berwinter/mbwe

CUPS for WD MyBook World Edition

MyBook World Edition White Light Print Server

Tested with Firmware 01.00.16, 01.00.18 and 01.01.16!

Updates:

• Firmware 01.01.16 tested
• Firmware 01.00.18 tested
• Addgroup for printing
• Printer test page
• Add printer with webinterface

Thanks to mad_ady and Fidatelo from mybookworld.wikidot.com for their feedback!

Preparations

SSH must be activated on the MyBook through the web interface. Then you can connect to it with putty (user: root / password: welc0me). First of all, Optware will be installed on the MBWE. The easy way is by using Frater's script:

wget -O prep_whitelight http://wd.mirmana.com/prep_whitelight
sh prep_whitelight

The installation may take a while.

CUPS installation

The necessary packages can be installed by the package management system:

/opt/bin/ipkg install cups
/opt/bin/ipkg install cups-pdf
/opt/bin/ipkg install cups-doc
/opt/bin/ipkg install cups-driver-gutenprint

"cups-doc" is needed for the web configuration interface. To get the printer work with CUPS an additional kernel module is needed.

Kernel module installation

I compiled this module from the Western Digital kernel (2.6.24.4) sourcen. The modules can be downloaded from GitHub:

mkdir /lib/modules/2.6.24.4/kernel/drivers/usb/class/
wget https://github.com/berwinter/mbwe/blob/master/modules/usblp.ko.whitelight?raw=true -O /lib/modules/2.6.24.4/kernel/drivers/usb/class/usblp.ko 

Now the module can be loaded with insmod. To do this on startup create a script with following content in /opt/etc/init.d/_SK88cupsd:

#!/bin/sh
#
#
#
case "$1" in
	start)
	        if ( [ ! -c /dev/lp0 ] ) then
	                mknod /dev/lp0 c 180 0
	        fi
	        /bin/chown sys:lp /dev/lp0

	        if ( !(lsmod | grep "^usblp" -q) ); then
	                 insmod /lib/modules/2.6.24.4/kernel/drivers/usb/class/usblp.ko
	        fi

	        if [ -n "`pidof cupsd`" ]; then
	                /usr/bin/killall cupsd 2>/dev/null
	        fi
	        /opt/sbin/cupsd
	;;
	stop)
	        if [ -n "`pidof cupsd`" ]; then
	                /usr/bin/killall cupsd 2>/dev/null
	        fi
	;;
	*)
	        echo "Usage: (start|stop)"
	        exit 1
esac

Create symbolic links for startup and shutdown:

chmod +x _SK88cupsd
ln -s _SK88cupsd S88cupsd
ln -s _SK88cupsd K88cupsd

Add the group lp for printing permissions:

addgroup lp

Configure CUPS

The config of CUPS is stored in /opt/etc/cups/cupsd.conf

# Show general information in error_log.
LogLevel info
MaxLogSize 100000
MaxJobs 50
User sys
Group lp
# Allow remote access
Port 631
MaxClients 10
<Location />
  Encryption Never
  AuthType None
  Deny From All
  Allow From 127.0.0.1
  Allow From 10.0.0.0/16
  # Allow shared printing and remote administration...
  # Order allow,deny
  # Allow @LOCAL
</Location>
<Location /printers>
  AuthType None
  Order Deny,Allow
  Deny From None
  Allow From All
</Location>
<Location /admin>
  Deny From All
  Allow From 127.0.0.1
  Allow From 10.0.0.0/16
  # Allow remote administration...
  # Order allow,deny
  # Allow @LOCAL
</Location>
# Share local printers on the local network.
Browsing On
BrowseOrder allow,deny
BrowseAddress @LOCAL
<Location /admin/conf>
  AuthType Default
  Require user @SYSTEM
  # Allow remote access to the configuration files...
  # Order allow,deny
  # Allow @LOCAL
</Location>

Please change the lines with 10.0.0.0/16 to your network.

Start CUPS:

/opt/etc/init.d/S88cupsd start

Check http://<ip_mbwe>:631/ for errors.

Printer configuration

The printer configuration is stored in /opt/etc/cups/printers.conf

<DefaultPrinter Brother_HL2030>
	Info Brother 2030 series
	Location Local Printer
	DeviceURI parallel:/dev/lp0
	State Idle
	StateTime 1252837845
	Accepting Yes
	Shared Yes
	JobSheets none none
	QuotaPeriod 0
	PageLimit 0
	KLimit 0
	OpPolicy default
	ErrorPolicy stop-printer
</Printer>

The important line is DeviceURI parallel:/dev/lp0, which is the printer interface.

Add printer (Webinterface)

You can also add a printer over the web interface (http://<ip_mbwe>:631/):

Administartion > Add printer > enter name > LPD/LPR Host or Printer > Device URI: parallel:/dev/lp0 > Raw > Raw Query

MacOSX Client

System Settings > Printer > Add Printer:

Choose IP and Internet Printing Protocol - IPP

Enter the IP Address of your MBWE and select the queue /printers/

Finally select a driver for your printer.

Ubuntu Client

System > Administration > Printer > New > Network Printer

Internet Printing Protocol Enter the IP Address of your MBWE and select the queue /printers/

Select driver:

Windows XP Client

Start > Printers and Faxes > Add Printer > Next

Network Printer ... > next > Connect to printer over the internet ... http://<ip_mbwe>:631/printers/

next > select driver

next > finish

Windows Vista Client

Start > Devices and Printers > Add Printer

Network Printer ... > next > Connect to printer over the internet ... http://<ip_mbwe>:631/printers/ eingeben

next > select driver

next > finish

Tips and Tricks

If the queue ist stopped after restart, you can solve the problem with following modification in /opt/etc/init.d/_SK88cupsd (Thanks to Fidatelo)

#!/bin/sh 
# 
# 
# 
case "$1" in 
	start) 
	        if ( [ ! -c /dev/lp0 ] ) then 
	                mknod /dev/lp0 c 180 0 
	        fi 
	        /bin/chown sys:lp /dev/lp0 

	        if ( !(lsmod | grep "^usblp" -q) ); then 
	                 insmod /lib/modules/2.6.24.4/kernel/drivers/usb/class/usblp.ko 
	        fi 

	        if [ -n "`pidof cupsd`" ]; then 
	                /usr/bin/killall cupsd 2>/dev/null 
	        fi 
	        /opt/sbin/cupsd
	        sleep 10
	        /opt/sbin/cupsenable HP-Deskjet-812c
	;; 
	stop) 
	        if [ -n "`pidof cupsd`" ]; then 
	                /usr/bin/killall cupsd 2>/dev/null 
	        fi 
	;; 
	*) 
	        echo "Usage: (start|stop)" 
	        exit 1 
esac

Contact

Bertram Winter [email protected]