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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 |
ce007e99 | 50 | get_host_arch |
c0647765 WB |
51 | O_PATH |
52 | O_TMPFILE | |
1b0bc6c0 WB |
53 | AT_EMPTY_PATH |
54 | AT_FDCWD | |
55 | CLONE_NEWNS | |
56 | CLONE_NEWUTS | |
57 | CLONE_NEWIPC | |
58 | CLONE_NEWUSER | |
59 | CLONE_NEWPID | |
60 | CLONE_NEWNET | |
e143e9d8 DM |
61 | ); |
62 | ||
63 | my $pvelogdir = "/var/log/pve"; | |
64 | my $pvetaskdir = "$pvelogdir/tasks"; | |
65 | ||
66 | mkdir $pvelogdir; | |
67 | mkdir $pvetaskdir; | |
68 | ||
cd9bd252 | 69 | my $IPV4OCTET = "(?:25[0-5]|(?:2[0-4]|1[0-9]|[1-9])?[0-9])"; |
602ec0cd DM |
70 | our $IPV4RE = "(?:(?:$IPV4OCTET\\.){3}$IPV4OCTET)"; |
71 | my $IPV6H16 = "(?:[0-9a-fA-F]{1,4})"; | |
72 | my $IPV6LS32 = "(?:(?:$IPV4RE|$IPV6H16:$IPV6H16))"; | |
73 | ||
74 | our $IPV6RE = "(?:" . | |
75 | "(?:(?:" . "(?:$IPV6H16:){6})$IPV6LS32)|" . | |
76 | "(?:(?:" . "::(?:$IPV6H16:){5})$IPV6LS32)|" . | |
77 | "(?:(?:(?:" . "$IPV6H16)?::(?:$IPV6H16:){4})$IPV6LS32)|" . | |
78 | "(?:(?:(?:(?:$IPV6H16:){0,1}$IPV6H16)?::(?:$IPV6H16:){3})$IPV6LS32)|" . | |
79 | "(?:(?:(?:(?:$IPV6H16:){0,2}$IPV6H16)?::(?:$IPV6H16:){2})$IPV6LS32)|" . | |
80 | "(?:(?:(?:(?:$IPV6H16:){0,3}$IPV6H16)?::(?:$IPV6H16:){1})$IPV6LS32)|" . | |
81 | "(?:(?:(?:(?:$IPV6H16:){0,4}$IPV6H16)?::" . ")$IPV6LS32)|" . | |
82 | "(?:(?:(?:(?:$IPV6H16:){0,5}$IPV6H16)?::" . ")$IPV6H16)|" . | |
83 | "(?:(?:(?:(?:$IPV6H16:){0,6}$IPV6H16)?::" . ")))"; | |
84 | ||
176b1186 WB |
85 | our $IPRE = "(?:$IPV4RE|$IPV6RE)"; |
86 | ||
be8f0477 | 87 | use constant {CLONE_NEWNS => 0x00020000, |
952fd95e WB |
88 | CLONE_NEWUTS => 0x04000000, |
89 | CLONE_NEWIPC => 0x08000000, | |
90 | CLONE_NEWUSER => 0x10000000, | |
91 | CLONE_NEWPID => 0x20000000, | |
be8f0477 | 92 | CLONE_NEWNET => 0x40000000}; |
952fd95e | 93 | |
26598a51 WB |
94 | use constant {O_PATH => 0x00200000, |
95 | O_TMPFILE => 0x00410000}; # This includes O_DIRECTORY | |
44acb12c | 96 | |
1b0bc6c0 WB |
97 | use constant {AT_EMPTY_PATH => 0x1000, |
98 | AT_FDCWD => -100}; | |
6cf6b404 | 99 | |
0f0990f1 DM |
100 | sub run_with_timeout { |
101 | my ($timeout, $code, @param) = @_; | |
e143e9d8 | 102 | |
0f0990f1 | 103 | die "got timeout\n" if $timeout <= 0; |
e143e9d8 | 104 | |
c38cea65 | 105 | my $prev_alarm = alarm 0; # suspend outer alarm early |
0f0990f1 DM |
106 | |
107 | my $sigcount = 0; | |
e143e9d8 DM |
108 | |
109 | my $res; | |
110 | ||
e143e9d8 | 111 | eval { |
0f0990f1 DM |
112 | local $SIG{ALRM} = sub { $sigcount++; die "got timeout\n"; }; |
113 | local $SIG{PIPE} = sub { $sigcount++; die "broken pipe\n" }; | |
114 | local $SIG{__DIE__}; # see SA bug 4631 | |
e143e9d8 | 115 | |
c38cea65 | 116 | alarm($timeout); |
e143e9d8 | 117 | |
c38cea65 | 118 | eval { $res = &$code(@param); }; |
0f0990f1 DM |
119 | |
120 | alarm(0); # avoid race conditions | |
c38cea65 WB |
121 | |
122 | die $@ if $@; | |
0f0990f1 DM |
123 | }; |
124 | ||
125 | my $err = $@; | |
126 | ||
c38cea65 | 127 | alarm $prev_alarm; |
0f0990f1 | 128 | |
c38cea65 | 129 | # this shouldn't happen anymore? |
0f0990f1 DM |
130 | die "unknown error" if $sigcount && !$err; # seems to happen sometimes |
131 | ||
132 | die $err if $err; | |
133 | ||
134 | return $res; | |
135 | } | |
e143e9d8 | 136 | |
0f0990f1 | 137 | # flock: we use one file handle per process, so lock file |
d9f86d0d WB |
138 | # can be nested multiple times and succeeds for the same process. |
139 | # | |
140 | # Since this is the only way we lock now and we don't have the old | |
141 | # 'lock(); code(); unlock();' pattern anymore we do not actually need to | |
142 | # count how deep we're nesting. Therefore this hash now stores a weak reference | |
143 | # to a boolean telling us whether we already have a lock. | |
0f0990f1 DM |
144 | |
145 | my $lock_handles = {}; | |
146 | ||
493004a2 DM |
147 | sub lock_file_full { |
148 | my ($filename, $timeout, $shared, $code, @param) = @_; | |
0f0990f1 DM |
149 | |
150 | $timeout = 10 if !$timeout; | |
151 | ||
493004a2 DM |
152 | my $mode = $shared ? LOCK_SH : LOCK_EX; |
153 | ||
d9f86d0d | 154 | my $lockhash = ($lock_handles->{$$} //= {}); |
e143e9d8 | 155 | |
d9f86d0d WB |
156 | # Returns a locked file handle. |
157 | my $get_locked_file = sub { | |
158 | my $fh = IO::File->new(">>$filename") | |
159 | or die "can't open file - $!\n"; | |
160 | ||
161 | if (!flock($fh, $mode|LOCK_NB)) { | |
91bae4c0 | 162 | print STDERR "trying to acquire lock...\n"; |
b5d12b08 DM |
163 | my $success; |
164 | while(1) { | |
d9f86d0d | 165 | $success = flock($fh, $mode); |
b5d12b08 DM |
166 | # try again on EINTR (see bug #273) |
167 | if ($success || ($! != EINTR)) { | |
168 | last; | |
169 | } | |
170 | } | |
d9f86d0d WB |
171 | if (!$success) { |
172 | print STDERR " failed\n"; | |
173 | die "can't acquire lock '$filename' - $!\n"; | |
174 | } | |
175 | print STDERR " OK\n"; | |
176 | } | |
177 | ||
178 | return $fh; | |
e143e9d8 DM |
179 | }; |
180 | ||
0f0990f1 | 181 | my $res; |
d9f86d0d WB |
182 | my $checkptr = $lockhash->{$filename}; |
183 | my $check = 0; # This must not go out of scope before running the code. | |
184 | my $local_fh; # This must stay local | |
185 | if (!$checkptr || !$$checkptr) { | |
186 | # We cannot create a weak reference in a single atomic step, so we first | |
187 | # create a false-value, then create a reference to it, then weaken it, | |
188 | # and after successfully locking the file we change the boolean value. | |
189 | # | |
190 | # The reason for this is that if an outer SIGALRM throws an exception | |
191 | # between creating the reference and weakening it, a subsequent call to | |
192 | # lock_file_full() will see a leftover full reference to a valid | |
193 | # variable. This variable must be 0 in order for said call to attempt to | |
194 | # lock the file anew. | |
195 | # | |
196 | # An externally triggered exception elsewhere in the code will cause the | |
197 | # weak reference to become 'undef', and since the file handle is only | |
198 | # stored in the local scope in $local_fh, the file will be closed by | |
199 | # perl's cleanup routines as well. | |
200 | # | |
201 | # This still assumes that an IO::File handle can properly deal with such | |
202 | # exceptions thrown during its own destruction, but that's up to perls | |
203 | # guts now. | |
204 | $lockhash->{$filename} = \$check; | |
205 | weaken $lockhash->{$filename}; | |
206 | $local_fh = eval { run_with_timeout($timeout, $get_locked_file) }; | |
207 | if ($@) { | |
208 | $@ = "can't lock file '$filename' - $@"; | |
209 | return undef; | |
f127adab | 210 | } |
d9f86d0d | 211 | $check = 1; |
e143e9d8 | 212 | } |
d9f86d0d WB |
213 | $res = eval { &$code(@param); }; |
214 | return undef if $@; | |
e143e9d8 DM |
215 | return $res; |
216 | } | |
217 | ||
493004a2 DM |
218 | |
219 | sub lock_file { | |
220 | my ($filename, $timeout, $code, @param) = @_; | |
221 | ||
222 | return lock_file_full($filename, $timeout, 0, $code, @param); | |
223 | } | |
224 | ||
e143e9d8 DM |
225 | sub file_set_contents { |
226 | my ($filename, $data, $perm) = @_; | |
227 | ||
228 | $perm = 0644 if !defined($perm); | |
229 | ||
230 | my $tmpname = "$filename.tmp.$$"; | |
231 | ||
232 | eval { | |
ce338f4f WB |
233 | my ($fh, $tries) = (undef, 0); |
234 | while (!$fh && $tries++ < 3) { | |
235 | $fh = IO::File->new($tmpname, O_WRONLY|O_CREAT|O_EXCL, $perm); | |
236 | if (!$fh && $! == EEXIST) { | |
237 | unlink($tmpname) or die "unable to delete old temp file: $!\n"; | |
238 | } | |
239 | } | |
e143e9d8 DM |
240 | die "unable to open file '$tmpname' - $!\n" if !$fh; |
241 | die "unable to write '$tmpname' - $!\n" unless print $fh $data; | |
242 | die "closing file '$tmpname' failed - $!\n" unless close $fh; | |
243 | }; | |
244 | my $err = $@; | |
245 | ||
246 | if ($err) { | |
247 | unlink $tmpname; | |
248 | die $err; | |
249 | } | |
250 | ||
251 | if (!rename($tmpname, $filename)) { | |
252 | my $msg = "close (rename) atomic file '$filename' failed: $!\n"; | |
253 | unlink $tmpname; | |
813a5c0d | 254 | die $msg; |
e143e9d8 DM |
255 | } |
256 | } | |
257 | ||
258 | sub file_get_contents { | |
259 | my ($filename, $max) = @_; | |
260 | ||
261 | my $fh = IO::File->new($filename, "r") || | |
262 | die "can't open '$filename' - $!\n"; | |
263 | ||
034a8181 | 264 | my $content = safe_read_from($fh, $max, 0, $filename); |
e143e9d8 DM |
265 | |
266 | close $fh; | |
267 | ||
268 | return $content; | |
269 | } | |
270 | ||
23e0e0d7 WL |
271 | sub file_copy { |
272 | my ($filename, $dst, $max, $perm) = @_; | |
273 | ||
274 | file_set_contents ($dst, file_get_contents($filename, $max), $perm); | |
275 | } | |
276 | ||
e143e9d8 DM |
277 | sub file_read_firstline { |
278 | my ($filename) = @_; | |
279 | ||
280 | my $fh = IO::File->new ($filename, "r"); | |
281 | return undef if !$fh; | |
282 | my $res = <$fh>; | |
88955a2e | 283 | chomp $res if $res; |
e143e9d8 DM |
284 | $fh->close; |
285 | return $res; | |
286 | } | |
287 | ||
288 | sub safe_read_from { | |
034a8181 | 289 | my ($fh, $max, $oneline, $filename) = @_; |
e143e9d8 | 290 | |
8fb28ab9 FG |
291 | # pmxcfs file size limit |
292 | $max = 512*1024 if !$max; | |
e143e9d8 | 293 | |
034a8181 DM |
294 | my $subject = defined($filename) ? "file '$filename'" : 'input'; |
295 | ||
e143e9d8 DM |
296 | my $br = 0; |
297 | my $input = ''; | |
298 | my $count; | |
299 | while ($count = sysread($fh, $input, 8192, $br)) { | |
300 | $br += $count; | |
034a8181 | 301 | die "$subject too long - aborting\n" if $br > $max; |
e143e9d8 DM |
302 | if ($oneline && $input =~ m/^(.*)\n/) { |
303 | $input = $1; | |
304 | last; | |
305 | } | |
813a5c0d | 306 | } |
034a8181 | 307 | die "unable to read $subject - $!\n" if !defined($count); |
e143e9d8 DM |
308 | |
309 | return $input; | |
310 | } | |
311 | ||
bd9c3a36 WB |
312 | # The $cmd parameter can be: |
313 | # -) a string | |
314 | # This is generally executed by passing it to the shell with the -c option. | |
315 | # However, it can be executed in one of two ways, depending on whether | |
316 | # there's a pipe involved: | |
317 | # *) with pipe: passed explicitly to bash -c, prefixed with: | |
318 | # set -o pipefail && | |
319 | # *) without a pipe: passed to perl's open3 which uses 'sh -c' | |
320 | # (Note that this may result in two different syntax requirements!) | |
321 | # FIXME? | |
322 | # -) an array of arguments (strings) | |
323 | # Will be executed without interference from a shell. (Parameters are passed | |
324 | # as is, no escape sequences of strings will be touched.) | |
fcdc0cfc WB |
325 | # -) an array of arrays |
326 | # Each array represents a command, and each command's output is piped into | |
327 | # the following command's standard input. | |
328 | # For this a shell command string is created with pipe symbols between each | |
329 | # command. | |
330 | # Each command is a list of strings meant to end up in the final command | |
331 | # unchanged. In order to achieve this, every argument is shell-quoted. | |
332 | # Quoting can be disabled for a particular argument by turning it into a | |
333 | # reference, this allows inserting arbitrary shell options. | |
334 | # For instance: the $cmd [ [ 'echo', 'hello', \'>/dev/null' ] ] will not | |
335 | # produce any output, while the $cmd [ [ 'echo', 'hello', '>/dev/null' ] ] | |
336 | # will literally print: hello >/dev/null | |
e143e9d8 DM |
337 | sub run_command { |
338 | my ($cmd, %param) = @_; | |
339 | ||
340 | my $old_umask; | |
ded47a61 | 341 | my $cmdstr; |
e143e9d8 | 342 | |
fcdc0cfc WB |
343 | if (my $ref = ref($cmd)) { |
344 | if (ref($cmd->[0])) { | |
345 | $cmdstr = 'set -o pipefail && '; | |
346 | my $pipe = ''; | |
347 | foreach my $command (@$cmd) { | |
348 | # concatenate quoted parameters | |
349 | # strings which are passed by reference are NOT shell quoted | |
350 | $cmdstr .= $pipe . join(' ', map { ref($_) ? $$_ : shellquote($_) } @$command); | |
351 | $pipe = ' | '; | |
352 | } | |
1a0c0103 | 353 | $cmd = [ '/bin/bash', '-c', "$cmdstr" ]; |
fcdc0cfc WB |
354 | } else { |
355 | $cmdstr = cmd2string($cmd); | |
356 | } | |
357 | } else { | |
ded47a61 | 358 | $cmdstr = $cmd; |
22d4efe6 | 359 | if ($cmd =~ m/\|/) { |
e0cabd2c DM |
360 | # see 'man bash' for option pipefail |
361 | $cmd = [ '/bin/bash', '-c', "set -o pipefail && $cmd" ]; | |
362 | } else { | |
363 | $cmd = [ $cmd ]; | |
364 | } | |
ded47a61 | 365 | } |
e143e9d8 DM |
366 | |
367 | my $errmsg; | |
368 | my $laststderr; | |
369 | my $timeout; | |
370 | my $oldtimeout; | |
371 | my $pid; | |
38d9aa12 | 372 | my $exitcode = -1; |
e143e9d8 | 373 | |
4630cb95 DM |
374 | my $outfunc; |
375 | my $errfunc; | |
376 | my $logfunc; | |
377 | my $input; | |
378 | my $output; | |
a417477c | 379 | my $afterfork; |
7e826928 | 380 | my $noerr; |
0f3f314e | 381 | my $keeplocale; |
ed61b9d6 | 382 | my $quiet; |
4630cb95 | 383 | |
e143e9d8 | 384 | eval { |
e143e9d8 DM |
385 | |
386 | foreach my $p (keys %param) { | |
387 | if ($p eq 'timeout') { | |
388 | $timeout = $param{$p}; | |
389 | } elsif ($p eq 'umask') { | |
eb9e24df | 390 | $old_umask = umask($param{$p}); |
e143e9d8 DM |
391 | } elsif ($p eq 'errmsg') { |
392 | $errmsg = $param{$p}; | |
e143e9d8 DM |
393 | } elsif ($p eq 'input') { |
394 | $input = $param{$p}; | |
1c50a24a DM |
395 | } elsif ($p eq 'output') { |
396 | $output = $param{$p}; | |
e143e9d8 DM |
397 | } elsif ($p eq 'outfunc') { |
398 | $outfunc = $param{$p}; | |
399 | } elsif ($p eq 'errfunc') { | |
400 | $errfunc = $param{$p}; | |
776fbfa8 DM |
401 | } elsif ($p eq 'logfunc') { |
402 | $logfunc = $param{$p}; | |
a417477c DM |
403 | } elsif ($p eq 'afterfork') { |
404 | $afterfork = $param{$p}; | |
7e826928 TL |
405 | } elsif ($p eq 'noerr') { |
406 | $noerr = $param{$p}; | |
0f3f314e DC |
407 | } elsif ($p eq 'keeplocale') { |
408 | $keeplocale = $param{$p}; | |
ed61b9d6 TL |
409 | } elsif ($p eq 'quiet') { |
410 | $quiet = $param{$p}; | |
e143e9d8 DM |
411 | } else { |
412 | die "got unknown parameter '$p' for run_command\n"; | |
413 | } | |
414 | } | |
415 | ||
4630cb95 DM |
416 | if ($errmsg) { |
417 | my $origerrfunc = $errfunc; | |
418 | $errfunc = sub { | |
419 | if ($laststderr) { | |
420 | if ($origerrfunc) { | |
421 | &$origerrfunc("$laststderr\n"); | |
422 | } else { | |
423 | print STDERR "$laststderr\n" if $laststderr; | |
424 | } | |
425 | } | |
813a5c0d | 426 | $laststderr = shift; |
4630cb95 DM |
427 | }; |
428 | } | |
429 | ||
1c50a24a DM |
430 | my $reader = $output && $output =~ m/^>&/ ? $output : IO::File->new(); |
431 | my $writer = $input && $input =~ m/^<&/ ? $input : IO::File->new(); | |
432 | my $error = IO::File->new(); | |
433 | ||
e143e9d8 DM |
434 | my $orig_pid = $$; |
435 | ||
436 | eval { | |
0f3f314e | 437 | local $ENV{LC_ALL} = 'C' if !$keeplocale; |
e143e9d8 DM |
438 | |
439 | # suppress LVM warnings like: "File descriptor 3 left open"; | |
440 | local $ENV{LVM_SUPPRESS_FD_WARNINGS} = "1"; | |
441 | ||
442 | $pid = open3($writer, $reader, $error, @$cmd) || die $!; | |
f38995ab DM |
443 | |
444 | # if we pipe fron STDIN, open3 closes STDIN, so we we | |
445 | # a perl warning "Filehandle STDIN reopened as GENXYZ .. " | |
446 | # as soon as we open a new file. | |
447 | # to avoid that we open /dev/null | |
448 | if (!ref($writer) && !defined(fileno(STDIN))) { | |
449 | POSIX::close(0); | |
450 | open(STDIN, "</dev/null"); | |
451 | } | |
e143e9d8 DM |
452 | }; |
453 | ||
454 | my $err = $@; | |
455 | ||
456 | # catch exec errors | |
457 | if ($orig_pid != $$) { | |
458 | warn "ERROR: $err"; | |
813a5c0d DC |
459 | POSIX::_exit (1); |
460 | kill ('KILL', $$); | |
e143e9d8 DM |
461 | } |
462 | ||
463 | die $err if $err; | |
464 | ||
465 | local $SIG{ALRM} = sub { die "got timeout\n"; } if $timeout; | |
466 | $oldtimeout = alarm($timeout) if $timeout; | |
467 | ||
a417477c DM |
468 | &$afterfork() if $afterfork; |
469 | ||
f38995ab DM |
470 | if (ref($writer)) { |
471 | print $writer $input if defined $input; | |
472 | close $writer; | |
473 | } | |
e143e9d8 DM |
474 | |
475 | my $select = new IO::Select; | |
f38995ab | 476 | $select->add($reader) if ref($reader); |
e143e9d8 DM |
477 | $select->add($error); |
478 | ||
479 | my $outlog = ''; | |
480 | my $errlog = ''; | |
481 | ||
482 | my $starttime = time(); | |
483 | ||
484 | while ($select->count) { | |
485 | my @handles = $select->can_read(1); | |
486 | ||
487 | foreach my $h (@handles) { | |
488 | my $buf = ''; | |
489 | my $count = sysread ($h, $buf, 4096); | |
490 | if (!defined ($count)) { | |
491 | my $err = $!; | |
492 | kill (9, $pid); | |
493 | waitpid ($pid, 0); | |
494 | die $err; | |
495 | } | |
496 | $select->remove ($h) if !$count; | |
497 | if ($h eq $reader) { | |
776fbfa8 | 498 | if ($outfunc || $logfunc) { |
e143e9d8 DM |
499 | eval { |
500 | $outlog .= $buf; | |
501 | while ($outlog =~ s/^([^\010\r\n]*)(\r|\n|(\010)+|\r\n)//s) { | |
502 | my $line = $1; | |
776fbfa8 DM |
503 | &$outfunc($line) if $outfunc; |
504 | &$logfunc($line) if $logfunc; | |
e143e9d8 DM |
505 | } |
506 | }; | |
507 | my $err = $@; | |
508 | if ($err) { | |
509 | kill (9, $pid); | |
510 | waitpid ($pid, 0); | |
511 | die $err; | |
512 | } | |
ed61b9d6 | 513 | } elsif (!$quiet) { |
e143e9d8 DM |
514 | print $buf; |
515 | *STDOUT->flush(); | |
516 | } | |
517 | } elsif ($h eq $error) { | |
776fbfa8 | 518 | if ($errfunc || $logfunc) { |
e143e9d8 DM |
519 | eval { |
520 | $errlog .= $buf; | |
521 | while ($errlog =~ s/^([^\010\r\n]*)(\r|\n|(\010)+|\r\n)//s) { | |
522 | my $line = $1; | |
776fbfa8 DM |
523 | &$errfunc($line) if $errfunc; |
524 | &$logfunc($line) if $logfunc; | |
e143e9d8 DM |
525 | } |
526 | }; | |
527 | my $err = $@; | |
528 | if ($err) { | |
529 | kill (9, $pid); | |
530 | waitpid ($pid, 0); | |
531 | die $err; | |
532 | } | |
ed61b9d6 | 533 | } elsif (!$quiet) { |
e143e9d8 DM |
534 | print STDERR $buf; |
535 | *STDERR->flush(); | |
536 | } | |
537 | } | |
538 | } | |
539 | } | |
540 | ||
541 | &$outfunc($outlog) if $outfunc && $outlog; | |
776fbfa8 DM |
542 | &$logfunc($outlog) if $logfunc && $outlog; |
543 | ||
e143e9d8 | 544 | &$errfunc($errlog) if $errfunc && $errlog; |
776fbfa8 | 545 | &$logfunc($errlog) if $logfunc && $errlog; |
e143e9d8 DM |
546 | |
547 | waitpid ($pid, 0); | |
813a5c0d | 548 | |
e143e9d8 DM |
549 | if ($? == -1) { |
550 | die "failed to execute\n"; | |
551 | } elsif (my $sig = ($? & 127)) { | |
552 | die "got signal $sig\n"; | |
7e826928 TL |
553 | } elsif ($exitcode = ($? >> 8)) { |
554 | if (!($exitcode == 24 && ($cmdstr =~ m|^(\S+/)?rsync\s|))) { | |
1c50a24a DM |
555 | if ($errmsg && $laststderr) { |
556 | my $lerr = $laststderr; | |
557 | $laststderr = undef; | |
558 | die "$lerr\n"; | |
559 | } | |
7e826928 | 560 | die "exit code $exitcode\n"; |
e143e9d8 | 561 | } |
e143e9d8 DM |
562 | } |
563 | ||
564 | alarm(0); | |
565 | }; | |
566 | ||
567 | my $err = $@; | |
568 | ||
569 | alarm(0); | |
570 | ||
4630cb95 DM |
571 | if ($errmsg && $laststderr) { |
572 | &$errfunc(undef); # flush laststderr | |
573 | } | |
e143e9d8 DM |
574 | |
575 | umask ($old_umask) if defined($old_umask); | |
576 | ||
577 | alarm($oldtimeout) if $oldtimeout; | |
578 | ||
579 | if ($err) { | |
580 | if ($pid && ($err eq "got timeout\n")) { | |
581 | kill (9, $pid); | |
582 | waitpid ($pid, 0); | |
583 | die "command '$cmdstr' failed: $err"; | |
584 | } | |
585 | ||
586 | if ($errmsg) { | |
adbc988d | 587 | $err =~ s/^usermod:\s*// if $cmdstr =~ m|^(\S+/)?usermod\s|; |
e143e9d8 | 588 | die "$errmsg: $err"; |
7e826928 | 589 | } elsif(!$noerr) { |
e143e9d8 DM |
590 | die "command '$cmdstr' failed: $err"; |
591 | } | |
592 | } | |
1c50a24a | 593 | |
7e826928 | 594 | return $exitcode; |
e143e9d8 DM |
595 | } |
596 | ||
2d38b8a1 TL |
597 | # Run a command with a tcp socket as standard input. |
598 | sub pipe_socket_to_command { | |
599 | my ($cmd, $ip, $port) = @_; | |
600 | ||
601 | my $params = { | |
602 | Listen => 1, | |
603 | ReuseAddr => 1, | |
604 | Proto => &Socket::IPPROTO_TCP, | |
605 | GetAddrInfoFlags => 0, | |
606 | LocalAddr => $ip, | |
607 | LocalPort => $port, | |
608 | }; | |
609 | my $socket = IO::Socket::IP->new(%$params) or die "failed to open socket: $!\n"; | |
610 | ||
611 | print "$ip\n$port\n"; # tell remote where to connect | |
612 | *STDOUT->flush(); | |
613 | ||
614 | alarm 0; | |
615 | local $SIG{ALRM} = sub { die "timed out waiting for client\n" }; | |
616 | alarm 30; | |
617 | my $client = $socket->accept; # Wait for a client | |
618 | alarm 0; | |
619 | close($socket); | |
620 | ||
621 | # We want that the command talks over the TCP socket and takes | |
622 | # ownership of it, so that when it closes it the connection is | |
623 | # terminated, so we need to be able to close the socket. So we | |
624 | # can't really use PVE::Tools::run_command(). | |
625 | my $pid = fork() // die "fork failed: $!\n"; | |
626 | if (!$pid) { | |
627 | POSIX::dup2(fileno($client), 0); | |
628 | POSIX::dup2(fileno($client), 1); | |
629 | close($client); | |
630 | exec {$cmd->[0]} @$cmd or do { | |
631 | warn "exec failed: $!\n"; | |
632 | POSIX::_exit(1); | |
633 | }; | |
634 | } | |
635 | ||
636 | close($client); | |
637 | if (waitpid($pid, 0) != $pid) { | |
638 | kill(15 => $pid); # if we got interrupted terminate the child | |
639 | my $count = 0; | |
640 | while (waitpid($pid, POSIX::WNOHANG) != $pid) { | |
641 | usleep(100000); | |
642 | $count++; | |
643 | kill(9 => $pid), last if $count > 300; # 30 second timeout | |
644 | } | |
645 | } | |
646 | if (my $sig = ($? & 127)) { | |
647 | die "got signal $sig\n"; | |
648 | } elsif (my $exitcode = ($? >> 8)) { | |
649 | die "exit code $exitcode\n"; | |
650 | } | |
651 | ||
652 | return undef; | |
653 | } | |
654 | ||
e143e9d8 | 655 | sub split_list { |
0a3de87e | 656 | my $listtxt = shift // ''; |
e143e9d8 | 657 | |
d2b0374d | 658 | return split (/\0/, $listtxt) if $listtxt =~ m/\0/; |
813a5c0d | 659 | |
d2b0374d | 660 | $listtxt =~ s/[,;]/ /g; |
e143e9d8 DM |
661 | $listtxt =~ s/^\s+//; |
662 | ||
663 | my @data = split (/\s+/, $listtxt); | |
664 | ||
665 | return @data; | |
666 | } | |
667 | ||
668 | sub trim { | |
669 | my $txt = shift; | |
670 | ||
671 | return $txt if !defined($txt); | |
672 | ||
673 | $txt =~ s/^\s+//; | |
674 | $txt =~ s/\s+$//; | |
813a5c0d | 675 | |
e143e9d8 DM |
676 | return $txt; |
677 | } | |
678 | ||
679 | # simple uri templates like "/vms/{vmid}" | |
680 | sub template_replace { | |
681 | my ($tmpl, $data) = @_; | |
682 | ||
3250f5c7 | 683 | return $tmpl if !$tmpl; |
813a5c0d | 684 | |
e143e9d8 | 685 | my $res = ''; |
14410e5f | 686 | while ($tmpl =~ m/([^{]+)?(\{([^}]+)\})?/g) { |
e143e9d8 DM |
687 | $res .= $1 if $1; |
688 | $res .= ($data->{$3} || '-') if $2; | |
689 | } | |
690 | return $res; | |
691 | } | |
692 | ||
693 | sub safe_print { | |
694 | my ($filename, $fh, $data) = @_; | |
695 | ||
696 | return if !$data; | |
697 | ||
698 | my $res = print $fh $data; | |
699 | ||
700 | die "write to '$filename' failed\n" if !$res; | |
701 | } | |
702 | ||
703 | sub debmirrors { | |
704 | ||
705 | return { | |
706 | 'at' => 'ftp.at.debian.org', | |
707 | 'au' => 'ftp.au.debian.org', | |
708 | 'be' => 'ftp.be.debian.org', | |
709 | 'bg' => 'ftp.bg.debian.org', | |
710 | 'br' => 'ftp.br.debian.org', | |
711 | 'ca' => 'ftp.ca.debian.org', | |
712 | 'ch' => 'ftp.ch.debian.org', | |
713 | 'cl' => 'ftp.cl.debian.org', | |
714 | 'cz' => 'ftp.cz.debian.org', | |
715 | 'de' => 'ftp.de.debian.org', | |
716 | 'dk' => 'ftp.dk.debian.org', | |
717 | 'ee' => 'ftp.ee.debian.org', | |
718 | 'es' => 'ftp.es.debian.org', | |
719 | 'fi' => 'ftp.fi.debian.org', | |
720 | 'fr' => 'ftp.fr.debian.org', | |
721 | 'gr' => 'ftp.gr.debian.org', | |
722 | 'hk' => 'ftp.hk.debian.org', | |
723 | 'hr' => 'ftp.hr.debian.org', | |
724 | 'hu' => 'ftp.hu.debian.org', | |
725 | 'ie' => 'ftp.ie.debian.org', | |
726 | 'is' => 'ftp.is.debian.org', | |
727 | 'it' => 'ftp.it.debian.org', | |
728 | 'jp' => 'ftp.jp.debian.org', | |
729 | 'kr' => 'ftp.kr.debian.org', | |
730 | 'mx' => 'ftp.mx.debian.org', | |
731 | 'nl' => 'ftp.nl.debian.org', | |
732 | 'no' => 'ftp.no.debian.org', | |
733 | 'nz' => 'ftp.nz.debian.org', | |
734 | 'pl' => 'ftp.pl.debian.org', | |
735 | 'pt' => 'ftp.pt.debian.org', | |
736 | 'ro' => 'ftp.ro.debian.org', | |
737 | 'ru' => 'ftp.ru.debian.org', | |
738 | 'se' => 'ftp.se.debian.org', | |
739 | 'si' => 'ftp.si.debian.org', | |
740 | 'sk' => 'ftp.sk.debian.org', | |
741 | 'tr' => 'ftp.tr.debian.org', | |
742 | 'tw' => 'ftp.tw.debian.org', | |
743 | 'gb' => 'ftp.uk.debian.org', | |
744 | 'us' => 'ftp.us.debian.org', | |
745 | }; | |
746 | } | |
747 | ||
910d57b0 DM |
748 | my $keymaphash = { |
749 | 'dk' => ['Danish', 'da', 'qwerty/dk-latin1.kmap.gz', 'dk', 'nodeadkeys'], | |
750 | 'de' => ['German', 'de', 'qwertz/de-latin1-nodeadkeys.kmap.gz', 'de', 'nodeadkeys' ], | |
813a5c0d | 751 | 'de-ch' => ['Swiss-German', 'de-ch', 'qwertz/sg-latin1.kmap.gz', 'ch', 'de_nodeadkeys' ], |
5a5ca434 DM |
752 | 'en-gb' => ['United Kingdom', 'en-gb', 'qwerty/uk.kmap.gz' , 'gb', undef], |
753 | 'en-us' => ['U.S. English', 'en-us', 'qwerty/us-latin1.kmap.gz', 'us', undef ], | |
910d57b0 DM |
754 | 'es' => ['Spanish', 'es', 'qwerty/es.kmap.gz', 'es', 'nodeadkeys'], |
755 | #'et' => [], # Ethopia or Estonia ?? | |
756 | 'fi' => ['Finnish', 'fi', 'qwerty/fi-latin1.kmap.gz', 'fi', 'nodeadkeys'], | |
757 | #'fo' => ['Faroe Islands', 'fo', ???, 'fo', 'nodeadkeys'], | |
758 | 'fr' => ['French', 'fr', 'azerty/fr-latin1.kmap.gz', 'fr', 'nodeadkeys'], | |
759 | 'fr-be' => ['Belgium-French', 'fr-be', 'azerty/be2-latin1.kmap.gz', 'be', 'nodeadkeys'], | |
760 | 'fr-ca' => ['Canada-French', 'fr-ca', 'qwerty/cf.kmap.gz', 'ca', 'fr-legacy'], | |
761 | 'fr-ch' => ['Swiss-French', 'fr-ch', 'qwertz/fr_CH-latin1.kmap.gz', 'ch', 'fr_nodeadkeys'], | |
762 | #'hr' => ['Croatia', 'hr', 'qwertz/croat.kmap.gz', 'hr', ??], # latin2? | |
763 | 'hu' => ['Hungarian', 'hu', 'qwertz/hu.kmap.gz', 'hu', undef], | |
764 | 'is' => ['Icelandic', 'is', 'qwerty/is-latin1.kmap.gz', 'is', 'nodeadkeys'], | |
765 | 'it' => ['Italian', 'it', 'qwerty/it2.kmap.gz', 'it', 'nodeadkeys'], | |
766 | 'jp' => ['Japanese', 'ja', 'qwerty/jp106.kmap.gz', 'jp', undef], | |
767 | 'lt' => ['Lithuanian', 'lt', 'qwerty/lt.kmap.gz', 'lt', 'std'], | |
768 | #'lv' => ['Latvian', 'lv', 'qwerty/lv-latin4.kmap.gz', 'lv', ??], # latin4 or latin7? | |
769 | 'mk' => ['Macedonian', 'mk', 'qwerty/mk.kmap.gz', 'mk', 'nodeadkeys'], | |
770 | 'nl' => ['Dutch', 'nl', 'qwerty/nl.kmap.gz', 'nl', undef], | |
771 | #'nl-be' => ['Belgium-Dutch', 'nl-be', ?, ?, ?], | |
813a5c0d | 772 | 'no' => ['Norwegian', 'no', 'qwerty/no-latin1.kmap.gz', 'no', 'nodeadkeys'], |
910d57b0 DM |
773 | 'pl' => ['Polish', 'pl', 'qwerty/pl.kmap.gz', 'pl', undef], |
774 | 'pt' => ['Portuguese', 'pt', 'qwerty/pt-latin1.kmap.gz', 'pt', 'nodeadkeys'], | |
775 | 'pt-br' => ['Brazil-Portuguese', 'pt-br', 'qwerty/br-latin1.kmap.gz', 'br', 'nodeadkeys'], | |
fb3a1b29 | 776 | #'ru' => ['Russian', 'ru', 'qwerty/ru.kmap.gz', 'ru', undef], # don't know? |
910d57b0 | 777 | 'si' => ['Slovenian', 'sl', 'qwertz/slovene.kmap.gz', 'si', undef], |
9934cd0b | 778 | 'se' => ['Swedish', 'sv', 'qwerty/se-latin1.kmap.gz', 'se', 'nodeadkeys'], |
910d57b0 | 779 | #'th' => [], |
c10cc112 | 780 | 'tr' => ['Turkish', 'tr', 'qwerty/trq.kmap.gz', 'tr', undef], |
910d57b0 DM |
781 | }; |
782 | ||
783 | my $kvmkeymaparray = []; | |
0a7de820 | 784 | foreach my $lc (sort keys %$keymaphash) { |
910d57b0 DM |
785 | push @$kvmkeymaparray, $keymaphash->{$lc}->[1]; |
786 | } | |
787 | ||
e143e9d8 | 788 | sub kvmkeymaps { |
910d57b0 DM |
789 | return $keymaphash; |
790 | } | |
791 | ||
792 | sub kvmkeymaplist { | |
793 | return $kvmkeymaparray; | |
e143e9d8 DM |
794 | } |
795 | ||
796 | sub extract_param { | |
797 | my ($param, $key) = @_; | |
798 | ||
799 | my $res = $param->{$key}; | |
800 | delete $param->{$key}; | |
801 | ||
802 | return $res; | |
803 | } | |
804 | ||
eb7047f6 | 805 | # Note: we use this to wait until vncterm/spiceterm is ready |
ec6d95b4 | 806 | sub wait_for_vnc_port { |
590b924e | 807 | my ($port, $family, $timeout) = @_; |
ec6d95b4 DM |
808 | |
809 | $timeout = 5 if !$timeout; | |
eb7047f6 DM |
810 | my $sleeptime = 0; |
811 | my $starttime = [gettimeofday]; | |
812 | my $elapsed; | |
ec6d95b4 | 813 | |
590b924e TL |
814 | my $cmd = ['/bin/ss', '-Htln', "sport = :$port"]; |
815 | push @$cmd, $family == AF_INET6 ? '-6' : '-4' if defined($family); | |
816 | ||
9a41a7b7 | 817 | my $found; |
eb7047f6 | 818 | while (($elapsed = tv_interval($starttime)) < $timeout) { |
9a41a7b7 | 819 | # -Htln = don't print header, tcp, listening sockets only, numeric ports |
590b924e | 820 | run_command($cmd, outfunc => sub { |
9a41a7b7 TL |
821 | my $line = shift; |
822 | if ($line =~ m/^LISTEN\s+\d+\s+\d+\s+\S+:(\d+)\s/) { | |
823 | $found = 1 if ($port == $1); | |
ec6d95b4 | 824 | } |
9a41a7b7 TL |
825 | }); |
826 | return 1 if $found; | |
eb7047f6 DM |
827 | $sleeptime += 100000 if $sleeptime < 1000000; |
828 | usleep($sleeptime); | |
ec6d95b4 DM |
829 | } |
830 | ||
8fd0d634 | 831 | die "Timeout while waiting for port '$port' to get ready!\n"; |
ec6d95b4 DM |
832 | } |
833 | ||
59b3f563 | 834 | sub next_unused_port { |
c14960cc | 835 | my ($range_start, $range_end, $family, $address) = @_; |
59b3f563 DM |
836 | |
837 | # We use a file to register allocated ports. | |
838 | # Those registrations expires after $expiretime. | |
839 | # We use this to avoid race conditions between | |
840 | # allocation and use of ports. | |
841 | ||
842 | my $filename = "/var/tmp/pve-reserved-ports"; | |
e143e9d8 | 843 | |
59b3f563 | 844 | my $code = sub { |
e143e9d8 | 845 | |
59b3f563 DM |
846 | my $expiretime = 5; |
847 | my $ctime = time(); | |
e143e9d8 | 848 | |
59b3f563 DM |
849 | my $ports = {}; |
850 | ||
851 | if (my $fh = IO::File->new ($filename, "r")) { | |
852 | while (my $line = <$fh>) { | |
853 | if ($line =~ m/^(\d+)\s(\d+)$/) { | |
854 | my ($port, $timestamp) = ($1, $2); | |
855 | if (($timestamp + $expiretime) > $ctime) { | |
856 | $ports->{$port} = $timestamp; # not expired | |
813a5c0d | 857 | } |
59b3f563 DM |
858 | } |
859 | } | |
e143e9d8 | 860 | } |
813a5c0d | 861 | |
59b3f563 | 862 | my $newport; |
c14960cc WB |
863 | my %sockargs = (Listen => 5, |
864 | ReuseAddr => 1, | |
865 | Family => $family, | |
a0ecb159 | 866 | Proto => IPPROTO_TCP, |
c14960cc WB |
867 | GetAddrInfoFlags => 0); |
868 | $sockargs{LocalAddr} = $address if defined($address); | |
59b3f563 DM |
869 | |
870 | for (my $p = $range_start; $p < $range_end; $p++) { | |
871 | next if $ports->{$p}; # reserved | |
872 | ||
c14960cc WB |
873 | $sockargs{LocalPort} = $p; |
874 | my $sock = IO::Socket::IP->new(%sockargs); | |
59b3f563 DM |
875 | |
876 | if ($sock) { | |
877 | close($sock); | |
878 | $newport = $p; | |
879 | $ports->{$p} = $ctime; | |
880 | last; | |
881 | } | |
882 | } | |
813a5c0d | 883 | |
59b3f563 DM |
884 | my $data = ""; |
885 | foreach my $p (keys %$ports) { | |
886 | $data .= "$p $ports->{$p}\n"; | |
887 | } | |
813a5c0d | 888 | |
59b3f563 | 889 | file_set_contents($filename, $data); |
e143e9d8 | 890 | |
59b3f563 DM |
891 | return $newport; |
892 | }; | |
893 | ||
3c476ed5 | 894 | my $p = lock_file('/var/lock/pve-ports.lck', 10, $code); |
59b3f563 | 895 | die $@ if $@; |
813a5c0d | 896 | |
59b3f563 DM |
897 | die "unable to find free port (${range_start}-${range_end})\n" if !$p; |
898 | ||
899 | return $p; | |
900 | } | |
901 | ||
902 | sub next_migrate_port { | |
c14960cc WB |
903 | my ($family, $address) = @_; |
904 | return next_unused_port(60000, 60050, $family, $address); | |
59b3f563 DM |
905 | } |
906 | ||
907 | sub next_vnc_port { | |
c14960cc WB |
908 | my ($family, $address) = @_; |
909 | return next_unused_port(5900, 6000, $family, $address); | |
59b3f563 | 910 | } |
e143e9d8 | 911 | |
30aeac2e DC |
912 | sub spice_port_range { |
913 | return (61000, 61999); | |
914 | } | |
915 | ||
2f13cbb5 | 916 | sub next_spice_port { |
c14960cc | 917 | my ($family, $address) = @_; |
30aeac2e | 918 | return next_unused_port(spice_port_range(), $family, $address); |
2f13cbb5 DM |
919 | } |
920 | ||
893ec6f2 WB |
921 | sub must_stringify { |
922 | my ($value) = @_; | |
923 | eval { $value = "$value" }; | |
924 | return "error turning value into a string: $@" if $@; | |
925 | return $value; | |
926 | } | |
927 | ||
72fba911 EK |
928 | # sigkill after $timeout a $sub running in a fork if it can't write a pipe |
929 | # the $sub has to return a single scalar | |
930 | sub run_fork_with_timeout { | |
931 | my ($timeout, $sub) = @_; | |
932 | ||
933 | my $res; | |
934 | my $error; | |
935 | my $pipe_out = IO::Pipe->new(); | |
72fba911 EK |
936 | |
937 | # disable pending alarms, save their remaining time | |
938 | my $prev_alarm = alarm 0; | |
939 | ||
eead1cca | 940 | # avoid leaving a zombie if the parent gets interrupted |
72fba911 | 941 | my $sig_received; |
72fba911 EK |
942 | |
943 | my $child = fork(); | |
944 | if (!defined($child)) { | |
945 | die "fork failed: $!\n"; | |
946 | return $res; | |
947 | } | |
948 | ||
949 | if (!$child) { | |
950 | $pipe_out->writer(); | |
72fba911 EK |
951 | |
952 | eval { | |
953 | $res = $sub->(); | |
f2c72fc3 | 954 | print {$pipe_out} encode_json({ result => $res }); |
72fba911 EK |
955 | $pipe_out->flush(); |
956 | }; | |
957 | if (my $err = $@) { | |
893ec6f2 | 958 | print {$pipe_out} encode_json({ error => must_stringify($err) }); |
f2c72fc3 | 959 | $pipe_out->flush(); |
72fba911 EK |
960 | POSIX::_exit(1); |
961 | } | |
962 | POSIX::_exit(0); | |
963 | } | |
964 | ||
2e353dfb DC |
965 | local $SIG{INT} = sub { $sig_received++; }; |
966 | local $SIG{TERM} = sub { | |
967 | $error //= "interrupted by unexpected signal\n"; | |
968 | kill('TERM', $child); | |
969 | }; | |
970 | ||
72fba911 | 971 | $pipe_out->reader(); |
72fba911 EK |
972 | |
973 | my $readvalues = sub { | |
974 | local $/ = undef; | |
2e353dfb | 975 | my $child_res = decode_json(readline_nointr($pipe_out)); |
f2c72fc3 TL |
976 | $res = $child_res->{result}; |
977 | $error = $child_res->{error}; | |
72fba911 EK |
978 | }; |
979 | eval { | |
a2d049af WB |
980 | if (defined($timeout)) { |
981 | run_with_timeout($timeout, $readvalues); | |
982 | } else { | |
983 | $readvalues->(); | |
984 | } | |
72fba911 EK |
985 | }; |
986 | warn $@ if $@; | |
987 | $pipe_out->close(); | |
72fba911 EK |
988 | kill('KILL', $child); |
989 | waitpid($child, 0); | |
990 | ||
991 | alarm $prev_alarm; | |
992 | die "interrupted by unexpected signal\n" if $sig_received; | |
993 | ||
994 | die $error if $error; | |
995 | return $res; | |
996 | } | |
997 | ||
a2d049af WB |
998 | sub run_fork { |
999 | my ($code) = @_; | |
1000 | return run_fork_with_timeout(undef, $code); | |
1001 | } | |
1002 | ||
813a5c0d | 1003 | # NOTE: NFS syscall can't be interrupted, so alarm does |
e143e9d8 DM |
1004 | # not work to provide timeouts. |
1005 | # from 'man nfs': "Only SIGKILL can interrupt a pending NFS operation" | |
97c8c857 | 1006 | # So fork() before using Filesys::Df |
e143e9d8 DM |
1007 | sub df { |
1008 | my ($path, $timeout) = @_; | |
1009 | ||
4fdc9659 | 1010 | my $df = sub { return Filesys::Df::df($path, 1) }; |
97c8c857 | 1011 | |
4fdc9659 TL |
1012 | my $res = eval { run_fork_with_timeout($timeout, $df) } // {}; |
1013 | warn $@ if $@; | |
97c8c857 | 1014 | |
8bc99fda TL |
1015 | # untaint, but be flexible: PB usage can result in scientific notation |
1016 | my ($blocks, $used, $bavail) = map { defined($_) ? (/^([\d\.e\-+]+)$/) : 0 } | |
fd58bb2b DC |
1017 | $res->@{qw(blocks used bavail)}; |
1018 | ||
4fdc9659 | 1019 | return { |
fd58bb2b DC |
1020 | total => $blocks, |
1021 | used => $used, | |
1022 | avail => $bavail, | |
e143e9d8 | 1023 | }; |
e143e9d8 DM |
1024 | } |
1025 | ||
62635f92 DM |
1026 | sub du { |
1027 | my ($path, $timeout) = @_; | |
1028 | ||
1029 | my $size; | |
1030 | ||
1031 | $timeout //= 10; | |
1032 | ||
1033 | my $parser = sub { | |
1034 | my $line = shift; | |
1035 | ||
1036 | if ($line =~ m/^(\d+)\s+total$/) { | |
1037 | $size = $1; | |
1038 | } | |
1039 | }; | |
1040 | ||
1041 | run_command(['du', '-scb', $path], outfunc => $parser, timeout => $timeout); | |
1042 | ||
1043 | return $size; | |
1044 | } | |
1045 | ||
e143e9d8 DM |
1046 | # UPID helper |
1047 | # We use this to uniquely identify a process. | |
813a5c0d | 1048 | # An 'Unique Process ID' has the following format: |
e143e9d8 DM |
1049 | # "UPID:$node:$pid:$pstart:$startime:$dtype:$id:$user" |
1050 | ||
1051 | sub upid_encode { | |
1052 | my $d = shift; | |
1053 | ||
19cec230 DM |
1054 | # Note: pstart can be > 32bit if uptime > 497 days, so this can result in |
1055 | # more that 8 characters for pstart | |
813a5c0d DC |
1056 | return sprintf("UPID:%s:%08X:%08X:%08X:%s:%s:%s:", $d->{node}, $d->{pid}, |
1057 | $d->{pstart}, $d->{starttime}, $d->{type}, $d->{id}, | |
e143e9d8 DM |
1058 | $d->{user}); |
1059 | } | |
1060 | ||
1061 | sub upid_decode { | |
1062 | my ($upid, $noerr) = @_; | |
1063 | ||
1064 | my $res; | |
1065 | my $filename; | |
1066 | ||
1067 | # "UPID:$node:$pid:$pstart:$startime:$dtype:$id:$user" | |
19cec230 DM |
1068 | # Note: allow up to 9 characters for pstart (work until 20 years uptime) |
1069 | 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 | 1070 | $res->{node} = $1; |
3702f038 DM |
1071 | $res->{pid} = hex($3); |
1072 | $res->{pstart} = hex($4); | |
1073 | $res->{starttime} = hex($5); | |
1074 | $res->{type} = $6; | |
1075 | $res->{id} = $7; | |
1076 | $res->{user} = $8; | |
1077 | ||
1078 | my $subdir = substr($5, 7, 8); | |
e143e9d8 DM |
1079 | $filename = "$pvetaskdir/$subdir/$upid"; |
1080 | ||
1081 | } else { | |
1082 | return undef if $noerr; | |
1083 | die "unable to parse worker upid '$upid'\n"; | |
1084 | } | |
1085 | ||
1086 | return wantarray ? ($res, $filename) : $res; | |
1087 | } | |
1088 | ||
1089 | sub upid_open { | |
1090 | my ($upid) = @_; | |
1091 | ||
813a5c0d | 1092 | my ($task, $filename) = upid_decode($upid); |
e143e9d8 DM |
1093 | |
1094 | my $dirname = dirname($filename); | |
1095 | make_path($dirname); | |
1096 | ||
1097 | my $wwwid = getpwnam('www-data') || | |
1098 | die "getpwnam failed"; | |
1099 | ||
1100 | my $perm = 0640; | |
813a5c0d | 1101 | |
e143e9d8 DM |
1102 | my $outfh = IO::File->new ($filename, O_WRONLY|O_CREAT|O_EXCL, $perm) || |
1103 | die "unable to create output file '$filename' - $!\n"; | |
2b8e0f12 | 1104 | chown $wwwid, -1, $outfh; |
e143e9d8 DM |
1105 | |
1106 | return $outfh; | |
1107 | }; | |
1108 | ||
1109 | sub upid_read_status { | |
1110 | my ($upid) = @_; | |
1111 | ||
1112 | my ($task, $filename) = upid_decode($upid); | |
1113 | my $fh = IO::File->new($filename, "r"); | |
1114 | return "unable to open file - $!" if !$fh; | |
cc9121d3 | 1115 | my $maxlen = 4096; |
e143e9d8 DM |
1116 | sysseek($fh, -$maxlen, 2); |
1117 | my $readbuf = ''; | |
1118 | my $br = sysread($fh, $readbuf, $maxlen); | |
1119 | close($fh); | |
1120 | if ($br) { | |
1121 | return "unable to extract last line" | |
1122 | if $readbuf !~ m/\n?(.+)$/; | |
1123 | my $line = $1; | |
1124 | if ($line =~ m/^TASK OK$/) { | |
1125 | return 'OK'; | |
1126 | } elsif ($line =~ m/^TASK ERROR: (.+)$/) { | |
1127 | return $1; | |
1128 | } else { | |
1129 | return "unexpected status"; | |
1130 | } | |
1131 | } | |
1132 | return "unable to read tail (got $br bytes)"; | |
1133 | } | |
1134 | ||
813a5c0d | 1135 | # useful functions to store comments in config files |
e143e9d8 DM |
1136 | sub encode_text { |
1137 | my ($text) = @_; | |
1138 | ||
1139 | # all control and hi-bit characters, and ':' | |
1140 | my $unsafe = "^\x20-\x39\x3b-\x7e"; | |
1141 | return uri_escape(Encode::encode("utf8", $text), $unsafe); | |
1142 | } | |
1143 | ||
1144 | sub decode_text { | |
1145 | my ($data) = @_; | |
1146 | ||
1147 | return Encode::decode("utf8", uri_unescape($data)); | |
1148 | } | |
1149 | ||
6d46baf6 DM |
1150 | # depreciated - do not use! |
1151 | # we now decode all parameters by default | |
815b2aba DM |
1152 | sub decode_utf8_parameters { |
1153 | my ($param) = @_; | |
1154 | ||
34ebb226 | 1155 | foreach my $p (qw(comment description firstname lastname)) { |
815b2aba DM |
1156 | $param->{$p} = decode('utf8', $param->{$p}) if $param->{$p}; |
1157 | } | |
1158 | ||
1159 | return $param; | |
1160 | } | |
1161 | ||
a413a515 | 1162 | sub random_ether_addr { |
12392173 | 1163 | my ($prefix) = @_; |
a413a515 | 1164 | |
46a11c00 DM |
1165 | my ($seconds, $microseconds) = gettimeofday; |
1166 | ||
d743b69c | 1167 | my $rand = Digest::SHA::sha1($$, rand(), $seconds, $microseconds); |
a413a515 | 1168 | |
85d5625a | 1169 | # clear multicast, set local id |
de9a267f | 1170 | vec($rand, 0, 8) = (vec($rand, 0, 8) & 0xfe) | 2; |
a413a515 | 1171 | |
12392173 WB |
1172 | my $addr = sprintf("%02X:%02X:%02X:%02X:%02X:%02X", unpack("C6", $rand)); |
1173 | if (defined($prefix)) { | |
1174 | $addr = uc($prefix) . substr($addr, length($prefix)); | |
1175 | } | |
1176 | return $addr; | |
a413a515 | 1177 | } |
e143e9d8 | 1178 | |
762e3223 DM |
1179 | sub shellquote { |
1180 | my $str = shift; | |
1181 | ||
7514b23a | 1182 | return String::ShellQuote::shell_quote($str); |
762e3223 DM |
1183 | } |
1184 | ||
65e1d3fc DM |
1185 | sub cmd2string { |
1186 | my ($cmd) = @_; | |
1187 | ||
1188 | die "no arguments" if !$cmd; | |
1189 | ||
1190 | return $cmd if !ref($cmd); | |
1191 | ||
1192 | my @qa = (); | |
1193 | foreach my $arg (@$cmd) { push @qa, shellquote($arg); } | |
1194 | ||
1195 | return join (' ', @qa); | |
1196 | } | |
1197 | ||
e38bcd35 | 1198 | # split an shell argument string into an array, |
f9125663 DM |
1199 | sub split_args { |
1200 | my ($str) = @_; | |
1201 | ||
e38bcd35 | 1202 | return $str ? [ Text::ParseWords::shellwords($str) ] : []; |
f9125663 DM |
1203 | } |
1204 | ||
804b1041 | 1205 | sub dump_logfile { |
eb7e5538 | 1206 | my ($filename, $start, $limit, $filter) = @_; |
804b1041 DM |
1207 | |
1208 | my $lines = []; | |
1209 | my $count = 0; | |
1210 | ||
1211 | my $fh = IO::File->new($filename, "r"); | |
813a5c0d | 1212 | if (!$fh) { |
804b1041 DM |
1213 | $count++; |
1214 | push @$lines, { n => $count, t => "unable to open file - $!"}; | |
1215 | return ($count, $lines); | |
1216 | } | |
1217 | ||
1218 | $start = 0 if !$start; | |
1219 | $limit = 50 if !$limit; | |
1220 | ||
1221 | my $line; | |
eb7e5538 DM |
1222 | |
1223 | if ($filter) { | |
1224 | # duplicate code, so that we do not slow down normal path | |
1225 | while (defined($line = <$fh>)) { | |
1226 | next if $line !~ m/$filter/; | |
1227 | next if $count++ < $start; | |
1228 | next if $limit <= 0; | |
1229 | chomp $line; | |
1230 | push @$lines, { n => $count, t => $line}; | |
1231 | $limit--; | |
1232 | } | |
1233 | } else { | |
1234 | while (defined($line = <$fh>)) { | |
1235 | next if $count++ < $start; | |
1236 | next if $limit <= 0; | |
1237 | chomp $line; | |
1238 | push @$lines, { n => $count, t => $line}; | |
1239 | $limit--; | |
1240 | } | |
804b1041 DM |
1241 | } |
1242 | ||
1243 | close($fh); | |
1244 | ||
6de95a66 DM |
1245 | # HACK: ExtJS store.guaranteeRange() does not like empty array |
1246 | # so we add a line | |
1247 | if (!$count) { | |
1248 | $count++; | |
1249 | push @$lines, { n => $count, t => "no content"}; | |
1250 | } | |
1251 | ||
1252 | return ($count, $lines); | |
1253 | } | |
1254 | ||
1255 | sub dump_journal { | |
ccf60d3b | 1256 | my ($start, $limit, $since, $until, $service) = @_; |
6de95a66 DM |
1257 | |
1258 | my $lines = []; | |
1259 | my $count = 0; | |
813a5c0d | 1260 | |
6de95a66 DM |
1261 | $start = 0 if !$start; |
1262 | $limit = 50 if !$limit; | |
1263 | ||
1264 | my $parser = sub { | |
1265 | my $line = shift; | |
1266 | ||
1267 | return if $count++ < $start; | |
1268 | return if $limit <= 0; | |
1269 | push @$lines, { n => int($count), t => $line}; | |
1270 | $limit--; | |
1271 | }; | |
1272 | ||
1273 | my $cmd = ['journalctl', '-o', 'short', '--no-pager']; | |
19e95cd0 | 1274 | |
ccf60d3b | 1275 | push @$cmd, '--unit', $service if $service; |
19e95cd0 TL |
1276 | push @$cmd, '--since', $since if $since; |
1277 | push @$cmd, '--until', $until if $until; | |
6de95a66 DM |
1278 | run_command($cmd, outfunc => $parser); |
1279 | ||
804b1041 DM |
1280 | # HACK: ExtJS store.guaranteeRange() does not like empty array |
1281 | # so we add a line | |
1282 | if (!$count) { | |
1283 | $count++; | |
1284 | push @$lines, { n => $count, t => "no content"}; | |
1285 | } | |
1286 | ||
1287 | return ($count, $lines); | |
1288 | } | |
1289 | ||
7eb283fb DM |
1290 | sub dir_glob_regex { |
1291 | my ($dir, $regex) = @_; | |
1292 | ||
1293 | my $dh = IO::Dir->new ($dir); | |
1294 | return wantarray ? () : undef if !$dh; | |
813a5c0d DC |
1295 | |
1296 | while (defined(my $tmp = $dh->read)) { | |
7eb283fb DM |
1297 | if (my @res = $tmp =~ m/^($regex)$/) { |
1298 | $dh->close; | |
1299 | return wantarray ? @res : $tmp; | |
1300 | } | |
1301 | } | |
1302 | $dh->close; | |
1303 | ||
1304 | return wantarray ? () : undef; | |
1305 | } | |
1306 | ||
1307 | sub dir_glob_foreach { | |
1308 | my ($dir, $regex, $func) = @_; | |
1309 | ||
1310 | my $dh = IO::Dir->new ($dir); | |
1311 | if (defined $dh) { | |
1312 | while (defined(my $tmp = $dh->read)) { | |
1313 | if (my @res = $tmp =~ m/^($regex)$/) { | |
1314 | &$func (@res); | |
1315 | } | |
1316 | } | |
813a5c0d | 1317 | } |
7eb283fb DM |
1318 | } |
1319 | ||
a345b9d5 DM |
1320 | sub assert_if_modified { |
1321 | my ($digest1, $digest2) = @_; | |
1322 | ||
1323 | if ($digest1 && $digest2 && ($digest1 ne $digest2)) { | |
212fc0b7 | 1324 | die "detected modified configuration - file changed by other user? Try again.\n"; |
a345b9d5 DM |
1325 | } |
1326 | } | |
1327 | ||
2d3bca34 DM |
1328 | # Digest for short strings |
1329 | # like FNV32a, but we only return 31 bits (positive numbers) | |
1330 | sub fnv31a { | |
1331 | my ($string) = @_; | |
1332 | ||
1333 | my $hval = 0x811c9dc5; | |
1334 | ||
1335 | foreach my $c (unpack('C*', $string)) { | |
1336 | $hval ^= $c; | |
1337 | $hval += ( | |
1338 | (($hval << 1) ) + | |
1339 | (($hval << 4) ) + | |
1340 | (($hval << 7) ) + | |
1341 | (($hval << 8) ) + | |
1342 | (($hval << 24) ) ); | |
1343 | $hval = $hval & 0xffffffff; | |
1344 | } | |
1345 | return $hval & 0x7fffffff; | |
1346 | } | |
1347 | ||
1348 | sub fnv31a_hex { return sprintf("%X", fnv31a(@_)); } | |
1349 | ||
8df6b794 WB |
1350 | sub unpack_sockaddr_in46 { |
1351 | my ($sin) = @_; | |
1352 | my $family = Socket::sockaddr_family($sin); | |
1353 | my ($port, $host) = ($family == AF_INET6 ? Socket::unpack_sockaddr_in6($sin) | |
1354 | : Socket::unpack_sockaddr_in($sin)); | |
1355 | return ($family, $port, $host); | |
1356 | } | |
1357 | ||
a0b6ef52 WB |
1358 | sub getaddrinfo_all { |
1359 | my ($hostname, @opts) = @_; | |
a956854f | 1360 | my %hints = ( flags => AI_V4MAPPED | AI_ALL, |
a0b6ef52 | 1361 | @opts ); |
a956854f | 1362 | my ($err, @res) = Socket::getaddrinfo($hostname, '0', \%hints); |
a0b6ef52 WB |
1363 | die "failed to get address info for: $hostname: $err\n" if $err; |
1364 | return @res; | |
1365 | } | |
a956854f | 1366 | |
a0b6ef52 WB |
1367 | sub get_host_address_family { |
1368 | my ($hostname, $socktype) = @_; | |
1369 | my @res = getaddrinfo_all($hostname, socktype => $socktype); | |
1370 | return $res[0]->{family}; | |
a956854f WB |
1371 | } |
1372 | ||
d3c8f0c1 EK |
1373 | # get the fully qualified domain name of a host |
1374 | # same logic as hostname(1): The FQDN is the name getaddrinfo(3) returns, | |
1375 | # given a nodename as a parameter | |
1376 | sub get_fqdn { | |
1377 | my ($nodename) = @_; | |
1378 | ||
1379 | my $hints = { | |
1380 | flags => AI_CANONNAME, | |
1381 | socktype => SOCK_DGRAM | |
1382 | }; | |
1383 | ||
1384 | my ($err, @addrs) = Socket::getaddrinfo($nodename, undef, $hints); | |
1385 | ||
1386 | die "getaddrinfo: $err" if $err; | |
1387 | ||
1388 | return $addrs[0]->{canonname}; | |
1389 | } | |
1390 | ||
b2613777 WB |
1391 | # Parses any sane kind of host, or host+port pair: |
1392 | # The port is always optional and thus may be undef. | |
1393 | sub parse_host_and_port { | |
1394 | my ($address) = @_; | |
1395 | if ($address =~ /^($IPV4RE|[[:alnum:]\-.]+)(?::(\d+))?$/ || # ipv4 or host with optional ':port' | |
1396 | $address =~ /^\[($IPV6RE|$IPV4RE|[[:alnum:]\-.]+)\](?::(\d+))?$/ || # anything in brackets with optional ':port' | |
1397 | $address =~ /^($IPV6RE)(?:\.(\d+))?$/) # ipv6 with optional port separated by dot | |
1398 | { | |
1399 | return ($1, $2, 1); # end with 1 to support simple if(parse...) tests | |
1400 | } | |
1401 | return; # nothing | |
1402 | } | |
1403 | ||
0c078e66 SI |
1404 | sub setresuid($$$) { |
1405 | my ($ruid, $euid, $suid) = @_; | |
1406 | return 0 == syscall(PVE::Syscall::setresuid, $ruid, $euid, $suid); | |
1407 | } | |
1408 | ||
817c6be0 | 1409 | sub unshare($) { |
952fd95e | 1410 | my ($flags) = @_; |
c8e94d4b | 1411 | return 0 == syscall(PVE::Syscall::unshare, $flags); |
952fd95e WB |
1412 | } |
1413 | ||
891b224a WB |
1414 | sub setns($$) { |
1415 | my ($fileno, $nstype) = @_; | |
c8e94d4b | 1416 | return 0 == syscall(PVE::Syscall::setns, $fileno, $nstype); |
891b224a WB |
1417 | } |
1418 | ||
44acb12c WB |
1419 | sub syncfs($) { |
1420 | my ($fileno) = @_; | |
c8e94d4b | 1421 | return 0 == syscall(PVE::Syscall::syncfs, $fileno); |
44acb12c WB |
1422 | } |
1423 | ||
cee0e23a TL |
1424 | sub fsync($) { |
1425 | my ($fileno) = @_; | |
1426 | return 0 == syscall(PVE::Syscall::fsync, $fileno); | |
1427 | } | |
1428 | ||
44acb12c WB |
1429 | sub sync_mountpoint { |
1430 | my ($path) = @_; | |
1431 | sysopen my $fd, $path, O_PATH or die "failed to open $path: $!\n"; | |
1432 | my $result = syncfs(fileno($fd)); | |
1433 | close($fd); | |
1434 | return $result; | |
1435 | } | |
1436 | ||
b61a47db TL |
1437 | # support sending multi-part mail messages with a text and or a HTML part |
1438 | # mailto may be a single email string or an array of receivers | |
1439 | sub sendmail { | |
1440 | my ($mailto, $subject, $text, $html, $mailfrom, $author) = @_; | |
c9c6d910 | 1441 | my $mail_re = qr/[^-a-zA-Z0-9+._@]/; |
b61a47db | 1442 | |
5a873e6d | 1443 | $mailto = [ $mailto ] if !ref($mailto); |
b61a47db | 1444 | |
c9c6d910 FG |
1445 | foreach (@$mailto) { |
1446 | die "illegal character in mailto address\n" | |
1447 | if ($_ =~ $mail_re); | |
b61a47db | 1448 | } |
c9c6d910 | 1449 | |
b61a47db TL |
1450 | my $rcvrtxt = join (', ', @$mailto); |
1451 | ||
1452 | $mailfrom = $mailfrom || "root"; | |
c9c6d910 FG |
1453 | die "illegal character in mailfrom address\n" |
1454 | if $mailfrom =~ $mail_re; | |
1455 | ||
5a873e6d | 1456 | $author = $author || 'Proxmox VE'; |
b61a47db | 1457 | |
216a3f4f | 1458 | open (MAIL, "|-", "sendmail", "-B", "8BITMIME", "-f", $mailfrom, "--", @$mailto) || |
b61a47db TL |
1459 | die "unable to open 'sendmail' - $!"; |
1460 | ||
1461 | # multipart spec see https://www.ietf.org/rfc/rfc1521.txt | |
1462 | my $boundary = "----_=_NextPart_001_".int(time).$$; | |
1463 | ||
1464 | print MAIL "Content-Type: multipart/alternative;\n"; | |
1465 | print MAIL "\tboundary=\"$boundary\"\n"; | |
1466 | print MAIL "MIME-Version: 1.0\n"; | |
1467 | ||
1468 | print MAIL "FROM: $author <$mailfrom>\n"; | |
1469 | print MAIL "TO: $rcvrtxt\n"; | |
1470 | print MAIL "SUBJECT: $subject\n"; | |
1471 | print MAIL "\n"; | |
1472 | print MAIL "This is a multi-part message in MIME format.\n\n"; | |
1473 | print MAIL "--$boundary\n"; | |
1474 | ||
5a873e6d | 1475 | if (defined($text)) { |
b61a47db TL |
1476 | print MAIL "Content-Type: text/plain;\n"; |
1477 | print MAIL "\tcharset=\"UTF8\"\n"; | |
1478 | print MAIL "Content-Transfer-Encoding: 8bit\n"; | |
1479 | print MAIL "\n"; | |
1480 | ||
1481 | # avoid 'remove extra line breaks' issue (MS Outlook) | |
1482 | my $fill = ' '; | |
1483 | $text =~ s/^/$fill/gm; | |
1484 | ||
1485 | print MAIL $text; | |
1486 | ||
1487 | print MAIL "\n--$boundary\n"; | |
1488 | } | |
1489 | ||
5a873e6d | 1490 | if (defined($html)) { |
b61a47db TL |
1491 | print MAIL "Content-Type: text/html;\n"; |
1492 | print MAIL "\tcharset=\"UTF8\"\n"; | |
1493 | print MAIL "Content-Transfer-Encoding: 8bit\n"; | |
1494 | print MAIL "\n"; | |
1495 | ||
1496 | print MAIL $html; | |
1497 | ||
1498 | print MAIL "\n--$boundary--\n"; | |
1499 | } | |
1500 | ||
1501 | close(MAIL); | |
b61a47db TL |
1502 | } |
1503 | ||
26598a51 WB |
1504 | sub tempfile { |
1505 | my ($perm, %opts) = @_; | |
1506 | ||
1507 | # default permissions are stricter than with file_set_contents | |
1508 | $perm = 0600 if !defined($perm); | |
1509 | ||
f0cfc20e | 1510 | my $dir = $opts{dir} // '/run'; |
26598a51 WB |
1511 | my $mode = $opts{mode} // O_RDWR; |
1512 | $mode |= O_EXCL if !$opts{allow_links}; | |
1513 | ||
7e1ee743 WB |
1514 | my $fh = IO::File->new($dir, $mode | O_TMPFILE, $perm); |
1515 | if (!$fh && $! == EOPNOTSUPP) { | |
77b2b96f | 1516 | $dir = '/tmp' if !defined($opts{dir}); |
7e1ee743 WB |
1517 | $dir .= "/.tmpfile.$$"; |
1518 | $fh = IO::File->new($dir, $mode | O_CREAT | O_EXCL, $perm); | |
1519 | unlink($dir) if $fh; | |
1520 | } | |
1521 | die "failed to create tempfile: $!\n" if !$fh; | |
26598a51 WB |
1522 | return $fh; |
1523 | } | |
1524 | ||
1525 | sub tempfile_contents { | |
1526 | my ($data, $perm, %opts) = @_; | |
1527 | ||
1528 | my $fh = tempfile($perm, %opts); | |
1529 | eval { | |
1530 | die "unable to write to tempfile: $!\n" if !print {$fh} $data; | |
1531 | die "unable to flush to tempfile: $!\n" if !defined($fh->flush()); | |
1532 | }; | |
1533 | if (my $err = $@) { | |
1534 | close $fh; | |
1535 | die $err; | |
1536 | } | |
1537 | ||
1538 | return ("/proc/$$/fd/".$fh->fileno, $fh); | |
1539 | } | |
1540 | ||
48df47a4 FG |
1541 | sub validate_ssh_public_keys { |
1542 | my ($raw) = @_; | |
1543 | my @lines = split(/\n/, $raw); | |
1544 | ||
1545 | foreach my $line (@lines) { | |
1546 | next if $line =~ m/^\s*$/; | |
1547 | eval { | |
1548 | my ($filename, $handle) = tempfile_contents($line); | |
1549 | run_command(["ssh-keygen", "-l", "-f", $filename], | |
1550 | outfunc => sub {}, errfunc => sub {}); | |
1551 | }; | |
1552 | die "SSH public key validation error\n" if $@; | |
1553 | } | |
1554 | } | |
1555 | ||
21c56a96 WB |
1556 | sub openat($$$;$) { |
1557 | my ($dirfd, $pathname, $flags, $mode) = @_; | |
c8e94d4b | 1558 | my $fd = syscall(PVE::Syscall::openat, $dirfd, $pathname, $flags, $mode//0); |
21c56a96 WB |
1559 | return undef if $fd < 0; |
1560 | # sysopen() doesn't deal with numeric file descriptors apparently | |
1561 | # so we need to convert to a mode string for IO::Handle->new_from_fd | |
1562 | my $flagstr = ($flags & O_RDWR) ? 'rw' : ($flags & O_WRONLY) ? 'w' : 'r'; | |
1563 | my $handle = IO::Handle->new_from_fd($fd, $flagstr); | |
1564 | return $handle if $handle; | |
1565 | my $err = $!; # save error before closing the raw fd | |
c8e94d4b | 1566 | syscall(PVE::Syscall::close, $fd); # close |
21c56a96 WB |
1567 | $! = $err; |
1568 | return undef; | |
1569 | } | |
1570 | ||
1571 | sub mkdirat($$$) { | |
1572 | my ($dirfd, $name, $mode) = @_; | |
c8e94d4b | 1573 | return syscall(PVE::Syscall::mkdirat, $dirfd, $name, $mode) == 0; |
21c56a96 WB |
1574 | } |
1575 | ||
6cf6b404 FG |
1576 | sub fchownat($$$$$) { |
1577 | my ($dirfd, $pathname, $owner, $group, $flags) = @_; | |
1578 | return syscall(PVE::Syscall::fchownat, $dirfd, $pathname, $owner, $group, $flags) == 0; | |
1579 | } | |
1580 | ||
9867ff7a DM |
1581 | my $salt_starter = time(); |
1582 | ||
1583 | sub encrypt_pw { | |
1584 | my ($pw) = @_; | |
1585 | ||
1586 | $salt_starter++; | |
1587 | my $salt = substr(Digest::SHA::sha1_base64(time() + $salt_starter + $$), 0, 8); | |
1588 | ||
1589 | # crypt does not want '+' in salt (see 'man crypt') | |
1590 | $salt =~ s/\+/X/g; | |
1591 | ||
1592 | return crypt(encode("utf8", $pw), "\$5\$$salt\$"); | |
1593 | } | |
1594 | ||
8e677e74 | 1595 | # intended usage: convert_size($val, "kb" => "gb") |
95386daf DC |
1596 | # we round up to the next integer by default |
1597 | # E.g. `convert_size(1023, "b" => "kb")` returns 1 | |
8e677e74 | 1598 | # use $no_round_up to switch this off, above example would then return 0 |
95386daf DC |
1599 | # this is also true for converting down e.g. 0.0005 gb to mb returns 1 |
1600 | # (0 if $no_round_up is true) | |
1601 | # allowed formats for value: | |
1602 | # 1234 | |
1603 | # 1234. | |
1604 | # 1234.1234 | |
1605 | # .1234 | |
8e677e74 TL |
1606 | sub convert_size { |
1607 | my ($value, $from, $to, $no_round_up) = @_; | |
1608 | ||
1609 | my $units = { | |
1610 | b => 0, | |
1611 | kb => 1, | |
1612 | mb => 2, | |
1613 | gb => 3, | |
1614 | tb => 4, | |
1615 | pb => 5, | |
1616 | }; | |
1617 | ||
95386daf DC |
1618 | die "no value given" |
1619 | if !defined($value) || $value eq ""; | |
1620 | ||
1621 | $from = lc($from // ''); $to = lc($to // ''); | |
8e677e74 | 1622 | die "unknown 'from' and/or 'to' units ($from => $to)" |
95386daf | 1623 | if !defined($units->{$from}) || !defined($units->{$to}); |
8e677e74 | 1624 | |
95386daf DC |
1625 | die "value '$value' is not a valid, positive number" |
1626 | if $value !~ m/^(?:[0-9]+\.?[0-9]*|[0-9]*\.[0-9]+)$/; | |
8e677e74 | 1627 | |
95386daf DC |
1628 | my $shift_amount = ($units->{$from} - $units->{$to}) * 10; |
1629 | ||
1630 | $value *= 2**$shift_amount; | |
1631 | $value++ if !$no_round_up && ($value - int($value)) > 0.0; | |
8e677e74 | 1632 | |
95386daf | 1633 | return int($value); |
8e677e74 TL |
1634 | } |
1635 | ||
e03a8365 DC |
1636 | # uninterruptible readline |
1637 | # retries on EINTR | |
1638 | sub readline_nointr { | |
1639 | my ($fh) = @_; | |
1640 | my $line; | |
1641 | while (1) { | |
1642 | $line = <$fh>; | |
1643 | last if defined($line) || ($! != EINTR); | |
1644 | } | |
1645 | return $line; | |
1646 | } | |
1647 | ||
ce007e99 | 1648 | my $host_arch; |
b8faece3 | 1649 | sub get_host_arch { |
ce007e99 SR |
1650 | $host_arch = (POSIX::uname())[4] if !$host_arch; |
1651 | return $host_arch; | |
732b693f DM |
1652 | } |
1653 | ||
243c4e58 WB |
1654 | # Devices are: [ (12 bits minor) (12 bits major) (8 bits minor) ] |
1655 | sub dev_t_major($) { | |
1656 | my ($dev_t) = @_; | |
1657 | return (int($dev_t) & 0xfff00) >> 8; | |
1658 | } | |
1659 | ||
1660 | sub dev_t_minor($) { | |
1661 | my ($dev_t) = @_; | |
1662 | $dev_t = int($dev_t); | |
1663 | return (($dev_t >> 12) & 0xfff00) | ($dev_t & 0xff); | |
1664 | } | |
1665 | ||
a59544e7 SR |
1666 | # Given an array of array refs [ \[a b c], \[a b b], \[e b a] ] |
1667 | # Returns the intersection of elements as a single array [a b] | |
1668 | sub array_intersect { | |
1669 | my ($arrays) = @_; | |
1670 | ||
3982313e TL |
1671 | if (!ref($arrays->[0])) { |
1672 | $arrays = [ grep { ref($_) eq 'ARRAY' } @_ ]; | |
1673 | } | |
1674 | ||
38586028 TL |
1675 | return [] if scalar(@$arrays) == 0; |
1676 | return $arrays->[0] if scalar(@$arrays) == 1; | |
a59544e7 | 1677 | |
4c28a8bc TL |
1678 | my $array_unique = sub { |
1679 | my %seen = (); | |
1680 | return grep { ! $seen{ $_ }++ } @_; | |
1681 | }; | |
1682 | ||
38586028 TL |
1683 | # base idea is to get all unique members from the first array, then |
1684 | # check the common elements with the next (uniquely made) one, only keep | |
1685 | # those. Repeat for every array and at the end we only have those left | |
1686 | # which exist in all arrays | |
1687 | my $return_arr = [ $array_unique->(@{$arrays->[0]}) ]; | |
a59544e7 SR |
1688 | for my $i (1 .. $#$arrays) { |
1689 | my %count = (); | |
38586028 | 1690 | # $return_arr is already unique, explicit at before the loop, implicit below. |
4c28a8bc | 1691 | foreach my $element (@$return_arr, $array_unique->(@{$arrays->[$i]})) { |
a59544e7 SR |
1692 | $count{$element}++; |
1693 | } | |
1694 | $return_arr = []; | |
1695 | foreach my $element (keys %count) { | |
1696 | push @$return_arr, $element if $count{$element} > 1; | |
1697 | } | |
26a68cf6 | 1698 | last if scalar(@$return_arr) == 0; # empty intersection, early exit |
a59544e7 SR |
1699 | } |
1700 | ||
1701 | return $return_arr; | |
1702 | } | |
1703 | ||
76c5fee8 WB |
1704 | sub open_tree($$$) { |
1705 | my ($dfd, $pathname, $flags) = @_; | |
1706 | return PVE::Syscall::file_handle_result(syscall( | |
1707 | &PVE::Syscall::open_tree, | |
1708 | $dfd, | |
1709 | $pathname, | |
1710 | $flags, | |
1711 | )); | |
1712 | } | |
1713 | ||
1714 | sub move_mount($$$$$) { | |
1715 | my ($from_dirfd, $from_pathname, $to_dirfd, $to_pathname, $flags) = @_; | |
1716 | return 0 == syscall( | |
1717 | &PVE::Syscall::move_mount, | |
1718 | $from_dirfd, | |
1719 | $from_pathname, | |
1720 | $to_dirfd, | |
1721 | $to_pathname, | |
1722 | $flags, | |
1723 | ); | |
1724 | } | |
1725 | ||
1726 | sub fsopen($$) { | |
1727 | my ($fsname, $flags) = @_; | |
1728 | return PVE::Syscall::file_handle_result(syscall(&PVE::Syscall::fsopen, $fsname, $flags)); | |
1729 | } | |
1730 | ||
1731 | sub fsmount($$$) { | |
1732 | my ($fd, $flags, $mount_attrs) = @_; | |
1733 | return PVE::Syscall::file_handle_result(syscall( | |
1734 | &PVE::Syscall::fsmount, | |
1735 | $fd, | |
1736 | $flags, | |
1737 | $mount_attrs, | |
1738 | )); | |
1739 | } | |
1740 | ||
1741 | sub fspick($$$) { | |
1742 | my ($dirfd, $pathname, $flags) = @_; | |
1743 | return PVE::Syscall::file_handle_result(syscall( | |
1744 | &PVE::Syscall::fspick, | |
1745 | $dirfd, | |
1746 | $pathname, | |
1747 | $flags, | |
1748 | )); | |
1749 | } | |
1750 | ||
1751 | sub fsconfig($$$$$) { | |
1752 | my ($fd, $command, $key, $value, $aux) = @_; | |
1753 | return 0 == syscall(&PVE::Syscall::fsconfig, $fd, $command, $key, $value, $aux); | |
1754 | } | |
1755 | ||
1756 | # "raw" mount, old api, not for generic use (as it does not invoke any helpers). | |
1757 | # use for lower level stuff such as bind/remount/... or simple tmpfs mounts | |
1758 | sub mount($$$$$) { | |
1759 | my ($source, $target, $filesystemtype, $mountflags, $data) = @_; | |
1760 | return 0 == syscall( | |
1761 | &PVE::Syscall::mount, | |
1762 | $source, | |
1763 | $target, | |
1764 | $filesystemtype, | |
1765 | $mountflags, | |
1766 | $data, | |
1767 | ); | |
1768 | } | |
a59544e7 | 1769 | |
890d25d9 FE |
1770 | sub safe_compare { |
1771 | my ($left, $right, $cmp) = @_; | |
1772 | ||
1773 | return 0 if !defined($left) && !defined($right); | |
1774 | return -1 if !defined($left); | |
1775 | return 1 if !defined($right); | |
1776 | return $cmp->($left, $right); | |
1777 | } | |
1778 | ||
e143e9d8 | 1779 | 1; |