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