X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lustre%2Fobdclass%2Fobdcontrol;h=8b1ddaa93fbc7ebf3b9ba1e941975917fae5bf4b;hp=6967bdcba8531e5fb2464278fb400fe271c28e7a;hb=080b2b9ca498ab9eb81cb9886183584a2fd21a86;hpb=2ce63e7c1278fa87883b3060a7a0c4d98b5ccd15 diff --git a/lustre/obdclass/obdcontrol b/lustre/obdclass/obdcontrol index 6967bdc..8b1ddaa 100755 --- a/lustre/obdclass/obdcontrol +++ b/lustre/obdclass/obdcontrol @@ -1,5 +1,19 @@ #!/usr/bin/perl +# +# This code is issued under the GNU General Public License. +# See the file COPYING in this distribution +# +# Copyright (C) 1998, Stelias Computing +# +# Modified for InterMezzo from Gordian's HSM bcache device/jcm module +# Copyright (C) 1999, Carnegie Mellon University +# +# Derived from InterMezzo's incontrol, modified for OBD's +# Copyright (C) 1999, Stelias Computing +# +# + #use strict; BEGIN { require "asm/errno.ph" }; BEGIN { require "asm/ioctl.ph" }; @@ -9,12 +23,63 @@ eval 'sub OBD_IOC_CREATE () { &_IOC(2, ord(\'f\'), 3, 4);}' unless defined(&OBD_IOC_CREATE); eval 'sub OBD_IOC_SETUP () { &_IOC(1, ord(\'f\'), 4, 4);}' unless defined(&OBD_IOC_SETUP); -eval 'sub OBD_IOC_SYNC () { &_IOC(2, ord(\'f\'), 5, 4);}' unless - defined(&OBD_IOC_SYNC); +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_DESTROY); +eval 'sub OBD_IOC_PREALLOCATE () { &_IOC(3, ord(\'f\'), 7, 4);}' unless + defined(&OBD_IOC_PREALLOCATE); eval 'sub OBD_IOC_DEC_USE_COUNT () { &_IOC(0, ord(\'f\'), 8, 0);}' unless defined(&OBD_IOC_DEC_USE_COUNT); +eval 'sub OBD_IOC_SETATTR () { &_IOC(1, ord(\'f\'), 9, 4);}' unless + defined(&OBD_IOC_SETATTR); +eval 'sub OBD_IOC_GETATTR () { &_IOC(2, ord(\'f\'), 10, 4);}' unless + defined(&OBD_IOC_GETATTR); +eval 'sub OBD_IOC_READ () { &_IOC(3, ord(\'f\'), 11, 4);}' unless + defined(&OBD_IOC_READ); +eval 'sub OBD_IOC_WRITE () { &_IOC(3, ord(\'f\'), 12, 4);}' unless + defined(&OBD_IOC_WRITE); +eval 'sub OBD_IOC_CONNECT () { &_IOC(2, ord(\'f\'), 13, 4);}' unless + defined(&OBD_IOC_CONNECT); +eval 'sub OBD_IOC_DISCONNECT () { &_IOC(1, ord(\'f\'), 14, 4);}' unless + defined(&OBD_IOC_DISCONNECT); +eval 'sub OBD_IOC_STATFS () { &_IOC(3, ord(\'f\'), 15, 4);}' unless + defined(&OBD_IOC_STATFS); +eval 'sub OBD_IOC_SYNC () { &_IOC(2, ord(\'f\'), 16, 4);}' unless + defined(&OBD_IOC_SYNC); +eval 'sub OBD_IOC_READ2 () { &_IOC(3, ord(\'f\'), 17, 4);}' unless + defined(&OBD_IOC_READ2); +eval 'sub OBD_IOC_FORMATOBD () { &_IOC(3, ord(\'f\'), 18, 4);}' unless + defined(&OBD_IOC_FORMATOBD); +eval 'sub OBD_IOC_PARTITION () { &_IOC(3, ord(\'f\'), 19, 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 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 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); use Getopt::Long; use File::stat; @@ -23,31 +88,47 @@ use Carp; use Term::ReadLine; use IO::Handle; -my ($device, $filesystem); -# startup options (I'll replace these when I have some to replace with) -GetOptions("device=s" => \$device, "fs=s" => $filesystem) || die "Getoptions"; -$device = "/dev/obd" unless $device; -$filesystem = "/dev/loop0" unless $filesystem; +my ($file); + +GetOptions("f!" => \$file, "device=s" => \$::device, ) || die "Getoptions"; -# get a console for the app -my $term = new Term::ReadLine 'obdcontrol '; -my $attribs = $term->Attribs; -$term->ornaments('md,me,,'); # bold face prompt -# make sure stdout is not buffered -STDOUT->autoflush(1); +# get a console for the app my $line; my $command; my $arg; my %commands = - ('create' => {func => "Create", doc => "create: creates a new inode"}, - 'setup' => {func => "Setup", doc => "setup: initializes the environment"}, + ('device' => {func => "Device", doc => "device : open another OBD device"}, + 'create' => {func => "Create", doc => "create: creates a new inode"}, + 'attach' => {func => "Attach", doc => "attach {ext2_obd | snap_obd snapdev snapidx tableno | scsi_obd adapter bus tid lun}"}, # + 'detach' => {func => "Detach", doc => "detach this device"}, + 'testext2iterator' => {func => "TestExt2Iterator", doc => "test ext2 iterator function"}, + 'snapset' => {func => "SnapSetTable", doc => "snapset : set the table (created with snaptable) as table #tableno" }, + 'snapprint' => {func => "SnapPrint", doc => "snapprint : 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 : copy objects"}, + 'migrate' => {func => "Migrate", doc => "migrate : migrate data from one object to another"}, + '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 [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"}, - 'dec_use_count' => {func => "Decusecount", doc => "decreases the module use count so that it can be unmounted following an oops"}, + 'destroy' => {func => "Destroy", doc => "destroy : destroys an inode"}, + '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 [offset]"}, + 'fsread' => {func => "Read2", doc => "read [offset]"}, + 'write' => {func => "Write", doc => "write "}, + 'setattr' => {func => "Setattr", doc => "setattr [mode [uid [gid [size [atime [mtime [ctime]]]]]]]"}, + 'getattr' => {func => "Getattr", doc => "getattr : displays inode object attributes"}, + 'preallocate' => {func => "Preallocate", doc => "preallocate [num]: requests preallocation of num inodes."}, + 'statfs' => {func => "Statfs", doc => "statfs: filesystem status information"}, 'help' => {func => \&Help, doc => "help: this message"}, 'quit' => {func => \&Quit, doc => "see \"exit\""}, 'exit' => {func => \&Quit, doc => "see \"quit\""} @@ -58,17 +139,44 @@ my %commands = # my @jcm_cmd_list = keys %commands; -$attribs->{attempted_completion_function} = \&completeme; -#------------------------------------------------------------------------------ -# Open the device, as we need an FD for the ioctl -sysopen(DEV_OBD, $device, 0); +my $term, $attribs; + + +# Get going.... + +Device($::device); -if (!defined($::st = stat($filesystem))) { - die "Unable to stat $filesystem.\n"; +sub readl { + if ( $file ) { + my $str = ; + chop($str); + return $str; + } else { + return $term->readline(@_); + } } -# Get on with the show -process_line(); + + +if ( $file ) { + while ( ) { + print $_; + execute_line($_); + } + exit 0; +} else { + $term = new Term::ReadLine 'obdcontrol '; + $attribs = $term->Attribs; + $attribs->{attempted_completion_function} = \&completeme; + $term->ornaments('md,me,,'); # bold face prompt + + # make sure stdout is not buffered + STDOUT->autoflush(1); + + + # Get on with the show + process_line(); +} #------------------------------------------------------------------------------ sub completeme { @@ -105,7 +213,12 @@ sub execute_line { my @arg = split(' ', $line); my $word = shift @arg; - my $cmd = find_command($word); + my $cmd; + if ( $file ) { + $cmd = $word; + } else { + $cmd = find_command($word); + } unless ($cmd) { printf STDERR "$word: No such command, or not unique.\n"; return (-1); @@ -119,9 +232,460 @@ sub execute_line { return (&{$commands{$cmd}->{func}}(@arg)); } + +# 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"; +} + + + +sub Attach { + my $err = 0; + my $type = shift; + my $data; + my $datalen = 0; + + if ( ! $type ) { + print "error: missing type\n"; +usage: + print "usage: attach {ext2_obd | snap_obd}\n"; # XXX add scsi_obd later + return; + } + + if ($type eq "scsi_obd" ) { + my $adapter = shift; + my $bus = shift; + my $tid = shift; + my $lun = shift; + + $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") { + my $basedev = shift; + # $basedev = "/dev/loop0" unless $basedev; + + if (!defined($::st = stat($basedev))) { + die "Unable to stat $basedev.\n"; + } + } else { + print "error: unknown attach type $type\n"; + goto usage; + } + + 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); + + 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 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); + my $add = pack("p", $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); + my $add = pack("p", $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 $rc.\n"; + } +} + + +# XXX the parameter to snaprestore SHOULD be the snapshot number of the +# snapshot to be restored, and this routine should handle all of the +# removal of intervening snapshots and changing the snaptable to have +# the "restored" snapshot as current and move the previous current. +sub SnapRestore { + if (!defined($::client_id)) { + print "You must first ``connect''.\n"; + return; + } + + my $err = 0; + my $type = "snap_obd"; + my $prevcurrent = shift; + + $data = pack("i", $prevcurrent); # where previous current snapshot now lives + $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("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 "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("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}) { + $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("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 ( ) { + 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 = pack("i", $size); + my $datalen = 4; + + my $packed = pack("ip", $datalen, $data); + my $rc = ioctl(DEV_OBD, &OBD_IOC_FORMATOBD, $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 Partition { + my $err = 0; + my $partno = shift; + my $size = shift; + my $data = pack("ii", $partno, $size); + my $datalen = 2 * 4; + + my $packed = pack("ip", $datalen, $data); + my $rc = ioctl(DEV_OBD, &OBD_IOC_PARTITION, $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 Setup { my $err = 0; - my $packed = pack("L", $::st->rdev()); + my $type = shift; + my $data; + my $datalen = 0; + + $type = "ext2_obd" unless $type; + + if ( $type eq "ext2_obd" ) { + my $dev = shift; + $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, $packed); if (!defined $rc) { @@ -133,22 +697,83 @@ sub Setup { } } +sub Cleanup { + my $err = "0"; + my $rc = ioctl(DEV_OBD, &OBD_IOC_CLEANUP, $err); + + if (!defined $rc) { + print STDERR "ioctl failed: $!\n"; + } elsif ($rc eq "0 but true") { + print "Finished (success)\n"; + $::client_id = 0; + } else { + print "ioctl returned error code $rc.\n"; + } +} + + +sub Connect { + my $rc; + + my $packed = ""; + $rc = ioctl(DEV_OBD, &OBD_IOC_CONNECT, $packed); + $id = unpack("I", $packed); + + if (!defined $rc) { + print STDERR "ioctl failed: $!\n"; + } elsif ($rc eq "0 but true") { + $::client_id = $id; + print "Client ID : $id\n"; + print "Finished (success)\n"; + } else { + print "ioctl returned error code $rc.\n"; + } +} + +sub Disconnect { + my $id = shift; + + if (!defined($id)) { + $id = $::client_id; + } + + if (!defined($id)) { + print "syntax: disconnect [client ID]\n"; + print "When client ID is not given, the last valid client ID to be returned by a\n"; + print "connect command this session is used; there is no such ID.\n"; + return; + } + + my $packed = pack("L", $id); + my $rc = ioctl(DEV_OBD, &OBD_IOC_DISCONNECT, $packed); + + if (!defined $rc) { + print STDERR "ioctl failed: $!\n"; + } elsif ($rc eq "0 but true") { + $::client_id = undef; + print "Finished (success)\n"; + } else { + print "ioctl returned error code $rc.\n"; + } +} + sub Create { my $arg = shift; my $quiet = shift; - my $err = "0"; my $rc; + my $prealloc = 0; - if (defined($quiet) && !($quiet eq "quiet")) { + if (defined($quiet) && $quiet ne "quiet") { print "syntax: create [number of objects [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, $err); + $rc = ioctl(DEV_OBD, &OBD_IOC_CREATE, $packed); if (!defined($quiet)) { - my $ino = unpack("L", $err); + my $ino = unpack("L", $packed); print "Created object #$ino.\n"; } } else { @@ -156,11 +781,13 @@ sub Create { print "Creating " . scalar($arg) . " objects...\n"; for ($i = 0; $i < scalar($arg); $i++) { - $rc = ioctl(DEV_OBD, &OBD_IOC_CREATE, $err); - if (!($rc eq "0 but true") || $err < 0) { + $rc = ioctl(DEV_OBD, &OBD_IOC_CREATE, $packed); + my $ino = unpack("L", $packed); + if ($rc ne "0 but true") { last; + $packed = pack("IL", $::client_id, $prealloc); } elsif (!defined($quiet)) { - my $ino = unpack("L", $err); + $packed = pack("IL", $::client_id, $prealloc); print "Created object #$ino.\n"; } } @@ -189,6 +816,11 @@ sub Sync { } sub Destroy { + if (!defined($::client_id)) { + print "You must first ``connect''.\n"; + return; + } + my $arg = shift; if (!defined($arg) || scalar($arg) < 1) { @@ -197,7 +829,7 @@ sub Destroy { } print "Destroying object $arg...\n"; - my $packed = pack("L", $arg); + my $packed = pack("IL", $::client_id, $arg); my $rc = ioctl(DEV_OBD, &OBD_IOC_DESTROY, $packed); if (!defined $rc) { @@ -209,27 +841,284 @@ sub Destroy { } } +sub Getattr { + if (!defined($::client_id)) { + print "You must first ``connect''.\n"; + return; + } + + my $inode = shift; + + if (!defined($inode) || scalar($inode) < 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 $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"; + } else { + print "ioctl returned error code $rc.\n"; + } +} + +sub Setattr { + if (!defined($::client_id)) { + print "You must first ``connect''.\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 $ctime = shift; + + if (defined($uid)) { + $valid |= &ATTR_UID; + } + if (defined($gid)) { + $valid |= &ATTR_GID; + } + if (defined($size)) { + $valid |= &ATTR_SIZE; + } + if (defined($atime)) { + $valid |= &ATTR_ATIME; + } + if (defined($mtime)) { + $valid |= &ATTR_MTIME; + } + if (defined($ctime)) { + $valid |= &ATTR_CTIME; + } + if (defined($mode)) { + $valid |= &ATTR_MODE; + } + + if (!defined($inode) || scalar($inode) < 1) { + print "invalid arguments; type \"help setattr\" for a synopsis\n"; + return; + } + + #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); + my $rc = ioctl(DEV_OBD, &OBD_IOC_SETATTR, $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 $rc.\n"; + } +} + +sub Read { + if (!defined($::client_id)) { + print "You must first ``connect''.\n"; + return; + } + + my $inode = shift; + my $count = shift; + my $offset = shift; + + if (!defined($inode) || scalar($inode) < 1 || !defined($count) || + $count < 1 || (defined($offset) && $offset < 0)) { + print "invalid arguments; type \"help read\" for a synopsis\n"; + return; + } + + if (!defined($offset)) { + $offset = 0; + } + + print("Reading $count bytes starting at byte $offset from object " . + "$inode...\n"); + + # "allocate" a large enough buffer + my $buf = sprintf("%${count}s", " "); + die "suck" if (length($buf) != $count); + + # 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 $rc = ioctl(DEV_OBD, &OBD_IOC_READ, $packed); + + $retval = unpack("l", $packed); + + if (!defined $rc) { + print STDERR "ioctl failed: $!\n"; + } elsif ($rc eq "0 but true") { + if ($retval >= 0) { + print substr($buf, 0, $retval); + print "\nRead $retval of an attempted $count bytes.\n"; + print "Finished (success)\n"; + } else { + print "Finished (error $retval)\n"; + } + } else { + print "ioctl returned error code $rc.\n"; + } +} + +sub Read2 { + if (!defined($::client_id)) { + print "You must first ``connect''.\n"; + return; + } + + my $inode = shift; + my $count = shift; + my $offset = shift; + + if (!defined($inode) || scalar($inode) < 1 || !defined($count) || + $count < 1 || (defined($offset) && $offset < 0)) { + print "invalid arguments; type \"help read\" for a synopsis\n"; + return; + } + + if (!defined($offset)) { + $offset = 0; + } + + print("Reading $count bytes starting at byte $offset from object " . + "$inode...\n"); + + # "allocate" a large enough buffer + my $buf = sprintf("%${count}s", " "); + die "suck" if (length($buf) != $count); + + # 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 $rc = ioctl(DEV_OBD, &OBD_IOC_READ2, $packed); + + $retval = unpack("l", $packed); + + if (!defined $rc) { + print STDERR "ioctl failed: $!\n"; + } elsif ($rc eq "0 but true") { + if ($retval >= 0) { + print substr($buf, 0, $retval); + print "\nRead $retval of an attempted $count bytes.\n"; + print "Finished (success)\n"; + } else { + print "Finished (error $retval)\n"; + } + } else { + print "ioctl returned error code $rc.\n"; + } +} + +sub Write { + if (!defined($::client_id)) { + print "You must first ``connect''.\n"; + return; + } + + my $inode = shift; + my $offset = shift; + my $text = join(' ', @_); + my $count = length($text); + + if (!defined($inode) || scalar($inode) < 1 || !defined($offset) || + scalar($offset) < 0) { + print "invalid arguments; type \"help write\" for a synopsis\n"; + return; + } + + if (!defined($text)) { + $text = ""; + $count = 0; + } + + print("Writing $count bytes starting at byte $offset to object " . + "$inode...\n"); + + # the perl we're using doesn't support pack type Q + my $packed = pack("ILpLLL", $::client_id, $inode, $text, $count, $offset, 0); + my $rc = ioctl(DEV_OBD, &OBD_IOC_WRITE, $packed); + + $retval = unpack("l", $packed); + + if (!defined $rc) { + print STDERR "ioctl failed: $!\n"; + } elsif ($rc eq "0 but true") { + if ($retval >= 0) { + print "\nWrote $retval of an attempted $count bytes.\n"; + print "Finished (success)\n"; + } else { + print "Finished (error $retval)\n"; + } + } else { + print "ioctl returned error code $rc.\n"; + } +} + sub Preallocate { my $arg = shift; + if (!defined($::client_id)) { + print "You must first ``connect''.\n"; + return; + } + if (!defined($arg) || scalar($arg) < 1 || scalar($arg) > 32) { $arg = 32; } print "Preallocating $arg inodes...\n"; - my $packed = pack("Lx128", $arg); # alloc, inodes[32] + my $packed = pack("LLx128", $::client_id, $arg); + # client id, alloc, inodes[32] + my $rc = ioctl(DEV_OBD, &OBD_IOC_PREALLOCATE, $packed); if (!defined $rc) { print STDERR "ioctl failed: $!\n"; } elsif ($rc eq "0 but true") { - my $alloc = unpack("L", $packed); - my @inodes = unpack("L32", $packed); + my $alloc = unpack("x4L", $packed); + my @inodes = unpack("x8L32", $packed); my $i; print "Got $alloc inodes: "; - for ($i = 1; $i <= $alloc; ++$i) { - print $inodes[$i] . " "; + foreach $i (@inodes) { + print $i . " "; } print "\nFinished (success)\n"; } else { @@ -238,7 +1127,7 @@ sub Preallocate { } sub Decusecount { - my $rc = ioctl(DEV_OBD, &OBD_IOC_DEC_USE_COUNT, NULL); + my $rc = ioctl(DEV_OBD, &OBD_IOC_DEC_USE_COUNT, 0); if (!defined $rc) { print STDERR "ioctl failed: $!\n"; @@ -249,6 +1138,45 @@ sub Decusecount { } } +sub Statfs { + if (!defined($::client_id)) { + print "You must first ``connect''.\n"; + return; + } + + # struct statfs { + # long f_type; + # long f_bsize; + # long f_blocks; + # long f_bfree; + # long f_bavail; + # long f_files; + # long f_ffree; + # __kernel_fsid_t f_fsid; (64 bits) + # long f_namelen; + # long f_spare[6]; + # }; + + my $packed = pack("LLLLLLLIILL6", $::client_id, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0); + + my $rc = ioctl(DEV_OBD, &OBD_IOC_STATFS, $packed); + + if (!defined $rc) { + print STDERR "ioctl failed: $!\n"; + } elsif ($rc eq "0 but true") { + # skip both the conn_id and the fs_type in the buffer + my ($bsize, $blocks, $bfree, $bavail, $files, $ffree) = + unpack("x4x4LLLLLL", $packed); + print("$bsize byte blocks: $blocks, " . ($blocks - $bfree) . " used, " . + "$bfree free ($bavail available).\n"); + print "$files files, " . ($files - $ffree) . " used, $ffree free.\n"; + print "Finished (success)\n"; + } else { + print "ioctl returned error code $rc.\n"; + } +} + sub Help { my $arg = shift; @@ -260,5 +1188,9 @@ sub Help { } sub Quit { + if ($::client_id) { + print "Disconnecting active session ($::client_id)..."; + Disconnect($::client_id); + } exit; }