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use File::Slurp; |
use File::Slurp; |
7 |
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8 |
use server; |
use server; |
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use ip; |
10 |
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11 |
sub ifconfig { |
sub ifconfig { |
12 |
my $dev = shift; |
my $dev = shift; |
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`/sbin/ifconfig $dev` |
`/sbin/ifconfig $dev` |
14 |
} |
} |
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16 |
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sub setup { |
17 |
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18 |
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if ( my $dev = $ENV{DEV} ) { |
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warn "W: running under device $dev, not configuring network\n"; |
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return; |
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} |
22 |
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23 |
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my $ifconfig = ifconfig('virtual'); |
24 |
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if ( $ifconfig !~ m{UP} ) { |
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system "brctl addbr virtual"; |
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system "brctl setfd virtual 0"; |
27 |
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system("/sbin/ifconfig virtual $server::ip netmask $server::netmask") == 0 || warn "W: $!"; |
28 |
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} else { |
29 |
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warn "using existing virtual configuration\n$ifconfig\n"; |
30 |
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} |
31 |
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if ( my $dev = ip::default_route_dev() ) { |
32 |
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system "sudo sysctl -w net.ipv4.ip_forward=1"; |
33 |
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my $network = ip::from_int( ip::to_int($server::ip) & ip::to_int($server::netmask) ); |
34 |
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warn "# network $network"; |
35 |
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system "sudo iptables -t nat -L POSTROUTING -n | grep $network || sudo iptables -t nat -A POSTROUTING -s $server::ip/$server::netmask -o wlan0 -j MASQUERADE"; |
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warn "masquarade to $dev"; |
37 |
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} |
38 |
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} |
39 |
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40 |
sub tap { |
sub tap { |
41 |
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42 |
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if ( my $dev = $ENV{DEV} ) { |
43 |
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warn "W: running under device $dev, not configuring tap0\n"; |
44 |
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return; |
45 |
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} |
46 |
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47 |
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if ( $server::ip !~ m{^172} ) { |
48 |
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warn "W: server ip mismetch, not configuring tap0\n"; |
49 |
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return; |
50 |
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} |
51 |
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|
52 |
my $interfaces = read_file '/etc/network/interfaces'; |
my $interfaces = read_file '/etc/network/interfaces'; |
53 |
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|
54 |
if ( $interfaces !~ m{tap0}s ) { |
if ( $interfaces !~ m{tap0}s ) { |
55 |
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|
56 |
system "sudo apt-get install vde2"; |
system "sudo apt-get install -y vde2"; |
57 |
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|
58 |
write_file '/tmp/interfaces', qq{ |
write_file '/tmp/interfaces', qq{ |
59 |
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|
62 |
address $server::ip |
address $server::ip |
63 |
netmask $server::netmask |
netmask $server::netmask |
64 |
vde2-switch - |
vde2-switch - |
65 |
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# setup NAT for vde network |
66 |
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post-up sysctl -w net.ipv4.ip_forward=1 |
67 |
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post-up iptables -t nat -A POSTROUTING -s $server::ip/$server::netmask -o wlan0 -j MASQUERADE |
68 |
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|
69 |
}; |
}; |
70 |
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