fusioninventory-agent 1:2.3.10.1-1 / usr / share / fusioninventory / lib / FusionInventory / Agent / Task / Inventory / Linux / Storages.pm

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package FusionInventory::Agent::Task::Inventory::Linux::Storages;

use strict;
use warnings;

use English qw(-no_match_vars);

use FusionInventory::Agent::Tools;
use FusionInventory::Agent::Tools::Linux;

sub isEnabled {
    return 1;
}

sub doInventory {
    my (%params) = @_;

    my $inventory = $params{inventory};
    my $logger    = $params{logger};

    # get devices list from hal, if available, from sysfs otherwise
    my @devices = canRun('lshal') ?
        getDevicesFromHal(logger => $logger) :
        getDevicesFromProc(logger => $logger);

    # complete with udev for missing bits, if available
    if (-d '/dev/.udev/db/') {

        my %udev_devices = map { $_->{NAME} => $_ }
            getDevicesFromUdev(logger => $logger);

        foreach my $device (@devices) {
            # find corresponding udev entry
            my $udev_device = $udev_devices{$device->{NAME}};
            next unless $udev_device;

            foreach my $key (keys %$udev_device) {
                next if $device->{$key};
                $device->{$key} = $udev_device->{$key};
            }
        }
    }

    # get serial & firmware numbers from hdparm, if available
    if (_correctHdparmAvailable()) {
        foreach my $device (@devices) {
            next if $device->{SERIALNUMBER} && $device->{FIRMWARE};

            my $handle = getFileHandle(
                command => "hdparm -I /dev/$device->{NAME}",
                logger  => $logger
            );
            next unless $handle;

            while (my $line = <$handle>) {
                if ($line =~ /^\s+Serial Number\s*:\s*(.+)/i) {
                    my $value = $1;
                    $value =~ s/\s+$//;
                    $device->{SERIALNUMBER} = $value
                        if !$device->{SERIALNUMBER};
                    next;
                } elsif ($line =~ /^\s+Firmware Revision\s*:\s*(.+)/i) {
                    my $value = $1;
                    $value =~ s/\s+$//;
                    $device->{FIRMWARE} = $value
                        if !$device->{FIRMWARE};
                    next;
                } elsif ($line =~ /^\s*Transport:.*(SCSI|SATA|USB)/) {
                    $device->{DESCRIPTION} = $1;
                } elsif ($line =~ /^\s*Model Number:\s*(.*?)\s*$/) {
                    $device->{MODEL} = $1;
                } elsif ($line =~ /Logical Unit WWN Device Identifier:\s*(.*?)\s*$/) {
                    $device->{WWN} = $1;
                }
            }
            close $handle;
        }
    }

    foreach my $device (@devices) {
        if (!$device->{DESCRIPTION}) {
            $device->{DESCRIPTION} = _getDescription(
                $device->{NAME},
                $device->{MANUFACTURER},
                $device->{DESCRIPTION},
                $device->{SERIALNUMBER}
            );
        }

        if (!$device->{MANUFACTURER} or $device->{MANUFACTURER} eq 'ATA') {
            $device->{MANUFACTURER} = getCanonicalManufacturer(
                $device->{MODEL}
            );
        }

        if ($device->{DISKSIZE} && $device->{TYPE} =~ /^cd/) {
            $device->{DISKSIZE} = getDeviceCapacity(device => '/dev/' . $device->{NAME});
        }

        $inventory->addEntry(section => 'STORAGES', entry => $device);
    }
}

sub _getDescription {
    my ($name, $manufacturer, $description, $serialnumber) = @_;

    # detected as USB by udev
    # TODO maybe we should trust udev detection by default?
    return "USB" if ($description && $description =~ /usb/i);

    if ($name =~ /^s/) { # /dev/sd* are SCSI _OR_ SATA
        if (
            ($manufacturer && $manufacturer =~ /ATA/) ||
            ($serialnumber && $serialnumber =~ /ATA/) ||
            ($description && $description =~ /ATA/)
        ) {
            return "SATA";
        } else {
            return "SCSI";
        }
    } elsif ($name =~ /^vd/) {
            return "Virtual";
    } else {
        return "IDE";
    }
}

# some hdparm release generated kernel error if they are
# run on CDROM device
# http://forums.ocsinventory-ng.org/viewtopic.php?pid=20810
sub _correctHdparmAvailable {
    return unless canRun('hdparm');

    my ($major, $minor) = getFirstMatch(
        command => 'hdparm -V',
        pattern => qr/^hdparm v(\d+)\.(\d+)/
    );

    # we need at least version 9.15
    return compareVersion($major, $minor, 9, 15);

}

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