Additional Kernel Modules (cifs.ko and tun.ko)

[Guest DJ_Grom]

Hi there

Can you help me with my tablet.

I'm searching for Tun.ko module.

Tryed many versions of modules, but no one works.

insmod: init_module '/system/lib/modules/tun.ko' failed (Exec format error)

My tablet has android 4.0.3 and kernel 3.0.8-perf

255|app_102@android:/ # cat /proc/version

Linux version 3.0.8-perf (zhengqz@ubuntu10) (gcc version 4.4.3 (GCC) ) #2 PREEMPT Mon Aug 6 17:43:21 CST 2012

Can you help with compiling module.

Big Thanks

[Guest dalyer]

I think you're in the wrong place. This is a Huawei Ascend G300 forum....

[Guest DJ_Grom]

I understand that this topic not for other kings of tablets, but i'm googling much forums and can't find the answer.

I've read in this topic logical solution to the question i'm asking for help.

The essence of it is not in the device , but in the module.

[Guest dalyer]

Sorry - I didn't realise what the thread title was! :blush:

[Guest unaszplodrmann]

You can't just take any old tun module you've found; the module must match the exact kernel included with the OS on your tablet. Are you sure that the kernel in your tablet does not have tun support built-in, rather than as a module? You can find out with the following command:

stat /dev/tun

If it does, you will see output similar to:

File: '/dev/tun'

Size: 0	 Blocks: 0		 IO Block: 4096 character special file

Device: bh/11d Inode: 867		 Links: 1	 Device type: a,c8

Access: (0660/crw-rw----) Uid: ( 1000/ system) Gid: ( 1016/	 vpn)

Access: 2013-02-07 00:57:26.000000000

Modify: 2013-02-07 00:57:26.000000000

Change: 2013-02-07 00:57:26.000000000

I get the impression you've been trying various modules, none worked and now you're asking me to provide a kernel/module building tutorial. If you're not familiar with working with linux and kernel sources then I suggest that you either download a userspace OpenVPN implementation from Google Play, such as the official Android client (it doesn't require tun support in the kernel), or start reading up via the wealth of kernel building help already out there.

[Guest DJ_Grom]

Hi

Writes "stat:not found"

So I realized that I haven't module on my tab. And I can't neither one of them somehow connect.

I used DroidVPN, Vanilla for them requires the tun. App OpenVPN does not support login group configured on the cisco my organization.

So can you help?

[Guest unaszplodrmann]

I used DroidVPN, Vanilla for them requires the tun. App OpenVPN does not support login group configured on the cisco my organization.

So can you help?

DroidVPN uses its own protocol, so I am confused as to how it interoperates with a commercial Cisco device. My guess is that it doesn't. There are many VPN variants; you're attempting to put an square peg in a round hole, it seems. I could help you, but to be honest, I have no reason to do so. The modules I built were for a particular G300 kernel. The fact that I built them does not mean that I wish to spend my personal time compiling kernels for anyone who wants a particular module for a particular kernel for any other device out there.

But that doesn't mean you can't help yourself. If you absolutely must obtain a working tun module, then I suggest you install linux on a desktop machine, grab the kernel sources for your device and get reading some of the many tutorials out there.

[Guest DJ_Grom]

I have installed Linux, download the source code of the 8860,8800

Compiled module tun.ko

By the instruction http://blog.tataranovich.com/2012/08/android.html

but can't start it.

writes "Failed (Exec format error)"

Principle as with the other modules which are found.

Tried to write a version of the file and recompile the module as in the forum instructions. but nothing helps me.

command -urmane -r don't work.

Kernel shows 3.0.8-perf version

Straight trouble.

Can you help me what is wrong?

[Guest DJ_Grom]

modinfo tun.ko

дал результат

ilename: tun.ko

alias: devname:net/tun

alias: char-major-10-200

license: GPL

author: © 1999-2004 Max Krasnyansky <[email protected]>

description: Universal TUN/TAP device driver

depends:

vermagic: 3.0.8-perf preempt mod_unload modversions ARMv7

dmesg writed

tun: no symbol version for module_layout

Edited February 12, 2013 by DJ_Grom

[Guest unaszplodrmann]

command -urmane -r don't work.

Kernel shows 3.0.8-perf version

If that is what you typed, it won't work. You should use the following command to check the version of string of your kernel:

uname -a

The version string shown by 'modinfo tun.ko' must match that of your kernel (i.e. 3.0.8-perf-alphanumeric_string). You can also get the kernel version string from /proc/cpuinfo. Information on matching this string in your kernel build is provided in post #8. Also note that you will need to run 'make' to do a full kernel build, rather than 'make modules'.

[Guest DJ_Grom]

root@android:/ # uname -a

Linux localhost 3.0.8-perf #2 PREEMPT Mon Aug 6 17:43:21 CST 2012 armv7l GNU/Linux

root@android:/ # cat /proc/cpuinfo

Processor : ARMv7 Processor rev 2 (v7l)

BogoMIPS : 163.60

Features : swp half thumb fastmult vfp edsp neon vfpv3 tls

CPU implementer : 0x51

CPU architecture: 7

CPU variant : 0x1

CPU part : 0x00f

CPU revision : 2

Hardware : QCT MSM8X55 SURF

Revision : 0000

Serial : 0000000000000000

root@android:/ #

So what will be "3.0.8-perf-alphanumeric_string" ??

[Guest unaszplodrmann]

Sorry, I mean't /proc/version, not cpuinfo - derp.

OK, so your kernel version doesn't have a localversion appended; its is just 3.0.8-perf, which makes life easier. From what I can tell, you're getting 'tun: no symbol version for module_layout' because module.symvers is not being generated before the modules are built. Where it says:

make modules ARCH=arm CROSS_COMPILE=arm-eabi- O=build KERNELRELEASE=2.6.32.9-perf

You need to remove 'modules', so it's just 'make ARCH=arm...'

That command will build both the kernel image and the modules, so there no need do a 'make modules' afterwards.

[Guest DJ_Grom]

Tryed to compile whole kernel image, but tun.ko module doesn't work.

insmod: init_module '/system/lib/modules/tun.ko' failed (Exec format error)

Any suggestions?

[Guest summersuccess]

Please I meed your help to get tun.ko for my device infinix Joypad x700 kernel version 3.0.8-perf-g9d5151f. I have tried tun.ko installer what iI get is your device has no compartible modules. But going through this thread iI saw that iI have people that are guru. Please iI need your help has iI cacan't use openvpn on my device.

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Edited September 28, 2013 by summersuccess