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cleanup parameters to ruleset_generate_rule
[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;
6d959e3f 8use Socket qw(AF_INET6 inet_ntop inet_pton);
c8301d63 9use PVE::INotify;
7ca36671 10use PVE::Exception qw(raise raise_param_exc);
e74a87f5 11use PVE::JSONSchema qw(register_standard_option get_standard_option);
c8301d63 12use PVE::Cluster;
5f0a912c 13use PVE::ProcFSTools;
70e524eb 14use PVE::Tools qw($IPV4RE $IPV6RE);
2e1ae6b9 15use PVE::Network;
eedcb564 16use PVE::SafeSyslog;
6b9f68a2 17use File::Basename;
5e1267a5
DM		 18use File::Path;
19use IO::File;
ecbea048 20use Net::IP;
1a301a8d 21use PVE::Tools qw(run_command lock_file dir_glob_foreach);
30c1ae52 22use Encode;
cfd7cd9c 23use Storable qw(dclone);
ecbea048 24
63c91681 25my $hostfw_conf_filename = "/etc/pve/local/host.fw";
21053409
DM		 26my $pvefw_conf_dir = "/etc/pve/firewall";
27my $clusterfw_conf_filename = "$pvefw_conf_dir/cluster.fw";
fca39c2c 28
fdefeeab 29# dynamically include PVE::QemuServer and PVE::LXC
d9fee004
DM		 30# to avoid dependency problems
31my $have_qemu_server;
32eval {
33 require PVE::QemuServer;
b5a16dd3 34 require PVE::QemuConfig;
d9fee004
DM		 35 $have_qemu_server = 1;
36};
37
3b4882dc
AG		 38my $have_lxc;
39eval {
40 require PVE::LXC;
41 $have_lxc = 1;
42};
43
44
259db1e6
DM		 45my $pve_fw_status_dir = "/var/lib/pve-firewall";
46
47mkdir $pve_fw_status_dir; # make sure this exists
48
351052d1
DM		 49my $security_group_name_pattern = '[A-Za-z][A-Za-z0-9\-\_]+';
50my $ipset_name_pattern = '[A-Za-z][A-Za-z0-9\-\_]+';
f9792937 51our $ip_alias_pattern = '[A-Za-z][A-Za-z0-9\-\_]+';
351052d1
DM		 52
53my $max_alias_name_length = 64;
54my $max_ipset_name_length = 64;
5c53cde4 55my $max_group_name_length = 18;
351052d1 56
48e3963e
WB		 57my $PROTOCOLS_WITH_PORTS = {
58 udp => 1, 17 => 1,
59 udplite => 1, 136 => 1,
60 tcp => 1, 6 => 1,
61 dccp => 1, 33 => 1,
62 sctp => 1, 132 => 1,
63};
64
ae029a88
DM		 65PVE::JSONSchema::register_format('IPorCIDR', \&pve_verify_ip_or_cidr);
66sub pve_verify_ip_or_cidr {
009ee3ac
DM		 67 my ($cidr, $noerr) = @_;
68
70e524eb 69 if ($cidr =~ m!^(?:$IPV6RE|$IPV4RE)(/(\d+))?$!) {
e34d0e58 70 return $cidr if Net::IP->new($cidr);
7c619bbb
DM		 71 return undef if $noerr;
72 die Net::IP::Error() . "\n";
73 }
74 return undef if $noerr;
75 die "value does not look like a valid IP address or CIDR network\n";
76}
77
ae029a88
DM		 78PVE::JSONSchema::register_format('IPorCIDRorAlias', \&pve_verify_ip_or_cidr_or_alias);
79sub pve_verify_ip_or_cidr_or_alias {
7c619bbb
DM		 80 my ($cidr, $noerr) = @_;
81
82 return if $cidr =~ m/^(?:$ip_alias_pattern)$/;
83
ae029a88 84 return pve_verify_ip_or_cidr($cidr, $noerr);
009ee3ac
DM		 85}
86
e74a87f5
DM		 87PVE::JSONSchema::register_standard_option('ipset-name', {
88 description => "IP set name.",
89 type => 'string',
351052d1 90 pattern => $ipset_name_pattern,
387d0ffc 91 minLength => 2,
351052d1 92 maxLength => $max_ipset_name_length,
387d0ffc
DM		 93});
94
81d574a7
DM		 95PVE::JSONSchema::register_standard_option('pve-fw-alias', {
96 description => "Alias name.",
97 type => 'string',
351052d1 98 pattern => $ip_alias_pattern,
81d574a7 99 minLength => 2,
351052d1 100 maxLength => $max_alias_name_length,
81d574a7
DM		 101});
102
6302c41f
DM		 103PVE::JSONSchema::register_standard_option('pve-fw-loglevel' => {
104 description => "Log level.",
e34d0e58 105 type => 'string',
6302c41f
DM		 106 enum => ['emerg', 'alert', 'crit', 'err', 'warning', 'notice', 'info', 'debug', 'nolog'],
107 optional => 1,
108});
109
387d0ffc
DM		 110PVE::JSONSchema::register_standard_option('pve-security-group-name', {
111 description => "Security Group name.",
112 type => 'string',
44be8ceb 113 pattern => $security_group_name_pattern,
387d0ffc 114 minLength => 2,
351052d1 115 maxLength => $max_group_name_length,
e74a87f5 116});
009ee3ac 117
cbb5d6f3
DM		 118my $feature_ipset_nomatch = 0;
119eval {
120 my (undef, undef, $release) = POSIX::uname();
121 if ($release =~ m/^(\d+)\.(\d+)\.\d+-/) {
122 my ($major, $minor) = ($1, $2);
123 $feature_ipset_nomatch = 1 if ($major > 3) ||
124 ($major == 3 && $minor >= 7);
125 }
126
127};
128
c8301d63
DM		 129my $nodename = PVE::INotify::nodename();
130
06320eb0
DM		 131my $pve_fw_lock_filename = "/var/lock/pvefw.lck";
132
56f313f7 133my $default_log_level = 'nolog'; # avoid logs by default
2d404ffc
DM		 134
135my $log_level_hash = {
136 debug => 7,
137 info => 6,
138 notice => 5,
139 warning => 4,
140 err => 3,
141 crit => 2,
142 alert => 1,
143 emerg => 0,
144};
145
044409e5
TW		 146# %rule
147#
148# name => optional
30c390f9 149# enable => [0|1]
044409e5
TW		 150# action =>
151# proto =>
30c390f9
TW		 152# sport => port[,port[,port]].. or port:port
153# dport => port[,port[,port]].. or port:port
044409e5
TW		 154# log => optional, loglevel
155# logmsg => optional, logmsg - overwrites default
30c390f9
TW		 156# iface_in => incomin interface
157# iface_out => outgoing interface
044409e5
TW		 158# match => optional, overwrites generation of match
159# target => optional, overwrites action
160
35d1d6da
DM		 161# we need to overwrite some macros for ipv6
162my $pve_ipv6fw_macros = {
163 'Ping' => [
164 { action => 'PARAM', proto => 'icmpv6', dport => 'echo-request' },
165 ],
b3d75afb
WB		 166 'NeighborDiscovery' => [
167 "IPv6 neighbor solicitation, neighbor and router advertisement",
c71cdd44 168 { action => 'PARAM', proto => 'icmpv6', dport => 'router-solicitation' },
b3d75afb
WB		 169 { action => 'PARAM', proto => 'icmpv6', dport => 'router-advertisement' },
170 { action => 'PARAM', proto => 'icmpv6', dport => 'neighbor-solicitation' },
171 { action => 'PARAM', proto => 'icmpv6', dport => 'neighbor-advertisement' },
172 ],
a42e9763 173 'DHCPv6' => [
24dd51c2 174 "DHCPv6 traffic",
a42e9763
WB		 175 { action => 'PARAM', proto => 'udp', dport => '546:547', sport => '546:547' },
176 ],
35d1d6da
DM		 177 'Trcrt' => [
178 { action => 'PARAM', proto => 'udp', dport => '33434:33524' },
179 { action => 'PARAM', proto => 'icmpv6', dport => 'echo-request' },
180 ],
181 };
182
857f62c8 183# imported/converted from: /usr/share/shorewall/macro.*
961b4928 184my $pve_fw_macros = {
857f62c8 185 'Amanda' => [
ebd54ae9 186 "Amanda Backup",
857f62c8
DM		 187 { action => 'PARAM', proto => 'udp', dport => '10080' },
188 { action => 'PARAM', proto => 'tcp', dport => '10080' },
189 ],
190 'Auth' => [
ebd54ae9 191 "Auth (identd) traffic",
857f62c8
DM		 192 { action => 'PARAM', proto => 'tcp', dport => '113' },
193 ],
194 'BGP' => [
ebd54ae9 195 "Border Gateway Protocol traffic",
857f62c8
DM		 196 { action => 'PARAM', proto => 'tcp', dport => '179' },
197 ],
198 'BitTorrent' => [
ebd54ae9 199 "BitTorrent traffic for BitTorrent 3.1 and earlier",
961b4928 200 { action => 'PARAM', proto => 'tcp', dport => '6881:6889' },
857f62c8
DM		 201 { action => 'PARAM', proto => 'udp', dport => '6881' },
202 ],
203 'BitTorrent32' => [
ebd54ae9 204 "BitTorrent traffic for BitTorrent 3.2 and later",
857f62c8
DM		 205 { action => 'PARAM', proto => 'tcp', dport => '6881:6999' },
206 { action => 'PARAM', proto => 'udp', dport => '6881' },
207 ],
06ba9c44
AG		 208 'Ceph' => [
209 "Ceph Storage Cluster traffic (Ceph Monitors, OSD & MDS Deamons)",
210 { action => 'PARAM', proto => 'tcp', dport => '6789' },
211 { action => 'PARAM', proto => 'tcp', dport => '6800:7300' },
212 ],
857f62c8 213 'CVS' => [
ebd54ae9 214 "Concurrent Versions System pserver traffic",
857f62c8
DM		 215 { action => 'PARAM', proto => 'tcp', dport => '2401' },
216 ],
217 'Citrix' => [
ebd54ae9 218 "Citrix/ICA traffic (ICA, ICA Browser, CGP)",
857f62c8
DM		 219 { action => 'PARAM', proto => 'tcp', dport => '1494' },
220 { action => 'PARAM', proto => 'udp', dport => '1604' },
221 { action => 'PARAM', proto => 'tcp', dport => '2598' },
222 ],
223 'DAAP' => [
ebd54ae9 224 "Digital Audio Access Protocol traffic (iTunes, Rythmbox daemons)",
857f62c8
DM		 225 { action => 'PARAM', proto => 'tcp', dport => '3689' },
226 { action => 'PARAM', proto => 'udp', dport => '3689' },
227 ],
228 'DCC' => [
ebd54ae9 229 "Distributed Checksum Clearinghouse spam filtering mechanism",
857f62c8
DM		 230 { action => 'PARAM', proto => 'tcp', dport => '6277' },
231 ],
232 'DHCPfwd' => [
d2c3266d 233 "Forwarded DHCP traffic",
857f62c8 234 { action => 'PARAM', proto => 'udp', dport => '67:68', sport => '67:68' },
857f62c8
DM		 235 ],
236 'DNS' => [
ebd54ae9 237 "Domain Name System traffic (upd and tcp)",
857f62c8
DM		 238 { action => 'PARAM', proto => 'udp', dport => '53' },
239 { action => 'PARAM', proto => 'tcp', dport => '53' },
240 ],
241 'Distcc' => [
ebd54ae9 242 "Distributed Compiler service",
857f62c8
DM		 243 { action => 'PARAM', proto => 'tcp', dport => '3632' },
244 ],
857f62c8 245 'FTP' => [
ebd54ae9 246 "File Transfer Protocol",
857f62c8
DM		 247 { action => 'PARAM', proto => 'tcp', dport => '21' },
248 ],
249 'Finger' => [
ebd54ae9 250 "Finger protocol (RFC 742)",
857f62c8
DM		 251 { action => 'PARAM', proto => 'tcp', dport => '79' },
252 ],
253 'GNUnet' => [
ebd54ae9 254 "GNUnet secure peer-to-peer networking traffic",
857f62c8
DM		 255 { action => 'PARAM', proto => 'tcp', dport => '2086' },
256 { action => 'PARAM', proto => 'udp', dport => '2086' },
257 { action => 'PARAM', proto => 'tcp', dport => '1080' },
258 { action => 'PARAM', proto => 'udp', dport => '1080' },
259 ],
260 'GRE' => [
d2c3266d 261 "Generic Routing Encapsulation tunneling protocol",
857f62c8 262 { action => 'PARAM', proto => '47' },
857f62c8
DM		 263 ],
264 'Git' => [
ebd54ae9 265 "Git distributed revision control traffic",
857f62c8
DM		 266 { action => 'PARAM', proto => 'tcp', dport => '9418' },
267 ],
857f62c8 268 'HKP' => [
ebd54ae9 269 "OpenPGP HTTP keyserver protocol traffic",
857f62c8
DM		 270 { action => 'PARAM', proto => 'tcp', dport => '11371' },
271 ],
272 'HTTP' => [
ebd54ae9 273 "Hypertext Transfer Protocol (WWW)",
961b4928
DM		 274 { action => 'PARAM', proto => 'tcp', dport => '80' },
275 ],
857f62c8 276 'HTTPS' => [
ebd54ae9 277 "Hypertext Transfer Protocol (WWW) over SSL",
857f62c8
DM		 278 { action => 'PARAM', proto => 'tcp', dport => '443' },
279 ],
280 'ICPV2' => [
ebd54ae9 281 "Internet Cache Protocol V2 (Squid) traffic",
857f62c8
DM		 282 { action => 'PARAM', proto => 'udp', dport => '3130' },
283 ],
284 'ICQ' => [
ebd54ae9 285 "AOL Instant Messenger traffic",
857f62c8
DM		 286 { action => 'PARAM', proto => 'tcp', dport => '5190' },
287 ],
288 'IMAP' => [
ebd54ae9 289 "Internet Message Access Protocol",
857f62c8
DM		 290 { action => 'PARAM', proto => 'tcp', dport => '143' },
291 ],
292 'IMAPS' => [
ebd54ae9 293 "Internet Message Access Protocol over SSL",
857f62c8
DM		 294 { action => 'PARAM', proto => 'tcp', dport => '993' },
295 ],
296 'IPIP' => [
d2c3266d 297 "IPIP capsulation traffic",
857f62c8 298 { action => 'PARAM', proto => '94' },
857f62c8 299 ],
857f62c8 300 'IPsec' => [
d2c3266d 301 "IPsec traffic",
857f62c8
DM		 302 { action => 'PARAM', proto => 'udp', dport => '500', sport => '500' },
303 { action => 'PARAM', proto => '50' },
857f62c8
DM		 304 ],
305 'IPsecah' => [
d2c3266d 306 "IPsec authentication (AH) traffic",
857f62c8
DM		 307 { action => 'PARAM', proto => 'udp', dport => '500', sport => '500' },
308 { action => 'PARAM', proto => '51' },
857f62c8
DM		 309 ],
310 'IPsecnat' => [
d2c3266d 311 "IPsec traffic and Nat-Traversal",
857f62c8
DM		 312 { action => 'PARAM', proto => 'udp', dport => '500' },
313 { action => 'PARAM', proto => 'udp', dport => '4500' },
314 { action => 'PARAM', proto => '50' },
857f62c8
DM		 315 ],
316 'IRC' => [
ebd54ae9 317 "Internet Relay Chat traffic",
857f62c8
DM		 318 { action => 'PARAM', proto => 'tcp', dport => '6667' },
319 ],
857f62c8 320 'Jetdirect' => [
ebd54ae9 321 "HP Jetdirect printing",
857f62c8
DM		 322 { action => 'PARAM', proto => 'tcp', dport => '9100' },
323 ],
324 'L2TP' => [
ebd54ae9 325 "Layer 2 Tunneling Protocol traffic",
857f62c8 326 { action => 'PARAM', proto => 'udp', dport => '1701' },
857f62c8
DM		 327 ],
328 'LDAP' => [
ebd54ae9 329 "Lightweight Directory Access Protocol traffic",
857f62c8
DM		 330 { action => 'PARAM', proto => 'tcp', dport => '389' },
331 ],
332 'LDAPS' => [
ebd54ae9 333 "Secure Lightweight Directory Access Protocol traffic",
857f62c8
DM		 334 { action => 'PARAM', proto => 'tcp', dport => '636' },
335 ],
336 'MSNP' => [
ebd54ae9 337 "Microsoft Notification Protocol",
857f62c8
DM		 338 { action => 'PARAM', proto => 'tcp', dport => '1863' },
339 ],
340 'MSSQL' => [
ebd54ae9 341 "Microsoft SQL Server",
857f62c8
DM		 342 { action => 'PARAM', proto => 'tcp', dport => '1433' },
343 ],
344 'Mail' => [
ebd54ae9 345 "Mail traffic (SMTP, SMTPS, Submission)",
857f62c8
DM		 346 { action => 'PARAM', proto => 'tcp', dport => '25' },
347 { action => 'PARAM', proto => 'tcp', dport => '465' },
348 { action => 'PARAM', proto => 'tcp', dport => '587' },
349 ],
7831e1e3
EK		 350 'MDNS' => [
351 "Multicast DNS",
352 { action => 'PARAM', proto => 'udp', dport => '5353' },
353 ],
857f62c8 354 'Munin' => [
ebd54ae9 355 "Munin networked resource monitoring traffic",
857f62c8
DM		 356 { action => 'PARAM', proto => 'tcp', dport => '4949' },
357 ],
358 'MySQL' => [
ebd54ae9 359 "MySQL server",
857f62c8
DM		 360 { action => 'PARAM', proto => 'tcp', dport => '3306' },
361 ],
362 'NNTP' => [
ebd54ae9 363 "NNTP traffic (Usenet).",
857f62c8
DM		 364 { action => 'PARAM', proto => 'tcp', dport => '119' },
365 ],
366 'NNTPS' => [
ebd54ae9 367 "Encrypted NNTP traffic (Usenet)",
857f62c8
DM		 368 { action => 'PARAM', proto => 'tcp', dport => '563' },
369 ],
370 'NTP' => [
ebd54ae9 371 "Network Time Protocol (ntpd)",
857f62c8
DM		 372 { action => 'PARAM', proto => 'udp', dport => '123' },
373 ],
857f62c8 374 'OSPF' => [
ebd54ae9 375 "OSPF multicast traffic",
857f62c8
DM		 376 { action => 'PARAM', proto => '89' },
377 ],
378 'OpenVPN' => [
ebd54ae9 379 "OpenVPN traffic",
857f62c8
DM		 380 { action => 'PARAM', proto => 'udp', dport => '1194' },
381 ],
382 'PCA' => [
ebd54ae9 383 "Symantec PCAnywere (tm)",
857f62c8
DM		 384 { action => 'PARAM', proto => 'udp', dport => '5632' },
385 { action => 'PARAM', proto => 'tcp', dport => '5631' },
386 ],
387 'POP3' => [
ebd54ae9 388 "POP3 traffic",
857f62c8
DM		 389 { action => 'PARAM', proto => 'tcp', dport => '110' },
390 ],
391 'POP3S' => [
ebd54ae9 392 "Encrypted POP3 traffic",
857f62c8
DM		 393 { action => 'PARAM', proto => 'tcp', dport => '995' },
394 ],
395 'PPtP' => [
ebd54ae9 396 "Point-to-Point Tunneling Protocol",
857f62c8 397 { action => 'PARAM', proto => '47' },
857f62c8
DM		 398 { action => 'PARAM', proto => 'tcp', dport => '1723' },
399 ],
400 'Ping' => [
ebd54ae9 401 "ICMP echo request",
269d4f13 402 { action => 'PARAM', proto => 'icmp', dport => 'echo-request' },
857f62c8
DM		 403 ],
404 'PostgreSQL' => [
ebd54ae9 405 "PostgreSQL server",
857f62c8
DM		 406 { action => 'PARAM', proto => 'tcp', dport => '5432' },
407 ],
408 'Printer' => [
ebd54ae9 409 "Line Printer protocol printing",
857f62c8
DM		 410 { action => 'PARAM', proto => 'tcp', dport => '515' },
411 ],
412 'RDP' => [
ebd54ae9 413 "Microsoft Remote Desktop Protocol traffic",
857f62c8
DM		 414 { action => 'PARAM', proto => 'tcp', dport => '3389' },
415 ],
d2c3266d 416 'RIP' => [
ebd54ae9 417 "Routing Information Protocol (bidirectional)",
857f62c8 418 { action => 'PARAM', proto => 'udp', dport => '520' },
857f62c8
DM		 419 ],
420 'RNDC' => [
ebd54ae9 421 "BIND remote management protocol",
857f62c8
DM		 422 { action => 'PARAM', proto => 'tcp', dport => '953' },
423 ],
424 'Razor' => [
ebd54ae9 425 "Razor Antispam System",
857f62c8
DM		 426 { action => 'ACCEPT', proto => 'tcp', dport => '2703' },
427 ],
428 'Rdate' => [
ebd54ae9 429 "Remote time retrieval (rdate)",
857f62c8
DM		 430 { action => 'PARAM', proto => 'tcp', dport => '37' },
431 ],
432 'Rsync' => [
ebd54ae9 433 "Rsync server",
857f62c8
DM		 434 { action => 'PARAM', proto => 'tcp', dport => '873' },
435 ],
436 'SANE' => [
ebd54ae9 437 "SANE network scanning",
857f62c8
DM		 438 { action => 'PARAM', proto => 'tcp', dport => '6566' },
439 ],
440 'SMB' => [
ebd54ae9 441 "Microsoft SMB traffic",
857f62c8
DM		 442 { action => 'PARAM', proto => 'udp', dport => '135,445' },
443 { action => 'PARAM', proto => 'udp', dport => '137:139' },
444 { action => 'PARAM', proto => 'udp', dport => '1024:65535', sport => '137' },
445 { action => 'PARAM', proto => 'tcp', dport => '135,139,445' },
446 ],
857f62c8 447 'SMBswat' => [
ebd54ae9 448 "Samba Web Administration Tool",
857f62c8
DM		 449 { action => 'PARAM', proto => 'tcp', dport => '901' },
450 ],
451 'SMTP' => [
ebd54ae9 452 "Simple Mail Transfer Protocol",
857f62c8
DM		 453 { action => 'PARAM', proto => 'tcp', dport => '25' },
454 ],
455 'SMTPS' => [
ebd54ae9 456 "Encrypted Simple Mail Transfer Protocol",
857f62c8
DM		 457 { action => 'PARAM', proto => 'tcp', dport => '465' },
458 ],
459 'SNMP' => [
ebd54ae9 460 "Simple Network Management Protocol",
857f62c8
DM		 461 { action => 'PARAM', proto => 'udp', dport => '161:162' },
462 { action => 'PARAM', proto => 'tcp', dport => '161' },
463 ],
464 'SPAMD' => [
ebd54ae9 465 "Spam Assassin SPAMD traffic",
857f62c8
DM		 466 { action => 'PARAM', proto => 'tcp', dport => '783' },
467 ],
468 'SSH' => [
ebd54ae9 469 "Secure shell traffic",
857f62c8
DM		 470 { action => 'PARAM', proto => 'tcp', dport => '22' },
471 ],
472 'SVN' => [
ebd54ae9 473 "Subversion server (svnserve)",
857f62c8
DM		 474 { action => 'PARAM', proto => 'tcp', dport => '3690' },
475 ],
476 'SixXS' => [
ebd54ae9 477 "SixXS IPv6 Deployment and Tunnel Broker",
857f62c8
DM		 478 { action => 'PARAM', proto => 'tcp', dport => '3874' },
479 { action => 'PARAM', proto => 'udp', dport => '3740' },
480 { action => 'PARAM', proto => '41' },
481 { action => 'PARAM', proto => 'udp', dport => '5072,8374' },
482 ],
483 'Squid' => [
ebd54ae9 484 "Squid web proxy traffic",
857f62c8
DM		 485 { action => 'PARAM', proto => 'tcp', dport => '3128' },
486 ],
487 'Submission' => [
ebd54ae9 488 "Mail message submission traffic",
857f62c8
DM		 489 { action => 'PARAM', proto => 'tcp', dport => '587' },
490 ],
491 'Syslog' => [
ebd54ae9 492 "Syslog protocol (RFC 5424) traffic",
857f62c8
DM		 493 { action => 'PARAM', proto => 'udp', dport => '514' },
494 { action => 'PARAM', proto => 'tcp', dport => '514' },
495 ],
496 'TFTP' => [
ebd54ae9 497 "Trivial File Transfer Protocol traffic",
857f62c8
DM		 498 { action => 'PARAM', proto => 'udp', dport => '69' },
499 ],
500 'Telnet' => [
ebd54ae9 501 "Telnet traffic",
857f62c8
DM		 502 { action => 'PARAM', proto => 'tcp', dport => '23' },
503 ],
504 'Telnets' => [
ebd54ae9 505 "Telnet over SSL",
857f62c8
DM		 506 { action => 'PARAM', proto => 'tcp', dport => '992' },
507 ],
508 'Time' => [
ebd54ae9 509 "RFC 868 Time protocol",
857f62c8
DM		 510 { action => 'PARAM', proto => 'tcp', dport => '37' },
511 ],
512 'Trcrt' => [
ebd54ae9 513 "Traceroute (for up to 30 hops) traffic",
857f62c8 514 { action => 'PARAM', proto => 'udp', dport => '33434:33524' },
269d4f13 515 { action => 'PARAM', proto => 'icmp', dport => 'echo-request' },
857f62c8
DM		 516 ],
517 'VNC' => [
93be4333
DM		 518 "VNC traffic for VNC display's 0 - 99",
519 { action => 'PARAM', proto => 'tcp', dport => '5900:5999' },
857f62c8
DM		 520 ],
521 'VNCL' => [
ebd54ae9 522 "VNC traffic from Vncservers to Vncviewers in listen mode",
857f62c8
DM		 523 { action => 'PARAM', proto => 'tcp', dport => '5500' },
524 ],
525 'Web' => [
ebd54ae9 526 "WWW traffic (HTTP and HTTPS)",
857f62c8 527 { action => 'PARAM', proto => 'tcp', dport => '80' },
961b4928
DM		 528 { action => 'PARAM', proto => 'tcp', dport => '443' },
529 ],
857f62c8 530 'Webcache' => [
ebd54ae9 531 "Web Cache/Proxy traffic (port 8080)",
857f62c8
DM		 532 { action => 'PARAM', proto => 'tcp', dport => '8080' },
533 ],
534 'Webmin' => [
ebd54ae9 535 "Webmin traffic",
857f62c8
DM		 536 { action => 'PARAM', proto => 'tcp', dport => '10000' },
537 ],
538 'Whois' => [
ebd54ae9 539 "Whois (nicname, RFC 3912) traffic",
857f62c8
DM		 540 { action => 'PARAM', proto => 'tcp', dport => '43' },
541 ],
961b4928
DM		 542};
543
544my $pve_fw_parsed_macros;
ebd54ae9 545my $pve_fw_macro_descr;
21a18e53 546my $pve_fw_macro_ipversion = {};
961b4928 547my $pve_fw_preferred_macro_names = {};
3a616aa0 548
fe3d79b4
WB		 549my $FWACCEPTMARK_ON = "0x80000000/0x80000000";
550my $FWACCEPTMARK_OFF = "0x00000000/0x80000000";
551
5547adf7 552my $pve_std_chains = {};
cfd7cd9c
TW		 553my $pve_std_chains_conf = {};
554$pve_std_chains_conf->{4} = {
d8f2505e 555 'PVEFW-SET-ACCEPT-MARK' => [
044409e5 556 { target => "-j MARK --set-mark $FWACCEPTMARK_ON" },
d8f2505e 557 ],
79929d9c
DM		 558 'PVEFW-DropBroadcast' => [
559 # same as shorewall 'Broadcast'
560 # simply DROP BROADCAST/MULTICAST/ANYCAST
561 # we can use this to reduce logging
562 { action => 'DROP', dsttype => 'BROADCAST' },
563 { action => 'DROP', dsttype => 'MULTICAST' },
564 { action => 'DROP', dsttype => 'ANYCAST' },
cbb5d6f3 565 { action => 'DROP', dest => '224.0.0.0/4' },
79929d9c
DM		 566 ],
567 'PVEFW-reject' => [
568 # same as shorewall 'reject'
569 { action => 'DROP', dsttype => 'BROADCAST' },
cbb5d6f3 570 { action => 'DROP', source => '224.0.0.0/4' },
79929d9c 571 { action => 'DROP', proto => 'icmp' },
044409e5
TW		 572 { match => '-p tcp', target => '-j REJECT --reject-with tcp-reset' },
573 { match => '-p udp', target => '-j REJECT --reject-with icmp-port-unreachable' },
574 { match => '-p icmp', target => '-j REJECT --reject-with icmp-host-unreachable' },
575 { target => '-j REJECT --reject-with icmp-host-prohibited' },
79929d9c
DM		 576 ],
577 'PVEFW-Drop' => [
cbb5d6f3 578 # same as shorewall 'Drop', which is equal to DROP,
79929d9c
DM		 579 # but REJECT/DROP some packages to reduce logging,
580 # and ACCEPT critical ICMP types
581 { action => 'PVEFW-reject', proto => 'tcp', dport => '43' }, # REJECT 'auth'
582 # we are not interested in BROADCAST/MULTICAST/ANYCAST
583 { action => 'PVEFW-DropBroadcast' },
584 # ACCEPT critical ICMP types
585 { action => 'ACCEPT', proto => 'icmp', dport => 'fragmentation-needed' },
586 { action => 'ACCEPT', proto => 'icmp', dport => 'time-exceeded' },
587 # Drop packets with INVALID state
044409e5 588 { action => 'DROP', match => '-m conntrack --ctstate INVALID', },
79929d9c 589 # Drop Microsoft SMB noise
e4882cff
TW		 590 { action => 'DROP', proto => 'udp', dport => '135,445' },
591 { action => 'DROP', proto => 'udp', dport => '137:139' },
79929d9c 592 { action => 'DROP', proto => 'udp', dport => '1024:65535', sport => 137 },
e4882cff 593 { action => 'DROP', proto => 'tcp', dport => '135,139,445' },
79929d9c
DM		 594 { action => 'DROP', proto => 'udp', dport => 1900 }, # UPnP
595 # Drop new/NotSyn traffic so that it doesn't get logged
044409e5 596 { action => 'DROP', match => '-p tcp -m tcp ! --tcp-flags FIN,SYN,RST,ACK SYN' },
79929d9c
DM		 597 # Drop DNS replies
598 { action => 'DROP', proto => 'udp', sport => 53 },
599 ],
600 'PVEFW-Reject' => [
cbb5d6f3 601 # same as shorewall 'Reject', which is equal to Reject,
79929d9c
DM		 602 # but REJECT/DROP some packages to reduce logging,
603 # and ACCEPT critical ICMP types
604 { action => 'PVEFW-reject', proto => 'tcp', dport => '43' }, # REJECT 'auth'
605 # we are not interested in BROADCAST/MULTICAST/ANYCAST
606 { action => 'PVEFW-DropBroadcast' },
607 # ACCEPT critical ICMP types
608 { action => 'ACCEPT', proto => 'icmp', dport => 'fragmentation-needed' },
609 { action => 'ACCEPT', proto => 'icmp', dport => 'time-exceeded' },
610 # Drop packets with INVALID state
044409e5 611 { action => 'DROP', match => '-m conntrack --ctstate INVALID', },
79929d9c 612 # Drop Microsoft SMB noise
e4882cff 613 { action => 'PVEFW-reject', proto => 'udp', dport => '135,445' },
79929d9c
DM		 614 { action => 'PVEFW-reject', proto => 'udp', dport => '137:139'},
615 { action => 'PVEFW-reject', proto => 'udp', dport => '1024:65535', sport => 137 },
e4882cff 616 { action => 'PVEFW-reject', proto => 'tcp', dport => '135,139,445' },
79929d9c
DM		 617 { action => 'DROP', proto => 'udp', dport => 1900 }, # UPnP
618 # Drop new/NotSyn traffic so that it doesn't get logged
044409e5 619 { action => 'DROP', match => '-p tcp -m tcp ! --tcp-flags FIN,SYN,RST,ACK SYN' },
79929d9c
DM		 620 # Drop DNS replies
621 { action => 'DROP', proto => 'udp', sport => 53 },
622 ],
d86659ef
DM		 623 'PVEFW-tcpflags' => [
624 # same as shorewall tcpflags action.
625 # Packets arriving on this interface are checked for som illegal combinations of TCP flags
044409e5
TW		 626 { match => '-p tcp -m tcp --tcp-flags FIN,SYN,RST,PSH,ACK,URG FIN,PSH,URG', target => '-g PVEFW-logflags' },
627 { match => '-p tcp -m tcp --tcp-flags FIN,SYN,RST,PSH,ACK,URG NONE', target => '-g PVEFW-logflags' },
628 { match => '-p tcp -m tcp --tcp-flags SYN,RST SYN,RST', target => '-g PVEFW-logflags' },
629 { match => '-p tcp -m tcp --tcp-flags FIN,SYN FIN,SYN', target => '-g PVEFW-logflags' },
630 { match => '-p tcp -m tcp --sport 0 --tcp-flags FIN,SYN,RST,ACK SYN', target => '-g PVEFW-logflags' },
d86659ef 631 ],
bee633ab
DM		 632 'PVEFW-smurfs' => [
633 # same as shorewall smurfs action
634 # Filter packets for smurfs (packets with a broadcast address as the source).
044409e5
TW		 635 { match => '-s 0.0.0.0/32', target => '-j RETURN' }, # allow DHCP
636 { match => '-m addrtype --src-type BROADCAST', target => '-g PVEFW-smurflog' },
637 { match => '-s 224.0.0.0/4', target => '-g PVEFW-smurflog' },
638 ],
639 'PVEFW-smurflog' => [
640 { action => 'DROP', logmsg => 'DROP: ' },
641 ],
642 'PVEFW-logflags' => [
643 { action => 'DROP', logmsg => 'DROP: ' },
bee633ab 644 ],
d8f2505e
DM		 645};
646
cfd7cd9c 647$pve_std_chains_conf->{6} = {
47a79ff2 648 'PVEFW-SET-ACCEPT-MARK' => [
044409e5 649 { target => "-j MARK --set-mark $FWACCEPTMARK_ON" },
47a79ff2
AD		 650 ],
651 'PVEFW-DropBroadcast' => [
044409e5
TW		 652 # same as shorewall 'Broadcast'
653 # simply DROP BROADCAST/MULTICAST/ANYCAST
654 # we can use this to reduce logging
655 #{ action => 'DROP', dsttype => 'BROADCAST' }, #no broadcast in ipv6
649cd835
DM		 656 # ipv6 addrtype does not work with kernel 2.6.32
657 #{ action => 'DROP', dsttype => 'MULTICAST' },
044409e5
TW		 658 #{ action => 'DROP', dsttype => 'ANYCAST' },
659 { action => 'DROP', dest => 'ff00::/8' },
660 #{ action => 'DROP', dest => '224.0.0.0/4' },
47a79ff2
AD		 661 ],
662 'PVEFW-reject' => [
044409e5
TW		 663 # same as shorewall 'reject'
664 #{ action => 'DROP', dsttype => 'BROADCAST' },
665 #{ action => 'DROP', source => '224.0.0.0/4' },
649cd835 666 { action => 'DROP', proto => 'icmpv6' },
044409e5
TW		 667 { match => '-p tcp', target => '-j REJECT --reject-with tcp-reset' },
668 #"-p udp -j REJECT --reject-with icmp-port-unreachable",
669 #"-p icmp -j REJECT --reject-with icmp-host-unreachable",
670 #"-j REJECT --reject-with icmp-host-prohibited",
47a79ff2
AD		 671 ],
672 'PVEFW-Drop' => [
044409e5
TW		 673 # same as shorewall 'Drop', which is equal to DROP,
674 # but REJECT/DROP some packages to reduce logging,
675 # and ACCEPT critical ICMP types
649cd835 676 { action => 'PVEFW-reject', proto => 'tcp', dport => '43' }, # REJECT 'auth'
044409e5
TW		 677 # we are not interested in BROADCAST/MULTICAST/ANYCAST
678 { action => 'PVEFW-DropBroadcast' },
679 # ACCEPT critical ICMP types
680 { action => 'ACCEPT', proto => 'icmpv6', dport => 'destination-unreachable' },
681 { action => 'ACCEPT', proto => 'icmpv6', dport => 'time-exceeded' },
682 { action => 'ACCEPT', proto => 'icmpv6', dport => 'packet-too-big' },
683 # Drop packets with INVALID state
684 { action => 'DROP', match => '-m conntrack --ctstate INVALID', },
685 # Drop Microsoft SMB noise
e4882cff 686 { action => 'DROP', proto => 'udp', dport => '135,445' },
649cd835
DM		 687 { action => 'DROP', proto => 'udp', dport => '137:139'},
688 { action => 'DROP', proto => 'udp', dport => '1024:65535', sport => 137 },
e4882cff 689 { action => 'DROP', proto => 'tcp', dport => '135,139,445' },
649cd835 690 { action => 'DROP', proto => 'udp', dport => 1900 }, # UPnP
044409e5
TW		 691 # Drop new/NotSyn traffic so that it doesn't get logged
692 { action => 'DROP', match => '-p tcp -m tcp ! --tcp-flags FIN,SYN,RST,ACK SYN' },
693 # Drop DNS replies
649cd835 694 { action => 'DROP', proto => 'udp', sport => 53 },
47a79ff2
AD		 695 ],
696 'PVEFW-Reject' => [
044409e5
TW		 697 # same as shorewall 'Reject', which is equal to Reject,
698 # but REJECT/DROP some packages to reduce logging,
699 # and ACCEPT critical ICMP types
700 { action => 'PVEFW-reject', proto => 'tcp', dport => '43' }, # REJECT 'auth'
701 # we are not interested in BROADCAST/MULTICAST/ANYCAST
702 { action => 'PVEFW-DropBroadcast' },
703 # ACCEPT critical ICMP types
704 { action => 'ACCEPT', proto => 'icmpv6', dport => 'destination-unreachable' },
705 { action => 'ACCEPT', proto => 'icmpv6', dport => 'time-exceeded' },
706 { action => 'ACCEPT', proto => 'icmpv6', dport => 'packet-too-big' },
707 # Drop packets with INVALID state
708 { action => 'DROP', match => '-m conntrack --ctstate INVALID', },
709 # Drop Microsoft SMB noise
e4882cff
TW		 710 { action => 'PVEFW-reject', proto => 'udp', dport => '135,445' },
711 { action => 'PVEFW-reject', proto => 'udp', dport => '137:139' },
044409e5 712 { action => 'PVEFW-reject', proto => 'udp', dport => '1024:65535', sport => 137 },
e4882cff 713 { action => 'PVEFW-reject', proto => 'tcp', dport => '135,139,445' },
044409e5
TW		 714 { action => 'DROP', proto => 'udp', dport => 1900 }, # UPnP
715 # Drop new/NotSyn traffic so that it doesn't get logged
716 { action => 'DROP', match => '-p tcp -m tcp ! --tcp-flags FIN,SYN,RST,ACK SYN' },
717 # Drop DNS replies
718 { action => 'DROP', proto => 'udp', sport => 53 },
47a79ff2
AD		 719 ],
720 'PVEFW-tcpflags' => [
044409e5
TW		 721 # same as shorewall tcpflags action.
722 # Packets arriving on this interface are checked for som illegal combinations of TCP flags
723 { match => '-p tcp -m tcp --tcp-flags FIN,SYN,RST,PSH,ACK,URG FIN,PSH,URG', target => '-g PVEFW-logflags' },
724 { match => '-p tcp -m tcp --tcp-flags FIN,SYN,RST,PSH,ACK,URG NONE', target => '-g PVEFW-logflags' },
725 { match => '-p tcp -m tcp --tcp-flags SYN,RST SYN,RST', target => '-g PVEFW-logflags' },
726 { match => '-p tcp -m tcp --tcp-flags FIN,SYN FIN,SYN', target => '-g PVEFW-logflags' },
727 { match => '-p tcp -m tcp --sport 0 --tcp-flags FIN,SYN,RST,ACK SYN', target => '-g PVEFW-logflags' },
728 ],
729 'PVEFW-logflags' => [
730 { action => 'DROP', logmsg => 'DROP: ' },
47a79ff2 731 ],
47a79ff2
AD		 732};
733
4b586518
DM		 734# iptables -p icmp -h
735my $icmp_type_names = {
736 any => 1,
737 'echo-reply' => 1,
738 'destination-unreachable' => 1,
739 'network-unreachable' => 1,
740 'host-unreachable' => 1,
741 'protocol-unreachable' => 1,
742 'port-unreachable' => 1,
743 'fragmentation-needed' => 1,
744 'source-route-failed' => 1,
745 'network-unknown' => 1,
746 'host-unknown' => 1,
747 'network-prohibited' => 1,
748 'host-prohibited' => 1,
749 'TOS-network-unreachable' => 1,
750 'TOS-host-unreachable' => 1,
751 'communication-prohibited' => 1,
752 'host-precedence-violation' => 1,
753 'precedence-cutoff' => 1,
754 'source-quench' => 1,
755 'redirect' => 1,
756 'network-redirect' => 1,
757 'host-redirect' => 1,
758 'TOS-network-redirect' => 1,
759 'TOS-host-redirect' => 1,
760 'echo-request' => 1,
761 'router-advertisement' => 1,
762 'router-solicitation' => 1,
763 'time-exceeded' => 1,
764 'ttl-zero-during-transit' => 1,
765 'ttl-zero-during-reassembly' => 1,
766 'parameter-problem' => 1,
767 'ip-header-bad' => 1,
768 'required-option-missing' => 1,
769 'timestamp-request' => 1,
770 'timestamp-reply' => 1,
771 'address-mask-request' => 1,
772 'address-mask-reply' => 1,
773};
774
041b9277
DM		 775# ip6tables -p icmpv6 -h
776
777my $icmpv6_type_names = {
778 'any' => 1,
779 'destination-unreachable' => 1,
780 'no-route' => 1,
781 'communication-prohibited' => 1,
782 'address-unreachable' => 1,
783 'port-unreachable' => 1,
784 'packet-too-big' => 1,
785 'time-exceeded' => 1,
786 'ttl-zero-during-transit' => 1,
787 'ttl-zero-during-reassembly' => 1,
788 'parameter-problem' => 1,
789 'bad-header' => 1,
790 'unknown-header-type' => 1,
791 'unknown-option' => 1,
792 'echo-request' => 1,
793 'echo-reply' => 1,
794 'router-solicitation' => 1,
795 'router-advertisement' => 1,
593604cc 796 'neighbor-solicitation' => 1,
041b9277 797 'neighbour-solicitation' => 1,
593604cc 798 'neighbor-advertisement' => 1,
041b9277
DM		 799 'neighbour-advertisement' => 1,
800 'redirect' => 1,
801};
802
54cd19a8 803sub init_firewall_macros {
6158271d 804
961b4928 805 $pve_fw_parsed_macros = {};
9aab3127 806
21a18e53
WB		 807 my $parse = sub {
808 my ($k, $macro) = @_;
e5076eee 809 my $lc_name = lc($k);
21a18e53
WB		 810 $pve_fw_macro_ipversion->{$k} = 0;
811 while (!ref($macro->[0])) {
812 my $desc = shift @$macro;
813 if ($desc eq 'ipv4only') {
814 $pve_fw_macro_ipversion->{$k} = 4;
815 } elsif ($desc eq 'ipv6only') {
816 $pve_fw_macro_ipversion->{$k} = 6;
817 } else {
818 $pve_fw_macro_descr->{$k} = $desc;
819 }
ebd54ae9 820 }
e5076eee
DM		 821 $pve_fw_preferred_macro_names->{$lc_name} = $k;
822 $pve_fw_parsed_macros->{$k} = $macro;
21a18e53
WB		 823 };
824
825 foreach my $k (keys %$pve_fw_macros) {
826 &$parse($k, $pve_fw_macros->{$k});
827 }
828
829 foreach my $k (keys %$pve_ipv6fw_macros) {
830 next if $pve_fw_parsed_macros->{$k};
831 &$parse($k, $pve_ipv6fw_macros->{$k});
832 $pve_fw_macro_ipversion->{$k} = 6;
961b4928 833 }
9aab3127
DM		 834}
835
54cd19a8
DM		 836init_firewall_macros();
837
ebd54ae9
DM		 838sub get_macros {
839 return wantarray ? ($pve_fw_parsed_macros, $pve_fw_macro_descr): $pve_fw_parsed_macros;
840}
841
fcba0beb
DM		 842my $etc_services;
843
844sub get_etc_services {
845
846 return $etc_services if $etc_services;
847
848 my $filename = "/etc/services";
849
850 my $fh = IO::File->new($filename, O_RDONLY);
851 if (!$fh) {
852 warn "unable to read '$filename' - $!\n";
853 return {};
854 }
855
856 my $services = {};
857
858 while (my $line = <$fh>) {
859 chomp ($line);
860 next if $line =~m/^#/;
861 next if ($line =~m/^\s*$/);
862
863 if ($line =~ m!^(\S+)\s+(\S+)/(tcp|udp).*$!) {
864 $services->{byid}->{$2}->{name} = $1;
35b66e9d 865 $services->{byid}->{$2}->{port} = $2;
fcba0beb
DM		 866 $services->{byid}->{$2}->{$3} = 1;
867 $services->{byname}->{$1} = $services->{byid}->{$2};
868 }
869 }
870
871 close($fh);
872
6158271d
DM		 873 $etc_services = $services;
874
3a616aa0 875
fcba0beb
DM		 876 return $etc_services;
877}
878
879my $etc_protocols;
880
881sub get_etc_protocols {
882 return $etc_protocols if $etc_protocols;
883
884 my $filename = "/etc/protocols";
885
886 my $fh = IO::File->new($filename, O_RDONLY);
887 if (!$fh) {
888 warn "unable to read '$filename' - $!\n";
889 return {};
890 }
891
892 my $protocols = {};
893
894 while (my $line = <$fh>) {
895 chomp ($line);
896 next if $line =~m/^#/;
897 next if ($line =~m/^\s*$/);
898
899 if ($line =~ m!^(\S+)\s+(\d+)\s+.*$!) {
900 $protocols->{byid}->{$2}->{name} = $1;
901 $protocols->{byname}->{$1} = $protocols->{byid}->{$2};
902 }
903 }
904
905 close($fh);
906
041b9277
DM		 907 # add special case for ICMP v6
908 $protocols->{byid}->{icmpv6}->{name} = "icmpv6";
909 $protocols->{byname}->{icmpv6} = $protocols->{byid}->{icmpv6};
910
fcba0beb
DM		 911 $etc_protocols = $protocols;
912
913 return $etc_protocols;
914}
915
525778d7 916my $__local_network;
93be4333 917
525778d7 918sub local_network {
ac633d30 919 my ($new_value) = @_;
93be4333 920
525778d7 921 $__local_network = $new_value if defined($new_value);
ac633d30 922
525778d7 923 return $__local_network if defined($__local_network);
93be4333
DM		 924
925 eval {
926 my $nodename = PVE::INotify::nodename();
927
928 my $ip = PVE::Cluster::remote_node_ip($nodename);
929
930 my $testip = Net::IP->new($ip);
bfc488f6 931
5dc356af
WB		 932 my $isv6 = $testip->version == 6;
933 my $routes = $isv6 ? PVE::ProcFSTools::read_proc_net_ipv6_route()
934 : PVE::ProcFSTools::read_proc_net_route();
93be4333 935 foreach my $entry (@$routes) {
5dc356af
WB		 936 my $mask;
937 if ($isv6) {
938 $mask = $entry->{prefix};
15c80000 939 next if !$mask; # skip the default route...
5dc356af 940 } else {
2e1ae6b9 941 $mask = $PVE::Network::ipv4_mask_hash_localnet->{$entry->{mask}};
5dc356af
WB		 942 next if !defined($mask);
943 }
93be4333
DM		 944 my $cidr = "$entry->{dest}/$mask";
945 my $testnet = Net::IP->new($cidr);
15c80000
WB		 946 my $overlap = $testnet->overlaps($testip);
947 if ($overlap == $Net::IP::IP_B_IN_A_OVERLAP ||
948 $overlap == $Net::IP::IP_IDENTICAL)
949 {
525778d7 950 $__local_network = $cidr;
93be4333
DM		 951 return;
952 }
953 }
954 };
955 warn $@ if $@;
956
525778d7 957 return $__local_network;
93be4333
DM		 958}
959
6d959e3f
DM		 960# ipset names are limited to 31 characters,
961# and we use '-v4' or '-v6' to indicate IP versions,
962# and we use '_swap' suffix for atomic update,
963# for example PVEFW-${VMID}-${ipset_name}_swap
30150dca 964
88c26d5e 965my $max_iptables_ipset_name_length = 31 - length("PVEFW-") - length("_swap");
708ba714
DM		 966
967sub compute_ipset_chain_name {
88c26d5e 968 my ($vmid, $ipset_name, $ipversion) = @_;
708ba714
DM		 969
970 $vmid = 0 if !defined($vmid);
971
88c26d5e 972 my $id = "$vmid-${ipset_name}-v$ipversion";
708ba714 973
88c26d5e 974 if (length($id) > $max_iptables_ipset_name_length) {
708ba714
DM		 975 $id = PVE::Tools::fnv31a_hex($id);
976 }
977
978 return "PVEFW-$id";
979}
980
b692f42c
DM		 981sub compute_ipfilter_ipset_name {
982 my ($iface) = @_;
983
984 return "ipfilter-$iface";
985}
986
ecbea048
DM		 987sub parse_address_list {
988 my ($str) = @_;
989
e2c62733
DM		 990 if ($str =~ m/^(\+)(\S+)$/) { # ipset ref
991 die "ipset name too long\n" if length($str) > ($max_ipset_name_length + 1);
992 return;
993 }
994
995 if ($str =~ m/^${ip_alias_pattern}$/) {
996 die "alias name too long\n" if length($str) > $max_alias_name_length;
997 return;
998 }
d72beb8e 999
3162af6b
DM		 1000 my $count = 0;
1001 my $iprange = 0;
a589b6ac 1002 my $ipversion;
7697c041 1003
55b47371
WB		 1004 my @elements = split(/,/, $str);
1005 die "extraneous commas in list\n" if $str ne join(',', @elements);
1006 foreach my $elem (@elements) {
3162af6b 1007 $count++;
c344e509
DM		 1008 my $ip = Net::IP->new($elem);
1009 if (!$ip) {
ecbea048
DM		 1010 my $err = Net::IP::Error();
1011 die "invalid IP address: $err\n";
1012 }
3162af6b 1013 $iprange = 1 if $elem =~ m/-/;
a589b6ac 1014
c344e509 1015 my $new_ipversion = Net::IP::ip_is_ipv6($ip->ip()) ? 6 : 4;
a589b6ac
DM		 1016
1017 die "detected mixed ipv4/ipv6 addresses in address list '$str'\n"
006490cb 1018 if $ipversion && ($new_ipversion != $ipversion);
a589b6ac
DM		 1019
1020 $ipversion = $new_ipversion;
ecbea048 1021 }
e34d0e58 1022
5163367b 1023 die "you can't use a range in a list\n" if $iprange && $count > 1;
a589b6ac 1024
7697c041 1025 return $ipversion;
ecbea048 1026}
dddd9413 1027
fcba0beb 1028sub parse_port_name_number_or_range {
a1c04f71 1029 my ($str, $dport) = @_;
fcba0beb
DM		 1030
1031 my $services = PVE::Firewall::get_etc_services();
7ca36671 1032 my $count = 0;
041b7e8e
DM		 1033 my $icmp_port = 0;
1034
55b47371
WB		 1035 my @elements = split(/,/, $str);
1036 die "extraneous commas in list\n" if $str ne join(',', @elements);
1037 foreach my $item (@elements) {
7ca36671
DM		 1038 $count++;
1039 if ($item =~ m/^(\d+):(\d+)$/) {
1040 my ($port1, $port2) = ($1, $2);
1041 die "invalid port '$port1'\n" if $port1 > 65535;
1042 die "invalid port '$port2'\n" if $port2 > 65535;
1043 } elsif ($item =~ m/^(\d+)$/) {
1044 my $port = $1;
1045 die "invalid port '$port'\n" if $port > 65535;
1046 } else {
a1c04f71 1047 if ($dport && $icmp_type_names->{$item}) {
041b7e8e 1048 $icmp_port = 1;
a1c04f71 1049 } elsif ($dport && $icmpv6_type_names->{$item}) {
041b9277 1050 $icmp_port = 1;
041b7e8e 1051 } else {
e34d0e58 1052 die "invalid port '$item'\n" if !$services->{byname}->{$item};
041b7e8e 1053 }
fcba0beb
DM		 1054 }
1055 }
1056
041b7e8e
DM		 1057 die "ICPM ports not allowed in port range\n" if $icmp_port && $count > 1;
1058
7ca36671 1059 return $count;
fcba0beb
DM		 1060}
1061
a1c04f71
WB		 1062PVE::JSONSchema::register_format('pve-fw-sport-spec', \&pve_fw_verify_sport_spec);
1063sub pve_fw_verify_sport_spec {
1064 my ($portstr) = @_;
1065
1066 parse_port_name_number_or_range($portstr, 0);
1067
1068 return $portstr;
1069}
1070
1071PVE::JSONSchema::register_format('pve-fw-dport-spec', \&pve_fw_verify_dport_spec);
1072sub pve_fw_verify_dport_spec {
54cd19a8
DM		 1073 my ($portstr) = @_;
1074
a1c04f71 1075 parse_port_name_number_or_range($portstr, 1);
54cd19a8
DM		 1076
1077 return $portstr;
1078}
1079
d31689ee
DM		 1080PVE::JSONSchema::register_format('pve-fw-addr-spec', \&pve_fw_verify_addr_spec);
1081sub pve_fw_verify_addr_spec {
54cd19a8
DM		 1082 my ($list) = @_;
1083
1084 parse_address_list($list);
1085
1086 return $list;
1087}
1088
1089PVE::JSONSchema::register_format('pve-fw-protocol-spec', \&pve_fw_verify_protocol_spec);
1090sub pve_fw_verify_protocol_spec {
1091 my ($proto) = @_;
1092
1093 my $protocols = get_etc_protocols();
1094
1095 die "unknown protocol '$proto'\n" if $proto &&
1096 !(defined($protocols->{byname}->{$proto}) ||
1097 defined($protocols->{byid}->{$proto}));
1098
1099 return $proto;
1100}
1101
1102
d1c53b3e 1103# helper function for API
d1c53b3e 1104
5d38d64f
DM		 1105sub copy_opject_with_digest {
1106 my ($object) = @_;
1107
1108 my $sha = Digest::SHA->new('sha1');
1109
1110 my $res = {};
1111 foreach my $k (sort keys %$object) {
1112 my $v = $object->{$k};
0365eb68 1113 next if !defined($v);
5d38d64f
DM		 1114 $res->{$k} = $v;
1115 $sha->add($k, ':', $v, "\n");
1116 }
1117
55e686c7 1118 my $digest = $sha->hexdigest;
5d38d64f
DM		 1119
1120 $res->{digest} = $digest;
1121
1122 return wantarray ? ($res, $digest) : $res;
1123}
1124
1125sub copy_list_with_digest {
1126 my ($list) = @_;
1127
1128 my $sha = Digest::SHA->new('sha1');
1129
1130 my $res = [];
1131 foreach my $entry (@$list) {
1132 my $data = {};
1133 foreach my $k (sort keys %$entry) {
1134 my $v = $entry->{$k};
0365eb68 1135 next if !defined($v);
5d38d64f 1136 $data->{$k} = $v;
6d9246e7 1137 # Note: digest ignores refs ($rule->{errors})
e83f0d00
DC		 1138 # since Digest::SHA expects a series of bytes,
1139 # we have to encode the value here to prevent errors when
1140 # using utf8 characters (eg. in comments)
1141 $sha->add($k, ':', encode_utf8($v), "\n") if !ref($v); ;
5d38d64f
DM		 1142 }
1143 push @$res, $data;
1144 }
1145
55e686c7 1146 my $digest = $sha->hexdigest;
5d38d64f
DM		 1147
1148 foreach my $entry (@$res) {
1149 $entry->{digest} = $digest;
1150 }
1151
1152 return wantarray ? ($res, $digest) : $res;
1153}
1154
e313afe0
DM		 1155our $cluster_option_properties = {
1156 enable => {
1157 description => "Enable or disable the firewall cluster wide.",
1158 type => 'integer',
1159 minimum => 0,
1160 optional => 1,
1161 },
1162 policy_in => {
1163 description => "Input policy.",
1164 type => 'string',
1165 optional => 1,
1166 enum => ['ACCEPT', 'REJECT', 'DROP'],
1167 },
1168 policy_out => {
1169 description => "Output policy.",
1170 type => 'string',
1171 optional => 1,
1172 enum => ['ACCEPT', 'REJECT', 'DROP'],
1173 },
1174};
1175
1176our $host_option_properties = {
1177 enable => {
1178 description => "Enable host firewall rules.",
1179 type => 'boolean',
1180 optional => 1,
1181 },
1182 log_level_in => get_standard_option('pve-fw-loglevel', {
1183 description => "Log level for incoming traffic." }),
1184 log_level_out => get_standard_option('pve-fw-loglevel', {
1185 description => "Log level for outgoing traffic." }),
1186 tcp_flags_log_level => get_standard_option('pve-fw-loglevel', {
1187 description => "Log level for illegal tcp flags filter." }),
1188 smurf_log_level => get_standard_option('pve-fw-loglevel', {
1189 description => "Log level for SMURFS filter." }),
1190 nosmurfs => {
1191 description => "Enable SMURFS filter.",
1192 type => 'boolean',
1193 optional => 1,
1194 },
1195 tcpflags => {
1196 description => "Filter illegal combinations of TCP flags.",
1197 type => 'boolean',
1198 optional => 1,
1199 },
1200 nf_conntrack_max => {
1201 description => "Maximum number of tracked connections.",
1202 type => 'integer',
1203 optional => 1,
1204 minimum => 32768,
1205 },
1206 nf_conntrack_tcp_timeout_established => {
1207 description => "Conntrack established timeout.",
1208 type => 'integer',
1209 optional => 1,
1210 minimum => 7875,
1211 },
1212 ndp => {
1213 description => "Enable NDP.",
1214 type => 'boolean',
1215 optional => 1,
1216 },
1217};
1218
1219our $vm_option_properties = {
1220 enable => {
1221 description => "Enable/disable firewall rules.",
1222 type => 'boolean',
1223 optional => 1,
1224 },
1225 macfilter => {
1226 description => "Enable/disable MAC address filter.",
1227 type => 'boolean',
1228 optional => 1,
1229 },
1230 dhcp => {
1231 description => "Enable DHCP.",
1232 type => 'boolean',
1233 optional => 1,
1234 },
1235 ndp => {
1236 description => "Enable NDP.",
1237 type => 'boolean',
1238 optional => 1,
1239 },
1240 radv => {
1241 description => "Allow sending Router Advertisement.",
1242 type => 'boolean',
1243 optional => 1,
1244 },
1245 ipfilter => {
1246 description => "Enable default IP filters. " .
1247 "This is equivalent to adding an empty ipfilter-net<id> ipset " .
1248 "for every interface. Such ipsets implicitly contain sane default " .
1249 "restrictions such as restricting IPv6 link local addresses to " .
1250 "the one derived from the interface's MAC address. For containers " .
1251 "the configured IP addresses will be implicitly added.",
1252 type => 'boolean',
1253 optional => 1,
1254 },
1255 policy_in => {
1256 description => "Input policy.",
1257 type => 'string',
1258 optional => 1,
1259 enum => ['ACCEPT', 'REJECT', 'DROP'],
1260 },
1261 policy_out => {
1262 description => "Output policy.",
1263 type => 'string',
1264 optional => 1,
1265 enum => ['ACCEPT', 'REJECT', 'DROP'],
1266 },
1267 log_level_in => get_standard_option('pve-fw-loglevel', {
1268 description => "Log level for incoming traffic." }),
1269 log_level_out => get_standard_option('pve-fw-loglevel', {
1270 description => "Log level for outgoing traffic." }),
1271
1272};
1273
fb060a52 1274
7a332151 1275my $addr_list_descr = "This can refer to a single IP address, an IP set ('+ipsetname') or an IP alias definition. You can also specify an address range like '20.34.101.207-201.3.9.99', or a list of IP addresses and networks (entries are separated by comma). Please do not mix IPv4 and IPv6 addresses inside such lists.";
fb060a52 1276
7a332151 1277my $port_descr = "You can use service names or simple numbers (0-65535), as defined in '/etc/services'. Port ranges can be specified with '\\d+:\\d+', for example '80:85', and you can use comma separated list to match several ports or ranges.";
fb060a52 1278
9c7e0858
DM		 1279my $rule_properties = {
1280 pos => {
1281 description => "Update rule at position <pos>.",
1282 type => 'integer',
1283 minimum => 0,
1284 optional => 1,
1285 },
c71e785f 1286 digest => get_standard_option('pve-config-digest'),
9c7e0858 1287 type => {
e50429af 1288 description => "Rule type.",
9c7e0858
DM		 1289 type => 'string',
1290 optional => 1,
1291 enum => ['in', 'out', 'group'],
1292 },
1293 action => {
c14dacdf 1294 description => "Rule action ('ACCEPT', 'DROP', 'REJECT') or security group name.",
9c7e0858
DM		 1295 type => 'string',
1296 optional => 1,
44be8ceb 1297 pattern => $security_group_name_pattern,
c14dacdf
DM		 1298 maxLength => 20,
1299 minLength => 2,
9c7e0858 1300 },
e5076eee 1301 macro => {
e50429af 1302 description => "Use predefined standard macro.",
e5076eee
DM		 1303 type => 'string',
1304 optional => 1,
54cd19a8 1305 maxLength => 128,
e5076eee 1306 },
fb060a52 1307 iface => get_standard_option('pve-iface', {
7ccaa5f1 1308 description => "Network interface name. You have to use network configuration key names for VMs and containers ('net\\d+'). Host related rules can use arbitrary strings.",
fb060a52
DM		 1309 optional => 1
1310 }),
9c7e0858 1311 source => {
fb060a52 1312 description => "Restrict packet source address. $addr_list_descr",
d31689ee 1313 type => 'string', format => 'pve-fw-addr-spec',
9c7e0858
DM		 1314 optional => 1,
1315 },
1316 dest => {
fb060a52 1317 description => "Restrict packet destination address. $addr_list_descr",
d31689ee 1318 type => 'string', format => 'pve-fw-addr-spec',
9c7e0858
DM		 1319 optional => 1,
1320 },
1321 proto => {
fb060a52 1322 description => "IP protocol. You can use protocol names ('tcp'/'udp') or simple numbers, as defined in '/etc/protocols'.",
54cd19a8 1323 type => 'string', format => 'pve-fw-protocol-spec',
9c7e0858
DM		 1324 optional => 1,
1325 },
1326 enable => {
e50429af 1327 description => "Flag to enable/disable a rule.",
72d055fc
AG		 1328 type => 'integer',
1329 minimum => 0,
9c7e0858
DM		 1330 optional => 1,
1331 },
1332 sport => {
fb060a52 1333 description => "Restrict TCP/UDP source port. $port_descr",
a1c04f71 1334 type => 'string', format => 'pve-fw-sport-spec',
9c7e0858
DM		 1335 optional => 1,
1336 },
1337 dport => {
fb060a52 1338 description => "Restrict TCP/UDP destination port. $port_descr",
a1c04f71 1339 type => 'string', format => 'pve-fw-dport-spec',
9c7e0858
DM		 1340 optional => 1,
1341 },
1342 comment => {
e50429af 1343 description => "Descriptive comment.",
9c7e0858
DM		 1344 type => 'string',
1345 optional => 1,
1346 },
1347};
1348
1349sub add_rule_properties {
1350 my ($properties) = @_;
1351
1352 foreach my $k (keys %$rule_properties) {
3655b01f
DM		 1353 my $h = $rule_properties->{$k};
1354 # copy data, so that we can modify later without side effects
1355 foreach my $opt (keys %$h) { $properties->{$k}->{$opt} = $h->{$opt}; }
9c7e0858 1356 }
cbb5d6f3 1357
9c7e0858
DM		 1358 return $properties;
1359}
1360
5b7974df
DM		 1361sub delete_rule_properties {
1362 my ($rule, $delete_str) = @_;
e34d0e58 1363
5b7974df
DM		 1364 foreach my $opt (PVE::Tools::split_list($delete_str)) {
1365 raise_param_exc({ 'delete' => "no such property ('$opt')"})
1366 if !defined($rule_properties->{$opt});
1367 raise_param_exc({ 'delete' => "unable to delete required property '$opt'"})
1368 if $opt eq 'type' || $opt eq 'action';
1369 delete $rule->{$opt};
1370 }
1371
1372 return $rule;
1373}
1374
9a2745a0 1375my $apply_macro = sub {
35d1d6da 1376 my ($macro_name, $param, $verify, $ipversion) = @_;
9a2745a0
DM		 1377
1378 my $macro_rules = $pve_fw_parsed_macros->{$macro_name};
1379 die "unknown macro '$macro_name'\n" if !$macro_rules; # should not happen
1380
35d1d6da
DM		 1381 if ($ipversion && ($ipversion == 6) && $pve_ipv6fw_macros->{$macro_name}) {
1382 $macro_rules = $pve_ipv6fw_macros->{$macro_name};
1383 }
1384
21a18e53 1385 # skip macros which are specific to another ipversion
ff5d050e
AG		 1386 if ($ipversion && (my $required = $pve_fw_macro_ipversion->{$macro_name})) {
1387 return if $ipversion != $required;
1388 }
21a18e53 1389
9a2745a0
DM		 1390 my $rules = [];
1391
1392 foreach my $templ (@$macro_rules) {
1393 my $rule = {};
1394 my $param_used = {};
1395 foreach my $k (keys %$templ) {
1396 my $v = $templ->{$k};
1397 if ($v eq 'PARAM') {
1398 $v = $param->{$k};
1399 $param_used->{$k} = 1;
1400 } elsif ($v eq 'DEST') {
1401 $v = $param->{dest};
1402 $param_used->{dest} = 1;
1403 } elsif ($v eq 'SOURCE') {
1404 $v = $param->{source};
1405 $param_used->{source} = 1;
1406 }
1407
1408 if (!defined($v)) {
1409 my $msg = "missing parameter '$k' in macro '$macro_name'";
e34d0e58 1410 raise_param_exc({ macro => $msg }) if $verify;
9a2745a0
DM		 1411 die "$msg\n";
1412 }
1413 $rule->{$k} = $v;
1414 }
1415 foreach my $k (keys %$param) {
1416 next if $k eq 'macro';
1417 next if !defined($param->{$k});
1418 next if $param_used->{$k};
1419 if (defined($rule->{$k})) {
1420 if ($rule->{$k} ne $param->{$k}) {
1421 my $msg = "parameter '$k' already define in macro (value = '$rule->{$k}')";
e34d0e58 1422 raise_param_exc({ $k => $msg }) if $verify;
9a2745a0
DM		 1423 die "$msg\n";
1424 }
1425 } else {
1426 $rule->{$k} = $param->{$k};
1427 }
1428 }
1429 push @$rules, $rule;
1430 }
1431
1432 return $rules;
1433};
1434
b6b8e6ad
DM		 1435my $rule_env_iface_lookup = {
1436 'ct' => 1,
1437 'vm' => 1,
1438 'group' => 0,
1439 'cluster' => 1,
1440 'host' => 1,
1441};
1442
7ca36671 1443sub verify_rule {
a523e057 1444 my ($rule, $cluster_conf, $fw_conf, $rule_env, $noerr) = @_;
b6b8e6ad
DM		 1445
1446 my $allow_groups = $rule_env eq 'group' ? 0 : 1;
bfc488f6 1447
b6b8e6ad
DM		 1448 my $allow_iface = $rule_env_iface_lookup->{$rule_env};
1449 die "unknown rule_env '$rule_env'\n" if !defined($allow_iface); # should not happen
7ca36671 1450
a523e057
DM		 1451 my $errors = $rule->{errors} || {};
1452
6d9246e7 1453 my $error_count = 0;
7ca36671 1454
6d9246e7
DM		 1455 my $add_error = sub {
1456 my ($param, $msg) = @_;
d4cda423 1457 chomp $msg;
6d9246e7
DM		 1458 raise_param_exc({ $param => $msg }) if !$noerr;
1459 $error_count++;
1460 $errors->{$param} = $msg if !$errors->{$param};
1461 };
1462
eea9d2a1
DM		 1463 my $ipversion;
1464 my $set_ip_version = sub {
1465 my $vers = shift;
1466 if ($vers) {
1467 die "detected mixed ipv4/ipv6 adresses in rule\n"
1468 if $ipversion && ($vers != $ipversion);
1469 $ipversion = $vers;
1470 }
1471 };
1472
a523e057 1473 my $check_ipset_or_alias_property = sub {
ae029a88 1474 my ($name, $expected_ipversion) = @_;
a523e057
DM		 1475
1476 if (my $value = $rule->{$name}) {
1477 if ($value =~ m/^\+/) {
4dfe04e6 1478 if ($value =~ m/^\+(${ipset_name_pattern})$/) {
bfc488f6 1479 &$add_error($name, "no such ipset '$1'")
a523e057 1480 if !($cluster_conf->{ipset}->{$1} || ($fw_conf && $fw_conf->{ipset}->{$1}));
bfc488f6 1481
a523e057 1482 } else {
351052d1 1483 &$add_error($name, "invalid ipset name '$value'");
a523e057
DM		 1484 }
1485 } elsif ($value =~ m/^${ip_alias_pattern}$/){
1486 my $alias = lc($value);
bfc488f6 1487 &$add_error($name, "no such alias '$value'")
70e524eb 1488 if !($cluster_conf->{aliases}->{$alias} || ($fw_conf && $fw_conf->{aliases}->{$alias}));
04f5088f 1489 my $e = $fw_conf ? $fw_conf->{aliases}->{$alias} : undef;
70e524eb
AD		 1490 $e = $cluster_conf->{aliases}->{$alias} if !$e && $cluster_conf;
1491
eea9d2a1 1492 &$set_ip_version($e->{ipversion});
a523e057
DM		 1493 }
1494 }
1495 };
1496
6d9246e7
DM		 1497 my $type = $rule->{type};
1498 my $action = $rule->{action};
bfc488f6 1499
6d9246e7
DM		 1500 &$add_error('type', "missing property") if !$type;
1501 &$add_error('action', "missing property") if !$action;
1502
1503 if ($type) {
1504 if ($type eq 'in' || $type eq 'out') {
1505 &$add_error('action', "unknown action '$action'")
1506 if $action && ($action !~ m/^(ACCEPT|DROP|REJECT)$/);
1507 } elsif ($type eq 'group') {
1508 &$add_error('type', "security groups not allowed")
1509 if !$allow_groups;
1510 &$add_error('action', "invalid characters in security group name")
1511 if $action && ($action !~ m/^${security_group_name_pattern}$/);
1512 } else {
1513 &$add_error('type', "unknown rule type '$type'");
1514 }
7ca36671 1515 }
e34d0e58 1516
dba740a9 1517 if ($rule->{iface}) {
bfc488f6 1518 &$add_error('type', "parameter -i not allowed for this rule type")
b6b8e6ad 1519 if !$allow_iface;
dba740a9 1520 eval { PVE::JSONSchema::pve_verify_iface($rule->{iface}); };
6d9246e7 1521 &$add_error('iface', $@) if $@;
fdefeeab 1522 if ($rule_env eq 'vm' || $rule_env eq 'ct') {
b6b8e6ad
DM		 1523 &$add_error('iface', "value does not match the regex pattern 'net\\d+'")
1524 if $rule->{iface} !~ m/^net(\d+)$/;
b6b8e6ad
DM		 1525 }
1526 }
7ca36671
DM		 1527
1528 if ($rule->{macro}) {
6d9246e7
DM		 1529 if (my $preferred_name = $pve_fw_preferred_macro_names->{lc($rule->{macro})}) {
1530 $rule->{macro} = $preferred_name;
1531 } else {
1532 &$add_error('macro', "unknown macro '$rule->{macro}'");
1533 }
1534 }
1535
1536 if ($rule->{proto}) {
1537 eval { pve_fw_verify_protocol_spec($rule->{proto}); };
1538 &$add_error('proto', $@) if $@;
041b9277
DM		 1539 &$set_ip_version(4) if $rule->{proto} eq 'icmp';
1540 &$set_ip_version(6) if $rule->{proto} eq 'icmpv6';
6d9246e7 1541 }
7ca36671
DM		 1542
1543 if ($rule->{dport}) {
a1c04f71 1544 eval { parse_port_name_number_or_range($rule->{dport}, 1); };
6d9246e7 1545 &$add_error('dport', $@) if $@;
48e3963e 1546 my $proto = $rule->{proto};
6d9246e7 1547 &$add_error('proto', "missing property - 'dport' requires this property")
48e3963e
WB		 1548 if !$proto;
1549 &$add_error('dport', "protocol '$proto' does not support ports")
1550 if !$PROTOCOLS_WITH_PORTS->{$proto} &&
1551 $proto ne 'icmp' && $proto ne 'icmpv6'; # special cases
6d9246e7 1552 }
7ca36671
DM		 1553
1554 if ($rule->{sport}) {
a1c04f71 1555 eval { parse_port_name_number_or_range($rule->{sport}, 0); };
6d9246e7 1556 &$add_error('sport', $@) if $@;
48e3963e 1557 my $proto = $rule->{proto};
6d9246e7 1558 &$add_error('proto', "missing property - 'sport' requires this property")
48e3963e
WB		 1559 if !$proto;
1560 &$add_error('sport', "protocol '$proto' does not support ports")
1561 if !$PROTOCOLS_WITH_PORTS->{$proto};
7ca36671
DM		 1562 }
1563
1564 if ($rule->{source}) {
041b9277
DM		 1565 eval {
1566 my $source_ipversion = parse_address_list($rule->{source});
1567 &$set_ip_version($source_ipversion);
1568 };
6d9246e7 1569 &$add_error('source', $@) if $@;
ae029a88 1570 &$check_ipset_or_alias_property('source', $ipversion);
7ca36671
DM		 1571 }
1572
1573 if ($rule->{dest}) {
9e2205e5
DM		 1574 eval {
1575 my $dest_ipversion = parse_address_list($rule->{dest});
041b9277 1576 &$set_ip_version($dest_ipversion);
9e2205e5 1577 };
6d9246e7 1578 &$add_error('dest', $@) if $@;
ae029a88 1579 &$check_ipset_or_alias_property('dest', $ipversion);
7ca36671
DM		 1580 }
1581
35d1d6da
DM		 1582 $rule->{ipversion} = $ipversion if $ipversion;
1583
a523e057 1584 if ($rule->{macro} && !$error_count) {
35d1d6da 1585 eval { &$apply_macro($rule->{macro}, $rule, 1, $ipversion); };
6d9246e7
DM		 1586 if (my $err = $@) {
1587 if (ref($err) eq "PVE::Exception" && $err->{errors}) {
1588 my $eh = $err->{errors};
1589 foreach my $p (keys %$eh) {
1590 &$add_error($p, $eh->{$p});
1591 }
1592 } else {
1593 &$add_error('macro', "$err");
1594 }
1595 }
9a2745a0
DM		 1596 }
1597
6d9246e7
DM		 1598 $rule->{errors} = $errors if $error_count;
1599
7ca36671
DM		 1600 return $rule;
1601}
1602
9c7e0858
DM		 1603sub copy_rule_data {
1604 my ($rule, $param) = @_;
1605
1606 foreach my $k (keys %$rule_properties) {
1607 if (defined(my $v = $param->{$k})) {
1608 if ($v eq '' || $v eq '-') {
1609 delete $rule->{$k};
1610 } else {
1611 $rule->{$k} = $v;
1612 }
9c7e0858
DM		 1613 }
1614 }
7ca36671 1615
9c7e0858
DM		 1616 return $rule;
1617}
1618
9f6845cf
DM		 1619sub rules_modify_permissions {
1620 my ($rule_env) = @_;
1621
1622 if ($rule_env eq 'host') {
1623 return {
1624 check => ['perm', '/nodes/{node}', [ 'Sys.Modify' ]],
1625 };
1626 } elsif ($rule_env eq 'cluster' || $rule_env eq 'group') {
1627 return {
1628 check => ['perm', '/', [ 'Sys.Modify' ]],
1629 };
3b4882dc 1630 } elsif ($rule_env eq 'vm' || $rule_env eq 'ct') {
9f6845cf
DM		 1631 return {
1632 check => ['perm', '/vms/{vmid}', [ 'VM.Config.Network' ]],
1633 }
1634 }
1635
1636 return undef;
1637}
1638
1639sub rules_audit_permissions {
1640 my ($rule_env) = @_;
1641
1642 if ($rule_env eq 'host') {
1643 return {
1644 check => ['perm', '/nodes/{node}', [ 'Sys.Audit' ]],
1645 };
1646 } elsif ($rule_env eq 'cluster' || $rule_env eq 'group') {
1647 return {
1648 check => ['perm', '/', [ 'Sys.Audit' ]],
1649 };
3b4882dc 1650 } elsif ($rule_env eq 'vm' || $rule_env eq 'ct') {
9f6845cf
DM		 1651 return {
1652 check => ['perm', '/vms/{vmid}', [ 'VM.Audit' ]],
1653 }
1654 }
1655
1656 return undef;
1657}
1658
9c7e0858 1659# core functions
780bcc0f
DM		 1660my $bridge_firewall_enabled = 0;
1661
1662sub enable_bridge_firewall {
1663
1664 return if $bridge_firewall_enabled; # only once
1665
5f0a912c
DM		 1666 PVE::ProcFSTools::write_proc_entry("/proc/sys/net/bridge/bridge-nf-call-iptables", "1");
1667 PVE::ProcFSTools::write_proc_entry("/proc/sys/net/bridge/bridge-nf-call-ip6tables", "1");
780bcc0f 1668
6a8a75db
DM		 1669 # make sure syncookies are enabled (which is default on newer 3.X kernels anyways)
1670 PVE::ProcFSTools::write_proc_entry("/proc/sys/net/ipv4/tcp_syncookies", "1");
1671
780bcc0f
DM		 1672 $bridge_firewall_enabled = 1;
1673}
1674
b16e818e
DM		 1675sub iptables_restore_cmdlist {
1676 my ($cmdlist) = @_;
3a616aa0 1677
59f9b456 1678 run_command("/sbin/iptables-restore -n", input => $cmdlist, errmsg => "iptables_restore_cmdlist");
3a616aa0
AD		 1679}
1680
17da5c0f
AD		 1681sub ip6tables_restore_cmdlist {
1682 my ($cmdlist) = @_;
1683
59f9b456 1684 run_command("/sbin/ip6tables-restore -n", input => $cmdlist, errmsg => "iptables_restore_cmdlist");
17da5c0f
AD		 1685}
1686
34cdedfa
AD		 1687sub ipset_restore_cmdlist {
1688 my ($cmdlist) = @_;
1689
ff5363da 1690 run_command("/sbin/ipset restore", input => $cmdlist, errmsg => "ipset_restore_cmdlist");
34cdedfa
AD		 1691}
1692
de2a57cd 1693sub iptables_get_chains {
17da5c0f
AD		 1694 my ($iptablescmd) = @_;
1695
1696 $iptablescmd = "iptables" if !$iptablescmd;
de2a57cd
DM		 1697
1698 my $res = {};
1699
1700 # check what chains we want to track
1701 my $is_pvefw_chain = sub {
1702 my $name = shift;
1703
dec84fcd
DM		 1704 return 1 if $name =~ m/^PVEFW-\S+$/;
1705
a3ded5cd 1706 return 1 if $name =~ m/^tap\d+i\d+-(?:IN|OUT)$/;
954f24b1 1707
a3ded5cd 1708 return 1 if $name =~ m/^veth\d+i\d+-(?:IN|OUT)$/;
954f24b1 1709
a3ded5cd 1710 return 1 if $name =~ m/^fwbr\d+(v\d+)?-(?:FW|IN|OUT|IPS)$/;
a89dfcc6 1711 return 1 if $name =~ m/^GROUP-(?:$security_group_name_pattern)-(?:IN|OUT)$/;
de2a57cd
DM		 1712
1713 return undef;
1714 };
1715
1716 my $table = '';
1717
c4a2e5ae
DM		 1718 my $hooks = {};
1719
de2a57cd
DM		 1720 my $parser = sub {
1721 my $line = shift;
1722
1723 return if $line =~ m/^#/;
1724 return if $line =~ m/^\s*$/;
1725
1726 if ($line =~ m/^\*(\S+)$/) {
1727 $table = $1;
1728 return;
1729 }
1730
1731 return if $table ne 'filter';
1732
1733 if ($line =~ m/^:(\S+)\s/) {
1734 my $chain = $1;
1735 return if !&$is_pvefw_chain($chain);
3fa83edf 1736 $res->{$chain} = "unknown";
09d5f68e 1737 } elsif ($line =~ m/^-A\s+(\S+)\s.*--comment\s+\"PVESIG:(\S+)\"/) {
3fa83edf 1738 my ($chain, $sig) = ($1, $2);
de2a57cd 1739 return if !&$is_pvefw_chain($chain);
3fa83edf 1740 $res->{$chain} = $sig;
c4a2e5ae
DM		 1741 } elsif ($line =~ m/^-A\s+(INPUT|OUTPUT|FORWARD)\s+-j\s+PVEFW-\1$/) {
1742 $hooks->{$1} = 1;
de2a57cd
DM		 1743 } else {
1744 # simply ignore the rest
1745 return;
1746 }
1747 };
1748
17da5c0f 1749 run_command("/sbin/$iptablescmd-save", outfunc => $parser);
de2a57cd 1750
c4a2e5ae 1751 return wantarray ? ($res, $hooks) : $res;
de2a57cd
DM		 1752}
1753
9bf7d929
DM		 1754sub iptables_chain_digest {
1755 my ($rules) = @_;
1756 my $digest = Digest::SHA->new('sha1');
1757 foreach my $rule (@$rules) { # order is important
1758 $digest->add($rule);
1759 }
1760 return $digest->b64digest;
1761}
1762
3f95d14a
DM		 1763sub ipset_chain_digest {
1764 my ($rules) = @_;
4bd0a9c4 1765
3f95d14a
DM		 1766 my $digest = Digest::SHA->new('sha1');
1767 foreach my $rule (sort @$rules) { # note: sorted
1768 $digest->add($rule);
1769 }
1770 return $digest->b64digest;
1771}
1772
34cdedfa
AD		 1773sub ipset_get_chains {
1774
1775 my $res = {};
1776 my $chains = {};
1777
1778 my $parser = sub {
1779 my $line = shift;
1780
1781 return if $line =~ m/^#/;
1782 return if $line =~ m/^\s*$/;
4b96e877 1783 if ($line =~ m/^(?:\S+)\s(PVEFW-\S+)\s(?:\S+).*/) {
81a0bf43
DM		 1784 my $chain = $1;
1785 $line =~ s/\s+$//; # delete trailing white space
1786 push @{$chains->{$chain}}, $line;
34cdedfa
AD		 1787 } else {
1788 # simply ignore the rest
1789 return;
1790 }
1791 };
1792
ff5363da 1793 run_command("/sbin/ipset save", outfunc => $parser);
34cdedfa 1794
3f95d14a
DM		 1795 # compute digest for each chain
1796 foreach my $chain (keys %$chains) {
1797 $res->{$chain} = ipset_chain_digest($chains->{$chain});
34cdedfa
AD		 1798 }
1799
1800 return $res;
1801}
1802
180da76c
TW		 1803# substitude action of rule according to action hash
1804sub rule_substitude_action {
1805 my ($rule, $actions) = @_;
1806
1807 if (my $action = $rule->{action}) {
1808 $rule->{action} = $actions->{$action} if defined($actions->{$action});
1809 }
1810}
1811
a44cb745
TW		 1812# generate a src or dst match
1813# $dir(ection) is either d or s
1814sub ipt_gen_src_or_dst_match {
1815 my ($adr, $dir, $ipversion, $cluster_conf, $fw_conf) = @_;
1816
1817 my $srcdst;
1818 if ($dir eq 's') {
1819 $srcdst = "src";
1820 } elsif ($dir eq 'd') {
1821 $srcdst = "dst";
1822 } else {
1823 die "ipt_gen_src_or_dst_match: invalid direction $dir \n";
1824 }
1825
1826 my $match;
1827 if ($adr =~ m/^\+/) {
1828 if ($adr =~ m/^\+(${ipset_name_pattern})$/) {
1829 my $name = $1;
1830 my $ipset_chain;
1831 if ($fw_conf && $fw_conf->{ipset}->{$name}) {
1832 $ipset_chain = compute_ipset_chain_name($fw_conf->{vmid}, $name, $ipversion);
1833 } elsif ($cluster_conf && $cluster_conf->{ipset}->{$name}) {
1834 $ipset_chain = compute_ipset_chain_name(0, $name, $ipversion);
1835 } else {
1836 die "no such ipset '$name'\n";
1837 }
1838 $match = "-m set --match-set ${ipset_chain} ${srcdst}";
1839 } else {
1840 die "invalid security group name '$adr'\n";
1841 }
1842 } elsif ($adr =~ m/^${ip_alias_pattern}$/){
1843 my $alias = lc($adr);
1844 my $e = $fw_conf ? $fw_conf->{aliases}->{$alias} : undef;
1845 $e = $cluster_conf->{aliases}->{$alias} if !$e && $cluster_conf;
1846 die "no such alias '$adr'\n" if !$e;
1847 $match = "-${dir} $e->{cidr}";
1848 } elsif ($adr =~ m/\-/){
1849 $match = "-m iprange --${srcdst}-range $adr";
1850 } else {
1851 $match = "-${dir} $adr";
1852 }
1853
1854 return $match;
1855}
1856
30c390f9
TW		 1857# convert a %rule to an array of iptables commands
1858sub ipt_rule_to_cmds {
1859 my ($rule, $chain, $ipversion, $cluster_conf, $fw_conf, $vmid) = @_;
1860
1861 die "ipt_rule_to_cmds unable to handle macro" if $rule->{macro}; #should not happen
1862
1863 my @match = ();
1864
1865 if (defined $rule->{match}) {
1866 push @match, $rule->{match};
1867 } else {
1868 push @match, "-i $rule->{iface_in}" if $rule->{iface_in};
1869 push @match, "-o $rule->{iface_out}" if $rule->{iface_out};
1870
1871 if ($rule->{source}) {
1872 push @match, ipt_gen_src_or_dst_match($rule->{source}, 's', $ipversion, $cluster_conf, $fw_conf);
1873 }
1874 if ($rule->{dest}) {
1875 push @match, ipt_gen_src_or_dst_match($rule->{dest}, 'd', $ipversion, $cluster_conf, $fw_conf);
1876 }
1877
1878 if (my $proto = $rule->{proto}) {
1879 push @match, "-p $proto";
1880
1881 my $nbdport = defined($rule->{dport}) ? parse_port_name_number_or_range($rule->{dport}, 1) : 0;
1882 my $nbsport = defined($rule->{sport}) ? parse_port_name_number_or_range($rule->{sport}, 0) : 0;
1883
1884 my $multiport = 0;
1885 $multiport++ if $nbdport > 1;
1886 $multiport++ if $nbsport > 1;
1887
1888 push @match, "--match multiport" if $multiport;
1889
1890 die "multiport: option '--sports' cannot be used together with '--dports'\n"
1891 if ($multiport == 2) && ($rule->{dport} ne $rule->{sport});
1892
1893 if ($rule->{dport}) {
1894 if ($proto eq 'icmp') {
1895 # Note: we use dport to store --icmp-type
1896 die "unknown icmp-type '$rule->{dport}'\n"
1897 if $rule->{dport} !~ /^\d+$/ && !defined($icmp_type_names->{$rule->{dport}});
1898 push @match, "-m icmp --icmp-type $rule->{dport}";
1899 } elsif ($proto eq 'icmpv6') {
1900 # Note: we use dport to store --icmpv6-type
1901 die "unknown icmpv6-type '$rule->{dport}'\n"
1902 if $rule->{dport} !~ /^\d+$/ && !defined($icmpv6_type_names->{$rule->{dport}});
1903 push @match, "-m icmpv6 --icmpv6-type $rule->{dport}";
1904 } elsif (!$PROTOCOLS_WITH_PORTS->{$proto}) {
1905 die "protocol $proto does not have ports\n";
1906 } else {
1907 if ($nbdport > 1) {
1908 if ($multiport == 2) {
1909 push @match, "--ports $rule->{dport}";
1910 } else {
1911 push @match, "--dports $rule->{dport}";
1912 }
1913 } else {
1914 push @match, "--dport $rule->{dport}";
1915 }
1916 }
1917 }
1918
1919 if ($rule->{sport}) {
1920 die "protocol $proto does not have ports\n"
1921 if !$PROTOCOLS_WITH_PORTS->{$proto};
1922 if ($nbsport > 1) {
1923 push @match, "--sports $rule->{sport}" if $multiport != 2;
1924 } else {
1925 push @match, "--sport $rule->{sport}";
1926 }
1927 }
1928 } elsif ($rule->{dport} || $rule->{sport}) {
1929 die "destination port '$rule->{dport}', but no protocol specified\n" if $rule->{dport};
1930 die "source port '$rule->{sport}', but no protocol specified\n" if $rule->{sport};
1931 }
1932
1933 push @match, "-m addrtype --dst-type $rule->{dsttype}" if $rule->{dsttype};
1934 }
1935 my $matchstr = scalar(@match) ? join(' ', @match) : "";
1936
1937 my $targetstr;
1938 if (defined $rule->{target}) {
1939 $targetstr = $rule->{target};
1940 } else {
1941 my $action = (defined $rule->{action}) ? $rule->{action} : "";
1942 my $goto = 1 if $action eq 'PVEFW-SET-ACCEPT-MARK';
1943 $targetstr = ($goto) ? "-g $action" : "-j $action";
1944 }
1945
1946 my @iptcmds;
1947 if (defined $rule->{log} && $rule->{log}) {
1948 my $logaction = get_log_rule_base($chain, $vmid, $rule->{logmsg}, $rule->{log});
1949 push @iptcmds, "-A $chain $matchstr $logaction";
1950 }
1951 push @iptcmds, "-A $chain $matchstr $targetstr";
1952 return @iptcmds;
1953}
1954
1e9c5070 1955sub ruleset_generate_match {
88c26d5e 1956 my ($ruleset, $chain, $ipversion, $rule, $actions, $goto, $cluster_conf, $fw_conf) = @_;
3a616aa0 1957
00bb4391 1958 return if defined($rule->{enable}) && !$rule->{enable};
6d9246e7 1959 return if $rule->{errors};
11bac5c2 1960
044409e5
TW		 1961 return $rule->{match} if defined $rule->{match};
1962
e5076eee
DM		 1963 die "unable to emit macro - internal error" if $rule->{macro}; # should not happen
1964
a1c04f71
WB		 1965 my $nbdport = defined($rule->{dport}) ? parse_port_name_number_or_range($rule->{dport}, 1) : 0;
1966 my $nbsport = defined($rule->{sport}) ? parse_port_name_number_or_range($rule->{sport}, 0) : 0;
e5076eee 1967
41524a58 1968 my @cmd = ();
3a616aa0 1969
eba0fb64
DM		 1970 push @cmd, "-i $rule->{iface_in}" if $rule->{iface_in};
1971 push @cmd, "-o $rule->{iface_out}" if $rule->{iface_out};
1972
ba791b1f
AD		 1973 my $source = $rule->{source};
1974 my $dest = $rule->{dest};
1975
a44cb745
TW		 1976 push @cmd, ipt_gen_src_or_dst_match($source, 's', $ipversion, $cluster_conf, $fw_conf) if $source;
1977 push @cmd, ipt_gen_src_or_dst_match($dest, 'd', $ipversion, $cluster_conf, $fw_conf) if $dest;
4b586518 1978
95e35949
WB		 1979 if (my $proto = $rule->{proto}) {
1980 push @cmd, "-p $proto";
e3a1d391 1981
181390b0 1982 my $multiport = 0;
e5076eee
DM		 1983 $multiport++ if $nbdport > 1;
1984 $multiport++ if $nbsport > 1;
e3a1d391 1985
41524a58 1986 push @cmd, "--match multiport" if $multiport;
4b586518 1987
cbb5d6f3 1988 die "multiport: option '--sports' cannot be used together with '--dports'\n"
181390b0
DM		 1989 if ($multiport == 2) && ($rule->{dport} ne $rule->{sport});
1990
1991 if ($rule->{dport}) {
95e35949 1992 if ($proto eq 'icmp') {
181390b0 1993 # Note: we use dport to store --icmp-type
9bd7a4b3
WB		 1994 die "unknown icmp-type '$rule->{dport}'\n"
1995 if $rule->{dport} !~ /^\d+$/ && !defined($icmp_type_names->{$rule->{dport}});
41524a58 1996 push @cmd, "-m icmp --icmp-type $rule->{dport}";
95e35949 1997 } elsif ($proto eq 'icmpv6') {
041b9277 1998 # Note: we use dport to store --icmpv6-type
9bd7a4b3
WB		 1999 die "unknown icmpv6-type '$rule->{dport}'\n"
2000 if $rule->{dport} !~ /^\d+$/ && !defined($icmpv6_type_names->{$rule->{dport}});
041b9277 2001 push @cmd, "-m icmpv6 --icmpv6-type $rule->{dport}";
48e3963e
WB		 2002 } elsif (!$PROTOCOLS_WITH_PORTS->{$proto}) {
2003 die "protocol $proto does not have ports\n";
181390b0 2004 } else {
e5076eee 2005 if ($nbdport > 1) {
181390b0 2006 if ($multiport == 2) {
41524a58 2007 push @cmd, "--ports $rule->{dport}";
181390b0 2008 } else {
41524a58 2009 push @cmd, "--dports $rule->{dport}";
181390b0 2010 }
e3a1d391 2011 } else {
41524a58 2012 push @cmd, "--dport $rule->{dport}";
e3a1d391 2013 }
4b586518
DM		 2014 }
2015 }
4b586518 2016
181390b0 2017 if ($rule->{sport}) {
48e3963e
WB		 2018 die "protocol $proto does not have ports\n"
2019 if !$PROTOCOLS_WITH_PORTS->{$proto};
e5076eee 2020 if ($nbsport > 1) {
41524a58 2021 push @cmd, "--sports $rule->{sport}" if $multiport != 2;
181390b0 2022 } else {
41524a58 2023 push @cmd, "--sport $rule->{sport}";
181390b0 2024 }
4b586518 2025 }
181390b0 2026 } elsif ($rule->{dport} || $rule->{sport}) {
93d96f83
DM		 2027 die "destination port '$rule->{dport}', but no protocol specified\n" if $rule->{dport};
2028 die "source port '$rule->{sport}', but no protocol specified\n" if $rule->{sport};
4b586518
DM		 2029 }
2030
41524a58 2031 push @cmd, "-m addrtype --dst-type $rule->{dsttype}" if $rule->{dsttype};
4e6112f9 2032
1e9c5070
TW		 2033 return scalar(@cmd) ? join(' ', @cmd) : undef;
2034}
2035
2036sub ruleset_generate_action {
2037 my ($ruleset, $chain, $ipversion, $rule, $actions, $goto, $cluster_conf, $fw_conf) = @_;
2038
044409e5
TW		 2039 return $rule->{target} if defined $rule->{target};
2040
1e9c5070
TW		 2041 my @cmd = ();
2042
4e6112f9 2043 if (my $action = $rule->{action}) {
cbb5d6f3 2044 $action = $actions->{$action} if defined($actions->{$action});
4e6112f9 2045 $goto = 1 if !defined($goto) && $action eq 'PVEFW-SET-ACCEPT-MARK';
41524a58 2046 push @cmd, $goto ? "-g $action" : "-j $action";
181390b0 2047 }
3a616aa0 2048
eba0fb64
DM		 2049 return scalar(@cmd) ? join(' ', @cmd) : undef;
2050}
2051
2052sub ruleset_generate_rule {
2dc0a26e 2053 my ($ruleset, $chain, $ipversion, $rule, $cluster_conf, $fw_conf) = @_;
eba0fb64 2054
e5076eee
DM		 2055 my $rules;
2056
2057 if ($rule->{macro}) {
35d1d6da 2058 $rules = &$apply_macro($rule->{macro}, $rule, 0, $ipversion);
e5076eee
DM		 2059 } else {
2060 $rules = [ $rule ];
2061 }
2062
30c390f9
TW		 2063 # update all or nothing
2064 my @ipt_rule_cmds;
2065 foreach my $r (@$rules) {
2066 push @ipt_rule_cmds, ipt_rule_to_cmds($r, $chain, $ipversion, $cluster_conf, $fw_conf);
2067 }
2068 foreach my $c (@ipt_rule_cmds) {
2069 ruleset_add_ipt_cmd($ruleset, $chain, $c);
2070 }
2071}
2072
eba0fb64 2073sub ruleset_generate_rule_insert {
88c26d5e 2074 my ($ruleset, $chain, $ipversion, $rule, $actions, $goto) = @_;
eba0fb64 2075
e5076eee
DM		 2076 die "implement me" if $rule->{macro}; # not implemented, because not needed so far
2077
1e9c5070
TW		 2078 my $match = ruleset_generate_match($ruleset, $chain, $ipversion, $rule, $actions, $goto);
2079 my $action = ruleset_generate_action($ruleset, $chain, $ipversion, $rule, $actions, $goto);
2080 if (defined $match && defined $action) {
2081 ruleset_insertrule($ruleset, $chain, $match, $action);
eba0fb64
DM		 2082 }
2083}
3fa83edf
DM		 2084
2085sub ruleset_create_chain {
2086 my ($ruleset, $chain) = @_;
3a616aa0 2087
d050c724 2088 die "Invalid chain name '$chain' (28 char max)\n" if length($chain) > 28;
782c4cde 2089 die "chain name may not contain collons\n" if $chain =~ m/:/; # because of log format
d050c724 2090
3fa83edf
DM		 2091 die "chain '$chain' already exists\n" if $ruleset->{$chain};
2092
2093 $ruleset->{$chain} = [];
3a616aa0
AD		 2094}
2095
3fa83edf
DM		 2096sub ruleset_chain_exist {
2097 my ($ruleset, $chain) = @_;
3a616aa0 2098
3fa83edf
DM		 2099 return $ruleset->{$chain} ? 1 : undef;
2100}
3a616aa0 2101
30c390f9
TW		 2102# add an iptables command (like generated by ipt_rule_to_cmds) to a chain
2103sub ruleset_add_ipt_cmd {
2104 my ($ruleset, $chain, $iptcmd) = @_;
2105
2106 die "no such chain '$chain'\n" if !$ruleset->{$chain};
2107
2108 push @{$ruleset->{$chain}}, $iptcmd;
2109}
2110
1e9c5070 2111sub ruleset_addrule {
7f7930f8 2112 my ($ruleset, $chain, $match, $action, $log, $logmsg, $vmid) = @_;
1e9c5070
TW		 2113
2114 die "no such chain '$chain'\n" if !$ruleset->{$chain};
2115
7f7930f8
TW		 2116 if (defined($log) && $log) {
2117 my $logaction = get_log_rule_base($chain, $vmid, $logmsg, $log);
2118 push @{$ruleset->{$chain}}, "-A $chain $match $logaction";
2119 }
1e9c5070
TW		 2120 push @{$ruleset->{$chain}}, "-A $chain $match $action";
2121}
2122
3fa83edf 2123sub ruleset_insertrule {
1e9c5070 2124 my ($ruleset, $chain, $match, $action, $log) = @_;
3a616aa0 2125
3fa83edf 2126 die "no such chain '$chain'\n" if !$ruleset->{$chain};
3a616aa0 2127
1e9c5070 2128 unshift @{$ruleset->{$chain}}, "-A $chain $match $action";
3fa83edf 2129}
3a616aa0 2130
782c4cde
DM		 2131sub get_log_rule_base {
2132 my ($chain, $vmid, $msg, $loglevel) = @_;
cbb5d6f3 2133
782c4cde 2134 $vmid = 0 if !defined($vmid);
7f7930f8 2135 $msg = "" if !defined($msg);
782c4cde 2136
cbb5d6f3 2137 # Note: we use special format for prefix to pass further
7f7930f8 2138 # info to log daemon (VMID, LOGLEVEL and CHAIN)
782c4cde
DM		 2139
2140 return "-j NFLOG --nflog-prefix \":$vmid:$loglevel:$chain: $msg\"";
2141}
2142
ead850e8 2143sub ruleset_add_chain_policy {
88c26d5e 2144 my ($ruleset, $chain, $ipversion, $vmid, $policy, $loglevel, $accept_action) = @_;
ead850e8
DM		 2145
2146 if ($policy eq 'ACCEPT') {
2147
180da76c
TW		 2148 my $rule = { action => 'ACCEPT' };
2149 rule_substitude_action($rule, { ACCEPT => $accept_action});
2150 ruleset_generate_rule($ruleset, $chain, $ipversion, $rule);
ead850e8
DM		 2151
2152 } elsif ($policy eq 'DROP') {
2153
1e9c5070 2154 ruleset_addrule($ruleset, $chain, "", "-j PVEFW-Drop");
ead850e8 2155
7f7930f8 2156 ruleset_addrule($ruleset, $chain, "", "-j DROP", $loglevel, "policy $policy: ", $vmid);
ead850e8 2157 } elsif ($policy eq 'REJECT') {
1e9c5070 2158 ruleset_addrule($ruleset, $chain, "", "-j PVEFW-Reject");
ead850e8 2159
7f7930f8 2160 ruleset_addrule($ruleset, $chain, "", "-g PVEFW-reject", $loglevel, "policy $policy:", $vmid);
ead850e8
DM		 2161 } else {
2162 # should not happen
2163 die "internal error: unknown policy '$policy'";
2164 }
2165}
2166
a83abe93 2167sub ruleset_chain_add_ndp {
e8415920 2168 my ($ruleset, $chain, $ipversion, $options, $direction, $accept) = @_;
a83abe93
WB		 2169 return if $ipversion != 6 || (defined($options->{ndp}) && !$options->{ndp});
2170
1e9c5070 2171 ruleset_addrule($ruleset, $chain, "-p icmpv6 --icmpv6-type router-solicitation", $accept);
d7aa51ac 2172 if ($direction ne 'OUT' || $options->{radv}) {
1e9c5070 2173 ruleset_addrule($ruleset, $chain, "-p icmpv6 --icmpv6-type router-advertisement", $accept);
d7aa51ac 2174 }
1e9c5070
TW		 2175 ruleset_addrule($ruleset, $chain, "-p icmpv6 --icmpv6-type neighbor-solicitation", $accept);
2176 ruleset_addrule($ruleset, $chain, "-p icmpv6 --icmpv6-type neighbor-advertisement", $accept);
a83abe93
WB		 2177}
2178
e2943485
DM		 2179sub ruleset_chain_add_conn_filters {
2180 my ($ruleset, $chain, $accept) = @_;
2181
1e9c5070
TW		 2182 ruleset_addrule($ruleset, $chain, "-m conntrack --ctstate INVALID", "-j DROP");
2183 ruleset_addrule($ruleset, $chain, "-m conntrack --ctstate RELATED,ESTABLISHED", "-j $accept");
e2943485
DM		 2184}
2185
2186sub ruleset_chain_add_input_filters {
88c26d5e 2187 my ($ruleset, $chain, $ipversion, $options, $cluster_conf, $loglevel) = @_;
2428e394
AD		 2188
2189 if ($cluster_conf->{ipset}->{blacklist}){
b5831a0d
AD		 2190 if (!ruleset_chain_exist($ruleset, "PVEFW-blacklist")) {
2191 ruleset_create_chain($ruleset, "PVEFW-blacklist");
7f7930f8 2192 ruleset_addrule($ruleset, "PVEFW-blacklist", "", "-j DROP", $loglevel, "DROP: ");
b5831a0d 2193 }
88c26d5e 2194 my $ipset_chain = compute_ipset_chain_name(0, 'blacklist', $ipversion);
1e9c5070 2195 ruleset_addrule($ruleset, $chain, "-m set --match-set ${ipset_chain} src", "-j PVEFW-blacklist");
2428e394 2196 }
e2943485
DM		 2197
2198 if (!(defined($options->{nosmurfs}) && $options->{nosmurfs} == 0)) {
5b5c42b1 2199 if ($ipversion == 4) {
1e9c5070 2200 ruleset_addrule($ruleset, $chain, "-m conntrack --ctstate INVALID,NEW", "-j PVEFW-smurfs");
5b5c42b1 2201 }
e2943485
DM		 2202 }
2203
2204 if ($options->{tcpflags}) {
1e9c5070 2205 ruleset_addrule($ruleset, $chain, "-p tcp", "-j PVEFW-tcpflags");
e2943485
DM		 2206 }
2207}
2208
9e15114a 2209sub ruleset_create_vm_chain {
88c26d5e 2210 my ($ruleset, $chain, $ipversion, $options, $macaddr, $ipfilter_ipset, $direction) = @_;
3a616aa0 2211
9e15114a 2212 ruleset_create_chain($ruleset, $chain);
b47ecc88 2213 my $accept = generate_nfqueue($options);
3a616aa0 2214
ce15d90b 2215 if (!(defined($options->{dhcp}) && $options->{dhcp} == 0)) {
dcafc5fb
WB		 2216 if ($ipversion == 4) {
2217 if ($direction eq 'OUT') {
2218 ruleset_generate_rule($ruleset, $chain, $ipversion,
2219 { action => 'PVEFW-SET-ACCEPT-MARK',
2220 proto => 'udp', sport => 68, dport => 67 });
2221 } else {
2222 ruleset_generate_rule($ruleset, $chain, $ipversion,
2223 { action => 'ACCEPT',
2224 proto => 'udp', sport => 67, dport => 68 });
2225 }
2226 } elsif ($ipversion == 6) {
2227 if ($direction eq 'OUT') {
2228 ruleset_generate_rule($ruleset, $chain, $ipversion,
2229 { action => 'PVEFW-SET-ACCEPT-MARK',
2230 proto => 'udp', sport => 546, dport => 547 });
2231 } else {
2232 ruleset_generate_rule($ruleset, $chain, $ipversion,
2233 { action => 'ACCEPT',
2234 proto => 'udp', sport => 547, dport => 546 });
2235 }
76a2d1e7 2236 }
dcafc5fb 2237
ce15d90b
DM		 2238 }
2239
b21aca2c
DM		 2240 if ($direction eq 'OUT') {
2241 if (defined($macaddr) && !(defined($options->{macfilter}) && $options->{macfilter} == 0)) {
1e9c5070 2242 ruleset_addrule($ruleset, $chain, "-m mac ! --mac-source $macaddr", "-j DROP");
b21aca2c 2243 }
d7aa51ac 2244 if ($ipversion == 6 && !$options->{radv}) {
1e9c5070 2245 ruleset_addrule($ruleset, $chain, "-p icmpv6 --icmpv6-type router-advertisement", "-j DROP");
d7aa51ac 2246 }
808d711d 2247 if ($ipfilter_ipset) {
1e9c5070 2248 ruleset_addrule($ruleset, $chain, "-m set ! --match-set $ipfilter_ipset src", "-j DROP");
808d711d 2249 }
1e9c5070 2250 ruleset_addrule($ruleset, $chain, "", "-j MARK --set-mark $FWACCEPTMARK_OFF"); # clear mark
c29f55c9 2251 }
e8415920
WB		 2252
2253 my $accept_action = $direction eq 'OUT' ? '-g PVEFW-SET-ACCEPT-MARK' : "-j $accept";
2254 ruleset_chain_add_ndp($ruleset, $chain, $ipversion, $options, $direction, $accept_action);
9e15114a
DM		 2255}
2256
4bc6b5ac 2257sub ruleset_add_group_rule {
aedde2c2 2258 my ($ruleset, $cluster_conf, $chain, $rule, $direction, $action, $ipversion) = @_;
4bc6b5ac
DM		 2259
2260 my $group = $rule->{action};
2261 my $group_chain = "GROUP-$group-$direction";
2262 if(!ruleset_chain_exist($ruleset, $group_chain)){
aedde2c2 2263 generate_group_rules($ruleset, $cluster_conf, $group, $ipversion);
4bc6b5ac 2264 }
bfc488f6 2265
f8b12fff 2266 if ($direction eq 'OUT' && $rule->{iface_out}) {
1e9c5070 2267 ruleset_addrule($ruleset, $chain, "-o $rule->{iface_out}", "-j $group_chain");
f8b12fff 2268 } elsif ($direction eq 'IN' && $rule->{iface_in}) {
1e9c5070 2269 ruleset_addrule($ruleset, $chain, "-i $rule->{iface_in}", "-j $group_chain");
4bc6b5ac 2270 } else {
1e9c5070 2271 ruleset_addrule($ruleset, $chain, "", "-j $group_chain");
4bc6b5ac
DM		 2272 }
2273
1e9c5070 2274 ruleset_addrule($ruleset, $chain, "-m mark --mark $FWACCEPTMARK_ON", "-j $action");
4bc6b5ac
DM		 2275}
2276
9e15114a 2277sub ruleset_generate_vm_rules {
84870b1a 2278 my ($ruleset, $rules, $cluster_conf, $vmfw_conf, $chain, $netid, $direction, $options, $ipversion) = @_;
9e15114a
DM		 2279
2280 my $lc_direction = lc($direction);
c29f55c9 2281
6b8ca015
DM		 2282 my $in_accept = generate_nfqueue($options);
2283
92e976b3
DM		 2284 foreach my $rule (@$rules) {
2285 next if $rule->{iface} && $rule->{iface} ne $netid;
b7ab6989 2286 next if !$rule->{enable} || $rule->{errors};
006490cb 2287 next if $rule->{ipversion} && ($rule->{ipversion} != $ipversion);
84870b1a 2288
92e976b3 2289 if ($rule->{type} eq 'group') {
4bc6b5ac 2290 ruleset_add_group_rule($ruleset, $cluster_conf, $chain, $rule, $direction,
aedde2c2 2291 $direction eq 'OUT' ? 'RETURN' : $in_accept, $ipversion);
92e976b3
DM		 2292 } else {
2293 next if $rule->{type} ne $lc_direction;
921dfb33
DM		 2294 eval {
2295 if ($direction eq 'OUT') {
180da76c 2296 rule_substitude_action($rule, { ACCEPT => "PVEFW-SET-ACCEPT-MARK", REJECT => "PVEFW-reject" });
2dc0a26e 2297 ruleset_generate_rule($ruleset, $chain, $ipversion, $rule, $cluster_conf, $vmfw_conf);
921dfb33 2298 } else {
180da76c 2299 rule_substitude_action($rule, { ACCEPT => $in_accept , REJECT => "PVEFW-reject" });
2dc0a26e 2300 ruleset_generate_rule($ruleset, $chain, $ipversion, $rule, $cluster_conf, $vmfw_conf);
921dfb33
DM		 2301 }
2302 };
2303 warn $@ if $@;
4e6112f9 2304 }
3a616aa0 2305 }
9e15114a
DM		 2306}
2307
b47ecc88
AD		 2308sub generate_nfqueue {
2309 my ($options) = @_;
2310
73089769
DM		 2311 if ($options->{ips}) {
2312 my $action = "NFQUEUE";
2313 if ($options->{ips_queues} && $options->{ips_queues} =~ m/^(\d+)(:(\d+))?$/) {
2314 if (defined($3) && defined($1)) {
b47ecc88 2315 $action .= " --queue-balance $1:$3";
73089769 2316 } elsif (defined($1)) {
b47ecc88
AD		 2317 $action .= " --queue-num $1";
2318 }
2319 }
8dc92812 2320 $action .= " --queue-bypass" if $feature_ipset_nomatch; #need kernel 3.10
73089769
DM		 2321 return $action;
2322 } else {
2323 return "ACCEPT";
b47ecc88 2324 }
b47ecc88
AD		 2325}
2326
da6fc60b 2327sub ruleset_generate_vm_ipsrules {
a01c32c7 2328 my ($ruleset, $options, $direction, $iface) = @_;
da6fc60b
AD		 2329
2330 if ($options->{ips} && $direction eq 'IN') {
2331 my $nfqueue = generate_nfqueue($options);
2332
a01c32c7 2333 if (!ruleset_chain_exist($ruleset, "PVEFW-IPS")) {
da6fc60b
AD		 2334 ruleset_create_chain($ruleset, "PVEFW-IPS");
2335 }
2336
1e9c5070 2337 ruleset_addrule($ruleset, "PVEFW-IPS", "-m physdev --physdev-out $iface --physdev-is-bridged", "-j $nfqueue");
da6fc60b
AD		 2338 }
2339}
2340
9e15114a 2341sub generate_tap_rules_direction {
84870b1a 2342 my ($ruleset, $cluster_conf, $iface, $netid, $macaddr, $vmfw_conf, $vmid, $direction, $ipversion) = @_;
9e15114a
DM		 2343
2344 my $lc_direction = lc($direction);
2345
2346 my $rules = $vmfw_conf->{rules};
2347
2348 my $options = $vmfw_conf->{options};
2349 my $loglevel = get_option_log_level($options, "log_level_${lc_direction}");
2350
2351 my $tapchain = "$iface-$direction";
2352
b692f42c 2353 my $ipfilter_name = compute_ipfilter_ipset_name($netid);
88c26d5e 2354 my $ipfilter_ipset = compute_ipset_chain_name($vmid, $ipfilter_name, $ipversion)
74601077 2355 if $options->{ipfilter} || $vmfw_conf->{ipset}->{$ipfilter_name};
808d711d 2356
a34cfdd0 2357 # create chain with mac and ip filter
88c26d5e 2358 ruleset_create_vm_chain($ruleset, $tapchain, $ipversion, $options, $macaddr, $ipfilter_ipset, $direction);
9e15114a 2359
a34cfdd0 2360 if ($options->{enable}) {
84870b1a 2361 ruleset_generate_vm_rules($ruleset, $rules, $cluster_conf, $vmfw_conf, $tapchain, $netid, $direction, $options, $ipversion);
3a616aa0 2362
a34cfdd0 2363 ruleset_generate_vm_ipsrules($ruleset, $options, $direction, $iface);
da6fc60b 2364
a34cfdd0
DM		 2365 # implement policy
2366 my $policy;
ccae0b50 2367
a34cfdd0
DM		 2368 if ($direction eq 'OUT') {
2369 $policy = $options->{policy_out} || 'ACCEPT'; # allow everything by default
2370 } else {
72f63fde 2371 $policy = $options->{policy_in} || 'DROP'; # allow nothing by default
a34cfdd0 2372 }
ccae0b50 2373
a34cfdd0
DM		 2374 my $accept = generate_nfqueue($options);
2375 my $accept_action = $direction eq 'OUT' ? "PVEFW-SET-ACCEPT-MARK" : $accept;
88c26d5e 2376 ruleset_add_chain_policy($ruleset, $tapchain, $ipversion, $vmid, $policy, $loglevel, $accept_action);
a34cfdd0
DM		 2377 } else {
2378 my $accept_action = $direction eq 'OUT' ? "PVEFW-SET-ACCEPT-MARK" : 'ACCEPT';
88c26d5e 2379 ruleset_add_chain_policy($ruleset, $tapchain, $ipversion, $vmid, 'ACCEPT', $loglevel, $accept_action);
a34cfdd0 2380 }
3a616aa0 2381
3fa83edf 2382 # plug the tap chain to bridge chain
3cc81077 2383 if ($direction eq 'IN') {
a01c32c7 2384 ruleset_addrule($ruleset, "PVEFW-FWBR-IN",
1e9c5070 2385 "-m physdev --physdev-is-bridged --physdev-out $iface", "-j $tapchain");
3cc81077 2386 } else {
a01c32c7 2387 ruleset_addrule($ruleset, "PVEFW-FWBR-OUT",
1e9c5070 2388 "-m physdev --physdev-is-bridged --physdev-in $iface", "-j $tapchain");
3cc81077 2389 }
3a616aa0
AD		 2390}
2391
d18c1e2b 2392sub enable_host_firewall {
aedde2c2 2393 my ($ruleset, $hostfw_conf, $cluster_conf, $ipversion) = @_;
0bd5f137 2394
92e976b3 2395 my $options = $hostfw_conf->{options};
63324b09 2396 my $cluster_options = $cluster_conf->{options};
92e976b3 2397 my $rules = $hostfw_conf->{rules};
35f0c37e 2398 my $cluster_rules = $cluster_conf->{rules};
178a63be 2399
3fa83edf 2400 # host inbound firewall
dec84fcd
DM		 2401 my $chain = "PVEFW-HOST-IN";
2402 ruleset_create_chain($ruleset, $chain);
0bd5f137 2403
178a63be
DM		 2404 my $loglevel = get_option_log_level($options, "log_level_in");
2405
1e9c5070 2406 ruleset_addrule($ruleset, $chain, "-i lo", "-j ACCEPT");
4ac863a6 2407
e2943485 2408 ruleset_chain_add_conn_filters($ruleset, $chain, 'ACCEPT');
e8415920 2409 ruleset_chain_add_ndp($ruleset, $chain, $ipversion, $options, 'IN', '-j RETURN');
88c26d5e 2410 ruleset_chain_add_input_filters($ruleset, $chain, $ipversion, $options, $cluster_conf, $loglevel);
fb424a00 2411
23e888f8
DM		 2412 # we use RETURN because we need to check also tap rules
2413 my $accept_action = 'RETURN';
2414
1e9c5070 2415 ruleset_addrule($ruleset, $chain, "-p igmp", "-j $accept_action"); # important for multicast
cc8dc02f 2416
35f0c37e
DM		 2417 # add host rules first, so that cluster wide rules can be overwritten
2418 foreach my $rule (@$rules, @$cluster_rules) {
5383df39 2419 next if !$rule->{enable} || $rule->{errors};
35d1d6da 2420 next if $rule->{ipversion} && ($rule->{ipversion} != $ipversion);
bfc488f6 2421
f8b12fff 2422 $rule->{iface_in} = $rule->{iface} if $rule->{iface};
5383df39 2423
1a9978ed
DM		 2424 eval {
2425 if ($rule->{type} eq 'group') {
aedde2c2 2426 ruleset_add_group_rule($ruleset, $cluster_conf, $chain, $rule, 'IN', $accept_action, $ipversion);
1a9978ed 2427 } elsif ($rule->{type} eq 'in') {
180da76c 2428 rule_substitude_action($rule, { ACCEPT => $accept_action, REJECT => "PVEFW-reject" });
2dc0a26e 2429 ruleset_generate_rule($ruleset, $chain, $ipversion, $rule, $cluster_conf, $hostfw_conf);
1a9978ed
DM		 2430 }
2431 };
2432 warn $@ if $@;
f8b12fff 2433 delete $rule->{iface_in};
0bd5f137 2434 }
eb399cef
DM		 2435
2436 # allow standard traffic for management ipset (includes cluster network)
88c26d5e 2437 my $mngmnt_ipset_chain = compute_ipset_chain_name(0, "management", $ipversion);
708ba714 2438 my $mngmntsrc = "-m set --match-set ${mngmnt_ipset_chain} src";
1e9c5070
TW		 2439 ruleset_addrule($ruleset, $chain, "$mngmntsrc -p tcp --dport 8006", "-j $accept_action"); # PVE API
2440 ruleset_addrule($ruleset, $chain, "$mngmntsrc -p tcp --dport 5900:5999", "-j $accept_action"); # PVE VNC Console
2441 ruleset_addrule($ruleset, $chain, "$mngmntsrc -p tcp --dport 3128", "-j $accept_action"); # SPICE Proxy
2442 ruleset_addrule($ruleset, $chain, "$mngmntsrc -p tcp --dport 22", "-j $accept_action"); # SSH
bfc488f6 2443
afcd29b3
DM		 2444 my $localnet = $cluster_conf->{aliases}->{local_network}->{cidr};
2445 my $localnet_ver = $cluster_conf->{aliases}->{local_network}->{ipversion};
3bc79f87 2446
eb399cef 2447 # corosync
35d1d6da 2448 if ($localnet && ($ipversion == $localnet_ver)) {
1e9c5070
TW		 2449 my $corosync_rule = "-p udp --dport 5404:5405";
2450 ruleset_addrule($ruleset, $chain, "-s $localnet -d $localnet $corosync_rule", "-j $accept_action");
2451 ruleset_addrule($ruleset, $chain, "-s $localnet -m addrtype --dst-type MULTICAST $corosync_rule", "-j $accept_action");
3bc79f87 2452 }
0bd5f137 2453
23e888f8 2454 # implement input policy
63324b09 2455 my $policy = $cluster_options->{policy_in} || 'DROP'; # allow nothing by default
88c26d5e 2456 ruleset_add_chain_policy($ruleset, $chain, $ipversion, 0, $policy, $loglevel, $accept_action);
0bd5f137 2457
3fa83edf 2458 # host outbound firewall
aadd745e 2459 $chain = "PVEFW-HOST-OUT";
dec84fcd
DM		 2460 ruleset_create_chain($ruleset, $chain);
2461
178a63be
DM		 2462 $loglevel = get_option_log_level($options, "log_level_out");
2463
1e9c5070 2464 ruleset_addrule($ruleset, $chain, "-o lo", "-j ACCEPT");
e2943485
DM		 2465
2466 ruleset_chain_add_conn_filters($ruleset, $chain, 'ACCEPT');
2467
23e888f8
DM		 2468 # we use RETURN because we may want to check other thigs later
2469 $accept_action = 'RETURN';
e8415920 2470 ruleset_chain_add_ndp($ruleset, $chain, $ipversion, $options, 'OUT', "-j $accept_action");
23e888f8 2471
1e9c5070 2472 ruleset_addrule($ruleset, $chain, "-p igmp", "-j $accept_action"); # important for multicast
cc8dc02f 2473
35f0c37e
DM		 2474 # add host rules first, so that cluster wide rules can be overwritten
2475 foreach my $rule (@$rules, @$cluster_rules) {
5383df39 2476 next if !$rule->{enable} || $rule->{errors};
35d1d6da 2477 next if $rule->{ipversion} && ($rule->{ipversion} != $ipversion);
5383df39 2478
f8b12fff 2479 $rule->{iface_out} = $rule->{iface} if $rule->{iface};
1a9978ed
DM		 2480 eval {
2481 if ($rule->{type} eq 'group') {
aedde2c2 2482 ruleset_add_group_rule($ruleset, $cluster_conf, $chain, $rule, 'OUT', $accept_action, $ipversion);
1a9978ed 2483 } elsif ($rule->{type} eq 'out') {
180da76c 2484 rule_substitude_action($rule, { ACCEPT => $accept_action, REJECT => "PVEFW-reject" });
2dc0a26e 2485 ruleset_generate_rule($ruleset, $chain, $ipversion, $rule, $cluster_conf, $hostfw_conf);
1a9978ed
DM		 2486 }
2487 };
2488 warn $@ if $@;
f8b12fff 2489 delete $rule->{iface_out};
0bd5f137
AD		 2490 }
2491
3bc79f87 2492 # allow standard traffic on cluster network
35d1d6da 2493 if ($localnet && ($ipversion == $localnet_ver)) {
1e9c5070
TW		 2494 ruleset_addrule($ruleset, $chain, "-d $localnet -p tcp --dport 8006", "-j $accept_action"); # PVE API
2495 ruleset_addrule($ruleset, $chain, "-d $localnet -p tcp --dport 22", "-j $accept_action"); # SSH
2496 ruleset_addrule($ruleset, $chain, "-d $localnet -p tcp --dport 5900:5999", "-j $accept_action"); # PVE VNC Console
2497 ruleset_addrule($ruleset, $chain, "-d $localnet -p tcp --dport 3128", "-j $accept_action"); # SPICE Proxy
bfc488f6 2498
1e9c5070
TW		 2499 my $corosync_rule = "-p udp --dport 5404:5405";
2500 ruleset_addrule($ruleset, $chain, "-d $localnet $corosync_rule", "-j $accept_action");
2501 ruleset_addrule($ruleset, $chain, "-m addrtype --dst-type MULTICAST $corosync_rule", "-j $accept_action");
3bc79f87
DM		 2502 }
2503
23e888f8 2504 # implement output policy
63324b09 2505 $policy = $cluster_options->{policy_out} || 'ACCEPT'; # allow everything by default
88c26d5e 2506 ruleset_add_chain_policy($ruleset, $chain, $ipversion, 0, $policy, $loglevel, $accept_action);
6158271d 2507
1e9c5070
TW		 2508 ruleset_addrule($ruleset, "PVEFW-OUTPUT", "", "-j PVEFW-HOST-OUT");
2509 ruleset_addrule($ruleset, "PVEFW-INPUT", "", "-j PVEFW-HOST-IN");
9d31b418
AD		 2510}
2511
2512sub generate_group_rules {
aedde2c2 2513 my ($ruleset, $cluster_conf, $group, $ipversion) = @_;
9d31b418 2514
c6f5cc88 2515 my $rules = $cluster_conf->{groups}->{$group};
6158271d 2516
b4deedab
DM		 2517 if (!$rules) {
2518 warn "no such security group '$group'\n";
2519 $rules = []; # create empty chain
2520 }
2521
3fa83edf 2522 my $chain = "GROUP-${group}-IN";
9d31b418 2523
3fa83edf 2524 ruleset_create_chain($ruleset, $chain);
1e9c5070 2525 ruleset_addrule($ruleset, $chain, "", "-j MARK --set-mark $FWACCEPTMARK_OFF"); # clear mark
9d31b418 2526
92e976b3
DM		 2527 foreach my $rule (@$rules) {
2528 next if $rule->{type} ne 'in';
aedde2c2 2529 next if $rule->{ipversion} && $rule->{ipversion} ne $ipversion;
180da76c 2530 rule_substitude_action($rule, { ACCEPT => "PVEFW-SET-ACCEPT-MARK", REJECT => "PVEFW-reject" });
2dc0a26e 2531 ruleset_generate_rule($ruleset, $chain, $ipversion, $rule, $cluster_conf);
9d31b418
AD		 2532 }
2533
3fa83edf 2534 $chain = "GROUP-${group}-OUT";
9d31b418 2535
3fa83edf 2536 ruleset_create_chain($ruleset, $chain);
1e9c5070 2537 ruleset_addrule($ruleset, $chain, "", "-j MARK --set-mark $FWACCEPTMARK_OFF"); # clear mark
9d31b418 2538
92e976b3
DM		 2539 foreach my $rule (@$rules) {
2540 next if $rule->{type} ne 'out';
aedde2c2 2541 next if $rule->{ipversion} && $rule->{ipversion} ne $ipversion;
92e976b3
DM		 2542 # we use PVEFW-SET-ACCEPT-MARK (Instead of ACCEPT) because we need to
2543 # check also other tap rules later
180da76c 2544 rule_substitude_action($rule, { ACCEPT => 'PVEFW-SET-ACCEPT-MARK', REJECT => "PVEFW-reject" });
2dc0a26e 2545 ruleset_generate_rule($ruleset, $chain, $ipversion, $rule, $cluster_conf);
9d31b418 2546 }
9d31b418
AD		 2547}
2548
51bae274
DM		 2549my $MAX_NETS = 32;
2550my $valid_netdev_names = {};
2551for (my $i = 0; $i < $MAX_NETS; $i++) {
2552 $valid_netdev_names->{"net$i"} = 1;
2553}
5e1267a5 2554
fe3d79b4
WB		 2555sub get_mark_values {
2556 my ($value, $mask) = @_;
2557 $value = hex($value) if $value =~ /^0x/;
2558 $mask = hex($mask) if defined($mask) && $mask =~ /^0x/;
2559 $mask = 0xffffffff if !defined($mask);
2560 return ($value, $mask);
2561}
2562
51bae274 2563sub parse_fw_rule {
a523e057 2564 my ($prefix, $line, $cluster_conf, $fw_conf, $rule_env, $verbose) = @_;
5e1267a5 2565
d4cda423
DM		 2566 my $orig_line = $line;
2567
6d9246e7
DM		 2568 my $rule = {};
2569
11bac5c2 2570 # we can add single line comments to the end of the rule
6d9246e7
DM		 2571 if ($line =~ s/#\s*(.*?)\s*$//) {
2572 $rule->{comment} = decode('utf8', $1);
2573 }
11bac5c2
DM		 2574
2575 # we can disable a rule when prefixed with '|'
ea9e5116 2576
6d9246e7 2577 $rule->{enable} = $line =~ s/^\|// ? 0 : 1;
51bae274 2578
dba740a9
DM		 2579 $line =~ s/^(\S+)\s+(\S+)\s*// ||
2580 die "unable to parse rule: $line\n";
6d9246e7
DM		 2581
2582 $rule->{type} = lc($1);
2583 $rule->{action} = $2;
2584
2585 if ($rule->{type} eq 'in' || $rule->{type} eq 'out') {
2586 if ($rule->{action} =~ m/^(\S+)\((ACCEPT|DROP|REJECT)\)$/) {
2587 $rule->{macro} = $1;
2588 $rule->{action} = $2;
92e976b3 2589 }
51bae274
DM		 2590 }
2591
dba740a9
DM		 2592 while (length($line)) {
2593 if ($line =~ s/^-i (\S+)\s*//) {
6d9246e7 2594 $rule->{iface} = $1;
dba740a9
DM		 2595 next;
2596 }
51bae274 2597
6d9246e7 2598 last if $rule->{type} eq 'group';
51bae274 2599
dba740a9 2600 if ($line =~ s/^-p (\S+)\s*//) {
6d9246e7 2601 $rule->{proto} = $1;
dba740a9
DM		 2602 next;
2603 }
6d9246e7 2604
dba740a9 2605 if ($line =~ s/^-dport (\S+)\s*//) {
6d9246e7 2606 $rule->{dport} = $1;
dba740a9
DM		 2607 next;
2608 }
6d9246e7 2609
dba740a9 2610 if ($line =~ s/^-sport (\S+)\s*//) {
6d9246e7 2611 $rule->{sport} = $1;
dba740a9
DM		 2612 next;
2613 }
2614 if ($line =~ s/^-source (\S+)\s*//) {
6d9246e7 2615 $rule->{source} = $1;
dba740a9
DM		 2616 next;
2617 }
2618 if ($line =~ s/^-dest (\S+)\s*//) {
6d9246e7 2619 $rule->{dest} = $1;
dba740a9
DM		 2620 next;
2621 }
51bae274 2622
dba740a9
DM		 2623 last;
2624 }
ba791b1f 2625
dba740a9 2626 die "unable to parse rule parameters: $line\n" if length($line);
51bae274 2627
a523e057 2628 $rule = verify_rule($rule, $cluster_conf, $fw_conf, $rule_env, 1);
eedcb564
WB		 2629 if ($rule->{errors}) {
2630 # The verbose flag really means we're running from the CLI and want
2631 # output on the console - in the other case we really want such errors
2632 # to go into the syslog instead.
2633 my $log = $verbose ? sub { warn @_ } : sub { syslog(err => @_) };
2634 $log->("$prefix - errors in rule parameters: $orig_line\n");
d4cda423 2635 foreach my $p (keys %{$rule->{errors}}) {
eedcb564 2636 $log->(" $p: $rule->{errors}->{$p}\n");
d4cda423
DM		 2637 }
2638 }
6d9246e7
DM		 2639
2640 return $rule;
51bae274
DM		 2641}
2642
2d404ffc 2643sub parse_vmfw_option {
85c6eaed
DM		 2644 my ($line) = @_;
2645
2646 my ($opt, $value);
2647
178a63be
DM		 2648 my $loglevels = "emerg|alert|crit|err|warning|notice|info|debug|nolog";
2649
74601077 2650 if ($line =~ m/^(enable|dhcp|ndp|radv|macfilter|ipfilter|ips):\s*(0|1)\s*$/i) {
9c6b6efd
DM		 2651 $opt = lc($1);
2652 $value = int($2);
178a63be
DM		 2653 } elsif ($line =~ m/^(log_level_in|log_level_out):\s*(($loglevels)\s*)?$/i) {
2654 $opt = lc($1);
2655 $value = $2 ? lc($3) : '';
72f63fde 2656 } elsif ($line =~ m/^(policy_(in|out)):\s*(ACCEPT|DROP|REJECT)\s*$/i) {
85c6eaed
DM		 2657 $opt = lc($1);
2658 $value = uc($3);
b47ecc88
AD		 2659 } elsif ($line =~ m/^(ips_queues):\s*((\d+)(:(\d+))?)\s*$/i) {
2660 $opt = lc($1);
2661 $value = $2;
9c6b6efd 2662 } else {
85c6eaed
DM		 2663 die "can't parse option '$line'\n"
2664 }
2665
2666 return ($opt, $value);
2667}
2668
2d404ffc
DM		 2669sub parse_hostfw_option {
2670 my ($line) = @_;
2671
2672 my ($opt, $value);
2673
2674 my $loglevels = "emerg|alert|crit|err|warning|notice|info|debug|nolog";
2675
a83abe93 2676 if ($line =~ m/^(enable|nosmurfs|tcpflags|ndp):\s*(0|1)\s*$/i) {
2d404ffc
DM		 2677 $opt = lc($1);
2678 $value = int($2);
178a63be 2679 } elsif ($line =~ m/^(log_level_in|log_level_out|tcp_flags_log_level|smurf_log_level):\s*(($loglevels)\s*)?$/i) {
2d404ffc
DM		 2680 $opt = lc($1);
2681 $value = $2 ? lc($3) : '';
28c082a1 2682 } elsif ($line =~ m/^(nf_conntrack_max|nf_conntrack_tcp_timeout_established):\s*(\d+)\s*$/i) {
490cdead
DM		 2683 $opt = lc($1);
2684 $value = int($2);
2d404ffc 2685 } else {
2d404ffc
DM		 2686 die "can't parse option '$line'\n"
2687 }
2688
2689 return ($opt, $value);
2690}
2691
c6f5cc88
DM		 2692sub parse_clusterfw_option {
2693 my ($line) = @_;
2694
2695 my ($opt, $value);
2696
72d055fc 2697 if ($line =~ m/^(enable):\s*(\d+)\s*$/i) {
c6f5cc88
DM		 2698 $opt = lc($1);
2699 $value = int($2);
72d055fc
AG		 2700 if (($value > 1) && ((time() - $value) > 60)) {
2701 $value = 0
2702 }
63324b09
DM		 2703 } elsif ($line =~ m/^(policy_(in|out)):\s*(ACCEPT|DROP|REJECT)\s*$/i) {
2704 $opt = lc($1);
2705 $value = uc($3);
c6f5cc88 2706 } else {
c6f5cc88
DM		 2707 die "can't parse option '$line'\n"
2708 }
2709
2710 return ($opt, $value);
2711}
2712
6c221576
DM		 2713sub resolve_alias {
2714 my ($clusterfw_conf, $fw_conf, $cidr) = @_;
2715
6d959e3f 2716 my $alias = lc($cidr);
04f5088f 2717 my $e = $fw_conf ? $fw_conf->{aliases}->{$alias} : undef;
6d959e3f 2718 $e = $clusterfw_conf->{aliases}->{$alias} if !$e && $clusterfw_conf;
6c221576 2719
6d959e3f
DM		 2720 die "no such alias '$cidr'\n" if !$e;;
2721
2722 return wantarray ? ($e->{cidr}, $e->{ipversion}) : $e->{cidr};
6c221576
DM		 2723}
2724
ae029a88
DM		 2725sub parse_ip_or_cidr {
2726 my ($cidr) = @_;
2727
2728 my $ipversion;
2729
2730 if ($cidr =~ m!^(?:$IPV6RE)(/(\d+))?$!) {
2731 $cidr =~ s|/128$||;
2732 $ipversion = 6;
2733 } elsif ($cidr =~ m!^(?:$IPV4RE)(/(\d+))?$!) {
2734 $cidr =~ s|/32$||;
2735 $ipversion = 4;
2736 } else {
2737 die "value does not look like a valid IP address or CIDR network\n";
2738 }
2739
2740 return wantarray ? ($cidr, $ipversion) : $cidr;
2741}
2742
e76a9f53 2743sub parse_alias {
92e1209b
AD		 2744 my ($line) = @_;
2745
81d574a7
DM		 2746 # we can add single line comments to the end of the line
2747 my $comment = decode('utf8', $1) if $line =~ s/\s*#\s*(.*?)\s*$//;
2748
92e1209b 2749 if ($line =~ m/^(\S+)\s(\S+)$/) {
81d574a7 2750 my ($name, $cidr) = ($1, $2);
ae029a88
DM		 2751 my $ipversion;
2752
2753 ($cidr, $ipversion) = parse_ip_or_cidr($cidr);
2754
81d574a7
DM		 2755 my $data = {
2756 name => $name,
2757 cidr => $cidr,
70e524eb 2758 ipversion => $ipversion,
81d574a7
DM		 2759 };
2760 $data->{comment} = $comment if $comment;
2761 return $data;
92e1209b
AD		 2762 }
2763
81d574a7 2764 return undef;
92e1209b
AD		 2765}
2766
e5cd1ee0 2767sub generic_fw_config_parser {
1210ae94 2768 my ($filename, $fh, $verbose, $cluster_conf, $empty_conf, $rule_env) = @_;
5e1267a5 2769
51bae274
DM		 2770 my $section;
2771 my $group;
2772
1210ae94 2773 my $res = $empty_conf;
6158271d 2774
51bae274
DM		 2775 while (defined(my $line = <$fh>)) {
2776 next if $line =~ m/^#/;
2777 next if $line =~ m/^\s*$/;
2778
c8c534f7
DM		 2779 chomp $line;
2780
961b4928
DM		 2781 my $linenr = $fh->input_line_number();
2782 my $prefix = "$filename (line $linenr)";
2783
1210ae94 2784 if ($empty_conf->{options} && ($line =~ m/^\[options\]$/i)) {
c6f5cc88
DM		 2785 $section = 'options';
2786 next;
2787 }
2788
1210ae94 2789 if ($empty_conf->{aliases} && ($line =~ m/^\[aliases\]$/i)) {
92e1209b
AD		 2790 $section = 'aliases';
2791 next;
2792 }
2793
1210ae94 2794 if ($empty_conf->{groups} && ($line =~ m/^\[group\s+(\S+)\]\s*(?:#\s*(.*?)\s*)?$/i)) {
c6f5cc88 2795 $section = 'groups';
92e976b3 2796 $group = lc($1);
0d22acb3 2797 my $comment = $2;
351052d1
DM		 2798 eval {
2799 die "security group name too long\n" if length($group) > $max_group_name_length;
2800 die "invalid security group name '$group'\n" if $group !~ m/^${security_group_name_pattern}$/;
2801 };
2802 if (my $err = $@) {
2803 ($section, $group, $comment) = undef;
2804 warn "$prefix: $err";
2805 next;
2806 }
2807
c85c87f9 2808 $res->{$section}->{$group} = [];
649e4d57
DM		 2809 $res->{group_comments}->{$group} = decode('utf8', $comment)
2810 if $comment;
51bae274
DM		 2811 next;
2812 }
34cdedfa 2813
1210ae94 2814 if ($empty_conf->{rules} && ($line =~ m/^\[rules\]$/i)) {
c6f5cc88
DM		 2815 $section = 'rules';
2816 next;
2817 }
cbb5d6f3 2818
1210ae94 2819 if ($empty_conf->{ipset} && ($line =~ m/^\[ipset\s+(\S+)\]\s*(?:#\s*(.*?)\s*)?$/i)) {
34cdedfa
AD		 2820 $section = 'ipset';
2821 $group = lc($1);
d72c631c 2822 my $comment = $2;
351052d1
DM		 2823 eval {
2824 die "ipset name too long\n" if length($group) > $max_ipset_name_length;
2825 die "invalid ipset name '$group'\n" if $group !~ m/^${ipset_name_pattern}$/;
2826 };
2827 if (my $err = $@) {
2828 ($section, $group, $comment) = undef;
2829 warn "$prefix: $err";
2830 next;
2831 }
2832
c85c87f9 2833 $res->{$section}->{$group} = [];
e34d0e58 2834 $res->{ipset_comments}->{$group} = decode('utf8', $comment)
649e4d57 2835 if $comment;
34cdedfa
AD		 2836 next;
2837 }
2838
c6f5cc88 2839 if (!$section) {
cbb5d6f3 2840 warn "$prefix: skip line - no section\n";
51bae274
DM		 2841 next;
2842 }
2843
c6f5cc88
DM		 2844 if ($section eq 'options') {
2845 eval {
1210ae94
DM		 2846 my ($opt, $value);
2847 if ($rule_env eq 'cluster') {
2848 ($opt, $value) = parse_clusterfw_option($line);
2849 } elsif ($rule_env eq 'host') {
2850 ($opt, $value) = parse_hostfw_option($line);
2851 } else {
2852 ($opt, $value) = parse_vmfw_option($line);
2853 }
c6f5cc88
DM		 2854 $res->{options}->{$opt} = $value;
2855 };
2856 warn "$prefix: $@" if $@;
92e1209b
AD		 2857 } elsif ($section eq 'aliases') {
2858 eval {
e76a9f53 2859 my $data = parse_alias($line);
81d574a7 2860 $res->{aliases}->{lc($data->{name})} = $data;
92e1209b
AD		 2861 };
2862 warn "$prefix: $@" if $@;
c6f5cc88
DM		 2863 } elsif ($section eq 'rules') {
2864 my $rule;
1210ae94 2865 eval { $rule = parse_fw_rule($prefix, $line, $cluster_conf, $res, $rule_env, $verbose); };
c6f5cc88
DM		 2866 if (my $err = $@) {
2867 warn "$prefix: $err";
2868 next;
2869 }
2870 push @{$res->{$section}}, $rule;
2871 } elsif ($section eq 'groups') {
34cdedfa 2872 my $rule;
1210ae94 2873 eval { $rule = parse_fw_rule($prefix, $line, $cluster_conf, undef, 'group', $verbose); };
34cdedfa
AD		 2874 if (my $err = $@) {
2875 warn "$prefix: $err";
2876 next;
2877 }
3f95d14a 2878 push @{$res->{$section}->{$group}}, $rule;
3f95d14a 2879 } elsif ($section eq 'ipset') {
9d6f90e6
DM		 2880 # we can add single line comments to the end of the rule
2881 my $comment = decode('utf8', $1) if $line =~ s/#\s*(.*?)\s*$//;
2882
30f1b100 2883 $line =~ m/^(\!)?\s*(\S+)\s*$/;
2a052ee3 2884 my $nomatch = $1;
9d6f90e6 2885 my $cidr = $2;
d46b1ef6
DM		 2886 my $errors;
2887
2888 if ($nomatch && !$feature_ipset_nomatch) {
2889 $errors->{nomatch} = "nomatch not supported by kernel";
2890 }
2a052ee3 2891
4803b296
DM		 2892 eval {
2893 if ($cidr =~ m/^${ip_alias_pattern}$/) {
2894 resolve_alias($cluster_conf, $res, $cidr); # make sure alias exists
2895 } else {
ae029a88 2896 $cidr = parse_ip_or_cidr($cidr);
92e1209b 2897 }
4803b296
DM		 2898 };
2899 if (my $err = $@) {
c8c534f7 2900 chomp $err;
d46b1ef6 2901 $errors->{cidr} = $err;
2a052ee3 2902 }
2a052ee3 2903
b14db52f
WB		 2904 if ($cidr =~ m!/0+$!) {
2905 $errors->{cidr} = "a zero prefix is not allowed in ipset entries\n";
2906 }
2907
e34d0e58 2908 my $entry = { cidr => $cidr };
9d6f90e6
DM		 2909 $entry->{nomatch} = 1 if $nomatch;
2910 $entry->{comment} = $comment if $comment;
d46b1ef6 2911 $entry->{errors} = $errors if $errors;
e34d0e58 2912
c8c534f7 2913 if ($verbose && $errors) {
9a3061c7 2914 warn "$prefix - errors in ipset '$group': $line\n";
c8c534f7
DM		 2915 foreach my $p (keys %{$errors}) {
2916 warn " $p: $errors->{$p}\n";
2917 }
2918 }
2919
9d6f90e6 2920 push @{$res->{$section}->{$group}}, $entry;
1210ae94
DM		 2921 } else {
2922 warn "$prefix: skip line - unknown section\n";
2923 next;
51bae274 2924 }
5e1267a5
DM		 2925 }
2926
2927 return $res;
2928}
2929
e5cd1ee0 2930sub parse_hostfw_config {
1210ae94
DM		 2931 my ($filename, $fh, $cluster_conf, $verbose) = @_;
2932
2933 my $empty_conf = { rules => [], options => {}};
2934
e5cd1ee0 2935 return generic_fw_config_parser($filename, $fh, $verbose, $cluster_conf, $empty_conf, 'host');
1210ae94
DM		 2936}
2937
e5cd1ee0 2938sub parse_vmfw_config {
1210ae94
DM		 2939 my ($filename, $fh, $cluster_conf, $rule_env, $verbose) = @_;
2940
2941 my $empty_conf = {
2942 rules => [],
2943 options => {},
2944 aliases => {},
2945 ipset => {} ,
2946 ipset_comments => {},
2947 };
2948
e5cd1ee0 2949 return generic_fw_config_parser($filename, $fh, $verbose, $cluster_conf, $empty_conf, $rule_env);
1210ae94
DM		 2950}
2951
e5cd1ee0 2952sub parse_clusterfw_config {
1210ae94
DM		 2953 my ($filename, $fh, $verbose) = @_;
2954
2955 my $section;
2956 my $group;
2957
2958 my $empty_conf = {
2959 rules => [],
2960 options => {},
2961 aliases => {},
2962 groups => {},
2963 group_comments => {},
2964 ipset => {} ,
2965 ipset_comments => {},
2966 };
2967
e5cd1ee0 2968 return generic_fw_config_parser($filename, $fh, $verbose, $empty_conf, $empty_conf, 'cluster');
1210ae94
DM		 2969}
2970
06320eb0
DM		 2971sub run_locked {
2972 my ($code, @param) = @_;
2973
2974 my $timeout = 10;
2975
2976 my $res = lock_file($pve_fw_lock_filename, $timeout, $code, @param);
2977
2978 die $@ if $@;
2979
2980 return $res;
2981}
2982
5e1267a5
DM		 2983sub read_local_vm_config {
2984
5e1267a5 2985 my $qemu = {};
3b4882dc 2986 my $lxc = {};
5e1267a5 2987
fdefeeab 2988 my $vmdata = { qemu => $qemu, lxc => $lxc };
5e1267a5 2989
c8301d63
DM		 2990 my $vmlist = PVE::Cluster::get_vmlist();
2991 return $vmdata if !$vmlist || !$vmlist->{ids};
2992 my $ids = $vmlist->{ids};
2993
2994 foreach my $vmid (keys %$ids) {
2995 next if !$vmid; # skip VE0
2996 my $d = $ids->{$vmid};
2997 next if !$d->{node} || $d->{node} ne $nodename;
2998 next if !$d->{type};
fdefeeab 2999 if ($d->{type} eq 'qemu') {
d9fee004 3000 if ($have_qemu_server) {
b5a16dd3 3001 my $cfspath = PVE::QemuConfig->cfs_config_path($vmid);
d9fee004
DM		 3002 if (my $conf = PVE::Cluster::cfs_read_file($cfspath)) {
3003 $qemu->{$vmid} = $conf;
3004 }
c8301d63 3005 }
3b4882dc
AG		 3006 } elsif ($d->{type} eq 'lxc') {
3007 if ($have_lxc) {
a7c85d56 3008 my $cfspath = PVE::LXC::Config->cfs_config_path($vmid);
3b4882dc
AG		 3009 if (my $conf = PVE::Cluster::cfs_read_file($cfspath)) {
3010 $lxc->{$vmid} = $conf;
3011 }
3012 }
3013 }
5e1267a5 3014 }
d9fee004 3015
5e1267a5
DM		 3016 return $vmdata;
3017};
3018
e7b35711 3019sub load_vmfw_conf {
a523e057 3020 my ($cluster_conf, $rule_env, $vmid, $dir, $verbose) = @_;
e7b35711
DM		 3021
3022 my $vmfw_conf = {};
3023
21053409 3024 $dir = $pvefw_conf_dir if !defined($dir);
8aef5177
DM		 3025
3026 my $filename = "$dir/$vmid.fw";
e7b35711 3027 if (my $fh = IO::File->new($filename, O_RDONLY)) {
e5cd1ee0 3028 $vmfw_conf = parse_vmfw_config($filename, $fh, $cluster_conf, $rule_env, $verbose);
708ba714 3029 $vmfw_conf->{vmid} = $vmid;
e7b35711
DM		 3030 }
3031
3032 return $vmfw_conf;
3033}
3034
464f933e 3035my $format_rules = sub {
dba740a9 3036 my ($rules, $allow_iface) = @_;
464f933e
DM		 3037
3038 my $raw = '';
3039
3040 foreach my $rule (@$rules) {
c14dacdf 3041 if ($rule->{type} eq 'in' || $rule->{type} eq 'out' || $rule->{type} eq 'group') {
464f933e
DM		 3042 $raw .= '|' if defined($rule->{enable}) && !$rule->{enable};
3043 $raw .= uc($rule->{type});
7ca36671
DM		 3044 if ($rule->{macro}) {
3045 $raw .= " $rule->{macro}($rule->{action})";
3046 } else {
3047 $raw .= " " . $rule->{action};
3048 }
dba740a9
DM		 3049 if ($allow_iface && $rule->{iface}) {
3050 $raw .= " -i $rule->{iface}";
3051 }
c14dacdf
DM		 3052
3053 if ($rule->{type} ne 'group') {
dba740a9
DM		 3054 $raw .= " -source $rule->{source}" if $rule->{source};
3055 $raw .= " -dest $rule->{dest}" if $rule->{dest};
3056 $raw .= " -p $rule->{proto}" if $rule->{proto};
3057 $raw .= " -dport $rule->{dport}" if $rule->{dport};
3058 $raw .= " -sport $rule->{sport}" if $rule->{sport};
c14dacdf
DM		 3059 }
3060
cbb5d6f3 3061 $raw .= " # " . encode('utf8', $rule->{comment})
464f933e
DM		 3062 if $rule->{comment} && $rule->{comment} !~ m/^\s*$/;
3063 $raw .= "\n";
3064 } else {
c14dacdf 3065 die "unknown rule type '$rule->{type}'";
464f933e
DM		 3066 }
3067 }
3068
3069 return $raw;
3070};
3071
3072my $format_options = sub {
68c90e21
DM		 3073 my ($options) = @_;
3074
3075 my $raw = '';
464f933e
DM		 3076
3077 $raw .= "[OPTIONS]\n\n";
3078 foreach my $opt (keys %$options) {
3079 $raw .= "$opt: $options->{$opt}\n";
3080 }
3081 $raw .= "\n";
68c90e21
DM		 3082
3083 return $raw;
464f933e
DM		 3084};
3085
0d5f0a0f
DM		 3086my $format_aliases = sub {
3087 my ($aliases) = @_;
3088
3089 my $raw = '';
3090
3091 $raw .= "[ALIASES]\n\n";
3092 foreach my $k (keys %$aliases) {
81d574a7
DM		 3093 my $e = $aliases->{$k};
3094 $raw .= "$e->{name} $e->{cidr}";
3095 $raw .= " # " . encode('utf8', $e->{comment})
3096 if $e->{comment} && $e->{comment} !~ m/^\s*$/;
3097 $raw .= "\n";
0d5f0a0f
DM		 3098 }
3099 $raw .= "\n";
3100
3101 return $raw;
3102};
3103
1210ae94
DM		 3104my $format_ipsets = sub {
3105 my ($fw_conf) = @_;
3106
9d6f90e6
DM		 3107 my $raw = '';
3108
1210ae94
DM		 3109 foreach my $ipset (sort keys %{$fw_conf->{ipset}}) {
3110 if (my $comment = $fw_conf->{ipset_comments}->{$ipset}) {
3111 my $utf8comment = encode('utf8', $comment);
3112 $raw .= "[IPSET $ipset] # $utf8comment\n\n";
3113 } else {
3114 $raw .= "[IPSET $ipset]\n\n";
3115 }
3116 my $options = $fw_conf->{ipset}->{$ipset};
6e299ae3 3117
1210ae94
DM		 3118 my $nethash = {};
3119 foreach my $entry (@$options) {
3120 $nethash->{$entry->{cidr}} = $entry;
3121 }
3122
3123 foreach my $cidr (sort keys %$nethash) {
3124 my $entry = $nethash->{$cidr};
3125 my $line = $entry->{nomatch} ? '!' : '';
3126 $line .= $entry->{cidr};
3127 $line .= " # " . encode('utf8', $entry->{comment})
3128 if $entry->{comment} && $entry->{comment} !~ m/^\s*$/;
3129 $raw .= "$line\n";
3130 }
3131
3132 $raw .= "\n";
9d6f90e6 3133 }
e34d0e58 3134
9d6f90e6
DM		 3135 return $raw;
3136};
3137
464f933e
DM		 3138sub save_vmfw_conf {
3139 my ($vmid, $vmfw_conf) = @_;
3140
3141 my $raw = '';
3142
3143 my $options = $vmfw_conf->{options};
89ea63c8 3144 $raw .= &$format_options($options) if $options && scalar(keys %$options);
cbb5d6f3 3145
e76a9f53 3146 my $aliases = $vmfw_conf->{aliases};
89ea63c8 3147 $raw .= &$format_aliases($aliases) if $aliases && scalar(keys %$aliases);
e76a9f53 3148
89ea63c8 3149 $raw .= &$format_ipsets($vmfw_conf) if $vmfw_conf->{ipset};
1210ae94 3150
8824b2f0 3151 my $rules = $vmfw_conf->{rules} || [];
89ea63c8 3152 if ($rules && scalar(@$rules)) {
464f933e
DM		 3153 $raw .= "[RULES]\n\n";
3154 $raw .= &$format_rules($rules, 1);
3155 $raw .= "\n";
3156 }
3157
21053409 3158 my $filename = "$pvefw_conf_dir/$vmid.fw";
c32e04e6
FG		 3159 if ($raw) {
3160 mkdir $pvefw_conf_dir;
3161 PVE::Tools::file_set_contents($filename, $raw);
3162 } else {
3163 unlink $filename;
3164 }
464f933e
DM		 3165}
3166
edee9035
AG		 3167sub remove_vmfw_conf {
3168 my ($vmid) = @_;
3169
3170 my $vmfw_conffile = "$pvefw_conf_dir/$vmid.fw";
3171
3172 unlink $vmfw_conffile;
3173}
3174
5471ff7c
AG		 3175sub clone_vmfw_conf {
3176 my ($vmid, $newid) = @_;
3177
3178 my $sourcevm_conffile = "$pvefw_conf_dir/$vmid.fw";
3179 my $clonevm_conffile = "$pvefw_conf_dir/$newid.fw";
3180
3181 if (-f $clonevm_conffile) {
3182 unlink $clonevm_conffile;
3183 }
3184 if (-f $sourcevm_conffile) {
3185 my $data = PVE::Tools::file_get_contents($sourcevm_conffile);
3186 PVE::Tools::file_set_contents($clonevm_conffile, $data);
3187 }
3188}
3189
6fc63ffd 3190sub read_vm_firewall_configs {
a523e057 3191 my ($cluster_conf, $vmdata, $dir, $verbose) = @_;
8aef5177 3192
6fc63ffd 3193 my $vmfw_configs = {};
c8301d63 3194
b6b8e6ad 3195 foreach my $vmid (keys %{$vmdata->{qemu}}) {
a523e057 3196 my $vmfw_conf = load_vmfw_conf($cluster_conf, 'vm', $vmid, $dir, $verbose);
b6b8e6ad
DM		 3197 next if !$vmfw_conf->{options}; # skip if file does not exists
3198 $vmfw_configs->{$vmid} = $vmfw_conf;
3199 }
3b4882dc
AG		 3200 foreach my $vmid (keys %{$vmdata->{lxc}}) {
3201 my $vmfw_conf = load_vmfw_conf($cluster_conf, 'ct', $vmid, $dir, $verbose);
3202 next if !$vmfw_conf->{options}; # skip if file does not exists
3203 $vmfw_configs->{$vmid} = $vmfw_conf;
3204 }
5e1267a5 3205
6fc63ffd 3206 return $vmfw_configs;
5e1267a5
DM		 3207}
3208
2d404ffc
DM		 3209sub get_option_log_level {
3210 my ($options, $k) = @_;
3211
3212 my $v = $options->{$k};
178a63be 3213 $v = $default_log_level if !defined($v);
2d404ffc
DM		 3214
3215 return undef if $v eq '' || $v eq 'nolog';
3216
3217 $v = $log_level_hash->{$v} if defined($log_level_hash->{$v});
3218
3219 return $v if ($v >= 0) && ($v <= 7);
3220
3221 warn "unknown log level ($k = '$v')\n";
3222
3223 return undef;
3224}
3225
d8f2505e 3226sub generate_std_chains {
db8a955f
DM		 3227 my ($ruleset, $options, $ipversion) = @_;
3228
3229 my $std_chains = $pve_std_chains->{$ipversion} || die "internal error";
cbb5d6f3 3230
2d404ffc 3231 my $loglevel = get_option_log_level($options, 'smurf_log_level');
044409e5
TW		 3232 my $chain = 'PVEFW-smurflog';
3233 if ( $std_chains->{$chain} ) {
3234 foreach my $r (@{$std_chains->{$chain}}) {
3235 $r->{log} = $loglevel;
3236 }
db8a955f 3237 }
2d404ffc
DM		 3238
3239 # same as shorewall logflags action.
3240 $loglevel = get_option_log_level($options, 'tcp_flags_log_level');
782c4cde 3241 $chain = 'PVEFW-logflags';
044409e5
TW		 3242 if ( $std_chains->{$chain} ) {
3243 foreach my $r (@{$std_chains->{$chain}}) {
3244 $r->{log} = $loglevel;
3245 }
3246 }
d8f2505e 3247
db8a955f 3248 foreach my $chain (keys %$std_chains) {
d8f2505e 3249 ruleset_create_chain($ruleset, $chain);
db8a955f 3250 foreach my $rule (@{$std_chains->{$chain}}) {
d8f2505e 3251 if (ref($rule)) {
88c26d5e 3252 ruleset_generate_rule($ruleset, $chain, $ipversion, $rule);
d8f2505e 3253 } else {
044409e5 3254 die "rule $rule as string - should not happen";
d8f2505e
DM		 3255 }
3256 }
3257 }
3258}
3259
34cdedfa 3260sub generate_ipset_chains {
74601077 3261 my ($ipset_ruleset, $clusterfw_conf, $fw_conf, $device_ips, $ipsets) = @_;
34cdedfa 3262
74601077 3263 foreach my $ipset (keys %{$ipsets}) {
34cdedfa 3264
74601077 3265 my $options = $ipsets->{$ipset};
34cdedfa 3266
ebf72e49
WB		 3267 if ($device_ips && $ipset =~ /^ipfilter-(net\d+)$/) {
3268 if (my $ips = $device_ips->{$1}) {
3269 $options = [@$options, @$ips];
3270 }
3271 }
3272
88c26d5e
DM		 3273 # remove duplicates
3274 my $nethash = {};
3275 foreach my $entry (@$options) {
3276 next if $entry->{errors}; # skip entries with errors
3277 eval {
3278 my ($cidr, $ver);
3279 if ($entry->{cidr} =~ m/^${ip_alias_pattern}$/) {
3280 ($cidr, $ver) = resolve_alias($clusterfw_conf, $fw_conf, $entry->{cidr});
3281 } else {
3282 ($cidr, $ver) = parse_ip_or_cidr($entry->{cidr});
3283 }
3284 #http://backreference.org/2013/03/01/ipv6-address-normalization/
3285 if ($ver == 6) {
e0a9139f
WB		 3286 # ip_compress_address takes an address only, no CIDR
3287 my ($addr, $prefix_len) = ($cidr =~ m@^([^/]*)(/.*)?$@);
3288 $cidr = lc(Net::IP::ip_compress_address($addr, 6));
3289 $cidr .= $prefix_len if defined($prefix_len);
88c26d5e
DM		 3290 $cidr =~ s|/128$||;
3291 } else {
3292 $cidr =~ s|/32$||;
3293 }
34cdedfa 3294
88c26d5e
DM		 3295 $nethash->{$ver}->{$cidr} = { cidr => $cidr, nomatch => $entry->{nomatch} };
3296 };
3297 warn $@ if $@;
3298 }
6d959e3f 3299
88c26d5e
DM		 3300 foreach my $ipversion (4, 6) {
3301 my $data = $nethash->{$ipversion};
30f1b100 3302
88c26d5e 3303 my $name = compute_ipset_chain_name($fw_conf->{vmid}, $ipset, $ipversion);
6d959e3f 3304
88c26d5e
DM		 3305 my $hashsize = scalar(@$options);
3306 if ($hashsize <= 64) {
3307 $hashsize = 64;
3308 } else {
3309 $hashsize = round_powerof2($hashsize);
3310 }
6d959e3f 3311
88c26d5e 3312 my $family = $ipversion == "6" ? "inet6" : "inet";
30f1b100 3313
88c26d5e 3314 $ipset_ruleset->{$name} = ["create $name hash:net family $family hashsize $hashsize maxelem $hashsize"];
6d959e3f 3315
88c26d5e
DM		 3316 foreach my $cidr (sort keys %$data) {
3317 my $entry = $data->{$cidr};
6d959e3f 3318
88c26d5e
DM		 3319 my $cmd = "add $name $cidr";
3320 if ($entry->{nomatch}) {
3321 if ($feature_ipset_nomatch) {
3322 push @{$ipset_ruleset->{$name}}, "$cmd nomatch";
3323 } else {
3324 warn "ignore !$cidr - nomatch not supported by kernel\n";
3325 }
6d959e3f 3326 } else {
88c26d5e 3327 push @{$ipset_ruleset->{$name}}, $cmd;
6d959e3f 3328 }
9d6f90e6 3329 }
9d6f90e6 3330 }
34cdedfa 3331 }
2a052ee3
AD		 3332}
3333
3334sub round_powerof2 {
dd7a13fd 3335 my ($int) = @_;
2a052ee3 3336
dd7a13fd
DM		 3337 $int--;
3338 $int |= $int >> $_ foreach (1,2,4,8,16);
3339 return ++$int;
34cdedfa
AD		 3340}
3341
fca39c2c 3342sub load_clusterfw_conf {
d4cda423 3343 my ($filename, $verbose) = @_;
8aef5177
DM		 3344
3345 $filename = $clusterfw_conf_filename if !defined($filename);
530c005e 3346
fca39c2c 3347 my $cluster_conf = {};
8aef5177 3348 if (my $fh = IO::File->new($filename, O_RDONLY)) {
e5cd1ee0 3349 $cluster_conf = parse_clusterfw_config($filename, $fh, $verbose);
51bae274 3350 }
5e1267a5 3351
fca39c2c 3352 return $cluster_conf;
e5d76bde
DM		 3353}
3354
fca39c2c
DM		 3355sub save_clusterfw_conf {
3356 my ($cluster_conf) = @_;
9c7e0858
DM		 3357
3358 my $raw = '';
9c7e0858 3359
c6f5cc88 3360 my $options = $cluster_conf->{options};
89ea63c8 3361 $raw .= &$format_options($options) if $options && scalar(keys %$options);
9c7e0858 3362
0d5f0a0f 3363 my $aliases = $cluster_conf->{aliases};
89ea63c8 3364 $raw .= &$format_aliases($aliases) if $aliases && scalar(keys %$aliases);
e34d0e58 3365
89ea63c8 3366 $raw .= &$format_ipsets($cluster_conf) if $cluster_conf->{ipset};
1210ae94 3367
c6f5cc88 3368 my $rules = $cluster_conf->{rules};
89ea63c8 3369 if ($rules && scalar(@$rules)) {
c6f5cc88 3370 $raw .= "[RULES]\n\n";
63c91681 3371 $raw .= &$format_rules($rules, 1);
c6f5cc88
DM		 3372 $raw .= "\n";
3373 }
3374
89ea63c8
DM		 3375 if ($cluster_conf->{groups}) {
3376 foreach my $group (sort keys %{$cluster_conf->{groups}}) {
3377 my $rules = $cluster_conf->{groups}->{$group};
3378 if (my $comment = $cluster_conf->{group_comments}->{$group}) {
3379 my $utf8comment = encode('utf8', $comment);
3380 $raw .= "[group $group] # $utf8comment\n\n";
3381 } else {
3382 $raw .= "[group $group]\n\n";
3383 }
0d22acb3 3384
89ea63c8
DM		 3385 $raw .= &$format_rules($rules, 0);
3386 $raw .= "\n";
3387 }
9c7e0858
DM		 3388 }
3389
c32e04e6
FG		 3390 if ($raw) {
3391 mkdir $pvefw_conf_dir;
3392 PVE::Tools::file_set_contents($clusterfw_conf_filename, $raw);
3393 } else {
3394 unlink $clusterfw_conf_filename;
3395 }
9c7e0858
DM		 3396}
3397
8b27beb9 3398sub load_hostfw_conf {
a523e057 3399 my ($cluster_conf, $filename, $verbose) = @_;
8aef5177
DM		 3400
3401 $filename = $hostfw_conf_filename if !defined($filename);
8b27beb9
DM		 3402
3403 my $hostfw_conf = {};
8aef5177 3404 if (my $fh = IO::File->new($filename, O_RDONLY)) {
e5cd1ee0 3405 $hostfw_conf = parse_hostfw_config($filename, $fh, $cluster_conf, $verbose);
8b27beb9
DM		 3406 }
3407 return $hostfw_conf;
3408}
3409
63c91681
DM		 3410sub save_hostfw_conf {
3411 my ($hostfw_conf) = @_;
3412
3413 my $raw = '';
3414
3415 my $options = $hostfw_conf->{options};
89ea63c8 3416 $raw .= &$format_options($options) if $options && scalar(keys %$options);
cbb5d6f3 3417
63c91681 3418 my $rules = $hostfw_conf->{rules};
89ea63c8 3419 if ($rules && scalar(@$rules)) {
63c91681
DM		 3420 $raw .= "[RULES]\n\n";
3421 $raw .= &$format_rules($rules, 1);
3422 $raw .= "\n";
3423 }
3424
c32e04e6
FG		 3425 if ($raw) {
3426 PVE::Tools::file_set_contents($hostfw_conf_filename, $raw);
3427 } else {
3428 unlink $hostfw_conf_filename;
3429 }
63c91681
DM		 3430}
3431
e5d76bde 3432sub compile {
d4cda423 3433 my ($cluster_conf, $hostfw_conf, $vmdata, $verbose) = @_;
3dfa8a7f 3434
8aef5177
DM		 3435 my $vmfw_configs;
3436
cfd7cd9c
TW		 3437 # fixme: once we read standard chains from config this needs to be put in test/standard cases below
3438 $pve_std_chains = dclone($pve_std_chains_conf);
3439
8aef5177
DM		 3440 if ($vmdata) { # test mode
3441 my $testdir = $vmdata->{testdir} || die "no test directory specified";
3442 my $filename = "$testdir/cluster.fw";
d4cda423 3443 $cluster_conf = load_clusterfw_conf($filename, $verbose);
8aef5177
DM		 3444
3445 $filename = "$testdir/host.fw";
a523e057 3446 $hostfw_conf = load_hostfw_conf($cluster_conf, $filename, $verbose);
8aef5177 3447
a523e057 3448 $vmfw_configs = read_vm_firewall_configs($cluster_conf, $vmdata, $testdir, $verbose);
8aef5177 3449 } else { # normal operation
d4cda423 3450 $cluster_conf = load_clusterfw_conf(undef, $verbose) if !$cluster_conf;
8aef5177 3451
a523e057 3452 $hostfw_conf = load_hostfw_conf($cluster_conf, undef, $verbose) if !$hostfw_conf;
8aef5177
DM		 3453
3454 $vmdata = read_local_vm_config();
a523e057 3455 $vmfw_configs = read_vm_firewall_configs($cluster_conf, $vmdata, undef, $verbose);
8aef5177 3456 }
3dfa8a7f 3457
147dd882 3458 return ({},{},{}) if !$cluster_conf->{options}->{enable};
9268573a 3459
525778d7
DM		 3460 my $localnet;
3461 if ($cluster_conf->{aliases}->{local_network}) {
3462 $localnet = $cluster_conf->{aliases}->{local_network}->{cidr};
3463 } else {
afcd29b3
DM		 3464 my $localnet_ver;
3465 ($localnet, $localnet_ver) = parse_ip_or_cidr(local_network() || '127.0.0.0/8');
3466
3467 $cluster_conf->{aliases}->{local_network} = {
3468 name => 'local_network', cidr => $localnet, ipversion => $localnet_ver };
525778d7
DM		 3469 }
3470
3471 push @{$cluster_conf->{ipset}->{management}}, { cidr => $localnet };
bfc488f6 3472
147dd882
WB		 3473 my $ruleset = compile_iptables_filter($cluster_conf, $hostfw_conf, $vmfw_configs, $vmdata, 4, $verbose);
3474 my $rulesetv6 = compile_iptables_filter($cluster_conf, $hostfw_conf, $vmfw_configs, $vmdata, 6, $verbose);
3475 my $ipset_ruleset = compile_ipsets($cluster_conf, $vmfw_configs, $vmdata);
3476
3477 return ($ruleset, $ipset_ruleset, $rulesetv6);
3478}
3479
3480sub compile_iptables_filter {
3481 my ($cluster_conf, $hostfw_conf, $vmfw_configs, $vmdata, $ipversion, $verbose) = @_;
085fd492 3482
3fa83edf
DM		 3483 my $ruleset = {};
3484
dec84fcd
DM		 3485 ruleset_create_chain($ruleset, "PVEFW-INPUT");
3486 ruleset_create_chain($ruleset, "PVEFW-OUTPUT");
5b1df9a0 3487
fadb13dd 3488 ruleset_create_chain($ruleset, "PVEFW-FORWARD");
e34d0e58 3489
8b27beb9 3490 my $hostfw_options = $hostfw_conf->{options} || {};
fadb13dd 3491
88733a74
AD		 3492 # fixme: what log level should we use here?
3493 my $loglevel = get_option_log_level($hostfw_options, "log_level_out");
3494
097820b0 3495 ruleset_chain_add_conn_filters($ruleset, "PVEFW-FORWARD", "ACCEPT");
88733a74 3496
e2943485 3497 ruleset_create_chain($ruleset, "PVEFW-FWBR-IN");
88c26d5e 3498 ruleset_chain_add_input_filters($ruleset, "PVEFW-FWBR-IN", $ipversion, $hostfw_options, $cluster_conf, $loglevel);
e2943485 3499
1e9c5070 3500 ruleset_addrule($ruleset, "PVEFW-FORWARD", "-m physdev --physdev-is-bridged --physdev-in fwln+", "-j PVEFW-FWBR-IN");
e2943485
DM		 3501
3502 ruleset_create_chain($ruleset, "PVEFW-FWBR-OUT");
1e9c5070 3503 ruleset_addrule($ruleset, "PVEFW-FORWARD", "-m physdev --physdev-is-bridged --physdev-out fwln+", "-j PVEFW-FWBR-OUT");
e2943485 3504
db8a955f 3505 generate_std_chains($ruleset, $hostfw_options, $ipversion);
fadb13dd 3506
6d2ab017 3507 my $hostfw_enable = !(defined($hostfw_options->{enable}) && ($hostfw_options->{enable} == 0));
2d404ffc 3508
35d1d6da 3509 if ($hostfw_enable) {
aedde2c2 3510 eval { enable_host_firewall($ruleset, $hostfw_conf, $cluster_conf, $ipversion); };
1a9978ed
DM		 3511 warn $@ if $@; # just to be sure - should not happen
3512 }
3fa83edf 3513
6158271d 3514 # generate firewall rules for QEMU VMs
0a0ba19e 3515 foreach my $vmid (sort keys %{$vmdata->{qemu}}) {
1a9978ed
DM		 3516 eval {
3517 my $conf = $vmdata->{qemu}->{$vmid};
3518 my $vmfw_conf = $vmfw_configs->{$vmid};
3519 return if !$vmfw_conf;
1a9978ed 3520
0a0ba19e 3521 foreach my $netid (sort keys %$conf) {
1a9978ed
DM		 3522 next if $netid !~ m/^net(\d+)$/;
3523 my $net = PVE::QemuServer::parse_net($conf->{$netid});
3524 next if !$net->{firewall};
3525 my $iface = "tap${vmid}i$1";
3526
3527 my $macaddr = $net->{macaddr};
3528 generate_tap_rules_direction($ruleset, $cluster_conf, $iface, $netid, $macaddr,
84870b1a 3529 $vmfw_conf, $vmid, 'IN', $ipversion);
1a9978ed 3530 generate_tap_rules_direction($ruleset, $cluster_conf, $iface, $netid, $macaddr,
84870b1a 3531 $vmfw_conf, $vmid, 'OUT', $ipversion);
1a9978ed
DM		 3532 }
3533 };
3534 warn $@ if $@; # just to be sure - should not happen
3fa83edf 3535 }
c8301d63 3536
3b4882dc 3537 # generate firewall rules for LXC containers
0a0ba19e 3538 foreach my $vmid (sort keys %{$vmdata->{lxc}}) {
3b4882dc
AG		 3539 eval {
3540 my $conf = $vmdata->{lxc}->{$vmid};
3541 my $vmfw_conf = $vmfw_configs->{$vmid};
3542 return if !$vmfw_conf;
3543
3b4882dc 3544 if ($vmfw_conf->{options}->{enable}) {
0a0ba19e 3545 foreach my $netid (sort keys %$conf) {
3b4882dc 3546 next if $netid !~ m/^net(\d+)$/;
a7c85d56 3547 my $net = PVE::LXC::Config->parse_lxc_network($conf->{$netid});
3b4882dc
AG		 3548 next if !$net->{firewall};
3549 my $iface = "veth${vmid}i$1";
3550 my $macaddr = $net->{hwaddr};
3551 generate_tap_rules_direction($ruleset, $cluster_conf, $iface, $netid, $macaddr,
3552 $vmfw_conf, $vmid, 'IN', $ipversion);
3553 generate_tap_rules_direction($ruleset, $cluster_conf, $iface, $netid, $macaddr,
3554 $vmfw_conf, $vmid, 'OUT', $ipversion);
3555 }
3556 }
3557 };
3558 warn $@ if $@; # just to be sure - should not happen
3559 }
3560
097820b0 3561 if(ruleset_chain_exist($ruleset, "PVEFW-IPS")){
1e9c5070 3562 ruleset_insertrule($ruleset, "PVEFW-FORWARD", "-m conntrack --ctstate RELATED,ESTABLISHED", "-j PVEFW-IPS");
097820b0
AD		 3563 }
3564
147dd882
WB		 3565 return $ruleset;
3566}
3567
ebf72e49
WB		 3568sub mac_to_linklocal {
3569 my ($macaddr) = @_;
3570 my @parts = split(/:/, $macaddr);
3571 # The standard link local address uses the fe80::/64 prefix with the
3572 # modified EUI-64 identifier derived from the MAC address by flipping the
3573 # universal/local bit and inserting FF:FE in the middle.
3574 # See RFC 4291.
3575 $parts[0] = sprintf("%02x", hex($parts[0]) ^ 0x02);
3576 my @meui64 = (@parts[0,1,2], 'ff', 'fe', @parts[3,4,5]);
3577 return "fe80::$parts[0]$parts[1]:$parts[2]FF:FE$parts[3]:$parts[4]$parts[5]";
3578}
3579
147dd882
WB		 3580sub compile_ipsets {
3581 my ($cluster_conf, $vmfw_configs, $vmdata) = @_;
3582
3583 my $localnet;
3584 if ($cluster_conf->{aliases}->{local_network}) {
3585 $localnet = $cluster_conf->{aliases}->{local_network}->{cidr};
3586 } else {
3587 my $localnet_ver;
3588 ($localnet, $localnet_ver) = parse_ip_or_cidr(local_network() || '127.0.0.0/8');
3589
3590 $cluster_conf->{aliases}->{local_network} = {
3591 name => 'local_network', cidr => $localnet, ipversion => $localnet_ver };
3592 }
3593
3594 push @{$cluster_conf->{ipset}->{management}}, { cidr => $localnet };
3595
3596
3597 my $ipset_ruleset = {};
3598
3599 # generate ipsets for QEMU VMs
3600 foreach my $vmid (keys %{$vmdata->{qemu}}) {
3601 eval {
3602 my $conf = $vmdata->{qemu}->{$vmid};
3603 my $vmfw_conf = $vmfw_configs->{$vmid};
3604 return if !$vmfw_conf;
3605
74601077
WB		 3606 # When the 'ipfilter' option is enabled every device for which there
3607 # is no 'ipfilter-netX' ipset defiend gets an implicit empty default
3608 # ipset.
3609 # The reason is that ipfilter ipsets are always filled with standard
3610 # IPv6 link-local filters.
3611 my $ipsets = $vmfw_conf->{ipset};
3612 my $implicit_sets = {};
3613
ebf72e49
WB		 3614 my $device_ips = {};
3615 foreach my $netid (keys %$conf) {
3616 next if $netid !~ m/^net(\d+)$/;
3617 my $net = PVE::QemuServer::parse_net($conf->{$netid});
3618 next if !$net->{firewall};
3619
74601077
WB		 3620 if ($vmfw_conf->{options}->{ipfilter} && !$ipsets->{"ipfilter-$netid"}) {
3621 $implicit_sets->{"ipfilter-$netid"} = [];
3622 }
3623
ebf72e49
WB		 3624 my $macaddr = $net->{macaddr};
3625 my $linklocal = mac_to_linklocal($macaddr);
3626 $device_ips->{$netid} = [
3627 { cidr => $linklocal },
3628 { cidr => 'fe80::/10', nomatch => 1 }
3629 ];
3630 }
3631
74601077
WB		 3632 generate_ipset_chains($ipset_ruleset, $cluster_conf, $vmfw_conf, $device_ips, $ipsets);
3633 generate_ipset_chains($ipset_ruleset, $cluster_conf, $vmfw_conf, $device_ips, $implicit_sets);
147dd882
WB		 3634 };
3635 warn $@ if $@; # just to be sure - should not happen
3636 }
3637
3638 # generate firewall rules for LXC containers
3639 foreach my $vmid (keys %{$vmdata->{lxc}}) {
aa229652
WB		 3640 eval {
3641 my $conf = $vmdata->{lxc}->{$vmid};
3642 my $vmfw_conf = $vmfw_configs->{$vmid};
3643 return if !$vmfw_conf;
147dd882 3644
74601077
WB		 3645 # When the 'ipfilter' option is enabled every device for which there
3646 # is no 'ipfilter-netX' ipset defiend gets an implicit empty default
3647 # ipset.
3648 # The reason is that ipfilter ipsets are always filled with standard
383fe679
WB		 3649 # IPv6 link-local filters, as well as the IP addresses configured
3650 # for the container.
74601077
WB		 3651 my $ipsets = $vmfw_conf->{ipset};
3652 my $implicit_sets = {};
3653
ebf72e49
WB		 3654 my $device_ips = {};
3655 foreach my $netid (keys %$conf) {
3656 next if $netid !~ m/^net(\d+)$/;
a7c85d56 3657 my $net = PVE::LXC::Config->parse_lxc_network($conf->{$netid});
ebf72e49
WB		 3658 next if !$net->{firewall};
3659
74601077
WB		 3660 if ($vmfw_conf->{options}->{ipfilter} && !$ipsets->{"ipfilter-$netid"}) {
3661 $implicit_sets->{"ipfilter-$netid"} = [];
3662 }
3663
ebf72e49
WB		 3664 my $macaddr = $net->{hwaddr};
3665 my $linklocal = mac_to_linklocal($macaddr);
383fe679 3666 my $set = $device_ips->{$netid} = [
ebf72e49
WB		 3667 { cidr => $linklocal },
3668 { cidr => 'fe80::/10', nomatch => 1 }
3669 ];
37ef1ce1 3670 if (defined($net->{ip}) && $net->{ip} =~ m!^($IPV4RE)(?:/\d+)?$!) {
383fe679
WB		 3671 push @$set, { cidr => $1 };
3672 }
37ef1ce1 3673 if (defined($net->{ip6}) && $net->{ip6} =~ m!^($IPV6RE)(?:/\d+)?$!) {
383fe679
WB		 3674 push @$set, { cidr => $1 };
3675 }
ebf72e49
WB		 3676 }
3677
74601077
WB		 3678 generate_ipset_chains($ipset_ruleset, $cluster_conf, $vmfw_conf, $device_ips, $ipsets);
3679 generate_ipset_chains($ipset_ruleset, $cluster_conf, $vmfw_conf, $device_ips, $implicit_sets);
aa229652
WB		 3680 };
3681 warn $@ if $@; # just to be sure - should not happen
147dd882
WB		 3682 }
3683
74601077 3684 generate_ipset_chains($ipset_ruleset, undef, $cluster_conf, undef, $cluster_conf->{ipset});
27083984 3685
147dd882 3686 return $ipset_ruleset;
3fa83edf
DM		 3687}
3688
3689sub get_ruleset_status {
4bd0a9c4 3690 my ($ruleset, $active_chains, $digest_fn, $verbose) = @_;
3fa83edf
DM		 3691
3692 my $statushash = {};
3693
3694 foreach my $chain (sort keys %$ruleset) {
4bd0a9c4 3695 my $sig = &$digest_fn($ruleset->{$chain});
9bf7d929 3696
3fa83edf
DM		 3697 $statushash->{$chain}->{sig} = $sig;
3698
3699 my $oldsig = $active_chains->{$chain};
3700 if (!defined($oldsig)) {
3701 $statushash->{$chain}->{action} = 'create';
3702 } else {
3703 if ($oldsig eq $sig) {
3704 $statushash->{$chain}->{action} = 'exists';
3705 } else {
3706 $statushash->{$chain}->{action} = 'update';
3707 }
3708 }
3709 print "$statushash->{$chain}->{action} $chain ($sig)\n" if $verbose;
3710 foreach my $cmd (@{$ruleset->{$chain}}) {
3711 print "\t$cmd\n" if $verbose;
3712 }
3713 }
3714
3715 foreach my $chain (sort keys %$active_chains) {
3716 if (!defined($ruleset->{$chain})) {
3717 my $sig = $active_chains->{$chain};
3718 $statushash->{$chain}->{action} = 'delete';
3719 $statushash->{$chain}->{sig} = $sig;
3720 print "delete $chain ($sig)\n" if $verbose;
3721 }
6158271d 3722 }
2a052ee3 3723
3fa83edf
DM		 3724 return $statushash;
3725}
3726
3fa83edf
DM		 3727sub print_sig_rule {
3728 my ($chain, $sig) = @_;
3729
09d5f68e
DM		 3730 # We just use this to store a SHA1 checksum used to detect changes
3731 return "-A $chain -m comment --comment \"PVESIG:$sig\"\n";
b6360c3f
DM		 3732}
3733
df7cb349 3734sub get_ruleset_cmdlist {
17da5c0f 3735 my ($ruleset, $verbose, $iptablescmd) = @_;
3fa83edf 3736
3fa83edf 3737 my $cmdlist = "*filter\n"; # we pass this to iptables-restore;
cbb5d6f3 3738
17da5c0f 3739 my ($active_chains, $hooks) = iptables_get_chains($iptablescmd);
4bd0a9c4 3740 my $statushash = get_ruleset_status($ruleset, $active_chains, \&iptables_chain_digest, $verbose);
3fa83edf
DM		 3741
3742 # create missing chains first
3743 foreach my $chain (sort keys %$ruleset) {
3744 my $stat = $statushash->{$chain};
3745 die "internal error" if !$stat;
3746 next if $stat->{action} ne 'create';
886aba9c 3747
3fa83edf
DM		 3748 $cmdlist .= ":$chain - [0:0]\n";
3749 }
3750
4bd0a9c4 3751 foreach my $h (qw(INPUT OUTPUT FORWARD)) {
55fad3b7
DM		 3752 my $chain = "PVEFW-$h";
3753 if ($ruleset->{$chain} && !$hooks->{$h}) {
3754 $cmdlist .= "-A $h -j $chain\n";
4bd0a9c4 3755 }
3fa83edf
DM		 3756 }
3757
3758 foreach my $chain (sort keys %$ruleset) {
3759 my $stat = $statushash->{$chain};
3760 die "internal error" if !$stat;
3761
3762 if ($stat->{action} eq 'update' || $stat->{action} eq 'create') {
3763 $cmdlist .= "-F $chain\n";
3764 foreach my $cmd (@{$ruleset->{$chain}}) {
3765 $cmdlist .= "$cmd\n";
3766 }
3767 $cmdlist .= print_sig_rule($chain, $stat->{sig});
3768 } elsif ($stat->{action} eq 'delete') {
f5d28682 3769 die "internal error"; # this should not happen
3fa83edf
DM		 3770 } elsif ($stat->{action} eq 'exists') {
3771 # do nothing
3772 } else {
3773 die "internal error - unknown status '$stat->{action}'";
3774 }
3775 }
3776
f5d28682
DM		 3777 foreach my $chain (keys %$statushash) {
3778 next if $statushash->{$chain}->{action} ne 'delete';
3779 $cmdlist .= "-F $chain\n";
3780 }
3781 foreach my $chain (keys %$statushash) {
3782 next if $statushash->{$chain}->{action} ne 'delete';
fadb13dd
DM		 3783 next if $chain eq 'PVEFW-INPUT';
3784 next if $chain eq 'PVEFW-OUTPUT';
3785 next if $chain eq 'PVEFW-FORWARD';
f5d28682
DM		 3786 $cmdlist .= "-X $chain\n";
3787 }
3788
3f95d14a 3789 my $changes = $cmdlist ne "*filter\n" ? 1 : 0;
4bd0a9c4 3790
3fa83edf
DM		 3791 $cmdlist .= "COMMIT\n";
3792
3f95d14a 3793 return wantarray ? ($cmdlist, $changes) : $cmdlist;
6b9f68a2
DM		 3794}
3795
34cdedfa 3796sub get_ipset_cmdlist {
dd7a13fd 3797 my ($ruleset, $verbose) = @_;
34cdedfa
AD		 3798
3799 my $cmdlist = "";
3800
dd7a13fd
DM		 3801 my $delete_cmdlist = "";
3802
4bd0a9c4
DM		 3803 my $active_chains = ipset_get_chains();
3804 my $statushash = get_ruleset_status($ruleset, $active_chains, \&ipset_chain_digest, $verbose);
34cdedfa 3805
e34d0e58 3806 # remove stale _swap chains
30f1b100
DM		 3807 foreach my $chain (keys %$active_chains) {
3808 if ($chain =~ m/^PVEFW-\S+_swap$/) {
3809 $cmdlist .= "destroy $chain\n";
3810 }
3811 }
3812
c69cf614 3813 foreach my $chain (keys %$ruleset) {
c69cf614
DM		 3814 my $stat = $statushash->{$chain};
3815 die "internal error" if !$stat;
3816
3817 if ($stat->{action} eq 'create') {
3818 foreach my $cmd (@{$ruleset->{$chain}}) {
3819 $cmdlist .= "$cmd\n";
3820 }
3821 }
3822 }
3823
3824 foreach my $chain (keys %$ruleset) {
6d959e3f
DM		 3825 my $stat = $statushash->{$chain};
3826 die "internal error" if !$stat;
34cdedfa 3827
dd7a13fd
DM		 3828 if ($stat->{action} eq 'update') {
3829 my $chain_swap = $chain."_swap";
cbb5d6f3 3830
dd7a13fd
DM		 3831 foreach my $cmd (@{$ruleset->{$chain}}) {
3832 $cmd =~ s/$chain/$chain_swap/;
3833 $cmdlist .= "$cmd\n";
34cdedfa 3834 }
dd7a13fd
DM		 3835 $cmdlist .= "swap $chain_swap $chain\n";
3836 $cmdlist .= "flush $chain_swap\n";
3837 $cmdlist .= "destroy $chain_swap\n";
2a052ee3 3838 }
dd7a13fd 3839 }
3f95d14a 3840
88c26d5e 3841 # the remove unused chains
c69cf614 3842 foreach my $chain (keys %$statushash) {
dd7a13fd 3843 next if $statushash->{$chain}->{action} ne 'delete';
2a052ee3 3844
dd7a13fd
DM		 3845 $delete_cmdlist .= "flush $chain\n";
3846 $delete_cmdlist .= "destroy $chain\n";
34cdedfa
AD		 3847 }
3848
dd7a13fd 3849 my $changes = ($cmdlist || $delete_cmdlist) ? 1 : 0;
cbb5d6f3 3850
dd7a13fd 3851 return ($cmdlist, $delete_cmdlist, $changes);
34cdedfa
AD		 3852}
3853
6b9f68a2 3854sub apply_ruleset {
17da5c0f 3855 my ($ruleset, $hostfw_conf, $ipset_ruleset, $rulesetv6, $verbose) = @_;
6b9f68a2
DM		 3856
3857 enable_bridge_firewall();
3858
cbb5d6f3 3859 my ($ipset_create_cmdlist, $ipset_delete_cmdlist, $ipset_changes) =
9a462317 3860 get_ipset_cmdlist($ipset_ruleset, $verbose);
6b9f68a2 3861
81a0bf43 3862 my ($cmdlist, $changes) = get_ruleset_cmdlist($ruleset, $verbose);
17da5c0f 3863 my ($cmdlistv6, $changesv6) = get_ruleset_cmdlist($rulesetv6, $verbose, "ip6tables");
2a052ee3 3864
81a0bf43
DM		 3865 if ($verbose) {
3866 if ($ipset_changes) {
3867 print "ipset changes:\n";
3868 print $ipset_create_cmdlist if $ipset_create_cmdlist;
3869 print $ipset_delete_cmdlist if $ipset_delete_cmdlist;
3870 }
3f95d14a 3871
81a0bf43
DM		 3872 if ($changes) {
3873 print "iptables changes:\n";
3874 print $cmdlist;
3875 }
17da5c0f
AD		 3876
3877 if ($changesv6) {
3878 print "ip6tables changes:\n";
3879 print $cmdlistv6;
3880 }
81a0bf43 3881 }
3fa83edf 3882
259db1e6
DM		 3883 my $tmpfile = "$pve_fw_status_dir/ipsetcmdlist1";
3884 PVE::Tools::file_set_contents($tmpfile, $ipset_create_cmdlist || '');
3885
2a052ee3 3886 ipset_restore_cmdlist($ipset_create_cmdlist);
34cdedfa 3887
259db1e6
DM		 3888 $tmpfile = "$pve_fw_status_dir/ip4cmdlist";
3889 PVE::Tools::file_set_contents($tmpfile, $cmdlist || '');
3890
3fa83edf 3891 iptables_restore_cmdlist($cmdlist);
259db1e6
DM		 3892
3893 $tmpfile = "$pve_fw_status_dir/ip6cmdlist";
3894 PVE::Tools::file_set_contents($tmpfile, $cmdlistv6 || '');
3895
17da5c0f 3896 ip6tables_restore_cmdlist($cmdlistv6);
3fa83edf 3897
259db1e6
DM		 3898 $tmpfile = "$pve_fw_status_dir/ipsetcmdlist2";
3899 PVE::Tools::file_set_contents($tmpfile, $ipset_delete_cmdlist || '');
3900
dd7a13fd 3901 ipset_restore_cmdlist($ipset_delete_cmdlist) if $ipset_delete_cmdlist;
2a052ee3 3902
6158271d 3903 # test: re-read status and check if everything is up to date
4bd0a9c4 3904 my $active_chains = iptables_get_chains();
81a0bf43 3905 my $statushash = get_ruleset_status($ruleset, $active_chains, \&iptables_chain_digest, 0);
3fa83edf
DM		 3906
3907 my $errors;
3908 foreach my $chain (sort keys %$ruleset) {
3909 my $stat = $statushash->{$chain};
3910 if ($stat->{action} ne 'exists') {
3911 warn "unable to update chain '$chain'\n";
3912 $errors = 1;
3913 }
3914 }
b6360c3f 3915
17da5c0f
AD		 3916 my $active_chainsv6 = iptables_get_chains("ip6tables");
3917 my $statushashv6 = get_ruleset_status($rulesetv6, $active_chainsv6, \&iptables_chain_digest, 0);
3918
3919 foreach my $chain (sort keys %$rulesetv6) {
3920 my $stat = $statushashv6->{$chain};
3921 if ($stat->{action} ne 'exists') {
3922 warn "unable to update chain '$chain'\n";
3923 $errors = 1;
3924 }
3925 }
3926
3fa83edf 3927 die "unable to apply firewall changes\n" if $errors;
46a2ac1f
AD		 3928
3929 update_nf_conntrack_max($hostfw_conf);
3930
3931 update_nf_conntrack_tcp_timeout_established($hostfw_conf);
3932
b6360c3f
DM		 3933}
3934
490cdead
DM		 3935sub update_nf_conntrack_max {
3936 my ($hostfw_conf) = @_;
3937
3938 my $max = 65536; # reasonable default
3939
3940 my $options = $hostfw_conf->{options} || {};
3941
3942 if (defined($options->{nf_conntrack_max}) && ($options->{nf_conntrack_max} > $max)) {
3943 $max = $options->{nf_conntrack_max};
3944 $max = int(($max+ 8191)/8192)*8192; # round to multiples of 8192
3945 }
3946
3947 my $filename_nf_conntrack_max = "/proc/sys/net/nf_conntrack_max";
3948 my $filename_hashsize = "/sys/module/nf_conntrack/parameters/hashsize";
3949
3950 my $current = int(PVE::Tools::file_read_firstline($filename_nf_conntrack_max) || $max);
3951
3952 if ($current != $max) {
3953 my $hashsize = int($max/4);
3954 PVE::ProcFSTools::write_proc_entry($filename_hashsize, $hashsize);
3955 PVE::ProcFSTools::write_proc_entry($filename_nf_conntrack_max, $max);
3956 }
3957}
3958
28c082a1
AD		 3959sub update_nf_conntrack_tcp_timeout_established {
3960 my ($hostfw_conf) = @_;
3961
3962 my $options = $hostfw_conf->{options} || {};
3963
3964 my $value = defined($options->{nf_conntrack_tcp_timeout_established}) ? $options->{nf_conntrack_tcp_timeout_established} : 432000;
3965
3966 PVE::ProcFSTools::write_proc_entry("/proc/sys/net/netfilter/nf_conntrack_tcp_timeout_established", $value);
3967}
3968
c4a2e5ae
DM		 3969sub remove_pvefw_chains {
3970
7b7b2654
AD		 3971 PVE::Firewall::remove_pvefw_chains_iptables("iptables");
3972 PVE::Firewall::remove_pvefw_chains_iptables("ip6tables");
3973 PVE::Firewall::remove_pvefw_chains_ipset();
3974
3975}
3976
3977sub remove_pvefw_chains_iptables {
3978 my ($iptablescmd) = @_;
3979
3980 my ($chash, $hooks) = iptables_get_chains($iptablescmd);
c4a2e5ae
DM		 3981 my $cmdlist = "*filter\n";
3982
3983 foreach my $h (qw(INPUT OUTPUT FORWARD)) {
3984 if ($hooks->{$h}) {
3985 $cmdlist .= "-D $h -j PVEFW-$h\n";
3986 }
3987 }
cbb5d6f3 3988
c4a2e5ae
DM		 3989 foreach my $chain (keys %$chash) {
3990 $cmdlist .= "-F $chain\n";
3991 }
3992
3993 foreach my $chain (keys %$chash) {
3994 $cmdlist .= "-X $chain\n";
3995 }
3996 $cmdlist .= "COMMIT\n";
3997
7b7b2654
AD		 3998 if($iptablescmd eq "ip6tables") {
3999 ip6tables_restore_cmdlist($cmdlist);
4000 } else {
4001 iptables_restore_cmdlist($cmdlist);
4002 }
4003}
4004
4005sub remove_pvefw_chains_ipset {
55fad3b7
DM		 4006
4007 my $ipset_chains = ipset_get_chains();
4008
7b7b2654 4009 my $cmdlist = "";
55fad3b7
DM		 4010
4011 foreach my $chain (keys %$ipset_chains) {
88c26d5e
DM		 4012 $cmdlist .= "flush $chain\n";
4013 $cmdlist .= "destroy $chain\n";
55fad3b7
DM		 4014 }
4015
7b7b2654 4016 ipset_restore_cmdlist($cmdlist) if $cmdlist;
c4a2e5ae
DM		 4017}
4018
8b453a09
DM		 4019sub init {
4020 my $cluster_conf = load_clusterfw_conf();
4021 my $cluster_options = $cluster_conf->{options};
4022 my $enable = $cluster_options->{enable};
4023
4024 return if !$enable;
4025
4026 # load required modules here
4027}
4028
6b9f68a2 4029sub update {
6b9f68a2 4030 my $code = sub {
3dfa8a7f
DM		 4031
4032 my $cluster_conf = load_clusterfw_conf();
4033 my $cluster_options = $cluster_conf->{options};
4034
55fad3b7 4035 if (!$cluster_options->{enable}) {
b22130d3 4036 PVE::Firewall::remove_pvefw_chains();
3dfa8a7f
DM		 4037 return;
4038 }
4039
50f9a28d 4040 my $hostfw_conf = load_hostfw_conf($cluster_conf);
3dfa8a7f 4041
638c755a 4042 my ($ruleset, $ipset_ruleset, $rulesetv6) = compile($cluster_conf, $hostfw_conf);
490cdead 4043
17da5c0f 4044 apply_ruleset($ruleset, $hostfw_conf, $ipset_ruleset, $rulesetv6);
6b9f68a2
DM		 4045 };
4046
4047 run_locked($code);
4048}
4049
b6360c3f 40501;
Firewall test scripts