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1 | package PVE::Cluster; | |
2 | ||
3 | use strict; | |
4 | use warnings; | |
5 | ||
6 | use Encode; | |
7 | use File::stat qw(); | |
8 | use JSON; | |
9 | use Net::SSLeay; | |
10 | use POSIX qw(ENOENT); | |
11 | use Socket; | |
12 | use Storable qw(dclone); | |
13 | ||
14 | use PVE::Certificate; | |
15 | use PVE::INotify; | |
16 | use PVE::IPCC; | |
17 | use PVE::JSONSchema; | |
18 | use PVE::Network; | |
19 | use PVE::SafeSyslog; | |
20 | use PVE::Tools qw(run_command); | |
21 | ||
22 | use PVE::Cluster::IPCConst; | |
23 | ||
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 | # x509 certificate utils | |
33 | ||
34 | my $basedir = "/etc/pve"; | |
35 | my $authdir = "$basedir/priv"; | |
36 | my $lockdir = "/etc/pve/priv/lock"; | |
37 | ||
38 | # cfs and corosync files | |
39 | my $dbfile = "/var/lib/pve-cluster/config.db"; | |
40 | my $dbbackupdir = "/var/lib/pve-cluster/backup"; | |
41 | ||
42 | # this is just a readonly copy, the relevant one is in status.c from pmxcfs | |
43 | # observed files are the one we can get directly through IPCC, they are cached | |
44 | # using a computed version and only those can be used by the cfs_*_file methods | |
45 | my $observed = { | |
46 | 'vzdump.cron' => 1, | |
47 | 'storage.cfg' => 1, | |
48 | 'datacenter.cfg' => 1, | |
49 | 'replication.cfg' => 1, | |
50 | 'corosync.conf' => 1, | |
51 | 'corosync.conf.new' => 1, | |
52 | 'user.cfg' => 1, | |
53 | 'domains.cfg' => 1, | |
54 | 'priv/shadow.cfg' => 1, | |
55 | 'priv/tfa.cfg' => 1, | |
56 | 'priv/token.cfg' => 1, | |
57 | '/qemu-server/' => 1, | |
58 | '/openvz/' => 1, | |
59 | '/lxc/' => 1, | |
60 | 'ha/crm_commands' => 1, | |
61 | 'ha/manager_status' => 1, | |
62 | 'ha/resources.cfg' => 1, | |
63 | 'ha/groups.cfg' => 1, | |
64 | 'ha/fence.cfg' => 1, | |
65 | 'status.cfg' => 1, | |
66 | 'ceph.conf' => 1, | |
67 | 'sdn/vnets.cfg' => 1, | |
68 | 'sdn/vnets.cfg.new' => 1, | |
69 | 'sdn/zones.cfg' => 1, | |
70 | 'sdn/zones.cfg.new' => 1, | |
71 | 'sdn/controllers.cfg' => 1, | |
72 | 'sdn/controllers.cfg.new' => 1, | |
73 | 'virtual-guest/cpu-models.conf' => 1, | |
74 | }; | |
75 | ||
76 | sub base_dir { | |
77 | return $basedir; | |
78 | } | |
79 | ||
80 | sub auth_dir { | |
81 | return $authdir; | |
82 | } | |
83 | ||
84 | sub check_cfs_quorum { | |
85 | my ($noerr) = @_; | |
86 | ||
87 | # note: -w filename always return 1 for root, so wee need | |
88 | # to use File::lstat here | |
89 | my $st = File::stat::lstat("$basedir/local"); | |
90 | my $quorate = ($st && (($st->mode & 0200) != 0)); | |
91 | ||
92 | die "cluster not ready - no quorum?\n" if !$quorate && !$noerr; | |
93 | ||
94 | return $quorate; | |
95 | } | |
96 | ||
97 | sub check_cfs_is_mounted { | |
98 | my ($noerr) = @_; | |
99 | ||
100 | my $res = -l "$basedir/local"; | |
101 | ||
102 | die "pve configuration filesystem not mounted\n" | |
103 | if !$res && !$noerr; | |
104 | ||
105 | return $res; | |
106 | } | |
107 | ||
108 | my $versions = {}; | |
109 | my $vmlist = {}; | |
110 | my $clinfo = {}; | |
111 | ||
112 | my $ipcc_send_rec = sub { | |
113 | my ($msgid, $data) = @_; | |
114 | ||
115 | my $res = PVE::IPCC::ipcc_send_rec($msgid, $data); | |
116 | ||
117 | die "ipcc_send_rec[$msgid] failed: $!\n" if !defined($res) && ($! != 0); | |
118 | ||
119 | return $res; | |
120 | }; | |
121 | ||
122 | my $ipcc_send_rec_json = sub { | |
123 | my ($msgid, $data) = @_; | |
124 | ||
125 | my $res = PVE::IPCC::ipcc_send_rec($msgid, $data); | |
126 | ||
127 | die "ipcc_send_rec[$msgid] failed: $!\n" if !defined($res) && ($! != 0); | |
128 | ||
129 | return decode_json($res); | |
130 | }; | |
131 | ||
132 | my $ipcc_get_config = sub { | |
133 | my ($path) = @_; | |
134 | ||
135 | my $bindata = pack "Z*", $path; | |
136 | my $res = PVE::IPCC::ipcc_send_rec(CFS_IPC_GET_CONFIG, $bindata); | |
137 | if (!defined($res)) { | |
138 | if ($! != 0) { | |
139 | return undef if $! == ENOENT; | |
140 | die "$!\n"; | |
141 | } | |
142 | return ''; | |
143 | } | |
144 | ||
145 | return $res; | |
146 | }; | |
147 | ||
148 | my $ipcc_get_status = sub { | |
149 | my ($name, $nodename) = @_; | |
150 | ||
151 | my $bindata = pack "Z[256]Z[256]", $name, ($nodename || ""); | |
152 | return PVE::IPCC::ipcc_send_rec(CFS_IPC_GET_STATUS, $bindata); | |
153 | }; | |
154 | ||
155 | my $ipcc_remove_status = sub { | |
156 | my ($name) = @_; | |
157 | # we just omit the data payload, pmxcfs takes this as hint and removes this | |
158 | # key from the status hashtable | |
159 | my $bindata = pack "Z[256]", $name; | |
160 | return &$ipcc_send_rec(CFS_IPC_SET_STATUS, $bindata); | |
161 | }; | |
162 | ||
163 | my $ipcc_update_status = sub { | |
164 | my ($name, $data) = @_; | |
165 | ||
166 | my $raw = ref($data) ? encode_json($data) : $data; | |
167 | # update status | |
168 | my $bindata = pack "Z[256]Z*", $name, $raw; | |
169 | ||
170 | return &$ipcc_send_rec(CFS_IPC_SET_STATUS, $bindata); | |
171 | }; | |
172 | ||
173 | my $ipcc_log = sub { | |
174 | my ($priority, $ident, $tag, $msg) = @_; | |
175 | ||
176 | my $bindata = pack "CCCZ*Z*Z*", $priority, bytes::length($ident) + 1, | |
177 | bytes::length($tag) + 1, $ident, $tag, $msg; | |
178 | ||
179 | return &$ipcc_send_rec(CFS_IPC_LOG_CLUSTER_MSG, $bindata); | |
180 | }; | |
181 | ||
182 | my $ipcc_get_cluster_log = sub { | |
183 | my ($user, $max) = @_; | |
184 | ||
185 | $max = 0 if !defined($max); | |
186 | ||
187 | my $bindata = pack "VVVVZ*", $max, 0, 0, 0, ($user || ""); | |
188 | return &$ipcc_send_rec(CFS_IPC_GET_CLUSTER_LOG, $bindata); | |
189 | }; | |
190 | ||
191 | my $ipcc_verify_token = sub { | |
192 | my ($full_token) = @_; | |
193 | ||
194 | my $bindata = pack "Z*", $full_token; | |
195 | my $res = PVE::IPCC::ipcc_send_rec(CFS_IPC_VERIFY_TOKEN, $bindata); | |
196 | ||
197 | return 1 if $! == 0; | |
198 | return 0 if $! == ENOENT; | |
199 | ||
200 | die "$!\n"; | |
201 | }; | |
202 | ||
203 | my $ccache = {}; | |
204 | ||
205 | sub cfs_update { | |
206 | my ($fail) = @_; | |
207 | eval { | |
208 | my $res = &$ipcc_send_rec_json(CFS_IPC_GET_FS_VERSION); | |
209 | die "no starttime\n" if !$res->{starttime}; | |
210 | ||
211 | if (!$res->{starttime} || !$versions->{starttime} || | |
212 | $res->{starttime} != $versions->{starttime}) { | |
213 | #print "detected changed starttime\n"; | |
214 | $vmlist = {}; | |
215 | $clinfo = {}; | |
216 | $ccache = {}; | |
217 | } | |
218 | ||
219 | $versions = $res; | |
220 | }; | |
221 | my $err = $@; | |
222 | if ($err) { | |
223 | $versions = {}; | |
224 | $vmlist = {}; | |
225 | $clinfo = {}; | |
226 | $ccache = {}; | |
227 | die $err if $fail; | |
228 | warn $err; | |
229 | } | |
230 | ||
231 | eval { | |
232 | if (!$clinfo->{version} || $clinfo->{version} != $versions->{clinfo}) { | |
233 | #warn "detected new clinfo\n"; | |
234 | $clinfo = &$ipcc_send_rec_json(CFS_IPC_GET_CLUSTER_INFO); | |
235 | } | |
236 | }; | |
237 | $err = $@; | |
238 | if ($err) { | |
239 | $clinfo = {}; | |
240 | die $err if $fail; | |
241 | warn $err; | |
242 | } | |
243 | ||
244 | eval { | |
245 | if (!$vmlist->{version} || $vmlist->{version} != $versions->{vmlist}) { | |
246 | #warn "detected new vmlist1\n"; | |
247 | $vmlist = &$ipcc_send_rec_json(CFS_IPC_GET_GUEST_LIST); | |
248 | } | |
249 | }; | |
250 | $err = $@; | |
251 | if ($err) { | |
252 | $vmlist = {}; | |
253 | die $err if $fail; | |
254 | warn $err; | |
255 | } | |
256 | } | |
257 | ||
258 | sub get_vmlist { | |
259 | return $vmlist; | |
260 | } | |
261 | ||
262 | sub get_clinfo { | |
263 | return $clinfo; | |
264 | } | |
265 | ||
266 | sub get_members { | |
267 | return $clinfo->{nodelist}; | |
268 | } | |
269 | ||
270 | sub get_nodelist { | |
271 | my $nodelist = $clinfo->{nodelist}; | |
272 | ||
273 | my $nodename = PVE::INotify::nodename(); | |
274 | ||
275 | if (!$nodelist || !$nodelist->{$nodename}) { | |
276 | return [ $nodename ]; | |
277 | } | |
278 | ||
279 | return [ keys %$nodelist ]; | |
280 | } | |
281 | ||
282 | # only stored in a in-memory hashtable inside pmxcfs, local data is gone after | |
283 | # a restart (of pmxcfs or the node), peer data is still available then | |
284 | # best used for status data, like running (ceph) services, package versions, ... | |
285 | sub broadcast_node_kv { | |
286 | my ($key, $data) = @_; | |
287 | ||
288 | if (!defined($data)) { | |
289 | eval { | |
290 | $ipcc_remove_status->("kv/$key"); | |
291 | }; | |
292 | } else { | |
293 | die "cannot send a reference\n" if ref($data); | |
294 | my $size = length($data); | |
295 | die "data for '$key' too big\n" if $size >= (32 * 1024); # limit from pmxfs | |
296 | ||
297 | eval { | |
298 | $ipcc_update_status->("kv/$key", $data); | |
299 | }; | |
300 | } | |
301 | ||
302 | warn $@ if $@; | |
303 | } | |
304 | ||
305 | # nodename is optional | |
306 | sub get_node_kv { | |
307 | my ($key, $nodename) = @_; | |
308 | ||
309 | my $res = {}; | |
310 | my $get_node_data = sub { | |
311 | my ($node) = @_; | |
312 | my $raw = $ipcc_get_status->("kv/$key", $node); | |
313 | $res->{$node} = unpack("Z*", $raw) if $raw; | |
314 | }; | |
315 | ||
316 | if ($nodename) { | |
317 | $get_node_data->($nodename); | |
318 | } else { | |
319 | my $nodelist = get_nodelist(); | |
320 | ||
321 | foreach my $node (@$nodelist) { | |
322 | $get_node_data->($node); | |
323 | } | |
324 | } | |
325 | ||
326 | return $res; | |
327 | } | |
328 | ||
329 | # property: a config property you want to get, e.g., this is perfect to get | |
330 | # the 'lock' entry of a guest _fast_ (>100 faster than manual parsing here) | |
331 | # vmid: optipnal, if a valid is passed we only check that one, else return all | |
332 | # NOTE: does *not* searches snapshot and PENDING entries sections! | |
333 | sub get_guest_config_property { | |
334 | my ($property, $vmid) = @_; | |
335 | ||
336 | die "property is required" if !defined($property); | |
337 | ||
338 | my $bindata = pack "VZ*", $vmid // 0, $property; | |
339 | my $res = $ipcc_send_rec_json->(CFS_IPC_GET_GUEST_CONFIG_PROPERTY, $bindata); | |
340 | ||
341 | return $res; | |
342 | } | |
343 | ||
344 | # $data must be a chronological descending ordered array of tasks | |
345 | sub broadcast_tasklist { | |
346 | my ($data) = @_; | |
347 | ||
348 | # the serialized list may not get bigger than 32kb (CFS_MAX_STATUS_SIZE | |
349 | # from pmxcfs) - drop older items until we satisfy this constraint | |
350 | my $size = length(encode_json($data)); | |
351 | while ($size >= (32 * 1024)) { | |
352 | pop @$data; | |
353 | $size = length(encode_json($data)); | |
354 | } | |
355 | ||
356 | eval { | |
357 | &$ipcc_update_status("tasklist", $data); | |
358 | }; | |
359 | ||
360 | warn $@ if $@; | |
361 | } | |
362 | ||
363 | my $tasklistcache = {}; | |
364 | ||
365 | sub get_tasklist { | |
366 | my ($nodename) = @_; | |
367 | ||
368 | my $kvstore = $versions->{kvstore} || {}; | |
369 | ||
370 | my $nodelist = get_nodelist(); | |
371 | ||
372 | my $res = []; | |
373 | foreach my $node (@$nodelist) { | |
374 | next if $nodename && ($nodename ne $node); | |
375 | eval { | |
376 | my $ver = $kvstore->{$node}->{tasklist} if $kvstore->{$node}; | |
377 | my $cd = $tasklistcache->{$node}; | |
378 | if (!$cd || !$ver || !$cd->{version} || | |
379 | ($cd->{version} != $ver)) { | |
380 | my $raw = &$ipcc_get_status("tasklist", $node) || '[]'; | |
381 | my $data = decode_json($raw); | |
382 | push @$res, @$data; | |
383 | $cd = $tasklistcache->{$node} = { | |
384 | data => $data, | |
385 | version => $ver, | |
386 | }; | |
387 | } elsif ($cd && $cd->{data}) { | |
388 | push @$res, @{$cd->{data}}; | |
389 | } | |
390 | }; | |
391 | my $err = $@; | |
392 | syslog('err', $err) if $err; | |
393 | } | |
394 | ||
395 | return $res; | |
396 | } | |
397 | ||
398 | sub broadcast_rrd { | |
399 | my ($rrdid, $data) = @_; | |
400 | ||
401 | eval { | |
402 | &$ipcc_update_status("rrd/$rrdid", $data); | |
403 | }; | |
404 | my $err = $@; | |
405 | ||
406 | warn $err if $err; | |
407 | } | |
408 | ||
409 | my $last_rrd_dump = 0; | |
410 | my $last_rrd_data = ""; | |
411 | ||
412 | sub rrd_dump { | |
413 | ||
414 | my $ctime = time(); | |
415 | ||
416 | my $diff = $ctime - $last_rrd_dump; | |
417 | if ($diff < 2) { | |
418 | return $last_rrd_data; | |
419 | } | |
420 | ||
421 | my $raw; | |
422 | eval { | |
423 | $raw = &$ipcc_send_rec(CFS_IPC_GET_RRD_DUMP); | |
424 | }; | |
425 | my $err = $@; | |
426 | ||
427 | if ($err) { | |
428 | warn $err; | |
429 | return {}; | |
430 | } | |
431 | ||
432 | my $res = {}; | |
433 | ||
434 | if ($raw) { | |
435 | while ($raw =~ s/^(.*)\n//) { | |
436 | my ($key, @ela) = split(/:/, $1); | |
437 | next if !$key; | |
438 | next if !(scalar(@ela) > 1); | |
439 | $res->{$key} = [ map { $_ eq 'U' ? undef : $_ } @ela ]; | |
440 | } | |
441 | } | |
442 | ||
443 | $last_rrd_dump = $ctime; | |
444 | $last_rrd_data = $res; | |
445 | ||
446 | return $res; | |
447 | } | |
448 | ||
449 | ||
450 | # a fast way to read files (avoid fuse overhead) | |
451 | sub get_config { | |
452 | my ($path) = @_; | |
453 | ||
454 | return &$ipcc_get_config($path); | |
455 | } | |
456 | ||
457 | sub get_cluster_log { | |
458 | my ($user, $max) = @_; | |
459 | ||
460 | return &$ipcc_get_cluster_log($user, $max); | |
461 | } | |
462 | ||
463 | sub verify_token { | |
464 | my ($userid, $token) = @_; | |
465 | ||
466 | return &$ipcc_verify_token("$userid $token"); | |
467 | } | |
468 | ||
469 | my $file_info = {}; | |
470 | ||
471 | sub cfs_register_file { | |
472 | my ($filename, $parser, $writer) = @_; | |
473 | ||
474 | $observed->{$filename} || die "unknown file '$filename'"; | |
475 | ||
476 | die "file '$filename' already registered" if $file_info->{$filename}; | |
477 | ||
478 | $file_info->{$filename} = { | |
479 | parser => $parser, | |
480 | writer => $writer, | |
481 | }; | |
482 | } | |
483 | ||
484 | my $ccache_read = sub { | |
485 | my ($filename, $parser, $version) = @_; | |
486 | ||
487 | $ccache->{$filename} = {} if !$ccache->{$filename}; | |
488 | ||
489 | my $ci = $ccache->{$filename}; | |
490 | ||
491 | if (!$ci->{version} || !$version || $ci->{version} != $version) { | |
492 | # we always call the parser, even when the file does not exist | |
493 | # (in that case $data is undef) | |
494 | my $data = get_config($filename); | |
495 | $ci->{data} = &$parser("/etc/pve/$filename", $data); | |
496 | $ci->{version} = $version; | |
497 | } | |
498 | ||
499 | my $res = ref($ci->{data}) ? dclone($ci->{data}) : $ci->{data}; | |
500 | ||
501 | return $res; | |
502 | }; | |
503 | ||
504 | sub cfs_file_version { | |
505 | my ($filename) = @_; | |
506 | ||
507 | my $version; | |
508 | my $infotag; | |
509 | if ($filename =~ m!^nodes/[^/]+/(openvz|lxc|qemu-server)/(\d+)\.conf$!) { | |
510 | my ($type, $vmid) = ($1, $2); | |
511 | if ($vmlist && $vmlist->{ids} && $vmlist->{ids}->{$vmid}) { | |
512 | $version = $vmlist->{ids}->{$vmid}->{version}; | |
513 | } | |
514 | $infotag = "/$type/"; | |
515 | } else { | |
516 | $infotag = $filename; | |
517 | $version = $versions->{$filename}; | |
518 | } | |
519 | ||
520 | my $info = $file_info->{$infotag} || | |
521 | die "unknown file type '$filename'\n"; | |
522 | ||
523 | return wantarray ? ($version, $info) : $version; | |
524 | } | |
525 | ||
526 | sub cfs_read_file { | |
527 | my ($filename) = @_; | |
528 | ||
529 | my ($version, $info) = cfs_file_version($filename); | |
530 | my $parser = $info->{parser}; | |
531 | ||
532 | return &$ccache_read($filename, $parser, $version); | |
533 | } | |
534 | ||
535 | sub cfs_write_file { | |
536 | my ($filename, $data) = @_; | |
537 | ||
538 | my ($version, $info) = cfs_file_version($filename); | |
539 | ||
540 | my $writer = $info->{writer} || die "no writer defined"; | |
541 | ||
542 | my $fsname = "/etc/pve/$filename"; | |
543 | ||
544 | my $raw = &$writer($fsname, $data); | |
545 | ||
546 | if (my $ci = $ccache->{$filename}) { | |
547 | $ci->{version} = undef; | |
548 | } | |
549 | ||
550 | PVE::Tools::file_set_contents($fsname, $raw); | |
551 | } | |
552 | ||
553 | my $cfs_lock = sub { | |
554 | my ($lockid, $timeout, $code, @param) = @_; | |
555 | ||
556 | my $prev_alarm = alarm(0); # suspend outer alarm early | |
557 | ||
558 | my $res; | |
559 | my $got_lock = 0; | |
560 | ||
561 | # this timeout is for acquire the lock | |
562 | $timeout = 10 if !$timeout; | |
563 | ||
564 | my $filename = "$lockdir/$lockid"; | |
565 | ||
566 | eval { | |
567 | ||
568 | mkdir $lockdir; | |
569 | ||
570 | if (! -d $lockdir) { | |
571 | die "pve cluster filesystem not online.\n"; | |
572 | } | |
573 | ||
574 | my $timeout_err = sub { die "got lock request timeout\n"; }; | |
575 | local $SIG{ALRM} = $timeout_err; | |
576 | ||
577 | while (1) { | |
578 | alarm ($timeout); | |
579 | $got_lock = mkdir($filename); | |
580 | $timeout = alarm(0) - 1; # we'll sleep for 1s, see down below | |
581 | ||
582 | last if $got_lock; | |
583 | ||
584 | $timeout_err->() if $timeout <= 0; | |
585 | ||
586 | print STDERR "trying to acquire cfs lock '$lockid' ...\n"; | |
587 | utime (0, 0, $filename); # cfs unlock request | |
588 | sleep(1); | |
589 | } | |
590 | ||
591 | # fixed command timeout: cfs locks have a timeout of 120 | |
592 | # using 60 gives us another 60 seconds to abort the task | |
593 | local $SIG{ALRM} = sub { die "got lock timeout - aborting command\n"; }; | |
594 | alarm(60); | |
595 | ||
596 | cfs_update(); # make sure we read latest versions inside code() | |
597 | ||
598 | $res = &$code(@param); | |
599 | ||
600 | alarm(0); | |
601 | }; | |
602 | ||
603 | my $err = $@; | |
604 | ||
605 | $err = "no quorum!\n" if !$got_lock && !check_cfs_quorum(1); | |
606 | ||
607 | rmdir $filename if $got_lock; # if we held the lock always unlock again | |
608 | ||
609 | alarm($prev_alarm); | |
610 | ||
611 | if ($err) { | |
612 | $@ = "error with cfs lock '$lockid': $err"; | |
613 | return undef; | |
614 | } | |
615 | ||
616 | $@ = undef; | |
617 | ||
618 | return $res; | |
619 | }; | |
620 | ||
621 | sub cfs_lock_file { | |
622 | my ($filename, $timeout, $code, @param) = @_; | |
623 | ||
624 | my $info = $observed->{$filename} || die "unknown file '$filename'"; | |
625 | ||
626 | my $lockid = "file-$filename"; | |
627 | $lockid =~ s/[.\/]/_/g; | |
628 | ||
629 | &$cfs_lock($lockid, $timeout, $code, @param); | |
630 | } | |
631 | ||
632 | sub cfs_lock_storage { | |
633 | my ($storeid, $timeout, $code, @param) = @_; | |
634 | ||
635 | my $lockid = "storage-$storeid"; | |
636 | ||
637 | &$cfs_lock($lockid, $timeout, $code, @param); | |
638 | } | |
639 | ||
640 | sub cfs_lock_domain { | |
641 | my ($domainname, $timeout, $code, @param) = @_; | |
642 | ||
643 | my $lockid = "domain-$domainname"; | |
644 | ||
645 | &$cfs_lock($lockid, $timeout, $code, @param); | |
646 | } | |
647 | ||
648 | sub cfs_lock_acme { | |
649 | my ($account, $timeout, $code, @param) = @_; | |
650 | ||
651 | my $lockid = "acme-$account"; | |
652 | ||
653 | &$cfs_lock($lockid, $timeout, $code, @param); | |
654 | } | |
655 | ||
656 | sub cfs_lock_authkey { | |
657 | my ($timeout, $code, @param) = @_; | |
658 | ||
659 | $cfs_lock->('authkey', $timeout, $code, @param); | |
660 | } | |
661 | ||
662 | my $log_levels = { | |
663 | "emerg" => 0, | |
664 | "alert" => 1, | |
665 | "crit" => 2, | |
666 | "critical" => 2, | |
667 | "err" => 3, | |
668 | "error" => 3, | |
669 | "warn" => 4, | |
670 | "warning" => 4, | |
671 | "notice" => 5, | |
672 | "info" => 6, | |
673 | "debug" => 7, | |
674 | }; | |
675 | ||
676 | sub log_msg { | |
677 | my ($priority, $ident, $msg) = @_; | |
678 | ||
679 | if (my $tmp = $log_levels->{$priority}) { | |
680 | $priority = $tmp; | |
681 | } | |
682 | ||
683 | die "need numeric log priority" if $priority !~ /^\d+$/; | |
684 | ||
685 | my $tag = PVE::SafeSyslog::tag(); | |
686 | ||
687 | $msg = "empty message" if !$msg; | |
688 | ||
689 | $ident = "" if !$ident; | |
690 | $ident = encode("ascii", $ident, | |
691 | sub { sprintf "\\u%04x", shift }); | |
692 | ||
693 | my $ascii = encode("ascii", $msg, sub { sprintf "\\u%04x", shift }); | |
694 | ||
695 | if ($ident) { | |
696 | syslog($priority, "<%s> %s", $ident, $ascii); | |
697 | } else { | |
698 | syslog($priority, "%s", $ascii); | |
699 | } | |
700 | ||
701 | eval { &$ipcc_log($priority, $ident, $tag, $ascii); }; | |
702 | ||
703 | syslog("err", "writing cluster log failed: $@") if $@; | |
704 | } | |
705 | ||
706 | sub check_vmid_unused { | |
707 | my ($vmid, $noerr) = @_; | |
708 | ||
709 | my $vmlist = get_vmlist(); | |
710 | ||
711 | my $d = $vmlist->{ids}->{$vmid}; | |
712 | return 1 if !defined($d); | |
713 | ||
714 | return undef if $noerr; | |
715 | ||
716 | my $vmtypestr = $d->{type} eq 'qemu' ? 'VM' : 'CT'; | |
717 | die "$vmtypestr $vmid already exists on node '$d->{node}'\n"; | |
718 | } | |
719 | ||
720 | sub check_node_exists { | |
721 | my ($nodename, $noerr) = @_; | |
722 | ||
723 | my $nodelist = $clinfo->{nodelist}; | |
724 | return 1 if $nodelist && $nodelist->{$nodename}; | |
725 | ||
726 | return undef if $noerr; | |
727 | ||
728 | die "no such cluster node '$nodename'\n"; | |
729 | } | |
730 | ||
731 | # this is also used to get the IP of the local node | |
732 | sub remote_node_ip { | |
733 | my ($nodename, $noerr) = @_; | |
734 | ||
735 | my $nodelist = $clinfo->{nodelist}; | |
736 | if ($nodelist && $nodelist->{$nodename}) { | |
737 | if (my $ip = $nodelist->{$nodename}->{ip}) { | |
738 | return $ip if !wantarray; | |
739 | my $family = $nodelist->{$nodename}->{address_family}; | |
740 | if (!$family) { | |
741 | $nodelist->{$nodename}->{address_family} = | |
742 | $family = | |
743 | PVE::Tools::get_host_address_family($ip); | |
744 | } | |
745 | return wantarray ? ($ip, $family) : $ip; | |
746 | } | |
747 | } | |
748 | ||
749 | # fallback: try to get IP by other means | |
750 | return PVE::Network::get_ip_from_hostname($nodename, $noerr); | |
751 | } | |
752 | ||
753 | sub get_node_fingerprint { | |
754 | my ($node) = @_; | |
755 | ||
756 | my $cert_path = "/etc/pve/nodes/$node/pve-ssl.pem"; | |
757 | my $custom_cert_path = "/etc/pve/nodes/$node/pveproxy-ssl.pem"; | |
758 | ||
759 | $cert_path = $custom_cert_path if -f $custom_cert_path; | |
760 | ||
761 | return PVE::Certificate::get_certificate_fingerprint($cert_path); | |
762 | } | |
763 | ||
764 | # bash completion helpers | |
765 | ||
766 | sub complete_next_vmid { | |
767 | ||
768 | my $vmlist = get_vmlist() || {}; | |
769 | my $idlist = $vmlist->{ids} || {}; | |
770 | ||
771 | for (my $i = 100; $i < 10000; $i++) { | |
772 | return [$i] if !defined($idlist->{$i}); | |
773 | } | |
774 | ||
775 | return []; | |
776 | } | |
777 | ||
778 | sub complete_vmid { | |
779 | ||
780 | my $vmlist = get_vmlist(); | |
781 | my $ids = $vmlist->{ids} || {}; | |
782 | ||
783 | return [ keys %$ids ]; | |
784 | } | |
785 | ||
786 | sub complete_local_vmid { | |
787 | ||
788 | my $vmlist = get_vmlist(); | |
789 | my $ids = $vmlist->{ids} || {}; | |
790 | ||
791 | my $nodename = PVE::INotify::nodename(); | |
792 | ||
793 | my $res = []; | |
794 | foreach my $vmid (keys %$ids) { | |
795 | my $d = $ids->{$vmid}; | |
796 | next if !$d->{node} || $d->{node} ne $nodename; | |
797 | push @$res, $vmid; | |
798 | } | |
799 | ||
800 | return $res; | |
801 | } | |
802 | ||
803 | sub complete_migration_target { | |
804 | ||
805 | my $res = []; | |
806 | ||
807 | my $nodename = PVE::INotify::nodename(); | |
808 | ||
809 | my $nodelist = get_nodelist(); | |
810 | foreach my $node (@$nodelist) { | |
811 | next if $node eq $nodename; | |
812 | push @$res, $node; | |
813 | } | |
814 | ||
815 | return $res; | |
816 | } | |
817 | ||
818 | ||
819 | # NOTE: filesystem must be offline here, no DB changes allowed | |
820 | sub cfs_backup_database { | |
821 | mkdir $dbbackupdir; | |
822 | ||
823 | my $ctime = time(); | |
824 | my $backup_fn = "$dbbackupdir/config-$ctime.sql.gz"; | |
825 | ||
826 | print "backup old database to '$backup_fn'\n"; | |
827 | ||
828 | my $cmd = [ ['sqlite3', $dbfile, '.dump'], ['gzip', '-', \ ">${backup_fn}"] ]; | |
829 | run_command($cmd, 'errmsg' => "cannot backup old database\n"); | |
830 | ||
831 | my $maxfiles = 10; # purge older backup | |
832 | my $backups = [ sort { $b cmp $a } <$dbbackupdir/config-*.sql.gz> ]; | |
833 | ||
834 | if ((my $count = scalar(@$backups)) > $maxfiles) { | |
835 | foreach my $f (@$backups[$maxfiles..$count-1]) { | |
836 | next if $f !~ m/^(\S+)$/; # untaint | |
837 | print "delete old backup '$1'\n"; | |
838 | unlink $1; | |
839 | } | |
840 | } | |
841 | ||
842 | return $dbfile; | |
843 | } | |
844 | ||
845 | 1; |