# 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 ATTR_MODE () {1;}' unless defined(&ATTR_MODE);
-eval 'sub ATTR_UID () {2;}' unless defined(&ATTR_UID);
-eval 'sub ATTR_GID () {4;}' unless defined(&ATTR_GID);
-eval 'sub ATTR_SIZE () {8;}' unless defined(&ATTR_SIZE);
-eval 'sub ATTR_ATIME () {16;}' unless defined(&ATTR_ATIME);
-eval 'sub ATTR_MTIME () {32;}' unless defined(&ATTR_MTIME);
-eval 'sub ATTR_CTIME () {64;}' unless defined(&ATTR_CTIME);
+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 OBD_SNAP_DELETE() { &_IOC(3, ord(\'f\'), 42, 4);}' unless
+ defined(&OBD_SNAP_DELETE);
+eval 'sub OBD_SNAP_RESTORE() { &_IOC(3, ord(\'f\'), 43, 4);}' unless
+ defined(&OBD_SNAP_RESTORE);
+
+eval 'sub OBD_EXT2_RUNIT () { &_IOC(3, ord(\'f\'), 61, 4);}' unless
+ defined(&OBD_EXT2_RUNIT);
+
+eval 'sub OBD_MD_FLALL () {~0;}' unless defined(&OBD_MD_FLALL);
+eval 'sub OBD_MD_FLATIME () {1<<1;}' unless defined(&OBD_MD_FLATIME);
+eval 'sub OBD_MD_FLMTIME () {1<<2;}' unless defined(&OBD_MD_FLMTIME);
+eval 'sub OBD_MD_FLCTIME () {1<<3;}' unless defined(&OBD_MD_FLCTIME);
+eval 'sub OBD_MD_FLSIZE () {1<<4;}' unless defined(&OBD_MD_FLSIZE);
+eval 'sub OBD_MD_FLMODE () {1<<7;}' unless defined(&OBD_MD_FLMODE);
+eval 'sub OBD_MD_FLUID () {1<<8;}' unless defined(&OBD_MD_FLUID);
+eval 'sub OBD_MD_FLGID () {1<<9;}' unless defined(&OBD_MD_FLGID);
use Getopt::Long;
use File::stat;
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";
+# NOTE long long are layed out in ia32 memory as follows:
+# u = 0xaaaabbbbccccdddd has ccccdddd at &u and aaaabbbb 4 bytes on
+# this may be different on other architectures
+
+# we use 32-bit integers for all 64-bit quantities in this program
+# #define OBD_INLINESZ 60
+# #define OBD_OBDMDSZ 60
+# /* Note: 64-bit types are 64-bit aligned in structure */
+# struct obdo {
+# obd_id o_id;
+# obd_gr o_gr;
+# obd_time o_atime;
+# obd_time o_mtime;
+# obd_time o_ctime;
+# obd_size o_size;
+# obd_blocks o_blocks;
+# obd_blksize o_blksize;
+# obd_mode o_mode;
+# obd_uid o_uid;
+# obd_gid o_gid;
+# obd_flag o_flags;
+# obd_flag o_obdflags;
+# obd_count o_nlink;
+# obd_count o_generation;
+# obd_flag o_valid; /* hot fields in this obdo */
+# char o_inline[60];
+# char o_obdmd[60];
+# struct list_head o_list;
+# struct obd_ops *o_op;
+# };
+
+sub obdo_pack {
+ my $obdo = shift;
+ pack "LL LL LL LL LL LL LL L L L L L L L L L a60 a60 L L L",
+ $obdo->{id}, 0,
+ $obdo->{gr}, 0,
+ $obdo->{atime}, 0,
+ $obdo->{mtime}, 0 ,
+ $obdo->{ctime}, 0,
+ $obdo->{size}, 0,
+ $obdo->{blocks}, 0,
+ $obdo->{blksize},
+ $obdo->{mode},
+ $obdo->{uid},
+ $obdo->{gid},
+ $obdo->{flags},
+ $obdo->{obdflags},
+ $obdo->{nlink},
+ $obdo->{generation},
+ $obdo->{valid},
+ $obdo->{inline},
+ $obdo->{obdmd},
+ 0, 0, # struct list_head
+ 0; # struct obd_ops
+}
-# genuine new simulated OBD device
-$device = "/dev/obd0" unless $device;
-# object store in the ext2 formatted block device
-$filesystem = "/dev/loop0" unless $filesystem;
+sub obdo_unpack {
+ my $buf = shift;
+ my $offset = shift;
+ my $obdo;
+ ($obdo->{id},
+ $obdo->{gr},
+ $obdo->{atime},
+ $obdo->{mtime},
+ $obdo->{ctime},
+ $obdo->{size},
+ $obdo->{blocks},
+ $obdo->{blksize},
+ $obdo->{mode},
+ $obdo->{uid},
+ $obdo->{gid},
+ $obdo->{flags},
+ $obdo->{obdflags},
+ $obdo->{nlink},
+ $obdo->{generation},
+ $obdo->{valid},
+ $obdo->{inline},
+ $obdo->{obdmd}) = unpack "x${offset}Lx4 Lx4 Lx4 Lx4 Lx4 Lx4 Lx4 L L L L L L L L L a60 a60", $buf;
+ $obdo;
+}
+sub obdo_print {
+
+ my $obdo = shift;
+
+ 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",
+ $obdo->{id},
+ $obdo->{gr},
+ $obdo->{atime},
+ $obdo->{mtime},
+ $obdo->{ctime},
+ $obdo->{size},
+ $obdo->{blocks},
+ $obdo->{blksize},
+ $obdo->{mode},
+ $obdo->{uid},
+ $obdo->{gid},
+ $obdo->{flags},
+ $obdo->{obdflags},
+ $obdo->{nlink},
+ $obdo->{valid},
+ $obdo->{inline},
+ $obdo->{obdmd};
+}
+
+
+my ($file);
+
+GetOptions("f!" => \$file, "device=s" => \$::device, ) || 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]"},
- '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"},
+ ('device' => {func => "Device", doc => "device <dev>: open another OBD device"},
+ 'create' => {func => "Create", doc => "create [<num> [<mode> [quiet]]]: create new object(s) (files, unless mode is given)"},
+ 'attach' => {func => "Attach", doc => "attach { ext2_obd | snap_obd snapdev snapidx tableno | scsi_obd adapter bus tid lun }: attach this minor device to the specified driver" },
+ 'detach' => {func => "Detach", doc => "detach this minor device"},
+ 'testext2iterator' => {func => "TestExt2Iterator", doc => "test ext2 iterator function"},
+ 'snapset' => {func => "SnapSetTable", doc => "snapset <tableno> <file>: set the table (created with snaptable) as table #tableno" },
+ 'snapprint' => {func => "SnapPrint", doc => "snapprint <tableno>: output the contents of table #tableno to the syslog"},
+ 'snapdelete' => {func => "SnapDelete", doc => "snapdelete: delete connected snap obd objects from disk"},
+ 'snaprestore' => {func => "SnapRestore", doc => "snaprestore : restore connected old snap objects to be current"},
+ 'snaptable' => {func => "SnapShotTable", doc => "snaptable: build a snapshot table (interactive)"},
+ 'copy' => {func => "Copy", doc => "copy <srcid> <tgtid>: copy objects"},
+ 'migrate' => {func => "Migrate", doc => "migrate <srcid> <tgtid>: migrate data from one object to another"},
+ 'partition' => {func => "Partition", doc => "partition <type> <adapter> <bus> <tid> <lun> <partition> <size>: create a partition"},
+ 'format' => {func => "Format", doc => "format <type> <adapter> <bus> <tid> <lun> <size>: format a partition"},
+ 'setup' => {func => "Setup", doc => "setup [type]: link this OBD device to the underlying device (default type ext2_obd)"},
'connect' => {func => "Connect", doc => "connect: allocates client ID for this session"},
'disconnect' => {func => "Disconnect", doc => "disconnect [id]: frees client resources"},
'sync' => {func => "Sync", doc => "sync: flushes buffers to disk"},
- 'destroy' => {func => "Destroy", doc => "setup: destroys an inode"},
+ 'destroy' => {func => "Destroy", doc => "destroy <id>: destroys an object"},
'cleanup' => {func => "Cleanup", doc => "cleanup the minor obd device"},
'dec_use_count' => {func => "Decusecount", doc => "decreases the module use count so that the module can be removed following an oops"},
- 'read' => {func => "Read", doc => "read <inode> <count> [offset]"},
- 'fsread' => {func => "Read2", doc => "read <inode> <count> [offset]"},
- 'write' => {func => "Write", doc => "write <inode> <offset> <text>"},
- 'setattr' => {func => "Setattr", doc => "setattr <inode> [mode [uid [gid [size [atime [mtime [ctime]]]]]]]"},
- 'getattr' => {func => "Getattr", doc => "getattr <inode>: displays inode object attributes"},
- 'preallocate' => {func => "Preallocate", doc => "preallocate [num]: requests preallocation of num inodes."},
+ 'read' => {func => "Read", doc => "read <id> <count> [offset]: read data from object"},
+ 'fsread' => {func => "Read2", doc => "read <id> <count> [offset]: read data from object"},
+ 'write' => {func => "Write", doc => "write <id> <offset> <text>: write data to object"},
+ 'setattr' => {func => "Setattr", doc => "setattr <id> [mode [uid [gid [size [atime [mtime [ctime]]]]]]]: sets object attributes"},
+ 'getattr' => {func => "Getattr", doc => "getattr <id>: displays object attributes"},
+ 'preallocate' => {func => "Preallocate", doc => "preallocate [num]: requests preallocation of num objects."},
'statfs' => {func => "Statfs", doc => "statfs: filesystem status information"},
'help' => {func => \&Help, doc => "help: this message"},
'quit' => {func => \&Quit, doc => "see \"exit\""},
#
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, $attribs;
+
+
+# Get going....
+
+Device($::device);
-if (!defined($::st = stat($filesystem))) {
- die "Unable to stat $filesystem.\n";
+sub readl {
+ if ( $file ) {
+ my $str = <STDIN>;
+ chop($str);
+ return $str;
+ } else {
+ return $term->readline(@_);
+ }
}
-my $term, $attribs;
+
if ( $file ) {
- while ( <STDIN> ) {
- print $_;
- execute_line($_);
- }
- exit 0;
+ while ( <STDIN> ) {
+ print $_;
+ execute_line($_);
+ }
+ exit 0;
} else {
$term = new Term::ReadLine 'obdcontrol ';
$attribs = $term->Attribs;
# make sure stdout is not buffered
STDOUT->autoflush(1);
+
# Get on with the show
process_line();
}
sub execute_line {
my $line = shift;
- my @arg = split(' ', $line);
- my $word = shift @arg;
+ my @cmdline = split(' ', $line);
+ my $word = shift @cmdline;
my $cmd;
if ( $file ) {
}
if ($cmd eq "help" || $cmd eq "exit" || $cmd eq "quit") {
- return (&{$commands{$cmd}->{func}}(@arg));
+ return (&{$commands{$cmd}->{func}}(@cmdline));
}
# Call the function.
- return (&{$commands{$cmd}->{func}}(@arg));
+ return (&{$commands{$cmd}->{func}}(@cmdline));
+}
+
+
+# select the OBD device we talk to
+sub Device {
+ my $device = shift;
+
+ if ($::client_id) {
+ print "Disconnecting active session ($::client_id)...";
+ Disconnect($::client_id);
+ }
+ 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";
}
my $data;
my $datalen = 0;
- if ($type eq "obdscsi" ) {
+ if ( ! $type ) {
+ print "error: missing type\n";
+usage:
+ print "usage: attach {ext2_obd | snap_obd | scsi_obd}\n";
+ return;
+ }
+
+ if ($type eq "scsi_obd" ) {
my $adapter = shift;
my $bus = shift;
my $tid = shift;
my $lun = shift;
- $data = pack("iiiii", $adapter, $bus, $tid, $lun, $size);
+
+ $data = pack("iiii", $adapter, $bus, $tid, $lun);
$datalen = 4 * 4;
+ } elsif ($type eq "snap_obd" ) {
+ my $snapdev = shift;
+ my $snapidx = shift;
+ my $tableno = shift;
+
+ $data = pack("iii", $snapdev, $snapidx, $tableno);
+ $datalen = 3 * 4;
+ } elsif ($type eq "ext2_obd") {
+ $data = pack("i", 4711); # bogus data
+ $datalen = 0;
+ } else {
+ print "error: unknown attach type $type\n";
+ goto usage;
}
- my $packed = pack("ipip", length($type), $type, $datalen, $data);
+ my $len = length($type);
+ my $cl = length($data);
+
+ print "type $type (len $len), datalen $datalen ($cl)\n";
+ my $packed = pack("Lipip", $::client_id, length($type), $type, $datalen, $data);
my $rc = ioctl(DEV_OBD, &OBD_IOC_ATTACH, $packed);
}
}
+
+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 $rc.\n";
+ }
+}
+
+
+sub TestExt2Iterator {
+ if (!defined($::client_id)) {
+ print "You must first ``connect''.\n";
+ return;
+ }
+
+ my $err = 0;
+ my $type = "ext2_obd";
+
+ $data = pack("i", 4711); # bogus data
+ $datalen = 4;
+
+ my $len = length($type);
+ my $cl = length($data);
+ print "type $type (len $len), datalen $datalen ($cl)\n";
+ my $packed = pack("Lipip", $::client_id, length($type), $type, $datalen, $data);
+
+ my $rc = ioctl(DEV_OBD, &OBD_EXT2_RUNIT, $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 $rc.\n";
+ }
+}
+
+
+sub SnapDelete {
+ if (!defined($::client_id)) {
+ print "You must first ``connect''.\n";
+ return;
+ }
+
+ my $err = 0;
+ my $type = "snap_obd";
+
+ $data = pack("i", 4711); # bogus data
+ $datalen = 4;
+
+ my $len = length($type);
+ my $cl = length($data);
+ print "type $type (len $len), datalen $datalen ($cl)\n";
+ my $packed = pack("Lipip", $::client_id, length($type), $type, $datalen, $data);
+
+ # XXX We need to fix this up so that after the objects in this snapshot
+ # are deleted, the snapshot itself is also removed from the table.
+ my $rc = ioctl(DEV_OBD, &OBD_SNAP_DELETE, $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";
+ }
+}
+
+
+# this routine does the whole job
+sub SnapRestore {
+ my $restoreto = shift;
+ my $snaptable = shift;
+ my $tableno = shift;
+ my $restoretime;
+
+ # don't do anything until connected
+ if (!defined($::client_id)) {
+ print "You must first ``connect''.\n";
+ return;
+ }
+
+ if ( ! $snaptable || ! defined $restoreto ) {
+ print "Usage: snaprestore \"restore to slot\" \"snaptable\" \"tableno\"\n";
+ return;
+ }
+
+ if ( ! -f $snaptable ) {
+ print "Table $snaptable doesn't exist\n";
+ return;
+ }
+
+ my $table = ReadSnapShotTable($snaptable);
+ $restoretime = FindSnapInTable($table, $restoreto);
+ if ( ! defined $table->{0} || ! defined $restoretime ) {
+ PrintSnapShotTable($table);
+ print "No current or $restoreto slot in this table\n";
+ return;
+ }
+
+ my $currentindex = $table->{0};
+ if ( $table->{$restoretime} == $currentindex ) {
+ print "You should not restore to the current snapshot\n";
+ return;
+ }
+
+ # swap the entries for 0 and $restoreto
+ my $tmp = $table->{$restoretime};
+ $table->{$restoretime} = $table->{0};
+ $table->{0} = $tmp;
+ # PrintSnapShotTable($table);
+
+ # write it back
+ WriteSnapShotTable($snaptable, $table);
+
+ # set it in the kernel
+ SnapSetTable($tableno, $snaptable);
+
+ # ready for the ioctl
+ my $err = 0;
+ my $type = "snap_obd";
+ $data = pack("i", $currentindex); # slot of previous current snapshot
+ $datalen = 4;
+
+ my $len = length($type);
+ my $cl = length($data);
+ my $packed = pack("Lipip", $::client_id, length($type), $type, $datalen, $data);
+
+ my $rc = ioctl(DEV_OBD, &OBD_SNAP_RESTORE, $packed);
+
+ if (!defined $rc) {
+ print STDERR "ioctl failed: $!\n";
+ } elsif ($rc eq "0 but true") {
+ print "Snaprestore finished (success)\n";
+ delete $table->{$restoretime} if defined $restoretime;
+ # write it back
+ WriteSnapShotTable($snaptable, $table);
+
+ # set it in the kernel
+ SnapSetTable($tableno, $snaptable);
+ # PrintSnapShotTable($table);
+
+ } else {
+ print "ioctl returned error code $rc.\n";
+ }
+}
+
+sub FindSnapInTable {
+ my $table = shift;
+ my $snapno =shift;
+
+ foreach my $restoretime ( keys %{$table} ) {
+ if ( $table->{$restoretime} == $snapno) {
+ print "Found key $restoretime for snapno $snapno\n";
+ return $restoretime;
+ }
+ }
+ undef;
+}
+
+
+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);
+ print "type $type (len $len), datalen $datalen ($cl)\n";
+ my $packed = pack("Lipip", $::client_id, length($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}) {
+ # XXX we should change to pack LL instead of I for times
+ $data .= pack("Ii", $time, $table->{$time});
+ $datalen += 8;
+ }
+
+ my $len = length($type);
+ my $cl = length($data);
+ print "type $type (len $len), datalen $datalen ($cl)\n";
+ my $packed = pack("Lipip", $::client_id, length($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 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 ( $ok eq "n" ) {
+ WriteSnapShotTable($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 $src_obdo;
+ my $dst_obdo;
+
+ # Note: _copy IOCTL takes parameters as dst, src.
+ # Copy function takes parameters as src, dst.
+ $src_obdo->{id} = shift;
+ $dst_obdo->{id} = shift;
+ $src_obdo->{valid} = &OBD_MD_FLALL;
+
+ # XXX need to fix copy so we can have 2 client IDs here
+ my $packed = pack("L", $::client_id) . obdo_pack($dst_obdo) . pack("L", $::client_id) . obdo_pack($src_obdo);
+
+ 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;
+
+ # Note: _migr IOCTL takes parameters as dst, src.
+ # Migrate function takes parameters as src, dst.
+ $src_obdo->{id} = shift;
+ $dst_obdo->{id} = shift;
+ $src_obdo->{valid} = &OBD_MD_FLALL;
+
+ # We pack a dummy connection ID here
+ my $packed = pack("L", $::client_id) . obdo_pack($dst_obdo) . pack("L", $::client_id) . obdo_pack($src_obdo);
+
+ 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;
sub Setup {
my $err = 0;
- my $type = shift;
+ my $arg = shift;
my $data;
my $datalen = 0;
-
- $type = "sim_obd" unless $type;
- if ( $type eq "sim_obd" ) {
- my $dev = shift;
+ # XXX we need a getinfo ioctl to validate parameters
+ # by type here
+
+ if ($arg && !defined($::st = stat($arg))) {
+ print "$dev is not a valid device\n";
+ return;
+ }
+
+ if ( $arg ) {
$dev = $::st->rdev() unless $dev;
$data = pack("i", $dev);
$datalen = 4;
}
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";
sub Cleanup {
my $err = "0";
- my $rc = ioctl(DEV_OBD, &OBD_IOC_CLEANUP_OBDDEV, $err);
+ my $rc = ioctl(DEV_OBD, &OBD_IOC_CLEANUP, $err);
if (!defined $rc) {
print STDERR "ioctl failed: $!\n";
}
sub Create {
- my $arg = shift;
+ if (!defined($::client_id)) {
+ print "You must first ``connect''.\n";
+ return;
+ }
+
+ my $num = shift;
+ my $mode = shift;
my $quiet = shift;
my $rc;
my $prealloc = 0;
- if (defined($quiet) && !($quiet eq "quiet")) {
- print "syntax: create [number of objects [quiet]]\n";
+ if (!defined($num)) {
+ $num = 1;
+ }
+
+ if (!defined($mode)) {
+ $mode = 0100644; # create a file (rw-r--r--) if not specified
+ }
+
+ if (scalar($num) < 1 || defined($quiet) && $quiet ne "quiet") {
+ print "usage: create [<number of objects> [<mode> [quiet]]]\n";
return;
}
- my $packed = pack("IL", $::client_id, $prealloc);
- if (!defined($arg) || scalar($arg) < 2) {
- print "Creating 1 object...\n";
- $rc = ioctl(DEV_OBD, &OBD_IOC_CREATE, $packed);
- if (!defined($quiet)) {
- my $ino = unpack("L", $packed);
- print "Created object #$ino.\n";
- }
- } else {
- my $i;
+ my $i;
+ my $id = 0; # can't currently request IDs
+
+ print "Creating " . scalar($num) . " object";
+ if (scalar($num) > 1) {
+ print "s";
+ }
+ print "\n";
+
+ for ($i = 0; $i < scalar($num); $i++) {
+ my $obdo;
+ $obdo->{id} = $id;
+ $obdo->{mode} = scalar($mode);
+ $obdo->{valid} = &OBD_MD_FLMODE;
- print "Creating " . scalar($arg) . " objects...\n";
- for ($i = 0; $i < scalar($arg); $i++) {
- $rc = ioctl(DEV_OBD, &OBD_IOC_CREATE, $packed);
- my $ino = unpack("L", $packed);
- if (!($rc eq "0 but true") || $packed == 0) {
- last;
- } elsif (!defined($quiet)) {
- print "Created object #$ino.\n";
- }
+ my $packed = pack("I", $::client_id) . obdo_pack($obdo);
+ $rc = ioctl(DEV_OBD, &OBD_IOC_CREATE, $packed);
+ if ($rc ne "0 but true") {
+ last;
+ } elsif (!defined($quiet)) {
+ $obdo = obdo_unpack($packed, 4);
+ print "Created object #$obdo->{id}.\n";
}
}
return;
}
- my $arg = shift;
+ my $id = shift;
- if (!defined($arg) || scalar($arg) < 1) {
- print "destroy requires the object number to destroy.\n";
+ if (!defined($id) || scalar($id) < 1) {
+ print "usage: destroy <object number>\n";
return;
}
- print "Destroying object $arg...\n";
- my $packed = pack("IL", $::client_id, $arg);
+ print "Destroying object $id...\n";
+ my $packed = pack("IL", $::client_id, $id);
my $rc = ioctl(DEV_OBD, &OBD_IOC_DESTROY, $packed);
if (!defined $rc) {
return;
}
- my $inode = shift;
+ my $id = shift;
- if (!defined($inode) || scalar($inode) < 1) {
+ if (!defined($id) || scalar($id) < 1) {
print "invalid arguments; type \"help getattr\" for a synopsis\n";
return;
}
# see Setattr
- my $packed = pack("ILsx2lLLLI", $::client_id, $inode, 0, 0, 0, 0, 0, 0, 0,
- 0);
+ my $obdo;
+ $obdo->{id} = $id;
+ $obdo->{valid} = &OBD_MD_FLALL;
+ my $packed = pack("L", $::client_id) . obdo_pack($obdo);
my $rc = ioctl(DEV_OBD, &OBD_IOC_GETATTR, $packed);
-
+
if (!defined $rc) {
print STDERR "ioctl failed: $!\n";
} elsif ($rc eq "0 but true") {
- my ($valid, $mode, $uid, $gid, $size, $atime, $mtime, $ctime, $flags);
- ($valid, $mode, $uid, $gid, $size, $atime, $mtime, $ctime, $flags) =
- unpack("ISssx2lLLLI", $packed);
-
- printf("Inode: %d Mode: %o\n", $inode, $mode);
- printf("User: %6d Group: %6d Size: %d\n", $uid, $gid, $size);
- printf("ctime: %08lx -- %s\n", $ctime, scalar(gmtime($ctime)));
- printf("atime: %08lx -- %s\n", $atime, scalar(gmtime($atime)));
- printf("mtime: %08lx -- %s\n", $mtime, scalar(gmtime($mtime)));
- printf("flags: %08x\n", $flags);
- print "Finished (success)\n";
+ $obdo = obdo_unpack($packed, 4);
+ obdo_print($obdo);
} else {
print "ioctl returned error code $rc.\n";
}
return;
}
- my $inode = shift;
- my $valid = 0;
- my $mode = oct(shift);
- my $uid = shift;
- my $gid = shift;
- my $size = shift;
- my $atime = shift;
- my $mtime = shift;
- my $ctime = shift;
+ my $id = shift;
- if (defined($uid)) {
- $valid |= &ATTR_UID;
+ if (!defined($id) || scalar($id) < 1) {
+ print "invalid arguments; type \"help setattr\" for a synopsis\n";
+ return;
}
- if (defined($gid)) {
- $valid |= &ATTR_GID;
+
+ # XXX we do not currently set all of the fields in the obdo
+ my $obdo;
+ $obdo->{id} = $id;
+ $obdo->{mode} = oct(shift);
+ $obdo->{uid} = shift;
+ $obdo->{gid} = shift;
+ $obdo->{size} = shift;
+ $obdo->{atime} = shift;
+ $obdo->{mtime} = shift;
+ $obdo->{ctime} = shift;
+ $obdo->{valid} = 0;
+
+ if (defined($obdo->{atime})) {
+ $obdo->{valid} |= &OBD_MD_FLATIME;
}
- if (defined($size)) {
- $valid |= &ATTR_SIZE;
+ if (defined($obdo->{mtime})) {
+ $obdo->{valid} |= &OBD_MD_FLMTIME;
}
- if (defined($atime)) {
- $valid |= &ATTR_ATIME;
+ if (defined($obdo->{ctime})) {
+ $obdo->{valid} |= &OBD_MD_FLCTIME;
}
- if (defined($mtime)) {
- $valid |= &ATTR_MTIME;
+ if (defined($obdo->{size})) {
+ $obdo->{valid} |= &OBD_MD_FLSIZE;
}
- if (defined($ctime)) {
- $valid |= &ATTR_CTIME;
+ if (defined($obdo->{mode})) {
+ $obdo->{valid} |= &OBD_MD_FLMODE;
}
- if (defined($mode)) {
- $valid |= &ATTR_MODE;
+ if (defined($obdo->{uid})) {
+ $obdo->{valid} |= &OBD_MD_FLUID;
}
-
- if (!defined($inode) || scalar($inode) < 1) {
- print "invalid arguments; type \"help setattr\" for a synopsis\n";
- return;
+ if (defined($obdo->{gid})) {
+ $obdo->{valid} |= &OBD_MD_FLGID;
}
- #struct iattr {
- # unsigned int ia_valid; (32)
- # umode_t ia_mode; (16)
- # uid_t ia_uid; (16)
- # gid_t ia_gid; (16)
- # -- 16 bit alignment here! --
- # off_t ia_size; (32)
- # time_t ia_atime; (32)
- # time_t ia_mtime; (32)
- # time_t ia_ctime; (32)
- # unsigned int ia_attr_flags; (32)
- #};
-
- printf "valid is %x, mode is %o\n", $valid, $mode;
- my $packed = pack("ILLSssx2ILLLL", $::client_id, $inode, $valid, $mode,
- $uid, $gid, $size, $atime, $mtime, $ctime, 0);
+ printf "valid is %x, mode is %o\n", $obdo->{valid}, $obdo->{mode};
+ my $packed = pack("L", $::client_id) . obdo_pack($obdo);
my $rc = ioctl(DEV_OBD, &OBD_IOC_SETATTR, $packed);
if (!defined $rc) {
return;
}
- my $inode = shift;
+ my $id = shift;
my $count = shift;
my $offset = shift;
- if (!defined($inode) || scalar($inode) < 1 || !defined($count) ||
+ if (!defined($id) || scalar($id) < 1 || !defined($count) ||
$count < 1 || (defined($offset) && $offset < 0)) {
print "invalid arguments; type \"help read\" for a synopsis\n";
return;
}
print("Reading $count bytes starting at byte $offset from object " .
- "$inode...\n");
+ "$id...\n");
# "allocate" a large enough buffer
my $buf = sprintf("%${count}s", " ");
die "suck" if (length($buf) != $count);
+ my $obdo;
+ $obdo->{id} = $id;
+
# the perl we're using doesn't support pack type Q, and offset is 64 bits
- my $packed = pack("ILpLLL", $::client_id, $inode, $buf, $count, $offset, 0);
+ my $packed = pack("L", $::client_id) . obdo_pack($obdo) .
+ pack("p LL LL", $buf, $count, $offset);
my $rc = ioctl(DEV_OBD, &OBD_IOC_READ, $packed);
return;
}
- my $inode = shift;
+ my $id = shift;
my $count = shift;
my $offset = shift;
- if (!defined($inode) || scalar($inode) < 1 || !defined($count) ||
+ if (!defined($id) || scalar($id) < 1 || !defined($count) ||
$count < 1 || (defined($offset) && $offset < 0)) {
print "invalid arguments; type \"help read\" for a synopsis\n";
return;
}
print("Reading $count bytes starting at byte $offset from object " .
- "$inode...\n");
+ "$id...\n");
# "allocate" a large enough buffer
my $buf = sprintf("%${count}s", " ");
die "suck" if (length($buf) != $count);
+ my $obdo;
+ $obdo->{id} = $id;
+
# the perl we're using doesn't support pack type Q, and offset is 64 bits
- my $packed = pack("ILpLLL", $::client_id, $inode, $buf, $count, $offset, 0);
+ my $packed = pack("L", $::client_id) . obdo_pack($obdo) .
+ pack("p LL LL", $buf, $count, $offset);
my $rc = ioctl(DEV_OBD, &OBD_IOC_READ2, $packed);
return;
}
- my $inode = shift;
+ my $id = shift;
my $offset = shift;
my $text = join(' ', @_);
my $count = length($text);
- if (!defined($inode) || scalar($inode) < 1 || !defined($offset) ||
+ if (!defined($id) || scalar($id) < 1 || !defined($offset) ||
scalar($offset) < 0) {
print "invalid arguments; type \"help write\" for a synopsis\n";
return;
}
print("Writing $count bytes starting at byte $offset to object " .
- "$inode...\n");
+ "$id...\n");
+
+ my $obdo;
+ $obdo->{id} = $id;
# the perl we're using doesn't support pack type Q
- my $packed = pack("ILpLLL", $::client_id, $inode, $text, $count, $offset, 0);
+ my $packed = pack("L", $::client_id) . obdo_pack($obdo) .
+ pack("p LL LL", $buf, $count, $offset);
+
my $rc = ioctl(DEV_OBD, &OBD_IOC_WRITE, $packed);
$retval = unpack("l", $packed);
}
sub Preallocate {
- my $arg = shift;
+ my $num = shift;
if (!defined($::client_id)) {
print "You must first ``connect''.\n";
return;
}
- if (!defined($arg) || scalar($arg) < 1 || scalar($arg) > 32) {
- $arg = 32;
+ if (!defined($num) || scalar($num) < 1 || scalar($num) > 32) {
+ $num = 32;
}
- print "Preallocating $arg inodes...\n";
- my $packed = pack("LLx128", $::client_id, $arg);
- # client id, alloc, inodes[32]
+ print "Preallocating $num objects...\n";
+ # client id, alloc, id[32]
+ my $packed = pack("LLx128", $::client_id, $num);
my $rc = ioctl(DEV_OBD, &OBD_IOC_PREALLOCATE, $packed);
print STDERR "ioctl failed: $!\n";
} elsif ($rc eq "0 but true") {
my $alloc = unpack("x4L", $packed);
- my @inodes = unpack("x8L32", $packed);
+ my @ids = unpack("x8L32", $packed);
my $i;
- print "Got $alloc inodes: ";
- foreach $i (@inodes) {
+ print "Got $alloc objects: ";
+ foreach $i (@ids) {
print $i . " ";
}
print "\nFinished (success)\n";
}
sub Help {
- my $arg = shift;
+ my $cmd = shift;
- if ( !$arg || !$commands{$arg} ) {
+ if ( !$cmd || !$commands{$cmd} ) {
print "Comands: ", join( ' ', @jcm_cmd_list), "\n";
} else {
- print "Usage: " . $commands{$arg}->{doc} . "\n";
+ print "Usage: " . $commands{$cmd}->{doc} . "\n";
}
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff