]> git.proxmox.com Git - pve-firewall.git/blame - src/PVE/Firewall.pm
projects / pve-firewall.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
add test for long ipset names
[pve-firewall.git] / src / PVE / Firewall.pm
CommitLineData
b6360c3f
DM		 1package PVE::Firewall;
2
3use warnings;
4use strict;
cbb5d6f3 5use POSIX;
b6360c3f 6use Data::Dumper;
09d5f68e 7use Digest::SHA;
c8301d63 8use PVE::INotify;
7ca36671 9use PVE::Exception qw(raise raise_param_exc);
e74a87f5 10use PVE::JSONSchema qw(register_standard_option get_standard_option);
c8301d63 11use PVE::Cluster;
5f0a912c 12use PVE::ProcFSTools;
009ee3ac 13use PVE::Tools qw($IPV4RE);
6b9f68a2 14use File::Basename;
5e1267a5
DM		 15use File::Path;
16use IO::File;
ecbea048 17use Net::IP;
1a301a8d 18use PVE::Tools qw(run_command lock_file dir_glob_foreach);
30c1ae52 19use Encode;
ecbea048 20
63c91681 21my $hostfw_conf_filename = "/etc/pve/local/host.fw";
fca39c2c
DM		 22my $clusterfw_conf_filename = "/etc/pve/firewall/cluster.fw";
23
cbb5d6f3 24# dynamically include PVE::QemuServer and PVE::OpenVZ
d9fee004
DM		 25# to avoid dependency problems
26my $have_qemu_server;
27eval {
28 require PVE::QemuServer;
29 $have_qemu_server = 1;
30};
31
32my $have_pve_manager;
33eval {
34 require PVE::OpenVZ;
35 $have_pve_manager = 1;
36};
37
009ee3ac
DM		 38PVE::JSONSchema::register_format('IPv4orCIDR', \&pve_verify_ipv4_or_cidr);
39sub pve_verify_ipv4_or_cidr {
40 my ($cidr, $noerr) = @_;
41
30f1b100 42 if ($cidr =~ m!^(?:$IPV4RE)(/(\d+))?$!) {
e34d0e58 43 return $cidr if Net::IP->new($cidr);
30f1b100
DM		 44 return undef if $noerr;
45 die Net::IP::Error() . "\n";
009ee3ac
DM		 46 }
47 return undef if $noerr;
48 die "value does not look like a valid IP address or CIDR network\n";
49}
50
e74a87f5
DM		 51PVE::JSONSchema::register_standard_option('ipset-name', {
52 description => "IP set name.",
53 type => 'string',
54 pattern => '[A-Za-z][A-Za-z0-9\-\_]+',
387d0ffc 55 minLength => 2,
e34d0e58 56 maxLength => 20,
387d0ffc
DM		 57});
58
81d574a7
DM		 59PVE::JSONSchema::register_standard_option('pve-fw-alias', {
60 description => "Alias name.",
61 type => 'string',
62 pattern => '[A-Za-z][A-Za-z0-9\-\_]+',
63 minLength => 2,
e34d0e58 64 maxLength => 20,
81d574a7
DM		 65});
66
6302c41f
DM		 67PVE::JSONSchema::register_standard_option('pve-fw-loglevel' => {
68 description => "Log level.",
e34d0e58 69 type => 'string',
6302c41f
DM		 70 enum => ['emerg', 'alert', 'crit', 'err', 'warning', 'notice', 'info', 'debug', 'nolog'],
71 optional => 1,
72});
73
44be8ceb
DM		 74my $security_group_name_pattern = '[A-Za-z][A-Za-z0-9\-\_]+';
75my $ip_alias_pattern = '[A-Za-z][A-Za-z0-9\-\_]+';
c14dacdf 76
387d0ffc
DM		 77PVE::JSONSchema::register_standard_option('pve-security-group-name', {
78 description => "Security Group name.",
79 type => 'string',
44be8ceb 80 pattern => $security_group_name_pattern,
387d0ffc 81 minLength => 2,
e34d0e58 82 maxLength => 20,
e74a87f5 83});
009ee3ac 84
cbb5d6f3
DM		 85my $feature_ipset_nomatch = 0;
86eval {
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);
92 }
93
94};
95
5e1267a5 96use Data::Dumper;
b6360c3f 97
c8301d63
DM		 98my $nodename = PVE::INotify::nodename();
99
06320eb0
DM		 100my $pve_fw_lock_filename = "/var/lock/pvefw.lck";
101
56f313f7 102my $default_log_level = 'nolog'; # avoid logs by default
2d404ffc
DM		 103
104my $log_level_hash = {
105 debug => 7,
106 info => 6,
107 notice => 5,
108 warning => 4,
109 err => 3,
110 crit => 2,
111 alert => 1,
112 emerg => 0,
113};
114
857f62c8 115# imported/converted from: /usr/share/shorewall/macro.*
961b4928 116my $pve_fw_macros = {
857f62c8 117 'Amanda' => [
ebd54ae9 118 "Amanda Backup",
857f62c8
DM		 119 { action => 'PARAM', proto => 'udp', dport => '10080' },
120 { action => 'PARAM', proto => 'tcp', dport => '10080' },
121 ],
122 'Auth' => [
ebd54ae9 123 "Auth (identd) traffic",
857f62c8
DM		 124 { action => 'PARAM', proto => 'tcp', dport => '113' },
125 ],
126 'BGP' => [
ebd54ae9 127 "Border Gateway Protocol traffic",
857f62c8
DM		 128 { action => 'PARAM', proto => 'tcp', dport => '179' },
129 ],
130 'BitTorrent' => [
ebd54ae9 131 "BitTorrent traffic for BitTorrent 3.1 and earlier",
961b4928 132 { action => 'PARAM', proto => 'tcp', dport => '6881:6889' },
857f62c8
DM		 133 { action => 'PARAM', proto => 'udp', dport => '6881' },
134 ],
135 'BitTorrent32' => [
ebd54ae9 136 "BitTorrent traffic for BitTorrent 3.2 and later",
857f62c8
DM		 137 { action => 'PARAM', proto => 'tcp', dport => '6881:6999' },
138 { action => 'PARAM', proto => 'udp', dport => '6881' },
139 ],
140 'CVS' => [
ebd54ae9 141 "Concurrent Versions System pserver traffic",
857f62c8
DM		 142 { action => 'PARAM', proto => 'tcp', dport => '2401' },
143 ],
144 'Citrix' => [
ebd54ae9 145 "Citrix/ICA traffic (ICA, ICA Browser, CGP)",
857f62c8
DM		 146 { action => 'PARAM', proto => 'tcp', dport => '1494' },
147 { action => 'PARAM', proto => 'udp', dport => '1604' },
148 { action => 'PARAM', proto => 'tcp', dport => '2598' },
149 ],
150 'DAAP' => [
ebd54ae9 151 "Digital Audio Access Protocol traffic (iTunes, Rythmbox daemons)",
857f62c8
DM		 152 { action => 'PARAM', proto => 'tcp', dport => '3689' },
153 { action => 'PARAM', proto => 'udp', dport => '3689' },
154 ],
155 'DCC' => [
ebd54ae9 156 "Distributed Checksum Clearinghouse spam filtering mechanism",
857f62c8
DM		 157 { action => 'PARAM', proto => 'tcp', dport => '6277' },
158 ],
159 'DHCPfwd' => [
d2c3266d 160 "Forwarded DHCP traffic",
857f62c8 161 { action => 'PARAM', proto => 'udp', dport => '67:68', sport => '67:68' },
857f62c8
DM		 162 ],
163 'DNS' => [
ebd54ae9 164 "Domain Name System traffic (upd and tcp)",
857f62c8
DM		 165 { action => 'PARAM', proto => 'udp', dport => '53' },
166 { action => 'PARAM', proto => 'tcp', dport => '53' },
167 ],
168 'Distcc' => [
ebd54ae9 169 "Distributed Compiler service",
857f62c8
DM		 170 { action => 'PARAM', proto => 'tcp', dport => '3632' },
171 ],
857f62c8 172 'FTP' => [
ebd54ae9 173 "File Transfer Protocol",
857f62c8
DM		 174 { action => 'PARAM', proto => 'tcp', dport => '21' },
175 ],
176 'Finger' => [
ebd54ae9 177 "Finger protocol (RFC 742)",
857f62c8
DM		 178 { action => 'PARAM', proto => 'tcp', dport => '79' },
179 ],
180 'GNUnet' => [
ebd54ae9 181 "GNUnet secure peer-to-peer networking traffic",
857f62c8
DM		 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' },
186 ],
187 'GRE' => [
d2c3266d 188 "Generic Routing Encapsulation tunneling protocol",
857f62c8 189 { action => 'PARAM', proto => '47' },
857f62c8
DM		 190 ],
191 'Git' => [
ebd54ae9 192 "Git distributed revision control traffic",
857f62c8
DM		 193 { action => 'PARAM', proto => 'tcp', dport => '9418' },
194 ],
857f62c8 195 'HKP' => [
ebd54ae9 196 "OpenPGP HTTP keyserver protocol traffic",
857f62c8
DM		 197 { action => 'PARAM', proto => 'tcp', dport => '11371' },
198 ],
199 'HTTP' => [
ebd54ae9 200 "Hypertext Transfer Protocol (WWW)",
961b4928
DM		 201 { action => 'PARAM', proto => 'tcp', dport => '80' },
202 ],
857f62c8 203 'HTTPS' => [
ebd54ae9 204 "Hypertext Transfer Protocol (WWW) over SSL",
857f62c8
DM		 205 { action => 'PARAM', proto => 'tcp', dport => '443' },
206 ],
207 'ICPV2' => [
ebd54ae9 208 "Internet Cache Protocol V2 (Squid) traffic",
857f62c8
DM		 209 { action => 'PARAM', proto => 'udp', dport => '3130' },
210 ],
211 'ICQ' => [
ebd54ae9 212 "AOL Instant Messenger traffic",
857f62c8
DM		 213 { action => 'PARAM', proto => 'tcp', dport => '5190' },
214 ],
215 'IMAP' => [
ebd54ae9 216 "Internet Message Access Protocol",
857f62c8
DM		 217 { action => 'PARAM', proto => 'tcp', dport => '143' },
218 ],
219 'IMAPS' => [
ebd54ae9 220 "Internet Message Access Protocol over SSL",
857f62c8
DM		 221 { action => 'PARAM', proto => 'tcp', dport => '993' },
222 ],
223 'IPIP' => [
d2c3266d 224 "IPIP capsulation traffic",
857f62c8 225 { action => 'PARAM', proto => '94' },
857f62c8 226 ],
857f62c8 227 'IPsec' => [
d2c3266d 228 "IPsec traffic",
857f62c8
DM		 229 { action => 'PARAM', proto => 'udp', dport => '500', sport => '500' },
230 { action => 'PARAM', proto => '50' },
857f62c8
DM		 231 ],
232 'IPsecah' => [
d2c3266d 233 "IPsec authentication (AH) traffic",
857f62c8
DM		 234 { action => 'PARAM', proto => 'udp', dport => '500', sport => '500' },
235 { action => 'PARAM', proto => '51' },
857f62c8
DM		 236 ],
237 'IPsecnat' => [
d2c3266d 238 "IPsec traffic and Nat-Traversal",
857f62c8
DM		 239 { action => 'PARAM', proto => 'udp', dport => '500' },
240 { action => 'PARAM', proto => 'udp', dport => '4500' },
241 { action => 'PARAM', proto => '50' },
857f62c8
DM		 242 ],
243 'IRC' => [
ebd54ae9 244 "Internet Relay Chat traffic",
857f62c8
DM		 245 { action => 'PARAM', proto => 'tcp', dport => '6667' },
246 ],
857f62c8 247 'Jetdirect' => [
ebd54ae9 248 "HP Jetdirect printing",
857f62c8
DM		 249 { action => 'PARAM', proto => 'tcp', dport => '9100' },
250 ],
251 'L2TP' => [
ebd54ae9 252 "Layer 2 Tunneling Protocol traffic",
857f62c8 253 { action => 'PARAM', proto => 'udp', dport => '1701' },
857f62c8
DM		 254 ],
255 'LDAP' => [
ebd54ae9 256 "Lightweight Directory Access Protocol traffic",
857f62c8
DM		 257 { action => 'PARAM', proto => 'tcp', dport => '389' },
258 ],
259 'LDAPS' => [
ebd54ae9 260 "Secure Lightweight Directory Access Protocol traffic",
857f62c8
DM		 261 { action => 'PARAM', proto => 'tcp', dport => '636' },
262 ],
263 'MSNP' => [
ebd54ae9 264 "Microsoft Notification Protocol",
857f62c8
DM		 265 { action => 'PARAM', proto => 'tcp', dport => '1863' },
266 ],
267 'MSSQL' => [
ebd54ae9 268 "Microsoft SQL Server",
857f62c8
DM		 269 { action => 'PARAM', proto => 'tcp', dport => '1433' },
270 ],
271 'Mail' => [
ebd54ae9 272 "Mail traffic (SMTP, SMTPS, Submission)",
857f62c8
DM		 273 { action => 'PARAM', proto => 'tcp', dport => '25' },
274 { action => 'PARAM', proto => 'tcp', dport => '465' },
275 { action => 'PARAM', proto => 'tcp', dport => '587' },
276 ],
277 'Munin' => [
ebd54ae9 278 "Munin networked resource monitoring traffic",
857f62c8
DM		 279 { action => 'PARAM', proto => 'tcp', dport => '4949' },
280 ],
281 'MySQL' => [
ebd54ae9 282 "MySQL server",
857f62c8
DM		 283 { action => 'PARAM', proto => 'tcp', dport => '3306' },
284 ],
285 'NNTP' => [
ebd54ae9 286 "NNTP traffic (Usenet).",
857f62c8
DM		 287 { action => 'PARAM', proto => 'tcp', dport => '119' },
288 ],
289 'NNTPS' => [
ebd54ae9 290 "Encrypted NNTP traffic (Usenet)",
857f62c8
DM		 291 { action => 'PARAM', proto => 'tcp', dport => '563' },
292 ],
293 'NTP' => [
ebd54ae9 294 "Network Time Protocol (ntpd)",
857f62c8
DM		 295 { action => 'PARAM', proto => 'udp', dport => '123' },
296 ],
857f62c8 297 'OSPF' => [
ebd54ae9 298 "OSPF multicast traffic",
857f62c8
DM		 299 { action => 'PARAM', proto => '89' },
300 ],
301 'OpenVPN' => [
ebd54ae9 302 "OpenVPN traffic",
857f62c8
DM		 303 { action => 'PARAM', proto => 'udp', dport => '1194' },
304 ],
305 'PCA' => [
ebd54ae9 306 "Symantec PCAnywere (tm)",
857f62c8
DM		 307 { action => 'PARAM', proto => 'udp', dport => '5632' },
308 { action => 'PARAM', proto => 'tcp', dport => '5631' },
309 ],
310 'POP3' => [
ebd54ae9 311 "POP3 traffic",
857f62c8
DM		 312 { action => 'PARAM', proto => 'tcp', dport => '110' },
313 ],
314 'POP3S' => [
ebd54ae9 315 "Encrypted POP3 traffic",
857f62c8
DM		 316 { action => 'PARAM', proto => 'tcp', dport => '995' },
317 ],
318 'PPtP' => [
ebd54ae9 319 "Point-to-Point Tunneling Protocol",
857f62c8 320 { action => 'PARAM', proto => '47' },
857f62c8
DM		 321 { action => 'PARAM', proto => 'tcp', dport => '1723' },
322 ],
323 'Ping' => [
ebd54ae9 324 "ICMP echo request",
269d4f13 325 { action => 'PARAM', proto => 'icmp', dport => 'echo-request' },
857f62c8
DM		 326 ],
327 'PostgreSQL' => [
ebd54ae9 328 "PostgreSQL server",
857f62c8
DM		 329 { action => 'PARAM', proto => 'tcp', dport => '5432' },
330 ],
331 'Printer' => [
ebd54ae9 332 "Line Printer protocol printing",
857f62c8
DM		 333 { action => 'PARAM', proto => 'tcp', dport => '515' },
334 ],
335 'RDP' => [
ebd54ae9 336 "Microsoft Remote Desktop Protocol traffic",
857f62c8
DM		 337 { action => 'PARAM', proto => 'tcp', dport => '3389' },
338 ],
d2c3266d 339 'RIP' => [
ebd54ae9 340 "Routing Information Protocol (bidirectional)",
857f62c8 341 { action => 'PARAM', proto => 'udp', dport => '520' },
857f62c8
DM		 342 ],
343 'RNDC' => [
ebd54ae9 344 "BIND remote management protocol",
857f62c8
DM		 345 { action => 'PARAM', proto => 'tcp', dport => '953' },
346 ],
347 'Razor' => [
ebd54ae9 348 "Razor Antispam System",
857f62c8
DM		 349 { action => 'ACCEPT', proto => 'tcp', dport => '2703' },
350 ],
351 'Rdate' => [
ebd54ae9 352 "Remote time retrieval (rdate)",
857f62c8
DM		 353 { action => 'PARAM', proto => 'tcp', dport => '37' },
354 ],
355 'Rsync' => [
ebd54ae9 356 "Rsync server",
857f62c8
DM		 357 { action => 'PARAM', proto => 'tcp', dport => '873' },
358 ],
359 'SANE' => [
ebd54ae9 360 "SANE network scanning",
857f62c8
DM		 361 { action => 'PARAM', proto => 'tcp', dport => '6566' },
362 ],
363 'SMB' => [
ebd54ae9 364 "Microsoft SMB traffic",
857f62c8
DM		 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' },
369 ],
857f62c8 370 'SMBswat' => [
ebd54ae9 371 "Samba Web Administration Tool",
857f62c8
DM		 372 { action => 'PARAM', proto => 'tcp', dport => '901' },
373 ],
374 'SMTP' => [
ebd54ae9 375 "Simple Mail Transfer Protocol",
857f62c8
DM		 376 { action => 'PARAM', proto => 'tcp', dport => '25' },
377 ],
378 'SMTPS' => [
ebd54ae9 379 "Encrypted Simple Mail Transfer Protocol",
857f62c8
DM		 380 { action => 'PARAM', proto => 'tcp', dport => '465' },
381 ],
382 'SNMP' => [
ebd54ae9 383 "Simple Network Management Protocol",
857f62c8
DM		 384 { action => 'PARAM', proto => 'udp', dport => '161:162' },
385 { action => 'PARAM', proto => 'tcp', dport => '161' },
386 ],
387 'SPAMD' => [
ebd54ae9 388 "Spam Assassin SPAMD traffic",
857f62c8
DM		 389 { action => 'PARAM', proto => 'tcp', dport => '783' },
390 ],
391 'SSH' => [
ebd54ae9 392 "Secure shell traffic",
857f62c8
DM		 393 { action => 'PARAM', proto => 'tcp', dport => '22' },
394 ],
395 'SVN' => [
ebd54ae9 396 "Subversion server (svnserve)",
857f62c8
DM		 397 { action => 'PARAM', proto => 'tcp', dport => '3690' },
398 ],
399 'SixXS' => [
ebd54ae9 400 "SixXS IPv6 Deployment and Tunnel Broker",
857f62c8
DM		 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' },
405 ],
406 'Squid' => [
ebd54ae9 407 "Squid web proxy traffic",
857f62c8
DM		 408 { action => 'PARAM', proto => 'tcp', dport => '3128' },
409 ],
410 'Submission' => [
ebd54ae9 411 "Mail message submission traffic",
857f62c8
DM		 412 { action => 'PARAM', proto => 'tcp', dport => '587' },
413 ],
414 'Syslog' => [
ebd54ae9 415 "Syslog protocol (RFC 5424) traffic",
857f62c8
DM		 416 { action => 'PARAM', proto => 'udp', dport => '514' },
417 { action => 'PARAM', proto => 'tcp', dport => '514' },
418 ],
419 'TFTP' => [
ebd54ae9 420 "Trivial File Transfer Protocol traffic",
857f62c8
DM		 421 { action => 'PARAM', proto => 'udp', dport => '69' },
422 ],
423 'Telnet' => [
ebd54ae9 424 "Telnet traffic",
857f62c8
DM		 425 { action => 'PARAM', proto => 'tcp', dport => '23' },
426 ],
427 'Telnets' => [
ebd54ae9 428 "Telnet over SSL",
857f62c8
DM		 429 { action => 'PARAM', proto => 'tcp', dport => '992' },
430 ],
431 'Time' => [
ebd54ae9 432 "RFC 868 Time protocol",
857f62c8
DM		 433 { action => 'PARAM', proto => 'tcp', dport => '37' },
434 ],
435 'Trcrt' => [
ebd54ae9 436 "Traceroute (for up to 30 hops) traffic",
857f62c8 437 { action => 'PARAM', proto => 'udp', dport => '33434:33524' },
269d4f13 438 { action => 'PARAM', proto => 'icmp', dport => 'echo-request' },
857f62c8
DM		 439 ],
440 'VNC' => [
93be4333
DM		 441 "VNC traffic for VNC display's 0 - 99",
442 { action => 'PARAM', proto => 'tcp', dport => '5900:5999' },
857f62c8
DM		 443 ],
444 'VNCL' => [
ebd54ae9 445 "VNC traffic from Vncservers to Vncviewers in listen mode",
857f62c8
DM		 446 { action => 'PARAM', proto => 'tcp', dport => '5500' },
447 ],
448 'Web' => [
ebd54ae9 449 "WWW traffic (HTTP and HTTPS)",
857f62c8 450 { action => 'PARAM', proto => 'tcp', dport => '80' },
961b4928
DM		 451 { action => 'PARAM', proto => 'tcp', dport => '443' },
452 ],
857f62c8 453 'Webcache' => [
ebd54ae9 454 "Web Cache/Proxy traffic (port 8080)",
857f62c8
DM		 455 { action => 'PARAM', proto => 'tcp', dport => '8080' },
456 ],
457 'Webmin' => [
ebd54ae9 458 "Webmin traffic",
857f62c8
DM		 459 { action => 'PARAM', proto => 'tcp', dport => '10000' },
460 ],
461 'Whois' => [
ebd54ae9 462 "Whois (nicname, RFC 3912) traffic",
857f62c8
DM		 463 { action => 'PARAM', proto => 'tcp', dport => '43' },
464 ],
961b4928
DM		 465};
466
467my $pve_fw_parsed_macros;
ebd54ae9 468my $pve_fw_macro_descr;
961b4928 469my $pve_fw_preferred_macro_names = {};
3a616aa0 470
d8f2505e
DM		 471my $pve_std_chains = {
472 'PVEFW-SET-ACCEPT-MARK' => [
473 "-j MARK --set-mark 1",
474 ],
79929d9c
DM		 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' },
cbb5d6f3 482 { action => 'DROP', dest => '224.0.0.0/4' },
79929d9c
DM		 483 ],
484 'PVEFW-reject' => [
485 # same as shorewall 'reject'
486 { action => 'DROP', dsttype => 'BROADCAST' },
cbb5d6f3 487 { action => 'DROP', source => '224.0.0.0/4' },
79929d9c
DM		 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",
493 ],
494 'PVEFW-Drop' => [
cbb5d6f3 495 # same as shorewall 'Drop', which is equal to DROP,
79929d9c
DM		 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",
514 # Drop DNS replies
515 { action => 'DROP', proto => 'udp', sport => 53 },
516 ],
517 'PVEFW-Reject' => [
cbb5d6f3 518 # same as shorewall 'Reject', which is equal to Reject,
79929d9c
DM		 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",
537 # Drop DNS replies
538 { action => 'DROP', proto => 'udp', sport => 53 },
539 ],
d86659ef
DM		 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",
548 ],
bee633ab
DM		 549 'PVEFW-smurfs' => [
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",
555 ],
d8f2505e
DM		 556};
557
4b586518
DM		 558# iptables -p icmp -h
559my $icmp_type_names = {
560 any => 1,
561 'echo-reply' => 1,
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,
570 'host-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,
579 'redirect' => 1,
580 'network-redirect' => 1,
581 'host-redirect' => 1,
582 'TOS-network-redirect' => 1,
583 'TOS-host-redirect' => 1,
584 'echo-request' => 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,
597};
598
54cd19a8 599sub init_firewall_macros {
6158271d 600
961b4928 601 $pve_fw_parsed_macros = {};
9aab3127 602
961b4928 603 foreach my $k (keys %$pve_fw_macros) {
e5076eee
DM		 604 my $lc_name = lc($k);
605 my $macro = $pve_fw_macros->{$k};
ebd54ae9
DM		 606 if (!ref($macro->[0])) {
607 $pve_fw_macro_descr->{$k} = shift @$macro;
608 }
e5076eee
DM		 609 $pve_fw_preferred_macro_names->{$lc_name} = $k;
610 $pve_fw_parsed_macros->{$k} = $macro;
961b4928 611 }
9aab3127
DM		 612}
613
54cd19a8
DM		 614init_firewall_macros();
615
ebd54ae9
DM		 616sub get_macros {
617 return wantarray ? ($pve_fw_parsed_macros, $pve_fw_macro_descr): $pve_fw_parsed_macros;
618}
619
fcba0beb
DM		 620my $etc_services;
621
622sub get_etc_services {
623
624 return $etc_services if $etc_services;
625
626 my $filename = "/etc/services";
627
628 my $fh = IO::File->new($filename, O_RDONLY);
629 if (!$fh) {
630 warn "unable to read '$filename' - $!\n";
631 return {};
632 }
633
634 my $services = {};
635
636 while (my $line = <$fh>) {
637 chomp ($line);
638 next if $line =~m/^#/;
639 next if ($line =~m/^\s*$/);
640
641 if ($line =~ m!^(\S+)\s+(\S+)/(tcp|udp).*$!) {
642 $services->{byid}->{$2}->{name} = $1;
35b66e9d 643 $services->{byid}->{$2}->{port} = $2;
fcba0beb
DM		 644 $services->{byid}->{$2}->{$3} = 1;
645 $services->{byname}->{$1} = $services->{byid}->{$2};
646 }
647 }
648
649 close($fh);
650
6158271d
DM		 651 $etc_services = $services;
652
3a616aa0 653
fcba0beb
DM		 654 return $etc_services;
655}
656
657my $etc_protocols;
658
659sub get_etc_protocols {
660 return $etc_protocols if $etc_protocols;
661
662 my $filename = "/etc/protocols";
663
664 my $fh = IO::File->new($filename, O_RDONLY);
665 if (!$fh) {
666 warn "unable to read '$filename' - $!\n";
667 return {};
668 }
669
670 my $protocols = {};
671
672 while (my $line = <$fh>) {
673 chomp ($line);
674 next if $line =~m/^#/;
675 next if ($line =~m/^\s*$/);
676
677 if ($line =~ m!^(\S+)\s+(\d+)\s+.*$!) {
678 $protocols->{byid}->{$2}->{name} = $1;
679 $protocols->{byname}->{$1} = $protocols->{byid}->{$2};
680 }
681 }
682
683 close($fh);
684
685 $etc_protocols = $protocols;
686
687 return $etc_protocols;
688}
689
525778d7 690my $ipv4_mask_hash_localnet = {
93be4333
DM		 691 '255.255.0.0' => 16,
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,
706};
707
525778d7 708my $__local_network;
93be4333 709
525778d7 710sub local_network {
ac633d30 711 my ($new_value) = @_;
93be4333 712
525778d7 713 $__local_network = $new_value if defined($new_value);
ac633d30 714
525778d7 715 return $__local_network if defined($__local_network);
93be4333
DM		 716
717 eval {
718 my $nodename = PVE::INotify::nodename();
719
720 my $ip = PVE::Cluster::remote_node_ip($nodename);
721
722 my $testip = Net::IP->new($ip);
bfc488f6 723
93be4333
DM		 724 my $routes = PVE::ProcFSTools::read_proc_net_route();
725 foreach my $entry (@$routes) {
525778d7 726 my $mask = $ipv4_mask_hash_localnet->{$entry->{mask}};
93be4333
DM		 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)) {
525778d7 732 $__local_network = $cidr;
93be4333
DM		 733 return;
734 }
735 }
736 };
737 warn $@ if $@;
738
525778d7 739 return $__local_network;
93be4333
DM		 740}
741
708ba714
DM		 742my $max_ipset_name_length = 27;
743
744sub compute_ipset_chain_name {
745 my ($vmid, $ipset_name) = @_;
746
747 $vmid = 0 if !defined($vmid);
748
749 my $id = "$vmid-${ipset_name}";
750
751
752 if ((length($id) + 6) > $max_ipset_name_length) {
753 $id = PVE::Tools::fnv31a_hex($id);
754 }
755
756 return "PVEFW-$id";
757}
758
ecbea048
DM		 759sub parse_address_list {
760 my ($str) = @_;
761
28311400 762 return if $str =~ m/^(\+)(\S+)$/; # ipset ref
44be8ceb 763 return if $str =~ m/^${ip_alias_pattern}$/;
d72beb8e 764
3162af6b
DM		 765 my $count = 0;
766 my $iprange = 0;
767 foreach my $elem (split(/,/, $str)) {
768 $count++;
769 if (!Net::IP->new($elem)) {
ecbea048
DM		 770 my $err = Net::IP::Error();
771 die "invalid IP address: $err\n";
772 }
3162af6b 773 $iprange = 1 if $elem =~ m/-/;
ecbea048 774 }
e34d0e58 775
3162af6b 776 die "you can use a range in a list\n" if $iprange && $count > 1;
ecbea048 777}
dddd9413 778
fcba0beb
DM		 779sub parse_port_name_number_or_range {
780 my ($str) = @_;
781
782 my $services = PVE::Firewall::get_etc_services();
7ca36671 783 my $count = 0;
041b7e8e
DM		 784 my $icmp_port = 0;
785
fcba0beb 786 foreach my $item (split(/,/, $str)) {
7ca36671
DM		 787 $count++;
788 if ($item =~ m/^(\d+):(\d+)$/) {
789 my ($port1, $port2) = ($1, $2);
790 die "invalid port '$port1'\n" if $port1 > 65535;
791 die "invalid port '$port2'\n" if $port2 > 65535;
792 } elsif ($item =~ m/^(\d+)$/) {
793 my $port = $1;
794 die "invalid port '$port'\n" if $port > 65535;
795 } else {
041b7e8e
DM		 796 if ($icmp_type_names->{$item}) {
797 $icmp_port = 1;
798 } else {
e34d0e58 799 die "invalid port '$item'\n" if !$services->{byname}->{$item};
041b7e8e 800 }
fcba0beb
DM		 801 }
802 }
803
041b7e8e
DM		 804 die "ICPM ports not allowed in port range\n" if $icmp_port && $count > 1;
805
7ca36671 806 return $count;
fcba0beb
DM		 807}
808
54cd19a8
DM		 809PVE::JSONSchema::register_format('pve-fw-port-spec', \&pve_fw_verify_port_spec);
810sub pve_fw_verify_port_spec {
811 my ($portstr) = @_;
812
7ca36671 813 parse_port_name_number_or_range($portstr);
54cd19a8
DM		 814
815 return $portstr;
816}
817
818PVE::JSONSchema::register_format('pve-fw-v4addr-spec', \&pve_fw_verify_v4addr_spec);
819sub pve_fw_verify_v4addr_spec {
820 my ($list) = @_;
821
822 parse_address_list($list);
823
824 return $list;
825}
826
827PVE::JSONSchema::register_format('pve-fw-protocol-spec', \&pve_fw_verify_protocol_spec);
828sub pve_fw_verify_protocol_spec {
829 my ($proto) = @_;
830
831 my $protocols = get_etc_protocols();
832
833 die "unknown protocol '$proto'\n" if $proto &&
834 !(defined($protocols->{byname}->{$proto}) ||
835 defined($protocols->{byid}->{$proto}));
836
837 return $proto;
838}
839
840
d1c53b3e 841# helper function for API
d1c53b3e 842
5d38d64f
DM		 843sub copy_opject_with_digest {
844 my ($object) = @_;
845
846 my $sha = Digest::SHA->new('sha1');
847
848 my $res = {};
849 foreach my $k (sort keys %$object) {
850 my $v = $object->{$k};
0365eb68 851 next if !defined($v);
5d38d64f
DM		 852 $res->{$k} = $v;
853 $sha->add($k, ':', $v, "\n");
854 }
855
55e686c7 856 my $digest = $sha->hexdigest;
5d38d64f
DM		 857
858 $res->{digest} = $digest;
859
860 return wantarray ? ($res, $digest) : $res;
861}
862
863sub copy_list_with_digest {
864 my ($list) = @_;
865
866 my $sha = Digest::SHA->new('sha1');
867
868 my $res = [];
869 foreach my $entry (@$list) {
870 my $data = {};
871 foreach my $k (sort keys %$entry) {
872 my $v = $entry->{$k};
0365eb68 873 next if !defined($v);
5d38d64f 874 $data->{$k} = $v;
6d9246e7
DM		 875 # Note: digest ignores refs ($rule->{errors})
876 $sha->add($k, ':', $v, "\n") if !ref($v); ;
5d38d64f
DM		 877 }
878 push @$res, $data;
879 }
880
55e686c7 881 my $digest = $sha->hexdigest;
5d38d64f
DM		 882
883 foreach my $entry (@$res) {
884 $entry->{digest} = $digest;
885 }
886
887 return wantarray ? ($res, $digest) : $res;
888}
889
9c7e0858
DM		 890my $rule_properties = {
891 pos => {
892 description => "Update rule at position <pos>.",
893 type => 'integer',
894 minimum => 0,
895 optional => 1,
896 },
c71e785f 897 digest => get_standard_option('pve-config-digest'),
9c7e0858
DM		 898 type => {
899 type => 'string',
900 optional => 1,
901 enum => ['in', 'out', 'group'],
902 },
903 action => {
c14dacdf 904 description => "Rule action ('ACCEPT', 'DROP', 'REJECT') or security group name.",
9c7e0858
DM		 905 type => 'string',
906 optional => 1,
44be8ceb 907 pattern => $security_group_name_pattern,
c14dacdf
DM		 908 maxLength => 20,
909 minLength => 2,
9c7e0858 910 },
e5076eee
DM		 911 macro => {
912 type => 'string',
913 optional => 1,
54cd19a8 914 maxLength => 128,
e5076eee 915 },
54cd19a8 916 iface => get_standard_option('pve-iface', { optional => 1 }),
9c7e0858 917 source => {
54cd19a8 918 type => 'string', format => 'pve-fw-v4addr-spec',
9c7e0858
DM		 919 optional => 1,
920 },
921 dest => {
54cd19a8 922 type => 'string', format => 'pve-fw-v4addr-spec',
9c7e0858
DM		 923 optional => 1,
924 },
925 proto => {
54cd19a8 926 type => 'string', format => 'pve-fw-protocol-spec',
9c7e0858
DM		 927 optional => 1,
928 },
929 enable => {
930 type => 'boolean',
931 optional => 1,
932 },
933 sport => {
54cd19a8 934 type => 'string', format => 'pve-fw-port-spec',
9c7e0858
DM		 935 optional => 1,
936 },
937 dport => {
54cd19a8 938 type => 'string', format => 'pve-fw-port-spec',
9c7e0858
DM		 939 optional => 1,
940 },
941 comment => {
942 type => 'string',
943 optional => 1,
944 },
945};
946
947sub add_rule_properties {
948 my ($properties) = @_;
949
950 foreach my $k (keys %$rule_properties) {
3655b01f
DM		 951 my $h = $rule_properties->{$k};
952 # copy data, so that we can modify later without side effects
953 foreach my $opt (keys %$h) { $properties->{$k}->{$opt} = $h->{$opt}; }
9c7e0858 954 }
cbb5d6f3 955
9c7e0858
DM		 956 return $properties;
957}
958
5b7974df
DM		 959sub delete_rule_properties {
960 my ($rule, $delete_str) = @_;
e34d0e58 961
5b7974df
DM		 962 foreach my $opt (PVE::Tools::split_list($delete_str)) {
963 raise_param_exc({ 'delete' => "no such property ('$opt')"})
964 if !defined($rule_properties->{$opt});
965 raise_param_exc({ 'delete' => "unable to delete required property '$opt'"})
966 if $opt eq 'type' || $opt eq 'action';
967 delete $rule->{$opt};
968 }
969
970 return $rule;
971}
972
9a2745a0
DM		 973my $apply_macro = sub {
974 my ($macro_name, $param, $verify) = @_;
975
976 my $macro_rules = $pve_fw_parsed_macros->{$macro_name};
977 die "unknown macro '$macro_name'\n" if !$macro_rules; # should not happen
978
979 my $rules = [];
980
981 foreach my $templ (@$macro_rules) {
982 my $rule = {};
983 my $param_used = {};
984 foreach my $k (keys %$templ) {
985 my $v = $templ->{$k};
986 if ($v eq 'PARAM') {
987 $v = $param->{$k};
988 $param_used->{$k} = 1;
989 } elsif ($v eq 'DEST') {
990 $v = $param->{dest};
991 $param_used->{dest} = 1;
992 } elsif ($v eq 'SOURCE') {
993 $v = $param->{source};
994 $param_used->{source} = 1;
995 }
996
997 if (!defined($v)) {
998 my $msg = "missing parameter '$k' in macro '$macro_name'";
e34d0e58 999 raise_param_exc({ macro => $msg }) if $verify;
9a2745a0
DM		 1000 die "$msg\n";
1001 }
1002 $rule->{$k} = $v;
1003 }
1004 foreach my $k (keys %$param) {
1005 next if $k eq 'macro';
1006 next if !defined($param->{$k});
1007 next if $param_used->{$k};
1008 if (defined($rule->{$k})) {
1009 if ($rule->{$k} ne $param->{$k}) {
1010 my $msg = "parameter '$k' already define in macro (value = '$rule->{$k}')";
e34d0e58 1011 raise_param_exc({ $k => $msg }) if $verify;
9a2745a0
DM		 1012 die "$msg\n";
1013 }
1014 } else {
1015 $rule->{$k} = $param->{$k};
1016 }
1017 }
1018 push @$rules, $rule;
1019 }
1020
1021 return $rules;
1022};
1023
b6b8e6ad
DM		 1024my $rule_env_iface_lookup = {
1025 'ct' => 1,
1026 'vm' => 1,
1027 'group' => 0,
1028 'cluster' => 1,
1029 'host' => 1,
1030};
1031
7ca36671 1032sub verify_rule {
a523e057 1033 my ($rule, $cluster_conf, $fw_conf, $rule_env, $noerr) = @_;
b6b8e6ad
DM		 1034
1035 my $allow_groups = $rule_env eq 'group' ? 0 : 1;
bfc488f6 1036
b6b8e6ad
DM		 1037 my $allow_iface = $rule_env_iface_lookup->{$rule_env};
1038 die "unknown rule_env '$rule_env'\n" if !defined($allow_iface); # should not happen
7ca36671 1039
a523e057
DM		 1040 my $errors = $rule->{errors} || {};
1041
6d9246e7 1042 my $error_count = 0;
7ca36671 1043
6d9246e7
DM		 1044 my $add_error = sub {
1045 my ($param, $msg) = @_;
d4cda423 1046 chomp $msg;
6d9246e7
DM		 1047 raise_param_exc({ $param => $msg }) if !$noerr;
1048 $error_count++;
1049 $errors->{$param} = $msg if !$errors->{$param};
1050 };
1051
a523e057
DM		 1052 my $check_ipset_or_alias_property = sub {
1053 my ($name) = @_;
1054
1055 if (my $value = $rule->{$name}) {
1056 if ($value =~ m/^\+/) {
1057 if ($value =~ m/^\+(${security_group_name_pattern})$/) {
bfc488f6 1058 &$add_error($name, "no such ipset '$1'")
a523e057 1059 if !($cluster_conf->{ipset}->{$1} || ($fw_conf && $fw_conf->{ipset}->{$1}));
bfc488f6 1060
a523e057
DM		 1061 } else {
1062 &$add_error($name, "invalid security group name '$value'");
1063 }
1064 } elsif ($value =~ m/^${ip_alias_pattern}$/){
1065 my $alias = lc($value);
bfc488f6 1066 &$add_error($name, "no such alias '$value'")
a523e057
DM		 1067 if !($cluster_conf->{aliases}->{$alias} || ($fw_conf && $fw_conf->{aliases}->{$alias}))
1068 }
1069 }
1070 };
1071
6d9246e7
DM		 1072 my $type = $rule->{type};
1073 my $action = $rule->{action};
bfc488f6 1074
6d9246e7
DM		 1075 &$add_error('type', "missing property") if !$type;
1076 &$add_error('action', "missing property") if !$action;
1077
1078 if ($type) {
1079 if ($type eq 'in' || $type eq 'out') {
1080 &$add_error('action', "unknown action '$action'")
1081 if $action && ($action !~ m/^(ACCEPT|DROP|REJECT)$/);
1082 } elsif ($type eq 'group') {
1083 &$add_error('type', "security groups not allowed")
1084 if !$allow_groups;
1085 &$add_error('action', "invalid characters in security group name")
1086 if $action && ($action !~ m/^${security_group_name_pattern}$/);
1087 } else {
1088 &$add_error('type', "unknown rule type '$type'");
1089 }
7ca36671 1090 }
e34d0e58 1091
dba740a9 1092 if ($rule->{iface}) {
bfc488f6 1093 &$add_error('type', "parameter -i not allowed for this rule type")
b6b8e6ad 1094 if !$allow_iface;
dba740a9 1095 eval { PVE::JSONSchema::pve_verify_iface($rule->{iface}); };
6d9246e7 1096 &$add_error('iface', $@) if $@;
b6b8e6ad
DM		 1097 if ($rule_env eq 'vm') {
1098 &$add_error('iface', "value does not match the regex pattern 'net\\d+'")
1099 if $rule->{iface} !~ m/^net(\d+)$/;
1100 } elsif ($rule_env eq 'ct') {
1101 &$add_error('iface', "value does not match the regex pattern '(venet|eth\\d+)'")
1102 if $rule->{iface} !~ m/^(venet|eth(\d+))$/;
1103 }
1104 }
7ca36671
DM		 1105
1106 if ($rule->{macro}) {
6d9246e7
DM		 1107 if (my $preferred_name = $pve_fw_preferred_macro_names->{lc($rule->{macro})}) {
1108 $rule->{macro} = $preferred_name;
1109 } else {
1110 &$add_error('macro', "unknown macro '$rule->{macro}'");
1111 }
1112 }
1113
1114 if ($rule->{proto}) {
1115 eval { pve_fw_verify_protocol_spec($rule->{proto}); };
1116 &$add_error('proto', $@) if $@;
1117 }
7ca36671
DM		 1118
1119 if ($rule->{dport}) {
1120 eval { parse_port_name_number_or_range($rule->{dport}); };
6d9246e7
DM		 1121 &$add_error('dport', $@) if $@;
1122 &$add_error('proto', "missing property - 'dport' requires this property")
914f9a50 1123 if !$rule->{proto};
6d9246e7 1124 }
7ca36671
DM		 1125
1126 if ($rule->{sport}) {
1127 eval { parse_port_name_number_or_range($rule->{sport}); };
6d9246e7
DM		 1128 &$add_error('sport', $@) if $@;
1129 &$add_error('proto', "missing property - 'sport' requires this property")
914f9a50 1130 if !$rule->{proto};
7ca36671
DM		 1131 }
1132
1133 if ($rule->{source}) {
1134 eval { parse_address_list($rule->{source}); };
6d9246e7 1135 &$add_error('source', $@) if $@;
a523e057 1136 &$check_ipset_or_alias_property('source');
7ca36671
DM		 1137 }
1138
1139 if ($rule->{dest}) {
1140 eval { parse_address_list($rule->{dest}); };
6d9246e7 1141 &$add_error('dest', $@) if $@;
a523e057 1142 &$check_ipset_or_alias_property('dest');
7ca36671
DM		 1143 }
1144
a523e057 1145 if ($rule->{macro} && !$error_count) {
6d9246e7
DM		 1146 eval { &$apply_macro($rule->{macro}, $rule, 1); };
1147 if (my $err = $@) {
1148 if (ref($err) eq "PVE::Exception" && $err->{errors}) {
1149 my $eh = $err->{errors};
1150 foreach my $p (keys %$eh) {
1151 &$add_error($p, $eh->{$p});
1152 }
1153 } else {
1154 &$add_error('macro', "$err");
1155 }
1156 }
9a2745a0
DM		 1157 }
1158
6d9246e7
DM		 1159 $rule->{errors} = $errors if $error_count;
1160
7ca36671
DM		 1161 return $rule;
1162}
1163
9c7e0858
DM		 1164sub copy_rule_data {
1165 my ($rule, $param) = @_;
1166
1167 foreach my $k (keys %$rule_properties) {
1168 if (defined(my $v = $param->{$k})) {
1169 if ($v eq '' || $v eq '-') {
1170 delete $rule->{$k};
1171 } else {
1172 $rule->{$k} = $v;
1173 }
9c7e0858
DM		 1174 }
1175 }
7ca36671 1176
9c7e0858
DM		 1177 return $rule;
1178}
1179
1180# core functions
780bcc0f
DM		 1181my $bridge_firewall_enabled = 0;
1182
1183sub enable_bridge_firewall {
1184
1185 return if $bridge_firewall_enabled; # only once
1186
5f0a912c
DM		 1187 PVE::ProcFSTools::write_proc_entry("/proc/sys/net/bridge/bridge-nf-call-iptables", "1");
1188 PVE::ProcFSTools::write_proc_entry("/proc/sys/net/bridge/bridge-nf-call-ip6tables", "1");
780bcc0f 1189
6a8a75db
DM		 1190 # make sure syncookies are enabled (which is default on newer 3.X kernels anyways)
1191 PVE::ProcFSTools::write_proc_entry("/proc/sys/net/ipv4/tcp_syncookies", "1");
1192
780bcc0f
DM		 1193 $bridge_firewall_enabled = 1;
1194}
1195
8cebfa6f 1196my $rule_format = "%-15s %-30s %-30s %-15s %-15s %-15s\n";
dddd9413 1197
b16e818e
DM		 1198sub iptables_restore_cmdlist {
1199 my ($cmdlist) = @_;
3a616aa0 1200
3fa83edf 1201 run_command("/sbin/iptables-restore -n", input => $cmdlist);
3a616aa0
AD		 1202}
1203
34cdedfa
AD		 1204sub ipset_restore_cmdlist {
1205 my ($cmdlist) = @_;
1206
dd7a13fd 1207 run_command("/usr/sbin/ipset restore", input => $cmdlist);
34cdedfa
AD		 1208}
1209
de2a57cd
DM		 1210sub iptables_get_chains {
1211
1212 my $res = {};
1213
1214 # check what chains we want to track
1215 my $is_pvefw_chain = sub {
1216 my $name = shift;
1217
dec84fcd
DM		 1218 return 1 if $name =~ m/^PVEFW-\S+$/;
1219
de2a57cd 1220 return 1 if $name =~ m/^tap\d+i\d+-(:?IN|OUT)$/;
954f24b1
DM		 1221
1222 return 1 if $name =~ m/^veth\d+.\d+-(:?IN|OUT)$/; # fixme: dev name is configurable
1223
9e15114a
DM		 1224 return 1 if $name =~ m/^venet0-\d+-(:?IN|OUT)$/;
1225
a01c32c7 1226 return 1 if $name =~ m/^fwbr\d+(v\d+)?-(:?FW|IN|OUT|IPS)$/;
f50656c2 1227 return 1 if $name =~ m/^GROUP-(:?[^\s\-]+)-(:?IN|OUT)$/;
de2a57cd
DM		 1228
1229 return undef;
1230 };
1231
1232 my $table = '';
1233
c4a2e5ae
DM		 1234 my $hooks = {};
1235
de2a57cd
DM		 1236 my $parser = sub {
1237 my $line = shift;
1238
1239 return if $line =~ m/^#/;
1240 return if $line =~ m/^\s*$/;
1241
1242 if ($line =~ m/^\*(\S+)$/) {
1243 $table = $1;
1244 return;
1245 }
1246
1247 return if $table ne 'filter';
1248
1249 if ($line =~ m/^:(\S+)\s/) {
1250 my $chain = $1;
1251 return if !&$is_pvefw_chain($chain);
3fa83edf 1252 $res->{$chain} = "unknown";
09d5f68e 1253 } elsif ($line =~ m/^-A\s+(\S+)\s.*--comment\s+\"PVESIG:(\S+)\"/) {
3fa83edf 1254 my ($chain, $sig) = ($1, $2);
de2a57cd 1255 return if !&$is_pvefw_chain($chain);
3fa83edf 1256 $res->{$chain} = $sig;
c4a2e5ae
DM		 1257 } elsif ($line =~ m/^-A\s+(INPUT|OUTPUT|FORWARD)\s+-j\s+PVEFW-\1$/) {
1258 $hooks->{$1} = 1;
de2a57cd
DM		 1259 } else {
1260 # simply ignore the rest
1261 return;
1262 }
1263 };
1264
1265 run_command("/sbin/iptables-save", outfunc => $parser);
1266
c4a2e5ae 1267 return wantarray ? ($res, $hooks) : $res;
de2a57cd
DM		 1268}
1269
9bf7d929
DM		 1270sub iptables_chain_digest {
1271 my ($rules) = @_;
1272 my $digest = Digest::SHA->new('sha1');
1273 foreach my $rule (@$rules) { # order is important
1274 $digest->add($rule);
1275 }
1276 return $digest->b64digest;
1277}
1278
3f95d14a
DM		 1279sub ipset_chain_digest {
1280 my ($rules) = @_;
4bd0a9c4 1281
3f95d14a
DM		 1282 my $digest = Digest::SHA->new('sha1');
1283 foreach my $rule (sort @$rules) { # note: sorted
1284 $digest->add($rule);
1285 }
1286 return $digest->b64digest;
1287}
1288
34cdedfa
AD		 1289sub ipset_get_chains {
1290
1291 my $res = {};
1292 my $chains = {};
1293
1294 my $parser = sub {
1295 my $line = shift;
1296
1297 return if $line =~ m/^#/;
1298 return if $line =~ m/^\s*$/;
4b96e877 1299 if ($line =~ m/^(?:\S+)\s(PVEFW-\S+)\s(?:\S+).*/) {
81a0bf43
DM		 1300 my $chain = $1;
1301 $line =~ s/\s+$//; # delete trailing white space
1302 push @{$chains->{$chain}}, $line;
34cdedfa
AD		 1303 } else {
1304 # simply ignore the rest
1305 return;
1306 }
1307 };
1308
3f95d14a 1309 run_command("/usr/sbin/ipset save", outfunc => $parser);
34cdedfa 1310
3f95d14a
DM		 1311 # compute digest for each chain
1312 foreach my $chain (keys %$chains) {
1313 $res->{$chain} = ipset_chain_digest($chains->{$chain});
34cdedfa
AD		 1314 }
1315
1316 return $res;
1317}
1318
eba0fb64 1319sub ruleset_generate_cmdstr {
e523d2bb 1320 my ($ruleset, $chain, $rule, $actions, $goto, $cluster_conf, $fw_conf) = @_;
3a616aa0 1321
00bb4391 1322 return if defined($rule->{enable}) && !$rule->{enable};
6d9246e7 1323 return if $rule->{errors};
11bac5c2 1324
e5076eee
DM		 1325 die "unable to emit macro - internal error" if $rule->{macro}; # should not happen
1326
1327 my $nbdport = defined($rule->{dport}) ? parse_port_name_number_or_range($rule->{dport}) : 0;
1328 my $nbsport = defined($rule->{sport}) ? parse_port_name_number_or_range($rule->{sport}) : 0;
e5076eee 1329
41524a58 1330 my @cmd = ();
3a616aa0 1331
eba0fb64
DM		 1332 push @cmd, "-i $rule->{iface_in}" if $rule->{iface_in};
1333 push @cmd, "-o $rule->{iface_out}" if $rule->{iface_out};
1334
ba791b1f
AD		 1335 my $source = $rule->{source};
1336 my $dest = $rule->{dest};
1337
cbb5d6f3 1338 if ($source) {
44be8ceb
DM		 1339 if ($source =~ m/^\+/) {
1340 if ($source =~ m/^\+(${security_group_name_pattern})$/) {
e523d2bb
DM		 1341 my $name = $1;
1342 if ($fw_conf && $fw_conf->{ipset}->{$name}) {
708ba714
DM		 1343 my $ipset_chain = compute_ipset_chain_name($fw_conf->{vmid}, $name);
1344 push @cmd, "-m set --match-set ${ipset_chain} src";
e523d2bb 1345 } elsif ($cluster_conf && $cluster_conf->{ipset}->{$name}) {
708ba714
DM		 1346 my $ipset_chain = compute_ipset_chain_name(0, $name);
1347 push @cmd, "-m set --match-set ${ipset_chain} src";
e523d2bb
DM		 1348 } else {
1349 die "no such ipset '$name'\n";
1350 }
44be8ceb
DM		 1351 } else {
1352 die "invalid security group name '$source'\n";
1353 }
1354 } elsif ($source =~ m/^${ip_alias_pattern}$/){
81d574a7 1355 my $alias = lc($source);
bfc488f6 1356 my $e = $fw_conf->{aliases}->{$alias} if $fw_conf;
e523d2bb
DM		 1357 $e = $cluster_conf->{aliases}->{$alias} if !$e && $cluster_conf;
1358 die "no such alias '$source'\n" if !$e;
81d574a7 1359 push @cmd, "-s $e->{cidr}";
ac8242cc 1360 } elsif ($source =~ m/\-/){
ba791b1f 1361 push @cmd, "-m iprange --src-range $source";
cbb5d6f3 1362 } else {
ba791b1f
AD		 1363 push @cmd, "-s $source";
1364 }
1365 }
1366
cbb5d6f3 1367 if ($dest) {
44be8ceb
DM		 1368 if ($dest =~ m/^\+/) {
1369 if ($dest =~ m/^\+(${security_group_name_pattern})$/) {
e523d2bb
DM		 1370 my $name = $1;
1371 if ($fw_conf && $fw_conf->{ipset}->{$name}) {
708ba714 1372 my $ipset_chain = compute_ipset_chain_name($fw_conf->{vmid}, $name);
ac4580a0 1373 push @cmd, "-m set --match-set ${ipset_chain} dst";
e523d2bb 1374 } elsif ($cluster_conf && $cluster_conf->{ipset}->{$name}) {
708ba714
DM		 1375 my $ipset_chain = compute_ipset_chain_name(0, $name);
1376 push @cmd, "-m set --match-set ${ipset_chain} dst";
e523d2bb
DM		 1377 } else {
1378 die "no such ipset '$name'\n";
1379 }
44be8ceb
DM		 1380 } else {
1381 die "invalid security group name '$dest'\n";
1382 }
1383 } elsif ($dest =~ m/^${ip_alias_pattern}$/){
51b40846 1384 my $alias = lc($dest);
bfc488f6 1385 my $e = $fw_conf->{aliases}->{$alias} if $fw_conf;
e523d2bb
DM		 1386 $e = $cluster_conf->{aliases}->{$alias} if !$e && $cluster_conf;
1387 die "no such alias '$dest'\n" if !$e;
81d574a7 1388 push @cmd, "-d $e->{cidr}";
cbb5d6f3 1389 } elsif ($dest =~ m/^(\d+)\.(\d+).(\d+).(\d+)\-(\d+)\.(\d+).(\d+).(\d+)$/){
ba791b1f 1390 push @cmd, "-m iprange --dst-range $dest";
cbb5d6f3 1391 } else {
d6d2a385 1392 push @cmd, "-d $dest";
ba791b1f
AD		 1393 }
1394 }
4b586518 1395
181390b0 1396 if ($rule->{proto}) {
41524a58 1397 push @cmd, "-p $rule->{proto}";
e3a1d391 1398
181390b0 1399 my $multiport = 0;
e5076eee
DM		 1400 $multiport++ if $nbdport > 1;
1401 $multiport++ if $nbsport > 1;
e3a1d391 1402
41524a58 1403 push @cmd, "--match multiport" if $multiport;
4b586518 1404
cbb5d6f3 1405 die "multiport: option '--sports' cannot be used together with '--dports'\n"
181390b0
DM		 1406 if ($multiport == 2) && ($rule->{dport} ne $rule->{sport});
1407
1408 if ($rule->{dport}) {
1409 if ($rule->{proto} && $rule->{proto} eq 'icmp') {
1410 # Note: we use dport to store --icmp-type
1411 die "unknown icmp-type '$rule->{dport}'\n" if !defined($icmp_type_names->{$rule->{dport}});
41524a58 1412 push @cmd, "-m icmp --icmp-type $rule->{dport}";
181390b0 1413 } else {
e5076eee 1414 if ($nbdport > 1) {
181390b0 1415 if ($multiport == 2) {
41524a58 1416 push @cmd, "--ports $rule->{dport}";
181390b0 1417 } else {
41524a58 1418 push @cmd, "--dports $rule->{dport}";
181390b0 1419 }
e3a1d391 1420 } else {
41524a58 1421 push @cmd, "--dport $rule->{dport}";
e3a1d391 1422 }
4b586518
DM		 1423 }
1424 }
4b586518 1425
181390b0 1426 if ($rule->{sport}) {
e5076eee 1427 if ($nbsport > 1) {
41524a58 1428 push @cmd, "--sports $rule->{sport}" if $multiport != 2;
181390b0 1429 } else {
41524a58 1430 push @cmd, "--sport $rule->{sport}";
181390b0 1431 }
4b586518 1432 }
181390b0 1433 } elsif ($rule->{dport} || $rule->{sport}) {
93d96f83
DM		 1434 die "destination port '$rule->{dport}', but no protocol specified\n" if $rule->{dport};
1435 die "source port '$rule->{sport}', but no protocol specified\n" if $rule->{sport};
4b586518
DM		 1436 }
1437
41524a58 1438 push @cmd, "-m addrtype --dst-type $rule->{dsttype}" if $rule->{dsttype};
4e6112f9
DM		 1439
1440 if (my $action = $rule->{action}) {
cbb5d6f3 1441 $action = $actions->{$action} if defined($actions->{$action});
4e6112f9 1442 $goto = 1 if !defined($goto) && $action eq 'PVEFW-SET-ACCEPT-MARK';
41524a58 1443 push @cmd, $goto ? "-g $action" : "-j $action";
181390b0 1444 }
3a616aa0 1445
eba0fb64
DM		 1446 return scalar(@cmd) ? join(' ', @cmd) : undef;
1447}
1448
1449sub ruleset_generate_rule {
e523d2bb 1450 my ($ruleset, $chain, $rule, $actions, $goto, $cluster_conf, $fw_conf) = @_;
eba0fb64 1451
e5076eee
DM		 1452 my $rules;
1453
1454 if ($rule->{macro}) {
1455 $rules = &$apply_macro($rule->{macro}, $rule);
1456 } else {
1457 $rules = [ $rule ];
1458 }
1459
d4091b82
DM		 1460 # update all or nothing
1461
1462 my @cmds = ();
cbb5d6f3 1463 foreach my $tmp (@$rules) {
e523d2bb 1464 if (my $cmdstr = ruleset_generate_cmdstr($ruleset, $chain, $tmp, $actions, $goto, $cluster_conf, $fw_conf)) {
d4091b82 1465 push @cmds, $cmdstr;
e5076eee 1466 }
41524a58 1467 }
d4091b82
DM		 1468
1469 foreach my $cmdstr (@cmds) {
1470 ruleset_addrule($ruleset, $chain, $cmdstr);
1471 }
3fa83edf 1472}
0f168d7b 1473
eba0fb64
DM		 1474sub ruleset_generate_rule_insert {
1475 my ($ruleset, $chain, $rule, $actions, $goto) = @_;
1476
e5076eee
DM		 1477 die "implement me" if $rule->{macro}; # not implemented, because not needed so far
1478
eba0fb64
DM		 1479 if (my $cmdstr = ruleset_generate_cmdstr($ruleset, $chain, $rule, $actions, $goto)) {
1480 ruleset_insertrule($ruleset, $chain, $cmdstr);
1481 }
1482}
3fa83edf
DM		 1483
1484sub ruleset_create_chain {
1485 my ($ruleset, $chain) = @_;
3a616aa0 1486
d050c724 1487 die "Invalid chain name '$chain' (28 char max)\n" if length($chain) > 28;
782c4cde 1488 die "chain name may not contain collons\n" if $chain =~ m/:/; # because of log format
d050c724 1489
3fa83edf
DM		 1490 die "chain '$chain' already exists\n" if $ruleset->{$chain};
1491
1492 $ruleset->{$chain} = [];
3a616aa0
AD		 1493}
1494
3fa83edf
DM		 1495sub ruleset_chain_exist {
1496 my ($ruleset, $chain) = @_;
3a616aa0 1497
3fa83edf
DM		 1498 return $ruleset->{$chain} ? 1 : undef;
1499}
3a616aa0 1500
3fa83edf
DM		 1501sub ruleset_addrule {
1502 my ($ruleset, $chain, $rule) = @_;
3a616aa0 1503
3fa83edf 1504 die "no such chain '$chain'\n" if !$ruleset->{$chain};
3a616aa0 1505
3fa83edf
DM		 1506 push @{$ruleset->{$chain}}, "-A $chain $rule";
1507}
3a616aa0 1508
3fa83edf
DM		 1509sub ruleset_insertrule {
1510 my ($ruleset, $chain, $rule) = @_;
3a616aa0 1511
3fa83edf 1512 die "no such chain '$chain'\n" if !$ruleset->{$chain};
3a616aa0 1513
3fa83edf
DM		 1514 unshift @{$ruleset->{$chain}}, "-A $chain $rule";
1515}
3a616aa0 1516
782c4cde
DM		 1517sub get_log_rule_base {
1518 my ($chain, $vmid, $msg, $loglevel) = @_;
cbb5d6f3 1519
782c4cde
DM		 1520 die "internal error - no log level" if !defined($loglevel);
1521
1522 $vmid = 0 if !defined($vmid);
1523
cbb5d6f3 1524 # Note: we use special format for prefix to pass further
782c4cde
DM		 1525 # info to log daemon (VMID, LOGVELEL and CHAIN)
1526
1527 return "-j NFLOG --nflog-prefix \":$vmid:$loglevel:$chain: $msg\"";
1528}
1529
1530sub ruleset_addlog {
1531 my ($ruleset, $chain, $vmid, $msg, $loglevel, $rule) = @_;
1532
1533 return if !defined($loglevel);
1534
1535 my $logrule = get_log_rule_base($chain, $vmid, $msg, $loglevel);
1536
1537 $logrule = "$rule $logrule" if defined($rule);
1538
88733a74 1539 ruleset_addrule($ruleset, $chain, $logrule);
782c4cde
DM		 1540}
1541
ead850e8 1542sub ruleset_add_chain_policy {
782c4cde 1543 my ($ruleset, $chain, $vmid, $policy, $loglevel, $accept_action) = @_;
ead850e8
DM		 1544
1545 if ($policy eq 'ACCEPT') {
1546
1547 ruleset_generate_rule($ruleset, $chain, { action => 'ACCEPT' },
1548 { ACCEPT => $accept_action});
1549
1550 } elsif ($policy eq 'DROP') {
1551
1552 ruleset_addrule($ruleset, $chain, "-j PVEFW-Drop");
1553
782c4cde 1554 ruleset_addlog($ruleset, $chain, $vmid, "policy $policy: ", $loglevel);
ead850e8
DM		 1555
1556 ruleset_addrule($ruleset, $chain, "-j DROP");
1557 } elsif ($policy eq 'REJECT') {
1558 ruleset_addrule($ruleset, $chain, "-j PVEFW-Reject");
1559
782c4cde 1560 ruleset_addlog($ruleset, $chain, $vmid, "policy $policy: ", $loglevel);
ead850e8
DM		 1561
1562 ruleset_addrule($ruleset, $chain, "-g PVEFW-reject");
1563 } else {
1564 # should not happen
1565 die "internal error: unknown policy '$policy'";
1566 }
1567}
1568
e2943485
DM		 1569sub ruleset_chain_add_conn_filters {
1570 my ($ruleset, $chain, $accept) = @_;
1571
1572 ruleset_addrule($ruleset, $chain, "-m conntrack --ctstate INVALID -j DROP");
1573 ruleset_addrule($ruleset, $chain, "-m conntrack --ctstate RELATED,ESTABLISHED -j $accept");
1574}
1575
1576sub ruleset_chain_add_input_filters {
2428e394
AD		 1577 my ($ruleset, $chain, $options, $cluster_conf, $loglevel) = @_;
1578
1579 if ($cluster_conf->{ipset}->{blacklist}){
b5831a0d
AD		 1580 if (!ruleset_chain_exist($ruleset, "PVEFW-blacklist")) {
1581 ruleset_create_chain($ruleset, "PVEFW-blacklist");
1582 ruleset_addlog($ruleset, "PVEFW-blacklist", 0, "DROP: ", $loglevel) if $loglevel;
1583 ruleset_addrule($ruleset, "PVEFW-blacklist", "-j DROP");
1584 }
708ba714
DM		 1585 my $ipset_chain = compute_ipset_chain_name(0, 'blacklist');
1586 ruleset_addrule($ruleset, $chain, "-m set --match-set ${ipset_chain} src -j PVEFW-blacklist");
2428e394 1587 }
e2943485
DM		 1588
1589 if (!(defined($options->{nosmurfs}) && $options->{nosmurfs} == 0)) {
1590 ruleset_addrule($ruleset, $chain, "-m conntrack --ctstate INVALID,NEW -j PVEFW-smurfs");
1591 }
1592
1593 if ($options->{tcpflags}) {
1594 ruleset_addrule($ruleset, $chain, "-p tcp -j PVEFW-tcpflags");
1595 }
1596}
1597
9e15114a 1598sub ruleset_create_vm_chain {
58638f2c 1599 my ($ruleset, $chain, $options, $macaddr, $direction) = @_;
3a616aa0 1600
9e15114a 1601 ruleset_create_chain($ruleset, $chain);
b47ecc88 1602 my $accept = generate_nfqueue($options);
3a616aa0 1603
ce15d90b 1604 if (!(defined($options->{dhcp}) && $options->{dhcp} == 0)) {
76a2d1e7 1605 if ($direction eq 'OUT') {
cbb5d6f3 1606 ruleset_generate_rule($ruleset, $chain, { action => 'PVEFW-SET-ACCEPT-MARK',
0f168d7b 1607 proto => 'udp', sport => 68, dport => 67 });
76a2d1e7 1608 } else {
cbb5d6f3 1609 ruleset_generate_rule($ruleset, $chain, { action => 'ACCEPT',
0f168d7b 1610 proto => 'udp', sport => 67, dport => 68 });
76a2d1e7 1611 }
ce15d90b
DM		 1612 }
1613
b21aca2c
DM		 1614 if ($direction eq 'OUT') {
1615 if (defined($macaddr) && !(defined($options->{macfilter}) && $options->{macfilter} == 0)) {
9e15114a 1616 ruleset_addrule($ruleset, $chain, "-m mac ! --mac-source $macaddr -j DROP");
b21aca2c 1617 }
9e15114a 1618 ruleset_addrule($ruleset, $chain, "-j MARK --set-mark 0"); # clear mark
c29f55c9 1619 }
9e15114a
DM		 1620}
1621
4bc6b5ac
DM		 1622sub ruleset_add_group_rule {
1623 my ($ruleset, $cluster_conf, $chain, $rule, $direction, $action) = @_;
1624
1625 my $group = $rule->{action};
1626 my $group_chain = "GROUP-$group-$direction";
1627 if(!ruleset_chain_exist($ruleset, $group_chain)){
1628 generate_group_rules($ruleset, $cluster_conf, $group);
1629 }
bfc488f6 1630
f8b12fff
DM		 1631 if ($direction eq 'OUT' && $rule->{iface_out}) {
1632 ruleset_addrule($ruleset, $chain, "-o $rule->{iface_out} -j $group_chain");
1633 } elsif ($direction eq 'IN' && $rule->{iface_in}) {
1634 ruleset_addrule($ruleset, $chain, "-i $rule->{iface_in} -j $group_chain");
4bc6b5ac
DM		 1635 } else {
1636 ruleset_addrule($ruleset, $chain, "-j $group_chain");
1637 }
1638
1639 ruleset_addrule($ruleset, $chain, "-m mark --mark 1 -j $action");
1640}
1641
9e15114a 1642sub ruleset_generate_vm_rules {
e523d2bb 1643 my ($ruleset, $rules, $cluster_conf, $vmfw_conf, $chain, $netid, $direction, $options) = @_;
9e15114a
DM		 1644
1645 my $lc_direction = lc($direction);
c29f55c9 1646
6b8ca015
DM		 1647 my $in_accept = generate_nfqueue($options);
1648
92e976b3
DM		 1649 foreach my $rule (@$rules) {
1650 next if $rule->{iface} && $rule->{iface} ne $netid;
b7ab6989 1651 next if !$rule->{enable} || $rule->{errors};
92e976b3 1652 if ($rule->{type} eq 'group') {
4bc6b5ac
DM		 1653 ruleset_add_group_rule($ruleset, $cluster_conf, $chain, $rule, $direction,
1654 $direction eq 'OUT' ? 'RETURN' : $in_accept);
92e976b3
DM		 1655 } else {
1656 next if $rule->{type} ne $lc_direction;
921dfb33
DM		 1657 eval {
1658 if ($direction eq 'OUT') {
1659 ruleset_generate_rule($ruleset, $chain, $rule,
e34d0e58 1660 { ACCEPT => "PVEFW-SET-ACCEPT-MARK", REJECT => "PVEFW-reject" },
e523d2bb 1661 undef, $cluster_conf, $vmfw_conf);
921dfb33 1662 } else {
e34d0e58
DM		 1663 ruleset_generate_rule($ruleset, $chain, $rule,
1664 { ACCEPT => $in_accept , REJECT => "PVEFW-reject" },
e523d2bb 1665 undef, $cluster_conf, $vmfw_conf);
921dfb33
DM		 1666 }
1667 };
1668 warn $@ if $@;
4e6112f9 1669 }
3a616aa0 1670 }
9e15114a
DM		 1671}
1672
b47ecc88
AD		 1673sub generate_nfqueue {
1674 my ($options) = @_;
1675
73089769
DM		 1676 if ($options->{ips}) {
1677 my $action = "NFQUEUE";
1678 if ($options->{ips_queues} && $options->{ips_queues} =~ m/^(\d+)(:(\d+))?$/) {
1679 if (defined($3) && defined($1)) {
b47ecc88 1680 $action .= " --queue-balance $1:$3";
73089769 1681 } elsif (defined($1)) {
b47ecc88
AD		 1682 $action .= " --queue-num $1";
1683 }
1684 }
8dc92812 1685 $action .= " --queue-bypass" if $feature_ipset_nomatch; #need kernel 3.10
73089769
DM		 1686 return $action;
1687 } else {
1688 return "ACCEPT";
b47ecc88 1689 }
b47ecc88
AD		 1690}
1691
da6fc60b 1692sub ruleset_generate_vm_ipsrules {
a01c32c7 1693 my ($ruleset, $options, $direction, $iface) = @_;
da6fc60b
AD		 1694
1695 if ($options->{ips} && $direction eq 'IN') {
1696 my $nfqueue = generate_nfqueue($options);
1697
a01c32c7 1698 if (!ruleset_chain_exist($ruleset, "PVEFW-IPS")) {
da6fc60b
AD		 1699 ruleset_create_chain($ruleset, "PVEFW-IPS");
1700 }
1701
a01c32c7 1702 ruleset_addrule($ruleset, "PVEFW-IPS", "-m physdev --physdev-out $iface --physdev-is-bridged -j $nfqueue");
da6fc60b
AD		 1703 }
1704}
1705
9e15114a 1706sub generate_venet_rules_direction {
58638f2c 1707 my ($ruleset, $cluster_conf, $vmfw_conf, $vmid, $ip, $direction) = @_;
9e15114a 1708
9e15114a
DM		 1709 my $lc_direction = lc($direction);
1710
1711 my $rules = $vmfw_conf->{rules};
1712
1713 my $options = $vmfw_conf->{options};
1714 my $loglevel = get_option_log_level($options, "log_level_${lc_direction}");
1715
1716 my $chain = "venet0-$vmid-$direction";
1717
58638f2c 1718 ruleset_create_vm_chain($ruleset, $chain, $options, undef, $direction);
9e15114a 1719
e523d2bb 1720 ruleset_generate_vm_rules($ruleset, $rules, $cluster_conf, $vmfw_conf, $chain, 'venet', $direction);
9e15114a
DM		 1721
1722 # implement policy
1723 my $policy;
1724
1725 if ($direction eq 'OUT') {
1726 $policy = $options->{policy_out} || 'ACCEPT'; # allow everything by default
1727 } else {
1728 $policy = $options->{policy_in} || 'DROP'; # allow nothing by default
1729 }
1730
b47ecc88
AD		 1731 my $accept = generate_nfqueue($options);
1732 my $accept_action = $direction eq 'OUT' ? "PVEFW-SET-ACCEPT-MARK" : $accept;
782c4cde 1733 ruleset_add_chain_policy($ruleset, $chain, $vmid, $policy, $loglevel, $accept_action);
9e15114a 1734
eba0fb64 1735 if ($direction eq 'OUT') {
41389aed 1736 ruleset_generate_rule_insert($ruleset, "PVEFW-VENET-OUT", {
eba0fb64
DM		 1737 action => $chain,
1738 source => $ip,
1739 iface_in => 'venet0'});
1740 } else {
41389aed 1741 ruleset_generate_rule($ruleset, "PVEFW-VENET-IN", {
eba0fb64
DM		 1742 action => $chain,
1743 dest => $ip,
1744 iface_out => 'venet0'});
1745 }
9e15114a
DM		 1746}
1747
1748sub generate_tap_rules_direction {
58638f2c 1749 my ($ruleset, $cluster_conf, $iface, $netid, $macaddr, $vmfw_conf, $vmid, $direction) = @_;
9e15114a
DM		 1750
1751 my $lc_direction = lc($direction);
1752
1753 my $rules = $vmfw_conf->{rules};
1754
1755 my $options = $vmfw_conf->{options};
1756 my $loglevel = get_option_log_level($options, "log_level_${lc_direction}");
1757
1758 my $tapchain = "$iface-$direction";
1759
58638f2c 1760 ruleset_create_vm_chain($ruleset, $tapchain, $options, $macaddr, $direction);
9e15114a 1761
e523d2bb 1762 ruleset_generate_vm_rules($ruleset, $rules, $cluster_conf, $vmfw_conf, $tapchain, $netid, $direction, $options);
3a616aa0 1763
a01c32c7 1764 ruleset_generate_vm_ipsrules($ruleset, $options, $direction, $iface);
da6fc60b 1765
ccae0b50
DM		 1766 # implement policy
1767 my $policy;
1768
1769 if ($direction eq 'OUT') {
72f63fde 1770 $policy = $options->{policy_out} || 'ACCEPT'; # allow everything by default
ccae0b50 1771 } else {
72f63fde 1772 $policy = $options->{policy_in} || 'DROP'; # allow nothing by default
ccae0b50
DM		 1773 }
1774
b47ecc88
AD		 1775 my $accept = generate_nfqueue($options);
1776 my $accept_action = $direction eq 'OUT' ? "PVEFW-SET-ACCEPT-MARK" : $accept;
782c4cde 1777 ruleset_add_chain_policy($ruleset, $tapchain, $vmid, $policy, $loglevel, $accept_action);
3a616aa0 1778
3fa83edf 1779 # plug the tap chain to bridge chain
3cc81077 1780 if ($direction eq 'IN') {
a01c32c7
DM		 1781 ruleset_addrule($ruleset, "PVEFW-FWBR-IN",
1782 "-m physdev --physdev-is-bridged --physdev-out $iface -j $tapchain");
3cc81077 1783 } else {
a01c32c7
DM		 1784 ruleset_addrule($ruleset, "PVEFW-FWBR-OUT",
1785 "-m physdev --physdev-is-bridged --physdev-in $iface -j $tapchain");
3cc81077 1786 }
3a616aa0
AD		 1787}
1788
d18c1e2b 1789sub enable_host_firewall {
fca39c2c 1790 my ($ruleset, $hostfw_conf, $cluster_conf) = @_;
0bd5f137 1791
92e976b3 1792 my $options = $hostfw_conf->{options};
63324b09 1793 my $cluster_options = $cluster_conf->{options};
92e976b3 1794 my $rules = $hostfw_conf->{rules};
35f0c37e 1795 my $cluster_rules = $cluster_conf->{rules};
178a63be 1796
3fa83edf 1797 # host inbound firewall
dec84fcd
DM		 1798 my $chain = "PVEFW-HOST-IN";
1799 ruleset_create_chain($ruleset, $chain);
0bd5f137 1800
178a63be
DM		 1801 my $loglevel = get_option_log_level($options, "log_level_in");
1802
e2943485 1803 ruleset_addrule($ruleset, $chain, "-i lo -j ACCEPT");
4ac863a6 1804
e2943485 1805 ruleset_chain_add_conn_filters($ruleset, $chain, 'ACCEPT');
2428e394 1806 ruleset_chain_add_input_filters($ruleset, $chain, $options, $cluster_conf, $loglevel);
fb424a00 1807
23e888f8
DM		 1808 # we use RETURN because we need to check also tap rules
1809 my $accept_action = 'RETURN';
1810
cc8dc02f
DM		 1811 ruleset_addrule($ruleset, $chain, "-p igmp -j $accept_action"); # important for multicast
1812
35f0c37e
DM		 1813 # add host rules first, so that cluster wide rules can be overwritten
1814 foreach my $rule (@$rules, @$cluster_rules) {
5383df39 1815 next if !$rule->{enable} || $rule->{errors};
bfc488f6 1816
f8b12fff 1817 $rule->{iface_in} = $rule->{iface} if $rule->{iface};
5383df39 1818
1a9978ed
DM		 1819 eval {
1820 if ($rule->{type} eq 'group') {
1821 ruleset_add_group_rule($ruleset, $cluster_conf, $chain, $rule, 'IN', $accept_action);
1822 } elsif ($rule->{type} eq 'in') {
bfc488f6 1823 ruleset_generate_rule($ruleset, $chain, $rule, { ACCEPT => $accept_action, REJECT => "PVEFW-reject" },
e523d2bb 1824 undef, $cluster_conf, $hostfw_conf);
1a9978ed
DM		 1825 }
1826 };
1827 warn $@ if $@;
f8b12fff 1828 delete $rule->{iface_in};
0bd5f137 1829 }
eb399cef
DM		 1830
1831 # allow standard traffic for management ipset (includes cluster network)
708ba714
DM		 1832 my $mngmnt_ipset_chain = compute_ipset_chain_name(0, "management");
1833 my $mngmntsrc = "-m set --match-set ${mngmnt_ipset_chain} src";
eb399cef 1834 ruleset_addrule($ruleset, $chain, "$mngmntsrc -p tcp --dport 8006 -j $accept_action"); # PVE API
bfc488f6 1835 ruleset_addrule($ruleset, $chain, "$mngmntsrc -p tcp --dport 5900:5999 -j $accept_action"); # PVE VNC Console
eb399cef
DM		 1836 ruleset_addrule($ruleset, $chain, "$mngmntsrc -p tcp --dport 3128 -j $accept_action"); # SPICE Proxy
1837 ruleset_addrule($ruleset, $chain, "$mngmntsrc -p tcp --dport 22 -j $accept_action"); # SSH
bfc488f6 1838
525778d7 1839 my $localnet = local_network();
3bc79f87 1840
eb399cef 1841 # corosync
525778d7 1842 if ($localnet) {
c5191f57 1843 my $corosync_rule = "-p udp --dport 5404:5405 -j $accept_action";
525778d7
DM		 1844 ruleset_addrule($ruleset, $chain, "-s $localnet -d $localnet $corosync_rule");
1845 ruleset_addrule($ruleset, $chain, "-s $localnet -m addrtype --dst-type MULTICAST $corosync_rule");
3bc79f87 1846 }
0bd5f137 1847
23e888f8 1848 # implement input policy
63324b09 1849 my $policy = $cluster_options->{policy_in} || 'DROP'; # allow nothing by default
782c4cde 1850 ruleset_add_chain_policy($ruleset, $chain, 0, $policy, $loglevel, $accept_action);
0bd5f137 1851
3fa83edf 1852 # host outbound firewall
aadd745e 1853 $chain = "PVEFW-HOST-OUT";
dec84fcd
DM		 1854 ruleset_create_chain($ruleset, $chain);
1855
178a63be
DM		 1856 $loglevel = get_option_log_level($options, "log_level_out");
1857
dec84fcd 1858 ruleset_addrule($ruleset, $chain, "-o lo -j ACCEPT");
e2943485
DM		 1859
1860 ruleset_chain_add_conn_filters($ruleset, $chain, 'ACCEPT');
1861
23e888f8
DM		 1862 # we use RETURN because we may want to check other thigs later
1863 $accept_action = 'RETURN';
1864
cc8dc02f
DM		 1865 ruleset_addrule($ruleset, $chain, "-p igmp -j $accept_action"); # important for multicast
1866
35f0c37e
DM		 1867 # add host rules first, so that cluster wide rules can be overwritten
1868 foreach my $rule (@$rules, @$cluster_rules) {
5383df39
DM		 1869 next if !$rule->{enable} || $rule->{errors};
1870
f8b12fff 1871 $rule->{iface_out} = $rule->{iface} if $rule->{iface};
1a9978ed
DM		 1872 eval {
1873 if ($rule->{type} eq 'group') {
1874 ruleset_add_group_rule($ruleset, $cluster_conf, $chain, $rule, 'OUT', $accept_action);
1875 } elsif ($rule->{type} eq 'out') {
bfc488f6 1876 ruleset_generate_rule($ruleset, $chain, $rule, { ACCEPT => $accept_action, REJECT => "PVEFW-reject" },
e523d2bb 1877 undef, $cluster_conf, $hostfw_conf);
1a9978ed
DM		 1878 }
1879 };
1880 warn $@ if $@;
f8b12fff 1881 delete $rule->{iface_out};
0bd5f137
AD		 1882 }
1883
3bc79f87 1884 # allow standard traffic on cluster network
525778d7
DM		 1885 if ($localnet) {
1886 ruleset_addrule($ruleset, $chain, "-d $localnet -p tcp --dport 8006 -j $accept_action"); # PVE API
1887 ruleset_addrule($ruleset, $chain, "-d $localnet -p tcp --dport 22 -j $accept_action"); # SSH
bfc488f6 1888 ruleset_addrule($ruleset, $chain, "-d $localnet -p tcp --dport 5900:5999 -j $accept_action"); # PVE VNC Console
525778d7 1889 ruleset_addrule($ruleset, $chain, "-d $localnet -p tcp --dport 3128 -j $accept_action"); # SPICE Proxy
bfc488f6 1890
c5191f57 1891 my $corosync_rule = "-p udp --dport 5404:5405 -j $accept_action";
525778d7 1892 ruleset_addrule($ruleset, $chain, "-d $localnet $corosync_rule");
f573ae2c 1893 ruleset_addrule($ruleset, $chain, "-m addrtype --dst-type MULTICAST $corosync_rule");
3bc79f87
DM		 1894 }
1895
23e888f8 1896 # implement output policy
63324b09 1897 $policy = $cluster_options->{policy_out} || 'ACCEPT'; # allow everything by default
782c4cde 1898 ruleset_add_chain_policy($ruleset, $chain, 0, $policy, $loglevel, $accept_action);
6158271d 1899
dec84fcd
DM		 1900 ruleset_addrule($ruleset, "PVEFW-OUTPUT", "-j PVEFW-HOST-OUT");
1901 ruleset_addrule($ruleset, "PVEFW-INPUT", "-j PVEFW-HOST-IN");
9d31b418
AD		 1902}
1903
1904sub generate_group_rules {
fca39c2c 1905 my ($ruleset, $cluster_conf, $group) = @_;
9d31b418 1906
c6f5cc88 1907 my $rules = $cluster_conf->{groups}->{$group};
6158271d 1908
b4deedab
DM		 1909 if (!$rules) {
1910 warn "no such security group '$group'\n";
1911 $rules = []; # create empty chain
1912 }
1913
3fa83edf 1914 my $chain = "GROUP-${group}-IN";
9d31b418 1915
3fa83edf 1916 ruleset_create_chain($ruleset, $chain);
b47ecc88 1917 ruleset_addrule($ruleset, $chain, "-j MARK --set-mark 0"); # clear mark
9d31b418 1918
92e976b3
DM		 1919 foreach my $rule (@$rules) {
1920 next if $rule->{type} ne 'in';
ba791b1f 1921 ruleset_generate_rule($ruleset, $chain, $rule, { ACCEPT => "PVEFW-SET-ACCEPT-MARK", REJECT => "PVEFW-reject" }, undef, $cluster_conf);
9d31b418
AD		 1922 }
1923
3fa83edf 1924 $chain = "GROUP-${group}-OUT";
9d31b418 1925
3fa83edf 1926 ruleset_create_chain($ruleset, $chain);
4e6112f9 1927 ruleset_addrule($ruleset, $chain, "-j MARK --set-mark 0"); # clear mark
9d31b418 1928
92e976b3
DM		 1929 foreach my $rule (@$rules) {
1930 next if $rule->{type} ne 'out';
1931 # we use PVEFW-SET-ACCEPT-MARK (Instead of ACCEPT) because we need to
1932 # check also other tap rules later
cbb5d6f3 1933 ruleset_generate_rule($ruleset, $chain, $rule,
ba791b1f 1934 { ACCEPT => 'PVEFW-SET-ACCEPT-MARK', REJECT => "PVEFW-reject" }, undef, $cluster_conf);
9d31b418 1935 }
9d31b418
AD		 1936}
1937
51bae274
DM		 1938my $MAX_NETS = 32;
1939my $valid_netdev_names = {};
1940for (my $i = 0; $i < $MAX_NETS; $i++) {
1941 $valid_netdev_names->{"net$i"} = 1;
1942}
5e1267a5 1943
51bae274 1944sub parse_fw_rule {
a523e057 1945 my ($prefix, $line, $cluster_conf, $fw_conf, $rule_env, $verbose) = @_;
5e1267a5 1946
dba740a9 1947 chomp $line;
51bae274 1948
d4cda423
DM		 1949 my $orig_line = $line;
1950
6d9246e7
DM		 1951 my $rule = {};
1952
11bac5c2 1953 # we can add single line comments to the end of the rule
6d9246e7
DM		 1954 if ($line =~ s/#\s*(.*?)\s*$//) {
1955 $rule->{comment} = decode('utf8', $1);
1956 }
11bac5c2
DM		 1957
1958 # we can disable a rule when prefixed with '|'
ea9e5116 1959
6d9246e7 1960 $rule->{enable} = $line =~ s/^\|// ? 0 : 1;
51bae274 1961
dba740a9
DM		 1962 $line =~ s/^(\S+)\s+(\S+)\s*// ||
1963 die "unable to parse rule: $line\n";
6d9246e7
DM		 1964
1965 $rule->{type} = lc($1);
1966 $rule->{action} = $2;
1967
1968 if ($rule->{type} eq 'in' || $rule->{type} eq 'out') {
1969 if ($rule->{action} =~ m/^(\S+)\((ACCEPT|DROP|REJECT)\)$/) {
1970 $rule->{macro} = $1;
1971 $rule->{action} = $2;
92e976b3 1972 }
51bae274
DM		 1973 }
1974
dba740a9
DM		 1975 while (length($line)) {
1976 if ($line =~ s/^-i (\S+)\s*//) {
6d9246e7 1977 $rule->{iface} = $1;
dba740a9
DM		 1978 next;
1979 }
51bae274 1980
6d9246e7 1981 last if $rule->{type} eq 'group';
51bae274 1982
dba740a9 1983 if ($line =~ s/^-p (\S+)\s*//) {
6d9246e7 1984 $rule->{proto} = $1;
dba740a9
DM		 1985 next;
1986 }
6d9246e7 1987
dba740a9 1988 if ($line =~ s/^-dport (\S+)\s*//) {
6d9246e7 1989 $rule->{dport} = $1;
dba740a9
DM		 1990 next;
1991 }
6d9246e7 1992
dba740a9 1993 if ($line =~ s/^-sport (\S+)\s*//) {
6d9246e7 1994 $rule->{sport} = $1;
dba740a9
DM		 1995 next;
1996 }
1997 if ($line =~ s/^-source (\S+)\s*//) {
6d9246e7 1998 $rule->{source} = $1;
dba740a9
DM		 1999 next;
2000 }
2001 if ($line =~ s/^-dest (\S+)\s*//) {
6d9246e7 2002 $rule->{dest} = $1;
dba740a9
DM		 2003 next;
2004 }
51bae274 2005
dba740a9
DM		 2006 last;
2007 }
ba791b1f 2008
dba740a9 2009 die "unable to parse rule parameters: $line\n" if length($line);
51bae274 2010
a523e057 2011 $rule = verify_rule($rule, $cluster_conf, $fw_conf, $rule_env, 1);
d4cda423
DM		 2012 if ($verbose && $rule->{errors}) {
2013 warn "$prefix - errors in rule parameters: $orig_line\n";
2014 foreach my $p (keys %{$rule->{errors}}) {
2015 warn " $p: $rule->{errors}->{$p}\n";
2016 }
2017 }
6d9246e7
DM		 2018
2019 return $rule;
51bae274
DM		 2020}
2021
2d404ffc 2022sub parse_vmfw_option {
85c6eaed
DM		 2023 my ($line) = @_;
2024
2025 my ($opt, $value);
2026
178a63be
DM		 2027 my $loglevels = "emerg|alert|crit|err|warning|notice|info|debug|nolog";
2028
6bafd113 2029 if ($line =~ m/^(enable|dhcp|macfilter|ips):\s*(0|1)\s*$/i) {
9c6b6efd
DM		 2030 $opt = lc($1);
2031 $value = int($2);
178a63be
DM		 2032 } elsif ($line =~ m/^(log_level_in|log_level_out):\s*(($loglevels)\s*)?$/i) {
2033 $opt = lc($1);
2034 $value = $2 ? lc($3) : '';
72f63fde 2035 } elsif ($line =~ m/^(policy_(in|out)):\s*(ACCEPT|DROP|REJECT)\s*$/i) {
85c6eaed
DM		 2036 $opt = lc($1);
2037 $value = uc($3);
b47ecc88
AD		 2038 } elsif ($line =~ m/^(ips_queues):\s*((\d+)(:(\d+))?)\s*$/i) {
2039 $opt = lc($1);
2040 $value = $2;
9c6b6efd 2041 } else {
85c6eaed
DM		 2042 chomp $line;
2043 die "can't parse option '$line'\n"
2044 }
2045
2046 return ($opt, $value);
2047}
2048
2d404ffc
DM		 2049sub parse_hostfw_option {
2050 my ($line) = @_;
2051
2052 my ($opt, $value);
2053
2054 my $loglevels = "emerg|alert|crit|err|warning|notice|info|debug|nolog";
2055
c50a5a68 2056 if ($line =~ m/^(enable|nosmurfs|tcpflags):\s*(0|1)\s*$/i) {
2d404ffc
DM		 2057 $opt = lc($1);
2058 $value = int($2);
178a63be 2059 } elsif ($line =~ m/^(log_level_in|log_level_out|tcp_flags_log_level|smurf_log_level):\s*(($loglevels)\s*)?$/i) {
2d404ffc
DM		 2060 $opt = lc($1);
2061 $value = $2 ? lc($3) : '';
28c082a1 2062 } elsif ($line =~ m/^(nf_conntrack_max|nf_conntrack_tcp_timeout_established):\s*(\d+)\s*$/i) {
490cdead
DM		 2063 $opt = lc($1);
2064 $value = int($2);
2d404ffc
DM		 2065 } else {
2066 chomp $line;
2067 die "can't parse option '$line'\n"
2068 }
2069
2070 return ($opt, $value);
2071}
2072
c6f5cc88
DM		 2073sub parse_clusterfw_option {
2074 my ($line) = @_;
2075
2076 my ($opt, $value);
2077
2078 if ($line =~ m/^(enable):\s*(0|1)\s*$/i) {
2079 $opt = lc($1);
2080 $value = int($2);
63324b09
DM		 2081 } elsif ($line =~ m/^(policy_(in|out)):\s*(ACCEPT|DROP|REJECT)\s*$/i) {
2082 $opt = lc($1);
2083 $value = uc($3);
c6f5cc88
DM		 2084 } else {
2085 chomp $line;
2086 die "can't parse option '$line'\n"
2087 }
2088
2089 return ($opt, $value);
2090}
2091
e76a9f53 2092sub parse_alias {
92e1209b
AD		 2093 my ($line) = @_;
2094
81d574a7
DM		 2095 # we can add single line comments to the end of the line
2096 my $comment = decode('utf8', $1) if $line =~ s/\s*#\s*(.*?)\s*$//;
2097
92e1209b 2098 if ($line =~ m/^(\S+)\s(\S+)$/) {
81d574a7
DM		 2099 my ($name, $cidr) = ($1, $2);
2100 $cidr =~ s|/32$||;
2101 pve_verify_ipv4_or_cidr($cidr);
2102 my $data = {
2103 name => $name,
2104 cidr => $cidr,
2105 };
2106 $data->{comment} = $comment if $comment;
2107 return $data;
92e1209b
AD		 2108 }
2109
81d574a7 2110 return undef;
92e1209b
AD		 2111}
2112
1210ae94
DM		 2113sub generic_fw_rules_parser {
2114 my ($filename, $fh, $verbose, $cluster_conf, $empty_conf, $rule_env) = @_;
5e1267a5 2115
51bae274
DM		 2116 my $section;
2117 my $group;
2118
1210ae94 2119 my $res = $empty_conf;
6158271d 2120
51bae274
DM		 2121 while (defined(my $line = <$fh>)) {
2122 next if $line =~ m/^#/;
2123 next if $line =~ m/^\s*$/;
2124
961b4928
DM		 2125 my $linenr = $fh->input_line_number();
2126 my $prefix = "$filename (line $linenr)";
2127
1210ae94 2128 if ($empty_conf->{options} && ($line =~ m/^\[options\]$/i)) {
c6f5cc88
DM		 2129 $section = 'options';
2130 next;
2131 }
2132
1210ae94 2133 if ($empty_conf->{aliases} && ($line =~ m/^\[aliases\]$/i)) {
92e1209b
AD		 2134 $section = 'aliases';
2135 next;
2136 }
2137
1210ae94 2138 if ($empty_conf->{groups} && ($line =~ m/^\[group\s+(\S+)\]\s*(?:#\s*(.*?)\s*)?$/i)) {
c6f5cc88 2139 $section = 'groups';
92e976b3 2140 $group = lc($1);
0d22acb3 2141 my $comment = $2;
c85c87f9 2142 $res->{$section}->{$group} = [];
649e4d57
DM		 2143 $res->{group_comments}->{$group} = decode('utf8', $comment)
2144 if $comment;
51bae274
DM		 2145 next;
2146 }
34cdedfa 2147
1210ae94 2148 if ($empty_conf->{rules} && ($line =~ m/^\[rules\]$/i)) {
c6f5cc88
DM		 2149 $section = 'rules';
2150 next;
2151 }
cbb5d6f3 2152
1210ae94 2153 if ($empty_conf->{ipset} && ($line =~ m/^\[ipset\s+(\S+)\]\s*(?:#\s*(.*?)\s*)?$/i)) {
34cdedfa
AD		 2154 $section = 'ipset';
2155 $group = lc($1);
d72c631c 2156 my $comment = $2;
c85c87f9 2157 $res->{$section}->{$group} = [];
e34d0e58 2158 $res->{ipset_comments}->{$group} = decode('utf8', $comment)
649e4d57 2159 if $comment;
34cdedfa
AD		 2160 next;
2161 }
2162
c6f5cc88 2163 if (!$section) {
cbb5d6f3 2164 warn "$prefix: skip line - no section\n";
51bae274
DM		 2165 next;
2166 }
2167
c6f5cc88
DM		 2168 if ($section eq 'options') {
2169 eval {
1210ae94
DM		 2170 my ($opt, $value);
2171 if ($rule_env eq 'cluster') {
2172 ($opt, $value) = parse_clusterfw_option($line);
2173 } elsif ($rule_env eq 'host') {
2174 ($opt, $value) = parse_hostfw_option($line);
2175 } else {
2176 ($opt, $value) = parse_vmfw_option($line);
2177 }
c6f5cc88
DM		 2178 $res->{options}->{$opt} = $value;
2179 };
2180 warn "$prefix: $@" if $@;
92e1209b
AD		 2181 } elsif ($section eq 'aliases') {
2182 eval {
e76a9f53 2183 my $data = parse_alias($line);
81d574a7 2184 $res->{aliases}->{lc($data->{name})} = $data;
92e1209b
AD		 2185 };
2186 warn "$prefix: $@" if $@;
c6f5cc88
DM		 2187 } elsif ($section eq 'rules') {
2188 my $rule;
1210ae94 2189 eval { $rule = parse_fw_rule($prefix, $line, $cluster_conf, $res, $rule_env, $verbose); };
c6f5cc88
DM		 2190 if (my $err = $@) {
2191 warn "$prefix: $err";
2192 next;
2193 }
2194 push @{$res->{$section}}, $rule;
2195 } elsif ($section eq 'groups') {
34cdedfa 2196 my $rule;
1210ae94 2197 eval { $rule = parse_fw_rule($prefix, $line, $cluster_conf, undef, 'group', $verbose); };
34cdedfa
AD		 2198 if (my $err = $@) {
2199 warn "$prefix: $err";
2200 next;
2201 }
3f95d14a 2202 push @{$res->{$section}->{$group}}, $rule;
3f95d14a 2203 } elsif ($section eq 'ipset') {
9d6f90e6
DM		 2204 # we can add single line comments to the end of the rule
2205 my $comment = decode('utf8', $1) if $line =~ s/#\s*(.*?)\s*$//;
2206
30f1b100 2207 $line =~ m/^(\!)?\s*(\S+)\s*$/;
2a052ee3 2208 my $nomatch = $1;
9d6f90e6 2209 my $cidr = $2;
2a052ee3 2210
44be8ceb 2211 if($cidr !~ m/^${ip_alias_pattern}$/) {
92e1209b 2212 $cidr =~ s|/32$||;
e34d0e58 2213
92e1209b
AD		 2214 eval { pve_verify_ipv4_or_cidr($cidr); };
2215 if (my $err = $@) {
2216 warn "$prefix: $cidr - $err";
2217 next;
2218 }
2a052ee3 2219 }
2a052ee3 2220
e34d0e58 2221 my $entry = { cidr => $cidr };
9d6f90e6
DM		 2222 $entry->{nomatch} = 1 if $nomatch;
2223 $entry->{comment} = $comment if $comment;
e34d0e58 2224
9d6f90e6 2225 push @{$res->{$section}->{$group}}, $entry;
1210ae94
DM		 2226 } else {
2227 warn "$prefix: skip line - unknown section\n";
2228 next;
51bae274 2229 }
5e1267a5
DM		 2230 }
2231
2232 return $res;
2233}
2234
1210ae94
DM		 2235sub parse_host_fw_rules {
2236 my ($filename, $fh, $cluster_conf, $verbose) = @_;
2237
2238 my $empty_conf = { rules => [], options => {}};
2239
2240 return generic_fw_rules_parser($filename, $fh, $verbose, $cluster_conf, $empty_conf, 'host');
2241}
2242
2243sub parse_vm_fw_rules {
2244 my ($filename, $fh, $cluster_conf, $rule_env, $verbose) = @_;
2245
2246 my $empty_conf = {
2247 rules => [],
2248 options => {},
2249 aliases => {},
2250 ipset => {} ,
2251 ipset_comments => {},
2252 };
2253
2254 return generic_fw_rules_parser($filename, $fh, $verbose, $cluster_conf, $empty_conf, $rule_env);
2255}
2256
2257sub parse_cluster_fw_rules {
2258 my ($filename, $fh, $verbose) = @_;
2259
2260 my $section;
2261 my $group;
2262
2263 my $empty_conf = {
2264 rules => [],
2265 options => {},
2266 aliases => {},
2267 groups => {},
2268 group_comments => {},
2269 ipset => {} ,
2270 ipset_comments => {},
2271 };
2272
2273 return generic_fw_rules_parser($filename, $fh, $verbose, $empty_conf, $empty_conf, 'cluster');
2274}
2275
06320eb0
DM		 2276sub run_locked {
2277 my ($code, @param) = @_;
2278
2279 my $timeout = 10;
2280
2281 my $res = lock_file($pve_fw_lock_filename, $timeout, $code, @param);
2282
2283 die $@ if $@;
2284
2285 return $res;
2286}
2287
5e1267a5
DM		 2288sub read_local_vm_config {
2289
2290 my $openvz = {};
5e1267a5
DM		 2291 my $qemu = {};
2292
c8301d63 2293 my $vmdata = { openvz => $openvz, qemu => $qemu };
5e1267a5 2294
c8301d63
DM		 2295 my $vmlist = PVE::Cluster::get_vmlist();
2296 return $vmdata if !$vmlist || !$vmlist->{ids};
2297 my $ids = $vmlist->{ids};
2298
2299 foreach my $vmid (keys %$ids) {
2300 next if !$vmid; # skip VE0
2301 my $d = $ids->{$vmid};
2302 next if !$d->{node} || $d->{node} ne $nodename;
2303 next if !$d->{type};
2304 if ($d->{type} eq 'openvz') {
d9fee004
DM		 2305 if ($have_pve_manager) {
2306 my $cfspath = PVE::OpenVZ::cfs_config_path($vmid);
2307 if (my $conf = PVE::Cluster::cfs_read_file($cfspath)) {
2308 $openvz->{$vmid} = $conf;
2309 }
c8301d63
DM		 2310 }
2311 } elsif ($d->{type} eq 'qemu') {
d9fee004
DM		 2312 if ($have_qemu_server) {
2313 my $cfspath = PVE::QemuServer::cfs_config_path($vmid);
2314 if (my $conf = PVE::Cluster::cfs_read_file($cfspath)) {
2315 $qemu->{$vmid} = $conf;
2316 }
c8301d63 2317 }
5e1267a5
DM		 2318 }
2319 }
d9fee004 2320
5e1267a5
DM		 2321 return $vmdata;
2322};
2323
e7b35711 2324sub load_vmfw_conf {
a523e057 2325 my ($cluster_conf, $rule_env, $vmid, $dir, $verbose) = @_;
e7b35711
DM		 2326
2327 my $vmfw_conf = {};
2328
8aef5177
DM		 2329 $dir = "/etc/pve/firewall" if !defined($dir);
2330
2331 my $filename = "$dir/$vmid.fw";
e7b35711 2332 if (my $fh = IO::File->new($filename, O_RDONLY)) {
a523e057 2333 $vmfw_conf = parse_vm_fw_rules($filename, $fh, $cluster_conf, $rule_env, $verbose);
708ba714 2334 $vmfw_conf->{vmid} = $vmid;
e7b35711
DM		 2335 }
2336
2337 return $vmfw_conf;
2338}
2339
464f933e 2340my $format_rules = sub {
dba740a9 2341 my ($rules, $allow_iface) = @_;
464f933e
DM		 2342
2343 my $raw = '';
2344
2345 foreach my $rule (@$rules) {
c14dacdf 2346 if ($rule->{type} eq 'in' || $rule->{type} eq 'out' || $rule->{type} eq 'group') {
464f933e
DM		 2347 $raw .= '|' if defined($rule->{enable}) && !$rule->{enable};
2348 $raw .= uc($rule->{type});
7ca36671
DM		 2349 if ($rule->{macro}) {
2350 $raw .= " $rule->{macro}($rule->{action})";
2351 } else {
2352 $raw .= " " . $rule->{action};
2353 }
dba740a9
DM		 2354 if ($allow_iface && $rule->{iface}) {
2355 $raw .= " -i $rule->{iface}";
2356 }
c14dacdf
DM		 2357
2358 if ($rule->{type} ne 'group') {
dba740a9
DM		 2359 $raw .= " -source $rule->{source}" if $rule->{source};
2360 $raw .= " -dest $rule->{dest}" if $rule->{dest};
2361 $raw .= " -p $rule->{proto}" if $rule->{proto};
2362 $raw .= " -dport $rule->{dport}" if $rule->{dport};
2363 $raw .= " -sport $rule->{sport}" if $rule->{sport};
c14dacdf
DM		 2364 }
2365
cbb5d6f3 2366 $raw .= " # " . encode('utf8', $rule->{comment})
464f933e
DM		 2367 if $rule->{comment} && $rule->{comment} !~ m/^\s*$/;
2368 $raw .= "\n";
2369 } else {
c14dacdf 2370 die "unknown rule type '$rule->{type}'";
464f933e
DM		 2371 }
2372 }
2373
2374 return $raw;
2375};
2376
2377my $format_options = sub {
68c90e21
DM		 2378 my ($options) = @_;
2379
2380 my $raw = '';
464f933e
DM		 2381
2382 $raw .= "[OPTIONS]\n\n";
2383 foreach my $opt (keys %$options) {
2384 $raw .= "$opt: $options->{$opt}\n";
2385 }
2386 $raw .= "\n";
68c90e21
DM		 2387
2388 return $raw;
464f933e
DM		 2389};
2390
0d5f0a0f
DM		 2391my $format_aliases = sub {
2392 my ($aliases) = @_;
2393
2394 my $raw = '';
2395
2396 $raw .= "[ALIASES]\n\n";
2397 foreach my $k (keys %$aliases) {
81d574a7
DM		 2398 my $e = $aliases->{$k};
2399 $raw .= "$e->{name} $e->{cidr}";
2400 $raw .= " # " . encode('utf8', $e->{comment})
2401 if $e->{comment} && $e->{comment} !~ m/^\s*$/;
2402 $raw .= "\n";
0d5f0a0f
DM		 2403 }
2404 $raw .= "\n";
2405
2406 return $raw;
2407};
2408
1210ae94
DM		 2409my $format_ipsets = sub {
2410 my ($fw_conf) = @_;
2411
9d6f90e6
DM		 2412 my $raw = '';
2413
1210ae94
DM		 2414 foreach my $ipset (sort keys %{$fw_conf->{ipset}}) {
2415 if (my $comment = $fw_conf->{ipset_comments}->{$ipset}) {
2416 my $utf8comment = encode('utf8', $comment);
2417 $raw .= "[IPSET $ipset] # $utf8comment\n\n";
2418 } else {
2419 $raw .= "[IPSET $ipset]\n\n";
2420 }
2421 my $options = $fw_conf->{ipset}->{$ipset};
6e299ae3 2422
1210ae94
DM		 2423 my $nethash = {};
2424 foreach my $entry (@$options) {
2425 $nethash->{$entry->{cidr}} = $entry;
2426 }
2427
2428 foreach my $cidr (sort keys %$nethash) {
2429 my $entry = $nethash->{$cidr};
2430 my $line = $entry->{nomatch} ? '!' : '';
2431 $line .= $entry->{cidr};
2432 $line .= " # " . encode('utf8', $entry->{comment})
2433 if $entry->{comment} && $entry->{comment} !~ m/^\s*$/;
2434 $raw .= "$line\n";
2435 }
2436
2437 $raw .= "\n";
9d6f90e6 2438 }
e34d0e58 2439
9d6f90e6
DM		 2440 return $raw;
2441};
2442
464f933e
DM		 2443sub save_vmfw_conf {
2444 my ($vmid, $vmfw_conf) = @_;
2445
2446 my $raw = '';
2447
2448 my $options = $vmfw_conf->{options};
68c90e21 2449 $raw .= &$format_options($options) if scalar(keys %$options);
cbb5d6f3 2450
e76a9f53
DM		 2451 my $aliases = $vmfw_conf->{aliases};
2452 $raw .= &$format_aliases($aliases) if scalar(keys %$aliases);
2453
1210ae94
DM		 2454 $raw .= &$format_ipsets($vmfw_conf);
2455
8824b2f0 2456 my $rules = $vmfw_conf->{rules} || [];
464f933e
DM		 2457 if (scalar(@$rules)) {
2458 $raw .= "[RULES]\n\n";
2459 $raw .= &$format_rules($rules, 1);
2460 $raw .= "\n";
2461 }
2462
2463 my $filename = "/etc/pve/firewall/$vmid.fw";
2464 PVE::Tools::file_set_contents($filename, $raw);
2465}
2466
6fc63ffd 2467sub read_vm_firewall_configs {
a523e057 2468 my ($cluster_conf, $vmdata, $dir, $verbose) = @_;
8aef5177 2469
6fc63ffd 2470 my $vmfw_configs = {};
c8301d63 2471
b6b8e6ad 2472 foreach my $vmid (keys %{$vmdata->{qemu}}) {
a523e057 2473 my $vmfw_conf = load_vmfw_conf($cluster_conf, 'vm', $vmid, $dir, $verbose);
b6b8e6ad
DM		 2474 next if !$vmfw_conf->{options}; # skip if file does not exists
2475 $vmfw_configs->{$vmid} = $vmfw_conf;
2476 }
2477 foreach my $vmid (keys %{$vmdata->{openvz}}) {
a523e057 2478 my $vmfw_conf = load_vmfw_conf($cluster_conf, 'ct', $vmid, $dir, $verbose);
e7b35711
DM		 2479 next if !$vmfw_conf->{options}; # skip if file does not exists
2480 $vmfw_configs->{$vmid} = $vmfw_conf;
5e1267a5
DM		 2481 }
2482
6fc63ffd 2483 return $vmfw_configs;
5e1267a5
DM		 2484}
2485
2d404ffc
DM		 2486sub get_option_log_level {
2487 my ($options, $k) = @_;
2488
2489 my $v = $options->{$k};
178a63be 2490 $v = $default_log_level if !defined($v);
2d404ffc
DM		 2491
2492 return undef if $v eq '' || $v eq 'nolog';
2493
2494 $v = $log_level_hash->{$v} if defined($log_level_hash->{$v});
2495
2496 return $v if ($v >= 0) && ($v <= 7);
2497
2498 warn "unknown log level ($k = '$v')\n";
2499
2500 return undef;
2501}
2502
d8f2505e 2503sub generate_std_chains {
2d404ffc 2504 my ($ruleset, $options) = @_;
cbb5d6f3 2505
2d404ffc
DM		 2506 my $loglevel = get_option_log_level($options, 'smurf_log_level');
2507
2508 # same as shorewall smurflog.
782c4cde 2509 my $chain = 'PVEFW-smurflog';
12f3796e 2510 $pve_std_chains->{$chain} = [];
782c4cde
DM		 2511
2512 push @{$pve_std_chains->{$chain}}, get_log_rule_base($chain, 0, "DROP: ", $loglevel) if $loglevel;
2513 push @{$pve_std_chains->{$chain}}, "-j DROP";
2d404ffc
DM		 2514
2515 # same as shorewall logflags action.
2516 $loglevel = get_option_log_level($options, 'tcp_flags_log_level');
782c4cde 2517 $chain = 'PVEFW-logflags';
12f3796e
DM		 2518 $pve_std_chains->{$chain} = [];
2519
782c4cde
DM		 2520 # fixme: is this correctly logged by pvewf-logger? (ther is no --log-ip-options for NFLOG)
2521 push @{$pve_std_chains->{$chain}}, get_log_rule_base($chain, 0, "DROP: ", $loglevel) if $loglevel;
2522 push @{$pve_std_chains->{$chain}}, "-j DROP";
d8f2505e
DM		 2523
2524 foreach my $chain (keys %$pve_std_chains) {
2525 ruleset_create_chain($ruleset, $chain);
2526 foreach my $rule (@{$pve_std_chains->{$chain}}) {
2527 if (ref($rule)) {
2528 ruleset_generate_rule($ruleset, $chain, $rule);
2529 } else {
2530 ruleset_addrule($ruleset, $chain, $rule);
2531 }
2532 }
2533 }
2534}
2535
34cdedfa 2536sub generate_ipset_chains {
708ba714 2537 my ($ipset_ruleset, $clusterfw_conf, $fw_conf) = @_;
34cdedfa 2538
dd7a13fd 2539 foreach my $ipset (keys %{$fw_conf->{ipset}}) {
708ba714
DM		 2540 my $ipset_chain = compute_ipset_chain_name($fw_conf->{vmid}, $ipset);
2541 generate_ipset($ipset_ruleset, $ipset_chain, $fw_conf->{ipset}->{$ipset}, $clusterfw_conf, $fw_conf);
34cdedfa
AD		 2542 }
2543}
2544
2545sub generate_ipset {
708ba714
DM		 2546 my ($ipset_ruleset, $name, $options, $clusterfw_conf, $fw_conf) = @_;
2547
2548 die "duplicate ipset chain '$name'\n" if defined($ipset_ruleset->{$name});
34cdedfa 2549
dd7a13fd
DM		 2550 my $hashsize = scalar(@$options);
2551 if ($hashsize <= 64) {
2a052ee3 2552 $hashsize = 64;
dd7a13fd 2553 } else {
2a052ee3
AD		 2554 $hashsize = round_powerof2($hashsize);
2555 }
2556
708ba714 2557 $ipset_ruleset->{$name} = ["create $name hash:net family inet hashsize $hashsize maxelem $hashsize"];
34cdedfa 2558
30f1b100
DM		 2559 # remove duplicates
2560 my $nethash = {};
9d6f90e6 2561 foreach my $entry (@$options) {
92e1209b 2562 my $cidr = $entry->{cidr};
d4091b82 2563 if ($cidr =~ m/^${ip_alias_pattern}$/) {
81d574a7 2564 my $alias = lc($cidr);
708ba714
DM		 2565 my $e = $fw_conf->{aliases}->{$alias} if $fw_conf;
2566 $e = $clusterfw_conf->{aliases}->{$alias} if !$e && $clusterfw_conf;
2567 if ($e) {
2568 $entry->{cidr} = $e->{cidr};
7dd13259 2569 $nethash->{$entry->{cidr}} = $entry;
d4091b82 2570 } else {
708ba714 2571 warn "no such alias '$cidr'\n";
d4091b82 2572 }
7dd13259
DM		 2573 } else {
2574 $nethash->{$entry->{cidr}} = $entry;
92e1209b 2575 }
30f1b100
DM		 2576 }
2577
2578 foreach my $cidr (sort keys %$nethash) {
2579 my $entry = $nethash->{$cidr};
2580
9d6f90e6
DM		 2581 my $cmd = "add $name $cidr";
2582 if ($entry->{nomatch}) {
2583 if ($feature_ipset_nomatch) {
2584 push @{$ipset_ruleset->{$name}}, "$cmd nomatch";
2585 } else {
2586 warn "ignore !$cidr - nomatch not supported by kernel\n";
2587 }
2588 } else {
2589 push @{$ipset_ruleset->{$name}}, $cmd;
2590 }
34cdedfa 2591 }
2a052ee3
AD		 2592}
2593
2594sub round_powerof2 {
dd7a13fd 2595 my ($int) = @_;
2a052ee3 2596
dd7a13fd
DM		 2597 $int--;
2598 $int |= $int >> $_ foreach (1,2,4,8,16);
2599 return ++$int;
34cdedfa
AD		 2600}
2601
fca39c2c 2602sub load_clusterfw_conf {
d4cda423 2603 my ($filename, $verbose) = @_;
8aef5177
DM		 2604
2605 $filename = $clusterfw_conf_filename if !defined($filename);
530c005e 2606
fca39c2c 2607 my $cluster_conf = {};
8aef5177 2608 if (my $fh = IO::File->new($filename, O_RDONLY)) {
d4cda423 2609 $cluster_conf = parse_cluster_fw_rules($filename, $fh, $verbose);
51bae274 2610 }
5e1267a5 2611
fca39c2c 2612 return $cluster_conf;
e5d76bde
DM		 2613}
2614
fca39c2c
DM		 2615sub save_clusterfw_conf {
2616 my ($cluster_conf) = @_;
9c7e0858
DM		 2617
2618 my $raw = '';
9c7e0858 2619
c6f5cc88 2620 my $options = $cluster_conf->{options};
68c90e21 2621 $raw .= &$format_options($options) if scalar(keys %$options);
9c7e0858 2622
0d5f0a0f
DM		 2623 my $aliases = $cluster_conf->{aliases};
2624 $raw .= &$format_aliases($aliases) if scalar(keys %$aliases);
e34d0e58 2625
1210ae94
DM		 2626 $raw .= &$format_ipsets($cluster_conf);
2627
c6f5cc88
DM		 2628 my $rules = $cluster_conf->{rules};
2629 if (scalar(@$rules)) {
2630 $raw .= "[RULES]\n\n";
63c91681 2631 $raw .= &$format_rules($rules, 1);
c6f5cc88
DM		 2632 $raw .= "\n";
2633 }
2634
2635 foreach my $group (sort keys %{$cluster_conf->{groups}}) {
2636 my $rules = $cluster_conf->{groups}->{$group};
0d22acb3 2637 if (my $comment = $cluster_conf->{group_comments}->{$group}) {
649e4d57
DM		 2638 my $utf8comment = encode('utf8', $comment);
2639 $raw .= "[group $group] # $utf8comment\n\n";
0d22acb3
DM		 2640 } else {
2641 $raw .= "[group $group]\n\n";
2642 }
2643
63c91681 2644 $raw .= &$format_rules($rules, 0);
9c7e0858
DM		 2645 $raw .= "\n";
2646 }
2647
fca39c2c 2648 PVE::Tools::file_set_contents($clusterfw_conf_filename, $raw);
9c7e0858
DM		 2649}
2650
8b27beb9 2651sub load_hostfw_conf {
a523e057 2652 my ($cluster_conf, $filename, $verbose) = @_;
8aef5177
DM		 2653
2654 $filename = $hostfw_conf_filename if !defined($filename);
8b27beb9
DM		 2655
2656 my $hostfw_conf = {};
8aef5177 2657 if (my $fh = IO::File->new($filename, O_RDONLY)) {
a523e057 2658 $hostfw_conf = parse_host_fw_rules($filename, $fh, $cluster_conf, $verbose);
8b27beb9
DM		 2659 }
2660 return $hostfw_conf;
2661}
2662
63c91681
DM		 2663sub save_hostfw_conf {
2664 my ($hostfw_conf) = @_;
2665
2666 my $raw = '';
2667
2668 my $options = $hostfw_conf->{options};
68c90e21 2669 $raw .= &$format_options($options) if scalar(keys %$options);
cbb5d6f3 2670
63c91681
DM		 2671 my $rules = $hostfw_conf->{rules};
2672 if (scalar(@$rules)) {
2673 $raw .= "[RULES]\n\n";
2674 $raw .= &$format_rules($rules, 1);
2675 $raw .= "\n";
2676 }
2677
2678 PVE::Tools::file_set_contents($hostfw_conf_filename, $raw);
2679}
2680
e5d76bde 2681sub compile {
d4cda423 2682 my ($cluster_conf, $hostfw_conf, $vmdata, $verbose) = @_;
3dfa8a7f 2683
8aef5177
DM		 2684 my $vmfw_configs;
2685
2686 if ($vmdata) { # test mode
2687 my $testdir = $vmdata->{testdir} || die "no test directory specified";
2688 my $filename = "$testdir/cluster.fw";
d4cda423 2689 $cluster_conf = load_clusterfw_conf($filename, $verbose);
8aef5177
DM		 2690
2691 $filename = "$testdir/host.fw";
a523e057 2692 $hostfw_conf = load_hostfw_conf($cluster_conf, $filename, $verbose);
8aef5177 2693
a523e057 2694 $vmfw_configs = read_vm_firewall_configs($cluster_conf, $vmdata, $testdir, $verbose);
8aef5177 2695 } else { # normal operation
d4cda423 2696 $cluster_conf = load_clusterfw_conf(undef, $verbose) if !$cluster_conf;
8aef5177 2697
a523e057 2698 $hostfw_conf = load_hostfw_conf($cluster_conf, undef, $verbose) if !$hostfw_conf;
8aef5177
DM		 2699
2700 $vmdata = read_local_vm_config();
a523e057 2701 $vmfw_configs = read_vm_firewall_configs($cluster_conf, $vmdata, undef, $verbose);
8aef5177 2702 }
3dfa8a7f 2703
27083984 2704 $cluster_conf->{ipset}->{venet0} = [];
708ba714 2705 my $venet0_ipset_chain = compute_ipset_chain_name(0, 'venet0');
bfc488f6 2706
525778d7
DM		 2707 my $localnet;
2708 if ($cluster_conf->{aliases}->{local_network}) {
2709 $localnet = $cluster_conf->{aliases}->{local_network}->{cidr};
2710 } else {
2711 $localnet = local_network() || '127.0.0.0/8';
2712 $cluster_conf->{aliases}->{local_network} = { cidr => $localnet };
2713 }
2714
2715 push @{$cluster_conf->{ipset}->{management}}, { cidr => $localnet };
bfc488f6 2716
3fa83edf
DM		 2717 my $ruleset = {};
2718
dec84fcd
DM		 2719 ruleset_create_chain($ruleset, "PVEFW-INPUT");
2720 ruleset_create_chain($ruleset, "PVEFW-OUTPUT");
5b1df9a0 2721
fadb13dd 2722 ruleset_create_chain($ruleset, "PVEFW-FORWARD");
e34d0e58 2723
8b27beb9 2724 my $hostfw_options = $hostfw_conf->{options} || {};
fadb13dd 2725
88733a74
AD		 2726 # fixme: what log level should we use here?
2727 my $loglevel = get_option_log_level($hostfw_options, "log_level_out");
2728
097820b0 2729 ruleset_chain_add_conn_filters($ruleset, "PVEFW-FORWARD", "ACCEPT");
88733a74 2730
708ba714 2731
e2943485 2732 ruleset_create_chain($ruleset, "PVEFW-VENET-OUT");
708ba714
DM		 2733 ruleset_addrule($ruleset, "PVEFW-FORWARD", "-i venet0 -m set --match-set ${venet0_ipset_chain} src -j PVEFW-VENET-OUT");
2734 ruleset_addrule($ruleset, "PVEFW-INPUT", "-i venet0 -m set --match-set ${venet0_ipset_chain} src -j PVEFW-VENET-OUT");
e2943485
DM		 2735
2736 ruleset_create_chain($ruleset, "PVEFW-FWBR-IN");
2428e394 2737 ruleset_chain_add_input_filters($ruleset, "PVEFW-FWBR-IN", $hostfw_options, $cluster_conf, $loglevel);
e2943485 2738
d1b41c08 2739 ruleset_addrule($ruleset, "PVEFW-FORWARD", "-m physdev --physdev-is-bridged --physdev-in fwln+ -j PVEFW-FWBR-IN");
e2943485
DM		 2740
2741 ruleset_create_chain($ruleset, "PVEFW-FWBR-OUT");
d1b41c08 2742 ruleset_addrule($ruleset, "PVEFW-FORWARD", "-m physdev --physdev-is-bridged --physdev-out fwln+ -j PVEFW-FWBR-OUT");
e2943485
DM		 2743
2744 ruleset_create_chain($ruleset, "PVEFW-VENET-IN");
2428e394 2745 ruleset_chain_add_input_filters($ruleset, "PVEFW-VENET-IN", $hostfw_options, $cluster_conf, $loglevel);
e2943485 2746
708ba714 2747 ruleset_addrule($ruleset, "PVEFW-FORWARD", "-o venet0 -m set --match-set ${venet0_ipset_chain} dst -j PVEFW-VENET-IN");
e2943485 2748
92e976b3 2749 generate_std_chains($ruleset, $hostfw_options);
fadb13dd 2750
6d2ab017 2751 my $hostfw_enable = !(defined($hostfw_options->{enable}) && ($hostfw_options->{enable} == 0));
2d404ffc 2752
708ba714
DM		 2753 my $ipset_ruleset = {};
2754
1a9978ed
DM		 2755 if ($hostfw_enable) {
2756 eval { enable_host_firewall($ruleset, $hostfw_conf, $cluster_conf); };
2757 warn $@ if $@; # just to be sure - should not happen
2758 }
3fa83edf 2759
708ba714 2760 ruleset_addrule($ruleset, "PVEFW-OUTPUT", "-o venet0 -m set --match-set ${venet0_ipset_chain} dst -j PVEFW-VENET-IN");
62689a1e 2761
6158271d 2762 # generate firewall rules for QEMU VMs
3fa83edf 2763 foreach my $vmid (keys %{$vmdata->{qemu}}) {
1a9978ed
DM		 2764 eval {
2765 my $conf = $vmdata->{qemu}->{$vmid};
2766 my $vmfw_conf = $vmfw_configs->{$vmid};
2767 return if !$vmfw_conf;
2768 return if !$vmfw_conf->{options}->{enable};
2769
708ba714
DM		 2770 generate_ipset_chains($ipset_ruleset, $cluster_conf, $vmfw_conf);
2771
1a9978ed
DM		 2772 foreach my $netid (keys %$conf) {
2773 next if $netid !~ m/^net(\d+)$/;
2774 my $net = PVE::QemuServer::parse_net($conf->{$netid});
2775 next if !$net->{firewall};
2776 my $iface = "tap${vmid}i$1";
2777
2778 my $macaddr = $net->{macaddr};
2779 generate_tap_rules_direction($ruleset, $cluster_conf, $iface, $netid, $macaddr,
2780 $vmfw_conf, $vmid, 'IN');
2781 generate_tap_rules_direction($ruleset, $cluster_conf, $iface, $netid, $macaddr,
2782 $vmfw_conf, $vmid, 'OUT');
2783 }
2784 };
2785 warn $@ if $@; # just to be sure - should not happen
3fa83edf 2786 }
c8301d63
DM		 2787
2788 # generate firewall rules for OpenVZ containers
2789 foreach my $vmid (keys %{$vmdata->{openvz}}) {
1a9978ed
DM		 2790 eval {
2791 my $conf = $vmdata->{openvz}->{$vmid};
c8301d63 2792
1a9978ed
DM		 2793 my $vmfw_conf = $vmfw_configs->{$vmid};
2794 return if !$vmfw_conf;
2795 return if !$vmfw_conf->{options}->{enable};
c8301d63 2796
708ba714
DM		 2797 generate_ipset_chains($ipset_ruleset, $cluster_conf, $vmfw_conf);
2798
1a9978ed
DM		 2799 if ($conf->{ip_address} && $conf->{ip_address}->{value}) {
2800 my $ip = $conf->{ip_address}->{value};
2801 $ip =~ s/\s+/,/g;
2802 parse_address_list($ip); # make sure we have a valid $ip list
27083984 2803
1a9978ed 2804 my @ips = split(',', $ip);
27083984 2805
1a9978ed
DM		 2806 foreach my $singleip (@ips) {
2807 my $venet0ipset = {};
2808 $venet0ipset->{cidr} = $singleip;
2809 push @{$cluster_conf->{ipset}->{venet0}}, $venet0ipset;
2810 }
c8301d63 2811
1a9978ed
DM		 2812 generate_venet_rules_direction($ruleset, $cluster_conf, $vmfw_conf, $vmid, $ip, 'IN');
2813 generate_venet_rules_direction($ruleset, $cluster_conf, $vmfw_conf, $vmid, $ip, 'OUT');
2814 }
530c005e 2815
1a9978ed
DM		 2816 if ($conf->{netif} && $conf->{netif}->{value}) {
2817 my $netif = PVE::OpenVZ::parse_netif($conf->{netif}->{value});
2818 foreach my $netid (keys %$netif) {
2819 my $d = $netif->{$netid};
2820
2821 my $macaddr = $d->{mac};
2822 my $iface = $d->{host_ifname};
2823 generate_tap_rules_direction($ruleset, $cluster_conf, $iface, $netid, $macaddr,
2824 $vmfw_conf, $vmid, 'IN');
2825 generate_tap_rules_direction($ruleset, $cluster_conf, $iface, $netid, $macaddr,
2826 $vmfw_conf, $vmid, 'OUT');
2827 }
c8301d63 2828 }
1a9978ed
DM		 2829 };
2830 warn $@ if $@; # just to be sure - should not happen
c8301d63 2831 }
c0413e35 2832
097820b0
AD		 2833 if(ruleset_chain_exist($ruleset, "PVEFW-IPS")){
2834 ruleset_insertrule($ruleset, "PVEFW-FORWARD", "-m conntrack --ctstate RELATED,ESTABLISHED -j PVEFW-IPS");
2835 }
2836
708ba714 2837 generate_ipset_chains($ipset_ruleset, undef, $cluster_conf);
27083984 2838
3dfa8a7f 2839 return ($ruleset, $ipset_ruleset);
3fa83edf
DM		 2840}
2841
2842sub get_ruleset_status {
4bd0a9c4 2843 my ($ruleset, $active_chains, $digest_fn, $verbose) = @_;
3fa83edf
DM		 2844
2845 my $statushash = {};
2846
2847 foreach my $chain (sort keys %$ruleset) {
4bd0a9c4 2848 my $sig = &$digest_fn($ruleset->{$chain});
9bf7d929 2849
3fa83edf
DM		 2850 $statushash->{$chain}->{sig} = $sig;
2851
2852 my $oldsig = $active_chains->{$chain};
2853 if (!defined($oldsig)) {
2854 $statushash->{$chain}->{action} = 'create';
2855 } else {
2856 if ($oldsig eq $sig) {
2857 $statushash->{$chain}->{action} = 'exists';
2858 } else {
2859 $statushash->{$chain}->{action} = 'update';
2860 }
2861 }
2862 print "$statushash->{$chain}->{action} $chain ($sig)\n" if $verbose;
2863 foreach my $cmd (@{$ruleset->{$chain}}) {
2864 print "\t$cmd\n" if $verbose;
2865 }
2866 }
2867
2868 foreach my $chain (sort keys %$active_chains) {
2869 if (!defined($ruleset->{$chain})) {
2870 my $sig = $active_chains->{$chain};
2871 $statushash->{$chain}->{action} = 'delete';
2872 $statushash->{$chain}->{sig} = $sig;
2873 print "delete $chain ($sig)\n" if $verbose;
2874 }
6158271d 2875 }
2a052ee3 2876
3fa83edf
DM		 2877 return $statushash;
2878}
2879
3fa83edf
DM		 2880sub print_sig_rule {
2881 my ($chain, $sig) = @_;
2882
09d5f68e
DM		 2883 # We just use this to store a SHA1 checksum used to detect changes
2884 return "-A $chain -m comment --comment \"PVESIG:$sig\"\n";
b6360c3f
DM		 2885}
2886
df7cb349 2887sub get_ruleset_cmdlist {
a84f4d96 2888 my ($ruleset, $verbose) = @_;
3fa83edf 2889
3fa83edf 2890 my $cmdlist = "*filter\n"; # we pass this to iptables-restore;
cbb5d6f3 2891
4bd0a9c4
DM		 2892 my ($active_chains, $hooks) = iptables_get_chains();
2893 my $statushash = get_ruleset_status($ruleset, $active_chains, \&iptables_chain_digest, $verbose);
3fa83edf
DM		 2894
2895 # create missing chains first
2896 foreach my $chain (sort keys %$ruleset) {
2897 my $stat = $statushash->{$chain};
2898 die "internal error" if !$stat;
2899 next if $stat->{action} ne 'create';
886aba9c 2900
3fa83edf
DM		 2901 $cmdlist .= ":$chain - [0:0]\n";
2902 }
2903
4bd0a9c4
DM		 2904 foreach my $h (qw(INPUT OUTPUT FORWARD)) {
2905 if (!$hooks->{$h}) {
2906 $cmdlist .= "-A $h -j PVEFW-$h\n";
2907 }
3fa83edf
DM		 2908 }
2909
2910 foreach my $chain (sort keys %$ruleset) {
2911 my $stat = $statushash->{$chain};
2912 die "internal error" if !$stat;
2913
2914 if ($stat->{action} eq 'update' || $stat->{action} eq 'create') {
2915 $cmdlist .= "-F $chain\n";
2916 foreach my $cmd (@{$ruleset->{$chain}}) {
2917 $cmdlist .= "$cmd\n";
2918 }
2919 $cmdlist .= print_sig_rule($chain, $stat->{sig});
2920 } elsif ($stat->{action} eq 'delete') {
f5d28682 2921 die "internal error"; # this should not happen
3fa83edf
DM		 2922 } elsif ($stat->{action} eq 'exists') {
2923 # do nothing
2924 } else {
2925 die "internal error - unknown status '$stat->{action}'";
2926 }
2927 }
2928
f5d28682
DM		 2929 foreach my $chain (keys %$statushash) {
2930 next if $statushash->{$chain}->{action} ne 'delete';
2931 $cmdlist .= "-F $chain\n";
2932 }
2933 foreach my $chain (keys %$statushash) {
2934 next if $statushash->{$chain}->{action} ne 'delete';
fadb13dd
DM		 2935 next if $chain eq 'PVEFW-INPUT';
2936 next if $chain eq 'PVEFW-OUTPUT';
2937 next if $chain eq 'PVEFW-FORWARD';
f5d28682
DM		 2938 $cmdlist .= "-X $chain\n";
2939 }
2940
3f95d14a 2941 my $changes = $cmdlist ne "*filter\n" ? 1 : 0;
4bd0a9c4 2942
3fa83edf
DM		 2943 $cmdlist .= "COMMIT\n";
2944
3f95d14a 2945 return wantarray ? ($cmdlist, $changes) : $cmdlist;
6b9f68a2
DM		 2946}
2947
34cdedfa 2948sub get_ipset_cmdlist {
dd7a13fd 2949 my ($ruleset, $verbose) = @_;
34cdedfa
AD		 2950
2951 my $cmdlist = "";
2952
dd7a13fd
DM		 2953 my $delete_cmdlist = "";
2954
4bd0a9c4
DM		 2955 my $active_chains = ipset_get_chains();
2956 my $statushash = get_ruleset_status($ruleset, $active_chains, \&ipset_chain_digest, $verbose);
34cdedfa 2957
e34d0e58 2958 # remove stale _swap chains
30f1b100
DM		 2959 foreach my $chain (keys %$active_chains) {
2960 if ($chain =~ m/^PVEFW-\S+_swap$/) {
2961 $cmdlist .= "destroy $chain\n";
2962 }
2963 }
2964
dd7a13fd
DM		 2965 foreach my $chain (sort keys %$ruleset) {
2966 my $stat = $statushash->{$chain};
2967 die "internal error" if !$stat;
2a052ee3 2968
dd7a13fd
DM		 2969 if ($stat->{action} eq 'create') {
2970 foreach my $cmd (@{$ruleset->{$chain}}) {
34cdedfa
AD		 2971 $cmdlist .= "$cmd\n";
2972 }
dd7a13fd 2973 }
34cdedfa 2974
dd7a13fd
DM		 2975 if ($stat->{action} eq 'update') {
2976 my $chain_swap = $chain."_swap";
cbb5d6f3 2977
dd7a13fd
DM		 2978 foreach my $cmd (@{$ruleset->{$chain}}) {
2979 $cmd =~ s/$chain/$chain_swap/;
2980 $cmdlist .= "$cmd\n";
34cdedfa 2981 }
dd7a13fd
DM		 2982 $cmdlist .= "swap $chain_swap $chain\n";
2983 $cmdlist .= "flush $chain_swap\n";
2984 $cmdlist .= "destroy $chain_swap\n";
2a052ee3 2985 }
34cdedfa 2986
dd7a13fd 2987 }
3f95d14a 2988
dd7a13fd
DM		 2989 foreach my $chain (keys %$statushash) {
2990 next if $statushash->{$chain}->{action} ne 'delete';
2a052ee3 2991
dd7a13fd
DM		 2992 $delete_cmdlist .= "flush $chain\n";
2993 $delete_cmdlist .= "destroy $chain\n";
34cdedfa
AD		 2994 }
2995
dd7a13fd 2996 my $changes = ($cmdlist || $delete_cmdlist) ? 1 : 0;
cbb5d6f3 2997
dd7a13fd 2998 return ($cmdlist, $delete_cmdlist, $changes);
34cdedfa
AD		 2999}
3000
6b9f68a2 3001sub apply_ruleset {
34cdedfa 3002 my ($ruleset, $hostfw_conf, $ipset_ruleset, $verbose) = @_;
6b9f68a2
DM		 3003
3004 enable_bridge_firewall();
3005
cbb5d6f3 3006 my ($ipset_create_cmdlist, $ipset_delete_cmdlist, $ipset_changes) =
81a0bf43 3007 get_ipset_cmdlist($ipset_ruleset, undef, $verbose);
6b9f68a2 3008
81a0bf43 3009 my ($cmdlist, $changes) = get_ruleset_cmdlist($ruleset, $verbose);
2a052ee3 3010
81a0bf43
DM		 3011 if ($verbose) {
3012 if ($ipset_changes) {
3013 print "ipset changes:\n";
3014 print $ipset_create_cmdlist if $ipset_create_cmdlist;
3015 print $ipset_delete_cmdlist if $ipset_delete_cmdlist;
3016 }
3f95d14a 3017
81a0bf43
DM		 3018 if ($changes) {
3019 print "iptables changes:\n";
3020 print $cmdlist;
3021 }
3022 }
3fa83edf 3023
2a052ee3 3024 ipset_restore_cmdlist($ipset_create_cmdlist);
34cdedfa 3025
3fa83edf
DM		 3026 iptables_restore_cmdlist($cmdlist);
3027
dd7a13fd 3028 ipset_restore_cmdlist($ipset_delete_cmdlist) if $ipset_delete_cmdlist;
2a052ee3 3029
6158271d 3030 # test: re-read status and check if everything is up to date
4bd0a9c4 3031 my $active_chains = iptables_get_chains();
81a0bf43 3032 my $statushash = get_ruleset_status($ruleset, $active_chains, \&iptables_chain_digest, 0);
3fa83edf
DM		 3033
3034 my $errors;
3035 foreach my $chain (sort keys %$ruleset) {
3036 my $stat = $statushash->{$chain};
3037 if ($stat->{action} ne 'exists') {
3038 warn "unable to update chain '$chain'\n";
3039 $errors = 1;
3040 }
3041 }
b6360c3f 3042
3fa83edf 3043 die "unable to apply firewall changes\n" if $errors;
46a2ac1f
AD		 3044
3045 update_nf_conntrack_max($hostfw_conf);
3046
3047 update_nf_conntrack_tcp_timeout_established($hostfw_conf);
3048
b6360c3f
DM		 3049}
3050
490cdead
DM		 3051sub update_nf_conntrack_max {
3052 my ($hostfw_conf) = @_;
3053
3054 my $max = 65536; # reasonable default
3055
3056 my $options = $hostfw_conf->{options} || {};
3057
3058 if (defined($options->{nf_conntrack_max}) && ($options->{nf_conntrack_max} > $max)) {
3059 $max = $options->{nf_conntrack_max};
3060 $max = int(($max+ 8191)/8192)*8192; # round to multiples of 8192
3061 }
3062
3063 my $filename_nf_conntrack_max = "/proc/sys/net/nf_conntrack_max";
3064 my $filename_hashsize = "/sys/module/nf_conntrack/parameters/hashsize";
3065
3066 my $current = int(PVE::Tools::file_read_firstline($filename_nf_conntrack_max) || $max);
3067
3068 if ($current != $max) {
3069 my $hashsize = int($max/4);
3070 PVE::ProcFSTools::write_proc_entry($filename_hashsize, $hashsize);
3071 PVE::ProcFSTools::write_proc_entry($filename_nf_conntrack_max, $max);
3072 }
3073}
3074
28c082a1
AD		 3075sub update_nf_conntrack_tcp_timeout_established {
3076 my ($hostfw_conf) = @_;
3077
3078 my $options = $hostfw_conf->{options} || {};
3079
3080 my $value = defined($options->{nf_conntrack_tcp_timeout_established}) ? $options->{nf_conntrack_tcp_timeout_established} : 432000;
3081
3082 PVE::ProcFSTools::write_proc_entry("/proc/sys/net/netfilter/nf_conntrack_tcp_timeout_established", $value);
3083}
3084
c4a2e5ae
DM		 3085sub remove_pvefw_chains {
3086
3087 my ($chash, $hooks) = iptables_get_chains();
3088 my $cmdlist = "*filter\n";
3089
3090 foreach my $h (qw(INPUT OUTPUT FORWARD)) {
3091 if ($hooks->{$h}) {
3092 $cmdlist .= "-D $h -j PVEFW-$h\n";
3093 }
3094 }
cbb5d6f3 3095
c4a2e5ae
DM		 3096 foreach my $chain (keys %$chash) {
3097 $cmdlist .= "-F $chain\n";
3098 }
3099
3100 foreach my $chain (keys %$chash) {
3101 $cmdlist .= "-X $chain\n";
3102 }
3103 $cmdlist .= "COMMIT\n";
3104
3105 iptables_restore_cmdlist($cmdlist);
3106}
3107
8b453a09
DM		 3108sub init {
3109 my $cluster_conf = load_clusterfw_conf();
3110 my $cluster_options = $cluster_conf->{options};
3111 my $enable = $cluster_options->{enable};
3112
3113 return if !$enable;
3114
3115 # load required modules here
3116}
3117
6b9f68a2 3118sub update {
6b9f68a2 3119 my $code = sub {
3dfa8a7f
DM		 3120
3121 my $cluster_conf = load_clusterfw_conf();
3122 my $cluster_options = $cluster_conf->{options};
3123
51e57fee 3124 my $enable = $cluster_options->{enable};
3dfa8a7f 3125
e2beb7aa 3126 die "Firewall is disabled - cannot start\n" if !$enable;
3dfa8a7f
DM		 3127
3128 if (!$enable) {
b22130d3 3129 PVE::Firewall::remove_pvefw_chains();
3dfa8a7f
DM		 3130 return;
3131 }
3132
3133 my $hostfw_conf = load_hostfw_conf();
3134
3135 my ($ruleset, $ipset_ruleset) = compile($cluster_conf, $hostfw_conf);
490cdead 3136
d4cda423 3137 apply_ruleset($ruleset, $hostfw_conf, $ipset_ruleset);
6b9f68a2
DM		 3138 };
3139
3140 run_locked($code);
3141}
3142
b6360c3f 31431;
Firewall test scripts