[PATCH 2.6] netfilter ipt_REJECT: Add RFC1812 ICMP_PKT_FILTERED

From: Harald Welte (laforge@netfilter.org)
Date: Fri Jul 25 2003 - 15:52:33 EST


Hi Dave!

The six patch set of 2.6 merges of recent bugfixes is now complete.

Author: Maciej Soltysiak <solt@dns.toxicfilms.tv>

This patch adds support for the iptables '--reject-with admin-prohib'
option of the REJECT target, making it compliant with RFC 1812.

[... now off my email until arrival at ksummit + OLS]

Please apply,

diff -Nru --exclude .depend --exclude '*.o' --exclude '*.ko' --exclude '*.ver' --exclude '.*.flags' --exclude '*.orig' --exclude '*.rej' --exclude '*.cmd' --exclude '*.mod.c' --exclude '*~' linux-2.6.0-test1-nftest5/include/linux/netfilter_ipv4/ipt_REJECT.h linux-2.6.0-test1-nftest6/include/linux/netfilter_ipv4/ipt_REJECT.h
--- linux-2.6.0-test1-nftest5/include/linux/netfilter_ipv4/ipt_REJECT.h 2003-07-14 05:37:19.000000000 +0200
+++ linux-2.6.0-test1-nftest6/include/linux/netfilter_ipv4/ipt_REJECT.h 2003-07-19 16:40:11.000000000 +0200
@@ -9,7 +9,8 @@
         IPT_ICMP_ECHOREPLY,
         IPT_ICMP_NET_PROHIBITED,
         IPT_ICMP_HOST_PROHIBITED,
- IPT_TCP_RESET
+ IPT_TCP_RESET,
+ IPT_ICMP_ADMIN_PROHIBITED
 };
 
 struct ipt_reject_info {
diff -Nru --exclude .depend --exclude '*.o' --exclude '*.ko' --exclude '*.ver' --exclude '.*.flags' --exclude '*.orig' --exclude '*.rej' --exclude '*.cmd' --exclude '*.mod.c' --exclude '*~' linux-2.6.0-test1-nftest5/net/ipv4/netfilter/ipt_REJECT.c linux-2.6.0-test1-nftest6/net/ipv4/netfilter/ipt_REJECT.c
--- linux-2.6.0-test1-nftest5/net/ipv4/netfilter/ipt_REJECT.c 2003-07-19 16:13:32.000000000 +0200
+++ linux-2.6.0-test1-nftest6/net/ipv4/netfilter/ipt_REJECT.c 2003-07-19 16:40:11.000000000 +0200
@@ -1,6 +1,7 @@
 /*
  * This is a module which is used for rejecting packets.
  * Added support for customized reject packets (Jozsef Kadlecsik).
+ * Added support for ICMP type-3-code-13 (Maciej Soltysiak). [RFC 1812]
  */
 #include <linux/config.h>
 #include <linux/module.h>
@@ -387,6 +388,9 @@
         case IPT_ICMP_HOST_PROHIBITED:
                     send_unreach(*pskb, ICMP_HOST_ANO);
                     break;
+ case IPT_ICMP_ADMIN_PROHIBITED:
+ send_unreach(*pskb, ICMP_PKT_FILTERED);
+ break;
         case IPT_TCP_RESET:
                 send_reset(*pskb, hooknum == NF_IP_LOCAL_IN);
         case IPT_ICMP_ECHOREPLY:

-- 
- Harald Welte <laforge@netfilter.org>             http://www.netfilter.org/
============================================================================
  "Fragmentation is like classful addressing -- an interesting early
   architectural error that shows how much experimentation was going
   on while IP was being designed."                    -- Paul Vixie


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