my $command;
my $arg;
+my @procsysobd_objects = ('debug', 'index', 'reset', 'trace', 'vars');
+
my %commands =
- ('device' => {func => "Device", doc => "device <dev>: open another OBD device"},
+ ('status' => {func => "Status", doc => "status: show obd device status"},
+ 'procsys' => {func => "Procsys", doc => "procsys <file> <value> (set /proc/sys/obd configuration)"},
+ 'shell' => {func => "Shell", doc => "shell <shell-command>: execute shell-commands"},
+ 'script' => {func => "Script", doc => "script <filename>: read and execute commands from a file"},
+ 'insmod' => {func => "Insmod", doc => "insmod <module>: insert kernel module"},
+ 'rmmod' => {func => "Rmmod", doc => "rmmod <module>: insert kernel module"},
+ 'lsmod' => {func => "Lsmod", doc => "lsmod <module>: list kernel modules"},
+ 'device' => {func => "Device", doc => "device <dev>: open another OBD device"},
+ 'close' => {func => "Close", doc => "close <dev>: close OBD device"},
'create' => {func => "Create", doc => "create [<num> [<mode> [quiet]]]: create new object(s) (files, unless mode is given)"},
'attach' => {func => "Attach", doc => "attach { obdext2 | obdsnap snapdev snapidx tableno | obdscsi adapter bus tid lun }: attach this minor device to the specified driver" },
'detach' => {func => "Detach", doc => "detach this minor device"},
# Get going....
-Device($::device);
+#Device($::device);
sub readl {
if ( $file ) {
if ( $file ) {
while ( <STDIN> ) {
print $_;
- execute_line($_);
+ my $rc = execute_line($_);
+ if ($rc != 0) { last; }
}
exit 0;
} else {
sub completeme {
my ($text, $line, $start, $end) = @_;
if (substr($line, 0, $start) =~ /^\s*$/) {
- $attribs->{completion_word} = \@jcm_cmd_list;
- return $term->completion_matches($text,
- $attribs->{'list_completion_function'});
+ if ($] < 5.6) { # PErl version is less than 5.6.0
+ return (exists $commands{$text}) ? $text : 0;
+#Above line doesn't perform command completion, but
+#perl5.005 Term-ReadLine lacks support for completion matching
+#and perl5.6.0 requires glibc2.2.2 that won't run under Redhat6.2......sigh.
+ }
+ else {
+ $attribs->{completion_word} = \@jcm_cmd_list;
+ return $term->completion_matches($text,
+ $attribs->{'list_completion_function'});
+ }
}
}
return (&{$commands{$cmd}->{func}}(@cmdline));
}
+my %opendevfds = ();
# 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 ) { # first time ever
+ $device = '/dev/obd0';
+ }
+
+ if (($device) && ($::device ne $device)) {
+ local *NEW_OBD;
+ my $newfd;
+
+ if ($::client_id) {
+ print "Disconnecting active session ($::client_id)...";
+ Disconnect($::client_id);
+ }
+
+ if ($opendevfds{$device}) {
+ $::dev_obd = $opendevfds{$device};
+ }
+ else {
+ # Open the device, as we need an FD for the ioctl
+ if (!sysopen(NEW_OBD, $device, 0)) {
+ print "Cannot open $device. Did you insert the obdclass module ?\n";
+ return -1;
+ }
+ print "Openend device $device\n";
+ $opendevfds{$device} = *NEW_OBD;
+ $::dev_obd = *NEW_OBD;
+ }
+ $::device = $device;
+ }
+ print "Current device is $::device\n";
+ return 0;
+}
+
+sub Close {
+ my $device = shift;
+ my $fd2close;
+
+ if ( ! $device && ! $::device ) { # first time ever
+ print "Nothing to close\n";
+ return -1;
+ }
+
+ if ( ! $device ) {
+ $device = $::device;
+ }
+
+ if ($::device eq $device) {
+ if ($::client_id) {
+ print "Disconnecting active session ($::client_id)...";
+ Disconnect($::client_id);
+ }
+ }
+
+ $fd2close = $opendevfds{$device};
+ if ($fd2close) { # XXXX something wrong in this if statement
+ close ($fd2close);
+ $opendevfds{$device} = undef;
+ print "Closed device $device\n";
+ }
+ else {
+ print "Device $device was not open\n";
+ return -1;
+ }
+
+ if ($::device eq $device) {
+ $::dev_obd = undef;
+ $::device = undef;
+ }
+ print "No current device. You just closed the current device ($device).\n";
+ return 0;
+}
+
+sub Script {
+ my $cmdfilename = shift;
+ my $rc = 0;
+ if ( ! $cmdfilename ) {
+ print "please specify a command file name\n";
+ return -1;
+ }
+ if (! open(CMDF, $cmdfilename)) {
+ print "Cannot open $cmdfilename: $!\n";
+ return -1;
+ }
+ while (<CMDF>) {
+ if (/^#/) {
+ next;
+ }
+ print "execute> $_";
+ $rc = execute_line($_);
+ if ($rc != 0) {
+ print "Something went wrong .......command exit status: $rc\n";
+ last;
+ }
+ }
+ close(CMDF);
+ return $rc;
+}
+
+sub Shell {
+ my $user_shell=$ENV{'SHELL'};
+ print "% $user_shell -c '@_'\n";
+ if ( ! @_ ) {
+ print "please specify a shell command\n";
+ return;
}
- if (! $device ) {
- $device = "/dev/obd0";
+ system("$user_shell -c '@_'");
+ return ($? >> 8);
+}
+
+sub Status {
+ my $oldfh = select(STDOUT);
+ $| = 1;
+
+ system('cat /proc/lustre/obd/*/status');
+ my $rc = ($? >> 8);
+
+ select($oldfh);
+ $| = 0;
+
+ return $rc;
+}
+
+sub Procsys {
+ my $set_sysobd = shift;
+ my $value = shift;
+
+ foreach $i (0 .. $#procsysobd_objects) {
+ my $sysobd = $procsysobd_objects[$i];
+
+ if (defined $set_sysobd) {
+ if ($sysobd ne $set_sysobd) { next; }
+
+ if (defined $value) { # set this one
+ system("echo \"$value\" > /proc/sys/obd/$sysobd");
+ }
+ system("echo \"/proc/sys/obd/$sysobd:\"; cat /proc/sys/obd/$sysobd");
+ last;
+ }
+ else {
+ system("echo \"/proc/sys/obd/$sysobd:\"; cat /proc/sys/obd/$sysobd");
+ }
}
- $::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 $device\n";
+ return ($? >> 8);
+}
+
+sub Insmod {
+ my $module = shift;
+ system("insmod $module");
+ return ($? >> 8);
+}
+
+sub Rmmod {
+ my $module = shift;
+ system("rmmod $module");
+ return ($? >> 8);
}
+sub Lsmod {
+ my $module = shift;
+ system("lsmod $module");
+ return ($? >> 8);
+}
sub Attach {
my $err = 0;
if ( ! $type ) {
print "error: missing type\n";
usage:
- print "usage: attach {obdext2 | obdsnap | obdscsi}\n";
- return;
+ print "usage: attach {obdext2 | obdsnap | obdscsi | obdtrace }\n";
+ return -1;
}
if ($type eq "obdscsi" ) {
$datalen = 3 * 4;
} elsif ($type eq "obdext2") {
$data = pack("i", 4711); # bogus data
- $datalen = 0;
+ $datalen = 4;
+ } elsif ($type eq "obdtrace") {
+ $data = pack("i", 4711); # bogus data
+ $datalen = 4;
} else {
print "error: unknown attach type $type\n";
goto usage;
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 $::dev_obd) {
+ print "No current device.\n";
+ return -1;
+ }
+ my $rc = ioctl($::dev_obd, &OBD_IOC_ATTACH, $packed);
if (!defined $rc) {
print STDERR "ioctl failed: $!\n";
+ return -1;
} elsif ($rc eq "0 but true") {
print "Finished (success)\n";
+ return 0;
} else {
print "ioctl returned error code $rc.\n";
+ return -1;
}
}
sub Detach {
my $err = 0;
my $data = "";
- my $rc = ioctl(DEV_OBD, &OBD_IOC_DETACH, $data);
+
+ if (! defined $::dev_obd) {
+ print "No current device.\n";
+ return -1;
+ }
+
+ my $rc = ioctl($::dev_obd, &OBD_IOC_DETACH, $data);
if (!defined $rc) {
print STDERR "ioctl failed: $!\n";
+ return -1;
} elsif ($rc eq "0 but true") {
print "Finished (success)\n";
+ return 0;
} else {
print "ioctl returned error code $rc.\n";
+ return -1;
}
}
my $cl = length($data);
print "type $type (len $len), datalen $datalen ($cl)\n";
my $packed = pack("Lipip", $::client_id, length($type), $type, $datalen, $data);
+ if (! defined $::dev_obd) {
+ print "No current device.\n";
+ return -1;
+ }
- my $rc = ioctl(DEV_OBD, &OBD_EXT2_RUNIT, $packed);
+ my $rc = ioctl($::dev_obd, &OBD_EXT2_RUNIT, $packed);
if (!defined $rc) {
print STDERR "ioctl failed: $!\n";
+ return -1;
} elsif ($rc eq "0 but true") {
print "Finished (success)\n";
+ return 0;
} else {
print "ioctl returned error code $rc.\n";
+ return -1;
}
}
sub SnapDelete {
if (!defined($::client_id)) {
print "You must first ``connect''.\n";
- return;
+ return -1;
}
my $err = 0;
# 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 $::dev_obd) {
+ print "No current device.\n";
+ return -1;
+ }
+
+ my $rc = ioctl($::dev_obd, &OBD_SNAP_DELETE, $packed);
if (!defined $rc) {
print STDERR "ioctl failed: $!\n";
+ return -1;
} elsif ($rc eq "0 but true") {
print "Finished (success)\n";
+ return 0;
} else {
print "ioctl returned error code $rc.\n";
+ return -1;
}
}
# don't do anything until connected
if (!defined($::client_id)) {
print "You must first ``connect''.\n";
- return;
+ return -1;
}
if ( ! $snaptable || ! defined $restoreto ) {
print "Usage: snaprestore \"restore to slot\" \"snaptable\" \"tableno\"\n";
- return;
+ return -1;
}
if ( ! -f $snaptable ) {
print "Table $snaptable doesn't exist\n";
- return;
+ return -1;
}
my $table = ReadSnapShotTable($snaptable);
if ( ! defined $table->{0} || ! defined $restoretime ) {
PrintSnapShotTable($table);
print "No current or $restoreto slot in this table\n";
- return;
+ return -1;
}
my $currentindex = $table->{0};
if ( $table->{$restoretime} == $currentindex ) {
print "You should not restore to the current snapshot\n";
- return;
+ return -1;
}
# swap the entries for 0 and $restoreto
my $len = length($type);
my $cl = length($data);
my $packed = pack("Lipip", $::client_id, length($type), $type, $datalen, $data);
+ if (! defined $::dev_obd) {
+ print "No current device.\n";
+ return -1;
+ }
- my $rc = ioctl(DEV_OBD, &OBD_SNAP_RESTORE, $packed);
+ my $rc = ioctl($::dev_obd, &OBD_SNAP_RESTORE, $packed);
if (!defined $rc) {
print STDERR "ioctl failed: $!\n";
+ return -1;
} elsif ($rc eq "0 but true") {
print "Snaprestore finished (success)\n";
delete $table->{$restoretime} if defined $restoretime;
# set it in the kernel
SnapSetTable($tableno, $snaptable);
# PrintSnapShotTable($table);
-
+ return 0;
} else {
print "ioctl returned error code $rc.\n";
+ return -1;
}
}
my $cl = length($data);
print "type $type (len $len), datalen $datalen ($cl)\n";
my $packed = pack("Lipip", $::client_id, length($type), $type, $datalen, $data);
+ if (! defined $::dev_obd) {
+ print "No current device.\n";
+ return -1;
+ }
- my $rc = ioctl(DEV_OBD, &OBD_SNAP_PRINTTABLE, $packed);
+ my $rc = ioctl($::dev_obd, &OBD_SNAP_PRINTTABLE, $packed);
if (!defined $rc) {
print STDERR "ioctl failed: $!\n";
+ return -1;
} elsif ($rc eq "0 but true") {
print "Finished (success)\n";
+ return 0;
} else {
print "ioctl returned error code $rc.\n";
+ return -1;
}
}
if ( ! -f $file ) {
print "No such file $file\n";
+ return -1;
}
$table = ReadSnapShotTable($file);
if ( ! defined $table->{0} ) {
print "No current snapshot in table! First make one\n";
- return ;
+ return -1;
}
$data = pack("ii", $snaptableno, $snapcount);
$datalen = 2 * 4;
my $cl = length($data);
print "type $type (len $len), datalen $datalen ($cl)\n";
my $packed = pack("Lipip", $::client_id, length($type), $type, $datalen, $data);
+ if (! defined $::dev_obd) {
+ print "No current device.\n";
+ return -1;
+ }
- my $rc = ioctl(DEV_OBD, &OBD_SNAP_SETTABLE, $packed);
+ my $rc = ioctl($::dev_obd, &OBD_SNAP_SETTABLE, $packed);
if (!defined $rc) {
print STDERR "ioctl failed: $!\n";
+ return -1;
} elsif ($rc eq "0 but true") {
print "Finished (success)\n";
+ return 0;
} else {
print "ioctl returned error code $rc.\n";
+ return -1;
}
}
unless ( $ok eq "n" ) {
WriteSnapShotTable($file, $table);
}
+ return 0;
}
sub SnapFindTimeFromIdx {
# 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);
+ if (! defined $::dev_obd) {
+ print "No current device.\n";
+ return -1;
+ }
- my $rc = ioctl(DEV_OBD, &OBD_IOC_COPY, $packed);
+ my $rc = ioctl($::dev_obd, &OBD_IOC_COPY, $packed);
if (!defined $rc) {
print STDERR "ioctl failed: $!\n";
+ return -1;
} elsif ($rc eq "0 but true") {
print "Finished (success)\n";
+ return 0;
} else {
print "ioctl returned error code $rc.\n";
+ return -1;
}
}
# 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);
+ if (! defined $::dev_obd) {
+ print "No current device.\n";
+ return -1;
+ }
- my $rc = ioctl(DEV_OBD, &OBD_IOC_MIGR, $packed);
+ my $rc = ioctl($::dev_obd, &OBD_IOC_MIGR, $packed);
if (!defined $rc) {
print STDERR "ioctl failed: $!\n";
+ return -1;
} elsif ($rc eq "0 but true") {
print "Finished (success)\n";
+ return 0;
} else {
print "ioctl returned error code $rc.\n";
+ return -1;
}
}
my $datalen = 4;
my $packed = pack("ip", $datalen, $data);
- my $rc = ioctl(DEV_OBD, &OBD_IOC_FORMATOBD, $packed);
+ if (! defined $::dev_obd) {
+ print "No current device.\n";
+ return -1;
+ }
+ my $rc = ioctl($::dev_obd, &OBD_IOC_FORMATOBD, $packed);
if (!defined $rc) {
print STDERR "ioctl failed: $!\n";
+ return -1;
} elsif ($rc eq "0 but true") {
print "Finished (success)\n";
+ return 0;
} else {
print "ioctl returned error code $rc.\n";
+ return -1;
}
}
my $datalen = 2 * 4;
my $packed = pack("ip", $datalen, $data);
- my $rc = ioctl(DEV_OBD, &OBD_IOC_PARTITION, $packed);
+ if (! defined $::dev_obd) {
+ print "No current device.\n";
+ return -1;
+ }
+ my $rc = ioctl($::dev_obd, &OBD_IOC_PARTITION, $packed);
if (!defined $rc) {
print STDERR "ioctl failed: $!\n";
+ return -1;
} elsif ($rc eq "0 but true") {
print "Finished (success)\n";
+ return 0;
} else {
print "ioctl returned error code $rc.\n";
+ return -1;
}
}
# by type here
if ($arg && !defined($::st = stat($arg))) {
- print "$dev is not a valid device\n";
- return;
+ print "$arg is not a valid device\n";
+ return -1;
}
if ( $arg ) {
- $dev = $::st->rdev() unless $dev;
- $data = pack("i", $dev);
- $datalen = 4;
+ $data = $arg;
+ $datalen = length($arg)+1; # need null character also
}
my $packed = pack("ip", $datalen, $data);
- my $rc = ioctl(DEV_OBD, &OBD_IOC_SETUP, $packed);
+ if (! defined $::dev_obd) {
+ print "No current device.\n";
+ return -1;
+ }
+ my $rc = ioctl($::dev_obd, &OBD_IOC_SETUP, $packed);
if (!defined $rc) {
print STDERR "ioctl failed: $!\n";
+ return -1;
} elsif ($rc eq "0 but true") {
print "Finished (success)\n";
+ return 0;
} else {
print "ioctl returned error code $rc.\n";
+ return -1;
}
}
sub Cleanup {
my $err = "0";
- my $rc = ioctl(DEV_OBD, &OBD_IOC_CLEANUP, $err);
+ if (! defined $::dev_obd) {
+ print "No current device.\n";
+ return -1;
+ }
+ my $rc = ioctl($::dev_obd, &OBD_IOC_CLEANUP, $err);
if (!defined $rc) {
print STDERR "ioctl failed: $!\n";
+ return -1;
} elsif ($rc eq "0 but true") {
print "Finished (success)\n";
$::client_id = 0;
+ return 0;
} else {
print "ioctl returned error code $rc.\n";
+ return -1;
}
}
my $rc;
my $packed = "";
- $rc = ioctl(DEV_OBD, &OBD_IOC_CONNECT, $packed);
+ if (! defined $::dev_obd) {
+ print "No current device.\n";
+ return -1;
+ }
+ $rc = ioctl($::dev_obd, &OBD_IOC_CONNECT, $packed);
$id = unpack("I", $packed);
if (!defined $rc) {
print STDERR "ioctl failed: $!\n";
+ return -1;
} elsif ($rc eq "0 but true") {
$::client_id = $id;
print "Client ID : $id\n";
print "Finished (success)\n";
+ return 0;
} else {
print "ioctl returned error code $rc.\n";
+ return -1;
}
}
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;
+ return -1;
}
my $packed = pack("L", $id);
- my $rc = ioctl(DEV_OBD, &OBD_IOC_DISCONNECT, $packed);
+ if (! defined $::dev_obd) {
+ print "No current device.\n";
+ return -1;
+ }
+ my $rc = ioctl($::dev_obd, &OBD_IOC_DISCONNECT, $packed);
if (!defined $rc) {
print STDERR "ioctl failed: $!\n";
+ return -1;
} elsif ($rc eq "0 but true") {
$::client_id = undef;
print "Finished (success)\n";
+ return 0;
} else {
print "ioctl returned error code $rc.\n";
+ return -1;
}
}
sub Create {
if (!defined($::client_id)) {
print "You must first ``connect''.\n";
- return;
+ return -1;
}
my $num = shift;
if (scalar($num) < 1 || defined($quiet) && $quiet ne "quiet") {
print "usage: create [<number of objects> [<mode> [quiet]]]\n";
- return;
+ return -1;
}
my $i;
$obdo->{valid} = &OBD_MD_FLMODE;
my $packed = pack("I", $::client_id) . obdo_pack($obdo);
- $rc = ioctl(DEV_OBD, &OBD_IOC_CREATE, $packed);
+ if (! defined $::dev_obd) {
+ print "No current device.\n";
+ return -1;
+ }
+ $rc = ioctl($::dev_obd, &OBD_IOC_CREATE, $packed);
if ($rc ne "0 but true") {
last;
} elsif (!defined($quiet)) {
if (!defined $rc) {
print STDERR "ioctl failed: $!\n";
+ return -1;
} elsif ($rc eq "0 but true") {
print "Finished (success)\n";
+ return 0;
} else {
print "ioctl returned error code $rc.\n";
+ return -1;
}
}
sub Sync {
my $err = "0";
- my $rc = ioctl(DEV_OBD, &OBD_IOC_SYNC, $err);
+ if (! defined $::dev_obd) {
+ print "No current device.\n";
+ return -1;
+ }
+ my $rc = ioctl($::dev_obd, &OBD_IOC_SYNC, $err);
if (!defined $rc) {
print STDERR "ioctl failed: $!\n";
+ return -1;
} elsif ($rc eq "0 but true") {
print "Finished (success)\n";
+ return 0;
} else {
print "ioctl returned error code $rc.\n";
+ return -1;
}
}
sub Destroy {
if (!defined($::client_id)) {
print "You must first ``connect''.\n";
- return;
+ return -1;
}
my $id = shift;
if (!defined($id) || scalar($id) < 1) {
print "usage: destroy <object number>\n";
- return;
+ return -1;
}
print "Destroying object $id...\n";
my $packed = pack("IL", $::client_id, $id);
- my $rc = ioctl(DEV_OBD, &OBD_IOC_DESTROY, $packed);
+ if (! defined $::dev_obd) {
+ print "No current device.\n";
+ return -1;
+ }
+ my $rc = ioctl($::dev_obd, &OBD_IOC_DESTROY, $packed);
if (!defined $rc) {
print STDERR "ioctl failed: $!\n";
+ return -1;
} elsif ($rc eq "0 but true") {
print "Finished (success)\n";
+ return 0;
} else {
print "ioctl returned error code $rc.\n";
+ return -1;
}
}
sub Getattr {
if (!defined($::client_id)) {
print "You must first ``connect''.\n";
- return;
+ return -1;
}
my $id = shift;
if (!defined($id) || scalar($id) < 1) {
print "invalid arguments; type \"help getattr\" for a synopsis\n";
- return;
+ return -1;
}
# see Setattr
$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 $::dev_obd) {
+ print "No current device.\n";
+ return -1;
+ }
+ my $rc = ioctl($::dev_obd, &OBD_IOC_GETATTR, $packed);
if (!defined $rc) {
print STDERR "ioctl failed: $!\n";
+ return -1;
} elsif ($rc eq "0 but true") {
$obdo = obdo_unpack($packed, 4);
obdo_print($obdo);
+ return 0;
} else {
print "ioctl returned error code $rc.\n";
+ return -1;
}
}
sub Setattr {
if (!defined($::client_id)) {
print "You must first ``connect''.\n";
- return;
+ return -1;
}
my $id = shift;
if (!defined($id) || scalar($id) < 1) {
print "invalid arguments; type \"help setattr\" for a synopsis\n";
- return;
+ return -1;
}
# XXX we do not currently set all of the fields in the obdo
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 $::dev_obd) {
+ print "No current device.\n";
+ return -1;
+ }
+ my $rc = ioctl($::dev_obd, &OBD_IOC_SETATTR, $packed);
if (!defined $rc) {
print STDERR "ioctl failed: $!\n";
+ return -1;
} elsif ($rc eq "0 but true") {
print "Finished (success)\n";
+ return 0;
} else {
print "ioctl returned error code $rc.\n";
+ return -1;
}
}
sub Read {
if (!defined($::client_id)) {
print "You must first ``connect''.\n";
- return;
+ return -1;
}
my $id = shift;
if (!defined($id) || scalar($id) < 1 || !defined($count) ||
$count < 1 || (defined($offset) && $offset < 0)) {
print "invalid arguments; type \"help read\" for a synopsis\n";
- return;
+ return -1;
}
if (!defined($offset)) {
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);
+ if (! defined $::dev_obd) {
+ print "No current device.\n";
+ return -1;
+ }
+ my $rc = ioctl($::dev_obd, &OBD_IOC_READ, $packed);
$retval = unpack("l", $packed);
if (!defined $rc) {
print STDERR "ioctl failed: $!\n";
+ return -1;
} elsif ($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";
+ return 0;
} else {
print "Finished (error $retval)\n";
+ return $retval;
}
} else {
print "ioctl returned error code $rc.\n";
+ return -1;
}
}
sub Read2 {
if (!defined($::client_id)) {
print "You must first ``connect''.\n";
- return;
+ return -1;
}
my $id = shift;
if (!defined($id) || scalar($id) < 1 || !defined($count) ||
$count < 1 || (defined($offset) && $offset < 0)) {
print "invalid arguments; type \"help read\" for a synopsis\n";
- return;
+ return -1;
}
if (!defined($offset)) {
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);
+ if (! defined $::dev_obd) {
+ print "No current device.\n";
+ return -1;
+ }
+ my $rc = ioctl($::dev_obd, &OBD_IOC_READ2, $packed);
$retval = unpack("l", $packed);
if (!defined $rc) {
print STDERR "ioctl failed: $!\n";
+ return -1;
} elsif ($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 {
+ return 0;
+ } else {
print "Finished (error $retval)\n";
+ return $retval;
}
} else {
print "ioctl returned error code $rc.\n";
+ return -1;
}
}
sub Write {
if (!defined($::client_id)) {
print "You must first ``connect''.\n";
- return;
+ return -1;
}
my $id = shift;
if (!defined($id) || scalar($id) < 1 || !defined($offset) ||
scalar($offset) < 0) {
print "invalid arguments; type \"help write\" for a synopsis\n";
- return;
+ return -1;
}
if (!defined($text)) {
my $packed = pack("L", $::client_id) . obdo_pack($obdo) .
pack("p LL LL", $text, $count, $offset);
- my $rc = ioctl(DEV_OBD, &OBD_IOC_WRITE, $packed);
+ if (! defined $::dev_obd) {
+ print "No current device.\n";
+ return -1;
+ }
+ my $rc = ioctl($::dev_obd, &OBD_IOC_WRITE, $packed);
$retval = unpack("l", $packed);
if (!defined $rc) {
print STDERR "ioctl failed: $!\n";
+ return -1;
} elsif ($rc eq "0 but true") {
if ($retval >= 0) {
print "\nWrote $retval of an attempted $count bytes.\n";
print "Finished (success)\n";
+ return 0;
} else {
print "Finished (error $retval)\n";
+ return $retval;
}
} else {
print "ioctl returned error code $rc.\n";
+ return -1;
}
}
sub Punch {
if (!defined($::client_id)) {
print "You must first ``connect''.\n";
- return;
+ return -1;
}
my $id = shift;
if (!defined($id) || scalar($id) < 1 || !defined($start) ||
scalar($start) < 0 || !defined($count) || scalar($count) < 0) {
print "invalid arguments; type \"help punch\" for a synopsis\n";
- return;
+ return -1;
}
print("Punching $count bytes starting at byte $start from object $id...\n");
my $packed = pack("L", $::client_id) . obdo_pack($obdo) .
pack("p LL LL", $buf, $start, $count);
- my $rc = ioctl(DEV_OBD, &OBD_IOC_PUNCH, $packed);
+ if (! defined $::dev_obd) {
+ print "No current device.\n";
+ return -1;
+ }
+ my $rc = ioctl($::dev_obd, &OBD_IOC_PUNCH, $packed);
$retval = unpack("l", $packed);
if ($retval >= 0) {
print "\nPunched $retval of an attempted $count bytes.\n";
print "Finished (success)\n";
+ return 0;
} else {
print "Finished (error $retval)\n";
+ return $retval;
}
} else {
print "ioctl returned error code $rc.\n";
+ return -1;
}
}
if (!defined($::client_id)) {
print "You must first ``connect''.\n";
- return;
+ return -1;
}
if (!defined($num) || scalar($num) < 1 || scalar($num) > 32) {
# client id, alloc, id[32]
my $packed = pack("LLx128", $::client_id, $num);
- my $rc = ioctl(DEV_OBD, &OBD_IOC_PREALLOCATE, $packed);
+ if (! defined $::dev_obd) {
+ print "No current device.\n";
+ return -1;
+ }
+ my $rc = ioctl($::dev_obd, &OBD_IOC_PREALLOCATE, $packed);
if (!defined $rc) {
print STDERR "ioctl failed: $!\n";
+ return -1;
} elsif ($rc eq "0 but true") {
my $alloc = unpack("x4L", $packed);
my @ids = unpack("x8L32", $packed);
print $i . " ";
}
print "\nFinished (success)\n";
+ return 0;
} else {
print "ioctl returned error code $rc.\n";
+ return -1;
}
}
sub Decusecount {
- my $rc = ioctl(DEV_OBD, &OBD_IOC_DEC_USE_COUNT, 0);
+ if (! defined $::dev_obd) {
+ print "No current device.\n";
+ return -1;
+ }
+ my $rc = ioctl($::dev_obd, &OBD_IOC_DEC_USE_COUNT, 0);
if (!defined $rc) {
print STDERR "ioctl failed: $!\n";
+ return -1;
} elsif ($rc eq "0 but true") {
print "Finished (success)\n";
+ return 0;
} else {
print "ioctl returned error code $rc.\n";
+ return -1;
}
}
sub Statfs {
if (!defined($::client_id)) {
print "You must first ``connect''.\n";
- return;
+ return -1;
}
# struct statfs {
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 $::dev_obd) {
+ print "No current device.\n";
+ return -1;
+ }
+ my $rc = ioctl($::dev_obd, &OBD_IOC_STATFS, $packed);
if (!defined $rc) {
print STDERR "ioctl failed: $!\n";
+ return -1;
} elsif ($rc eq "0 but true") {
# skip both the conn_id and the fs_type in the buffer
my ($bsize, $blocks, $bfree, $bavail, $files, $ffree) =
"$bfree free ($bavail available).\n");
print "$files files, " . ($files - $ffree) . " used, $ffree free.\n";
print "Finished (success)\n";
+ return 0;
} else {
print "ioctl returned error code $rc.\n";
+ return -1;
}
}
} else {
print "Usage: " . $commands{$cmd}->{doc} . "\n";
}
+ return 0;
}
sub Quit {
--- /dev/null
+/* proc_lustre.c manages /proc/lustre/obd.
+ *
+ * OBD devices materialize in /proc as a directory:
+ * /proc/lustre/obd/<number>
+ * when /dev/obd<number> is opened. When the device is closed, the
+ * directory entry disappears.
+ *
+ * For each open OBD device, code in this file also creates a file
+ * named <status>. "cat /proc/lustre/obd/<number>/status" gives
+ * information about the OBD device's configuration.
+ * The class driver manages the "status" entry.
+ *
+ * Other logical drivers can create their own entries. For example,
+ * the obdtrace driver creates /proc/lustre/obd/<obdid>/stats entry.
+ *
+ * This file defines three functions
+ * proc_lustre_register_obd_device()
+ * proc_lustre_release_obd_device()
+ * proc_lustre_remove_obd_entry()
+ * that dynamically create/delete /proc/lustre/obd entries:
+ *
+ * proc_lustre_register_obd_device() registers an obd device,
+ * and, if this is the first OBD device, creates /proc/lustre/obd.
+ *
+ * proc_lustre_release_obd_device() removes device information
+ * from /proc/lustre/obd, and if this is the last OBD device
+ * removes /proc/lustre/obd.
+ *
+ * proc_lustre_remove_obd_entry() removes a
+ * /proc/lustre/obd/<obdid>/ entry by name. This is the only
+ * function that is exported to other modules.
+ *
+ * Copyright (c) 2001 Rumi Zahir <rumi.zahir@intel.com>
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/version.h>
+#include <linux/proc_fs.h>
+
+#include <linux/obd_support.h>
+#include <linux/obd_class.h>
+
+
+#ifdef CONFIG_PROC_FS
+extern struct proc_dir_entry proc_root;
+
+static struct proc_dir_entry *proc_lustre_dir_entry = 0;
+static struct proc_dir_entry *proc_lustre_obd_dir_entry = 0;
+
+static struct proc_dir_entry *
+proc_lustre_mkdir(const char* dname, struct proc_dir_entry *parent)
+{
+ struct proc_dir_entry *child_dir_entry;
+
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2,3,0) /*0x20300 */
+ child_dir_entry = proc_mkdir(dname, parent);
+#else
+ child_dir_entry = create_proc_entry(dname,
+ S_IFDIR | S_IRUGO | S_IXUGO,
+ &proc_root);
+#endif
+ if (!child_dir_entry)
+ printk ("lustre: failed to create /proc entry %s\n", dname);
+
+ return child_dir_entry;
+}
+
+static int read_lustre_status(char *page, char **start, off_t offset,
+ int count, int *eof, void *data)
+{
+ struct obd_device * obddev = (struct obd_device *) data;
+ int p;
+
+ p = sprintf(&page[0], "/dev/obd%d: ", obddev->obd_minor);
+
+ if (obddev->obd_refcnt==0) {
+ /* obd is unused */
+ p += sprintf(&page[p], "open but unused\n\0");
+ }
+ else { /* obd in use */
+ p += sprintf(&page[p], "refcnt(%d)", obddev->obd_refcnt);
+
+ if (obddev->obd_flags & OBD_ATTACHED) {
+ p += sprintf(&page[p], ", attached(%s)",
+ obddev->obd_type->typ_name);
+ }
+
+ if (obddev->obd_flags & OBD_SET_UP) {
+ struct dentry *my_dentry;
+ struct vfsmount *root_mnt;
+ char *path;
+ char *pathpage;
+
+ if (!(pathpage = (char*) __get_free_page(GFP_KERNEL)))
+ return -ENOMEM;
+
+ my_dentry = obddev->obd_fsname.dentry;
+ root_mnt = mntget(current->fs->rootmnt);
+ path = d_path(my_dentry,root_mnt,pathpage,PAGE_SIZE);
+
+ p += sprintf(&page[p], ", setup(%s)", path);
+
+ free_page((unsigned long) pathpage);
+ }
+
+ /* print connections */
+ {
+ struct list_head * lh;
+ struct obd_client * cli=0;
+
+ lh = &obddev->obd_gen_clients;
+ while ((lh = lh->next) != &obddev->obd_gen_clients) {
+ p += sprintf(&page[p],
+ ((cli==0) ? ", connections(" : ",") );
+ cli = list_entry(lh, struct obd_client, cli_chain);
+ p += sprintf(&page[p], "%d", cli->cli_id);
+ } /* while */
+ if (cli!=0) { /* there was at least one client */
+ p += sprintf(&page[p], ")");
+ }
+ }
+
+ p += sprintf(&page[p], "\n\0");
+ }
+
+ /* Compute eof and return value */
+
+ if (offset + count >= p) {
+ *eof=1;
+ return (p - offset);
+ }
+ return count;
+}
+
+struct proc_dir_entry *
+proc_lustre_register_obd_device(struct obd_device *obd)
+{
+ char obdname[32];
+ struct proc_dir_entry *obd_dir;
+ struct proc_dir_entry *obd_status = 0;
+
+ if (!proc_lustre_dir_entry) {
+ proc_lustre_dir_entry =
+ proc_lustre_mkdir("lustre", &proc_root);
+ if (!proc_lustre_dir_entry)
+ return 0;
+
+ proc_lustre_obd_dir_entry =
+ proc_lustre_mkdir("obd", proc_lustre_dir_entry);
+ if (!proc_lustre_obd_dir_entry)
+ return 0;
+ }
+
+ sprintf(obdname, "%d", obd->obd_minor);
+
+ obd_dir = proc_lustre_mkdir(obdname, proc_lustre_obd_dir_entry);
+
+ if (obd_dir)
+ obd_status = create_proc_entry("status", S_IRUSR | S_IFREG, obd_dir);
+
+ if (obd_status) {
+ obd_status->read_proc = read_lustre_status;
+ obd_status->data = (void*) obd;
+ }
+
+ return obd_dir;
+}
+
+void proc_lustre_remove_obd_entry(const char* name, struct obd_device *obd)
+{
+ struct proc_dir_entry *obd_entry = 0;
+ struct proc_dir_entry *obd_dir = obd->obd_proc_entry;
+
+ remove_proc_entry(name, obd_dir);
+
+ while (obd_dir->subdir==0) {
+ /* if we removed last entry in this directory,
+ * then remove parent directory unless this
+ * is /proc itself
+ */
+ if (obd_dir == &proc_root)
+ break;
+
+ obd_entry = obd_dir;
+ obd_dir = obd_dir->parent;
+
+ /* If /proc/lustre/obd/XXX or /proc/lustre/obd or
+ * /proc/lustre are being removed, then reset
+ * internal variables
+ */
+
+ if (obd_entry == obd->obd_proc_entry)
+ obd->obd_proc_entry=0; /* /proc/lustre/obd/XXX */
+ else
+ if (obd_entry == proc_lustre_obd_dir_entry)
+ proc_lustre_obd_dir_entry=0;
+ else
+ if (obd_entry == proc_lustre_dir_entry)
+ proc_lustre_dir_entry=0;
+
+ remove_proc_entry(obd_entry->name, obd_dir);
+ }
+}
+
+void proc_lustre_release_obd_device(struct obd_device *obd)
+{
+ proc_lustre_remove_obd_entry("status", obd);
+}
+
+
+#else /* CONFIG_PROC_FS */
+
+struct proc_dir_entry *proc_lustre_register_obd_device(struct obd_device *obd)
+{
+ return 0;
+}
+
+void proc_lustre_remove_obd_entry(const char* name, struct obd_device *obd) {}
+void proc_lustre_release_obd_device(struct obd_device *obd) {}
+
+#endif /* CONFIG_PROC_FS */
+
+EXPORT_SYMBOL(proc_lustre_remove_obd_entry);
+
+
+
+
+
+
+
+
+
+
+
git://git.whamcloud.com / fs / lustre-release.git / commitdiff