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* Conditionalize flushing of IPv4 vs IPv6 rules based on the existance 

of the appropriate configuration file.
  Based on PR 28757 from Jason White.

* Add comments explaining why we flush separately from the reload
  (backwards compat with older ipf(8) binaries).
This commit is contained in:
lukem 2004-12-23 03:31:54 +00:00
parent 3c75d39ba0
commit eca6f3c39f
1 changed files with 28 additions and 6 deletions
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34
etc/rc.d/ipfilter
View File

@ -1,6 +1,6 @@
#!/bin/sh
#
# $NetBSD: ipfilter,v 1.13 2004/11/08 02:09:01 lukem Exp $
# $NetBSD: ipfilter,v 1.14 2004/12/23 03:31:54 lukem Exp $
#
# PROVIDE: ipfilter
@ -26,7 +26,7 @@ ipfilter_prestart()
{
if [ ! -f /etc/ipf.conf ] && [ ! -f /etc/ipf6.conf ]; then
warn "/etc/ipf*.conf not readable; ipfilter start aborted."
#
# If booting directly to multiuser, send SIGTERM to
# the parent (/etc/rc) to abort the boot
#
@ -44,8 +44,18 @@ ipfilter_start()
{
echo "Enabling ipfilter."
/sbin/ipf -E
/sbin/ipf -Fa
/sbin/ipf -6 -Fa
# Do the flush first; since older ipf has different semantics.
#
if [ -f /etc/ipf.conf ]; then
/sbin/ipf -Fa
fi
if [ -f /etc/ipf6.conf ]; then
/sbin/ipf -6 -Fa
fi
# Now load the config files
#
if [ -f /etc/ipf.conf ]; then
/sbin/ipf -f /etc/ipf.conf
fi
@ -64,14 +74,26 @@ ipfilter_reload()
{
echo "Reloading ipfilter rules."
/sbin/ipf -I -Fa
/sbin/ipf -6 -I -Fa
# Do the flush first; since older ipf has different semantics.
#
if [ -f /etc/ipf.conf ]; then
/sbin/ipf -I -Fa
fi
if [ -f /etc/ipf6.conf ]; then
/sbin/ipf -6 -I -Fa
fi
# Now load the config files into the Inactive set
#
if [ -f /etc/ipf.conf ] && ! /sbin/ipf -I -f /etc/ipf.conf; then
err 1 "reload of ipf.conf failed; not swapping to new ruleset."
fi
if [ -f /etc/ipf6.conf ] && ! /sbin/ipf -I -6 -f /etc/ipf6.conf; then
err 1 "reload of ipf6.conf failed; not swapping to new ruleset."
fi
# Swap in the new rules
#
/sbin/ipf -s
}