1#!/bin/sh
2#
3# This script is called with the following parameters:
4# interface tty speed local-address remote-address ipparam
5#
6
7
8# Start router advertisements on this link.
9# Based on radvd 0.5.0 behaviour
10
11DEVICE="$1"
12
13CFGFILE="/etc/radvd.conf-$DEVICE"
14PIDFILE="/var/run/radvd-$DEVICE.pid"
15EXEFILE="/usr/sbin/radvd"
16
17if [ -x "$EXEFILE" -a -f "$CFGFILE" ]; then
18    touch "$PIDFILE"
19    if [ ! -f "$PIDFILE" ]; then
20	echo "error: $PIDFILE is not a regular file. Aborting"
21	exit 0
22    fi
23
24    PID="$(cat "$PIDFILE")"
25    if [ -n "$PID" ]; then
26	ps h "$PID" >/dev/null 2>&1 && exit 0
27    fi
28
29    # radvd 0.5.0 doesn't write a pid-file so we do it here
30    # enabling debugging keeps radvd in foreground, putting it
31    # on background gives us the PID.
32    "$EXEFILE" -d 1 -C "$CFGFILE" &
33    echo $! >"$PIDFILE"
34fi
35