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author | Dexter Morgan <dmorgan@mageia.org> | 2011-06-02 20:51:50 +0000 |
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committer | Dexter Morgan <dmorgan@mageia.org> | 2011-06-02 20:51:50 +0000 |
commit | f1d6b8a9d3c06f74e904959887cf043d09aff687 (patch) | |
tree | 969cb9fdc3becc19b1f2a21c3a9e3cc2e15f39e6 /dhcp_wizard/Dhcp.pm | |
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Branch for updates
Diffstat (limited to 'dhcp_wizard/Dhcp.pm')
-rwxr-xr-x | dhcp_wizard/Dhcp.pm | 285 |
1 files changed, 285 insertions, 0 deletions
diff --git a/dhcp_wizard/Dhcp.pm b/dhcp_wizard/Dhcp.pm new file mode 100755 index 00000000..2f7b4c46 --- /dev/null +++ b/dhcp_wizard/Dhcp.pm @@ -0,0 +1,285 @@ +#!/usr/bin/perl + +# Drakwizard + +# Copyright (C) 2002, 2003 Mandrakesoft +# +# Authors: Arnaud Desmons <adesmons@mandrakesoft.com> +# 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 MDK::Wizard::Dhcp; +use strict; + +use common; +use services; +use MDK::Wizard::Varspaceval; +use MDK::Wizard::Wizcommon; + +my $wiz = new MDK::Wizard::Wizcommon; + +my $wiz_ip_server = $wiz->{net}->itf_get("IPADDR"); +my $wiz_tftpserverip = $wiz_ip_server; + +my $o = { + name => N("DHCP Wizard"), + var => { + ip1 => '', + ip2 => '', + pxe => '1', + gateway => '', + wiz_authoritative => 0, + interface => $wiz->{net}->default_itf + }, + needed_rpm => [ 'dhcp-server' ], + defaultimage => "/usr/share/mcc/themes/default/dhcp_server-mdk.png", + }; + +$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."), + no_back => 1, + next => 'interface', no_back => 1, + }, + interface => { + name => N("Interface the dhcp server must listen to"), + pre => sub { + if (!$wiz_ip_server) { + my $interface = 'eth0'; + ($wiz_ip_server) = `/sbin/ip addr show dev $interface` =~ /^\s*inet\s+(\d+\.\d+\.\d+\.\d+)/m; + } + $o->{var}{interface} |= $wiz->{net}->default_itf; + }, + data => [ + { list => [ keys %{$wiz->{net}{itf}} ], val => \$o->{var}{interface} }, + ], + next => 'ip_range', + no_back => 1, + }, + ip_range => { + 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)."), + pre => sub { + #($wiz_ip_server) = `/sbin/ip addr show dev $o->{var}{interface}` =~ /^\s*inet\s+(\d+\.\d+\.\d+\.\d+)/m; + ($wiz_ip_server) = $wiz->{net}->{itf}{$o->{var}{interface}}{IPADDR}; + $wiz_tftpserverip = $wiz_ip_server; + 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})/; + $o->{var}{ip1} = compute_range($d, $s); + $o->{var}{ip2} = compute_range2($d, $s); + }, + data => [ + { label => N("Lowest IP address:"), val => \$o->{var}{ip1} }, + { label => N("Highest IP address:"), val => \$o->{var}{ip2} }, + { label => N("Gateway IP address:"), val => \$o->{var}{gateway} }, + { label => N("Enable PXE:"), type => 'bool', val => \$o->{var}{pxe} }, + ], + next => 'summary', + no_back => 1, + }, + dhcp_warning => { + name => N("Warning") . "\n\n" . N("You are in dhcp, server may not work with your configuration."), + ignore => 1, + next => 'ip_range', + }, + ip_range_error => { + name => N("Error") . "\n\n" . N("The IP range specified is not correct."), + ignore => 1, + next => 'ip_range', + }, + ip_range_warning => { + name => N("Warning") . "\n\n" . N("The IP range specified is not in server address range."), + ignore => 1, + next => 'summary', + }, + server_in_range => { + name => N("Error") . "\n\n" . N("The IP of the server must not be in range."), + ignore => 1, + 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:"), + pre => sub { + $o->{var}{pxeornot} = $o->{var}{pxe} ? N("enabled") : N("disabled"); + }, + data => [ + { label => N("Lowest IP address:"), val_ref => \$o->{var}{ip1} }, + { label => N("Highest IP address:"), val_ref => \$o->{var}{ip2} }, + { label => N("Gateway IP address:"), val_ref => \$o->{var}{gateway} }, + { label => N("Interface:"), val_ref => \$o->{var}{interface} }, + { label => N("Enable PXE:"), val_ref => \$o->{var}{pxeornot} }, + ], + post => \&do_it, + next => 'end', + }, + end => { + name => N("Congratulations") . "\n\n" . N("The wizard successfully configured the DHCP services."), + end => 1, + no_back => 1, + }, + error_end => { + name => N("Failed"), + data => [ { label => N("Relaunch drakwizard, and try to change some parameters.") } ], + no_back => 1, + end => 1, + }, + }; + + + +sub compute_range { + my ($d, $s) = @_; + my $n; + if ($d <= 64) { $n = "65" } + elsif ($d <= 128) { $n = "129" } + else { $n = "1" } + "$s.$n"; +} + +sub compute_range2 { + my ($d, $s) = @_; + my $n; + if ($d <= 128) { $n = "254" } + elsif ($d > 192) { $n = "192" } + else { $n = "128" } + "$s.$n"; +} + +sub check { + my $check_ip = sub { return $_[0] < 0 || $_[0] > 255 ? 0 : 1 }; + my $r1_trunc = "$1.$2.$3" if $o->{var}{ip1} =~ /(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})/; + foreach ($1, $2, $3, $4) { $check_ip->($_) or return 'ip_range_error' } + my $r2_trunc = "$1.$2.$3" if $o->{var}{ip2} =~ /(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})/; + foreach ($1, $2, $3, $4) { $check_ip->($_) or return 'ip_range_error' } + 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 <= $d2) { standalone::explanations("DHCP wizard : server in range"); return 'server_in_range' } + return 'interface' if keys %{$wiz->{net}{itf}} > 1; + 0 +} + +sub do_it { + $::testing and return; + my $in = 'interactive'->vnew('su', 'DHCP'); + check_starts_on_boot($in, 'dhcpd'); + my $wiz_domain_name = $wiz->{net}->network_get("DOMAINNAME"); + my $wiz_host_name = $wiz->{net}->network_get("HOSTNAME"); + my $wiz_dns = $wiz->{net}->network_get("dnsServer"); + if ($wiz_dns eq '127.0.0.1') { + $wiz_dns = $wiz_ip_server + } + if (!$o->{var}{gateway}) { + my $t = `LC_ALL=C /sbin/ip route list scope global`; + ($o->{var}{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 != 0; + my $wiz_ip_range1 = $o->{var}{ip1}; + my $wiz_ip_range2 = $o->{var}{ip2}; + my $wiz_ip_netmask = $wiz->{net}->itf_get("NETMASK"); + if (!$wiz_ip_netmask) { $wiz_ip_netmask = "255.255.255.0" } + my $wiz_device = $o->{var}{interface}; +# 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"); + standalone::explanations("now patching etc/sysconfig/dhcpd"); + if (!`grep INTERFACES $file`) { + 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|INTERFACE|) { + print NEW "# $_"; + } + print NEW $_; + } + MDK::Common::append_to_file($tmp, "\n# Added by drakwizard\nINTERFACES=$wiz_device"); + close(OLD); + close(NEW); + chomp($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__|$o->{var}{gateway}|g; + s|__tftpserverip__|$wiz_tftpserverip|g; + s|__dhcpd_interface__|$wiz_device|g; + $_; + } cat_("/usr/share/wizards//dhcp_wizard/scripts/dhcpd.conf.default")); + standalone::explanations("$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 $file) { + my %mdk = MDK::Wizard::Varspaceval->get($file); + $mdk{lease_file} = "/var/dhcpd/dhcpd.leases"; + $mdk{interfaces} = $wiz_device; + standalone::explanations("$file: lease_file = $mdk{lease_file}, interfaces = $mdk{interfaces}"); + MDK::Wizard::Varspaceval->commit($file, \%mdk); + !$o->{var}{wiz_authoritative} and output($file, map { + s|^\s*not\s*authoritative.*|#$&|i; + $_ + } cat_("/etc/dhcpd.conf")); + } + + if ($o->{var}{pxe} == '0') { + substInFile { + s/#\s+deny members of "PXE"/deny members of "PXE"/; + } "/etc/dhcpd.conf"; + } + + $o->{var}{gateway} or substInFile { + s/#\s+doption routers.*//; + } "/etc/dhcpd.conf"; + + if (services::is_service_running('dhcpd')) { + services::restart('dhcpd') + } else { + services::start('dhcpd') + } + 10; + check_started('dhcpd'); +} + +sub new { + my ($class) = @_; + bless $o, $class; +} + +1; |