#!/bin/sh
#
# @(#)@@PKGORIGIN@@ $HGid$
#
# Daily script to keep the IPv6 routing working
#

# If there is a global system configuration file, suck it in.
if [ -r /etc/defaults/periodic.conf ]
then
    . /etc/defaults/periodic.conf
    source_periodic_confs
fi

#
# Source in RC configurations also because we need the value of the
# IPv6 default router (if any).
#
if [ -r /etc/defaults/rc.conf ]
then
    . /etc/defaults/rc.conf
    source_rc_confs
fi

#
# Default configuration variables
#
: ${daily_local_ipv6_refresh_enable:="NO"}
: ${daily_local_ipv6_refresh_flags:="-n -w2 -q2 -m1 -I"}
: ${daily_local_ipv6_refresh_target:="${ipv6_defaultrouter}"}

rc=0

# Go on only if this script is enabled in the configuration
case "${daily_local_ipv6_refresh_enable}" in
[Yy][Ee][Ss])
    ;;
[Nn][Oo])
    exit 0
    ;;
*)
    echo 1>&2 "$0: WARNING: \$daily_local_ipv6_refresh_enable is not set properly - assuming \"NO\" has been set"
    exit 0
    ;;
esac

case "${daily_local_ipv6_refresh_target}" in
"NO")
    # SKIP because no target or no static IPv6 router given
    echo 1>&2 "$0: WARNING: \$daily_local_ipv6_refresh_target is \`NO'"    
    ;;
'')
    # SKIP because this is an unresolvable router specification
    echo 1>&2 "$0: WARNING: \$ipv6_defaultrouter has an unexpected empty value"
    ;;
*)
    if type anticongestion >/dev/null 2>&1; then
        anticongestion_sleeptime=60
        anticongestion
    fi
    /usr/sbin/traceroute6 ${daily_local_ipv6_refresh_flags} "${daily_local_ipv6_refresh_target}"
    rc=$?
    ;;
esac

exit $rc