test/generateconfig.pl

   1 use strict;
   2 use warnings;
   3 use File::Copy;
   4 use PVE::Cluster qw(cfs_read_file);
   5
   6 use PVE::Network::Vnet;
   7 use PVE::Network::Plugin;
   8 use PVE::Network::VlanPlugin;
   9 use PVE::Network::VxlanMulticastPlugin;
  10
  11 PVE::Network::VlanPlugin->register();
  12 PVE::Network::VxlanMulticastPlugin->register();
  13 PVE::Network::Plugin->init();
  14
  15
  16 my $rawconfig = generate_network_config();
  17 print $rawconfig;
  18 verify_merged_config($rawconfig);
  19 write_final_config($rawconfig);
  20
  21 sub generate_network_config {
  22
  23      #only support ifupdown2
  24     die "you need ifupdown2 to reload networking\n" if !-e '/usr/share/ifupdown2';
  25
  26      #read main config for physical interfaces
  27      my $current_config_file = "/etc/network/interfaces";
  28      my $fh = IO::File->new($current_config_file);
  29      my $interfaces_config = PVE::INotify::read_etc_network_interfaces(1,$fh);
  30      $fh->close();
  31
  32      #check uplinks
  33      my $uplinks = {};
  34      foreach my $id (keys %{$interfaces_config->{ifaces}}) {
  35         my $interface = $interfaces_config->{ifaces}->{$id};
  36         if (my $uplink = $interface->{'uplink-id'}) {
  37                 die "uplink-id $uplink is already defined on $uplinks->{$uplink}" if $uplinks->{$uplink};
  38                 $uplinks->{$interface->{'uplink-id'}} = $id;
  39         }
  40      }
  41
  42       my $vnet_cfg = PVE::Cluster::cfs_read_file('network/vnet.cfg');
  43       my $transport_cfg = PVE::Cluster::cfs_read_file('network/transports.cfg');
  44
  45        #generate configuration
  46        my $rawconfig = "";
  47        foreach my $id (keys %{$vnet_cfg->{ids}}) {
  48              my $vnet = $vnet_cfg->{ids}->{$id};
  49              my $zone = $vnet->{transportzone};
  50
  51              my $plugin_config = $transport_cfg->{ids}->{$zone};
  52              die "zone $zone don't exist" if !defined($plugin_config);
  53              my $plugin = PVE::Network::Plugin->lookup($plugin_config->{type});
  54              $rawconfig .= $plugin->generate_network_config($plugin_config, $zone, $id, $vnet, $uplinks);
  55         }
  56
  57 return $rawconfig;
  58 }
  59
  60 #implement reload (split and reuse code from API2/Network.pm for bridge delete verification)
  61
  62 sub verify_merged_config {
  63     my ($rawconfig) = @_;
  64
  65         #merge main network intefaces and vnet file for possible conflict verification
  66         my $tmp_merged_network_interfaces = "/var/tmp/pve-merged_network_interfaces";
  67         copy("/etc/network/interfaces", $tmp_merged_network_interfaces);
  68
  69         my $writefh = IO::File->new($tmp_merged_network_interfaces, '>>');
  70         print $writefh $rawconfig;
  71         $writefh->close();
  72
  73         my $readfh = IO::File->new($tmp_merged_network_interfaces);
  74         my $merged_interfaces_config = PVE::INotify::read_etc_network_interfaces(1,$readfh);
  75         $readfh->close();
  76         unlink $tmp_merged_network_interfaces;
  77         PVE::INotify::__write_etc_network_interfaces($merged_interfaces_config, 1);
  78
  79 }
  80
  81 sub write_final_config {
  82     my ($rawconfig) = @_;
  83         #now write final separate filename
  84         my $tmp_file = "/var/tmp/pve-vnet.cfg";
  85
  86         my $vnet_interfaces_file = "/etc/network/interfaces.d/vnet";
  87
  88         my $writefh = IO::File->new($vnet_interfaces_file,">");
  89         print $writefh $rawconfig;
  90         $writefh->close();
  91 }
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