]>
Commit | Line | Data |
---|---|---|
2c3a6c0a DM |
1 | package PVE::RPCEnvironment; |
2 | ||
3 | use strict; | |
4 | use warnings; | |
8d6e045f | 5 | use POSIX qw(:sys_wait_h EINTR); |
b28410fc | 6 | use IO::Handle; |
2c3a6c0a | 7 | use IO::File; |
b28410fc | 8 | use IO::Select; |
2c3a6c0a DM |
9 | use Fcntl qw(:flock); |
10 | use PVE::SafeSyslog; | |
11 | use PVE::Tools; | |
12 | use PVE::INotify; | |
13 | use PVE::Cluster; | |
14 | use PVE::ProcFSTools; | |
15 | use PVE::AccessControl; | |
7b24102d | 16 | use CGI; |
2c3a6c0a DM |
17 | |
18 | # we use this singleton class to pass RPC related environment values | |
19 | ||
20 | my $pve_env; | |
21 | ||
22 | # save $SIG{CHLD} handler implementation. | |
23 | # simply set $SIG{CHLD} = $worker_reaper; | |
24 | # and register forked processes with &$register_worker(pid) | |
25 | # Note: using $SIG{CHLD} = 'IGNORE' or $SIG{CHLD} = sub { wait (); } or ... | |
26 | # has serious side effects, because perls built in system() and open() | |
27 | # functions can't get the correct exit status of a child. So we cant use | |
28 | # that (also see perlipc) | |
29 | ||
30 | my $WORKER_PIDS; | |
31 | ||
32 | my $log_task_result = sub { | |
33 | my ($upid, $user, $status) = @_; | |
34 | ||
35 | my $msg = 'successful'; | |
36 | my $pri = 'info'; | |
37 | if ($status != 0) { | |
38 | my $ec = $status >> 8; | |
39 | my $ic = $status & 255; | |
40 | $msg = $ec ? "failed ($ec)" : "interrupted ($ic)"; | |
41 | $pri = 'err'; | |
42 | } | |
43 | my $tlist = active_workers($upid); | |
44 | PVE::Cluster::broadcast_tasklist($tlist); | |
45 | my $task; | |
46 | foreach my $t (@$tlist) { | |
47 | if ($t->{upid} eq $upid) { | |
48 | $task = $t; | |
49 | last; | |
50 | } | |
51 | } | |
52 | if ($task && $task->{status}) { | |
53 | $msg = $task->{status}; | |
54 | } | |
55 | PVE::Cluster::log_msg($pri, $user, "end task $upid $msg"); | |
56 | }; | |
57 | ||
58 | my $worker_reaper = sub { | |
59 | local $!; local $?; | |
60 | foreach my $pid (keys %$WORKER_PIDS) { | |
61 | my $waitpid = waitpid ($pid, WNOHANG); | |
62 | if (defined($waitpid) && ($waitpid == $pid)) { | |
63 | my $info = $WORKER_PIDS->{$pid}; | |
64 | if ($info && $info->{upid} && $info->{user}) { | |
65 | &$log_task_result($info->{upid}, $info->{user}, $?); | |
66 | } | |
67 | delete ($WORKER_PIDS->{$pid}); | |
68 | } | |
69 | } | |
70 | }; | |
71 | ||
72 | my $register_worker = sub { | |
73 | my ($pid, $user, $upid) = @_; | |
74 | ||
75 | return if !$pid; | |
76 | ||
77 | # do not register if already finished | |
78 | my $waitpid = waitpid ($pid, WNOHANG); | |
79 | if (defined($waitpid) && ($waitpid == $pid)) { | |
80 | delete ($WORKER_PIDS->{$pid}); | |
81 | return; | |
82 | } | |
83 | ||
84 | $WORKER_PIDS->{$pid} = { | |
85 | user => $user, | |
86 | upid => $upid, | |
87 | }; | |
88 | }; | |
89 | ||
90 | # ACL cache | |
91 | ||
92 | my $compile_acl = sub { | |
93 | my ($self, $user) = @_; | |
94 | ||
95 | my $res = {}; | |
96 | my $cfg = $self->{user_cfg}; | |
97 | ||
98 | return undef if !$cfg->{roles}; | |
99 | ||
100 | if ($user eq 'root@pam') { # root can do anything | |
101 | return {'/' => $cfg->{roles}->{'Administrator'}}; | |
102 | } | |
103 | ||
104 | foreach my $path (sort keys %{$cfg->{acl}}) { | |
105 | my @ra = PVE::AccessControl::roles($cfg, $user, $path); | |
106 | ||
107 | my $privs = {}; | |
108 | foreach my $role (@ra) { | |
109 | if (my $privset = $cfg->{roles}->{$role}) { | |
110 | foreach my $p (keys %$privset) { | |
111 | $privs->{$p} = 1; | |
112 | } | |
113 | } | |
114 | } | |
115 | ||
116 | $res->{$path} = $privs; | |
117 | } | |
118 | ||
119 | return $res; | |
120 | }; | |
121 | ||
122 | sub permissions { | |
123 | my ($self, $user, $path) = @_; | |
124 | ||
125 | $user = PVE::AccessControl::verify_username($user, 1); | |
126 | return {} if !$user; | |
127 | ||
128 | my $cache = $self->{aclcache}; | |
129 | ||
130 | my $acl = $cache->{$user}; | |
131 | ||
132 | if (!$acl) { | |
133 | if (!($acl = &$compile_acl($self, $user))) { | |
134 | return {}; | |
135 | } | |
136 | $cache->{$user} = $acl; | |
137 | } | |
138 | ||
139 | my $perm; | |
140 | ||
141 | if (!($perm = $acl->{$path})) { | |
142 | $perm = {}; | |
143 | foreach my $p (sort keys %$acl) { | |
144 | my $final = ($path eq $p); | |
145 | ||
146 | next if !(($p eq '/') || $final || ($path =~ m|^$p/|)); | |
147 | ||
148 | $perm = $acl->{$p}; | |
149 | } | |
150 | $acl->{$path} = $perm; | |
151 | } | |
152 | ||
153 | return $perm; | |
154 | } | |
155 | ||
156 | sub check { | |
157 | my ($self, $user, $path, $privs) = @_; | |
158 | ||
159 | my $perm = $self->permissions($user, $path); | |
160 | ||
161 | foreach my $priv (@$privs) { | |
162 | return undef if !$perm->{$priv}; | |
163 | }; | |
164 | ||
165 | return 1; | |
166 | }; | |
167 | ||
168 | sub user_enabled { | |
169 | my ($self, $user) = @_; | |
170 | ||
171 | my $cfg = $self->{user_cfg}; | |
172 | return PVE::AccessControl::user_enabled($cfg, $user); | |
173 | } | |
174 | ||
175 | # initialize environment - must be called once at program startup | |
176 | sub init { | |
177 | my ($class, $type, %params) = @_; | |
178 | ||
179 | $class = ref($class) || $class; | |
180 | ||
181 | die "already initialized" if $pve_env; | |
182 | ||
e42eedbc | 183 | die "unknown environment type" if !$type || $type !~ m/^(cli|pub|priv|ha)$/; |
2c3a6c0a DM |
184 | |
185 | $SIG{CHLD} = $worker_reaper; | |
186 | ||
187 | # environment types | |
188 | # cli ... command started fron command line | |
189 | # pub ... access from public server (apache) | |
190 | # priv ... access from private server (pvedaemon) | |
e42eedbc | 191 | # ha ... access from HA resource manager agent (rgmanager) |
2c3a6c0a DM |
192 | |
193 | my $self = { | |
194 | user_cfg => {}, | |
195 | aclcache => {}, | |
196 | aclversion => undef, | |
197 | type => $type, | |
198 | }; | |
199 | ||
200 | bless $self, $class; | |
201 | ||
202 | foreach my $p (keys %params) { | |
203 | if ($p eq 'atfork') { | |
204 | $self->{$p} = $params{$p}; | |
205 | } else { | |
206 | die "unknown option '$p'"; | |
207 | } | |
208 | } | |
209 | ||
210 | $pve_env = $self; | |
211 | ||
212 | my ($sysname, $nodename) = POSIX::uname(); | |
213 | ||
214 | $nodename =~ s/\..*$//; # strip domain part, if any | |
215 | ||
216 | $self->{nodename} = $nodename; | |
217 | ||
218 | return $self; | |
219 | }; | |
220 | ||
221 | # get the singleton | |
222 | sub get { | |
223 | ||
224 | die "not initialized" if !$pve_env; | |
225 | ||
226 | return $pve_env; | |
227 | } | |
228 | ||
7b24102d DM |
229 | sub parse_params { |
230 | my ($self, $enable_upload) = @_; | |
231 | ||
232 | if ($self->{request_rec}) { | |
233 | my $cgi; | |
234 | if ($enable_upload) { | |
235 | $cgi = CGI->new($self->{request_rec}); | |
236 | } else { | |
237 | # disable upload using empty upload_hook | |
238 | $cgi = CGI->new($self->{request_rec}, sub {}, undef, 0); | |
239 | } | |
240 | $self->{cgi} = $cgi; | |
241 | my $params = $cgi->Vars(); | |
242 | return $params; | |
243 | } elsif ($self->{params}) { | |
244 | return $self->{params}; | |
245 | } else { | |
246 | die "no parameters registered"; | |
247 | } | |
248 | } | |
249 | ||
250 | sub get_upload_info { | |
251 | my ($self, $param) = @_; | |
252 | ||
253 | my $cgi = $self->{cgi}; | |
254 | die "CGI not initialized" if !$cgi; | |
255 | ||
256 | my $pd = $cgi->param($param); | |
257 | die "unable to get cgi parameter info\n" if !$pd; | |
258 | my $info = $cgi->uploadInfo($pd); | |
259 | die "unable to get cgi upload info\n" if !$info; | |
260 | ||
261 | my $res = { %$info }; | |
262 | ||
263 | my $tmpfilename = $cgi->tmpFileName($pd); | |
264 | die "unable to get cgi upload file name\n" if !$tmpfilename; | |
265 | $res->{tmpfilename} = $tmpfilename; | |
266 | ||
267 | #my $hndl = $cgi->upload($param); | |
268 | #die "unable to get cgi upload handle\n" if !$hndl; | |
269 | #$res->{handle} = $hndl->handle; | |
270 | ||
271 | return $res; | |
272 | } | |
273 | ||
2c3a6c0a DM |
274 | # init_request - must be called before each RPC request |
275 | sub init_request { | |
276 | my ($self, %params) = @_; | |
277 | ||
278 | PVE::Cluster::cfs_update(); | |
279 | ||
be6ea723 | 280 | $self->{result_attributes} = {}; |
272fe9ff | 281 | |
2c3a6c0a DM |
282 | my $userconfig; # we use this for regression tests |
283 | foreach my $p (keys %params) { | |
284 | if ($p eq 'userconfig') { | |
285 | $userconfig = $params{$p}; | |
7b24102d DM |
286 | } elsif ($p eq 'request_rec') { |
287 | # pass Apache2::RequestRec | |
288 | $self->{request_rec} = $params{$p}; | |
289 | } elsif ($p eq 'params') { | |
290 | $self->{params} = $params{$p}; | |
2c3a6c0a DM |
291 | } else { |
292 | die "unknown parameter '$p'"; | |
293 | } | |
294 | } | |
295 | ||
296 | eval { | |
297 | $self->{aclcache} = {}; | |
298 | if ($userconfig) { | |
299 | my $ucdata = PVE::Tools::file_get_contents($userconfig); | |
300 | my $cfg = PVE::AccessControl::parse_user_config($userconfig, $ucdata); | |
301 | $self->{user_cfg} = $cfg; | |
302 | } else { | |
303 | my $ucvers = PVE::Cluster::cfs_file_version('user.cfg'); | |
304 | if (!$self->{aclcache} || !defined($self->{aclversion}) || | |
305 | !defined($ucvers) || ($ucvers ne $self->{aclversion})) { | |
306 | $self->{aclversion} = $ucvers; | |
307 | my $cfg = PVE::Cluster::cfs_read_file('user.cfg'); | |
308 | $self->{user_cfg} = $cfg; | |
309 | } | |
310 | } | |
311 | }; | |
312 | if (my $err = $@) { | |
313 | $self->{user_cfg} = {}; | |
314 | die "Unable to load access control list: $err"; | |
315 | } | |
316 | } | |
317 | ||
318 | sub set_client_ip { | |
319 | my ($self, $ip) = @_; | |
320 | ||
321 | $self->{client_ip} = $ip; | |
322 | } | |
323 | ||
324 | sub get_client_ip { | |
325 | my ($self) = @_; | |
326 | ||
327 | return $self->{client_ip}; | |
328 | } | |
329 | ||
be6ea723 DM |
330 | sub set_result_attrib { |
331 | my ($self, $key, $value) = @_; | |
2c3a6c0a | 332 | |
be6ea723 | 333 | $self->{result_attributes}->{$key} = $value; |
2c3a6c0a DM |
334 | } |
335 | ||
be6ea723 DM |
336 | sub get_result_attrib { |
337 | my ($self, $key) = @_; | |
272fe9ff | 338 | |
be6ea723 | 339 | return $self->{result_attributes}->{$key}; |
272fe9ff DM |
340 | } |
341 | ||
2c3a6c0a DM |
342 | sub set_language { |
343 | my ($self, $lang) = @_; | |
344 | ||
345 | # fixme: initialize I18N | |
346 | ||
347 | $self->{language} = $lang; | |
348 | } | |
349 | ||
350 | sub get_language { | |
351 | my ($self) = @_; | |
352 | ||
353 | return $self->{language}; | |
354 | } | |
355 | ||
356 | sub set_user { | |
357 | my ($self, $user) = @_; | |
358 | ||
359 | # fixme: get ACLs | |
360 | ||
361 | $self->{user} = $user; | |
362 | } | |
363 | ||
364 | sub get_user { | |
365 | my ($self) = @_; | |
366 | ||
367 | die "user name not set\n" if !$self->{user}; | |
368 | ||
369 | return $self->{user}; | |
370 | } | |
371 | ||
372 | # read/update list of active workers | |
373 | # we move all finished tasks to the archive index, | |
374 | # but keep aktive and most recent task in the active file. | |
5bf71a96 DM |
375 | # $nocheck ... consider $new_upid still running (avoid that |
376 | # we try to read the reult to early. | |
2c3a6c0a | 377 | sub active_workers { |
5bf71a96 | 378 | my ($new_upid, $nocheck) = @_; |
2c3a6c0a DM |
379 | |
380 | my $lkfn = "/var/log/pve/tasks/.active.lock"; | |
381 | ||
382 | my $timeout = 10; | |
383 | ||
384 | my $code = sub { | |
385 | ||
386 | my $tasklist = PVE::INotify::read_file('active'); | |
387 | ||
388 | my @ta; | |
389 | my $tlist = []; | |
390 | my $thash = {}; # only list task once | |
391 | ||
392 | my $check_task = sub { | |
d33d0735 | 393 | my ($task, $running) = @_; |
2c3a6c0a | 394 | |
d33d0735 | 395 | if ($running || PVE::ProcFSTools::check_process_running($task->{pid}, $task->{pstart})) { |
2c3a6c0a DM |
396 | push @$tlist, $task; |
397 | } else { | |
398 | delete $task->{pid}; | |
399 | push @ta, $task; | |
400 | } | |
401 | delete $task->{pstart}; | |
402 | }; | |
403 | ||
404 | foreach my $task (@$tasklist) { | |
405 | my $upid = $task->{upid}; | |
406 | next if $thash->{$upid}; | |
407 | $thash->{$upid} = $task; | |
408 | &$check_task($task); | |
409 | } | |
410 | ||
411 | if ($new_upid && !(my $task = $thash->{$new_upid})) { | |
412 | $task = PVE::Tools::upid_decode($new_upid); | |
413 | $task->{upid} = $new_upid; | |
414 | $thash->{$new_upid} = $task; | |
d33d0735 | 415 | &$check_task($task, $nocheck); |
2c3a6c0a DM |
416 | } |
417 | ||
418 | ||
419 | @ta = sort { $b->{starttime} cmp $a->{starttime} } @ta; | |
420 | ||
421 | my $save = defined($new_upid); | |
422 | ||
423 | foreach my $task (@ta) { | |
424 | next if $task->{endtime}; | |
425 | $task->{endtime} = time(); | |
426 | $task->{status} = PVE::Tools::upid_read_status($task->{upid}); | |
427 | $save = 1; | |
428 | } | |
429 | ||
430 | my $archive = ''; | |
431 | my @arlist = (); | |
432 | foreach my $task (@ta) { | |
433 | if (!$task->{saved}) { | |
434 | $archive .= sprintf("$task->{upid} %08X $task->{status}\n", $task->{endtime}); | |
435 | $save = 1; | |
436 | push @arlist, $task; | |
437 | $task->{saved} = 1; | |
438 | } | |
439 | } | |
440 | ||
441 | if ($archive) { | |
442 | my $size = 0; | |
443 | my $filename = "/var/log/pve/tasks/index"; | |
444 | eval { | |
445 | my $fh = IO::File->new($filename, '>>', 0644) || | |
446 | die "unable to open file '$filename' - $!\n"; | |
447 | PVE::Tools::safe_print($filename, $fh, $archive); | |
448 | $size = -s $fh; | |
449 | close($fh) || | |
450 | die "unable to close file '$filename' - $!\n"; | |
451 | }; | |
452 | my $err = $@; | |
453 | if ($err) { | |
454 | syslog('err', $err); | |
455 | foreach my $task (@arlist) { # mark as not saved | |
456 | $task->{saved} = 0; | |
457 | } | |
458 | } | |
459 | my $maxsize = 50000; # about 1000 entries | |
460 | if ($size > $maxsize) { | |
461 | rename($filename, "$filename.1"); | |
462 | } | |
463 | } | |
464 | ||
465 | # we try to reduce the amount of data | |
466 | # list all running tasks and task and a few others | |
467 | # try to limit to 25 tasks | |
468 | my $ctime = time(); | |
469 | my $max = 25 - scalar(@$tlist); | |
470 | foreach my $task (@ta) { | |
471 | last if $max <= 0; | |
472 | push @$tlist, $task; | |
473 | $max--; | |
474 | } | |
475 | ||
476 | PVE::INotify::write_file('active', $tlist) if $save; | |
477 | ||
478 | return $tlist; | |
479 | }; | |
480 | ||
481 | my $res = PVE::Tools::lock_file($lkfn, $timeout, $code); | |
482 | die $@ if $@; | |
483 | ||
484 | return $res; | |
485 | } | |
486 | ||
b9e47e57 DM |
487 | my $kill_process_group = sub { |
488 | my ($pid, $pstart) = @_; | |
489 | ||
490 | # send kill to process group (negative pid) | |
491 | my $kpid = -$pid; | |
492 | ||
493 | # always send signal to all pgrp members | |
494 | kill(15, $kpid); # send TERM signal | |
495 | ||
496 | # give max 5 seconds to shut down | |
497 | for (my $i = 0; $i < 5; $i++) { | |
498 | return if !PVE::ProcFSTools::check_process_running($pid, $pstart); | |
499 | sleep (1); | |
500 | } | |
501 | ||
502 | # to be sure | |
503 | kill(9, $kpid); | |
504 | }; | |
505 | ||
506 | sub check_worker { | |
507 | my ($upid, $killit) = @_; | |
508 | ||
509 | my $task = PVE::Tools::upid_decode($upid); | |
510 | ||
511 | my $running = PVE::ProcFSTools::check_process_running($task->{pid}, $task->{pstart}); | |
512 | ||
513 | return 0 if !$running; | |
514 | ||
515 | if ($killit) { | |
516 | &$kill_process_group($task->{pid}); | |
517 | return 0; | |
518 | } | |
519 | ||
520 | return 1; | |
521 | } | |
522 | ||
2c3a6c0a DM |
523 | # start long running workers |
524 | # STDIN is redirected to /dev/null | |
525 | # STDOUT,STDERR are redirected to the filename returned by upid_decode | |
526 | # NOTE: we simulate running in foreground if ($self->{type} eq 'cli') | |
527 | sub fork_worker { | |
528 | my ($self, $dtype, $id, $user, $function) = @_; | |
529 | ||
530 | $dtype = 'unknown' if !defined ($dtype); | |
531 | $id = '' if !defined ($id); | |
532 | ||
533 | $user = 'root@pve' if !defined ($user); | |
534 | ||
535 | my $sync = $self->{type} eq 'cli' ? 1 : 0; | |
536 | ||
537 | local $SIG{INT} = | |
538 | local $SIG{QUIT} = | |
539 | local $SIG{PIPE} = | |
540 | local $SIG{TERM} = 'IGNORE'; | |
541 | ||
542 | my $starttime = time (); | |
543 | ||
544 | my @psync = POSIX::pipe(); | |
545 | my @csync = POSIX::pipe(); | |
546 | ||
547 | my $node = $self->{nodename}; | |
548 | ||
549 | my $cpid = fork(); | |
550 | die "unable to fork worker - $!" if !defined($cpid); | |
551 | ||
552 | my $workerpuid = $cpid ? $cpid : $$; | |
553 | ||
554 | my $pstart = PVE::ProcFSTools::read_proc_starttime($workerpuid) || | |
555 | die "unable to read process start time"; | |
556 | ||
557 | my $upid = PVE::Tools::upid_encode ({ | |
558 | node => $node, pid => $workerpuid, pstart => $pstart, | |
559 | starttime => $starttime, type => $dtype, id => $id, user => $user }); | |
560 | ||
561 | my $outfh; | |
562 | ||
563 | if (!$cpid) { # child | |
564 | ||
565 | $0 = "task $upid"; | |
566 | ||
567 | $SIG{INT} = $SIG{QUIT} = $SIG{TERM} = sub { die "received interrupt\n"; }; | |
568 | ||
569 | $SIG{CHLD} = $SIG{PIPE} = 'DEFAULT'; | |
570 | ||
571 | # set sess/process group - we want to be able to kill the | |
572 | # whole process group | |
573 | POSIX::setsid(); | |
574 | ||
575 | POSIX::close ($psync[0]); | |
576 | POSIX::close ($csync[1]); | |
577 | ||
578 | $outfh = $sync ? $psync[1] : undef; | |
579 | ||
580 | eval { | |
581 | PVE::INotify::inotify_close(); | |
582 | ||
583 | if (my $atfork = $self->{atfork}) { | |
584 | &$atfork(); | |
585 | } | |
586 | ||
587 | # same algorythm as used inside SA | |
588 | # STDIN = /dev/null | |
589 | my $fd = fileno (STDIN); | |
2c3a6c0a | 590 | |
5a941ebe DM |
591 | if (!$sync) { |
592 | close STDIN; | |
593 | POSIX::close(0) if $fd != 0; | |
594 | ||
595 | die "unable to redirect STDIN - $!" | |
596 | if !open(STDIN, "</dev/null"); | |
597 | ||
598 | $outfh = PVE::Tools::upid_open($upid); | |
599 | } | |
2c3a6c0a | 600 | |
2c3a6c0a DM |
601 | |
602 | # redirect STDOUT | |
603 | $fd = fileno(STDOUT); | |
604 | close STDOUT; | |
605 | POSIX::close (1) if $fd != 1; | |
606 | ||
607 | die "unable to redirect STDOUT - $!" | |
608 | if !open(STDOUT, ">&", $outfh); | |
609 | ||
610 | STDOUT->autoflush (1); | |
611 | ||
612 | # redirect STDERR to STDOUT | |
613 | $fd = fileno (STDERR); | |
614 | close STDERR; | |
615 | POSIX::close(2) if $fd != 2; | |
616 | ||
617 | die "unable to redirect STDERR - $!" | |
618 | if !open(STDERR, ">&1"); | |
619 | ||
620 | STDERR->autoflush(1); | |
621 | }; | |
622 | if (my $err = $@) { | |
623 | my $msg = "ERROR: $err"; | |
624 | POSIX::write($psync[1], $msg, length ($msg)); | |
625 | POSIX::close($psync[1]); | |
626 | POSIX::_exit(1); | |
b9e47e57 | 627 | kill(-9, $$); |
2c3a6c0a DM |
628 | } |
629 | ||
f6f2d51f | 630 | # sync with parent (signal that we are ready) |
2c3a6c0a DM |
631 | if ($sync) { |
632 | print "$upid\n"; | |
633 | } else { | |
634 | POSIX::write($psync[1], $upid, length ($upid)); | |
635 | POSIX::close($psync[1]); | |
636 | } | |
637 | ||
638 | my $readbuf = ''; | |
639 | # sync with parent (wait until parent is ready) | |
640 | POSIX::read($csync[0], $readbuf, 4096); | |
641 | die "parent setup error\n" if $readbuf ne 'OK'; | |
642 | ||
e42eedbc DM |
643 | if ($self->{type} eq 'ha') { |
644 | print "task started by HA resource agent\n"; | |
645 | } | |
2c3a6c0a DM |
646 | eval { &$function($upid); }; |
647 | my $err = $@; | |
648 | if ($err) { | |
649 | chomp $err; | |
650 | $err =~ s/\n/ /mg; | |
651 | syslog('err', $err); | |
652 | print STDERR "TASK ERROR: $err\n"; | |
653 | POSIX::_exit(-1); | |
654 | } else { | |
655 | print STDERR "TASK OK\n"; | |
b9e47e57 | 656 | POSIX::_exit(0); |
2c3a6c0a | 657 | } |
b9e47e57 | 658 | kill(-9, $$); |
2c3a6c0a DM |
659 | } |
660 | ||
661 | # parent | |
662 | ||
663 | POSIX::close ($psync[1]); | |
664 | POSIX::close ($csync[0]); | |
665 | ||
666 | my $readbuf = ''; | |
667 | # sync with child (wait until child starts) | |
668 | POSIX::read($psync[0], $readbuf, 4096); | |
669 | ||
670 | if (!$sync) { | |
671 | POSIX::close($psync[0]); | |
672 | &$register_worker($cpid, $user, $upid); | |
673 | } else { | |
674 | chomp $readbuf; | |
675 | } | |
676 | ||
677 | eval { | |
678 | die "got no worker upid - start worker failed\n" if !$readbuf; | |
679 | ||
680 | if ($readbuf =~ m/^ERROR:\s*(.+)$/m) { | |
681 | die "starting worker failed: $1\n"; | |
682 | } | |
683 | ||
684 | if ($readbuf ne $upid) { | |
685 | die "got strange worker upid ('$readbuf' != '$upid') - start worker failed\n"; | |
686 | } | |
687 | ||
688 | if ($sync) { | |
689 | $outfh = PVE::Tools::upid_open($upid); | |
690 | } | |
691 | }; | |
692 | my $err = $@; | |
693 | ||
694 | if (!$err) { | |
695 | my $msg = 'OK'; | |
696 | POSIX::write($csync[1], $msg, length ($msg)); | |
697 | POSIX::close($csync[1]); | |
698 | ||
699 | } else { | |
700 | POSIX::close($csync[1]); | |
b9e47e57 | 701 | kill(-9, $cpid); # make sure it gets killed |
2c3a6c0a DM |
702 | die $err; |
703 | } | |
704 | ||
705 | PVE::Cluster::log_msg('info', $user, "starting task $upid"); | |
706 | ||
5bf71a96 | 707 | my $tlist = active_workers($upid, $sync); |
2c3a6c0a DM |
708 | PVE::Cluster::broadcast_tasklist($tlist); |
709 | ||
710 | my $res = 0; | |
711 | ||
712 | if ($sync) { | |
713 | my $count; | |
714 | my $outbuf = ''; | |
8d6e045f | 715 | my $int_count = 0; |
2c3a6c0a | 716 | eval { |
8d6e045f | 717 | local $SIG{INT} = local $SIG{QUIT} = local $SIG{TERM} = sub { |
527b2e7a DM |
718 | # always send signal to all pgrp members |
719 | my $kpid = -$cpid; | |
8d6e045f | 720 | if ($int_count < 3) { |
527b2e7a | 721 | kill(15, $kpid); # send TERM signal |
8d6e045f | 722 | } else { |
527b2e7a | 723 | kill(9, $kpid); # send KILL signal |
8d6e045f DM |
724 | } |
725 | $int_count++; | |
726 | }; | |
2c3a6c0a | 727 | local $SIG{PIPE} = sub { die "broken pipe\n"; }; |
b28410fc DM |
728 | |
729 | my $select = new IO::Select; | |
730 | my $fh = IO::Handle->new_from_fd($psync[0], 'r'); | |
731 | $select->add($fh); | |
732 | ||
733 | while ($select->count) { | |
734 | my @handles = $select->can_read(1); | |
735 | if (scalar(@handles)) { | |
736 | my $count = sysread ($handles[0], $readbuf, 4096); | |
737 | if (!defined ($count)) { | |
738 | my $err = $!; | |
739 | die "sync pipe read error: $err\n"; | |
2c3a6c0a | 740 | } |
b28410fc DM |
741 | last if $count == 0; # eof |
742 | ||
743 | $outbuf .= $readbuf; | |
744 | while ($outbuf =~ s/^(([^\010\r\n]*)(\r|\n|(\010)+|\r\n))//s) { | |
745 | my $line = $1; | |
746 | my $data = $2; | |
747 | if ($data =~ m/^TASK OK$/) { | |
748 | # skip | |
749 | } elsif ($data =~ m/^TASK ERROR: (.+)$/) { | |
750 | print STDERR "$1\n"; | |
751 | } else { | |
752 | print $line; | |
753 | } | |
754 | if ($outfh) { | |
755 | print $outfh $line; | |
756 | $outfh->flush(); | |
757 | } | |
2c3a6c0a | 758 | } |
b28410fc DM |
759 | } else { |
760 | # some commands daemonize without closing stdout | |
761 | last if !PVE::ProcFSTools::check_process_running($cpid); | |
2c3a6c0a DM |
762 | } |
763 | } | |
764 | }; | |
765 | my $err = $@; | |
766 | ||
767 | POSIX::close($psync[0]); | |
768 | ||
769 | if ($outbuf) { # just to be sure | |
770 | print $outbuf; | |
771 | if ($outfh) { | |
772 | print $outfh $outbuf; | |
773 | } | |
774 | } | |
775 | ||
776 | if ($err) { | |
777 | $err =~ s/\n/ /mg; | |
778 | print STDERR "$err\n"; | |
779 | if ($outfh) { | |
780 | print $outfh "TASK ERROR: $err\n"; | |
781 | } | |
2c3a6c0a DM |
782 | } |
783 | ||
b9e47e57 DM |
784 | &$kill_process_group($cpid, $pstart); # make sure it gets killed |
785 | ||
2c3a6c0a DM |
786 | close($outfh); |
787 | ||
b9e47e57 | 788 | waitpid($cpid, 0); |
2c3a6c0a DM |
789 | $res = $?; |
790 | &$log_task_result($upid, $user, $res); | |
791 | } | |
792 | ||
793 | return wantarray ? ($upid, $res) : $upid; | |
794 | } | |
795 | ||
796 | 1; |