Database Develop

[Q] DEVELOPERS, Need help to get VPN work (tun.ko)

Hi! I just created a tun.ko file for the current DK-Rom (Kernel 2.6.32.21-ge5a759b)
Here is an update-flash package with openvpn connection gui and tun.ko included.
http://www.megaupload.com/?d=CN3D0PRP
if i try to "insmod /system/lib/modules/tun.ko " i got an error: device / resource busy...
lsmod shows no tun.ko loaded...
Also tried before :
mkdir /dev/net
mknod /dev/net/tun c 10 200
Anyone an idea ?

Maybe i found the problem. Need some free time to get the fix to work.
BUT , (Cisco) VPN-Pack is on the WAY for Wildfire Froyo

try cm7, tun.ko is included on the rom.. also the openvpn app.. i got it working

Thanks for the Information. I would like to get it work with my rom.
ijestan said:
try cm7, tun.ko is included on the rom.. also the openvpn app.. i got it working
Click to expand...
Click to collapse
Sent from my HTC Wildfire

Now finally working vpn pack arrived !
Look into main thread.
This thread can be closed now...

Thread closed by OP request.

[Q] [KERNEL] ARMv6 vs ARMv7 cross-compile question / tun.ko for LG Revo

hello all -- ive mostly been a lurker (been too busy), but i finally found some time to try and get the ipsec vpn working on my stock-but-rooted LG Revo. despite some ardent googling, i couldn't find a working tun.ko that would work with vpc/VPN Connections. so i decided to compile my own.
i figure since there's certainly nothing in the LG Revo boards here specific to compiling tun.ko for the LG Revo, i'd start this thread and document my steps along the way. i figure other board users can use for reference etc. hope it's ok mods/admins!
the short version/TL;DR:
i have compiled my own tun.ko for my stock/rooted LG Revolution. i have the correct kernel version (etc) but am stuck because i dont seem to be able to compile ARMv7, only ARMv6. this is the error i receive when i try to insmod:
Code:
tun: version magic '2.6.32.9-perf preempt mod_unload ARMv6 ' should be '2.6.32.9-perf preempt mod_unload ARMv7 '
basically i need to compile it for ARMv7 not ARMv6. i don't know how.
the long version, aka the steps i took:
starting in a nice clean folder, download the linux kernel src specific to the version of the kernel on my rooted stock LG Revo. i obtained this earlier (you can check via Settings -> About Phone -> Kernel version. if you have a stock (rooted or not) LG Revolution it will be: 2.6.32.9-perf.
Code:
$ mkdir -p $HOME/tmp/lgrevosrc
$ export LGREVOSRC=$HOME/tmp/lgrevosrc
$ cd $LGREVOSRC
$ wget -q http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.32.9.tar.bz2
$ wget -q http://dl.google.com/android/android-sdk_r10-linux_x86.tgz
$ wget -q http://dl.google.com/android/ndk/android-ndk-r5b-linux-x86.tar.bz2
$ tar xjf linux-2.6.32.9.tar.bz2
$ tar xzf android-sdk_r10-linux_x86.tgz
$ tar xjf android-ndk-r5b-linux-x86.tar.bz2
earlier, i copied the config file for the kernel specific to my LG Revo by using Root Explorer and copying the /proc/config.gz file. i now copy this into my linux kernel src tree, being sure to gzunzip it first and to copy it to the src folder as ".config", not "config".
Code:
$ cd $LGREVOSRC/linux-2.6.32.9
$ gzip -d ~rickt/tmp/from_my_lgrevo/config.gz
$ cp ~rickt/tmp/from_my_lgrevo/config .config
now we have to edit the .config file and add the tun module so it will be compiled. i added the following line to the .config file:
Code:
CONFIG_TUN=m
now, we compile the modules, being sure to set the environment variables for the architecture we NEED, not the one we're compiling on:
Code:
$ export ARCH=arm
$ export CROSS_COMPILE=arm-eabi-
$ export PATH=$PATH:$LGREVOSRC/android-ndk-r5b/toolchains/arm-eabi-4.4.0/prebuilt/linux-x86/bin
$ make modules
HOSTCC scripts/basic/fixdep
HOSTCC scripts/basic/docproc
HOSTCC scripts/basic/hash
HOSTCC scripts/kconfig/conf.o
< snipped, for brevity >
LD [M] net/sched/cls_flow.ko
CC net/sched/sch_dsmark.mod.o
LD [M] net/sched/sch_dsmark.ko
$
let make sure the tun.ko module was compiled, and we'll see what type of arch it was compiled for:
Code:
$ find . -name tun.ko
./drivers/net/tun.ko
$ ls -l ./drivers/net/tun.ko
-rw-r--r-- 1 root root 190705 Aug 19 06:35 ./drivers/net/tun.ko
$ file ./drivers/net/tun.ko
./drivers/net/tun.ko: ELF 32-bit LSB relocatable, ARM, version 1 (SYSV), not stripped
$ strings ./drivers/net/tun.ko | grep -i arm
vermagic=2.6.32.9-perf preempt mod_unload ARMv6
BOOM! note the ARMv6. this is important, because when i try to insert the module into the kernel on my android (after copying it over, obviously) i get:
Code:
# insmod tun.ko
insmod: init_module 'tun.ko' failed (Exec format error)
ok, so i start nosing around in the logs to see what i can see, and i see:
Code:
<3>[122130.240509] tun: version magic '2.6.32.9-perf preempt mod_unload ARMv6 ' should be '2.6.32.9-perf preempt mod_unload ARMv7 '
so... i guess this was a long and drawn-out way of saying that i have a great desire to have a tun.ko for our beloved LG Revolution, but i'm not sure how to have gcc on a linux box cross-compile for ARMv7, not ARMv6.
anyone? bueller?

I work quite a bit with cross-compilers in my day job, but I haven't tried to use any of the pre-packaged ones in the Android SDK(s).. however, until I have time to play with them, the ARMv6 versus 7 probably relates to these 2 variables:
$ export ARCH=arm
$ export CROSS_COMPILE=arm-eabi-
Also, gcc has -march and -mtune params that can sometimes be used to select specific CPUs and/or sub-architectures within a main CPU family.. if someone (e.g. LG) gave out an SDK for the Revo specifically, their gcc would probably already be "spec'ed" to march and mtune for the specific CPU..so maybe the generic Android ARM gcc cross-compiler defaults to ARMv6.
I may have time to poke into this later, but it probably won't be today..
- Phil

I've been informed that GCC cannot output ARMv7. I think licensed developer tools are needed. Can anyone confirm this?
RMT.

GCC4.3 added ARMv7 support. This discussion seems to confirm the various details:
I think in GCC 4.3 is where you get ARMv7 architecture support, (see
http://gcc.gnu.org/gcc-4.3/changes.html), which is EABI and at GCC 4.4
you have "EABI-compatible profiling interface for EABI targets." (again see
http://gcc.gnu.org/gcc-4.4/changes.html).
So I've chosen to work on 4.4 just to be sure, and it also supports Cortex-A9, as
well as VFPv3 (yeah!).
Click to expand...
Click to collapse
Full discussion here:
http://freebsd.1045724.n5.nabble.com/ARMv7-EABI-Cross-Compiler-tp4201510p4201523.html
Depending on who is providing the cross-compiler you are trying to use, they may either be using something prior to gcc4.3, or, they are providing a compiler which has not been enabled with the ARMv7 target. You could try using Kegel's cross-tool with a recent gcc (4.4 or 4.5) to build your own ARMv7 cross-compiler, but not sure how deep you want to go with this!
- Phil

I haven't been able to get a working tun.ko for this either. I've having trouble compiling my own. Could you post the adapter you're working with?
I just saw a verizon update come down, but kernel is 2.6.32.9-perf [email protected] #1.

Bumping this ol' thread hoping that progress has been made or someone knows about a thread I missed. Trying (hoping) to get OpenVPN going with my Revo so I'm hoping there's a tun.ko available.

I successfully compiled a tun.ko for mine using the "crossdev" package on gentoo. Just setting ARCH=arm CROSS_COMPILE=arm-eabi- did the trick for me.
I believe older verions of gcc were not yet capable of producing ARMv7.
gcc 4.5.3 certainly is. I would try upgrading to that if possible and that ought to work.
I'd be happy to share my tun.ko with anyone that wants it as well...
Slightly unrelated, I also found that loading the module (insmod tun.ko) did not cause the /dev/net/tun node to be created for some reason...
a simple
Code:
mkdir /dev/net
mknod /dev/net/tun c 10 200
as root, and AFTER loading the module resolves that problem, at least until the next reboot. I haven't figured out how to get it to run a script at boot yet to automate it.
If anyone wants the tun.ko let me know and I'll upload it somewhere.

Bait-Fish said:
Bumping this ol' thread hoping that progress has been made or someone knows about a thread I missed. Trying (hoping) to get OpenVPN going with my Revo so I'm hoping there's a tun.ko available.
Click to expand...
Click to collapse
Blitz includes tun.ko
Sent from my VS910 4G using xda premium

nasaiya said:
I'd be happy to share my tun.ko with anyone that wants it as well...
Click to expand...
Click to collapse
Thanks you very much for the offer. I am a total noob as far as compiling goes!
mtmichaelson said:
Blitz includes tun.ko
Click to expand...
Click to collapse
Damn sweet! I never needed it before so that went right over my head previously. Can I simply extract it or would I have to be on BK? (which I'm not)
Sent from my VS910 4G using Tapatalk

I believe you need to install ClockWorkMod to flash blitz onto your phone. You can backup first and try it out safely with CWM. Just follow the instructions in the thread it's easy.
Here's my tun.ko for anyone that wants it. I found "openvpn installer" and "openvpn settings" apps perfect for my needs (only issue is I still have to manually add the device node -- even with blitzkrieg, but it's no big deal)
http://www.box.com/s/a50pnexofiej4in7s5h7

Bait-Fish said:
Thanks you very much for the offer. I am a total noob as far as compiling goes!
Damn sweet! I never needed it before so that went right over my head previously. Can I simply extract it or would I have to be on BK? (which I'm not)
Sent from my VS910 4G using Tapatalk
Click to expand...
Click to collapse
You could try pulling it from the blitz zip and dropping it in your /system/lib/modules and see if it works!
Sent from my VS910 4G using xda premium

Cool, thanks. I'll attempt the 'easy' way first.
Sent from my VS910 4G using Tapatalk

[KernelModule] Overclock

**** Do Not Repost! Link back to this thread! ****
*** Update: This works on Thrill/Optimus 3D. There are seperate kernel modules for Froyo/GingerBread/CyanogenMod kernels***
Here ya go... I prefer this method rather than hard coding changes in the kernel. Assuming you have both kernel modules extracted to /sdcard
Switch to root
Code:
$ su
Copy files from sdcard to /system/lib/modules directory - You only do this once
Code:
# cp /sdcard/symsearch.ko /system/lib/modules/symsearch.ko
# cp /sdcard/opperator.ko /system/lib/modules/opperator.ko
Load modules, always do symsearch.ko first - You do this every time you reboot
Code:
# insmod /system/lib/modules/symsearch.ko
# insmod /system/lib/modules/opperator.ko
Set Frequency - You do this when you want to change frequency - in hz, that's 6 additions Zero's to make Mhz
Code:
# echo 1188000000 > /proc/opperator
This uses SYMSEARCH by Skrilax_CZ
https://github.com/SkrilaxCZ
Inspired by Milestone Overclock by Tiago Sousa, but totally rewritten for omap kernel 2.6.35-7 and above.
http://code.google.com/p/milestone-overclock/
This is a stripped down version. I'm working on a fully featured version, that will allow you to play with voltage as well. There are some hurdles to overcome before that is ready for prime time... In the mean time, lets see what stock voltage can do... 1188 is my sweet spot on stock voltage, what is yours? I get up to 1235 without reboots, or real noticeable lags but the linkpacks are all over the place, where it stays in the 80's at 1188. And remember, the number is in hz a.k.a. cycles per second, so to get Mhz, you must add 'Six Zeroes' to the end of your desired Mhz.
* Note2Devs: Feel free to put this in your ROM, but please do credit me for the Overclock in your release, and link back to this thread. You can also post a link to your ROM here as a way to make myself and other aware of it. Thanks...
* Echts shows us how he integrate's the module into his own ROM. TY, Echts...
http://forum.xda-developers.com/showpost.php?p=19542521&postcount=52
* Thanks to greenbats for helping figure out the O3D gingerbread kernel issue!
** And don't ask to put it in an app. I won't be happy about that. I'm serious! **
Here go some of my Recording Engineer work...
http://www.youtube.com/watch?v=Je8K_hCej3s
http://www.youtube.com/watch?v=yfBfcdSL1pc
http://www.youtube.com/watch?v=iIU8DO4rdKI
http://www.youtube.com/watch?v=msavF7LIdvY

Essentially, hardware wise, the Thrill has exactly the same specs as the Optimus 3D ? I mean, CPU wise.

It's the same hardware

omgomg said:
Essentially, hardware wise, the Thrill has exactly the same specs as the Optimus 3D ? I mean, CPU wise.
Click to expand...
Click to collapse
Yes, give this a go on the O3D, the module is actually compiled against the cyanogenmod cosmo kernel, which is really for the O3D. Should work.

for test \

How do I install this on the optimus 3D?

greenbat said:
How do I install this on the optimus 3D?
Click to expand...
Click to collapse
No real installing... It's just the modules... You can throw them in /system/lib/modules, and then use an init script to load them up, then set the frequency, but don't do that until you know what works *STABLE* for you.
If you have a favorite ROM, let the dev know about this, and maybe they'll integrate it.
I'm not sure if custom kernels like acurateam's might be too different to work properly at this point. But it won't hurt to try. Just don't start loading it at boot right away.

tekahuna said:
No real installing... It's just the modules... You can throw them in /system/lib/modules, and then use an init script to load them up, then set the frequency, but don't do that until you know what works *STABLE* for you.
If you have a favorite ROM, let the dev know about this, and maybe they'll integrate it.
I'm not sure if custom kernels like acurateam's might be too different to work properly at this point. But it won't hurt to try. Just don't start loading it at boot right away.
Click to expand...
Click to collapse
Thanx for your advice and Great find!!!
I have send your xda link to acura. Hopefully he can integrate it.

greenbat said:
Thanx for your advice and Great find!!!
I have send your xda link to acura. Hopefully he can integrate it.
Click to expand...
Click to collapse
I didn't find this. I made it! First OC'd OMAP4 period! Unless you count RAZR's... hah

Great invention
tekahuna said:
I didn't find this. I made it! First OC'd OMAP4 period! Unless you count RAZR's... hah
Click to expand...
Click to collapse
Great invention and congratulations!

Great job.... we use to use this type of script in motorola defy and moto bravo. It was easier with those because of the 2nd init recovery booting.
Sent from my LG-P925 using XDA App

tekahuna said:
**** Do Not Repost! Link back to this thread! ****
Here ya go... I prefer this method rather than hard coding changes in the kernel. Assuming you have both kernel modules extracted to /sdcard
Switch to root
Code:
$ su
Copy files from sdcard to /system/lib/modules directory - You only do this once
Code:
# cp /sdcard/symsearch.ko /system/lib/modules/symsearch.ko
# cp /sdcard/opperator.ko /system/lib/modules/opperator.ko
Load modules, always do symsearch.ko first - You do this every time you reboot
Code:
# insmod /system/lib/modules/symsearch.ko
# insmod /system/lib/modules/opperator.ko
Set Frequency - You do this when you want to change frequency - in hz, that's 6 additions Zero's to make Mhz
Code:
# echo 1188000000 > /proc/opperator
Is it possible for you to change this into a scriptmanager file?
Click to expand...
Click to collapse

Type this in scriptmanager shell.

greenbat said:
tekahuna said:
**** Do Not Repost! Link back to this thread! ****
Here ya go... I prefer this method rather than hard coding changes in the kernel. Assuming you have both kernel modules extracted to /sdcard
Switch to root
Code:
$ su
Copy files from sdcard to /system/lib/modules directory - You only do this once
Code:
# cp /sdcard/symsearch.ko /system/lib/modules/symsearch.ko
# cp /sdcard/opperator.ko /system/lib/modules/opperator.ko
Load modules, always do symsearch.ko first - You do this every time you reboot
Code:
# insmod /system/lib/modules/symsearch.ko
# insmod /system/lib/modules/opperator.ko
Set Frequency - You do this when you want to change frequency - in hz, that's 6 additions Zero's to make Mhz
Code:
# echo 1188000000 > /proc/opperator
Is it possible for you to change this into a scriptmanager file?
Click to expand...
Click to collapse
What I'd really like is for the ROM making dev's to come to a consensus as to how to integrate this... Mainly, the best place to throw the script that does this at boot on these phones. I know how we did it on droid X, but I haven't dug deep enough into this phone just yet to be sure... I'll update the OP as methods improve and I get more feedback.
Click to expand...
Click to collapse

Or use callmearia kernel and make script for system/etc/init folder... havent tried his kernel but it should support the script at boot up. Acura roms should work that way too.
The way most roms use overclock is the init script that starts at boot...
Sent from my LG-P925 using XDA App

rdannar said:
Great job.... we use to use this type of script in motorola defy and moto bravo. It was easier with those because of the 2nd init recovery booting.
Sent from my LG-P925 using XDA App
Click to expand...
Click to collapse
Those would have been based on Milestone Overclock... Which is where I gained most of my knowledge by contributing to getting the droidx/2 side of things working. MO's method of manipulating frequency and voltage no longer works on OMAP4, or rather kernel 2.6.35+... I had to come up with a new way of doing things, which didn't fit well under the existing framework of MO. So, I started from scratch... This is just the tip of the iceberg... Basic, basic, basic...

i get insmod: init_module /system/lib/modules/symsearch.ko failed (exec format error).
What am i doing wrong?

I also get the same error: insmod: init_module '/system/lib/modules/symsearch.ko' failed (exec format error)
Is it because I have gingerbread?
Must I use froyo?

borelis said:
i get insmod: init_module /system/lib/modules/symsearch.ko failed (exec format error).
What am i doing wrong?
Click to expand...
Click to collapse
Both O3D's, huh? What kernel are you running? give me output of
# dmesg
and
# busybox uname -a
And if it's acurateam, a link to their kernel source

tekahuna said:
What kernel are you running? give me output of
# dmesg
and
# busybox uname -a
And if it's acurateam, a link to their kernel source
Click to expand...
Click to collapse
"LINK Boot_2.0 More RAM, No Lags, More Speed.." from acura. Think he uses stock kernel. Im on GB by the way.
Outputs is a bit over my head. Tell me how and i´ll provide it for you.

Compiling kernel modules...

Hey all. So I was looking at this cpu frequency governor for the razr:
http://forum.xda-developers.com/showthread.php?t=1367255
I was wondering how I could get this working on our devices, so, just for curiosity's sake, I copied it to the phone and ran insmod on it. It did a quick cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors and found the new governor listed, so I opened up SetCPU and set it as the governor. cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor told me, however, that I was still on mot_hotplug, so I switched to ondemand and then back to the eprj governor... still told me I'm on ondemand.
I figure that the razr's and droid 3's kernel modules are not binary-compatible, so I'm gonna need to recompile the module. How do I go about doing this?
Thanks.
-Zane Kaminski

I understand what your getting at but we can't flash kernels best you can do is port kernel modules
Sent from my XT862 using XDA

saintlikesniper said:
I understand what your getting at but we can't flash kernels best you can do is port kernel modules
Sent from my XT862 using XDA
Click to expand...
Click to collapse
Yeah... I wanna compile this module for the Droid 3.

ZaneKaminski said:
Yeah... I wanna compile this module for the Droid 3.
Click to expand...
Click to collapse
The source for the current 890 kernel is on Sourceforge.net under the Bionic's GPL software page.
Sent from my DROID3 using XDA

Would it be possible to build a kernel module to add loop device support? Would like to be able to chroot Ubuntu.
Sent from my DROID3 using Tapatalk 2

Q9Nap said:
Would it be possible to build a kernel module to add loop device support? Would like to be able to chroot Ubuntu.
Sent from my DROID3 using Tapatalk 2
Click to expand...
Click to collapse
loop devices are already supported. If your using linux installer from the market just ignore the warinngs. To manully mount a loop device.
Code:
# mount loop.img directory
If for some reason that doesn't work use losetup.
Code:
# losetup /dev/block/loop7 loop.img
# mount -t auto /dev/block/loop7 directory

eww245 said:
loop devices are already supported. If your using linux installer from the market just ignore the warinngs. To manully mount a loop device.
Code:
# mount loop.img directory
If for some reason that doesn't work use losetup.
Code:
# losetup /dev/block/loop7 loop.img
# mount -t auto /dev/block/loop7 directory
Click to expand...
Click to collapse
Still have questions about getting Linux installer working, started a thread here
http://forum.xda-developers.com/showthread.php?p=24855920
To avoid clogging up this thread any further, any help would be appreciated.
Sent from my DROID3 using Tapatalk 2

i'm in the process of setting up a build environment for kernel modules and have the 5.6.890 kernel source. couple of questions:
does anyone have links to any good info on how to build android kernel modules? google isn't being very helpful.
would it be possible to get modules built with the 5.6.890 source working with the 5.7.906 kernel?
thanks in advance

Write kernel module how to select the source

I want to write a kernel module for I9000 and the current kernel version it is using is XXJVP. What is the correct source that I should be using?
I tried with this source in opensource.samsung.com's GT-I9000_OpenSource_GB.zip source but it gives this error,
# insmod ioctlf.ko
insmod: init_module 'ioctlf.ko' failed (Exec format error)
Should I try to find the source for the existing kernels source compile the module or is there any other way?
Thanks in advance..

Wrong section, needs to be in Q&A

elcaro said:
Wrong section, needs to be in Q&A
Click to expand...
Click to collapse
Thanks how to move to Q&A?