine actually transmits TCP packets queued in by
@@ -473,13 +581,11 @@ static int tcp_transmit_skb(struct sock *sk, struct sk_buff *skb, int clone_it,
 	struct inet_sock *inet;
 	struct tcp_sock *tp;
 	struct tcp_skb_cb *tcb;
-	int tcp_header_size;
-#ifdef CONFIG_TCP_MD5SIG
+	struct tcp_out_options opts;
+	unsigned tcp_options_size, tcp_header_size;
 	struct tcp_md5sig_key *md5;
 	__u8 *md5_hash_location;
-#endif
 	struct tcphdr *th;
-	int sysctl_flags;
 	int err;
 
 	BUG_ON(!skb || !tcp_skb_pcount(skb));
@@ -502,50 +608,18 @@ static int tcp_transmit_skb(struct sock *sk, struct sk_buff *skb, int clone_it,
 	inet = inet_sk(sk);
 	tp = tcp_sk(sk);
 	tcb = TCP_SKB_CB(skb);
-	tcp_header_size = tp->tcp_header_len;
-
-#define SYSCTL_FLAG_TSTAMPS	0x1
-#define SYSCTL_FLAG_WSCALE	0x2
-#define SYSCTL_FLAG_SACK	0x4
+	memset(&opts, 0, sizeof(opts));
 
-	sysctl_flags = 0;
-	if (unlikely(tcb->flags & TCPCB_FLAG_SYN)) {
-		tcp_header_size = sizeof(struct tcphdr) + TCPOLEN_MSS;
-		if (sysctl_tcp_timestamps) {
-			tcp_header_size += TCPOLEN_TSTAMP_ALIGNED;
-			sysctl_flags |= SYSCTL_FLAG_TSTAMPS;
-		}
-		if (sysctl_tcp_window_scaling) {
-			tcp_header_size += TCPOLEN_WSCALE_ALIGNED;
-			sysctl_flags |= SYSCTL_FLAG_WSCALE;
-		}
-		if (sysctl_tcp_sack) {
-			sysctl_flags |= SYSCTL_FLAG_SACK;
-			if (!(sysctl_flags & SYSCTL_FLAG_TSTAMPS))
-				tcp_header_size += TCPOLEN_SACKPERM_ALIGNED;
-		}
-	} else if (unlikely(tp->rx_opt.eff_sacks)) {
-		/* A SACK is 2 pad bytes, a 2 byte header, plus
-		 * 2 32-bit sequence numbers for each SACK block.
-		 */
-		tcp_header_size += (TCPOLEN_SACK_BASE_ALIGNED +
-				    (tp->rx_opt.eff_sacks *
-				     TCPOLEN_SACK_PERBLOCK));
-	}
+	if (unlikely(tcb->flags & TCPCB_FLAG_SYN))
+		tcp_options_size = tcp_syn_options(sk, skb, &opts, &md5);
+	else
+		tcp_options_size = tcp_established_options(sk, skb, &opts,
+							   &md5);
+	tcp_header_size = tcp_options_size + sizeof(struct tcphdr);
 
 	if (tcp_packets_in_flight(tp) == 0)
 		tcp_ca_event(sk, CA_EVENT_TX_START);
 
-#ifdef CONFIG_TCP_MD5SIG
-	/*
-	 * Are we doing MD5 on this segment? If so - make
-	 * room for it.
-	 */
-	md5 = tp->af_specific->md5_lookup(sk, sk);
-	if (md5)
-		tcp_header_size += TCPOLEN_MD5SIG_ALIGNED;
-#endif
-
 	skb_push(skb, tcp_header_size);
 	skb_reset_transport_header(skb);
 	skb_set_owner_w(skb, sk);
@@ -576,39 +650,16 @@ static int tcp_transmit_skb(struct sock *sk, struct sk_buff *skb, int clone_it,
 		th->urg			= 1;
 	}
 
-	if (unlikely(tcb->flags & TCPCB_FLAG_SYN)) {
-		tcp_syn_build_options((__be32 *)(th + 1),
-				      tcp_advertise_mss(sk),
-				      (sysctl_flags & SYSCTL_FLAG_TSTAMPS),
-				      (sysctl_flags & SYSCTL_FLAG_SACK),
-				      (sysctl_flags & SYSCTL_FLAG_WSCALE),
-				      tp->rx_opt.rcv_wscale,
-				      tcb->when,
-				      tp->rx_opt.ts_recent,
-
-#ifdef CONFIG_TCP_MD5SIG
-				      md5 ? &md5_hash_location :
-#endif
-				      NULL);
-	} else {
-		tcp_build_and_update_options((__be32 *)(th + 1),
-					     tp, tcb->when,
-#ifdef CONFIG_TCP_MD5SIG
-					     md5 ? &md5_hash_location :
-#endif
-					     NULL);
+	tcp_options_write((__be32 *)(th + 1), tp, &opts, &md5_hash_location);
+	if (likely((tcb->flags & TCPCB_FLAG_SYN) == 0))
 		TCP_ECN_send(sk, skb, tcp_header_size);
-	}
 
 #ifdef CONFIG_TCP_MD5SIG
 	/* Calculate the MD5 hash, as we have all we need now */
 	if (md5) {
+		sk->sk_route_caps &= ~NETIF_F_GSO_MASK;
 		tp->af_specific->calc_md5_hash(md5_hash_location,
-					       md5,
-					       sk, NULL, NULL,
-					       tcp_hdr(skb),
-					       sk->sk_protocol,
-					       skb->len);
+					       md5, sk, NULL, skb);
 	}
 #endif
 
@@ -621,7 +672,7 @@ static int tcp_transmit_skb(struct sock *sk, struct sk_buff *skb, int clone_it,
 		tcp_event_data_sent(tp, skb, sk);
 
 	if (after(tcb->end_seq, tp->snd_nxt) || tcb->seq == tcb->end_seq)
-		TCP_INC_STATS(TCP_MIB_OUTSEGS);
+		TCP_INC_STATS(sock_net(sk), TCP_MIB_OUTSEGS);
 
 	err = icsk->icsk_af_ops->queue_xmit(skb, 0);
 	if (likely(err <= 0))
@@ -630,10 +681,6 @@ static int tcp_transmit_skb(struct sock *sk, struct sk_buff *skb, int clone_it,
 	tcp_enter_cwr(sk, 1);
 
 	return net_xmit_eval(err);
-
-#undef SYSCTL_FLAG_TSTAMPS
-#undef SYSCTL_FLAG_WSCALE
-#undef SYSCTL_FLAG_SACK
 }
 
 /* This routine just queue's the buffer
@@ -974,6 +1021,9 @@ unsigned int tcp_current_mss(struct sock *sk, int large_allowed)
 	u32 mss_now;
 	u16 xmit_size_goal;
 	int doing_tso = 0;
+	unsigned header_len;
+	struct tcp_out_options opts;
+	struct tcp_md5sig_key *md5;
 
 	mss_now = tp->mss_cache;
 
@@ -986,14 +1036,16 @@ unsigned int tcp_current_mss(struct sock *sk, int large_allowed)
 			mss_now = tcp_sync_mss(sk, mtu);
 	}
 
-	if (tp->rx_opt.eff_sacks)
-		mss_now -= (TCPOLEN_SACK_BASE_ALIGNED +
-			    (tp->rx_opt.eff_sacks * TCPOLEN_SACK_PERBLOCK));
-
-#ifdef CONFIG_TCP_MD5SIG
-	if (tp->af_specific->md5_lookup(sk, sk))
-		mss_now -= TCPOLEN_MD5SIG_ALIGNED;
-#endif
+	header_len = tcp_established_options(sk, NULL, &opts, &md5) +
+		     sizeof(struct tcphdr);
+	/* The mss_cache is sized based on tp->tcp_header_len, which assumes
+	 * some common options. If this is an odd packet (because we have SACK
+	 * blocks etc) then our calculated header_len will be different, and
+	 * we have to adjust mss_now correspondingly */
+	if (header_len != tp->tcp_header_len) {
+		int delta = (int) header_len - tp->tcp_header_len;
+		mss_now -= delta;
+	}
 
 	xmit_size_goal = mss_now;
 
@@ -1913,7 +1965,7 @@ int tcp_retransmit_skb(struct sock *sk, struct sk_buff *skb)
 
 	if (err == 0) {
 		/* Update global TCP statistics. */
-		TCP_INC_STATS(TCP_MIB_RETRANSSEGS);
+		TCP_INC_STATS(sock_net(sk), TCP_MIB_RETRANSSEGS);
 
 		tp->total_retrans++;
 
@@ -1988,14 +2040,17 @@ void tcp_xmit_retransmit_queue(struct sock *sk)
 
 			if (sacked & TCPCB_LOST) {
 				if (!(sacked & (TCPCB_SACKED_ACKED|TCPCB_SACKED_RETRANS))) {
+					int mib_idx;
+
 					if (tcp_retransmit_skb(sk, skb)) {
 						tp->retransmit_skb_hint = NULL;
 						return;
 					}
 					if (icsk->icsk_ca_state != TCP_CA_Loss)
-						NET_INC_STATS_BH(LINUX_MIB_TCPFASTRETRANS);
+						mib_idx = LINUX_MIB_TCPFASTRETRANS;
 					else
-						NET_INC_STATS_BH(LINUX_MIB_TCPSLOWSTARTRETRANS);
+						mib_idx = LINUX_MIB_TCPSLOWSTARTRETRANS;
+					NET_INC_STATS_BH(sock_net(sk), mib_idx);
 
 					if (skb == tcp_write_queue_head(sk))
 						inet_csk_reset_xmit_timer(sk, ICSK_TIME_RETRANS,
@@ -2065,7 +2120,7 @@ void tcp_xmit_retransmit_queue(struct sock *sk)
 						  inet_csk(sk)->icsk_rto,
 						  TCP_RTO_MAX);
 
-		NET_INC_STATS_BH(LINUX_MIB_TCPFORWARDRETRANS);
+		NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPFORWARDRETRANS);
 	}
 }
 
@@ -2119,7 +2174,7 @@ void tcp_send_active_reset(struct sock *sk, gfp_t priority)
 	/* NOTE: No TCP options attached and we never retransmit this. */
 	skb = alloc_skb(MAX_TCP_HEADER, priority);
 	if (!skb) {
-		NET_INC_STATS(LINUX_MIB_TCPABORTFAILED);
+		NET_INC_STATS(sock_net(sk), LINUX_MIB_TCPABORTFAILED);
 		return;
 	}
 
@@ -2130,9 +2185,9 @@ void tcp_send_active_reset(struct sock *sk, gfp_t priority)
 	/* Send it off. */
 	TCP_SKB_CB(skb)->when = tcp_time_stamp;
 	if (tcp_transmit_skb(sk, skb, 0, priority))
-		NET_INC_STATS(LINUX_MIB_TCPABORTFAILED);
+		NET_INC_STATS(sock_net(sk), LINUX_MIB_TCPABORTFAILED);
 
-	TCP_INC_STATS(TCP_MIB_OUTRSTS);
+	TCP_INC_STATS(sock_net(sk), TCP_MIB_OUTRSTS);
 }
 
 /* WARNING: This routine must only be called when we have already sent
@@ -2180,11 +2235,10 @@ struct sk_buff *tcp_make_synack(struct sock *sk, struct dst_entry *dst,
 	struct tcp_sock *tp = tcp_sk(sk);
 	struct tcphdr *th;
 	int tcp_header_size;
+	struct tcp_out_options opts;
 	struct sk_buff *skb;
-#ifdef CONFIG_TCP_MD5SIG
 	struct tcp_md5sig_key *md5;
 	__u8 *md5_hash_location;
-#endif
 
 	skb = sock_wmalloc(sk, MAX_TCP_HEADER + 15, 1, GFP_ATOMIC);
 	if (skb == NULL)
@@ -2195,18 +2249,27 @@ struct sk_buff *tcp_make_synack(struct sock *sk, struct dst_entry *dst,
 
 	skb->dst = dst_clone(dst);
 
-	tcp_header_size = (sizeof(struct tcphdr) + TCPOLEN_MSS +
-			   (ireq->tstamp_ok ? TCPOLEN_TSTAMP_ALIGNED : 0) +
-			   (ireq->wscale_ok ? TCPOLEN_WSCALE_ALIGNED : 0) +
-			   /* SACK_PERM is in the place of NOP NOP of TS */
-			   ((ireq->sack_ok && !ireq->tstamp_ok) ? TCPOLEN_SACKPERM_ALIGNED : 0));
+	if (req->rcv_wnd == 0) { /* ignored for retransmitted syns */
+		__u8 rcv_wscale;
+		/* Set this up on the first call only */
+		req->window_clamp = tp->window_clamp ? : dst_metric(dst, RTAX_WINDOW);
+		/* tcp_full_space because it is guaranteed to be the first packet */
+		tcp_select_initial_window(tcp_full_space(sk),
+			dst_metric(dst, RTAX_ADVMSS) - (ireq->tstamp_ok ? TCPOLEN_TSTAMP_ALIGNED : 0),
+			&req->rcv_wnd,
+			&req->window_clamp,
+			ireq->wscale_ok,
+			&rcv_wscale);
+		ireq->rcv_wscale = rcv_wscale;
+	}
+
+	memset(&opts, 0, sizeof(opts));
+	TCP_SKB_CB(skb)->when = tcp_time_stamp;
+	tcp_header_size = tcp_synack_options(sk, req,
+					     dst_metric(dst, RTAX_ADVMSS),
+					     skb, &opts, &md5) +
+			  sizeof(struct tcphdr);
 
-#ifdef CONFIG_TCP_MD5SIG
-	/* Are we doing MD5 on this segment? If so - make room for it */
-	md5 = tcp_rsk(req)->af_specific->md5_lookup(sk, req);
-	if (md5)
-		tcp_header_size += TCPOLEN_MD5SIG_ALIGNED;
-#endif
 	skb_push(skb, tcp_header_size);
 	skb_reset_transport_header(skb);
 
@@ -2224,19 +2287,6 @@ struct sk_buff *tcp_make_synack(struct sock *sk, struct dst_entry *dst,
 			     TCPCB_FLAG_SYN | TCPCB_FLAG_ACK);
 	th->seq = htonl(TCP_SKB_CB(skb)->seq);
 	th->ack_seq = htonl(tcp_rsk(req)->rcv_isn + 1);
-	if (req->rcv_wnd == 0) { /* ignored for retransmitted syns */
-		__u8 rcv_wscale;
-		/* Set this up on the first call only */
-		req->window_clamp = tp->window_clamp ? : dst_metric(dst, RTAX_WINDOW);
-		/* tcp_full_space because it is guaranteed to be the first packet */
-		tcp_select_initial_window(tcp_full_space(sk),
-			dst_metric(dst, RTAX_ADVMSS) - (ireq->tstamp_ok ? TCPOLEN_TSTAMP_ALIGNED : 0),
-			&req->rcv_wnd,
-			&req->window_clamp,
-			ireq->wscale_ok,
-			&rcv_wscale);
-		ireq->rcv_wscale = rcv_wscale;
-	}
 
 	/* RFC1323: The window in SYN & SYN/ACK segments is never scaled. */
 	th->window = htons(min(req->rcv_wnd, 65535U));
@@ -2245,29 +2295,15 @@ struct sk_buff *tcp_make_synack(struct sock *sk, struct dst_entry *dst,
 		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,
-			      TCP_SKB_CB(skb)->when,
-			      req->ts_recent,
-			      (
-#ifdef CONFIG_TCP_MD5SIG
-			       md5 ? &md5_hash_location :
-#endif
-			       NULL)
-			      );
-
+	tcp_options_write((__be32 *)(th + 1), tp, &opts, &md5_hash_location);
 	th->doff = (tcp_header_size >> 2);
-	TCP_INC_STATS(TCP_MIB_OUTSEGS);
+	TCP_INC_STATS(sock_net(sk), TCP_MIB_OUTSEGS);
 
 #ifdef CONFIG_TCP_MD5SIG
 	/* Okay, we have all we need - do the md5 hash if needed */
 	if (md5) {
 		tp->af_specific->calc_md5_hash(md5_hash_location,
-					       md5,
-					       NULL, dst, req,
-					       tcp_hdr(skb), sk->sk_protocol,
-					       skb->len);
+					       md5, NULL, req, skb);
 	}
 #endif
 
@@ -2367,7 +2403,7 @@ int tcp_connect(struct sock *sk)
 	 */
 	tp->snd_nxt = tp->write_seq;
 	tp->pushed_seq = tp->write_seq;
-	TCP_INC_STATS(TCP_MIB_ACTIVEOPENS);
+	TCP_INC_STATS(sock_net(sk), TCP_MIB_ACTIVEOPENS);
 
 	/* Timer for repeating the SYN until an answer. */
 	inet_csk_reset_xmit_timer(sk, ICSK_TIME_RETRANS,
diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
index 63ed9d6830e..328e0cf42b3 100644
--- a/net/ipv4/tcp_timer.c
+++ b/net/ipv4/tcp_timer.c
@@ -5,8 +5,6 @@
  *
  *		Implementation of the Transmission Control Protocol(TCP).
  *
- * Version:	$Id: tcp_timer.c,v 1.88 2002/02/01 22:01:04 davem Exp $
- *
  * Authors:	Ross Biro
  *		Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
  *		Mark Evans, <evansmp@uhura.aston.ac.uk>
@@ -50,7 +48,7 @@ static void tcp_write_err(struct sock *sk)
 	sk->sk_error_report(sk);
 
 	tcp_done(sk);
-	NET_INC_STATS_BH(LINUX_MIB_TCPABORTONTIMEOUT);
+	NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPABORTONTIMEOUT);
 }
 
 /* Do not allow orphaned sockets to eat all our resources.
@@ -91,7 +89,7 @@ static int tcp_out_of_resources(struct sock *sk, int do_reset)
 		if (do_reset)
 			tcp_send_active_reset(sk, GFP_ATOMIC);
 		tcp_done(sk);
-		NET_INC_STATS_BH(LINUX_MIB_TCPABORTONMEMORY);
+		NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPABORTONMEMORY);
 		return 1;
 	}
 	return 0;
@@ -181,7 +179,7 @@ static void tcp_delack_timer(unsigned long data)
 	if (sock_owned_by_user(sk)) {
 		/* Try again later. */
 		icsk->icsk_ack.blocked = 1;
-		NET_INC_STATS_BH(LINUX_MIB_DELAYEDACKLOCKED);
+		NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_DELAYEDACKLOCKED);
 		sk_reset_timer(sk, &icsk->icsk_delack_timer, jiffies + TCP_DELACK_MIN);
 		goto out_unlock;
 	}
@@ -200,7 +198,7 @@ static void tcp_delack_timer(unsigned long data)
 	if (!skb_queue_empty(&tp->ucopy.prequeue)) {
 		struct sk_buff *skb;
 
-		NET_INC_STATS_BH(LINUX_MIB_TCPSCHEDULERFAILED);
+		NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPSCHEDULERFAILED);
 
 		while ((skb = __skb_dequeue(&tp->ucopy.prequeue)) != NULL)
 			sk->sk_backlog_rcv(sk, skb);
@@ -220,7 +218,7 @@ static void tcp_delack_timer(unsigned long data)
 			icsk->icsk_ack.ato      = TCP_ATO_MIN;
 		}
 		tcp_send_ack(sk);
-		NET_INC_STATS_BH(LINUX_MIB_DELAYEDACKS);
+		NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_DELAYEDACKS);
 	}
 	TCP_CHECK_TIMER(sk);
 
@@ -328,24 +326,27 @@ static void tcp_retransmit_timer(struct sock *sk)
 		goto out;
 
 	if (icsk->icsk_retransmits == 0) {
+		int mib_idx;
+
 		if (icsk->icsk_ca_state == TCP_CA_Disorder ||
 		    icsk->icsk_ca_state == TCP_CA_Recovery) {
 			if (tcp_is_sack(tp)) {
 				if (icsk->icsk_ca_state == TCP_CA_Recovery)
-					NET_INC_STATS_BH(LINUX_MIB_TCPSACKRECOVERYFAIL);
+					mib_idx = LINUX_MIB_TCPSACKRECOVERYFAIL;
 				else
-					NET_INC_STATS_BH(LINUX_MIB_TCPSACKFAILURES);
+					mib_idx = LINUX_MIB_TCPSACKFAILURES;
 			} else {
 				if (icsk->icsk_ca_state == TCP_CA_Recovery)
-					NET_INC_STATS_BH(LINUX_MIB_TCPRENORECOVERYFAIL);
+					mib_idx = LINUX_MIB_TCPRENORECOVERYFAIL;
 				else
-					NET_INC_STATS_BH(LINUX_MIB_TCPRENOFAILURES);
+					mib_idx = LINUX_MIB_TCPRENOFAILURES;
 			}
 		} else if (icsk->icsk_ca_state == TCP_CA_Loss) {
-			NET_INC_STATS_BH(LINUX_MIB_TCPLOSSFAILURES);
+			mib_idx = LINUX_MIB_TCPLOSSFAILURES;
 		} else {
-			NET_INC_STATS_BH(LINUX_MIB_TCPTIMEOUTS);
+			mib_idx = LINUX_MIB_TCPTIMEOUTS;
 		}
+		NET_INC_STATS_BH(sock_net(sk), mib_idx);
 	}
 
 	if (tcp_use_frto(sk)) {
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 56fcda3694b..a751770947a 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -5,8 +5,6 @@
  *
  *		The User Datagram Protocol (UDP).
  *
- * Version:	$Id: udp.c,v 1.102 2002/02/01 22:01:04 davem Exp $
- *
  * Authors:	Ross Biro
  *		Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
  *		Arnt Gulbrandsen, <agulbra@nvg.unit.no>
@@ -110,9 +108,6 @@
  *	Snmp MIB for the UDP layer
  */
 
-DEFINE_SNMP_STAT(struct udp_mib, udp_statistics) __read_mostly;
-EXPORT_SYMBOL(udp_statistics);
-
 DEFINE_SNMP_STAT(struct udp_mib, udp_stats_in6) __read_mostly;
 EXPORT_SYMBOL(udp_stats_in6);
 
@@ -136,7 +131,7 @@ static inline int __udp_lib_lport_inuse(struct net *net, __u16 num,
 	struct sock *sk;
 	struct hlist_node *node;
 
-	sk_for_each(sk, node, &udptable[num & (UDP_HTABLE_SIZE - 1)])
+	sk_for_each(sk, node, &udptable[udp_hashfn(net, num)])
 		if (net_eq(sock_net(sk), net) && sk->sk_hash == num)
 			return 1;
 	return 0;
@@ -176,7 +171,7 @@ int udp_lib_get_port(struct sock *sk, unsigned short snum,
 		for (i = 0; i < UDP_HTABLE_SIZE; i++) {
 			int size = 0;
 
-			head = &udptable[rover & (UDP_HTABLE_SIZE - 1)];
+			head = &udptable[udp_hashfn(net, rover)];
 			if (hlist_empty(head))
 				goto gotit;
 
@@ -213,7 +208,7 @@ int udp_lib_get_port(struct sock *sk, unsigned short snum,
 gotit:
 		snum = rover;
 	} else {
-		head = &udptable[snum & (UDP_HTABLE_SIZE - 1)];
+		head = &udptable[udp_hashfn(net, snum)];
 
 		sk_for_each(sk2, node, head)
 			if (sk2->sk_hash == snum                             &&
@@ -229,7 +224,7 @@ gotit:
 	inet_sk(sk)->num = snum;
 	sk->sk_hash = snum;
 	if (sk_unhashed(sk)) {
-		head = &udptable[snum & (UDP_HTABLE_SIZE - 1)];
+		head = &udptable[udp_hashfn(net, snum)];
 		sk_add_node(sk, head);
 		sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1);
 	}
@@ -266,7 +261,7 @@ static struct sock *__udp4_lib_lookup(struct net *net, __be32 saddr,
 	int badness = -1;
 
 	read_lock(&udp_hash_lock);
-	sk_for_each(sk, node, &udptable[hnum & (UDP_HTABLE_SIZE - 1)]) {
+	sk_for_each(sk, node, &udptable[udp_hashfn(net, hnum)]) {
 		struct inet_sock *inet = inet_sk(sk);
 
 		if (net_eq(sock_net(sk), net) && sk->sk_hash == hnum &&
@@ -356,11 +351,12 @@ void __udp4_lib_err(struct sk_buff *skb, u32 info, struct hlist_head udptable[])
 	struct sock *sk;
 	int harderr;
 	int err;
+	struct net *net = dev_net(skb->dev);
 
-	sk = __udp4_lib_lookup(dev_net(skb->dev), iph->daddr, uh->dest,
+	sk = __udp4_lib_lookup(net, iph->daddr, uh->dest,
 			iph->saddr, uh->source, skb->dev->ifindex, udptable);
 	if (sk == NULL) {
-		ICMP_INC_STATS_BH(ICMP_MIB_INERRORS);
+		ICMP_INC_STATS_BH(net, ICMP_MIB_INERRORS);
 		return;	/* No socket for error */
 	}
 
@@ -528,7 +524,8 @@ out:
 	up->len = 0;
 	up->pending = 0;
 	if (!err)
-		UDP_INC_STATS_USER(UDP_MIB_OUTDATAGRAMS, is_udplite);
+		UDP_INC_STATS_USER(sock_net(sk),
+				UDP_MIB_OUTDATAGRAMS, is_udplite);
 	return err;
 }
 
@@ -656,11 +653,13 @@ int udp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 				    .uli_u = { .ports =
 					       { .sport = inet->sport,
 						 .dport = dport } } };
+		struct net *net = sock_net(sk);
+
 		security_sk_classify_flow(sk, &fl);
-		err = ip_route_output_flow(sock_net(sk), &rt, &fl, sk, 1);
+		err = ip_route_output_flow(net, &rt, &fl, sk, 1);
 		if (err) {
 			if (err == -ENETUNREACH)
-				IP_INC_STATS_BH(IPSTATS_MIB_OUTNOROUTES);
+				IP_INC_STATS_BH(net, IPSTATS_MIB_OUTNOROUTES);
 			goto out;
 		}
 
@@ -727,7 +726,8 @@ out:
 	 * seems like overkill.
 	 */
 	if (err == -ENOBUFS || test_bit(SOCK_NOSPACE, &sk->sk_socket->flags)) {
-		UDP_INC_STATS_USER(UDP_MIB_SNDBUFERRORS, is_udplite);
+		UDP_INC_STATS_USER(sock_net(sk),
+				UDP_MIB_SNDBUFERRORS, is_udplite);
 	}
 	return err;
 
@@ -890,7 +890,8 @@ try_again:
 		goto out_free;
 
 	if (!peeked)
-		UDP_INC_STATS_USER(UDP_MIB_INDATAGRAMS, is_udplite);
+		UDP_INC_STATS_USER(sock_net(sk),
+				UDP_MIB_INDATAGRAMS, is_udplite);
 
 	sock_recv_timestamp(msg, sk, skb);
 
@@ -919,7 +920,7 @@ out:
 csum_copy_err:
 	lock_sock(sk);
 	if (!skb_kill_datagram(sk, skb, flags))
-		UDP_INC_STATS_USER(UDP_MIB_INERRORS, is_udplite);
+		UDP_INC_STATS_USER(sock_net(sk), UDP_MIB_INERRORS, is_udplite);
 	release_sock(sk);
 
 	if (noblock)
@@ -990,7 +991,8 @@ int udp_queue_rcv_skb(struct sock * sk, struct sk_buff *skb)
 
 			ret = (*up->encap_rcv)(sk, skb);
 			if (ret <= 0) {
-				UDP_INC_STATS_BH(UDP_MIB_INDATAGRAMS,
+				UDP_INC_STATS_BH(sock_net(sk),
+						 UDP_MIB_INDATAGRAMS,
 						 is_udplite);
 				return -ret;
 			}
@@ -1042,15 +1044,18 @@ int udp_queue_rcv_skb(struct sock * sk, struct sk_buff *skb)
 
 	if ((rc = sock_queue_rcv_skb(sk,skb)) < 0) {
 		/* Note that an ENOMEM error is charged twice */
-		if (rc == -ENOMEM)
-			UDP_INC_STATS_BH(UDP_MIB_RCVBUFERRORS, is_udplite);
+		if (rc == -ENOMEM) {
+			UDP_INC_STATS_BH(sock_net(sk),
+					UDP_MIB_RCVBUFERRORS, is_udplite);
+			atomic_inc(&sk->sk_drops);
+		}
 		goto drop;
 	}
 
 	return 0;
 
 drop:
-	UDP_INC_STATS_BH(UDP_MIB_INERRORS, is_udplite);
+	UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS, is_udplite);
 	kfree_skb(skb);
 	return -1;
 }
@@ -1061,7 +1066,7 @@ drop:
  *	Note: called only from the BH handler context,
  *	so we don't need to lock the hashes.
  */
-static int __udp4_lib_mcast_deliver(struct sk_buff *skb,
+static int __udp4_lib_mcast_deliver(struct net *net, struct sk_buff *skb,
 				    struct udphdr  *uh,
 				    __be32 saddr, __be32 daddr,
 				    struct hlist_head udptable[])
@@ -1070,7 +1075,7 @@ static int __udp4_lib_mcast_deliver(struct sk_buff *skb,
 	int dif;
 
 	read_lock(&udp_hash_lock);
-	sk = sk_head(&udptable[ntohs(uh->dest) & (UDP_HTABLE_SIZE - 1)]);
+	sk = sk_head(&udptable[udp_hashfn(net, ntohs(uh->dest))]);
 	dif = skb->dev->ifindex;
 	sk = udp_v4_mcast_next(sk, uh->dest, daddr, uh->source, saddr, dif);
 	if (sk) {
@@ -1158,6 +1163,7 @@ int __udp4_lib_rcv(struct sk_buff *skb, struct hlist_head udptable[],
 	struct rtable *rt = (struct rtable*)skb->dst;
 	__be32 saddr = ip_hdr(skb)->saddr;
 	__be32 daddr = ip_hdr(skb)->daddr;
+	struct net *net = dev_net(skb->dev);
 
 	/*
 	 *  Validate the packet.
@@ -1180,9 +1186,10 @@ int __udp4_lib_rcv(struct sk_buff *skb, struct hlist_head udptable[],
 		goto csum_error;
 
 	if (rt->rt_flags & (RTCF_BROADCAST|RTCF_MULTICAST))
-		return __udp4_lib_mcast_deliver(skb, uh, saddr, daddr, udptable);
+		return __udp4_lib_mcast_deliver(net, skb, uh,
+				saddr, daddr, udptable);
 
-	sk = __udp4_lib_lookup(dev_net(skb->dev), saddr, uh->source, daddr,
+	sk = __udp4_lib_lookup(net, saddr, uh->source, daddr,
 			uh->dest, inet_iif(skb), udptable);
 
 	if (sk != NULL) {
@@ -1211,7 +1218,7 @@ int __udp4_lib_rcv(struct sk_buff *skb, struct hlist_head udptable[],
 	if (udp_lib_checksum_complete(skb))
 		goto csum_error;
 
-	UDP_INC_STATS_BH(UDP_MIB_NOPORTS, proto == IPPROTO_UDPLITE);
+	UDP_INC_STATS_BH(net, UDP_MIB_NOPORTS, proto == IPPROTO_UDPLITE);
 	icmp_send(skb, ICMP_DEST_UNREACH, ICMP_PORT_UNREACH, 0);
 
 	/*
@@ -1245,7 +1252,7 @@ csum_error:
 		       ntohs(uh->dest),
 		       ulen);
 drop:
-	UDP_INC_STATS_BH(UDP_MIB_INERRORS, proto == IPPROTO_UDPLITE);
+	UDP_INC_STATS_BH(net, UDP_MIB_INERRORS, proto == IPPROTO_UDPLITE);
 	kfree_skb(skb);
 	return 0;
 }
@@ -1255,12 +1262,11 @@ int udp_rcv(struct sk_buff *skb)
 	return __udp4_lib_rcv(skb, udp_hash, IPPROTO_UDP);
 }
 
-int udp_destroy_sock(struct sock *sk)
+void udp_destroy_sock(struct sock *sk)
 {
 	lock_sock(sk);
 	udp_flush_pending_frames(sk);
 	release_sock(sk);
-	return 0;
 }
 
 /*
@@ -1453,7 +1459,8 @@ unsigned int udp_poll(struct file *file, struct socket *sock, poll_table *wait)
 		spin_lock_bh(&rcvq->lock);
 		while ((skb = skb_peek(rcvq)) != NULL &&
 		       udp_lib_checksum_complete(skb)) {
-			UDP_INC_STATS_BH(UDP_MIB_INERRORS, is_lite);
+			UDP_INC_STATS_BH(sock_net(sk),
+					UDP_MIB_INERRORS, is_lite);
 			__skb_unlink(skb, rcvq);
 			kfree_skb(skb);
 		}
@@ -1629,12 +1636,13 @@ static void udp4_format_sock(struct sock *sp, struct seq_file *f,
 	__u16 srcp	  = ntohs(inet->sport);
 
 	seq_printf(f, "%4d: %08X:%04X %08X:%04X"
-		" %02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %p%n",
+		" %02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %p %d%n",
 		bucket, src, srcp, dest, destp, sp->sk_state,
 		atomic_read(&sp->sk_wmem_alloc),
 		atomic_read(&sp->sk_rmem_alloc),
 		0, 0L, 0, sock_i_uid(sp), 0, sock_i_ino(sp),
-		atomic_read(&sp->sk_refcnt), sp, len);
+		atomic_read(&sp->sk_refcnt), sp,
+		atomic_read(&sp->sk_drops), len);
 }
 
 int udp4_seq_show(struct seq_file *seq, void *v)
@@ -1643,7 +1651,7 @@ int udp4_seq_show(struct seq_file *seq, void *v)
 		seq_printf(seq, "%-127s\n",
 			   "  sl  local_address rem_address   st tx_queue "
 			   "rx_queue tr tm->when retrnsmt   uid  timeout "
-			   "inode");
+			   "inode ref pointer drops");
 	else {
 		struct udp_iter_state *state = seq->private;
 		int len;
diff --git a/net/ipv4/udp_impl.h b/net/ipv4/udp_impl.h
index 7288bf7977f..2e9bad2fa1b 100644
--- a/net/ipv4/udp_impl.h
+++ b/net/ipv4/udp_impl.h
@@ -26,7 +26,7 @@ extern int	udp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 extern int	udp_sendpage(struct sock *sk, struct page *page, int offset,
 			     size_t size, int flags);
 extern int	udp_queue_rcv_skb(struct sock * sk, struct sk_buff *skb);
-extern int	udp_destroy_sock(struct sock *sk);
+extern void	udp_destroy_sock(struct sock *sk);
 
 #ifdef CONFIG_PROC_FS
 extern int	udp4_seq_show(struct seq_file *seq, void *v);
diff --git a/net/ipv4/udplite.c b/net/ipv4/udplite.c
index 72ce26b6c4d..3c807964da9 100644
--- a/net/ipv4/udplite.c
+++ b/net/ipv4/udplite.c
@@ -1,8 +1,6 @@
 /*
  *  UDPLITE     An implementation of the UDP-Lite protocol (RFC 3828).
  *
- *  Version:    $Id: udplite.c,v 1.25 2006/10/19 07:22:36 gerrit Exp $
- *
  *  Authors:    Gerrit Renker       <gerrit@erg.abdn.ac.uk>
  *
  *  Changes:
@@ -13,7 +11,6 @@
  *		2 of the License, or (at your option) any later version.
  */
 #include "udp_impl.h"
-DEFINE_SNMP_STAT(struct udp_mib, udplite_statistics)	__read_mostly;
 
 struct hlist_head 	udplite_hash[UDP_HTABLE_SIZE];
author	Ingo Molnar <mingo@elte.hu>	2008-07-21 15:06:09 +0200
committer	Ingo Molnar <mingo@elte.hu>	2008-07-21 15:06:09 +0200
commit	e66d90fb4abd0a27ee96f57a32fb561221c4d6ae (patch)
tree	3337cba94c7444b06fdb0e8b487287d07b71f4a0 /net/ipv4
parent	55ca089e2579de90f048aca2a3030b8b2f864813 (diff)
parent	14b395e35d1afdd8019d11b92e28041fad591b71 (diff)