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