#
#
# osds.pm
# 
# Copyright (c) 2007, 2014, Oracle and/or its affiliates. All rights reserved.
#
#
#    NAME
#      osds_usm_driver_state.pm - Linux OSD component of usm_driver_state.
#
#    DESCRIPTION
#        Purpose
#            Report if USM drivers are installed and/or loaded
#
#        Usage
#            usm_driver_state [installed] [loaded] [version]
#
#    NOTES
#
#
#

use strict;
package osds_acfsdriverstate;
require Exporter;
our @ISA = qw(Exporter);
our @EXPORT = qw(
                 osds_version
                 osds_validate_drivers
                 osds_usm_compatible
                 );

use acfslib;
use osds_acfslib;
use osds_acfsroot;

# Get the currently installed  USM driver version.
# The OS reported is the version that the driver was built with ($kversion).
#
sub osds_version
{
  my ($kversion, $dversion, $rversion) = lib_osds_get_current_installed_version();
  my ($arch) = `uname -i`;
  chomp($arch);

  if (!defined($kversion) || !defined($dversion) || !defined($rversion))
  {
    # Kernel version and/or driver version not detected.
    lib_error_print(116, "Internal error.");
    exit 1;
  }

  my ($return_string) = "$kversion($arch)/$dversion/$rversion";
 
  return $return_string;
}

sub osds_validate_drivers
{
  my ($test_mode, $release, $version, $patchlevel, $arch) = @_;
  my ($type);
  my ($result);
  my ($my_kernel) = `uname -r`;
  chomp ($my_kernel);
  my ($my_platform) = `uname -p`;
  chomp ($my_platform);

  if ($test_mode)
  {
    if (($release =~ /EL/) || ($release =~ /SLES/))
    {
      $type = $release;
    }
    else
    {
      # test is for another OS.
      return "NOOP";
    }

    $my_kernel = $version;
    
    if ($release eq "EL5")
    {
      $release = "redhat-release-5";
    }
    elsif($release eq "EL6")
    {
      $release = "redhat-release-6";
    }
    elsif($release eq "EL7")
    {
      $release = "redhat-release-7";
    }
    elsif($release eq "RHEL6")
    {
      $release = "redhat-release-server-6";
    }
    elsif($release eq "RHEL7")
    {
      $release = "redhat-release-server-7";
    }
    elsif($release eq "SLES10")
    {
      $release = "sles-release-10";         
    }
    elsif($release eq "SLES11")
    {
      $release = "sles-release-11";         
    }
    elsif($release eq "SLES12")
    {
      $release = "sles-release-12";         
    }

    $result = lib_osds_get_os_type($test_mode,
                                   $release, $version, $patchlevel, $arch);
    if ($result =~ /not supported/)
    {
      return USM_NOT_SUPPORTED;
    }
    else
    {
      return USM_SUPPORTED;
    }

  }
  else
  {
    $type = lib_osds_get_os_type();
    if ($type =~ /not supported/)
    {
      return USM_NOT_SUPPORTED;
    }
    else
    {
      return USM_SUPPORTED;
    }
  }


  return $result;
}

# osds_usm_compatible
#
# Make sure drivers are kabi compatible.
#
sub osds_usm_compatible
{
  my ($sub_command) = @_;
  my ($result) = USM_SUPPORTED;
  
  if (osds_acfsroot::osds_initialize(undef, $sub_command) != USM_SUCCESS)
  {
     $result = USM_NOT_SUPPORTED;
  }

  return $result;
} #end osds_usm_compatible