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d9072797 DM |
1 | package PVE::RESTEnvironment; |
2 | ||
3 | # NOTE: you can/should provide your own specialice class, and | |
4 | # use this a bas class (as example see PVE::RPCEnvironment). | |
5 | ||
6 | # we use this singleton class to pass RPC related environment values | |
7 | ||
8 | use strict; | |
9 | use warnings; | |
2531c455 | 10 | |
cc78c1eb | 11 | use Exporter qw(import); |
2531c455 | 12 | use Fcntl qw(:flock); |
d9072797 | 13 | use IO::File; |
2531c455 | 14 | use IO::Handle; |
d9072797 | 15 | use IO::Select; |
2531c455 | 16 | use POSIX qw(:sys_wait_h EINTR); |
6870afa4 | 17 | use AnyEvent; |
2531c455 | 18 | |
d9072797 | 19 | use PVE::Exception qw(raise raise_perm_exc); |
d9072797 DM |
20 | use PVE::INotify; |
21 | use PVE::ProcFSTools; | |
2531c455 TL |
22 | use PVE::SafeSyslog; |
23 | use PVE::Tools; | |
d9072797 | 24 | |
cc78c1eb FE |
25 | our @EXPORT_OK = qw(log_warn); |
26 | ||
d9072797 DM |
27 | my $rest_env; |
28 | ||
29 | # save $SIG{CHLD} handler implementation. | |
30 | # simply set $SIG{CHLD} = $worker_reaper; | |
31 | # and register forked processes with &$register_worker(pid) | |
32 | # Note: using $SIG{CHLD} = 'IGNORE' or $SIG{CHLD} = sub { wait (); } or ... | |
33 | # has serious side effects, because perls built in system() and open() | |
fb3a1b29 | 34 | # functions can't get the correct exit status of a child. So we can't use |
d9072797 DM |
35 | # that (also see perlipc) |
36 | ||
37 | my $WORKER_PIDS; | |
38 | my $WORKER_FLAG = 0; | |
39 | ||
40 | my $log_task_result = sub { | |
41 | my ($upid, $user, $status) = @_; | |
42 | ||
43 | return if !$rest_env; | |
44 | ||
45 | my $msg = 'successful'; | |
46 | my $pri = 'info'; | |
47 | if ($status != 0) { | |
48 | my $ec = $status >> 8; | |
49 | my $ic = $status & 255; | |
50 | $msg = $ec ? "failed ($ec)" : "interrupted ($ic)"; | |
51 | $pri = 'err'; | |
52 | } | |
53 | ||
54 | my $tlist = $rest_env->active_workers($upid); | |
9a42d8a2 TL |
55 | eval { $rest_env->broadcast_tasklist($tlist); }; |
56 | syslog('err', $@) if $@; | |
d9072797 DM |
57 | |
58 | my $task; | |
59 | foreach my $t (@$tlist) { | |
60 | if ($t->{upid} eq $upid) { | |
61 | $task = $t; | |
62 | last; | |
63 | } | |
64 | } | |
65 | if ($task && $task->{status}) { | |
66 | $msg = $task->{status}; | |
67 | } | |
68 | ||
ad7962b4 | 69 | $rest_env->log_cluster_msg($pri, $user, "end task $upid $msg"); |
d9072797 DM |
70 | }; |
71 | ||
72 | my $worker_reaper = sub { | |
73 | local $!; local $?; | |
74 | foreach my $pid (keys %$WORKER_PIDS) { | |
75 | my $waitpid = waitpid ($pid, WNOHANG); | |
76 | if (defined($waitpid) && ($waitpid == $pid)) { | |
77 | my $info = $WORKER_PIDS->{$pid}; | |
78 | if ($info && $info->{upid} && $info->{user}) { | |
79 | &$log_task_result($info->{upid}, $info->{user}, $?); | |
80 | } | |
81 | delete ($WORKER_PIDS->{$pid}); | |
82 | } | |
83 | } | |
84 | }; | |
85 | ||
86 | my $register_worker = sub { | |
87 | my ($pid, $user, $upid) = @_; | |
88 | ||
89 | return if !$pid; | |
90 | ||
91 | # do not register if already finished | |
92 | my $waitpid = waitpid ($pid, WNOHANG); | |
93 | if (defined($waitpid) && ($waitpid == $pid)) { | |
94 | delete ($WORKER_PIDS->{$pid}); | |
95 | return; | |
96 | } | |
97 | ||
98 | $WORKER_PIDS->{$pid} = { | |
99 | user => $user, | |
100 | upid => $upid, | |
101 | }; | |
102 | }; | |
103 | ||
104 | # initialize environment - must be called once at program startup | |
105 | sub init { | |
106 | my ($class, $type, %params) = @_; | |
107 | ||
108 | $class = ref($class) || $class; | |
109 | ||
110 | die "already initialized" if $rest_env; | |
111 | ||
112 | die "unknown environment type" | |
113 | if !$type || $type !~ m/^(cli|pub|priv|ha)$/; | |
114 | ||
6870afa4 | 115 | $SIG{CHLD} = sub { |
a0bae1b6 | 116 | # when we're using AnyEvent, we have to postpone the call to worker_reaper, otherwise it |
6870afa4 | 117 | # might interfere with running api calls |
a0bae1b6 | 118 | if (defined($AnyEvent::MODEL)) { |
6870afa4 DC |
119 | AnyEvent::postpone { $worker_reaper->() }; |
120 | } else { | |
121 | $worker_reaper->(); | |
122 | } | |
123 | }; | |
d9072797 DM |
124 | |
125 | # environment types | |
126 | # cli ... command started fron command line | |
096b5f5c | 127 | # pub ... access from public server (pveproxy) |
d9072797 | 128 | # priv ... access from private server (pvedaemon) |
096b5f5c | 129 | # ha ... access from HA resource manager agent (pve-ha-manager) |
d9072797 | 130 | |
ff79ee65 FE |
131 | my $self = { |
132 | type => $type, | |
133 | warning_count => 0, | |
134 | }; | |
d9072797 DM |
135 | |
136 | bless $self, $class; | |
137 | ||
138 | foreach my $p (keys %params) { | |
139 | if ($p eq 'atfork') { | |
140 | $self->{$p} = $params{$p}; | |
141 | } else { | |
142 | die "unknown option '$p'"; | |
143 | } | |
144 | } | |
145 | ||
146 | $rest_env = $self; | |
147 | ||
148 | my ($sysname, $nodename) = POSIX::uname(); | |
149 | ||
150 | $nodename =~ s/\..*$//; # strip domain part, if any | |
151 | ||
152 | $self->{nodename} = $nodename; | |
153 | ||
154 | return $self; | |
155 | }; | |
156 | ||
157 | # convenience function for command line tools | |
158 | sub setup_default_cli_env { | |
159 | my ($class, $username) = @_; | |
160 | ||
161 | $class = ref($class) || $class; | |
162 | ||
163 | $username //= 'root@pam'; | |
164 | ||
165 | PVE::INotify::inotify_init(); | |
166 | ||
167 | my $rpcenv = $class->init('cli'); | |
168 | $rpcenv->init_request(); | |
169 | $rpcenv->set_language($ENV{LANG}); | |
170 | $rpcenv->set_user($username); | |
171 | ||
172 | die "please run as root\n" | |
173 | if ($username eq 'root@pam') && ($> != 0); | |
174 | } | |
175 | ||
176 | # get the singleton | |
177 | sub get { | |
178 | ||
179 | die "REST environment not initialized" if !$rest_env; | |
180 | ||
181 | return $rest_env; | |
182 | } | |
183 | ||
184 | sub set_client_ip { | |
185 | my ($self, $ip) = @_; | |
186 | ||
187 | $self->{client_ip} = $ip; | |
188 | } | |
189 | ||
190 | sub get_client_ip { | |
191 | my ($self) = @_; | |
192 | ||
193 | return $self->{client_ip}; | |
194 | } | |
195 | ||
196 | sub set_result_attrib { | |
197 | my ($self, $key, $value) = @_; | |
198 | ||
199 | $self->{result_attributes}->{$key} = $value; | |
200 | } | |
201 | ||
202 | sub get_result_attrib { | |
203 | my ($self, $key) = @_; | |
204 | ||
205 | return $self->{result_attributes}->{$key}; | |
206 | } | |
207 | ||
208 | sub set_language { | |
209 | my ($self, $lang) = @_; | |
210 | ||
211 | # fixme: initialize I18N | |
212 | ||
213 | $self->{language} = $lang; | |
214 | } | |
215 | ||
216 | sub get_language { | |
217 | my ($self) = @_; | |
218 | ||
219 | return $self->{language}; | |
220 | } | |
221 | ||
222 | sub set_user { | |
223 | my ($self, $user) = @_; | |
224 | ||
225 | $self->{user} = $user; | |
226 | } | |
227 | ||
228 | sub get_user { | |
8e6019b1 | 229 | my ($self, $noerr) = @_; |
d9072797 | 230 | |
8e6019b1 | 231 | return $self->{user} if defined($self->{user}) || $noerr; |
d9072797 | 232 | |
8e6019b1 | 233 | die "user name not set\n"; |
d9072797 DM |
234 | } |
235 | ||
61aca93a WB |
236 | sub set_u2f_challenge { |
237 | my ($self, $challenge) = @_; | |
238 | ||
239 | $self->{u2f_challenge} = $challenge; | |
240 | } | |
241 | ||
242 | sub get_u2f_challenge { | |
243 | my ($self, $noerr) = @_; | |
244 | ||
245 | return $self->{u2f_challenge} if defined($self->{u2f_challenge}) || $noerr; | |
246 | ||
247 | die "no active u2f challenge\n"; | |
248 | } | |
249 | ||
c7a7aa4d WB |
250 | sub set_request_host { |
251 | my ($self, $host) = @_; | |
252 | ||
253 | $self->{request_host} = $host; | |
254 | } | |
255 | ||
256 | sub get_request_host { | |
257 | my ($self, $noerr) = @_; | |
258 | ||
259 | return $self->{request_host} if defined($self->{request_host}) || $noerr; | |
260 | ||
261 | die "no hostname available in current environment\n"; | |
262 | } | |
263 | ||
d9072797 DM |
264 | sub is_worker { |
265 | my ($class) = @_; | |
266 | ||
267 | return $WORKER_FLAG; | |
268 | } | |
269 | ||
f74da40e TL |
270 | # read/update list of active workers. |
271 | # | |
272 | # we move all finished tasks to the archive index, but keep active, and most recent tasks in the | |
273 | # active file. | |
274 | # $nocheck ... consider $new_upid still running (avoid that we try to read the result to early). | |
275 | sub active_workers { | |
d9072797 DM |
276 | my ($self, $new_upid, $nocheck) = @_; |
277 | ||
d9072797 DM |
278 | my $timeout = 10; |
279 | ||
f74da40e | 280 | my $res = PVE::Tools::lock_file("/var/log/pve/tasks/.active.lock", $timeout, sub { |
d9072797 DM |
281 | my $tasklist = PVE::INotify::read_file('active'); |
282 | ||
283 | my @ta; | |
284 | my $tlist = []; | |
285 | my $thash = {}; # only list task once | |
286 | ||
287 | my $check_task = sub { | |
288 | my ($task, $running) = @_; | |
289 | ||
290 | if ($running || PVE::ProcFSTools::check_process_running($task->{pid}, $task->{pstart})) { | |
291 | push @$tlist, $task; | |
292 | } else { | |
293 | delete $task->{pid}; | |
294 | push @ta, $task; | |
295 | } | |
296 | delete $task->{pstart}; | |
297 | }; | |
298 | ||
299 | foreach my $task (@$tasklist) { | |
300 | my $upid = $task->{upid}; | |
301 | next if $thash->{$upid}; | |
302 | $thash->{$upid} = $task; | |
303 | &$check_task($task); | |
304 | } | |
305 | ||
f74da40e TL |
306 | if ($new_upid && !$thash->{$new_upid}) { |
307 | my $task = PVE::Tools::upid_decode($new_upid); | |
d9072797 DM |
308 | $task->{upid} = $new_upid; |
309 | $thash->{$new_upid} = $task; | |
310 | &$check_task($task, $nocheck); | |
311 | } | |
312 | ||
313 | ||
8733bb80 | 314 | @ta = sort { $b->{starttime} <=> $a->{starttime} } @ta; |
d9072797 DM |
315 | |
316 | my $save = defined($new_upid); | |
317 | ||
318 | foreach my $task (@ta) { | |
319 | next if $task->{endtime}; | |
320 | $task->{endtime} = time(); | |
321 | $task->{status} = PVE::Tools::upid_read_status($task->{upid}); | |
322 | $save = 1; | |
323 | } | |
324 | ||
325 | my $archive = ''; | |
326 | my @arlist = (); | |
327 | foreach my $task (@ta) { | |
328 | if (!$task->{saved}) { | |
329 | $archive .= sprintf("%s %08X %s\n", $task->{upid}, $task->{endtime}, $task->{status}); | |
330 | $save = 1; | |
331 | push @arlist, $task; | |
332 | $task->{saved} = 1; | |
333 | } | |
334 | } | |
335 | ||
336 | if ($archive) { | |
337 | my $size = 0; | |
338 | my $filename = "/var/log/pve/tasks/index"; | |
339 | eval { | |
340 | my $fh = IO::File->new($filename, '>>', 0644) || | |
341 | die "unable to open file '$filename' - $!\n"; | |
342 | PVE::Tools::safe_print($filename, $fh, $archive); | |
343 | $size = -s $fh; | |
344 | close($fh) || | |
345 | die "unable to close file '$filename' - $!\n"; | |
346 | }; | |
347 | my $err = $@; | |
348 | if ($err) { | |
349 | syslog('err', $err); | |
350 | foreach my $task (@arlist) { # mark as not saved | |
351 | $task->{saved} = 0; | |
352 | } | |
353 | } | |
354 | my $maxsize = 50000; # about 1000 entries | |
355 | if ($size > $maxsize) { | |
356 | rename($filename, "$filename.1"); | |
357 | } | |
358 | } | |
359 | ||
f74da40e TL |
360 | # we try to reduce the amount of data list all running tasks and task and a few others |
361 | my $MAX_FINISHED = 25; | |
362 | my $max = $MAX_FINISHED - scalar(@$tlist); | |
d9072797 DM |
363 | foreach my $task (@ta) { |
364 | last if $max <= 0; | |
365 | push @$tlist, $task; | |
366 | $max--; | |
367 | } | |
368 | ||
369 | PVE::INotify::write_file('active', $tlist) if $save; | |
370 | ||
371 | return $tlist; | |
f74da40e | 372 | }); |
d9072797 DM |
373 | die $@ if $@; |
374 | ||
375 | return $res; | |
376 | } | |
377 | ||
378 | my $kill_process_group = sub { | |
379 | my ($pid, $pstart) = @_; | |
380 | ||
381 | # send kill to process group (negative pid) | |
382 | my $kpid = -$pid; | |
383 | ||
384 | # always send signal to all pgrp members | |
385 | kill(15, $kpid); # send TERM signal | |
386 | ||
387 | # give max 5 seconds to shut down | |
388 | for (my $i = 0; $i < 5; $i++) { | |
389 | return if !PVE::ProcFSTools::check_process_running($pid, $pstart); | |
390 | sleep (1); | |
391 | } | |
392 | ||
393 | # to be sure | |
394 | kill(9, $kpid); | |
395 | }; | |
396 | ||
397 | sub check_worker { | |
a313fe73 | 398 | my ($self, $upid, $killit) = @_; |
d9072797 DM |
399 | |
400 | my $task = PVE::Tools::upid_decode($upid); | |
401 | ||
402 | my $running = PVE::ProcFSTools::check_process_running($task->{pid}, $task->{pstart}); | |
403 | ||
404 | return 0 if !$running; | |
405 | ||
406 | if ($killit) { | |
407 | &$kill_process_group($task->{pid}); | |
408 | return 0; | |
409 | } | |
410 | ||
411 | return 1; | |
412 | } | |
413 | ||
3e2da216 TL |
414 | # acts almost as tee: writes an output both to STDOUT and a task log, |
415 | # we differ as we're worker aware and look also at the childs control pipe, | |
416 | # so we know if the function could be executed successfully or not. | |
417 | my $tee_worker = sub { | |
418 | my ($childfd, $ctrlfd, $taskfh, $cpid) = @_; | |
419 | ||
420 | eval { | |
421 | my $int_count = 0; | |
422 | local $SIG{INT} = local $SIG{QUIT} = local $SIG{TERM} = sub { | |
423 | # always send signal to all pgrp members | |
424 | my $kpid = -$cpid; | |
425 | if ($int_count < 3) { | |
426 | kill(15, $kpid); # send TERM signal | |
427 | } else { | |
428 | kill(9, $kpid); # send KILL signal | |
429 | } | |
430 | $int_count++; | |
431 | }; | |
432 | local $SIG{PIPE} = sub { die "broken pipe\n"; }; | |
433 | ||
967e9823 | 434 | my $select = IO::Select->new(); |
3e2da216 TL |
435 | my $fh = IO::Handle->new_from_fd($childfd, 'r'); |
436 | $select->add($fh); | |
437 | ||
438 | my $readbuf = ''; | |
439 | my $count; | |
440 | while ($select->count) { | |
441 | my @handles = $select->can_read(1); | |
442 | if (scalar(@handles)) { | |
443 | my $count = sysread ($handles[0], $readbuf, 4096); | |
444 | if (!defined ($count)) { | |
445 | my $err = $!; | |
446 | die "sync pipe read error: $err\n"; | |
447 | } | |
448 | last if $count == 0; # eof | |
449 | ||
450 | print $readbuf; | |
451 | select->flush(); | |
452 | ||
453 | print $taskfh $readbuf; | |
454 | $taskfh->flush(); | |
455 | } else { | |
456 | # some commands daemonize without closing stdout | |
457 | last if !PVE::ProcFSTools::check_process_running($cpid); | |
458 | } | |
459 | } | |
460 | ||
3e2da216 TL |
461 | POSIX::read($ctrlfd, $readbuf, 4096); |
462 | if ($readbuf =~ m/^TASK OK\n?$/) { | |
463 | # skip printing to stdout | |
464 | print $taskfh $readbuf; | |
465 | } elsif ($readbuf =~ m/^TASK ERROR: (.*)\n?$/) { | |
466 | print STDERR "$1\n"; | |
467 | print $taskfh "\n$readbuf"; # ensure start on new line for webUI | |
ff79ee65 FE |
468 | } elsif ($readbuf =~ m/^TASK WARNINGS: (\d+)\n?$/) { |
469 | print STDERR "Task finished with $1 warning(s)!\n"; | |
470 | print $taskfh "\n$readbuf"; # ensure start on new line for webUI | |
3e2da216 TL |
471 | } else { |
472 | die "got unexpected control message: $readbuf\n"; | |
473 | } | |
474 | $taskfh->flush(); | |
475 | }; | |
476 | my $err = $@; | |
477 | ||
478 | POSIX::close($childfd); | |
479 | POSIX::close($ctrlfd); | |
480 | ||
481 | if ($err) { | |
482 | $err =~ s/\n/ /mg; | |
483 | print STDERR "$err\n"; | |
484 | print $taskfh "TASK ERROR: $err\n"; | |
485 | } | |
486 | }; | |
487 | ||
d9072797 DM |
488 | # start long running workers |
489 | # STDIN is redirected to /dev/null | |
490 | # STDOUT,STDERR are redirected to the filename returned by upid_decode | |
491 | # NOTE: we simulate running in foreground if ($self->{type} eq 'cli') | |
492 | sub fork_worker { | |
493 | my ($self, $dtype, $id, $user, $function, $background) = @_; | |
494 | ||
495 | $dtype = 'unknown' if !defined ($dtype); | |
496 | $id = '' if !defined ($id); | |
497 | ||
f44838ff OB |
498 | # note: below is only used for the task log entry |
499 | $user = $self->get_user(1) // 'root@pam' if !defined($user); | |
d9072797 DM |
500 | |
501 | my $sync = ($self->{type} eq 'cli' && !$background) ? 1 : 0; | |
502 | ||
503 | local $SIG{INT} = | |
504 | local $SIG{QUIT} = | |
505 | local $SIG{PIPE} = | |
506 | local $SIG{TERM} = 'IGNORE'; | |
507 | ||
508 | my $starttime = time (); | |
509 | ||
510 | my @psync = POSIX::pipe(); | |
511 | my @csync = POSIX::pipe(); | |
967e9823 | 512 | my @ctrlfd = $sync ? POSIX::pipe() : (); |
d9072797 DM |
513 | |
514 | my $node = $self->{nodename}; | |
515 | ||
516 | my $cpid = fork(); | |
517 | die "unable to fork worker - $!" if !defined($cpid); | |
518 | ||
519 | my $workerpuid = $cpid ? $cpid : $$; | |
520 | ||
521 | my $pstart = PVE::ProcFSTools::read_proc_starttime($workerpuid) || | |
522 | die "unable to read process start time"; | |
523 | ||
524 | my $upid = PVE::Tools::upid_encode ({ | |
525 | node => $node, pid => $workerpuid, pstart => $pstart, | |
526 | starttime => $starttime, type => $dtype, id => $id, user => $user }); | |
527 | ||
528 | my $outfh; | |
529 | ||
530 | if (!$cpid) { # child | |
531 | ||
532 | $0 = "task $upid"; | |
533 | $WORKER_FLAG = 1; | |
534 | ||
535 | $SIG{INT} = $SIG{QUIT} = $SIG{TERM} = sub { die "received interrupt\n"; }; | |
536 | ||
537 | $SIG{CHLD} = $SIG{PIPE} = 'DEFAULT'; | |
e97f807c | 538 | $SIG{TTOU} = 'IGNORE'; |
d9072797 | 539 | |
6a09f096 | 540 | my $ppgid; |
aea06195 | 541 | # set session/process group allows to kill the process group |
e97f807c | 542 | if ($sync && -t STDIN) { |
aea06195 TL |
543 | # some sync'ed workers operate on the tty but setsid sessions lose |
544 | # the tty, so just create a new pgroup and give it the tty | |
6a09f096 | 545 | $ppgid = POSIX::getpgrp() or die "failed to get old pgid: $!\n"; |
4c99c559 | 546 | POSIX::setpgid(0, 0) or die "failed to setpgid: $!\n"; |
e97f807c SI |
547 | POSIX::tcsetpgrp(fileno(STDIN), $$) or die "failed to tcsetpgrp: $!\n"; |
548 | } else { | |
549 | POSIX::setsid(); | |
550 | } | |
d9072797 DM |
551 | |
552 | POSIX::close ($psync[0]); | |
ed52a843 | 553 | POSIX::close ($ctrlfd[0]) if $sync; |
d9072797 DM |
554 | POSIX::close ($csync[1]); |
555 | ||
556 | $outfh = $sync ? $psync[1] : undef; | |
ed52a843 | 557 | my $resfh = $sync ? $ctrlfd[1] : undef; |
d9072797 DM |
558 | |
559 | eval { | |
560 | PVE::INotify::inotify_close(); | |
561 | ||
562 | if (my $atfork = $self->{atfork}) { | |
563 | &$atfork(); | |
564 | } | |
565 | ||
fb3a1b29 | 566 | # same algorithm as used inside SA |
d9072797 DM |
567 | # STDIN = /dev/null |
568 | my $fd = fileno (STDIN); | |
569 | ||
570 | if (!$sync) { | |
571 | close STDIN; | |
572 | POSIX::close(0) if $fd != 0; | |
573 | ||
967e9823 | 574 | open(STDIN, '<', '/dev/null') or die "unable to redirect STDIN - $!"; |
d9072797 DM |
575 | |
576 | $outfh = PVE::Tools::upid_open($upid); | |
4d9f4d62 | 577 | $resfh = fileno($outfh); |
d9072797 DM |
578 | } |
579 | ||
580 | ||
581 | # redirect STDOUT | |
582 | $fd = fileno(STDOUT); | |
583 | close STDOUT; | |
584 | POSIX::close (1) if $fd != 1; | |
585 | ||
967e9823 | 586 | open(STDOUT, ">&", $outfh) or die "unable to redirect STDOUT - $!"; |
d9072797 DM |
587 | |
588 | STDOUT->autoflush (1); | |
589 | ||
590 | # redirect STDERR to STDOUT | |
591 | $fd = fileno (STDERR); | |
592 | close STDERR; | |
593 | POSIX::close(2) if $fd != 2; | |
594 | ||
967e9823 | 595 | open(STDERR, '>&', '1') or die "unable to redirect STDERR - $!"; |
d9072797 DM |
596 | |
597 | STDERR->autoflush(1); | |
598 | }; | |
599 | if (my $err = $@) { | |
600 | my $msg = "ERROR: $err"; | |
601 | POSIX::write($psync[1], $msg, length ($msg)); | |
602 | POSIX::close($psync[1]); | |
603 | POSIX::_exit(1); | |
604 | kill(-9, $$); | |
605 | } | |
606 | ||
607 | # sync with parent (signal that we are ready) | |
95109cc4 TL |
608 | POSIX::write($psync[1], $upid, length ($upid)); |
609 | POSIX::close($psync[1]) if !$sync; # don't need output pipe if async | |
d9072797 | 610 | |
2311859b WB |
611 | eval { |
612 | my $readbuf = ''; | |
613 | # sync with parent (wait until parent is ready) | |
614 | POSIX::read($csync[0], $readbuf, 4096); | |
615 | die "parent setup error\n" if $readbuf ne 'OK'; | |
d9072797 | 616 | |
2311859b WB |
617 | if ($self->{type} eq 'ha') { |
618 | print "task started by HA resource agent\n"; | |
619 | } | |
620 | &$function($upid); | |
621 | }; | |
edbb302e | 622 | my ($msg, $exitcode); |
d9072797 DM |
623 | my $err = $@; |
624 | if ($err) { | |
625 | chomp $err; | |
626 | $err =~ s/\n/ /mg; | |
627 | syslog('err', $err); | |
edbb302e SI |
628 | $msg = "TASK ERROR: $err\n"; |
629 | $exitcode = -1; | |
ff79ee65 FE |
630 | } elsif (my $warnings = $self->{warning_count}) { |
631 | $msg = "TASK WARNINGS: $warnings\n"; | |
632 | $exitcode = 0; | |
d9072797 | 633 | } else { |
edbb302e SI |
634 | $msg = "TASK OK\n"; |
635 | $exitcode = 0; | |
d9072797 | 636 | } |
edbb302e | 637 | POSIX::write($resfh, $msg, length($msg)); |
6a09f096 SI |
638 | |
639 | if ($sync) { | |
640 | POSIX::close($resfh); | |
641 | if ( -t STDIN) { | |
642 | POSIX::tcsetpgrp(fileno(STDIN), $ppgid) or | |
643 | die "failed to tcsetpgrp to parent: $!\n"; | |
644 | } | |
645 | } | |
edbb302e | 646 | POSIX::_exit($exitcode); |
a609b2f7 | 647 | kill(-9, $$); # not really needed, just to be sure |
d9072797 DM |
648 | } |
649 | ||
650 | # parent | |
651 | ||
652 | POSIX::close ($psync[1]); | |
ed52a843 | 653 | POSIX::close ($ctrlfd[1]) if $sync; |
d9072797 DM |
654 | POSIX::close ($csync[0]); |
655 | ||
656 | my $readbuf = ''; | |
657 | # sync with child (wait until child starts) | |
658 | POSIX::read($psync[0], $readbuf, 4096); | |
659 | ||
660 | if (!$sync) { | |
661 | POSIX::close($psync[0]); | |
662 | &$register_worker($cpid, $user, $upid); | |
663 | } else { | |
664 | chomp $readbuf; | |
665 | } | |
666 | ||
667 | eval { | |
668 | die "got no worker upid - start worker failed\n" if !$readbuf; | |
669 | ||
670 | if ($readbuf =~ m/^ERROR:\s*(.+)$/m) { | |
671 | die "starting worker failed: $1\n"; | |
672 | } | |
673 | ||
674 | if ($readbuf ne $upid) { | |
675 | die "got strange worker upid ('$readbuf' != '$upid') - start worker failed\n"; | |
676 | } | |
677 | ||
678 | if ($sync) { | |
679 | $outfh = PVE::Tools::upid_open($upid); | |
680 | } | |
681 | }; | |
682 | my $err = $@; | |
683 | ||
684 | if (!$err) { | |
685 | my $msg = 'OK'; | |
686 | POSIX::write($csync[1], $msg, length ($msg)); | |
687 | POSIX::close($csync[1]); | |
688 | ||
689 | } else { | |
690 | POSIX::close($csync[1]); | |
691 | kill(-9, $cpid); # make sure it gets killed | |
692 | die $err; | |
693 | } | |
694 | ||
695 | $self->log_cluster_msg('info', $user, "starting task $upid"); | |
696 | ||
697 | my $tlist = $self->active_workers($upid, $sync); | |
9a42d8a2 TL |
698 | eval { $self->broadcast_tasklist($tlist); }; |
699 | syslog('err', $@) if $@; | |
d9072797 DM |
700 | |
701 | my $res = 0; | |
702 | ||
703 | if ($sync) { | |
ed52a843 | 704 | |
3e2da216 | 705 | $tee_worker->($psync[0], $ctrlfd[0], $outfh, $cpid); |
d9072797 DM |
706 | |
707 | &$kill_process_group($cpid, $pstart); # make sure it gets killed | |
708 | ||
709 | close($outfh); | |
710 | ||
711 | waitpid($cpid, 0); | |
712 | $res = $?; | |
713 | &$log_task_result($upid, $user, $res); | |
714 | } | |
715 | ||
716 | return wantarray ? ($upid, $res) : $upid; | |
717 | } | |
718 | ||
06885ac8 FE |
719 | sub log_warn { |
720 | my ($message) = @_; | |
721 | ||
722 | if ($rest_env) { | |
723 | $rest_env->warn($message); | |
724 | } else { | |
725 | chomp($message); | |
726 | print STDERR "WARN: $message\n"; | |
727 | } | |
728 | } | |
729 | ||
ff79ee65 FE |
730 | sub warn { |
731 | my ($self, $message) = @_; | |
732 | ||
733 | chomp($message); | |
734 | ||
735 | print STDERR "WARN: $message\n"; | |
736 | ||
737 | $self->{warning_count}++; | |
738 | } | |
739 | ||
d9072797 DM |
740 | # Abstract function |
741 | ||
742 | sub log_cluster_msg { | |
743 | my ($self, $pri, $user, $msg) = @_; | |
744 | ||
745 | syslog($pri, "%s", $msg); | |
746 | ||
747 | # PVE::Cluster::log_msg($pri, $user, $msg); | |
748 | } | |
749 | ||
750 | sub broadcast_tasklist { | |
751 | my ($self, $tlist) = @_; | |
752 | ||
753 | # PVE::Cluster::broadcast_tasklist($tlist); | |
754 | } | |
755 | ||
756 | sub check_api2_permissions { | |
757 | my ($self, $perm, $username, $param) = @_; | |
758 | ||
759 | return 1 if !$username && $perm->{user} eq 'world'; | |
760 | ||
761 | raise_perm_exc("user != null") if !$username; | |
762 | ||
763 | return 1 if $username eq 'root@pam'; | |
764 | ||
765 | raise_perm_exc('user != root@pam') if !$perm; | |
766 | ||
767 | return 1 if $perm->{user} && $perm->{user} eq 'all'; | |
768 | ||
769 | ##return $self->exec_api2_perm_check($perm->{check}, $username, $param) | |
770 | ##if $perm->{check}; | |
771 | ||
772 | raise_perm_exc(); | |
773 | } | |
774 | ||
775 | # init_request - should be called before each REST/CLI request | |
776 | sub init_request { | |
777 | my ($self, %params) = @_; | |
778 | ||
dc9c3ffa DM |
779 | $self->{result_attributes} = {} |
780 | ||
781 | # if you nedd more, implement in subclass | |
d9072797 DM |
782 | } |
783 | ||
784 | 1; |