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plugins/ntp/ntp_kernel_pll_tol

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+#!/bin/sh
+# -*- sh -*-
+
+: <<EOF
+
+=head1 NAME
+
+ntp_kernel_pll_tol - Plugin to monitor the kernel's PLL frequency tolerance for
+the NTP status
+
+=head1 CONFIGURATION
+
+No configuration
+
+=head1 AUTHORS
+
+Original authors unknown
+ntp_kernel_pll_freq script patched by azet@azet.org for frequency tolerance support
+
+=head1 LICENSE
+
+Unknown license
+
+=head1 BUGS
+
+None known
+
+=head1 MAGIC MARKERS
+
+ #%# family=auto
+ #%# capabilities=autoconf
+
+=cut
+
+EOF
+
+if [ "$1" = "autoconf" ]; then
+    { ntpq -c kerninfo; ntpdc -c kerninfo; } 2>/dev/null | 
+    awk 'BEGIN { ev=1; }
+         /^frequency tolerance:/ { ev=0; } 
+         END { if (ev == 0) { print "yes";} else { print "no"; } exit ev; }'
+    exit 0
+fi
+
+if [ "$1" = "config" ]; then
+    echo 'graph_title NTP kernel PLL frequency tolerance (ppm)'
+    echo 'graph_args --alt-autoscale'
+    echo 'graph_vlabel PLL frequency (ppm)'
+    echo 'graph_category time'
+    echo 'graph_info The frequency tolerance of the kernel phase-locked loop used by NTP'
+    echo 'ntp_pll_tol.label pll-tolerance'
+    echo 'ntp_pll_tol.info Phase-locked loop frequency tolerance in parts per million'
+    exit 0
+fi
+
+echo -n 'ntp_pll_tol.value '
+{ ntpq -c kerninfo; ntpdc -c kerninfo; } 2>/dev/null | awk '/^frequency tolerance:/ { print $3 }'