diff options
Diffstat (limited to 'openwrt/target/linux/linux-2.4/patches')
| -rw-r--r-- | openwrt/target/linux/linux-2.4/patches/generic/616-netfilter_imq.patch | 748 |
1 files changed, 748 insertions, 0 deletions
diff --git a/openwrt/target/linux/linux-2.4/patches/generic/616-netfilter_imq.patch b/openwrt/target/linux/linux-2.4/patches/generic/616-netfilter_imq.patch new file mode 100644 index 000000000..e2e45af88 --- /dev/null +++ b/openwrt/target/linux/linux-2.4/patches/generic/616-netfilter_imq.patch @@ -0,0 +1,748 @@ +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) { |