/usr/sbin/amlabel is in amanda-server 1:3.3.3-2ubuntu1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
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# Copyright (c) 2009-2012 Zmanda, Inc. All Rights Reserved.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
# for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# Contact information: Zmanda Inc., 465 S. Mathilda Ave., Suite 300
# Sunnyvale, CA 94086, USA, or: http://www.zmanda.com
use lib '/usr/lib/amanda/perl';
use strict;
use warnings;
use File::Basename;
use Getopt::Long;
use Text::Wrap;
use Amanda::Device qw( :constants );
use Amanda::Debug qw( :logging );
use Amanda::Config qw( :init :getconf config_dir_relative );
use Amanda::Util qw( :constants );
use Amanda::Changer;
use Amanda::Header qw( :constants );
use Amanda::MainLoop;
use Amanda::Tapelist;
my $exit_status = 0;
##
# Subcommand handling
my %subcommands;
sub usage {
print STDERR "Usage: amlabel [--barcode <barcode>] [--meta <meta>] [--assign] [--version]\n"
. " [-f] [-o configoption]* <conf> [<label>] [slot <slot-number>]\n";
exit(1);
}
Amanda::Util::setup_application("amlabel", "server", $CONTEXT_CMDLINE);
my $config_overrides = new_config_overrides($#ARGV+1);
my ($opt_force, $opt_config, $opt_slot, $opt_label);
my ($opt_barcode, $opt_meta, $opt_assign);
$opt_force = 0;
$opt_barcode = undef;
$opt_meta = undef;
$opt_assign = undef;
debug("Arguments: " . join(' ', @ARGV));
Getopt::Long::Configure(qw(bundling));
GetOptions(
'version' => \&Amanda::Util::version_opt,
'help|usage|?' => \&usage,
'o=s' => sub { add_config_override_opt($config_overrides, $_[1]); },
'f' => \$opt_force,
'barcode=s' => \$opt_barcode,
'meta=s' => \$opt_meta,
'assign' => \$opt_assign,
'version' => \&Amanda::Util::version_opt,
) or usage();
if ($opt_assign && (!$opt_meta and !$opt_barcode)) {
print STDERR "--assign require --barcode or --meta\n";
usage();
}
usage() if @ARGV == 0;
$opt_config = $ARGV[0];
if (@ARGV == 1) {
$opt_slot = undef;
$opt_label = undef;
} elsif (@ARGV == 2) {
$opt_slot = undef;
$opt_label = $ARGV[1];
} elsif (@ARGV == 3 and $ARGV[1] eq 'slot') {
$opt_slot = $ARGV[2];
$opt_label = undef;
} elsif (@ARGV == 4 and $ARGV[2] eq 'slot') {
$opt_slot = $ARGV[3];
$opt_label = $ARGV[1];
} else {
usage();
}
set_config_overrides($config_overrides);
config_init($CONFIG_INIT_EXPLICIT_NAME, $opt_config);
my ($cfgerr_level, @cfgerr_errors) = config_errors();
if ($cfgerr_level >= $CFGERR_WARNINGS) {
config_print_errors();
if ($cfgerr_level >= $CFGERR_ERRORS) {
print STDERR "errors processing config file";
exit 1;
}
}
Amanda::Util::finish_setup($RUNNING_AS_DUMPUSER);
my ($tlf, $tl, $res);
sub failure {
my ($msg, $finished_cb) = @_;
print STDERR "$msg\n";
$exit_status = 1;
if ($res) {
$res->release(finished_cb => sub {
# ignore error
$finished_cb->()
});
} else {
$finished_cb->();
}
}
sub main {
my ($finished_cb) = @_;
my $gerr;
my $chg;
my $dev;
my $dev_ok;
my $steps = define_steps
cb_ref => \$finished_cb,
finalize => sub { $chg->quit() if defined $chg };
step start => sub {
my $labelstr = getconf($CNF_LABELSTR);
if (defined ($opt_label) && $opt_label !~ /$labelstr/) {
return failure("Label '$opt_label' doesn't match labelstr '$labelstr'.", $finished_cb);
}
$tlf = Amanda::Config::config_dir_relative(getconf($CNF_TAPELIST));
$tl = Amanda::Tapelist->new($tlf);
if (!defined $tl) {
return failure("Can't load tapelist file ($tlf)", $finished_cb);
}
$chg = Amanda::Changer->new(undef, tapelist => $tl);
return failure($chg, $finished_cb)
if $chg->isa("Amanda::Changer::Error");
if ($opt_assign) {
return $steps->{'assign'}->();
}
if (defined($opt_label) && !$opt_force) {
if ($tl->lookup_tapelabel($opt_label)) {
return failure("Label '$opt_label' already on a volume", $finished_cb);
}
}
$steps->{'load'}->();
};
step load => sub {
print "Reading label...\n";
if ($opt_slot) {
$chg->load(slot => $opt_slot, mode => "write",
res_cb => $steps->{'loaded'});
} elsif ($opt_barcode) {
$chg->inventory(inventory_cb => $steps->{'inventory'});
} else {
$chg->load(relative_slot => "current", mode => "write",
res_cb => $steps->{'loaded'});
}
};
step inventory => sub {
my ($err, $inv) = @_;
return failure($err, $finished_cb) if $err;
for my $sl (@$inv) {
if ($sl->{'barcode'} eq $opt_barcode) {
return $chg->load(slot => $sl->{'slot'}, mode => "write",
res_cb => $steps->{'loaded'});
}
}
return failure("No volume with barcode '$opt_barcode' available", $finished_cb);
};
step loaded => sub {
(my $err, $res) = @_;
return failure($err, $finished_cb) if $err;
if (defined $opt_slot && defined $opt_barcode &&
$opt_barcode ne $res->{'barcode'}) {
if (defined $res->{'barcode'}) {
return failure("Volume in slot $opt_slot have barcode '$res->{'barcode'}, it is not '$opt_barcode'", $finished_cb);
} else {
return failure("Volume in slot $opt_slot have no barcode", $finished_cb);
}
}
$dev = $res->{'device'};
$dev_ok = 1;
if ($dev->status & $DEVICE_STATUS_VOLUME_UNLABELED) {
if (!$dev->volume_header or $dev->volume_header->{'type'} == $F_EMPTY) {
print "Found an empty tape.\n";
} else {
# force is required for non-Amanda tapes
print "Found a non-Amanda tape.\n";
$dev_ok = 0 unless ($opt_force);
}
} elsif ($dev->status & $DEVICE_STATUS_VOLUME_ERROR) {
# it's OK to force through VOLUME_ERROR
print "Error reading volume label: " . $dev->error_or_status(), "\n";
$dev_ok = 0 unless ($opt_force);
} elsif ($dev->status != $DEVICE_STATUS_SUCCESS) {
# but anything else is fatal
print "Error reading volume label: " . $dev->error_or_status(), "\n";
$dev_ok = 0;
} else {
# this is a labeled Amanda tape
my $label = $dev->volume_label;
my $labelstr = getconf($CNF_LABELSTR);
if ($label !~ /$labelstr/) {
print "Found label '$label', but it is not from configuration " .
"'" . Amanda::Config::get_config_name() . "'.\n";
$dev_ok = 0 unless ($opt_force);
} elsif ($tl->lookup_tapelabel($label)) {
print "Volume with label '$label' is active and contains data from this configuration.\n";
if ($opt_force) {
# if -f, then the user should clean things up..
print "Consider using 'amrmtape' to remove volume '$label' from the catalog.\n";
# note that we don't run amrmtape automatically, as it could result in data loss when
# multiple volumes have (perhaps accidentally) the same label
} else {
$dev_ok = 0
}
} else {
print "Found Amanda volume '$label'.\n";
}
}
$res->get_meta_label(finished_cb => $steps->{'got_meta'});
};
step got_meta => sub {
my ($err, $meta) = @_;
if (defined $meta && defined $opt_meta && $meta ne $opt_meta) {
return failure();
}
$meta = $opt_meta if !defined $meta;
($meta, my $merr) = $res->make_new_meta_label() if !defined $meta;
if (defined $merr) {
return failure($merr, $finished_cb);
}
$opt_meta = $meta;
my $label = $opt_label;
if (!defined($label)) {
($label, my $lerr) = $res->make_new_tape_label(meta => $meta);
if (defined $lerr) {
return failure($lerr, $finished_cb);
}
}
if ($dev_ok) {
print "Writing label '$label'...\n";
if (!$dev->start($ACCESS_WRITE, $label, "X")) {
return failure("Error writing label: " . $dev->error_or_status(), $finished_cb);
} elsif (!$dev->finish()) {
return failure("Error finishing device: " . $dev->error_or_status(), $finished_cb);
}
print "Checking label...\n";
my $status = $dev->read_label();
if ($status != $DEVICE_STATUS_SUCCESS) {
return failure("Checking the tape label failed: " . $dev->error_or_status(),
$finished_cb);
} elsif (!$dev->volume_label) {
return failure("No label found.", $finished_cb);
} elsif ($dev->volume_label ne $label) {
my $got = $dev->volume_label;
return failure("Read back a different label: got '$got', but expected '$label'",
$finished_cb);
} elsif ($dev->volume_time ne "X") {
my $got = $dev->volume_time;
return failure("Read back a different timetstamp: got '$got', but expected 'X'",
$finished_cb);
}
# update the tapelist
$tl->reload(1);
$tl->remove_tapelabel($label);
$tl->add_tapelabel("0", $label, undef, 1, $meta, $res->{'barcode'}, $dev->block_size/1024);
$tl->write();
print "Success!\n";
# notify the changer
$res->set_label(label => $label, finished_cb => $steps->{'set_meta_label'});
} else {
return failure("Not writing label.", $finished_cb);
}
};
step set_meta_label => sub {
my ($gerr) = @_;
if ($opt_meta) {
return $res->set_meta_label(meta => $opt_meta,
finished_cb => $steps->{'labeled'});
} else {
return $steps->{'labeled'}->();
}
};
step labeled => sub {
my ($err) = @_;
$gerr = $err if !$gerr;
$res->release(finished_cb => $steps->{'released'});
};
step released => sub {
my ($err) = @_;
return failure($gerr, $finished_cb) if $gerr;
return failure($err, $finished_cb) if $err;
$finished_cb->();
};
step assign => sub {
my $tle;
$tle = $tl->lookup_tapelabel($opt_label);
if (defined $tle) {
my $meta = $opt_meta;
if (defined $meta) {
if (defined($tle->{'meta'}) && $meta ne $tle->{'meta'} &&
!$opt_force) {
return failure("Can't change meta-label with --force, old meta-label is '$tle->{'meta'}'");
}
} else {
$meta = $tle->{'meta'};
}
my $barcode = $opt_barcode;
if (defined $barcode) {
if (defined($tle->{'barcode'}) &&
$barcode ne $tle->{'barcode'} &&
!$opt_force) {
return failure("Can't change barcode with --force, old barcode is '$tle->{'barcode'}'");
}
} else {
$barcode = $tle->{'barcode'};
}
$tl->reload(1);
$tl->remove_tapelabel($opt_label);
$tl->add_tapelabel($tle->{'datestamp'}, $tle->{'label'},
$tle->{'comment'}, $tle->{'reuse'}, $meta,
$barcode);
$tl->write();
} else {
return failure("Label '$opt_label' is not in the tapelist file", $finished_cb);
}
$chg->inventory(inventory_cb => $steps->{'assign_inventory'});
};
step assign_inventory => sub {
my ($err, $inv) = @_;
if ($err) {
return $finished_cb->() if $err->notimpl;
return failure($err, $finished_cb);
}
for my $sl (@$inv) {
if (defined $sl->{'label'} && $sl->{'label'} eq $opt_label) {
return $chg->set_meta_label(meta => $opt_meta,
slot => $sl->{'slot'},
finished_cb => $steps->{'done'});
}
}
$finished_cb->();
};
step done => sub {
$finished_cb->();
}
}
main(\&Amanda::MainLoop::quit);
Amanda::MainLoop::run();
Amanda::Util::finish_application();
exit($exit_status);
|