diff options
Diffstat (limited to 'dhcp_wizard/Dhcp.pm')
| -rwxr-xr-x | dhcp_wizard/Dhcp.pm | 230 |
1 files changed, 230 insertions, 0 deletions
diff --git a/dhcp_wizard/Dhcp.pm b/dhcp_wizard/Dhcp.pm new file mode 100755 index 00000000..831c5a38 --- /dev/null +++ b/dhcp_wizard/Dhcp.pm @@ -0,0 +1,230 @@ +#!/usr/bin/perl + +# Drakwizard + +# Copyright (C) 2002 Arnaud Desmons <adesmons@mandrakesoft.com> +# 2003 Florent Villard <warly@mandrakesoft.com> +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2, or (at your option) +# any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + +package Dhcp; +use strict; + +use standalone; +use interactive; +use common; +use MDK::Wizard::Wizcommon; + +my $wiz = new Wizcommon; +my $wiz_ip_server = $wiz->{net}->itf_get("IPADDR"); +my $d = "$4" if $wiz_ip_server =~ /(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})/; +my $s = "$1.$2.$3" if $wiz_ip_server =~ /(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})/; + +my $o = { + name => N('DHCP Wizard'), + var => { + ip1 => '', + ip2 => '' + }, + needed_rpm => [ 'dhcp-server' ] + }; + +$o->{pages} = { + welcome => { + name => N('DHCP Wizard') . "\n\n\n" . N('DHCP is a service that automatically assigns networking addresses to your workstations.') . "\n\n\n" . N('This wizard will help you configuring the DHCP services of your server.'), + post => sub { $wiz->check_dhcp }, + no_back => 1, + next => 'ip_range' + }, + ip_range => { + name => N('Range of addresses used by dhcp') . "\n\n\n" . N('Select the range of addresses assigned to the workstations by the DHCP service; unless you have special needs, you can safely accept the proposed values.'), + pre => sub { + $o->{var}{ip1} ||= compute_range(); + $o->{var}{ip2} ||= compute_range2() + }, + post => \&check, + data => [ + { label => '' }, + { label => N('Lowest IP Address:'), val => \$o->{var}{ip1} }, + { label => N('Highest IP Address:'), val => \$o->{var}{ip2} }, + ], + next => 'summary' + }, + dhcp_warning => { + name => N('Warning'), + data => [ { label => N('You are in dhcp, server may not work with your configuration.') } ], + next => 'ip_range' + }, + ip_range_error => { + name => N('Error'), + data => [ { label => N('The IP range specified is not correct.') } ], + next => 'ip_range' + }, + ip_range_warning => { + name => N('Warning'), + data => [ { label => N('The IP range specified is not in server address range.') } ], + next => 'summary' + }, + server_in_range => { + name => N('Error'), + data => [ { label => N('The IP of the server must not be in range.') } ], + next => 'ip_range' + }, + summary => { + name => N('Configuring the DHCP Server') . "\n\n" . N('The wizard collected the following parameters needed to configure your DHCP service:'), + data => [ + { label => N('Lowest IP Address:'), fixed_val => \$o->{var}{ip1} }, + { label => '' }, + { label => N('Highest IP Address:'), fixed_val => \$o->{var}{ip2} }, + ], + post => \&do_it, + next => 'end' + }, + end => { + name => N('Congratulations'), + data => [ { label => N('The wizard successfully configured the DHCP services of your server.') } ], + end => 1, + next => 0 + }, +}; + +sub compute_range { + my $n; + if ($d <= 64) { $n = "65" } + elsif ($d <= 128) { $n = "129" } + else { $n = "1"} + "$s.$n"; +} + +sub compute_range2 { + my $n; + if ($d <= 128) { $n = "254" } + elsif ($d > 192) { $n = "192" } + else { $n = "128"} + "$s.$n"; +} + +sub check { + my $r1_trunc = "$1.$2.$3" if $o->{var}{ip1} =~ /(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})/; + my $r2_trunc = "$1.$2.$3" if $o->{var}{ip2} =~ /(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})/; + my $d1 = "$4" if $o->{var}{ip1} =~ /(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})/; + my $d2 = "$4" if $o->{var}{ip2} =~ /(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})/; + my $s_trunc = "$1.$2.$3" if $wiz_ip_server =~ /(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})/; + my $ds = "$4" if $wiz_ip_server =~ /(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})/; + if (!$r1_trunc) { standalone::explanations("DHCP wizard : incorrect adress range 1"); return 'ip_range_error'} + if (!$r2_trunc) { standalone::explanations("DHCP wizard : incorrect adress range 2"); return 'ip_range_error'} + if ($r1_trunc ne $s_trunc || $r2_trunc ne $s_trunc) { + standalone::explanations("DHCP wizard : range not in network"); + return 'ip_range_warning'; + } + if (!$d1 || !$d2 || $d1 > $d2) { standalone::explanations("DHCP wizard : bad range"); return 'ip_range_error'} + if ($ds >= $d1 && $ds <= $d2) { standalone::explanations("DHCP wizard : server in range"); return 'server_in_range'} + 0 +} + +sub do_it { + $::DEBUG and return; + my $wiz_domain_name = $wiz->{net}->network_get("DOMAINNAME"); + my $wiz_host_name = $wiz->{net}->network_get("HOSTNAME"); + my $wiz_gateway = $wiz->{net}->network_get("GATEWAY"); + my $wiz_dns = $wiz->{net}->network_get("dnsServer"); + if ($wiz_dns eq '127.0.0.1') { + $wiz_dns = $wiz_ip_server + } + if (!$wiz_gateway) { + my $t = `LC_ALL=C /sbin/ip route list scope global`; + ($wiz_gateway) = $t =~ /default via (\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}) dev/; + } + my $wiz_ip_net = "$1.$2.$3.0" if $wiz_ip_server =~ /(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})/; + my $err = check(); + return $err if $err != 10; + my $wiz_ip_range1 = $o->{var}{ip1}; + my $wiz_ip_range2 = $o->{var}{ip2}; + my $wiz_ip_netmask = $wiz->{net}->itf_get("NETMASK"); + my $wiz_device = $wiz->{net}->default_itf(); +# patch to rewrite when got new file about dhcp with INTERFACES value +# currently, I put the device to configure as dhcp server +# in /etc/sysconfig/dhcpd + +#[ -f /etc/sysconfig/dhcpd ] && cp -f /etc/sysconfig/dhcpd /var/tmp/wiz_bck/orig/dhcpd + my $file = "/etc/sysconfig/dhcpd"; + -f $file and MDK::Common::cp_af($file, $file.".orig"); + + $file = "/etc/rc.d/init.d/dhcpd"; +# now patching etc/rc.d/init.d/dhcpd + standalone::explanations("now patching etc/rc.d/init.d/dhcpd"); + if (!`grep INTERFACES $file`){ + MDK::Common::append_to_file($file, "\nINTERFACES=$wiz_device"); + MDK::Common::cp_af($file, $file . ".orig"); + my $tmp = `/bin/mktemp /tmp/Dhcpconf.XXXXXX` or die "can't make a temp file: $!"; + open(NEW, "> $tmp") or die "can't open $tmp: $!"; + open(OLD, "< $file") or die "can't open default: $!"; + while (<OLD>) { + if (m|daemon\s*/usr/sbin/dhcp|) { + print NEW "\tif [ -f /etc/sysconfig/dhcpd ]; then +\t\t. /etc/sysconfig/dhcpd +\t\tDEV=\$INTERFACES +\tfi\n"; + } + print NEW $_; + } + close(OLD); + close(NEW); + chomp($tmp); + system("mv $tmp $file"); + } + $file = "/etc/dhcpd.conf"; + -f $file and MDK::Common::cp_af($file, $file.".orig"); + output($file, map { + s|__hname__|$wiz_host_name|g; + s|__dns__|$wiz_dns|g; + s|__net__|$wiz_ip_net|g; + s|__ip__|$wiz_ip_server|g; + s|__mask__|$wiz_ip_netmask|g; + s|__rng1__|$wiz_ip_range1|g; + s|__rng2__|$wiz_ip_range2|g; + s|__dname__|$wiz_domain_name|g; + s|__gateway__|$wiz_gateway|g; + $_; + } cat_ ("__WIZ_HOME__/dhcp_wizard/scripts/dhcpd.conf.default")); + standalone::explanations("$file: hname = $wiz_host_name, net = $wiz_ip_net, ip = $wiz_ip_server, +mask = $wiz_ip_netmask, rng1 = $wiz_ip_range1, rng2 = $wiz_ip_range2, dname = $wiz_domain_name"); + MDK::Common::touch("/var/dhcpd/dhcpd.leases"); +# modifying webmin config + $file="/etc/webmin/dhcpd/config"; + if (-f $file) { + my %mdk = Vareqval->get($file); + $mdk{lease_file} = "/var/dhcpd/dhcpd.leases"; + $mdk{interfaces} = $wiz_device; + standalone::explanations("$file: lease_file = $mdk{lease_file}, interfaces = $mdk{interfaces}"); + Vareqval->commit($file, \%mdk); + !$ENV{wiz_authoritative} and output($file, map { + s|^\s*not\s*authoritative.*|\#$&|i; + $_ + } cat_ ("/etc/dhcpd.conf")); + } + + system("/etc/rc.d/init.d/dhcpd restart"); + 10; +} + +sub new { + my ($class, $conf) = @_; + bless { + o => $o, + }, $class; +} + +1; |