/usr/share/doc/ppp/examples/scripts/ipv6-up.sample is in ppp 2.4.5-5ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 | #!/bin/sh
#
# This script is called with the following parameters:
# interface tty speed local-address remote-address ipparam
#
# Start router advertisements on this link.
# Based on radvd 0.5.0 behaviour
DEVICE="$1"
CFGFILE="/etc/radvd.conf-$DEVICE"
PIDFILE="/var/run/radvd-$DEVICE.pid"
EXEFILE="/usr/sbin/radvd"
if [ -x "$EXEFILE" -a -f "$CFGFILE" ]; then
touch "$PIDFILE"
if [ ! -f "$PIDFILE" ]; then
echo "error: $PIDFILE is not a regular file. Aborting"
exit 0
fi
PID="$(cat "$PIDFILE")"
if [ -n "$PID" ]; then
ps h "$PID" >/dev/null 2>&1 && exit 0
fi
# radvd 0.5.0 doesn't write a pid-file so we do it here
# enabling debugging keeps radvd in foreground, putting it
# on background gives us the PID.
"$EXEFILE" -d 1 -C "$CFGFILE" &
echo $! >"$PIDFILE"
fi
|