support bond_xmit_hash_policy
[pve-common.git] / data / PVE / INotify.pm
1 package PVE::INotify;
2
3 # todo: maybe we do not need update_file() ?
4
5 use strict;
6 use warnings;
7
8 use POSIX;
9 use IO::File;
10 use IO::Dir;
11 use File::stat;
12 use File::Basename;
13 use Fcntl qw(:DEFAULT :flock);
14 use PVE::SafeSyslog;
15 use PVE::Exception qw(raise_param_exc);
16 use PVE::Tools;
17 use Storable qw(dclone);
18 use Linux::Inotify2;
19 use base 'Exporter';
20 use JSON;
21
22 our @EXPORT_OK = qw(read_file write_file register_file);
23
24 my $ccache;
25 my $ccachemap;
26 my $ccacheregex;
27 my $inotify;
28 my $inotify_pid = 0;
29 my $versions;
30 my $shadowfiles = {
31 '/etc/network/interfaces' => '/etc/network/interfaces.new',
32 };
33
34 # to enable cached operation, you need to call 'inotify_init'
35 # inotify handles are a limited resource, so use with care (only
36 # enable the cache if you really need it)
37
38 # Note: please close the inotify handle after you fork
39
40 sub ccache_default_writer {
41 my ($filename, $data) = @_;
42
43 die "undefined config writer for '$filename' :ERROR";
44 }
45
46 sub ccache_default_parser {
47 my ($filename, $srcfd) = @_;
48
49 die "undefined config reader for '$filename' :ERROR";
50 }
51
52 sub ccache_compute_diff {
53 my ($filename, $shadow) = @_;
54
55 my $diff = '';
56
57 open (TMP, "diff -b -N -u '$filename' '$shadow'|");
58
59 while (my $line = <TMP>) {
60 $diff .= $line;
61 }
62
63 close (TMP);
64
65 $diff = undef if !$diff;
66
67 return $diff;
68 }
69
70 sub ccache_info {
71 my ($filename) = @_;
72
73 foreach my $uid (keys %$ccacheregex) {
74 my $ccinfo = $ccacheregex->{$uid};
75 my $dir = $ccinfo->{dir};
76 my $regex = $ccinfo->{regex};
77 if ($filename =~ m|^$dir/+$regex$|) {
78 if (!$ccache->{$filename}) {
79 my $cp = {};
80 while (my ($k, $v) = each %$ccinfo) {
81 $cp->{$k} = $v;
82 }
83 $ccache->{$filename} = $cp;
84 }
85 return ($ccache->{$filename}, $filename);
86 }
87 }
88
89 $filename = $ccachemap->{$filename} if defined ($ccachemap->{$filename});
90
91 die "file '$filename' not added :ERROR" if !defined ($ccache->{$filename});
92
93 return ($ccache->{$filename}, $filename);
94 }
95
96 sub write_file {
97 my ($fileid, $data, $full) = @_;
98
99 my ($ccinfo, $filename) = ccache_info($fileid);
100
101 my $writer = $ccinfo->{writer};
102
103 my $realname = $filename;
104
105 my $shadow;
106 if ($shadow = $shadowfiles->{$filename}) {
107 $realname = $shadow;
108 }
109
110 my $perm = $ccinfo->{perm} || 0644;
111
112 my $tmpname = "$realname.tmp.$$";
113
114 my $res;
115 eval {
116 my $fh = IO::File->new($tmpname, O_WRONLY|O_CREAT, $perm);
117 die "unable to open file '$tmpname' - $!\n" if !$fh;
118
119 $res = &$writer($filename, $fh, $data);
120
121 die "closing file '$tmpname' failed - $!\n" unless close $fh;
122 };
123 my $err = $@;
124
125 $ccinfo->{version} = undef;
126
127 if ($err) {
128 unlink $tmpname;
129 die $err;
130 }
131
132 if (!rename($tmpname, $realname)) {
133 my $msg = "close (rename) atomic file '$filename' failed: $!\n";
134 unlink $tmpname;
135 die $msg;
136 }
137
138 my $diff;
139 if ($shadow && $full) {
140 $diff = ccache_compute_diff ($filename, $shadow);
141 }
142
143 if ($full) {
144 return { data => $res, changes => $diff };
145 }
146
147 return $res;
148 }
149
150 sub update_file {
151 my ($fileid, $data, @args) = @_;
152
153 my ($ccinfo, $filename) = ccache_info($fileid);
154
155 my $update = $ccinfo->{update};
156
157 die "unable to update/merge data" if !$update;
158
159 my $lkfn = "$filename.lock";
160
161 my $timeout = 10;
162
163 my $fd;
164
165 my $code = sub {
166
167 $fd = IO::File->new ($filename, "r");
168
169 my $new = &$update($filename, $fd, $data, @args);
170
171 if (defined($new)) {
172 PVE::Tools::file_set_contents($filename, $new, $ccinfo->{perm});
173 } else {
174 unlink $filename;
175 }
176 };
177
178 PVE::Tools::lock_file($lkfn, $timeout, $code);
179 my $err = $@;
180
181 close($fd) if defined($fd);
182
183 die $err if $err;
184
185 return undef;
186 }
187
188 sub discard_changes {
189 my ($fileid, $full) = @_;
190
191 my ($ccinfo, $filename) = ccache_info($fileid);
192
193 if (my $copy = $shadowfiles->{$filename}) {
194 unlink $copy;
195 }
196
197 return read_file ($filename, $full);
198 }
199
200 sub read_file {
201 my ($fileid, $full) = @_;
202
203 my $parser;
204
205 my ($ccinfo, $filename) = ccache_info($fileid);
206
207 $parser = $ccinfo->{parser};
208
209 my $fd;
210 my $shadow;
211
212 poll() if $inotify; # read new inotify events
213
214 $versions->{$filename} = 0 if !defined ($versions->{$filename});
215
216 my $cver = $versions->{$filename};
217
218 if (my $copy = $shadowfiles->{$filename}) {
219 if ($fd = IO::File->new ($copy, "r")) {
220 $shadow = $copy;
221 } else {
222 $fd = IO::File->new ($filename, "r");
223 }
224 } else {
225 $fd = IO::File->new ($filename, "r");
226 }
227
228 my $acp = $ccinfo->{always_call_parser};
229
230 if (!$fd) {
231 $ccinfo->{version} = undef;
232 $ccinfo->{data} = undef;
233 $ccinfo->{diff} = undef;
234 return undef if !$acp;
235 }
236
237 my $noclone = $ccinfo->{noclone};
238
239 # file unchanged?
240 if (!$ccinfo->{nocache} &&
241 $inotify && $versions->{$filename} &&
242 defined ($ccinfo->{data}) &&
243 defined ($ccinfo->{version}) &&
244 ($ccinfo->{readonce} ||
245 ($ccinfo->{version} == $versions->{$filename}))) {
246
247 my $ret;
248 if (!$noclone && ref ($ccinfo->{data})) {
249 $ret->{data} = dclone ($ccinfo->{data});
250 } else {
251 $ret->{data} = $ccinfo->{data};
252 }
253 $ret->{changes} = $ccinfo->{diff};
254
255 return $full ? $ret : $ret->{data};
256 }
257
258 my $diff;
259
260 if ($shadow) {
261 $diff = ccache_compute_diff ($filename, $shadow);
262 }
263
264 my $res = &$parser($filename, $fd);
265
266 if (!$ccinfo->{nocache}) {
267 $ccinfo->{version} = $cver;
268 }
269
270 # we cache data with references, so we always need to
271 # dclone this data. Else the original data may get
272 # modified.
273 $ccinfo->{data} = $res;
274
275 # also store diff
276 $ccinfo->{diff} = $diff;
277
278 my $ret;
279 if (!$noclone && ref ($ccinfo->{data})) {
280 $ret->{data} = dclone ($ccinfo->{data});
281 } else {
282 $ret->{data} = $ccinfo->{data};
283 }
284 $ret->{changes} = $ccinfo->{diff};
285
286 return $full ? $ret : $ret->{data};
287 }
288
289 sub parse_ccache_options {
290 my ($ccinfo, %options) = @_;
291
292 foreach my $opt (keys %options) {
293 my $v = $options{$opt};
294 if ($opt eq 'readonce') {
295 $ccinfo->{$opt} = $v;
296 } elsif ($opt eq 'nocache') {
297 $ccinfo->{$opt} = $v;
298 } elsif ($opt eq 'shadow') {
299 $ccinfo->{$opt} = $v;
300 } elsif ($opt eq 'perm') {
301 $ccinfo->{$opt} = $v;
302 } elsif ($opt eq 'noclone') {
303 # noclone flag for large read-only data chunks like aplinfo
304 $ccinfo->{$opt} = $v;
305 } elsif ($opt eq 'always_call_parser') {
306 # when set, we call parser even when the file does not exists.
307 # this allows the parser to return some default
308 $ccinfo->{$opt} = $v;
309 } else {
310 die "internal error - unsupported option '$opt'";
311 }
312 }
313 }
314
315 sub register_file {
316 my ($id, $filename, $parser, $writer, $update, %options) = @_;
317
318 die "can't register file after initify_init" if $inotify;
319
320 die "file '$filename' already added :ERROR" if defined ($ccache->{$filename});
321 die "ID '$id' already used :ERROR" if defined ($ccachemap->{$id});
322
323 my $ccinfo = {};
324
325 $ccinfo->{id} = $id;
326 $ccinfo->{parser} = $parser || \&ccache_default_parser;
327 $ccinfo->{writer} = $writer || \&ccache_default_writer;
328 $ccinfo->{update} = $update;
329
330 parse_ccache_options($ccinfo, %options);
331
332 if ($options{shadow}) {
333 $shadowfiles->{$filename} = $options{shadow};
334 }
335
336 $ccachemap->{$id} = $filename;
337 $ccache->{$filename} = $ccinfo;
338 }
339
340 sub register_regex {
341 my ($dir, $regex, $parser, $writer, $update, %options) = @_;
342
343 die "can't register regex after initify_init" if $inotify;
344
345 my $uid = "$dir/$regex";
346 die "regular expression '$uid' already added :ERROR" if defined ($ccacheregex->{$uid});
347
348 my $ccinfo = {};
349
350 $ccinfo->{dir} = $dir;
351 $ccinfo->{regex} = $regex;
352 $ccinfo->{parser} = $parser || \&ccache_default_parser;
353 $ccinfo->{writer} = $writer || \&ccache_default_writer;
354 $ccinfo->{update} = $update;
355
356 parse_ccache_options($ccinfo, %options);
357
358 $ccacheregex->{$uid} = $ccinfo;
359 }
360
361 sub poll {
362 return if !$inotify;
363
364 if ($inotify_pid != $$) {
365 syslog ('err', "got inotify poll request in wrong process - disabling inotify");
366 $inotify = undef;
367 } else {
368 1 while $inotify && $inotify->poll;
369 }
370 }
371
372 sub flushcache {
373 foreach my $filename (keys %$ccache) {
374 $ccache->{$filename}->{version} = undef;
375 $ccache->{$filename}->{data} = undef;
376 $ccache->{$filename}->{diff} = undef;
377 }
378 }
379
380 sub inotify_close {
381 $inotify = undef;
382 }
383
384 sub inotify_init {
385
386 die "only one inotify instance allowed" if $inotify;
387
388 $inotify = Linux::Inotify2->new()
389 || die "Unable to create new inotify object: $!";
390
391 $inotify->blocking (0);
392
393 $versions = {};
394
395 my $dirhash = {};
396 foreach my $fn (keys %$ccache) {
397 my $dir = dirname ($fn);
398 my $base = basename ($fn);
399
400 $dirhash->{$dir}->{$base} = $fn;
401
402 if (my $sf = $shadowfiles->{$fn}) {
403 $base = basename ($sf);
404 $dir = dirname ($sf);
405 $dirhash->{$dir}->{$base} = $fn; # change version of original file!
406 }
407 }
408
409 foreach my $uid (keys %$ccacheregex) {
410 my $ccinfo = $ccacheregex->{$uid};
411 $dirhash->{$ccinfo->{dir}}->{_regex} = 1;
412 }
413
414 $inotify_pid = $$;
415
416 foreach my $dir (keys %$dirhash) {
417
418 my $evlist = IN_MODIFY|IN_ATTRIB|IN_MOVED_FROM|IN_MOVED_TO|IN_DELETE|IN_CREATE;
419 $inotify->watch ($dir, $evlist, sub {
420 my $e = shift;
421 my $name = $e->name;
422
423 if ($inotify_pid != $$) {
424 syslog ('err', "got inotify event in wrong process");
425 }
426
427 if ($e->IN_ISDIR || !$name) {
428 return;
429 }
430
431 if ($e->IN_Q_OVERFLOW) {
432 syslog ('info', "got inotify overflow - flushing cache");
433 flushcache();
434 return;
435 }
436
437 if ($e->IN_UNMOUNT) {
438 syslog ('err', "got 'unmount' event on '$name' - disabling inotify");
439 $inotify = undef;
440 }
441 if ($e->IN_IGNORED) {
442 syslog ('err', "got 'ignored' event on '$name' - disabling inotify");
443 $inotify = undef;
444 }
445
446 if ($dirhash->{$dir}->{_regex}) {
447 foreach my $uid (keys %$ccacheregex) {
448 my $ccinfo = $ccacheregex->{$uid};
449 next if $dir ne $ccinfo->{dir};
450 my $regex = $ccinfo->{regex};
451 if ($regex && ($name =~ m|^$regex$|)) {
452
453 my $fn = "$dir/$name";
454 $versions->{$fn}++;
455 #print "VERSION:$fn:$versions->{$fn}\n";
456 }
457 }
458 } elsif (my $fn = $dirhash->{$dir}->{$name}) {
459
460 $versions->{$fn}++;
461 #print "VERSION:$fn:$versions->{$fn}\n";
462 }
463 });
464 }
465
466 foreach my $dir (keys %$dirhash) {
467 foreach my $name (keys %{$dirhash->{$dir}}) {
468 if ($name eq '_regex') {
469 foreach my $uid (keys %$ccacheregex) {
470 my $ccinfo = $ccacheregex->{$uid};
471 next if $dir ne $ccinfo->{dir};
472 my $re = $ccinfo->{regex};
473 if (my $fd = IO::Dir->new ($dir)) {
474 while (defined(my $de = $fd->read)) {
475 if ($de =~ m/^$re$/) {
476 my $fn = "$dir/$de";
477 $versions->{$fn}++; # init with version
478 #print "init:$fn:$versions->{$fn}\n";
479 }
480 }
481 }
482 }
483 } else {
484 my $fn = $dirhash->{$dir}->{$name};
485 $versions->{$fn}++; # init with version
486 #print "init:$fn:$versions->{$fn}\n";
487 }
488 }
489 }
490 }
491
492 my $cached_nodename;
493
494 sub nodename {
495
496 return $cached_nodename if $cached_nodename;
497
498 my ($sysname, $nodename) = POSIX::uname();
499
500 $nodename =~ s/\..*$//; # strip domain part, if any
501
502 die "unable to read node name\n" if !$nodename;
503
504 $cached_nodename = $nodename;
505
506 return $cached_nodename;
507 }
508
509 sub read_etc_hostname {
510 my ($filename, $fd) = @_;
511
512 my $hostname = <$fd>;
513
514 chomp $hostname;
515
516 $hostname =~ s/\..*$//; # strip domain part, if any
517
518 return $hostname;
519 }
520
521 sub write_etc_hostname {
522 my ($filename, $fh, $hostname) = @_;
523
524 die "write failed: $!" unless print $fh "$hostname\n";
525
526 return $hostname;
527 }
528
529 register_file('hostname', "/etc/hostname",
530 \&read_etc_hostname,
531 \&write_etc_hostname);
532
533 sub read_etc_resolv_conf {
534 my ($filename, $fh) = @_;
535
536 my $res = {};
537
538 my $nscount = 0;
539 while (my $line = <$fh>) {
540 chomp $line;
541 if ($line =~ m/^(search|domain)\s+(\S+)\s*/) {
542 $res->{search} = $2;
543 } elsif ($line =~ m/^nameserver\s+(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})\s*/) {
544 $nscount++;
545 if ($nscount <= 3) {
546 $res->{"dns$nscount"} = $1;
547 }
548 }
549 }
550
551 return $res;
552 }
553
554 sub update_etc_resolv_conf {
555 my ($filename, $fh, $resolv, @args) = @_;
556
557 my $data = "";
558
559 $data = "search $resolv->{search}\n"
560 if $resolv->{search};
561
562 my $written = {};
563 foreach my $k ("dns1", "dns2", "dns3") {
564 my $ns = $resolv->{$k};
565 if ($ns && $ns ne '0.0.0.0' && !$written->{$ns}) {
566 $written->{$ns} = 1;
567 $data .= "nameserver $ns\n";
568 }
569 }
570
571 while (my $line = <$fh>) {
572 next if $line =~ m/^(search|domain|nameserver)\s+/;
573 $data .= $line
574 }
575
576 return $data;
577 }
578
579 register_file('resolvconf', "/etc/resolv.conf",
580 \&read_etc_resolv_conf, undef,
581 \&update_etc_resolv_conf);
582
583 sub read_etc_timezone {
584 my ($filename, $fd) = @_;
585
586 my $timezone = <$fd>;
587
588 chomp $timezone;
589
590 return $timezone;
591 }
592
593 sub write_etc_timezone {
594 my ($filename, $fh, $timezone) = @_;
595
596 my $tzinfo = "/usr/share/zoneinfo/$timezone";
597
598 raise_param_exc({ 'timezone' => "No such timezone" })
599 if (! -f $tzinfo);
600
601 ($timezone) = $timezone =~ m/^(.*)$/; # untaint
602
603 print $fh "$timezone\n";
604
605 unlink ("/etc/localtime");
606 symlink ("/usr/share/zoneinfo/$timezone", "/etc/localtime");
607
608 }
609
610 register_file('timezone', "/etc/timezone",
611 \&read_etc_timezone,
612 \&write_etc_timezone);
613
614 sub read_active_workers {
615 my ($filename, $fh) = @_;
616
617 return [] if !$fh;
618
619 my $res = [];
620 while (defined (my $line = <$fh>)) {
621 if ($line =~ m/^(\S+)\s(0|1)(\s([0-9A-Za-z]{8})(\s(\s*\S.*))?)?$/) {
622 my $upid = $1;
623 my $saved = $2;
624 my $endtime = $4;
625 my $status = $6;
626 if ((my $task = PVE::Tools::upid_decode($upid, 1))) {
627 $task->{upid} = $upid;
628 $task->{saved} = $saved;
629 $task->{endtime} = hex($endtime) if $endtime;
630 $task->{status} = $status if $status;
631 push @$res, $task;
632 }
633 } else {
634 warn "unable to parse line: $line";
635 }
636 }
637
638 return $res;
639
640 }
641
642 sub write_active_workers {
643 my ($filename, $fh, $tasklist) = @_;
644
645 my $raw = '';
646 foreach my $task (@$tasklist) {
647 my $upid = $task->{upid};
648 my $saved = $task->{saved} ? 1 : 0;
649 if ($task->{endtime}) {
650 if ($task->{status}) {
651 $raw .= sprintf("$upid $saved %08X $task->{status}\n", $task->{endtime});
652 } else {
653 $raw .= sprintf("$upid $saved %08X\n", $task->{endtime});
654 }
655 } else {
656 $raw .= "$upid $saved\n";
657 }
658 }
659
660 PVE::Tools::safe_print($filename, $fh, $raw) if $raw;
661 }
662
663 register_file('active', "/var/log/pve/tasks/active",
664 \&read_active_workers,
665 \&write_active_workers);
666
667
668 my $bond_modes = { 'balance-rr' => 0,
669 'active-backup' => 1,
670 'balance-xor' => 2,
671 'broadcast' => 3,
672 '802.3ad' => 4,
673 'balance-tlb' => 5,
674 'balance-alb' => 6,
675 };
676
677 my $ovs_bond_modes = {
678 'active-backup' => 1,
679 'balance-slb' => 1,
680 'lacp-balance-slb' => 1,
681 'lacp-balance-tcp' => 1,
682 };
683
684 #sub get_bond_modes {
685 # return $bond_modes;
686 #}
687
688 my $parse_ovs_option = sub {
689 my ($data) = @_;
690
691 my $opts = {};
692 foreach my $kv (split (/\s+/, $data || '')) {
693 my ($k, $v) = split('=', $kv, 2);
694 $opts->{$k} = $v if $k && $v;
695 }
696 return $opts;
697 };
698
699 my $set_ovs_option = sub {
700 my ($d, %params) = @_;
701
702 my $opts = &$parse_ovs_option($d->{ovs_options});
703
704 foreach my $k (keys %params) {
705 my $v = $params{$k};
706 if ($v) {
707 $opts->{$k} = $v;
708 } else {
709 delete $opts->{$k};
710 }
711 }
712
713 my $res = [];
714 foreach my $k (keys %$opts) {
715 push @$res, "$k=$opts->{$k}";
716 }
717
718 if (my $new = join(' ', @$res)) {
719 $d->{ovs_options} = $new;
720 return $d->{ovs_options};
721 } else {
722 delete $d->{ovs_options};
723 return undef;
724 }
725 };
726
727 my $extract_ovs_option = sub {
728 my ($d, $name) = @_;
729
730 my $opts = &$parse_ovs_option($d->{ovs_options});
731
732 my $v = delete $opts->{$name};
733
734 my $res = [];
735 foreach my $k (keys %$opts) {
736 push @$res, "$k=$opts->{$k}";
737 }
738
739 if (my $new = join(' ', @$res)) {
740 $d->{ovs_options} = $new;
741 } else {
742 delete $d->{ovs_options};
743 }
744
745 return $v;
746 };
747
748 sub read_etc_network_interfaces {
749 my ($filename, $fh) = @_;
750
751 my $ifaces = {};
752
753 my $line;
754
755 if (my $fd2 = IO::File->new("/proc/net/dev", "r")) {
756 while (defined ($line = <$fd2>)) {
757 if ($line =~ m/^\s*(eth\d+):.*/) {
758 $ifaces->{$1}->{exists} = 1;
759 }
760 }
761 close($fd2);
762 }
763
764 # we try to keep order inside the file
765 my $priority = 2; # 1 is reserved for lo
766
767 # always add the vmbr0 bridge device
768 $ifaces->{vmbr0}->{exists} = 1;
769
770 my $gateway = 0;
771
772 while (defined ($line = <$fh>)) {
773 chomp ($line);
774 next if $line =~ m/^#/;
775
776 if ($line =~ m/^auto\s+(.*)$/) {
777 my @aa = split (/\s+/, $1);
778
779 foreach my $a (@aa) {
780 $ifaces->{$a}->{autostart} = 1;
781 }
782
783 } elsif ($line =~ m/^iface\s+(\S+)\s+inet\s+(\S+)\s*$/) {
784 my $i = $1;
785 $ifaces->{$i}->{method} = $2;
786 $ifaces->{$i}->{priority} = $priority++;
787
788 my $d = $ifaces->{$i};
789 while (defined ($line = <$fh>)) {
790 if ($line =~ m/^\s*#(.*)\s*$/) {
791 # NOTE: we use 'comments' instead of 'comment' to
792 # avoid automatic utf8 conversion
793 $d->{comments} = '' if !$d->{comments};
794 $d->{comments} .= "$1\n";
795 } elsif ($line =~ m/^\s+((\S+)\s+(.+))$/) {
796 my $option = $1;
797 my ($id, $value) = ($2, $3);
798 if (($id eq 'address') || ($id eq 'netmask') || ($id eq 'broadcast')) {
799 $d->{$id} = $value;
800 } elsif ($id eq 'gateway') {
801 $d->{$id} = $value;
802 $gateway = 1;
803 } elsif ($id eq 'ovs_type' || $id eq 'ovs_options'|| $id eq 'ovs_bridge' ||
804 $id eq 'ovs_bonds' || $id eq 'ovs_ports') {
805 $d->{$id} = $value;
806 } elsif ($id eq 'slaves' || $id eq 'bridge_ports') {
807 my $devs = {};
808 foreach my $p (split (/\s+/, $value)) {
809 next if $p eq 'none';
810 $devs->{$p} = 1;
811 }
812 my $str = join (' ', sort keys %{$devs});
813 $d->{$id} = $str || '';
814 } elsif ($id eq 'bridge_stp') {
815 if ($value =~ m/^\s*(on|yes)\s*$/i) {
816 $d->{$id} = 'on';
817 } else {
818 $d->{$id} = 'off';
819 }
820 } elsif ($id eq 'bridge_fd') {
821 $d->{$id} = $value;
822 } elsif ($id eq 'bond_miimon') {
823 $d->{$id} = $value;
824 } elsif ($id eq 'bond_xmit_hash_policy') {
825 $d->{$id} = $value;
826 } elsif ($id eq 'bond_mode') {
827 # always use names
828 foreach my $bm (keys %$bond_modes) {
829 my $id = $bond_modes->{$bm};
830 if ($id eq $value) {
831 $value = $bm;
832 last;
833 }
834 }
835 $d->{$id} = $value;
836 } else {
837 push @{$d->{options}}, $option;
838 }
839 } else {
840 last;
841 }
842 }
843 }
844 }
845
846
847 if (!$gateway) {
848 $ifaces->{vmbr0}->{gateway} = '';
849 }
850
851 if (!$ifaces->{lo}) {
852 $ifaces->{lo}->{priority} = 1;
853 $ifaces->{lo}->{method} = 'loopback';
854 $ifaces->{lo}->{type} = 'loopback';
855 $ifaces->{lo}->{autostart} = 1;
856 }
857
858 foreach my $iface (keys %$ifaces) {
859 my $d = $ifaces->{$iface};
860 if ($iface =~ m/^bond\d+$/) {
861 if (!$d->{ovs_type}) {
862 $d->{type} = 'bond';
863 } elsif ($d->{ovs_type} eq 'OVSBond') {
864 $d->{type} = $d->{ovs_type};
865 # translate: ovs_options => bond_mode
866 $d->{'bond_mode'} = &$extract_ovs_option($d, 'bond_mode');
867 my $lacp = &$extract_ovs_option($d, 'lacp');
868 if ($lacp && $lacp eq 'active') {
869 if ($d->{'bond_mode'} eq 'balance-slb') {
870 $d->{'bond_mode'} = 'lacp-balance-slb';
871 }
872 }
873 # Note: balance-tcp needs lacp
874 if ($d->{'bond_mode'} eq 'balance-tcp') {
875 $d->{'bond_mode'} = 'lacp-balance-tcp';
876 }
877 } else {
878 $d->{type} = 'unknown';
879 }
880 } elsif ($iface =~ m/^vmbr\d+$/) {
881 if (!$d->{ovs_type}) {
882 $d->{type} = 'bridge';
883
884 if (!defined ($d->{bridge_fd})) {
885 $d->{bridge_fd} = 0;
886 }
887 if (!defined ($d->{bridge_stp})) {
888 $d->{bridge_stp} = 'off';
889 }
890 } elsif ($d->{ovs_type} eq 'OVSBridge') {
891 $d->{type} = $d->{ovs_type};
892 } else {
893 $d->{type} = 'unknown';
894 }
895 } elsif ($iface =~ m/^(\S+):\d+$/) {
896 $d->{type} = 'alias';
897 if (defined ($ifaces->{$1})) {
898 $d->{exists} = $ifaces->{$1}->{exists};
899 } else {
900 $ifaces->{$1}->{exists} = 0;
901 $d->{exists} = 0;
902 }
903 } elsif ($iface =~ m/^eth\d+$/) {
904 if (!$d->{ovs_type}) {
905 $d->{type} = 'eth';
906 } elsif ($d->{ovs_type} eq 'OVSPort') {
907 $d->{type} = $d->{ovs_type};
908 } else {
909 $d->{type} = 'unknown';
910 }
911 } elsif ($iface =~ m/^lo$/) {
912 $d->{type} = 'loopback';
913 } else {
914 if (!$d->{ovs_type}) {
915 $d->{type} = 'unknown';
916 } elsif ($d->{ovs_type} eq 'OVSIntPort') {
917 $d->{type} = $d->{ovs_type};
918 }
919 }
920
921 $d->{method} = 'manual' if !$d->{method};
922 }
923
924 if (my $fd2 = IO::File->new("/proc/net/if_inet6", "r")) {
925 while (defined ($line = <$fd2>)) {
926 if ($line =~ m/^[a-f0-9]{32}\s+[a-f0-9]{2}\s+[a-f0-9]{2}\s+[a-f0-9]{2}\s+[a-f0-9]{2}\s+(\S+)$/) {
927 $ifaces->{$1}->{active} = 1 if defined($ifaces->{$1});
928 }
929 }
930 close ($fd2);
931 }
932
933 return $ifaces;
934 }
935
936 sub __interface_to_string {
937 my ($iface, $d) = @_;
938
939 return '' if !($d && $d->{method});
940
941 my $raw = '';
942
943 $raw .= "iface $iface inet $d->{method}\n";
944 $raw .= "\taddress $d->{address}\n" if $d->{address};
945 $raw .= "\tnetmask $d->{netmask}\n" if $d->{netmask};
946 $raw .= "\tgateway $d->{gateway}\n" if $d->{gateway};
947 $raw .= "\tbroadcast $d->{broadcast}\n" if $d->{broadcast};
948
949 my $done = { type => 1, priority => 1, method => 1, active => 1, exists => 1,
950 comments => 1, autostart => 1, options => 1,
951 address => 1, netmask => 1, gateway => 1, broadcast => 1 };
952
953 if ($d->{type} eq 'bridge') {
954
955 my $ports = $d->{bridge_ports} || 'none';
956 $raw .= "\tbridge_ports $ports\n";
957 $done->{bridge_ports} = 1;
958
959 my $v = defined($d->{bridge_stp}) ? $d->{bridge_stp} : 'off';
960 $raw .= "\tbridge_stp $v\n";
961 $done->{bridge_stp} = 1;
962
963 $v = defined($d->{bridge_fd}) ? $d->{bridge_fd} : 0;
964 $raw .= "\tbridge_fd $v\n";
965 $done->{bridge_fd} = 1;
966
967 } elsif ($d->{type} eq 'bond') {
968
969 my $slaves = $d->{slaves} || 'none';
970 $raw .= "\tslaves $slaves\n";
971 $done->{slaves} = 1;
972
973 my $v = defined ($d->{'bond_miimon'}) ? $d->{'bond_miimon'} : 100;
974 $raw .= "\tbond_miimon $v\n";
975 $done->{'bond_miimon'} = 1;
976
977 $v = defined ($d->{'bond_mode'}) ? $d->{'bond_mode'} : 'balance-rr';
978 $raw .= "\tbond_mode $v\n";
979 $done->{'bond_mode'} = 1;
980
981 if ($d->{'bond_mode'} && $d->{'bond_xmit_hash_policy'} &&
982 ($d->{'bond_mode'} eq 'balance-xor' || $d->{'bond_mode'} eq '802.3ad')) {
983 $raw .= "\tbond_xmit_hash_policy $d->{'bond_xmit_hash_policy'}\n";
984 }
985 $done->{'bond_xmit_hash_policy'} = 1;
986
987 } elsif ($d->{type} eq 'OVSBridge') {
988
989 $raw .= "\tovs_type $d->{type}\n";
990 $done->{ovs_type} = 1;
991
992 $raw .= "\tovs_ports $d->{ovs_ports}\n" if $d->{ovs_ports};
993 $done->{ovs_ports} = 1;
994
995 } elsif ($d->{type} eq 'OVSPort' || $d->{type} eq 'OVSIntPort' ||
996 $d->{type} eq 'OVSBond') {
997
998 $d->{autostart} = 0; # started by the bridge
999
1000 if ($d->{type} eq 'OVSBond') {
1001
1002 $d->{bond_mode} = 'active-backup' if !$d->{bond_mode};
1003
1004 $ovs_bond_modes->{$d->{bond_mode}} ||
1005 die "OVS does not support bond mode '$d->{bond_mode}\n";
1006
1007 if ($d->{bond_mode} eq 'lacp-balance-slb') {
1008 &$set_ovs_option($d, lacp => 'active');
1009 &$set_ovs_option($d, bond_mode => 'balance-slb');
1010 } elsif ($d->{bond_mode} eq 'lacp-balance-tcp') {
1011 &$set_ovs_option($d, lacp => 'active');
1012 &$set_ovs_option($d, bond_mode => 'balance-tcp');
1013 } else {
1014 &$set_ovs_option($d, lacp => undef);
1015 &$set_ovs_option($d, bond_mode => $d->{bond_mode});
1016 }
1017 $done->{bond_mode} = 1;
1018
1019 $raw .= "\tovs_bonds $d->{ovs_bonds}\n" if $d->{ovs_bonds};
1020 $done->{ovs_bonds} = 1;
1021 }
1022
1023 if ($d->{ovs_bridge}) {
1024 $raw = "allow-$d->{ovs_bridge} $iface\n$raw";
1025 }
1026
1027 $raw .= "\tovs_type $d->{type}\n";
1028 $done->{ovs_type} = 1;
1029
1030 if ($d->{ovs_bridge}) {
1031 $raw .= "\tovs_bridge $d->{ovs_bridge}\n";
1032 $done->{ovs_bridge} = 1;
1033 }
1034 # fixme: use Data::Dumper; print Dumper($d);
1035 }
1036
1037 # print other settings
1038 foreach my $k (keys %$d) {
1039 next if $done->{$k};
1040 next if !$d->{$k};
1041 $raw .= "\t$k $d->{$k}\n";
1042 }
1043
1044 foreach my $option (@{$d->{options}}) {
1045 $raw .= "\t$option\n";
1046 }
1047
1048 # add comments
1049 my $comments = $d->{comments} || '';
1050 foreach my $cl (split(/\n/, $comments)) {
1051 $raw .= "#$cl\n";
1052 }
1053
1054 if ($d->{autostart}) {
1055 $raw = "auto $iface\n$raw";
1056 }
1057
1058 $raw .= "\n";
1059
1060 return $raw;
1061 }
1062
1063 sub write_etc_network_interfaces {
1064 my ($filename, $fh, $ifaces) = @_;
1065
1066 my $used_ports = {};
1067
1068 foreach my $iface (keys %$ifaces) {
1069 my $d = $ifaces->{$iface};
1070
1071 my $ports = '';
1072 foreach my $k (qw(bridge_ports ovs_ports slaves ovs_bonds)) {
1073 $ports .= " $d->{$k}" if $d->{$k};
1074 }
1075
1076 foreach my $p (PVE::Tools::split_list($ports)) {
1077 die "port '$p' is already used on interface '$used_ports->{$p}'\n"
1078 if $used_ports->{$p} && $used_ports->{$p} ne $iface;
1079 $used_ports->{$p} = $iface;
1080 }
1081 }
1082
1083 # delete unused OVS ports
1084 foreach my $iface (keys %$ifaces) {
1085 my $d = $ifaces->{$iface};
1086 if ($d->{type} eq 'OVSPort' || $d->{type} eq 'OVSIntPort' ||
1087 $d->{type} eq 'OVSBond') {
1088 my $brname = $used_ports->{$iface};
1089 if (!$brname || !$ifaces->{$brname}) {
1090 delete $ifaces->{$iface};
1091 next;
1092 }
1093 my $bd = $ifaces->{$brname};
1094 if ($bd->{type} ne 'OVSBridge') {
1095 delete $ifaces->{$iface};
1096 next;
1097 }
1098 }
1099 }
1100
1101 # create OVS bridge ports
1102 foreach my $iface (keys %$ifaces) {
1103 my $d = $ifaces->{$iface};
1104 if ($d->{type} eq 'OVSBridge' && $d->{ovs_ports}) {
1105 foreach my $p (split (/\s+/, $d->{ovs_ports})) {
1106 my $n = $ifaces->{$p};
1107 die "OVS bridge '$iface' - unable to find port '$p'\n"
1108 if !$n;
1109 if ($n->{type} eq 'eth') {
1110 $n->{type} = 'OVSPort';
1111 $n->{ovs_bridge} = $iface;
1112 } elsif ($n->{type} eq 'OVSBond' || $n->{type} eq 'OVSPort' ||
1113 $n->{type} eq 'OVSIntPort') {
1114 $n->{ovs_bridge} = $iface;
1115 } else {
1116 die "interface '$p' is not defined as OVS port/bond\n";
1117 }
1118 }
1119 }
1120 }
1121
1122 # check OVS bond ports
1123 foreach my $iface (keys %$ifaces) {
1124 my $d = $ifaces->{$iface};
1125 if ($d->{type} eq 'OVSBond' && $d->{ovs_bonds}) {
1126 foreach my $p (split (/\s+/, $d->{ovs_bonds})) {
1127 my $n = $ifaces->{$p};
1128 die "OVS bond '$iface' - unable to find slave '$p'\n"
1129 if !$n;
1130 die "OVS bond '$iface' - wrong interface type on slave '$p' " .
1131 "('$n->{type}' != 'eth')\n" if $n->{type} ne 'eth';
1132 }
1133 }
1134 }
1135
1136 my $raw = "# network interface settings\n";
1137
1138 my $printed = {};
1139
1140 my $if_type_hash = {
1141 unknown => 0,
1142 loopback => 10,
1143 eth => 20,
1144 bond => 30,
1145 bridge => 40,
1146 };
1147
1148 my $lookup_type_prio = sub {
1149 my $iface = shift;
1150
1151 my $alias = 0;
1152 if ($iface =~ m/^(\S+):\d+$/) {
1153 $iface = $1;
1154 $alias = 1;
1155 }
1156
1157 my $pri;
1158 if ($iface eq 'lo') {
1159 $pri = $if_type_hash->{loopback};
1160 } elsif ($iface =~ m/^eth\d+$/) {
1161 $pri = $if_type_hash->{eth} + $alias;
1162 } elsif ($iface =~ m/^bond\d+$/) {
1163 $pri = $if_type_hash->{bond} + $alias;
1164 } elsif ($iface =~ m/^vmbr\d+$/) {
1165 $pri = $if_type_hash->{bridge} + $alias;
1166 }
1167
1168 return $pri || ($if_type_hash->{unknown} + $alias);
1169 };
1170
1171 foreach my $iface (sort {
1172 my $ref1 = $ifaces->{$a};
1173 my $ref2 = $ifaces->{$b};
1174 my $p1 = &$lookup_type_prio($a);
1175 my $p2 = &$lookup_type_prio($b);
1176
1177 return $p1 <=> $p2 if $p1 != $p2;
1178
1179 $p1 = $ref1->{priority} || 100000;
1180 $p2 = $ref2->{priority} || 100000;
1181
1182 return $p1 <=> $p2 if $p1 != $p2;
1183
1184 return $a cmp $b;
1185 } keys %$ifaces) {
1186
1187 my $d = $ifaces->{$iface};
1188
1189 next if $printed->{$iface};
1190
1191 $printed->{$iface} = 1;
1192 $raw .= __interface_to_string($iface, $d);
1193 }
1194
1195 PVE::Tools::safe_print($filename, $fh, $raw);
1196 }
1197
1198 register_file('interfaces', "/etc/network/interfaces",
1199 \&read_etc_network_interfaces,
1200 \&write_etc_network_interfaces);
1201
1202
1203 sub read_iscsi_initiatorname {
1204 my ($filename, $fd) = @_;
1205
1206 while (defined(my $line = <$fd>)) {
1207 if ($line =~ m/^InitiatorName=(\S+)$/) {
1208 return $1;
1209 }
1210 }
1211
1212 return 'undefined';
1213 }
1214
1215 register_file('initiatorname', "/etc/iscsi/initiatorname.iscsi",
1216 \&read_iscsi_initiatorname);
1217
1218 sub read_apt_auth {
1219 my ($filename, $fd) = @_;
1220
1221 local $/;
1222
1223 my $raw = defined($fd) ? <$fd> : '';
1224
1225 $raw =~ s/^\s+//;
1226
1227
1228 my @tokens = split(/\s+/, $raw);
1229
1230 my $data = {};
1231
1232 my $machine;
1233 while (defined(my $tok = shift @tokens)) {
1234
1235 $machine = shift @tokens if $tok eq 'machine';
1236 next if !$machine;
1237 $data->{$machine} = {} if !$data->{$machine};
1238
1239 $data->{$machine}->{login} = shift @tokens if $tok eq 'login';
1240 $data->{$machine}->{password} = shift @tokens if $tok eq 'password';
1241 };
1242
1243 return $data;
1244 }
1245
1246 my $format_apt_auth_data = sub {
1247 my $data = shift;
1248
1249 my $raw = '';
1250
1251 foreach my $machine (sort keys %$data) {
1252 my $d = $data->{$machine};
1253 $raw .= "machine $machine\n";
1254 $raw .= " login $d->{login}\n" if $d->{login};
1255 $raw .= " password $d->{password}\n" if $d->{password};
1256 $raw .= "\n";
1257 }
1258
1259 return $raw;
1260 };
1261
1262 sub write_apt_auth {
1263 my ($filename, $fh, $data) = @_;
1264
1265 my $raw = &$format_apt_auth_data($data);
1266
1267 die "write failed: $!" unless print $fh "$raw\n";
1268
1269 return $data;
1270 }
1271
1272 sub update_apt_auth {
1273 my ($filename, $fh, $data) = @_;
1274
1275 my $orig = read_apt_auth($filename, $fh);
1276
1277 foreach my $machine (keys %$data) {
1278 $orig->{$machine} = $data->{$machine};
1279 }
1280
1281 return &$format_apt_auth_data($orig);
1282 }
1283
1284 register_file('apt-auth', "/etc/apt/auth.conf",
1285 \&read_apt_auth, \&write_apt_auth,
1286 \&update_apt_auth, perm => 0640);
1287
1288 1;