9 use PVE
::Exception
qw(raise raise_param_exc);
10 use PVE
::JSONSchema
qw(register_standard_option get_standard_option);
13 use PVE
::Tools
qw($IPV4RE);
18 use PVE
::Tools
qw(run_command lock_file dir_glob_foreach);
21 my $hostfw_conf_filename = "/etc/pve/local/host.fw";
22 my $clusterfw_conf_filename = "/etc/pve/firewall/cluster.fw";
24 # dynamically include PVE::QemuServer and PVE::OpenVZ
25 # to avoid dependency problems
28 require PVE
::QemuServer
;
29 $have_qemu_server = 1;
35 $have_pve_manager = 1;
38 PVE
::JSONSchema
::register_format
('IPv4orCIDR', \
&pve_verify_ipv4_or_cidr
);
39 sub pve_verify_ipv4_or_cidr
{
40 my ($cidr, $noerr) = @_;
42 if ($cidr =~ m!^(?:$IPV4RE)(/(\d+))?$!) {
43 return $cidr if Net
::IP-
>new($cidr);
44 return undef if $noerr;
45 die Net
::IP
::Error
() . "\n";
47 return undef if $noerr;
48 die "value does not look like a valid IP address or CIDR network\n";
51 PVE
::JSONSchema
::register_standard_option
('ipset-name', {
52 description
=> "IP set name.",
54 pattern
=> '[A-Za-z][A-Za-z0-9\-\_]+',
59 PVE
::JSONSchema
::register_standard_option
('pve-fw-alias', {
60 description
=> "Alias name.",
62 pattern
=> '[A-Za-z][A-Za-z0-9\-\_]+',
67 PVE
::JSONSchema
::register_standard_option
('pve-fw-loglevel' => {
68 description
=> "Log level.",
70 enum
=> ['emerg', 'alert', 'crit', 'err', 'warning', 'notice', 'info', 'debug', 'nolog'],
74 my $security_group_name_pattern = '[A-Za-z][A-Za-z0-9\-\_]+';
75 my $ip_alias_pattern = '[A-Za-z][A-Za-z0-9\-\_]+';
77 PVE
::JSONSchema
::register_standard_option
('pve-security-group-name', {
78 description
=> "Security Group name.",
80 pattern
=> $security_group_name_pattern,
85 my $feature_ipset_nomatch = 0;
87 my (undef, undef, $release) = POSIX
::uname
();
88 if ($release =~ m/^(\d+)\.(\d+)\.\d+-/) {
89 my ($major, $minor) = ($1, $2);
90 $feature_ipset_nomatch = 1 if ($major > 3) ||
91 ($major == 3 && $minor >= 7);
98 my $nodename = PVE
::INotify
::nodename
();
100 my $pve_fw_lock_filename = "/var/lock/pvefw.lck";
102 my $default_log_level = 'nolog'; # avoid logs by default
104 my $log_level_hash = {
115 # imported/converted from: /usr/share/shorewall/macro.*
116 my $pve_fw_macros = {
119 { action
=> 'PARAM', proto
=> 'udp', dport
=> '10080' },
120 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '10080' },
123 "Auth (identd) traffic",
124 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '113' },
127 "Border Gateway Protocol traffic",
128 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '179' },
131 "BitTorrent traffic for BitTorrent 3.1 and earlier",
132 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '6881:6889' },
133 { action
=> 'PARAM', proto
=> 'udp', dport
=> '6881' },
136 "BitTorrent traffic for BitTorrent 3.2 and later",
137 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '6881:6999' },
138 { action
=> 'PARAM', proto
=> 'udp', dport
=> '6881' },
141 "Concurrent Versions System pserver traffic",
142 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '2401' },
145 "Citrix/ICA traffic (ICA, ICA Browser, CGP)",
146 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '1494' },
147 { action
=> 'PARAM', proto
=> 'udp', dport
=> '1604' },
148 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '2598' },
151 "Digital Audio Access Protocol traffic (iTunes, Rythmbox daemons)",
152 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '3689' },
153 { action
=> 'PARAM', proto
=> 'udp', dport
=> '3689' },
156 "Distributed Checksum Clearinghouse spam filtering mechanism",
157 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '6277' },
160 "Forwarded DHCP traffic",
161 { action
=> 'PARAM', proto
=> 'udp', dport
=> '67:68', sport
=> '67:68' },
164 "Domain Name System traffic (upd and tcp)",
165 { action
=> 'PARAM', proto
=> 'udp', dport
=> '53' },
166 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '53' },
169 "Distributed Compiler service",
170 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '3632' },
173 "File Transfer Protocol",
174 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '21' },
177 "Finger protocol (RFC 742)",
178 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '79' },
181 "GNUnet secure peer-to-peer networking traffic",
182 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '2086' },
183 { action
=> 'PARAM', proto
=> 'udp', dport
=> '2086' },
184 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '1080' },
185 { action
=> 'PARAM', proto
=> 'udp', dport
=> '1080' },
188 "Generic Routing Encapsulation tunneling protocol",
189 { action
=> 'PARAM', proto
=> '47' },
192 "Git distributed revision control traffic",
193 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '9418' },
196 "OpenPGP HTTP keyserver protocol traffic",
197 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '11371' },
200 "Hypertext Transfer Protocol (WWW)",
201 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '80' },
204 "Hypertext Transfer Protocol (WWW) over SSL",
205 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '443' },
208 "Internet Cache Protocol V2 (Squid) traffic",
209 { action
=> 'PARAM', proto
=> 'udp', dport
=> '3130' },
212 "AOL Instant Messenger traffic",
213 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '5190' },
216 "Internet Message Access Protocol",
217 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '143' },
220 "Internet Message Access Protocol over SSL",
221 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '993' },
224 "IPIP capsulation traffic",
225 { action
=> 'PARAM', proto
=> '94' },
229 { action
=> 'PARAM', proto
=> 'udp', dport
=> '500', sport
=> '500' },
230 { action
=> 'PARAM', proto
=> '50' },
233 "IPsec authentication (AH) traffic",
234 { action
=> 'PARAM', proto
=> 'udp', dport
=> '500', sport
=> '500' },
235 { action
=> 'PARAM', proto
=> '51' },
238 "IPsec traffic and Nat-Traversal",
239 { action
=> 'PARAM', proto
=> 'udp', dport
=> '500' },
240 { action
=> 'PARAM', proto
=> 'udp', dport
=> '4500' },
241 { action
=> 'PARAM', proto
=> '50' },
244 "Internet Relay Chat traffic",
245 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '6667' },
248 "HP Jetdirect printing",
249 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '9100' },
252 "Layer 2 Tunneling Protocol traffic",
253 { action
=> 'PARAM', proto
=> 'udp', dport
=> '1701' },
256 "Lightweight Directory Access Protocol traffic",
257 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '389' },
260 "Secure Lightweight Directory Access Protocol traffic",
261 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '636' },
264 "Microsoft Notification Protocol",
265 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '1863' },
268 "Microsoft SQL Server",
269 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '1433' },
272 "Mail traffic (SMTP, SMTPS, Submission)",
273 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '25' },
274 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '465' },
275 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '587' },
278 "Munin networked resource monitoring traffic",
279 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '4949' },
283 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '3306' },
286 "NNTP traffic (Usenet).",
287 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '119' },
290 "Encrypted NNTP traffic (Usenet)",
291 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '563' },
294 "Network Time Protocol (ntpd)",
295 { action
=> 'PARAM', proto
=> 'udp', dport
=> '123' },
298 "OSPF multicast traffic",
299 { action
=> 'PARAM', proto
=> '89' },
303 { action
=> 'PARAM', proto
=> 'udp', dport
=> '1194' },
306 "Symantec PCAnywere (tm)",
307 { action
=> 'PARAM', proto
=> 'udp', dport
=> '5632' },
308 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '5631' },
312 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '110' },
315 "Encrypted POP3 traffic",
316 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '995' },
319 "Point-to-Point Tunneling Protocol",
320 { action
=> 'PARAM', proto
=> '47' },
321 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '1723' },
325 { action
=> 'PARAM', proto
=> 'icmp', dport
=> 'echo-request' },
329 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '5432' },
332 "Line Printer protocol printing",
333 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '515' },
336 "Microsoft Remote Desktop Protocol traffic",
337 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '3389' },
340 "Routing Information Protocol (bidirectional)",
341 { action
=> 'PARAM', proto
=> 'udp', dport
=> '520' },
344 "BIND remote management protocol",
345 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '953' },
348 "Razor Antispam System",
349 { action
=> 'ACCEPT', proto
=> 'tcp', dport
=> '2703' },
352 "Remote time retrieval (rdate)",
353 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '37' },
357 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '873' },
360 "SANE network scanning",
361 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '6566' },
364 "Microsoft SMB traffic",
365 { action
=> 'PARAM', proto
=> 'udp', dport
=> '135,445' },
366 { action
=> 'PARAM', proto
=> 'udp', dport
=> '137:139' },
367 { action
=> 'PARAM', proto
=> 'udp', dport
=> '1024:65535', sport
=> '137' },
368 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '135,139,445' },
371 "Samba Web Administration Tool",
372 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '901' },
375 "Simple Mail Transfer Protocol",
376 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '25' },
379 "Encrypted Simple Mail Transfer Protocol",
380 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '465' },
383 "Simple Network Management Protocol",
384 { action
=> 'PARAM', proto
=> 'udp', dport
=> '161:162' },
385 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '161' },
388 "Spam Assassin SPAMD traffic",
389 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '783' },
392 "Secure shell traffic",
393 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '22' },
396 "Subversion server (svnserve)",
397 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '3690' },
400 "SixXS IPv6 Deployment and Tunnel Broker",
401 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '3874' },
402 { action
=> 'PARAM', proto
=> 'udp', dport
=> '3740' },
403 { action
=> 'PARAM', proto
=> '41' },
404 { action
=> 'PARAM', proto
=> 'udp', dport
=> '5072,8374' },
407 "Squid web proxy traffic",
408 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '3128' },
411 "Mail message submission traffic",
412 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '587' },
415 "Syslog protocol (RFC 5424) traffic",
416 { action
=> 'PARAM', proto
=> 'udp', dport
=> '514' },
417 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '514' },
420 "Trivial File Transfer Protocol traffic",
421 { action
=> 'PARAM', proto
=> 'udp', dport
=> '69' },
425 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '23' },
429 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '992' },
432 "RFC 868 Time protocol",
433 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '37' },
436 "Traceroute (for up to 30 hops) traffic",
437 { action
=> 'PARAM', proto
=> 'udp', dport
=> '33434:33524' },
438 { action
=> 'PARAM', proto
=> 'icmp', dport
=> 'echo-request' },
441 "VNC traffic for VNC display's 0 - 99",
442 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '5900:5999' },
445 "VNC traffic from Vncservers to Vncviewers in listen mode",
446 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '5500' },
449 "WWW traffic (HTTP and HTTPS)",
450 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '80' },
451 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '443' },
454 "Web Cache/Proxy traffic (port 8080)",
455 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '8080' },
459 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '10000' },
462 "Whois (nicname, RFC 3912) traffic",
463 { action
=> 'PARAM', proto
=> 'tcp', dport
=> '43' },
467 my $pve_fw_parsed_macros;
468 my $pve_fw_macro_descr;
469 my $pve_fw_preferred_macro_names = {};
471 my $pve_std_chains = {
472 'PVEFW-SET-ACCEPT-MARK' => [
473 "-j MARK --set-mark 1",
475 'PVEFW-DropBroadcast' => [
476 # same as shorewall 'Broadcast'
477 # simply DROP BROADCAST/MULTICAST/ANYCAST
478 # we can use this to reduce logging
479 { action
=> 'DROP', dsttype
=> 'BROADCAST' },
480 { action
=> 'DROP', dsttype
=> 'MULTICAST' },
481 { action
=> 'DROP', dsttype
=> 'ANYCAST' },
482 { action
=> 'DROP', dest
=> '224.0.0.0/4' },
485 # same as shorewall 'reject'
486 { action
=> 'DROP', dsttype
=> 'BROADCAST' },
487 { action
=> 'DROP', source
=> '224.0.0.0/4' },
488 { action
=> 'DROP', proto
=> 'icmp' },
489 "-p tcp -j REJECT --reject-with tcp-reset",
490 "-p udp -j REJECT --reject-with icmp-port-unreachable",
491 "-p icmp -j REJECT --reject-with icmp-host-unreachable",
492 "-j REJECT --reject-with icmp-host-prohibited",
495 # same as shorewall 'Drop', which is equal to DROP,
496 # but REJECT/DROP some packages to reduce logging,
497 # and ACCEPT critical ICMP types
498 { action
=> 'PVEFW-reject', proto
=> 'tcp', dport
=> '43' }, # REJECT 'auth'
499 # we are not interested in BROADCAST/MULTICAST/ANYCAST
500 { action
=> 'PVEFW-DropBroadcast' },
501 # ACCEPT critical ICMP types
502 { action
=> 'ACCEPT', proto
=> 'icmp', dport
=> 'fragmentation-needed' },
503 { action
=> 'ACCEPT', proto
=> 'icmp', dport
=> 'time-exceeded' },
504 # Drop packets with INVALID state
505 "-m conntrack --ctstate INVALID -j DROP",
506 # Drop Microsoft SMB noise
507 { action
=> 'DROP', proto
=> 'udp', dport
=> '135,445', nbdport
=> 2 },
508 { action
=> 'DROP', proto
=> 'udp', dport
=> '137:139'},
509 { action
=> 'DROP', proto
=> 'udp', dport
=> '1024:65535', sport
=> 137 },
510 { action
=> 'DROP', proto
=> 'tcp', dport
=> '135,139,445', nbdport
=> 3 },
511 { action
=> 'DROP', proto
=> 'udp', dport
=> 1900 }, # UPnP
512 # Drop new/NotSyn traffic so that it doesn't get logged
513 "-p tcp -m tcp ! --tcp-flags FIN,SYN,RST,ACK SYN -j DROP",
515 { action
=> 'DROP', proto
=> 'udp', sport
=> 53 },
518 # same as shorewall 'Reject', which is equal to Reject,
519 # but REJECT/DROP some packages to reduce logging,
520 # and ACCEPT critical ICMP types
521 { action
=> 'PVEFW-reject', proto
=> 'tcp', dport
=> '43' }, # REJECT 'auth'
522 # we are not interested in BROADCAST/MULTICAST/ANYCAST
523 { action
=> 'PVEFW-DropBroadcast' },
524 # ACCEPT critical ICMP types
525 { action
=> 'ACCEPT', proto
=> 'icmp', dport
=> 'fragmentation-needed' },
526 { action
=> 'ACCEPT', proto
=> 'icmp', dport
=> 'time-exceeded' },
527 # Drop packets with INVALID state
528 "-m conntrack --ctstate INVALID -j DROP",
529 # Drop Microsoft SMB noise
530 { action
=> 'PVEFW-reject', proto
=> 'udp', dport
=> '135,445', nbdport
=> 2 },
531 { action
=> 'PVEFW-reject', proto
=> 'udp', dport
=> '137:139'},
532 { action
=> 'PVEFW-reject', proto
=> 'udp', dport
=> '1024:65535', sport
=> 137 },
533 { action
=> 'PVEFW-reject', proto
=> 'tcp', dport
=> '135,139,445', nbdport
=> 3 },
534 { action
=> 'DROP', proto
=> 'udp', dport
=> 1900 }, # UPnP
535 # Drop new/NotSyn traffic so that it doesn't get logged
536 "-p tcp -m tcp ! --tcp-flags FIN,SYN,RST,ACK SYN -j DROP",
538 { action
=> 'DROP', proto
=> 'udp', sport
=> 53 },
540 'PVEFW-tcpflags' => [
541 # same as shorewall tcpflags action.
542 # Packets arriving on this interface are checked for som illegal combinations of TCP flags
543 "-p tcp -m tcp --tcp-flags FIN,SYN,RST,PSH,ACK,URG FIN,PSH,URG -g PVEFW-logflags",
544 "-p tcp -m tcp --tcp-flags FIN,SYN,RST,PSH,ACK,URG NONE -g PVEFW-logflags",
545 "-p tcp -m tcp --tcp-flags SYN,RST SYN,RST -g PVEFW-logflags",
546 "-p tcp -m tcp --tcp-flags FIN,SYN FIN,SYN -g PVEFW-logflags",
547 "-p tcp -m tcp --sport 0 --tcp-flags FIN,SYN,RST,ACK SYN -g PVEFW-logflags",
550 # same as shorewall smurfs action
551 # Filter packets for smurfs (packets with a broadcast address as the source).
552 "-s 0.0.0.0/32 -j RETURN",
553 "-m addrtype --src-type BROADCAST -g PVEFW-smurflog",
554 "-s 224.0.0.0/4 -g PVEFW-smurflog",
558 # iptables -p icmp -h
559 my $icmp_type_names = {
562 'destination-unreachable' => 1,
563 'network-unreachable' => 1,
564 'host-unreachable' => 1,
565 'protocol-unreachable' => 1,
566 'port-unreachable' => 1,
567 'fragmentation-needed' => 1,
568 'source-route-failed' => 1,
569 'network-unknown' => 1,
571 'network-prohibited' => 1,
572 'host-prohibited' => 1,
573 'TOS-network-unreachable' => 1,
574 'TOS-host-unreachable' => 1,
575 'communication-prohibited' => 1,
576 'host-precedence-violation' => 1,
577 'precedence-cutoff' => 1,
578 'source-quench' => 1,
580 'network-redirect' => 1,
581 'host-redirect' => 1,
582 'TOS-network-redirect' => 1,
583 'TOS-host-redirect' => 1,
585 'router-advertisement' => 1,
586 'router-solicitation' => 1,
587 'time-exceeded' => 1,
588 'ttl-zero-during-transit' => 1,
589 'ttl-zero-during-reassembly' => 1,
590 'parameter-problem' => 1,
591 'ip-header-bad' => 1,
592 'required-option-missing' => 1,
593 'timestamp-request' => 1,
594 'timestamp-reply' => 1,
595 'address-mask-request' => 1,
596 'address-mask-reply' => 1,
599 sub init_firewall_macros
{
601 $pve_fw_parsed_macros = {};
603 foreach my $k (keys %$pve_fw_macros) {
604 my $lc_name = lc($k);
605 my $macro = $pve_fw_macros->{$k};
606 if (!ref($macro->[0])) {
607 $pve_fw_macro_descr->{$k} = shift @$macro;
609 $pve_fw_preferred_macro_names->{$lc_name} = $k;
610 $pve_fw_parsed_macros->{$k} = $macro;
614 init_firewall_macros
();
617 return wantarray ?
($pve_fw_parsed_macros, $pve_fw_macro_descr): $pve_fw_parsed_macros;
622 sub get_etc_services
{
624 return $etc_services if $etc_services;
626 my $filename = "/etc/services";
628 my $fh = IO
::File-
>new($filename, O_RDONLY
);
630 warn "unable to read '$filename' - $!\n";
636 while (my $line = <$fh>) {
638 next if $line =~m/^#/;
639 next if ($line =~m/^\s*$/);
641 if ($line =~ m!^(\S+)\s+(\S+)/(tcp|udp).*$!) {
642 $services->{byid
}->{$2}->{name
} = $1;
643 $services->{byid
}->{$2}->{port
} = $2;
644 $services->{byid
}->{$2}->{$3} = 1;
645 $services->{byname
}->{$1} = $services->{byid
}->{$2};
651 $etc_services = $services;
654 return $etc_services;
659 sub get_etc_protocols
{
660 return $etc_protocols if $etc_protocols;
662 my $filename = "/etc/protocols";
664 my $fh = IO
::File-
>new($filename, O_RDONLY
);
666 warn "unable to read '$filename' - $!\n";
672 while (my $line = <$fh>) {
674 next if $line =~m/^#/;
675 next if ($line =~m/^\s*$/);
677 if ($line =~ m!^(\S+)\s+(\d+)\s+.*$!) {
678 $protocols->{byid
}->{$2}->{name
} = $1;
679 $protocols->{byname
}->{$1} = $protocols->{byid
}->{$2};
685 $etc_protocols = $protocols;
687 return $etc_protocols;
690 my $ipv4_mask_hash_localnet = {
692 '255.255.128.0' => 17,
693 '255.255.192.0' => 18,
694 '255.255.224.0' => 19,
695 '255.255.240.0' => 20,
696 '255.255.248.0' => 21,
697 '255.255.252.0' => 22,
698 '255.255.254.0' => 23,
699 '255.255.255.0' => 24,
700 '255.255.255.128' => 25,
701 '255.255.255.192' => 26,
702 '255.255.255.224' => 27,
703 '255.255.255.240' => 28,
704 '255.255.255.248' => 29,
705 '255.255.255.252' => 30,
711 my ($new_value) = @_;
713 $__local_network = $new_value if defined($new_value);
715 return $__local_network if defined($__local_network);
718 my $nodename = PVE
::INotify
::nodename
();
720 my $ip = PVE
::Cluster
::remote_node_ip
($nodename);
722 my $testip = Net
::IP-
>new($ip);
724 my $routes = PVE
::ProcFSTools
::read_proc_net_route
();
725 foreach my $entry (@$routes) {
726 my $mask = $ipv4_mask_hash_localnet->{$entry->{mask
}};
727 next if !defined($mask);
728 return if $mask eq '0.0.0.0';
729 my $cidr = "$entry->{dest}/$mask";
730 my $testnet = Net
::IP-
>new($cidr);
731 if ($testnet->overlaps($testip)) {
732 $__local_network = $cidr;
739 return $__local_network;
742 sub parse_address_list
{
745 return if $str =~ m/^(\+)(\S+)$/; # ipset ref
746 return if $str =~ m/^${ip_alias_pattern}$/;
750 foreach my $elem (split(/,/, $str)) {
752 if (!Net
::IP-
>new($elem)) {
753 my $err = Net
::IP
::Error
();
754 die "invalid IP address: $err\n";
756 $iprange = 1 if $elem =~ m/-/;
759 die "you can use a range in a list\n" if $iprange && $count > 1;
762 sub parse_port_name_number_or_range
{
765 my $services = PVE
::Firewall
::get_etc_services
();
769 foreach my $item (split(/,/, $str)) {
771 if ($item =~ m/^(\d+):(\d+)$/) {
772 my ($port1, $port2) = ($1, $2);
773 die "invalid port '$port1'\n" if $port1 > 65535;
774 die "invalid port '$port2'\n" if $port2 > 65535;
775 } elsif ($item =~ m/^(\d+)$/) {
777 die "invalid port '$port'\n" if $port > 65535;
779 if ($icmp_type_names->{$item}) {
782 die "invalid port '$item'\n" if !$services->{byname
}->{$item};
787 die "ICPM ports not allowed in port range\n" if $icmp_port && $count > 1;
792 PVE
::JSONSchema
::register_format
('pve-fw-port-spec', \
&pve_fw_verify_port_spec
);
793 sub pve_fw_verify_port_spec
{
796 parse_port_name_number_or_range
($portstr);
801 PVE
::JSONSchema
::register_format
('pve-fw-v4addr-spec', \
&pve_fw_verify_v4addr_spec
);
802 sub pve_fw_verify_v4addr_spec
{
805 parse_address_list
($list);
810 PVE
::JSONSchema
::register_format
('pve-fw-protocol-spec', \
&pve_fw_verify_protocol_spec
);
811 sub pve_fw_verify_protocol_spec
{
814 my $protocols = get_etc_protocols
();
816 die "unknown protocol '$proto'\n" if $proto &&
817 !(defined($protocols->{byname
}->{$proto}) ||
818 defined($protocols->{byid
}->{$proto}));
824 # helper function for API
826 sub copy_opject_with_digest
{
829 my $sha = Digest
::SHA-
>new('sha1');
832 foreach my $k (sort keys %$object) {
833 my $v = $object->{$k};
834 next if !defined($v);
836 $sha->add($k, ':', $v, "\n");
839 my $digest = $sha->hexdigest;
841 $res->{digest
} = $digest;
843 return wantarray ?
($res, $digest) : $res;
846 sub copy_list_with_digest
{
849 my $sha = Digest
::SHA-
>new('sha1');
852 foreach my $entry (@$list) {
854 foreach my $k (sort keys %$entry) {
855 my $v = $entry->{$k};
856 next if !defined($v);
858 $sha->add($k, ':', $v, "\n");
863 my $digest = $sha->hexdigest;
865 foreach my $entry (@$res) {
866 $entry->{digest
} = $digest;
869 return wantarray ?
($res, $digest) : $res;
872 my $rule_properties = {
874 description
=> "Update rule at position <pos>.",
879 digest
=> get_standard_option
('pve-config-digest'),
883 enum
=> ['in', 'out', 'group'],
886 description
=> "Rule action ('ACCEPT', 'DROP', 'REJECT') or security group name.",
889 pattern
=> $security_group_name_pattern,
898 iface
=> get_standard_option
('pve-iface', { optional
=> 1 }),
900 type
=> 'string', format
=> 'pve-fw-v4addr-spec',
904 type
=> 'string', format
=> 'pve-fw-v4addr-spec',
908 type
=> 'string', format
=> 'pve-fw-protocol-spec',
916 type
=> 'string', format
=> 'pve-fw-port-spec',
921 type
=> 'string', format
=> 'pve-fw-port-spec',
931 sub add_rule_properties
{
932 my ($properties) = @_;
934 foreach my $k (keys %$rule_properties) {
935 my $h = $rule_properties->{$k};
936 # copy data, so that we can modify later without side effects
937 foreach my $opt (keys %$h) { $properties->{$k}->{$opt} = $h->{$opt}; }
943 sub delete_rule_properties
{
944 my ($rule, $delete_str) = @_;
946 foreach my $opt (PVE
::Tools
::split_list
($delete_str)) {
947 raise_param_exc
({ 'delete' => "no such property ('$opt')"})
948 if !defined($rule_properties->{$opt});
949 raise_param_exc
({ 'delete' => "unable to delete required property '$opt'"})
950 if $opt eq 'type' || $opt eq 'action';
951 delete $rule->{$opt};
957 my $apply_macro = sub {
958 my ($macro_name, $param, $verify) = @_;
960 my $macro_rules = $pve_fw_parsed_macros->{$macro_name};
961 die "unknown macro '$macro_name'\n" if !$macro_rules; # should not happen
965 foreach my $templ (@$macro_rules) {
968 foreach my $k (keys %$templ) {
969 my $v = $templ->{$k};
972 $param_used->{$k} = 1;
973 } elsif ($v eq 'DEST') {
975 $param_used->{dest
} = 1;
976 } elsif ($v eq 'SOURCE') {
977 $v = $param->{source
};
978 $param_used->{source
} = 1;
982 my $msg = "missing parameter '$k' in macro '$macro_name'";
983 raise_param_exc
({ macro => $msg }) if $verify;
988 foreach my $k (keys %$param) {
989 next if $k eq 'macro';
990 next if !defined($param->{$k});
991 next if $param_used->{$k};
992 if (defined($rule->{$k})) {
993 if ($rule->{$k} ne $param->{$k}) {
994 my $msg = "parameter '$k' already define in macro (value = '$rule->{$k}')";
995 raise_param_exc
({ $k => $msg }) if $verify;
999 $rule->{$k} = $param->{$k};
1002 push @$rules, $rule;
1009 my ($rule, $allow_groups) = @_;
1011 my $type = $rule->{type
};
1013 raise_param_exc
({ type
=> "missing property"}) if !$type;
1014 raise_param_exc
({ action
=> "missing property"}) if !$rule->{action
};
1016 if ($type eq 'in' || $type eq 'out') {
1017 raise_param_exc
({ action
=> "unknown action '$rule->{action}'"})
1018 if $rule->{action
} !~ m/^(ACCEPT|DROP|REJECT)$/;
1019 } elsif ($type eq 'group') {
1020 raise_param_exc
({ type
=> "security groups not allowed"})
1022 raise_param_exc
({ action
=> "invalid characters in security group name"})
1023 if $rule->{action
} !~ m/^${security_group_name_pattern}$/;
1025 raise_param_exc
({ type
=> "unknown rule type '$type'"});
1028 if ($rule->{iface
}) {
1029 eval { PVE
::JSONSchema
::pve_verify_iface
($rule->{iface
}); };
1030 raise_param_exc
({ iface
=> $@ }) if $@;
1033 if ($rule->{macro}) {
1034 my $preferred_name = $pve_fw_preferred_macro_names->{lc($rule->{macro})};
1035 raise_param_exc
({ macro => "unknown macro '$rule->{macro}'"}) if !$preferred_name;
1036 $rule->{macro} = $preferred_name;
1039 if ($rule->{dport
}) {
1040 eval { parse_port_name_number_or_range
($rule->{dport
}); };
1041 raise_param_exc
({ dport
=> $@ }) if $@;
1044 if ($rule->{sport
}) {
1045 eval { parse_port_name_number_or_range
($rule->{sport
}); };
1046 raise_param_exc
({ sport
=> $@ }) if $@;
1049 if ($rule->{source
}) {
1050 eval { parse_address_list
($rule->{source
}); };
1051 raise_param_exc
({ source
=> $@ }) if $@;
1054 if ($rule->{dest
}) {
1055 eval { parse_address_list
($rule->{dest
}); };
1056 raise_param_exc
({ dest
=> $@ }) if $@;
1059 if ($rule->{macro}) {
1060 &$apply_macro($rule->{macro}, $rule, 1);
1066 sub copy_rule_data
{
1067 my ($rule, $param) = @_;
1069 foreach my $k (keys %$rule_properties) {
1070 if (defined(my $v = $param->{$k})) {
1071 if ($v eq '' || $v eq '-') {
1087 my $bridge_firewall_enabled = 0;
1089 sub enable_bridge_firewall
{
1091 return if $bridge_firewall_enabled; # only once
1093 PVE
::ProcFSTools
::write_proc_entry
("/proc/sys/net/bridge/bridge-nf-call-iptables", "1");
1094 PVE
::ProcFSTools
::write_proc_entry
("/proc/sys/net/bridge/bridge-nf-call-ip6tables", "1");
1096 # make sure syncookies are enabled (which is default on newer 3.X kernels anyways)
1097 PVE
::ProcFSTools
::write_proc_entry
("/proc/sys/net/ipv4/tcp_syncookies", "1");
1099 $bridge_firewall_enabled = 1;
1102 my $rule_format = "%-15s %-30s %-30s %-15s %-15s %-15s\n";
1104 sub iptables_restore_cmdlist
{
1107 run_command
("/sbin/iptables-restore -n", input
=> $cmdlist);
1110 sub ipset_restore_cmdlist
{
1113 run_command
("/usr/sbin/ipset restore", input
=> $cmdlist);
1116 sub iptables_get_chains
{
1120 # check what chains we want to track
1121 my $is_pvefw_chain = sub {
1124 return 1 if $name =~ m/^PVEFW-\S+$/;
1126 return 1 if $name =~ m/^tap\d+i\d+-(:?IN|OUT)$/;
1128 return 1 if $name =~ m/^veth\d+.\d+-(:?IN|OUT)$/; # fixme: dev name is configurable
1130 return 1 if $name =~ m/^venet0-\d+-(:?IN|OUT)$/;
1132 return 1 if $name =~ m/^fwbr\d+(v\d+)?-(:?FW|IN|OUT|IPS)$/;
1133 return 1 if $name =~ m/^GROUP-(:?[^\s\-]+)-(:?IN|OUT)$/;
1145 return if $line =~ m/^#/;
1146 return if $line =~ m/^\s*$/;
1148 if ($line =~ m/^\*(\S+)$/) {
1153 return if $table ne 'filter';
1155 if ($line =~ m/^:(\S+)\s/) {
1157 return if !&$is_pvefw_chain($chain);
1158 $res->{$chain} = "unknown";
1159 } elsif ($line =~ m/^-A\s+(\S+)\s.*--comment\s+\"PVESIG:(\S+)\"/) {
1160 my ($chain, $sig) = ($1, $2);
1161 return if !&$is_pvefw_chain($chain);
1162 $res->{$chain} = $sig;
1163 } elsif ($line =~ m/^-A\s+(INPUT|OUTPUT|FORWARD)\s+-j\s+PVEFW-\1$/) {
1166 # simply ignore the rest
1171 run_command
("/sbin/iptables-save", outfunc
=> $parser);
1173 return wantarray ?
($res, $hooks) : $res;
1176 sub iptables_chain_digest
{
1178 my $digest = Digest
::SHA-
>new('sha1');
1179 foreach my $rule (@$rules) { # order is important
1180 $digest->add($rule);
1182 return $digest->b64digest;
1185 sub ipset_chain_digest
{
1188 my $digest = Digest
::SHA-
>new('sha1');
1189 foreach my $rule (sort @$rules) { # note: sorted
1190 $digest->add($rule);
1192 return $digest->b64digest;
1195 sub ipset_get_chains
{
1203 return if $line =~ m/^#/;
1204 return if $line =~ m/^\s*$/;
1205 if ($line =~ m/^(?:\S+)\s(PVEFW-\S+)\s(?:\S+).*/) {
1207 $line =~ s/\s+$//; # delete trailing white space
1208 push @{$chains->{$chain}}, $line;
1210 # simply ignore the rest
1215 run_command
("/usr/sbin/ipset save", outfunc
=> $parser);
1217 # compute digest for each chain
1218 foreach my $chain (keys %$chains) {
1219 $res->{$chain} = ipset_chain_digest
($chains->{$chain});
1225 sub ruleset_generate_cmdstr
{
1226 my ($ruleset, $chain, $rule, $actions, $goto, $cluster_conf) = @_;
1228 return if defined($rule->{enable
}) && !$rule->{enable
};
1230 die "unable to emit macro - internal error" if $rule->{macro}; # should not happen
1232 my $nbdport = defined($rule->{dport
}) ? parse_port_name_number_or_range
($rule->{dport
}) : 0;
1233 my $nbsport = defined($rule->{sport
}) ? parse_port_name_number_or_range
($rule->{sport
}) : 0;
1237 push @cmd, "-i $rule->{iface_in}" if $rule->{iface_in
};
1238 push @cmd, "-o $rule->{iface_out}" if $rule->{iface_out
};
1240 my $source = $rule->{source
};
1241 my $dest = $rule->{dest
};
1244 if ($source =~ m/^\+/) {
1245 if ($source =~ m/^\+(${security_group_name_pattern})$/) {
1246 die "no such ipset '$1'\n" if !$cluster_conf->{ipset
}->{$1};
1247 push @cmd, "-m set --match-set PVEFW-$1 src";
1249 die "invalid security group name '$source'\n";
1251 } elsif ($source =~ m/^${ip_alias_pattern}$/){
1252 my $alias = lc($source);
1253 my $e = $cluster_conf->{aliases
}->{$alias};
1254 die "no such alias $source\n" if !$e;
1255 push @cmd, "-s $e->{cidr}";
1256 } elsif ($source =~ m/\-/){
1257 push @cmd, "-m iprange --src-range $source";
1260 push @cmd, "-s $source";
1265 if ($dest =~ m/^\+/) {
1266 if ($dest =~ m/^\+(${security_group_name_pattern})$/) {
1267 die "no such ipset '$1'\n" if !$cluster_conf->{ipset
}->{$1};
1268 push @cmd, "-m set --match-set PVEFW-$1 dst";
1270 die "invalid security group name '$dest'\n";
1272 } elsif ($dest =~ m/^${ip_alias_pattern}$/){
1273 my $alias = lc($dest);
1274 my $e = $cluster_conf->{aliases
}->{$alias};
1275 die "no such alias $dest" if !$e;
1276 push @cmd, "-d $e->{cidr}";
1277 } elsif ($dest =~ m/^(\d+)\.(\d+).(\d+).(\d+)\-(\d+)\.(\d+).(\d+).(\d+)$/){
1278 push @cmd, "-m iprange --dst-range $dest";
1281 push @cmd, "-d $dest";
1285 if ($rule->{proto
}) {
1286 push @cmd, "-p $rule->{proto}";
1289 $multiport++ if $nbdport > 1;
1290 $multiport++ if $nbsport > 1;
1292 push @cmd, "--match multiport" if $multiport;
1294 die "multiport: option '--sports' cannot be used together with '--dports'\n"
1295 if ($multiport == 2) && ($rule->{dport
} ne $rule->{sport
});
1297 if ($rule->{dport
}) {
1298 if ($rule->{proto
} && $rule->{proto
} eq 'icmp') {
1299 # Note: we use dport to store --icmp-type
1300 die "unknown icmp-type '$rule->{dport}'\n" if !defined($icmp_type_names->{$rule->{dport
}});
1301 push @cmd, "-m icmp --icmp-type $rule->{dport}";
1304 if ($multiport == 2) {
1305 push @cmd, "--ports $rule->{dport}";
1307 push @cmd, "--dports $rule->{dport}";
1310 push @cmd, "--dport $rule->{dport}";
1315 if ($rule->{sport
}) {
1317 push @cmd, "--sports $rule->{sport}" if $multiport != 2;
1319 push @cmd, "--sport $rule->{sport}";
1322 } elsif ($rule->{dport
} || $rule->{sport
}) {
1323 die "destination port '$rule->{dport}', but no protocol specified\n" if $rule->{dport
};
1324 die "source port '$rule->{sport}', but no protocol specified\n" if $rule->{sport
};
1327 push @cmd, "-m addrtype --dst-type $rule->{dsttype}" if $rule->{dsttype
};
1329 if (my $action = $rule->{action
}) {
1330 $action = $actions->{$action} if defined($actions->{$action});
1331 $goto = 1 if !defined($goto) && $action eq 'PVEFW-SET-ACCEPT-MARK';
1332 push @cmd, $goto ?
"-g $action" : "-j $action";
1335 return scalar(@cmd) ?
join(' ', @cmd) : undef;
1338 sub ruleset_generate_rule
{
1339 my ($ruleset, $chain, $rule, $actions, $goto, $cluster_conf) = @_;
1343 if ($rule->{macro}) {
1344 $rules = &$apply_macro($rule->{macro}, $rule);
1349 # update all or nothing
1352 foreach my $tmp (@$rules) {
1353 if (my $cmdstr = ruleset_generate_cmdstr
($ruleset, $chain, $tmp, $actions, $goto, $cluster_conf)) {
1354 push @cmds, $cmdstr;
1358 foreach my $cmdstr (@cmds) {
1359 ruleset_addrule
($ruleset, $chain, $cmdstr);
1363 sub ruleset_generate_rule_insert
{
1364 my ($ruleset, $chain, $rule, $actions, $goto) = @_;
1366 die "implement me" if $rule->{macro}; # not implemented, because not needed so far
1368 if (my $cmdstr = ruleset_generate_cmdstr
($ruleset, $chain, $rule, $actions, $goto)) {
1369 ruleset_insertrule
($ruleset, $chain, $cmdstr);
1373 sub ruleset_create_chain
{
1374 my ($ruleset, $chain) = @_;
1376 die "Invalid chain name '$chain' (28 char max)\n" if length($chain) > 28;
1377 die "chain name may not contain collons\n" if $chain =~ m/:/; # because of log format
1379 die "chain '$chain' already exists\n" if $ruleset->{$chain};
1381 $ruleset->{$chain} = [];
1384 sub ruleset_chain_exist
{
1385 my ($ruleset, $chain) = @_;
1387 return $ruleset->{$chain} ?
1 : undef;
1390 sub ruleset_addrule
{
1391 my ($ruleset, $chain, $rule) = @_;
1393 die "no such chain '$chain'\n" if !$ruleset->{$chain};
1395 push @{$ruleset->{$chain}}, "-A $chain $rule";
1398 sub ruleset_insertrule
{
1399 my ($ruleset, $chain, $rule) = @_;
1401 die "no such chain '$chain'\n" if !$ruleset->{$chain};
1403 unshift @{$ruleset->{$chain}}, "-A $chain $rule";
1406 sub get_log_rule_base
{
1407 my ($chain, $vmid, $msg, $loglevel) = @_;
1409 die "internal error - no log level" if !defined($loglevel);
1411 $vmid = 0 if !defined($vmid);
1413 # Note: we use special format for prefix to pass further
1414 # info to log daemon (VMID, LOGVELEL and CHAIN)
1416 return "-j NFLOG --nflog-prefix \":$vmid:$loglevel:$chain: $msg\"";
1419 sub ruleset_addlog {
1420 my ($ruleset, $chain, $vmid, $msg, $loglevel, $rule) = @_;
1422 return if !defined($loglevel);
1424 my $logrule = get_log_rule_base($chain, $vmid, $msg, $loglevel);
1426 $logrule = "$rule $logrule" if defined($rule);
1428 ruleset_addrule($ruleset, $chain, $logrule);
1431 sub ruleset_add_chain_policy {
1432 my ($ruleset, $chain, $vmid, $policy, $loglevel, $accept_action) = @_;
1434 if ($policy eq 'ACCEPT') {
1436 ruleset_generate_rule($ruleset, $chain, { action => 'ACCEPT' },
1437 { ACCEPT => $accept_action});
1439 } elsif ($policy eq 'DROP') {
1441 ruleset_addrule($ruleset, $chain, "-j PVEFW-Drop
");
1443 ruleset_addlog($ruleset, $chain, $vmid, "policy
$policy: ", $loglevel);
1445 ruleset_addrule($ruleset, $chain, "-j DROP
");
1446 } elsif ($policy eq 'REJECT') {
1447 ruleset_addrule($ruleset, $chain, "-j PVEFW-Reject
");
1449 ruleset_addlog($ruleset, $chain, $vmid, "policy
$policy: ", $loglevel);
1451 ruleset_addrule($ruleset, $chain, "-g PVEFW-reject
");
1454 die "internal error
: unknown policy
'$policy'";
1458 sub ruleset_chain_add_conn_filters {
1459 my ($ruleset, $chain, $accept) = @_;
1461 ruleset_addrule($ruleset, $chain, "-m conntrack
--ctstate INVALID
-j DROP
");
1462 ruleset_addrule($ruleset, $chain, "-m conntrack
--ctstate RELATED
,ESTABLISHED
-j
$accept");
1465 sub ruleset_chain_add_input_filters {
1466 my ($ruleset, $chain, $options, $cluster_conf, $loglevel) = @_;
1468 if ($cluster_conf->{ipset}->{blacklist}){
1469 ruleset_addlog($ruleset, $chain, 0, "DROP
: ", $loglevel, "-m set
--match-set PVEFW-blacklist src
");
1470 ruleset_addrule($ruleset, $chain, "-m set
--match-set PVEFW-blacklist src
-j DROP
");
1473 if (!(defined($options->{nosmurfs}) && $options->{nosmurfs} == 0)) {
1474 ruleset_addrule($ruleset, $chain, "-m conntrack
--ctstate INVALID
,NEW
-j PVEFW-smurfs
");
1477 if ($options->{tcpflags}) {
1478 ruleset_addrule($ruleset, $chain, "-p tcp
-j PVEFW-tcpflags
");
1482 sub ruleset_create_vm_chain {
1483 my ($ruleset, $chain, $options, $macaddr, $direction) = @_;
1485 ruleset_create_chain($ruleset, $chain);
1486 my $accept = generate_nfqueue($options);
1488 if (!(defined($options->{dhcp}) && $options->{dhcp} == 0)) {
1489 if ($direction eq 'OUT') {
1490 ruleset_generate_rule($ruleset, $chain, { action => 'PVEFW-SET-ACCEPT-MARK',
1491 proto => 'udp', sport => 68, dport => 67 });
1493 ruleset_generate_rule($ruleset, $chain, { action => 'ACCEPT',
1494 proto => 'udp', sport => 67, dport => 68 });
1498 if ($direction eq 'OUT') {
1499 if (defined($macaddr) && !(defined($options->{macfilter}) && $options->{macfilter} == 0)) {
1500 ruleset_addrule($ruleset, $chain, "-m mac
! --mac-source
$macaddr -j DROP
");
1502 ruleset_addrule($ruleset, $chain, "-j MARK
--set-mark
0"); # clear mark
1506 sub ruleset_add_group_rule {
1507 my ($ruleset, $cluster_conf, $chain, $rule, $direction, $action) = @_;
1509 my $group = $rule->{action};
1510 my $group_chain = "GROUP-
$group-$direction";
1511 if(!ruleset_chain_exist($ruleset, $group_chain)){
1512 generate_group_rules($ruleset, $cluster_conf, $group);
1515 if ($direction eq 'OUT' && $rule->{iface_out}) {
1516 ruleset_addrule($ruleset, $chain, "-o
$rule->{iface_out
} -j
$group_chain");
1517 } elsif ($direction eq 'IN' && $rule->{iface_in}) {
1518 ruleset_addrule($ruleset, $chain, "-i
$rule->{iface_in
} -j
$group_chain");
1520 ruleset_addrule($ruleset, $chain, "-j
$group_chain");
1523 ruleset_addrule($ruleset, $chain, "-m mark
--mark
1 -j
$action");
1526 sub ruleset_generate_vm_rules {
1527 my ($ruleset, $rules, $cluster_conf, $chain, $netid, $direction, $options) = @_;
1529 my $lc_direction = lc($direction);
1531 my $in_accept = generate_nfqueue($options);
1533 foreach my $rule (@$rules) {
1534 next if $rule->{iface} && $rule->{iface} ne $netid;
1535 next if !$rule->{enable};
1536 if ($rule->{type} eq 'group') {
1537 ruleset_add_group_rule($ruleset, $cluster_conf, $chain, $rule, $direction,
1538 $direction eq 'OUT' ? 'RETURN' : $in_accept);
1540 next if $rule->{type} ne $lc_direction;
1542 if ($direction eq 'OUT') {
1543 ruleset_generate_rule($ruleset, $chain, $rule,
1544 { ACCEPT => "PVEFW-SET-ACCEPT-MARK
", REJECT => "PVEFW-reject
" },
1545 undef, $cluster_conf);
1547 ruleset_generate_rule($ruleset, $chain, $rule,
1548 { ACCEPT => $in_accept , REJECT => "PVEFW-reject
" },
1549 undef, $cluster_conf);
1557 sub generate_nfqueue {
1560 if ($options->{ips}) {
1561 my $action = "NFQUEUE
";
1562 if ($options->{ips_queues} && $options->{ips_queues} =~ m/^(\d+)(:(\d+))?$/) {
1563 if (defined($3) && defined($1)) {
1564 $action .= " --queue-balance
$1:$3";
1565 } elsif (defined($1)) {
1566 $action .= " --queue-num
$1";
1569 $action .= " --queue-bypass
" if $feature_ipset_nomatch; #need kernel 3.10
1576 sub ruleset_generate_vm_ipsrules {
1577 my ($ruleset, $options, $direction, $iface) = @_;
1579 if ($options->{ips} && $direction eq 'IN') {
1580 my $nfqueue = generate_nfqueue($options);
1582 if (!ruleset_chain_exist($ruleset, "PVEFW-IPS
")) {
1583 ruleset_create_chain($ruleset, "PVEFW-IPS
");
1586 ruleset_addrule($ruleset, "PVEFW-IPS
", "-m physdev
--physdev-out
$iface --physdev-is-bridged
-j
$nfqueue");
1590 sub generate_venet_rules_direction {
1591 my ($ruleset, $cluster_conf, $vmfw_conf, $vmid, $ip, $direction) = @_;
1593 my $lc_direction = lc($direction);
1595 my $rules = $vmfw_conf->{rules};
1597 my $options = $vmfw_conf->{options};
1598 my $loglevel = get_option_log_level($options, "log_level_
${lc_direction
}");
1600 my $chain = "venet0-
$vmid-$direction";
1602 ruleset_create_vm_chain($ruleset, $chain, $options, undef, $direction);
1604 ruleset_generate_vm_rules($ruleset, $rules, $cluster_conf, $chain, 'venet', $direction);
1609 if ($direction eq 'OUT') {
1610 $policy = $options->{policy_out} || 'ACCEPT'; # allow everything by default
1612 $policy = $options->{policy_in} || 'DROP'; # allow nothing by default
1615 my $accept = generate_nfqueue($options);
1616 my $accept_action = $direction eq 'OUT' ? "PVEFW-SET-ACCEPT-MARK
" : $accept;
1617 ruleset_add_chain_policy($ruleset, $chain, $vmid, $policy, $loglevel, $accept_action);
1619 if ($direction eq 'OUT') {
1620 ruleset_generate_rule_insert($ruleset, "PVEFW-VENET-OUT
", {
1623 iface_in => 'venet0'});
1625 ruleset_generate_rule($ruleset, "PVEFW-VENET-IN
", {
1628 iface_out => 'venet0'});
1632 sub generate_tap_rules_direction {
1633 my ($ruleset, $cluster_conf, $iface, $netid, $macaddr, $vmfw_conf, $vmid, $direction) = @_;
1635 my $lc_direction = lc($direction);
1637 my $rules = $vmfw_conf->{rules};
1639 my $options = $vmfw_conf->{options};
1640 my $loglevel = get_option_log_level($options, "log_level_
${lc_direction
}");
1642 my $tapchain = "$iface-$direction";
1644 ruleset_create_vm_chain($ruleset, $tapchain, $options, $macaddr, $direction);
1646 ruleset_generate_vm_rules($ruleset, $rules, $cluster_conf, $tapchain, $netid, $direction, $options);
1648 ruleset_generate_vm_ipsrules($ruleset, $options, $direction, $iface);
1653 if ($direction eq 'OUT') {
1654 $policy = $options->{policy_out} || 'ACCEPT'; # allow everything by default
1656 $policy = $options->{policy_in} || 'DROP'; # allow nothing by default
1659 my $accept = generate_nfqueue($options);
1660 my $accept_action = $direction eq 'OUT' ? "PVEFW-SET-ACCEPT-MARK
" : $accept;
1661 ruleset_add_chain_policy($ruleset, $tapchain, $vmid, $policy, $loglevel, $accept_action);
1663 # plug the tap chain to bridge chain
1664 if ($direction eq 'IN') {
1665 ruleset_addrule($ruleset, "PVEFW-FWBR-IN
",
1666 "-m physdev
--physdev-is-bridged
--physdev-out
$iface -j
$tapchain");
1668 ruleset_addrule($ruleset, "PVEFW-FWBR-OUT
",
1669 "-m physdev
--physdev-is-bridged
--physdev-in
$iface -j
$tapchain");
1673 sub enable_host_firewall {
1674 my ($ruleset, $hostfw_conf, $cluster_conf) = @_;
1676 my $options = $hostfw_conf->{options};
1677 my $cluster_options = $cluster_conf->{options};
1678 my $rules = $hostfw_conf->{rules};
1679 my $cluster_rules = $cluster_conf->{rules};
1681 # host inbound firewall
1682 my $chain = "PVEFW-HOST-IN
";
1683 ruleset_create_chain($ruleset, $chain);
1685 my $loglevel = get_option_log_level($options, "log_level_in
");
1687 ruleset_addrule($ruleset, $chain, "-i lo
-j ACCEPT
");
1689 ruleset_chain_add_conn_filters($ruleset, $chain, 'ACCEPT');
1690 ruleset_chain_add_input_filters($ruleset, $chain, $options, $cluster_conf, $loglevel);
1692 # we use RETURN because we need to check also tap rules
1693 my $accept_action = 'RETURN';
1695 ruleset_addrule($ruleset, $chain, "-p igmp
-j
$accept_action"); # important for multicast
1697 # add host rules first, so that cluster wide rules can be overwritten
1698 foreach my $rule (@$rules, @$cluster_rules) {
1699 $rule->{iface_in} = $rule->{iface} if $rule->{iface};
1701 if ($rule->{type} eq 'group') {
1702 ruleset_add_group_rule($ruleset, $cluster_conf, $chain, $rule, 'IN', $accept_action);
1703 } elsif ($rule->{type} eq 'in') {
1704 ruleset_generate_rule($ruleset, $chain, $rule, { ACCEPT => $accept_action, REJECT => "PVEFW-reject
" },
1705 undef, $cluster_conf);
1709 delete $rule->{iface_in};
1712 # allow standard traffic for management ipset (includes cluster network)
1713 my $mngmntsrc = "-m set
--match-set PVEFW-management src
";
1714 ruleset_addrule($ruleset, $chain, "$mngmntsrc -p tcp
--dport
8006 -j
$accept_action"); # PVE API
1715 ruleset_addrule($ruleset, $chain, "$mngmntsrc -p tcp
--dport
5900:5999 -j
$accept_action"); # PVE VNC Console
1716 ruleset_addrule($ruleset, $chain, "$mngmntsrc -p tcp
--dport
3128 -j
$accept_action"); # SPICE Proxy
1717 ruleset_addrule($ruleset, $chain, "$mngmntsrc -p tcp
--dport
22 -j
$accept_action"); # SSH
1719 my $localnet = local_network();
1723 my $corosync_rule = "-p udp
--dport
5404:5405 -j
$accept_action";
1724 ruleset_addrule($ruleset, $chain, "-s
$localnet -d
$localnet $corosync_rule");
1725 ruleset_addrule($ruleset, $chain, "-s
$localnet -m addrtype
--dst-type MULTICAST
$corosync_rule");
1728 # implement input policy
1729 my $policy = $cluster_options->{policy_in} || 'DROP'; # allow nothing by default
1730 ruleset_add_chain_policy($ruleset, $chain, 0, $policy, $loglevel, $accept_action);
1732 # host outbound firewall
1733 $chain = "PVEFW-HOST-OUT
";
1734 ruleset_create_chain($ruleset, $chain);
1736 $loglevel = get_option_log_level($options, "log_level_out
");
1738 ruleset_addrule($ruleset, $chain, "-o lo
-j ACCEPT
");
1740 ruleset_chain_add_conn_filters($ruleset, $chain, 'ACCEPT');
1742 # we use RETURN because we may want to check other thigs later
1743 $accept_action = 'RETURN';
1745 ruleset_addrule($ruleset, $chain, "-p igmp
-j
$accept_action"); # important for multicast
1747 # add host rules first, so that cluster wide rules can be overwritten
1748 foreach my $rule (@$rules, @$cluster_rules) {
1749 $rule->{iface_out} = $rule->{iface} if $rule->{iface};
1751 if ($rule->{type} eq 'group') {
1752 ruleset_add_group_rule($ruleset, $cluster_conf, $chain, $rule, 'OUT', $accept_action);
1753 } elsif ($rule->{type} eq 'out') {
1754 ruleset_generate_rule($ruleset, $chain, $rule, { ACCEPT => $accept_action, REJECT => "PVEFW-reject
" },
1755 undef, $cluster_conf);
1759 delete $rule->{iface_out};
1762 # allow standard traffic on cluster network
1764 ruleset_addrule($ruleset, $chain, "-d
$localnet -p tcp
--dport
8006 -j
$accept_action"); # PVE API
1765 ruleset_addrule($ruleset, $chain, "-d
$localnet -p tcp
--dport
22 -j
$accept_action"); # SSH
1766 ruleset_addrule($ruleset, $chain, "-d
$localnet -p tcp
--dport
5900:5999 -j
$accept_action"); # PVE VNC Console
1767 ruleset_addrule($ruleset, $chain, "-d
$localnet -p tcp
--dport
3128 -j
$accept_action"); # SPICE Proxy
1769 my $corosync_rule = "-p udp
--dport
5404:5405 -j
$accept_action";
1770 ruleset_addrule($ruleset, $chain, "-d
$localnet $corosync_rule");
1771 ruleset_addrule($ruleset, $chain, "-m addrtype
--dst-type MULTICAST
$corosync_rule");
1774 # implement output policy
1775 $policy = $cluster_options->{policy_out} || 'ACCEPT'; # allow everything by default
1776 ruleset_add_chain_policy($ruleset, $chain, 0, $policy, $loglevel, $accept_action);
1778 ruleset_addrule($ruleset, "PVEFW-OUTPUT
", "-j PVEFW-HOST-OUT
");
1779 ruleset_addrule($ruleset, "PVEFW-INPUT
", "-j PVEFW-HOST-IN
");
1782 sub generate_group_rules {
1783 my ($ruleset, $cluster_conf, $group) = @_;
1785 my $rules = $cluster_conf->{groups}->{$group};
1788 warn "no such security group
'$group'\n";
1789 $rules = []; # create empty chain
1792 my $chain = "GROUP-
${group
}-IN
";
1794 ruleset_create_chain($ruleset, $chain);
1795 ruleset_addrule($ruleset, $chain, "-j MARK
--set-mark
0"); # clear mark
1797 foreach my $rule (@$rules) {
1798 next if $rule->{type} ne 'in';
1799 ruleset_generate_rule($ruleset, $chain, $rule, { ACCEPT => "PVEFW-SET-ACCEPT-MARK
", REJECT => "PVEFW-reject
" }, undef, $cluster_conf);
1802 $chain = "GROUP-
${group
}-OUT
";
1804 ruleset_create_chain($ruleset, $chain);
1805 ruleset_addrule($ruleset, $chain, "-j MARK
--set-mark
0"); # clear mark
1807 foreach my $rule (@$rules) {
1808 next if $rule->{type} ne 'out';
1809 # we use PVEFW-SET-ACCEPT-MARK (Instead of ACCEPT) because we need to
1810 # check also other tap rules later
1811 ruleset_generate_rule($ruleset, $chain, $rule,
1812 { ACCEPT => 'PVEFW-SET-ACCEPT-MARK', REJECT => "PVEFW-reject
" }, undef, $cluster_conf);
1817 my $valid_netdev_names = {};
1818 for (my $i = 0; $i < $MAX_NETS; $i++) {
1819 $valid_netdev_names->{"net
$i"} = 1;
1823 my ($line, $allow_iface, $allow_groups) = @_;
1825 my ($type, $action, $macro, $iface, $source, $dest, $proto, $dport, $sport);
1829 # we can add single line comments to the end of the rule
1830 my $comment = decode('utf8', $1) if $line =~ s/#\s*(.*?)\s*$//;
1832 # we can disable a rule when prefixed with '|'
1835 $enable = 0 if $line =~ s/^\|//;
1837 $line =~ s/^(\S+)\s+(\S+)\s*// ||
1838 die "unable to parse rule
: $line\n";
1843 if ($type eq 'in' || $type eq 'out') {
1844 if ($action =~ m/^(ACCEPT|DROP|REJECT)$/) {
1846 } elsif ($action =~ m/^(\S+)\((ACCEPT|DROP|REJECT)\)$/) {
1848 my $preferred_name = $pve_fw_preferred_macro_names->{lc($1)};
1849 die "unknown
macro '$1'\n" if !$preferred_name;
1850 $macro = $preferred_name;
1852 die "unknown action
'$action'\n";
1854 } elsif ($type eq 'group') {
1855 die "groups disabled
\n" if !$allow_groups;
1856 die "invalid characters
in group name
\n" if $action !~ m/^${security_group_name_pattern}$/;
1858 die "unknown rule type
'$type'\n";
1861 while (length($line)) {
1862 if ($line =~ s/^-i (\S+)\s*//) {
1863 die "parameter
-i
not allowed
\n" if !$allow_iface;
1865 PVE::JSONSchema::pve_verify_iface($iface);
1869 last if $type eq 'group';
1871 if ($line =~ s/^-p (\S+)\s*//) {
1873 pve_fw_verify_protocol_spec($proto);
1876 if ($line =~ s/^-dport (\S+)\s*//) {
1878 parse_port_name_number_or_range($dport);
1881 if ($line =~ s/^-sport (\S+)\s*//) {
1883 parse_port_name_number_or_range($sport);
1886 if ($line =~ s/^-source (\S+)\s*//) {
1888 parse_address_list($source);
1891 if ($line =~ s/^-dest (\S+)\s*//) {
1893 parse_address_list($dest);
1900 die "unable to parse rule parameters
: $line\n" if length($line);
1905 comment => $comment,
1917 sub parse_vmfw_option {
1922 my $loglevels = "emerg
|alert
|crit
|err
|warning
|notice
|info
|debug
|nolog
";
1924 if ($line =~ m/^(enable|dhcp|macfilter|ips):\s*(0|1)\s*$/i) {
1927 } elsif ($line =~ m/^(log_level_in|log_level_out):\s*(($loglevels)\s*)?$/i) {
1929 $value = $2 ? lc($3) : '';
1930 } elsif ($line =~ m/^(policy_(in|out)):\s*(ACCEPT|DROP|REJECT)\s*$/i) {
1933 } elsif ($line =~ m/^(ips_queues):\s*((\d+)(:(\d+))?)\s*$/i) {
1938 die "can
't parse option '$line'\n"
1941 return ($opt, $value);
1944 sub parse_hostfw_option {
1949 my $loglevels = "emerg|alert|crit|err|warning|notice|info|debug|nolog";
1951 if ($line =~ m/^(enable|nosmurfs|tcpflags):\s*(0|1)\s*$/i) {
1954 } elsif ($line =~ m/^(log_level_in|log_level_out|tcp_flags_log_level|smurf_log_level):\s*(($loglevels)\s*)?$/i) {
1956 $value = $2 ? lc($3) : '';
1957 } elsif ($line =~ m/^(nf_conntrack_max|nf_conntrack_tcp_timeout_established):\s*(\d+)\s*$/i) {
1962 die "can't parse option
'$line'\n"
1965 return ($opt, $value);
1968 sub parse_clusterfw_option {
1973 if ($line =~ m/^(enable):\s*(0|1)\s*$/i) {
1976 } elsif ($line =~ m/^(policy_(in|out)):\s*(ACCEPT|DROP|REJECT)\s*$/i) {
1981 die "can
't parse option '$line'\n"
1984 return ($opt, $value);
1990 # we can add single line comments to the end of the line
1991 my $comment = decode('utf8
', $1) if $line =~ s/\s*#\s*(.*?)\s*$//;
1993 if ($line =~ m/^(\S+)\s(\S+)$/) {
1994 my ($name, $cidr) = ($1, $2);
1996 pve_verify_ipv4_or_cidr($cidr);
2001 $data->{comment} = $comment if $comment;
2008 sub parse_vm_fw_rules {
2009 my ($filename, $fh) = @_;
2019 while (defined(my $line = <$fh>)) {
2020 next if $line =~ m/^#/;
2021 next if $line =~ m/^\s*$/;
2023 my $linenr = $fh->input_line_number();
2024 my $prefix = "$filename (line $linenr)";
2026 if ($line =~ m/^\[(\S+)\]\s*$/i) {
2028 warn "$prefix: ignore unknown section '$section'\n" if !$res->{$section};
2032 warn "$prefix: skip line - no section";
2036 next if !$res->{$section}; # skip undefined section
2038 if ($section eq 'options
') {
2040 my ($opt, $value) = parse_vmfw_option($line);
2041 $res->{options}->{$opt} = $value;
2043 warn "$prefix: $@" if $@;
2047 if ($section eq 'aliases
') {
2049 my $data = parse_alias($line);
2050 $res->{aliases}->{lc($data->{name})} = $data;
2052 warn "$prefix: $@" if $@;
2057 eval { $rule = parse_fw_rule($line, 1, 1); };
2059 warn "$prefix: $err";
2063 push @{$res->{$section}}, $rule;
2069 sub parse_host_fw_rules {
2070 my ($filename, $fh) = @_;
2072 my $res = { rules => [], options => {}};
2076 while (defined(my $line = <$fh>)) {
2077 next if $line =~ m/^#/;
2078 next if $line =~ m/^\s*$/;
2080 my $linenr = $fh->input_line_number();
2081 my $prefix = "$filename (line $linenr)";
2083 if ($line =~ m/^\[(\S+)\]\s*$/i) {
2085 warn "$prefix: ignore unknown section '$section'\n" if !$res->{$section};
2089 warn "$prefix: skip line - no section";
2093 next if !$res->{$section}; # skip undefined section
2095 if ($section eq 'options
') {
2097 my ($opt, $value) = parse_hostfw_option($line);
2098 $res->{options}->{$opt} = $value;
2100 warn "$prefix: $@" if $@;
2105 eval { $rule = parse_fw_rule($line, 1, 1); };
2107 warn "$prefix: $err";
2111 push @{$res->{$section}}, $rule;
2117 sub parse_cluster_fw_rules {
2118 my ($filename, $fh) = @_;
2128 group_comments => {},
2130 ipset_comments => {},
2133 while (defined(my $line = <$fh>)) {
2134 next if $line =~ m/^#/;
2135 next if $line =~ m/^\s*$/;
2137 my $linenr = $fh->input_line_number();
2138 my $prefix = "$filename (line $linenr)";
2140 if ($line =~ m/^\[options\]$/i) {
2141 $section = 'options
';
2145 if ($line =~ m/^\[aliases\]$/i) {
2146 $section = 'aliases
';
2150 if ($line =~ m/^\[group\s+(\S+)\]\s*(?:#\s*(.*?)\s*)?$/i) {
2151 $section = 'groups
';
2154 $res->{$section}->{$group} = [];
2155 $res->{group_comments}->{$group} = decode('utf8
', $comment)
2160 if ($line =~ m/^\[rules\]$/i) {
2165 if ($line =~ m/^\[ipset\s+(\S+)\]\s*(?:#\s*(.*?)\s*)?$/i) {
2169 $res->{$section}->{$group} = [];
2170 $res->{ipset_comments}->{$group} = decode('utf8
', $comment)
2176 warn "$prefix: skip line - no section\n";
2180 if ($section eq 'options
') {
2182 my ($opt, $value) = parse_clusterfw_option($line);
2183 $res->{options}->{$opt} = $value;
2185 warn "$prefix: $@" if $@;
2186 } elsif ($section eq 'aliases
') {
2188 my $data = parse_alias($line);
2189 $res->{aliases}->{lc($data->{name})} = $data;
2191 warn "$prefix: $@" if $@;
2192 } elsif ($section eq 'rules
') {
2194 eval { $rule = parse_fw_rule($line, 1, 1); };
2196 warn "$prefix: $err";
2199 push @{$res->{$section}}, $rule;
2200 } elsif ($section eq 'groups
') {
2202 eval { $rule = parse_fw_rule($line, 0, 0); };
2204 warn "$prefix: $err";
2207 push @{$res->{$section}->{$group}}, $rule;
2208 } elsif ($section eq 'ipset
') {
2209 # we can add single line comments to the end of the rule
2210 my $comment = decode('utf8
', $1) if $line =~ s/#\s*(.*?)\s*$//;
2212 $line =~ m/^(\!)?\s*(\S+)\s*$/;
2216 if($cidr !~ m/^${ip_alias_pattern}$/) {
2219 eval { pve_verify_ipv4_or_cidr($cidr); };
2221 warn "$prefix: $cidr - $err";
2226 my $entry = { cidr => $cidr };
2227 $entry->{nomatch} = 1 if $nomatch;
2228 $entry->{comment} = $comment if $comment;
2230 push @{$res->{$section}->{$group}}, $entry;
2238 my ($code, @param) = @_;
2242 my $res = lock_file($pve_fw_lock_filename, $timeout, $code, @param);
2249 sub read_local_vm_config {
2254 my $vmdata = { openvz => $openvz, qemu => $qemu };
2256 my $vmlist = PVE::Cluster::get_vmlist();
2257 return $vmdata if !$vmlist || !$vmlist->{ids};
2258 my $ids = $vmlist->{ids};
2260 foreach my $vmid (keys %$ids) {
2261 next if !$vmid; # skip VE0
2262 my $d = $ids->{$vmid};
2263 next if !$d->{node} || $d->{node} ne $nodename;
2264 next if !$d->{type};
2265 if ($d->{type} eq 'openvz
') {
2266 if ($have_pve_manager) {
2267 my $cfspath = PVE::OpenVZ::cfs_config_path($vmid);
2268 if (my $conf = PVE::Cluster::cfs_read_file($cfspath)) {
2269 $openvz->{$vmid} = $conf;
2272 } elsif ($d->{type} eq 'qemu
') {
2273 if ($have_qemu_server) {
2274 my $cfspath = PVE::QemuServer::cfs_config_path($vmid);
2275 if (my $conf = PVE::Cluster::cfs_read_file($cfspath)) {
2276 $qemu->{$vmid} = $conf;
2285 sub load_vmfw_conf {
2286 my ($vmid, $dir) = @_;
2290 $dir = "/etc/pve/firewall" if !defined($dir);
2292 my $filename = "$dir/$vmid.fw";
2293 if (my $fh = IO::File->new($filename, O_RDONLY)) {
2294 $vmfw_conf = parse_vm_fw_rules($filename, $fh);
2300 my $format_rules = sub {
2301 my ($rules, $allow_iface) = @_;
2305 foreach my $rule (@$rules) {
2306 if ($rule->{type} eq 'in' || $rule->{type} eq 'out
' || $rule->{type} eq 'group
') {
2307 $raw .= '|' if defined($rule->{enable}) && !$rule->{enable};
2308 $raw .= uc($rule->{type});
2309 if ($rule->{macro}) {
2310 $raw .= " $rule->{macro}($rule->{action})";
2312 $raw .= " " . $rule->{action};
2314 if ($allow_iface && $rule->{iface}) {
2315 $raw .= " -i $rule->{iface}";
2318 if ($rule->{type} ne 'group
') {
2319 $raw .= " -source $rule->{source}" if $rule->{source};
2320 $raw .= " -dest $rule->{dest}" if $rule->{dest};
2321 $raw .= " -p $rule->{proto}" if $rule->{proto};
2322 $raw .= " -dport $rule->{dport}" if $rule->{dport};
2323 $raw .= " -sport $rule->{sport}" if $rule->{sport};
2326 $raw .= " # " . encode('utf8
', $rule->{comment})
2327 if $rule->{comment} && $rule->{comment} !~ m/^\s*$/;
2330 die "unknown rule type '$rule->{type
}'";
2337 my $format_options = sub {
2342 $raw .= "[OPTIONS]\n\n";
2343 foreach my $opt (keys %$options) {
2344 $raw .= "$opt: $options->{$opt}\n";
2351 my $format_aliases = sub {
2356 $raw .= "[ALIASES]\n\n";
2357 foreach my $k (keys %$aliases) {
2358 my $e = $aliases->{$k};
2359 $raw .= "$e->{name} $e->{cidr}";
2360 $raw .= " # " . encode('utf8
', $e->{comment})
2361 if $e->{comment} && $e->{comment} !~ m/^\s*$/;
2369 my $format_ipset = sub {
2375 foreach my $entry (@$options) {
2376 $nethash->{$entry->{cidr}} = $entry;
2379 foreach my $cidr (sort keys %$nethash) {
2380 my $entry = $nethash->{$cidr};
2381 my $line = $entry->{nomatch} ? '!' : '';
2382 $line .= $entry->{cidr};
2383 $line .= " # " . encode('utf8
', $entry->{comment})
2384 if $entry->{comment} && $entry->{comment} !~ m/^\s*$/;
2391 sub save_vmfw_conf {
2392 my ($vmid, $vmfw_conf) = @_;
2396 my $options = $vmfw_conf->{options};
2397 $raw .= &$format_options($options) if scalar(keys %$options);
2399 my $aliases = $vmfw_conf->{aliases};
2400 $raw .= &$format_aliases($aliases) if scalar(keys %$aliases);
2402 my $rules = $vmfw_conf->{rules} || [];
2403 if (scalar(@$rules)) {
2404 $raw .= "[RULES]\n\n";
2405 $raw .= &$format_rules($rules, 1);
2409 my $filename = "/etc/pve/firewall/$vmid.fw";
2410 PVE::Tools::file_set_contents($filename, $raw);
2413 sub read_vm_firewall_configs {
2414 my ($vmdata, $dir) = @_;
2416 my $vmfw_configs = {};
2418 foreach my $vmid (keys %{$vmdata->{qemu}}, keys %{$vmdata->{openvz}}) {
2419 my $vmfw_conf = load_vmfw_conf($vmid, $dir);
2420 next if !$vmfw_conf->{options}; # skip if file does not exists
2421 $vmfw_configs->{$vmid} = $vmfw_conf;
2424 return $vmfw_configs;
2427 sub get_option_log_level {
2428 my ($options, $k) = @_;
2430 my $v = $options->{$k};
2431 $v = $default_log_level if !defined($v);
2433 return undef if $v eq '' || $v eq 'nolog
';
2435 $v = $log_level_hash->{$v} if defined($log_level_hash->{$v});
2437 return $v if ($v >= 0) && ($v <= 7);
2439 warn "unknown log level ($k = '$v')\n";
2444 sub generate_std_chains {
2445 my ($ruleset, $options) = @_;
2447 my $loglevel = get_option_log_level($options, 'smurf_log_level
');
2449 # same as shorewall smurflog.
2450 my $chain = 'PVEFW-smurflog
';
2451 $pve_std_chains->{$chain} = [];
2453 push @{$pve_std_chains->{$chain}}, get_log_rule_base($chain, 0, "DROP: ", $loglevel) if $loglevel;
2454 push @{$pve_std_chains->{$chain}}, "-j DROP";
2456 # same as shorewall logflags action.
2457 $loglevel = get_option_log_level($options, 'tcp_flags_log_level
');
2458 $chain = 'PVEFW-logflags
';
2459 $pve_std_chains->{$chain} = [];
2461 # fixme: is this correctly logged by pvewf-logger? (ther is no --log-ip-options for NFLOG)
2462 push @{$pve_std_chains->{$chain}}, get_log_rule_base($chain, 0, "DROP: ", $loglevel) if $loglevel;
2463 push @{$pve_std_chains->{$chain}}, "-j DROP";
2465 foreach my $chain (keys %$pve_std_chains) {
2466 ruleset_create_chain($ruleset, $chain);
2467 foreach my $rule (@{$pve_std_chains->{$chain}}) {
2469 ruleset_generate_rule($ruleset, $chain, $rule);
2471 ruleset_addrule($ruleset, $chain, $rule);
2477 sub generate_ipset_chains {
2478 my ($ipset_ruleset, $fw_conf) = @_;
2480 foreach my $ipset (keys %{$fw_conf->{ipset}}) {
2481 generate_ipset($ipset_ruleset, "PVEFW-$ipset", $fw_conf->{ipset}->{$ipset}, $fw_conf->{aliases});
2485 sub generate_ipset {
2486 my ($ipset_ruleset, $name, $options, $aliases) = @_;
2488 my $hashsize = scalar(@$options);
2489 if ($hashsize <= 64) {
2492 $hashsize = round_powerof2($hashsize);
2495 push @{$ipset_ruleset->{$name}}, "create $name hash:net family inet hashsize $hashsize maxelem $hashsize";
2499 foreach my $entry (@$options) {
2500 my $cidr = $entry->{cidr};
2501 if ($cidr =~ m/^${ip_alias_pattern}$/) {
2502 my $alias = lc($cidr);
2503 if ($aliases->{$alias}) {
2504 $entry->{cidr} = $aliases->{$alias}->{cidr};
2505 $nethash->{$entry->{cidr}} = $entry;
2507 warn "no such alias '$cidr'\n" if !$aliases->{$alias};
2510 $nethash->{$entry->{cidr}} = $entry;
2514 foreach my $cidr (sort keys %$nethash) {
2515 my $entry = $nethash->{$cidr};
2517 my $cmd = "add $name $cidr";
2518 if ($entry->{nomatch}) {
2519 if ($feature_ipset_nomatch) {
2520 push @{$ipset_ruleset->{$name}}, "$cmd nomatch";
2522 warn "ignore !$cidr - nomatch not supported by kernel\n";
2525 push @{$ipset_ruleset->{$name}}, $cmd;
2530 sub round_powerof2 {
2534 $int |= $int >> $_ foreach (1,2,4,8,16);
2538 sub load_clusterfw_conf {
2539 my ($filename) = @_;
2541 $filename = $clusterfw_conf_filename if !defined($filename);
2543 my $cluster_conf = {};
2544 if (my $fh = IO::File->new($filename, O_RDONLY)) {
2545 $cluster_conf = parse_cluster_fw_rules($filename, $fh);
2548 return $cluster_conf;
2551 sub save_clusterfw_conf {
2552 my ($cluster_conf) = @_;
2556 my $options = $cluster_conf->{options};
2557 $raw .= &$format_options($options) if scalar(keys %$options);
2559 my $aliases = $cluster_conf->{aliases};
2560 $raw .= &$format_aliases($aliases) if scalar(keys %$aliases);
2562 foreach my $ipset (sort keys %{$cluster_conf->{ipset}}) {
2563 if (my $comment = $cluster_conf->{ipset_comments}->{$ipset}) {
2564 my $utf8comment = encode('utf8
', $comment);
2565 $raw .= "[IPSET $ipset] # $utf8comment\n\n";
2567 $raw .= "[IPSET $ipset]\n\n";
2569 my $options = $cluster_conf->{ipset}->{$ipset};
2570 $raw .= &$format_ipset($options);
2574 my $rules = $cluster_conf->{rules};
2575 if (scalar(@$rules)) {
2576 $raw .= "[RULES]\n\n";
2577 $raw .= &$format_rules($rules, 1);
2581 foreach my $group (sort keys %{$cluster_conf->{groups}}) {
2582 my $rules = $cluster_conf->{groups}->{$group};
2583 if (my $comment = $cluster_conf->{group_comments}->{$group}) {
2584 my $utf8comment = encode('utf8
', $comment);
2585 $raw .= "[group $group] # $utf8comment\n\n";
2587 $raw .= "[group $group]\n\n";
2590 $raw .= &$format_rules($rules, 0);
2594 PVE::Tools::file_set_contents($clusterfw_conf_filename, $raw);
2597 sub load_hostfw_conf {
2598 my ($filename) = @_;
2600 $filename = $hostfw_conf_filename if !defined($filename);
2602 my $hostfw_conf = {};
2603 if (my $fh = IO::File->new($filename, O_RDONLY)) {
2604 $hostfw_conf = parse_host_fw_rules($filename, $fh);
2606 return $hostfw_conf;
2609 sub save_hostfw_conf {
2610 my ($hostfw_conf) = @_;
2614 my $options = $hostfw_conf->{options};
2615 $raw .= &$format_options($options) if scalar(keys %$options);
2617 my $rules = $hostfw_conf->{rules};
2618 if (scalar(@$rules)) {
2619 $raw .= "[RULES]\n\n";
2620 $raw .= &$format_rules($rules, 1);
2624 PVE::Tools::file_set_contents($hostfw_conf_filename, $raw);
2628 my ($cluster_conf, $hostfw_conf, $vmdata) = @_;
2632 if ($vmdata) { # test mode
2633 my $testdir = $vmdata->{testdir} || die "no test directory specified";
2634 my $filename = "$testdir/cluster.fw";
2635 $cluster_conf = load_clusterfw_conf($filename);
2637 $filename = "$testdir/host.fw";
2638 $hostfw_conf = load_hostfw_conf($filename);
2640 $vmfw_configs = read_vm_firewall_configs($vmdata, $testdir);
2641 } else { # normal operation
2642 $cluster_conf = load_clusterfw_conf() if !$cluster_conf;
2644 $hostfw_conf = load_hostfw_conf() if !$hostfw_conf;
2646 $vmdata = read_local_vm_config();
2647 $vmfw_configs = read_vm_firewall_configs($vmdata);
2651 $cluster_conf->{ipset}->{venet0} = [];
2654 if ($cluster_conf->{aliases}->{local_network}) {
2655 $localnet = $cluster_conf->{aliases}->{local_network}->{cidr};
2657 $localnet = local_network() || '127.0.0.0/8';
2658 $cluster_conf->{aliases}->{local_network} = { cidr => $localnet };
2661 push @{$cluster_conf->{ipset}->{management}}, { cidr => $localnet };
2665 ruleset_create_chain($ruleset, "PVEFW-INPUT");
2666 ruleset_create_chain($ruleset, "PVEFW-OUTPUT");
2668 ruleset_create_chain($ruleset, "PVEFW-FORWARD");
2670 my $hostfw_options = $hostfw_conf->{options} || {};
2672 # fixme: what log level should we use here?
2673 my $loglevel = get_option_log_level($hostfw_options, "log_level_out");
2675 ruleset_chain_add_conn_filters($ruleset, "PVEFW-FORWARD", "ACCEPT");
2677 ruleset_create_chain($ruleset, "PVEFW-VENET-OUT");
2678 ruleset_addrule($ruleset, "PVEFW-FORWARD", "-i venet0 -m set --match-set PVEFW-venet0 src -j PVEFW-VENET-OUT");
2679 ruleset_addrule($ruleset, "PVEFW-INPUT", "-i venet0 -m set --match-set PVEFW-venet0 src -j PVEFW-VENET-OUT");
2681 ruleset_create_chain($ruleset, "PVEFW-FWBR-IN");
2682 ruleset_chain_add_input_filters($ruleset, "PVEFW-FWBR-IN", $hostfw_options, $cluster_conf, $loglevel);
2684 ruleset_addrule($ruleset, "PVEFW-FORWARD", "-m physdev --physdev-is-bridged --physdev-in fwln+ -j PVEFW-FWBR-IN");
2686 ruleset_create_chain($ruleset, "PVEFW-FWBR-OUT");
2687 ruleset_addrule($ruleset, "PVEFW-FORWARD", "-m physdev --physdev-is-bridged --physdev-out fwln+ -j PVEFW-FWBR-OUT");
2689 ruleset_create_chain($ruleset, "PVEFW-VENET-IN");
2690 ruleset_chain_add_input_filters($ruleset, "PVEFW-VENET-IN", $hostfw_options, $cluster_conf, $loglevel);
2692 ruleset_addrule($ruleset, "PVEFW-FORWARD", "-o venet0 -m set --match-set PVEFW-venet0 dst -j PVEFW-VENET-IN");
2694 generate_std_chains($ruleset, $hostfw_options);
2696 my $hostfw_enable = !(defined($hostfw_options->{enable}) && ($hostfw_options->{enable} == 0));
2698 if ($hostfw_enable) {
2699 eval { enable_host_firewall($ruleset, $hostfw_conf, $cluster_conf); };
2700 warn $@ if $@; # just to be sure - should not happen
2703 ruleset_addrule($ruleset, "PVEFW-OUTPUT", "-o venet0 -m set --match-set PVEFW-venet0 dst -j PVEFW-VENET-IN");
2705 # generate firewall rules for QEMU VMs
2706 foreach my $vmid (keys %{$vmdata->{qemu}}) {
2708 my $conf = $vmdata->{qemu}->{$vmid};
2709 my $vmfw_conf = $vmfw_configs->{$vmid};
2710 return if !$vmfw_conf;
2711 return if !$vmfw_conf->{options}->{enable};
2713 foreach my $netid (keys %$conf) {
2714 next if $netid !~ m/^net(\d+)$/;
2715 my $net = PVE::QemuServer::parse_net($conf->{$netid});
2716 next if !$net->{firewall};
2717 my $iface = "tap${vmid}i$1";
2719 my $macaddr = $net->{macaddr};
2720 generate_tap_rules_direction($ruleset, $cluster_conf, $iface, $netid, $macaddr,
2721 $vmfw_conf, $vmid, 'IN
');
2722 generate_tap_rules_direction($ruleset, $cluster_conf, $iface, $netid, $macaddr,
2723 $vmfw_conf, $vmid, 'OUT
');
2726 warn $@ if $@; # just to be sure - should not happen
2729 # generate firewall rules for OpenVZ containers
2730 foreach my $vmid (keys %{$vmdata->{openvz}}) {
2732 my $conf = $vmdata->{openvz}->{$vmid};
2734 my $vmfw_conf = $vmfw_configs->{$vmid};
2735 return if !$vmfw_conf;
2736 return if !$vmfw_conf->{options}->{enable};
2738 if ($conf->{ip_address} && $conf->{ip_address}->{value}) {
2739 my $ip = $conf->{ip_address}->{value};
2741 parse_address_list($ip); # make sure we have a valid $ip list
2743 my @ips = split(',', $ip);
2745 foreach my $singleip (@ips) {
2746 my $venet0ipset = {};
2747 $venet0ipset->{cidr} = $singleip;
2748 push @{$cluster_conf->{ipset}->{venet0}}, $venet0ipset;
2751 generate_venet_rules_direction($ruleset, $cluster_conf, $vmfw_conf, $vmid, $ip, 'IN
');
2752 generate_venet_rules_direction($ruleset, $cluster_conf, $vmfw_conf, $vmid, $ip, 'OUT
');
2755 if ($conf->{netif} && $conf->{netif}->{value}) {
2756 my $netif = PVE::OpenVZ::parse_netif($conf->{netif}->{value});
2757 foreach my $netid (keys %$netif) {
2758 my $d = $netif->{$netid};
2760 my $macaddr = $d->{mac};
2761 my $iface = $d->{host_ifname};
2762 generate_tap_rules_direction($ruleset, $cluster_conf, $iface, $netid, $macaddr,
2763 $vmfw_conf, $vmid, 'IN
');
2764 generate_tap_rules_direction($ruleset, $cluster_conf, $iface, $netid, $macaddr,
2765 $vmfw_conf, $vmid, 'OUT
');
2769 warn $@ if $@; # just to be sure - should not happen
2772 if(ruleset_chain_exist($ruleset, "PVEFW-IPS")){
2773 ruleset_insertrule($ruleset, "PVEFW-FORWARD", "-m conntrack --ctstate RELATED,ESTABLISHED -j PVEFW-IPS");
2776 my $ipset_ruleset = {};
2777 generate_ipset_chains($ipset_ruleset, $cluster_conf);
2779 return ($ruleset, $ipset_ruleset);
2782 sub get_ruleset_status {
2783 my ($ruleset, $active_chains, $digest_fn, $verbose) = @_;
2785 my $statushash = {};
2787 foreach my $chain (sort keys %$ruleset) {
2788 my $sig = &$digest_fn($ruleset->{$chain});
2790 $statushash->{$chain}->{sig} = $sig;
2792 my $oldsig = $active_chains->{$chain};
2793 if (!defined($oldsig)) {
2794 $statushash->{$chain}->{action} = 'create
';
2796 if ($oldsig eq $sig) {
2797 $statushash->{$chain}->{action} = 'exists';
2799 $statushash->{$chain}->{action} = 'update
';
2802 print "$statushash->{$chain}->{action} $chain ($sig)\n" if $verbose;
2803 foreach my $cmd (@{$ruleset->{$chain}}) {
2804 print "\t$cmd\n" if $verbose;
2808 foreach my $chain (sort keys %$active_chains) {
2809 if (!defined($ruleset->{$chain})) {
2810 my $sig = $active_chains->{$chain};
2811 $statushash->{$chain}->{action} = 'delete';
2812 $statushash->{$chain}->{sig} = $sig;
2813 print "delete $chain ($sig)\n" if $verbose;
2820 sub print_sig_rule {
2821 my ($chain, $sig) = @_;
2823 # We just use this to store a SHA1 checksum used to detect changes
2824 return "-A $chain -m comment --comment \"PVESIG:$sig\"\n";
2827 sub get_ruleset_cmdlist {
2828 my ($ruleset, $verbose) = @_;
2830 my $cmdlist = "*filter\n"; # we pass this to iptables-restore;
2832 my ($active_chains, $hooks) = iptables_get_chains();
2833 my $statushash = get_ruleset_status($ruleset, $active_chains, \&iptables_chain_digest, $verbose);
2835 # create missing chains first
2836 foreach my $chain (sort keys %$ruleset) {
2837 my $stat = $statushash->{$chain};
2838 die "internal error" if !$stat;
2839 next if $stat->{action} ne 'create
';
2841 $cmdlist .= ":$chain - [0:0]\n";
2844 foreach my $h (qw(INPUT OUTPUT FORWARD)) {
2845 if (!$hooks->{$h}) {
2846 $cmdlist .= "-A $h -j PVEFW-$h\n";
2850 foreach my $chain (sort keys %$ruleset) {
2851 my $stat = $statushash->{$chain};
2852 die "internal error" if !$stat;
2854 if ($stat->{action
} eq 'update' || $stat->{action
} eq 'create') {
2855 $cmdlist .= "-F $chain\n";
2856 foreach my $cmd (@{$ruleset->{$chain}}) {
2857 $cmdlist .= "$cmd\n";
2859 $cmdlist .= print_sig_rule
($chain, $stat->{sig
});
2860 } elsif ($stat->{action
} eq 'delete') {
2861 die "internal error"; # this should not happen
2862 } elsif ($stat->{action
} eq 'exists') {
2865 die "internal error - unknown status '$stat->{action}'";
2869 foreach my $chain (keys %$statushash) {
2870 next if $statushash->{$chain}->{action
} ne 'delete';
2871 $cmdlist .= "-F $chain\n";
2873 foreach my $chain (keys %$statushash) {
2874 next if $statushash->{$chain}->{action
} ne 'delete';
2875 next if $chain eq 'PVEFW-INPUT';
2876 next if $chain eq 'PVEFW-OUTPUT';
2877 next if $chain eq 'PVEFW-FORWARD';
2878 $cmdlist .= "-X $chain\n";
2881 my $changes = $cmdlist ne "*filter\n" ?
1 : 0;
2883 $cmdlist .= "COMMIT\n";
2885 return wantarray ?
($cmdlist, $changes) : $cmdlist;
2888 sub get_ipset_cmdlist
{
2889 my ($ruleset, $verbose) = @_;
2893 my $delete_cmdlist = "";
2895 my $active_chains = ipset_get_chains
();
2896 my $statushash = get_ruleset_status
($ruleset, $active_chains, \
&ipset_chain_digest
, $verbose);
2898 # remove stale _swap chains
2899 foreach my $chain (keys %$active_chains) {
2900 if ($chain =~ m/^PVEFW-\S+_swap$/) {
2901 $cmdlist .= "destroy $chain\n";
2905 foreach my $chain (sort keys %$ruleset) {
2906 my $stat = $statushash->{$chain};
2907 die "internal error" if !$stat;
2909 if ($stat->{action
} eq 'create') {
2910 foreach my $cmd (@{$ruleset->{$chain}}) {
2911 $cmdlist .= "$cmd\n";
2915 if ($stat->{action
} eq 'update') {
2916 my $chain_swap = $chain."_swap";
2918 foreach my $cmd (@{$ruleset->{$chain}}) {
2919 $cmd =~ s/$chain/$chain_swap/;
2920 $cmdlist .= "$cmd\n";
2922 $cmdlist .= "swap $chain_swap $chain\n";
2923 $cmdlist .= "flush $chain_swap\n";
2924 $cmdlist .= "destroy $chain_swap\n";
2929 foreach my $chain (keys %$statushash) {
2930 next if $statushash->{$chain}->{action
} ne 'delete';
2932 $delete_cmdlist .= "flush $chain\n";
2933 $delete_cmdlist .= "destroy $chain\n";
2936 my $changes = ($cmdlist || $delete_cmdlist) ?
1 : 0;
2938 return ($cmdlist, $delete_cmdlist, $changes);
2942 my ($ruleset, $hostfw_conf, $ipset_ruleset, $verbose) = @_;
2944 enable_bridge_firewall
();
2946 my ($ipset_create_cmdlist, $ipset_delete_cmdlist, $ipset_changes) =
2947 get_ipset_cmdlist
($ipset_ruleset, undef, $verbose);
2949 my ($cmdlist, $changes) = get_ruleset_cmdlist
($ruleset, $verbose);
2952 if ($ipset_changes) {
2953 print "ipset changes:\n";
2954 print $ipset_create_cmdlist if $ipset_create_cmdlist;
2955 print $ipset_delete_cmdlist if $ipset_delete_cmdlist;
2959 print "iptables changes:\n";
2964 ipset_restore_cmdlist
($ipset_create_cmdlist);
2966 iptables_restore_cmdlist
($cmdlist);
2968 ipset_restore_cmdlist
($ipset_delete_cmdlist) if $ipset_delete_cmdlist;
2970 # test: re-read status and check if everything is up to date
2971 my $active_chains = iptables_get_chains
();
2972 my $statushash = get_ruleset_status
($ruleset, $active_chains, \
&iptables_chain_digest
, 0);
2975 foreach my $chain (sort keys %$ruleset) {
2976 my $stat = $statushash->{$chain};
2977 if ($stat->{action
} ne 'exists') {
2978 warn "unable to update chain '$chain'\n";
2983 die "unable to apply firewall changes\n" if $errors;
2985 update_nf_conntrack_max
($hostfw_conf);
2987 update_nf_conntrack_tcp_timeout_established
($hostfw_conf);
2991 sub update_nf_conntrack_max
{
2992 my ($hostfw_conf) = @_;
2994 my $max = 65536; # reasonable default
2996 my $options = $hostfw_conf->{options
} || {};
2998 if (defined($options->{nf_conntrack_max
}) && ($options->{nf_conntrack_max
} > $max)) {
2999 $max = $options->{nf_conntrack_max
};
3000 $max = int(($max+ 8191)/8192)*8192; # round to multiples of 8192
3003 my $filename_nf_conntrack_max = "/proc/sys/net/nf_conntrack_max";
3004 my $filename_hashsize = "/sys/module/nf_conntrack/parameters/hashsize";
3006 my $current = int(PVE
::Tools
::file_read_firstline
($filename_nf_conntrack_max) || $max);
3008 if ($current != $max) {
3009 my $hashsize = int($max/4);
3010 PVE
::ProcFSTools
::write_proc_entry
($filename_hashsize, $hashsize);
3011 PVE
::ProcFSTools
::write_proc_entry
($filename_nf_conntrack_max, $max);
3015 sub update_nf_conntrack_tcp_timeout_established
{
3016 my ($hostfw_conf) = @_;
3018 my $options = $hostfw_conf->{options
} || {};
3020 my $value = defined($options->{nf_conntrack_tcp_timeout_established
}) ?
$options->{nf_conntrack_tcp_timeout_established
} : 432000;
3022 PVE
::ProcFSTools
::write_proc_entry
("/proc/sys/net/netfilter/nf_conntrack_tcp_timeout_established", $value);
3025 sub remove_pvefw_chains
{
3027 my ($chash, $hooks) = iptables_get_chains
();
3028 my $cmdlist = "*filter\n";
3030 foreach my $h (qw(INPUT OUTPUT FORWARD)) {
3032 $cmdlist .= "-D $h -j PVEFW-$h\n";
3036 foreach my $chain (keys %$chash) {
3037 $cmdlist .= "-F $chain\n";
3040 foreach my $chain (keys %$chash) {
3041 $cmdlist .= "-X $chain\n";
3043 $cmdlist .= "COMMIT\n";
3045 iptables_restore_cmdlist
($cmdlist);
3049 my $cluster_conf = load_clusterfw_conf
();
3050 my $cluster_options = $cluster_conf->{options
};
3051 my $enable = $cluster_options->{enable
};
3055 # load required modules here
3063 my $cluster_conf = load_clusterfw_conf
();
3064 my $cluster_options = $cluster_conf->{options
};
3066 my $enable = $cluster_options->{enable
};
3068 die "Firewall is disabled - cannot start\n" if !$enable;
3071 PVE
::Firewall
::remove_pvefw_chains
();
3072 print "Firewall disabled\n" if $verbose;
3076 my $hostfw_conf = load_hostfw_conf
();
3078 my ($ruleset, $ipset_ruleset) = compile
($cluster_conf, $hostfw_conf);
3080 apply_ruleset
($ruleset, $hostfw_conf, $ipset_ruleset, $verbose);