src/lxcnetaddbr

   1 #!/usr/bin/perl
   2
   3 use strict;
   4 use warnings;
   5
   6 exit 0 if $ENV{LXC_NAME} && $ENV{LXC_NAME} !~ /^\d+$/;
   7
   8 use PVE::LXC;
   9 use PVE::Tools qw(run_command);
  10 use PVE::Network;
  11 use PVE::ProcFSTools;
  12 my $have_sdn;
  13 eval {
  14     require PVE::Network::SDN::Zones;
  15     $have_sdn = 1;
  16 };
  17
  18 die "got unexpected argument count\n" if scalar(@ARGV) != 5;
  19
  20 my ($vmid, $arg2, $arg3, $type, $iface) = @ARGV;
  21
  22 die "got unexpected argument ($arg2 != net)\n" if $arg2 ne 'net';
  23 die "got unexpected argument ($arg3 != up)\n" if $arg3 ne 'up';
  24
  25 die "got unexpected argument ($type != veth)\n" if $type ne 'veth';
  26
  27 die "got unexpected environment" if $vmid ne $ENV{LXC_NAME};
  28
  29 die "missing vmid parameter\n" if !$vmid;
  30 die "missing iface parameter\n" if !$iface;
  31
  32 my $conf = PVE::LXC::Config->load_config($vmid);
  33
  34 my $netconf;
  35 if ($iface =~ m/^veth(\d+)i(\d+)$/) {
  36     die "got unexpected interface name '$iface'\n" if $1 ne $vmid;
  37     $netconf = $conf->{"net$2"};
  38 }
  39
  40 die "unable to find network definition for interface '$iface'\n"
  41     if !defined($netconf);
  42
  43 my $net = PVE::LXC::Config->parse_lxc_network($netconf);
  44
  45 my $tag = $net->{tag};
  46 my $firewall = $net->{firewall};
  47 my $bridge = $net->{bridge};
  48 my $trunks = $net->{trunks};
  49 my $rate = $net->{rate};
  50
  51 die "missing bridge configuration" if !$bridge;
  52
  53 if (-d "/sys/class/net/$iface") {
  54
  55     if($have_sdn) {
  56        ($bridge, undef) = PVE::Network::SDN::Zones::get_bridge_vlan($bridge);
  57     }
  58
  59     my $bridgemtu = PVE::Tools::file_read_firstline("/sys/class/net/$bridge/mtu");
  60     die "bridge '$bridge' does not exist\n" if !$bridgemtu;
  61     #avoid insecure dependency;
  62     ($bridgemtu) = $bridgemtu =~ /(\d+)/;
  63
  64     PVE::Tools::run_command("/sbin/ip link set dev $iface up mtu $bridgemtu");
  65     PVE::Tools::run_command("/sbin/ip addr add 0.0.0.0/0 dev $iface");
  66
  67     if($have_sdn) {
  68         PVE::Network::SDN::Zones::tap_plug($iface, $net->{bridge}, $tag, $firewall, $trunks, $rate);
  69     } else {
  70         PVE::Network::tap_plug($iface, $bridge, $tag, $firewall, $trunks, $rate);
  71     }
  72 }
  73
  74 exit 0;