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1 | package PVE::Firewall; | |
2 | ||
3 | use warnings; | |
4 | use strict; | |
5 | use Data::Dumper; | |
6 | use PVE::Tools; | |
7 | use PVE::QemuServer; | |
8 | ||
9 | # we need complete VM configuration of all VMs (openvz/qemu) | |
10 | # in vmdata | |
11 | ||
12 | sub compile { | |
13 | my ($targetdir, $vmdata) = @_; | |
14 | ||
15 | my $netinfo; | |
16 | ||
17 | my $zoneinfo = { | |
18 | fw => { type => 'firewall' }, | |
19 | }; | |
20 | ||
21 | my $register_bridge; | |
22 | ||
23 | $register_bridge = sub { | |
24 | my ($bridge, $vlan) = @_; | |
25 | ||
26 | my $zone = 'z' . $bridge; | |
27 | ||
28 | return $zone if $zoneinfo->{$zone}; | |
29 | ||
30 | $zoneinfo->{$zone} = { | |
31 | type => 'bridge', | |
32 | bridge => $bridge, | |
33 | }; | |
34 | ||
35 | return &$register_bridge("${bridge}v${vlan}") if defined($vlan); | |
36 | ||
37 | return $zone; | |
38 | }; | |
39 | ||
40 | my $register_bridge_port = sub { | |
41 | my ($bridge, $vlan, $vmzone, $tap) = @_; | |
42 | ||
43 | my $bridge_zone = &$register_bridge($bridge, $vlan); | |
44 | my $zone = $bridge_zone . $vmzone; | |
45 | ||
46 | if (!$zoneinfo->{$zone}) { | |
47 | $zoneinfo->{$zone} = { | |
48 | type => 'bport', | |
49 | bridge_zone => $bridge_zone, | |
50 | ifaces => {}, | |
51 | }; | |
52 | } | |
53 | ||
54 | $zoneinfo->{$zone}->{ifaces}->{$tap} = 1; | |
55 | ||
56 | return $zone; | |
57 | }; | |
58 | ||
59 | foreach my $vmid (keys %{$vmdata->{qemu}}) { | |
60 | $netinfo->{$vmid} = {}; | |
61 | my $conf = $vmdata->{qemu}->{$vmid}; | |
62 | foreach my $opt (keys %$conf) { | |
63 | next if $opt !~ m/^net(\d+)$/; | |
64 | my $netid = $1; | |
65 | my $net = PVE::QemuServer::parse_net($conf->{$opt}); | |
66 | next if !$net; | |
67 | die "implement me" if !$net->{bridge}; | |
68 | ||
69 | my $vmzone = $conf->{zone} || "vm$vmid"; | |
70 | $net->{zone} = &$register_bridge_port($net->{bridge}, $net->{tag}, $vmzone, "tap${vmid}i${netid}"); | |
71 | $netinfo->{$vmid}->{$netid} = $net; | |
72 | } | |
73 | } | |
74 | ||
75 | #print Dumper($netinfo); | |
76 | ||
77 | # NOTE: zone names have length limit, so we need to | |
78 | # translate them into shorter names | |
79 | ||
80 | my $zoneid = 0; | |
81 | my $zonemap = { fw => 'fw' }; | |
82 | ||
83 | my $lookup_zonename = sub { | |
84 | my ($zone) = @_; | |
85 | ||
86 | return $zonemap->{$zone} if defined($zonemap->{$zone}); | |
87 | $zonemap->{$zone} = 'z' . $zoneid++; | |
88 | ||
89 | return $zonemap->{$zone}; | |
90 | }; | |
91 | ||
92 | # dump zone file | |
93 | ||
94 | my $out; | |
95 | ||
96 | my $format = "%-15s %-10s %s\n"; | |
97 | $out = sprintf($format, '#ZONE', 'TYPE', 'OPTIONS'); | |
98 | ||
99 | foreach my $z (sort keys %$zoneinfo) { | |
100 | my $zid = &$lookup_zonename($z); | |
101 | if ($zoneinfo->{$z}->{type} eq 'firewall') { | |
102 | $out .= sprintf($format, $zid, $zoneinfo->{$z}->{type}, ''); | |
103 | } elsif ($zoneinfo->{$z}->{type} eq 'bridge') { | |
104 | $out .= sprintf($format, &$lookup_zonename($z), 'ipv4', ''); | |
105 | } elsif ($zoneinfo->{$z}->{type} eq 'bport') { | |
106 | my $bridge_zone = $zoneinfo->{$z}->{bridge_zone} || die "internal error"; | |
107 | my $bzid = &$lookup_zonename($bridge_zone); | |
108 | $out .= sprintf($format, "$zid:$bzid", 'bport', ''); | |
109 | } else { | |
110 | die "internal error"; | |
111 | } | |
112 | } | |
113 | ||
114 | $out .= sprintf("#LAST LINE - ADD YOUR ENTRIES ABOVE THIS ONE - DO NOT REMOVE\n"); | |
115 | ||
116 | PVE::Tools::file_set_contents("$targetdir/zones", $out); | |
117 | ||
118 | # dump interfaces | |
119 | ||
120 | $format = "%-15s %-20s %-10s %s\n"; | |
121 | $out = sprintf($format, '#ZONE', 'INTERFACE', 'BROADCAST', 'OPTIONS'); | |
122 | ||
123 | foreach my $z (sort keys %$zoneinfo) { | |
124 | my $zid = &$lookup_zonename($z); | |
125 | if ($zoneinfo->{$z}->{type} eq 'firewall') { | |
126 | # do nothing; | |
127 | } elsif ($zoneinfo->{$z}->{type} eq 'bridge') { | |
128 | my $bridge = $zoneinfo->{$z}->{bridge} || die "internal error"; | |
129 | $out .= sprintf($format, $zid, $bridge, 'detect', 'bridge'); | |
130 | ||
131 | } elsif ($zoneinfo->{$z}->{type} eq 'bport') { | |
132 | my $ifaces = $zoneinfo->{$z}->{ifaces}; | |
133 | foreach my $iface (sort keys %$ifaces) { | |
134 | my $bridge_zone = $zoneinfo->{$z}->{bridge_zone} || die "internal error"; | |
135 | my $bridge = $zoneinfo->{$bridge_zone}->{bridge} || die "internal error"; | |
136 | my $iftxt = "$bridge:$iface"; | |
137 | $out .= sprintf($format, $zid, $iftxt, '', ''); | |
138 | } | |
139 | } else { | |
140 | die "internal error"; | |
141 | } | |
142 | } | |
143 | ||
144 | $out .= sprintf("#LAST LINE - ADD YOUR ENTRIES ABOVE THIS ONE - DO NOT REMOVE\n"); | |
145 | ||
146 | PVE::Tools::file_set_contents("$targetdir/interfaces", $out); | |
147 | ||
148 | # dump policy | |
149 | ||
150 | $format = "%-15s %-15s %-15s %s\n"; | |
151 | $out = sprintf($format, '#SOURCE', 'DEST', 'POLICY', 'LOG'); | |
152 | $out .= sprintf($format, 'all', 'all', 'REJECT', 'info'); | |
153 | ||
154 | PVE::Tools::file_set_contents("$targetdir/policy", $out); | |
155 | ||
156 | ||
157 | } | |
158 | ||
159 | ||
160 | sub activate { | |
161 | ||
162 | } | |
163 | ||
164 | ||
165 | 1; |