13 sub get_shorewall_macros
{
15 return $macros if $macros;
17 foreach my $path (</usr/share
/shorewall/macro
.*>) {
18 if ($path =~ m
|/macro\
.(\S
+)$|) {
26 my $rule_format = "%-15s %-30s %-30s %-15s %-15s %-15s\n";
28 my $generate_input_rule = sub {
29 my ($zoneinfo, $rule, $net, $netid) = @_;
31 my $zone = $net->{zone
} || die "internal error";
32 my $zid = $zoneinfo->{$zone}->{zoneref
} || die "internal error";
33 my $tap = $net->{tap
} || die "internal error";
35 my $dest = "$zid:$tap";
38 $dest .= ":$rule->{dest}";
41 my $action = $rule->{service
} ?
42 "$rule->{service}($rule->{action})" : $rule->{action
};
46 if ($zoneinfo->{$zone}->{type
} eq 'bport') {
47 my $bridge_zone = $zoneinfo->{$zone}->{bridge_zone
} || die "internal error";
48 my $bridge_ext_zone = $zoneinfo->{$bridge_zone}->{bridge_ext_zone
} || die "internal error";
49 my $zoneref = $zoneinfo->{$bridge_ext_zone}->{zoneref
} || die "internal error";
50 if (!$rule->{source
}) {
51 $source = "${zoneref}";
53 $source = "${zoneref}:$rule->{source}";
56 $source = "all:$rule->{source}";
59 return sprintf($rule_format, $action, $source, $dest, $rule->{proto
} || '-',
60 $rule->{dport
} || '-', $rule->{sport
} || '-');
63 my $generate_output_rule = sub {
64 my ($zoneinfo, $rule, $net, $netid) = @_;
66 my $zone = $net->{zone
} || die "internal error";
67 my $zid = $zoneinfo->{$zone}->{zoneref
} || die "internal error";
68 my $tap = $net->{tap
} || die "internal error";
70 my $action = $rule->{service
} ?
71 "$rule->{service}($rule->{action})" : $rule->{action
};
78 $dest = "all:$rule->{dest}";
81 return sprintf($rule_format, $action, "$zid:$tap", $dest,
82 $rule->{proto
} || '-', $rule->{dport
} || '-', $rule->{sport
} || '-');
85 # we need complete VM configuration of all VMs (openvz/qemu)
88 my $compile_shorewall = sub {
89 my ($targetdir, $vmdata, $rules) = @_;
91 # remove existing data ?
92 foreach my $file (qw(params zones rules interfaces maclist policy)) {
93 unlink "$targetdir/$file";
99 fw
=> { type
=> 'firewall' },
106 $register_bridge = sub {
107 my ($bridge, $vlan) = @_;
109 my $zone = 'z' . $bridge;
111 return $zone if $zoneinfo->{$zone};
113 my $ext_zone = "z${bridge}ext";
115 $zoneinfo->{$zone} = {
118 bridge_ext_zone
=> $ext_zone,
121 # physical input devices
122 my $dir = "/sys/class/net/$bridge/brif";
124 PVE
::Tools
::dir_glob_foreach
($dir, '((eth|bond).+)', sub {
126 $physical->{$slave} = 1;
129 $zoneinfo->{$ext_zone} = {
131 bridge_zone
=> $zone,
135 return &$register_bridge("${bridge}v${vlan}") if defined($vlan);
140 my $register_bridge_port = sub {
141 my ($bridge, $vlan, $vmzone, $tap) = @_;
143 my $bridge_zone = &$register_bridge($bridge, $vlan);
144 my $zone = $bridge_zone . $vmzone;
146 if (!$zoneinfo->{$zone}) {
147 $zoneinfo->{$zone} = {
149 bridge_zone
=> $bridge_zone,
154 $zoneinfo->{$zone}->{ifaces
}->{$tap} = 1;
159 foreach my $vmid (keys %{$vmdata->{qemu
}}) {
160 $netinfo->{$vmid} = {};
161 my $conf = $vmdata->{qemu
}->{$vmid};
162 foreach my $opt (keys %$conf) {
163 next if $opt !~ m/^net(\d+)$/;
165 my $net = PVE
::QemuServer
::parse_net
($conf->{$opt});
167 die "implement me" if !$net->{bridge
};
169 my $vmzone = $conf->{zone
} || "vm$vmid";
170 $net->{tap
} = "tap${vmid}i${netnum}";
171 $maclist->{$net->{tap
}} = $net->{macaddr
} || die "internal error";
172 $net->{zone
} = &$register_bridge_port($net->{bridge
}, $net->{tag
}, $vmzone, $net->{tap
});
173 $netinfo->{$vmid}->{$opt} = $net;
177 #print Dumper($netinfo);
179 # NOTE: zone names have length limit, so we need to
180 # translate them into shorter names
183 my $zonemap = { fw
=> 'fw' };
185 my $lookup_zonename = sub {
188 return $zonemap->{$zone} if defined($zonemap->{$zone});
189 $zonemap->{$zone} = 'z' . $zoneid++;
191 return $zonemap->{$zone};
194 foreach my $z (sort keys %$zoneinfo) {
195 $zoneinfo->{$z}->{id
} = &$lookup_zonename($z);
196 $zoneinfo->{$z}->{zonevar
} = uc($z);
197 $zoneinfo->{$z}->{zoneref
} = '$' . $zoneinfo->{$z}->{zonevar
};
203 $out = "# PVE zones\n";
204 foreach my $z (sort keys %$zoneinfo) {
205 $out .= "$zoneinfo->{$z}->{zonevar}=$zoneinfo->{$z}->{id}\n";
207 PVE
::Tools
::file_set_contents
("$targetdir/params", $out);
211 my $format = "%-30s %-10s %-15s\n";
212 $out = sprintf($format, '#ZONE', 'TYPE', 'OPTIONS');
214 foreach my $z (sort keys %$zoneinfo) {
215 my $zid = $zoneinfo->{$z}->{zoneref
};
216 if ($zoneinfo->{$z}->{type
} eq 'firewall') {
217 $out .= sprintf($format, $zid, $zoneinfo->{$z}->{type
}, '');
218 } elsif ($zoneinfo->{$z}->{type
} eq 'bridge') {
219 $out .= sprintf($format, $zid, 'ipv4', '');
220 } elsif ($zoneinfo->{$z}->{type
} eq 'bport') {
221 my $bridge_zone = $zoneinfo->{$z}->{bridge_zone
} || die "internal error";
222 my $bzid = $zoneinfo->{$bridge_zone}->{zoneref
} || die "internal error";
223 $out .= sprintf($format, "$zid:$bzid", 'bport', '');
225 die "internal error";
229 $out .= sprintf("#LAST LINE - ADD YOUR ENTRIES ABOVE THIS ONE - DO NOT REMOVE\n");
231 PVE
::Tools
::file_set_contents
("$targetdir/zones", $out);
235 $format = "%-25s %-20s %-10s %-15s\n";
236 $out = sprintf($format, '#ZONE', 'INTERFACE', 'BROADCAST', 'OPTIONS');
238 my $maclist_format = "%-15s %-15s %-15s\n";
239 my $macs = sprintf($maclist_format, '#DISPOSITION', 'INTERFACE', 'MACZONE');
241 foreach my $z (sort keys %$zoneinfo) {
242 my $zid = $zoneinfo->{$z}->{zoneref
};
243 if ($zoneinfo->{$z}->{type
} eq 'firewall') {
245 } elsif ($zoneinfo->{$z}->{type
} eq 'bridge') {
246 my $bridge = $zoneinfo->{$z}->{bridge
} || die "internal error";
247 $out .= sprintf($format, $zid, $bridge, 'detect', 'bridge,optional');
248 } elsif ($zoneinfo->{$z}->{type
} eq 'bport') {
249 my $ifaces = $zoneinfo->{$z}->{ifaces
};
250 foreach my $iface (sort keys %$ifaces) {
251 my $bridge_zone = $zoneinfo->{$z}->{bridge_zone
} || die "internal error";
252 my $bridge = $zoneinfo->{$bridge_zone}->{bridge
} || die "internal error";
253 my $iftxt = "$bridge:$iface";
255 if ($maclist->{$iface}) {
256 $out .= sprintf($format, $zid, $iftxt, '-', 'maclist');
257 $macs .= sprintf($maclist_format, 'ACCEPT', $iface, $maclist->{$iface});
259 $out .= sprintf($format, $zid, $iftxt, '-', '');
263 die "internal error";
267 $out .= sprintf("#LAST LINE - ADD YOUR ENTRIES ABOVE THIS ONE - DO NOT REMOVE\n");
269 PVE
::Tools
::file_set_contents
("$targetdir/interfaces", $out);
272 PVE
::Tools
::file_set_contents
("$targetdir/maclist", $macs);
276 $format = "%-15s %-15s %-15s %s\n";
277 $out = sprintf($format, '#SOURCE', 'DEST', 'POLICY', 'LOG');
278 $out .= sprintf($format, 'fw', 'all', 'ACCEPT', '');
280 # we need to disable intra-zone traffic on bridges. Else traffic
281 # from untracked interfaces simply pass the firewall
282 foreach my $z (sort keys %$zoneinfo) {
283 my $zid = $zoneinfo->{$z}->{zoneref
};
284 if ($zoneinfo->{$z}->{type
} eq 'bridge') {
285 $out .= sprintf($format, $zid, $zid, 'REJECT', 'info');
288 $out .= sprintf($format, 'all', 'all', 'REJECT', 'info');
290 PVE
::Tools
::file_set_contents
("$targetdir/policy", $out);
295 $out = sprintf($rule_format, '#ACTION', 'SOURCE', 'DEST', 'PROTO', 'DPORT', 'SPORT');
296 foreach my $vmid (sort keys %$rules) {
297 my $inrules = $rules->{$vmid}->{in};
298 my $outrules = $rules->{$vmid}->{out
};
300 if (scalar(@$inrules)) {
301 $out .= "# IN to VM $vmid\n";
302 foreach my $rule (@$inrules) {
303 foreach my $netid (keys %{$netinfo->{$vmid}}) {
304 my $net = $netinfo->{$vmid}->{$netid};
305 next if $rule->{iface
} && $rule->{iface
} ne $netid;
306 $out .= &$generate_input_rule($zoneinfo, $rule, $net, $netid);
311 if (scalar(@$outrules)) {
312 $out .= "# OUT from VM $vmid\n";
313 foreach my $rule (@$outrules) {
314 foreach my $netid (keys %{$netinfo->{$vmid}}) {
315 my $net = $netinfo->{$vmid}->{$netid};
316 next if $rule->{iface
} && $rule->{iface
} ne $netid;
317 $out .= &$generate_output_rule($zoneinfo, $rule, $net, $netid);
323 PVE
::Tools
::file_set_contents
("$targetdir/rules", $out);
328 my ($filename, $fh) = @_;
332 my $res = { in => [], out
=> [] };
334 my $macros = PVE
::Firewall
::get_shorewall_macros
();
336 while (defined(my $line = <$fh>)) {
337 next if $line =~ m/^#/;
338 next if $line =~ m/^\s*$/;
340 if ($line =~ m/^\[(in|out)\]\s*$/i) {
346 my ($action, $iface, $source, $dest, $proto, $dport, $sport) =
350 warn "skip incomplete line\n";
355 if ($action =~ m/^(ACCEPT|DROP|REJECT)$/) {
357 } elsif ($action =~ m/^(\S+)\((ACCEPT|DROP|REJECT)\)$/) {
358 ($service, $action) = ($1, $2);
359 if (!$macros->{$service}) {
360 warn "unknown service '$service'\n";
364 warn "unknown action '$action'\n";
368 $iface = undef if $iface && $iface eq '-';
369 if ($iface && $iface !~ m/^(net0|net1|net2|net3|net4|net5)$/) {
370 warn "unknown interface '$iface'\n";
374 $proto = undef if $proto && $proto eq '-';
375 if ($proto && $proto !~ m/^(icmp|tcp|udp)$/) {
376 warn "unknown protokol '$proto'\n";
380 $source = undef if $source && $source eq '-';
382 # if ($source !~ m/^(XYZ)$/) {
383 # warn "unknown source '$source'\n";
387 $dest = undef if $dest && $dest eq '-';
388 # if ($dest !~ m/^XYZ)$/) {
389 # warn "unknown destination '$dest'\n";
393 $dport = undef if $dport && $dport eq '-';
394 $sport = undef if $sport && $sport eq '-';
407 push @{$res->{$section}}, $rule;
413 sub read_local_vm_config
{
419 my $list = PVE
::QemuServer
::config_list
();
421 foreach my $vmid (keys %$list) {
422 # next if $vmid ne '100';
423 my $cfspath = PVE
::QemuServer
::cfs_config_path
($vmid);
424 if (my $conf = PVE
::Cluster
::cfs_read_file
($cfspath)) {
425 $qemu->{$vmid} = $conf;
429 my $vmdata = { openvz
=> $openvz, qemu
=> $qemu };
434 sub read_vm_firewall_rules
{
437 foreach my $vmid (keys %{$vmdata->{qemu
}}, keys %{$vmdata->{openvz
}}) {
438 my $filename = "/etc/pve/firewall/$vmid.fw";
439 my $fh = IO
::File-
>new($filename, O_RDONLY
);
442 $rules->{$vmid} = parse_fw_rules
($filename, $fh);
450 my $vmdata = read_local_vm_config
();
451 my $rules = read_vm_firewall_rules
($vmdata);
453 # print Dumper($vmdata);
455 my $swdir = '/etc/shorewall';
458 &$compile_shorewall($swdir, $vmdata, $rules);
460 PVE
::Tools
::run_command
(['shorewall', 'compile']);
463 sub compile_and_start
{
468 PVE
::Tools
::run_command
(['shorewall', $restart ?
'restart' : 'start']);