#!/usr/bin/perl -I /root/tgmanage
use strict;

use Net::IP;
use Net::IP qw(:PROC);

BEGIN {
        require "include/config.pm";
        eval {
                require "include/config.local.pm";
        };
}

my $base = "/etc";
$base = $ARGV[0] if $#ARGV > -1;
$base .= "/" if not $base =~ m/\/$/ and not $base eq "";

my $dhcpd_base = $base . "dhcp/";
my $dhcpd_conf =  $dhcpd_base . "dhcpd.conf";
my $dhcp_pxeconf =  $dhcpd_base . "pxe-boot.conf";
my $dhcp_ciscoapconf =  $dhcpd_base . "ciscowlc.conf";

my $tgname    = $nms::config::tgname;
my $pri_v4   = $nms::config::pri_v4;
my $pri_net   = $nms::config::pri_net;
my $sec_v4   = $nms::config::sec_v4;
my $pxe_server = $nms::config::pxe_server;
my $ddns_key  = $nms::config::ddns_key;
my $ciscowlc_a  = $nms::config::ciscowlc_a;

my $range = new Net::IP( $pri_net ) or die ("oopxos");
my $mask = $range->mask();	
my ($net, undef) = split "/", $pri_net;


# Create PXE-boot configuration file for DHCP on master.
if ( not -f $dhcpd_conf )
{
		print STDERR "Creating file " . $dhcpd_conf . "\n";
		open DHCPDFILE, ">" . $dhcpd_conf or die ( $! . " " . $dhcpd_conf);

		print DHCPDFILE <<"EOF";
# GENERATED BY make-dhcpd.pl
#
# Central concept: as little config in the main .conf,
# include almost everything from separate files..
#
# log-facility local7;
option domain-name "$tgname.gathering.org";
option domain-name-servers $pri_v4, $sec_v4;
default-lease-time 3600;
max-lease-time 7200;
authoritative;

ddns-update-style interim;
key DHCP_UPDATER {
        algorithm HMAC-MD5.SIG-ALG.REG.INT;
        secret $ddns_key;
}

subnet $net netmask $mask {}

include "/etc/dhcp/revzones.conf";
include "/etc/dhcp/generated-include.conf";
include "/etc/dhcp/pxe-boot.conf";
include "/etc/dhcp/ciscowlc.conf";

EOF
		close DHCPDFILE;
}

# Create PXE-boot configuration file for DHCP on master.
if ( not -f $dhcp_pxeconf )
{
		print STDERR "Creating file " . $dhcp_pxeconf . "\n";
		open PXEFILE, ">" . $dhcp_pxeconf or die ( $! . " " . $dhcp_pxeconf);

		print PXEFILE "next-server " . $pxe_server . ";\n";
		print PXEFILE "filename \"pxelinux.0\";\n";

		close PXEFILE;
}


# Create PXE-boot configuration file for DHCP on master.
if ( not -f $dhcp_ciscoapconf )
{
		print STDERR "Creating file " . $dhcp_ciscoapconf . "\n";
		open CISCOFILE, ">" . $dhcp_ciscoapconf or die ( $! . " " . $dhcp_pxeconf);

		print CISCOFILE <<"EOF";
option space CiscoAP;
option CiscoAP.server-address code 241 = array of ip-address;
set vendor-string = option vendor-class-identifier;

class "cisco-aps" {
       match if substring (option vendor-class-identifier, 0, 8) = "Cisco AP";
       vendor-option-space CiscoAP;
       option CiscoAP.server-address $ciscowlc_a;
}
EOF
		close CISCOFILE;
}