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120 lines
4.2 KiB
120 lines
4.2 KiB
diff -uprN linux-2.4.32.reference/include/linux/netfilter_ipv4/ipt_CLASSIFY.h linux-2.4.32/include/linux/netfilter_ipv4/ipt_CLASSIFY.h
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--- linux-2.4.32.reference/include/linux/netfilter_ipv4/ipt_CLASSIFY.h 1970-01-01 01:00:00.000000000 +0100
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+++ linux-2.4.32/include/linux/netfilter_ipv4/ipt_CLASSIFY.h 2006-08-17 12:33:08.000000000 +0200
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@@ -0,0 +1,8 @@
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+#ifndef _IPT_CLASSIFY_H
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+#define _IPT_CLASSIFY_H
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+
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+struct ipt_classify_target_info {
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+ u_int32_t priority;
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+};
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+
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+#endif /*_IPT_CLASSIFY_H */
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diff -uprN linux-2.4.32.reference/net/ipv4/netfilter/Config.in linux-2.4.32/net/ipv4/netfilter/Config.in
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--- linux-2.4.32.reference/net/ipv4/netfilter/Config.in 2006-08-17 12:28:16.000000000 +0200
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+++ linux-2.4.32/net/ipv4/netfilter/Config.in 2006-08-17 12:33:08.000000000 +0200
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@@ -172,6 +172,7 @@ if [ "$CONFIG_IP_NF_IPTABLES" != "n" ];
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dep_tristate ' DSCP target support' CONFIG_IP_NF_TARGET_DSCP $CONFIG_IP_NF_MANGLE
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dep_tristate ' MARK target support' CONFIG_IP_NF_TARGET_MARK $CONFIG_IP_NF_MANGLE
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+ dep_tristate ' CLASSIFY target support (EXPERIMENTAL)' CONFIG_IP_NF_TARGET_CLASSIFY $CONFIG_IP_NF_MANGLE
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dep_tristate ' IMQ target support' CONFIG_IP_NF_TARGET_IMQ $CONFIG_IP_NF_MANGLE
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fi
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if [ "$CONFIG_IP_NF_CONNTRACK_MARK" != "n" ]; then
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diff -uprN linux-2.4.32.reference/net/ipv4/netfilter/ipt_CLASSIFY.c linux-2.4.32/net/ipv4/netfilter/ipt_CLASSIFY.c
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--- linux-2.4.32.reference/net/ipv4/netfilter/ipt_CLASSIFY.c 1970-01-01 01:00:00.000000000 +0100
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+++ linux-2.4.32/net/ipv4/netfilter/ipt_CLASSIFY.c 2006-08-17 12:33:08.000000000 +0200
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@@ -0,0 +1,82 @@
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+/*
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+ * This is a module which is used for setting the skb->priority field
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+ * of an skb for qdisc classification.
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+ */
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+
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+#include <linux/module.h>
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+#include <linux/skbuff.h>
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+#include <linux/ip.h>
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+#include <net/checksum.h>
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+
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+#include <linux/netfilter_ipv4/ip_tables.h>
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+#include <linux/netfilter_ipv4/ipt_CLASSIFY.h>
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+
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+MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
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+MODULE_LICENSE("GPL");
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+MODULE_DESCRIPTION("iptables qdisc classification target module");
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+
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+static unsigned int
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+target(struct sk_buff **pskb,
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+ unsigned int hooknum,
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+ const struct net_device *in,
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+ const struct net_device *out,
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+ const void *targinfo,
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+ void *userinfo)
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+{
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+ const struct ipt_classify_target_info *clinfo = targinfo;
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+
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+ if((*pskb)->priority != clinfo->priority) {
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+ (*pskb)->priority = clinfo->priority;
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+ (*pskb)->nfcache |= NFC_ALTERED;
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+ }
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+
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+ return IPT_CONTINUE;
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+}
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+
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+static int
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+checkentry(const char *tablename,
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+ const struct ipt_entry *e,
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+ void *targinfo,
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+ unsigned int targinfosize,
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+ unsigned int hook_mask)
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+{
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+ if (targinfosize != IPT_ALIGN(sizeof(struct ipt_classify_target_info))){
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+ printk(KERN_ERR "CLASSIFY: invalid size (%u != %u).\n",
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+ targinfosize,
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+ IPT_ALIGN(sizeof(struct ipt_classify_target_info)));
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+ return 0;
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+ }
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+
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+ if (hook_mask & ~(1 << NF_IP_POST_ROUTING)) {
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+ printk(KERN_ERR "CLASSIFY: only valid in POST_ROUTING.\n");
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+ return 0;
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+ }
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+
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+ if (strcmp(tablename, "mangle") != 0) {
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+ printk(KERN_WARNING "CLASSIFY: can only be called from "
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+ "\"mangle\" table, not \"%s\".\n",
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+ tablename);
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+ return 0;
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+ }
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+
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+ return 1;
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+}
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+
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+static struct ipt_target ipt_classify_reg
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+= { { NULL, NULL }, "CLASSIFY", target, checkentry, NULL, THIS_MODULE };
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+
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+static int __init init(void)
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+{
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+ if (ipt_register_target(&ipt_classify_reg))
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+ return -EINVAL;
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+
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+ return 0;
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+}
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+
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+static void __exit fini(void)
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+{
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+ ipt_unregister_target(&ipt_classify_reg);
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+}
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+
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+module_init(init);
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+module_exit(fini);
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diff -uprN linux-2.4.32.reference/net/ipv4/netfilter/Makefile linux-2.4.32/net/ipv4/netfilter/Makefile
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--- linux-2.4.32.reference/net/ipv4/netfilter/Makefile 2006-08-17 12:28:16.000000000 +0200
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+++ linux-2.4.32/net/ipv4/netfilter/Makefile 2006-08-17 12:33:08.000000000 +0200
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@@ -134,6 +134,7 @@ obj-$(CONFIG_IP_NF_MATCH_LAYER7) += ipt_
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# targets
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obj-$(CONFIG_IP_NF_TARGET_REJECT) += ipt_REJECT.o
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+obj-$(CONFIG_IP_NF_TARGET_CLASSIFY) += ipt_CLASSIFY.o
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obj-$(CONFIG_IP_NF_TARGET_MIRROR) += ipt_MIRROR.o
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obj-$(CONFIG_IP_NF_TARGET_TOS) += ipt_TOS.o
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obj-$(CONFIG_IP_NF_TARGET_ECN) += ipt_ECN.o
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