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use diagnostics;
use strict;
my $scsiDeviceAvailable;
my $CSADeviceAvailable;
1;
sub scsiDeviceAvailable {
defined $scsiDeviceAvailable and return $scsiDeviceAvailable;
local *F;
open F, "/proc/scsi/scsi" or log::l("failed to open /proc/scsi/scsi: $!"), return 0;
foreach (<F>) {
/devices: none/ and log::l("no scsi devices are available"), return $scsiDeviceAvailable = 0;
}
log::l("scsi devices are available");
$scsiDeviceAvailable = 1;
}
sub CompaqSmartArrayDeviceAvailable {
defined $CSADeviceAvailable and return $CSADeviceAvailable;
-r "/proc/array/ida0" or log::l("failed to open /proc/array/ida0: $!"), return $CSADeviceAvailable = 0;
log::l("Compaq Smart Array controllers available");
$CSADeviceAvailable = 1;
}
sub scsiGetDevices {
my @drives;
my ($driveNum, $cdromNum, $tapeNum) = qw(0 0 0);
my $err = sub { chop; log::l("unexpected line in /proc/scsi/scsi: $_"); error() };
local $_;
local *F;
open F, "/proc/scsi/scsi" or return &$err();
$_ = <F>; /^Attached devices:/ or return &$err();
while ($_ = <F>) {
my ($id) = /^Host:.*?Id: (\d+)/ or return &$err();
$_ = <F>; my ($vendor, $model) = /^\s*Vendor:\s*(.*?)\s+Model:\s*(.*?)\s+Rev:/ or return &$err();
$_ = <F>; my ($type) = /^\s*Type:\s*(.*)/ or &$err();
my $device;
if ($type =~ /Direct-Access/) {
$type = 'hd';
$device = "sd" . chr($driveNum++ + ord('a'));
} elsif ($type =~ /Sequential-Access/) {
$type = 'tape';
$device = "st" . $tapeNum++;
} elsif ($type =~ /CD-ROM/) {
$type = 'cdrom';
$device = "scd" . $cdromNum++;
}
$device and push @drives, { device => $device, type => $type, info => "$vendor $model", id => $id, bus => 0 };
}
[ @drives ];
}
sub ideGetDevices {
my @idi;
-r "/proc/ide" or die "sorry, /proc/ide not available, seems like you have a pre-2.2 kernel\n => not handled yet :(";
#- Great. 2.2 kernel, things are much easier and less error prone.
foreach my $d (glob_('/proc/ide/hd*')) {
my ($t) = chomp_(cat_("$d/media"));
my $type = ${{ disk => 'hd', cdrom => 'cdrom', tape => 'tape', floppy => 'fd' }}{$t} or next;
my ($info) = chomp_(cat_("$d/model")); $info ||= "(none)";
my $num = ord(($d =~ /(.)$/)[0]) - ord 'a';
push @idi, { type => $type, device => basename($d), info => $info, bus => $num/2, id => $num%2 };
}
[ @idi ];
}
sub CompaqSmartArrayGetDevices {
my @idi;
my $f;
for (my $i = 0; -r ($f = "/proc/array/ida$i"); $i++) {
local *F;
open F, $f or die;
local $_ = <F>;
my ($name) = m|ida/(.*?):| or next;
push @idi, { device => $name, info => "Compaq RAID logical disk", type => 'hd' };
}
[ @idi ];
}
sub dac960GetDevices {
my @idi;
my $file = "/var/log/dmesg";
-r $file or $file = "/tmp/syslog";
local *F;
open F, $file or die "Failed to open $file: $!";
#- We are looking for lines of this format:DAC960#0:
#- /dev/rd/c0d0: RAID-7, Online, 17928192 blocks, Write Thru0123456790123456789012
foreach (<F>) {
my ($devicename, $info) = m|/dev/rd/(.*?): (.*?),| or next;
push @idi, { info => $info, type => 'hd', devicename => $devicename };
log::l("DAC960: $devicename: $info");
}
[ @idi ];
}
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