17 if ( my $dev = $ENV{DEV} ) {
18 warn "W: running under device $dev, not configuring network\n";
22 my $ifconfig = ifconfig('virtual');
23 if ( $ifconfig !~ m{UP} ) {
24 system "brctl addbr virtual";
25 system "brctl setfd virtual 0";
26 system("/sbin/ifconfig virtual $server::ip netmask $server::netmask") == 0 || warn "W: $!";
28 warn "OK $ifconfig\n";
34 if ( my $dev = $ENV{DEV} ) {
35 warn "W: running under device $dev, not configuring tap0\n";
39 if ( $server::ip !~ m{^172} ) {
40 warn "W: server ip mismetch, not configuring tap0\n";
44 my $interfaces = read_file '/etc/network/interfaces';
46 if ( $interfaces !~ m{tap0}s ) {
48 system "sudo apt-get install -y vde2";
50 write_file '/tmp/interfaces', qq{
53 iface tap0 inet static
55 netmask $server::netmask
57 # setup NAT for vde network
58 post-up sysctl -w net.ipv4.ip_forward=1
59 post-up iptables -t nat -A POSTROUTING -s $server::ip/$server::netmask -o wlan0 -j MASQUERADE
63 system q|sudo sh -c 'cat /tmp/interfaces >> /etc/network/interfaces'|;
64 system q|sudo sh -c 'usermod -G vde2-net -a $SUDO_USER'|;
68 my $ifconfig = ifconfig('tap0');
69 if ( $ifconfig =~ m{UP} ) {
70 $ifconfig =~ m{$server::ip}s && return 'up';
71 system("sudo /sbin/ifconfig tap0 $server::ip netmask $server::netmask") == 0 && return "ip changed $server::ip";
72 die "can't change IP address of tap0 to $server::ip";
74 die "bring interface up with: sudo ifup tap0\n";