# p2ph generated invalid macros for ioctl stuff, so I override some of it here
eval 'sub OBD_IOC_CREATE () { &_IOC(2, ord(\'f\'), 3, 4);}' unless
defined(&OBD_IOC_CREATE);
-eval 'sub OBD_IOC_SETUP_OBDDEV () { &_IOC(1, ord(\'f\'), 4, 4);}' unless
- defined(&OBD_IOC_SETUP_OBDDEV);
+eval 'sub OBD_IOC_SETUP () { &_IOC(1, ord(\'f\'), 4, 4);}' unless
+ defined(&OBD_IOC_SETUP);
eval 'sub OBD_IOC_CLEANUP () { &_IOC(0, ord(\'f\'), 5, 0);}' unless
defined(&OBD_IOC_CLEANUP);
eval 'sub OBD_IOC_DESTROY () { &_IOC(1, ord(\'f\'), 6, 4);}' unless
defined(&OBD_IOC_PARTITION);
eval 'sub OBD_IOC_ATTACH () { &_IOC(3, ord(\'f\'), 20, 4);}' unless
defined(&OBD_IOC_ATTACH);
+eval 'sub OBD_IOC_DETACH () { &_IOC(3, ord(\'f\'), 21, 4);}' unless
+ defined(&OBD_IOC_DETACH);
+eval 'sub OBD_IOC_COPY () { &_IOC(3, ord(\'f\'), 22, 4);}' unless
+ defined(&OBD_IOC_COPY);
+eval 'sub OBD_IOC_MIGR () { &_IOC(3, ord(\'f\'), 23, 4);}' unless
+ defined(&OBD_IOC_MIGR);
+eval 'sub OBD_SNAP_SETTABLE () { &_IOC(3, ord(\'f\'), 40, 4);}' unless
+ defined(&OBD_SNAP_SETTABLE);
+eval 'sub OBD_SNAP_PRINTTABLE () { &_IOC(3, ord(\'f\'), 41, 4);}' unless
+ defined(&OBD_SNAP_PRINTTABLE);
eval 'sub ATTR_MODE () {1;}' unless defined(&ATTR_MODE);
eval 'sub ATTR_UID () {2;}' unless defined(&ATTR_UID);
use IO::Handle;
-my ($device, $filesystem, $file);
-# startup options (I'll replace these when I have some to replace with)
-GetOptions("f!" => \$file, "device=s" => \$device, "fs=s" => $filesystem) || die "Getoptions";
-
-# genuine new simulated OBD device
-$device = "/dev/obd0" unless $device;
-# object store in the ext2 formatted block device
-$filesystem = "/dev/loop0" unless $filesystem;
+my ($file);
+GetOptions("f!" => \$file, "device=s" => \$::device, "fs=s" => $::filesystem) || die "Getoptions";
# get a console for the app
my $arg;
my %commands =
- ('create' => {func => "Create", doc => "create: creates a new inode"},
- 'attach' => {func => "Attach", doc => "format type [adapter bus tid lun]"},
+ ('device' => {func => "Device", doc => "device <dev>: open another OBD device"},
+ 'filesystem' => {func => "Filesystem", doc => "filesystem <dev>: partition for direct OBD device"},
+ 'create' => {func => "Create", doc => "create: creates a new inode"},
+ 'attach' => {func => "Attach", doc => "attach type [adapter bus tid lun]"},
+ 'detach' => {func => "Detach", doc => "detach this device"},
+ 'snapattach' => {func => "SnapAttach", doc => "snapattach snapno table"},
+ 'snapset' => {func => "SnapSetTable", doc => "snapset tableno file" },
+ 'snapprint' => {func => "SnapPrint", doc => "snapprint tableno"},
+
+ 'snaptable' => {func => "SnapShotTable", doc => "snaptable: build a snapshot table (interactive)"},
+ 'copy' => {func => "Copy", doc => "copy srcid tgtid"},
+ 'migrate' => {func => "Migrate", doc => "migrate srcid tgtid"},
'format' => {func => "Format", doc => "format type adapter bus tid lun size"},
'partition' => {func => "Partition", doc => "partition type adapter bus tid lun partition size"},
'setup' => {func => "Setup", doc => "setup: link the ext2 partition (default /dev/loop0) to this obddev"},
#
my @jcm_cmd_list = keys %commands;
-#------------------------------------------------------------------------------
-# Open the device, as we need an FD for the ioctl
-sysopen(DEV_OBD, $device, 0) || die "Cannot open $device";
+my $term, $attribs;
+
+
+# Get going....
-if (!defined($::st = stat($filesystem))) {
- die "Unable to stat $filesystem.\n";
+Device($::device);
+Filesystem($::filesystem);
+
+sub readl {
+ if ( $file ) {
+ my $str = <STDIN>;
+ chop($str);
+ return $str;
+ } else {
+ return $term->readline(@_);
+ }
}
-my $term, $attribs;
+
if ( $file ) {
while ( <STDIN> ) {
# make sure stdout is not buffered
STDOUT->autoflush(1);
+
# Get on with the show
process_line();
}
return (&{$commands{$cmd}->{func}}(@arg));
}
+# set the object store in the ext2 formatted block device
+sub Filesystem {
+ my $filesystem = shift;
+ $filesystem = "/dev/loop0" unless $filesystem;
+
+ $::filesystem = $filesystem;
+ if (!defined($::st = stat($filesystem))) {
+ die "Unable to stat $filesystem.\n";
+ }
+}
+
+# select the OBD device we talk to
+sub Device {
+ my $device = shift;
+
+ if (! $device ) {
+ $device = "/dev/obd0";
+ }
+ $::device = $device;
+ # Open the device, as we need an FD for the ioctl
+ sysopen(DEV_OBD, $device, 0) || die "Cannot open $device";
+ print "Device now $device\n";
+}
+
+
sub Attach {
my $err = 0;
}
}
+sub Detach {
+ my $err = 0;
+ my $data = "";
+ my $rc = ioctl(DEV_OBD, &OBD_IOC_DETACH, $data);
+
+ if (!defined $rc) {
+ print STDERR "ioctl failed: $!\n";
+ } elsif ($rc eq "0 but true") {
+ print "Finished (success)\n";
+ } else {
+ print "ioctl returned error code $rc.\n";
+ }
+}
+
+
+sub SnapPrint {
+ my $err = 0;
+ my $type = "snap_obd";
+ my $snaptableno = shift;
+
+ $data = pack("i", $snaptableno);
+ $datalen = 4;
+
+ my $len = length($type);
+ my $cl = length($data);
+ my $add = pack("p", $data);
+ print "type $type (len $len), datalen $datalen ($cl)\n";
+ my $packed = pack("ipip", length($type), $type, $datalen, $data);
+
+ my $rc = ioctl(DEV_OBD, &OBD_SNAP_PRINTTABLE, $packed);
+
+ if (!defined $rc) {
+ print STDERR "ioctl failed: $!\n";
+ } elsif ($rc eq "0 but true") {
+ print "Finished (success)\n";
+ } else {
+ print "ioctl returned error code $rc.\n";
+ }
+}
+
+sub SnapSetTable {
+ my $err = 0;
+ my $type = "snap_obd";
+ my $snaptableno = shift;
+ my $file = shift;
+ my $snapcount;
+ my $table = {};
+ my $data;
+ my $datalen = 0;
+
+ if ( ! -f $file ) {
+ print "No such file $file\n";
+ }
+
+ $table = ReadSnapShotTable($file);
+
+ $snapcount = keys %{$table};
+ print "Snapcount $snapcount\n";
+
+ if ( ! defined $table->{0} ) {
+ print "No current snapshot in table! First make one\n";
+ return ;
+ }
+ $data = pack("ii", $snaptableno, $snapcount);
+ $datalen = 2 * 4;
+ foreach my $time (sort keys %{$table}) {
+ $data .= pack("Ii", $time, $table->{$time});
+ $datalen += 8;
+ }
+
+ my $len = length($type);
+ my $cl = length($data);
+ my $add = pack("p", $data);
+ print "type $type (len $len), datalen $datalen ($cl)\n";
+ my $packed = pack("ipip", length($type), $type, $datalen, $data);
+
+ my $rc = ioctl(DEV_OBD, &OBD_SNAP_SETTABLE, $packed);
+
+ if (!defined $rc) {
+ print STDERR "ioctl failed: $!\n";
+ } elsif ($rc eq "0 but true") {
+ print "Finished (success)\n";
+ } else {
+ print "ioctl returned error code $rc.\n";
+ }
+}
+
+
+sub SnapAttach {
+ my $err = 0;
+ my $type = "snap_obd";
+ my $snapdev = shift;
+ my $snapno = shift;
+ my $tableno = shift;
+ my $snapcount;
+ my $data;
+ my $datalen = 0;
+
+ if ( ! -f $file ) {
+ print "No such file $file\n";
+ }
+
+ $table = ReadSnapShotTable($file);
+ $data = pack("iii", $snapdev, $snapno, $tableno);
+ $datalen = 3 * 4;
+
+ my $len = length($type);
+ my $cl = length($data);
+ my $add = pack("p", $data);
+ print "type $type (len $len), datalen $datalen ($cl)\n";
+ my $packed = pack("ipip", length($type), $type, $datalen, $data);
+
+ my $rc = ioctl(DEV_OBD, &OBD_IOC_ATTACH, $packed);
+
+ if (!defined $rc) {
+ print STDERR "ioctl failed: $!\n";
+ } elsif ($rc eq "0 but true") {
+ print "Finished (success)\n";
+ } else {
+ print "ioctl returned error code $rc.\n";
+ }
+}
+
+
+sub SnapShotTable {
+
+ my $file = &readl("enter file name: ");
+ if ( ! -f $file ) {
+ `touch $file`;
+ }
+ my $table = ReadSnapShotTable($file);
+
+ again:
+ PrintSnapShotTable($table);
+ my $action = &readl("Add, Delete or Quit [adq]: ");
+ goto done if ($action =~ "^q.*" );
+ goto add if ($action =~ "^a.*");
+ goto del if ($action =~ "^d.*");
+ goto again;
+
+ add:
+ my $idx = &readl("enter index where you want this snapshot: ");
+ my $time = &readl("enter time or 'now' or 'current': ");
+ my $oldtime = SnapFindTimeFromIdx($idx, $table);
+ if (defined $oldtime) {
+ print "This already exists, first clean up\n";
+ goto again;
+ }
+
+ if ( $time eq 'now' ) {
+ $time = time;
+ } elsif ( $time eq 'current' ) {
+ $time = 0;
+ }
+ $table->{$time} = $idx;
+ goto again;
+
+ del:
+ $didx = &readl("Enter index to delete: ");
+ my $deltime = SnapFindTimeFromIdx($didx, $table);
+ delete $table->{$deltime} if defined $deltime;
+ goto again;
+
+ done:
+ my $ok = &readl("OK with new table? [Yn]: ");
+ unless ( $ok eq "no" ) {
+ WriteSnapShotTable($file, $table);
+ }
+}
+
+sub SnapFindTimeFromIdx {
+ my $idx = shift;
+ my $table = shift;
+
+ foreach my $time ( keys %{$table} ) {
+ if ( $table->{$time} == $idx ) {
+ return $time;
+ }
+ }
+ undef;
+}
+
+sub PrintSnapShotTable {
+ my $table = shift;
+ my $time;
+
+ foreach $time ( sort keys %{$table} ) {
+ my $stime = localtime($time);
+ if ( ! $time ) {
+ $stime = "current";
+ }
+ printf "Time: %s -- Index %d\n", $stime, $table->{$time};
+ }
+}
+
+sub ReadSnapShotTable {
+
+ my $file = shift;
+ my $table = {};
+
+ open FH, "<$file";
+ while ( <FH> ) {
+ my ($time, $index) = split ;
+ $table->{$time} = $index;
+ }
+ close FH;
+
+ PrintSnapShotTable($table);
+
+ return $table;
+}
+
+sub WriteSnapShotTable {
+ my $file = shift;
+ my $table = shift;
+
+ open FH, ">$file";
+ foreach my $time ( sort keys %{$table} ) {
+ print FH "$time $table->{$time}\n";
+ }
+ close FH;
+}
+
+sub Copy {
+ my $err = 0;
+ my $srcid = shift;
+ my $tgtid = shift;
+ my $data = pack("III", $::client_id, $srcid, $tgtid);
+ my $datalen = 12;
+
+ my $packed = pack("ip", $datalen, $data);
+ my $rc = ioctl(DEV_OBD, &OBD_IOC_COPY, $packed);
+
+ if (!defined $rc) {
+ print STDERR "ioctl failed: $!\n";
+ } elsif ($rc eq "0 but true") {
+ print "Finished (success)\n";
+ } else {
+ print "ioctl returned error code $rc.\n";
+ }
+}
+
+sub Migrate {
+ my $err = 0;
+ my $srcid = shift;
+ my $tgtid = shift;
+ my $data = pack("III", $::client_id, $srcid, $tgtid);
+ my $datalen = 12;
+
+ my $packed = pack("ip", $datalen, $data);
+ my $rc = ioctl(DEV_OBD, &OBD_IOC_MIGR, $packed);
+
+ if (!defined $rc) {
+ print STDERR "ioctl failed: $!\n";
+ } elsif ($rc eq "0 but true") {
+ print "Finished (success)\n";
+ } else {
+ print "ioctl returned error code $rc.\n";
+ }
+}
+
+
sub Format {
my $err = 0;
my $size = shift;
my $data;
my $datalen = 0;
- $type = "sim_obd" unless $type;
+ $type = "ext2_obd" unless $type;
- if ( $type eq "sim_obd" ) {
+ if ( $type eq "ext2_obd" ) {
my $dev = shift;
$dev = $::st->rdev() unless $dev;
$data = pack("i", $dev);
}
my $packed = pack("ip", $datalen, $data);
- my $rc = ioctl(DEV_OBD, &OBD_IOC_SETUP_OBDDEV, $packed);
+ my $rc = ioctl(DEV_OBD, &OBD_IOC_SETUP, $packed);
if (!defined $rc) {
print STDERR "ioctl failed: $!\n";
git://git.whamcloud.com / fs / lustre-release.git / blobdiff