/[pxelator]/lib/PXElator/dhcpd.pm
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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revision 160 by dpavlin, Thu Aug 6 18:09:17 2009 UTC revision 194 by dpavlin, Mon Aug 10 17:30:01 2009 UTC
# Line 18  use autodie; Line 18  use autodie;
18  use IO::Socket::INET;  use IO::Socket::INET;
19  use File::Slurp;  use File::Slurp;
20  use Data::Dump qw/dump/;  use Data::Dump qw/dump/;
 use Net::Ping;  
21    
22  use lib '..';  use lib '..';
23  use Net::DHCP::Packet;  use Net::DHCP::Packet;
# Line 35  if ( ! $server::ip ) { Line 34  if ( ! $server::ip ) {
34    
35  warn "server ip $server::ip range: $server::ip_from - $server::ip_to\n";  warn "server ip $server::ip range: $server::ip_from - $server::ip_to\n";
36    
37  my $addr = $server::ip_from;  use client;
38    
39  sub client_ip {  sub client_ip {
40          my ( $mac ) = @_;          my ( $mac ) = @_;
# Line 43  sub client_ip { Line 42  sub client_ip {
42          my $conf = $server::conf;          my $conf = $server::conf;
43          mkdir $conf unless -e $conf;          mkdir $conf unless -e $conf;
44    
45          if ( -e "$conf/mac/$mac" ) {          my $ip;
46                  my $ip = read_file "$conf/mac/$mac";  
47            if ( $ip = client::ip_from_mac( $mac ) ) {
48                  print "RENEW $mac $ip\n";                  print "RENEW $mac $ip\n";
49                  return $ip;                  return $ip;
50            } else {
51                    $ip = client::next_ip;
52                    print "NEW $mac $ip\n";
53                    symlink "$conf/ip/$ip", "$conf/mac/$mac";
54          }          }
55    
         my $p = Net::Ping->new;  
   
         my $prefix = $server::ip;  
         $prefix =~ s{\.\d+$}{.};  
         my $ip = $prefix . $addr;  
   
         while ( -e "$conf/ip/$ip" || $p->ping( $ip ) ) {  
                 $ip = $prefix . $addr++;  
                 die "all addresses allocated!" if $addr == $server::ip_to;  
         }  
   
         write_file "$conf/mac/$mac", $ip;  
   
56          my $ip_path = "$conf/ip/$ip";          my $ip_path = "$conf/ip/$ip";
57          mkdir $ip_path unless -e $ip_path;          mkdir $ip_path unless -e $ip_path;
58    
# Line 69  sub client_ip { Line 60  sub client_ip {
60                  warn "$mac IP changed from ", readlink "$ip_path/mac", " to $ip";                  warn "$mac IP changed from ", readlink "$ip_path/mac", " to $ip";
61                  unlink "$ip_path/mac";                  unlink "$ip_path/mac";
62          };          };
         symlink "$conf/mac/$mac", "$ip_path/mac";  
63    
64          print "$mac NEW $ip\n";          symlink "$conf/mac/$mac", "$ip_path/mac";
65    
66          return $ip;          return $ip;
67  }  }
# Line 145  sub process_packet { Line 135  sub process_packet {
135          };          };
136    
137          my @requested = split(/\s/, $dhcp->getOptionValue(DHO_DHCP_PARAMETER_REQUEST_LIST));          my @requested = split(/\s/, $dhcp->getOptionValue(DHO_DHCP_PARAMETER_REQUEST_LIST));
138          warn "options ",dump( $options ), ' requested: ',dump( @requested );          warn "options ",dump( $options ), ' requested: ',dump( @requested ) if $debug;
139    
140            my @missing;
141          foreach ( @requested ) {          foreach ( @requested ) {
142                  $packet->{$_} = $options->{$_} if defined $options->{$_};                  if ( defined $options->{$_} ) {
143                            $packet->{$_} = $options->{$_};
144                    } else {
145                            push @missing, $_;
146                    }
147          }          }
148    
149            warn "W: options requested but missing: ",dump( @missing ),$/;
150    
151          foreach my $opt ( 'magic', 'config_file', 'path_prefix', 'reboot_time' ) {          foreach my $opt ( 'magic', 'config_file', 'path_prefix', 'reboot_time' ) {
152                  my $DH0 = eval 'DHO_PXELINUX_' . uc $opt;                  my $DH0 = eval 'DHO_PXELINUX_' . uc $opt;
153                  warn "DH0: $@" if $@;                  warn "DH0: $@" if $@;
154                  my $v = eval "\$pxelinux::$opt";                  my $v = eval "\$pxelinux::$opt";
155                  warn "v: $@" if $@;                  warn "v: $@" if $@;
156                  next unless defined $v;                  next unless defined $v;
157                  warn "pxelinux dhcp option $opt = $DH0 = $v";                  warn "pxelinux dhcp option $opt = $DH0 = $v\n" if $debug;
158                  $packet->{ $DH0 } = $v;                  $packet->{ $DH0 } = $v;
159          }          }
160    
# Line 183  sub process_packet { Line 181  sub process_packet {
181                  log::mac $mac, "$messagetype igored (bootp?)";                  log::mac $mac, "$messagetype igored (bootp?)";
182          }          }
183    
         warn "packet ",dump( $packet );  
   
184          warn ">> $mac == $ip server: $server::ip", $file ? " file: $file\n" : "\n" if $debug;          warn ">> $mac == $ip server: $server::ip", $file ? " file: $file\n" : "\n" if $debug;
185    
186          $packet = new Net::DHCP::Packet( %$packet );          $packet = new Net::DHCP::Packet( %$packet );
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