#!/usr/bin/perl
# IBM(c) 2007 EPL license http://www.eclipse.org/legal/epl-v10.html
#
#####################################################
#
# This is script is called during the initial installation of xCAT
#    It can also be called directly to redo the xcat configuration
#
#####################################################

BEGIN
{
    $::XCATROOT = $ENV{'XCATROOT'} ? $ENV{'XCATROOT'} : '/opt/xcat';
    $::XCATDIR  = $ENV{'XCATDIR'}  ? $ENV{'XCATDIR'}  : '/etc/xcat';
}

use lib "$::XCATROOT/lib/perl";
use xCAT::Utils;
use Getopt::Long;
use xCAT::MsgUtils;
use Socket;

$::progname = "xcatconfig";

Getopt::Long::Configure("bundling");
$Getopt::Long::ignorecase = 0;

# parse the options
if (
    !GetOptions(
                'f|force'   => \$::FORCE,
                'h|help'    => \$::HELP,
                'v|version' => \$::VERSION,
    )
  )
{
    &usage;
    exit(1);
}

# display the usage if -h or --help is specified
if ($::HELP)
{
    &usage;
    exit(0);
}

# display the version statement if -v or --verison is specified
if ($::VERSION)
{
    xCAT::MsgUtils->message('I', "$::progname: version 1.0\n");
    exit(0);
}

$::osname = `uname`;
chomp $::osname;

if ($::osname eq 'AIX')
{
    $::arch = `uname -p`;
    $::root = "";
}
else
{
    $::arch = `uname -m`;
    $::root = "/root";
}
chomp $::arch;
chomp $::root;

# Make this system a management node
my $cmd = "/bin/touch /etc/xCATMN";
my $outref = xCAT::Utils->runcmd("$cmd", 0);
if ($::RUNCMD_RC != 0)
{
    xCAT::MsgUtils->message('E', "Could not create /etc/xCATMN file.\n");
}
else
{
    xCAT::MsgUtils->message('I', "Created /etc/xCATMN file.\n");
}

# Make sure service node file is not there
if (-f "/etc/xCATSN")
{
    my $cmd = "/bin/rm /etc/xCATSN";
    my $outref = xCAT::Utils->runcmd("$cmd", 0);
}

# some Linux-only config
#  (used to FTP postscripts to nodes)
if ($::osname eq 'Linux')
{

    #  Locally mount /var/ftp/install over /install
    if (!-d "/var/ftp/install")
    {
        my $cmd = "/bin/mkdir -p /var/ftp/install";
        my $outref = xCAT::Utils->runcmd("$cmd", 0);
        if ($::RUNCMD_RC != 0)
        {
            xCAT::MsgUtils->message('E',
                              "Could not create /var/ftp/install directory.\n");
        }
        else
        {
            xCAT::MsgUtils->message('I',
                                    "Created /var/ftp/install directory.\n");
        }
    }

    #
    #  add /var/ftp/install to /etc/fstab and mount - if needed
    #
    my $changed_fstab = 0;
    my $cmd           = "/bin/cat /etc/fstab | grep '/var/ftp/install'";
    my $outref        = xCAT::Utils->runcmd("$cmd", -1);
    if ($::RUNCMD_RC != 0)
    {

        # ok - then add this entry
        my $cmd =
          "/bin/echo '/install                /var/ftp/install        none  bind,defaults 0 0' >> /etc/fstab";
        my $outref = xCAT::Utils->runcmd("$cmd", 0);
        if ($::RUNCMD_RC != 0)
        {
            xCAT::MsgUtils->message('E',
                                    "Could not update the /etc/fstab file.\n");
        }
        else
        {
            xCAT::MsgUtils->message('I',
                            "Added /var/ftp/install to the /etc/fstab file.\n");
            $changed_fstab++;
        }
    }
    if ($changed_fstab)
    {

        # mount /var/ftp/install
        my $cmd = "mount /var/ftp/install";
        my $outref = xCAT::Utils->runcmd("$cmd", 0);
        if ($::RUNCMD_RC != 0)
        {
            xCAT::MsgUtils->message('E', "Could not mount /var/ftp/install.\n");
        }
        else
        {
            xCAT::MsgUtils->message('I',
                          "/var/ftp/install has been mounted over /install.\n");
        }
    }

    #
    #  add /var/ftp/tftpboot to /etc/fstab and mount - if needed
    #
    my $changed_fstab = 0;
    my $cmd           = "/bin/cat /etc/fstab | grep '/var/ftp/tftpboot'";
    my $outref        = xCAT::Utils->runcmd("$cmd", -1);
    if ($::RUNCMD_RC != 0)
    {

        # ok - then add this entry
        my $cmd =
          "/bin/echo '/tftpboot                /var/ftp/tftpboot        none  bind,defaults 0 0' >> /etc/fstab";
        my $outref = xCAT::Utils->runcmd("$cmd", 0);
        if ($::RUNCMD_RC != 0)
        {
            xCAT::MsgUtils->message('E',
                                    "Could not update the /etc/fstab file.\n");
        }
        else
        {
            xCAT::MsgUtils->message('I',
                           "Added /var/ftp/tftpboot to the /etc/fstab file.\n");
            $changed_fstab++;
        }
    }
    if ($changed_fstab)
    {

        # mount /var/ftp/tftpboot
        my $cmd = "mount /var/ftp/tftpboot";
        my $outref = xCAT::Utils->runcmd("$cmd", 0);
        if ($::RUNCMD_RC != 0)
        {
            xCAT::MsgUtils->message('E',
                                    "Could not mount /var/ftp/tftpboot.\n");
        }
        else
        {
            xCAT::MsgUtils->message('I',
                        "/var/ftp/tftpboot has been mounted over /tftpboot.\n");
        }
    }

    # start vsftpd
    my $cmd    = "/sbin/chkconfig vsftpd on";
    my $outref = xCAT::Utils->runcmd("$cmd", 0);
    my $cmd    = "/etc/init.d/vsftpd restart";
    my $outref = xCAT::Utils->runcmd("$cmd", 0);
    if ($::RUNCMD_RC != 0)
    {
        xCAT::MsgUtils->message('E', "Could not start VSFTPD.\n");
    }
    else
    {
        xCAT::MsgUtils->message('I', "VSFTPD has been restarted.\n");
    }

}    # - some Linux-only config

#
# Generate ssh host keys
#

#  create /etc/xcat/hostkeys and /install/postscripts/hostkeys
if (!-d "/install/postscripts/hostkeys")    # directory for public keys
{
    my $cmd = "/bin/mkdir -p /install/postscripts/hostkeys";
    my $outref = xCAT::Utils->runcmd("$cmd", 0);
    if ($::RUNCMD_RC != 0)
    {
        xCAT::MsgUtils->message('E',
                 "Could not create /install/postscripts/hostkeys directory.\n");
    }
}
if (!-d "/etc/xcat/hostkeys")               # directory for public/private keys
{
    my $cmd = "/bin/mkdir -p /etc/xcat/hostkeys";
    my $outref = xCAT::Utils->runcmd("$cmd", 0);
    if ($::RUNCMD_RC != 0)
    {
        xCAT::MsgUtils->message('E',
                            "Could not create /etc/xcat/hostkeys directory.\n");
    }
}
# 
# if private hostkeys do not exist in either directory or force option
# regenerate
my $hostkey = "/install/postscripts/hostkeys/ssh_host_rsa_key";
my $hostkey2 = "/etc/xcat/hostkeys/ssh_host_rsa_key";
if (((!-r $hostkey) && (!-r $hostkey2)) || $::FORCE)
{

    # remove the old keys
    my $cmd = "/bin/rm /install/postscripts/hostkeys/ssh_host*";
    my $outref = xCAT::Utils->runcmd("$cmd", -1);
    if ($::RUNCMD_RC != 0)
    {
        xCAT::MsgUtils->message(
            'I',
            "Could not remove ssh keys from /install/postscripts/hostkeys directory. They may not exist.\n"
            );
    }

    # remove the old keys
    my $cmd = "/bin/rm /etc/xcat/hostkeys/ssh_host*";
    my $outref = xCAT::Utils->runcmd("$cmd", -1);
    if ($::RUNCMD_RC != 0)
    {
        xCAT::MsgUtils->message(
            'I',
            "Could not remove ssh keys from /etc/xcat/hostkeys directory. They may not exist.\n"
            );
    }

    #
    # generate new hostkeys
    #
    xCAT::MsgUtils->message('I', "Generating SSH1 RSA Key...\n");
    my $cmd =
      "/usr/bin/ssh-keygen -t rsa1 -f /etc/xcat/hostkeys/ssh_host_key -C '' -N ''";
    my $outref = xCAT::Utils->runcmd("$cmd", 0);
    if ($::RUNCMD_RC != 0)
    {
        xCAT::MsgUtils->message('E', "Could not generate SSH1 RSA key.\n");
    }

    xCAT::MsgUtils->message('I', "Generating SSH2 RSA Key...\n");
    my $cmd =
      "/usr/bin/ssh-keygen -t rsa -f /etc/xcat/hostkeys/ssh_host_rsa_key -C '' -N ''";
    my $outref = xCAT::Utils->runcmd("$cmd", 0);
    if ($::RUNCMD_RC != 0)
    {
        xCAT::MsgUtils->message('E', "Could not generate SSH2 RSA key.\n");
    }

    xCAT::MsgUtils->message('I', "Generating SSH2 DSA Key...\n");
    my $cmd =
      "/usr/bin/ssh-keygen -t dsa -f /etc/xcat/hostkeys/ssh_host_dsa_key -C '' -N ''";
    my $outref = xCAT::Utils->runcmd("$cmd", 0);
    if ($::RUNCMD_RC != 0)
    {
        xCAT::MsgUtils->message('E', "Could not generate SSH2 DSA key.\n");
    }

    # copy the public keys to install directory
    my $cmd =
      "/bin/cp /etc/xcat/hostkeys/*.pub /install/postscripts/hostkeys/.";
    my $outref = xCAT::Utils->runcmd("$cmd", 0);
    if ($::RUNCMD_RC != 0)
    {
        xCAT::MsgUtils->message('E', "$cmd not successful.\n");
    }
    else
    {
        xCAT::MsgUtils->message('I', "$cmd is successful\n");
    }
} else {  # keys exist 
#
# so if private keys are in /install
# move old hostkeys keys if they exist in /install, to the 
# new directory /etc/xcat/hostkeys and remove private keys from /install
  if (-f "/install/postscripts/hostkeys/ssh_host_rsa_key")
  {

    # copy all keys to /etc/xcat/hostkeys directory
    my $cmd = "/bin/cp -p /install/postscripts/hostkeys/* /etc/xcat/hostkeys/.";
    my $outref = xCAT::Utils->runcmd("$cmd", 0);
    if ($::RUNCMD_RC != 0)
    {
        xCAT::MsgUtils->message('E', "$cmd not successful.\n");
    }

    # remove private keys from install dir, leave the public keys
    if (-f "/install/postscripts/hostkeys/ssh_host_dsa_key")
    {
        my $cmd = "/bin/rm /install/postscripts/hostkeys/ssh_host_dsa_key";
        my $outref = xCAT::Utils->runcmd("$cmd", 0);
        if ($::RUNCMD_RC != 0)
        {
            xCAT::MsgUtils->message('E', "$cmd not successful.\n");
        }
    }
    if (-f "/install/postscripts/hostkeys/ssh_host_key")
    {
        my $cmd = "/bin/rm /install/postscripts/hostkeys/ssh_host_key";
        my $outref = xCAT::Utils->runcmd("$cmd", 0);
        if ($::RUNCMD_RC != 0)
        {
            xCAT::MsgUtils->message('E', "$cmd not successful.\n");
        }
    }
    if (-f "/install/postscripts/hostkeys/ssh_host_rsa_key")
    {
        my $cmd = "/bin/rm /install/postscripts/hostkeys/ssh_host_rsa_key";
        my $outref = xCAT::Utils->runcmd("$cmd", 0);
        if ($::RUNCMD_RC != 0)
        {
            xCAT::MsgUtils->message('E', "$cmd not successful.\n");
        }
    }
  }
  # so if no public key in  /install/postscripts/hostkeys
  # copy the /etc/xcat/hostkeys  public keys to /install/postscripts/hostkeys 
  if ( !(-f "/install/postscripts/hostkeys/ssh_host_rsa_key.pub"))
  {
    # rm any files 
    my $cmd =
      "/bin/rm /install/postscripts/hostkeys/*";
    my $outref = xCAT::Utils->runcmd("$cmd", -1);
    if ($::RUNCMD_RC != 0)
    {
        xCAT::MsgUtils->message('E', "$cmd not successful. Files may not exist.\n");
    }
    else
    {
        xCAT::MsgUtils->message('I', "$cmd is successful\n");
    }
    # copy the public keys to install directory
    my $cmd =
      "/bin/cp /etc/xcat/hostkeys/*.pub /install/postscripts/hostkeys/.";
    my $outref = xCAT::Utils->runcmd("$cmd", 0);
    if ($::RUNCMD_RC != 0)
    {
        xCAT::MsgUtils->message('E', "$cmd not successful.\n");
    }
    else
    {
        xCAT::MsgUtils->message('I', "$cmd is successful\n");
    }
  }
}



#
# move old directories if they exist
if (-d "/install/postscripts/.ssh")
{
    my $cmd = "/bin/mv /install/postscripts/.ssh/* /install/postscripts/_ssh/.";
    my $outref = xCAT::Utils->runcmd("$cmd", -1);
    my $cmd    = "/bin/rmdir /install/postscripts/.ssh";
    my $outref = xCAT::Utils->runcmd("$cmd", -1);

    # if ($::RUNCMD_RC != 0)
    # {
    #    xCAT::MsgUtils->message(
    #       'E',
    #      "Could not move /install/postscripts/.ssh directory to /install/postscripts/_ssh.\n"
    #     );
    # }
    # else
    # {
    #    xCAT::MsgUtils->message(
    #        'I',
    #       "Moved /install/postscripts/.ssh directory to /install/postscripts/_ssh.\n"
    #       );
    #  }
}
if (-d "/install/postscripts/.xcat")
{
    my $cmd =
      "/bin/mv /install/postscripts/.xcat/* /install/postscripts/_xcat/.";
    my $outref = xCAT::Utils->runcmd("$cmd", 0);
    if ($::RUNCMD_RC != 0)
    {
        xCAT::MsgUtils->message(
            'E',
            "Could not move /install/postscripts/.xcat directory to /install/postscripts/_xcat.\n"
            );
    }
    my $cmd = "/bin/rmdir /install/postscripts/.xcat";
    my $outref = xCAT::Utils->runcmd("$cmd", -1);
}

#
# create /.ssh dir if needed
#
my $sshdir = "$::root/.ssh";
if (!-d $sshdir)
{
    my $cmd = "/bin/mkdir -m 700 -p $sshdir";
    my $outref = xCAT::Utils->runcmd("$cmd", 0);
    if ($::RUNCMD_RC != 0)
    {
        xCAT::MsgUtils->message('E', "Could not create $sshdir directory.\n");
    }
    else
    {
        xCAT::MsgUtils->message('I', "Created $sshdir directory.\n");
    }
}

#
# create or modify the -/.ssh/config file
#
my $cfgfile = "$::root/.ssh/config";
if ((-f $cfgfile) || $::FORCE)
{

    # it exists - so see if it needs to be updated  - ???????? check!!!
    #	xCAT::MsgUtils->message('I', "Checking for \'StrictHostKeyChecking no\' in $cfgfile.\n");
    my $cmd = "/bin/cat $cfgfile | grep 'StrictHostKeyChecking no'";
    my $outref = xCAT::Utils->runcmd("$cmd", -1);
    if ($::RUNCMD_RC != 0)
    {

        # ok - then add this entry
        my $cmd =
          "/bin/echo StrictHostKeyChecking no >> $cfgfile; chmod  600 $cfgfile";
        my $outref = xCAT::Utils->runcmd("$cmd", 0);
        if ($::RUNCMD_RC != 0)
        {
            xCAT::MsgUtils->message('E',
                                    "Could not update the $cfgfile file.\n");
        }
        else
        {
            xCAT::MsgUtils->message('I',
                                    "Added updates to the $cfgfile file.\n");
        }
    }
}
else
{

    # file doesn't exist so just create it
    my $cmd =
      "/bin/echo StrictHostKeyChecking no > $cfgfile; chmod  600 $cfgfile";
    my $outref = xCAT::Utils->runcmd("$cmd", 0);
    if ($::RUNCMD_RC != 0)
    {
        xCAT::MsgUtils->message('E', "Could not update the $cfgfile file.\n");
    }
    else
    {
        xCAT::MsgUtils->message('I', "Added updates to the $cfgfile file.\n");
    }
}

#
#  create /install/postscripts/_ssh if needed
#
if (!-d "/install/postscripts/_ssh")
{
    my $cmd = "/bin/mkdir -p /install/postscripts/_ssh";
    my $outref = xCAT::Utils->runcmd("$cmd", 0);
    if ($::RUNCMD_RC != 0)
    {
        xCAT::MsgUtils->message('E',
                     "Could not create /install/postscripts/_ssh directory.\n");
    }
    else
    {
        xCAT::MsgUtils->message('I',
                              "Created /install/postscripts/_ssh directory.\n");
    }
}

#
#  Generate id_rsa.pub, if it does not exist or the force option
#
my $pubfile = "$::root/.ssh/id_rsa.pub";
my $rsafile = "$::root/.ssh/id_rsa";
if ((!-r $pubfile) || $::FORCE)
{

    if ($::FORCE)
    {

        # remove the old file
        my $cmd = "/bin/rm $::root/.ssh/id_rsa*";
        my $outref = xCAT::Utils->runcmd("$cmd", 0);
        if ($::RUNCMD_RC != 0)
        {
            xCAT::MsgUtils->message(
                  'E',
                  "Could not remove id_rsa files from $::root/.ssh directory.\n"
                  );
        }
        else
        {
            xCAT::MsgUtils->message('I',
                         "Removed id_rsa files from $::root/.ssh directory.\n");
        }
    }

    my $cmd = "/usr/bin/ssh-keygen -t rsa -q -b 2048 -N '' -f $rsafile";
    my $outref = xCAT::Utils->runcmd("$cmd", 0);
    if ($::RUNCMD_RC != 0)
    {
        xCAT::MsgUtils->message('E', "Could not generate $pubfile.\n");
    }
    else
    {
        xCAT::MsgUtils->message('I', "Generated $pubfile.\n");

        if ($::osname eq 'AIX')
        {

            # allows node be able to scp to the MN  only for AIX
            my $cmd = "/bin/cat $pubfile >>  /.ssh/authorized_keys";
            my $outref = xCAT::Utils->runcmd("$cmd", 0);
            if ($::RUNCMD_RC != 0)
            {
                xCAT::MsgUtils->message('E',
                          "Could not cat $pubfile to /.ssh/authorized_keys.\n");
            }
            else
            {
                xCAT::MsgUtils->message('I',
                                  "Added $pubfile to /.ssh/authorized_keys.\n");
                chmod 0600, "/.ssh/authorized_keys";
            }
        }
    }
}

# copy authorized_keys for install on node
if (-r $pubfile)
{
    my $cmd = "/bin/cp $pubfile /install/postscripts/_ssh/authorized_keys";
    my $outref = xCAT::Utils->runcmd("$cmd", 0);
    if ($::RUNCMD_RC != 0)
    {
        xCAT::MsgUtils->message(
            'E',
            "Could not copy $pubfile to /install/postscripts/_ssh/authorized_keys.\n"
            );
    }
    else
    {
        xCAT::MsgUtils->message('I',
             "Copied $pubfile to /install/postscripts/_ssh/authorized_keys.\n");
    }
}
else
{
    xCAT::MsgUtils->message(
        'E',
        "Could not copy $pubfile to /install/postscripts/_ssh/authorized_keys,because $pubfile does not exist.\n"
        );
}

#
# create /var/log/consoles if needed
#
if (!-d "/var/log/consoles")
{
    my $cmd = "/bin/mkdir -p /var/log/consoles";
    my $outref = xCAT::Utils->runcmd("$cmd", 0);
    if ($::RUNCMD_RC != 0)
    {
        xCAT::MsgUtils->message('E',
                             "Could not create /var/log/consoles directory.\n");
    }
    else
    {
        xCAT::MsgUtils->message('I', "Created /var/log/consoles directory.\n");
    }
}

if ($::osname eq 'AIX')
{
    if (!-f "/usr/sbin/conserver")
    {
        my $cmd = "ln -sf /opt/freeware/sbin/conserver /usr/sbin/conserver";
        my $outref = xCAT::Utils->runcmd("$cmd", 0);
        if ($::RUNCMD_RC != 0)
        {
            xCAT::MsgUtils->message(
                'E',
                "Could not ln -sf /opt/freeware/sbin/conserver /usr/sbin/conserver.\n"
                );
        }
        else
        {
            xCAT::MsgUtils->message('I',
                  "ln -sf /opt/freeware/sbin/conserver /usr/sbin/conserver.\n");
        }
    }
    if (!-f "/usr/bin/console")
    {
        $cmd = "ln -sf /opt/freeware/bin/console /usr/bin/console";
        $outref = xCAT::Utils->runcmd("$cmd", 0);
        if ($::RUNCMD_RC != 0)
        {
            xCAT::MsgUtils->message(
                'E',
                "Could not ln -sf /opt/freeware/bin/console /usr/bin/console.\n"
                );
        }
        else
        {
            xCAT::MsgUtils->message('I',
                        "ln -sf /opt/freeware/bin/console /usr/bin/console.\n");
        }
    }

	$cmd = "lssrc -a | grep conserver >/dev/null 2>&1";
    $outref = xCAT::Utils->runcmd("$cmd", 0);
    if ($::RUNCMD_RC != 0)
    {
        $cmd =
          "mkssys -p /opt/freeware/sbin/conserver -s conserver -u 0 -S -n 15 -f 15 -a \"-o -O1 -C /etc/conserver.cf\"";
        $outref = xCAT::Utils->runcmd("$cmd", 0);
        if ($::RUNCMD_RC != 0)
        {
            xCAT::MsgUtils->message('E',
                                    "Could not add subsystem conserver.\n");
        }
        else
        {
            xCAT::MsgUtils->message('I', "Add subsystem conserver.\n");
        }
    }
}

# some Linux-only config
if ($::osname eq 'Linux')
{

    my $changed_exports = 0;

    #
    #  add tftpboot to /etc/exports - if needed
    #

    my $cmd = "/bin/cat /etc/exports | grep '/tftpboot'";
    my $outref = xCAT::Utils->runcmd("$cmd", -1);
    if ($::RUNCMD_RC != 0)
    {

        # ok - then add this entry
        #SECURITY: this has potential for sharing private host/user keys
        my $cmd =
          "/bin/echo '/tftpboot *(rw,root_squash,sync)' >> /etc/exports";
        my $outref = xCAT::Utils->runcmd("$cmd", 0);
        if ($::RUNCMD_RC != 0)
        {
            xCAT::MsgUtils->message('E',
                                   "Could not update the /etc/exports file.\n");
        }
        else
        {
            xCAT::MsgUtils->message('I',
                                 "Added /tftpboot to the /etc/exports file.\n");
            $changed_exports++;
        }
    }

    #
    #  add /install to /etc/exports - if needed
    #

    my $cmd = "/bin/cat /etc/exports | grep '/install'";
    my $outref = xCAT::Utils->runcmd("$cmd", -1);
    if ($::RUNCMD_RC != 0)
    {

        # ok - then add this entry
        #SECURITY: this has potential for sharing private host/user keys
        my $cmd =
          "/bin/echo '/install *(ro,no_root_squash,sync)' >> /etc/exports";
        my $outref = xCAT::Utils->runcmd("$cmd", 0);
        if ($::RUNCMD_RC != 0)
        {
            xCAT::MsgUtils->message('E',
                                   "Could not update the /etc/exports file.\n");
        }
        else
        {
            xCAT::MsgUtils->message('I',
                                  "Added /install to the /etc/exports file.\n");
            $changed_exports++;
        }
    }

    if ($changed_exports)
    {

        # restart nfs
        my $cmd    = "/sbin/service nfs restart";
        my $outref = xCAT::Utils->runcmd("$cmd", 0);

        my $cmd = "/sbin/chkconfig nfs on";
        my $outref = xCAT::Utils->runcmd("$cmd", 0);
        if ($::RUNCMD_RC != 0)
        {
            xCAT::MsgUtils->message('E', "Could not enable NFS.\n");
        }
        else
        {
            xCAT::MsgUtils->message('I', "NFS has been restarted.\n");
        }
    }
}    # - some Linux-only config

#
# create basic site definition
#
my $hname = `hostname`;
chomp $hname;

# some values common to both AIX & Linux
my $xcatport   = "3001";
my $xcatiport  = "3002";
my $tftpdir    = "/tftpboot";
my $installdir = "/install";

my ($name, $aliases, $addrtype, $length, @addrs) = gethostbyname($hname);
my $master = inet_ntoa($addrs[0]);

# set value based on OS
my ($domain, $timezone);
if ($::osname eq 'AIX')
{
    my ($name, $rest) = split('\.', $hname);
    if ($rest)
    {
        ($domain = $hname) =~ s/^.*?\.//;
    }
    else
    {
        $domain = "";
    }

    $timezone = $ENV{'TZ'};
}
else
{
    $domain = `hostname -d`;
    my $tz;
    if (-f "/etc/redhat-release")
    {

        # on Redhat look for "ZONE"
        $tz = `grep ^ZONE /etc/sysconfig/clock|cut -d= -f 2|sed -e 's/"//g'`;
    }
    else
    {

        # on SuSE look for "TIMEZONE"
        $tz =
          `grep ^TIMEZONE /etc/sysconfig/clock|cut -d= -f 2|sed -e 's/"//g'`;
    }
    $timezone = $tz;
}

chomp $timezone;
chomp $master;
chomp $domain;

# create basic site definition
if ((!-r "/etc/xcat/site.sqlite") || $::FORCE)
{
    my $chtabcmds;
    $chtabcmds = "$::XCATROOT/sbin/chtab key=xcatdport site.value=$xcatport;";
    $chtabcmds .= "$::XCATROOT/sbin/chtab key=xcatiport site.value=$xcatiport;";
    $chtabcmds .= "$::XCATROOT/sbin/chtab key=tftpdir site.value=$tftpdir;";
    $chtabcmds .=
      "$::XCATROOT/sbin/chtab key=installdir site.value=$installdir;";
    $chtabcmds .= "$::XCATROOT/sbin/chtab key=master site.value=$master;";
    $chtabcmds .= "$::XCATROOT/sbin/chtab key=domain site.value=$domain;";
    if ($::osname eq 'Linux')
    {
        $chtabcmds .=
          "$::XCATROOT/sbin/chtab key=timezone site.value=$timezone";
    }
    if ($::osname eq 'AIX')
    {
        $chtabcmds .= "$::XCATROOT/sbin/chtab key=useSSHonAIX site.value=yes;";
        $chtabcmds .=
          "$::XCATROOT/sbin/chtab key=consoleondemand site.value=yes;";
    }

    my $outref = xCAT::Utils->runcmd("$chtabcmds", 0);
    if ($::RUNCMD_RC != 0)
    {
        xCAT::MsgUtils->message('E', "Could not create site definition.\n");
    }
    else
    {
        xCAT::MsgUtils->message('I', "Updated cluster site definition.\n");
    }
}

# create default postscript list in postscripts table
if ((!-r "/etc/xcat/postscripts.sqlite") || $::FORCE)
{
    my $chtabcmds;
    if ($::osname eq 'AIX')
    {
        $chtabcmds =
          "$::XCATROOT/sbin/chtab node=xcatdefaults postscripts.postscripts='syslog,aixremoteshell';";
    }
    else
    {
        $chtabcmds =
          "$::XCATROOT/sbin/chtab node=xcatdefaults postscripts.postscripts='syslog,remoteshell';";
    }

    $chtabcmds .=
      "$::XCATROOT/sbin/chtab node=service postscripts.postscripts='servicenode';";

    my $outref = xCAT::Utils->runcmd("$chtabcmds", 0);
    if ($::RUNCMD_RC != 0)
    {
        xCAT::MsgUtils->message('E',
                                "Could not create postscripts definition.\n");
    }
    else
    {
        xCAT::MsgUtils->message('I', "Created postscripts definition.\n");
    }
}

# create basic policy definition.
if ((!-r "/etc/xcat/policy.sqlite") || $::FORCE)
{
    my $chtabcmds;
    if ($::osname eq 'AIX')
    {
        $chtabcmds =
          "$::XCATROOT/sbin/chtab priority=1 policy.name=root policy.rule=allow;";
        $chtabcmds .=
          "$::XCATROOT/sbin/chtab priority=1.2 policy.name=$hname policy.rule=allow;";
        $chtabcmds .=
          "$::XCATROOT/sbin/chtab priority=4.4 policy.commands=getpostscript policy.rule=allow;";
        $chtabcmds .=
          "$::XCATROOT/sbin/chtab priority=4.5 policy.commands=getcredentials policy.rule=allow";
    }
    else
    {
        $chtabcmds =
          "$::XCATROOT/sbin/chtab priority=1 policy.name=root policy.rule=allow;";
        $chtabcmds .=
          "$::XCATROOT/sbin/chtab priority=2 policy.commands=getbmcconfig policy.rule=allow;";
        $chtabcmds .=
          "$::XCATROOT/sbin/chtab priority=3 policy.commands=nextdestiny policy.rule=allow;";
        $chtabcmds .=
          "$::XCATROOT/sbin/chtab priority=4 policy.commands=getdestiny policy.rule=allow;";
        $chtabcmds .=
          "$::XCATROOT/sbin/chtab priority=4.4 policy.commands=getpostscript policy.rule=allow;";
        $chtabcmds .=
          "$::XCATROOT/sbin/chtab priority=4.5 policy.commands=getcredentials policy.rule=allow";
    }
    my $outref = xCAT::Utils->runcmd("$chtabcmds", 0);
    if ($::RUNCMD_RC != 0)
    {
        xCAT::MsgUtils->message('E', "Could not create policy definition.\n");
    }
    else
    {
        xCAT::MsgUtils->message('I', "Created policy definition.\n");
    }
}

#
# set up syslog
#
# (use postscript to set up syslog -- leaving old code for now in case it
#  did something differnt)
my $cmd = "/install/postscripts/syslog";
my $outref = xCAT::Utils->runcmd("$cmd", 0);
if ($::RUNCMD_RC != 0)
{
    xCAT::MsgUtils->message('E', "Could not set up syslog.\n");
}
else
{
    xCAT::MsgUtils->message('I', "syslog has been set up.\n");
}

#  <old syslog setup code -- delete after new code is well verified>
#  if backup file exists assume it's already set up
#if (( ! -r "/etc/syslog.conf.ORIG" ) || $::FORCE) {
#	my $syslogcmds;
#	$syslogcmds = "cp /etc/syslog.conf /etc/syslog.conf.ORIG;";
#	$syslogcmds .= "echo '*.debug   /var/log/localmessages' > /etc/test.tmp;";
#	$syslogcmds .= "echo '*.crit   /var/log/localmessages' >> /etc/test.tmp;";
#	$syslogcmds .= "cat /etc/test.tmp >> /etc/syslog.conf;";
#	$syslogcmds .= "rm /etc/test.tmp;";
#	$syslogcmds .= "touch /var/log/localmessages;";
#	if ($::osname eq 'AIX') {
#		$syslogcmds .= "stopsrc -s syslogd;";
#		$syslogcmds .= "startsrc -s syslogd;";
#	} else {
#		$syslogcmds .= "/etc/init.d/syslog stop;";
#		$syslogcmds .= "/etc/init.d/syslog start;";
#	}
#
#	my $outref = xCAT::Utils->runcmd("$syslogcmds", 0);
#	if ($::RUNCMD_RC  != 0)
#	{
#    	xCAT::MsgUtils->message('E', "Could not set up syslog.\n");
#	} else {
#    	xCAT::MsgUtils->message('I', "Started syslog daemon.\n");
#	}
#}

#
#  set up the certificates for xcatd
#
if ((!-d "/etc/xcat/ca") || $::FORCE)
{
    xCAT::MsgUtils->message(
        'I',
        "\nSetting up basic certificates.  Respond with a \'y\' when prompted.\n\n"
        );
    my $cmd =
      "echo 'y\ny\ny\ny' |$::XCATROOT/share/xcat/scripts/setup-xcat-ca.sh 'xCAT CA'";
    xCAT::MsgUtils->message('I', "Running $cmd\n");
    my $rc = system($cmd);
    if ($rc >> 8)
    {
        xCAT::MsgUtils->message('E',
                        "Could not create xCAT certificate in /etc/xcat/ca.\n");
    }
    else
    {
        xCAT::MsgUtils->message('I', "Created xCAT certificate.\n");
    }
}

#  copy to postscript directory
my $cmd    = "/bin/rm -rf /install/postscripts/ca >/dev/null 2>&1";
my $outref = xCAT::Utils->runcmd("$cmd", 0);
my $cmd    = "/bin/mkdir -p /install/postscripts/ca/certs";
my $outref = xCAT::Utils->runcmd("$cmd", 0);
if ($::RUNCMD_RC != 0)
{
    xCAT::MsgUtils->message('E',
                 "Could not create /install/postscripts/ca/certs directory.\n");
}
else
{
    xCAT::MsgUtils->message('I',
                          "Created /install/postscripts/ca/certs directory.\n");
}
my $cmd = "/bin/cp -r /etc/xcat/ca/* /install/postscripts/ca";
my $outref = xCAT::Utils->runcmd("$cmd", 0);
if ($::RUNCMD_RC != 0)
{
    xCAT::MsgUtils->message(
        'E',
        "Could not copy /etc/xcat/ca/* to  /install/postscripts/ca directory.\n"
        );
}
else
{
    xCAT::MsgUtils->message('I',
               "Copied /etc/xcat/ca/* to /install/postscripts/ca directory.\n");
}

if ((!-d "/etc/xcat/cert") || $::FORCE)
{
    my $cmd =
      "echo 'y\ny\ny\ny' |$::XCATROOT/share/xcat/scripts/setup-server-cert.sh $hname";
    xCAT::MsgUtils->message('I', "Running $cmd\n");
    my $rc = system($cmd);
    if ($rc >> 8)
    {
        xCAT::MsgUtils->message('E',
                      "Could not create xCAT certificate in /etc/xcat/cert.\n");
    }
    else
    {
        xCAT::MsgUtils->message('I', "Created xCAT certificate.\n");
    }
}

#  copy to postscript directory
my $cmd    = "/bin/rm -rf /install/postscripts/cert >/dev/null 2>&1";
my $outref = xCAT::Utils->runcmd("$cmd", 0);
my $cmd    = "/bin/mkdir -p /install/postscripts/cert";
my $outref = xCAT::Utils->runcmd("$cmd", 0);
if ($::RUNCMD_RC != 0)
{
    xCAT::MsgUtils->message('E',
                     "Could not create /install/postscripts/cert directory.\n");
}
else
{
    xCAT::MsgUtils->message('I',
                            "Created /install/postscripts/cert directory.\n");
}
my $cmd = "/bin/cp -r /etc/xcat/cert/* /install/postscripts/cert";
my $outref = xCAT::Utils->runcmd("$cmd", 0);
if ($::RUNCMD_RC != 0)
{
    xCAT::MsgUtils->message(
        'E',
        "Could not copy /etc/xcat/cert/* to  /install/postscripts/cert directory.\n"
        );
}
else
{
    xCAT::MsgUtils->message('I',
           "Copied /etc/xcat/cert/* to /install/postscripts/cert directory.\n");
}

if ((!-r "$::root/.xcat/client-key.pem") || $::FORCE)
{

    my $cmd =
      "echo 'y\ny\ny\ny' |$::XCATROOT/share/xcat/scripts/setup-local-client.sh root";
    xCAT::MsgUtils->message('I', "Running $cmd\n");
    my $rc = system($cmd);
    if ($rc >> 8)
    {
        xCAT::MsgUtils->message('E',
               "Could not create xCAT certificate in /.xcat/client-key.pem.\n");
    }
    else
    {
        xCAT::MsgUtils->message('I', "Created xCAT certificate.\n");
    }
}

#  copy to postscript directory
my $cmd    = "/bin/rm -rf /install/postscripts/_xcat >/dev/null 2>&1";
my $outref = xCAT::Utils->runcmd("$cmd", 0);
my $cmd    = "/bin/mkdir -p /install/postscripts/_xcat";
my $outref = xCAT::Utils->runcmd("$cmd", 0);
if ($::RUNCMD_RC != 0)
{
    xCAT::MsgUtils->message('E',
                    "Could not create /install/postscripts/_xcat directory.\n");
}
else
{
    xCAT::MsgUtils->message('I',
                            "Created /install/postscripts/_xcat directory.\n");
}
my $cmd = "/bin/cp -r $::root/.xcat/* /install/postscripts/_xcat";
my $outref = xCAT::Utils->runcmd("$cmd", 0);
if ($::RUNCMD_RC != 0)
{
    xCAT::MsgUtils->message(
        'E',
        "Could not copy $::root/.xcat/* to  /install/postscripts/_xcat directory.\n"
        );
}
else
{
    xCAT::MsgUtils->message('I',
           "Copied $::root/.xcat/* to /install/postscripts/_xcat directory.\n");
}
my $cmd = "/bin/cp -r /etc/xcat/ca/certs/* /install/postscripts/ca/certs";
my $outref = xCAT::Utils->runcmd("$cmd", 0);
if ($::RUNCMD_RC != 0)
{
    xCAT::MsgUtils->message(
        'E',
        "Could not copy /etc/xcat/ca/certs/* to  /install/postscripts/ca/certs directory.\n"
        );
}
else
{
    xCAT::MsgUtils->message(
        'I',
        "Copied /etc/xcat/ca/certs* to /install/postscripts/ca/certs directory.\n"
        );
}

#
# if there are xcatd processes then stop them
#
my @xpids = xCAT::Utils->runcmd("ps -ef\|grep \"xcatd\"", 0);
if ($#xpids >= 1)
{    # will have at least "0" for the grep
    xCAT::MsgUtils->message('I', "Stopping xcatd processes....\n");
    foreach $ps (@xpids)
    {

        $ps =~ s/^\s+//;    # strip any leading spaces
        my ($uid, $pid, $ppid, $desc) = split /\s+/, $ps;

        # if $ps contains "grep" then it's not one of the daemon processes
        if ($ps !~ /grep/)
        {

            #	    	print "pid=$pid\n";
            my $cmd = "/bin/kill -9 $pid";
            xCAT::Utils->runcmd($cmd, 0);
            if ($::RUNCMD_RC != 0)
            {
                xCAT::MsgUtils->message('E',
                                        "Could not stop xcatd process $pid.\n");
            }
        }
    }
}

#
#  start xcatd
#
xCAT::MsgUtils->message('I', "Starting xcatd.....\n");
my $xcmd;
if ($::osname eq 'AIX')
{
    $xcmd = "$::XCATROOT/sbin/xcatd &";
}
else
{
    $xcmd = "/etc/init.d/xcatd start";
}

my $outref = xCAT::Utils->runcmd("$xcmd", 0);
if ($::RUNCMD_RC != 0)
{
    xCAT::MsgUtils->message('E', "Could not start xcatd.\n");
}

# for AIX systems add xcatd to the /etc/inittab file
#	and add /install/postscripts to /etc/exports
if ($::osname eq 'AIX')
{
    my $mkitab_cmd =
      'mkitab "xcatd:2:once:/opt/xcat/sbin/xcatd > /dev/console 2>&1" > /dev/null 2>&1';
    my $rc = system($mkitab_cmd);

    # check if /install/postscripts is in /etc/exports
    my $catcmd =
      "/bin/cat /etc/exports 2>&1 | grep '/install/postscripts ' >/dev/null 2>&1";
    my $outref = xCAT::Utils->runcmd("$catcmd", -1);
    if ($::RUNCMD_RC != 0)
    {

        # if not add it and make sure it is exported
        my $ecmd =
          "echo '/install/postscripts -ro' >> /etc/exports; exportfs -a";
        my $outref2 = xCAT::Utils->runcmd("$ecmd", -1);
        if ($::RUNCMD_RC != 0)
        {
            xCAT::MsgUtils->message('E',
                                   "Could not update the /etc/exports file.\n");
        }
    }
}

# more - Linux-only config
if ($::osname eq 'Linux')
{

    #Zap the almost certainly wrong pxelinux.cfg file
    if (-f "/tftpboot/pxelinux.cfg/default")
    {
        $cmd = "/bin/rm /tftpboot/pxelinux.cfg/default";
        my $outref = xCAT::Utils->runcmd("$cmd", 0);
        if ($::RUNCMD_RC != 0)
        {
            xCAT::MsgUtils->message('E',
                           "Could not remove /tftpboot/pxelinux.cfg/default\n");
        }
        else
        {
            xCAT::MsgUtils->message('I',
                                   "Removed /tftpboot/pxelinux.cfg/default.\n");
        }
    }

    # run mknb - only needed for Intel platforms for now
    if ($::arch eq "x86_64" || $::arch eq "x86")
    {
        foreach my $ar (qw(x86 x86_64 ppc64))
        {
            my $cmd = "$::XCATROOT/sbin/mknb $ar";
            my $outref = xCAT::Utils->runcmd("$cmd", 0);
            if ($::RUNCMD_RC != 0)
            {
                xCAT::MsgUtils->message('E',
                        "The mknb $ar command returned error: $::RUNCMD_RC.\n");
            }
            else
            {
                xCAT::MsgUtils->message('I',
                               "The mknb $ar command was run with no error.\n");
            }
        }
    }

    # run makenetworks
    my $cmd = "$::XCATROOT/sbin/makenetworks";
    my $outref = xCAT::Utils->runcmd("$cmd", 0);
    if ($::RUNCMD_RC != 0)
    {
        xCAT::MsgUtils->message('E',
                    "The makenetworks command returned error: $::RUNCMD_RC.\n");
    }
    else
    {
        xCAT::MsgUtils->message('I',
                           "The makenetworks command was run with no error.\n");
    }

    # set the nameserver in the site table
    my @names =
      xCAT::Utils->runcmd(
                       "/bin/grep nameserver /etc/resolv.conf | cut -d' ' -f 2",
                       0);
    my $ns     = join(',', @names);
    my $cmd    = "$::XCATROOT/sbin/chtab key=nameservers site.value=$ns";
    my $outref = xCAT::Utils->runcmd("$cmd", 0);
    if ($::RUNCMD_RC != 0)
    {
        xCAT::MsgUtils->message('E',
                           "The chtab command returned error: $::RUNCMD_RC.\n");
    }
    else
    {
        xCAT::MsgUtils->message('I',
             "Updated the site definition with the value of the nameserver.\n");
    }

    # restart httpd
    my $cmd;
    if (-e "/etc/init.d/apache2")
    {    #for sles
        $cmd = "/etc/init.d/apache2 stop; /etc/init.d/apache2 start";
    }
    else
    {
        $cmd = "/etc/init.d/httpd stop; /etc/init.d/httpd start";
    }
    my $outref = xCAT::Utils->runcmd("$cmd", 0);
    if ($::RUNCMD_RC != 0)
    {
        xCAT::MsgUtils->message('E', "Could not restart httpd.\n");
    }
    else
    {
        xCAT::MsgUtils->message('I', "httpd has been restarted.\n");
    }

    # enable httpd
    if (-e "/etc/init.d/apache2")
    {    #for sles
        $cmd = "/sbin/chkconfig apache2 on";
    }
    else
    {
        $cmd = "/sbin/chkconfig httpd on";
    }
    my $outref = xCAT::Utils->runcmd("$cmd", 0);
    if ($::RUNCMD_RC != 0)
    {
        xCAT::MsgUtils->message('E', "Could not enable httpd.\n");
    }
    else
    {
        xCAT::MsgUtils->message('I', "httpd has been enabled.\n");
    }

    my $linux_note =
      "xCAT is now installed, it is recommended to tabedit networks \nand set a dynamic ip address range on any networks where nodes \nare to be discovered. Then, run makedhcp -n to create a new dhcpd \nconfiguration file, and \/etc\/init.d\/dhcpd restart. Either examine sample \nconfiguration templates, or write your own, or specify a value per \nnode with nodeadd or tabedit.\n";
    xCAT::MsgUtils->message('I', $linux_note);

}    #End - more - Linux-only config

exit;

#####################################
#  subroutines
#####################################

sub usage
{
    xCAT::MsgUtils->message('I', "Usage:\n");
    xCAT::MsgUtils->message(
        'I',
        "xcatconfig - Performs basic xCAT configuration on an xCAT management node.\n\n"
        );
    xCAT::MsgUtils->message('I', "	xcatconfig [-h|--help] [-f|--force]\n\n");
}