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1 | package PVE::Cluster; | |
2 | ||
3 | use strict; | |
4 | use warnings; | |
5 | use POSIX qw(EEXIST ENOENT); | |
6 | use File::stat qw(); | |
7 | use Socket; | |
8 | use Storable qw(dclone); | |
9 | use IO::File; | |
10 | use MIME::Base64; | |
11 | use Digest::SHA; | |
12 | use Digest::HMAC_SHA1; | |
13 | use Net::SSLeay; | |
14 | use PVE::Tools; | |
15 | use PVE::INotify; | |
16 | use PVE::IPCC; | |
17 | use PVE::SafeSyslog; | |
18 | use PVE::JSONSchema; | |
19 | use PVE::Network; | |
20 | use JSON; | |
21 | use RRDs; | |
22 | use Encode; | |
23 | use UUID; | |
24 | use base 'Exporter'; | |
25 | ||
26 | our @EXPORT_OK = qw( | |
27 | cfs_read_file | |
28 | cfs_write_file | |
29 | cfs_register_file | |
30 | cfs_lock_file); | |
31 | ||
32 | use Data::Dumper; # fixme: remove | |
33 | ||
34 | # x509 certificate utils | |
35 | ||
36 | my $basedir = "/etc/pve"; | |
37 | my $authdir = "$basedir/priv"; | |
38 | my $lockdir = "/etc/pve/priv/lock"; | |
39 | ||
40 | my $authprivkeyfn = "$authdir/authkey.key"; | |
41 | my $authpubkeyfn = "$basedir/authkey.pub"; | |
42 | my $pveca_key_fn = "$authdir/pve-root-ca.key"; | |
43 | my $pveca_srl_fn = "$authdir/pve-root-ca.srl"; | |
44 | my $pveca_cert_fn = "$basedir/pve-root-ca.pem"; | |
45 | # this is just a secret accessable by the web browser | |
46 | # and is used for CSRF prevention | |
47 | my $pvewww_key_fn = "$basedir/pve-www.key"; | |
48 | ||
49 | # ssh related files | |
50 | my $ssh_rsa_id_priv = "/root/.ssh/id_rsa"; | |
51 | my $ssh_rsa_id = "/root/.ssh/id_rsa.pub"; | |
52 | my $ssh_host_rsa_id = "/etc/ssh/ssh_host_rsa_key.pub"; | |
53 | my $sshglobalknownhosts = "/etc/ssh/ssh_known_hosts"; | |
54 | my $sshknownhosts = "/etc/pve/priv/known_hosts"; | |
55 | my $sshauthkeys = "/etc/pve/priv/authorized_keys"; | |
56 | my $sshd_config_fn = "/etc/ssh/sshd_config"; | |
57 | my $rootsshauthkeys = "/root/.ssh/authorized_keys"; | |
58 | my $rootsshauthkeysbackup = "${rootsshauthkeys}.org"; | |
59 | my $rootsshconfig = "/root/.ssh/config"; | |
60 | ||
61 | my $observed = { | |
62 | 'vzdump.cron' => 1, | |
63 | 'storage.cfg' => 1, | |
64 | 'datacenter.cfg' => 1, | |
65 | 'replication.cfg' => 1, | |
66 | 'corosync.conf' => 1, | |
67 | 'corosync.conf.new' => 1, | |
68 | 'user.cfg' => 1, | |
69 | 'domains.cfg' => 1, | |
70 | 'priv/shadow.cfg' => 1, | |
71 | '/qemu-server/' => 1, | |
72 | '/openvz/' => 1, | |
73 | '/lxc/' => 1, | |
74 | 'ha/crm_commands' => 1, | |
75 | 'ha/manager_status' => 1, | |
76 | 'ha/resources.cfg' => 1, | |
77 | 'ha/groups.cfg' => 1, | |
78 | 'ha/fence.cfg' => 1, | |
79 | 'status.cfg' => 1, | |
80 | }; | |
81 | ||
82 | # only write output if something fails | |
83 | sub run_silent_cmd { | |
84 | my ($cmd) = @_; | |
85 | ||
86 | my $outbuf = ''; | |
87 | ||
88 | my $record_output = sub { | |
89 | $outbuf .= shift; | |
90 | $outbuf .= "\n"; | |
91 | }; | |
92 | ||
93 | eval { | |
94 | PVE::Tools::run_command($cmd, outfunc => $record_output, | |
95 | errfunc => $record_output); | |
96 | }; | |
97 | ||
98 | my $err = $@; | |
99 | ||
100 | if ($err) { | |
101 | print STDERR $outbuf; | |
102 | die $err; | |
103 | } | |
104 | } | |
105 | ||
106 | sub check_cfs_quorum { | |
107 | my ($noerr) = @_; | |
108 | ||
109 | # note: -w filename always return 1 for root, so wee need | |
110 | # to use File::lstat here | |
111 | my $st = File::stat::lstat("$basedir/local"); | |
112 | my $quorate = ($st && (($st->mode & 0200) != 0)); | |
113 | ||
114 | die "cluster not ready - no quorum?\n" if !$quorate && !$noerr; | |
115 | ||
116 | return $quorate; | |
117 | } | |
118 | ||
119 | sub check_cfs_is_mounted { | |
120 | my ($noerr) = @_; | |
121 | ||
122 | my $res = -l "$basedir/local"; | |
123 | ||
124 | die "pve configuration filesystem not mounted\n" | |
125 | if !$res && !$noerr; | |
126 | ||
127 | return $res; | |
128 | } | |
129 | ||
130 | sub gen_local_dirs { | |
131 | my ($nodename) = @_; | |
132 | ||
133 | check_cfs_is_mounted(); | |
134 | ||
135 | my @required_dirs = ( | |
136 | "$basedir/priv", | |
137 | "$basedir/nodes", | |
138 | "$basedir/nodes/$nodename", | |
139 | "$basedir/nodes/$nodename/lxc", | |
140 | "$basedir/nodes/$nodename/qemu-server", | |
141 | "$basedir/nodes/$nodename/openvz", | |
142 | "$basedir/nodes/$nodename/priv"); | |
143 | ||
144 | foreach my $dir (@required_dirs) { | |
145 | if (! -d $dir) { | |
146 | mkdir($dir) || $! == EEXIST || die "unable to create directory '$dir' - $!\n"; | |
147 | } | |
148 | } | |
149 | } | |
150 | ||
151 | sub gen_auth_key { | |
152 | ||
153 | return if -f "$authprivkeyfn"; | |
154 | ||
155 | check_cfs_is_mounted(); | |
156 | ||
157 | mkdir $authdir || $! == EEXIST || die "unable to create dir '$authdir' - $!\n"; | |
158 | ||
159 | run_silent_cmd(['openssl', 'genrsa', '-out', $authprivkeyfn, '2048']); | |
160 | ||
161 | run_silent_cmd(['openssl', 'rsa', '-in', $authprivkeyfn, '-pubout', '-out', $authpubkeyfn]); | |
162 | } | |
163 | ||
164 | sub gen_pveca_key { | |
165 | ||
166 | return if -f $pveca_key_fn; | |
167 | ||
168 | eval { | |
169 | run_silent_cmd(['openssl', 'genrsa', '-out', $pveca_key_fn, '4096']); | |
170 | }; | |
171 | ||
172 | die "unable to generate pve ca key:\n$@" if $@; | |
173 | } | |
174 | ||
175 | sub gen_pveca_cert { | |
176 | ||
177 | if (-f $pveca_key_fn && -f $pveca_cert_fn) { | |
178 | return 0; | |
179 | } | |
180 | ||
181 | gen_pveca_key(); | |
182 | ||
183 | # we try to generate an unique 'subject' to avoid browser problems | |
184 | # (reused serial numbers, ..) | |
185 | my $uuid; | |
186 | UUID::generate($uuid); | |
187 | my $uuid_str; | |
188 | UUID::unparse($uuid, $uuid_str); | |
189 | ||
190 | eval { | |
191 | # wrap openssl with faketime to prevent bug #904 | |
192 | run_silent_cmd(['faketime', 'yesterday', 'openssl', 'req', '-batch', | |
193 | '-days', '3650', '-new', '-x509', '-nodes', '-key', | |
194 | $pveca_key_fn, '-out', $pveca_cert_fn, '-subj', | |
195 | "/CN=Proxmox Virtual Environment/OU=$uuid_str/O=PVE Cluster Manager CA/"]); | |
196 | }; | |
197 | ||
198 | die "generating pve root certificate failed:\n$@" if $@; | |
199 | ||
200 | return 1; | |
201 | } | |
202 | ||
203 | sub gen_pve_ssl_key { | |
204 | my ($nodename) = @_; | |
205 | ||
206 | die "no node name specified" if !$nodename; | |
207 | ||
208 | my $pvessl_key_fn = "$basedir/nodes/$nodename/pve-ssl.key"; | |
209 | ||
210 | return if -f $pvessl_key_fn; | |
211 | ||
212 | eval { | |
213 | run_silent_cmd(['openssl', 'genrsa', '-out', $pvessl_key_fn, '2048']); | |
214 | }; | |
215 | ||
216 | die "unable to generate pve ssl key for node '$nodename':\n$@" if $@; | |
217 | } | |
218 | ||
219 | sub gen_pve_www_key { | |
220 | ||
221 | return if -f $pvewww_key_fn; | |
222 | ||
223 | eval { | |
224 | run_silent_cmd(['openssl', 'genrsa', '-out', $pvewww_key_fn, '2048']); | |
225 | }; | |
226 | ||
227 | die "unable to generate pve www key:\n$@" if $@; | |
228 | } | |
229 | ||
230 | sub update_serial { | |
231 | my ($serial) = @_; | |
232 | ||
233 | PVE::Tools::file_set_contents($pveca_srl_fn, $serial); | |
234 | } | |
235 | ||
236 | sub gen_pve_ssl_cert { | |
237 | my ($force, $nodename, $ip) = @_; | |
238 | ||
239 | die "no node name specified" if !$nodename; | |
240 | die "no IP specified" if !$ip; | |
241 | ||
242 | my $pvessl_cert_fn = "$basedir/nodes/$nodename/pve-ssl.pem"; | |
243 | ||
244 | return if !$force && -f $pvessl_cert_fn; | |
245 | ||
246 | my $names = "IP:127.0.0.1,IP:::1,DNS:localhost"; | |
247 | ||
248 | my $rc = PVE::INotify::read_file('resolvconf'); | |
249 | ||
250 | $names .= ",IP:$ip"; | |
251 | ||
252 | my $fqdn = $nodename; | |
253 | ||
254 | $names .= ",DNS:$nodename"; | |
255 | ||
256 | if ($rc && $rc->{search}) { | |
257 | $fqdn = $nodename . "." . $rc->{search}; | |
258 | $names .= ",DNS:$fqdn"; | |
259 | } | |
260 | ||
261 | my $sslconf = <<__EOD; | |
262 | RANDFILE = /root/.rnd | |
263 | extensions = v3_req | |
264 | ||
265 | [ req ] | |
266 | default_bits = 2048 | |
267 | distinguished_name = req_distinguished_name | |
268 | req_extensions = v3_req | |
269 | prompt = no | |
270 | string_mask = nombstr | |
271 | ||
272 | [ req_distinguished_name ] | |
273 | organizationalUnitName = PVE Cluster Node | |
274 | organizationName = Proxmox Virtual Environment | |
275 | commonName = $fqdn | |
276 | ||
277 | [ v3_req ] | |
278 | basicConstraints = CA:FALSE | |
279 | extendedKeyUsage = serverAuth | |
280 | subjectAltName = $names | |
281 | __EOD | |
282 | ||
283 | my $cfgfn = "/tmp/pvesslconf-$$.tmp"; | |
284 | my $fh = IO::File->new ($cfgfn, "w"); | |
285 | print $fh $sslconf; | |
286 | close ($fh); | |
287 | ||
288 | my $reqfn = "/tmp/pvecertreq-$$.tmp"; | |
289 | unlink $reqfn; | |
290 | ||
291 | my $pvessl_key_fn = "$basedir/nodes/$nodename/pve-ssl.key"; | |
292 | eval { | |
293 | run_silent_cmd(['openssl', 'req', '-batch', '-new', '-config', $cfgfn, | |
294 | '-key', $pvessl_key_fn, '-out', $reqfn]); | |
295 | }; | |
296 | ||
297 | if (my $err = $@) { | |
298 | unlink $reqfn; | |
299 | unlink $cfgfn; | |
300 | die "unable to generate pve certificate request:\n$err"; | |
301 | } | |
302 | ||
303 | update_serial("0000000000000000") if ! -f $pveca_srl_fn; | |
304 | ||
305 | eval { | |
306 | # wrap openssl with faketime to prevent bug #904 | |
307 | run_silent_cmd(['faketime', 'yesterday', 'openssl', 'x509', '-req', | |
308 | '-in', $reqfn, '-days', '3650', '-out', $pvessl_cert_fn, | |
309 | '-CAkey', $pveca_key_fn, '-CA', $pveca_cert_fn, | |
310 | '-CAserial', $pveca_srl_fn, '-extfile', $cfgfn]); | |
311 | }; | |
312 | ||
313 | if (my $err = $@) { | |
314 | unlink $reqfn; | |
315 | unlink $cfgfn; | |
316 | die "unable to generate pve ssl certificate:\n$err"; | |
317 | } | |
318 | ||
319 | unlink $cfgfn; | |
320 | unlink $reqfn; | |
321 | } | |
322 | ||
323 | sub gen_pve_node_files { | |
324 | my ($nodename, $ip, $opt_force) = @_; | |
325 | ||
326 | gen_local_dirs($nodename); | |
327 | ||
328 | gen_auth_key(); | |
329 | ||
330 | # make sure we have a (cluster wide) secret | |
331 | # for CSRFR prevention | |
332 | gen_pve_www_key(); | |
333 | ||
334 | # make sure we have a (per node) private key | |
335 | gen_pve_ssl_key($nodename); | |
336 | ||
337 | # make sure we have a CA | |
338 | my $force = gen_pveca_cert(); | |
339 | ||
340 | $force = 1 if $opt_force; | |
341 | ||
342 | gen_pve_ssl_cert($force, $nodename, $ip); | |
343 | } | |
344 | ||
345 | my $vzdump_cron_dummy = <<__EOD; | |
346 | # cluster wide vzdump cron schedule | |
347 | # Atomatically generated file - do not edit | |
348 | ||
349 | PATH="/usr/sbin:/usr/bin:/sbin:/bin" | |
350 | ||
351 | __EOD | |
352 | ||
353 | sub gen_pve_vzdump_symlink { | |
354 | ||
355 | my $filename = "/etc/pve/vzdump.cron"; | |
356 | ||
357 | my $link_fn = "/etc/cron.d/vzdump"; | |
358 | ||
359 | if ((-f $filename) && (! -l $link_fn)) { | |
360 | rename($link_fn, "/root/etc_cron_vzdump.org"); # make backup if file exists | |
361 | symlink($filename, $link_fn); | |
362 | } | |
363 | } | |
364 | ||
365 | sub gen_pve_vzdump_files { | |
366 | ||
367 | my $filename = "/etc/pve/vzdump.cron"; | |
368 | ||
369 | PVE::Tools::file_set_contents($filename, $vzdump_cron_dummy) | |
370 | if ! -f $filename; | |
371 | ||
372 | gen_pve_vzdump_symlink(); | |
373 | }; | |
374 | ||
375 | my $versions = {}; | |
376 | my $vmlist = {}; | |
377 | my $clinfo = {}; | |
378 | ||
379 | my $ipcc_send_rec = sub { | |
380 | my ($msgid, $data) = @_; | |
381 | ||
382 | my $res = PVE::IPCC::ipcc_send_rec($msgid, $data); | |
383 | ||
384 | die "ipcc_send_rec[$msgid] failed: $!\n" if !defined($res) && ($! != 0); | |
385 | ||
386 | return $res; | |
387 | }; | |
388 | ||
389 | my $ipcc_send_rec_json = sub { | |
390 | my ($msgid, $data) = @_; | |
391 | ||
392 | my $res = PVE::IPCC::ipcc_send_rec($msgid, $data); | |
393 | ||
394 | die "ipcc_send_rec[$msgid] failed: $!\n" if !defined($res) && ($! != 0); | |
395 | ||
396 | return decode_json($res); | |
397 | }; | |
398 | ||
399 | my $ipcc_get_config = sub { | |
400 | my ($path) = @_; | |
401 | ||
402 | my $bindata = pack "Z*", $path; | |
403 | my $res = PVE::IPCC::ipcc_send_rec(6, $bindata); | |
404 | if (!defined($res)) { | |
405 | if ($! != 0) { | |
406 | return undef if $! == ENOENT; | |
407 | die "$!\n"; | |
408 | } | |
409 | return ''; | |
410 | } | |
411 | ||
412 | return $res; | |
413 | }; | |
414 | ||
415 | my $ipcc_get_status = sub { | |
416 | my ($name, $nodename) = @_; | |
417 | ||
418 | my $bindata = pack "Z[256]Z[256]", $name, ($nodename || ""); | |
419 | return PVE::IPCC::ipcc_send_rec(5, $bindata); | |
420 | }; | |
421 | ||
422 | my $ipcc_update_status = sub { | |
423 | my ($name, $data) = @_; | |
424 | ||
425 | my $raw = ref($data) ? encode_json($data) : $data; | |
426 | # update status | |
427 | my $bindata = pack "Z[256]Z*", $name, $raw; | |
428 | ||
429 | return &$ipcc_send_rec(4, $bindata); | |
430 | }; | |
431 | ||
432 | my $ipcc_log = sub { | |
433 | my ($priority, $ident, $tag, $msg) = @_; | |
434 | ||
435 | my $bindata = pack "CCCZ*Z*Z*", $priority, bytes::length($ident) + 1, | |
436 | bytes::length($tag) + 1, $ident, $tag, $msg; | |
437 | ||
438 | return &$ipcc_send_rec(7, $bindata); | |
439 | }; | |
440 | ||
441 | my $ipcc_get_cluster_log = sub { | |
442 | my ($user, $max) = @_; | |
443 | ||
444 | $max = 0 if !defined($max); | |
445 | ||
446 | my $bindata = pack "VVVVZ*", $max, 0, 0, 0, ($user || ""); | |
447 | return &$ipcc_send_rec(8, $bindata); | |
448 | }; | |
449 | ||
450 | my $ccache = {}; | |
451 | ||
452 | sub cfs_update { | |
453 | my ($fail) = @_; | |
454 | eval { | |
455 | my $res = &$ipcc_send_rec_json(1); | |
456 | #warn "GOT1: " . Dumper($res); | |
457 | die "no starttime\n" if !$res->{starttime}; | |
458 | ||
459 | if (!$res->{starttime} || !$versions->{starttime} || | |
460 | $res->{starttime} != $versions->{starttime}) { | |
461 | #print "detected changed starttime\n"; | |
462 | $vmlist = {}; | |
463 | $clinfo = {}; | |
464 | $ccache = {}; | |
465 | } | |
466 | ||
467 | $versions = $res; | |
468 | }; | |
469 | my $err = $@; | |
470 | if ($err) { | |
471 | $versions = {}; | |
472 | $vmlist = {}; | |
473 | $clinfo = {}; | |
474 | $ccache = {}; | |
475 | die $err if $fail; | |
476 | warn $err; | |
477 | } | |
478 | ||
479 | eval { | |
480 | if (!$clinfo->{version} || $clinfo->{version} != $versions->{clinfo}) { | |
481 | #warn "detected new clinfo\n"; | |
482 | $clinfo = &$ipcc_send_rec_json(2); | |
483 | } | |
484 | }; | |
485 | $err = $@; | |
486 | if ($err) { | |
487 | $clinfo = {}; | |
488 | die $err if $fail; | |
489 | warn $err; | |
490 | } | |
491 | ||
492 | eval { | |
493 | if (!$vmlist->{version} || $vmlist->{version} != $versions->{vmlist}) { | |
494 | #warn "detected new vmlist1\n"; | |
495 | $vmlist = &$ipcc_send_rec_json(3); | |
496 | } | |
497 | }; | |
498 | $err = $@; | |
499 | if ($err) { | |
500 | $vmlist = {}; | |
501 | die $err if $fail; | |
502 | warn $err; | |
503 | } | |
504 | } | |
505 | ||
506 | sub get_vmlist { | |
507 | return $vmlist; | |
508 | } | |
509 | ||
510 | sub get_clinfo { | |
511 | return $clinfo; | |
512 | } | |
513 | ||
514 | sub get_members { | |
515 | return $clinfo->{nodelist}; | |
516 | } | |
517 | ||
518 | sub get_nodelist { | |
519 | ||
520 | my $nodelist = $clinfo->{nodelist}; | |
521 | ||
522 | my $result = []; | |
523 | ||
524 | my $nodename = PVE::INotify::nodename(); | |
525 | ||
526 | if (!$nodelist || !$nodelist->{$nodename}) { | |
527 | return [ $nodename ]; | |
528 | } | |
529 | ||
530 | return [ keys %$nodelist ]; | |
531 | } | |
532 | ||
533 | # $data must be a chronological descending ordered array of tasks | |
534 | sub broadcast_tasklist { | |
535 | my ($data) = @_; | |
536 | ||
537 | # the serialized list may not get bigger than 32kb (CFS_MAX_STATUS_SIZE | |
538 | # from pmxcfs) - drop older items until we satisfy this constraint | |
539 | my $size = length(encode_json($data)); | |
540 | while ($size >= (32 * 1024)) { | |
541 | pop @$data; | |
542 | $size = length(encode_json($data)); | |
543 | } | |
544 | ||
545 | eval { | |
546 | &$ipcc_update_status("tasklist", $data); | |
547 | }; | |
548 | ||
549 | warn $@ if $@; | |
550 | } | |
551 | ||
552 | my $tasklistcache = {}; | |
553 | ||
554 | sub get_tasklist { | |
555 | my ($nodename) = @_; | |
556 | ||
557 | my $kvstore = $versions->{kvstore} || {}; | |
558 | ||
559 | my $nodelist = get_nodelist(); | |
560 | ||
561 | my $res = []; | |
562 | foreach my $node (@$nodelist) { | |
563 | next if $nodename && ($nodename ne $node); | |
564 | eval { | |
565 | my $ver = $kvstore->{$node}->{tasklist} if $kvstore->{$node}; | |
566 | my $cd = $tasklistcache->{$node}; | |
567 | if (!$cd || !$ver || !$cd->{version} || | |
568 | ($cd->{version} != $ver)) { | |
569 | my $raw = &$ipcc_get_status("tasklist", $node) || '[]'; | |
570 | my $data = decode_json($raw); | |
571 | push @$res, @$data; | |
572 | $cd = $tasklistcache->{$node} = { | |
573 | data => $data, | |
574 | version => $ver, | |
575 | }; | |
576 | } elsif ($cd && $cd->{data}) { | |
577 | push @$res, @{$cd->{data}}; | |
578 | } | |
579 | }; | |
580 | my $err = $@; | |
581 | syslog('err', $err) if $err; | |
582 | } | |
583 | ||
584 | return $res; | |
585 | } | |
586 | ||
587 | sub broadcast_rrd { | |
588 | my ($rrdid, $data) = @_; | |
589 | ||
590 | eval { | |
591 | &$ipcc_update_status("rrd/$rrdid", $data); | |
592 | }; | |
593 | my $err = $@; | |
594 | ||
595 | warn $err if $err; | |
596 | } | |
597 | ||
598 | my $last_rrd_dump = 0; | |
599 | my $last_rrd_data = ""; | |
600 | ||
601 | sub rrd_dump { | |
602 | ||
603 | my $ctime = time(); | |
604 | ||
605 | my $diff = $ctime - $last_rrd_dump; | |
606 | if ($diff < 2) { | |
607 | return $last_rrd_data; | |
608 | } | |
609 | ||
610 | my $raw; | |
611 | eval { | |
612 | $raw = &$ipcc_send_rec(10); | |
613 | }; | |
614 | my $err = $@; | |
615 | ||
616 | if ($err) { | |
617 | warn $err; | |
618 | return {}; | |
619 | } | |
620 | ||
621 | my $res = {}; | |
622 | ||
623 | if ($raw) { | |
624 | while ($raw =~ s/^(.*)\n//) { | |
625 | my ($key, @ela) = split(/:/, $1); | |
626 | next if !$key; | |
627 | next if !(scalar(@ela) > 1); | |
628 | $res->{$key} = [ map { $_ eq 'U' ? undef : $_ } @ela ]; | |
629 | } | |
630 | } | |
631 | ||
632 | $last_rrd_dump = $ctime; | |
633 | $last_rrd_data = $res; | |
634 | ||
635 | return $res; | |
636 | } | |
637 | ||
638 | sub create_rrd_data { | |
639 | my ($rrdname, $timeframe, $cf) = @_; | |
640 | ||
641 | my $rrddir = "/var/lib/rrdcached/db"; | |
642 | ||
643 | my $rrd = "$rrddir/$rrdname"; | |
644 | ||
645 | my $setup = { | |
646 | hour => [ 60, 70 ], | |
647 | day => [ 60*30, 70 ], | |
648 | week => [ 60*180, 70 ], | |
649 | month => [ 60*720, 70 ], | |
650 | year => [ 60*10080, 70 ], | |
651 | }; | |
652 | ||
653 | my ($reso, $count) = @{$setup->{$timeframe}}; | |
654 | my $ctime = $reso*int(time()/$reso); | |
655 | my $req_start = $ctime - $reso*$count; | |
656 | ||
657 | $cf = "AVERAGE" if !$cf; | |
658 | ||
659 | my @args = ( | |
660 | "-s" => $req_start, | |
661 | "-e" => $ctime - 1, | |
662 | "-r" => $reso, | |
663 | ); | |
664 | ||
665 | my $socket = "/var/run/rrdcached.sock"; | |
666 | push @args, "--daemon" => "unix:$socket" if -S $socket; | |
667 | ||
668 | my ($start, $step, $names, $data) = RRDs::fetch($rrd, $cf, @args); | |
669 | ||
670 | my $err = RRDs::error; | |
671 | die "RRD error: $err\n" if $err; | |
672 | ||
673 | die "got wrong time resolution ($step != $reso)\n" | |
674 | if $step != $reso; | |
675 | ||
676 | my $res = []; | |
677 | my $fields = scalar(@$names); | |
678 | for my $line (@$data) { | |
679 | my $entry = { 'time' => $start }; | |
680 | $start += $step; | |
681 | for (my $i = 0; $i < $fields; $i++) { | |
682 | my $name = $names->[$i]; | |
683 | if (defined(my $val = $line->[$i])) { | |
684 | $entry->{$name} = $val; | |
685 | } else { | |
686 | # leave empty fields undefined | |
687 | # maybe make this configurable? | |
688 | } | |
689 | } | |
690 | push @$res, $entry; | |
691 | } | |
692 | ||
693 | return $res; | |
694 | } | |
695 | ||
696 | sub create_rrd_graph { | |
697 | my ($rrdname, $timeframe, $ds, $cf) = @_; | |
698 | ||
699 | # Using RRD graph is clumsy - maybe it | |
700 | # is better to simply fetch the data, and do all display | |
701 | # related things with javascript (new extjs html5 graph library). | |
702 | ||
703 | my $rrddir = "/var/lib/rrdcached/db"; | |
704 | ||
705 | my $rrd = "$rrddir/$rrdname"; | |
706 | ||
707 | my @ids = PVE::Tools::split_list($ds); | |
708 | ||
709 | my $ds_txt = join('_', @ids); | |
710 | ||
711 | my $filename = "${rrd}_${ds_txt}.png"; | |
712 | ||
713 | my $setup = { | |
714 | hour => [ 60, 60 ], | |
715 | day => [ 60*30, 70 ], | |
716 | week => [ 60*180, 70 ], | |
717 | month => [ 60*720, 70 ], | |
718 | year => [ 60*10080, 70 ], | |
719 | }; | |
720 | ||
721 | my ($reso, $count) = @{$setup->{$timeframe}}; | |
722 | ||
723 | my @args = ( | |
724 | "--imgformat" => "PNG", | |
725 | "--border" => 0, | |
726 | "--height" => 200, | |
727 | "--width" => 800, | |
728 | "--start" => - $reso*$count, | |
729 | "--end" => 'now' , | |
730 | "--lower-limit" => 0, | |
731 | ); | |
732 | ||
733 | my $socket = "/var/run/rrdcached.sock"; | |
734 | push @args, "--daemon" => "unix:$socket" if -S $socket; | |
735 | ||
736 | my @coldef = ('#00ddff', '#ff0000'); | |
737 | ||
738 | $cf = "AVERAGE" if !$cf; | |
739 | ||
740 | my $i = 0; | |
741 | foreach my $id (@ids) { | |
742 | my $col = $coldef[$i++] || die "fixme: no color definition"; | |
743 | push @args, "DEF:${id}=$rrd:${id}:$cf"; | |
744 | my $dataid = $id; | |
745 | if ($id eq 'cpu' || $id eq 'iowait') { | |
746 | push @args, "CDEF:${id}_per=${id},100,*"; | |
747 | $dataid = "${id}_per"; | |
748 | } | |
749 | push @args, "LINE2:${dataid}${col}:${id}"; | |
750 | } | |
751 | ||
752 | push @args, '--full-size-mode'; | |
753 | ||
754 | # we do not really store data into the file | |
755 | my $res = RRDs::graphv('-', @args); | |
756 | ||
757 | my $err = RRDs::error; | |
758 | die "RRD error: $err\n" if $err; | |
759 | ||
760 | return { filename => $filename, image => $res->{image} }; | |
761 | } | |
762 | ||
763 | # a fast way to read files (avoid fuse overhead) | |
764 | sub get_config { | |
765 | my ($path) = @_; | |
766 | ||
767 | return &$ipcc_get_config($path); | |
768 | } | |
769 | ||
770 | sub get_cluster_log { | |
771 | my ($user, $max) = @_; | |
772 | ||
773 | return &$ipcc_get_cluster_log($user, $max); | |
774 | } | |
775 | ||
776 | my $file_info = {}; | |
777 | ||
778 | sub cfs_register_file { | |
779 | my ($filename, $parser, $writer) = @_; | |
780 | ||
781 | $observed->{$filename} || die "unknown file '$filename'"; | |
782 | ||
783 | die "file '$filename' already registered" if $file_info->{$filename}; | |
784 | ||
785 | $file_info->{$filename} = { | |
786 | parser => $parser, | |
787 | writer => $writer, | |
788 | }; | |
789 | } | |
790 | ||
791 | my $ccache_read = sub { | |
792 | my ($filename, $parser, $version) = @_; | |
793 | ||
794 | $ccache->{$filename} = {} if !$ccache->{$filename}; | |
795 | ||
796 | my $ci = $ccache->{$filename}; | |
797 | ||
798 | if (!$ci->{version} || !$version || $ci->{version} != $version) { | |
799 | # we always call the parser, even when the file does not exists | |
800 | # (in that case $data is undef) | |
801 | my $data = get_config($filename); | |
802 | $ci->{data} = &$parser("/etc/pve/$filename", $data); | |
803 | $ci->{version} = $version; | |
804 | } | |
805 | ||
806 | my $res = ref($ci->{data}) ? dclone($ci->{data}) : $ci->{data}; | |
807 | ||
808 | return $res; | |
809 | }; | |
810 | ||
811 | sub cfs_file_version { | |
812 | my ($filename) = @_; | |
813 | ||
814 | my $version; | |
815 | my $infotag; | |
816 | if ($filename =~ m!^nodes/[^/]+/(openvz|lxc|qemu-server)/(\d+)\.conf$!) { | |
817 | my ($type, $vmid) = ($1, $2); | |
818 | if ($vmlist && $vmlist->{ids} && $vmlist->{ids}->{$vmid}) { | |
819 | $version = $vmlist->{ids}->{$vmid}->{version}; | |
820 | } | |
821 | $infotag = "/$type/"; | |
822 | } else { | |
823 | $infotag = $filename; | |
824 | $version = $versions->{$filename}; | |
825 | } | |
826 | ||
827 | my $info = $file_info->{$infotag} || | |
828 | die "unknown file type '$filename'\n"; | |
829 | ||
830 | return wantarray ? ($version, $info) : $version; | |
831 | } | |
832 | ||
833 | sub cfs_read_file { | |
834 | my ($filename) = @_; | |
835 | ||
836 | my ($version, $info) = cfs_file_version($filename); | |
837 | my $parser = $info->{parser}; | |
838 | ||
839 | return &$ccache_read($filename, $parser, $version); | |
840 | } | |
841 | ||
842 | sub cfs_write_file { | |
843 | my ($filename, $data) = @_; | |
844 | ||
845 | my ($version, $info) = cfs_file_version($filename); | |
846 | ||
847 | my $writer = $info->{writer} || die "no writer defined"; | |
848 | ||
849 | my $fsname = "/etc/pve/$filename"; | |
850 | ||
851 | my $raw = &$writer($fsname, $data); | |
852 | ||
853 | if (my $ci = $ccache->{$filename}) { | |
854 | $ci->{version} = undef; | |
855 | } | |
856 | ||
857 | PVE::Tools::file_set_contents($fsname, $raw); | |
858 | } | |
859 | ||
860 | my $cfs_lock = sub { | |
861 | my ($lockid, $timeout, $code, @param) = @_; | |
862 | ||
863 | my $res; | |
864 | ||
865 | # this timeout is for aquire the lock | |
866 | $timeout = 10 if !$timeout; | |
867 | ||
868 | my $filename = "$lockdir/$lockid"; | |
869 | ||
870 | my $msg = "can't aquire cfs lock '$lockid'"; | |
871 | ||
872 | eval { | |
873 | ||
874 | mkdir $lockdir; | |
875 | ||
876 | if (! -d $lockdir) { | |
877 | die "$msg: pve cluster filesystem not online.\n"; | |
878 | } | |
879 | ||
880 | local $SIG{ALRM} = sub { die "got lock request timeout\n"; }; | |
881 | ||
882 | alarm ($timeout); | |
883 | ||
884 | if (!(mkdir $filename)) { | |
885 | print STDERR "trying to aquire cfs lock '$lockid' ..."; | |
886 | while (1) { | |
887 | if (!(mkdir $filename)) { | |
888 | (utime 0, 0, $filename); # cfs unlock request | |
889 | } else { | |
890 | print STDERR " OK\n"; | |
891 | last; | |
892 | } | |
893 | sleep(1); | |
894 | } | |
895 | } | |
896 | ||
897 | # fixed command timeout: cfs locks have a timeout of 120 | |
898 | # using 60 gives us another 60 seconds to abort the task | |
899 | alarm(60); | |
900 | local $SIG{ALRM} = sub { die "got lock timeout - aborting command\n"; }; | |
901 | ||
902 | cfs_update(); # make sure we read latest versions inside code() | |
903 | ||
904 | $res = &$code(@param); | |
905 | ||
906 | alarm(0); | |
907 | }; | |
908 | ||
909 | my $err = $@; | |
910 | ||
911 | alarm(0); | |
912 | ||
913 | if ($err && ($err eq "got lock request timeout\n") && | |
914 | !check_cfs_quorum()){ | |
915 | $err = "$msg: no quorum!\n"; | |
916 | } | |
917 | ||
918 | if (!$err || $err !~ /^got lock timeout -/) { | |
919 | rmdir $filename; # cfs unlock | |
920 | } | |
921 | ||
922 | if ($err) { | |
923 | $@ = $err; | |
924 | return undef; | |
925 | } | |
926 | ||
927 | $@ = undef; | |
928 | ||
929 | return $res; | |
930 | }; | |
931 | ||
932 | sub cfs_lock_file { | |
933 | my ($filename, $timeout, $code, @param) = @_; | |
934 | ||
935 | my $info = $observed->{$filename} || die "unknown file '$filename'"; | |
936 | ||
937 | my $lockid = "file-$filename"; | |
938 | $lockid =~ s/[.\/]/_/g; | |
939 | ||
940 | &$cfs_lock($lockid, $timeout, $code, @param); | |
941 | } | |
942 | ||
943 | sub cfs_lock_storage { | |
944 | my ($storeid, $timeout, $code, @param) = @_; | |
945 | ||
946 | my $lockid = "storage-$storeid"; | |
947 | ||
948 | &$cfs_lock($lockid, $timeout, $code, @param); | |
949 | } | |
950 | ||
951 | sub cfs_lock_domain { | |
952 | my ($domainname, $timeout, $code, @param) = @_; | |
953 | ||
954 | my $lockid = "domain-$domainname"; | |
955 | ||
956 | &$cfs_lock($lockid, $timeout, $code, @param); | |
957 | } | |
958 | ||
959 | my $log_levels = { | |
960 | "emerg" => 0, | |
961 | "alert" => 1, | |
962 | "crit" => 2, | |
963 | "critical" => 2, | |
964 | "err" => 3, | |
965 | "error" => 3, | |
966 | "warn" => 4, | |
967 | "warning" => 4, | |
968 | "notice" => 5, | |
969 | "info" => 6, | |
970 | "debug" => 7, | |
971 | }; | |
972 | ||
973 | sub log_msg { | |
974 | my ($priority, $ident, $msg) = @_; | |
975 | ||
976 | if (my $tmp = $log_levels->{$priority}) { | |
977 | $priority = $tmp; | |
978 | } | |
979 | ||
980 | die "need numeric log priority" if $priority !~ /^\d+$/; | |
981 | ||
982 | my $tag = PVE::SafeSyslog::tag(); | |
983 | ||
984 | $msg = "empty message" if !$msg; | |
985 | ||
986 | $ident = "" if !$ident; | |
987 | $ident = encode("ascii", $ident, | |
988 | sub { sprintf "\\u%04x", shift }); | |
989 | ||
990 | my $ascii = encode("ascii", $msg, sub { sprintf "\\u%04x", shift }); | |
991 | ||
992 | if ($ident) { | |
993 | syslog($priority, "<%s> %s", $ident, $ascii); | |
994 | } else { | |
995 | syslog($priority, "%s", $ascii); | |
996 | } | |
997 | ||
998 | eval { &$ipcc_log($priority, $ident, $tag, $ascii); }; | |
999 | ||
1000 | syslog("err", "writing cluster log failed: $@") if $@; | |
1001 | } | |
1002 | ||
1003 | sub check_vmid_unused { | |
1004 | my ($vmid, $noerr) = @_; | |
1005 | ||
1006 | my $vmlist = get_vmlist(); | |
1007 | ||
1008 | my $d = $vmlist->{ids}->{$vmid}; | |
1009 | return 1 if !defined($d); | |
1010 | ||
1011 | return undef if $noerr; | |
1012 | ||
1013 | my $vmtypestr = $d->{type} eq 'qemu' ? 'VM' : 'CT'; | |
1014 | die "$vmtypestr $vmid already exists on node '$d->{node}'\n"; | |
1015 | } | |
1016 | ||
1017 | sub check_node_exists { | |
1018 | my ($nodename, $noerr) = @_; | |
1019 | ||
1020 | my $nodelist = $clinfo->{nodelist}; | |
1021 | return 1 if $nodelist && $nodelist->{$nodename}; | |
1022 | ||
1023 | return undef if $noerr; | |
1024 | ||
1025 | die "no such cluster node '$nodename'\n"; | |
1026 | } | |
1027 | ||
1028 | # this is also used to get the IP of the local node | |
1029 | sub remote_node_ip { | |
1030 | my ($nodename, $noerr) = @_; | |
1031 | ||
1032 | my $nodelist = $clinfo->{nodelist}; | |
1033 | if ($nodelist && $nodelist->{$nodename}) { | |
1034 | if (my $ip = $nodelist->{$nodename}->{ip}) { | |
1035 | return $ip if !wantarray; | |
1036 | my $family = $nodelist->{$nodename}->{address_family}; | |
1037 | if (!$family) { | |
1038 | $nodelist->{$nodename}->{address_family} = | |
1039 | $family = | |
1040 | PVE::Tools::get_host_address_family($ip); | |
1041 | } | |
1042 | return wantarray ? ($ip, $family) : $ip; | |
1043 | } | |
1044 | } | |
1045 | ||
1046 | # fallback: try to get IP by other means | |
1047 | return PVE::Network::get_ip_from_hostname($nodename, $noerr); | |
1048 | } | |
1049 | ||
1050 | sub get_local_migration_ip { | |
1051 | my ($migration_network, $noerr) = @_; | |
1052 | ||
1053 | my $cidr = $migration_network; | |
1054 | ||
1055 | if (!defined($cidr)) { | |
1056 | my $dc_conf = cfs_read_file('datacenter.cfg'); | |
1057 | $cidr = $dc_conf->{migration}->{network} | |
1058 | if defined($dc_conf->{migration}->{network}); | |
1059 | } | |
1060 | ||
1061 | if (defined($cidr)) { | |
1062 | my $ips = PVE::Network::get_local_ip_from_cidr($cidr); | |
1063 | ||
1064 | die "could not get migration ip: no IP address configured on local " . | |
1065 | "node for network '$cidr'\n" if !$noerr && (scalar(@$ips) == 0); | |
1066 | ||
1067 | die "could not get migration ip: multiple IP address configured for " . | |
1068 | "network '$cidr'\n" if !$noerr && (scalar(@$ips) > 1); | |
1069 | ||
1070 | return @$ips[0]; | |
1071 | } | |
1072 | ||
1073 | return undef; | |
1074 | }; | |
1075 | ||
1076 | # ssh related utility functions | |
1077 | ||
1078 | sub ssh_merge_keys { | |
1079 | # remove duplicate keys in $sshauthkeys | |
1080 | # ssh-copy-id simply add keys, so the file can grow to large | |
1081 | ||
1082 | my $data = ''; | |
1083 | if (-f $sshauthkeys) { | |
1084 | $data = PVE::Tools::file_get_contents($sshauthkeys, 128*1024); | |
1085 | chomp($data); | |
1086 | } | |
1087 | ||
1088 | my $found_backup; | |
1089 | if (-f $rootsshauthkeysbackup) { | |
1090 | $data .= "\n"; | |
1091 | $data .= PVE::Tools::file_get_contents($rootsshauthkeysbackup, 128*1024); | |
1092 | chomp($data); | |
1093 | $found_backup = 1; | |
1094 | } | |
1095 | ||
1096 | # always add ourself | |
1097 | if (-f $ssh_rsa_id) { | |
1098 | my $pub = PVE::Tools::file_get_contents($ssh_rsa_id); | |
1099 | chomp($pub); | |
1100 | $data .= "\n$pub\n"; | |
1101 | } | |
1102 | ||
1103 | my $newdata = ""; | |
1104 | my $vhash = {}; | |
1105 | my @lines = split(/\n/, $data); | |
1106 | foreach my $line (@lines) { | |
1107 | if ($line !~ /^#/ && $line =~ m/(^|\s)ssh-(rsa|dsa)\s+(\S+)\s+\S+$/) { | |
1108 | next if $vhash->{$3}++; | |
1109 | } | |
1110 | $newdata .= "$line\n"; | |
1111 | } | |
1112 | ||
1113 | PVE::Tools::file_set_contents($sshauthkeys, $newdata, 0600); | |
1114 | ||
1115 | if ($found_backup && -l $rootsshauthkeys) { | |
1116 | # everything went well, so we can remove the backup | |
1117 | unlink $rootsshauthkeysbackup; | |
1118 | } | |
1119 | } | |
1120 | ||
1121 | sub setup_sshd_config { | |
1122 | my ($start_sshd) = @_; | |
1123 | ||
1124 | my $conf = PVE::Tools::file_get_contents($sshd_config_fn); | |
1125 | ||
1126 | return if $conf =~ m/^PermitRootLogin\s+yes\s*$/m; | |
1127 | ||
1128 | if ($conf !~ s/^#?PermitRootLogin.*$/PermitRootLogin yes/m) { | |
1129 | chomp $conf; | |
1130 | $conf .= "\nPermitRootLogin yes\n"; | |
1131 | } | |
1132 | ||
1133 | PVE::Tools::file_set_contents($sshd_config_fn, $conf); | |
1134 | ||
1135 | my $cmd = $start_sshd ? 'reload-or-restart' : 'reload-or-try-restart'; | |
1136 | PVE::Tools::run_command(['systemctl', $cmd, 'sshd']); | |
1137 | } | |
1138 | ||
1139 | sub setup_rootsshconfig { | |
1140 | ||
1141 | # create ssh key if it does not exist | |
1142 | if (! -f $ssh_rsa_id) { | |
1143 | mkdir '/root/.ssh/'; | |
1144 | system ("echo|ssh-keygen -t rsa -N '' -b 2048 -f ${ssh_rsa_id_priv}"); | |
1145 | } | |
1146 | ||
1147 | # create ssh config if it does not exist | |
1148 | if (! -f $rootsshconfig) { | |
1149 | mkdir '/root/.ssh'; | |
1150 | if (my $fh = IO::File->new($rootsshconfig, O_CREAT|O_WRONLY|O_EXCL, 0640)) { | |
1151 | # this is the default ciphers list from Debian's OpenSSH package (OpenSSH_7.4p1 Debian-10, OpenSSL 1.0.2k 26 Jan 2017) | |
1152 | # changed order to put AES before Chacha20 (most hardware has AESNI) | |
1153 | print $fh "Ciphers aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm\@openssh.com,aes256-gcm\@openssh.com,chacha20-poly1305\@openssh.com\n"; | |
1154 | close($fh); | |
1155 | } | |
1156 | } | |
1157 | } | |
1158 | ||
1159 | sub setup_ssh_keys { | |
1160 | ||
1161 | mkdir $authdir; | |
1162 | ||
1163 | my $import_ok; | |
1164 | ||
1165 | if (! -f $sshauthkeys) { | |
1166 | my $old; | |
1167 | if (-f $rootsshauthkeys) { | |
1168 | $old = PVE::Tools::file_get_contents($rootsshauthkeys, 128*1024); | |
1169 | } | |
1170 | if (my $fh = IO::File->new ($sshauthkeys, O_CREAT|O_WRONLY|O_EXCL, 0400)) { | |
1171 | PVE::Tools::safe_print($sshauthkeys, $fh, $old) if $old; | |
1172 | close($fh); | |
1173 | $import_ok = 1; | |
1174 | } | |
1175 | } | |
1176 | ||
1177 | warn "can't create shared ssh key database '$sshauthkeys'\n" | |
1178 | if ! -f $sshauthkeys; | |
1179 | ||
1180 | if (-f $rootsshauthkeys && ! -l $rootsshauthkeys) { | |
1181 | if (!rename($rootsshauthkeys , $rootsshauthkeysbackup)) { | |
1182 | warn "rename $rootsshauthkeys failed - $!\n"; | |
1183 | } | |
1184 | } | |
1185 | ||
1186 | if (! -l $rootsshauthkeys) { | |
1187 | symlink $sshauthkeys, $rootsshauthkeys; | |
1188 | } | |
1189 | ||
1190 | if (! -l $rootsshauthkeys) { | |
1191 | warn "can't create symlink for ssh keys '$rootsshauthkeys' -> '$sshauthkeys'\n"; | |
1192 | } else { | |
1193 | unlink $rootsshauthkeysbackup if $import_ok; | |
1194 | } | |
1195 | } | |
1196 | ||
1197 | sub ssh_unmerge_known_hosts { | |
1198 | return if ! -l $sshglobalknownhosts; | |
1199 | ||
1200 | my $old = ''; | |
1201 | $old = PVE::Tools::file_get_contents($sshknownhosts, 128*1024) | |
1202 | if -f $sshknownhosts; | |
1203 | ||
1204 | PVE::Tools::file_set_contents($sshglobalknownhosts, $old); | |
1205 | } | |
1206 | ||
1207 | sub ssh_merge_known_hosts { | |
1208 | my ($nodename, $ip_address, $createLink) = @_; | |
1209 | ||
1210 | die "no node name specified" if !$nodename; | |
1211 | die "no ip address specified" if !$ip_address; | |
1212 | ||
1213 | # ssh lowercases hostnames (aliases) before comparision, so we need too | |
1214 | $nodename = lc($nodename); | |
1215 | $ip_address = lc($ip_address); | |
1216 | ||
1217 | mkdir $authdir; | |
1218 | ||
1219 | if (! -f $sshknownhosts) { | |
1220 | if (my $fh = IO::File->new($sshknownhosts, O_CREAT|O_WRONLY|O_EXCL, 0600)) { | |
1221 | close($fh); | |
1222 | } | |
1223 | } | |
1224 | ||
1225 | my $old = PVE::Tools::file_get_contents($sshknownhosts, 128*1024); | |
1226 | ||
1227 | my $new = ''; | |
1228 | ||
1229 | if ((! -l $sshglobalknownhosts) && (-f $sshglobalknownhosts)) { | |
1230 | $new = PVE::Tools::file_get_contents($sshglobalknownhosts, 128*1024); | |
1231 | } | |
1232 | ||
1233 | my $hostkey = PVE::Tools::file_get_contents($ssh_host_rsa_id); | |
1234 | # Note: file sometimes containe emty lines at start, so we use multiline match | |
1235 | die "can't parse $ssh_host_rsa_id" if $hostkey !~ m/^(ssh-rsa\s\S+)(\s.*)?$/m; | |
1236 | $hostkey = $1; | |
1237 | ||
1238 | my $data = ''; | |
1239 | my $vhash = {}; | |
1240 | ||
1241 | my $found_nodename; | |
1242 | my $found_local_ip; | |
1243 | ||
1244 | my $merge_line = sub { | |
1245 | my ($line, $all) = @_; | |
1246 | ||
1247 | return if $line =~ m/^\s*$/; # skip empty lines | |
1248 | return if $line =~ m/^#/; # skip comments | |
1249 | ||
1250 | if ($line =~ m/^(\S+)\s(ssh-rsa\s\S+)(\s.*)?$/) { | |
1251 | my $key = $1; | |
1252 | my $rsakey = $2; | |
1253 | if (!$vhash->{$key}) { | |
1254 | $vhash->{$key} = 1; | |
1255 | if ($key =~ m/\|1\|([^\|\s]+)\|([^\|\s]+)$/) { | |
1256 | my $salt = decode_base64($1); | |
1257 | my $digest = $2; | |
1258 | my $hmac = Digest::HMAC_SHA1->new($salt); | |
1259 | $hmac->add($nodename); | |
1260 | my $hd = $hmac->b64digest . '='; | |
1261 | if ($digest eq $hd) { | |
1262 | if ($rsakey eq $hostkey) { | |
1263 | $found_nodename = 1; | |
1264 | $data .= $line; | |
1265 | } | |
1266 | return; | |
1267 | } | |
1268 | $hmac = Digest::HMAC_SHA1->new($salt); | |
1269 | $hmac->add($ip_address); | |
1270 | $hd = $hmac->b64digest . '='; | |
1271 | if ($digest eq $hd) { | |
1272 | if ($rsakey eq $hostkey) { | |
1273 | $found_local_ip = 1; | |
1274 | $data .= $line; | |
1275 | } | |
1276 | return; | |
1277 | } | |
1278 | } else { | |
1279 | $key = lc($key); # avoid duplicate entries, ssh compares lowercased | |
1280 | if ($key eq $ip_address) { | |
1281 | $found_local_ip = 1 if $rsakey eq $hostkey; | |
1282 | } elsif ($key eq $nodename) { | |
1283 | $found_nodename = 1 if $rsakey eq $hostkey; | |
1284 | } | |
1285 | } | |
1286 | $data .= $line; | |
1287 | } | |
1288 | } elsif ($all) { | |
1289 | $data .= $line; | |
1290 | } | |
1291 | }; | |
1292 | ||
1293 | while ($old && $old =~ s/^((.*?)(\n|$))//) { | |
1294 | my $line = "$2\n"; | |
1295 | &$merge_line($line, 1); | |
1296 | } | |
1297 | ||
1298 | while ($new && $new =~ s/^((.*?)(\n|$))//) { | |
1299 | my $line = "$2\n"; | |
1300 | &$merge_line($line); | |
1301 | } | |
1302 | ||
1303 | # add our own key if not already there | |
1304 | $data .= "$nodename $hostkey\n" if !$found_nodename; | |
1305 | $data .= "$ip_address $hostkey\n" if !$found_local_ip; | |
1306 | ||
1307 | PVE::Tools::file_set_contents($sshknownhosts, $data); | |
1308 | ||
1309 | return if !$createLink; | |
1310 | ||
1311 | unlink $sshglobalknownhosts; | |
1312 | symlink $sshknownhosts, $sshglobalknownhosts; | |
1313 | ||
1314 | warn "can't create symlink for ssh known hosts '$sshglobalknownhosts' -> '$sshknownhosts'\n" | |
1315 | if ! -l $sshglobalknownhosts; | |
1316 | ||
1317 | } | |
1318 | ||
1319 | my $migration_format = { | |
1320 | type => { | |
1321 | default_key => 1, | |
1322 | type => 'string', | |
1323 | enum => ['secure', 'insecure'], | |
1324 | description => "Migration traffic is encrypted using an SSH tunnel by " . | |
1325 | "default. On secure, completely private networks this can be " . | |
1326 | "disabled to increase performance.", | |
1327 | default => 'secure', | |
1328 | }, | |
1329 | network => { | |
1330 | optional => 1, | |
1331 | type => 'string', format => 'CIDR', | |
1332 | format_description => 'CIDR', | |
1333 | description => "CIDR of the (sub) network that is used for migration." | |
1334 | }, | |
1335 | }; | |
1336 | ||
1337 | my $datacenter_schema = { | |
1338 | type => "object", | |
1339 | additionalProperties => 0, | |
1340 | properties => { | |
1341 | keyboard => { | |
1342 | optional => 1, | |
1343 | type => 'string', | |
1344 | description => "Default keybord layout for vnc server.", | |
1345 | enum => PVE::Tools::kvmkeymaplist(), | |
1346 | }, | |
1347 | language => { | |
1348 | optional => 1, | |
1349 | type => 'string', | |
1350 | description => "Default GUI language.", | |
1351 | enum => [ 'en', 'de' ], | |
1352 | }, | |
1353 | http_proxy => { | |
1354 | optional => 1, | |
1355 | type => 'string', | |
1356 | description => "Specify external http proxy which is used for downloads (example: 'http://username:password\@host:port/')", | |
1357 | pattern => "http://.*", | |
1358 | }, | |
1359 | migration_unsecure => { | |
1360 | optional => 1, | |
1361 | type => 'boolean', | |
1362 | description => "Migration is secure using SSH tunnel by default. " . | |
1363 | "For secure private networks you can disable it to speed up " . | |
1364 | "migration. Deprecated, use the 'migration' property instead!", | |
1365 | }, | |
1366 | migration => { | |
1367 | optional => 1, | |
1368 | type => 'string', format => $migration_format, | |
1369 | description => "For cluster wide migration settings.", | |
1370 | }, | |
1371 | console => { | |
1372 | optional => 1, | |
1373 | type => 'string', | |
1374 | description => "Select the default Console viewer. You can either use the builtin java applet (VNC), an external virt-viewer comtatible application (SPICE), or an HTML5 based viewer (noVNC).", | |
1375 | enum => ['applet', 'vv', 'html5'], | |
1376 | }, | |
1377 | email_from => { | |
1378 | optional => 1, | |
1379 | type => 'string', | |
1380 | format => 'email-opt', | |
1381 | description => "Specify email address to send notification from (default is root@\$hostname)", | |
1382 | }, | |
1383 | max_workers => { | |
1384 | optional => 1, | |
1385 | type => 'integer', | |
1386 | minimum => 1, | |
1387 | description => "Defines how many workers (per node) are maximal started ". | |
1388 | " on actions like 'stopall VMs' or task from the ha-manager.", | |
1389 | }, | |
1390 | fencing => { | |
1391 | optional => 1, | |
1392 | type => 'string', | |
1393 | default => 'watchdog', | |
1394 | enum => [ 'watchdog', 'hardware', 'both' ], | |
1395 | description => "Set the fencing mode of the HA cluster. Hardware mode " . | |
1396 | "needs a valid configuration of fence devices in /etc/pve/ha/fence.cfg." . | |
1397 | " With both all two modes are used." . | |
1398 | "\n\nWARNING: 'hardware' and 'both' are EXPERIMENTAL & WIP", | |
1399 | }, | |
1400 | mac_prefix => { | |
1401 | optional => 1, | |
1402 | type => 'string', | |
1403 | pattern => qr/[a-f0-9]{2}(?::[a-f0-9]{2}){0,2}:?/i, | |
1404 | description => 'Prefix for autogenerated MAC addresses.', | |
1405 | }, | |
1406 | }, | |
1407 | }; | |
1408 | ||
1409 | # make schema accessible from outside (for documentation) | |
1410 | sub get_datacenter_schema { return $datacenter_schema }; | |
1411 | ||
1412 | sub parse_datacenter_config { | |
1413 | my ($filename, $raw) = @_; | |
1414 | ||
1415 | my $res = PVE::JSONSchema::parse_config($datacenter_schema, $filename, $raw // ''); | |
1416 | ||
1417 | if (my $migration = $res->{migration}) { | |
1418 | $res->{migration} = PVE::JSONSchema::parse_property_string($migration_format, $migration); | |
1419 | } | |
1420 | ||
1421 | # for backwards compatibility only, new migration property has precedence | |
1422 | if (defined($res->{migration_unsecure})) { | |
1423 | if (defined($res->{migration}->{type})) { | |
1424 | warn "deprecated setting 'migration_unsecure' and new 'migration: type' " . | |
1425 | "set at same time! Ignore 'migration_unsecure'\n"; | |
1426 | } else { | |
1427 | $res->{migration}->{type} = ($res->{migration_unsecure}) ? 'insecure' : 'secure'; | |
1428 | } | |
1429 | } | |
1430 | ||
1431 | return $res; | |
1432 | } | |
1433 | ||
1434 | sub write_datacenter_config { | |
1435 | my ($filename, $cfg) = @_; | |
1436 | ||
1437 | # map deprecated setting to new one | |
1438 | if (defined($cfg->{migration_unsecure}) && !defined($cfg->{migration})) { | |
1439 | my $migration_unsecure = delete $cfg->{migration_unsecure}; | |
1440 | $cfg->{migration}->{type} = ($migration_unsecure) ? 'insecure' : 'secure'; | |
1441 | } | |
1442 | ||
1443 | return PVE::JSONSchema::dump_config($datacenter_schema, $filename, $cfg); | |
1444 | } | |
1445 | ||
1446 | cfs_register_file('datacenter.cfg', | |
1447 | \&parse_datacenter_config, | |
1448 | \&write_datacenter_config); | |
1449 | ||
1450 | # X509 Certificate cache helper | |
1451 | ||
1452 | my $cert_cache_nodes = {}; | |
1453 | my $cert_cache_timestamp = time(); | |
1454 | my $cert_cache_fingerprints = {}; | |
1455 | ||
1456 | sub update_cert_cache { | |
1457 | my ($update_node, $clear) = @_; | |
1458 | ||
1459 | syslog('info', "Clearing outdated entries from certificate cache") | |
1460 | if $clear; | |
1461 | ||
1462 | $cert_cache_timestamp = time() if !defined($update_node); | |
1463 | ||
1464 | my $node_list = defined($update_node) ? | |
1465 | [ $update_node ] : [ keys %$cert_cache_nodes ]; | |
1466 | ||
1467 | foreach my $node (@$node_list) { | |
1468 | my $clear_old = sub { | |
1469 | if (my $old_fp = $cert_cache_nodes->{$node}) { | |
1470 | # distrust old fingerprint | |
1471 | delete $cert_cache_fingerprints->{$old_fp}; | |
1472 | # ensure reload on next proxied request | |
1473 | delete $cert_cache_nodes->{$node}; | |
1474 | } | |
1475 | }; | |
1476 | ||
1477 | my $cert_path = "/etc/pve/nodes/$node/pve-ssl.pem"; | |
1478 | my $custom_cert_path = "/etc/pve/nodes/$node/pveproxy-ssl.pem"; | |
1479 | ||
1480 | $cert_path = $custom_cert_path if -f $custom_cert_path; | |
1481 | ||
1482 | my $cert; | |
1483 | eval { | |
1484 | my $bio = Net::SSLeay::BIO_new_file($cert_path, 'r'); | |
1485 | $cert = Net::SSLeay::PEM_read_bio_X509($bio); | |
1486 | Net::SSLeay::BIO_free($bio); | |
1487 | }; | |
1488 | my $err = $@; | |
1489 | if ($err || !defined($cert)) { | |
1490 | &$clear_old() if $clear; | |
1491 | next; | |
1492 | } | |
1493 | ||
1494 | my $fp; | |
1495 | eval { | |
1496 | $fp = Net::SSLeay::X509_get_fingerprint($cert, 'sha256'); | |
1497 | }; | |
1498 | $err = $@; | |
1499 | if ($err || !defined($fp) || $fp eq '') { | |
1500 | &$clear_old() if $clear; | |
1501 | next; | |
1502 | } | |
1503 | ||
1504 | my $old_fp = $cert_cache_nodes->{$node}; | |
1505 | $cert_cache_fingerprints->{$fp} = 1; | |
1506 | $cert_cache_nodes->{$node} = $fp; | |
1507 | ||
1508 | if (defined($old_fp) && $fp ne $old_fp) { | |
1509 | delete $cert_cache_fingerprints->{$old_fp}; | |
1510 | } | |
1511 | } | |
1512 | } | |
1513 | ||
1514 | # load and cache cert fingerprint once | |
1515 | sub initialize_cert_cache { | |
1516 | my ($node) = @_; | |
1517 | ||
1518 | update_cert_cache($node) | |
1519 | if defined($node) && !defined($cert_cache_nodes->{$node}); | |
1520 | } | |
1521 | ||
1522 | sub check_cert_fingerprint { | |
1523 | my ($cert) = @_; | |
1524 | ||
1525 | # clear cache every 30 minutes at least | |
1526 | update_cert_cache(undef, 1) if time() - $cert_cache_timestamp >= 60*30; | |
1527 | ||
1528 | # get fingerprint of server certificate | |
1529 | my $fp; | |
1530 | eval { | |
1531 | $fp = Net::SSLeay::X509_get_fingerprint($cert, 'sha256'); | |
1532 | }; | |
1533 | return 0 if $@ || !defined($fp) || $fp eq ''; # error | |
1534 | ||
1535 | my $check = sub { | |
1536 | for my $expected (keys %$cert_cache_fingerprints) { | |
1537 | return 1 if $fp eq $expected; | |
1538 | } | |
1539 | return 0; | |
1540 | }; | |
1541 | ||
1542 | return 1 if &$check(); | |
1543 | ||
1544 | # clear cache and retry at most once every minute | |
1545 | if (time() - $cert_cache_timestamp >= 60) { | |
1546 | syslog ('info', "Could not verify remote node certificate '$fp' with list of pinned certificates, refreshing cache"); | |
1547 | update_cert_cache(); | |
1548 | return &$check(); | |
1549 | } | |
1550 | ||
1551 | return 0; | |
1552 | } | |
1553 | ||
1554 | # bash completion helpers | |
1555 | ||
1556 | sub complete_next_vmid { | |
1557 | ||
1558 | my $vmlist = get_vmlist() || {}; | |
1559 | my $idlist = $vmlist->{ids} || {}; | |
1560 | ||
1561 | for (my $i = 100; $i < 10000; $i++) { | |
1562 | return [$i] if !defined($idlist->{$i}); | |
1563 | } | |
1564 | ||
1565 | return []; | |
1566 | } | |
1567 | ||
1568 | sub complete_vmid { | |
1569 | ||
1570 | my $vmlist = get_vmlist(); | |
1571 | my $ids = $vmlist->{ids} || {}; | |
1572 | ||
1573 | return [ keys %$ids ]; | |
1574 | } | |
1575 | ||
1576 | sub complete_local_vmid { | |
1577 | ||
1578 | my $vmlist = get_vmlist(); | |
1579 | my $ids = $vmlist->{ids} || {}; | |
1580 | ||
1581 | my $nodename = PVE::INotify::nodename(); | |
1582 | ||
1583 | my $res = []; | |
1584 | foreach my $vmid (keys %$ids) { | |
1585 | my $d = $ids->{$vmid}; | |
1586 | next if !$d->{node} || $d->{node} ne $nodename; | |
1587 | push @$res, $vmid; | |
1588 | } | |
1589 | ||
1590 | return $res; | |
1591 | } | |
1592 | ||
1593 | sub complete_migration_target { | |
1594 | ||
1595 | my $res = []; | |
1596 | ||
1597 | my $nodename = PVE::INotify::nodename(); | |
1598 | ||
1599 | my $nodelist = get_nodelist(); | |
1600 | foreach my $node (@$nodelist) { | |
1601 | next if $node eq $nodename; | |
1602 | push @$res, $node; | |
1603 | } | |
1604 | ||
1605 | return $res; | |
1606 | } | |
1607 | ||
1608 | sub get_ssh_info { | |
1609 | my ($node, $network_cidr) = @_; | |
1610 | ||
1611 | my $ip; | |
1612 | if (defined($network_cidr)) { | |
1613 | # Use mtunnel via to get the remote node's ip inside $network_cidr. | |
1614 | # This goes over the regular network (iow. uses get_ssh_info() with | |
1615 | # $network_cidr undefined. | |
1616 | # FIXME: Use the REST API client for this after creating an API entry | |
1617 | # for get_migration_ip. | |
1618 | my $default_remote = get_ssh_info($node, undef); | |
1619 | my $default_ssh = ssh_info_to_command($default_remote); | |
1620 | my $cmd =[@$default_ssh, 'pvecm', 'mtunnel', | |
1621 | '-migration_network', $network_cidr, | |
1622 | '-get_migration_ip' | |
1623 | ]; | |
1624 | PVE::Tools::run_command($cmd, outfunc => sub { | |
1625 | my ($line) = @_; | |
1626 | chomp $line; | |
1627 | die "internal error: unexpected output from mtunnel\n" | |
1628 | if defined($ip); | |
1629 | if ($line =~ /^ip: '(.*)'$/) { | |
1630 | $ip = $1; | |
1631 | } else { | |
1632 | die "internal error: bad output from mtunnel\n" | |
1633 | if defined($ip); | |
1634 | } | |
1635 | }); | |
1636 | die "failed to get ip for node '$node' in network '$network_cidr'\n" | |
1637 | if !defined($ip); | |
1638 | } else { | |
1639 | $ip = remote_node_ip($node); | |
1640 | } | |
1641 | ||
1642 | return { | |
1643 | ip => $ip, | |
1644 | name => $node, | |
1645 | network => $network_cidr, | |
1646 | }; | |
1647 | } | |
1648 | ||
1649 | sub ssh_info_to_command_base { | |
1650 | my ($info, @extra_options) = @_; | |
1651 | return [ | |
1652 | '/usr/bin/ssh', | |
1653 | '-o', 'BatchMode=yes', | |
1654 | '-o', 'HostKeyAlias='.$info->{name}, | |
1655 | @extra_options | |
1656 | ]; | |
1657 | } | |
1658 | ||
1659 | sub ssh_info_to_command { | |
1660 | my ($info, @extra_options) = @_; | |
1661 | my $cmd = ssh_info_to_command_base($info, @extra_options); | |
1662 | push @$cmd, "root\@$info->{ip}"; | |
1663 | return $cmd; | |
1664 | } | |
1665 | ||
1666 | 1; |