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Commit | Line | Data |
---|---|---|
e143e9d8 DM |
1 | package PVE::Tools; |
2 | ||
3 | use strict; | |
c36f332e | 4 | use warnings; |
7e1ee743 | 5 | use POSIX qw(EINTR EEXIST EOPNOTSUPP); |
00dc9d0f | 6 | use IO::Socket::IP; |
a0ecb159 WB |
7 | use Socket qw(AF_INET AF_INET6 AI_ALL AI_V4MAPPED AI_CANONNAME SOCK_DGRAM |
8 | IPPROTO_TCP); | |
e143e9d8 DM |
9 | use IO::Select; |
10 | use File::Basename; | |
11 | use File::Path qw(make_path); | |
97c8c857 WB |
12 | use Filesys::Df (); # don't overwrite our df() |
13 | use IO::Pipe; | |
e143e9d8 | 14 | use IO::File; |
7eb283fb | 15 | use IO::Dir; |
21c56a96 | 16 | use IO::Handle; |
e143e9d8 DM |
17 | use IPC::Open3; |
18 | use Fcntl qw(:DEFAULT :flock); | |
19 | use base 'Exporter'; | |
20 | use URI::Escape; | |
21 | use Encode; | |
568ba6a4 | 22 | use Digest::SHA; |
f2c72fc3 | 23 | use JSON; |
e38bcd35 | 24 | use Text::ParseWords; |
7514b23a | 25 | use String::ShellQuote; |
c38cea65 | 26 | use Time::HiRes qw(usleep gettimeofday tv_interval alarm); |
d9f86d0d | 27 | use Scalar::Util 'weaken'; |
c8e94d4b | 28 | use PVE::Syscall; |
e143e9d8 | 29 | |
57eeea0c DM |
30 | # avoid warning when parsing long hex values with hex() |
31 | no warnings 'portable'; # Support for 64-bit ints required | |
32 | ||
e143e9d8 | 33 | our @EXPORT_OK = qw( |
602ec0cd DM |
34 | $IPV6RE |
35 | $IPV4RE | |
813a5c0d | 36 | lock_file |
493004a2 | 37 | lock_file_full |
813a5c0d DC |
38 | run_command |
39 | file_set_contents | |
e143e9d8 DM |
40 | file_get_contents |
41 | file_read_firstline | |
7eb283fb DM |
42 | dir_glob_regex |
43 | dir_glob_foreach | |
e143e9d8 DM |
44 | split_list |
45 | template_replace | |
46 | safe_print | |
47 | trim | |
48 | extract_param | |
23e0e0d7 | 49 | file_copy |
c0647765 WB |
50 | O_PATH |
51 | O_TMPFILE | |
e143e9d8 DM |
52 | ); |
53 | ||
54 | my $pvelogdir = "/var/log/pve"; | |
55 | my $pvetaskdir = "$pvelogdir/tasks"; | |
56 | ||
57 | mkdir $pvelogdir; | |
58 | mkdir $pvetaskdir; | |
59 | ||
cd9bd252 | 60 | my $IPV4OCTET = "(?:25[0-5]|(?:2[0-4]|1[0-9]|[1-9])?[0-9])"; |
602ec0cd DM |
61 | our $IPV4RE = "(?:(?:$IPV4OCTET\\.){3}$IPV4OCTET)"; |
62 | my $IPV6H16 = "(?:[0-9a-fA-F]{1,4})"; | |
63 | my $IPV6LS32 = "(?:(?:$IPV4RE|$IPV6H16:$IPV6H16))"; | |
64 | ||
65 | our $IPV6RE = "(?:" . | |
66 | "(?:(?:" . "(?:$IPV6H16:){6})$IPV6LS32)|" . | |
67 | "(?:(?:" . "::(?:$IPV6H16:){5})$IPV6LS32)|" . | |
68 | "(?:(?:(?:" . "$IPV6H16)?::(?:$IPV6H16:){4})$IPV6LS32)|" . | |
69 | "(?:(?:(?:(?:$IPV6H16:){0,1}$IPV6H16)?::(?:$IPV6H16:){3})$IPV6LS32)|" . | |
70 | "(?:(?:(?:(?:$IPV6H16:){0,2}$IPV6H16)?::(?:$IPV6H16:){2})$IPV6LS32)|" . | |
71 | "(?:(?:(?:(?:$IPV6H16:){0,3}$IPV6H16)?::(?:$IPV6H16:){1})$IPV6LS32)|" . | |
72 | "(?:(?:(?:(?:$IPV6H16:){0,4}$IPV6H16)?::" . ")$IPV6LS32)|" . | |
73 | "(?:(?:(?:(?:$IPV6H16:){0,5}$IPV6H16)?::" . ")$IPV6H16)|" . | |
74 | "(?:(?:(?:(?:$IPV6H16:){0,6}$IPV6H16)?::" . ")))"; | |
75 | ||
176b1186 WB |
76 | our $IPRE = "(?:$IPV4RE|$IPV6RE)"; |
77 | ||
be8f0477 | 78 | use constant {CLONE_NEWNS => 0x00020000, |
952fd95e WB |
79 | CLONE_NEWUTS => 0x04000000, |
80 | CLONE_NEWIPC => 0x08000000, | |
81 | CLONE_NEWUSER => 0x10000000, | |
82 | CLONE_NEWPID => 0x20000000, | |
be8f0477 | 83 | CLONE_NEWNET => 0x40000000}; |
952fd95e | 84 | |
26598a51 WB |
85 | use constant {O_PATH => 0x00200000, |
86 | O_TMPFILE => 0x00410000}; # This includes O_DIRECTORY | |
44acb12c | 87 | |
0f0990f1 DM |
88 | sub run_with_timeout { |
89 | my ($timeout, $code, @param) = @_; | |
e143e9d8 | 90 | |
0f0990f1 | 91 | die "got timeout\n" if $timeout <= 0; |
e143e9d8 | 92 | |
c38cea65 | 93 | my $prev_alarm = alarm 0; # suspend outer alarm early |
0f0990f1 DM |
94 | |
95 | my $sigcount = 0; | |
e143e9d8 DM |
96 | |
97 | my $res; | |
98 | ||
e143e9d8 | 99 | eval { |
0f0990f1 DM |
100 | local $SIG{ALRM} = sub { $sigcount++; die "got timeout\n"; }; |
101 | local $SIG{PIPE} = sub { $sigcount++; die "broken pipe\n" }; | |
102 | local $SIG{__DIE__}; # see SA bug 4631 | |
e143e9d8 | 103 | |
c38cea65 | 104 | alarm($timeout); |
e143e9d8 | 105 | |
c38cea65 | 106 | eval { $res = &$code(@param); }; |
0f0990f1 DM |
107 | |
108 | alarm(0); # avoid race conditions | |
c38cea65 WB |
109 | |
110 | die $@ if $@; | |
0f0990f1 DM |
111 | }; |
112 | ||
113 | my $err = $@; | |
114 | ||
c38cea65 | 115 | alarm $prev_alarm; |
0f0990f1 | 116 | |
c38cea65 | 117 | # this shouldn't happen anymore? |
0f0990f1 DM |
118 | die "unknown error" if $sigcount && !$err; # seems to happen sometimes |
119 | ||
120 | die $err if $err; | |
121 | ||
122 | return $res; | |
123 | } | |
e143e9d8 | 124 | |
0f0990f1 | 125 | # flock: we use one file handle per process, so lock file |
d9f86d0d WB |
126 | # can be nested multiple times and succeeds for the same process. |
127 | # | |
128 | # Since this is the only way we lock now and we don't have the old | |
129 | # 'lock(); code(); unlock();' pattern anymore we do not actually need to | |
130 | # count how deep we're nesting. Therefore this hash now stores a weak reference | |
131 | # to a boolean telling us whether we already have a lock. | |
0f0990f1 DM |
132 | |
133 | my $lock_handles = {}; | |
134 | ||
493004a2 DM |
135 | sub lock_file_full { |
136 | my ($filename, $timeout, $shared, $code, @param) = @_; | |
0f0990f1 DM |
137 | |
138 | $timeout = 10 if !$timeout; | |
139 | ||
493004a2 DM |
140 | my $mode = $shared ? LOCK_SH : LOCK_EX; |
141 | ||
d9f86d0d | 142 | my $lockhash = ($lock_handles->{$$} //= {}); |
e143e9d8 | 143 | |
d9f86d0d WB |
144 | # Returns a locked file handle. |
145 | my $get_locked_file = sub { | |
146 | my $fh = IO::File->new(">>$filename") | |
147 | or die "can't open file - $!\n"; | |
148 | ||
149 | if (!flock($fh, $mode|LOCK_NB)) { | |
91bae4c0 | 150 | print STDERR "trying to acquire lock...\n"; |
b5d12b08 DM |
151 | my $success; |
152 | while(1) { | |
d9f86d0d | 153 | $success = flock($fh, $mode); |
b5d12b08 DM |
154 | # try again on EINTR (see bug #273) |
155 | if ($success || ($! != EINTR)) { | |
156 | last; | |
157 | } | |
158 | } | |
d9f86d0d WB |
159 | if (!$success) { |
160 | print STDERR " failed\n"; | |
161 | die "can't acquire lock '$filename' - $!\n"; | |
162 | } | |
163 | print STDERR " OK\n"; | |
164 | } | |
165 | ||
166 | return $fh; | |
e143e9d8 DM |
167 | }; |
168 | ||
0f0990f1 | 169 | my $res; |
d9f86d0d WB |
170 | my $checkptr = $lockhash->{$filename}; |
171 | my $check = 0; # This must not go out of scope before running the code. | |
172 | my $local_fh; # This must stay local | |
173 | if (!$checkptr || !$$checkptr) { | |
174 | # We cannot create a weak reference in a single atomic step, so we first | |
175 | # create a false-value, then create a reference to it, then weaken it, | |
176 | # and after successfully locking the file we change the boolean value. | |
177 | # | |
178 | # The reason for this is that if an outer SIGALRM throws an exception | |
179 | # between creating the reference and weakening it, a subsequent call to | |
180 | # lock_file_full() will see a leftover full reference to a valid | |
181 | # variable. This variable must be 0 in order for said call to attempt to | |
182 | # lock the file anew. | |
183 | # | |
184 | # An externally triggered exception elsewhere in the code will cause the | |
185 | # weak reference to become 'undef', and since the file handle is only | |
186 | # stored in the local scope in $local_fh, the file will be closed by | |
187 | # perl's cleanup routines as well. | |
188 | # | |
189 | # This still assumes that an IO::File handle can properly deal with such | |
190 | # exceptions thrown during its own destruction, but that's up to perls | |
191 | # guts now. | |
192 | $lockhash->{$filename} = \$check; | |
193 | weaken $lockhash->{$filename}; | |
194 | $local_fh = eval { run_with_timeout($timeout, $get_locked_file) }; | |
195 | if ($@) { | |
196 | $@ = "can't lock file '$filename' - $@"; | |
197 | return undef; | |
f127adab | 198 | } |
d9f86d0d | 199 | $check = 1; |
e143e9d8 | 200 | } |
d9f86d0d WB |
201 | $res = eval { &$code(@param); }; |
202 | return undef if $@; | |
e143e9d8 DM |
203 | return $res; |
204 | } | |
205 | ||
493004a2 DM |
206 | |
207 | sub lock_file { | |
208 | my ($filename, $timeout, $code, @param) = @_; | |
209 | ||
210 | return lock_file_full($filename, $timeout, 0, $code, @param); | |
211 | } | |
212 | ||
e143e9d8 DM |
213 | sub file_set_contents { |
214 | my ($filename, $data, $perm) = @_; | |
215 | ||
216 | $perm = 0644 if !defined($perm); | |
217 | ||
218 | my $tmpname = "$filename.tmp.$$"; | |
219 | ||
220 | eval { | |
ce338f4f WB |
221 | my ($fh, $tries) = (undef, 0); |
222 | while (!$fh && $tries++ < 3) { | |
223 | $fh = IO::File->new($tmpname, O_WRONLY|O_CREAT|O_EXCL, $perm); | |
224 | if (!$fh && $! == EEXIST) { | |
225 | unlink($tmpname) or die "unable to delete old temp file: $!\n"; | |
226 | } | |
227 | } | |
e143e9d8 DM |
228 | die "unable to open file '$tmpname' - $!\n" if !$fh; |
229 | die "unable to write '$tmpname' - $!\n" unless print $fh $data; | |
230 | die "closing file '$tmpname' failed - $!\n" unless close $fh; | |
231 | }; | |
232 | my $err = $@; | |
233 | ||
234 | if ($err) { | |
235 | unlink $tmpname; | |
236 | die $err; | |
237 | } | |
238 | ||
239 | if (!rename($tmpname, $filename)) { | |
240 | my $msg = "close (rename) atomic file '$filename' failed: $!\n"; | |
241 | unlink $tmpname; | |
813a5c0d | 242 | die $msg; |
e143e9d8 DM |
243 | } |
244 | } | |
245 | ||
246 | sub file_get_contents { | |
247 | my ($filename, $max) = @_; | |
248 | ||
249 | my $fh = IO::File->new($filename, "r") || | |
250 | die "can't open '$filename' - $!\n"; | |
251 | ||
034a8181 | 252 | my $content = safe_read_from($fh, $max, 0, $filename); |
e143e9d8 DM |
253 | |
254 | close $fh; | |
255 | ||
256 | return $content; | |
257 | } | |
258 | ||
23e0e0d7 WL |
259 | sub file_copy { |
260 | my ($filename, $dst, $max, $perm) = @_; | |
261 | ||
262 | file_set_contents ($dst, file_get_contents($filename, $max), $perm); | |
263 | } | |
264 | ||
e143e9d8 DM |
265 | sub file_read_firstline { |
266 | my ($filename) = @_; | |
267 | ||
268 | my $fh = IO::File->new ($filename, "r"); | |
269 | return undef if !$fh; | |
270 | my $res = <$fh>; | |
88955a2e | 271 | chomp $res if $res; |
e143e9d8 DM |
272 | $fh->close; |
273 | return $res; | |
274 | } | |
275 | ||
276 | sub safe_read_from { | |
034a8181 | 277 | my ($fh, $max, $oneline, $filename) = @_; |
e143e9d8 DM |
278 | |
279 | $max = 32768 if !$max; | |
280 | ||
034a8181 DM |
281 | my $subject = defined($filename) ? "file '$filename'" : 'input'; |
282 | ||
e143e9d8 DM |
283 | my $br = 0; |
284 | my $input = ''; | |
285 | my $count; | |
286 | while ($count = sysread($fh, $input, 8192, $br)) { | |
287 | $br += $count; | |
034a8181 | 288 | die "$subject too long - aborting\n" if $br > $max; |
e143e9d8 DM |
289 | if ($oneline && $input =~ m/^(.*)\n/) { |
290 | $input = $1; | |
291 | last; | |
292 | } | |
813a5c0d | 293 | } |
034a8181 | 294 | die "unable to read $subject - $!\n" if !defined($count); |
e143e9d8 DM |
295 | |
296 | return $input; | |
297 | } | |
298 | ||
bd9c3a36 WB |
299 | # The $cmd parameter can be: |
300 | # -) a string | |
301 | # This is generally executed by passing it to the shell with the -c option. | |
302 | # However, it can be executed in one of two ways, depending on whether | |
303 | # there's a pipe involved: | |
304 | # *) with pipe: passed explicitly to bash -c, prefixed with: | |
305 | # set -o pipefail && | |
306 | # *) without a pipe: passed to perl's open3 which uses 'sh -c' | |
307 | # (Note that this may result in two different syntax requirements!) | |
308 | # FIXME? | |
309 | # -) an array of arguments (strings) | |
310 | # Will be executed without interference from a shell. (Parameters are passed | |
311 | # as is, no escape sequences of strings will be touched.) | |
fcdc0cfc WB |
312 | # -) an array of arrays |
313 | # Each array represents a command, and each command's output is piped into | |
314 | # the following command's standard input. | |
315 | # For this a shell command string is created with pipe symbols between each | |
316 | # command. | |
317 | # Each command is a list of strings meant to end up in the final command | |
318 | # unchanged. In order to achieve this, every argument is shell-quoted. | |
319 | # Quoting can be disabled for a particular argument by turning it into a | |
320 | # reference, this allows inserting arbitrary shell options. | |
321 | # For instance: the $cmd [ [ 'echo', 'hello', \'>/dev/null' ] ] will not | |
322 | # produce any output, while the $cmd [ [ 'echo', 'hello', '>/dev/null' ] ] | |
323 | # will literally print: hello >/dev/null | |
e143e9d8 DM |
324 | sub run_command { |
325 | my ($cmd, %param) = @_; | |
326 | ||
327 | my $old_umask; | |
ded47a61 | 328 | my $cmdstr; |
e143e9d8 | 329 | |
fcdc0cfc WB |
330 | if (my $ref = ref($cmd)) { |
331 | if (ref($cmd->[0])) { | |
332 | $cmdstr = 'set -o pipefail && '; | |
333 | my $pipe = ''; | |
334 | foreach my $command (@$cmd) { | |
335 | # concatenate quoted parameters | |
336 | # strings which are passed by reference are NOT shell quoted | |
337 | $cmdstr .= $pipe . join(' ', map { ref($_) ? $$_ : shellquote($_) } @$command); | |
338 | $pipe = ' | '; | |
339 | } | |
1a0c0103 | 340 | $cmd = [ '/bin/bash', '-c', "$cmdstr" ]; |
fcdc0cfc WB |
341 | } else { |
342 | $cmdstr = cmd2string($cmd); | |
343 | } | |
344 | } else { | |
ded47a61 | 345 | $cmdstr = $cmd; |
22d4efe6 | 346 | if ($cmd =~ m/\|/) { |
e0cabd2c DM |
347 | # see 'man bash' for option pipefail |
348 | $cmd = [ '/bin/bash', '-c', "set -o pipefail && $cmd" ]; | |
349 | } else { | |
350 | $cmd = [ $cmd ]; | |
351 | } | |
ded47a61 | 352 | } |
e143e9d8 DM |
353 | |
354 | my $errmsg; | |
355 | my $laststderr; | |
356 | my $timeout; | |
357 | my $oldtimeout; | |
358 | my $pid; | |
38d9aa12 | 359 | my $exitcode = -1; |
e143e9d8 | 360 | |
4630cb95 DM |
361 | my $outfunc; |
362 | my $errfunc; | |
363 | my $logfunc; | |
364 | my $input; | |
365 | my $output; | |
a417477c | 366 | my $afterfork; |
7e826928 | 367 | my $noerr; |
0f3f314e | 368 | my $keeplocale; |
ed61b9d6 | 369 | my $quiet; |
4630cb95 | 370 | |
e143e9d8 | 371 | eval { |
e143e9d8 DM |
372 | |
373 | foreach my $p (keys %param) { | |
374 | if ($p eq 'timeout') { | |
375 | $timeout = $param{$p}; | |
376 | } elsif ($p eq 'umask') { | |
eb9e24df | 377 | $old_umask = umask($param{$p}); |
e143e9d8 DM |
378 | } elsif ($p eq 'errmsg') { |
379 | $errmsg = $param{$p}; | |
e143e9d8 DM |
380 | } elsif ($p eq 'input') { |
381 | $input = $param{$p}; | |
1c50a24a DM |
382 | } elsif ($p eq 'output') { |
383 | $output = $param{$p}; | |
e143e9d8 DM |
384 | } elsif ($p eq 'outfunc') { |
385 | $outfunc = $param{$p}; | |
386 | } elsif ($p eq 'errfunc') { | |
387 | $errfunc = $param{$p}; | |
776fbfa8 DM |
388 | } elsif ($p eq 'logfunc') { |
389 | $logfunc = $param{$p}; | |
a417477c DM |
390 | } elsif ($p eq 'afterfork') { |
391 | $afterfork = $param{$p}; | |
7e826928 TL |
392 | } elsif ($p eq 'noerr') { |
393 | $noerr = $param{$p}; | |
0f3f314e DC |
394 | } elsif ($p eq 'keeplocale') { |
395 | $keeplocale = $param{$p}; | |
ed61b9d6 TL |
396 | } elsif ($p eq 'quiet') { |
397 | $quiet = $param{$p}; | |
e143e9d8 DM |
398 | } else { |
399 | die "got unknown parameter '$p' for run_command\n"; | |
400 | } | |
401 | } | |
402 | ||
4630cb95 DM |
403 | if ($errmsg) { |
404 | my $origerrfunc = $errfunc; | |
405 | $errfunc = sub { | |
406 | if ($laststderr) { | |
407 | if ($origerrfunc) { | |
408 | &$origerrfunc("$laststderr\n"); | |
409 | } else { | |
410 | print STDERR "$laststderr\n" if $laststderr; | |
411 | } | |
412 | } | |
813a5c0d | 413 | $laststderr = shift; |
4630cb95 DM |
414 | }; |
415 | } | |
416 | ||
1c50a24a DM |
417 | my $reader = $output && $output =~ m/^>&/ ? $output : IO::File->new(); |
418 | my $writer = $input && $input =~ m/^<&/ ? $input : IO::File->new(); | |
419 | my $error = IO::File->new(); | |
420 | ||
e143e9d8 DM |
421 | my $orig_pid = $$; |
422 | ||
423 | eval { | |
0f3f314e | 424 | local $ENV{LC_ALL} = 'C' if !$keeplocale; |
e143e9d8 DM |
425 | |
426 | # suppress LVM warnings like: "File descriptor 3 left open"; | |
427 | local $ENV{LVM_SUPPRESS_FD_WARNINGS} = "1"; | |
428 | ||
429 | $pid = open3($writer, $reader, $error, @$cmd) || die $!; | |
f38995ab DM |
430 | |
431 | # if we pipe fron STDIN, open3 closes STDIN, so we we | |
432 | # a perl warning "Filehandle STDIN reopened as GENXYZ .. " | |
433 | # as soon as we open a new file. | |
434 | # to avoid that we open /dev/null | |
435 | if (!ref($writer) && !defined(fileno(STDIN))) { | |
436 | POSIX::close(0); | |
437 | open(STDIN, "</dev/null"); | |
438 | } | |
e143e9d8 DM |
439 | }; |
440 | ||
441 | my $err = $@; | |
442 | ||
443 | # catch exec errors | |
444 | if ($orig_pid != $$) { | |
445 | warn "ERROR: $err"; | |
813a5c0d DC |
446 | POSIX::_exit (1); |
447 | kill ('KILL', $$); | |
e143e9d8 DM |
448 | } |
449 | ||
450 | die $err if $err; | |
451 | ||
452 | local $SIG{ALRM} = sub { die "got timeout\n"; } if $timeout; | |
453 | $oldtimeout = alarm($timeout) if $timeout; | |
454 | ||
a417477c DM |
455 | &$afterfork() if $afterfork; |
456 | ||
f38995ab DM |
457 | if (ref($writer)) { |
458 | print $writer $input if defined $input; | |
459 | close $writer; | |
460 | } | |
e143e9d8 DM |
461 | |
462 | my $select = new IO::Select; | |
f38995ab | 463 | $select->add($reader) if ref($reader); |
e143e9d8 DM |
464 | $select->add($error); |
465 | ||
466 | my $outlog = ''; | |
467 | my $errlog = ''; | |
468 | ||
469 | my $starttime = time(); | |
470 | ||
471 | while ($select->count) { | |
472 | my @handles = $select->can_read(1); | |
473 | ||
474 | foreach my $h (@handles) { | |
475 | my $buf = ''; | |
476 | my $count = sysread ($h, $buf, 4096); | |
477 | if (!defined ($count)) { | |
478 | my $err = $!; | |
479 | kill (9, $pid); | |
480 | waitpid ($pid, 0); | |
481 | die $err; | |
482 | } | |
483 | $select->remove ($h) if !$count; | |
484 | if ($h eq $reader) { | |
776fbfa8 | 485 | if ($outfunc || $logfunc) { |
e143e9d8 DM |
486 | eval { |
487 | $outlog .= $buf; | |
488 | while ($outlog =~ s/^([^\010\r\n]*)(\r|\n|(\010)+|\r\n)//s) { | |
489 | my $line = $1; | |
776fbfa8 DM |
490 | &$outfunc($line) if $outfunc; |
491 | &$logfunc($line) if $logfunc; | |
e143e9d8 DM |
492 | } |
493 | }; | |
494 | my $err = $@; | |
495 | if ($err) { | |
496 | kill (9, $pid); | |
497 | waitpid ($pid, 0); | |
498 | die $err; | |
499 | } | |
ed61b9d6 | 500 | } elsif (!$quiet) { |
e143e9d8 DM |
501 | print $buf; |
502 | *STDOUT->flush(); | |
503 | } | |
504 | } elsif ($h eq $error) { | |
776fbfa8 | 505 | if ($errfunc || $logfunc) { |
e143e9d8 DM |
506 | eval { |
507 | $errlog .= $buf; | |
508 | while ($errlog =~ s/^([^\010\r\n]*)(\r|\n|(\010)+|\r\n)//s) { | |
509 | my $line = $1; | |
776fbfa8 DM |
510 | &$errfunc($line) if $errfunc; |
511 | &$logfunc($line) if $logfunc; | |
e143e9d8 DM |
512 | } |
513 | }; | |
514 | my $err = $@; | |
515 | if ($err) { | |
516 | kill (9, $pid); | |
517 | waitpid ($pid, 0); | |
518 | die $err; | |
519 | } | |
ed61b9d6 | 520 | } elsif (!$quiet) { |
e143e9d8 DM |
521 | print STDERR $buf; |
522 | *STDERR->flush(); | |
523 | } | |
524 | } | |
525 | } | |
526 | } | |
527 | ||
528 | &$outfunc($outlog) if $outfunc && $outlog; | |
776fbfa8 DM |
529 | &$logfunc($outlog) if $logfunc && $outlog; |
530 | ||
e143e9d8 | 531 | &$errfunc($errlog) if $errfunc && $errlog; |
776fbfa8 | 532 | &$logfunc($errlog) if $logfunc && $errlog; |
e143e9d8 DM |
533 | |
534 | waitpid ($pid, 0); | |
813a5c0d | 535 | |
e143e9d8 DM |
536 | if ($? == -1) { |
537 | die "failed to execute\n"; | |
538 | } elsif (my $sig = ($? & 127)) { | |
539 | die "got signal $sig\n"; | |
7e826928 TL |
540 | } elsif ($exitcode = ($? >> 8)) { |
541 | if (!($exitcode == 24 && ($cmdstr =~ m|^(\S+/)?rsync\s|))) { | |
1c50a24a DM |
542 | if ($errmsg && $laststderr) { |
543 | my $lerr = $laststderr; | |
544 | $laststderr = undef; | |
545 | die "$lerr\n"; | |
546 | } | |
7e826928 | 547 | die "exit code $exitcode\n"; |
e143e9d8 | 548 | } |
e143e9d8 DM |
549 | } |
550 | ||
551 | alarm(0); | |
552 | }; | |
553 | ||
554 | my $err = $@; | |
555 | ||
556 | alarm(0); | |
557 | ||
4630cb95 DM |
558 | if ($errmsg && $laststderr) { |
559 | &$errfunc(undef); # flush laststderr | |
560 | } | |
e143e9d8 DM |
561 | |
562 | umask ($old_umask) if defined($old_umask); | |
563 | ||
564 | alarm($oldtimeout) if $oldtimeout; | |
565 | ||
566 | if ($err) { | |
567 | if ($pid && ($err eq "got timeout\n")) { | |
568 | kill (9, $pid); | |
569 | waitpid ($pid, 0); | |
570 | die "command '$cmdstr' failed: $err"; | |
571 | } | |
572 | ||
573 | if ($errmsg) { | |
adbc988d | 574 | $err =~ s/^usermod:\s*// if $cmdstr =~ m|^(\S+/)?usermod\s|; |
e143e9d8 | 575 | die "$errmsg: $err"; |
7e826928 | 576 | } elsif(!$noerr) { |
e143e9d8 DM |
577 | die "command '$cmdstr' failed: $err"; |
578 | } | |
579 | } | |
1c50a24a | 580 | |
7e826928 | 581 | return $exitcode; |
e143e9d8 DM |
582 | } |
583 | ||
2d38b8a1 TL |
584 | # Run a command with a tcp socket as standard input. |
585 | sub pipe_socket_to_command { | |
586 | my ($cmd, $ip, $port) = @_; | |
587 | ||
588 | my $params = { | |
589 | Listen => 1, | |
590 | ReuseAddr => 1, | |
591 | Proto => &Socket::IPPROTO_TCP, | |
592 | GetAddrInfoFlags => 0, | |
593 | LocalAddr => $ip, | |
594 | LocalPort => $port, | |
595 | }; | |
596 | my $socket = IO::Socket::IP->new(%$params) or die "failed to open socket: $!\n"; | |
597 | ||
598 | print "$ip\n$port\n"; # tell remote where to connect | |
599 | *STDOUT->flush(); | |
600 | ||
601 | alarm 0; | |
602 | local $SIG{ALRM} = sub { die "timed out waiting for client\n" }; | |
603 | alarm 30; | |
604 | my $client = $socket->accept; # Wait for a client | |
605 | alarm 0; | |
606 | close($socket); | |
607 | ||
608 | # We want that the command talks over the TCP socket and takes | |
609 | # ownership of it, so that when it closes it the connection is | |
610 | # terminated, so we need to be able to close the socket. So we | |
611 | # can't really use PVE::Tools::run_command(). | |
612 | my $pid = fork() // die "fork failed: $!\n"; | |
613 | if (!$pid) { | |
614 | POSIX::dup2(fileno($client), 0); | |
615 | POSIX::dup2(fileno($client), 1); | |
616 | close($client); | |
617 | exec {$cmd->[0]} @$cmd or do { | |
618 | warn "exec failed: $!\n"; | |
619 | POSIX::_exit(1); | |
620 | }; | |
621 | } | |
622 | ||
623 | close($client); | |
624 | if (waitpid($pid, 0) != $pid) { | |
625 | kill(15 => $pid); # if we got interrupted terminate the child | |
626 | my $count = 0; | |
627 | while (waitpid($pid, POSIX::WNOHANG) != $pid) { | |
628 | usleep(100000); | |
629 | $count++; | |
630 | kill(9 => $pid), last if $count > 300; # 30 second timeout | |
631 | } | |
632 | } | |
633 | if (my $sig = ($? & 127)) { | |
634 | die "got signal $sig\n"; | |
635 | } elsif (my $exitcode = ($? >> 8)) { | |
636 | die "exit code $exitcode\n"; | |
637 | } | |
638 | ||
639 | return undef; | |
640 | } | |
641 | ||
e143e9d8 DM |
642 | sub split_list { |
643 | my $listtxt = shift || ''; | |
644 | ||
d2b0374d | 645 | return split (/\0/, $listtxt) if $listtxt =~ m/\0/; |
813a5c0d | 646 | |
d2b0374d | 647 | $listtxt =~ s/[,;]/ /g; |
e143e9d8 DM |
648 | $listtxt =~ s/^\s+//; |
649 | ||
650 | my @data = split (/\s+/, $listtxt); | |
651 | ||
652 | return @data; | |
653 | } | |
654 | ||
655 | sub trim { | |
656 | my $txt = shift; | |
657 | ||
658 | return $txt if !defined($txt); | |
659 | ||
660 | $txt =~ s/^\s+//; | |
661 | $txt =~ s/\s+$//; | |
813a5c0d | 662 | |
e143e9d8 DM |
663 | return $txt; |
664 | } | |
665 | ||
666 | # simple uri templates like "/vms/{vmid}" | |
667 | sub template_replace { | |
668 | my ($tmpl, $data) = @_; | |
669 | ||
3250f5c7 | 670 | return $tmpl if !$tmpl; |
813a5c0d | 671 | |
e143e9d8 DM |
672 | my $res = ''; |
673 | while ($tmpl =~ m/([^{]+)?({([^}]+)})?/g) { | |
674 | $res .= $1 if $1; | |
675 | $res .= ($data->{$3} || '-') if $2; | |
676 | } | |
677 | return $res; | |
678 | } | |
679 | ||
680 | sub safe_print { | |
681 | my ($filename, $fh, $data) = @_; | |
682 | ||
683 | return if !$data; | |
684 | ||
685 | my $res = print $fh $data; | |
686 | ||
687 | die "write to '$filename' failed\n" if !$res; | |
688 | } | |
689 | ||
690 | sub debmirrors { | |
691 | ||
692 | return { | |
693 | 'at' => 'ftp.at.debian.org', | |
694 | 'au' => 'ftp.au.debian.org', | |
695 | 'be' => 'ftp.be.debian.org', | |
696 | 'bg' => 'ftp.bg.debian.org', | |
697 | 'br' => 'ftp.br.debian.org', | |
698 | 'ca' => 'ftp.ca.debian.org', | |
699 | 'ch' => 'ftp.ch.debian.org', | |
700 | 'cl' => 'ftp.cl.debian.org', | |
701 | 'cz' => 'ftp.cz.debian.org', | |
702 | 'de' => 'ftp.de.debian.org', | |
703 | 'dk' => 'ftp.dk.debian.org', | |
704 | 'ee' => 'ftp.ee.debian.org', | |
705 | 'es' => 'ftp.es.debian.org', | |
706 | 'fi' => 'ftp.fi.debian.org', | |
707 | 'fr' => 'ftp.fr.debian.org', | |
708 | 'gr' => 'ftp.gr.debian.org', | |
709 | 'hk' => 'ftp.hk.debian.org', | |
710 | 'hr' => 'ftp.hr.debian.org', | |
711 | 'hu' => 'ftp.hu.debian.org', | |
712 | 'ie' => 'ftp.ie.debian.org', | |
713 | 'is' => 'ftp.is.debian.org', | |
714 | 'it' => 'ftp.it.debian.org', | |
715 | 'jp' => 'ftp.jp.debian.org', | |
716 | 'kr' => 'ftp.kr.debian.org', | |
717 | 'mx' => 'ftp.mx.debian.org', | |
718 | 'nl' => 'ftp.nl.debian.org', | |
719 | 'no' => 'ftp.no.debian.org', | |
720 | 'nz' => 'ftp.nz.debian.org', | |
721 | 'pl' => 'ftp.pl.debian.org', | |
722 | 'pt' => 'ftp.pt.debian.org', | |
723 | 'ro' => 'ftp.ro.debian.org', | |
724 | 'ru' => 'ftp.ru.debian.org', | |
725 | 'se' => 'ftp.se.debian.org', | |
726 | 'si' => 'ftp.si.debian.org', | |
727 | 'sk' => 'ftp.sk.debian.org', | |
728 | 'tr' => 'ftp.tr.debian.org', | |
729 | 'tw' => 'ftp.tw.debian.org', | |
730 | 'gb' => 'ftp.uk.debian.org', | |
731 | 'us' => 'ftp.us.debian.org', | |
732 | }; | |
733 | } | |
734 | ||
910d57b0 DM |
735 | my $keymaphash = { |
736 | 'dk' => ['Danish', 'da', 'qwerty/dk-latin1.kmap.gz', 'dk', 'nodeadkeys'], | |
737 | 'de' => ['German', 'de', 'qwertz/de-latin1-nodeadkeys.kmap.gz', 'de', 'nodeadkeys' ], | |
813a5c0d | 738 | 'de-ch' => ['Swiss-German', 'de-ch', 'qwertz/sg-latin1.kmap.gz', 'ch', 'de_nodeadkeys' ], |
5a5ca434 DM |
739 | 'en-gb' => ['United Kingdom', 'en-gb', 'qwerty/uk.kmap.gz' , 'gb', undef], |
740 | 'en-us' => ['U.S. English', 'en-us', 'qwerty/us-latin1.kmap.gz', 'us', undef ], | |
910d57b0 DM |
741 | 'es' => ['Spanish', 'es', 'qwerty/es.kmap.gz', 'es', 'nodeadkeys'], |
742 | #'et' => [], # Ethopia or Estonia ?? | |
743 | 'fi' => ['Finnish', 'fi', 'qwerty/fi-latin1.kmap.gz', 'fi', 'nodeadkeys'], | |
744 | #'fo' => ['Faroe Islands', 'fo', ???, 'fo', 'nodeadkeys'], | |
745 | 'fr' => ['French', 'fr', 'azerty/fr-latin1.kmap.gz', 'fr', 'nodeadkeys'], | |
746 | 'fr-be' => ['Belgium-French', 'fr-be', 'azerty/be2-latin1.kmap.gz', 'be', 'nodeadkeys'], | |
747 | 'fr-ca' => ['Canada-French', 'fr-ca', 'qwerty/cf.kmap.gz', 'ca', 'fr-legacy'], | |
748 | 'fr-ch' => ['Swiss-French', 'fr-ch', 'qwertz/fr_CH-latin1.kmap.gz', 'ch', 'fr_nodeadkeys'], | |
749 | #'hr' => ['Croatia', 'hr', 'qwertz/croat.kmap.gz', 'hr', ??], # latin2? | |
750 | 'hu' => ['Hungarian', 'hu', 'qwertz/hu.kmap.gz', 'hu', undef], | |
751 | 'is' => ['Icelandic', 'is', 'qwerty/is-latin1.kmap.gz', 'is', 'nodeadkeys'], | |
752 | 'it' => ['Italian', 'it', 'qwerty/it2.kmap.gz', 'it', 'nodeadkeys'], | |
753 | 'jp' => ['Japanese', 'ja', 'qwerty/jp106.kmap.gz', 'jp', undef], | |
754 | 'lt' => ['Lithuanian', 'lt', 'qwerty/lt.kmap.gz', 'lt', 'std'], | |
755 | #'lv' => ['Latvian', 'lv', 'qwerty/lv-latin4.kmap.gz', 'lv', ??], # latin4 or latin7? | |
756 | 'mk' => ['Macedonian', 'mk', 'qwerty/mk.kmap.gz', 'mk', 'nodeadkeys'], | |
757 | 'nl' => ['Dutch', 'nl', 'qwerty/nl.kmap.gz', 'nl', undef], | |
758 | #'nl-be' => ['Belgium-Dutch', 'nl-be', ?, ?, ?], | |
813a5c0d | 759 | 'no' => ['Norwegian', 'no', 'qwerty/no-latin1.kmap.gz', 'no', 'nodeadkeys'], |
910d57b0 DM |
760 | 'pl' => ['Polish', 'pl', 'qwerty/pl.kmap.gz', 'pl', undef], |
761 | 'pt' => ['Portuguese', 'pt', 'qwerty/pt-latin1.kmap.gz', 'pt', 'nodeadkeys'], | |
762 | 'pt-br' => ['Brazil-Portuguese', 'pt-br', 'qwerty/br-latin1.kmap.gz', 'br', 'nodeadkeys'], | |
763 | #'ru' => ['Russian', 'ru', 'qwerty/ru.kmap.gz', 'ru', undef], # dont know? | |
764 | 'si' => ['Slovenian', 'sl', 'qwertz/slovene.kmap.gz', 'si', undef], | |
9934cd0b | 765 | 'se' => ['Swedish', 'sv', 'qwerty/se-latin1.kmap.gz', 'se', 'nodeadkeys'], |
910d57b0 | 766 | #'th' => [], |
c10cc112 | 767 | 'tr' => ['Turkish', 'tr', 'qwerty/trq.kmap.gz', 'tr', undef], |
910d57b0 DM |
768 | }; |
769 | ||
770 | my $kvmkeymaparray = []; | |
0a7de820 | 771 | foreach my $lc (sort keys %$keymaphash) { |
910d57b0 DM |
772 | push @$kvmkeymaparray, $keymaphash->{$lc}->[1]; |
773 | } | |
774 | ||
e143e9d8 | 775 | sub kvmkeymaps { |
910d57b0 DM |
776 | return $keymaphash; |
777 | } | |
778 | ||
779 | sub kvmkeymaplist { | |
780 | return $kvmkeymaparray; | |
e143e9d8 DM |
781 | } |
782 | ||
783 | sub extract_param { | |
784 | my ($param, $key) = @_; | |
785 | ||
786 | my $res = $param->{$key}; | |
787 | delete $param->{$key}; | |
788 | ||
789 | return $res; | |
790 | } | |
791 | ||
eb7047f6 | 792 | # Note: we use this to wait until vncterm/spiceterm is ready |
ec6d95b4 | 793 | sub wait_for_vnc_port { |
590b924e | 794 | my ($port, $family, $timeout) = @_; |
ec6d95b4 DM |
795 | |
796 | $timeout = 5 if !$timeout; | |
eb7047f6 DM |
797 | my $sleeptime = 0; |
798 | my $starttime = [gettimeofday]; | |
799 | my $elapsed; | |
ec6d95b4 | 800 | |
590b924e TL |
801 | my $cmd = ['/bin/ss', '-Htln', "sport = :$port"]; |
802 | push @$cmd, $family == AF_INET6 ? '-6' : '-4' if defined($family); | |
803 | ||
9a41a7b7 | 804 | my $found; |
eb7047f6 | 805 | while (($elapsed = tv_interval($starttime)) < $timeout) { |
9a41a7b7 | 806 | # -Htln = don't print header, tcp, listening sockets only, numeric ports |
590b924e | 807 | run_command($cmd, outfunc => sub { |
9a41a7b7 TL |
808 | my $line = shift; |
809 | if ($line =~ m/^LISTEN\s+\d+\s+\d+\s+\S+:(\d+)\s/) { | |
810 | $found = 1 if ($port == $1); | |
ec6d95b4 | 811 | } |
9a41a7b7 TL |
812 | }); |
813 | return 1 if $found; | |
eb7047f6 DM |
814 | $sleeptime += 100000 if $sleeptime < 1000000; |
815 | usleep($sleeptime); | |
ec6d95b4 DM |
816 | } |
817 | ||
8fd0d634 | 818 | die "Timeout while waiting for port '$port' to get ready!\n"; |
ec6d95b4 DM |
819 | } |
820 | ||
59b3f563 | 821 | sub next_unused_port { |
c14960cc | 822 | my ($range_start, $range_end, $family, $address) = @_; |
59b3f563 DM |
823 | |
824 | # We use a file to register allocated ports. | |
825 | # Those registrations expires after $expiretime. | |
826 | # We use this to avoid race conditions between | |
827 | # allocation and use of ports. | |
828 | ||
829 | my $filename = "/var/tmp/pve-reserved-ports"; | |
e143e9d8 | 830 | |
59b3f563 | 831 | my $code = sub { |
e143e9d8 | 832 | |
59b3f563 DM |
833 | my $expiretime = 5; |
834 | my $ctime = time(); | |
e143e9d8 | 835 | |
59b3f563 DM |
836 | my $ports = {}; |
837 | ||
838 | if (my $fh = IO::File->new ($filename, "r")) { | |
839 | while (my $line = <$fh>) { | |
840 | if ($line =~ m/^(\d+)\s(\d+)$/) { | |
841 | my ($port, $timestamp) = ($1, $2); | |
842 | if (($timestamp + $expiretime) > $ctime) { | |
843 | $ports->{$port} = $timestamp; # not expired | |
813a5c0d | 844 | } |
59b3f563 DM |
845 | } |
846 | } | |
e143e9d8 | 847 | } |
813a5c0d | 848 | |
59b3f563 | 849 | my $newport; |
c14960cc WB |
850 | my %sockargs = (Listen => 5, |
851 | ReuseAddr => 1, | |
852 | Family => $family, | |
a0ecb159 | 853 | Proto => IPPROTO_TCP, |
c14960cc WB |
854 | GetAddrInfoFlags => 0); |
855 | $sockargs{LocalAddr} = $address if defined($address); | |
59b3f563 DM |
856 | |
857 | for (my $p = $range_start; $p < $range_end; $p++) { | |
858 | next if $ports->{$p}; # reserved | |
859 | ||
c14960cc WB |
860 | $sockargs{LocalPort} = $p; |
861 | my $sock = IO::Socket::IP->new(%sockargs); | |
59b3f563 DM |
862 | |
863 | if ($sock) { | |
864 | close($sock); | |
865 | $newport = $p; | |
866 | $ports->{$p} = $ctime; | |
867 | last; | |
868 | } | |
869 | } | |
813a5c0d | 870 | |
59b3f563 DM |
871 | my $data = ""; |
872 | foreach my $p (keys %$ports) { | |
873 | $data .= "$p $ports->{$p}\n"; | |
874 | } | |
813a5c0d | 875 | |
59b3f563 | 876 | file_set_contents($filename, $data); |
e143e9d8 | 877 | |
59b3f563 DM |
878 | return $newport; |
879 | }; | |
880 | ||
3c476ed5 | 881 | my $p = lock_file('/var/lock/pve-ports.lck', 10, $code); |
59b3f563 | 882 | die $@ if $@; |
813a5c0d | 883 | |
59b3f563 DM |
884 | die "unable to find free port (${range_start}-${range_end})\n" if !$p; |
885 | ||
886 | return $p; | |
887 | } | |
888 | ||
889 | sub next_migrate_port { | |
c14960cc WB |
890 | my ($family, $address) = @_; |
891 | return next_unused_port(60000, 60050, $family, $address); | |
59b3f563 DM |
892 | } |
893 | ||
894 | sub next_vnc_port { | |
c14960cc WB |
895 | my ($family, $address) = @_; |
896 | return next_unused_port(5900, 6000, $family, $address); | |
59b3f563 | 897 | } |
e143e9d8 | 898 | |
2f13cbb5 | 899 | sub next_spice_port { |
c14960cc WB |
900 | my ($family, $address) = @_; |
901 | return next_unused_port(61000, 61099, $family, $address); | |
2f13cbb5 DM |
902 | } |
903 | ||
893ec6f2 WB |
904 | sub must_stringify { |
905 | my ($value) = @_; | |
906 | eval { $value = "$value" }; | |
907 | return "error turning value into a string: $@" if $@; | |
908 | return $value; | |
909 | } | |
910 | ||
72fba911 EK |
911 | # sigkill after $timeout a $sub running in a fork if it can't write a pipe |
912 | # the $sub has to return a single scalar | |
913 | sub run_fork_with_timeout { | |
914 | my ($timeout, $sub) = @_; | |
915 | ||
916 | my $res; | |
917 | my $error; | |
918 | my $pipe_out = IO::Pipe->new(); | |
72fba911 EK |
919 | |
920 | # disable pending alarms, save their remaining time | |
921 | my $prev_alarm = alarm 0; | |
922 | ||
eead1cca | 923 | # avoid leaving a zombie if the parent gets interrupted |
72fba911 | 924 | my $sig_received; |
eead1cca | 925 | local $SIG{INT} = sub { $sig_received++; }; |
72fba911 EK |
926 | |
927 | my $child = fork(); | |
928 | if (!defined($child)) { | |
929 | die "fork failed: $!\n"; | |
930 | return $res; | |
931 | } | |
932 | ||
933 | if (!$child) { | |
934 | $pipe_out->writer(); | |
72fba911 EK |
935 | |
936 | eval { | |
937 | $res = $sub->(); | |
f2c72fc3 | 938 | print {$pipe_out} encode_json({ result => $res }); |
72fba911 EK |
939 | $pipe_out->flush(); |
940 | }; | |
941 | if (my $err = $@) { | |
893ec6f2 | 942 | print {$pipe_out} encode_json({ error => must_stringify($err) }); |
f2c72fc3 | 943 | $pipe_out->flush(); |
72fba911 EK |
944 | POSIX::_exit(1); |
945 | } | |
946 | POSIX::_exit(0); | |
947 | } | |
948 | ||
949 | $pipe_out->reader(); | |
72fba911 EK |
950 | |
951 | my $readvalues = sub { | |
952 | local $/ = undef; | |
f2c72fc3 TL |
953 | my $child_res = decode_json(scalar<$pipe_out>); |
954 | $res = $child_res->{result}; | |
955 | $error = $child_res->{error}; | |
72fba911 EK |
956 | }; |
957 | eval { | |
a2d049af WB |
958 | if (defined($timeout)) { |
959 | run_with_timeout($timeout, $readvalues); | |
960 | } else { | |
961 | $readvalues->(); | |
962 | } | |
72fba911 EK |
963 | }; |
964 | warn $@ if $@; | |
965 | $pipe_out->close(); | |
72fba911 EK |
966 | kill('KILL', $child); |
967 | waitpid($child, 0); | |
968 | ||
969 | alarm $prev_alarm; | |
970 | die "interrupted by unexpected signal\n" if $sig_received; | |
971 | ||
972 | die $error if $error; | |
973 | return $res; | |
974 | } | |
975 | ||
a2d049af WB |
976 | sub run_fork { |
977 | my ($code) = @_; | |
978 | return run_fork_with_timeout(undef, $code); | |
979 | } | |
980 | ||
813a5c0d | 981 | # NOTE: NFS syscall can't be interrupted, so alarm does |
e143e9d8 DM |
982 | # not work to provide timeouts. |
983 | # from 'man nfs': "Only SIGKILL can interrupt a pending NFS operation" | |
97c8c857 | 984 | # So fork() before using Filesys::Df |
e143e9d8 DM |
985 | sub df { |
986 | my ($path, $timeout) = @_; | |
987 | ||
4fdc9659 | 988 | my $df = sub { return Filesys::Df::df($path, 1) }; |
97c8c857 | 989 | |
4fdc9659 TL |
990 | my $res = eval { run_fork_with_timeout($timeout, $df) } // {}; |
991 | warn $@ if $@; | |
97c8c857 | 992 | |
fd58bb2b DC |
993 | # untaint the values |
994 | my ($blocks, $used, $bavail) = map { defined($_) ? (/^(\d+)$/) : 0 } | |
995 | $res->@{qw(blocks used bavail)}; | |
996 | ||
4fdc9659 | 997 | return { |
fd58bb2b DC |
998 | total => $blocks, |
999 | used => $used, | |
1000 | avail => $bavail, | |
e143e9d8 | 1001 | }; |
e143e9d8 DM |
1002 | } |
1003 | ||
62635f92 DM |
1004 | sub du { |
1005 | my ($path, $timeout) = @_; | |
1006 | ||
1007 | my $size; | |
1008 | ||
1009 | $timeout //= 10; | |
1010 | ||
1011 | my $parser = sub { | |
1012 | my $line = shift; | |
1013 | ||
1014 | if ($line =~ m/^(\d+)\s+total$/) { | |
1015 | $size = $1; | |
1016 | } | |
1017 | }; | |
1018 | ||
1019 | run_command(['du', '-scb', $path], outfunc => $parser, timeout => $timeout); | |
1020 | ||
1021 | return $size; | |
1022 | } | |
1023 | ||
e143e9d8 DM |
1024 | # UPID helper |
1025 | # We use this to uniquely identify a process. | |
813a5c0d | 1026 | # An 'Unique Process ID' has the following format: |
e143e9d8 DM |
1027 | # "UPID:$node:$pid:$pstart:$startime:$dtype:$id:$user" |
1028 | ||
1029 | sub upid_encode { | |
1030 | my $d = shift; | |
1031 | ||
19cec230 DM |
1032 | # Note: pstart can be > 32bit if uptime > 497 days, so this can result in |
1033 | # more that 8 characters for pstart | |
813a5c0d DC |
1034 | return sprintf("UPID:%s:%08X:%08X:%08X:%s:%s:%s:", $d->{node}, $d->{pid}, |
1035 | $d->{pstart}, $d->{starttime}, $d->{type}, $d->{id}, | |
e143e9d8 DM |
1036 | $d->{user}); |
1037 | } | |
1038 | ||
1039 | sub upid_decode { | |
1040 | my ($upid, $noerr) = @_; | |
1041 | ||
1042 | my $res; | |
1043 | my $filename; | |
1044 | ||
1045 | # "UPID:$node:$pid:$pstart:$startime:$dtype:$id:$user" | |
19cec230 DM |
1046 | # Note: allow up to 9 characters for pstart (work until 20 years uptime) |
1047 | 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 | 1048 | $res->{node} = $1; |
3702f038 DM |
1049 | $res->{pid} = hex($3); |
1050 | $res->{pstart} = hex($4); | |
1051 | $res->{starttime} = hex($5); | |
1052 | $res->{type} = $6; | |
1053 | $res->{id} = $7; | |
1054 | $res->{user} = $8; | |
1055 | ||
1056 | my $subdir = substr($5, 7, 8); | |
e143e9d8 DM |
1057 | $filename = "$pvetaskdir/$subdir/$upid"; |
1058 | ||
1059 | } else { | |
1060 | return undef if $noerr; | |
1061 | die "unable to parse worker upid '$upid'\n"; | |
1062 | } | |
1063 | ||
1064 | return wantarray ? ($res, $filename) : $res; | |
1065 | } | |
1066 | ||
1067 | sub upid_open { | |
1068 | my ($upid) = @_; | |
1069 | ||
813a5c0d | 1070 | my ($task, $filename) = upid_decode($upid); |
e143e9d8 DM |
1071 | |
1072 | my $dirname = dirname($filename); | |
1073 | make_path($dirname); | |
1074 | ||
1075 | my $wwwid = getpwnam('www-data') || | |
1076 | die "getpwnam failed"; | |
1077 | ||
1078 | my $perm = 0640; | |
813a5c0d | 1079 | |
e143e9d8 DM |
1080 | my $outfh = IO::File->new ($filename, O_WRONLY|O_CREAT|O_EXCL, $perm) || |
1081 | die "unable to create output file '$filename' - $!\n"; | |
2b8e0f12 | 1082 | chown $wwwid, -1, $outfh; |
e143e9d8 DM |
1083 | |
1084 | return $outfh; | |
1085 | }; | |
1086 | ||
1087 | sub upid_read_status { | |
1088 | my ($upid) = @_; | |
1089 | ||
1090 | my ($task, $filename) = upid_decode($upid); | |
1091 | my $fh = IO::File->new($filename, "r"); | |
1092 | return "unable to open file - $!" if !$fh; | |
cc9121d3 | 1093 | my $maxlen = 4096; |
e143e9d8 DM |
1094 | sysseek($fh, -$maxlen, 2); |
1095 | my $readbuf = ''; | |
1096 | my $br = sysread($fh, $readbuf, $maxlen); | |
1097 | close($fh); | |
1098 | if ($br) { | |
1099 | return "unable to extract last line" | |
1100 | if $readbuf !~ m/\n?(.+)$/; | |
1101 | my $line = $1; | |
1102 | if ($line =~ m/^TASK OK$/) { | |
1103 | return 'OK'; | |
1104 | } elsif ($line =~ m/^TASK ERROR: (.+)$/) { | |
1105 | return $1; | |
1106 | } else { | |
1107 | return "unexpected status"; | |
1108 | } | |
1109 | } | |
1110 | return "unable to read tail (got $br bytes)"; | |
1111 | } | |
1112 | ||
813a5c0d | 1113 | # useful functions to store comments in config files |
e143e9d8 DM |
1114 | sub encode_text { |
1115 | my ($text) = @_; | |
1116 | ||
1117 | # all control and hi-bit characters, and ':' | |
1118 | my $unsafe = "^\x20-\x39\x3b-\x7e"; | |
1119 | return uri_escape(Encode::encode("utf8", $text), $unsafe); | |
1120 | } | |
1121 | ||
1122 | sub decode_text { | |
1123 | my ($data) = @_; | |
1124 | ||
1125 | return Encode::decode("utf8", uri_unescape($data)); | |
1126 | } | |
1127 | ||
6d46baf6 DM |
1128 | # depreciated - do not use! |
1129 | # we now decode all parameters by default | |
815b2aba DM |
1130 | sub decode_utf8_parameters { |
1131 | my ($param) = @_; | |
1132 | ||
34ebb226 | 1133 | foreach my $p (qw(comment description firstname lastname)) { |
815b2aba DM |
1134 | $param->{$p} = decode('utf8', $param->{$p}) if $param->{$p}; |
1135 | } | |
1136 | ||
1137 | return $param; | |
1138 | } | |
1139 | ||
a413a515 | 1140 | sub random_ether_addr { |
12392173 | 1141 | my ($prefix) = @_; |
a413a515 | 1142 | |
46a11c00 DM |
1143 | my ($seconds, $microseconds) = gettimeofday; |
1144 | ||
d743b69c | 1145 | my $rand = Digest::SHA::sha1($$, rand(), $seconds, $microseconds); |
a413a515 | 1146 | |
85d5625a | 1147 | # clear multicast, set local id |
de9a267f | 1148 | vec($rand, 0, 8) = (vec($rand, 0, 8) & 0xfe) | 2; |
a413a515 | 1149 | |
12392173 WB |
1150 | my $addr = sprintf("%02X:%02X:%02X:%02X:%02X:%02X", unpack("C6", $rand)); |
1151 | if (defined($prefix)) { | |
1152 | $addr = uc($prefix) . substr($addr, length($prefix)); | |
1153 | } | |
1154 | return $addr; | |
a413a515 | 1155 | } |
e143e9d8 | 1156 | |
762e3223 DM |
1157 | sub shellquote { |
1158 | my $str = shift; | |
1159 | ||
7514b23a | 1160 | return String::ShellQuote::shell_quote($str); |
762e3223 DM |
1161 | } |
1162 | ||
65e1d3fc DM |
1163 | sub cmd2string { |
1164 | my ($cmd) = @_; | |
1165 | ||
1166 | die "no arguments" if !$cmd; | |
1167 | ||
1168 | return $cmd if !ref($cmd); | |
1169 | ||
1170 | my @qa = (); | |
1171 | foreach my $arg (@$cmd) { push @qa, shellquote($arg); } | |
1172 | ||
1173 | return join (' ', @qa); | |
1174 | } | |
1175 | ||
e38bcd35 | 1176 | # split an shell argument string into an array, |
f9125663 DM |
1177 | sub split_args { |
1178 | my ($str) = @_; | |
1179 | ||
e38bcd35 | 1180 | return $str ? [ Text::ParseWords::shellwords($str) ] : []; |
f9125663 DM |
1181 | } |
1182 | ||
804b1041 | 1183 | sub dump_logfile { |
eb7e5538 | 1184 | my ($filename, $start, $limit, $filter) = @_; |
804b1041 DM |
1185 | |
1186 | my $lines = []; | |
1187 | my $count = 0; | |
1188 | ||
1189 | my $fh = IO::File->new($filename, "r"); | |
813a5c0d | 1190 | if (!$fh) { |
804b1041 DM |
1191 | $count++; |
1192 | push @$lines, { n => $count, t => "unable to open file - $!"}; | |
1193 | return ($count, $lines); | |
1194 | } | |
1195 | ||
1196 | $start = 0 if !$start; | |
1197 | $limit = 50 if !$limit; | |
1198 | ||
1199 | my $line; | |
eb7e5538 DM |
1200 | |
1201 | if ($filter) { | |
1202 | # duplicate code, so that we do not slow down normal path | |
1203 | while (defined($line = <$fh>)) { | |
1204 | next if $line !~ m/$filter/; | |
1205 | next if $count++ < $start; | |
1206 | next if $limit <= 0; | |
1207 | chomp $line; | |
1208 | push @$lines, { n => $count, t => $line}; | |
1209 | $limit--; | |
1210 | } | |
1211 | } else { | |
1212 | while (defined($line = <$fh>)) { | |
1213 | next if $count++ < $start; | |
1214 | next if $limit <= 0; | |
1215 | chomp $line; | |
1216 | push @$lines, { n => $count, t => $line}; | |
1217 | $limit--; | |
1218 | } | |
804b1041 DM |
1219 | } |
1220 | ||
1221 | close($fh); | |
1222 | ||
6de95a66 DM |
1223 | # HACK: ExtJS store.guaranteeRange() does not like empty array |
1224 | # so we add a line | |
1225 | if (!$count) { | |
1226 | $count++; | |
1227 | push @$lines, { n => $count, t => "no content"}; | |
1228 | } | |
1229 | ||
1230 | return ($count, $lines); | |
1231 | } | |
1232 | ||
1233 | sub dump_journal { | |
ccf60d3b | 1234 | my ($start, $limit, $since, $until, $service) = @_; |
6de95a66 DM |
1235 | |
1236 | my $lines = []; | |
1237 | my $count = 0; | |
813a5c0d | 1238 | |
6de95a66 DM |
1239 | $start = 0 if !$start; |
1240 | $limit = 50 if !$limit; | |
1241 | ||
1242 | my $parser = sub { | |
1243 | my $line = shift; | |
1244 | ||
1245 | return if $count++ < $start; | |
1246 | return if $limit <= 0; | |
1247 | push @$lines, { n => int($count), t => $line}; | |
1248 | $limit--; | |
1249 | }; | |
1250 | ||
1251 | my $cmd = ['journalctl', '-o', 'short', '--no-pager']; | |
19e95cd0 | 1252 | |
ccf60d3b | 1253 | push @$cmd, '--unit', $service if $service; |
19e95cd0 TL |
1254 | push @$cmd, '--since', $since if $since; |
1255 | push @$cmd, '--until', $until if $until; | |
6de95a66 DM |
1256 | run_command($cmd, outfunc => $parser); |
1257 | ||
804b1041 DM |
1258 | # HACK: ExtJS store.guaranteeRange() does not like empty array |
1259 | # so we add a line | |
1260 | if (!$count) { | |
1261 | $count++; | |
1262 | push @$lines, { n => $count, t => "no content"}; | |
1263 | } | |
1264 | ||
1265 | return ($count, $lines); | |
1266 | } | |
1267 | ||
7eb283fb DM |
1268 | sub dir_glob_regex { |
1269 | my ($dir, $regex) = @_; | |
1270 | ||
1271 | my $dh = IO::Dir->new ($dir); | |
1272 | return wantarray ? () : undef if !$dh; | |
813a5c0d DC |
1273 | |
1274 | while (defined(my $tmp = $dh->read)) { | |
7eb283fb DM |
1275 | if (my @res = $tmp =~ m/^($regex)$/) { |
1276 | $dh->close; | |
1277 | return wantarray ? @res : $tmp; | |
1278 | } | |
1279 | } | |
1280 | $dh->close; | |
1281 | ||
1282 | return wantarray ? () : undef; | |
1283 | } | |
1284 | ||
1285 | sub dir_glob_foreach { | |
1286 | my ($dir, $regex, $func) = @_; | |
1287 | ||
1288 | my $dh = IO::Dir->new ($dir); | |
1289 | if (defined $dh) { | |
1290 | while (defined(my $tmp = $dh->read)) { | |
1291 | if (my @res = $tmp =~ m/^($regex)$/) { | |
1292 | &$func (@res); | |
1293 | } | |
1294 | } | |
813a5c0d | 1295 | } |
7eb283fb DM |
1296 | } |
1297 | ||
a345b9d5 DM |
1298 | sub assert_if_modified { |
1299 | my ($digest1, $digest2) = @_; | |
1300 | ||
1301 | if ($digest1 && $digest2 && ($digest1 ne $digest2)) { | |
212fc0b7 | 1302 | die "detected modified configuration - file changed by other user? Try again.\n"; |
a345b9d5 DM |
1303 | } |
1304 | } | |
1305 | ||
2d3bca34 DM |
1306 | # Digest for short strings |
1307 | # like FNV32a, but we only return 31 bits (positive numbers) | |
1308 | sub fnv31a { | |
1309 | my ($string) = @_; | |
1310 | ||
1311 | my $hval = 0x811c9dc5; | |
1312 | ||
1313 | foreach my $c (unpack('C*', $string)) { | |
1314 | $hval ^= $c; | |
1315 | $hval += ( | |
1316 | (($hval << 1) ) + | |
1317 | (($hval << 4) ) + | |
1318 | (($hval << 7) ) + | |
1319 | (($hval << 8) ) + | |
1320 | (($hval << 24) ) ); | |
1321 | $hval = $hval & 0xffffffff; | |
1322 | } | |
1323 | return $hval & 0x7fffffff; | |
1324 | } | |
1325 | ||
1326 | sub fnv31a_hex { return sprintf("%X", fnv31a(@_)); } | |
1327 | ||
8df6b794 WB |
1328 | sub unpack_sockaddr_in46 { |
1329 | my ($sin) = @_; | |
1330 | my $family = Socket::sockaddr_family($sin); | |
1331 | my ($port, $host) = ($family == AF_INET6 ? Socket::unpack_sockaddr_in6($sin) | |
1332 | : Socket::unpack_sockaddr_in($sin)); | |
1333 | return ($family, $port, $host); | |
1334 | } | |
1335 | ||
a0b6ef52 WB |
1336 | sub getaddrinfo_all { |
1337 | my ($hostname, @opts) = @_; | |
a956854f | 1338 | my %hints = ( flags => AI_V4MAPPED | AI_ALL, |
a0b6ef52 | 1339 | @opts ); |
a956854f | 1340 | my ($err, @res) = Socket::getaddrinfo($hostname, '0', \%hints); |
a0b6ef52 WB |
1341 | die "failed to get address info for: $hostname: $err\n" if $err; |
1342 | return @res; | |
1343 | } | |
a956854f | 1344 | |
a0b6ef52 WB |
1345 | sub get_host_address_family { |
1346 | my ($hostname, $socktype) = @_; | |
1347 | my @res = getaddrinfo_all($hostname, socktype => $socktype); | |
1348 | return $res[0]->{family}; | |
a956854f WB |
1349 | } |
1350 | ||
d3c8f0c1 EK |
1351 | # get the fully qualified domain name of a host |
1352 | # same logic as hostname(1): The FQDN is the name getaddrinfo(3) returns, | |
1353 | # given a nodename as a parameter | |
1354 | sub get_fqdn { | |
1355 | my ($nodename) = @_; | |
1356 | ||
1357 | my $hints = { | |
1358 | flags => AI_CANONNAME, | |
1359 | socktype => SOCK_DGRAM | |
1360 | }; | |
1361 | ||
1362 | my ($err, @addrs) = Socket::getaddrinfo($nodename, undef, $hints); | |
1363 | ||
1364 | die "getaddrinfo: $err" if $err; | |
1365 | ||
1366 | return $addrs[0]->{canonname}; | |
1367 | } | |
1368 | ||
b2613777 WB |
1369 | # Parses any sane kind of host, or host+port pair: |
1370 | # The port is always optional and thus may be undef. | |
1371 | sub parse_host_and_port { | |
1372 | my ($address) = @_; | |
1373 | if ($address =~ /^($IPV4RE|[[:alnum:]\-.]+)(?::(\d+))?$/ || # ipv4 or host with optional ':port' | |
1374 | $address =~ /^\[($IPV6RE|$IPV4RE|[[:alnum:]\-.]+)\](?::(\d+))?$/ || # anything in brackets with optional ':port' | |
1375 | $address =~ /^($IPV6RE)(?:\.(\d+))?$/) # ipv6 with optional port separated by dot | |
1376 | { | |
1377 | return ($1, $2, 1); # end with 1 to support simple if(parse...) tests | |
1378 | } | |
1379 | return; # nothing | |
1380 | } | |
1381 | ||
817c6be0 | 1382 | sub unshare($) { |
952fd95e | 1383 | my ($flags) = @_; |
c8e94d4b | 1384 | return 0 == syscall(PVE::Syscall::unshare, $flags); |
952fd95e WB |
1385 | } |
1386 | ||
891b224a WB |
1387 | sub setns($$) { |
1388 | my ($fileno, $nstype) = @_; | |
c8e94d4b | 1389 | return 0 == syscall(PVE::Syscall::setns, $fileno, $nstype); |
891b224a WB |
1390 | } |
1391 | ||
44acb12c WB |
1392 | sub syncfs($) { |
1393 | my ($fileno) = @_; | |
c8e94d4b | 1394 | return 0 == syscall(PVE::Syscall::syncfs, $fileno); |
44acb12c WB |
1395 | } |
1396 | ||
1397 | sub sync_mountpoint { | |
1398 | my ($path) = @_; | |
1399 | sysopen my $fd, $path, O_PATH or die "failed to open $path: $!\n"; | |
1400 | my $result = syncfs(fileno($fd)); | |
1401 | close($fd); | |
1402 | return $result; | |
1403 | } | |
1404 | ||
b61a47db TL |
1405 | # support sending multi-part mail messages with a text and or a HTML part |
1406 | # mailto may be a single email string or an array of receivers | |
1407 | sub sendmail { | |
1408 | my ($mailto, $subject, $text, $html, $mailfrom, $author) = @_; | |
c9c6d910 | 1409 | my $mail_re = qr/[^-a-zA-Z0-9+._@]/; |
b61a47db | 1410 | |
5a873e6d | 1411 | $mailto = [ $mailto ] if !ref($mailto); |
b61a47db | 1412 | |
c9c6d910 FG |
1413 | foreach (@$mailto) { |
1414 | die "illegal character in mailto address\n" | |
1415 | if ($_ =~ $mail_re); | |
b61a47db | 1416 | } |
c9c6d910 | 1417 | |
b61a47db TL |
1418 | my $rcvrtxt = join (', ', @$mailto); |
1419 | ||
1420 | $mailfrom = $mailfrom || "root"; | |
c9c6d910 FG |
1421 | die "illegal character in mailfrom address\n" |
1422 | if $mailfrom =~ $mail_re; | |
1423 | ||
5a873e6d | 1424 | $author = $author || 'Proxmox VE'; |
b61a47db | 1425 | |
c9c6d910 | 1426 | open (MAIL, "|-", "sendmail", "-B", "8BITMIME", "-f", $mailfrom, @$mailto) || |
b61a47db TL |
1427 | die "unable to open 'sendmail' - $!"; |
1428 | ||
1429 | # multipart spec see https://www.ietf.org/rfc/rfc1521.txt | |
1430 | my $boundary = "----_=_NextPart_001_".int(time).$$; | |
1431 | ||
1432 | print MAIL "Content-Type: multipart/alternative;\n"; | |
1433 | print MAIL "\tboundary=\"$boundary\"\n"; | |
1434 | print MAIL "MIME-Version: 1.0\n"; | |
1435 | ||
1436 | print MAIL "FROM: $author <$mailfrom>\n"; | |
1437 | print MAIL "TO: $rcvrtxt\n"; | |
1438 | print MAIL "SUBJECT: $subject\n"; | |
1439 | print MAIL "\n"; | |
1440 | print MAIL "This is a multi-part message in MIME format.\n\n"; | |
1441 | print MAIL "--$boundary\n"; | |
1442 | ||
5a873e6d | 1443 | if (defined($text)) { |
b61a47db TL |
1444 | print MAIL "Content-Type: text/plain;\n"; |
1445 | print MAIL "\tcharset=\"UTF8\"\n"; | |
1446 | print MAIL "Content-Transfer-Encoding: 8bit\n"; | |
1447 | print MAIL "\n"; | |
1448 | ||
1449 | # avoid 'remove extra line breaks' issue (MS Outlook) | |
1450 | my $fill = ' '; | |
1451 | $text =~ s/^/$fill/gm; | |
1452 | ||
1453 | print MAIL $text; | |
1454 | ||
1455 | print MAIL "\n--$boundary\n"; | |
1456 | } | |
1457 | ||
5a873e6d | 1458 | if (defined($html)) { |
b61a47db TL |
1459 | print MAIL "Content-Type: text/html;\n"; |
1460 | print MAIL "\tcharset=\"UTF8\"\n"; | |
1461 | print MAIL "Content-Transfer-Encoding: 8bit\n"; | |
1462 | print MAIL "\n"; | |
1463 | ||
1464 | print MAIL $html; | |
1465 | ||
1466 | print MAIL "\n--$boundary--\n"; | |
1467 | } | |
1468 | ||
1469 | close(MAIL); | |
b61a47db TL |
1470 | } |
1471 | ||
26598a51 WB |
1472 | sub tempfile { |
1473 | my ($perm, %opts) = @_; | |
1474 | ||
1475 | # default permissions are stricter than with file_set_contents | |
1476 | $perm = 0600 if !defined($perm); | |
1477 | ||
f0cfc20e | 1478 | my $dir = $opts{dir} // '/run'; |
26598a51 WB |
1479 | my $mode = $opts{mode} // O_RDWR; |
1480 | $mode |= O_EXCL if !$opts{allow_links}; | |
1481 | ||
7e1ee743 WB |
1482 | my $fh = IO::File->new($dir, $mode | O_TMPFILE, $perm); |
1483 | if (!$fh && $! == EOPNOTSUPP) { | |
77b2b96f | 1484 | $dir = '/tmp' if !defined($opts{dir}); |
7e1ee743 WB |
1485 | $dir .= "/.tmpfile.$$"; |
1486 | $fh = IO::File->new($dir, $mode | O_CREAT | O_EXCL, $perm); | |
1487 | unlink($dir) if $fh; | |
1488 | } | |
1489 | die "failed to create tempfile: $!\n" if !$fh; | |
26598a51 WB |
1490 | return $fh; |
1491 | } | |
1492 | ||
1493 | sub tempfile_contents { | |
1494 | my ($data, $perm, %opts) = @_; | |
1495 | ||
1496 | my $fh = tempfile($perm, %opts); | |
1497 | eval { | |
1498 | die "unable to write to tempfile: $!\n" if !print {$fh} $data; | |
1499 | die "unable to flush to tempfile: $!\n" if !defined($fh->flush()); | |
1500 | }; | |
1501 | if (my $err = $@) { | |
1502 | close $fh; | |
1503 | die $err; | |
1504 | } | |
1505 | ||
1506 | return ("/proc/$$/fd/".$fh->fileno, $fh); | |
1507 | } | |
1508 | ||
48df47a4 FG |
1509 | sub validate_ssh_public_keys { |
1510 | my ($raw) = @_; | |
1511 | my @lines = split(/\n/, $raw); | |
1512 | ||
1513 | foreach my $line (@lines) { | |
1514 | next if $line =~ m/^\s*$/; | |
1515 | eval { | |
1516 | my ($filename, $handle) = tempfile_contents($line); | |
1517 | run_command(["ssh-keygen", "-l", "-f", $filename], | |
1518 | outfunc => sub {}, errfunc => sub {}); | |
1519 | }; | |
1520 | die "SSH public key validation error\n" if $@; | |
1521 | } | |
1522 | } | |
1523 | ||
21c56a96 WB |
1524 | sub openat($$$;$) { |
1525 | my ($dirfd, $pathname, $flags, $mode) = @_; | |
c8e94d4b | 1526 | my $fd = syscall(PVE::Syscall::openat, $dirfd, $pathname, $flags, $mode//0); |
21c56a96 WB |
1527 | return undef if $fd < 0; |
1528 | # sysopen() doesn't deal with numeric file descriptors apparently | |
1529 | # so we need to convert to a mode string for IO::Handle->new_from_fd | |
1530 | my $flagstr = ($flags & O_RDWR) ? 'rw' : ($flags & O_WRONLY) ? 'w' : 'r'; | |
1531 | my $handle = IO::Handle->new_from_fd($fd, $flagstr); | |
1532 | return $handle if $handle; | |
1533 | my $err = $!; # save error before closing the raw fd | |
c8e94d4b | 1534 | syscall(PVE::Syscall::close, $fd); # close |
21c56a96 WB |
1535 | $! = $err; |
1536 | return undef; | |
1537 | } | |
1538 | ||
1539 | sub mkdirat($$$) { | |
1540 | my ($dirfd, $name, $mode) = @_; | |
c8e94d4b | 1541 | return syscall(PVE::Syscall::mkdirat, $dirfd, $name, $mode) == 0; |
21c56a96 WB |
1542 | } |
1543 | ||
9867ff7a DM |
1544 | my $salt_starter = time(); |
1545 | ||
1546 | sub encrypt_pw { | |
1547 | my ($pw) = @_; | |
1548 | ||
1549 | $salt_starter++; | |
1550 | my $salt = substr(Digest::SHA::sha1_base64(time() + $salt_starter + $$), 0, 8); | |
1551 | ||
1552 | # crypt does not want '+' in salt (see 'man crypt') | |
1553 | $salt =~ s/\+/X/g; | |
1554 | ||
1555 | return crypt(encode("utf8", $pw), "\$5\$$salt\$"); | |
1556 | } | |
1557 | ||
8e677e74 | 1558 | # intended usage: convert_size($val, "kb" => "gb") |
95386daf DC |
1559 | # we round up to the next integer by default |
1560 | # E.g. `convert_size(1023, "b" => "kb")` returns 1 | |
8e677e74 | 1561 | # use $no_round_up to switch this off, above example would then return 0 |
95386daf DC |
1562 | # this is also true for converting down e.g. 0.0005 gb to mb returns 1 |
1563 | # (0 if $no_round_up is true) | |
1564 | # allowed formats for value: | |
1565 | # 1234 | |
1566 | # 1234. | |
1567 | # 1234.1234 | |
1568 | # .1234 | |
8e677e74 TL |
1569 | sub convert_size { |
1570 | my ($value, $from, $to, $no_round_up) = @_; | |
1571 | ||
1572 | my $units = { | |
1573 | b => 0, | |
1574 | kb => 1, | |
1575 | mb => 2, | |
1576 | gb => 3, | |
1577 | tb => 4, | |
1578 | pb => 5, | |
1579 | }; | |
1580 | ||
95386daf DC |
1581 | die "no value given" |
1582 | if !defined($value) || $value eq ""; | |
1583 | ||
1584 | $from = lc($from // ''); $to = lc($to // ''); | |
8e677e74 | 1585 | die "unknown 'from' and/or 'to' units ($from => $to)" |
95386daf | 1586 | if !defined($units->{$from}) || !defined($units->{$to}); |
8e677e74 | 1587 | |
95386daf DC |
1588 | die "value '$value' is not a valid, positive number" |
1589 | if $value !~ m/^(?:[0-9]+\.?[0-9]*|[0-9]*\.[0-9]+)$/; | |
8e677e74 | 1590 | |
95386daf DC |
1591 | my $shift_amount = ($units->{$from} - $units->{$to}) * 10; |
1592 | ||
1593 | $value *= 2**$shift_amount; | |
1594 | $value++ if !$no_round_up && ($value - int($value)) > 0.0; | |
8e677e74 | 1595 | |
95386daf | 1596 | return int($value); |
8e677e74 TL |
1597 | } |
1598 | ||
e143e9d8 | 1599 | 1; |