# linuxAddPool.pl
#
# by Dean Giles 
# Version 1.0 
# November 9, 2007
#
# This Perl script creates an NSS volume on a specified NSS pool.
# 
# This script has been designed to be run on Linux. 
# The API set can be downloaded from  http://developer.novell.com/wiki/index.php/Virtual_File_Services_for_NetWare. 
# 
# The Perl script requires the name of an existing NSS pool, and the name of the new volume to create.
# as input.  It requires that NSS be installed and an NSS pool be present.
#

{
	# User help function
	if (@ARGV < 2 || $ARGV[0] eq "/?" || $ARGV[0] eq "-?") 
	{
		print "USAGE: perl linuxAddPool.pl VOLUME_NAME POOL_NAME\n";
		print "Where VOLUME_NAME is the name of the new NSS volume to create on the specified NSS pool.\n";
		print "Where POOL_NAME is the name of the existing NSS pool to add the volume to\n\n";
		
		print "Example: perl linuxAddVolume.pl POOL1 VOL1\n";
		print "this will create an NSS Volume named VOL1 on an existing NSS Pool called POOL1.\n";
		exit;
	}

	# Global Variables
	$volumeName = $ARGV[0];  #Name of the NSS volume that will be created.
	$poolName = $ARGV[1];	#Name of the NSS pool the volume will be created on.
	
	$file = "+</_admin/Manage_NSS/manage.cmd"; # This is the MSS management file we are accessing.
	$reply;	   # Variable used to read from file.
	$command; # This is the NSS xml command that will be the NSS request to the file.
	$error;  # Variable used to manage errors.
	
	# Open the file and check that it exists.
	open(NSSFILE, $file) 
  		or die "Error opening NSS management file ($!) on server";
	print "file is now open \n";

	$command = "<virtualIO><datastream name=\"command\"/></virtualIO>".
			"<nssRequest><volume><addVolume state=\"active\">".
			"<volumeName>$volumeName</volumeName>".
			"<poolName>$poolName</poolName>".
			"<ndsName/><context/><ndsPoolName/>".
		   	"</addVolume></volume></nssRequest>"; 
	# This is the command for initializing the virtual file for sending a command.
	print "File Name: $file \n";
	print "Request Sent: $command \n"; 

	
	if (!syswrite(NSSFILE, $command, length($command))) #Initialize the nss management file and write a command.
	{
		
		seek NSSFILE, 0, 0;	  # Make sure to start at the beginning of the file.
		sysread (NSSFILE, $error, 10000);  #Read the error message.
		
		print "Error writing initialization to management file. \n";
		print "$error  \n\n";	 #Print the error message to the screen.
		close (NSSFILE);
	}
	else
	{
		seek NSSFILE, 0, 0;	  # Make sure to start at the beginning of the file.
	
		sysread (NSSFILE, $reply, 10000);  #Read the reply.
	
		print "$reply  \n\n";	 #Print the reply to the screen.
		
		close (NSSFILE);
  	}
}