add generic 2.6.28 patches

SVN-Revision: 13546

1 files changed, 914 insertions, 0 deletions

diff --git a/target/linux/generic-2.6/patches-2.6.28/150-netfilter_imq.patch b/target/linux/generic-2.6/patches-2.6.28/150-netfilter_imq.patch
new file mode 100644
index 0000000000..bce33fbb79
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.28/150-netfilter_imq.patch
@@ -0,0 +1,914 @@
+--- /dev/null
++++ b/drivers/net/imq.c
+@@ -0,0 +1,474 @@
++/*
++ *             Pseudo-driver for the intermediate queue device.
++ *
++ *             This program is free software; you can redistribute it and/or
++ *             modify it under the terms of the GNU General Public License
++ *             as published by the Free Software Foundation; either version
++ *             2 of the License, or (at your option) any later version.
++ *
++ * Authors:    Patrick McHardy, <kaber@trash.net>
++ *
++ *            The first version was written by Martin Devera, <devik@cdi.cz>
++ *
++ * Credits:    Jan Rafaj <imq2t@cedric.vabo.cz>
++ *              - Update patch to 2.4.21
++ *             Sebastian Strollo <sstrollo@nortelnetworks.com>
++ *              - Fix "Dead-loop on netdevice imq"-issue
++ *             Marcel Sebek <sebek64@post.cz>
++ *              - Update to 2.6.2-rc1
++ *
++ *	       After some time of inactivity there is a group taking care
++ *	       of IMQ again: http://www.linuximq.net
++ *
++ *
++ *	       2004/06/30 - New version of IMQ patch to kernels <=2.6.7
++ *             including the following changes:
++ *
++ *	       - Correction of ipv6 support "+"s issue (Hasso Tepper)
++ *	       - Correction of imq_init_devs() issue that resulted in
++ *	       kernel OOPS unloading IMQ as module (Norbert Buchmuller)
++ *	       - Addition of functionality to choose number of IMQ devices
++ *	       during kernel config (Andre Correa)
++ *	       - Addition of functionality to choose how IMQ hooks on
++ *	       PRE and POSTROUTING (after or before NAT) (Andre Correa)
++ *	       - Cosmetic corrections (Norbert Buchmuller) (Andre Correa)
++ *
++ *
++ *             2005/12/16 - IMQ versions between 2.6.7 and 2.6.13 were
++ *             released with almost no problems. 2.6.14-x was released
++ *             with some important changes: nfcache was removed; After
++ *             some weeks of trouble we figured out that some IMQ fields
++ *             in skb were missing in skbuff.c - skb_clone and copy_skb_header.
++ *             These functions are correctly patched by this new patch version.
++ *
++ *             Thanks for all who helped to figure out all the problems with
++ *             2.6.14.x: Patrick McHardy, Rune Kock, VeNoMouS, Max CtRiX,
++ *             Kevin Shanahan, Richard Lucassen, Valery Dachev (hopefully
++ *             I didn't forget anybody). I apologize again for my lack of time.
++ *
++ *
++ *             2008/06/17 - 2.6.25 - Changed imq.c to use qdisc_run() instead
++ *	       of qdisc_restart() and moved qdisc_run() to tasklet to avoid
++ *             recursive locking. New initialization routines to fix 'rmmod' not
++ *             working anymore. Used code from ifb.c. (Jussi Kivilinna)
++ *
++ *	       Also, many thanks to pablo Sebastian Greco for making the initial
++ *	       patch and to those who helped the testing.
++ *
++ *             More info at: http://www.linuximq.net/ (Andre Correa)
++ */
++
++#include <linux/module.h>
++#include <linux/kernel.h>
++#include <linux/moduleparam.h>
++#include <linux/skbuff.h>
++#include <linux/netdevice.h>
++#include <linux/rtnetlink.h>
++#include <linux/if_arp.h>
++#include <linux/netfilter.h>
++#include <linux/netfilter_ipv4.h>
++#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
++	#include <linux/netfilter_ipv6.h>
++#endif
++#include <linux/imq.h>
++#include <net/pkt_sched.h>
++#include <net/netfilter/nf_queue.h>
++
++struct imq_private {
++	struct tasklet_struct tasklet;
++	unsigned long tasklet_pending;
++};
++
++static nf_hookfn imq_nf_hook;
++
++static struct nf_hook_ops imq_ingress_ipv4 = {
++	.hook		= imq_nf_hook,
++	.owner		= THIS_MODULE,
++	.pf		= PF_INET,
++	.hooknum	= NF_INET_PRE_ROUTING,
++#if defined(CONFIG_IMQ_BEHAVIOR_BA) || defined(CONFIG_IMQ_BEHAVIOR_BB)
++	.priority	= NF_IP_PRI_MANGLE + 1
++#else
++	.priority	= NF_IP_PRI_NAT_DST + 1
++#endif
++};
++
++static struct nf_hook_ops imq_egress_ipv4 = {
++	.hook		= imq_nf_hook,
++	.owner		= THIS_MODULE,
++	.pf		= PF_INET,
++	.hooknum	= NF_INET_POST_ROUTING,
++#if defined(CONFIG_IMQ_BEHAVIOR_AA) || defined(CONFIG_IMQ_BEHAVIOR_BA)
++	.priority	= NF_IP_PRI_LAST
++#else
++	.priority	= NF_IP_PRI_NAT_SRC - 1
++#endif
++};
++
++#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
++static struct nf_hook_ops imq_ingress_ipv6 = {
++	.hook		= imq_nf_hook,
++	.owner		= THIS_MODULE,
++	.pf		= PF_INET6,
++	.hooknum	= NF_INET_PRE_ROUTING,
++#if defined(CONFIG_IMQ_BEHAVIOR_BA) || defined(CONFIG_IMQ_BEHAVIOR_BB)
++	.priority	= NF_IP6_PRI_MANGLE + 1
++#else
++	.priority	= NF_IP6_PRI_NAT_DST + 1
++#endif
++};
++
++static struct nf_hook_ops imq_egress_ipv6 = {
++	.hook		= imq_nf_hook,
++	.owner		= THIS_MODULE,
++	.pf		= PF_INET6,
++	.hooknum	= NF_INET_POST_ROUTING,
++#if defined(CONFIG_IMQ_BEHAVIOR_AA) || defined(CONFIG_IMQ_BEHAVIOR_BA)
++	.priority	= NF_IP6_PRI_LAST
++#else
++	.priority	= NF_IP6_PRI_NAT_SRC - 1
++#endif
++};
++#endif
++
++#if defined(CONFIG_IMQ_NUM_DEVS)
++static unsigned int numdevs = CONFIG_IMQ_NUM_DEVS;
++#else
++static unsigned int numdevs = IMQ_MAX_DEVS;
++#endif
++
++static struct net_device *imq_devs_cache[IMQ_MAX_DEVS];
++
++static struct net_device_stats *imq_get_stats(struct net_device *dev)
++{
++	return &dev->stats;
++}
++
++/* called for packets kfree'd in qdiscs at places other than enqueue */
++static void imq_skb_destructor(struct sk_buff *skb)
++{
++	struct nf_queue_entry *entry = skb->nf_queue_entry;
++
++	if (entry) {
++		if (entry->indev)
++			dev_put(entry->indev);
++		if (entry->outdev)
++			dev_put(entry->outdev);
++		kfree(entry);
++	}
++}
++
++static int imq_dev_xmit(struct sk_buff *skb, struct net_device *dev)
++{
++	dev->stats.tx_bytes += skb->len;
++	dev->stats.tx_packets++;
++
++	skb->imq_flags = 0;
++	skb->destructor = NULL;
++
++	dev->trans_start = jiffies;
++	nf_reinject(skb->nf_queue_entry, NF_ACCEPT);
++	return 0;
++}
++
++static int imq_nf_queue(struct nf_queue_entry *entry, unsigned queue_num)
++{
++	struct net_device *dev;
++	struct imq_private *priv;
++	struct sk_buff *skb2 = NULL;
++	struct Qdisc *q;
++	unsigned int index = entry->skb->imq_flags & IMQ_F_IFMASK;
++	int ret = -1;
++
++	if (index > numdevs)
++		return -1;
++
++	/* check for imq device by index from cache */
++	dev = imq_devs_cache[index];
++	if (!dev) {
++		char buf[8];
++
++		/* get device by name and cache result */
++		snprintf(buf, sizeof(buf), "imq%d", index);
++		dev = dev_get_by_name(&init_net, buf);
++		if (!dev) {
++			/* not found ?!*/
++			BUG();
++			return -1;
++		}
++
++		imq_devs_cache[index] = dev;
++	}
++
++	priv = netdev_priv(dev);
++	if (!(dev->flags & IFF_UP)) {
++		entry->skb->imq_flags = 0;
++		nf_reinject(entry, NF_ACCEPT);
++		return 0;
++	}
++	dev->last_rx = jiffies;
++
++	if (entry->skb->destructor) {
++		skb2 = entry->skb;
++		entry->skb = skb_clone(entry->skb, GFP_ATOMIC);
++		if (!entry->skb)
++			return -1;
++	}
++	entry->skb->nf_queue_entry = entry;
++
++	dev->stats.rx_bytes += entry->skb->len;
++	dev->stats.rx_packets++;
++
++	spin_lock_bh(&dev->queue_lock);
++	q = dev->qdisc;
++	if (q->enqueue) {
++		q->enqueue(skb_get(entry->skb), q);
++		if (skb_shared(entry->skb)) {
++			entry->skb->destructor = imq_skb_destructor;
++			kfree_skb(entry->skb);
++			ret = 0;
++		}
++	}
++	if (!test_and_set_bit(1, &priv->tasklet_pending))
++		tasklet_schedule(&priv->tasklet);
++	spin_unlock_bh(&dev->queue_lock);
++
++	if (skb2)
++		kfree_skb(ret ? entry->skb : skb2);
++
++	return ret;
++}
++
++static struct nf_queue_handler nfqh = {
++	.name  = "imq",
++	.outfn = imq_nf_queue,
++};
++
++static void qdisc_run_tasklet(unsigned long arg)
++{
++	struct net_device *dev = (struct net_device *)arg;
++	struct imq_private *priv = netdev_priv(dev);
++
++	spin_lock(&dev->queue_lock);
++	qdisc_run(dev);
++	clear_bit(1, &priv->tasklet_pending);
++	spin_unlock(&dev->queue_lock);
++}
++
++static unsigned int imq_nf_hook(unsigned int hook, struct sk_buff *pskb,
++				const struct net_device *indev,
++				const struct net_device *outdev,
++				int (*okfn)(struct sk_buff *))
++{
++	if (pskb->imq_flags & IMQ_F_ENQUEUE)
++		return NF_QUEUE;
++
++	return NF_ACCEPT;
++}
++
++static int imq_close(struct net_device *dev)
++{
++	struct imq_private *priv = netdev_priv(dev);
++
++	tasklet_kill(&priv->tasklet);
++	netif_stop_queue(dev);
++
++	return 0;
++}
++
++static int imq_open(struct net_device *dev)
++{
++	struct imq_private *priv = netdev_priv(dev);
++
++	tasklet_init(&priv->tasklet, qdisc_run_tasklet, (unsigned long)dev);
++	netif_start_queue(dev);
++
++	return 0;
++}
++
++static void imq_setup(struct net_device *dev)
++{
++	dev->hard_start_xmit    = imq_dev_xmit;
++	dev->open		= imq_open;
++	dev->get_stats		= imq_get_stats;
++	dev->stop		= imq_close;
++	dev->type               = ARPHRD_VOID;
++	dev->mtu                = 16000;
++	dev->tx_queue_len       = 11000;
++	dev->flags              = IFF_NOARP;
++}
++
++static struct rtnl_link_ops imq_link_ops __read_mostly = {
++	.kind		= "imq",
++	.priv_size	= sizeof(struct imq_private),
++	.setup		= imq_setup,
++};
++
++static int __init imq_init_hooks(void)
++{
++	int err;
++
++	err = nf_register_queue_handler(PF_INET, &nfqh);
++	if (err)
++		goto err1;
++
++	err = nf_register_hook(&imq_ingress_ipv4);
++	if (err)
++		goto err2;
++
++	err = nf_register_hook(&imq_egress_ipv4);
++	if (err)
++		goto err3;
++
++#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
++	err = nf_register_queue_handler(PF_INET6, &nfqh);
++	if (err)
++		goto err4;
++
++	err = nf_register_hook(&imq_ingress_ipv6);
++	if (err)
++		goto err5;
++
++	err = nf_register_hook(&imq_egress_ipv6);
++	if (err)
++		goto err6;
++#endif
++
++	return 0;
++
++#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
++err6:
++	nf_unregister_hook(&imq_ingress_ipv6);
++err5:
++	nf_unregister_queue_handler(PF_INET6, &nfqh);
++err4:
++	nf_unregister_hook(&imq_egress_ipv4);
++#endif
++err3:
++	nf_unregister_hook(&imq_ingress_ipv4);
++err2:
++	nf_unregister_queue_handler(PF_INET, &nfqh);
++err1:
++	return err;
++}
++
++static int __init imq_init_one(int index)
++{
++	struct net_device *dev;
++	int ret;
++
++	dev = alloc_netdev(sizeof(struct imq_private), "imq%d", imq_setup);
++	if (!dev)
++		return -ENOMEM;
++
++	ret = dev_alloc_name(dev, dev->name);
++	if (ret < 0)
++		goto fail;
++
++	dev->rtnl_link_ops = &imq_link_ops;
++	ret = register_netdevice(dev);
++	if (ret < 0)
++		goto fail;
++
++	return 0;
++fail:
++	free_netdev(dev);
++	return ret;
++}
++
++static int __init imq_init_devs(void)
++{
++	int err, i;
++
++	if (!numdevs || numdevs > IMQ_MAX_DEVS) {
++		printk(KERN_ERR "IMQ: numdevs has to be betweed 1 and %u\n",
++		       IMQ_MAX_DEVS);
++		return -EINVAL;
++	}
++
++	rtnl_lock();
++	err = __rtnl_link_register(&imq_link_ops);
++
++	for (i = 0; i < numdevs && !err; i++)
++		err = imq_init_one(i);
++
++	if (err) {
++		__rtnl_link_unregister(&imq_link_ops);
++		memset(imq_devs_cache, 0, sizeof(imq_devs_cache));
++	}
++	rtnl_unlock();
++
++	return err;
++}
++
++static int __init imq_init_module(void)
++{
++	int err;
++
++	err = imq_init_devs();
++	if (err) {
++		printk(KERN_ERR "IMQ: Error trying imq_init_devs(net)\n");
++		return err;
++	}
++
++	err = imq_init_hooks();
++	if (err) {
++		printk(KERN_ERR "IMQ: Error trying imq_init_hooks()\n");
++		rtnl_link_unregister(&imq_link_ops);
++		memset(imq_devs_cache, 0, sizeof(imq_devs_cache));
++		return err;
++	}
++
++	printk(KERN_INFO "IMQ driver loaded successfully.\n");
++
++#if defined(CONFIG_IMQ_BEHAVIOR_BA) || defined(CONFIG_IMQ_BEHAVIOR_BB)
++	printk(KERN_INFO "\tHooking IMQ before NAT on PREROUTING.\n");
++#else
++	printk(KERN_INFO "\tHooking IMQ after NAT on PREROUTING.\n");
++#endif
++#if defined(CONFIG_IMQ_BEHAVIOR_AB) || defined(CONFIG_IMQ_BEHAVIOR_BB)
++	printk(KERN_INFO "\tHooking IMQ before NAT on POSTROUTING.\n");
++#else
++	printk(KERN_INFO "\tHooking IMQ after NAT on POSTROUTING.\n");
++#endif
++
++	return 0;
++}
++
++static void __exit imq_unhook(void)
++{
++#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
++	nf_unregister_hook(&imq_ingress_ipv6);
++	nf_unregister_hook(&imq_egress_ipv6);
++	nf_unregister_queue_handler(PF_INET6, &nfqh);
++#endif
++	nf_unregister_hook(&imq_ingress_ipv4);
++	nf_unregister_hook(&imq_egress_ipv4);
++	nf_unregister_queue_handler(PF_INET, &nfqh);
++}
++
++static void __exit imq_cleanup_devs(void)
++{
++	rtnl_link_unregister(&imq_link_ops);
++	memset(imq_devs_cache, 0, sizeof(imq_devs_cache));
++}
++
++static void __exit imq_exit_module(void)
++{
++	imq_unhook();
++	imq_cleanup_devs();
++	printk(KERN_INFO "IMQ driver unloaded successfully.\n");
++}
++
++module_init(imq_init_module);
++module_exit(imq_exit_module);
++
++module_param(numdevs, int, 0);
++MODULE_PARM_DESC(numdevs, "number of IMQ devices (how many imq* devices will "
++			"be created)");
++MODULE_AUTHOR("http://www.linuximq.net");
++MODULE_DESCRIPTION("Pseudo-driver for the intermediate queue device. See "
++			"http://www.linuximq.net/ for more information.");
++MODULE_LICENSE("GPL");
++MODULE_ALIAS_RTNL_LINK("imq");
++
+--- a/drivers/net/Kconfig
++++ b/drivers/net/Kconfig
+@@ -109,6 +109,129 @@ config EQUALIZER
+ 	  To compile this driver as a module, choose M here: the module
+ 	  will be called eql.  If unsure, say N.
+ 
++config IMQ
++	tristate "IMQ (intermediate queueing device) support"
++	depends on NETDEVICES && NETFILTER
++	---help---
++	  The IMQ device(s) is used as placeholder for QoS queueing
++	  disciplines. Every packet entering/leaving the IP stack can be
++	  directed through the IMQ device where it's enqueued/dequeued to the
++	  attached qdisc. This allows you to treat network devices as classes
++	  and distribute bandwidth among them. Iptables is used to specify
++	  through which IMQ device, if any, packets travel.
++
++	  More information at: http://www.linuximq.net/
++
++	  To compile this driver as a module, choose M here: the module
++	  will be called imq.  If unsure, say N.
++
++choice
++	prompt "IMQ behavior (PRE/POSTROUTING)"
++	depends on IMQ
++	default IMQ_BEHAVIOR_AB
++	help
++
++		This settings defines how IMQ behaves in respect to its
++		hooking in PREROUTING and POSTROUTING.
++
++		IMQ can work in any of the following ways:
++
++		    PREROUTING   |      POSTROUTING
++		-----------------|-------------------
++		#1  After NAT    |      After NAT
++		#2  After NAT    |      Before NAT
++		#3  Before NAT   |      After NAT
++		#4  Before NAT   |      Before NAT
++
++		The default behavior is to hook before NAT on PREROUTING
++		and after NAT on POSTROUTING (#3).
++
++		This settings are specially usefull when trying to use IMQ
++		to shape NATed clients.
++
++		More information can be found at: www.linuximq.net
++
++		If not sure leave the default settings alone.
++
++config IMQ_BEHAVIOR_AA
++	bool "IMQ AA"
++	help
++		This settings defines how IMQ behaves in respect to its
++		hooking in PREROUTING and POSTROUTING.
++
++		Choosing this option will make IMQ hook like this:
++
++		PREROUTING:   After NAT
++		POSTROUTING:  After NAT
++
++		More information can be found at: www.linuximq.net
++
++		If not sure leave the default settings alone.
++
++config IMQ_BEHAVIOR_AB
++	bool "IMQ AB"
++	help
++		This settings defines how IMQ behaves in respect to its
++		hooking in PREROUTING and POSTROUTING.
++
++		Choosing this option will make IMQ hook like this:
++
++		PREROUTING:   After NAT
++		POSTROUTING:  Before NAT
++
++		More information can be found at: www.linuximq.net
++
++		If not sure leave the default settings alone.
++
++config IMQ_BEHAVIOR_BA
++	bool "IMQ BA"
++	help
++		This settings defines how IMQ behaves in respect to its
++		hooking in PREROUTING and POSTROUTING.
++
++		Choosing this option will make IMQ hook like this:
++
++		PREROUTING:   Before NAT
++		POSTROUTING:  After NAT
++
++		More information can be found at: www.linuximq.net
++
++		If not sure leave the default settings alone.
++
++config IMQ_BEHAVIOR_BB
++	bool "IMQ BB"
++	help
++		This settings defines how IMQ behaves in respect to its
++		hooking in PREROUTING and POSTROUTING.
++
++		Choosing this option will make IMQ hook like this:
++
++		PREROUTING:   Before NAT
++		POSTROUTING:  Before NAT
++
++		More information can be found at: www.linuximq.net
++
++		If not sure leave the default settings alone.
++
++endchoice
++
++config IMQ_NUM_DEVS
++
++	int "Number of IMQ devices"
++	range 2 16
++	depends on IMQ
++	default "16"
++	help
++
++		This settings defines how many IMQ devices will be
++		created.
++
++		The default value is 16.
++
++		More information can be found at: www.linuximq.net
++
++		If not sure leave the default settings alone.
++
+ config TUN
+ 	tristate "Universal TUN/TAP device driver support"
+ 	select CRC32
+--- a/drivers/net/Makefile
++++ b/drivers/net/Makefile
+@@ -148,6 +148,7 @@ obj-$(CONFIG_SLHC) += slhc.o
+ obj-$(CONFIG_XEN_NETDEV_FRONTEND) += xen-netfront.o
+ 
+ obj-$(CONFIG_DUMMY) += dummy.o
++obj-$(CONFIG_IMQ) += imq.o
+ obj-$(CONFIG_IFB) += ifb.o
+ obj-$(CONFIG_MACVLAN) += macvlan.o
+ obj-$(CONFIG_DE600) += de600.o
+--- /dev/null
++++ b/include/linux/imq.h
+@@ -0,0 +1,9 @@
++#ifndef _IMQ_H
++#define _IMQ_H
++
++#define IMQ_MAX_DEVS   16
++
++#define IMQ_F_IFMASK   0x7f
++#define IMQ_F_ENQUEUE  0x80
++
++#endif /* _IMQ_H */
+--- /dev/null
++++ b/include/linux/netfilter_ipv4/ipt_IMQ.h
+@@ -0,0 +1,8 @@
++#ifndef _IPT_IMQ_H
++#define _IPT_IMQ_H
++
++struct ipt_imq_info {
++	unsigned int todev;     /* target imq device */
++};
++
++#endif /* _IPT_IMQ_H */
+--- /dev/null
++++ b/include/linux/netfilter_ipv6/ip6t_IMQ.h
+@@ -0,0 +1,8 @@
++#ifndef _IP6T_IMQ_H
++#define _IP6T_IMQ_H
++
++struct ip6t_imq_info {
++	unsigned int todev;     /* target imq device */
++};
++
++#endif /* _IP6T_IMQ_H */
+--- a/include/linux/skbuff.h
++++ b/include/linux/skbuff.h
+@@ -308,6 +308,10 @@ struct sk_buff {
+ 	struct nf_conntrack	*nfct;
+ 	struct sk_buff		*nfct_reasm;
+ #endif
++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
++	unsigned char			imq_flags;
++	struct nf_queue_entry	*nf_queue_entry;
++#endif
+ #ifdef CONFIG_BRIDGE_NETFILTER
+ 	struct nf_bridge_info	*nf_bridge;
+ #endif
+@@ -1813,6 +1817,10 @@ static inline void __nf_copy(struct sk_b
+ 	dst->nfct_reasm = src->nfct_reasm;
+ 	nf_conntrack_get_reasm(src->nfct_reasm);
+ #endif
++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
++	dst->imq_flags = src->imq_flags;
++	dst->nf_queue_entry = src->nf_queue_entry;
++#endif
+ #ifdef CONFIG_BRIDGE_NETFILTER
+ 	dst->nf_bridge  = src->nf_bridge;
+ 	nf_bridge_get(src->nf_bridge);
+--- a/net/core/dev.c
++++ b/net/core/dev.c
+@@ -96,6 +96,9 @@
+ #include <net/net_namespace.h>
+ #include <net/sock.h>
+ #include <linux/rtnetlink.h>
++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
++#include <linux/imq.h>
++#endif
+ #include <linux/proc_fs.h>
+ #include <linux/seq_file.h>
+ #include <linux/stat.h>
+@@ -1655,7 +1658,11 @@ int dev_hard_start_xmit(struct sk_buff *
+ 			struct netdev_queue *txq)
+ {
+ 	if (likely(!skb->next)) {
+-		if (!list_empty(&ptype_all))
++		if (!list_empty(&ptype_all)
++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
++		    && !(skb->imq_flags & IMQ_F_ENQUEUE)
++#endif
++		    )
+ 			dev_queue_xmit_nit(skb, dev);
+ 
+ 		if (netif_needs_gso(dev, skb)) {
+--- /dev/null
++++ b/net/ipv4/netfilter/ipt_IMQ.c
+@@ -0,0 +1,69 @@
++/*
++ * This target marks packets to be enqueued to an imq device
++ */
++#include <linux/module.h>
++#include <linux/skbuff.h>
++#include <linux/netfilter_ipv4/ip_tables.h>
++#include <linux/netfilter_ipv4/ipt_IMQ.h>
++#include <linux/imq.h>
++
++static unsigned int imq_target(struct sk_buff *pskb,
++			       const struct net_device *in,
++			       const struct net_device *out,
++			       unsigned int hooknum,
++			       const struct xt_target *target,
++			       const void *targinfo)
++{
++	struct ipt_imq_info *mr = (struct ipt_imq_info *)targinfo;
++
++	pskb->imq_flags = mr->todev | IMQ_F_ENQUEUE;
++
++	return XT_CONTINUE;
++}
++
++static bool imq_checkentry(const char *tablename,
++			  const void *e,
++			  const struct xt_target *target,
++			  void *targinfo,
++			  unsigned int hook_mask)
++{
++	struct ipt_imq_info *mr;
++
++	mr = (struct ipt_imq_info *)targinfo;
++
++	if (mr->todev > IMQ_MAX_DEVS) {
++		printk(KERN_WARNING
++		       "IMQ: invalid device specified, highest is %u\n",
++		       IMQ_MAX_DEVS);
++		return 0;
++	}
++
++	return 1;
++}
++
++static struct xt_target ipt_imq_reg = {
++	.name		= "IMQ",
++	.family		= AF_INET,
++	.target		= imq_target,
++	.targetsize	= sizeof(struct ipt_imq_info),
++	.checkentry	= imq_checkentry,
++	.me		= THIS_MODULE,
++	.table		= "mangle"
++};
++
++static int __init init(void)
++{
++	return xt_register_target(&ipt_imq_reg);
++}
++
++static void __exit fini(void)
++{
++	xt_unregister_target(&ipt_imq_reg);
++}
++
++module_init(init);
++module_exit(fini);
++
++MODULE_AUTHOR("http://www.linuximq.net");
++MODULE_DESCRIPTION("Pseudo-driver for the intermediate queue device. See http://www.linuximq.net/ for more information.");
++MODULE_LICENSE("GPL");
+--- a/net/ipv4/netfilter/Kconfig
++++ b/net/ipv4/netfilter/Kconfig
+@@ -134,6 +134,17 @@ config IP_NF_FILTER
+ 
+ 	  To compile it as a module, choose M here.  If unsure, say N.
+ 
++config IP_NF_TARGET_IMQ
++       tristate "IMQ target support"
++       depends on IP_NF_MANGLE && IMQ
++       help
++         This option adds a `IMQ' target which is used to specify if and
++         to which IMQ device packets should get enqueued/dequeued.
++
++	 For more information visit: http://www.linuximq.net/
++
++         To compile it as a module, choose M here.  If unsure, say N.
++
+ config IP_NF_TARGET_REJECT
+ 	tristate "REJECT target support"
+ 	depends on IP_NF_FILTER
+--- a/net/ipv4/netfilter/Makefile
++++ b/net/ipv4/netfilter/Makefile
+@@ -61,6 +61,7 @@ obj-$(CONFIG_IP_NF_MATCH_IPP2P) += ipt_i
+ obj-$(CONFIG_IP_NF_TARGET_CLUSTERIP) += ipt_CLUSTERIP.o
+ obj-$(CONFIG_IP_NF_TARGET_ECN) += ipt_ECN.o
+ obj-$(CONFIG_IP_NF_TARGET_LOG) += ipt_LOG.o
++obj-$(CONFIG_IP_NF_TARGET_IMQ) += ipt_IMQ.o
+ obj-$(CONFIG_IP_NF_TARGET_MASQUERADE) += ipt_MASQUERADE.o
+ obj-$(CONFIG_IP_NF_TARGET_NETMAP) += ipt_NETMAP.o
+ obj-$(CONFIG_IP_NF_TARGET_REDIRECT) += ipt_REDIRECT.o
+--- /dev/null
++++ b/net/ipv6/netfilter/ip6t_IMQ.c
+@@ -0,0 +1,69 @@
++/*
++ * This target marks packets to be enqueued to an imq device
++ */
++#include <linux/module.h>
++#include <linux/skbuff.h>
++#include <linux/netfilter_ipv6/ip6_tables.h>
++#include <linux/netfilter_ipv6/ip6t_IMQ.h>
++#include <linux/imq.h>
++
++static unsigned int imq_target(struct sk_buff *pskb,
++			       const struct net_device *in,
++			       const struct net_device *out,
++			       unsigned int hooknum,
++			       const struct xt_target *target,
++			       const void *targinfo)
++{
++	struct ip6t_imq_info *mr = (struct ip6t_imq_info *)targinfo;
++
++	pskb->imq_flags = mr->todev | IMQ_F_ENQUEUE;
++
++	return XT_CONTINUE;
++}
++
++static bool imq_checkentry(const char *tablename,
++			  const void *entry,
++			  const struct xt_target *target,
++			  void *targinfo,
++			  unsigned int hook_mask)
++{
++	struct ip6t_imq_info *mr;
++
++	mr = (struct ip6t_imq_info *)targinfo;
++
++	if (mr->todev > IMQ_MAX_DEVS) {
++		printk(KERN_WARNING
++		       "IMQ: invalid device specified, highest is %u\n",
++		       IMQ_MAX_DEVS);
++		return 0;
++	}
++
++	return 1;
++}
++
++static struct xt_target ip6t_imq_reg = {
++	.name           = "IMQ",
++	.family		= AF_INET6,
++	.target         = imq_target,
++	.targetsize	= sizeof(struct ip6t_imq_info),
++	.table		= "mangle",
++	.checkentry     = imq_checkentry,
++	.me             = THIS_MODULE
++};
++
++static int __init init(void)
++{
++	return xt_register_target(&ip6t_imq_reg);
++}
++
++static void __exit fini(void)
++{
++	xt_unregister_target(&ip6t_imq_reg);
++}
++
++module_init(init);
++module_exit(fini);
++
++MODULE_AUTHOR("http://www.linuximq.net");
++MODULE_DESCRIPTION("Pseudo-driver for the intermediate queue device. See http://www.linuximq.net/ for more information.");
++MODULE_LICENSE("GPL");
+--- a/net/ipv6/netfilter/Kconfig
++++ b/net/ipv6/netfilter/Kconfig
+@@ -170,6 +170,15 @@ config IP6_NF_MANGLE
+ 
+ 	  To compile it as a module, choose M here.  If unsure, say N.
+ 
++config IP6_NF_TARGET_IMQ
++	tristate "IMQ target support"
++	depends on IP6_NF_MANGLE && IMQ
++	help
++          This option adds a `IMQ' target which is used to specify if and
++          to which imq device packets should get enqueued/dequeued.
++
++          To compile it as a module, choose M here.  If unsure, say N.
++
+ config IP6_NF_TARGET_HL
+ 	tristate  'HL (hoplimit) target support'
+ 	depends on IP6_NF_MANGLE
+--- a/net/ipv6/netfilter/Makefile
++++ b/net/ipv6/netfilter/Makefile
+@@ -6,6 +6,7 @@
+ obj-$(CONFIG_IP6_NF_IPTABLES) += ip6_tables.o
+ obj-$(CONFIG_IP6_NF_FILTER) += ip6table_filter.o
+ obj-$(CONFIG_IP6_NF_MANGLE) += ip6table_mangle.o
++obj-$(CONFIG_IP6_NF_TARGET_IMQ) += ip6t_IMQ.o
+ obj-$(CONFIG_IP6_NF_QUEUE) += ip6_queue.o
+ obj-$(CONFIG_IP6_NF_RAW) += ip6table_raw.o
+ obj-$(CONFIG_IP6_NF_SECURITY) += ip6table_security.o
+--- a/net/sched/sch_generic.c
++++ b/net/sched/sch_generic.c
+@@ -195,6 +195,7 @@ void __qdisc_run(struct Qdisc *q)
+ 
+ 	clear_bit(__QDISC_STATE_RUNNING, &q->state);
+ }
++EXPORT_SYMBOL(__qdisc_run);
+ 
+ static void dev_watchdog(unsigned long arg)
+ {