4 # This code is issued under the GNU General Public License.
5 # See the file COPYING in this distribution
7 # Copyright (C) 1998, Stelias Computing
9 # Modified for InterMezzo from Gordian's HSM bcache device/jcm module
10 # Copyright (C) 1999, Carnegie Mellon University
12 # Derived from InterMezzo's incontrol, modified for OBD's
13 # Copyright (C) 1999, Stelias Computing
18 BEGIN { require "asm/errno.ph" };
19 BEGIN { require "asm/ioctl.ph" };
21 # p2ph generated invalid macros for ioctl stuff, so I override some of it here
22 eval 'sub OBD_IOC_CREATE () { &_IOC(2, ord(\'f\'), 3, 4);}' unless
23 defined(&OBD_IOC_CREATE);
24 eval 'sub OBD_IOC_SETUP () { &_IOC(1, ord(\'f\'), 4, 4);}' unless
25 defined(&OBD_IOC_SETUP);
26 eval 'sub OBD_IOC_CLEANUP () { &_IOC(0, ord(\'f\'), 5, 0);}' unless
27 defined(&OBD_IOC_CLEANUP);
28 eval 'sub OBD_IOC_DESTROY () { &_IOC(1, ord(\'f\'), 6, 4);}' unless
29 defined(&OBD_IOC_DESTROY);
30 eval 'sub OBD_IOC_PREALLOCATE () { &_IOC(3, ord(\'f\'), 7, 4);}' unless
31 defined(&OBD_IOC_PREALLOCATE);
32 eval 'sub OBD_IOC_DEC_USE_COUNT () { &_IOC(0, ord(\'f\'), 8, 0);}' unless
33 defined(&OBD_IOC_DEC_USE_COUNT);
34 eval 'sub OBD_IOC_SETATTR () { &_IOC(1, ord(\'f\'), 9, 4);}' unless
35 defined(&OBD_IOC_SETATTR);
36 eval 'sub OBD_IOC_GETATTR () { &_IOC(2, ord(\'f\'), 10, 4);}' unless
37 defined(&OBD_IOC_GETATTR);
38 eval 'sub OBD_IOC_READ () { &_IOC(3, ord(\'f\'), 11, 4);}' unless
39 defined(&OBD_IOC_READ);
40 eval 'sub OBD_IOC_WRITE () { &_IOC(3, ord(\'f\'), 12, 4);}' unless
41 defined(&OBD_IOC_WRITE);
42 eval 'sub OBD_IOC_CONNECT () { &_IOC(2, ord(\'f\'), 13, 4);}' unless
43 defined(&OBD_IOC_CONNECT);
44 eval 'sub OBD_IOC_DISCONNECT () { &_IOC(1, ord(\'f\'), 14, 4);}' unless
45 defined(&OBD_IOC_DISCONNECT);
46 eval 'sub OBD_IOC_STATFS () { &_IOC(3, ord(\'f\'), 15, 4);}' unless
47 defined(&OBD_IOC_STATFS);
48 eval 'sub OBD_IOC_SYNC () { &_IOC(2, ord(\'f\'), 16, 4);}' unless
49 defined(&OBD_IOC_SYNC);
50 eval 'sub OBD_IOC_READ2 () { &_IOC(3, ord(\'f\'), 17, 4);}' unless
51 defined(&OBD_IOC_READ2);
52 eval 'sub OBD_IOC_FORMATOBD () { &_IOC(3, ord(\'f\'), 18, 4);}' unless
53 defined(&OBD_IOC_FORMATOBD);
54 eval 'sub OBD_IOC_PARTITION () { &_IOC(3, ord(\'f\'), 19, 4);}' unless
55 defined(&OBD_IOC_PARTITION);
56 eval 'sub OBD_IOC_ATTACH () { &_IOC(3, ord(\'f\'), 20, 4);}' unless
57 defined(&OBD_IOC_ATTACH);
58 eval 'sub OBD_IOC_DETACH () { &_IOC(3, ord(\'f\'), 21, 4);}' unless
59 defined(&OBD_IOC_DETACH);
60 eval 'sub OBD_IOC_COPY () { &_IOC(3, ord(\'f\'), 22, 4);}' unless
61 defined(&OBD_IOC_COPY);
62 eval 'sub OBD_IOC_MIGR () { &_IOC(3, ord(\'f\'), 23, 4);}' unless
63 defined(&OBD_IOC_MIGR);
64 eval 'sub OBD_SNAP_SETTABLE () { &_IOC(3, ord(\'f\'), 40, 4);}' unless
65 defined(&OBD_SNAP_SETTABLE);
66 eval 'sub OBD_SNAP_PRINTTABLE () { &_IOC(3, ord(\'f\'), 41, 4);}' unless
67 defined(&OBD_SNAP_PRINTTABLE);
68 eval 'sub OBD_SNAP_DELETE() { &_IOC(3, ord(\'f\'), 42, 4);}' unless
69 defined(&OBD_SNAP_DELETE);
70 eval 'sub OBD_SNAP_RESTORE() { &_IOC(3, ord(\'f\'), 43, 4);}' unless
71 defined(&OBD_SNAP_RESTORE);
73 eval 'sub OBD_EXT2_RUNIT () { &_IOC(3, ord(\'f\'), 61, 4);}' unless
74 defined(&OBD_EXT2_RUNIT);
76 eval 'sub OBD_MD_FLALL () {~0;}' unless defined(&OBD_MD_FLALL);
77 eval 'sub OBD_MD_FLATIME () {1<<1;}' unless defined(&OBD_MD_FLATIME);
78 eval 'sub OBD_MD_FLMTIME () {1<<2;}' unless defined(&OBD_MD_FLMTIME);
79 eval 'sub OBD_MD_FLCTIME () {1<<3;}' unless defined(&OBD_MD_FLCTIME);
80 eval 'sub OBD_MD_FLSIZE () {1<<4;}' unless defined(&OBD_MD_FLSIZE);
81 eval 'sub OBD_MD_FLMODE () {1<<7;}' unless defined(&OBD_MD_FLMODE);
82 eval 'sub OBD_MD_FLUID () {1<<8;}' unless defined(&OBD_MD_FLUID);
83 eval 'sub OBD_MD_FLGID () {1<<9;}' unless defined(&OBD_MD_FLGID);
93 # NOTE long long are layed out in ia32 memory as follows:
94 # u = 0xaaaabbbbccccdddd has ccccdddd at &u and aaaabbbb 4 bytes on
95 # this may be different on other architectures
97 # we use 32-bit integers for all 64-bit quantities in this program
98 # #define OBD_INLINESZ 64
99 # #define OBD_OBDMDSZ 64
100 # /* Note: 64-bit types are 64-bit aligned in structure */
108 # obd_blocks o_blocks;
109 # obd_blksize o_blksize;
114 # obd_flag o_obdflags;
116 # obd_flag o_valid; /* hot fields in this obdo */
117 # char o_inline[OBD_INLINESZ];
118 # char o_obdmd[OBD_OBDMDSZ];
119 # struct list_head o_list;
120 # struct obd_ops *o_op;
125 pack "LL LL LL LL LL LL LL L L L L L L L L a60 a64 L L L",
143 0, 0, # struct list_head
167 $obdo->{obdmd}) = unpack "x${offset}Lx4 Lx4 Lx4 Lx4 Lx4 Lx4 Lx4 L L L L L L L L a60 a64", $buf;
175 printf "id: %d\ngrp: %d\natime: %s\nmtime: %s\nctime: %s\nsize: %d\nblocks: %d\nblksize: %d\nmode: %o\nuid: %d\ngid: %d\nflags: %x\nobdflags: %x\nnlink: %d\nvalid: %x\ninline: %s\nobdmd: %s\n",
198 GetOptions("f!" => \$file, "device=s" => \$::device, ) || die "Getoptions";
201 # get a console for the app
208 ('device' => {func => "Device", doc => "device <dev>: open another OBD device"},
209 'create' => {func => "Create", doc => "create: creates a new inode"},
210 'attach' => {func => "Attach", doc => "attach { ext2_obd | snap_obd snapdev snapidx tableno | scsi_obd adapter bus tid lun }" },
211 'detach' => {func => "Detach", doc => "detach this device"},
212 'testext2iterator' => {func => "TestExt2Iterator", doc => "test ext2 iterator function"},
213 'snapset' => {func => "SnapSetTable", doc => "snapset <tableno> <file>: set the table (created with snaptable) as table #tableno" },
214 'snapprint' => {func => "SnapPrint", doc => "snapprint <tableno>: output the contents of table #tableno to the syslog"},
215 'snapdelete' => {func => "SnapDelete", doc => "snapdelete: delete connected snap obd objects from disk"},
216 'snaprestore' => {func => "SnapRestore", doc => "snaprestore : restore connected old snap objects to be current"},
217 'snaptable' => {func => "SnapShotTable", doc => "snaptable: build a snapshot table (interactive)"},
218 'copy' => {func => "Copy", doc => "copy <srcid> <tgtid>: copy objects"},
219 'migrate' => {func => "Migrate", doc => "migrate <srcid> <tgtid>: migrate data from one object to another"},
220 'format' => {func => "Format", doc => "format type adapter bus tid lun size"},
221 'partition' => {func => "Partition", doc => "partition type adapter bus tid lun partition size"},
222 'setup' => {func => "Setup", doc => "setup [type]: link this OBD device to the underlying device (default type ext2_obd)"},
223 'connect' => {func => "Connect", doc => "connect: allocates client ID for this session"},
224 'disconnect' => {func => "Disconnect", doc => "disconnect [id]: frees client resources"},
225 'sync' => {func => "Sync", doc => "sync: flushes buffers to disk"},
226 'destroy' => {func => "Destroy", doc => "destroy <inode>: destroys an inode"},
227 'cleanup' => {func => "Cleanup", doc => "cleanup the minor obd device"},
228 'dec_use_count' => {func => "Decusecount", doc => "decreases the module use count so that the module can be removed following an oops"},
229 'read' => {func => "Read", doc => "read <inode> <count> [offset]"},
230 'fsread' => {func => "Read2", doc => "read <inode> <count> [offset]"},
231 'write' => {func => "Write", doc => "write <inode> <offset> <text>"},
232 'setattr' => {func => "Setattr", doc => "setattr <inode> [mode [uid [gid [size [atime [mtime [ctime]]]]]]]"},
233 'getattr' => {func => "Getattr", doc => "getattr <inode>: displays inode object attributes"},
234 'preallocate' => {func => "Preallocate", doc => "preallocate [num]: requests preallocation of num inodes."},
235 'statfs' => {func => "Statfs", doc => "statfs: filesystem status information"},
236 'help' => {func => \&Help, doc => "help: this message"},
237 'quit' => {func => \&Quit, doc => "see \"exit\""},
238 'exit' => {func => \&Quit, doc => "see \"quit\""}
242 # setup completion function
244 my @jcm_cmd_list = keys %commands;
259 return $term->readline(@_);
272 $term = new Term::ReadLine 'obdcontrol ';
273 $attribs = $term->Attribs;
274 $attribs->{attempted_completion_function} = \&completeme;
275 $term->ornaments('md,me,,'); # bold face prompt
277 # make sure stdout is not buffered
278 STDOUT->autoflush(1);
281 # Get on with the show
285 #------------------------------------------------------------------------------
287 my ($text, $line, $start, $end) = @_;
288 if (substr($line, 0, $start) =~ /^\s*$/) {
289 $attribs->{completion_word} = \@jcm_cmd_list;
290 return $term->completion_matches($text,
291 $attribs->{'list_completion_function'});
298 my @completions = completeme($given, $given, 0, length($given));
299 if ($#completions == 0) {
300 $name = shift @completions;
306 # start making requests
309 $line = $term->readline("obdcontrol > ");
317 my @arg = split(' ', $line);
318 my $word = shift @arg;
324 $cmd = find_command($word);
327 printf STDERR "$word: No such command, or not unique.\n";
331 if ($cmd eq "help" || $cmd eq "exit" || $cmd eq "quit") {
332 return (&{$commands{$cmd}->{func}}(@arg));
336 return (&{$commands{$cmd}->{func}}(@arg));
340 # select the OBD device we talk to
345 print "Disconnecting active session ($::client_id)...";
346 Disconnect($::client_id);
349 $device = "/dev/obd0";
352 # Open the device, as we need an FD for the ioctl
353 sysopen(DEV_OBD, $device, 0) || die "Cannot open $device";
354 print "Device now $device\n";
366 print "error: missing type\n";
368 print "usage: attach {ext2_obd | snap_obd | scsi_obd}\n";
372 if ($type eq "scsi_obd" ) {
378 $data = pack("iiii", $adapter, $bus, $tid, $lun);
380 } elsif ($type eq "snap_obd" ) {
385 $data = pack("iii", $snapdev, $snapidx, $tableno);
387 } elsif ($type eq "ext2_obd") {
388 $data = pack("i", 4711); # bogus data
391 print "error: unknown attach type $type\n";
395 my $len = length($type);
396 my $cl = length($data);
398 print "type $type (len $len), datalen $datalen ($cl)\n";
399 my $packed = pack("Lipip", $::client_id, length($type), $type, $datalen, $data);
401 my $rc = ioctl(DEV_OBD, &OBD_IOC_ATTACH, $packed);
404 print STDERR "ioctl failed: $!\n";
405 } elsif ($rc eq "0 but true") {
406 print "Finished (success)\n";
408 print "ioctl returned error code $rc.\n";
415 my $rc = ioctl(DEV_OBD, &OBD_IOC_DETACH, $data);
418 print STDERR "ioctl failed: $!\n";
419 } elsif ($rc eq "0 but true") {
420 print "Finished (success)\n";
422 print "ioctl returned error code $rc.\n";
427 sub TestExt2Iterator {
428 if (!defined($::client_id)) {
429 print "You must first ``connect''.\n";
434 my $type = "ext2_obd";
436 $data = pack("i", 4711); # bogus data
439 my $len = length($type);
440 my $cl = length($data);
441 my $add = pack("p", $data);
442 print "type $type (len $len), datalen $datalen ($cl)\n";
443 my $packed = pack("Lipip", $::client_id, length($type), $type, $datalen, $data);
445 my $rc = ioctl(DEV_OBD, &OBD_EXT2_RUNIT, $packed);
448 print STDERR "ioctl failed: $!\n";
449 } elsif ($rc eq "0 but true") {
450 print "Finished (success)\n";
452 print "ioctl returned error code $rc.\n";
458 if (!defined($::client_id)) {
459 print "You must first ``connect''.\n";
464 my $type = "snap_obd";
466 $data = pack("i", 4711); # bogus data
469 my $len = length($type);
470 my $cl = length($data);
471 my $add = pack("p", $data);
472 print "type $type (len $len), datalen $datalen ($cl)\n";
473 my $packed = pack("Lipip", $::client_id, length($type), $type, $datalen, $data);
475 # XXX We need to fix this up so that after the objects in this snapshot
476 # are deleted, the snapshot itself is also removed from the table.
477 my $rc = ioctl(DEV_OBD, &OBD_SNAP_DELETE, $packed);
480 print STDERR "ioctl failed: $!\n";
481 } elsif ($rc eq "0 but true") {
482 print "Finished (success)\n";
484 print "ioctl returned error code $rc.\n";
489 # this routine does the whole job
491 my $restoreto = shift;
492 my $snaptable = shift;
496 # don't do anything until connected
497 if (!defined($::client_id)) {
498 print "You must first ``connect''.\n";
502 if ( ! $snaptable || ! defined $restoreto ) {
503 print "Usage: snaprestore \"restore to slot\" \"snaptable\" \"tableno\"\n";
507 if ( ! -f $snaptable ) {
508 print "Table $snaptable doesn't exist\n";
512 my $table = ReadSnapShotTable($snaptable);
513 $restoretime = FindSnapInTable($table, $restoreto);
514 if ( ! defined $table->{0} || ! defined $restoretime ) {
515 PrintSnapShotTable($table);
516 print "No current or $restoreto slot in this table\n";
520 my $currentindex = $table->{0};
521 if ( $table->{$restoretime} == $currentindex ) {
522 print "You should not restore to the current snapshot\n";
526 # swap the entries for 0 and $restoreto
527 my $tmp = $table->{$restoretime};
528 $table->{$restoretime} = $table->{0};
530 # PrintSnapShotTable($table);
533 WriteSnapShotTable($snaptable, $table);
535 # set it in the kernel
536 SnapSetTable($tableno, $snaptable);
538 # ready for the ioctl
540 my $type = "snap_obd";
541 $data = pack("i", $currentindex); # slot of previous current snapshot
544 my $len = length($type);
545 my $cl = length($data);
546 my $packed = pack("Lipip", $::client_id, length($type), $type, $datalen, $data);
548 my $rc = ioctl(DEV_OBD, &OBD_SNAP_RESTORE, $packed);
551 print STDERR "ioctl failed: $!\n";
552 } elsif ($rc eq "0 but true") {
553 print "Snaprestore finished (success)\n";
554 delete $table->{$restoretime} if defined $restoretime;
556 WriteSnapShotTable($snaptable, $table);
558 # set it in the kernel
559 SnapSetTable($tableno, $snaptable);
560 # PrintSnapShotTable($table);
563 print "ioctl returned error code $rc.\n";
567 sub FindSnapInTable {
571 foreach my $restoretime ( keys %{$table} ) {
572 if ( $table->{$restoretime} == $snapno) {
573 print "Found key $restoretime for snapno $snapno\n";
583 my $type = "snap_obd";
584 my $snaptableno = shift;
586 $data = pack("i", $snaptableno);
589 my $len = length($type);
590 my $cl = length($data);
591 my $add = pack("p", $data);
592 print "type $type (len $len), datalen $datalen ($cl)\n";
593 my $packed = pack("Lipip", $::client_id, length($type), $type, $datalen, $data);
595 my $rc = ioctl(DEV_OBD, &OBD_SNAP_PRINTTABLE, $packed);
598 print STDERR "ioctl failed: $!\n";
599 } elsif ($rc eq "0 but true") {
600 print "Finished (success)\n";
602 print "ioctl returned error code $rc.\n";
608 my $type = "snap_obd";
609 my $snaptableno = shift;
617 print "No such file $file\n";
620 $table = ReadSnapShotTable($file);
622 $snapcount = keys %{$table};
623 print "Snapcount $snapcount\n";
625 if ( ! defined $table->{0} ) {
626 print "No current snapshot in table! First make one\n";
629 $data = pack("ii", $snaptableno, $snapcount);
631 foreach my $time (sort keys %{$table}) {
632 $data .= pack("Ii", $time, $table->{$time});
636 my $len = length($type);
637 my $cl = length($data);
638 my $add = pack("p", $data);
639 print "type $type (len $len), datalen $datalen ($cl)\n";
640 my $packed = pack("Lipip", $::client_id, length($type), $type, $datalen, $data);
642 my $rc = ioctl(DEV_OBD, &OBD_SNAP_SETTABLE, $packed);
645 print STDERR "ioctl failed: $!\n";
646 } elsif ($rc eq "0 but true") {
647 print "Finished (success)\n";
649 print "ioctl returned error code $rc.\n";
656 my $file = &readl("enter file name: ");
660 my $table = ReadSnapShotTable($file);
663 PrintSnapShotTable($table);
664 my $action = &readl("Add, Delete or Quit [adq]: ");
665 goto done if ($action =~ "^q.*" );
666 goto add if ($action =~ "^a.*");
667 goto del if ($action =~ "^d.*");
671 my $idx = &readl("enter index where you want this snapshot: ");
672 my $time = &readl("enter time or 'now' or 'current': ");
673 my $oldtime = SnapFindTimeFromIdx($idx, $table);
674 if (defined $oldtime) {
675 print "This already exists, first clean up\n";
679 if ( $time eq 'now' ) {
681 } elsif ( $time eq 'current' ) {
684 $table->{$time} = $idx;
688 $didx = &readl("Enter index to delete: ");
689 my $deltime = SnapFindTimeFromIdx($didx, $table);
690 delete $table->{$deltime} if defined $deltime;
694 my $ok = &readl("OK with new table? [Yn]: ");
695 unless ( $ok eq "n" ) {
696 WriteSnapShotTable($file, $table);
700 sub SnapFindTimeFromIdx {
704 foreach my $time ( keys %{$table} ) {
705 if ( $table->{$time} == $idx ) {
712 sub PrintSnapShotTable {
716 foreach $time ( sort keys %{$table} ) {
717 my $stime = localtime($time);
721 printf "Time: %s -- Index %d\n", $stime, $table->{$time};
725 sub ReadSnapShotTable {
732 my ($time, $index) = split ;
733 $table->{$time} = $index;
737 PrintSnapShotTable($table);
742 sub WriteSnapShotTable {
747 foreach my $time ( sort keys %{$table} ) {
748 print FH "$time $table->{$time}\n";
758 # Note: _copy IOCTL takes parameters as dst, src.
759 # Copy function takes parameters as src, dst.
760 my $data = pack("III", $::client_id, $dstid, $srcid);
763 my $packed = pack("ip", $datalen, $data);
764 my $rc = ioctl(DEV_OBD, &OBD_IOC_COPY, $packed);
767 print STDERR "ioctl failed: $!\n";
768 } elsif ($rc eq "0 but true") {
769 print "Finished (success)\n";
771 print "ioctl returned error code $rc.\n";
780 # Note: _migr IOCTL takes parameters as dst, src.
781 # Migrate function takes parameters as src, dst.
782 my $data = pack("III", $::client_id, $dstid, $srcid);
785 my $packed = pack("ip", $datalen, $data);
786 my $rc = ioctl(DEV_OBD, &OBD_IOC_MIGR, $packed);
789 print STDERR "ioctl failed: $!\n";
790 } elsif ($rc eq "0 but true") {
791 print "Finished (success)\n";
793 print "ioctl returned error code $rc.\n";
801 my $data = pack("i", $size);
804 my $packed = pack("ip", $datalen, $data);
805 my $rc = ioctl(DEV_OBD, &OBD_IOC_FORMATOBD, $packed);
808 print STDERR "ioctl failed: $!\n";
809 } elsif ($rc eq "0 but true") {
810 print "Finished (success)\n";
812 print "ioctl returned error code $rc.\n";
820 my $data = pack("ii", $partno, $size);
823 my $packed = pack("ip", $datalen, $data);
824 my $rc = ioctl(DEV_OBD, &OBD_IOC_PARTITION, $packed);
827 print STDERR "ioctl failed: $!\n";
828 } elsif ($rc eq "0 but true") {
829 print "Finished (success)\n";
831 print "ioctl returned error code $rc.\n";
841 # XXX we need a getinfo ioctl to validate parameters
844 if ($arg && !defined($::st = stat($arg))) {
845 print "$arg is not a valid device\n";
850 $dev = $::st->rdev() unless $dev;
851 $data = pack("i", $dev);
855 my $packed = pack("ip", $datalen, $data);
856 my $rc = ioctl(DEV_OBD, &OBD_IOC_SETUP, $packed);
859 print STDERR "ioctl failed: $!\n";
860 } elsif ($rc eq "0 but true") {
861 print "Finished (success)\n";
863 print "ioctl returned error code $rc.\n";
869 my $rc = ioctl(DEV_OBD, &OBD_IOC_CLEANUP, $err);
872 print STDERR "ioctl failed: $!\n";
873 } elsif ($rc eq "0 but true") {
874 print "Finished (success)\n";
877 print "ioctl returned error code $rc.\n";
886 $rc = ioctl(DEV_OBD, &OBD_IOC_CONNECT, $packed);
887 $id = unpack("I", $packed);
890 print STDERR "ioctl failed: $!\n";
891 } elsif ($rc eq "0 but true") {
893 print "Client ID : $id\n";
894 print "Finished (success)\n";
896 print "ioctl returned error code $rc.\n";
908 print "syntax: disconnect [client ID]\n";
909 print "When client ID is not given, the last valid client ID to be returned by a\n";
910 print "connect command this session is used; there is no such ID.\n";
914 my $packed = pack("L", $id);
915 my $rc = ioctl(DEV_OBD, &OBD_IOC_DISCONNECT, $packed);
918 print STDERR "ioctl failed: $!\n";
919 } elsif ($rc eq "0 but true") {
920 $::client_id = undef;
921 print "Finished (success)\n";
923 print "ioctl returned error code $rc.\n";
933 if (defined($quiet) && $quiet ne "quiet") {
934 print "syntax: create [number of objects [quiet]]\n";
938 my $packed = pack("IL", $::client_id, $prealloc);
939 if (!defined($arg) || scalar($arg) < 2) {
940 print "Creating 1 object...\n";
941 $rc = ioctl(DEV_OBD, &OBD_IOC_CREATE, $packed);
942 if (!defined($quiet)) {
943 my $obdo = obdo_unpack($packed, 4);
944 print "Created object #$obdo->{id}.\n";
949 print "Creating " . scalar($arg) . " objects...\n";
950 for ($i = 0; $i < scalar($arg); $i++) {
951 $rc = ioctl(DEV_OBD, &OBD_IOC_CREATE, $packed);
952 my $ino = unpack("L", $packed);
953 if ($rc ne "0 but true") {
955 $packed = pack("IL", $::client_id, $prealloc);
956 } elsif (!defined($quiet)) {
957 $packed = pack("IL", $::client_id, $prealloc);
958 print "Created object #$ino.\n";
964 print STDERR "ioctl failed: $!\n";
965 } elsif ($rc eq "0 but true") {
966 print "Finished (success)\n";
968 print "ioctl returned error code $rc.\n";
974 my $rc = ioctl(DEV_OBD, &OBD_IOC_SYNC, $err);
977 print STDERR "ioctl failed: $!\n";
978 } elsif ($rc eq "0 but true") {
979 print "Finished (success)\n";
981 print "ioctl returned error code $rc.\n";
986 if (!defined($::client_id)) {
987 print "You must first ``connect''.\n";
993 if (!defined($arg) || scalar($arg) < 1) {
994 print "usage: destroy <object number>\n";
998 print "Destroying object $arg...\n";
999 my $packed = pack("IL", $::client_id, $arg);
1000 my $rc = ioctl(DEV_OBD, &OBD_IOC_DESTROY, $packed);
1003 print STDERR "ioctl failed: $!\n";
1004 } elsif ($rc eq "0 but true") {
1005 print "Finished (success)\n";
1007 print "ioctl returned error code $rc.\n";
1012 if (!defined($::client_id)) {
1013 print "You must first ``connect''.\n";
1019 if (!defined($inode) || scalar($inode) < 1) {
1020 print "invalid arguments; type \"help getattr\" for a synopsis\n";
1026 $obdo->{id} = $inode;
1027 $obdo->{valid} = &OBD_MD_FLALL;
1028 my $packed = pack("L", $::client_id) . obdo_pack($obdo);
1029 my $rc = ioctl(DEV_OBD, &OBD_IOC_GETATTR, $packed);
1033 print STDERR "ioctl failed: $!\n";
1034 } elsif ($rc eq "0 but true") {
1035 $obdo = obdo_unpack($packed, 4);
1038 print "ioctl returned error code $rc.\n";
1043 if (!defined($::client_id)) {
1044 print "You must first ``connect''.\n";
1050 if (!defined($inode) || scalar($inode) < 1) {
1051 print "invalid arguments; type \"help setattr\" for a synopsis\n";
1055 # XXX we do not currently set all of the fields in the obdo
1057 $obdo->{id} = $inode;
1058 $obdo->{mode} = oct(shift);
1059 $obdo->{uid} = shift;
1060 $obdo->{gid} = shift;
1061 $obdo->{size} = shift;
1062 $obdo->{atime} = shift;
1063 $obdo->{mtime} = shift;
1064 $obdo->{ctime} = shift;
1067 if (defined($obdo->{atime})) {
1068 $obdo->{valid} |= &OBD_MD_FLATIME;
1070 if (defined($obdo->{mtime})) {
1071 $obdo->{valid} |= &OBD_MD_FLMTIME;
1073 if (defined($obdo->{ctime})) {
1074 $obdo->{valid} |= &OBD_MD_FLCTIME;
1076 if (defined($obdo->{size})) {
1077 $obdo->{valid} |= &OBD_MD_FLSIZE;
1079 if (defined($obdo->{mode})) {
1080 $obdo->{valid} |= &OBD_MD_FLMODE;
1082 if (defined($obdo->{uid})) {
1083 $obdo->{valid} |= &OBD_MD_FLUID;
1085 if (defined($obdo->{gid})) {
1086 $obdo->{valid} |= &OBD_MD_FLGID;
1089 printf "valid is %x, mode is %o\n", $obdo->{valid}, $obdo->{mode};
1090 my $packed = pack("L", $::client_id) . obdo_pack($obdo);
1091 my $rc = ioctl(DEV_OBD, &OBD_IOC_SETATTR, $packed);
1094 print STDERR "ioctl failed: $!\n";
1095 } elsif ($rc eq "0 but true") {
1096 print "Finished (success)\n";
1098 print "ioctl returned error code $rc.\n";
1103 if (!defined($::client_id)) {
1104 print "You must first ``connect''.\n";
1112 if (!defined($inode) || scalar($inode) < 1 || !defined($count) ||
1113 $count < 1 || (defined($offset) && $offset < 0)) {
1114 print "invalid arguments; type \"help read\" for a synopsis\n";
1118 if (!defined($offset)) {
1122 print("Reading $count bytes starting at byte $offset from object " .
1125 # "allocate" a large enough buffer
1126 my $buf = sprintf("%${count}s", " ");
1127 die "suck" if (length($buf) != $count);
1129 # the perl we're using doesn't support pack type Q, and offset is 64 bits
1130 my $packed = pack("ILpLLL", $::client_id, $inode, $buf, $count, $offset, 0);
1132 my $rc = ioctl(DEV_OBD, &OBD_IOC_READ, $packed);
1134 $retval = unpack("l", $packed);
1137 print STDERR "ioctl failed: $!\n";
1138 } elsif ($rc eq "0 but true") {
1140 print substr($buf, 0, $retval);
1141 print "\nRead $retval of an attempted $count bytes.\n";
1142 print "Finished (success)\n";
1144 print "Finished (error $retval)\n";
1147 print "ioctl returned error code $rc.\n";
1152 if (!defined($::client_id)) {
1153 print "You must first ``connect''.\n";
1161 if (!defined($inode) || scalar($inode) < 1 || !defined($count) ||
1162 $count < 1 || (defined($offset) && $offset < 0)) {
1163 print "invalid arguments; type \"help read\" for a synopsis\n";
1167 if (!defined($offset)) {
1171 print("Reading $count bytes starting at byte $offset from object " .
1174 # "allocate" a large enough buffer
1175 my $buf = sprintf("%${count}s", " ");
1176 die "suck" if (length($buf) != $count);
1178 # the perl we're using doesn't support pack type Q, and offset is 64 bits
1179 my $packed = pack("ILpLLL", $::client_id, $inode, $buf, $count, $offset, 0);
1181 my $rc = ioctl(DEV_OBD, &OBD_IOC_READ2, $packed);
1183 $retval = unpack("l", $packed);
1186 print STDERR "ioctl failed: $!\n";
1187 } elsif ($rc eq "0 but true") {
1189 print substr($buf, 0, $retval);
1190 print "\nRead $retval of an attempted $count bytes.\n";
1191 print "Finished (success)\n";
1193 print "Finished (error $retval)\n";
1196 print "ioctl returned error code $rc.\n";
1201 if (!defined($::client_id)) {
1202 print "You must first ``connect''.\n";
1208 my $text = join(' ', @_);
1209 my $count = length($text);
1211 if (!defined($inode) || scalar($inode) < 1 || !defined($offset) ||
1212 scalar($offset) < 0) {
1213 print "invalid arguments; type \"help write\" for a synopsis\n";
1217 if (!defined($text)) {
1222 print("Writing $count bytes starting at byte $offset to object " .
1225 # the perl we're using doesn't support pack type Q
1226 my $packed = pack("ILpLLL", $::client_id, $inode, $text, $count, $offset, 0);
1227 my $rc = ioctl(DEV_OBD, &OBD_IOC_WRITE, $packed);
1229 $retval = unpack("l", $packed);
1232 print STDERR "ioctl failed: $!\n";
1233 } elsif ($rc eq "0 but true") {
1235 print "\nWrote $retval of an attempted $count bytes.\n";
1236 print "Finished (success)\n";
1238 print "Finished (error $retval)\n";
1241 print "ioctl returned error code $rc.\n";
1248 if (!defined($::client_id)) {
1249 print "You must first ``connect''.\n";
1253 if (!defined($arg) || scalar($arg) < 1 || scalar($arg) > 32) {
1257 print "Preallocating $arg inodes...\n";
1258 my $packed = pack("LLx128", $::client_id, $arg);
1259 # client id, alloc, inodes[32]
1261 my $rc = ioctl(DEV_OBD, &OBD_IOC_PREALLOCATE, $packed);
1264 print STDERR "ioctl failed: $!\n";
1265 } elsif ($rc eq "0 but true") {
1266 my $alloc = unpack("x4L", $packed);
1267 my @inodes = unpack("x8L32", $packed);
1270 print "Got $alloc inodes: ";
1271 foreach $i (@inodes) {
1274 print "\nFinished (success)\n";
1276 print "ioctl returned error code $rc.\n";
1281 my $rc = ioctl(DEV_OBD, &OBD_IOC_DEC_USE_COUNT, 0);
1284 print STDERR "ioctl failed: $!\n";
1285 } elsif ($rc eq "0 but true") {
1286 print "Finished (success)\n";
1288 print "ioctl returned error code $rc.\n";
1293 if (!defined($::client_id)) {
1294 print "You must first ``connect''.\n";
1306 # __kernel_fsid_t f_fsid; (64 bits)
1311 my $packed = pack("LLLLLLLIILL6", $::client_id, 0, 0, 0, 0, 0, 0, 0, 0, 0,
1314 my $rc = ioctl(DEV_OBD, &OBD_IOC_STATFS, $packed);
1317 print STDERR "ioctl failed: $!\n";
1318 } elsif ($rc eq "0 but true") {
1319 # skip both the conn_id and the fs_type in the buffer
1320 my ($bsize, $blocks, $bfree, $bavail, $files, $ffree) =
1321 unpack("x4x4LLLLLL", $packed);
1322 print("$bsize byte blocks: $blocks, " . ($blocks - $bfree) . " used, " .
1323 "$bfree free ($bavail available).\n");
1324 print "$files files, " . ($files - $ffree) . " used, $ffree free.\n";
1325 print "Finished (success)\n";
1327 print "ioctl returned error code $rc.\n";
1334 if ( !$arg || !$commands{$arg} ) {
1335 print "Comands: ", join( ' ', @jcm_cmd_list), "\n";
1337 print "Usage: " . $commands{$arg}->{doc} . "\n";
1343 print "Disconnecting active session ($::client_id)...";
1344 Disconnect($::client_id);