parent
1435d167ff
commit
908b616d8e
@ -0,0 +1,172 @@ |
||||
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
|
Loading…
Reference in new issue