Commit | Line | Data |
---|---|---|
e143e9d8 DM |
1 | package PVE::Tools; |
2 | ||
3 | use strict; | |
c36f332e | 4 | use warnings; |
b5d12b08 | 5 | use POSIX qw(EINTR); |
00dc9d0f | 6 | use IO::Socket::IP; |
a956854f | 7 | use Socket qw(AF_INET AF_INET6 AI_ALL AI_V4MAPPED); |
e143e9d8 DM |
8 | use IO::Select; |
9 | use File::Basename; | |
10 | use File::Path qw(make_path); | |
97c8c857 WB |
11 | use Filesys::Df (); # don't overwrite our df() |
12 | use IO::Pipe; | |
e143e9d8 | 13 | use IO::File; |
7eb283fb | 14 | use IO::Dir; |
e143e9d8 DM |
15 | use IPC::Open3; |
16 | use Fcntl qw(:DEFAULT :flock); | |
17 | use base 'Exporter'; | |
18 | use URI::Escape; | |
19 | use Encode; | |
568ba6a4 | 20 | use Digest::SHA; |
e38bcd35 | 21 | use Text::ParseWords; |
7514b23a | 22 | use String::ShellQuote; |
c38cea65 | 23 | use Time::HiRes qw(usleep gettimeofday tv_interval alarm); |
e143e9d8 | 24 | |
57eeea0c DM |
25 | # avoid warning when parsing long hex values with hex() |
26 | no warnings 'portable'; # Support for 64-bit ints required | |
27 | ||
e143e9d8 | 28 | our @EXPORT_OK = qw( |
602ec0cd DM |
29 | $IPV6RE |
30 | $IPV4RE | |
e143e9d8 | 31 | lock_file |
493004a2 | 32 | lock_file_full |
e143e9d8 DM |
33 | run_command |
34 | file_set_contents | |
35 | file_get_contents | |
36 | file_read_firstline | |
7eb283fb DM |
37 | dir_glob_regex |
38 | dir_glob_foreach | |
e143e9d8 DM |
39 | split_list |
40 | template_replace | |
41 | safe_print | |
42 | trim | |
43 | extract_param | |
23e0e0d7 | 44 | file_copy |
e143e9d8 DM |
45 | ); |
46 | ||
47 | my $pvelogdir = "/var/log/pve"; | |
48 | my $pvetaskdir = "$pvelogdir/tasks"; | |
49 | ||
50 | mkdir $pvelogdir; | |
51 | mkdir $pvetaskdir; | |
52 | ||
cd9bd252 | 53 | my $IPV4OCTET = "(?:25[0-5]|(?:2[0-4]|1[0-9]|[1-9])?[0-9])"; |
602ec0cd DM |
54 | our $IPV4RE = "(?:(?:$IPV4OCTET\\.){3}$IPV4OCTET)"; |
55 | my $IPV6H16 = "(?:[0-9a-fA-F]{1,4})"; | |
56 | my $IPV6LS32 = "(?:(?:$IPV4RE|$IPV6H16:$IPV6H16))"; | |
57 | ||
58 | our $IPV6RE = "(?:" . | |
59 | "(?:(?:" . "(?:$IPV6H16:){6})$IPV6LS32)|" . | |
60 | "(?:(?:" . "::(?:$IPV6H16:){5})$IPV6LS32)|" . | |
61 | "(?:(?:(?:" . "$IPV6H16)?::(?:$IPV6H16:){4})$IPV6LS32)|" . | |
62 | "(?:(?:(?:(?:$IPV6H16:){0,1}$IPV6H16)?::(?:$IPV6H16:){3})$IPV6LS32)|" . | |
63 | "(?:(?:(?:(?:$IPV6H16:){0,2}$IPV6H16)?::(?:$IPV6H16:){2})$IPV6LS32)|" . | |
64 | "(?:(?:(?:(?:$IPV6H16:){0,3}$IPV6H16)?::(?:$IPV6H16:){1})$IPV6LS32)|" . | |
65 | "(?:(?:(?:(?:$IPV6H16:){0,4}$IPV6H16)?::" . ")$IPV6LS32)|" . | |
66 | "(?:(?:(?:(?:$IPV6H16:){0,5}$IPV6H16)?::" . ")$IPV6H16)|" . | |
67 | "(?:(?:(?:(?:$IPV6H16:){0,6}$IPV6H16)?::" . ")))"; | |
68 | ||
176b1186 WB |
69 | our $IPRE = "(?:$IPV4RE|$IPV6RE)"; |
70 | ||
be8f0477 | 71 | use constant {CLONE_NEWNS => 0x00020000, |
952fd95e WB |
72 | CLONE_NEWUTS => 0x04000000, |
73 | CLONE_NEWIPC => 0x08000000, | |
74 | CLONE_NEWUSER => 0x10000000, | |
75 | CLONE_NEWPID => 0x20000000, | |
be8f0477 | 76 | CLONE_NEWNET => 0x40000000}; |
952fd95e | 77 | |
0f0990f1 DM |
78 | sub run_with_timeout { |
79 | my ($timeout, $code, @param) = @_; | |
e143e9d8 | 80 | |
0f0990f1 | 81 | die "got timeout\n" if $timeout <= 0; |
e143e9d8 | 82 | |
c38cea65 | 83 | my $prev_alarm = alarm 0; # suspend outer alarm early |
0f0990f1 DM |
84 | |
85 | my $sigcount = 0; | |
e143e9d8 DM |
86 | |
87 | my $res; | |
88 | ||
e143e9d8 | 89 | eval { |
0f0990f1 DM |
90 | local $SIG{ALRM} = sub { $sigcount++; die "got timeout\n"; }; |
91 | local $SIG{PIPE} = sub { $sigcount++; die "broken pipe\n" }; | |
92 | local $SIG{__DIE__}; # see SA bug 4631 | |
e143e9d8 | 93 | |
c38cea65 | 94 | alarm($timeout); |
e143e9d8 | 95 | |
c38cea65 | 96 | eval { $res = &$code(@param); }; |
0f0990f1 DM |
97 | |
98 | alarm(0); # avoid race conditions | |
c38cea65 WB |
99 | |
100 | die $@ if $@; | |
0f0990f1 DM |
101 | }; |
102 | ||
103 | my $err = $@; | |
104 | ||
c38cea65 | 105 | alarm $prev_alarm; |
0f0990f1 | 106 | |
c38cea65 | 107 | # this shouldn't happen anymore? |
0f0990f1 DM |
108 | die "unknown error" if $sigcount && !$err; # seems to happen sometimes |
109 | ||
110 | die $err if $err; | |
111 | ||
112 | return $res; | |
113 | } | |
e143e9d8 | 114 | |
0f0990f1 DM |
115 | # flock: we use one file handle per process, so lock file |
116 | # can be called multiple times and succeeds for the same process. | |
117 | ||
118 | my $lock_handles = {}; | |
119 | ||
493004a2 DM |
120 | sub lock_file_full { |
121 | my ($filename, $timeout, $shared, $code, @param) = @_; | |
0f0990f1 DM |
122 | |
123 | $timeout = 10 if !$timeout; | |
124 | ||
493004a2 DM |
125 | my $mode = $shared ? LOCK_SH : LOCK_EX; |
126 | ||
0f0990f1 | 127 | my $lock_func = sub { |
e143e9d8 | 128 | if (!$lock_handles->{$$}->{$filename}) { |
f127adab FG |
129 | my $fh = new IO::File(">>$filename") || |
130 | die "can't open file - $!\n"; | |
131 | $lock_handles->{$$}->{$filename} = { fh => $fh, refcount => 0}; | |
e143e9d8 DM |
132 | } |
133 | ||
f127adab | 134 | if (!flock($lock_handles->{$$}->{$filename}->{fh}, $mode|LOCK_NB)) { |
b148e99f | 135 | print STDERR "trying to acquire lock..."; |
b5d12b08 DM |
136 | my $success; |
137 | while(1) { | |
f127adab | 138 | $success = flock($lock_handles->{$$}->{$filename}->{fh}, $mode); |
b5d12b08 DM |
139 | # try again on EINTR (see bug #273) |
140 | if ($success || ($! != EINTR)) { | |
141 | last; | |
142 | } | |
143 | } | |
144 | if (!$success) { | |
e143e9d8 | 145 | print STDERR " failed\n"; |
b148e99f | 146 | die "can't acquire lock '$filename' - $!\n"; |
e143e9d8 DM |
147 | } |
148 | print STDERR " OK\n"; | |
149 | } | |
f127adab | 150 | $lock_handles->{$$}->{$filename}->{refcount}++; |
e143e9d8 DM |
151 | }; |
152 | ||
0f0990f1 | 153 | my $res; |
e143e9d8 | 154 | |
0f0990f1 DM |
155 | eval { run_with_timeout($timeout, $lock_func); }; |
156 | my $err = $@; | |
157 | if ($err) { | |
158 | $err = "can't lock file '$filename' - $err"; | |
159 | } else { | |
160 | eval { $res = &$code(@param) }; | |
161 | $err = $@; | |
162 | } | |
e143e9d8 | 163 | |
f127adab FG |
164 | if (my $fh = $lock_handles->{$$}->{$filename}->{fh}) { |
165 | my $refcount = --$lock_handles->{$$}->{$filename}->{refcount}; | |
166 | if ($refcount <= 0) { | |
167 | $lock_handles->{$$}->{$filename} = undef; | |
168 | close ($fh); | |
169 | } | |
e143e9d8 DM |
170 | } |
171 | ||
172 | if ($err) { | |
173 | $@ = $err; | |
174 | return undef; | |
175 | } | |
176 | ||
177 | $@ = undef; | |
178 | ||
179 | return $res; | |
180 | } | |
181 | ||
493004a2 DM |
182 | |
183 | sub lock_file { | |
184 | my ($filename, $timeout, $code, @param) = @_; | |
185 | ||
186 | return lock_file_full($filename, $timeout, 0, $code, @param); | |
187 | } | |
188 | ||
e143e9d8 DM |
189 | sub file_set_contents { |
190 | my ($filename, $data, $perm) = @_; | |
191 | ||
192 | $perm = 0644 if !defined($perm); | |
193 | ||
194 | my $tmpname = "$filename.tmp.$$"; | |
195 | ||
196 | eval { | |
197 | my $fh = IO::File->new($tmpname, O_WRONLY|O_CREAT, $perm); | |
198 | die "unable to open file '$tmpname' - $!\n" if !$fh; | |
199 | die "unable to write '$tmpname' - $!\n" unless print $fh $data; | |
200 | die "closing file '$tmpname' failed - $!\n" unless close $fh; | |
201 | }; | |
202 | my $err = $@; | |
203 | ||
204 | if ($err) { | |
205 | unlink $tmpname; | |
206 | die $err; | |
207 | } | |
208 | ||
209 | if (!rename($tmpname, $filename)) { | |
210 | my $msg = "close (rename) atomic file '$filename' failed: $!\n"; | |
211 | unlink $tmpname; | |
212 | die $msg; | |
213 | } | |
214 | } | |
215 | ||
216 | sub file_get_contents { | |
217 | my ($filename, $max) = @_; | |
218 | ||
219 | my $fh = IO::File->new($filename, "r") || | |
220 | die "can't open '$filename' - $!\n"; | |
221 | ||
222 | my $content = safe_read_from($fh, $max); | |
223 | ||
224 | close $fh; | |
225 | ||
226 | return $content; | |
227 | } | |
228 | ||
23e0e0d7 WL |
229 | sub file_copy { |
230 | my ($filename, $dst, $max, $perm) = @_; | |
231 | ||
232 | file_set_contents ($dst, file_get_contents($filename, $max), $perm); | |
233 | } | |
234 | ||
e143e9d8 DM |
235 | sub file_read_firstline { |
236 | my ($filename) = @_; | |
237 | ||
238 | my $fh = IO::File->new ($filename, "r"); | |
239 | return undef if !$fh; | |
240 | my $res = <$fh>; | |
88955a2e | 241 | chomp $res if $res; |
e143e9d8 DM |
242 | $fh->close; |
243 | return $res; | |
244 | } | |
245 | ||
246 | sub safe_read_from { | |
247 | my ($fh, $max, $oneline) = @_; | |
248 | ||
249 | $max = 32768 if !$max; | |
250 | ||
251 | my $br = 0; | |
252 | my $input = ''; | |
253 | my $count; | |
254 | while ($count = sysread($fh, $input, 8192, $br)) { | |
255 | $br += $count; | |
256 | die "input too long - aborting\n" if $br > $max; | |
257 | if ($oneline && $input =~ m/^(.*)\n/) { | |
258 | $input = $1; | |
259 | last; | |
260 | } | |
261 | } | |
262 | die "unable to read input - $!\n" if !defined($count); | |
263 | ||
264 | return $input; | |
265 | } | |
266 | ||
bd9c3a36 WB |
267 | # The $cmd parameter can be: |
268 | # -) a string | |
269 | # This is generally executed by passing it to the shell with the -c option. | |
270 | # However, it can be executed in one of two ways, depending on whether | |
271 | # there's a pipe involved: | |
272 | # *) with pipe: passed explicitly to bash -c, prefixed with: | |
273 | # set -o pipefail && | |
274 | # *) without a pipe: passed to perl's open3 which uses 'sh -c' | |
275 | # (Note that this may result in two different syntax requirements!) | |
276 | # FIXME? | |
277 | # -) an array of arguments (strings) | |
278 | # Will be executed without interference from a shell. (Parameters are passed | |
279 | # as is, no escape sequences of strings will be touched.) | |
fcdc0cfc WB |
280 | # -) an array of arrays |
281 | # Each array represents a command, and each command's output is piped into | |
282 | # the following command's standard input. | |
283 | # For this a shell command string is created with pipe symbols between each | |
284 | # command. | |
285 | # Each command is a list of strings meant to end up in the final command | |
286 | # unchanged. In order to achieve this, every argument is shell-quoted. | |
287 | # Quoting can be disabled for a particular argument by turning it into a | |
288 | # reference, this allows inserting arbitrary shell options. | |
289 | # For instance: the $cmd [ [ 'echo', 'hello', \'>/dev/null' ] ] will not | |
290 | # produce any output, while the $cmd [ [ 'echo', 'hello', '>/dev/null' ] ] | |
291 | # will literally print: hello >/dev/null | |
e143e9d8 DM |
292 | sub run_command { |
293 | my ($cmd, %param) = @_; | |
294 | ||
295 | my $old_umask; | |
ded47a61 | 296 | my $cmdstr; |
e143e9d8 | 297 | |
fcdc0cfc WB |
298 | if (my $ref = ref($cmd)) { |
299 | if (ref($cmd->[0])) { | |
300 | $cmdstr = 'set -o pipefail && '; | |
301 | my $pipe = ''; | |
302 | foreach my $command (@$cmd) { | |
303 | # concatenate quoted parameters | |
304 | # strings which are passed by reference are NOT shell quoted | |
305 | $cmdstr .= $pipe . join(' ', map { ref($_) ? $$_ : shellquote($_) } @$command); | |
306 | $pipe = ' | '; | |
307 | } | |
308 | $cmd = [ '/bin/bash', '-c', "set -o pipefail && $cmdstr" ]; | |
309 | } else { | |
310 | $cmdstr = cmd2string($cmd); | |
311 | } | |
312 | } else { | |
ded47a61 | 313 | $cmdstr = $cmd; |
22d4efe6 | 314 | if ($cmd =~ m/\|/) { |
e0cabd2c DM |
315 | # see 'man bash' for option pipefail |
316 | $cmd = [ '/bin/bash', '-c', "set -o pipefail && $cmd" ]; | |
317 | } else { | |
318 | $cmd = [ $cmd ]; | |
319 | } | |
ded47a61 | 320 | } |
e143e9d8 DM |
321 | |
322 | my $errmsg; | |
323 | my $laststderr; | |
324 | my $timeout; | |
325 | my $oldtimeout; | |
326 | my $pid; | |
7e826928 | 327 | my $exitcode; |
e143e9d8 | 328 | |
4630cb95 DM |
329 | my $outfunc; |
330 | my $errfunc; | |
331 | my $logfunc; | |
332 | my $input; | |
333 | my $output; | |
a417477c | 334 | my $afterfork; |
7e826928 | 335 | my $noerr; |
4630cb95 | 336 | |
e143e9d8 | 337 | eval { |
e143e9d8 DM |
338 | |
339 | foreach my $p (keys %param) { | |
340 | if ($p eq 'timeout') { | |
341 | $timeout = $param{$p}; | |
342 | } elsif ($p eq 'umask') { | |
eb9e24df | 343 | $old_umask = umask($param{$p}); |
e143e9d8 DM |
344 | } elsif ($p eq 'errmsg') { |
345 | $errmsg = $param{$p}; | |
e143e9d8 DM |
346 | } elsif ($p eq 'input') { |
347 | $input = $param{$p}; | |
1c50a24a DM |
348 | } elsif ($p eq 'output') { |
349 | $output = $param{$p}; | |
e143e9d8 DM |
350 | } elsif ($p eq 'outfunc') { |
351 | $outfunc = $param{$p}; | |
352 | } elsif ($p eq 'errfunc') { | |
353 | $errfunc = $param{$p}; | |
776fbfa8 DM |
354 | } elsif ($p eq 'logfunc') { |
355 | $logfunc = $param{$p}; | |
a417477c DM |
356 | } elsif ($p eq 'afterfork') { |
357 | $afterfork = $param{$p}; | |
7e826928 TL |
358 | } elsif ($p eq 'noerr') { |
359 | $noerr = $param{$p}; | |
e143e9d8 DM |
360 | } else { |
361 | die "got unknown parameter '$p' for run_command\n"; | |
362 | } | |
363 | } | |
364 | ||
4630cb95 DM |
365 | if ($errmsg) { |
366 | my $origerrfunc = $errfunc; | |
367 | $errfunc = sub { | |
368 | if ($laststderr) { | |
369 | if ($origerrfunc) { | |
370 | &$origerrfunc("$laststderr\n"); | |
371 | } else { | |
372 | print STDERR "$laststderr\n" if $laststderr; | |
373 | } | |
374 | } | |
375 | $laststderr = shift; | |
376 | }; | |
377 | } | |
378 | ||
1c50a24a DM |
379 | my $reader = $output && $output =~ m/^>&/ ? $output : IO::File->new(); |
380 | my $writer = $input && $input =~ m/^<&/ ? $input : IO::File->new(); | |
381 | my $error = IO::File->new(); | |
382 | ||
e143e9d8 DM |
383 | # try to avoid locale related issues/warnings |
384 | my $lang = $param{lang} || 'C'; | |
385 | ||
386 | my $orig_pid = $$; | |
387 | ||
388 | eval { | |
329351e2 | 389 | local $ENV{LC_ALL} = $lang; |
e143e9d8 DM |
390 | |
391 | # suppress LVM warnings like: "File descriptor 3 left open"; | |
392 | local $ENV{LVM_SUPPRESS_FD_WARNINGS} = "1"; | |
393 | ||
394 | $pid = open3($writer, $reader, $error, @$cmd) || die $!; | |
f38995ab DM |
395 | |
396 | # if we pipe fron STDIN, open3 closes STDIN, so we we | |
397 | # a perl warning "Filehandle STDIN reopened as GENXYZ .. " | |
398 | # as soon as we open a new file. | |
399 | # to avoid that we open /dev/null | |
400 | if (!ref($writer) && !defined(fileno(STDIN))) { | |
401 | POSIX::close(0); | |
402 | open(STDIN, "</dev/null"); | |
403 | } | |
e143e9d8 DM |
404 | }; |
405 | ||
406 | my $err = $@; | |
407 | ||
408 | # catch exec errors | |
409 | if ($orig_pid != $$) { | |
410 | warn "ERROR: $err"; | |
411 | POSIX::_exit (1); | |
412 | kill ('KILL', $$); | |
413 | } | |
414 | ||
415 | die $err if $err; | |
416 | ||
417 | local $SIG{ALRM} = sub { die "got timeout\n"; } if $timeout; | |
418 | $oldtimeout = alarm($timeout) if $timeout; | |
419 | ||
a417477c DM |
420 | &$afterfork() if $afterfork; |
421 | ||
f38995ab DM |
422 | if (ref($writer)) { |
423 | print $writer $input if defined $input; | |
424 | close $writer; | |
425 | } | |
e143e9d8 DM |
426 | |
427 | my $select = new IO::Select; | |
f38995ab | 428 | $select->add($reader) if ref($reader); |
e143e9d8 DM |
429 | $select->add($error); |
430 | ||
431 | my $outlog = ''; | |
432 | my $errlog = ''; | |
433 | ||
434 | my $starttime = time(); | |
435 | ||
436 | while ($select->count) { | |
437 | my @handles = $select->can_read(1); | |
438 | ||
439 | foreach my $h (@handles) { | |
440 | my $buf = ''; | |
441 | my $count = sysread ($h, $buf, 4096); | |
442 | if (!defined ($count)) { | |
443 | my $err = $!; | |
444 | kill (9, $pid); | |
445 | waitpid ($pid, 0); | |
446 | die $err; | |
447 | } | |
448 | $select->remove ($h) if !$count; | |
449 | if ($h eq $reader) { | |
776fbfa8 | 450 | if ($outfunc || $logfunc) { |
e143e9d8 DM |
451 | eval { |
452 | $outlog .= $buf; | |
453 | while ($outlog =~ s/^([^\010\r\n]*)(\r|\n|(\010)+|\r\n)//s) { | |
454 | my $line = $1; | |
776fbfa8 DM |
455 | &$outfunc($line) if $outfunc; |
456 | &$logfunc($line) if $logfunc; | |
e143e9d8 DM |
457 | } |
458 | }; | |
459 | my $err = $@; | |
460 | if ($err) { | |
461 | kill (9, $pid); | |
462 | waitpid ($pid, 0); | |
463 | die $err; | |
464 | } | |
465 | } else { | |
466 | print $buf; | |
467 | *STDOUT->flush(); | |
468 | } | |
469 | } elsif ($h eq $error) { | |
776fbfa8 | 470 | if ($errfunc || $logfunc) { |
e143e9d8 DM |
471 | eval { |
472 | $errlog .= $buf; | |
473 | while ($errlog =~ s/^([^\010\r\n]*)(\r|\n|(\010)+|\r\n)//s) { | |
474 | my $line = $1; | |
776fbfa8 DM |
475 | &$errfunc($line) if $errfunc; |
476 | &$logfunc($line) if $logfunc; | |
e143e9d8 DM |
477 | } |
478 | }; | |
479 | my $err = $@; | |
480 | if ($err) { | |
481 | kill (9, $pid); | |
482 | waitpid ($pid, 0); | |
483 | die $err; | |
484 | } | |
485 | } else { | |
486 | print STDERR $buf; | |
487 | *STDERR->flush(); | |
488 | } | |
489 | } | |
490 | } | |
491 | } | |
492 | ||
493 | &$outfunc($outlog) if $outfunc && $outlog; | |
776fbfa8 DM |
494 | &$logfunc($outlog) if $logfunc && $outlog; |
495 | ||
e143e9d8 | 496 | &$errfunc($errlog) if $errfunc && $errlog; |
776fbfa8 | 497 | &$logfunc($errlog) if $logfunc && $errlog; |
e143e9d8 DM |
498 | |
499 | waitpid ($pid, 0); | |
500 | ||
501 | if ($? == -1) { | |
502 | die "failed to execute\n"; | |
503 | } elsif (my $sig = ($? & 127)) { | |
504 | die "got signal $sig\n"; | |
7e826928 TL |
505 | } elsif ($exitcode = ($? >> 8)) { |
506 | if (!($exitcode == 24 && ($cmdstr =~ m|^(\S+/)?rsync\s|))) { | |
1c50a24a DM |
507 | if ($errmsg && $laststderr) { |
508 | my $lerr = $laststderr; | |
509 | $laststderr = undef; | |
510 | die "$lerr\n"; | |
511 | } | |
7e826928 | 512 | die "exit code $exitcode\n"; |
e143e9d8 | 513 | } |
e143e9d8 DM |
514 | } |
515 | ||
516 | alarm(0); | |
517 | }; | |
518 | ||
519 | my $err = $@; | |
520 | ||
521 | alarm(0); | |
522 | ||
4630cb95 DM |
523 | if ($errmsg && $laststderr) { |
524 | &$errfunc(undef); # flush laststderr | |
525 | } | |
e143e9d8 DM |
526 | |
527 | umask ($old_umask) if defined($old_umask); | |
528 | ||
529 | alarm($oldtimeout) if $oldtimeout; | |
530 | ||
531 | if ($err) { | |
532 | if ($pid && ($err eq "got timeout\n")) { | |
533 | kill (9, $pid); | |
534 | waitpid ($pid, 0); | |
535 | die "command '$cmdstr' failed: $err"; | |
536 | } | |
537 | ||
538 | if ($errmsg) { | |
adbc988d | 539 | $err =~ s/^usermod:\s*// if $cmdstr =~ m|^(\S+/)?usermod\s|; |
e143e9d8 | 540 | die "$errmsg: $err"; |
7e826928 | 541 | } elsif(!$noerr) { |
e143e9d8 DM |
542 | die "command '$cmdstr' failed: $err"; |
543 | } | |
544 | } | |
1c50a24a | 545 | |
7e826928 | 546 | return $exitcode; |
e143e9d8 DM |
547 | } |
548 | ||
549 | sub split_list { | |
550 | my $listtxt = shift || ''; | |
551 | ||
d2b0374d DM |
552 | return split (/\0/, $listtxt) if $listtxt =~ m/\0/; |
553 | ||
554 | $listtxt =~ s/[,;]/ /g; | |
e143e9d8 DM |
555 | $listtxt =~ s/^\s+//; |
556 | ||
557 | my @data = split (/\s+/, $listtxt); | |
558 | ||
559 | return @data; | |
560 | } | |
561 | ||
562 | sub trim { | |
563 | my $txt = shift; | |
564 | ||
565 | return $txt if !defined($txt); | |
566 | ||
567 | $txt =~ s/^\s+//; | |
568 | $txt =~ s/\s+$//; | |
569 | ||
570 | return $txt; | |
571 | } | |
572 | ||
573 | # simple uri templates like "/vms/{vmid}" | |
574 | sub template_replace { | |
575 | my ($tmpl, $data) = @_; | |
576 | ||
3250f5c7 DM |
577 | return $tmpl if !$tmpl; |
578 | ||
e143e9d8 DM |
579 | my $res = ''; |
580 | while ($tmpl =~ m/([^{]+)?({([^}]+)})?/g) { | |
581 | $res .= $1 if $1; | |
582 | $res .= ($data->{$3} || '-') if $2; | |
583 | } | |
584 | return $res; | |
585 | } | |
586 | ||
587 | sub safe_print { | |
588 | my ($filename, $fh, $data) = @_; | |
589 | ||
590 | return if !$data; | |
591 | ||
592 | my $res = print $fh $data; | |
593 | ||
594 | die "write to '$filename' failed\n" if !$res; | |
595 | } | |
596 | ||
597 | sub debmirrors { | |
598 | ||
599 | return { | |
600 | 'at' => 'ftp.at.debian.org', | |
601 | 'au' => 'ftp.au.debian.org', | |
602 | 'be' => 'ftp.be.debian.org', | |
603 | 'bg' => 'ftp.bg.debian.org', | |
604 | 'br' => 'ftp.br.debian.org', | |
605 | 'ca' => 'ftp.ca.debian.org', | |
606 | 'ch' => 'ftp.ch.debian.org', | |
607 | 'cl' => 'ftp.cl.debian.org', | |
608 | 'cz' => 'ftp.cz.debian.org', | |
609 | 'de' => 'ftp.de.debian.org', | |
610 | 'dk' => 'ftp.dk.debian.org', | |
611 | 'ee' => 'ftp.ee.debian.org', | |
612 | 'es' => 'ftp.es.debian.org', | |
613 | 'fi' => 'ftp.fi.debian.org', | |
614 | 'fr' => 'ftp.fr.debian.org', | |
615 | 'gr' => 'ftp.gr.debian.org', | |
616 | 'hk' => 'ftp.hk.debian.org', | |
617 | 'hr' => 'ftp.hr.debian.org', | |
618 | 'hu' => 'ftp.hu.debian.org', | |
619 | 'ie' => 'ftp.ie.debian.org', | |
620 | 'is' => 'ftp.is.debian.org', | |
621 | 'it' => 'ftp.it.debian.org', | |
622 | 'jp' => 'ftp.jp.debian.org', | |
623 | 'kr' => 'ftp.kr.debian.org', | |
624 | 'mx' => 'ftp.mx.debian.org', | |
625 | 'nl' => 'ftp.nl.debian.org', | |
626 | 'no' => 'ftp.no.debian.org', | |
627 | 'nz' => 'ftp.nz.debian.org', | |
628 | 'pl' => 'ftp.pl.debian.org', | |
629 | 'pt' => 'ftp.pt.debian.org', | |
630 | 'ro' => 'ftp.ro.debian.org', | |
631 | 'ru' => 'ftp.ru.debian.org', | |
632 | 'se' => 'ftp.se.debian.org', | |
633 | 'si' => 'ftp.si.debian.org', | |
634 | 'sk' => 'ftp.sk.debian.org', | |
635 | 'tr' => 'ftp.tr.debian.org', | |
636 | 'tw' => 'ftp.tw.debian.org', | |
637 | 'gb' => 'ftp.uk.debian.org', | |
638 | 'us' => 'ftp.us.debian.org', | |
639 | }; | |
640 | } | |
641 | ||
910d57b0 DM |
642 | my $keymaphash = { |
643 | 'dk' => ['Danish', 'da', 'qwerty/dk-latin1.kmap.gz', 'dk', 'nodeadkeys'], | |
644 | 'de' => ['German', 'de', 'qwertz/de-latin1-nodeadkeys.kmap.gz', 'de', 'nodeadkeys' ], | |
645 | 'de-ch' => ['Swiss-German', 'de-ch', 'qwertz/sg-latin1.kmap.gz', 'ch', 'de_nodeadkeys' ], | |
5a5ca434 DM |
646 | 'en-gb' => ['United Kingdom', 'en-gb', 'qwerty/uk.kmap.gz' , 'gb', undef], |
647 | 'en-us' => ['U.S. English', 'en-us', 'qwerty/us-latin1.kmap.gz', 'us', undef ], | |
910d57b0 DM |
648 | 'es' => ['Spanish', 'es', 'qwerty/es.kmap.gz', 'es', 'nodeadkeys'], |
649 | #'et' => [], # Ethopia or Estonia ?? | |
650 | 'fi' => ['Finnish', 'fi', 'qwerty/fi-latin1.kmap.gz', 'fi', 'nodeadkeys'], | |
651 | #'fo' => ['Faroe Islands', 'fo', ???, 'fo', 'nodeadkeys'], | |
652 | 'fr' => ['French', 'fr', 'azerty/fr-latin1.kmap.gz', 'fr', 'nodeadkeys'], | |
653 | 'fr-be' => ['Belgium-French', 'fr-be', 'azerty/be2-latin1.kmap.gz', 'be', 'nodeadkeys'], | |
654 | 'fr-ca' => ['Canada-French', 'fr-ca', 'qwerty/cf.kmap.gz', 'ca', 'fr-legacy'], | |
655 | 'fr-ch' => ['Swiss-French', 'fr-ch', 'qwertz/fr_CH-latin1.kmap.gz', 'ch', 'fr_nodeadkeys'], | |
656 | #'hr' => ['Croatia', 'hr', 'qwertz/croat.kmap.gz', 'hr', ??], # latin2? | |
657 | 'hu' => ['Hungarian', 'hu', 'qwertz/hu.kmap.gz', 'hu', undef], | |
658 | 'is' => ['Icelandic', 'is', 'qwerty/is-latin1.kmap.gz', 'is', 'nodeadkeys'], | |
659 | 'it' => ['Italian', 'it', 'qwerty/it2.kmap.gz', 'it', 'nodeadkeys'], | |
660 | 'jp' => ['Japanese', 'ja', 'qwerty/jp106.kmap.gz', 'jp', undef], | |
661 | 'lt' => ['Lithuanian', 'lt', 'qwerty/lt.kmap.gz', 'lt', 'std'], | |
662 | #'lv' => ['Latvian', 'lv', 'qwerty/lv-latin4.kmap.gz', 'lv', ??], # latin4 or latin7? | |
663 | 'mk' => ['Macedonian', 'mk', 'qwerty/mk.kmap.gz', 'mk', 'nodeadkeys'], | |
664 | 'nl' => ['Dutch', 'nl', 'qwerty/nl.kmap.gz', 'nl', undef], | |
665 | #'nl-be' => ['Belgium-Dutch', 'nl-be', ?, ?, ?], | |
666 | 'no' => ['Norwegian', 'no', 'qwerty/no-latin1.kmap.gz', 'no', 'nodeadkeys'], | |
667 | 'pl' => ['Polish', 'pl', 'qwerty/pl.kmap.gz', 'pl', undef], | |
668 | 'pt' => ['Portuguese', 'pt', 'qwerty/pt-latin1.kmap.gz', 'pt', 'nodeadkeys'], | |
669 | 'pt-br' => ['Brazil-Portuguese', 'pt-br', 'qwerty/br-latin1.kmap.gz', 'br', 'nodeadkeys'], | |
670 | #'ru' => ['Russian', 'ru', 'qwerty/ru.kmap.gz', 'ru', undef], # dont know? | |
671 | 'si' => ['Slovenian', 'sl', 'qwertz/slovene.kmap.gz', 'si', undef], | |
9934cd0b | 672 | 'se' => ['Swedish', 'sv', 'qwerty/se-latin1.kmap.gz', 'se', 'nodeadkeys'], |
910d57b0 | 673 | #'th' => [], |
c10cc112 | 674 | 'tr' => ['Turkish', 'tr', 'qwerty/trq.kmap.gz', 'tr', undef], |
910d57b0 DM |
675 | }; |
676 | ||
677 | my $kvmkeymaparray = []; | |
678 | foreach my $lc (keys %$keymaphash) { | |
679 | push @$kvmkeymaparray, $keymaphash->{$lc}->[1]; | |
680 | } | |
681 | ||
e143e9d8 | 682 | sub kvmkeymaps { |
910d57b0 DM |
683 | return $keymaphash; |
684 | } | |
685 | ||
686 | sub kvmkeymaplist { | |
687 | return $kvmkeymaparray; | |
e143e9d8 DM |
688 | } |
689 | ||
690 | sub extract_param { | |
691 | my ($param, $key) = @_; | |
692 | ||
693 | my $res = $param->{$key}; | |
694 | delete $param->{$key}; | |
695 | ||
696 | return $res; | |
697 | } | |
698 | ||
eb7047f6 | 699 | # Note: we use this to wait until vncterm/spiceterm is ready |
ec6d95b4 DM |
700 | sub wait_for_vnc_port { |
701 | my ($port, $timeout) = @_; | |
702 | ||
703 | $timeout = 5 if !$timeout; | |
eb7047f6 DM |
704 | my $sleeptime = 0; |
705 | my $starttime = [gettimeofday]; | |
706 | my $elapsed; | |
ec6d95b4 | 707 | |
eb7047f6 | 708 | while (($elapsed = tv_interval($starttime)) < $timeout) { |
ec6d95b4 DM |
709 | if (my $fh = IO::File->new ("/proc/net/tcp", "r")) { |
710 | while (defined (my $line = <$fh>)) { | |
711 | if ($line =~ m/^\s*\d+:\s+([0-9A-Fa-f]{8}):([0-9A-Fa-f]{4})\s/) { | |
712 | if ($port == hex($2)) { | |
713 | close($fh); | |
714 | return 1; | |
715 | } | |
716 | } | |
717 | } | |
718 | close($fh); | |
719 | } | |
eb7047f6 DM |
720 | $sleeptime += 100000 if $sleeptime < 1000000; |
721 | usleep($sleeptime); | |
ec6d95b4 DM |
722 | } |
723 | ||
724 | return undef; | |
725 | } | |
726 | ||
59b3f563 | 727 | sub next_unused_port { |
46775218 | 728 | my ($range_start, $range_end, $family) = @_; |
59b3f563 DM |
729 | |
730 | # We use a file to register allocated ports. | |
731 | # Those registrations expires after $expiretime. | |
732 | # We use this to avoid race conditions between | |
733 | # allocation and use of ports. | |
734 | ||
735 | my $filename = "/var/tmp/pve-reserved-ports"; | |
e143e9d8 | 736 | |
59b3f563 | 737 | my $code = sub { |
e143e9d8 | 738 | |
59b3f563 DM |
739 | my $expiretime = 5; |
740 | my $ctime = time(); | |
e143e9d8 | 741 | |
59b3f563 DM |
742 | my $ports = {}; |
743 | ||
744 | if (my $fh = IO::File->new ($filename, "r")) { | |
745 | while (my $line = <$fh>) { | |
746 | if ($line =~ m/^(\d+)\s(\d+)$/) { | |
747 | my ($port, $timestamp) = ($1, $2); | |
748 | if (($timestamp + $expiretime) > $ctime) { | |
749 | $ports->{$port} = $timestamp; # not expired | |
750 | } | |
751 | } | |
752 | } | |
e143e9d8 | 753 | } |
59b3f563 DM |
754 | |
755 | my $newport; | |
756 | ||
757 | for (my $p = $range_start; $p < $range_end; $p++) { | |
758 | next if $ports->{$p}; # reserved | |
759 | ||
00dc9d0f | 760 | my $sock = IO::Socket::IP->new(Listen => 5, |
00dc9d0f WB |
761 | LocalPort => $p, |
762 | ReuseAddr => 1, | |
46775218 | 763 | Family => $family, |
e43b3a0f WB |
764 | Proto => 0, |
765 | GetAddrInfoFlags => 0); | |
59b3f563 DM |
766 | |
767 | if ($sock) { | |
768 | close($sock); | |
769 | $newport = $p; | |
770 | $ports->{$p} = $ctime; | |
771 | last; | |
772 | } | |
773 | } | |
774 | ||
775 | my $data = ""; | |
776 | foreach my $p (keys %$ports) { | |
777 | $data .= "$p $ports->{$p}\n"; | |
778 | } | |
779 | ||
780 | file_set_contents($filename, $data); | |
e143e9d8 | 781 | |
59b3f563 DM |
782 | return $newport; |
783 | }; | |
784 | ||
785 | my $p = lock_file($filename, 10, $code); | |
786 | die $@ if $@; | |
787 | ||
788 | die "unable to find free port (${range_start}-${range_end})\n" if !$p; | |
789 | ||
790 | return $p; | |
791 | } | |
792 | ||
793 | sub next_migrate_port { | |
46775218 WB |
794 | my ($family) = @_; |
795 | return next_unused_port(60000, 60050, $family); | |
59b3f563 DM |
796 | } |
797 | ||
798 | sub next_vnc_port { | |
46775218 WB |
799 | my ($family) = @_; |
800 | return next_unused_port(5900, 6000, $family); | |
59b3f563 | 801 | } |
e143e9d8 | 802 | |
2f13cbb5 | 803 | sub next_spice_port { |
46775218 WB |
804 | my ($family) = @_; |
805 | return next_unused_port(61000, 61099, $family); | |
2f13cbb5 DM |
806 | } |
807 | ||
e143e9d8 DM |
808 | # NOTE: NFS syscall can't be interrupted, so alarm does |
809 | # not work to provide timeouts. | |
810 | # from 'man nfs': "Only SIGKILL can interrupt a pending NFS operation" | |
97c8c857 | 811 | # So fork() before using Filesys::Df |
e143e9d8 DM |
812 | sub df { |
813 | my ($path, $timeout) = @_; | |
814 | ||
e143e9d8 DM |
815 | my $res = { |
816 | total => 0, | |
817 | used => 0, | |
818 | avail => 0, | |
819 | }; | |
820 | ||
97c8c857 WB |
821 | my $pipe = IO::Pipe->new(); |
822 | my $child = fork(); | |
823 | if (!defined($child)) { | |
824 | warn "fork failed: $!\n"; | |
825 | return $res; | |
826 | } | |
827 | ||
828 | if (!$child) { | |
829 | $pipe->writer(); | |
830 | eval { | |
831 | my $df = Filesys::Df::df($path, 1); | |
832 | print {$pipe} "$df->{blocks}\n$df->{used}\n$df->{bavail}\n"; | |
833 | $pipe->close(); | |
834 | }; | |
835 | if (my $err = $@) { | |
836 | warn $err; | |
837 | POSIX::_exit(1); | |
e143e9d8 | 838 | } |
97c8c857 WB |
839 | POSIX::_exit(0); |
840 | } | |
841 | ||
842 | $pipe->reader(); | |
843 | ||
844 | my $readvalues = sub { | |
845 | $res->{total} = int(<$pipe>); | |
846 | $res->{used} = int(<$pipe>); | |
847 | $res->{avail} = int(<$pipe>); | |
848 | }; | |
849 | eval { | |
850 | run_with_timeout($timeout, $readvalues); | |
e143e9d8 | 851 | }; |
e143e9d8 | 852 | warn $@ if $@; |
97c8c857 WB |
853 | $pipe->close(); |
854 | kill('KILL', $child); | |
855 | waitpid($child, 0); | |
e143e9d8 DM |
856 | return $res; |
857 | } | |
858 | ||
859 | # UPID helper | |
860 | # We use this to uniquely identify a process. | |
861 | # An 'Unique Process ID' has the following format: | |
862 | # "UPID:$node:$pid:$pstart:$startime:$dtype:$id:$user" | |
863 | ||
864 | sub upid_encode { | |
865 | my $d = shift; | |
866 | ||
19cec230 DM |
867 | # Note: pstart can be > 32bit if uptime > 497 days, so this can result in |
868 | # more that 8 characters for pstart | |
e143e9d8 DM |
869 | return sprintf("UPID:%s:%08X:%08X:%08X:%s:%s:%s:", $d->{node}, $d->{pid}, |
870 | $d->{pstart}, $d->{starttime}, $d->{type}, $d->{id}, | |
871 | $d->{user}); | |
872 | } | |
873 | ||
874 | sub upid_decode { | |
875 | my ($upid, $noerr) = @_; | |
876 | ||
877 | my $res; | |
878 | my $filename; | |
879 | ||
880 | # "UPID:$node:$pid:$pstart:$startime:$dtype:$id:$user" | |
19cec230 DM |
881 | # Note: allow up to 9 characters for pstart (work until 20 years uptime) |
882 | if ($upid =~ m/^UPID:([a-zA-Z0-9]([a-zA-Z0-9\-]*[a-zA-Z0-9])?):([0-9A-Fa-f]{8}):([0-9A-Fa-f]{8,9}):([0-9A-Fa-f]{8}):([^:\s]+):([^:\s]*):([^:\s]+):$/) { | |
e143e9d8 | 883 | $res->{node} = $1; |
3702f038 DM |
884 | $res->{pid} = hex($3); |
885 | $res->{pstart} = hex($4); | |
886 | $res->{starttime} = hex($5); | |
887 | $res->{type} = $6; | |
888 | $res->{id} = $7; | |
889 | $res->{user} = $8; | |
890 | ||
891 | my $subdir = substr($5, 7, 8); | |
e143e9d8 DM |
892 | $filename = "$pvetaskdir/$subdir/$upid"; |
893 | ||
894 | } else { | |
895 | return undef if $noerr; | |
896 | die "unable to parse worker upid '$upid'\n"; | |
897 | } | |
898 | ||
899 | return wantarray ? ($res, $filename) : $res; | |
900 | } | |
901 | ||
902 | sub upid_open { | |
903 | my ($upid) = @_; | |
904 | ||
905 | my ($task, $filename) = upid_decode($upid); | |
906 | ||
907 | my $dirname = dirname($filename); | |
908 | make_path($dirname); | |
909 | ||
910 | my $wwwid = getpwnam('www-data') || | |
911 | die "getpwnam failed"; | |
912 | ||
913 | my $perm = 0640; | |
914 | ||
915 | my $outfh = IO::File->new ($filename, O_WRONLY|O_CREAT|O_EXCL, $perm) || | |
916 | die "unable to create output file '$filename' - $!\n"; | |
2b8e0f12 | 917 | chown $wwwid, -1, $outfh; |
e143e9d8 DM |
918 | |
919 | return $outfh; | |
920 | }; | |
921 | ||
922 | sub upid_read_status { | |
923 | my ($upid) = @_; | |
924 | ||
925 | my ($task, $filename) = upid_decode($upid); | |
926 | my $fh = IO::File->new($filename, "r"); | |
927 | return "unable to open file - $!" if !$fh; | |
cc9121d3 | 928 | my $maxlen = 4096; |
e143e9d8 DM |
929 | sysseek($fh, -$maxlen, 2); |
930 | my $readbuf = ''; | |
931 | my $br = sysread($fh, $readbuf, $maxlen); | |
932 | close($fh); | |
933 | if ($br) { | |
934 | return "unable to extract last line" | |
935 | if $readbuf !~ m/\n?(.+)$/; | |
936 | my $line = $1; | |
937 | if ($line =~ m/^TASK OK$/) { | |
938 | return 'OK'; | |
939 | } elsif ($line =~ m/^TASK ERROR: (.+)$/) { | |
940 | return $1; | |
941 | } else { | |
942 | return "unexpected status"; | |
943 | } | |
944 | } | |
945 | return "unable to read tail (got $br bytes)"; | |
946 | } | |
947 | ||
948 | # useful functions to store comments in config files | |
949 | sub encode_text { | |
950 | my ($text) = @_; | |
951 | ||
952 | # all control and hi-bit characters, and ':' | |
953 | my $unsafe = "^\x20-\x39\x3b-\x7e"; | |
954 | return uri_escape(Encode::encode("utf8", $text), $unsafe); | |
955 | } | |
956 | ||
957 | sub decode_text { | |
958 | my ($data) = @_; | |
959 | ||
960 | return Encode::decode("utf8", uri_unescape($data)); | |
961 | } | |
962 | ||
815b2aba DM |
963 | sub decode_utf8_parameters { |
964 | my ($param) = @_; | |
965 | ||
34ebb226 | 966 | foreach my $p (qw(comment description firstname lastname)) { |
815b2aba DM |
967 | $param->{$p} = decode('utf8', $param->{$p}) if $param->{$p}; |
968 | } | |
969 | ||
970 | return $param; | |
971 | } | |
972 | ||
a413a515 DM |
973 | sub random_ether_addr { |
974 | ||
46a11c00 DM |
975 | my ($seconds, $microseconds) = gettimeofday; |
976 | ||
977 | my $rand = Digest::SHA::sha1_hex($$, rand(), $seconds, $microseconds); | |
a413a515 | 978 | |
85d5625a | 979 | # clear multicast, set local id |
de9a267f | 980 | vec($rand, 0, 8) = (vec($rand, 0, 8) & 0xfe) | 2; |
a413a515 | 981 | |
85d5625a | 982 | return sprintf("%02X:%02X:%02X:%02X:%02X:%02X", unpack("C6", $rand)); |
a413a515 | 983 | } |
e143e9d8 | 984 | |
762e3223 DM |
985 | sub shellquote { |
986 | my $str = shift; | |
987 | ||
7514b23a | 988 | return String::ShellQuote::shell_quote($str); |
762e3223 DM |
989 | } |
990 | ||
65e1d3fc DM |
991 | sub cmd2string { |
992 | my ($cmd) = @_; | |
993 | ||
994 | die "no arguments" if !$cmd; | |
995 | ||
996 | return $cmd if !ref($cmd); | |
997 | ||
998 | my @qa = (); | |
999 | foreach my $arg (@$cmd) { push @qa, shellquote($arg); } | |
1000 | ||
1001 | return join (' ', @qa); | |
1002 | } | |
1003 | ||
e38bcd35 | 1004 | # split an shell argument string into an array, |
f9125663 DM |
1005 | sub split_args { |
1006 | my ($str) = @_; | |
1007 | ||
e38bcd35 | 1008 | return $str ? [ Text::ParseWords::shellwords($str) ] : []; |
f9125663 DM |
1009 | } |
1010 | ||
804b1041 | 1011 | sub dump_logfile { |
eb7e5538 | 1012 | my ($filename, $start, $limit, $filter) = @_; |
804b1041 DM |
1013 | |
1014 | my $lines = []; | |
1015 | my $count = 0; | |
1016 | ||
1017 | my $fh = IO::File->new($filename, "r"); | |
1018 | if (!$fh) { | |
1019 | $count++; | |
1020 | push @$lines, { n => $count, t => "unable to open file - $!"}; | |
1021 | return ($count, $lines); | |
1022 | } | |
1023 | ||
1024 | $start = 0 if !$start; | |
1025 | $limit = 50 if !$limit; | |
1026 | ||
1027 | my $line; | |
eb7e5538 DM |
1028 | |
1029 | if ($filter) { | |
1030 | # duplicate code, so that we do not slow down normal path | |
1031 | while (defined($line = <$fh>)) { | |
1032 | next if $line !~ m/$filter/; | |
1033 | next if $count++ < $start; | |
1034 | next if $limit <= 0; | |
1035 | chomp $line; | |
1036 | push @$lines, { n => $count, t => $line}; | |
1037 | $limit--; | |
1038 | } | |
1039 | } else { | |
1040 | while (defined($line = <$fh>)) { | |
1041 | next if $count++ < $start; | |
1042 | next if $limit <= 0; | |
1043 | chomp $line; | |
1044 | push @$lines, { n => $count, t => $line}; | |
1045 | $limit--; | |
1046 | } | |
804b1041 DM |
1047 | } |
1048 | ||
1049 | close($fh); | |
1050 | ||
6de95a66 DM |
1051 | # HACK: ExtJS store.guaranteeRange() does not like empty array |
1052 | # so we add a line | |
1053 | if (!$count) { | |
1054 | $count++; | |
1055 | push @$lines, { n => $count, t => "no content"}; | |
1056 | } | |
1057 | ||
1058 | return ($count, $lines); | |
1059 | } | |
1060 | ||
1061 | sub dump_journal { | |
1062 | my ($start, $limit, $filter) = @_; | |
1063 | ||
1064 | my $lines = []; | |
1065 | my $count = 0; | |
1066 | ||
1067 | $start = 0 if !$start; | |
1068 | $limit = 50 if !$limit; | |
1069 | ||
1070 | my $parser = sub { | |
1071 | my $line = shift; | |
1072 | ||
1073 | return if $count++ < $start; | |
1074 | return if $limit <= 0; | |
1075 | push @$lines, { n => int($count), t => $line}; | |
1076 | $limit--; | |
1077 | }; | |
1078 | ||
1079 | my $cmd = ['journalctl', '-o', 'short', '--no-pager']; | |
1080 | run_command($cmd, outfunc => $parser); | |
1081 | ||
804b1041 DM |
1082 | # HACK: ExtJS store.guaranteeRange() does not like empty array |
1083 | # so we add a line | |
1084 | if (!$count) { | |
1085 | $count++; | |
1086 | push @$lines, { n => $count, t => "no content"}; | |
1087 | } | |
1088 | ||
1089 | return ($count, $lines); | |
1090 | } | |
1091 | ||
7eb283fb DM |
1092 | sub dir_glob_regex { |
1093 | my ($dir, $regex) = @_; | |
1094 | ||
1095 | my $dh = IO::Dir->new ($dir); | |
1096 | return wantarray ? () : undef if !$dh; | |
1097 | ||
1098 | while (defined(my $tmp = $dh->read)) { | |
1099 | if (my @res = $tmp =~ m/^($regex)$/) { | |
1100 | $dh->close; | |
1101 | return wantarray ? @res : $tmp; | |
1102 | } | |
1103 | } | |
1104 | $dh->close; | |
1105 | ||
1106 | return wantarray ? () : undef; | |
1107 | } | |
1108 | ||
1109 | sub dir_glob_foreach { | |
1110 | my ($dir, $regex, $func) = @_; | |
1111 | ||
1112 | my $dh = IO::Dir->new ($dir); | |
1113 | if (defined $dh) { | |
1114 | while (defined(my $tmp = $dh->read)) { | |
1115 | if (my @res = $tmp =~ m/^($regex)$/) { | |
1116 | &$func (@res); | |
1117 | } | |
1118 | } | |
1119 | } | |
1120 | } | |
1121 | ||
a345b9d5 DM |
1122 | sub assert_if_modified { |
1123 | my ($digest1, $digest2) = @_; | |
1124 | ||
1125 | if ($digest1 && $digest2 && ($digest1 ne $digest2)) { | |
212fc0b7 | 1126 | die "detected modified configuration - file changed by other user? Try again.\n"; |
a345b9d5 DM |
1127 | } |
1128 | } | |
1129 | ||
2d3bca34 DM |
1130 | # Digest for short strings |
1131 | # like FNV32a, but we only return 31 bits (positive numbers) | |
1132 | sub fnv31a { | |
1133 | my ($string) = @_; | |
1134 | ||
1135 | my $hval = 0x811c9dc5; | |
1136 | ||
1137 | foreach my $c (unpack('C*', $string)) { | |
1138 | $hval ^= $c; | |
1139 | $hval += ( | |
1140 | (($hval << 1) ) + | |
1141 | (($hval << 4) ) + | |
1142 | (($hval << 7) ) + | |
1143 | (($hval << 8) ) + | |
1144 | (($hval << 24) ) ); | |
1145 | $hval = $hval & 0xffffffff; | |
1146 | } | |
1147 | return $hval & 0x7fffffff; | |
1148 | } | |
1149 | ||
1150 | sub fnv31a_hex { return sprintf("%X", fnv31a(@_)); } | |
1151 | ||
8df6b794 WB |
1152 | sub unpack_sockaddr_in46 { |
1153 | my ($sin) = @_; | |
1154 | my $family = Socket::sockaddr_family($sin); | |
1155 | my ($port, $host) = ($family == AF_INET6 ? Socket::unpack_sockaddr_in6($sin) | |
1156 | : Socket::unpack_sockaddr_in($sin)); | |
1157 | return ($family, $port, $host); | |
1158 | } | |
1159 | ||
a0b6ef52 WB |
1160 | sub getaddrinfo_all { |
1161 | my ($hostname, @opts) = @_; | |
a956854f | 1162 | my %hints = ( flags => AI_V4MAPPED | AI_ALL, |
a0b6ef52 | 1163 | @opts ); |
a956854f | 1164 | my ($err, @res) = Socket::getaddrinfo($hostname, '0', \%hints); |
a0b6ef52 WB |
1165 | die "failed to get address info for: $hostname: $err\n" if $err; |
1166 | return @res; | |
1167 | } | |
a956854f | 1168 | |
a0b6ef52 WB |
1169 | sub get_host_address_family { |
1170 | my ($hostname, $socktype) = @_; | |
1171 | my @res = getaddrinfo_all($hostname, socktype => $socktype); | |
1172 | return $res[0]->{family}; | |
a956854f WB |
1173 | } |
1174 | ||
b2613777 WB |
1175 | # Parses any sane kind of host, or host+port pair: |
1176 | # The port is always optional and thus may be undef. | |
1177 | sub parse_host_and_port { | |
1178 | my ($address) = @_; | |
1179 | if ($address =~ /^($IPV4RE|[[:alnum:]\-.]+)(?::(\d+))?$/ || # ipv4 or host with optional ':port' | |
1180 | $address =~ /^\[($IPV6RE|$IPV4RE|[[:alnum:]\-.]+)\](?::(\d+))?$/ || # anything in brackets with optional ':port' | |
1181 | $address =~ /^($IPV6RE)(?:\.(\d+))?$/) # ipv6 with optional port separated by dot | |
1182 | { | |
1183 | return ($1, $2, 1); # end with 1 to support simple if(parse...) tests | |
1184 | } | |
1185 | return; # nothing | |
1186 | } | |
1187 | ||
817c6be0 | 1188 | sub unshare($) { |
952fd95e | 1189 | my ($flags) = @_; |
817c6be0 | 1190 | return 0 == syscall(272, $flags); |
952fd95e WB |
1191 | } |
1192 | ||
891b224a WB |
1193 | sub setns($$) { |
1194 | my ($fileno, $nstype) = @_; | |
1195 | return 0 == syscall(308, $fileno, $nstype); | |
1196 | } | |
1197 | ||
e143e9d8 | 1198 | 1; |