Android RootTools framework is easy to use

Android Directory Structure

data

app: User-installed applications
data: application-specific folder
system: system configuration information, registry file
anr: anr abnormal record information

dev：devices abbreviation

Store files corresponding to the device

mnt: abbreviation of mount

Devices mounted on the system: sdcard, USB flash drive

proc: hardware configuration, status information

cpuinfo、meminfo

sbin: system bin

System-important binary executable files
adbd: server's adb process

system:

app: stores system applications, which cannot be deleted by default
bin: executable linux command file in Android
etc: host: mapping of host name and IP address
fonts: Android's own fonts
Framework: stores the Java API provided by Google
lib: class library of core functions, C/C++ files
media/audio: stores Android sound effect files
tts: speech engine, does not support Chinese by default
usr: configuration information of user equipment, mapping of keyboard encoding and key encoding
xbin: binary instructions for developers

Linux instructions under Android

su:superuser

Switch to superuser

rm: remove, delete files

rm filename

ls: List all files and folders in a directory cd: Switch to a directory

ls -l: View detailed information of a file
ls -a: View hidden files

cat: View file contents

cat filename
Do not cat binary executable files

mv: move changes the file name

mv original file name new file name

mkdir: create a folder

mkdir folder name

rmdir: delete a folder

rmdir folder name

touch: create a new file

touch filename

chmod: change mode, switch file access permissions

chmod 777 filename

echo: echo data; redirect data sleep: sleep for a few seconds

echo data> filename

df: Display the capacity of the specified directory

id: print the id of the current user ps: list all processes running in the system

uid=0:root
uid=1000:system
uid=2000:shell
uid=10000+: general application ID

kill: kill the process with the specified pid

kill pid

chown: change owner, modify the owner

chown 0.0 filename

mount: mount the file system

mount -o remount rw /: Mount the current directory with read and write permissions
mount -o remount rw /system: Remount the specified directory

Android-specific instructions

am: ActivityManager, which can perform operations related to activity

am start -n com.itheima.createfile/com.itheima.createfile.MainActivity: Start the specified Activity
am kill com.itheima.createfile: end the non-foreground process
am force-stop com.itheima.createfile: end the process

pm:PackageManagermonkey -p com.itheima.createfile 1000: Automatically click the specified application 1000 times

pm disable package name: freeze the specified application
pm enable package name: unfreeze the specified application

Flash the emulator, write rom files (su)

If you want a real phone to run these commands, the phone must have root permissions
Root flashing principle: copy the su binary file to /system/bin or /system/xbin
Android rooting software works by exploiting system vulnerabilities.
rom: can be understood as the installation file of the Android system
Write the su file and superuser.apk into the img file
Execute the su command

Runtime.getRuntime().exec("su");

Small case: freeze and thaw application

Freeze and unfreeze specified apps

 RootTools.sendShell( "pm disable " + package, 300000); RootTools.sendShell( "pm enable " + package, 300000);

Small case: Reading user privacy data with zero permissions

Directly modify the SMS database access permissions

 RootTools.sendShell( "chmod 777 data/data/com.android.providers.telephony/databases/mmssms.db" , 300000);
 SQLiteDatabase db = SQLiteDatabase.openDatabase( "data/data/com.android.providers.telephony/databases/mmssms.db" , null , SQLiteDatabase.OPEN_READONLY);
 Cursor   cursor = db.query( "sms" , new String[]{ "body" , "address" }, null , null , null , null , null );
 while( cursor .moveToNext()){ String body = cursor .getString(0);
 String address = cursor .getString(1); System. out .println(body + ";" + address); }
 RootTools.sendShell( "chmod 660 data/data/com.android.providers.telephony/databases/mmssms.db" , 300000);

Silent installation

Why is there a need for silent installation? Automatically download the application and then install it silently

Official application. Electronic market, convenient for users to install silently
Rogue software. Downloaded and installed secretly in the background.

 //Silent installation RootTools.sendShell( "pm install sdcard/flowstat.apk" , 30000);
 //Open RootTools.sendShell( "am start -n com.jijian.flowstat/com.jijian.flowstat.TrafficWidgetSetting" , 30000);
 //Uninstall application RootTools.sendShell( "pm uninstall com.jijian.flowstat" , 30000);
 //Delete the downloaded apk package RootTools.sendShell( "rm sdcard/flowstat.apk" , 30000);