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The Magic Mask for Android
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topjohnwu b278d07b05 Switch to Zygote ptrace-ing 
No matter if we use the old, buggy, error prone am_proc_start monitoring,
or the new APK inotify method, both methods rely on MagiskHide 'reacting'
fast enough to hijack the process before any detection has been done.

However, this is not reliable and practical. There are apps that utilize
native libraries to start detects and register SIGCONT signal handlers
to mitigate all existing MagiskHide process monitoring mechanism. So
our only solution is to hijack an app BEFORE it is started.

All Android apps' process is forked from zygote, so it is easily the
target to be monitored. All forks will be notified, and subsequent
thread spawning (Android apps are heaviliy multithreaded) from children
are also closely monitored to find the earliest possible point to
identify what the process will eventually be (before am_proc_bound).

ptrace is extremely complicated and very difficult to get right. The
current code is heaviliy tested on a stock Android 9.0 Pixel system,
so in theory it should work fine on most devices, but more tests and
potentially fixes are expected to follow this commit.
2019-03-05 20:23:27 -05:00
app Update strings.xml 2019-03-02 05:49:37 -05:00
app-core Application Component Granularity MagiskHide 2019-03-01 17:08:08 -05:00
chromeos Massive build script refactor 2017-06-03 20:31:02 +08:00
docs Update newline in docs 2019-02-03 23:48:20 -05:00
gradle/wrapper Update Android Studio 2019-01-14 14:41:07 -05:00
native Switch to Zygote ptrace-ing 2019-03-05 20:23:27 -05:00
net Don't show progress if content length is unavailable 2019-01-18 16:28:12 -05:00
scripts Support Android Q new init setup 2019-03-03 06:35:25 -05:00
signing Full project restructuring 2019-01-30 03:10:12 -05:00
snet Full project restructuring 2019-01-30 03:10:12 -05:00
.gitattributes Build everything ourselves 2017-08-24 12:14:17 +08:00
.gitignore Support Android Q new init setup 2019-03-03 06:35:25 -05:00
.gitmodules Remove magiskpolicy as submodule 2018-07-18 18:43:36 +08:00
build.gradle Update Android Studio 2019-03-05 07:38:40 -05:00
build.py Welcome to the 64 bit world! 2019-02-24 08:13:27 -05:00
config.prop.sample Read props directly in Gradle 2018-08-20 12:02:38 +08:00
gradle.properties Migrate to AndroidX support library 2018-09-10 02:27:45 -04:00
gradlew Update Gradle wrapper to 4.6 2018-04-22 03:09:02 +08:00
gradlew.bat Update Gradle wrapper to 4.6 2018-04-22 03:09:02 +08:00
LICENSE Use GPL v3 license and update copyright messages 2017-04-22 17:12:54 +08:00
README.MD Misc Formatting 2019-02-11 03:18:15 -05:00
settings.gradle Full project restructuring 2019-01-30 03:10:12 -05:00

README.MD

Magisk

Downloads | Documentation | XDA Thread

Introduction

Magisk is a suite of open source tools for customizing Android, supporting devices higher than Android 4.2 (API 17). It covers the fundamental parts for Android customization: root, boot scripts, SELinux patches, AVB2.0 / dm-verity / forceencrypt removals etc.

Furthermore, Magisk provides a Systemless Interface to alter the system (or vendor) arbitrarily while the actual partitions stay completely intact. With its systemless nature along with several other hacks, Magisk can hide modifications from nearly any system integrity verifications used in banking apps, corporation monitoring apps, game cheat detections, and most importantly Google's SafetyNet API.

Bug Reports

Make sure to install the latest Canary Build before reporting any bugs! DO NOT report bugs that is already fixed upstream. Follow the instructions in the Canary Channel XDA Thread, and report a bug either by opening an issue on GitHub or directly in the thread.

Building Environment Requirements

  1. Python 3: run build.py script
  2. Java Development Kit (JDK) 8: Compile Magisk Manager and sign zips
  3. Latest Android SDK: set ANDROID_HOME environment variable to the path to Android SDK
  4. Android NDK: Install NDK along with SDK ($ANDROID_HOME/ndk-bundle), or optionally specify a custom path ANDROID_NDK_HOME
  5. (Windows Only) Python package Colorama: Install with pip install colorama, used for ANSI color codes

Building Notes and Instructions

  1. Clone sources with submodules: git clone --recurse-submodules https://github.com/topjohnwu/Magisk.git
  2. Building is supported on macOS, Linux, and Windows. Official releases are built and tested with FrankeNDK; point ANDROID_NDK_HOME to FrankeNDK if you want to use it for compiling.
  3. Set configurations in config.prop. A sample file config.prop.sample is provided as an example.
  4. Run build.py with argument -h to see the built-in help message. The -h option also works for each supported actions, e.g. ./build.py binary -h
  5. By default, build.py build binaries and Magisk Manager in debug mode. If you want to build Magisk Manager in release mode (via the -r, --release flag), you need a Java Keystore file release-key.jks (only JKS format is supported) to sign APKs and zips. For more information, check out Google's Official Documentation.

License

Magisk, including all git submodules are free software:
you can redistribute it and/or modify it under the terms of the
GNU General Public License as published by the Free Software Foundation,
either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.