11 use PVE
::Tools
qw(run_command);
18 sub get_shorewall_macros
{
20 return $macros if $macros;
22 foreach my $path (</usr/share
/shorewall/macro
.*>) {
23 if ($path =~ m
|/macro\
.(\S
+)$|) {
32 sub get_etc_services
{
34 return $etc_services if $etc_services;
36 my $filename = "/etc/services";
38 my $fh = IO
::File-
>new($filename, O_RDONLY
);
40 warn "unable to read '$filename' - $!\n";
46 while (my $line = <$fh>) {
48 next if $line =~m/^#/;
49 next if ($line =~m/^\s*$/);
51 if ($line =~ m!^(\S+)\s+(\S+)/(tcp|udp).*$!) {
52 $services->{byid
}->{$2}->{name
} = $1;
53 $services->{byid
}->{$2}->{$3} = 1;
54 $services->{byname
}->{$1} = $services->{byid
}->{$2};
60 $etc_services = $services;
68 sub get_etc_protocols
{
69 return $etc_protocols if $etc_protocols;
71 my $filename = "/etc/protocols";
73 my $fh = IO
::File-
>new($filename, O_RDONLY
);
75 warn "unable to read '$filename' - $!\n";
81 while (my $line = <$fh>) {
83 next if $line =~m/^#/;
84 next if ($line =~m/^\s*$/);
86 if ($line =~ m!^(\S+)\s+(\d+)\s+.*$!) {
87 $protocols->{byid
}->{$2}->{name
} = $1;
88 $protocols->{byname
}->{$1} = $protocols->{byid
}->{$2};
94 $etc_protocols = $protocols;
96 return $etc_protocols;
99 sub parse_address_list
{
103 foreach my $aor (split(/,/, $str)) {
104 if (!Net
::IP-
>new($aor)) {
105 my $err = Net
::IP
::Error
();
106 die "invalid IP address: $err\n";
114 sub parse_port_name_number_or_range
{
117 my $services = PVE
::Firewall
::get_etc_services
();
119 foreach my $item (split(/,/, $str)) {
121 foreach my $pon (split(':', $item, 2)) {
122 if ($pon =~ m/^\d+$/){
123 die "invalid port '$pon'\n" if $pon < 0 && $pon > 65536;
125 die "invalid port $services->{byname}->{$pon}\n" if !$services->{byname
}->{$pon};
134 my $rule_format = "%-15s %-30s %-30s %-15s %-15s %-15s\n";
139 run_command
("/sbin/iptables $cmd", outfunc
=> sub {}, errfunc
=> sub {});
142 sub iptables_restore
{
144 unshift (@ruleset, '*filter');
145 push (@ruleset, 'COMMIT');
147 my $cmdlist = join("\n", @ruleset);
149 run_command
("echo '$cmdlist' | /sbin/iptables-restore -n", outfunc
=> sub {});
152 sub iptables_addrule
{
155 push (@ruleset, $rule);
158 sub iptables_chain_exist
{
162 iptables
("-n --list $chain");
169 sub iptables_rule_exist
{
173 iptables
("-C $rule");
180 sub iptables_generate_rule
{
181 my ($chain, $rule) = @_;
183 my $cmd = "-A $chain";
185 $cmd .= " -m iprange --src-range" if $rule->{nbsource
} && $rule->{nbsource
} > 1;
186 $cmd .= " -s $rule->{source}" if $rule->{source
};
187 $cmd .= " -m iprange --dst-range" if $rule->{nbdest
} && $rule->{nbdest
} > 1;
188 $cmd .= " -d $rule->{dest}" if $rule->{destination
};
189 $cmd .= " -p $rule->{proto}" if $rule->{proto
};
190 $cmd .= " --match multiport" if $rule->{nbdport
} && $rule->{nbdport
} > 1;
191 $cmd .= " --dport $rule->{dport}" if $rule->{dport
};
192 $cmd .= " --match multiport" if $rule->{nbsport
} && $rule->{nbsport
} > 1;
193 $cmd .= " --sport $rule->{sport}" if $rule->{sport
};
194 $cmd .= " -j $rule->{action}" if $rule->{action
};
196 iptables_addrule
($cmd);
200 sub generate_bridge_rules
{
203 if(!iptables_chain_exist
("BRIDGEFW-OUT")){
204 iptables_addrule
(":BRIDGEFW-OUT - [0:0]");
207 if(!iptables_chain_exist
("BRIDGEFW-IN")){
208 iptables_addrule
(":BRIDGEFW-IN - [0:0]");
211 if(!iptables_chain_exist
("proxmoxfw-FORWARD")){
212 iptables_addrule
(":proxmoxfw-FORWARD - [0:0]");
213 iptables_addrule
("-I FORWARD -j proxmoxfw-FORWARD");
214 iptables_addrule
("-A proxmoxfw-FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT");
215 iptables_addrule
("-A proxmoxfw-FORWARD -m physdev --physdev-is-in --physdev-is-bridged -j BRIDGEFW-OUT");
216 iptables_addrule
("-A proxmoxfw-FORWARD -m physdev --physdev-is-out --physdev-is-bridged -j BRIDGEFW-IN");
220 generate_proxmoxfwinput
();
222 if(!iptables_chain_exist
("$bridge-IN")){
223 iptables_addrule
(":$bridge-IN - [0:0]");
224 iptables_addrule
("-A proxmoxfw-FORWARD -i $bridge -j DROP"); #disable interbridge routing
225 iptables_addrule
("-A BRIDGEFW-IN -j $bridge-IN");
226 iptables_addrule
("-A $bridge-IN -j ACCEPT");
230 if(!iptables_chain_exist
("$bridge-OUT")){
231 iptables_addrule
(":$bridge-OUT - [0:0]");
232 iptables_addrule
("-A proxmoxfw-FORWARD -o $bridge -j DROP"); # disable interbridge routing
233 iptables_addrule
("-A BRIDGEFW-OUT -j $bridge-OUT");
240 sub generate_tap_rules_direction
{
241 my ($iface, $netid, $rules, $bridge, $direction) = @_;
243 my $tapchain = "$iface-$direction";
245 iptables_addrule
(":$tapchain - [0:0]");
247 iptables_addrule
("-A $tapchain -m state --state INVALID -j DROP");
248 iptables_addrule
("-A $tapchain -m state --state RELATED,ESTABLISHED -j ACCEPT");
250 if (scalar(@$rules)) {
251 foreach my $rule (@$rules) {
252 next if $rule->{iface
} && $rule->{iface
} ne $netid;
253 if($rule->{action
} =~ m/^(GROUP-(\S+))$/){
254 $rule->{action
} .= "-$direction";
255 #generate empty group rule if don't exist
256 if(!iptables_chain_exist
($rule->{action
})){
257 generate_group_rules
($2);
260 #we go to vmbr-IN if accept in out rules
261 $rule->{action
} = "$bridge-IN" if $rule->{action
} eq 'ACCEPT' && $direction eq 'OUT';
262 iptables_generate_rule
($tapchain, $rule);
266 iptables_addrule
("-A $tapchain -j LOG --log-prefix \"$tapchain-dropped: \" --log-level 4");
267 iptables_addrule
("-A $tapchain -j DROP");
269 #plug the tap chain to bridge chain
270 my $physdevdirection = $direction eq 'IN' ?
"out":"in";
271 my $rule = "$bridge-$direction -m physdev --physdev-$physdevdirection $iface --physdev-is-bridged -j $tapchain";
273 if(!iptables_rule_exist
($rule)){
274 iptables_addrule
("-I $rule");
277 if($direction eq 'OUT'){
279 my $rule = "proxmoxfw-INPUT -m physdev --physdev-$physdevdirection $iface -j $tapchain";
281 if(!iptables_rule_exist
($rule)){
282 iptables_addrule
("-A $rule");
287 sub generate_tap_rules
{
288 my ($net, $netid, $vmid) = @_;
290 my $filename = "/etc/pve/firewall/$vmid.fw";
291 my $fh = IO
::File-
>new($filename, O_RDONLY
);
294 #generate bridge rules
295 my $bridge = $net->{bridge
};
296 my $tag = $net->{tag
};
297 $bridge .= "v$tag" if $tag;
300 my $rules = parse_fw_rules
($filename, $fh);
302 my $inrules = $rules->{in};
303 my $outrules = $rules->{out
};
305 my $iface = "tap".$vmid."i".$1 if $netid =~ m/net(\d+)/;
307 generate_bridge_rules
($bridge);
308 generate_tap_rules_direction
($iface, $netid, $inrules, $bridge, 'IN');
309 generate_tap_rules_direction
($iface, $netid, $outrules, $bridge, 'OUT');
313 sub flush_tap_rules
{
314 my ($net, $netid, $vmid) = @_;
316 my $bridge = $net->{bridge
};
317 my $iface = "tap".$vmid."i".$1 if $netid =~ m/net(\d+)/;
319 flush_tap_rules_direction
($iface, $bridge, 'IN');
320 flush_tap_rules_direction
($iface, $bridge, 'OUT');
324 sub flush_tap_rules_direction
{
325 my ($iface, $bridge, $direction) = @_;
327 my $tapchain = "$iface-$direction";
329 if(iptables_chain_exist
($tapchain)){
330 iptables_addrule
("-F $tapchain");
332 my $physdevdirection = $direction eq 'IN' ?
"out":"in";
333 my $rule = "$bridge-$direction -m physdev --physdev-$physdevdirection $iface --physdev-is-bridged -j $tapchain";
334 if(iptables_rule_exist
($rule)){
335 iptables_addrule
("-D $rule");
338 if($direction eq 'OUT'){
339 my $rule = "proxmoxfw-INPUT -m physdev --physdev-$physdevdirection $iface -j $tapchain";
340 if(iptables_rule_exist
($rule)){
341 iptables_addrule
("-D $rule");
345 iptables_addrule
("-X $tapchain");
351 generate_proxmoxfwinput
();
352 generate_proxmoxfwoutput
();
354 my $filename = "/etc/pve/local/host.fw";
355 my $fh = IO
::File-
>new($filename, O_RDONLY
);
358 my $rules = parse_fw_rules
($filename, $fh);
359 my $inrules = $rules->{in};
360 my $outrules = $rules->{out
};
362 #host inbound firewall
363 iptables_addrule
(":host-IN - [0:0]");
364 iptables_addrule
("-A host-IN -m state --state INVALID -j DROP");
365 iptables_addrule
("-A host-IN -m state --state RELATED,ESTABLISHED -j ACCEPT");
366 iptables_addrule
("-A host-IN -i lo -j ACCEPT");
367 iptables_addrule
("-A host-IN -m addrtype --dst-type MULTICAST -j ACCEPT");
368 iptables_addrule
("-A host-IN -p udp -m state --state NEW -m multiport --dports 5404,5405 -j ACCEPT");
369 iptables_addrule
("-A host-IN -p udp -m udp --dport 9000 -j ACCEPT"); #corosync
371 if (scalar(@$inrules)) {
372 foreach my $rule (@$inrules) {
373 #we use RETURN because we need to check also tap rules
374 $rule->{action
} = 'RETURN' if $rule->{action
} eq 'ACCEPT';
375 iptables_generate_rule
('host-IN', $rule);
379 iptables_addrule
("-A host-IN -j LOG --log-prefix \"kvmhost-IN dropped: \" --log-level 4");
380 iptables_addrule
("-A host-IN -j DROP");
382 #host outbound firewall
383 iptables_addrule
(":host-OUT - [0:0]");
384 iptables_addrule
("-A host-OUT -m state --state INVALID -j DROP");
385 iptables_addrule
("-A host-OUT -m state --state RELATED,ESTABLISHED -j ACCEPT");
386 iptables_addrule
("-A host-OUT -o lo -j ACCEPT");
387 iptables_addrule
("-A host-OUT -m addrtype --dst-type MULTICAST -j ACCEPT");
388 iptables_addrule
("-A host-OUT -p udp -m state --state NEW -m multiport --dports 5404,5405 -j ACCEPT");
389 iptables_addrule
("-A host-OUT -p udp -m udp --dport 9000 -j ACCEPT"); #corosync
391 if (scalar(@$outrules)) {
392 foreach my $rule (@$outrules) {
393 #we use RETURN because we need to check also tap rules
394 $rule->{action
} = 'RETURN' if $rule->{action
} eq 'ACCEPT';
395 iptables_generate_rule
('host-OUT', $rule);
399 iptables_addrule
("-A host-OUT -j LOG --log-prefix \"kvmhost-OUT dropped: \" --log-level 4");
400 iptables_addrule
("-A host-OUT -j DROP");
403 my $rule = "proxmoxfw-INPUT -j host-IN";
404 if(!iptables_rule_exist
($rule)){
405 iptables_addrule
("-I $rule");
408 $rule = "proxmoxfw-OUTPUT -j host-OUT";
409 if(!iptables_rule_exist
($rule)){
410 iptables_addrule
("-I $rule");
420 my $chain = "host-IN";
422 my $rule = "proxmoxfw-INPUT -j $chain";
423 if(iptables_rule_exist
($rule)){
424 iptables_addrule
("-D $rule");
427 if(iptables_chain_exist
($chain)){
428 iptables_addrule
("-F $chain");
429 iptables_addrule
("-X $chain");
434 $rule = "proxmoxfw-OUTPUT -j $chain";
435 if(iptables_rule_exist
($rule)){
436 iptables_addrule
("-D $rule");
439 if(iptables_chain_exist
($chain)){
440 iptables_addrule
("-F $chain");
441 iptables_addrule
("-X $chain");
447 sub generate_proxmoxfwinput
{
449 if(!iptables_chain_exist
("proxmoxfw-INPUT")){
450 iptables_addrule
(":proxmoxfw-INPUT - [0:0]");
451 iptables_addrule
("-I INPUT -j proxmoxfw-INPUT");
452 iptables_addrule
("-A INPUT -j ACCEPT");
456 sub generate_proxmoxfwoutput
{
458 if(!iptables_chain_exist
("proxmoxfw-OUTPUT")){
459 iptables_addrule
(":proxmoxfw-OUTPUT - [0:0]");
460 iptables_addrule
("-I OUTPUT -j proxmoxfw-OUTPUT");
461 iptables_addrule
("-A OUTPUT -j ACCEPT");
466 sub enable_group_rules
{
469 generate_group_rules
($group);
473 sub generate_group_rules
{
476 my $filename = "/etc/pve/firewall/groups.fw";
477 my $fh = IO
::File-
>new($filename, O_RDONLY
);
480 my $rules = parse_fw_rules
($filename, $fh, $group);
481 my $inrules = $rules->{in};
482 my $outrules = $rules->{out
};
484 my $chain = "GROUP-".$group."-IN";
486 iptables_addrule
(":$chain - [0:0]");
488 if (scalar(@$inrules)) {
489 foreach my $rule (@$inrules) {
490 iptables_generate_rule
($chain, $rule);
494 $chain = "GROUP-".$group."-OUT";
496 iptables_addrule
(":$chain - [0:0]");
498 if(!iptables_chain_exist
("BRIDGEFW-OUT")){
499 iptables_addrule
(":BRIDGEFW-OUT - [0:0]");
502 if(!iptables_chain_exist
("BRIDGEFW-IN")){
503 iptables_addrule
(":BRIDGEFW-IN - [0:0]");
506 if (scalar(@$outrules)) {
507 foreach my $rule (@$outrules) {
508 #we go the BRIDGEFW-IN because we need to check also other tap rules
509 #(and group rules can be set on any bridge, so we can't go to VMBRXX-IN)
510 $rule->{action
} = 'BRIDGEFW-IN' if $rule->{action
} eq 'ACCEPT';
511 iptables_generate_rule
($chain, $rule);
517 sub disable_group_rules
{
520 my $chain = "GROUP-".$group."-IN";
522 if(iptables_chain_exist
($chain)){
523 iptables_addrule
("-F $chain");
524 iptables_addrule
("-X $chain");
527 $chain = "GROUP-".$group."-OUT";
529 if(iptables_chain_exist
($chain)){
530 iptables_addrule
("-F $chain");
531 iptables_addrule
("-X $chain");
534 #iptables_restore will die if security group is linked in a tap chain
535 #maybe can we improve that, parsing each vm config, or parsing iptables -S
536 #to see if the security group is linked or not
541 my $generate_input_rule = sub {
542 my ($zoneinfo, $rule, $net, $netid) = @_;
544 my $zone = $net->{zone
} || die "internal error";
545 my $zid = $zoneinfo->{$zone}->{zoneref
} || die "internal error";
546 my $tap = $net->{tap
} || die "internal error";
548 my $dest = "$zid:$tap";
551 $dest .= ":$rule->{dest}";
554 my $action = $rule->{service
} ?
555 "$rule->{service}($rule->{action})" : $rule->{action
};
559 if (!$rule->{source
}) {
560 push @$sources, 'all';
561 } elsif ($zoneinfo->{$zone}->{type
} eq 'bport') {
562 my $bridge_zone = $zoneinfo->{$zone}->{bridge_zone
} || die "internal error";
563 my $zoneref = $zoneinfo->{$bridge_zone}->{zoneref
} || die "internal error";
565 # using 'all' does not work, so we create one rule for
566 # each related zone on the same bridge
567 push @$sources, "${zoneref}:$rule->{source}";
568 foreach my $z (keys %$zoneinfo) {
570 next if !$zoneinfo->{$z}->{bridge_zone
};
571 next if $zoneinfo->{$z}->{bridge_zone
} ne $bridge_zone;
572 $zoneref = $zoneinfo->{$z}->{zoneref
} || die "internal error";
573 push @$sources, "${zoneref}:$rule->{source}";
576 push @$sources, "all:$rule->{source}";
581 foreach my $source (@$sources) {
582 $out .= sprintf($rule_format, $action, $source, $dest, $rule->{proto
} || '-',
583 $rule->{dport
} || '-', $rule->{sport
} || '-');
589 my $generate_output_rule = sub {
590 my ($zoneinfo, $rule, $net, $netid) = @_;
592 my $zone = $net->{zone
} || die "internal error";
593 my $zid = $zoneinfo->{$zone}->{zoneref
} || die "internal error";
594 my $tap = $net->{tap
} || die "internal error";
596 my $action = $rule->{service
} ?
597 "$rule->{service}($rule->{action})" : $rule->{action
};
601 if (!$rule->{dest
}) {
604 $dest = "all:$rule->{dest}";
607 return sprintf($rule_format, $action, "$zid:$tap", $dest,
608 $rule->{proto
} || '-', $rule->{dport
} || '-', $rule->{sport
} || '-');
611 # we need complete VM configuration of all VMs (openvz/qemu)
614 my $compile_shorewall = sub {
615 my ($targetdir, $vmdata, $rules) = @_;
617 # remove existing data ?
618 foreach my $file (qw(params zones rules interfaces maclist policy)) {
619 unlink "$targetdir/$file";
625 fw
=> { type
=> 'firewall' },
632 $register_bridge = sub {
633 my ($bridge, $vlan) = @_;
637 return $zone if $zoneinfo->{$zone};
639 my $ext_zone = "${bridge}_ext";
641 $zoneinfo->{$zone} = {
644 bridge_ext_zone
=> $ext_zone,
647 # physical input devices
648 my $dir = "/sys/class/net/$bridge/brif";
650 PVE
::Tools
::dir_glob_foreach
($dir, '((eth|bond).+)', sub {
652 $physical->{$slave} = 1;
655 $zoneinfo->{$ext_zone} = {
657 bridge_zone
=> $zone,
661 return &$register_bridge("${bridge}v${vlan}") if defined($vlan);
666 my $register_bridge_port = sub {
667 my ($bridge, $vlan, $vmzone, $tap) = @_;
669 my $bridge_zone = &$register_bridge($bridge, $vlan);
670 my $zone = $bridge_zone . '_' . $vmzone;
672 if (!$zoneinfo->{$zone}) {
673 $zoneinfo->{$zone} = {
675 bridge_zone
=> $bridge_zone,
680 $zoneinfo->{$zone}->{ifaces
}->{$tap} = 1;
685 foreach my $vmid (keys %{$vmdata->{qemu
}}) {
686 $netinfo->{$vmid} = {};
687 my $conf = $vmdata->{qemu
}->{$vmid};
688 foreach my $opt (keys %$conf) {
689 next if $opt !~ m/^net(\d+)$/;
691 my $net = PVE
::QemuServer
::parse_net
($conf->{$opt});
693 die "implement me" if !$net->{bridge
};
695 my $vmzone = $conf->{zone
} || "vm$vmid";
696 $net->{tap
} = "tap${vmid}i${netnum}";
697 $maclist->{$net->{tap
}} = $net->{macaddr
} || die "internal error";
698 $net->{zone
} = &$register_bridge_port($net->{bridge
}, $net->{tag
}, $vmzone, $net->{tap
});
699 $netinfo->{$vmid}->{$opt} = $net;
703 #print Dumper($netinfo);
705 # NOTE: zone names have length limit, so we need to
706 # translate them into shorter names
709 my $zonemap = { fw
=> 'fw' };
711 my $lookup_zonename = sub {
714 return $zonemap->{$zone} if defined($zonemap->{$zone});
715 $zonemap->{$zone} = 'z' . $zoneid++;
717 return $zonemap->{$zone};
720 foreach my $z (sort keys %$zoneinfo) {
721 $zoneinfo->{$z}->{id
} = &$lookup_zonename($z);
722 $zoneinfo->{$z}->{zonevar
} = uc($z);
723 $zoneinfo->{$z}->{zoneref
} = '$' . $zoneinfo->{$z}->{zonevar
};
729 $out = "# PVE zones\n";
730 foreach my $z (sort keys %$zoneinfo) {
731 $out .= "$zoneinfo->{$z}->{zonevar}=$zoneinfo->{$z}->{id}\n";
733 PVE
::Tools
::file_set_contents
("$targetdir/params", $out);
737 my $format = "%-30s %-10s %-15s\n";
738 $out = sprintf($format, '#ZONE', 'TYPE', 'OPTIONS');
740 foreach my $z (sort keys %$zoneinfo) {
741 my $zid = $zoneinfo->{$z}->{zoneref
};
742 if ($zoneinfo->{$z}->{type
} eq 'firewall') {
743 $out .= sprintf($format, $zid, $zoneinfo->{$z}->{type
}, '');
744 } elsif ($zoneinfo->{$z}->{type
} eq 'bridge') {
745 $out .= sprintf($format, $zid, 'ipv4', '');
746 } elsif ($zoneinfo->{$z}->{type
} eq 'bport') {
747 my $bridge_zone = $zoneinfo->{$z}->{bridge_zone
} || die "internal error";
748 my $bzid = $zoneinfo->{$bridge_zone}->{zoneref
} || die "internal error";
749 $out .= sprintf($format, "$zid:$bzid", 'bport', '');
751 die "internal error";
755 $out .= sprintf("#LAST LINE - ADD YOUR ENTRIES ABOVE THIS ONE - DO NOT REMOVE\n");
757 PVE
::Tools
::file_set_contents
("$targetdir/zones", $out);
761 $format = "%-25s %-20s %-10s %-15s\n";
762 $out = sprintf($format, '#ZONE', 'INTERFACE', 'BROADCAST', 'OPTIONS');
764 my $maclist_format = "%-15s %-15s %-15s\n";
765 my $macs = sprintf($maclist_format, '#DISPOSITION', 'INTERFACE', 'MACZONE');
767 foreach my $z (sort keys %$zoneinfo) {
768 my $zid = $zoneinfo->{$z}->{zoneref
};
769 if ($zoneinfo->{$z}->{type
} eq 'firewall') {
771 } elsif ($zoneinfo->{$z}->{type
} eq 'bridge') {
772 my $bridge = $zoneinfo->{$z}->{bridge
} || die "internal error";
773 $out .= sprintf($format, $zid, $bridge, 'detect', 'bridge,optional');
774 } elsif ($zoneinfo->{$z}->{type
} eq 'bport') {
775 my $ifaces = $zoneinfo->{$z}->{ifaces
};
776 foreach my $iface (sort keys %$ifaces) {
777 my $bridge_zone = $zoneinfo->{$z}->{bridge_zone
} || die "internal error";
778 my $bridge = $zoneinfo->{$bridge_zone}->{bridge
} || die "internal error";
779 my $iftxt = "$bridge:$iface";
781 if ($maclist->{$iface}) {
782 $out .= sprintf($format, $zid, $iftxt, '-', 'maclist');
783 $macs .= sprintf($maclist_format, 'ACCEPT', $iface, $maclist->{$iface});
785 $out .= sprintf($format, $zid, $iftxt, '-', '');
789 die "internal error";
793 $out .= sprintf("#LAST LINE - ADD YOUR ENTRIES ABOVE THIS ONE - DO NOT REMOVE\n");
795 PVE
::Tools
::file_set_contents
("$targetdir/interfaces", $out);
798 PVE
::Tools
::file_set_contents
("$targetdir/maclist", $macs);
802 $format = "%-15s %-15s %-15s %s\n";
803 $out = sprintf($format, '#SOURCE', 'DEST', 'POLICY', 'LOG');
804 $out .= sprintf($format, 'fw', 'all', 'ACCEPT', '');
806 # we need to disable intra-zone traffic on bridges. Else traffic
807 # from untracked interfaces simply pass the firewall
808 foreach my $z (sort keys %$zoneinfo) {
809 my $zid = $zoneinfo->{$z}->{zoneref
};
810 if ($zoneinfo->{$z}->{type
} eq 'bridge') {
811 $out .= sprintf($format, $zid, $zid, 'REJECT', 'info');
814 $out .= sprintf($format, 'all', 'all', 'REJECT', 'info');
816 PVE
::Tools
::file_set_contents
("$targetdir/policy", $out);
821 $out = sprintf($rule_format, '#ACTION', 'SOURCE', 'DEST', 'PROTO', 'DPORT', 'SPORT');
822 foreach my $vmid (sort keys %$rules) {
823 my $inrules = $rules->{$vmid}->{in};
824 my $outrules = $rules->{$vmid}->{out
};
826 if (scalar(@$inrules)) {
827 $out .= "# IN to VM $vmid\n";
828 foreach my $rule (@$inrules) {
829 foreach my $netid (keys %{$netinfo->{$vmid}}) {
830 my $net = $netinfo->{$vmid}->{$netid};
831 next if $rule->{iface
} && $rule->{iface
} ne $netid;
832 $out .= &$generate_input_rule($zoneinfo, $rule, $net, $netid);
837 if (scalar(@$outrules)) {
838 $out .= "# OUT from VM $vmid\n";
839 foreach my $rule (@$outrules) {
840 foreach my $netid (keys %{$netinfo->{$vmid}}) {
841 my $net = $netinfo->{$vmid}->{$netid};
842 next if $rule->{iface
} && $rule->{iface
} ne $netid;
843 $out .= &$generate_output_rule($zoneinfo, $rule, $net, $netid);
849 PVE
::Tools
::file_set_contents
("$targetdir/rules", $out);
854 my ($filename, $fh, $group) = @_;
858 my $securitygroupexist;
860 my $res = { in => [], out
=> [] };
862 my $macros = get_shorewall_macros
();
863 my $protocols = get_etc_protocols
();
865 while (defined(my $line = <$fh>)) {
866 next if $line =~ m/^#/;
867 next if $line =~ m/^\s*$/;
869 if ($line =~ m/^\[(in|out)(:(\S+))?\]\s*$/i) {
871 $securitygroup = lc($3) if $3;
872 $securitygroupexist = 1 if $securitygroup && $securitygroup eq $group;
876 next if $group && $securitygroup ne $group;
878 my ($action, $iface, $source, $dest, $proto, $dport, $sport) =
882 warn "skip incomplete line\n";
887 if ($action =~ m/^(ACCEPT|DROP|REJECT|GROUP-(\S+))$/) {
889 } elsif ($action =~ m/^(\S+)\((ACCEPT|DROP|REJECT)\)$/) {
890 ($service, $action) = ($1, $2);
891 if (!$macros->{$service}) {
892 warn "unknown service '$service'\n";
896 warn "unknown action '$action'\n";
900 $iface = undef if $iface && $iface eq '-';
901 if ($iface && $iface !~ m/^(net0|net1|net2|net3|net4|net5)$/) {
902 warn "unknown interface '$iface'\n";
906 $proto = undef if $proto && $proto eq '-';
907 if ($proto && !(defined($protocols->{byname
}->{$proto}) ||
908 defined($protocols->{byid
}->{$proto}))) {
909 warn "unknown protokol '$proto'\n";
913 $source = undef if $source && $source eq '-';
914 $dest = undef if $dest && $dest eq '-';
916 $dport = undef if $dport && $dport eq '-';
917 $sport = undef if $sport && $sport eq '-';
920 my $nbsource = undef;
924 $nbsource = parse_address_list
($source) if $source;
925 $nbdest = parse_address_list
($dest) if $dest;
926 $nbdport = parse_port_name_number_or_range
($dport) if $dport;
927 $nbsport = parse_port_name_number_or_range
($sport) if $sport;
942 nbsource
=> $nbsource,
952 push @{$res->{$section}}, $rule;
955 die "security group $group don't exist" if $group && !$securitygroupexist;
959 sub read_local_vm_config
{
965 my $list = PVE
::QemuServer
::config_list
();
967 foreach my $vmid (keys %$list) {
968 #next if !($vmid eq '100' || $vmid eq '102');
969 my $cfspath = PVE
::QemuServer
::cfs_config_path
($vmid);
970 if (my $conf = PVE
::Cluster
::cfs_read_file
($cfspath)) {
971 $qemu->{$vmid} = $conf;
975 my $vmdata = { openvz
=> $openvz, qemu
=> $qemu };
980 sub read_vm_firewall_rules
{
983 foreach my $vmid (keys %{$vmdata->{qemu
}}, keys %{$vmdata->{openvz
}}) {
984 my $filename = "/etc/pve/firewall/$vmid.fw";
985 my $fh = IO
::File-
>new($filename, O_RDONLY
);
988 $rules->{$vmid} = parse_fw_rules
($filename, $fh);
996 my $vmdata = read_local_vm_config
();
997 my $rules = read_vm_firewall_rules
($vmdata);
999 # print Dumper($vmdata);
1001 my $swdir = '/etc/shorewall';
1004 &$compile_shorewall($swdir, $vmdata, $rules);
1006 PVE
::Tools
::run_command
(['shorewall', 'compile']);
1009 sub compile_and_start
{
1014 PVE
::Tools
::run_command
(['shorewall', $restart ?
'restart' : 'start']);