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openwrt/openwrt/target/linux/generic-2.4/patches/616-netfilter_imq.patch

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diff -aurN linux-2.4.28-orig/Documentation/Configure.help linux-2.4.28/Documentation/Configure.help
--- linux-2.4.28-orig/Documentation/Configure.help 2004-11-17 11:54:20.000000000 +0000
+++ linux-2.4.28/Documentation/Configure.help 2004-12-14 11:43:42.000000000 +0000
@@ -3147,6 +3147,22 @@
If you want to compile it as a module, say M here and read
<file:Documentation/modules.txt>. If unsure, say `N'.
+IMQ target support
+CONFIG_IP_NF_TARGET_IMQ
+ This option adds a `IMQ' target which is used to specify if and
+ to which imq device packets should get enqueued/dequeued.
+
+ If you want to compile it as a module, say M here and read
+ <file:Documentation/modules.txt>. If unsure, say `N'.
+
+IMQ target support
+CONFIG_IP6_NF_TARGET_IMQ
+ This option adds a `IMQ' target which is used to specify if and
+ to which imq device packets should get enqueued/dequeued.
+
+ If you want to compile it as a module, say M here and read
+ <file:Documentation/modules.txt>. If unsure, say `N'.
+
MARK target support
CONFIG_IP_NF_TARGET_MARK
This option adds a `MARK' target, which allows you to create rules
@@ -9799,6 +9815,20 @@
say M here and read <file:Documentation/modules.txt>. The module
will be called bonding.o.
+Intermediate queueing device support
+CONFIG_IMQ
+ 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.
+
+ If you want to compile this as a module ( = code which ca be
+ inserted in and removed from the running kernel whenever you want),
+ say M here and read <file:Documentation/modules.txt>. The module
+ will be called imq.o
+
SLIP (serial line) support
CONFIG_SLIP
Say Y if you intend to use SLIP or CSLIP (compressed SLIP) to
diff -aurN linux-2.4.28-orig/drivers/net/Config.in linux-2.4.28/drivers/net/Config.in
--- linux-2.4.28-orig/drivers/net/Config.in 2004-08-07 23:26:04.000000000 +0000
+++ linux-2.4.28/drivers/net/Config.in 2004-12-14 11:43:42.000000000 +0000
@@ -7,6 +7,11 @@
tristate 'Dummy net driver support' CONFIG_DUMMY
tristate 'Bonding driver support' CONFIG_BONDING
tristate 'EQL (serial line load balancing) support' CONFIG_EQUALIZER
+if [ "$CONFIG_NETFILTER" = "y" ]; then
+ tristate 'IMQ (intermediate queueing device) support' CONFIG_IMQ
+else
+ comment 'IMQ needs CONFIG_NETFILTER enabled'
+fi
tristate 'Universal TUN/TAP device driver support' CONFIG_TUN
if [ "$CONFIG_EXPERIMENTAL" = "y" ]; then
tristate 'Ethertap network tap (OBSOLETE)' CONFIG_ETHERTAP
diff -aurN linux-2.4.28-orig/drivers/net/Makefile linux-2.4.28/drivers/net/Makefile
--- linux-2.4.28-orig/drivers/net/Makefile 2004-08-07 23:26:04.000000000 +0000
+++ linux-2.4.28/drivers/net/Makefile 2004-12-14 11:43:42.000000000 +0000
@@ -170,6 +170,7 @@
obj-$(CONFIG_STRIP) += strip.o
obj-$(CONFIG_DUMMY) += dummy.o
+obj-$(CONFIG_IMQ) += imq.o
obj-$(CONFIG_DE600) += de600.o
obj-$(CONFIG_DE620) += de620.o
obj-$(CONFIG_AT1500) += lance.o
diff -aurN linux-2.4.28-orig/drivers/net/imq.c linux-2.4.28/drivers/net/imq.c
--- linux-2.4.28-orig/drivers/net/imq.c 1970-01-01 00:00:00.000000000 +0000
+++ linux-2.4.28/drivers/net/imq.c 2004-12-14 11:43:42.000000000 +0000
@@ -0,0 +1,321 @@
+/*
+ * 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
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/config.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>
+
+static nf_hookfn imq_nf_hook;
+
+static struct nf_hook_ops imq_ingress_ipv4 = {
+ { NULL, NULL},
+ imq_nf_hook,
+ PF_INET,
+ NF_IP_PRE_ROUTING,
+ NF_IP_PRI_MANGLE + 1
+};
+
+static struct nf_hook_ops imq_egress_ipv4 = {
+ { NULL, NULL},
+ imq_nf_hook,
+ PF_INET,
+ NF_IP_POST_ROUTING,
+ NF_IP_PRI_LAST
+};
+
+#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
+static struct nf_hook_ops imq_ingress_ipv6 = {
+ { NULL, NULL},
+ imq_nf_hook,
+ PF_INET6,
+ NF_IP6_PRE_ROUTING,
+ NF_IP6_PRI_MANGLE + 1
+};
+
+static struct nf_hook_ops imq_egress_ipv6 = {
+ { NULL, NULL},
+ imq_nf_hook,
+ PF_INET6,
+ NF_IP6_POST_ROUTING,
+ NF_IP6_PRI_LAST
+};
+#endif
+
+static unsigned int numdevs = 2;
+
+MODULE_PARM(numdevs, "i");
+MODULE_PARM_DESC(numdevs, "number of imq devices");
+
+static struct net_device *imq_devs;
+
+
+static struct net_device_stats *imq_get_stats(struct net_device *dev)
+{
+ return (struct net_device_stats *)dev->priv;
+}
+
+/* called for packets kfree'd in qdiscs at places other than enqueue */
+static void imq_skb_destructor(struct sk_buff *skb)
+{
+ struct nf_info *info = skb->nf_info;
+
+ if (info) {
+ if (info->indev)
+ dev_put(info->indev);
+ if (info->outdev)
+ dev_put(info->outdev);
+ kfree(info);
+ }
+}
+
+static int imq_dev_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+ struct net_device_stats *stats = (struct net_device_stats*) dev->priv;
+
+ stats->tx_bytes += skb->len;
+ stats->tx_packets++;
+
+ skb->imq_flags = 0;
+ skb->destructor = NULL;
+
+ dev->trans_start = jiffies;
+ nf_reinject(skb, skb->nf_info, NF_ACCEPT);
+ return 0;
+}
+
+static int imq_nf_queue(struct sk_buff *skb, struct nf_info *info,
+ void *data)
+{
+ struct net_device *dev;
+ struct net_device_stats *stats;
+ struct sk_buff *skb2 = NULL;
+ struct Qdisc *q;
+ unsigned int index = skb->imq_flags&IMQ_F_IFMASK;
+ int ret = -1;
+
+ if (index > numdevs)
+ return -1;
+
+ dev = imq_devs + index;
+ if (!(dev->flags & IFF_UP)) {
+ skb->imq_flags = 0;
+ nf_reinject(skb, info, NF_ACCEPT);
+ return 0;
+ }
+ dev->last_rx = jiffies;
+
+ if (skb->destructor) {
+ skb2 = skb;
+ skb = skb_clone(skb, GFP_ATOMIC);
+ if (!skb)
+ return -1;
+ }
+ skb->nf_info = info;
+
+ stats = (struct net_device_stats *)dev->priv;
+ stats->rx_bytes+= skb->len;
+ stats->rx_packets++;
+
+ spin_lock_bh(&dev->queue_lock);
+ q = dev->qdisc;
+ if (q->enqueue) {
+ q->enqueue(skb_get(skb), q);
+ if (skb_shared(skb)) {
+ skb->destructor = imq_skb_destructor;
+ kfree_skb(skb);
+ ret = 0;
+ }
+ }
+ if (spin_is_locked(&dev->xmit_lock))
+ netif_schedule(dev);
+ else
+ qdisc_run(dev);
+ spin_unlock_bh(&dev->queue_lock);
+
+ if (skb2)
+ kfree_skb(ret ? skb : skb2);
+
+ return ret;
+}
+
+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 __init imq_init_hooks(void)
+{
+ int err;
+
+ if ((err = nf_register_queue_handler(PF_INET, imq_nf_queue, NULL)))
+ goto err1;
+ if ((err = nf_register_hook(&imq_ingress_ipv4)))
+ goto err2;
+ if ((err = nf_register_hook(&imq_egress_ipv4)))
+ goto err3;
+#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
+ if ((err = nf_register_queue_handler(PF_INET6, imq_nf_queue, NULL)))
+ goto err4;
+ if ((err = nf_register_hook(&imq_ingress_ipv6)))
+ goto err5;
+ if ((err = nf_register_hook(&imq_egress_ipv6)))
+ 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);
+err4:
+ nf_unregister_hook(&imq_egress_ipv4);
+#endif
+err3:
+ nf_unregister_hook(&imq_ingress_ipv4);
+err2:
+ nf_unregister_queue_handler(PF_INET);
+err1:
+ return err;
+}
+
+static void __exit imq_unhook(void)
+{
+ nf_unregister_hook(&imq_ingress_ipv4);
+ nf_unregister_hook(&imq_egress_ipv4);
+ nf_unregister_queue_handler(PF_INET);
+#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);
+#endif
+}
+
+static int __init imq_dev_init(struct net_device *dev)
+{
+ dev->hard_start_xmit = imq_dev_xmit;
+ dev->type = ARPHRD_VOID;
+ dev->mtu = 1500;
+ dev->tx_queue_len = 30;
+ dev->flags = IFF_NOARP;
+ dev->priv = kmalloc(sizeof(struct net_device_stats), GFP_KERNEL);
+ if (dev->priv == NULL)
+ return -ENOMEM;
+ memset(dev->priv, 0, sizeof(struct net_device_stats));
+ dev->get_stats = imq_get_stats;
+
+ return 0;
+}
+
+static void imq_dev_uninit(struct net_device *dev)
+{
+ kfree(dev->priv);
+}
+
+static int __init imq_init_devs(void)
+{
+ struct net_device *dev;
+ int i;
+
+ if (!numdevs || numdevs > IMQ_MAX_DEVS) {
+ printk(KERN_ERR "numdevs has to be betweed 1 and %u\n",
+ IMQ_MAX_DEVS);
+ return -EINVAL;
+ }
+
+ imq_devs = kmalloc(sizeof(struct net_device) * numdevs, GFP_KERNEL);
+ if (!imq_devs)
+ return -ENOMEM;
+ memset(imq_devs, 0, sizeof(struct net_device) * numdevs);
+
+ /* we start counting at zero */
+ numdevs--;
+
+ for (i = 0, dev = imq_devs; i <= numdevs; i++, dev++) {
+ SET_MODULE_OWNER(dev);
+ strcpy(dev->name, "imq%d");
+ dev->init = imq_dev_init;
+ dev->uninit = imq_dev_uninit;
+
+ if (register_netdev(dev) < 0)
+ goto err_register;
+ }
+ return 0;
+
+err_register:
+ for (; i; i--)
+ unregister_netdev(--dev);
+ kfree(imq_devs);
+ return -EIO;
+}
+
+static void imq_cleanup_devs(void)
+{
+ int i;
+ struct net_device *dev = imq_devs;
+
+ for (i = 0; i <= numdevs; i++)
+ unregister_netdev(dev++);
+
+ kfree(imq_devs);
+}
+
+static int __init imq_init_module(void)
+{
+ int err;
+
+ if ((err = imq_init_devs()))
+ return err;
+ if ((err = imq_init_hooks())) {
+ imq_cleanup_devs();
+ return err;
+ }
+
+ printk(KERN_INFO "imq driver loaded.\n");
+
+ return 0;
+}
+
+static void __exit imq_cleanup_module(void)
+{
+ imq_unhook();
+ imq_cleanup_devs();
+}
+
+module_init(imq_init_module);
+module_exit(imq_cleanup_module);
+MODULE_LICENSE("GPL");
diff -aurN linux-2.4.28-orig/include/linux/imq.h linux-2.4.28/include/linux/imq.h
--- linux-2.4.28-orig/include/linux/imq.h 1970-01-01 00:00:00.000000000 +0000
+++ linux-2.4.28/include/linux/imq.h 2004-12-14 11:43:42.000000000 +0000
@@ -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 */
diff -aurN linux-2.4.28-orig/include/linux/netfilter_ipv4/ipt_IMQ.h linux-2.4.28/include/linux/netfilter_ipv4/ipt_IMQ.h
--- linux-2.4.28-orig/include/linux/netfilter_ipv4/ipt_IMQ.h 1970-01-01 00:00:00.000000000 +0000
+++ linux-2.4.28/include/linux/netfilter_ipv4/ipt_IMQ.h 2004-12-14 11:43:42.000000000 +0000
@@ -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 */
diff -aurN linux-2.4.28-orig/include/linux/netfilter_ipv6/ip6t_IMQ.h linux-2.4.28/include/linux/netfilter_ipv6/ip6t_IMQ.h
--- linux-2.4.28-orig/include/linux/netfilter_ipv6/ip6t_IMQ.h 1970-01-01 00:00:00.000000000 +0000
+++ linux-2.4.28/include/linux/netfilter_ipv6/ip6t_IMQ.h 2004-12-14 11:43:42.000000000 +0000
@@ -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 */
diff -aurN linux-2.4.28-orig/include/linux/skbuff.h linux-2.4.28/include/linux/skbuff.h
--- linux-2.4.28-orig/include/linux/skbuff.h 2004-08-07 23:26:06.000000000 +0000
+++ linux-2.4.28/include/linux/skbuff.h 2004-12-14 11:43:42.000000000 +0000
@@ -93,6 +93,9 @@
struct nf_conntrack *master;
};
#endif
+#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
+struct nf_info;
+#endif
struct sk_buff_head {
/* These two members must be first. */
@@ -182,7 +185,7 @@
unsigned int len; /* Length of actual data */
unsigned int data_len;
unsigned int csum; /* Checksum */
- unsigned char __unused, /* Dead field, may be reused */
+ unsigned char imq_flags, /* intermediate queueing device */
cloned, /* head may be cloned (check refcnt to be sure). */
pkt_type, /* Packet class */
ip_summed; /* Driver fed us an IP checksum */
@@ -219,6 +222,9 @@
#ifdef CONFIG_NET_SCHED
__u32 tc_index; /* traffic control index */
#endif
+#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
+ struct nf_info *nf_info;
+#endif
};
#ifdef __KERNEL__
diff -aurN linux-2.4.28-orig/net/core/skbuff.c linux-2.4.28/net/core/skbuff.c
--- linux-2.4.28-orig/net/core/skbuff.c 2003-08-25 11:44:44.000000000 +0000
+++ linux-2.4.28/net/core/skbuff.c 2004-12-14 11:43:42.000000000 +0000
@@ -202,6 +202,10 @@
/* Set up other state */
skb->len = 0;
skb->cloned = 0;
+#if defined(CONFIG_IMQ) || defined (CONFIG_IMQ_MODULE)
+ skb->imq_flags = 0;
+ skb->nf_info = NULL;
+#endif
skb->data_len = 0;
atomic_set(&skb->users, 1);
@@ -250,6 +254,10 @@
#ifdef CONFIG_NET_SCHED
skb->tc_index = 0;
#endif
+#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
+ skb->imq_flags = 0;
+ skb->nf_info = NULL;
+#endif
}
static void skb_drop_fraglist(struct sk_buff *skb)
@@ -400,6 +408,10 @@
#ifdef CONFIG_NET_SCHED
C(tc_index);
#endif
+#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
+ C(imq_flags);
+ C(nf_info);
+#endif
atomic_inc(&(skb_shinfo(skb)->dataref));
skb->cloned = 1;
@@ -444,6 +456,10 @@
#ifdef CONFIG_NET_SCHED
new->tc_index = old->tc_index;
#endif
+#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
+ new->imq_flags=old->imq_flags;
+ new->nf_info=old->nf_info;
+#endif
}
/**
diff -aurN linux-2.4.28-orig/net/ipv4/netfilter/Config.in linux-2.4.28/net/ipv4/netfilter/Config.in
--- linux-2.4.28-orig/net/ipv4/netfilter/Config.in 2003-08-25 11:44:44.000000000 +0000
+++ linux-2.4.28/net/ipv4/netfilter/Config.in 2004-12-14 11:43:43.000000000 +0000
@@ -104,6 +104,7 @@
dep_tristate ' DSCP target support' CONFIG_IP_NF_TARGET_DSCP $CONFIG_IP_NF_MANGLE
dep_tristate ' MARK target support' CONFIG_IP_NF_TARGET_MARK $CONFIG_IP_NF_MANGLE
+ dep_tristate ' IMQ target support' CONFIG_IP_NF_TARGET_IMQ $CONFIG_IP_NF_MANGLE
fi
dep_tristate ' LOG target support' CONFIG_IP_NF_TARGET_LOG $CONFIG_IP_NF_IPTABLES
dep_tristate ' ULOG target support' CONFIG_IP_NF_TARGET_ULOG $CONFIG_IP_NF_IPTABLES
diff -aurN linux-2.4.28-orig/net/ipv4/netfilter/Makefile linux-2.4.28/net/ipv4/netfilter/Makefile
--- linux-2.4.28-orig/net/ipv4/netfilter/Makefile 2003-08-25 11:44:44.000000000 +0000
+++ linux-2.4.28/net/ipv4/netfilter/Makefile 2004-12-14 11:43:43.000000000 +0000
@@ -94,6 +94,7 @@
obj-$(CONFIG_IP_NF_TARGET_ECN) += ipt_ECN.o
obj-$(CONFIG_IP_NF_TARGET_DSCP) += ipt_DSCP.o
obj-$(CONFIG_IP_NF_TARGET_MARK) += ipt_MARK.o
+obj-$(CONFIG_IP_NF_TARGET_IMQ) += ipt_IMQ.o
obj-$(CONFIG_IP_NF_TARGET_MASQUERADE) += ipt_MASQUERADE.o
obj-$(CONFIG_IP_NF_TARGET_REDIRECT) += ipt_REDIRECT.o
obj-$(CONFIG_IP_NF_NAT_SNMP_BASIC) += ip_nat_snmp_basic.o
diff -aurN linux-2.4.28-orig/net/ipv4/netfilter/ipt_IMQ.c linux-2.4.28/net/ipv4/netfilter/ipt_IMQ.c
--- linux-2.4.28-orig/net/ipv4/netfilter/ipt_IMQ.c 1970-01-01 00:00:00.000000000 +0000
+++ linux-2.4.28/net/ipv4/netfilter/ipt_IMQ.c 2004-12-14 11:43:43.000000000 +0000
@@ -0,0 +1,78 @@
+/* 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,
+ unsigned int hooknum,
+ const struct net_device *in,
+ const struct net_device *out,
+ const void *targinfo,
+ void *userinfo)
+{
+ struct ipt_imq_info *mr = (struct ipt_imq_info*)targinfo;
+
+ (*pskb)->imq_flags = mr->todev | IMQ_F_ENQUEUE;
+ (*pskb)->nfcache |= NFC_ALTERED;
+
+ return IPT_CONTINUE;
+}
+
+static int imq_checkentry(const char *tablename,
+ const struct ipt_entry *e,
+ void *targinfo,
+ unsigned int targinfosize,
+ unsigned int hook_mask)
+{
+ struct ipt_imq_info *mr;
+
+ if (targinfosize != IPT_ALIGN(sizeof(struct ipt_imq_info))) {
+ printk(KERN_WARNING "IMQ: invalid targinfosize\n");
+ return 0;
+ }
+ mr = (struct ipt_imq_info*)targinfo;
+
+ if (strcmp(tablename, "mangle") != 0) {
+ printk(KERN_WARNING
+ "IMQ: IMQ can only be called from \"mangle\" table, not \"%s\"\n",
+ tablename);
+ return 0;
+ }
+
+ 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 ipt_target ipt_imq_reg = {
+ { NULL, NULL},
+ "IMQ",
+ imq_target,
+ imq_checkentry,
+ NULL,
+ THIS_MODULE
+};
+
+static int __init init(void)
+{
+ if (ipt_register_target(&ipt_imq_reg))
+ return -EINVAL;
+
+ return 0;
+}
+
+static void __exit fini(void)
+{
+ ipt_unregister_target(&ipt_imq_reg);
+}
+
+module_init(init);
+module_exit(fini);
+MODULE_LICENSE("GPL");
diff -aurN linux-2.4.28-orig/net/ipv6/netfilter/Config.in linux-2.4.28/net/ipv6/netfilter/Config.in
--- linux-2.4.28-orig/net/ipv6/netfilter/Config.in 2003-06-13 14:51:39.000000000 +0000
+++ linux-2.4.28/net/ipv6/netfilter/Config.in 2004-12-14 11:43:43.000000000 +0000
@@ -71,6 +71,7 @@
if [ "$CONFIG_IP6_NF_MANGLE" != "n" ]; then
# dep_tristate ' TOS target support' CONFIG_IP6_NF_TARGET_TOS $CONFIG_IP_NF_MANGLE
dep_tristate ' MARK target support' CONFIG_IP6_NF_TARGET_MARK $CONFIG_IP6_NF_MANGLE
+ dep_tristate ' IMQ target support' CONFIG_IP6_NF_TARGET_IMQ $CONFIG_IP6_NF_MANGLE
fi
#dep_tristate ' LOG target support' CONFIG_IP6_NF_TARGET_LOG $CONFIG_IP6_NF_IPTABLES
fi
diff -aurN linux-2.4.28-orig/net/ipv6/netfilter/Makefile linux-2.4.28/net/ipv6/netfilter/Makefile
--- linux-2.4.28-orig/net/ipv6/netfilter/Makefile 2003-06-13 14:51:39.000000000 +0000
+++ linux-2.4.28/net/ipv6/netfilter/Makefile 2004-12-14 11:43:43.000000000 +0000
@@ -28,6 +28,7 @@
obj-$(CONFIG_IP6_NF_FILTER) += ip6table_filter.o
obj-$(CONFIG_IP6_NF_MANGLE) += ip6table_mangle.o
obj-$(CONFIG_IP6_NF_TARGET_MARK) += ip6t_MARK.o
+obj-$(CONFIG_IP6_NF_TARGET_IMQ) += ip6t_IMQ.o
obj-$(CONFIG_IP6_NF_QUEUE) += ip6_queue.o
obj-$(CONFIG_IP6_NF_TARGET_LOG) += ip6t_LOG.o
obj-$(CONFIG_IP6_NF_MATCH_HL) += ip6t_hl.o
diff -aurN linux-2.4.28-orig/net/ipv6/netfilter/ip6t_IMQ.c linux-2.4.28/net/ipv6/netfilter/ip6t_IMQ.c
--- linux-2.4.28-orig/net/ipv6/netfilter/ip6t_IMQ.c 1970-01-01 00:00:00.000000000 +0000
+++ linux-2.4.28/net/ipv6/netfilter/ip6t_IMQ.c 2004-12-14 11:43:43.000000000 +0000
@@ -0,0 +1,78 @@
+/* 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,
+ unsigned int hooknum,
+ const struct net_device *in,
+ const struct net_device *out,
+ const void *targinfo,
+ void *userinfo)
+{
+ struct ip6t_imq_info *mr = (struct ip6t_imq_info*)targinfo;
+
+ (*pskb)->imq_flags = mr->todev | IMQ_F_ENQUEUE;
+ (*pskb)->nfcache |= NFC_ALTERED;
+
+ return IP6T_CONTINUE;
+}
+
+static int imq_checkentry(const char *tablename,
+ const struct ip6t_entry *e,
+ void *targinfo,
+ unsigned int targinfosize,
+ unsigned int hook_mask)
+{
+ struct ip6t_imq_info *mr;
+
+ if (targinfosize != IP6T_ALIGN(sizeof(struct ip6t_imq_info))) {
+ printk(KERN_WARNING "IMQ: invalid targinfosize\n");
+ return 0;
+ }
+ mr = (struct ip6t_imq_info*)targinfo;
+
+ if (strcmp(tablename, "mangle") != 0) {
+ printk(KERN_WARNING
+ "IMQ: IMQ can only be called from \"mangle\" table, not \"%s\"\n",
+ tablename);
+ return 0;
+ }
+
+ 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 ip6t_target ip6t_imq_reg = {
+ { NULL, NULL},
+ "IMQ",
+ imq_target,
+ imq_checkentry,
+ NULL,
+ THIS_MODULE
+};
+
+static int __init init(void)
+{
+ if (ip6t_register_target(&ip6t_imq_reg))
+ return -EINVAL;
+
+ return 0;
+}
+
+static void __exit fini(void)
+{
+ ip6t_unregister_target(&ip6t_imq_reg);
+}
+
+module_init(init);
+module_exit(fini);
+MODULE_LICENSE("GPL");
diff -aurN linux-2.4.28-orig/net/sched/sch_generic.c linux-2.4.28/net/sched/sch_generic.c
--- linux-2.4.28-orig/net/sched/sch_generic.c 2004-11-17 11:54:22.000000000 +0000
+++ linux-2.4.28/net/sched/sch_generic.c 2004-12-14 11:44:27.000000000 +0000
@@ -29,6 +29,9 @@
#include <linux/skbuff.h>
#include <linux/rtnetlink.h>
#include <linux/init.h>
+#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
+#include <linux/imq.h>
+#endif
#include <linux/list.h>
#include <net/sock.h>
#include <net/pkt_sched.h>
@@ -90,7 +93,11 @@
spin_unlock(&dev->queue_lock);
if (!netif_queue_stopped(dev)) {
- if (netdev_nit)
+ if (netdev_nit
+#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
+ && !(skb->imq_flags & IMQ_F_ENQUEUE)
+#endif
+ )
dev_queue_xmit_nit(skb, dev);
if (dev->hard_start_xmit(skb, dev) == 0) {
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