From nobody@FreeBSD.org Wed Dec 15 01:37:51 2010 Return-Path: Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id B9565106566B for ; Wed, 15 Dec 2010 01:37:51 +0000 (UTC) (envelope-from nobody@FreeBSD.org) Received: from red.freebsd.org (unknown [IPv6:2001:4f8:fff6::22]) by mx1.freebsd.org (Postfix) with ESMTP id A7FA98FC16 for ; Wed, 15 Dec 2010 01:37:51 +0000 (UTC) Received: from red.freebsd.org (localhost [127.0.0.1]) by red.freebsd.org (8.14.4/8.14.4) with ESMTP id oBF1bpax024330 for ; Wed, 15 Dec 2010 01:37:51 GMT (envelope-from nobody@red.freebsd.org) Received: (from nobody@localhost) by red.freebsd.org (8.14.4/8.14.4/Submit) id oBF1bpjh024329; Wed, 15 Dec 2010 01:37:51 GMT (envelope-from nobody) Message-Id: <201012150137.oBF1bpjh024329@red.freebsd.org> Date: Wed, 15 Dec 2010 01:37:51 GMT From: Renato Tambellini To: freebsd-gnats-submit@FreeBSD.org Subject: IPFIREWALL does not allow specify rules with ICMP codes X-Send-Pr-Version: www-3.1 X-GNATS-Notify: >Number: 153161 >Category: kern >Synopsis: IPFIREWALL does not allow specify rules with ICMP codes >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-ipfw >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Wed Dec 15 01:40:10 UTC 2010 >Closed-Date: >Last-Modified: Wed Dec 15 05:47:40 UTC 2010 >Originator: Renato Tambellini >Release: 8.1-STABLE >Organization: Private >Environment: FreeBSD devilbox.homeunix.net 8.1-STABLE FreeBSD 8.1-STABLE #0: Sun Nov 21 16:38:20 BRST 2010 root@devilbox.homeunix.net:/usr/obj/usr/src/sys/DEVILBOX amd64 >Description: The IPFIREWALL does not support specify rules with ICMP codes. Example: I try to create a rule to accept packets like this captured in debug mode: Dec 14 23:08:44 devilbox kernel: ipfw: 400 Accept ICMP:3.4 192.168.1.5 192.168.1.11 in via wlan1 Error when trying to create rule: # ipfw 500 add allow icmp from 192.168.1.5 to me icmptypes 3.4 ipfw: invalid ICMP type Exit 65 RFC792: ICMP type 3 (destination unreachable) ICMP type 3, code 4 (fragmentation needed and DF set) * This problem also occur in all ICMP types and codes. >How-To-Repeat: ipfw 500 add allow icmp from 192.168.1.5 to me icmptypes 3.4 >Fix: Create methods that make possible IPFIREWALL and ipfw interface accept specify ICMP codes. >Release-Note: >Audit-Trail: State-Changed-From-To: open->closed State-Changed-By: ae State-Changed-When: Wed Dec 15 05:04:39 UTC 2010 State-Changed-Why: Expected behaviour. A numeric list of icmptypes should be separated by commas. See ipfw(8) manual page. http://www.freebsd.org/cgi/query-pr.cgi?pr=153161 State-Changed-From-To: closed->open State-Changed-By: ae State-Changed-When: Wed Dec 15 05:44:49 UTC 2010 State-Changed-Why: Reopen PR and assign over to maintainer. ipfw currently does not support icmp codes. Responsible-Changed-From-To: freebsd-bugs->freebsd-ipfw Responsible-Changed-By: ae Responsible-Changed-When: Wed Dec 15 05:44:49 UTC 2010 Responsible-Changed-Why: Reopen PR and assign over to maintainer. ipfw currently does not support icmp codes. http://www.freebsd.org/cgi/query-pr.cgi?pr=153161 >Unformatted: