#! /bin/sh
#
# $Id: ntp_kernel_pll_freq.in,v 1.1.1.1 2006/06/04 20:53:57 he Exp $
#
# Plugin to monitor the kernel's PLL frequency for the NTP
# status.
#
# Usage: Link or copy into /etc/munin/node.d/
#
# Magic markers (optional - only used by munin-config and some
# installation scripts):
#
#%# family=manual
#%# capabilities=autoconf

# If run with the "autoconf"-parameter, give our opinion on wether we
# should be run on this system or not. This is optinal, and only used by
# munin-config. In the case of this plugin, we should most probably
# always be included.

if [ "$1" = "autoconf" ]; then
    if ntpdc -c help >/dev/null 2>&1; then
	echo yes
	exit 0
    else
	echo no
	exit 1
    fi
fi

if [ -f /usr/pkg/etc/munin/ntp-freq-comp ]; then
    fcomp=`cat /usr/pkg/etc/munin/ntp-freq-comp`
else
    fcomp=0
fi

if [ "$1" = "config" ]; then
    echo 'graph_title NTP kernel PLL frequency (ppm +' ${fcomp}')'
#    echo 'graph-args --logarithmic'
    echo 'graph_args --alt-autoscale'
    echo 'graph_vlabel PLL frequency (ppm +' ${fcomp}')'
    echo 'graph_category other'
    echo 'graph_info The frequency for the kernel phase-locked loop used by NTP'
    echo 'ntp_pll_freq.label pll-freq'
    echo 'ntp_pll_freq.info Phase-locked loop frequency in parts per million'
    exit 0
fi

echo -n 'ntp_pll_freq.value '
ntpdc -c kern | awk -v fcomp=$fcomp '/^pll frequency:/ { print $3 + fcomp }'
