Hi all, I am trying to use the Scripting Layer for Android to make a simple shell script to disable the stagefright player (the thing that causes the bad sound quality in Froyo) I made some progress, but it doesn't seem to work right. Can someone with knowledge of scripts help me? Here's what I have so far:
echo "Disable Stagefright"
su
setprop media.stagefright.enable-player false
exit
echo "Disabled"
The problem is that it never displays Disabled. It just returns to the terminal and gives # for the root prompt. Anyone know how I can get this to run properly or a better scripting language that I could use and help porting this to that language?
I'm just guessing here, but shouldn't "exit" go after "Disabled"? Otherwise the script terminates before the echo line.
Well you'd think so, but even if I do that, the script actually doesn't exit. That's the main problem, and it still won't echo that last line. Its like I can't exit su and the setprop command never goes through. Its a little annoying, because as far as I can tell, I wrote it the way it should go in the terminal app. Thanks for the input, but unfortunately, it doesn't do anything.
So it seems after typing exit in manually will terminate the script. Also, if I don't specify su, the script runs, but from what I can tell it doesn't actually do the setprop. And there's no echo's in the terminal. It runs and says would you like to exit? If I say no, there is absolutely no messages in the terminal.
su opens a new shell. so your script doesnt finish because it spawned a child process (the new shell) and is waiting for that command to finish before the next ones are run.
what you need to do is SUID that script, remove the su and exit, and run it.
SUID allows any program to be run with SuperUser permissions (read:root).
look up how to set a programs SUID bit, you'll need busybox, more specifically, chmod.
its along the lines of "chmod +s script.sh" but id double check to make sure.
Thanks! I don't understand all of that (really I'm pretty new to scripts), but I'll look into it. Hopefully I can get this figured out. I want to make two scripts to make it easy for people with rooted 2.2 to turn on and off the audio fix with one click. I'll post back if I make any progress.
edit: I just realized how easy what you said is. At least, I think its easy. The only thing I'm not sure of is where the scripts are saved to.
nenn said:
su opens a new shell. so your script doesnt finish because it spawned a child process (the new shell) and is waiting for that command to finish before the next ones are run.
Click to expand...
Click to collapse
Oh yeah, duh.
you can put the script anywhere as long as that directory is in your $PATH or, to make things simpler you can just put it in a directory already in the $PATH variable.
to check where you can put your scripts run this little line of code.
echo $PATH
Click to expand...
Click to collapse
you can add to the $PATH, but im not sure how to do that on the phone, only from a linux standpoint.
What you need to do is easy assuming that middle line "setprop media.stagefright.enable-player false" is the correct command. the script would look like this
setprop media.stagefright.enable-player false
echo "Disabled Stagefright"
Click to expand...
Click to collapse
However this does no sort of checking to see if its already disabled, if it is does it cause a problem to disable it again. doesnt let you enable it, you probably would want this. also doesnt check if the software is installed.
take the quoted text, throw it in a file and set the SUID bit and youre off.
nenn said:
you can put the script anywhere as long as that directory is in your $PATH or, to make things simpler you can just put it in a directory already in the $PATH variable.
to check where you can put your scripts run this little line of code.
you can add to the $PATH, but im not sure how to do that on the phone, only from a linux standpoint.
What you need to do is easy assuming that middle line "setprop media.stagefright.enable-player false" is the correct command. the script would look like this
However this does no sort of checking to see if its already disabled, if it is does it cause a problem to disable it again. doesnt let you enable it, you probably would want this. also doesnt check if the software is installed.
take the quoted text, throw it in a file and set the SUID bit and youre off.
Click to expand...
Click to collapse
Yeah, no idea how to work with the PATH on android. I found out the scripts are in sl4a/scripts on the sdcard. I tried to chmod directly there, but it gave me a "Bad mode" error. Looks like once I get the SUID bit done, I'm good to go.
I know it doesn't have any error handling at this point. I'm not too worried about that at this point. If it disables stagefright, then I can edit my enabling script to work and I'll have a pair of scripts to toggle the sound fix on and off. (since when I turn off stagefright it can have undesired effects on the camcorder and other media apps) Thanks a lot for the help. I'll keep trying to figure out the SUID problem. I'm running windows. I have my linux laptop running, but haven't gotten around to installing the Android sdk on it yet.
I just had an idea. Do you think I can copy the scripts to my linux computer, chmod them, and then copy them back? If that would work, that could be the easier way at this point.
Well, I tried doing the chmod +s on linux and then pushing the files back. Not sure if they kept the SUID though. They run without a problem, but it doesn't show up as changing the property. This is really dumb...
Actually setprop does not need superuser permissions. So you could simply issue the echo commands and the setprop line. Done.
Sent from my PC36100 using XDA App
I tried that first. Didn't work. I'm not sure why setprop isn't working in the shell script. So far I tried without su, with su, and changing the SUID (though I'm not sure if it sticks when its pushed back to Android. It seems like such an easy script. This is really annoying. Also, I'm pretty sure you have to have root to use setprop, at least for the use I'm using. I got the command from here: http://forum.xda-developers.com/showthread.php?t=737111
the suid wont stick when you push the file over. to see if the command is being run proper run the setprop and check its return value, i dont think this will work unless youre in a proper shell. i cant seem to find out the command to check the return value.
if the return value is anything other than 0 (zero) there was a problem.
im off for the day, work is over
Yeah, I didn't think it would stick, but oh well. I can't get the return value, but I've been doing a getprop through adb to see if the property was changed, but it never is. The shell runs, but again, no output, just runs and exits.
superlinkx said:
Yeah, I didn't think it would stick, but oh well. I can't get the return value, but I've been doing a getprop through adb to see if the property was changed, but it never is. The shell runs, but again, no output, just runs and exits.
Click to expand...
Click to collapse
Getprop shows you the value of build.prop. The setprop command does not actually change build.prop but rather changes current session settings. The settings will revert upon reboot. That is why setprop has always been touted as a temporary fix. Try this script:
Code:
echo "Disable Stagefright"
adb shell setprop media.stagefright.enable-player false
echo "Disabled"
Edit: If that does not work, insert "cd .." before you exit command in you original script. That's "cd(space).." without the quotes.
Sent from my PC36100 using XDA App
sombdy said:
Getprop shows you the value of build.prop. The setprop command does not actually change build.prop but rather changes current session settings. The settings will revert upon reboot. That is why setprop has always been touted as a temporary fix. Try this script:
Code:
echo "Disable Stagefright"
adb shell setprop media.stagefright.enable-player false
echo "Disabled"
Edit: If that does not work, insert "cd .." before you exit command in you original script. That's "cd(space).." without the quotes.
Sent from my PC36100 using XDA App
Click to expand...
Click to collapse
Ok, I tried the adb shell method, but that still didn't even temporarily change the build.prop. I know that using setprop is temporary, which is one of the reasons I'm using a script. I know that I can pull build.prop, edit the property and push it back, but then I'd have to put up with undesired effects.
I also tried the cd .. method, like so:
Code:
echo "enable stagefright"
su
setprop media.stagefright.enable-player true
cd ..
exit
echo "ENABLED"
(this is my second script that reenables stagefright. I have it turned off right now)
After doing that, I use adb shell from my computer and getprop still shows its false. If I run the command "setprop media.stagefright.enable-player true" from adb shell, it changes properly and shows when I say getprop. I'll probably work on it more tomorrow. Thanks everyone for the suggestions! I appreciate the help, even if it hasn't quite panned out yet.
Anyone else have any ideas? This is so dumb! I know the solution is simple, I just can't think of what it could be.
Hi!
I have a problem with my carrier about 3G/H (continuous switches). With my old HTC Hero, I solved this changing ro.ril.hsxpa var in build.prop to 0 (disable HSDPA). I prefer to have internet at 384kpps than continuos switches from HSDPA to UMTS.
2 days ago, I received my new Samsung Galaxy S, with the same carrier problem. But when I edit build.prop adding this line to the end of the file, there is no effect (rebooted 5 or 6 times after edit...)
Also... I have mounted system in rw to edit /system/build.prop:
# mount -o rw,remount -t yaffs2 /dev/block/mtdblock3
and now, is always in rw even after reboot!!! wtf?!?!?
So... build.prop is not functional in SGS? this command don't work in SGS? and why /system partition in RW mode even after reboot?
Info: Im using stock rom (2.1 I9000BVJM1) with clockworkmod and OneClickLagFixV2+
Thanks!
You are using the procedure for HTC phones. In the Galaxy the device names are different.
Anyway you don't need to place that line in build.prop. You can just create and upload a file called local.prop to the phone, and copy it as /data/local.prop.
ro.ril.hsxpa=0
ro.ril.gprsclass=12
That's a good tip by the way. If we force our phones into 3G (no HSPA) mode only, it should use a lot less battery, yet be much faster than 2G.
Not sure if it works on Samsungs or not, but worth a try.
P.S. If you want to check if those values got set, use adb shell and do a "getprop".
hardcore said:
You are using the procedure for HTC phones. In the Galaxy the device names are different.
Anyway you don't need to place that line in build.prop. You can just create and upload a file called local.prop to the phone, and copy it as /data/local.prop.
ro.ril.hsxpa=0
ro.ril.gprsclass=12
That's a good tip by the way. If we force our phones into 3G (no HSPA) mode only, it should use a lot less battery, yet be much faster than 2G.
Not sure if it works on Samsungs or not, but worth a try.
P.S. If you want to check if those values got set, use adb shell and do a "getprop".
Click to expand...
Click to collapse
hi, and thanks for your answer.
Unfortunatelly, the file created /data/local.prop has no effect (2 reboots after edit).
It continues using HSDPA, and getprop doesn't show any ro.ril.* line
SeDeaDeYe said:
hi, and thanks for your answer.
Unfortunatelly, the file created /data/local.prop has no effect (2 reboots after edit).
It continues using HSDPA, and getprop doesn't show any ro.ril.* line
Click to expand...
Click to collapse
Really? It works for me - getprop shows the ro.ril lines. The symbol on my GSM signal logo still says "H" but the speeds are only 3G speeds.
Code:
# getprop|grep ro.ril
getprop|grep ro.ril
[ro.ril.hsxpa]: [0]
[ro.ril.gprsclass]: [12]
# cat /data/local.prop
cat /data/local.prop
ro.ril.hsxpa=0
ro.ril.gprsclass=12
#
hardcore said:
Really? It works for me - getprop shows the ro.ril lines. The symbol on my GSM signal logo still says "H" but the speeds are only 3G speeds.
Code:
# getprop|grep ro.ril
getprop|grep ro.ril
[ro.ril.hsxpa]: [0]
[ro.ril.gprsclass]: [12]
# cat /data/local.prop
cat /data/local.prop
ro.ril.hsxpa=0
ro.ril.gprsclass=12
#
Click to expand...
Click to collapse
Really? Maybe is my ROM version?
That is the output:
Code:
# pwd
/data
# getprop|grep ro.ril
# cat /data/local.prop
ro.ril.hsxpa=0
ro.ril.gprsclass=12
#
Maybe if I have enough time this night I will flash a 2.2 ROM and will try again... but is strange...
Thanks anyway
No need to thank me. Thank you! If this really works we now have a way of limiting the battery drain on these new Froyo radio roms. I've started another thread to discuss if this really works or not.
http://forum.xda-developers.com/showthread.php?t=837716
perfect! will continue in the other thread ( http://forum.xda-developers.com/showthread.php?t=837716 )
Even though the purpose is not the same, the goal is. Let's find a way.
Hello everyone,
If your just reading this, skip to page 2 to save me some embarassment... Been a learning curve.
Go here .... http://forum.xda-developers.com/showpost.php?p=47607547&postcount=17
First post here and well I hope it's in the right place. I am definitely a novice programmer, am a little comfortable writing small python scripts which leads to this...
I got my phone rooted, I have sl4a ( It Nice! I like it. You like dogs?), and I just got my CM 10 source on Ubuntu 10 like Google recommends. I got adb working and Terminal IDE so I originally wanted to get python to be able to be called by the bash shell it provides ( I think its bash). I sorta got it working for a single session but what a drag, and I would get an error along the lines that the title suggests, so I,m not happy about that.
I also managed to get a copy of python from com.googlecode.pythonforandroid into /system/bin/ and now when I type "python" into an ADB shell I get the python interpreter!!! Whoo hooo, but I still got that same error. A "import sys", "import ephem", and maybe a few more workes but still something is wrong it said something thiss stuff here..
"""[email protected]:/data/data # python
Could not find platform independent libraries <prefix>
Could not find platform dependent libraries <exec_prefix>
Consider setting $PYTHONHOME to <prefix>[:<exec_prefix>]
'import site' failed; use -v for traceback
Python 2.6.2 (r262:71600, Mar 20 2011, 16:54:21)
[GCC 4.4.3] on linux-armv7l
Type "help", "copyright", "credits" or "license" for more information.
>>>
"""
update/bump
Ok so looking at the error message again it seems that it wants two prefixes for the $PYTHONHOME variable, I assume two paths and the secon one is to the executable that I put in /system/bin/ which is already in my path hence why python is callable. I had also fumbled around haphazardly with my $PATH vriables the other day and may have added the path to some of the libs python was asking for such as libpython2.6.so, I think I added the directory that lib is found in to my path (its found in "/data/data/com.googlecode.pythonforandroid/files/python/lib/" I think, need to double check that one), so thats what ive done that made this 'click' so to speak into popping out the python interpretor.
Also I found this file...MSM8960_lpm.rc but I forgot from where it came. It looks as if it contains some global variables that get set during boot, am I right?
This is the top part of it...
"""
on early-init
start ueventd
on init
sysclktz 0
loglevel 3
# setup the global environment
export PATH /sbin:/vendor/bin:/system/sbin:/system/bin:/system/xbin
export LD_LIBRARY_PATH /vendor/lib:/system/lib
export ANDROID_BOOTLOGO 1
export ANDROID_ROOT /system
export ANDROID_ASSETS /system/app
export ANDROID_DATA /data
export EXTERNAL_STORAGE /mnt/sdcard
export EXTERNAL_STORAGE2 /mnt/sdcard/external_sd
export USBHOST_STORAGE /mnt/sdcard/usbStorage
export ASEC_MOUNTPOINT /mnt/asec
export LOOP_MOUNTPOINT /mnt/obb
export BOOTCLASSPATH /system/framework/core.jar:/system/framework/bouncycastle.jar:/system/framework/ext.jar:/system/framework/framework.jar:/system/framework/android.policy.jar:/system/framework/services.jar:/system/framework/core-junit.jar
"""
So I am thinking that if I set the paths to my Python exec and libs here, as well as Paths for Lua, Perl, JRuby, Python 2.7, Etc, etc then I would have an assortment of scripting languages to launch into ffrom ADB, am I right? This would help me and others write scripts for ADB in many languages to do repetitive grunt work from scripts.
Any advice would be great as it works but its like python is injured, "import os" didnt work ;( but "import sys" did
It would also be nice if these same vriables could be set for Terminal Emulator, Terminal IDE, and the like, I know SSH is in the works with T. IDE and that one has telnet though I havent figured that out yet.
What should I do? This seems like an OS related issue but if the interpreter is there and compiled for arm and the libs aswell why would this not work?
python -v output
this is the "python -v" output to show what's happening, maybe it'll help....
"""
[email protected]:/ # python -v
Could not find platform independent libraries <prefix>
Could not find platform dependent libraries <exec_prefix>
Consider setting $PYTHONHOME to <prefix>[:<exec_prefix>]
# installing zipimport hook
import zipimport # builtin
# installed zipimport hook
'import site' failed; traceback:
ImportError: No module named site
Python 2.6.2 (r262:71600, Mar 20 2011, 16:54:21)
[GCC 4.4.3] on linux-armv7l
Type "help", "copyright", "credits" or "license" for more information.
>>> import sys
>>> import os
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ImportError: No module named os
>>>
# clear __builtin__._
# clear sys.path
# clear sys.argv
# clear sys.ps1
# clear sys.ps2
# clear sys.exitfunc
# clear sys.exc_type
# clear sys.exc_value
# clear sys.exc_traceback
# clear sys.last_type
# clear sys.last_value
# clear sys.last_traceback
# clear sys.path_hooks
# clear sys.path_importer_cache
# clear sys.meta_path
# clear sys.flags
# clear sys.float_info
# restore sys.stdin
# restore sys.stdout
# restore sys.stderr
# cleanup __main__
# cleanup[1] zipimport
# cleanup[1] signal
# cleanup[1] exceptions
# cleanup[1] _warnings
# cleanup sys
# cleanup __builtin__
# cleanup ints: 3 unfreed ints
# cleanup floats
[email protected]:/ #
"""
That snippet you posted is from the init.rc inside the boot.img...so yes, it has all sorts of initialization code
CNexus said:
That snippet you posted is from the init.rc inside the boot.img...so yes, it has all sorts of initialization code
Click to expand...
Click to collapse
Ok, so I'll so some reading on setting $PYTHONHOME variable and others, I need to learn how that all works anyways. Most if not all of what I find documents how to set the variables for Windows, Mac, or Linux and not for Android. I will do my best to use that knowledge to fit this situation. I also need to dive around the file system a bit more and find all those libs and try to get the paths set for those to work with ADB and not just SL4A.
If I can do that maybe some more Linux programs/commands can be moved into Android's system, I know alot of the GUI apps for Linux have dependencies for python and gtk and qt, those modules might be portable to Android if they haven't already done so. Not to mention the other interpreters like Perl. To be perfectly honest what I want to do is port over Kali's toolset (at least the cmd line tools) over to android to they can be run from a terminal emulator or adb its self. Thats what I want to do with it, then wrap it all up into a ROM and build it. I know they have already compiled most of Kali's and BackTrack's programs on ARM so I was thinking of pulling those apps from there after an upgrade and then moving them into Androids system e.g /system/bin : /system/lib : /etc/* and so on, if the file systems are too different I suppose I can add directories and make a PATH for them or add them to $PATH once I learn how all that works.
Any good documentation on related issued anyone might be able to link to would be great, I'll be droppin by every so often while I'm grinding through google, thanks in advance for any help and thank you for your time, a bit of a read I suppose.
Environment variables like that would need to be set inside the boot.img, so if you want to unpack it and see exactly how things are defined and what other files are there (good exercise all around IMO), grab my tools from over here and unpack it for yourself and take a look:
cool tools
CNexus said:
Environment variables like that would need to be set inside the boot.img, so if you want to unpack it and see exactly how things are defined and what other files are there (good exercise all around IMO), grab my tools from over here and unpack it for yourself and take a look:
Click to expand...
Click to collapse
Well I downloaded twrp 2.3.1.0-d2spr and I used the split_boot tool in the package and got a little tree of files including the init.rc and the other msm one, they seem very similar if not identical (?), weird.
I just have a quick question, do I need to repack all this at a certain size? In other words, if I make any changes in the ramdisk image will it refuse to boot? I browsed over some sites and read somewhere that if I changed the kernal image it would fail a hash check and that the type of hashing ( I use bubble bags, but that's for another forum). How much attention do I need to pay to the size of these files I may alter before I repack and flash to the device?
Edge-Case said:
Well I downloaded twrp 2.3.1.0-d2spr and I used the split_boot tool in the package and got a little tree of files including the init.rc and the other msm one, they seem very similar if not identical (?), weird.
I just have a quick question, do I need to repack all this at a certain size? In other words, if I make any changes in the ramdisk image will it refuse to boot? I browsed over some sites and read somewhere that if I changed the kernal image it would fail a hash check and that the type of hashing ( I use bubble bags, but that's for another forum). How much attention do I need to pay to the size of these files I may alter before I repack and flash to the device?
Click to expand...
Click to collapse
Yes, actually. You need to repack at certain offsets/addresses or the device will be unable to read it properly
Run the boot_info script on your .img file and it will give you everything you need to know to repack the boot.img correctly
First you gotta repack the ramdisk (repack_ramdisk [optional out file])
Then after you do that, you can use the mkbootimg binary along with the info from my boot_info script to make a new boot.img with the right offsets
I've done a ton of boot.img splitting, so here's what it should look like (I forget the cmdline parameter)
Code:
mkbootimg --kernel KERNEL --ramdisk RAMDISK --base 0x80200000 --oversize 2048 --cmdline 'android.I.don't.remember.this.one' --ramdiskaddr 0x81500000 -o new_boot.img
Sent from my S3 on Sense 5 (you jelly?)
CNexus said:
Yes, actually. You need to repack at certain offsets/addresses or the device will be unable to read it properly
Run the boot_info script on your .img file and it will give you everything you need to know to repack the boot.img correctly
First you gotta repack the ramdisk (repack_ramdisk [optional out file])
Then after you do that, you can use the mkbootimg binary along with the info from my boot_info script to make a new boot.img with the right offsets
I've done a ton of boot.img splitting, so here's what it should look like (I forget the cmdline parameter)
Code:
mkbootimg --kernel KERNEL --ramdisk RAMDISK --base 0x80200000 --oversize 2048 --cmdline 'android.I.don't.remember.this.one' --ramdiskaddr 0x81500000 -o new_boot.img
Sent from my S3 on Sense 5 (you jelly?)
Click to expand...
Click to collapse
Thanks,
I actually just got the CWM ROM manager, I updated my CWM and am backing up my rom now, its pretty much stock lacking updates cuz of root I think, I eventually wanna get over to CM or some other rom but CM seems to be supported pretty well.
1) So the backup just finished a second ago, can I pull a boot image out of that? :EDIT: Check. I saw it in the recovered folder.
2) I'll use the boot info on that img when I get it.
3) I guess this is all for testing the variables and getting interpreters to run from adb and T.E. after that I need to install CM 10 to get some blobs, thats all thats hanging me up from modifying the source to build my own version, this is great exercise as it will need to be done when building this "Cyano-Kali" or whatever, I was also thinking "Kali0id" as in Kalioid and Kali zero i.d.
ok well I did some messing around and I got this lill chroot setup working from adb which is kool, I just took a no gui kali.img and a script I found to chroot into it ( Maybe Google "Weaponizing Android"), it needs a lil investigating though I get a couple errors, it looks like it was modified from a chroot into ubuntu (arm).
I put the script into /system/xbin/ and then made it executable (that seems to be the only place I could chmod), I looked at the sript at it points to a coded directory for the kali.img which is something like "/storage/sdcard0/kali/kail.img". This puts the script in a location that is already in the environ variable and you can call it from any cwd by typing "kali".
Note: Interesting tip (may be trivial to the pros), typing "bash" gives me a colorful interface and the bash interpreter, this is good for a first command when entering the terminal or adb because then you can modify the bash rc file found in "/system/etc/bash/" (I think, I'll double check later.*FIXED*).
So, I think I might be able to mod those variables there to include PYTHONPATH, PYTHONHOME, etc...
Then when I launch bash i should be able to launch python and whatever else. (*Check*, it works but you must first "bash" and then "python" to allow the bashrc file to get ran and add PYTHONHOME and PYTHONPATH to the enviroment)
I think the first shell that you get put into is shell and not bash but maybe I'm wrong.
*side note, If you want to su into bash its best ime to do that first, then bash, otherwise when you su while in bash you loose the color, idk why.
heres my results so far...
Code:
[email protected]:~$ adb devices
List of devices attached
xxxxxxxxxx device
[email protected]:~$ adb shell
[email protected]:/ $ su
[email protected]:/ # bash
void endpwent()(3) is not implemented on Android
localhost / # kali
ioctl LOOP_SET_FD failed: Device or resource busy
mount: Device or resource busy
net.ipv4.ip_forward = 1
[[email protected] ~$ cd .. && ls
bin dev home lost+found mnt proc run selinux sys usr
boot etc lib media opt root sbin srv tmp var
[[email protected] /$ which macchanger
/usr/bin/macchanger
[[email protected] /$ which ophcrack
/usr/bin/ophcrack
[[email protected] /$ which reaver
/usr/bin/reaver
[[email protected] /$ which aircrack-ng
/usr/bin/aircrack-ng
[[email protected] /$ python --version
Python 2.7.3
[[email protected] /$ perl --version
This is perl 5, version 14, subversion 2 (v5.14.2) built for arm-linux-gnueabi-thread-multi-64int
(with 80 registered patches, see perl -V for more detail)
Copyright 1987-2011, Larry Wall
Perl may be copied only under the terms of either the Artistic License or the
GNU General Public License, which may be found in the Perl 5 source kit.
Complete documentation for Perl, including FAQ lists, should be found on
this system using "man perl" or "perldoc perl". If you have access to the
Internet, point your browser at http://www.perl.org/, the Perl Home Page.
[[email protected] /$ bash --version
GNU bash, version 4.2.37(1)-release (arm-unknown-linux-gnueabi)
Copyright (C) 2011 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software; you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
[[email protected] /$ python
Python 2.7.3 (default, Jan 2 2013, 22:35:13)
[GCC 4.6.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import os
>>> import sys
>>>
[[email protected] /$ exit
Shutting down Kali ARM
failed: Device or resource busy
losetup: /dev/block/loop255: Device or resource busy
localhost / # exit
1|[email protected]:/ # ^D
1|[email protected]:/ $ ^D
[email protected]:~$
Does anybody know how to mount an external sdcard from the command line on the Debian version of Linux on Android?
Is that even possible, like driver wise and what not?
Nice!
To mount it, first you would need it's device name or UUID..
Sent from my S3 on Sense 5 (you jelly?)
Success!
Alright! I got Python working from the terminal emulator!
I ended up copying the files that got installed by the original installer into my system/ lib, xbin, and, bin directories I just kinda put stuff here or there and then I just got one error about platform independent libraries instead of both dependent and independent. I'm alil add about things sometimes. Then about ten minutes ago while chilling on the patio the syntax for the PythonHome and path variables became clear to me. So i changed it to export and wrapped the paths in quotes and figured out the prefix : exec_prefex thing.
Now python works!!!!!!! ill run it on adb tomorrow and show the results as well as exactly how to get it working after i figure out exactly what i did right. It was probably the last thing.
Edge-Case said:
Alright! I got Python working from the terminal emulator!
I ended up copying the files that got installed by the original installer into my system/ lib, xbin, and, bin directories I just kinda put stuff here or there and then I just got one error about platform independent libraries instead of both dependent and independent. I'm alil add about things sometimes. Then about ten minutes ago while chilling on the patio the syntax for the PythonHome and path variables became clear to me. So i changed it to export and wrapped the paths in quotes and figured out the prefix : exec_prefex thing.
Now python works!!!!!!! ill run it on adb tomorrow and show the results as well as exactly how to get it working after i figure out exactly what i did right. It was probably the last thing.
Click to expand...
Click to collapse
Nice
Sent from my S3 on Sense 5 (you jelly?)
Solution !
Ok I got everything cleaned up a bit, lets see whats going on here...
So hopefully bash is preinstalled for everyone, I just found it, the only changes I made in the past week are installing...
1) CyanogenMod, I believe you will need to already be rooted, have busybox, and a custom recovery to get this far. If you can get CyanogenMod working then you'll probably be able to replicate this, mayeb even with just root and busybox on a stock sprint rom, idk.
2) SL4A along with Python 2.6, Perl, and JRuby. (I hope normal ruby programs can be ran will JRuby, if not I'll either mod the programs or port ruby to android or look for another port.
3) Terminal IDE. This could have been a source of bash if it wasn't native to android or the Terminal Emulator/busybox.
Once you have The above, at least python 2.6 with SL4A, Terminal Emulator, Busybox, and root.
You can (the file system maybe different for different phones but since we are in a specific place of this forum I'll stick with what I found on my phone specifically)
Use a root browser and find a way to remount your file system to read/write or r/w or rw mode so you can write to /system directory. It is located in the / directory of the entire system, not just the sdcard0 partition.
You can open a terminal and type "set" to get a closer look at whats happening here on Android. We are mainly interested in the Environment Variables.
What I did was copy
"/storage/sdcard0/com.googlecode.pythonforandroid/extras/python" ----> "/system/etc/python" ##THIS IS A DIRECTORY
"/data/data/com.googlecode.pythonforandroid/files/python/lib/python2.6" ----> "/system/lib/python2.6" ##THIS IS A DIRECTORY
"/data/data/com.googlecode.pythonforandroid/files/python/bin/python" -> "/system/xbin/python ##THIS IS A FILE, IT IS AN EXECUTABLE!
"/"/data/data/com.googlecode.pythonforandroid/files/python/lib/" ----> "/system/lib/python2.6/" ##WE WANT ALL THE "*.so" FILES NEXT TO THE ORIGIONAL "*/PYTHON2.6/" DIR IN THE "DATA/DATA/" SIDE OF THE TREE TO BE COPIED TO THE SYSTEM SIDE AND INTO THE "/system/lib/python2.6/" DIR NEXT TO THE "/system/lib/python2.6/lib-dynload/" DIR
We want our "/system/lib/python2.6" directory to contain the following :
"/lib-dynload" is a dir; and all the .so files from earlier there are about 8 with a fresh install of python and no modules, some of you may already know how to incorporate modules from this point, but I still need to do some experimenting.
---------------------------------------------------------
OK
if you still following then your gonna wanna do the following
go to "/system/etc/bash" and open the bashrc file, we need to add PYTHONPATH and PYTHONHOME to it, this is how I set it up....
About half way down it will read
Code:
"""
# set some environment variables
HOME=/sdcard
TERM=linux (maybe change this to "Administrator" but that may break something)
"""
# Our additions follow:
export PYTHONHOME="/system/etc/python:/system/xbin/python"
export PYTHONPATH="/system/etc/python:/system/lib/python2.6/lib-dynload:/system/lib/python2.6"
Ok, now if you go to your teminal emulator or ADB shell you can type:
bash [press enter]
python [press enter]
and check out the results
or
su [enter]
bash [enter]
python [enter]
and see what happens
whats happening is that your PYTHONHOME and PYTHONPATH variables are being set when you enter bash, and since they are exported from the bashrc file they get carried over to any child activities that may spawn, such as "python". Correct me if I am wrong.
I may have forgot some little file I put somewere a few days ago or something so let me know if it doesn't work for you i'll do my best to help you get it working on your phone to,
other then finding a rc file for the shell that you start with when you launch the terminal or any other process maybe even, I may need to do what CNex suggested and complete the change in a boot.img to flash to my phone. that should result in the variables being passed to all activities.
Peace yo
Any questions I'll drop around if this dies of from here, well live and let die I suppose.
Just a screen shot
Just a screen shot.
I found the "mkshrc" file in "/system/etc" today so I added the PATHs to that file and now when teminal emulator starts it has access to python's libs. ("/system/etc/mkshrc" should be the location)
I've run into two problems, the first I can live with, the second is only more reason to port Kali's toolset into android.
1) I can't yet access the pydocs for interactive help, for example...
Code:
[email protected]:~$ adb shell
[email protected]:/ $ python
dlopen libpython2.6.so
Python 2.6.2 (r262:71600, Mar 20 2011, 16:54:21)
[GCC 4.4.3] on linux-armv7l
Type "help", "copyright", "credits" or "license" for more information.
>>> import android
>>> help (android)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/home/manuel/AptanaStudio3Workspace/python-for-android/python-build/output/usr/lib/python2.6/site.py", line 431, in __call__
File "/home/manuel/AptanaStudio3Workspace/python-for-android/python-build/output/usr/lib/python2.6/pydoc.py", line 1720, in __call__
File "/home/manuel/AptanaStudio3Workspace/python-for-android/python-build/output/usr/lib/python2.6/pydoc.py", line 1766, in help
File "/home/manuel/AptanaStudio3Workspace/python-for-android/python-build/output/usr/lib/python2.6/pydoc.py", line 1508, in doc
File "/home/manuel/AptanaStudio3Workspace/python-for-android/python-build/output/usr/lib/python2.6/pydoc.py", line 1314, in pager
File "/home/manuel/AptanaStudio3Workspace/python-for-android/python-build/output/usr/lib/python2.6/pydoc.py", line 1338, in getpager
File "/home/manuel/AptanaStudio3Workspace/python-for-android/python-build/output/usr/lib/python2.6/tempfile.py", line 286, in mkstemp
File "/home/manuel/AptanaStudio3Workspace/python-for-android/python-build/output/usr/lib/python2.6/tempfile.py", line 254, in gettempdir
File "/home/manuel/AptanaStudio3Workspace/python-for-android/python-build/output/usr/lib/python2.6/tempfile.py", line 201, in _get_default_tempdir
IOError: [Errno 2] No usable temporary directory found in ['/tmp', '/var/tmp', '/usr/tmp', '/']
>>>
And
2) When I chroot into Kali.img the PYTHONPATH and PYTHONHOME variables get carried over and interfear with python within Kali. ????
Work around: is just modifing "bashrc" then when you want python or other inerpreters launch bash first and call kali from shell.
Solution: is porting Kali's Toolkit and more Linux programs and commands into Android. Then release as rom or give instructions on how to set up.
No Really, I think I got it figured out this time.
If your running python 2.6 via Py4a then youll use the first script to access python from the command line or over adb, you'll need su to but it in /system/bin or /system/xbin and to use this command to write to the system partition "mount -wo remount systemfs /system" when your done use "mount -ro remount systemfs /system" (with out the quotes of course).
Note: adbd can only be ran as root, so this method will only work as root. Also I had some trouble disconnecting from adb as "exit", it hung till I unplugged the phone from usb. But, still I got to run scripts python that utilize the androids api with-out having to directly open sl4a and then the python interpreter from there.
Note2: Maybe one who was slick enough could get the source for sl4a and pick out the server and facade code, then make a little dex to be ran from the command-line instead of starting the server via "am" and instead of using sockets, maybe ashmem to share the JSON results that get sent back to python.
This is the script for 2.6 :
Code:
#!/system/bin/sh
am start -a com.googlecode.android_scripting.action.LAUNCH_SERVER \
-n com.googlecode.android_scripting/.activity.ScriptingLayerServiceLauncher \
--ei com.googlecode.android_scripting.extra.USE_SERVICE_PORT 54326
export AP_PORT=54326
export AP_HOST=127.0.0.1
adbd &
export EXTERNAL_STORAGE=/mnt/sdcard/com.googlecode.pythonforandroid
export PY4A=/data/data/com.googlecode.pythonforandroid/files/python
export PY4A_EXTRAS=$EXTERNAL_STORAGE/extras
PYTHONPATH=$EXTERNAL_STORAGE/extras/python
PYTHONPATH=${PYTHONPATH}:$PY4A/lib/python2.6/lib-dynload
export PYTHONPATH
export TEMP=$EXTERNAL_STORAGE/extras/python/tmp
export HOME=/sdcard
export PYTHON_EGG_CACHE=$TEMP
export PYTHONHOME=$PY4A
export LD_LIBRARY_PATH=$PY4A/lib
$PYTHONHOME/bin/python "[email protected]"
This one is for 3.2 :
Code:
#!/system/bin/sh
am start -a com.googlecode.android_scripting.action.LAUNCH_SERVER \
-n com.googlecode.android_scripting/.activity.ScriptingLayerServiceLauncher \
--ei com.googlecode.android_scripting.extra.USE_SERVICE_PORT 54332
export AP_PORT=54332
export AP_HOST=127.0.0.1
adbd &
export EXTERNAL_STORAGE=/mnt/sdcard/com.googlecode.python3forandroid
export PY34A=/data/data/com.googlecode.python3forandroid/files/python3
export PY4A_EXTRAS=$EXTERNAL_STORAGE/extras
PYTHONPATH=$EXTERNAL_STORAGE/extras/python3
PYTHONPATH=${PYTHONPATH}:$PY34A/lib/python3.2/lib-dynload
export PYTHONPATH
export TEMP=$EXTERNAL_STORAGE/extras/python3/tmp
export HOME=/sdcard
export PYTHON_EGG_CACHE=$TEMP
export PYTHONHOME=$PY34A
export LD_LIBRARY_PATH=$PY34A/lib
$PYTHONHOME/bin/python3 "[email protected]"
Explanation:-First, the server which handles calls to Android's APIs gets starts by it's activity with am and port is set.
-Second, AP_PORT and AP_HOST get exported so that android.py will have its parameters set to interact with the "facade"
-Third, adbd gets started in the background (I cant give a full explanation, but I found the RPC mechanism between the python interpreter and the sl4a server when android.py is imported and droid.* is attempted)
-Fourth, Python's environment variables get set, doing it this way helps to avoid copying the whole python installation to /system (as I did in the past ), just put one of these scripts in /system/bin or /system/xbin and name it "python" then chmod the script "chmod 755 python" you will be able to call the interpreter and put the shabang in your python scripts (ie "#!/system/bin/python").
-Fifth, launch the interpreter.
Here is a short session over adb:
Code:
[email protected]:/ # python
dlopen libpython2.6.so
Python 2.6.2 (r262:71600, Mar 20 2011, 16:54:21)
[GCC 4.4.3] on linux-armv7l
Type "help", "copyright", "credits" or "license" for more information.
>>> import android
>>> droid = android.Android()
>>> droid.makeToast("Hello!")
Result(id=0, result=None, error=None)
>>> droid.getLastKnownLocation()
Result(id=1, result={u'passive': {u'bearing': 0, u'altitude': 0, u'time': 1384816643565L, u'longitude': -67.551754299999999,
u'provider': u'network', u'latitude': 96.0520909, u'speed': 0, u'accuracy': 3533}, u'network': {u'bearing': 0, u'altitude': 0, u'time':
1384816643565L, u'longitude': -67.551754299999999, u'provider': u'network', u'latitude': 96.0520909, u'speed': 0, u'accuracy':
3533}, u'gps': None}, error=None)
>>> exit()
And some credit to others:
http://code.google.com/p/python-for...sh?r=997929b1bbaa53cdf76acfff419ec13c13f869b7
http://stackoverflow.com/questions/10839879/python-sl4a-development
Those are links to where I got some info from to help put this together. The adbd thing was just trying "adb forward tcp:xxxx tcp:xxxx" but that didn't work, so I tried adbd forward tcp:xxxx tcp:xxxx and it looked like it hung there, so I ctl^ c and then just adbd and it hung there again, but when used the "&" to background it and then went to python to try android.py, it worked:good:
And for a lot of fun, go here:
http://code.google.com/p/android-scripting/wiki/ApiReference
-or here-
http://www.mithril.com.au/android/doc/index.html