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git.proxmox.com Git - pve-firewall.git/blob - PVE/Firewall.pm
8be0c33005de8a6ac28d4f6f9c4f5facdbd9f9f6
10 sub get_shorewall_macros
{
12 return $macros if $macros;
14 foreach my $path (</usr/share
/shorewall/macro
.*>) {
15 if ($path =~ m
|/macro\
.(\S
+)$|) {
23 my $rule_format = "%-15s %-30s %-30s %-15s %-15s %-15s\n";
25 my $generate_input_rule = sub {
26 my ($zoneinfo, $rule, $net, $netid) = @_;
28 my $zone = $net->{zone
} || die "internal error";
29 my $zid = $zoneinfo->{$zone}->{zoneref
} || die "internal error";
30 my $tap = $net->{tap
} || die "internal error";
32 my $dest = "$zid:$tap";
35 $dest .= ":$rule->{dest}";
38 my $action = $rule->{service
} ?
39 "$rule->{service}($rule->{action})" : $rule->{action
};
43 if ($zoneinfo->{$zone}->{type
} eq 'bport') {
44 my $bridge_zone = $zoneinfo->{$zone}->{bridge_zone
} || die "internal error";
45 my $bridge_ext_zone = $zoneinfo->{$bridge_zone}->{bridge_ext_zone
} || die "internal error";
46 my $zoneref = $zoneinfo->{$bridge_ext_zone}->{zoneref
} || die "internal error";
47 if (!$rule->{source
}) {
48 $source = "${zoneref}";
50 $source = "${zoneref}:$rule->{source}";
53 $source = "any:$rule->{source}";
56 return sprintf($rule_format, $action, $source, $dest, $rule->{proto
} || '-',
57 $rule->{dport
} || '-', $rule->{sport
} || '-');
60 my $generate_output_rule = sub {
61 my ($zoneinfo, $rule, $net, $netid) = @_;
63 my $zone = $net->{zone
} || die "internal error";
64 my $zid = $zoneinfo->{$zone}->{zoneref
} || die "internal error";
65 my $tap = $net->{tap
} || die "internal error";
67 my $action = $rule->{service
} ?
68 "$rule->{service}($rule->{action})" : $rule->{action
};
75 $dest = "any:$rule->{dest}";
78 return sprintf($rule_format, $action, "$zid:$tap", $dest,
79 $rule->{proto
} || '-', $rule->{dport
} || '-', $rule->{sport
} || '-');
82 # we need complete VM configuration of all VMs (openvz/qemu)
86 my ($targetdir, $vmdata, $rules) = @_;
88 # remove existing data ?
89 foreach my $file (qw(params zones rules interfaces maclist policy)) {
90 unlink "$targetdir/$file";
96 fw
=> { type
=> 'firewall' },
103 $register_bridge = sub {
104 my ($bridge, $vlan) = @_;
106 my $zone = 'z' . $bridge;
108 return $zone if $zoneinfo->{$zone};
110 my $ext_zone = "z${bridge}ext";
112 $zoneinfo->{$zone} = {
115 bridge_ext_zone
=> $ext_zone,
118 # physical input devices
119 my $dir = "/sys/class/net/$bridge/brif";
121 PVE
::Tools
::dir_glob_foreach
($dir, '((eth|bond).+)', sub {
123 $physical->{$slave} = 1;
126 $zoneinfo->{$ext_zone} = {
128 bridge_zone
=> $zone,
132 return &$register_bridge("${bridge}v${vlan}") if defined($vlan);
137 my $register_bridge_port = sub {
138 my ($bridge, $vlan, $vmzone, $tap) = @_;
140 my $bridge_zone = &$register_bridge($bridge, $vlan);
141 my $zone = $bridge_zone . $vmzone;
143 if (!$zoneinfo->{$zone}) {
144 $zoneinfo->{$zone} = {
146 bridge_zone
=> $bridge_zone,
151 $zoneinfo->{$zone}->{ifaces
}->{$tap} = 1;
156 foreach my $vmid (keys %{$vmdata->{qemu
}}) {
157 $netinfo->{$vmid} = {};
158 my $conf = $vmdata->{qemu
}->{$vmid};
159 foreach my $opt (keys %$conf) {
160 next if $opt !~ m/^net(\d+)$/;
162 my $net = PVE
::QemuServer
::parse_net
($conf->{$opt});
164 die "implement me" if !$net->{bridge
};
166 my $vmzone = $conf->{zone
} || "vm$vmid";
167 $net->{tap
} = "tap${vmid}i${netnum}";
168 $maclist->{$net->{tap
}} = $net->{macaddr
} || die "internal error";
169 $net->{zone
} = &$register_bridge_port($net->{bridge
}, $net->{tag
}, $vmzone, $net->{tap
});
170 $netinfo->{$vmid}->{$opt} = $net;
174 #print Dumper($netinfo);
176 # NOTE: zone names have length limit, so we need to
177 # translate them into shorter names
180 my $zonemap = { fw
=> 'fw' };
182 my $lookup_zonename = sub {
185 return $zonemap->{$zone} if defined($zonemap->{$zone});
186 $zonemap->{$zone} = 'z' . $zoneid++;
188 return $zonemap->{$zone};
191 foreach my $z (sort keys %$zoneinfo) {
192 $zoneinfo->{$z}->{id
} = &$lookup_zonename($z);
193 $zoneinfo->{$z}->{zonevar
} = uc($z);
194 $zoneinfo->{$z}->{zoneref
} = '$' . $zoneinfo->{$z}->{zonevar
};
200 $out = "# PVE zones\n";
201 foreach my $z (sort keys %$zoneinfo) {
202 $out .= "$zoneinfo->{$z}->{zonevar}=$zoneinfo->{$z}->{id}\n";
204 PVE
::Tools
::file_set_contents
("$targetdir/params", $out);
208 my $format = "%-30s %-10s %-15s\n";
209 $out = sprintf($format, '#ZONE', 'TYPE', 'OPTIONS');
211 foreach my $z (sort keys %$zoneinfo) {
212 my $zid = $zoneinfo->{$z}->{zoneref
};
213 if ($zoneinfo->{$z}->{type
} eq 'firewall') {
214 $out .= sprintf($format, $zid, $zoneinfo->{$z}->{type
}, '');
215 } elsif ($zoneinfo->{$z}->{type
} eq 'bridge') {
216 $out .= sprintf($format, $zid, 'ipv4', '');
217 } elsif ($zoneinfo->{$z}->{type
} eq 'bport') {
218 my $bridge_zone = $zoneinfo->{$z}->{bridge_zone
} || die "internal error";
219 my $bzid = $zoneinfo->{$bridge_zone}->{zoneref
} || die "internal error";
220 $out .= sprintf($format, "$zid:$bzid", 'bport', '');
222 die "internal error";
226 $out .= sprintf("#LAST LINE - ADD YOUR ENTRIES ABOVE THIS ONE - DO NOT REMOVE\n");
228 PVE
::Tools
::file_set_contents
("$targetdir/zones", $out);
232 $format = "%-25s %-20s %-10s %-15s\n";
233 $out = sprintf($format, '#ZONE', 'INTERFACE', 'BROADCAST', 'OPTIONS');
235 my $maclist_format = "%-15s %-15s %-15s\n";
236 my $macs = sprintf($maclist_format, '#DISPOSITION', 'INTERFACE', 'MACZONE');
238 foreach my $z (sort keys %$zoneinfo) {
239 my $zid = $zoneinfo->{$z}->{zoneref
};
240 if ($zoneinfo->{$z}->{type
} eq 'firewall') {
242 } elsif ($zoneinfo->{$z}->{type
} eq 'bridge') {
243 my $bridge = $zoneinfo->{$z}->{bridge
} || die "internal error";
244 $out .= sprintf($format, $zid, $bridge, 'detect', 'bridge,optional');
245 } elsif ($zoneinfo->{$z}->{type
} eq 'bport') {
246 my $ifaces = $zoneinfo->{$z}->{ifaces
};
247 foreach my $iface (sort keys %$ifaces) {
248 my $bridge_zone = $zoneinfo->{$z}->{bridge_zone
} || die "internal error";
249 my $bridge = $zoneinfo->{$bridge_zone}->{bridge
} || die "internal error";
250 my $iftxt = "$bridge:$iface";
252 if ($maclist->{$iface}) {
253 $out .= sprintf($format, $zid, $iftxt, '-', 'maclist');
254 $macs .= sprintf($maclist_format, 'ACCEPT', $iface, $maclist->{$iface});
256 $out .= sprintf($format, $zid, $iftxt, '-', '');
260 die "internal error";
264 $out .= sprintf("#LAST LINE - ADD YOUR ENTRIES ABOVE THIS ONE - DO NOT REMOVE\n");
266 PVE
::Tools
::file_set_contents
("$targetdir/interfaces", $out);
269 PVE
::Tools
::file_set_contents
("$targetdir/maclist", $macs);
273 $format = "%-15s %-15s %-15s %s\n";
274 $out = sprintf($format, '#SOURCE', 'DEST', 'POLICY', 'LOG');
275 $out .= sprintf($format, 'fw', 'all', 'ACCEPT', '');
277 # we need to disable intra-zone traffic on bridges. Else traffic
278 # from untracked interfaces simply pass the firewall
279 foreach my $z (sort keys %$zoneinfo) {
280 my $zid = $zoneinfo->{$z}->{zoneref
};
281 if ($zoneinfo->{$z}->{type
} eq 'bridge') {
282 $out .= sprintf($format, $zid, $zid, 'REJECT', 'info');
285 $out .= sprintf($format, 'all', 'all', 'REJECT', 'info');
287 PVE
::Tools
::file_set_contents
("$targetdir/policy", $out);
292 $out = sprintf($rule_format, '#ACTION', 'SOURCE', 'DEST', 'PROTO', 'DPORT', 'SPORT');
293 foreach my $vmid (sort keys %$rules) {
294 my $inrules = $rules->{$vmid}->{in};
295 my $outrules = $rules->{$vmid}->{out
};
297 if (scalar(@$inrules)) {
298 $out .= "# IN to VM $vmid\n";
299 foreach my $rule (@$inrules) {
300 foreach my $netid (keys %{$netinfo->{$vmid}}) {
301 my $net = $netinfo->{$vmid}->{$netid};
302 next if !($rule->{iface
} eq 'any' || $rule->{iface
} eq $netid);
303 $out .= &$generate_input_rule($zoneinfo, $rule, $net, $netid);
308 if (scalar(@$outrules)) {
309 $out .= "# OUT from VM $vmid\n";
310 foreach my $rule (@$outrules) {
311 foreach my $netid (keys %{$netinfo->{$vmid}}) {
312 my $net = $netinfo->{$vmid}->{$netid};
313 next if !($rule->{iface
} eq 'any' || $rule->{iface
} eq $netid);
314 $out .= &$generate_output_rule($zoneinfo, $rule, $net, $netid);
320 PVE
::Tools
::file_set_contents
("$targetdir/rules", $out);