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 {

        if ( $server::ip !~ m{^172} ) {
                warn "W: not configuring tap0 interface!";
                return;
        }

        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	dpavlin	82	package network;
2
3			use warnings;
4			use strict;
5
6			use File::Slurp;
7
8			use server;
9
10	dpavlin	83	sub ifconfig {
11			my $dev = shift;
12			`/sbin/ifconfig $dev`
13			}
14
15	dpavlin	82	sub tap {
16
17	dpavlin	175	if ( $server::ip !~ m{^172} ) {
18			warn "W: not configuring tap0 interface!";
19			return;
20			}
21
22	dpavlin	82	my $interfaces = read_file '/etc/network/interfaces';
23
24	dpavlin	130	if ( $interfaces !~ m{tap0}s ) {
25	dpavlin	82
26			system "sudo apt-get install vde2";
27
28	dpavlin	99	write_file '/tmp/interfaces', qq{
29	dpavlin	82
30	dpavlin	99	# added by PXElator
31			iface tap0 inet static
32			address $server::ip
33			netmask $server::netmask
34			vde2-switch -
35	dpavlin	144	# setup NAT for vde network
36			post-up sysctl -w net.ipv4.ip_forward=1
37			post-up iptables -t nat -A POSTROUTING -s $server::ip/$server::netmask -o wlan0 -j MASQUERADE
38	dpavlin	82
39			};
40
41	dpavlin	99	system q\|sudo sh -c 'cat /tmp/interfaces >> /etc/network/interfaces'\|;
42			system q\|sudo sh -c 'usermod -G vde2-net -a $SUDO_USER'\|;
43	dpavlin	82
44			}
45
46	dpavlin	84	my $ifconfig = ifconfig('tap0');
47			if ( $ifconfig =~ m{UP} ) {
48			$ifconfig =~ m{$server::ip}s && return 'up';
49			system("sudo /sbin/ifconfig tap0 $server::ip netmask $server::netmask") == 0 && return "ip changed $server::ip";
50			die "can't change IP address of tap0 to $server::ip";
51	dpavlin	140	} else {
52			die "bring interface up with: sudo ifup tap0\n";
53	dpavlin	84	}
54	dpavlin	82	}
55
56			1;