[FOR DEVS] Execute scripts on shutdown

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Deleted member 267841

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Hi,
Execution of (user/rom) scripts in boot time is supported by the kernels (storing scripts in /system/etc/init.d).
UNIX provide a via for execute scripts on shutdown time, but i don't known any (android) kernel with this feature developed.
For this reason, I have developed a hack in order to execute scripts in shutdown time (just before the services are stopped and unmount partitions).
In order to include this feature in a ROM, you need to make a changes:

EDIT
Finally, I've decided to make this mod as a standard APK.
The framework edition is not easy and causing troubles to any users.
In the attachments of this post you have a installer that contains:
- apk that executes the binary
- binary that executes the scripts (with root permissions)
you can copy your executable scripts to /system/etc/initialization (scripts
executed in boot time) and/or in /system/etc/shutdown (scripts executed in
shutdown time).
in general, you don't need to copy any script in the initialization folder if your
kernel supports the init.d scripts folder.
Enjoy!
EDIT-END

1) Include this portion of code in the framework.jar

a) Decompile framework.jar
b) Edit com/android/internal/app/ShutdownThread.smali and include this procedure

.method static execute_shutdown_scripts_executor()V
.locals 5

.prologue
.line 14
const-string v2, "ShutdownScript"

.line 17
.local v2, title:Ljava/lang/String;
:try_start_0
new-instance v1, Ljava/io/File;

const-string v3, "/system/bin/shutdownd"

invoke-direct {v1, v3}, Ljava/io/File;-><init>(Ljava/lang/String;)V

.line 18
.local v1, file:Ljava/io/File;
invoke-virtual {v1}, Ljava/io/File;->exists()Z

move-result v3

if-eqz v3, :cond_0

.line 20
const-string v3, "Trying to execute \'/system/bin/shutdownd\' script."

invoke-static {v2, v3}, Landroid/util/Log;->d(Ljava/lang/String;Ljava/lang/String;)I

.line 21
invoke-static {}, Ljava/lang/Runtime;->getRuntime()Ljava/lang/Runtime;

move-result-object v3

const-string v4, "/system/bin/shutdownd"

invoke-virtual {v3, v4}, Ljava/lang/Runtime;->exec(Ljava/lang/String;)Ljava/lang/Process;

move-result-object v3

invoke-virtual {v3}, Ljava/lang/Process;->waitFor()I

.line 22
const-string v3, "Script execution finished."

invoke-static {v2, v3}, Landroid/util/Log;->d(Ljava/lang/String;Ljava/lang/String;)I

.line 33
.end local v1 #file:Ljava/io/File;
:goto_0
return-void

.line 26
.restart local v1 #file:Ljava/io/File;
:cond_0
const-string v3, "Shutdown script not found."

invoke-static {v2, v3}, Landroid/util/Log;->d(Ljava/lang/String;Ljava/lang/String;)I
:try_end_0
.catch Ljava/lang/Exception; {:try_start_0 .. :try_end_0} :catch_0

goto :goto_0

.line 29
.end local v1 #file:Ljava/io/File;
:catch_0
move-exception v0

.line 31
.local v0, e:Ljava/lang/Exception;
new-instance v3, Ljava/lang/StringBuilder;

const-string v4, "Error executing script: "

invoke-direct {v3, v4}, Ljava/lang/StringBuilder;-><init>(Ljava/lang/String;)V

invoke-virtual {v0}, Ljava/lang/Exception;->getMessage()Ljava/lang/String;

move-result-object v4

invoke-virtual {v3, v4}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

move-result-object v3

invoke-virtual {v3}, Ljava/lang/StringBuilder;->toString()Ljava/lang/String;

move-result-object v3

invoke-static {v2, v3}, Landroid/util/Log;->e(Ljava/lang/String;Ljava/lang/String;)I

goto :goto_0
.end method
Click to expand...
Click to collapse

c) In the com/android/internal/app/ShutdownThread.smali, search the function "run"
and next, search the code

invoke-direct {v0, v1}, Lcom/android/internal/app/ShutdownThread$8;-><init>(Lcom/android/internal/app/ShutdownThread;)V
Click to expand...
Click to collapse

(in some versions of framework.jar, the number 8 after the ShutdownThread$ differs. No problem)

d) Just after the previously searched code, include the "execute_shutdown_scripts_executor" function call

invoke-static {}, Lcom/android/internal/app/ShutdownThread;->execute_shutdown_scripts_executor()V
Click to expand...
Click to collapse

e) Recompile framework.jar

2) The "execute_shutdown_scripts_executor" has the only function to execute the
file "/system/bin/shutdownd".
You need to include this file (I attach) in this path and set permissions to 06755
(the scripts are executed has root)

3) Place your scripts in /system/etc/shut.d folder
 

Attachments

  • shutdownd.zip
    6 KB · Views: 464
  • ShutdownThread.smali.txt
    2.5 KB · Views: 325
  • SystemScriptsExecutor-cwminstaller.zip
    166.8 KB · Views: 430
Last edited by a moderator:
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symphony.op

symphony.op

Senior Member
Oct 27, 2011
135
82
is very useful.
to make backup of your preferred applications data, to disable media scan on boot, etc
 
KMDonlon

KMDonlon

Senior Member
Feb 22, 2011
104
10
Followed the tutorial to a "T" and no go.....had no issues with the framework.jar and place the shutdownd file in system/bin.... chmod to 06755.....created shut.d folder in system/etc and placed a test script to output "works.txt" in my data folder on shutdown and no go....I am on a DX running .605 deodexed and rooted. I am stumped as I am not a novice at these types of mods...

Can someone take a look at my framework.jar for me to make sure I did things correctly??
 

Attachments

  • framework.jar
    3.4 MB · Views: 18
D

Deleted member 267841

Guest
KMDonlon said:
Followed the tutorial to a "T" and no go.....had no issues with the framework.jar and place the shutdownd file in system/bin.... chmod to 06755.....created shut.d folder in system/etc and placed a test script to output "works.txt" in my data folder on shutdown and no go....I am on a DX running .605 deodexed and rooted. I am stumped as I am not a novice at these types of mods...

Can someone take a look at my framework.jar for me to make sure I did things correctly??
Click to expand...
Click to collapse

hi,
please, try the attached framework.jar
 

Attachments

  • framework.jar
    7 MB · Views: 25
KMDonlon

KMDonlon

Senior Member
Feb 22, 2011
104
10
No love :confused:...tried yours and nothing...I know my scripts work and I decompiled the framework.jar you uploaded to see why it is almost twice as large as my framework.jar.... any other thoughts or ideas?
 
D

Deleted member 267841

Guest
KMDonlon said:
No love :confused:...tried yours and nothing...I know my scripts work and I decompiled the framework.jar you uploaded to see why it is almost twice as large as my framework.jar.... any other thoughts or ideas?
Click to expand...
Click to collapse

hi,
send me your /system/framework/ext.jar
in my galaxy s2, i use a mod by _jkay_. this implements certains functions of framework in ext.jar (in my case, the ShutdownThread.smli is implemented by this cooker in the ext.jar, but is not standard).
 
KMDonlon

KMDonlon

Senior Member
Feb 22, 2011
104
10
Here you are sir, thank you for assisting me so quickly! :)
 

Attachments

  • ext.jar
    508.7 KB · Views: 14
D

Deleted member 267841

Guest
your ext.jar not contains shutdown code.
it's on framework.
i don't known the reason of the malfunction.
this mod works fine in emulator and samsung galaxy s2.
sorry :(
 
KMDonlon

KMDonlon

Senior Member
Feb 22, 2011
104
10
Could it be DX kernel simply does not support it? ...init.d scripts on boot work fine....I was hoping to get this working :(
 
D

Deleted member 267841

Guest
KMDonlon said:
Could it be DX kernel simply does not support it? ...init.d scripts on boot work fine....I was hoping to get this working :(
Click to expand...
Click to collapse

this feature not depends of the kernel.
please, let me known if the file /system/bin/sh exists and you have
enabled the usb depuratiin in settings - applications - development
 
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  • 12
    D
    Deleted member 267841
    Hi,
    Execution of (user/rom) scripts in boot time is supported by the kernels (storing scripts in /system/etc/init.d).
    UNIX provide a via for execute scripts on shutdown time, but i don't known any (android) kernel with this feature developed.
    For this reason, I have developed a hack in order to execute scripts in shutdown time (just before the services are stopped and unmount partitions).
    In order to include this feature in a ROM, you need to make a changes:

    EDIT
    Finally, I've decided to make this mod as a standard APK.
    The framework edition is not easy and causing troubles to any users.
    In the attachments of this post you have a installer that contains:
    - apk that executes the binary
    - binary that executes the scripts (with root permissions)
    you can copy your executable scripts to /system/etc/initialization (scripts
    executed in boot time) and/or in /system/etc/shutdown (scripts executed in
    shutdown time).
    in general, you don't need to copy any script in the initialization folder if your
    kernel supports the init.d scripts folder.
    Enjoy!
    EDIT-END

    1) Include this portion of code in the framework.jar

    a) Decompile framework.jar
    b) Edit com/android/internal/app/ShutdownThread.smali and include this procedure

    .method static execute_shutdown_scripts_executor()V
    .locals 5

    .prologue
    .line 14
    const-string v2, "ShutdownScript"

    .line 17
    .local v2, title:Ljava/lang/String;
    :try_start_0
    new-instance v1, Ljava/io/File;

    const-string v3, "/system/bin/shutdownd"

    invoke-direct {v1, v3}, Ljava/io/File;-><init>(Ljava/lang/String;)V

    .line 18
    .local v1, file:Ljava/io/File;
    invoke-virtual {v1}, Ljava/io/File;->exists()Z

    move-result v3

    if-eqz v3, :cond_0

    .line 20
    const-string v3, "Trying to execute \'/system/bin/shutdownd\' script."

    invoke-static {v2, v3}, Landroid/util/Log;->d(Ljava/lang/String;Ljava/lang/String;)I

    .line 21
    invoke-static {}, Ljava/lang/Runtime;->getRuntime()Ljava/lang/Runtime;

    move-result-object v3

    const-string v4, "/system/bin/shutdownd"

    invoke-virtual {v3, v4}, Ljava/lang/Runtime;->exec(Ljava/lang/String;)Ljava/lang/Process;

    move-result-object v3

    invoke-virtual {v3}, Ljava/lang/Process;->waitFor()I

    .line 22
    const-string v3, "Script execution finished."

    invoke-static {v2, v3}, Landroid/util/Log;->d(Ljava/lang/String;Ljava/lang/String;)I

    .line 33
    .end local v1 #file:Ljava/io/File;
    :goto_0
    return-void

    .line 26
    .restart local v1 #file:Ljava/io/File;
    :cond_0
    const-string v3, "Shutdown script not found."

    invoke-static {v2, v3}, Landroid/util/Log;->d(Ljava/lang/String;Ljava/lang/String;)I
    :try_end_0
    .catch Ljava/lang/Exception; {:try_start_0 .. :try_end_0} :catch_0

    goto :goto_0

    .line 29
    .end local v1 #file:Ljava/io/File;
    :catch_0
    move-exception v0

    .line 31
    .local v0, e:Ljava/lang/Exception;
    new-instance v3, Ljava/lang/StringBuilder;

    const-string v4, "Error executing script: "

    invoke-direct {v3, v4}, Ljava/lang/StringBuilder;-><init>(Ljava/lang/String;)V

    invoke-virtual {v0}, Ljava/lang/Exception;->getMessage()Ljava/lang/String;

    move-result-object v4

    invoke-virtual {v3, v4}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    move-result-object v3

    invoke-virtual {v3}, Ljava/lang/StringBuilder;->toString()Ljava/lang/String;

    move-result-object v3

    invoke-static {v2, v3}, Landroid/util/Log;->e(Ljava/lang/String;Ljava/lang/String;)I

    goto :goto_0
    .end method
    Click to expand...
    Click to collapse

    c) In the com/android/internal/app/ShutdownThread.smali, search the function "run"
    and next, search the code

    invoke-direct {v0, v1}, Lcom/android/internal/app/ShutdownThread$8;-><init>(Lcom/android/internal/app/ShutdownThread;)V
    Click to expand...
    Click to collapse

    (in some versions of framework.jar, the number 8 after the ShutdownThread$ differs. No problem)

    d) Just after the previously searched code, include the "execute_shutdown_scripts_executor" function call

    invoke-static {}, Lcom/android/internal/app/ShutdownThread;->execute_shutdown_scripts_executor()V
    Click to expand...
    Click to collapse

    e) Recompile framework.jar

    2) The "execute_shutdown_scripts_executor" has the only function to execute the
    file "/system/bin/shutdownd".
    You need to include this file (I attach) in this path and set permissions to 06755
    (the scripts are executed has root)

    3) Place your scripts in /system/etc/shut.d folder
    View
    1
    D
    Deleted member 267841
    KMDonlon said:
    I will stay tuned!!
    Click to expand...
    Click to collapse

    first post updated with a standard app.
    you don't need to edit the framework.jar anymore.
    please, download the "SystemScriptsExecutor-cwminstaller.zip"
    and install in recovery mode.
    included files in zip are:
    -apk that executes the binary in boot/shutdown time
    -binary that executes the files in the init/shutdown directories (this
    binary is executed with setuid/setgid permissions) [root is not needed]
    enjoy!
    View
    1
    D
    Deleted member 267841
    Patrics83 said:
    This is so cool!

    Thanks a lot for sharing this :D

    May I have the permissions to use your scripts in a mod that I have made?
    Click to expand...
    Click to collapse

    of course, you can use it! :)
    View
    1
    C
    Chan Kar Heng
    Quick question: Is this detecting shutdown event via BroadcastReceiver to receive Android OS shutdown events? No more based on some Shutdown*java hack right? It would really mean much better compatibility.

    Anyway, I managed to get it working on CM 10.2 (Android 4.3). Here's my workaround:
    Create a text file caleld SystemScriptsExecutor-cwminstaller.sh in your device, having following content:

    ========================================
    #!/system/bin/sh

    cd /
    mount -o rw,remount /system
    cd -

    mkdir /system/etc/osinit.d
    chmod 775 /system/etc/osinit.d
    mkdir /system/etc/osshut.d
    chmod 775 /system/etc/osshut.d

    cd /system/bin
    chmod 06755 SystemScriptsExecutor 2>/dev/null
    echo '#!/system/bin/sh' > SystemScriptsExecutor
    echo '' >> SystemScriptsExecutor
    echo '# Trigger prompt for superuser access always.' >> SystemScriptsExecutor
    echo 'su -c true' >> SystemScriptsExecutor
    echo '' >> SystemScriptsExecutor
    echo 'if test $1 = INITIALIZATION ; then' >> SystemScriptsExecutor
    echo ' if test -d /system/etc/osinit.d ; then' >> SystemScriptsExecutor
    echo ' su -c /system/etc/osinit.d/*' >> SystemScriptsExecutor
    echo ' fi;' >> SystemScriptsExecutor
    echo 'fi;' >> SystemScriptsExecutor
    echo '' >> SystemScriptsExecutor
    echo 'if test $1 = SHUTDOWN ; then' >> SystemScriptsExecutor
    echo ' if test -d /system/etc/osshut.d ; then' >> SystemScriptsExecutor
    echo ' su -c /system/etc/osshut.d/*' >> SystemScriptsExecutor
    echo ' fi;' >> SystemScriptsExecutor
    echo 'fi;' >> SystemScriptsExecutor
    echo '' >> SystemScriptsExecutor
    chmod 06755 SystemScriptsExecutor
    cd -

    cd /
    mount -o ro,remount /system
    cd -
    ========================================

    . Install SystemScriptsExecutor-cwminstaller.zip as per included instruction.
    . Ensure nothing is using the /system folder throughout.
    . Inside device, as root, invoke SystemScriptsExecutor-cwminstaller.sh.
    ... Init & shutdown script folders are now:
    ..... /system/etc/osinit.d
    ..... /system/etc/osshut.d
    . In your super user manager (Superuser or SuperSU), configure to auto allow su/root access.
    . Shutdown device. SystemScriptsExecutor.apk app will be invoked upon shutdown & super user manager will notify that root access has been auto provided.
    . Boot up the device.
    . In your super user manager (Superuser or SuperSU), configure to its previous state.
    . Place scripts as desired into below folders. Do mount -o rw,remount /system as necessary.
    ... /system/etc/osinit.d
    ... /system/etc/osshut.d

    Hope this helps. SystemScriptsExecutor-cwminstaller.zip is good stuff.

    kh
    View
    1
    R
    relol
    Can someone fix this for 4.4? I've noticed the changes need to be done to services.jar instead to framework.jar bc ShutdownThread is moved. I tried to decompile services, modify (paying atention to the run function to reflect the correct address) and recompile but i have errors :(
    The apk doesn't work for me, i don't know why.
    Any ideas?
    Is the source code available for the apk? thanks!
    View

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