From d7cbed85b672de777da9856109a32df83340225d Mon Sep 17 00:00:00 2001 From: henning Date: Sat, 19 Apr 2014 16:07:09 +0000 Subject: [PATCH] use "!received-on any" to absolutely ensure that we're not forwarding carp, rpc or nfs traffic in the initial ruleset active during network startup for a short time (or a much longer time if /etc/pf.conf is screwed up). ok phessler --- etc/rc | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/etc/rc b/etc/rc index eb7d7c74c16..599e99d13af 100644 --- a/etc/rc +++ b/etc/rc @@ -1,4 +1,4 @@ -# $OpenBSD: rc,v 1.423 2014/03/15 22:13:36 sthen Exp $ +# $OpenBSD: rc,v 1.424 2014/04/19 16:07:09 henning Exp $ # System startup script run by init on autoboot # or after single-user. @@ -336,13 +336,14 @@ if [ X"${pf}" != X"NO" ]; then RULES="$RULES\npass out inet6 proto udp from any port dhcpv6-client to any port dhcpv6-server" RULES="$RULES\npass in inet6 proto udp from any port dhcpv6-server to any port dhcpv6-client" fi - RULES="$RULES\npass proto carp keep state (no-sync)" + RULES="$RULES\npass in proto carp keep state (no-sync)" + RULES="$RULES\npass out proto carp !received-on any keep state (no-sync)" case `sysctl vfs.mounts.nfs 2>/dev/null` in *[1-9]*) # don't kill NFS RULES="set reassemble yes no-df\n$RULES" RULES="$RULES\npass in proto { tcp, udp } from any port { 111, 2049 } to any" - RULES="$RULES\npass out proto { tcp, udp } from any to any port { 111, 2049 }" + RULES="$RULES\npass out proto { tcp, udp } from any to any port { 111, 2049 } !received-on any" ;; esac echo $RULES | pfctl -f - -- 2.20.1