--- /dev/null
+diff -ruaN linux-2.4.34.orig/Documentation/Configure.help linux-2.4.34/Documentation/Configure.help
+--- linux-2.4.34.orig/Documentation/Configure.help 2007-06-01 12:17:16.000000000 +0100
++++ linux-2.4.34/Documentation/Configure.help 2007-06-01 12:20:20.000000000 +0100
+@@ -2986,6 +2986,14 @@
+ If you want to compile it as a module, say M here and read
+ <file:Documentation/modules.txt>. If unsure, say `N'.
+
++iprange match support
++CONFIG_IP_NF_MATCH_IPRANGE
++ This option makes possible to match IP addresses against
++ IP address ranges.
++
++ If you want to compile it as a module, say M here and read
++ <file:Documentation/modules.txt>. If unsure, say `N'.
++
+ Condition variable match support
+ CONFIG_IP_NF_MATCH_CONDITION
+ This option allows you to match firewall rules against condition
+diff -ruaN linux-2.4.34.orig/include/linux/netfilter_ipv4/ipt_iprange.h linux-2.4.34/include/linux/netfilter_ipv4/ipt_iprange.h
+--- linux-2.4.34.orig/include/linux/netfilter_ipv4/ipt_iprange.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.4.34/include/linux/netfilter_ipv4/ipt_iprange.h 2007-06-01 12:20:20.000000000 +0100
+@@ -0,0 +1,23 @@
++#ifndef _IPT_IPRANGE_H
++#define _IPT_IPRANGE_H
++
++#define IPRANGE_SRC 0x01 /* Match source IP address */
++#define IPRANGE_DST 0x02 /* Match destination IP address */
++#define IPRANGE_SRC_INV 0x10 /* Negate the condition */
++#define IPRANGE_DST_INV 0x20 /* Negate the condition */
++
++struct ipt_iprange {
++ /* Inclusive: network order. */
++ u_int32_t min_ip, max_ip;
++};
++
++struct ipt_iprange_info
++{
++ struct ipt_iprange src;
++ struct ipt_iprange dst;
++
++ /* Flags from above */
++ u_int8_t flags;
++};
++
++#endif /* _IPT_IPRANGE_H */
+diff -ruaN linux-2.4.34.orig/net/ipv4/netfilter/Config.in linux-2.4.34/net/ipv4/netfilter/Config.in
+--- linux-2.4.34.orig/net/ipv4/netfilter/Config.in 2007-06-01 12:17:17.000000000 +0100
++++ linux-2.4.34/net/ipv4/netfilter/Config.in 2007-06-01 12:20:20.000000000 +0100
+@@ -27,6 +27,7 @@
+ if [ "$CONFIG_IP_NF_IPTABLES" != "n" ]; then
+ # The simple matches.
+ dep_tristate ' limit match support' CONFIG_IP_NF_MATCH_LIMIT $CONFIG_IP_NF_IPTABLES
++ dep_tristate ' IP range match support' CONFIG_IP_NF_MATCH_IPRANGE $CONFIG_IP_NF_IPTABLES
+ dep_tristate ' quota match support' CONFIG_IP_NF_MATCH_QUOTA $CONFIG_IP_NF_IPTABLES
+
+ dep_tristate ' IP set support' CONFIG_IP_NF_SET $CONFIG_IP_NF_IPTABLES
+diff -ruaN linux-2.4.34.orig/net/ipv4/netfilter/ipt_iprange.c linux-2.4.34/net/ipv4/netfilter/ipt_iprange.c
+--- linux-2.4.34.orig/net/ipv4/netfilter/ipt_iprange.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.4.34/net/ipv4/netfilter/ipt_iprange.c 2007-06-01 12:20:20.000000000 +0100
+@@ -0,0 +1,101 @@
++/*
++ * iptables module to match IP address ranges
++ * (c) 2003 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
++ *
++ * Released under the terms of GNU GPLv2.
++ *
++ */
++#include <linux/module.h>
++#include <linux/skbuff.h>
++#include <linux/ip.h>
++#include <linux/netfilter_ipv4/ip_tables.h>
++#include <linux/netfilter_ipv4/ipt_iprange.h>
++
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
++MODULE_DESCRIPTION("iptables arbitrary IP range match module");
++
++#if 0
++#define DEBUGP printk
++#else
++#define DEBUGP(format, args...)
++#endif
++
++static int
++match(const struct sk_buff *skb,
++ const struct net_device *in,
++ const struct net_device *out,
++ const void *matchinfo,
++ int offset,
++ const void *hdr,
++ u_int16_t datalen,
++ int *hotdrop)
++{
++ const struct ipt_iprange_info *info = matchinfo;
++ const struct iphdr *iph = skb->nh.iph;
++
++
++ if (info->flags & IPRANGE_SRC) {
++ if (((ntohl(iph->saddr) < ntohl(info->src.min_ip))
++ || (ntohl(iph->saddr) > ntohl(info->src.max_ip)))
++ ^ !!(info->flags & IPRANGE_SRC_INV)) {
++ DEBUGP("src IP %u.%u.%u.%u NOT in range %s"
++ "%u.%u.%u.%u-%u.%u.%u.%u\n",
++ NIPQUAD(iph->saddr),
++ info->flags & IPRANGE_SRC_INV ? "(INV) " : "",
++ NIPQUAD(info->src.min_ip),
++ NIPQUAD(info->src.max_ip));
++ return 0;
++ }
++ }
++ if (info->flags & IPRANGE_DST) {
++ if (((ntohl(iph->daddr) < ntohl(info->dst.min_ip))
++ || (ntohl(iph->daddr) > ntohl(info->dst.max_ip)))
++ ^ !!(info->flags & IPRANGE_DST_INV)) {
++ DEBUGP("dst IP %u.%u.%u.%u NOT in range %s"
++ "%u.%u.%u.%u-%u.%u.%u.%u\n",
++ NIPQUAD(iph->daddr),
++ info->flags & IPRANGE_DST_INV ? "(INV) " : "",
++ NIPQUAD(info->dst.min_ip),
++ NIPQUAD(info->dst.max_ip));
++ return 0;
++ }
++ }
++ return 1;
++}
++
++static int check(const char *tablename,
++ const struct ipt_ip *ip,
++ void *matchinfo,
++ unsigned int matchsize,
++ unsigned int hook_mask)
++{
++ /* verify size */
++ if (matchsize != IPT_ALIGN(sizeof(struct ipt_iprange_info)))
++ return 0;
++
++ return 1;
++}
++
++static struct ipt_match iprange_match =
++{
++ .list = { NULL, NULL },
++ .name = "iprange",
++ .match = &match,
++ .checkentry = &check,
++ .destroy = NULL,
++ .me = THIS_MODULE
++};
++
++static int __init init(void)
++{
++ return ipt_register_match(&iprange_match);
++}
++
++static void __exit fini(void)
++{
++ ipt_unregister_match(&iprange_match);
++}
++
++module_init(init);
++module_exit(fini);
+diff -ruaN linux-2.4.34.orig/net/ipv4/netfilter/Makefile linux-2.4.34/net/ipv4/netfilter/Makefile
+--- linux-2.4.34.orig/net/ipv4/netfilter/Makefile 2007-06-01 12:17:17.000000000 +0100
++++ linux-2.4.34/net/ipv4/netfilter/Makefile 2007-06-01 12:20:20.000000000 +0100
+@@ -90,6 +90,7 @@
+ # matches
+ obj-$(CONFIG_IP_NF_MATCH_HELPER) += ipt_helper.o
+ obj-$(CONFIG_IP_NF_MATCH_LIMIT) += ipt_limit.o
++obj-$(CONFIG_IP_NF_MATCH_IPRANGE) += ipt_iprange.o
+ obj-$(CONFIG_IP_NF_MATCH_QUOTA) += ipt_quota.o
+ obj-$(CONFIG_IP_NF_MATCH_MARK) += ipt_mark.o
+ obj-$(CONFIG_IP_NF_MATCH_SET) += ipt_set.o
projects / openwrt.git / commitdiff