lib/PXElator/network.pm

package network;

use warnings;
use strict;

use File::Slurp;

use server;

sub ifconfig {
        my $dev = shift;
        `/sbin/ifconfig $dev`
}

sub tap {

        my $interfaces = read_file '/etc/network/interfaces';

        if ( $interfaces !~ m{tap0}s ) {

                system "sudo apt-get install vde2";

                write_file '/tmp/interfaces', qq{

# added by PXElator
iface tap0 inet static
        address $server::ip
        netmask $server::netmask
        vde2-switch -
        # setup NAT for vde network
        post-up sysctl -w net.ipv4.ip_forward=1
        post-up iptables -t nat -A POSTROUTING -s $server::ip/$server::netmask -o wlan0 -j MASQUERADE

                };

                system q|sudo sh -c 'cat /tmp/interfaces >> /etc/network/interfaces'|;
                system q|sudo sh -c 'usermod -G vde2-net -a $SUDO_USER'|;

        }

        my $ifconfig = ifconfig('tap0');
        if ( $ifconfig =~ m{UP} ) {
                 $ifconfig =~ m{$server::ip}s && return 'up';
                system("sudo /sbin/ifconfig tap0 $server::ip netmask $server::netmask") == 0 && return "ip changed $server::ip";
                die "can't change IP address of tap0 to $server::ip";
        } else {
                die "bring interface up with: sudo ifup tap0\n";
        }
}

1;
1	package network;
2
3	use warnings;
4	use strict;
5
6	use File::Slurp;
7
8	use server;
9
10	sub ifconfig {
11	my $dev = shift;
12	`/sbin/ifconfig $dev`
13	}
14
15	sub tap {
16
17	my $interfaces = read_file '/etc/network/interfaces';
18
19	if ( $interfaces !~ m{tap0}s ) {
20
21	system "sudo apt-get install vde2";
22
23	write_file '/tmp/interfaces', qq{
24
25	# added by PXElator
26	iface tap0 inet static
27	address $server::ip
28	netmask $server::netmask
29	vde2-switch -
30	# setup NAT for vde network
31	post-up sysctl -w net.ipv4.ip_forward=1
32	post-up iptables -t nat -A POSTROUTING -s $server::ip/$server::netmask -o wlan0 -j MASQUERADE
33
34	};
35
36	system q\|sudo sh -c 'cat /tmp/interfaces >> /etc/network/interfaces'\|;
37	system q\|sudo sh -c 'usermod -G vde2-net -a $SUDO_USER'\|;
38
39	}
40
41	my $ifconfig = ifconfig('tap0');
42	if ( $ifconfig =~ m{UP} ) {
43	$ifconfig =~ m{$server::ip}s && return 'up';
44	system("sudo /sbin/ifconfig tap0 $server::ip netmask $server::netmask") == 0 && return "ip changed $server::ip";
45	die "can't change IP address of tap0 to $server::ip";
46	} else {
47	die "bring interface up with: sudo ifup tap0\n";
48	}
49	}
50
51	1;