Date: Wed, 13 Jun 2007 12:43:21 +0200 (CEST) From: Janos Mohacsi <mohacsi@niif.hu> To: FreeBSD-gnats-submit@FreeBSD.org Cc: freebsd-security@FreeBSD.org Subject: bin/113650: pf does not use IPv6 interface addresses at startups Message-ID: <200706131043.l5DAhLOV024723@scone.ki.iif.hu> Resent-Message-ID: <200706131050.l5DAo2Ve062092@freefall.freebsd.org>
next in thread | raw e-mail | index | archive | help
>Number: 113650 >Category: bin >Synopsis: pf does not use IPv6 interface addresses at startups >Confidential: no >Severity: serious >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Wed Jun 13 10:50:01 GMT 2007 >Closed-Date: >Last-Modified: >Originator: Janos Mohacsi >Release: FreeBSD 6.2-STABLE i386 >Organization: NIIF/HUNGARNET >Environment: System: FreeBSD scone.ki.iif.hu 6.2-STABLE FreeBSD 6.2-STABLE #23: Wed May 9 18:23:24 CEST 2007 root@scone.ki.iif.hu:/usr/obj/usr/src/sys/SCONE i386 >Description: The pf firewall does not use the IPv6 addresses at startups. If you start using pf firewall with IPv6 enabled the IPv6 addressess are not used: e.g. in case of pf rule: pass out quick proto tcp from $ext_if to any keep state the real rule will be: pass out quick inet proto tcp from "IPv4_ADDRESS_OF_EXTERNAL_INTERFACE" to any keep state the IPv6 address of the external did not take into consideration since IPv6 address not configured yet. >How-To-Repeat: Try using interface names with ipv6 enabled in pf firewall. >Fix: 1. Start network_ipv6 before pf in /etc/rc.d. mohacsi@mignon2> diff -ruN pf.orig pf --- pf.orig Wed Jun 13 12:43:30 2007 +++ pf Wed Jun 13 12:43:53 2007 @@ -4,7 +4,7 @@ # # PROVIDE: pf -# REQUIRE: root FILESYSTEMS netif pflog pfsync +# REQUIRE: root FILESYSTEMS netif pflog pfsync network_ipv6 # BEFORE: routing # KEYWORD: nojail 2. However to protect services during boot I recommend adding pfboot in /etc/rc.d. See /etc/rc.d/pfboot reference at NetBSD http://cvsweb.netbsd.org/bsdweb.cgi/src/etc/rc.d/pf_boot and /etc/pf.boot.conf also at NetBSD http://cvsweb.netbsd.org/bsdweb.cgi/src/usr.sbin/pf/etc/defaults/pf.boot.conf?rev=1.2&content-type=text/x-cvsweb-markup >Release-Note: >Audit-Trail: >Unformatted:
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200706131043.l5DAhLOV024723>