Is the tun.ko module included in this custom?

I need to use Anyconnect Cisco Vpn or OpenVpn to connect to my office vpn and it seems that the tun.ko module is not present in the preloaded firmware.

I know that the tun module can be compiled from the kernel source, but I can't find the Kernel source used in the Pipo M9 tablet….

Thanks a lot for your reply.

I willl have a look to your links.

admin said It's not built in, I'm currently looking to compile a few modules for Linux Kernel 3.0.36 used on this tablet and a few other RK3188 based devices. I'll post when it's ready. If you want to help or have a look, there's a kernel here from our friends of Crew RKTablets: https://github.com/crewrktablets/rk3x_kernel_3.0.36 Cheers.

Here is another RK3188 Linux Kernel source code, just released: https://github.com/aloksinha2001/Linux3188

admin said

racjc said
I found these useful links for compiling the kernel with the module TUN enabled : http://www.ostalks.com/2011/03/21/how-to-compile-tun-ko-for-android-commtiva-z71/

and http://stevechui.blogspot.com/2011/10/compiling-kernel-modules-tunko-for.html

 

As I'm a windows user I will try to install a windows crosscompiler to do this and let you know what…:-)

Cross compiling is fine, but if you want to work on a Windows environment, you'd probably save yourself some time by setting up an Ubuntu system in a virtual machine, virtualbox is perfect for that.

Thanks a lot for your links and advice. I compiled the module and got a tun.ko that is working fine for me with Cisco Anyconnect Vpn.

Got virtualbox from your link, got a Unbuntu VM from here : http://virtualboxes.org/images/ubuntu/ ,

got the latest Kernel source from your link, got a arm crosscompiler from here : https://launchpad.net/gcc-arm-embedded

I changed the .config file included in the rk3188 kernel source (under the Linux3188-master folder) :

•  CONFIG_CROSS_COMPILE="arm-none-linux-gnueabi-"
•  CONFIG_LOCAL_VERSION="+"
•  #CONFIG_LOCALVERSION_AUTO is not set
•  CONFIG_TUN=m

I changed the setlocalversion script located in the script folder under the Linux3188-master folder

locate the following line:

if $short; then

     echo "+"

• change echo "+" to echo ""

I changed the path environment variable to include the crosscompiler path :

• "export PATH=$PATH:~/path to the crosscompiler binaries"

I set the environment properties for the compiler

• export ARCH=arm

And then compile the modules:

• go to "Linux3188-master" directory
• run "make modules"

The tun.ko will be located in drivers/net directory.

I copy back this file to the tablet (root folder of the sdcard), open a terminal on the tablet and run : su insmod /sdcard/tun.ko

Then the module is loaded. This last operation must be done after each time the device is rebooted.