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#!/usr/bin/env perl
use strict;
use warnings;
use POSIX;
my $dhcpd_cmd="/usr/local/bin/dhcpd-pools";
my $dhcpd_lf="/var/lib/dhcp/dhcpd6.leases";
my $dhcpd_cf="/etc/dhcp/dhcpd6.conf";
my @output = `$dhcpd_cmd -c $dhcpd_cf -l $dhcpd_lf`;
my $line;
my $max;
my $current;
my $percent;
#Sum of all ranges:
#name max cur percent touch t+c t+c perc
#All networks 22776 6348 27.871 3973 10321 45.315
my $count=0;
for $line (@output) {
$count=1 if ($line =~ /^Sum of all ranges:/);
if ($count >= 1 and $count <= 3) {
#print "DEBUG: $line\n";
if ($line =~ /\s+([\d]+)\s+([\d]+)\s+([\d]+\.[\d]+)/) {
$max=($1-$2);
$current=$2;
$percent=ceil($3);
if (defined $ARGV[0] && $ARGV[0] eq "config") {
print_config();
} else {
print "dhcp_lease_total_current.value $current\n";
}
}
$count++;
}
}
sub print_config {
print <<EOF;
graph_title DHCP Total leases
graph_vlabel Total leases
graph_category DHCP
dhcp_lease_total_current.label Currently used IPv6 Leases
dhcp_lease_total_current.min 0
dhcp_lease_total_current.draw AREASTACK
EOF
}
# print_config;
#shared net name first ip last ip max cur percent touch t+c t+c perc
# All networks 88.92.0.4 - 88.92.0.62 59 26 44.068 2 28 47.458
#}
#
# dhcp_lease_total_current_max.colour #ff0000
# dhcp_lease_total_current_max.label Totalt IPv4 Leases
# dhcp_lease_total_current.colour #ff7000
# pts.draw AREASTACK
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