(Resending since original never reached its goal.) I have a refinement to the proposed wrapper, and also a new wrapper for "ifconfig".
The binary /sbin/ifconfig is pushed to /lib/freebsd/ifconfig.
Taken together, the two wrappers are able to boot my single
homed system from only /etc/network/interfaces, containing
one static IPv4 and one static IPv6 assignement. Immediately
at first login, I am able to successfully execute
$ ping -c1 www.google.com
$ ping6 -c1 ipv6.google.com
The changes to my previous script /sbin/route is a more
restrictive detection of "gw-state", thus hopefully letting
administrators use "gw" as host name!
Best regards,
Mats E A
---------------------------------------------
#!/bin/sh
#
# /sbin/ifconfig
#
# Experimental wrapper for /lib/freebsd/ifconfig.
#
# The invocation of "ifconfig" from "ifup/ifdown"
# needs corrections in GNU/kFreeBSD.
set -e
# Is this call intended to set an IPv6 address
# without using "-inet6"?
if [ $# -eq 3 -a "$2" = "add" ] ; then
echo $3 | egrep -q '.*:.*/[0-9]+'
if [ $? -eq 0 ] ; then
# "add" is is to be deleted, and "inet6" must be augmented.
# TODO: Should "alias" be appended?
exec /lib/freebsd/ifconfig $1 inet6 $3
fi
fi
# The general case, pass everything.
exec /lib/freebsd/ifconfig $@
----------------------------------------------------------
--- /sbin/route.orig
+++ /sbin/route
@@ -74,7 +74,7 @@
while [ $# -gt 0 ]; do
if [ -n "$HAVE_SEEN_GW" ] ; then
if [ $# -eq 1 ] ; then
- # We have reach the end. An interface name
+ # We have reached the end. An interface name
# appears as last argument, since we are in
# a state caused by a call from ifupdown.
# We simply discard the interface name.
@@ -87,7 +87,9 @@
args="${args} $1"
fi
else
- if [ "$1" = "gw" ] ; then
+ # Ifup and ifdown use "gw" only in two forms.
+ if [ "$1" = "gw" -a \( $# -eq 3 -o \( $# -eq 5 -a "$3" = "metric" \) \) ]
+ then
# Change state and discard "gw",
# hoping that no administrator ever
# names a host or a network as "gw".
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