15 sub get_shorewall_macros
{
17 return $macros if $macros;
19 foreach my $path (</usr/share
/shorewall/macro
.*>) {
20 if ($path =~ m
|/macro\
.(\S
+)$|) {
29 sub get_etc_services
{
31 return $etc_services if $etc_services;
33 my $filename = "/etc/services";
35 my $fh = IO
::File-
>new($filename, O_RDONLY
);
37 warn "unable to read '$filename' - $!\n";
43 while (my $line = <$fh>) {
45 next if $line =~m/^#/;
46 next if ($line =~m/^\s*$/);
48 if ($line =~ m!^(\S+)\s+(\S+)/(tcp|udp).*$!) {
49 $services->{byid
}->{$2}->{name
} = $1;
50 $services->{byid
}->{$2}->{$3} = 1;
51 $services->{byname
}->{$1} = $services->{byid
}->{$2};
57 $etc_services = $services;
64 sub get_etc_protocols
{
65 return $etc_protocols if $etc_protocols;
67 my $filename = "/etc/protocols";
69 my $fh = IO
::File-
>new($filename, O_RDONLY
);
71 warn "unable to read '$filename' - $!\n";
77 while (my $line = <$fh>) {
79 next if $line =~m/^#/;
80 next if ($line =~m/^\s*$/);
82 if ($line =~ m!^(\S+)\s+(\d+)\s+.*$!) {
83 $protocols->{byid
}->{$2}->{name
} = $1;
84 $protocols->{byname
}->{$1} = $protocols->{byid
}->{$2};
90 $etc_protocols = $protocols;
92 return $etc_protocols;
95 sub parse_address_list
{
98 foreach my $aor (split(/,/, $str)) {
99 if (!Net
::IP-
>new($aor)) {
100 my $err = Net
::IP
::Error
();
101 die "invalid IP address: $err\n";
106 sub parse_port_name_number_or_range
{
109 my $services = PVE
::Firewall
::get_etc_services
();
111 foreach my $item (split(/,/, $str)) {
112 foreach my $pon (split(':', $item, 2)) {
113 next if $pon =~ m/^\d+$/ && $pon > 0 && $pon < 65536;
114 next if defined($services->{byname
}->{$pon});
115 die "invalid port '$pon'\n";
121 my $rule_format = "%-15s %-30s %-30s %-15s %-15s %-15s\n";
123 my $generate_input_rule = sub {
124 my ($zoneinfo, $rule, $net, $netid) = @_;
126 my $zone = $net->{zone
} || die "internal error";
127 my $zid = $zoneinfo->{$zone}->{zoneref
} || die "internal error";
128 my $tap = $net->{tap
} || die "internal error";
130 my $dest = "$zid:$tap";
133 $dest .= ":$rule->{dest}";
136 my $action = $rule->{service
} ?
137 "$rule->{service}($rule->{action})" : $rule->{action
};
141 if (!$rule->{source
}) {
142 push @$sources, 'all';
143 } elsif ($zoneinfo->{$zone}->{type
} eq 'bport') {
144 my $bridge_zone = $zoneinfo->{$zone}->{bridge_zone
} || die "internal error";
145 my $zoneref = $zoneinfo->{$bridge_zone}->{zoneref
} || die "internal error";
147 # using 'all' does not work, so we create one rule for
148 # each related zone on the same bridge
149 push @$sources, "${zoneref}:$rule->{source}";
150 foreach my $z (keys %$zoneinfo) {
152 next if !$zoneinfo->{$z}->{bridge_zone
};
153 next if $zoneinfo->{$z}->{bridge_zone
} ne $bridge_zone;
154 $zoneref = $zoneinfo->{$z}->{zoneref
} || die "internal error";
155 push @$sources, "${zoneref}:$rule->{source}";
158 push @$sources, "all:$rule->{source}";
163 foreach my $source (@$sources) {
164 $out .= sprintf($rule_format, $action, $source, $dest, $rule->{proto
} || '-',
165 $rule->{dport
} || '-', $rule->{sport
} || '-');
171 my $generate_output_rule = sub {
172 my ($zoneinfo, $rule, $net, $netid) = @_;
174 my $zone = $net->{zone
} || die "internal error";
175 my $zid = $zoneinfo->{$zone}->{zoneref
} || die "internal error";
176 my $tap = $net->{tap
} || die "internal error";
178 my $action = $rule->{service
} ?
179 "$rule->{service}($rule->{action})" : $rule->{action
};
183 if (!$rule->{dest
}) {
186 $dest = "all:$rule->{dest}";
189 return sprintf($rule_format, $action, "$zid:$tap", $dest,
190 $rule->{proto
} || '-', $rule->{dport
} || '-', $rule->{sport
} || '-');
193 # we need complete VM configuration of all VMs (openvz/qemu)
196 my $compile_shorewall = sub {
197 my ($targetdir, $vmdata, $rules) = @_;
199 # remove existing data ?
200 foreach my $file (qw(params zones rules interfaces maclist policy)) {
201 unlink "$targetdir/$file";
207 fw
=> { type
=> 'firewall' },
214 $register_bridge = sub {
215 my ($bridge, $vlan) = @_;
219 return $zone if $zoneinfo->{$zone};
221 my $ext_zone = "${bridge}_ext";
223 $zoneinfo->{$zone} = {
226 bridge_ext_zone
=> $ext_zone,
229 # physical input devices
230 my $dir = "/sys/class/net/$bridge/brif";
232 PVE
::Tools
::dir_glob_foreach
($dir, '((eth|bond).+)', sub {
234 $physical->{$slave} = 1;
237 $zoneinfo->{$ext_zone} = {
239 bridge_zone
=> $zone,
243 return &$register_bridge("${bridge}v${vlan}") if defined($vlan);
248 my $register_bridge_port = sub {
249 my ($bridge, $vlan, $vmzone, $tap) = @_;
251 my $bridge_zone = &$register_bridge($bridge, $vlan);
252 my $zone = $bridge_zone . '_' . $vmzone;
254 if (!$zoneinfo->{$zone}) {
255 $zoneinfo->{$zone} = {
257 bridge_zone
=> $bridge_zone,
262 $zoneinfo->{$zone}->{ifaces
}->{$tap} = 1;
267 foreach my $vmid (keys %{$vmdata->{qemu
}}) {
268 $netinfo->{$vmid} = {};
269 my $conf = $vmdata->{qemu
}->{$vmid};
270 foreach my $opt (keys %$conf) {
271 next if $opt !~ m/^net(\d+)$/;
273 my $net = PVE
::QemuServer
::parse_net
($conf->{$opt});
275 die "implement me" if !$net->{bridge
};
277 my $vmzone = $conf->{zone
} || "vm$vmid";
278 $net->{tap
} = "tap${vmid}i${netnum}";
279 $maclist->{$net->{tap
}} = $net->{macaddr
} || die "internal error";
280 $net->{zone
} = &$register_bridge_port($net->{bridge
}, $net->{tag
}, $vmzone, $net->{tap
});
281 $netinfo->{$vmid}->{$opt} = $net;
285 #print Dumper($netinfo);
287 # NOTE: zone names have length limit, so we need to
288 # translate them into shorter names
291 my $zonemap = { fw
=> 'fw' };
293 my $lookup_zonename = sub {
296 return $zonemap->{$zone} if defined($zonemap->{$zone});
297 $zonemap->{$zone} = 'z' . $zoneid++;
299 return $zonemap->{$zone};
302 foreach my $z (sort keys %$zoneinfo) {
303 $zoneinfo->{$z}->{id
} = &$lookup_zonename($z);
304 $zoneinfo->{$z}->{zonevar
} = uc($z);
305 $zoneinfo->{$z}->{zoneref
} = '$' . $zoneinfo->{$z}->{zonevar
};
311 $out = "# PVE zones\n";
312 foreach my $z (sort keys %$zoneinfo) {
313 $out .= "$zoneinfo->{$z}->{zonevar}=$zoneinfo->{$z}->{id}\n";
315 PVE
::Tools
::file_set_contents
("$targetdir/params", $out);
319 my $format = "%-30s %-10s %-15s\n";
320 $out = sprintf($format, '#ZONE', 'TYPE', 'OPTIONS');
322 foreach my $z (sort keys %$zoneinfo) {
323 my $zid = $zoneinfo->{$z}->{zoneref
};
324 if ($zoneinfo->{$z}->{type
} eq 'firewall') {
325 $out .= sprintf($format, $zid, $zoneinfo->{$z}->{type
}, '');
326 } elsif ($zoneinfo->{$z}->{type
} eq 'bridge') {
327 $out .= sprintf($format, $zid, 'ipv4', '');
328 } elsif ($zoneinfo->{$z}->{type
} eq 'bport') {
329 my $bridge_zone = $zoneinfo->{$z}->{bridge_zone
} || die "internal error";
330 my $bzid = $zoneinfo->{$bridge_zone}->{zoneref
} || die "internal error";
331 $out .= sprintf($format, "$zid:$bzid", 'bport', '');
333 die "internal error";
337 $out .= sprintf("#LAST LINE - ADD YOUR ENTRIES ABOVE THIS ONE - DO NOT REMOVE\n");
339 PVE
::Tools
::file_set_contents
("$targetdir/zones", $out);
343 $format = "%-25s %-20s %-10s %-15s\n";
344 $out = sprintf($format, '#ZONE', 'INTERFACE', 'BROADCAST', 'OPTIONS');
346 my $maclist_format = "%-15s %-15s %-15s\n";
347 my $macs = sprintf($maclist_format, '#DISPOSITION', 'INTERFACE', 'MACZONE');
349 foreach my $z (sort keys %$zoneinfo) {
350 my $zid = $zoneinfo->{$z}->{zoneref
};
351 if ($zoneinfo->{$z}->{type
} eq 'firewall') {
353 } elsif ($zoneinfo->{$z}->{type
} eq 'bridge') {
354 my $bridge = $zoneinfo->{$z}->{bridge
} || die "internal error";
355 $out .= sprintf($format, $zid, $bridge, 'detect', 'bridge,optional');
356 } elsif ($zoneinfo->{$z}->{type
} eq 'bport') {
357 my $ifaces = $zoneinfo->{$z}->{ifaces
};
358 foreach my $iface (sort keys %$ifaces) {
359 my $bridge_zone = $zoneinfo->{$z}->{bridge_zone
} || die "internal error";
360 my $bridge = $zoneinfo->{$bridge_zone}->{bridge
} || die "internal error";
361 my $iftxt = "$bridge:$iface";
363 if ($maclist->{$iface}) {
364 $out .= sprintf($format, $zid, $iftxt, '-', 'maclist');
365 $macs .= sprintf($maclist_format, 'ACCEPT', $iface, $maclist->{$iface});
367 $out .= sprintf($format, $zid, $iftxt, '-', '');
371 die "internal error";
375 $out .= sprintf("#LAST LINE - ADD YOUR ENTRIES ABOVE THIS ONE - DO NOT REMOVE\n");
377 PVE
::Tools
::file_set_contents
("$targetdir/interfaces", $out);
380 PVE
::Tools
::file_set_contents
("$targetdir/maclist", $macs);
384 $format = "%-15s %-15s %-15s %s\n";
385 $out = sprintf($format, '#SOURCE', 'DEST', 'POLICY', 'LOG');
386 $out .= sprintf($format, 'fw', 'all', 'ACCEPT', '');
388 # we need to disable intra-zone traffic on bridges. Else traffic
389 # from untracked interfaces simply pass the firewall
390 foreach my $z (sort keys %$zoneinfo) {
391 my $zid = $zoneinfo->{$z}->{zoneref
};
392 if ($zoneinfo->{$z}->{type
} eq 'bridge') {
393 $out .= sprintf($format, $zid, $zid, 'REJECT', 'info');
396 $out .= sprintf($format, 'all', 'all', 'REJECT', 'info');
398 PVE
::Tools
::file_set_contents
("$targetdir/policy", $out);
403 $out = sprintf($rule_format, '#ACTION', 'SOURCE', 'DEST', 'PROTO', 'DPORT', 'SPORT');
404 foreach my $vmid (sort keys %$rules) {
405 my $inrules = $rules->{$vmid}->{in};
406 my $outrules = $rules->{$vmid}->{out
};
408 if (scalar(@$inrules)) {
409 $out .= "# IN to VM $vmid\n";
410 foreach my $rule (@$inrules) {
411 foreach my $netid (keys %{$netinfo->{$vmid}}) {
412 my $net = $netinfo->{$vmid}->{$netid};
413 next if $rule->{iface
} && $rule->{iface
} ne $netid;
414 $out .= &$generate_input_rule($zoneinfo, $rule, $net, $netid);
419 if (scalar(@$outrules)) {
420 $out .= "# OUT from VM $vmid\n";
421 foreach my $rule (@$outrules) {
422 foreach my $netid (keys %{$netinfo->{$vmid}}) {
423 my $net = $netinfo->{$vmid}->{$netid};
424 next if $rule->{iface
} && $rule->{iface
} ne $netid;
425 $out .= &$generate_output_rule($zoneinfo, $rule, $net, $netid);
431 PVE
::Tools
::file_set_contents
("$targetdir/rules", $out);
436 my ($filename, $fh) = @_;
440 my $res = { in => [], out
=> [] };
442 my $macros = get_shorewall_macros
();
443 my $protocols = get_etc_protocols
();
445 while (defined(my $line = <$fh>)) {
446 next if $line =~ m/^#/;
447 next if $line =~ m/^\s*$/;
449 if ($line =~ m/^\[(in|out)\]\s*$/i) {
455 my ($action, $iface, $source, $dest, $proto, $dport, $sport) =
459 warn "skip incomplete line\n";
464 if ($action =~ m/^(ACCEPT|DROP|REJECT)$/) {
466 } elsif ($action =~ m/^(\S+)\((ACCEPT|DROP|REJECT)\)$/) {
467 ($service, $action) = ($1, $2);
468 if (!$macros->{$service}) {
469 warn "unknown service '$service'\n";
473 warn "unknown action '$action'\n";
477 $iface = undef if $iface && $iface eq '-';
478 if ($iface && $iface !~ m/^(net0|net1|net2|net3|net4|net5)$/) {
479 warn "unknown interface '$iface'\n";
483 $proto = undef if $proto && $proto eq '-';
484 if ($proto && !(defined($protocols->{byname
}->{$proto}) ||
485 defined($protocols->{byid
}->{$proto}))) {
486 warn "unknown protokol '$proto'\n";
490 $source = undef if $source && $source eq '-';
491 $dest = undef if $dest && $dest eq '-';
493 $dport = undef if $dport && $dport eq '-';
494 $sport = undef if $sport && $sport eq '-';
497 parse_address_list
($source) if $source;
498 parse_address_list
($dest) if $dest;
499 parse_port_name_number_or_range
($dport) if $dport;
500 parse_port_name_number_or_range
($sport) if $sport;
520 push @{$res->{$section}}, $rule;
526 sub read_local_vm_config
{
532 my $list = PVE
::QemuServer
::config_list
();
534 foreach my $vmid (keys %$list) {
535 #next if !($vmid eq '100' || $vmid eq '102');
536 my $cfspath = PVE
::QemuServer
::cfs_config_path
($vmid);
537 if (my $conf = PVE
::Cluster
::cfs_read_file
($cfspath)) {
538 $qemu->{$vmid} = $conf;
542 my $vmdata = { openvz
=> $openvz, qemu
=> $qemu };
547 sub read_vm_firewall_rules
{
550 foreach my $vmid (keys %{$vmdata->{qemu
}}, keys %{$vmdata->{openvz
}}) {
551 my $filename = "/etc/pve/firewall/$vmid.fw";
552 my $fh = IO
::File-
>new($filename, O_RDONLY
);
555 $rules->{$vmid} = parse_fw_rules
($filename, $fh);
563 my $vmdata = read_local_vm_config
();
564 my $rules = read_vm_firewall_rules
($vmdata);
566 # print Dumper($vmdata);
568 my $swdir = '/etc/shorewall';
571 &$compile_shorewall($swdir, $vmdata, $rules);
573 PVE
::Tools
::run_command
(['shorewall', 'compile']);
576 sub compile_and_start
{
581 PVE
::Tools
::run_command
(['shorewall', $restart ?
'restart' : 'start']);