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chg-iomega.pl
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chg-iomega.pl
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#! @PERL@ -w
# Catch for sh/csh on systems without #! ability.
eval '(exit $?0)' && eval 'exec @PERL@ -S $0 ${1+"$@"}'
& eval 'exec @PERL@ -S $0 $argv:q'
if 0;
#
# This changer script is designed for IOMEGA or JAZZ disks of various sizes
# as well as any other removable disk media.
#
# This is a PURELY MANUAL changer. It requests insertion of disk media via
# messages on /dev/tty. So it cannot be used via crontab.
#
# Make sure you comply with any of the following.
# - Add statements
# tpchanger "chg-iomega"
# tapedev "file:<mount_point_of_removable_disk>"
# # (e.g. tapedev "file:/mnt/iomega" )
# tapetype IOMEGA
#
#
# define tapetype IOMEGA {
# comment "IOMega 250 MB floppys"
# length 250 mbytes
# filemark 100 kbytes
# speed 1 mbytes
# }
# to your /etc/amanda/<backup_set>/amanda.conf file
# - Add entry to /etc/fstab to specify mount point of removable disk
# and make this disk mountable by any user.
# - Format all disks, add a "data" sub directory and label all disks
# by a call to amlabel.
# - Be aware that as of version 2.4.4p1, amanda can't handle backups that are
# larger than the size of the removable disk media. So make sure
# /etc/amanda/<backup_set>/disklist specifies chunks smaller than the
# disk size.
#
# This script is built up out of bits and pieces of other scripts, in
# particular chg-chio.pl. That script was written by
# Nick Hibma - [email protected]
#
# Permission to freely use and distribute is granted (by me and was granted by
# the original authors).
#
# Christoph Pospiech <[email protected]>
#
require 5.001;
($progname = $0) =~ s#/.*/##;
use English;
use Getopt::Long;
delete @ENV{'IFS', 'CDPATH', 'ENV', 'BASH_ENV', 'PATH'};
$ENV{'PATH'} = "/usr/bin:/usr/sbin:/sbin:/bin";
$| = 1;
if (-d "@AMANDA_DBGDIR@") {
$logfile = "@AMANDA_DBGDIR@/changer.debug";
} else {
$logfile = "/dev/null";
}
die "$progname: cannot open $logfile: $ERRNO\n"
unless (open (LOG, ">> $logfile"));
#
# get the information from the configuration file
#
$prefix="@prefix@";
$prefix=$prefix; # avoid warnings about possible typo
$exec_prefix="@exec_prefix@";
$exec_prefix=$exec_prefix; # Ditto
$sbindir="@sbindir@";
if ( "@USE_VERSION_SUFFIXES@" eq "yes" ) {
$SUF = "-@VERSION@";
} else {
$SUF = "";
}
chomp ($tapeDevice = `$sbindir/amgetconf$SUF tapedev 2>&1`);
die "tapedev not found in amanda.conf"
if !$tapeDevice or $tapeDevice eq "" or
$tapeDevice =~ m/no such parameter/;
chomp ($changerDevice = `$sbindir/amgetconf$SUF changerdev 2>&1`);
chomp $changerDevice;
die "changerdev not found in amanda.conf"
if !$changerDevice or $changerDevice eq "" or
$changerDevice =~ m/no such parameter/;
#
# Initialise a few global variables
#
$current_label = "";
#$current_slot = 0;
$max_slot = 1;
@dow = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
@moy = ("Jan", "Feb", "Mar", "Apr", "May", "Jun",
"Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
sub do_time {
my (@t);
my ($r);
###
# Get the local time for the value.
###
@t = localtime (time ());
###
# Return the result.
###
$r = sprintf "%s %s %2d %2d:%02d:%02d %4d",
$dow[$t[6]],
$moy[$t[4]],
$t[3],
$t[2], $t[1], $t[0],
1900 + $t[5];
return $r;
}
sub is_mounted {
my $device = shift @_;
my ($directory) = ($device =~ m/file\:(.*)$/);
if ( -d "$directory/data" ) { return 1;}
else {return 0;}
}
sub request {
my $label = shift @_;
my $answer;
open (TTY, "+</dev/tty") or die "Can't open tty.\n";
print TTY "Insert Disk with label $label\n";
read TTY,$answer,1;
close TTY;
return $answer;
}
sub print_label {
my $label = shift @_;
open (TTY, "+</dev/tty") or die "Can't open tty.\n";
print TTY "The current Disk has label $label\n";
close TTY;
}
sub get_label {
my $device = shift @_;
my ($directory) = ($device =~ m/file\:(.*)$/);
my @dir_list = glob("$directory/data/*");
while ( ($_= shift(@dir_list)) ) {
if ( /0+\.([\w\d]+)/ ) {return $1;}
}
return "no label";
}
sub Load {
my $device = shift @_;
my ($directory) = ($device =~ m/file\:(.*)$/);
my $label;
print LOG &do_time(), ": enter: Load $device\n";
if ( ! &is_mounted($device) ) {
print LOG &do_time(), ": mounting $directory\n";
system "mount $directory";
}
$label = get_label $device;
&print_label($label);
print LOG &do_time(), ": current label: $label\n";
print LOG &do_time(), ": leave: Load\n";
}
sub Unload {
my $device = shift @_;
my ($directory) = ($device =~ m/file\:(.*)$/);
print LOG &do_time(), ": enter: Unload $device\n";
if ( &is_mounted($device) ) {
print LOG &do_time(), ": ejecting $directory\n";
system "eject $directory";
}
print LOG &do_time(), ": leave: Unload\n";
}
#
# Main program
#
#
# Initialise
#
$opt_slot = 0; # perl -w fodder
$opt_info = 0; # perl -w fodder
$opt_reset = 0; # perl -w fodder
$opt_eject = 0; # perl -w fodder
$opt_search = 0; # perl -w fodder
$opt_label = 0; # perl -w fodder
GetOptions("slot=s", "info", "reset", "eject", "search=s", "label=s");
if ( $opt_slot ) {
print LOG &do_time(), ": Loading slot $opt_slot requested\n";
if ( ! &is_mounted ($tapeDevice) ) {
&request ("any");
&Load ($tapeDevice);
}
$current_label = &get_label ($tapeDevice);
print LOG &do_time(), ": current label: $current_label\n";
print LOG &do_time(), ": 1 $tapeDevice\n";
print "1 $tapeDevice\n";
exit 0;
}
if ( $opt_info ) {
print LOG &do_time(), ": info requested\n";
$current_label = &get_label ($tapeDevice);
print LOG &do_time(), ": current label: $current_label\n";
print LOG &do_time(), ": 1 $max_slot 1 1\n";
print "1 $max_slot 1 1\n";
exit 0;
}
if ( $opt_reset ) {
print LOG &do_time(), ": reset requested\n";
&Unload ($tapeDevice);
&request ("any");
&Load ($tapeDevice);
$current_label = &get_label ($tapeDevice);
print LOG &do_time(), ": current label: $current_label\n";
print LOG &do_time(), ": 1 $tapeDevice\n";
print "1 $tapeDevice\n";
exit 0;
}
if ( $opt_eject ) {
print LOG &do_time(), ": eject requested\n";
&Unload ($tapeDevice);
print LOG &do_time(), ": 1 $tapeDevice\n";
print "1 $tapeDevice\n";
exit 0;
}
if ( $opt_search ) {
print LOG &do_time(), ": search label $opt_search requested\n";
$retry = 0;
$current_label = &get_label ($tapeDevice);
print LOG &do_time(), ": current label: $current_label\n";
while ( $opt_search ne $current_label && ++$retry < 5) {
&Unload ($tapeDevice);
&request ($opt_search);
&Load ($tapeDevice);
$current_label = &get_label ($tapeDevice);
print LOG &do_time(), ": search label: $opt_search\n";
print LOG &do_time(), ": current label: $current_label\n";
}
if ( $retry >= 5) {
print LOG &do_time(), ": disk not found\n";
print "disk not found\n";
exit 1;
} else {
print LOG &do_time(), ": 1 $tapeDevice\n";
print "1 $tapeDevice\n";
exit 0;
}
}
if ( $opt_label ) {
print LOG &do_time(), ": label $opt_label requested\n";
# no operation
print LOG &do_time(), ": 1 $tapeDevice\n";
print "1 $tapeDevice\n";
exit 0;
}
print "$progname: No command was received. Exiting.\n";
exit 1;