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#!/usr/bin/perl |
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# Drakwizard |
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|
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# Copyright (C) 2002, 2003 Mandrakesoft |
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# |
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# Authors: Arnaud Desmons <adesmons@mandrakesoft.com> |
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# Florent Villard <warly@mandrakesoft.com> |
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# |
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# This program is free software; you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
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# the Free Software Foundation; either version 2, or (at your option) |
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# any later version. |
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# |
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# This program is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# GNU General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with this program; if not, write to the Free Software |
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# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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|
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package MDK::Wizard::Dhcp; |
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use strict; |
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|
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use common; |
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use services; |
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use MDK::Wizard::Varspaceval; |
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use MDK::Wizard::Wizcommon; |
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|
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my $wiz = new MDK::Wizard::Wizcommon; |
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|
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my $wiz_ip_server = $wiz->{net}->itf_get("IPADDR"); |
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my $wiz_tftpserverip = $wiz_ip_server; |
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|
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my $o = { |
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name => N("DHCP Wizard"), |
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var => { |
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ip1 => '', |
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ip2 => '', |
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pxe => '1', |
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gateway => '', |
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wiz_authoritative => 0, |
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interface => $wiz->{net}->default_itf |
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}, |
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needed_rpm => [ 'dhcp-server' ], |
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defaultimage => "/usr/share/mcc/themes/default/dhcp_server-mdk.png", |
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}; |
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|
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$o->{pages} = { |
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welcome => { |
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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."), |
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no_back => 1, |
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next => 'interface', no_back => 1, |
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}, |
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interface => { |
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name => N("Interface the dhcp server must listen to"), |
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pre => sub { |
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if (!$wiz_ip_server) { |
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my $interface = 'eth0'; |
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($wiz_ip_server) = `/sbin/ip addr show dev $interface` =~ /^\s*inet\s+(\d+\.\d+\.\d+\.\d+)/m; |
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} |
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$o->{var}{interface} |= $wiz->{net}->default_itf; |
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}, |
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data => [ |
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{ list => [ keys %{$wiz->{net}{itf}} ], val => \$o->{var}{interface} }, |
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], |
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next => 'ip_range', |
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no_back => 1, |
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}, |
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ip_range => { |
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name => N("Range of addresses used by DHCP") . "\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. (ie: 192.168.100.20 192.168.100.40)") . "\n\n" . N("If you want to enable PXE in your dhcp server please check the box (Pre-boot eXecution Environment, a protocol that allows computers to boot through the network)."), |
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pre => sub { |
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#($wiz_ip_server) = `/sbin/ip addr show dev $o->{var}{interface}` =~ /^\s*inet\s+(\d+\.\d+\.\d+\.\d+)/m; |
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($wiz_ip_server) = $wiz->{net}{itf}{$o->{var}{interface}}{IPADDR}; |
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$wiz_tftpserverip = $wiz_ip_server; |
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my $d = $4 if $wiz_ip_server =~ /(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})/; |
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my $s = "$1.$2.$3" if $wiz_ip_server =~ /(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})/; |
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$o->{var}{ip1} = compute_range($d, $s); |
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$o->{var}{ip2} = compute_range2($d, $s); |
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}, |
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data => [ |
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{ label => N("Lowest IP address:"), val => \$o->{var}{ip1} }, |
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{ label => N("Highest IP address:"), val => \$o->{var}{ip2} }, |
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{ label => N("Gateway IP address:"), val => \$o->{var}{gateway} }, |
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{ label => N("Enable PXE:"), type => 'bool', val => \$o->{var}{pxe} }, |
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], |
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next => 'summary', |
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no_back => 1, |
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}, |
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dhcp_warning => { |
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name => N("Warning") . "\n\n" . N("You are in dhcp, server may not work with your configuration."), |
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ignore => 1, |
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next => 'ip_range', |
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}, |
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ip_range_error => { |
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name => N("Error") . "\n\n" . N("The IP range specified is not correct."), |
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ignore => 1, |
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next => 'ip_range', |
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}, |
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ip_range_warning => { |
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name => N("Warning") . "\n\n" . N("The IP range specified is not in server address range."), |
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ignore => 1, |
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next => 'summary', |
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}, |
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server_in_range => { |
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name => N("Error") . "\n\n" . N("The IP of the server must not be in range."), |
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ignore => 1, |
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next => 'ip_range', |
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}, |
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summary => { |
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name => N("Configuring the DHCP server") . "\n\n" . N("The wizard collected the following parameters needed to configure your DHCP service:"), |
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pre => sub { |
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$o->{var}{pxeornot} = $o->{var}{pxe} ? N("enabled") : N("disabled"); |
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}, |
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data => [ |
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{ label => N("Lowest IP address:"), val_ref => \$o->{var}{ip1} }, |
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{ label => N("Highest IP address:"), val_ref => \$o->{var}{ip2} }, |
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{ label => N("Gateway IP address:"), val_ref => \$o->{var}{gateway} }, |
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{ label => N("Interface:"), val_ref => \$o->{var}{interface} }, |
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{ label => N("Enable PXE:"), val_ref => \$o->{var}{pxeornot} }, |
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], |
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post => \&do_it, |
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next => 'end', |
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}, |
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end => { |
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name => N("Congratulations") . "\n\n" . N("The wizard successfully configured the DHCP services."), |
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end => 1, |
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no_back => 1, |
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}, |
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error_end => { |
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name => N("Failed"), |
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data => [ { label => N("Relaunch drakwizard, and try to change some parameters.") } ], |
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no_back => 1, |
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end => 1, |
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}, |
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}; |
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|
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|
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|
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sub compute_range { |
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my ($d, $s) = @_; |
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my $n = $d <= 64 ? "65" : $d <= 128 ? "129" : "1"; |
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"$s.$n"; |
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} |
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sub compute_range2 { |
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my ($d, $s) = @_; |
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my $n = $d <= 128 ? "254" : $d > 192 ? "192" : "128"; |
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"$s.$n"; |
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} |
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sub check_ip { return $_[0] < 0 || $_[0] > 255 ? 0 : 1 } |
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|
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sub check { |
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my $r1_trunc = "$1.$2.$3" if $o->{var}{ip1} =~ /(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})/; |
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foreach ($1, $2, $3, $4) { check_ip($_) or return 'ip_range_error' } |
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my $r2_trunc = "$1.$2.$3" if $o->{var}{ip2} =~ /(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})/; |
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foreach ($1, $2, $3, $4) { check_ip($_) or return 'ip_range_error' } |
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my $d1 = $4 if $o->{var}{ip1} =~ /(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})/; |
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my $d2 = $4 if $o->{var}{ip2} =~ /(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})/; |
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my $s_trunc = "$1.$2.$3" if $wiz_ip_server =~ /(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})/; |
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my $ds = $4 if $wiz_ip_server =~ /(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})/; |
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if (!$r1_trunc) { standalone::explanations("DHCP wizard : incorrect adress range 1"); return 'ip_range_error' } |
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if (!$r2_trunc) { standalone::explanations("DHCP wizard : incorrect adress range 2"); return 'ip_range_error' } |
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if ($r1_trunc ne $s_trunc || $r2_trunc ne $s_trunc) { |
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standalone::explanations("DHCP wizard : range not in network"); |
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return 'ip_range_warning'; |
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} |
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if (!$d1 || !$d2 || $d1 > $d2) { standalone::explanations("DHCP wizard : bad range"); return 'ip_range_error' } |
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if ($ds >= $d1 && $ds <= $d2) { standalone::explanations("DHCP wizard : server in range"); return 'server_in_range' } |
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return 'interface' if keys %{$wiz->{net}{itf}} > 1; |
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0; |
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} |
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sub do_it { |
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$::testing and return; |
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my $in = 'interactive'->vnew('su', 'DHCP'); |
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check_starts_on_boot($in, 'dhcpd'); |
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my $wiz_domain_name = $wiz->{net}->network_get("DOMAINNAME"); |
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my $wiz_host_name = $wiz->{net}->network_get("HOSTNAME"); |
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my $wiz_dns = $wiz->{net}->network_get("dnsServer"); |
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if ($wiz_dns eq '127.0.0.1') { |
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$wiz_dns = $wiz_ip_server; |
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} |
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if (!$o->{var}{gateway}) { |
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my $t = `LC_ALL=C /sbin/ip route list scope global`; |
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($o->{var}{gateway}) = $t =~ /default via (\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}) dev/; |
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} |
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my $wiz_ip_net = "$1.$2.$3.0" if $wiz_ip_server =~ /(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})/; |
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my $err = check(); |
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return $err if $err; |
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my $wiz_ip_range1 = $o->{var}{ip1}; |
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my $wiz_ip_range2 = $o->{var}{ip2}; |
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my $wiz_ip_netmask = $wiz->{net}->itf_get("NETMASK"); |
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if (!$wiz_ip_netmask) { $wiz_ip_netmask = "255.255.255.0" } |
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my $wiz_device = $o->{var}{interface}; |
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# patch to rewrite when got new file about dhcp with INTERFACES value |
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# currently, I put the device to configure as dhcp server |
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# in /etc/sysconfig/dhcpd |
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#[ -f /etc/sysconfig/dhcpd ] && cp -f /etc/sysconfig/dhcpd /var/tmp/wiz_bck/orig/dhcpd |
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my $file = "/etc/sysconfig/dhcpd"; |
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-f $file and MDK::Common::cp_af($file, $file . ".orig"); |
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standalone::explanations("now patching etc/sysconfig/dhcpd"); |
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if (!`grep INTERFACES $file`) { |
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my $tmp = `/bin/mktemp /tmp/Dhcpconf.XXXXXX` or die "can't make a temp file: $!"; |
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chomp($tmp); |
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output($tmp, |
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(map { |
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if (m|INTERFACE|) { |
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"# $_"; |
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} |
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# FIXME: we probably lack a "else": |
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$_; |
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} cat_or_die($file)), |
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"\n# Added by drakwizard\nINTERFACES=$wiz_device"); |
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system("mv $tmp $file"); |
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} |
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$file = "/etc/dhcpd.conf"; |
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-f $file and MDK::Common::cp_af($file, $file . ".orig"); |
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output($file, map { |
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s|__hname__|$wiz_host_name|g; |
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s|__dns__|$wiz_dns|g; |
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s|__net__|$wiz_ip_net|g; |
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s|__ip__|$wiz_ip_server|g; |
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s|__mask__|$wiz_ip_netmask|g; |
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s|__rng1__|$wiz_ip_range1|g; |
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s|__rng2__|$wiz_ip_range2|g; |
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s|__dname__|$wiz_domain_name|g; |
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s|__gateway__|$o->{var}{gateway}|g; |
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s|__tftpserverip__|$wiz_tftpserverip|g; |
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s|__dhcpd_interface__|$wiz_device|g; |
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$_; |
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} cat_("/usr/share/wizards//dhcp_wizard/scripts/dhcpd.conf.default")); |
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standalone::explanations("$file: hname = $wiz_host_name, net = $wiz_ip_net, ip = $wiz_ip_server, |
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mask = $wiz_ip_netmask, rng1 = $wiz_ip_range1, rng2 = $wiz_ip_range2, dname = $wiz_domain_name"); |
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MDK::Common::touch("/var/dhcpd/dhcpd.leases"); |
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# modifying webmin config |
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$file="/etc/webmin/dhcpd/config"; |
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if (-f $file) { |
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my %mdk = MDK::Wizard::Varspaceval->get($file); |
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$mdk{lease_file} = "/var/dhcpd/dhcpd.leases"; |
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$mdk{interfaces} = $wiz_device; |
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standalone::explanations("$file: lease_file = $mdk{lease_file}, interfaces = $mdk{interfaces}"); |
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MDK::Wizard::Varspaceval->commit($file, \%mdk); |
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!$o->{var}{wiz_authoritative} and output($file, map { |
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s|^\s*not\s*authoritative.*|#$&|i; |
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$_; |
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} cat_("/etc/dhcpd.conf")); |
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} |
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|
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if ($o->{var}{pxe} eq '0') { |
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substInFile { |
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s/#\s+deny members of "PXE"/deny members of "PXE"/; |
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} "/etc/dhcpd.conf"; |
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} |
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|
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$o->{var}{gateway} or substInFile { |
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s/#\s+doption routers.*//; |
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} "/etc/dhcpd.conf"; |
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reload_or_restart('dhcpd'); |
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check_started('dhcpd'); |
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} |
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|
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sub new { |
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my ($class) = @_; |
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bless $o, $class; |
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} |
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|
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1; |
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