Database Develop

[Q] OpenVpn Dev tun.ko Support with Gingerbread CF-Root-Image

Hi XDA-Dev-Team,
first of all ... thanks for the great work to get Tab working with Gingerbread.
I wan´t to use openvpn with the CF-Root-Image from Chainfire but it looks like there is no dev tun.ko module ?! So Open-Vpn does not work !!
I have tried to build my own kernel with tun-support as module from the Stock-Kernel i have downloaded from opensource.samsung.com. But when i take this module to the Tab i get an error from insmod like this:
insmod: invalid module format
dmesg:
tun: exports duplicate symbol tun_get_socket (owned by kernel)
So is it possible to build a rootes-kernel with this tun.ko module included or is there a other trick to get this work ?
Thanks
Mario

[GT-P6800][3g]cifs.ko - module

Cifs.ko module for galaxy tab 7.7 for stock galaxy kernel.
EDIT - pinkowl has updated the cifs module with nls_utf8 support.
Please see use his updated download link from post 12.
cheers
Should allow mounting of windows/samba shares.
from terminal (connectbot, script etc)
$ insmod cifs.ko (where you saved cifs.ko path)
Please could you test. For me it is working. however a few issues:
but video players stutter but so far bs player lite works best me for media network streaming.
edit - is it down to poor wifi performance - however same files play fine over http streaming from nas!
so proper dev required to looked into performance issues.
Using cifs manager to mount share & es explorer free edition allows you to copy to root etc.

Looks good to me ~8mins for 501M (what are you aiming for?):
P6810(wifi), RTN-16 router,Fedora16 samba share
bash-4.2# insmod cifs.ko
bash-4.2# mount -t cifs -o user=XXX,passwd=XXXXXX //192.168.2.113/XXX /data/local/tmp/mnt
bash-4.2# pwd
/data/local/tmp
bash-4.2# cd mnt
bash-4.2# ls
Desktop
Documents
Downloads
Music
Pictures
Public
Templates
Videos
eclipse
workspace
bash-4.2# time cp /data/local/tmp/junk_1 junk_1_back
real 8m20.644s
user 0m0.275s
sys 0m35.175s
bash-4.2# time cp junk_1_back /data/local/tmp/junk_2
real 7m46.706s
user 0m0.240s
sys 0m24.630s
bash-4.2#bash-4.2# md5sum ../junk_2
b6cee9135f8f4fd8ed03bfcc641de7b1 ../junk_2
bash-4.2# md5sum ../junk_1
b6cee9135f8f4fd8ed03bfcc641de7b1 ../junk_1
bash-4.2#
bash-4.2# ls -l ../junk*
-rw-rw-r-- root root 524288000 2012-01-22 03:42 junk_1
-rw-r--r-- root root 524288000 2012-01-22 04:35 junk_2

Awesome - worked perfectly with the root pack from this forum as well.
Now.... do you have tun.ko for this tab as well please?
Ive found a couple of versions - but they have not been compiled for this rom from the looks and do not load correctly.
Is the tun.ko file available at all yet?

Did another run with some optimisations:
Locked router to N mode instead of mixed
Discovered busybox cp poor performer, used /system/bin/cat instead
Tried kernel setting on
echo 1 > /proc/sys/net/ipv4/tcp_low_latency
Which definitely helps my ssh session, but not sure much impact on this test.
#same 501M file as previous post
#copy server to 7.7
time cat junk_1_back > ../junk_1_47
real 6m52.908s
user 0m0.240s
sys 0m24.390s
#copy from 7.7 to server
bash-4.2# time cat ../junk_1 > junk_1_xxx5
real 3m35.079s
user 0m0.040s
sys 0m19.890s
#copy server to /dev/null on 7.7
bash-4.2# time cat junk_1_xxx3 > /dev/null
real 6m45.223s
user 0m0.115s
sys 0m15.695s
All files intact, I think your module is good, I think kernel tcp params or wireless may need tweaks as suspected in wireless problem thread.
---------- Post added at 11:29 AM ---------- Previous post was at 11:17 AM ----------
cbdrift said:
Awesome - worked perfectly with the root pack from this forum as well.
Now.... do you have tun.ko for this tab as well please?
Ive found a couple of versions - but they have not been compiled for this rom from the looks and do not load correctly.
Is the tun.ko file available at all yet?
Click to expand...
Click to collapse
? Its built-in to kernel:
bash-4.2# uname -a
Linux localhost 2.6.36-P6810DTKL5-CL604290 #3 SMP PREEMPT Wed Dec 14 18:05:58 KST 2011 armv7l GNU/Linux
bash-4.2# ls -l /dev/tun
crw-rw---- vpn vpn 10, 200 2012-01-24 08:23 tun

ezynow:
thanks for sharing the cifs.ko module.
willl you be kind enough to teach me how to get my Windows 7 home premium hooked with cifs?
i tried and search the www and the closest solution i had is to view my shared folder using Ghostcommander with SMB plugin.
however, i cannot mount the share drive as a folder using either
cifsmanager or mount manager
i have tried to do regedit in my Win7 home premium since there is not "local security policy" program for this version of Win7.

Sorry for disturb
Plz, can anybody tell me what is this and how to use it?

i got an error when i add the iocharset=utf8 in the option at cifs manager, how can i make it use utf8?

I place this file in root directory of my sd card.
use terminal emulator program and type
insmod /mnt/sdcard/cifs.ko
but I got
insmod: init_module '/mnt/sdcard/cifs.ko' failed (Operation not permitted)
what should i do
Sent from my GT-P6800 using xda premium

theerachai said:
I place this file in root directory of my sd card.
use terminal emulator program and type
insmod /mnt/sdcard/cifs.ko
but I got
insmod: init_module '/mnt/sdcard/cifs.ko' failed (Operation not permitted)
what should i do
Sent from my GT-P6800 using xda premium
Click to expand...
Click to collapse
try from root
su
then insmod /pathtocifs.ko/

solved, thank you very much
Sent from my GT-P6800 using xda premium

The issues with video playback is not really with cifs, but with caching done by the players.
Typically, a player streaming over http expects a long delay and will use a larger buffer. Playing over cifs, the player will think it's locally stored and no buffer is necessary. That lack of buffer is causing the problems.

I have compiled the nls_utf8.ko module as well as recompilied the module cifs.ko for those of you that needs it. Files are attached in this post.
This is for the stock kernel from the LA2 firmware which I am using. If you are using the stock kernel from Samsung, this should work for you.
If this helps you, pls click on the "thanks" link.

Thanks for this module. I've known about cifs but never tried it before. Now I thought I'd give it a go and it's great. Had a few initial noob problems but now all OK. And using Cifs Manager makes mounting my NAS a breeze.
I can watch all my 720p video files stored on my NAS. Using BS player as suggested by ezynow.. Thanks ezynow!

Thank
Tested ,work well .

pinkowl said:
If this helps you, pls click on the "thanks" link.
Click to expand...
Click to collapse
I'm new here.
can you tell me where the "thanks" link is? pls
because your file helps me a lot~

pinkowl said:
I have compiled the nls_utf8.ko module as well as recompilied the module cifs.ko for those of you that needs it. Files are attached in this post.
This is for the stock kernel from the LA2 firmware which I am using. If you are using the stock kernel from Samsung, this should work for you.
If this helps you, pls click on the "thanks" link.
Click to expand...
Click to collapse
Nice one - i will update the main thread & creditation to you for this

Thanks a lot for these modules. I use them to access shares on my home network.
I found only one small problem accessing shares on my Windows 7 x64 host. If I use iocharset=utf8 as a parameter I can see the segmentation fault message when trying to mount a share from this host. Without iocharset parameter it works ok (apparently all unicode filenames are not shown correctly)
Exactly the same setup works fine with shares from my router and unicode filenames are displayed correctly.

@original poster
Can you rebuild this for ICS, please?

m0bster said:
@original poster
Can you rebuild this for ICS, please?
Click to expand...
Click to collapse
You can't rebuild this until Samsung release the ICS source code used to compile the kernel. Hopefully they do so soon but I am not holding my breath.

New kernel released. Can anyone compile cifs.ko and nls_utf8.ko?

[KERNEL] Building additional modules for JB stock kernels

Some background info:
I'm the author of PPP Widget which is an app that enables mobile data connections on Android devices with USB host capabilities - even if they are WiFi-only.
It turned out that many Android devices have the drivers for 3G sticks already on board, included with the stock kernel. The one large exception are Samsung devices ...
I started to provide the missing drivers as modules (mostly "ppp_async" and "option" which depends on "usb_wwan"). That worked well for some Google devices and also for Samsung devices running ICS, using the source packages from
http://opensource.samsung.com/
In their JB kernels though, Samsung enabled the "MODVERSION" option. Furthermore, compiling the modules with the officially recommended toolchain resulted in a different "module_layout" checksum than in the modules provided in the firmware.
This prevents using any additonal modules on the devices. "insmod" refuses to load these modules.
The only explanation for this problem is that the custom device configuration provided in the source packages does not match the configuration of the device kernel.
This is the case for all GT-P31xx and GT-P51xx models as far as I can tell.
My take is that Samsung is required to provide the correct kernel configuration under the rules of the GPL. Maybe anyone else wants to contact Samsung on this behalf; I already did several times - still waiting for an answer ...

That's the reason why I build everyting from source including the GPU driver and lost exFAT support http://forum.xda-developers.com/showthread.php?t=1859227 and the boot image result http://forum.xda-developers.com/showthread.php?t=1855700 .

ketut.kumajaya said:
That's the reason why I build everyting from source including the GPU driver and lost exFAT support
Click to expand...
Click to collapse
Unfortunately, replacing the kernel is no option for end users. The modules I provide are going into a folder on the sdcard, and can be "insmod'ed" from there with no problem - once their magic string and the "modversions" are matching the kernel on the device. The latter is the wall I'm hitting ...

JFDee said:
Unfortunately, replacing the kernel is no option for end users. The modules I provide are going into a folder on the sdcard, and can be "insmod'ed" from there with no problem - once their magic string and the "modversions" are matching the kernel on the device. The latter is the wall I'm hitting ...
Click to expand...
Click to collapse
Thanx alot for such a great development. ...
Adi™
Creator Of Sungsonic™HD

I have received a reply from Samsung. They have updated the JB open source package for GT-P3110, GT-P5110 and GT-N7100 (which previously included a config file from 3.0.15 for a kernel version of 3.0.31 !!).
Unfortunately, the modversions of the compiled kernel are still different and incompatible. I have replied with these finding.
Waiting again ...
BTW, the only recent kernel config consistent with the actual device kernel that I have found is for the GT-N8000 (3.0.31). So it is possible to provide a matching configuration.

JFDee said:
I have received a reply from Samsung. They have updated the JB open source package for GT-P3110, GT-P5110 and GT-N7100 (which previously included a config file from 3.0.15 for a kernel version of 3.0.31 !!).
Unfortunately, the modversions of the compiled kernel are still different and incompatible. I have replied with these finding.
Waiting again ...
BTW, the only recent kernel config consistent with the actual device kernel that I have found is for the GT-N8000 (3.0.31). So it is possible to provide a matching configuration.
Click to expand...
Click to collapse
If You will start to work with kernel I'm willing to beta test with my P5110. Only issue for me is that I need to know what 3G dongle to buy (well need it anyway so would prefer an advice from someone who know something about it). I'm living in Poland and Ireland (once here once there) so I can even test LTE modems (well donations here, myself can spend up to ~50€ on 3G one) because in Wroclaw, Poland I heard it's quite good, also I got H+/H on SGSII here. While in Ireland signal is not THAT strong due to fact most of places are quite remote (except Dublin, Galway etc). Hope I can help in either way

This is what I wrote to Samsung concerning the botched configuration file provided with the latest GT-P3110 kernel source:
Thank you for the source code update.
However, I have asked for the kernel configuration that matches exactly the kernel on the GT-P3110.
I have compiled the kernel from the provided update, but the module layout checksum does *not* match the one from the kernel running on my device.
On the device: module_layout 0xb5a27644
From source: module_layout 0x143474f1
I have used the recommended toolchain "CodeSourcery 2010q1" and the unchanged config file provided with the source ("android_espresso_omap4430_r04_user_defconfig").
Please be aware that you are obliged by the GPL to provide the correct config file for the binary kernel that you are distributing.
As a side note: the configuration provided with the kernel source for the GT-N8000 *does* match the kernel on the device, so there is no doubt that it is possible to get the configuration right.
Other Android vendors are just enabling the "embedded" config file in the kernel, so that the correct configuration is simply available on the device as "/proc/config.gz". This is so much less trouble. I suggest that you enable this option for Samsung kernels too.
Regards,
...
Click to expand...
Click to collapse

The GT-N8010 is also in the same situation you describe - config for 3.0.15 and jb stock kernel at 3.0.31, can't build working modules for stock.

davp, there seems to have been some activity at the Samsung open source center after my messages.
I suggest you make yourself heard as well. Use the "Inquiry" button next to the package download link in the table for your device.
To be able to add working modules to the device, the kernel configuration for the source has to be 100% compatible. It does not matter if any closed drivers are missing as we don't want to replace the kernel - but all those general debugging config options should be correct.
BTW, there is a history of similar issues:
http://forum.xda-developers.com/showthread.php?t=1123643

The kernel source for the GT-P3110 has been updated once more, and this time they have fixed the configuration.
With the latest JB update we can actually build working modules for the current firmware.
I confirmed this to the Samsung people and reminded them of the other devices in need of this fix: GT-P3100, GT-P5100, GT-P5110, GT-N7100 and probably more (like the GT-N8010).

JFDee said:
The kernel source for the GT-P3110 has been updated once more, and this time they have fixed the configuration.
With the latest JB update we can actually build working modules for the current firmware.
I confirmed this to the Samsung people and reminded them of the other devices in need of this fix: GT-P3100, GT-P5100, GT-P5110, GT-N7100 and probably more (like the GT-N8010).
Click to expand...
Click to collapse
So for now we might get stock kernel which will support 3G modems via USB OTG? How about other kernels such as CM10.1?
I'm looking for good 3G dongle then Any advices?

Additional kernel modules for stock JB P31xx (tested) and P51xx (untested), contains:
- usb_wwan, ppp_async, and option module for PPP Widget
- dns_resolver, md4, and cifs module for cifs/samba filesystem support
- sunrpc, lockd, and nfs module for nfs filesystem support
Kernel config file attached.

FTDI Single Port Serial Driver added.

cifs.ko not working on P3100 JB 4.1.2 (stock rooted)
ketut.kumajaya said:
Additional kernel modules for stock JB P31xx (tested) and P51xx (untested), contains:
- usb_wwan, ppp_async, and option module for PPP Widget
- dns_resolver, md4, and cifs module for cifs/samba filesystem support
- sunrpc, lockd, and nfs module for nfs filesystem support
Kernel config file attached.
Click to expand...
Click to collapse
Hi ketut.kumajaya,
I'm trying to use cifs.ko but i get:
/system/lib/modules # insmod cifs.ko
insmod: can't insert 'cifs.ko': unknown symbol in module or invalid parameter
I have:
/system/lib/modules # uname -a
Linux localhost 3.0.31-1084989 #1 SMP PREEMPT Mon Mar 25 14:53:07 KST 2013 armv7l GNU/Linux
I tried other cirs.ko with same result.
Can you give me some clues of what can I do?
Thank you.

Try insmod in order:
insmod dns_resolver.ko
insmod md4.ko
insmod cifs.ko
If something goes wrong, see the kernel messages using dmesg.

ketut.kumajaya said:
Try insmod in order:
insmod dns_resolver.ko
insmod md4.ko
insmod cifs.ko
If something goes wrong, see the kernel messages using dmesg.
Click to expand...
Click to collapse
Great!!!
That's the solution.
In my Tab 10.1 4.0.4 I'm loading (different kernel and different modules, of course):
insmod cifs.ko
insmod md4.ko
insmod nls_utf8.ko
So I was not thinking I should use a different order.
Thank you.

[Q] CIFS + stock rom

hi,
as I understand, the only way to permanently mount the samba network share, is using CIFS modules:
(http://forum.xda-developers.com/showthread.php?t=1792190&highlight=cifs)
is there an 'easy' way (at least easier the this: http://forum.xda-developers.com/showthread.php?p=35189120&highlight=cifs+ko#post35189120 ) to 'get' CIFS modules work with stock rom/roms?
PS.
1. I know that there is a lot o file managers able to view samba share.
2. CM10 has CIFS modules and Yank555.lu kernel made by ausdim (http://forum.xda-developers.com/showthread.php?t=2167091&highlight=cifs), but what I'm intrested is stock rom

[Q] Kernel with Fuse Support for rooted Motorola Droid

I am searching for a way to use truecrypt on my Milestone (Droid). There are some efforts making it available by using the app Cryptonite
But you need to have a kernel which supports FUSE.
I currently run 2nd-boot-kernel and CM7.2.4f.
But it seems that it has no fuse-support. At least
Code:
cat /proc/filesystems/
ls /system/lib/modules/
does not list FUSE.
I can not post to the dev-forum, so i could ask there. Hopefully someone here can help me.
If I could build my own kernel, i would do it. At the moment I only have Windows 7 and Android SDK installed.
And I don't know the steps and which things are important.
greetings