Update Magisk Manager

By the flow of unpacking boot image of Chrome OS there will be no kernel file but an dtb image. In that case the dtb image won’t be added when repacking boot image.

Signed-off-by: Shaka Huang <shakalaca@gmail.com>

.gitattributes

@@ -0,0 +1,18 @@
+# Set the default behavior, in case people don't have core.autocrlf set.
+* text eol=lf
+
+# Explicitly declare text files you want to always be normalized and converted
+# to native line endings on checkout.
+# *.c text
+# *.h text
+
+# Declare files that will always have CRLF line endings on checkout.
+*.cmd text eol=crlf
+*.bat text eol=crlf
+
+# Denote all files that are truly binary and should not be modified.
+chromeos/** binary
+*.jar binary
+*.exe binary
+*.apk binary
+*.png binary

.gitignore

@@ -1,3 +1,16 @@
-obj
-libs
+out
 *.zip
+*.jks
+*.apk
+
+# Built binaries
+ziptools/zipadjust
+
+# Android Studio / Gradle
+*.iml
+.gradle
+/local.properties
+/.idea
+/build
+/captures
+.externalNativeBuild

.gitmodules

@@ -1,6 +1,27 @@
 [submodule "selinux"]
-	path = selinux
-	url = https://github.com/topjohnwu/selinux
-[submodule "jni/sepolicy-inject"]
-	path = jni/sepolicy-inject
-	url = https://github.com/topjohnwu/sepolicy-inject
+	path = native/jni/external/selinux
+	url = https://github.com/topjohnwu/selinux.git
+[submodule "su"]
+	path = native/jni/su
+	url = https://github.com/topjohnwu/MagiskSU.git
+[submodule "magiskpolicy"]
+	path = native/jni/magiskpolicy
+	url = https://github.com/topjohnwu/magiskpolicy.git
+[submodule "MagiskManager"]
+	path = app
+	url = https://github.com/topjohnwu/MagiskManager.git
+[submodule "busybox"]
+	path = native/jni/external/busybox
+	url = https://github.com/topjohnwu/ndk-busybox.git
+[submodule "dtc"]
+	path = native/jni/external/dtc
+	url = https://github.com/dgibson/dtc
+[submodule "lz4"]
+	path = native/jni/external/lz4
+	url = https://github.com/lz4/lz4.git
+[submodule "bzip2"]
+	path = native/jni/external/bzip2
+	url = https://github.com/nemequ/bzip2.git
+[submodule "xz"]
+	path = native/jni/external/xz
+	url = https://github.com/xz-mirror/xz.git

LICENSE

@@ -0,0 +1,674 @@
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+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all.  For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+  13. Use with the GNU Affero General Public License.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    {one line to give the program's name and a brief idea of what it does.}
+    Copyright (C) {year}  {name of author}
+
+    This program is 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/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    {project}  Copyright (C) {year}  {fullname}
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.

README.MD

@@ -1,3 +1,79 @@
 # Magisk
-Static binaries included:
-* Busybox: http://forum.xda-developers.com/android/software-hacking/tool-busybox-flashable-archs-t3348543
+
+## How to build Magisk
+
+#### Building has been tested on 3 major platforms: macOS, Ubuntu, Windows 10
+
+### Environment Requirements
+
+1. Python 3.5+: run `build.py` script
+2. Java Development Kit (JDK) 8: Compile Magisk Manager and sign zips
+3. Latest Android SDK: `ANDROID_HOME` environment variable should point to the Android SDK folder
+4. Android NDK: Install NDK along with SDK (`$ANDROID_HOME/ndk-bundle`), or specify custom path `ANDROID_NDK`
+5. (Windows Only) Python package Colorama: Install with `pip install colorama`, used for ANSI color codes
+
+### Instructions and Notes
+1. Magisk can be built with the latest NDK (r16 as of writing), however binaries released officially will be built with NDK r10e due to ELF incompatibilities with the binaries built from the newer NDKs.
+2. The easiest way to setup the environment is by importing the folder as an Android Studio project. The IDE will download required components and construct the environment for you. You still have to set the `ANDROID_HOME` environment variable to point to the SDK path.
+3. 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`
+4. Build everything with `build.py`, don't directly call `gradlew` or `ndk-build`, since most requires special setup / dependencies.
+5. By default, `build.py` will build binaries and Magisk Manager in debug mode. If you want to build Magisk Manager in release mode (through the flag `--release`), you will need to place a Java Keystore file at `release_signature.jks` to sign Magisk Manager's APK. For more information, check out [Google's Official Documentation](https://developer.android.com/studio/publish/app-signing.html#signing-manually).
+
+
+## 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/>.
+```
+
+## Credits
+
+**MagiskManager** (`app`)
+
+* Copyright 2016-2018, John Wu (@topjohnwu)
+* All contributors and translators on Github
+
+**MagiskSU** (`native/jni/su`)
+
+* Copyright 2016-2018, John Wu (@topjohnwu)
+* Copyright 2015, Pierre-Hugues Husson (phh@phh.me)
+* Copyright 2013, Koushik Dutta (@koush)
+* Copyright 2010, Adam Shanks (@ChainsDD)
+* Copyright 2008, Zinx Verituse (@zinxv)
+
+**MagiskPolicy** (`native/jni/magiskpolicy`)
+
+* Copyright 2016-2018, John Wu (@topjohnwu)
+* Copyright 2015, Pierre-Hugues Husson (phh@phh.me)
+* Copyright 2015, Joshua Brindle (@joshua_brindle)
+
+**MagiskHide** (`native/jni/magiskhide`)
+
+* Copyright 2016-2018, John Wu (@topjohnwu)
+* Copyright 2016, Pierre-Hugues Husson (phh@phh.me)
+
+**resetprop** (`native/jni/resetprop`)
+
+ * Copyright 2016-2018 John Wu (@topjohnwu)
+ * Copyright 2016 nkk71 (nkk71x@gmail.com)
+
+**External Dependencies** (`native/jni/external`)
+
+* Makefile for busybox, generated by [ndk-busybox-kitchen](https://github.com/topjohnwu/ndk-busybox-kitchen)
+* Each dependencies has its own license/copyright information in each subdirectory.  
+All of them are either GPL or GPL compatible.
+
+**Others Not Mentioned**
+
+* Copyright 2016-2018, John Wu (@topjohnwu)

build.gradle

@@ -0,0 +1,27 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+
+buildscript {
+    
+    repositories {
+        google()
+        jcenter()
+    }
+    dependencies {
+        classpath 'com.android.tools.build:gradle:3.0.1'
+        
+
+        // NOTE: Do not place your application dependencies here; they belong
+        // in the individual module build.gradle files
+    }
+}
+
+allprojects {
+    repositories {
+        google()
+        jcenter()
+    }
+}
+
+task clean(type: Delete) {
+    delete rootProject.buildDir
+}

build.py

@@ -0,0 +1,402 @@
+#!/usr/bin/env python3
+import sys
+import os
+import subprocess
+
+if os.name == 'nt':
+	from colorama import init
+	init()
+
+def error(str):
+	print('\n' + '\033[41m' + str + '\033[0m' + '\n')
+	sys.exit(1)
+
+def header(str):
+	print('\n' + '\033[44m' + str + '\033[0m' + '\n')
+
+# Environment checks
+if not sys.version_info >= (3, 5):
+	error('Requires Python >= 3.5')
+
+if 'ANDROID_HOME' not in os.environ:
+	error('Please add Android SDK path to ANDROID_HOME environment variable!')
+
+try:
+	subprocess.run(['java', '-version'], stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
+except FileNotFoundError:
+	error('Please install Java and make sure \'java\' is available in PATH')
+
+import argparse
+import multiprocessing
+import zipfile
+import datetime
+import errno
+import shutil
+import lzma
+import base64
+import tempfile
+
+if 'ANDROID_NDK' in os.environ:
+	ndk_build = os.path.join(os.environ['ANDROID_NDK'], 'ndk-build')
+else:
+	ndk_build = os.path.join(os.environ['ANDROID_HOME'], 'ndk-bundle', 'ndk-build')
+
+def mv(source, target):
+	print('mv: {} -> {}'.format(source, target))
+	shutil.move(source, target)
+
+def cp(source, target):
+	print('cp: {} -> {}'.format(source, target))
+	shutil.copyfile(source, target)
+
+def rm(file):
+	try:
+		os.remove(file)
+	except OSError as e:
+		if e.errno != errno.ENOENT:
+			raise
+
+def mkdir(path, mode=0o777):
+	try:
+		os.mkdir(path, mode)
+	except:
+		pass
+
+def mkdir_p(path, mode=0o777):
+	os.makedirs(path, mode, exist_ok=True)
+
+def zip_with_msg(zipfile, source, target):
+	if not os.path.exists(source):
+		error('{} does not exist! Try build \'binary\' and \'apk\' before zipping!'.format(source))
+	print('zip: {} -> {}'.format(source, target))
+	zipfile.write(source, target)
+
+def build_all(args):
+	build_binary(args)
+	build_apk(args)
+	zip_main(args)
+	zip_uninstaller(args)
+	build_snet(args)
+
+def build_binary(args):
+	header('* Building Magisk binaries')
+
+	# Force update logging.h timestamp to trigger recompilation
+	os.utime(os.path.join('native', 'jni', 'include', 'logging.h'))
+
+	debug_flag = '' if args.release else '-DMAGISK_DEBUG'
+	cflag = 'MAGISK_FLAGS=\"-DMAGISK_VERSION=\\\"{}\\\" -DMAGISK_VER_CODE={} {}\"'.format(args.versionString, args.versionCode, debug_flag)
+
+	# Prebuild
+	proc = subprocess.run('{} -C native PRECOMPILE=true {} -j{}'.format(ndk_build, cflag, multiprocessing.cpu_count()), shell=True)
+	if proc.returncode != 0:
+		error('Build Magisk binary failed!')
+
+	print('')
+	for arch in ['arm64-v8a', 'armeabi-v7a', 'x86', 'x86_64']:
+		mkdir_p(os.path.join('out', arch))
+		with open(os.path.join('out', arch, 'dump.h'), 'w') as dump:
+			dump.write('#include "stdlib.h"\n')
+			mv(os.path.join('native', 'libs', arch, 'magisk'), os.path.join('out', arch, 'magisk'))
+			with open(os.path.join('out', arch, 'magisk'), 'rb') as bin:
+				dump.write('const uint8_t magisk_dump[] = "')
+				dump.write(''.join("\\x{:02X}".format(c) for c in lzma.compress(bin.read(), preset=9)))
+				dump.write('";\n')
+
+	print('')
+
+	proc = subprocess.run('{} -C native {} -j{}'.format(ndk_build, cflag, multiprocessing.cpu_count()), shell=True)
+	if proc.returncode != 0:
+		error('Build Magisk binary failed!')
+
+	print('')
+	for arch in ['arm64-v8a', 'armeabi-v7a', 'x86', 'x86_64']:
+		for binary in ['magiskinit', 'magiskboot', 'b64xz', 'busybox']:
+			try:
+				mv(os.path.join('native', 'libs', arch, binary), os.path.join('out', arch, binary))
+			except:
+				pass
+
+def build_apk(args):
+	header('* Building Magisk Manager')
+
+	mkdir(os.path.join('app', 'src', 'main', 'assets'))
+	for script in ['magisk_uninstaller.sh', 'util_functions.sh']:
+		source = os.path.join('scripts', script)
+		target = os.path.join('app', 'src', 'main', 'assets', script)
+		cp(source, target)
+
+	if args.release:
+		if not os.path.exists('release_signature.jks'):
+			error('Please generate a java keystore and place it in \'release_signature.jks\'')
+
+		proc = subprocess.run('{} app:assembleRelease'.format(os.path.join('.', 'gradlew')), shell=True)
+		if proc.returncode != 0:
+			error('Build Magisk Manager failed!')
+
+		unsigned = os.path.join('app', 'build', 'outputs', 'apk', 'release', 'app-release-unsigned.apk')
+		aligned = os.path.join('app', 'build', 'outputs', 'apk', 'release', 'app-release-aligned.apk')
+		release = os.path.join('app', 'build', 'outputs', 'apk', 'release', 'app-release.apk')
+
+		# Find the latest build tools
+		build_tool = sorted(os.listdir(os.path.join(os.environ['ANDROID_HOME'], 'build-tools')))[-1]
+
+		rm(aligned)
+		rm(release)
+
+		proc = subprocess.run([
+			os.path.join(os.environ['ANDROID_HOME'], 'build-tools', build_tool, 'zipalign'),
+			'-v', '-p', '4', unsigned, aligned], stdout=subprocess.DEVNULL)
+		if proc.returncode != 0:
+			error('Zipalign Magisk Manager failed!')
+
+		# Find apksigner.jar
+		apksigner = ''
+		for root, dirs, files in os.walk(os.path.join(os.environ['ANDROID_HOME'], 'build-tools', build_tool)):
+			if 'apksigner.jar' in files:
+				apksigner = os.path.join(root, 'apksigner.jar')
+				break
+		if not apksigner:
+			error('Cannot find apksigner.jar in Android SDK build tools')
+
+		proc = subprocess.run('java -jar {} sign --ks {} --out {} {}'.format(
+			apksigner, 'release_signature.jks', release, aligned), shell=True)
+		if proc.returncode != 0:
+			error('Release sign Magisk Manager failed!')
+
+		rm(unsigned)
+		rm(aligned)
+
+		mkdir('out')
+		target = os.path.join('out', 'app-release.apk')
+		print('')
+		mv(release, target)
+	else:
+		proc = subprocess.run('{} app:assembleDebug'.format(os.path.join('.', 'gradlew')), shell=True)
+		if proc.returncode != 0:
+			error('Build Magisk Manager failed!')
+
+		source = os.path.join('app', 'build', 'outputs', 'apk', 'debug', 'app-debug.apk')
+		mkdir('out')
+		target = os.path.join('out', 'app-debug.apk')
+		print('')
+		mv(source, target)
+
+def build_snet(args):
+	proc = subprocess.run('{} snet:assembleRelease'.format(os.path.join('.', 'gradlew')), shell=True)
+	if proc.returncode != 0:
+		error('Build snet extention failed!')
+	source = os.path.join('snet', 'build', 'outputs', 'apk', 'release', 'snet-release-unsigned.apk')
+	mkdir('out')
+	target = os.path.join('out', 'snet.apk')
+	print('')
+	mv(source, target)
+
+def gen_update_binary():
+	update_bin = []
+	binary = os.path.join('out', 'armeabi-v7a', 'b64xz')
+	if not os.path.exists(binary):
+		error('Please build \'binary\' before zipping!')
+	with open(binary, 'rb') as b64xz:
+		update_bin.append('#! /sbin/sh\nEX_ARM=\'')
+		update_bin.append(''.join("\\x{:02X}".format(c) for c in b64xz.read()))
+	binary = os.path.join('out', 'x86', 'b64xz')
+	with open(binary, 'rb') as b64xz:
+		update_bin.append('\'\nEX_X86=\'')
+		update_bin.append(''.join("\\x{:02X}".format(c) for c in b64xz.read()))
+	binary = os.path.join('out', 'armeabi-v7a', 'busybox')
+	with open(binary, 'rb') as busybox:
+		update_bin.append('\'\nBB_ARM=')
+		update_bin.append(base64.b64encode(lzma.compress(busybox.read(), preset=9)).decode('ascii'))
+	binary = os.path.join('out', 'x86', 'busybox')
+	with open(binary, 'rb') as busybox:
+		update_bin.append('\nBB_X86=')
+		update_bin.append(base64.b64encode(lzma.compress(busybox.read(), preset=9)).decode('ascii'))
+		update_bin.append('\n')
+	with open(os.path.join('scripts', 'update_binary.sh'), 'r') as script:
+		update_bin.append(script.read())
+	return ''.join(update_bin)
+
+def zip_main(args):
+	header('* Packing Flashable Zip')
+
+	unsigned = tempfile.mkstemp()[1]
+
+	with zipfile.ZipFile(unsigned, 'w', compression=zipfile.ZIP_DEFLATED, allowZip64=False) as zipf:
+		# META-INF
+		# update-binary
+		target = os.path.join('META-INF', 'com', 'google', 'android', 'update-binary')
+		print('zip: ' + target)
+		zipf.writestr(target, gen_update_binary())
+		# updater-script
+		source = os.path.join('scripts', 'flash_script.sh')
+		target = os.path.join('META-INF', 'com', 'google', 'android', 'updater-script')
+		zip_with_msg(zipf, source, target)
+
+		# Binaries
+		for lib_dir, zip_dir in [('arm64-v8a', 'arm64'), ('armeabi-v7a', 'arm'), ('x86', 'x86'), ('x86_64', 'x64')]:
+			for binary in ['magiskinit', 'magiskboot']:
+				source = os.path.join('out', lib_dir, binary)
+				target = os.path.join(zip_dir, binary)
+				zip_with_msg(zipf, source, target)
+
+		# APK
+		source = os.path.join('out', 'app-release.apk' if args.release else 'app-debug.apk')
+		target = os.path.join('common', 'magisk.apk')
+		zip_with_msg(zipf, source, target)
+
+		# Scripts
+		# boot_patch.sh
+		source = os.path.join('scripts', 'boot_patch.sh')
+		target = os.path.join('common', 'boot_patch.sh')
+		zip_with_msg(zipf, source, target)
+		# util_functions.sh
+		source = os.path.join('scripts', 'util_functions.sh')
+		with open(source, 'r') as script:
+			# Add version info util_functions.sh
+			util_func = script.read().replace(
+				'#MAGISK_VERSION_STUB', 'MAGISK_VER="{}"\nMAGISK_VER_CODE={}'.format(args.versionString, args.versionCode))
+			target = os.path.join('common', 'util_functions.sh')
+			print('zip: ' + source + ' -> ' + target)
+			zipf.writestr(target, util_func)
+		# addon.d.sh
+		source = os.path.join('scripts', 'addon.d.sh')
+		target = os.path.join('addon.d', '99-magisk.sh')
+		zip_with_msg(zipf, source, target)
+
+		# Prebuilts
+		for chromeos in ['futility', 'kernel_data_key.vbprivk', 'kernel.keyblock']:
+			source = os.path.join('chromeos', chromeos)
+			zip_with_msg(zipf, source, source)
+
+		# End of zipping
+
+	output = os.path.join('out', 'Magisk-v{}.zip'.format(args.versionString))
+	sign_adjust_zip(unsigned, output)
+
+def zip_uninstaller(args):
+	header('* Packing Uninstaller Zip')
+
+	unsigned = tempfile.mkstemp()[1]
+
+	with zipfile.ZipFile(unsigned, 'w', compression=zipfile.ZIP_DEFLATED, allowZip64=False) as zipf:
+		# META-INF
+		# update-binary
+		target = os.path.join('META-INF', 'com', 'google', 'android', 'update-binary')
+		print('zip: ' + target)
+		zipf.writestr(target, gen_update_binary())
+		# updater-script
+		source = os.path.join('scripts', 'uninstaller_loader.sh')
+		target = os.path.join('META-INF', 'com', 'google', 'android', 'updater-script')
+		zip_with_msg(zipf, source, target)
+
+		# Binaries
+		for lib_dir, zip_dir in [('arm64-v8a', 'arm64'), ('armeabi-v7a', 'arm'), ('x86', 'x86'), ('x86_64', 'x64')]:
+			source = os.path.join('out', lib_dir, 'magiskboot')
+			target = os.path.join(zip_dir, 'magiskboot')
+			zip_with_msg(zipf, source, target)
+
+		source = os.path.join('scripts', 'magisk_uninstaller.sh')
+		target = 'magisk_uninstaller.sh'
+		zip_with_msg(zipf, source, target)
+
+		# Scripts
+		# util_functions.sh
+		source = os.path.join('scripts', 'util_functions.sh')
+		with open(source, 'r') as script:
+			# Remove the stub
+			target = os.path.join('util_functions.sh')
+			print('zip: ' + source + ' -> ' + target)
+			zipf.writestr(target, script.read())
+
+		# Prebuilts
+		for chromeos in ['futility', 'kernel_data_key.vbprivk', 'kernel.keyblock']:
+			source = os.path.join('chromeos', chromeos)
+			zip_with_msg(zipf, source, source)
+
+		# End of zipping
+
+	output = os.path.join('out', 'Magisk-uninstaller-{}.zip'.format(datetime.datetime.now().strftime('%Y%m%d')))
+	sign_adjust_zip(unsigned, output)
+
+def sign_adjust_zip(unsigned, output):
+	signer_name = 'zipsigner-2.1.jar'
+	jarsigner = os.path.join('utils', 'build', 'libs', signer_name)
+
+	if not os.path.exists(jarsigner):
+		header('* Building ' + signer_name)
+		proc = subprocess.run('{} utils:shadowJar'.format(os.path.join('.', 'gradlew')), shell=True)
+		if proc.returncode != 0:
+			error('Build {} failed!'.format(signer_name))
+
+	header('* Signing Zip')
+
+	signed = tempfile.mkstemp()[1]
+
+	proc = subprocess.run(['java', '-jar', jarsigner, unsigned, output])
+	if proc.returncode != 0:
+		error('Signing zip failed!')
+
+def cleanup(args):
+	if len(args.target) == 0:
+		args.target = ['binary', 'java', 'zip']
+
+	if 'binary' in args.target:
+		header('* Cleaning binaries')
+		subprocess.run(ndk_build + ' -C native PRECOMPILE=true clean', shell=True)
+		subprocess.run(ndk_build + ' -C native clean', shell=True)
+		for arch in ['arm64-v8a', 'armeabi-v7a', 'x86', 'x86_64']:
+			shutil.rmtree(os.path.join('out', arch), ignore_errors=True)
+
+	if 'java' in args.target:
+		header('* Cleaning java')
+		subprocess.run('{} app:clean snet:clean utils:clean'.format(os.path.join('.', 'gradlew')), shell=True)
+		for f in os.listdir('out'):
+			if '.apk' in f:
+				rm(os.path.join('out', f))
+
+	if 'zip' in args.target:
+		header('* Cleaning zip files')
+		for f in os.listdir('out'):
+			if '.zip' in f:
+				rm(os.path.join('out', f))
+
+parser = argparse.ArgumentParser(description='Magisk build script')
+parser.add_argument('--release', action='store_true', help='compile Magisk for release')
+subparsers = parser.add_subparsers(title='actions')
+
+all_parser = subparsers.add_parser('all', help='build everything and create flashable zip with uninstaller')
+all_parser.add_argument('versionString')
+all_parser.add_argument('versionCode', type=int)
+all_parser.set_defaults(func=build_all)
+
+binary_parser = subparsers.add_parser('binary', help='build Magisk binaries')
+binary_parser.add_argument('versionString')
+binary_parser.add_argument('versionCode', type=int)
+binary_parser.set_defaults(func=build_binary)
+
+apk_parser = subparsers.add_parser('apk', help='build Magisk Manager APK')
+apk_parser.set_defaults(func=build_apk)
+
+snet_parser = subparsers.add_parser('snet', help='build snet extention for Magisk Manager')
+snet_parser.set_defaults(func=build_snet)
+
+zip_parser = subparsers.add_parser('zip', help='zip and sign Magisk into a flashable zip')
+zip_parser.add_argument('versionString')
+zip_parser.add_argument('versionCode', type=int)
+zip_parser.set_defaults(func=zip_main)
+
+uninstaller_parser = subparsers.add_parser('uninstaller', help='create flashable uninstaller')
+uninstaller_parser.set_defaults(func=zip_uninstaller)
+
+clean_parser = subparsers.add_parser('clean', help='clean [target...] targets: binary java zip')
+clean_parser.add_argument('target', nargs='*')
+clean_parser.set_defaults(func=cleanup)
+
+if len(sys.argv) == 1:
+	parser.print_help()
+	sys.exit(1)
+
+args = parser.parse_args()
+
+args.func(args)

docs/README.MD

@@ -0,0 +1,36 @@
+# Magisk Documentations
+(Updated on 2018.1.8) ([Changelog](changelog.md))
+
+## Table of Contents
+
+- [Introduction](#introduction)
+- [Tips and Tricks](tips.md)
+    - [OTA Installation Tips](tips.md#ota-installation-tips)
+
+The following are for developers
+
+- [Procedure Diagram](https://cdn.rawgit.com/topjohnwu/Magisk/7d1082b1cb91db90ed0a29d8b092723fc3d69c58/docs/procedures.html)
+- [Magisk Details](details.md)
+    - [Boot Stages](details.md#boot-stages)
+    - [Magic Mount Details](details.md#magic-mount-details)
+    - [Simple Mount Details](details.md#simple-mount-details)
+- [Available Tools](tools.md)
+    - [magiskboot](tools.md#magiskboot)
+    - [magiskinit](tools.md#magiskinit)
+    - [magiskpolicy](tools.md#magiskpolicy)
+    - [magisk](tools.md#magisk)
+    - [su](tools.md#su)
+    - [resetprop](tools.md#resetprop)
+    - [magiskhide](tools.md#magiskhide)
+- [Modules](modules.md)
+    - [Modules and Templates](modules.md#magisk-module-format)
+    - [Submit Modules to Repo](https://github.com/topjohnwu/Magisk_Repo_Submissions)
+- [Tips and Tricks](tips.md)
+    - [Remove Files](tips.md#remove-files)
+    - [Remove Folders](tips.md#remove-folders)
+
+    
+## Introduction
+Magisk is a suite of open source tools for devices running Android version higher than 5.0 Lollipop (API 21). It establishes an environment which covers most stuffs you need for Android customization, such as root, boot scripts, SELinux patches, AVB2.0 / dm-verity / forceencrypt patches etc..
+
+Furthermore, Magisk provides a **Systemless Interface** to alter the system (or vendor) arbitrarily while the actual partitions stay completely intact, all of which accomplished by only patching the boot image. With its systemless nature along with several other hacks, Magisk can hide modifications from nearly any existing system integrity verifications, one of the main target is to hide from [Google's SafetyNet API](https://developer.android.com/training/safetynet/index.html).

docs/changelog.md

@@ -0,0 +1,8 @@
+# Changelog
+- 2017.8.16
+    - Initial version for Magisk v13.5
+- 2017.9.28
+    - Update applets info to Magisk v14.1
+    - Add OTA tips
+- 2017.1.8
+    - Update to Magisk v15.2

docs/details.md

@@ -0,0 +1,59 @@
+## Boot Stages
+If you are working on complicated projects, you shall need more control to the whole process. Magisk can run scripts in different boot stages, so you can fine tune exactly what you want to do. It's recommended to read this documentation along with the procedure graph.
+
+- post-fs mode
+    - **This stage is BLOCKING. Boot process will NOT continue until everything is done, or 10 seconds has passed**
+    - Happens after most partitions are mounted. `/data` might not be available since `vold` is not started yet
+    - Magisk will bind mount files under `/cache/magisk_mount/system` and `/cache/magisk_mount/vendor`
+    - It is only **Simple Mount**, which means it will replace existing files, but cannot add/remove files.
+    - This part is mostly deprecated (reasons in details)
+- post-fs-data mode
+    - **This stage is BLOCKING. Boot process will NOT continue until everything is done, or 10 seconds has passed**
+    - Happens after `/data` is ready (including the case when `/data` is encrypted)
+    - Happens before Zygote and system servers are started (which means pretty much everything)
+    - `/data/adb/magisk.img` will be merged, trimmed, and mounted to `MOUNTPOINT=/sbin/.core/img`
+    - Magisk will run scripts under `$MOUNTPOINT/.core/post-fs-data.d`
+    - Magisk will run scripts: `$MOUNTPOINT/$MODID/post-fs-data.sh` (placed in each module directory)
+    - Magisk will finally **Magisk Mount** module files
+- late_start service mode
+    - **This stage is NON-BLOCKING, it will run in parallel with other processes**
+    - Happens when class late_start is triggered
+    - The daemon will wait for the full `sepolicy` patch before running this stage, so SELinux is guaranteed to be fully patched
+    - Put time consuming scripts here. Boot process will get stuck if it took too long to finish your tasks in `post-fs-data`
+    - **It is recommended to run all scripts in this stage**, unless your scripts requires doing stuffs before Zygote is started
+    - Magisk will run scripts under `$MOUNTPOINT/.core/service.d`
+    - Magisk will run scripts: `$MOUNTPOINT/$MODID/service.sh` (placed in each module directory)
+
+## Magic Mount Details
+### Terminology
+- **Item**: A folder, file, or symbolic link
+- **Leaf**: An item that is on the very end of a directory structure tree. It can be either a file or symbolic link
+- **`$MODPATH`**: A variable to represent the path of a module folder
+- **Source item**: An item under `$MODPATH/system`, for example, `$MODPATH/system/bin/app_process32` is a source item
+- **Existing item**: An item in the actual filesystem, for example, `/system/bin/app_process32` is an existing item
+- **Target item**: The corresponding item of a source item. For example, the target item of `$MODPATH/system/bin/app_process32` is `/system/bin/app_process32`
+
+Note: A target item **does not** imply it is an existing item. A target item might not exist in the actual filesystem
+
+### Policies
+- For a source leaf: if its target item is also an existing item, the existing item will be replaced with the source leaf
+- For a source leaf: if its target item is not an existing item, the source leaf will be added to the path of its target item
+- For any existing item that's not a target item, it will stay intact
+
+Above is the rule of thumb. Basically it means that Magic Mount merges the two folders, `$MODPATH/system` into `/system`. A simpler way to understand is to think as the items is dirty copied from `$MODPATH/system` into `/system`.
+
+However, an addition rule will override the above policies:
+
+- For a source folder containing the file `.replace`, the source folder will be treated as if it is a leaf. That is, the items within the target folder will be completely discarded, and the target folder will be replaced with the source folder.
+
+Directories containing a file named `.replace` will **NOT** be merged, instead it directly replaces the target directory. A simpler way to understand is to think as if it wipes the target folder, and then copies the whole folder to the target path.
+
+### Notes
+- If you want to replace files in `/vendor`, please place it under `$MODPATH/system/vendor`. Magisk will handle both cases, whether the vendor partition is separated or not under-the-hood, developers don't need to bother.
+- Sometimes, completely replacing a folder is inevitable. For example you want to replace `/system/priv-app/SystemUI` in your stock rom. In stock roms, system apps usually comes with pre-optimized files. If your replacement `SystemUI.apk` is deodexed (which is most likely the case), you would want to replace the whole `/system/priv-app/SystemUI` to make sure the folder only contains the modified `SystemUI.apk` without the pre-optimized files.
+- If you are using the [Magisk Module Template](https://github.com/topjohnwu/magisk-module-template), you can create a list of folders you want to replace in the file `config.sh`. The installation scripts will handle the creation of `.replace` files into the listed folders for you.
+
+## Simple Mount Details
+(Note: this part is mostly deprecated, since starting with devices using A/B partitions, there is no longer a dedicated partition for cache because OTAs are applied live at boot. Instead, `/cache` now points to `/data/cache`, which means `post-fs` mode does not have access to `/cache` anymore)
+
+Some files require to be mounted much earlier in the boot process, currently known are bootanimation and some libs (most users won't change them). You can simply place your modified files into the corresponding path under `/cache/magisk_mount`. For example, you want to replace `/system/media/bootanimation.zip`, copy your new boot animation zip to `/cache/magisk_mount/system/media/bootanimation.zip`, and Magisk will mount your files in the next reboot. Magisk will **clone all the attributes from the target file**, which includes selinux context, permission mode, owner, group. This means you don't need to worry about the metadata for files placed under `/cache/magisk_mount`: just copy the file to the correct place, reboot then you're done!

docs/modules.md

@@ -0,0 +1,49 @@
+# Magisk Modules
+## Magisk Module Format
+A Magisk module is a folder placed in the root folder in `magisk.img`, which has a structure as described below:
+
+```
+$MOUNTPOINT
+├── .
+├── .
+├── $MODID                  <--- The ID of the module, should match with module.prop
+│   ├── auto_mount          <--- If this file exists, auto mount is enabled
+│   ├── disable             <--- If this file exists, the module is disabled
+│   ├── module.prop         <--- This files stores the identity and properties of the module
+│   ├── post-fs-data.sh     <--- This script will be executed in post-fs-data
+│   ├── remove              <--- If this file exists, the module will be removed next reboot
+│   ├── service.sh          <--- This script will be executed in late_start service
+│   ├── system.prop         <--- This file will be loaded as system props
+│   ├── system              <--- If auto mount is enabled, Magisk will "Magic Mount" this folder
+│   │   ├── .
+│   │   ├── .
+│   │   └── .
+│   ├── vendor              <--- Auto generated. A symlink to $MODID/system/vendor
+│   ├── .                   <--- Any other files/folders are allowed
+│   └── .		
+├── another_module
+│   ├── .
+│   └── .
+├── .
+├── .
+```
+You are not required to use my Magisk Module Template to create a module. As long as you place files with the structure above, it will be recognized as a module.
+
+## Magisk Module Template
+The **Magisk Module Template** is hosted **[here](https://github.com/topjohnwu/magisk-module-template)**.
+
+It is a template to create a flashable zip to install Magisk Modules. It is designed to be simple to use so that anyone can create their own modules easily. The template itself contains minimal scripting for installation; most of the functions are located externally in [util_functions.sh](https://github.com/topjohnwu/Magisk/blob/master/scripts/util_functions.sh), which will be installed along with Magisk, and can be upgraded through a Magisk upgrade without the need of a template update.
+
+Here are some files you would want to know:
+
+- `config.sh`: A simple script used as a configuration file. It is the place to configure which features your module needs/disables. A detailed instructions on how to use the template is also written in this file.
+- `module.prop`: This file contains your module's indentity and properties, including name and versions etc.. This file will be used to identify your module on an actual device and in the [Magisk Modules Repo](https://github.com/Magisk-Modules-Repo)
+- `common/*`: Boot stage scripts and `system.prop`
+- `META-INF/com/google/android/update-binary`: The actual installation script. Modify this file for advanced custom behavior
+
+And here are some notes to be aware of:
+
+- The template depends on external Magisk scripts, please specify the correct `minMagisk` value in `module.prop` with the template version your module is based on, or the minimum Magisk version your module is tested on.
+- **Windows users please check here!!** The line endings of all text files should be in the **Unix format**. Please use advanced text editors like Sublime, Atom, Notepad++ etc. to edit **ALL** text files, **NEVER** use Windows Notepad.
+- In `module.prop`, `version` can be an arbitrary string, so any fancy version name (e.g. `ultra-beta-v1.1.1.1`) is allowed. However, `versionCode` **MUST** be an integer. The value is used for version comparison.
+- Make sure your module ID **does not contain any spaces**.

docs/tips.md

@@ -0,0 +1,53 @@
+# Tips and Tricks
+
+## OTA Installation Tips
+Magisk does modifications systemless-ly, which means applying official OTAs is much simpler. Here I provide a few tutorials for several different kind of devices to apply OTAs and preserve Magisk after the installation if possible.
+
+**This tutorial is only for Magisk v14.1+**
+
+**NOTE: In order to apply OTAs, you HAVE to make sure you haven't modified `/system` (and `/vendor` if available) in anyway, even remounting the partition to rw will tamper block verification!!**
+
+#### Prerequisites
+1. Please disable *Automatic system updates* in developer options, so it won't install OTAs without your acknowledgement.  
+    <img src="images/disable_auto_ota.png" width="250">
+1. When an OTA is available, please go to Magisk Manager → Uninstall → Restore Images. **Do not reboot immediately or you will have Magisk uninstalled.** This will restore your boot (or dtbo if available) back to 100% untouched stock images in order to pass verifications. **This step is required before doing any of the following steps written below!**  
+    <img src="images/restore_img.png" width="250">
+
+#### Devices with A/B Partitions
+(Includes Pixel family)
+
+Due to the fact that these devices have two separate partitions and the OTA installation happens live when the system is still running, these devices have the best support: the out-of-the-box OTA installation works seamlessly and Magisk will be preserved after the installation.
+
+1. After restoring stock boot image, apply OTAs as you normally would (Settings → System → System Updates)
+1. Once the installation passed step 1 and starting step 2, go to Magisk Manager → Install → Install to Second Slot. This will install Magisk into the second boot image slot, which is the updated slot.  
+    <img src="images/ota_step2.png" width="250"> <img src="images/install_second_slot.png" width="250">
+1. Let the OTA finish its job. After a reboot, the bootloader will switch to the updated system. Magisk should still be installed since we already patched the new boot image.
+
+#### Devices with FlashFire Support
+(Includes Pixel family, Nexus family, Samsung devices)  
+(If you are using a device with A/B partitions, I **strongly** recommend you to use the method stated above since it uses the stock OTA installation mechanism and will always work under any circumstances)
+
+The [FlashFire](https://play.google.com/store/apps/details?id=eu.chainfire.flash) app developed by Chainfire is a great app to apply OTAs and preserve root at the same time. However, whether it supports your device/system combination depends on the application itself, and support may also change in the future. If you face any issues, please directly [report to Chainfire](https://forum.xda-developers.com/general/paid-software/flashfire-t3075433).  
+
+1. After restoring the stock boot image, download the OTA (Settings → System → System Updates), **do not press reboot to install.**
+1. Open FlashFire, it should detect your OTA zip. Select OK in the popup dialog to let it do its setup.
+1. Please use the options shown in the screenshot below. The key point is to disable EverRoot (or it will install SuperSU), and add a new action to flash Magisk zip **after** the OTA update.zip (the update.zip is auto generated in the previous step).  
+    <img src="images/flashfire.png" width="250">
+1. Press the big **Flash** button, after a few minutes it should reboot updated with Magisk installed.
+
+#### Other Devices - General Case
+Unfortunately, there are no real good ways to apply OTAs on all devices. Also, the tutorial provided below will not preserve Magisk - you will have to manually re-root your device after the upgrade, and this will require PC access. Here I share my personal experience with HTC U11.
+
+1. To properly install OTAs, you should have your stock recovery installed on your device. If you have custom recovery installed, you can restore it from your previous backup, or dumps found online, or factory images provided by OEMs.  
+If you decide to start by installing Magisk without touching your recovery partition, you have a few choices, either way you will end up with a Magisk rooted device, but recovery remain stock untouched:
+    - If supported, use `fastboot boot <recovery_img>` to boot the custom recovery and install Magisk. 
+    - If you have a copy of your stock boot image dump, install Magisk by patching boot image via Magisk Manager, and manually flash it through download mode / fastboot mode / Odin
+1. Once your device have stock recovery and stock boot image restored, download the OTA. Optionally, once you downloaded the OTA update zip, you can find a way to copy the zip out since you are still rooted. Personally I will extract the stock boot image and recovery image from the OTA zip for future usage (to patch via Magisk Manager or restore stock recovery etc.)
+1. Apply and reboot your device. This will use the official stock OTA installation mechanism of your device to upgrade your system.
+1. Once it's done you will be left with an upgraded, 100% stock, un-rooted device. You will have to manually flash Magisk back. Consider using the methods stated in step 1. to flash Magisk without touching the recovery partition if you want to receive stock OTAs frequently.
+
+## Remove Files
+How to remove a file systemless-ly? To actually make the file **disappear** is complicated (possible, not worth the effort). **Replacing it with a dummy file should be good enough**! Create an empty file with the same name and place it in the same path within a module, it shall replace your target file with a dummy file.
+
+## Remove Folders
+Same as mentioned above, actually making the folder to **disappear** is not worth the effort. **Replacing it with an empty folder should be good enough**! A handy trick for module developers using [Magisk Module Template](https://github.com/topjohnwu/magisk-module-template) is to add the folder you want to remove into the `REPLACE` list within `config.sh`. If your module doesn't provide a correspond folder, it will create an empty folder, and automatically add `.replace` into the empty folder so the dummy folder will properly replace the one in `/system`.

docs/tools.md

@@ -0,0 +1,287 @@
+## Available Tools
+Magisk comes with a lot of tools for installation, programs running as a daemon, and utilities for developers. This documentation covers 3 binaries, and many more tools are available as applets. The relation between tools are shown below:
+
+```
+magiskboot                 /* binary */
+magiskinit                 /* binary */
+magiskpolicy -> magiskinit
+supolicy -> magiskinit     /* alias of magiskpolicy */
+magisk                     /* binary */
+magiskhide -> magisk
+resetprop -> magisk
+su -> magisk
+```
+
+### magiskboot
+A tool to unpack / repack boot images, parse and patch cpio and dtbs, hex patch binaries, compress / decompress with multiple algorithms. It is used to install Magisk into boot images.
+
+`magiskboot` natively supports (which means it does not call external tools) all popular compression methods including `gzip` (used everywhere for compressing kernel and ramdisk), `lz4` (used to compress kernel in modern devices like Pixel), `lz4_legacy` (legacy LZ4 block format with special metadata used [only on LG](https://events.static.linuxfound.org/sites/events/files/lcjpcojp13_klee.pdf) to compress kernel), `lzma` (LZMA1 algorithm natively supported in Linux kernel, used in some custom kernel to compress ramdisk), `xz` (LZMA2 algorithm, very high compression rate, used in Magisk for high compression mode and storing binaries), and `bzip2` (used in desktop Linux boot images to create bzImage, haven't seen on Android yet).
+
+The concept of `magiskboot` is to keep the images as intact as possible. For unpacking, it extracts the large chunks of data (kernel, ramdisk, second, dtb, extra etc.) and decompress them if possible. When repacking a boot image, the original boot image has to be provided so it can use the original headers (including MTK specific headers) with only changing the necessary entries such as the data chunk sizes, and re-compress all data with the original compression method. The same concept also applies to CPIO patching: it does not extract all files, modify in file system, archive all files back to cpio as usually done to create Linux `initramfs`, instead we do modifications directly in the cpio level in memory without involving any data extraction.
+
+Command help message:
+
+```
+Usage: magiskboot <action> [args...]
+
+Supported actions:
+ --parse <bootimg>
+  Parse <bootimg> only, do not unpack. Return values: 
+    0:OK   1:error   2:insufficient boot partition size
+    3:chromeos   4:ELF32   5:ELF64
+
+ --unpack <bootimg>
+  Unpack <bootimg> to kernel, ramdisk.cpio, (second), (dtb), (extra) into
+  the current directory. Return value is the same as --parse
+
+ --repack <origbootimg> [outbootimg]
+  Repack kernel, ramdisk.cpio[.ext], second, dtb... from current directory
+  to [outbootimg], or new-boot.img if not specified.
+  It will compress ramdisk.cpio with the same method used in <origbootimg>,
+  or attempt to find ramdisk.cpio.[ext], and repack directly with the
+  compressed ramdisk file
+
+ --hexpatch <file> <hexpattern1> <hexpattern2>
+  Search <hexpattern1> in <file>, and replace with <hexpattern2>
+
+ --cpio <incpio> [commands...]
+  Do cpio commands to <incpio> (modifications are done directly)
+  Each command is a single argument, use quotes if necessary
+  Supported commands:
+    rm [-r] ENTRY
+      Remove ENTRY, specify [-r] to remove recursively
+    mkdir MODE ENTRY
+      Create directory ENTRY in permissions MODE
+    ln TARGET ENTRY
+      Create a symlink to TARGET with the name ENTRY
+    mv SOURCE DEST
+      Move SOURCE to DEST
+    add MODE ENTRY INFILE
+      Add INFILE as ENTRY in permissions MODE; replaces ENTRY if exists
+    extract [ENTRY OUT]
+      Extract ENTRY to OUT, or extract all entries to current directory
+    test
+      Test the current cpio's patch status. Return value: 
+      0:stock   1:Magisk   2:other (phh, SuperSU, Xposed)
+    patch KEEPVERITY KEEPFORCEENCRYPT
+      Ramdisk patches. KEEP**** are boolean values
+    backup ORIG [SHA1]
+      Create ramdisk backups from ORIG
+      SHA1 of stock boot image is optional
+    restore
+      Restore ramdisk from ramdisk backup stored within incpio
+    magisk ORIG HIGHCOMP KEEPVERITY KEEPFORCEENCRYPT [SHA1]
+      Do Magisk patches and backups all in one step
+      Create ramdisk backups from ORIG
+      HIGHCOMP, KEEP**** are boolean values
+      SHA1 of stock boot image is optional
+    sha1
+      Print stock boot SHA1 if previously stored
+
+ --dtb-<cmd> <dtb>
+  Do dtb related cmds to <dtb> (modifications are done directly)
+  Supported commands:
+    dump
+      Dump all contents from dtb for debugging
+    test
+      Check if fstab has verity/avb flags. Return value:
+      0:no flags    1:flag exists
+    patch
+      Search for fstab and remove verity/avb
+
+ --compress[=method] <infile> [outfile]
+  Compress <infile> with [method] (default: gzip), optionally to [outfile]
+  <infile>/[outfile] can be '-' to be STDIN/STDOUT
+  Supported methods: gzip xz lzma bzip2 lz4 lz4_legacy 
+
+ --decompress <infile> [outfile]
+  Detect method and decompress <infile>, optionally to [outfile]
+  <infile>/[outfile] can be '-' to be STDIN/STDOUT
+  Supported methods: gzip xz lzma bzip2 lz4 lz4_legacy 
+
+ --sha1 <file>
+  Print the SHA1 checksum for <file>
+
+ --cleanup
+  Cleanup the current working directory
+```
+
+### magiskinit
+This tool is created to unify Magisk support for both legacy "normal" devices and new `skip_initramfs` devices. The compiled binary will replace `init` in the ramdisk, so things could be done even before `init` is started.
+
+`magiskinit` is responsible for constructing a proper rootfs on devices which the actual rootfs is placed in the system partition instead of ramdisk in `boot.img`, such as the Pixel familiy and most Treble enabled devices, or I like to call it `skip_initramfs` devices: it will parse kernel cmdline, mount sysfs, parse through uevent files to make the system (or vendor if available) block device node, then copy rootfs files from system. For normal "traditional" devices, it will simply swap `init` back to the original one and continue on to the next stage.
+
+With a proper rootfs, `magiskinit` goes on and does all pre-init operations to setup a Magisk environment. It patches rootfs on the fly, providing fundamental support such as patching `init`, `init.rc`, run preliminary `sepolicy` patches, and extracts `magisk` and `init.magisk.rc` (these two files are embedded into `magiskinit`). Once all is done, it will spawn another process (`magiskinit_daemon`) to asynchronously run a full `sepolicy` patch, then starts monitoring the main Magisk daemon to make sure it is always running (a.k.a invincible mode); at the same time, it will execute the original `init` to hand the boot process back.
+
+### magiskpolicy
+(This tool is aliased to `supolicy` for compatibility with SuperSU's sepolicy tool)
+
+This tool is an applet of `magiskinit`: once `magiskinit` had finished its mission in the pre-init stage, it will preserve an entry point for `magiskpolicy`. This tool could be used for advanced developers messing with `sepolicy`, a compiled binary containing SELinux rules. Normally Linux server admins directly modifies the SELinux policy sources (`*.te`) and recompile the `sepolicy` binary, but here we directly patch the binary file since we don't have access to the sources.
+
+All processes spawned from the Magisk daemon, including root shells and all its forks, are running in the context `u:r:su:s0`. Magisk splits the built in patches into 2 parts: preliminary and full
+
+- The preliminary patch should allow all Magisk internal procedures to run properly (can be done manually by the `--magisk` option). It also contains quite a few additional patches so most scripts can run in the daemon before the full patch is done
+- The full patch adds the rule `allow su * * *` on top of the preliminary rules. This is done because stock Samsung ROMs do not support permissive; adding this rule makes the domain effectively permissive. Due to the concern of greatly increasing the boot time, the Magisk daemon will not wait for this patch to finish until the boot stage `late_start` triggers. What this means is that **only `late_start` service mode is guaranteed to run in a fully patched environment**. For non-Samsung devices it doesn't matter because `u:r:su:s0` is permissive anyways, but for full compatibility, it is **highly recommended to run boot scripts in `late_start` service mode**.
+
+Command help message:
+
+```
+Usage: magiskpolicy [--options...] [policystatements...]
+
+Options:
+  --live            directly apply patched policy live
+  --magisk          built-in rules for a Magisk selinux environment
+  --load FILE       load policies from <infile>
+  --save FILE       save policies to <outfile>
+
+If no input file is specified, it will load from current policies
+If neither --live nor --save is specified, nothing will happen
+
+One policy statement should be treated as one parameter;
+this means a full policy statement should be enclosed in quotes;
+multiple policy statements can be provided in a single command
+
+The statements has a format of "<action> [args...]"
+Use '*' in args to represent every possible match.
+Collections wrapped in curly brackets can also be used as args.
+
+Supported policy statements:
+
+Type 1:
+"<action> source-class target-class permission-class permission"
+Action: allow, deny, auditallow, auditdeny
+
+Type 2:
+"<action> source-class target-class permission-class ioctl range"
+Action: allowxperm, auditallowxperm, dontauditxperm
+
+Type 3:
+"<action> class"
+Action: create, permissive, enforcing
+
+Type 4:
+"attradd class attribute"
+
+Type 5:
+"typetrans source-class target-class permission-class default-class (optional: object-name)"
+
+Notes:
+- typetrans does not support the all match '*' syntax
+- permission-class cannot be collections
+- source-class and target-class can also be attributes
+
+Example: allow { source1 source2 } { target1 target2 } permission-class *
+Will be expanded to:
+
+allow source1 target1 permission-class { all-permissions }
+allow source1 target2 permission-class { all-permissions }
+allow source2 target1 permission-class { all-permissions }
+allow source2 target2 permission-class { all-permissions }
+```
+
+
+### magisk
+The magisk binary contains all the magic of Magisk, providing all the features Magisk has to offer. When called with the name `magisk`, it works as an utility tool with many helper functions, and also the entry point for `init` to start Magisk services. These helper functions are extensively used by the [Magisk Module Template](https://github.com/topjohnwu/magisk-module-template) and Magisk Manager.
+
+Command help message:
+
+```
+Usage: magisk [applet [arguments]...]
+   or: magisk [options]...
+
+Options:
+   -c                        print current binary version
+   -v                        print running daemon version
+   -V                        print running daemon version code
+   --list                    list all available applets
+   --install [SOURCE] DIR    symlink all applets to DIR. SOURCE is optional
+   --createimg IMG SIZE      create ext4 image. SIZE is interpreted in MB
+   --imgsize IMG             report ext4 image used/total size
+   --resizeimg IMG SIZE      resize ext4 image. SIZE is interpreted in MB
+   --mountimg IMG PATH       mount IMG to PATH and prints the loop device
+   --umountimg PATH LOOP     unmount PATH and delete LOOP device
+   --[init service]          start init service
+   --unlock-blocks           set BLKROSET flag to OFF for all block devices
+   --restorecon              fix selinux context on Magisk files and folders
+   --clone-attr SRC DEST     clone permission, owner, and selinux context
+
+Supported init services:
+   daemon, post-fs, post-fs-data, service
+
+Supported applets:
+    su, resetprop, magiskhide
+```
+
+### su
+An applet of `magisk`, the MagiskSU entry point, the good old `su` command.
+
+Command help message:
+
+```
+Usage: su [options] [-] [user [argument...]]
+
+Options:
+  -c, --command COMMAND         pass COMMAND to the invoked shell
+  -h, --help                    display this help message and exit
+  -, -l, --login                pretend the shell to be a login shell
+  -m, -p,
+  --preserve-environment        preserve the entire environment
+  -s, --shell SHELL             use SHELL instead of the default /system/bin/sh
+  -v, --version                 display version number and exit
+  -V                            display version code and exit,
+                                this is used almost exclusively by Superuser.apk
+  -mm, -M,
+  --mount-master                run in the global mount namespace,
+                                use if you need to publicly apply mounts
+```
+
+Note: even though the `-Z, --context` option is not listed above, it actually still exists for compatibility with apps using SuperSU. However MagiskSU will silently ignore the option since it's no more relevant.
+
+### resetprop
+An applet of `magisk`, an advanced system property manipulation utility. Here's some background knowledge: 
+
+System properties are stored in a hybrid trie/binary tree data structure in memory. These properties are allowed to be read by many processes (natively via `libcutils`, in shells via the `getprop` command); however, only the `init` process have direct write access to the memory of property data. `init` provides a `property_service` to accept property update requests and acts as a gatekeeper, doing things such as preventing **read-only** props to be overridden and storing **persist** props to non-volatile storages. In addition, property triggers registered in `*.rc` scripts are also handled here.
+
+`resetprop` is created by pulling out the portion of source code managing properties from AOSP and try to mimic what `init` is doing. With some hackery the result is that we have direct access to the data structure, bypassing the need to go through `property_service` to gain arbitrary control. Here is a small implementation detail: the data structure and the stack-like memory allocation method does not support removing props (they are **designed NOT** to be removed); prop deletion is accomplished by detaching the target node from the tree structure, making it effectively invisible. As we cannot reclaim the memory allocated to store the property, this wastes a few bytes of memory but it shouldn't be a big deal unless you are adding and deleting hundreds of thousands of props over and over again.
+
+Due to the fact that we bypassed `property_service`, there are a few things developer should to be aware of:
+
+- `on property:foo=bar` triggers registered in `*.rc` scripts will not be triggered when props are changed. This could be a good thing or a bad thing, depending on what behavior you expect. The default behavior of `resetprop` matches the original `setprop`, which **WILL** trigger events (implemented by deleting the prop and set the props via `property_service`), but there is a flag (`-n`) to disable it if you need this special behavior.
+- persist props are stored both in memory and in `/data/property`. By default, deleting props will **NOT** remove it from persistent storage, meaning the prop will be restored after the next reboot; reading props will **NOT** read from persistent storage, as this is the behavior of normal `getprop`. With the flag `-p` enabled, deleting props will remove the prop **BOTH** in memory and `/data/property`; props will be read from **BOTH** in memory and persistent storage.
+
+Command help message:
+
+```
+Usage: resetprop [flags] [options...]
+
+Options:
+   -h, --help        show this message
+   (no arguments)    print all properties
+   NAME              get property
+   NAME VALUE        set property entry NAME with VALUE
+   --file FILE       load props from FILE
+   --delete NAME     delete property
+
+Flags:
+   -v      print verbose output to stderr
+   -n      set properties without init triggers
+           only affects setprop
+   -p      access actual persist storage
+           only affects getprop and deleteprop
+```
+
+### magiskhide
+An applet of `magisk`, the CLI to control MagiskHide. Use this tool to communicate with the daemon to change MagiskHide settings.
+
+Command help message: 
+
+```
+Usage: magiskhide [--options [arguments...] ]
+
+Options:
+  --enable          Start magiskhide
+  --disable         Stop magiskhide
+  --add PROCESS     Add PROCESS to the hide list
+  --rm PROCESS      Remove PROCESS from the hide list
+  --ls              Print out the current hide list
+```

gradle.properties

@@ -0,0 +1,22 @@
+# Project-wide Gradle settings.
+
+# IDE (e.g. Android Studio) users:
+# Gradle settings configured through the IDE *will override*
+# any settings specified in this file.
+
+# For more details on how to configure your build environment visit
+# http://www.gradle.org/docs/current/userguide/build_environment.html
+
+# Specifies the JVM arguments used for the daemon process.
+# The setting is particularly useful for tweaking memory settings.
+# Default value: -Xmx10248m -XX:MaxPermSize=256m
+org.gradle.jvmargs=-Xmx2560m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8
+
+# When configured, Gradle will run in incubating parallel mode.
+# This option should only be used with decoupled projects. More details, visit
+# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
+org.gradle.parallel=true
+
+# When set to true the Gradle daemon is used to run the build. For local developer builds this is our favorite property.
+# The developer environment is optimized for speed and feedback so we nearly always run Gradle jobs with the daemon.
+org.gradle.daemon=true

gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,6 @@
+#Mon Dec 04 11:24:34 CST 2017
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip

gradlew

@@ -0,0 +1,160 @@
+#!/usr/bin/env bash
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn ( ) {
+    echo "$*"
+}
+
+die ( ) {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+esac
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
+function splitJvmOpts() {
+    JVM_OPTS=("$@")
+}
+eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
+JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+
+exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"

gradlew.bat

@@ -0,0 +1,90 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windowz variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+if "%@eval[2+2]" == "4" goto 4NT_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+goto execute
+
+:4NT_args
+@rem Get arguments from the 4NT Shell from JP Software
+set CMD_LINE_ARGS=%$
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

jni/Android.mk

@@ -1,35 +0,0 @@
-my_path := $(call my-dir)
-
-LOCAL_PATH := $(my_path)
-
-include $(CLEAR_VARS)
-LOCAL_MODULE := magiskhide
-LOCAL_MODULE_TAGS := optional
-LOCAL_FORCE_STATIC_EXECUTABLE := true
-LOCAL_LDFLAGS := -static
-LOCAL_STATIC_LIBRARIES := libc libcutils
-LOCAL_SRC_FILES := magiskhide.c
-include $(BUILD_EXECUTABLE)
-
-include $(CLEAR_VARS)
-LOCAL_MODULE := bootimgtools
-LOCAL_MODULE_TAGS := optional
-LOCAL_FORCE_STATIC_EXECUTABLE := true
-LOCAL_LDFLAGS := -static
-LOCAL_STATIC_LIBRARIES := libc libcutils
-LOCAL_SRC_FILES := bootimgtools.c extract.c repack.c hexpatch.c
-LOCAL_CFLAGS += -std=gnu11
-include $(BUILD_EXECUTABLE)
-
-include $(CLEAR_VARS)
-LOCAL_MODULE := sepolicy-inject
-LOCAL_MODULE_TAGS := optional
-LOCAL_FORCE_STATIC_EXECUTABLE := true
-LOCAL_LDFLAGS := -static
-LOCAL_STATIC_LIBRARIES := libc libcutils libsepol
-LOCAL_SRC_FILES := sepolicy-inject/sepolicy-inject.c sepolicy-inject/builtin_rules.c
-LOCAL_C_INCLUDES := selinux/libsepol/include/
-LOCAL_CFLAGS += -std=gnu11
-include $(BUILD_EXECUTABLE)
-
-include selinux/libsepol/Android.mk

jni/Application.mk

@@ -1,3 +0,0 @@
-APP_ABI := x86 armeabi
-APP_PIE = true
-APP_PLATFORM := android-21

jni/bootimgtools.c

@@ -1,45 +0,0 @@
-#include <getopt.h>
-#include <stdio.h>
-
-#include "bootimgtools.h"
-
-/********************
-  Patch Boot Image
-*********************/
-
-int usage(char *arg0) {
-	fprintf(stderr, "Boot Image Unpack/Repack Tool\n");
-	fprintf(stderr, "%s --extract <bootimage>\n", arg0);
-	fprintf(stderr, "  Unpack <bootimage> into current directory\n\n");
-	fprintf(stderr, "%s --repack <bootimage>\n", arg0);
-	fprintf(stderr, "  Repack kernel, dt, ramdisk... from current directory to new-image.img\n  <bootimage> is the image you've just unpacked\n\n");
-	fprintf(stderr, "%s --hexpatch <bootimage> <hexpattern1> <hexpattern2>\n", arg0);
-	fprintf(stderr, "  Search <hexpattern1> in <bootimage>, and replace with <hexpattern2>\n\n");
-	return 1;
-}
-
-int main(int argc, char *argv[])
-{
-	char ch;
-	struct option long_options[] = {
-		{"extract", required_argument, NULL, 'e'},
-		{"repack", required_argument, NULL, 'r'},
-		{"hexpatch", required_argument, NULL, 'p'},
-		{NULL, 0, NULL, 0}
-	};
-	while ((ch = getopt_long(argc, argv, "e:r:p:", long_options, NULL)) != -1) {
-		switch (ch) {
-			case 'e':
-				return extract(optarg);
-			case 'r':
-				return repack(optarg);
-			case 'p':
-				if (argc < 5) return usage(argv[0]);
-				optind += 2;
-				return hexpatch(argv[optind - 3], argv[optind - 2], argv[optind - 1]);
-			default:
-				return usage(argv[0]);
-		}
-	}
-	return 0;
-}

jni/bootimgtools.h

@@ -1,90 +0,0 @@
-/* tools/mkbootimg/bootimg.h
-**
-** Copyright 2007, The Android Open Source Project
-**
-** Licensed under the Apache License, Version 2.0 (the "License"); 
-** you may not use this file except in compliance with the License. 
-** You may obtain a copy of the License at 
-**
-**     http://www.apache.org/licenses/LICENSE-2.0 
-**
-** Unless required by applicable law or agreed to in writing, software 
-** distributed under the License is distributed on an "AS IS" BASIS, 
-** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
-** See the License for the specific language governing permissions and 
-** limitations under the License.
-*/
-
-#include <stdint.h>
-
-#ifndef _BOOT_IMAGE_H_
-#define _BOOT_IMAGE_H_
-
-typedef struct boot_img_hdr boot_img_hdr;
-
-#define BOOT_MAGIC "ANDROID!"
-#define BOOT_MAGIC_SIZE 8
-#define BOOT_NAME_SIZE 16
-#define BOOT_ARGS_SIZE 512
-#define BOOT_EXTRA_ARGS_SIZE 1024
-
-struct boot_img_hdr
-{
-    uint8_t magic[BOOT_MAGIC_SIZE];
-
-    uint32_t kernel_size;  /* size in bytes */
-    uint32_t kernel_addr;  /* physical load addr */
-
-    uint32_t ramdisk_size; /* size in bytes */
-    uint32_t ramdisk_addr; /* physical load addr */
-
-    uint32_t second_size;  /* size in bytes */
-    uint32_t second_addr;  /* physical load addr */
-
-    uint32_t tags_addr;    /* physical addr for kernel tags */
-    uint32_t page_size;    /* flash page size we assume */
-    uint32_t unused[2];    /* future expansion: should be 0 */
-
-    uint8_t name[BOOT_NAME_SIZE]; /* asciiz product name */
-
-    uint8_t cmdline[BOOT_ARGS_SIZE];
-
-    uint32_t id[8]; /* timestamp / checksum / sha1 / etc */
-
-    /* Supplemental command line data; kept here to maintain
-     * binary compatibility with older versions of mkbootimg */
-    uint8_t extra_cmdline[BOOT_EXTRA_ARGS_SIZE];
-} __attribute__((packed));
-
-/*
-** +-----------------+ 
-** | boot header     | 1 page
-** +-----------------+
-** | kernel          | n pages  
-** +-----------------+
-** | ramdisk         | m pages  
-** +-----------------+
-** | second stage    | o pages
-** +-----------------+
-**
-** n = (kernel_size + page_size - 1) / page_size
-** m = (ramdisk_size + page_size - 1) / page_size
-** o = (second_size + page_size - 1) / page_size
-**
-** 0. all entities are page_size aligned in flash
-** 1. kernel and ramdisk are required (size != 0)
-** 2. second is optional (second_size == 0 -> no second)
-** 3. load each element (kernel, ramdisk, second) at
-**    the specified physical address (kernel_addr, etc)
-** 4. prepare tags at tag_addr.  kernel_args[] is
-**    appended to the kernel commandline in the tags.
-** 5. r0 = 0, r1 = MACHINE_TYPE, r2 = tags_addr
-** 6. if second_size != 0: jump to second_addr
-**    else: jump to kernel_addr
-*/
-
-int extract(char *image);
-int repack(char *image);
-int hexpatch(char *image, char *from, char *to);
-
-#endif

jni/extract.c

@@ -1,148 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/sendfile.h>
-#include <sys/mman.h>
-#include <fcntl.h>
-#include <assert.h>
-#include <string.h>
-
-#include "bootimgtools.h"
-
-void dump(uint8_t *ptr, size_t size, char* filename) {
-	unlink(filename);
-	int ofd = open(filename, O_WRONLY|O_CREAT, 0644);
-	assert(ofd >= 0);
-	int ret = write(ofd, ptr, size);
-	assert(ret == size);
-	close(ofd);
-}
-
-//TODO: Search for other header types
-void dump_ramdisk(uint8_t *ptr, size_t size) {
-	//GZip header
-	if(memcmp(ptr, "\x1f\x8b\x08\x00", 4) == 0) {
-		dump(ptr, size, "ramdisk.gz");
-	//MTK header
-	} else if(memcmp(ptr, "\x88\x16\x88\x58", 4) == 0) {
-		if(memcmp(ptr+4, "RECOVERY", 8)==0) {
-			dump(ptr, 0, "ramdisk-mtk-recovery");
-		} else if(memcmp(ptr+4, "ROOTFS\0\0", 8)==0) {
-			dump(ptr, 0, "ramdisk-mtk-boot");
-		} else {
-			exit(1);
-		}
-		dump(ptr, 0, "ramdisk-mtk"); //Create an mtk flag
-		dump_ramdisk(ptr+512, size-512);
-	} else {
-		//Since our first aim is to extract/repack ramdisk
-		//Stop if we can't find it
-		//Still dump it for debug purposes
-		dump(ptr, size, "ramdisk");
-
-		fprintf(stderr, "Unknown ramdisk type\n");
-		abort();
-	}
-}
-
-void search_security_hdr(uint8_t *buf, size_t size) {
-	if(memcmp(buf, "CHROMEOS", 8) == 0) {
-		dump(buf, 0, "chromeos");
-		return;
-	}
-}
-
-int search_security(uint8_t *buf, size_t size, int pos) {
-	//Rockchip signature
-	if(memcmp(buf+1024, "SIGN", 4) == 0) {
-		//Rockchip signature AT LEAST means the bootloader will check the crc
-		dump(buf, 0, "rkcrc"); //Create an flag to tell it
-
-		//And it's possible there is a security too
-		return 1;
-	}
-
-	//If we didn't parse the whole file, it is highly likely there is a boot signature
-	if(pos < size) {
-		return 1;
-	}
-
-	return 0;
-}
-
-/*
- * TODO:
- *  - At the moment we dump kernel + ramdisk + second + DT, it's likely we only want ramdisk
- *  - Error-handling via assert() is perhaps not the best
- */
-int extract(char *image) {
-
-	int fd = open(image, O_RDONLY);
-	off_t size = lseek(fd, 0, SEEK_END);
-	lseek(fd, 0, SEEK_SET);
-	uint8_t *orig = mmap(NULL, size, PROT_READ, MAP_SHARED, fd, 0);
-	uint8_t *base = orig;
-	assert(base);
-
-	search_security_hdr(base, size);
-
-	//We're searching for the header in the whole file, we could stop earlier.
-	//At least HTC and nVidia have a signature header
-	while(base<(orig+size)) {
-		if(memcmp(base, BOOT_MAGIC, BOOT_MAGIC_SIZE) == 0)
-			break;
-		//We're searching every 256bytes, is it ok?
-		base += 256;
-	}
-	assert(base < (orig+size));
-
-	struct boot_img_hdr *hdr = (struct boot_img_hdr*) base;
-	assert(
-			hdr->page_size == 2048 ||
-			hdr->page_size == 4096 ||
-			hdr->page_size == 16384
-			);
-
-	long pos = hdr->page_size;
-	dump(base+pos, hdr->kernel_size, "kernel");
-	pos += hdr->kernel_size + hdr->page_size-1;
-	pos &= ~(hdr->page_size-1L);
-
-	dump_ramdisk(base+pos, hdr->ramdisk_size);
-	pos += hdr->ramdisk_size + hdr->page_size-1;
-	pos &= ~(hdr->page_size-1L);
-
-	if(hdr->second_size) {
-		assert( (pos+hdr->second_size) <= size);
-		dump(base+pos, hdr->second_size, "second");
-		pos += hdr->second_size + hdr->page_size-1;
-		pos &= ~(hdr->page_size-1L);
-	}
-
-	//This is non-standard, so we triple check
-	if( hdr->unused[0] &&
-			pos < size &&
-			(pos+hdr->unused[0]) <= size) {
-
-		if(memcmp(base+pos, "QCDT", 4) == 0 ||
-				memcmp(base+pos, "SPRD", 4) == 0 ||
-				memcmp(base+pos, "DTBH", 4) == 0
-				) {
-			dump(base+pos, hdr->unused[0], "dt");
-			pos += hdr->unused[0] + hdr->page_size-1;
-			pos &= ~(hdr->page_size-1L);
-		}
-	}
-
-	//If we think we find some security-related infos in the boot.img
-	//create a "secure" flag to warn the user it is dangerous
-	if(search_security(base, size, pos)) {
-		dump(base, 0, "secure");
-	}
-
-	munmap(orig, size);
-	close(fd);
-	return 0;
-}

jni/hexpatch.c

@@ -1,66 +0,0 @@
-#include <getopt.h>
-#include <stdio.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "bootimgtools.h"
-
-int hex2int(char c) {
-	int first = c / 16 - 3;
-	int second = c % 16;
-	int result = first * 10 + second;
-	if(result > 9) result--;
-	return result;
-}
-
-int hex2ascii(char c, char d) {
-	int high = hex2int(c) * 16;
-	int low = hex2int(d);
-	return high+low;
-}
-
-void hexstr2str(char *hex, char *str) {
-	char buf = 0;
-	for(int i = 0, length = strlen(hex); i < length; ++i){
-		if(i % 2){
-			str[i / 2] = hex2ascii(buf, hex[i]);
-		} else{
-			buf = hex[i];
-		}
-	}
-}
-
-int hexpatch(char * image, char *from, char *to) {
-	int fd = open(image, O_RDWR), patternsize = strlen(from) / 2, patchsize = strlen(to) / 2;
-	off_t filesize = lseek(fd, 0, SEEK_END);
-	char *file, *pattern, *patch, *start;
-	file = malloc(sizeof (char) * filesize);
-	pattern = malloc(sizeof (char) * patternsize);
-	patch = malloc(sizeof (char) * patchsize);
-	lseek(fd, 0, SEEK_SET);
-	read(fd, file, filesize);
-	hexstr2str(from, pattern);
-	hexstr2str(to, patch);
-	for (off_t i = 0; i < filesize;) {
-		int j;
-		for (j = 0; j < patternsize; ++j) {
-			if(file[i + j] != pattern[j]) break;
-		}
-		if (j == patternsize) {
-			fprintf(stderr, "Pattern %s found!\nPatching to %s\n", from, to);
-			lseek(fd, i, SEEK_SET);
-			write(fd, patch, patchsize);
-		}
-		if(j == 0) j = 1;
-		i += j;
-	}
-	free(file);
-	free(pattern);
-	free(patch);
-	close(fd);
-	return 0;
-}

jni/magiskhide.c

@@ -1,165 +0,0 @@
-typedef unsigned short int sa_family_t;
-//Linux includes
-#define _LINUX_TIME_H
-#define _GNU_SOURCE
-#include <sys/types.h>
-#include <string.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <linux/connector.h>
-#include <linux/cn_proc.h>
-#include <linux/netlink.h>
-#include <linux/fs.h>
-#include <sys/socket.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <sys/time.h>
-#include <sys/resource.h>
-#include <unistd.h>
-#include <sys/syscall.h>
-#include <asm/unistd.h>
-#include <sys/mount.h> 
-
-char **file_to_str_arr(FILE *fp, int *size) {
-	int allocated = 16;
-	char *line = NULL, **array;
-	size_t len = 0;
-	ssize_t read;
-
-	array = (char **) malloc(sizeof(char*) * allocated);
-
-	*size = 0;
-	while ((read = getline(&line, &len, fp)) != -1) {
-		if (*size >= allocated) {
-			// Double our allocation and re-allocate
-			allocated *= 2;
-			array = (char **) realloc(array, sizeof(char*) * allocated);
-		}
-		// Remove end newline
-		if (line[read - 1] == '\n') {
-			line[read - 1] = '\0';
-		}
-		array[*size] = line;
-		line = NULL;
-		++(*size);
-	}
-	return array;
-}
-
-//WARNING: Calling this will change our current namespace
-//We don't care because we don't want to run from here anyway
-int hideMagisk(int pid) {
-	char *path = NULL;
-	asprintf(&path, "/proc/%d/ns/mnt", pid);
-	int fd = open(path, O_RDONLY);
-	if(fd == -1) return 2;
-	int res = syscall(SYS_setns, fd, 0);
-	if(res == -1) return 3;
-
-	free(path);
-	path = NULL;
-	asprintf(&path, "/proc/%d/mounts", pid);
-	FILE *mount_fp = fopen(path, "r");
-	if (mount_fp == NULL) {
-		fprintf(stderr, "Error opening mount list!\n");
-		return 1;
-	}
-	free(path);
-
-	int mount_size;
-	char **mount_list = file_to_str_arr(mount_fp, &mount_size), mountpoint[256], *sbstr;
-	fclose(mount_fp);
-
-	int i, unmount = 0;
-	for(i = mount_size - 1; i >= 0; --i) {
-		if((strstr(mount_list[i], "/dev/block/loop") != NULL)) {
-			sscanf(mount_list[i], "%256s %256s", mountpoint, mountpoint);
-			if (strstr(mountpoint, "/.core/dummy") != NULL) 
-				unmount = 0;
-			else
-				unmount = 1;
-		} else if ((sbstr = strstr(mount_list[i], "/.core/dummy")) != NULL) {
-			sscanf(sbstr, "/.core/dummy%256s", mountpoint);
-			unmount = 1;
-		}
-		if(unmount) {
-			unmount = 0;
-			res = umount2(mountpoint, MNT_DETACH);
-			if (res != -1) printf("Unmounted: %s\n", mountpoint);
-			else printf("Failed: %s\n", mountpoint);
-		}
-		free(mount_list[i]);
-	}
-	// Free memory
-	free(mount_list);
-
-	return 0;
-}
-
-int main(int argc, char **argv, char **envp) {
-	if (argc != 2) {
-		fprintf(stderr, "%s <process/package name list>\n", argv[0]);
-		return 1;
-	}
-	int i, hide_size;
-	char **hide_list;
-
-	FILE *hide_fp = fopen(argv[1], "r");
-	if (hide_fp == NULL) {
-		fprintf(stderr, "Error opening hide list\n");
-		return 1;
-	}
-
-	hide_list = file_to_str_arr(hide_fp, &hide_size);
-	fclose(hide_fp);
-
-	printf("Get process / package name from config:\n");
-	for(i = 0; i < hide_size; i++)
-		printf("%s\n", hide_list[i]);
-	printf("\n");
-
-	char buffer[512];
-	FILE *p = popen("while true;do logcat -b events -v raw -s am_proc_start;sleep 1;done", "r");
-	while(!feof(p)) {
-		//Format of am_proc_start is (as of Android 5.1 and 6.0)
-		//UserID, pid, unix uid, processName, hostingType, hostingName
-		fgets(buffer, sizeof(buffer), p);
-
-		{
-			char *pos = buffer;
-			while(1) {
-				pos = strchr(pos, ',');
-				if(pos == NULL)
-					break;
-				pos[0] = ' ';
-			}
-		}
-
-		int user, pid, uid;
-		char processName[256], hostingType[16], hostingName[256];
-		int ret = sscanf(buffer, "[%d %d %d %256s %16s %256s]",
-				&user, &pid, &uid,
-				processName, hostingType, hostingName);
-
-
-		if(ret != 6) {
-			continue;
-		}
-		for (i = 0; i < hide_size; ++i) {
-			if(strstr(processName, hide_list[i]) != NULL) {
-				printf("Disabling for process = %s, PID = %d, UID = %d\n", processName, pid, uid);
-				hideMagisk(pid);
-				break;
-			}
-		}
-	}
-
-	pclose(p);
-
-	// Free memory
-	for(i = 0; i < hide_size; ++i)
-		free(hide_list[i]);
-	free(hide_list);
-
-	return 0;
-}

jni/repack.c

@@ -1,144 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/sendfile.h>
-#include <sys/mman.h>
-#include <fcntl.h>
-#include <assert.h>
-#include <string.h>
-
-#include "bootimgtools.h"
-
-off_t file_size(char *filename) {
-	struct stat st;
-	if(stat(filename, &st))
-		exit(1);
-	return st.st_size;
-}
-
-int append_file(int ofd, char *filename, off_t pos) {
-	lseek(ofd, pos, SEEK_SET);
-	int fd = open(filename, O_RDONLY);
-	int size = lseek(fd, 0, SEEK_END);
-	lseek(fd, 0, SEEK_SET);
-	sendfile(ofd, fd, NULL, size);
-	close(fd);
-	return size;
-}
-
-int append_ramdisk(int ofd, off_t pos) {
-	if(access("ramdisk-mtk", R_OK) == 0) {
-		char buf[512];
-		off_t size = file_size("ramdisk.gz");
-		memcpy(buf, "\x88\x16\x88\x58", 4);
-		uint32_t v = size;
-		memcpy(buf+4, &v, sizeof(v)); //Should convert to LE
-
-		//TODO: RECOVERY OR ROOTFS?
-		char str[32];
-		memset(str, 0, sizeof(str));
-		if(access("ramdisk-mtk-boot", R_OK)==0) {
-			strcpy(str, "ROOTFS");
-		} else if(access("ramdisk-mtk-recovery", R_OK)==0) {
-			strcpy(str, "RECOVERY");
-		} else {
-			exit(1);
-		}
-		memcpy(buf+8, str, sizeof(str));
-
-		memset(buf+8+sizeof(str), 0xff, 512-8-sizeof(str));
-
-		pwrite(ofd, buf, sizeof(buf), pos);
-
-		return append_file(ofd, "ramdisk.gz", pos + 512) + 512;
-	} else if(access("ramdisk.gz", R_OK) == 0) {
-		return append_file(ofd, "ramdisk.gz", pos);
-	} else {
-		return append_file(ofd, "ramdisk", pos);
-	}
-}
-
-void post_process(struct boot_img_hdr *hdr, int ofd, int pos) {
-	if(access("rkcrc", R_OK) == 0) {
-		fprintf(stderr, "Rockchip CRCs not supported yet\n");
-		exit(1);
-	}
-	//Round up the file size
-	ftruncate(ofd, pos);
-}
-
-int repack(char *image) {
-
-	//TODO: Merge with extract.c?
-	//{
-	int ifd = open(image, O_RDONLY);
-	off_t isize = lseek(ifd, 0, SEEK_END);
-	lseek(ifd, 0, SEEK_SET);
-	uint8_t *iorig = mmap(NULL, isize, PROT_READ, MAP_SHARED, ifd, 0);
-	uint8_t *ibase = iorig;
-	assert(ibase);
-
-	while(ibase<(iorig+isize)) {
-		if(memcmp(ibase, BOOT_MAGIC, BOOT_MAGIC_SIZE) == 0)
-			break;
-		ibase += 256;
-	}
-	assert(ibase < (iorig+isize));
-	//}
-	//
-	struct boot_img_hdr *ihdr = (struct boot_img_hdr*) ibase;
-	assert(
-			ihdr->page_size == 2048 ||
-			ihdr->page_size == 4096 ||
-			ihdr->page_size == 16384
-			);
-
-	unlink("new-boot.img");
-	int ofd = open("new-boot.img", O_RDWR|O_CREAT, 0644);
-	ftruncate(ofd, ihdr->page_size);
-	//Write back original header, we'll change it later
-	write(ofd, ihdr, sizeof(*ihdr));
-
-	struct boot_img_hdr *hdr = mmap(NULL, sizeof(*ihdr), PROT_READ|PROT_WRITE, MAP_SHARED, ofd, 0);
-	//First set everything to zero, so we know where we are at.
-	hdr->kernel_size = 0;
-	hdr->ramdisk_size = 0;
-	hdr->second_size = 0;
-	hdr->unused[0] = 0;
-	memset(hdr->id, 0, sizeof(hdr->id)); //Setting id to 0 might be wrong?
-
-	int pos = hdr->page_size;
-	int size = 0;
-
-	size = append_file(ofd, "kernel", pos);
-	pos += size + hdr->page_size - 1;
-	pos &= ~(hdr->page_size-1);
-	hdr->kernel_size = size;
-
-	size = append_ramdisk(ofd, pos);
-	pos += size + hdr->page_size - 1;
-	pos &= ~(hdr->page_size-1);
-	hdr->ramdisk_size = size;
-
-	if(access("second", R_OK) == 0) {
-		size = append_file(ofd, "second", pos);
-		pos += size + hdr->page_size - 1;
-		pos &= ~(hdr->page_size-1);
-		hdr->second_size = size;
-	}
-
-	if(access("dt", R_OK) == 0) {
-		size = append_file(ofd, "dt", pos);
-		pos += size + hdr->page_size - 1;
-		pos &= ~(hdr->page_size-1);
-		hdr->unused[0] = size;
-	}
-
-	post_process(hdr, ofd, pos);
-	munmap(hdr, sizeof(*ihdr));
-	close(ofd);
-
-	return 0;
-}

native/.gitignore

@@ -0,0 +1,3 @@
+/build
+obj
+libs

native/build.gradle

@@ -0,0 +1,20 @@
+apply plugin: 'com.android.library'
+
+android {
+    compileSdkVersion 27
+
+    externalNativeBuild {
+        ndkBuild {
+            path 'jni/Android.mk'
+        }
+    }
+
+    defaultConfig {
+        externalNativeBuild {
+            ndkBuild {
+                // Passes an optional argument to ndk-build.
+                arguments "GRADLE=true"
+            }
+        }
+    }
+}

native/jni/Android.mk

@@ -0,0 +1,137 @@
+LOCAL_PATH := $(call my-dir)
+
+# Some handy paths
+EXT_PATH := jni/external
+SE_PATH := $(EXT_PATH)/selinux
+LIBSELINUX := $(SE_PATH)/libselinux/include
+LIBSEPOL := $(SE_PATH)/libsepol/include $(SE_PATH)/libsepol/cil/include
+LIBLZMA := $(EXT_PATH)/xz/src/liblzma/api
+LIBLZ4 := $(EXT_PATH)/lz4/lib
+LIBBZ2 := $(EXT_PATH)/bzip2
+LIBFDT := $(EXT_PATH)/dtc/libfdt
+UTIL_SRC := utils/cpio.c \
+            utils/file.c \
+            utils/img.c \
+            utils/list.c \
+            utils/misc.c \
+            utils/pattern.c \
+            utils/vector.c \
+            utils/xwrap.c
+
+########################
+# Binaries
+########################
+
+ifneq "$(or $(PRECOMPILE), $(GRADLE))" ""
+
+# magisk main binary
+include $(CLEAR_VARS)
+LOCAL_MODULE := magisk
+LOCAL_SHARED_LIBRARIES := libsqlite libselinux
+
+LOCAL_C_INCLUDES := \
+	jni/include \
+	$(EXT_PATH)/include \
+	$(LIBSELINUX)
+
+LOCAL_SRC_FILES := \
+	core/magisk.c \
+	core/daemon.c \
+	core/log_monitor.c \
+	core/bootstages.c \
+	core/socket.c \
+	magiskhide/magiskhide.c \
+	magiskhide/proc_monitor.c \
+	magiskhide/hide_utils.c \
+	resetprop/resetprop.cpp \
+	resetprop/system_properties.cpp \
+	su/su.c \
+	su/activity.c \
+	su/db.c \
+	su/pts.c \
+	su/su_daemon.c \
+	su/su_socket.c \
+	$(UTIL_SRC)
+
+LOCAL_CFLAGS := -DIS_DAEMON -DSELINUX
+LOCAL_LDLIBS := -llog
+include $(BUILD_EXECUTABLE)
+
+endif
+
+ifndef PRECOMPILE
+
+# magiskinit
+include $(CLEAR_VARS)
+LOCAL_MODULE := magiskinit
+LOCAL_STATIC_LIBRARIES := libsepol liblzma
+LOCAL_C_INCLUDES := \
+	jni/include \
+	jni/magiskpolicy \
+	../out/$(TARGET_ARCH_ABI) \
+	$(LIBSEPOL) \
+	$(LIBLZMA)
+
+LOCAL_SRC_FILES := \
+	core/magiskinit.c \
+	core/socket.c \
+	magiskpolicy/api.c \
+	magiskpolicy/magiskpolicy.c \
+	magiskpolicy/rules.c \
+	magiskpolicy/sepolicy.c \
+	$(UTIL_SRC)
+
+LOCAL_LDFLAGS := -static
+include $(BUILD_EXECUTABLE)
+
+# magiskboot
+include $(CLEAR_VARS)
+LOCAL_MODULE := magiskboot
+LOCAL_STATIC_LIBRARIES := libmincrypt liblzma liblz4 libbz2 libfdt
+LOCAL_C_INCLUDES := \
+	jni/include \
+	$(EXT_PATH)/include \
+	$(LIBLZMA) \
+	$(LIBLZ4) \
+	$(LIBBZ2) \
+	$(LIBFDT)
+
+LOCAL_SRC_FILES := \
+	magiskboot/main.c \
+	magiskboot/bootimg.c \
+	magiskboot/hexpatch.c \
+	magiskboot/compress.c \
+	magiskboot/format.c \
+	magiskboot/dtb.c \
+	magiskboot/ramdisk.c \
+	$(UTIL_SRC)
+
+LOCAL_CFLAGS := -DXWRAP_EXIT
+LOCAL_LDLIBS := -lz
+include $(BUILD_EXECUTABLE)
+
+# 32-bit static binaries
+ifndef GRADLE  # Do not run gradle sync on these binaries
+ifneq ($(TARGET_ARCH_ABI), x86_64)
+ifneq ($(TARGET_ARCH_ABI), arm64-v8a)
+# b64xz
+include $(CLEAR_VARS)
+LOCAL_MODULE := b64xz
+LOCAL_STATIC_LIBRARIES := liblzma
+LOCAL_C_INCLUDES := $(LIBLZMA)
+LOCAL_SRC_FILES := b64xz.c
+LOCAL_LDFLAGS := -static
+include $(BUILD_EXECUTABLE)
+# Busybox
+include jni/external/busybox/Android.mk
+endif
+endif
+endif
+
+# Precompile
+endif
+
+########################
+# Externals
+########################
+include jni/external/Android.mk

native/jni/Application.mk

@@ -0,0 +1,5 @@
+APP_ABI := x86 x86_64 armeabi-v7a arm64-v8a
+APP_PLATFORM := android-21
+APP_CFLAGS := $(MAGISK_FLAGS) -std=gnu99
+APP_CPPFLAGS := -std=c++11
+APP_SHORT_COMMANDS := true

native/jni/b64xz.c

@@ -0,0 +1,83 @@
+/* b64xz.c - Base64-XZ Extractor
+ *
+ * This program expects data from stdin. The data should be compressed with xz and
+ * then encoded into base64 format. What b64xz does is basically the reverse of the
+ * mentioned process: decode base64 to uint8_ts, decompress xz, then dump to stdout
+ *
+ * The compiled binary will be hex-dumped into update-binary
+ * Busybox will be xz-compressed, base64 encoded and dumped into update-binary
+ * This program is to recover busybox for Magisk installation environment
+ *
+ * I intentionally removed stdio. This will result in a smaller binary size because
+ * all I/O are handled by system calls (read/write) instead of libc wrappers
+ */
+
+#include <unistd.h>
+#include <lzma.h>
+
+#define BUFSIZE 8192
+
+static const char trans_tbl[] =
+		"|$$$}rstuvwxyz{$$$$$$$>?@ABCDEFGHIJKLMNOPQRSTUVW$$$$$$XYZ[\\]^_`abcdefghijklmnopq";
+
+static void decodeblock(uint8_t* in, uint8_t* out) {
+	out[0] = (uint8_t)(in[0] << 2 | in[1] >> 4);
+	out[1] = (uint8_t)(in[1] << 4 | in[2] >> 2);
+	out[2] = (uint8_t)(((in[2] << 6) & 0xc0) | in[3]);
+}
+
+static int unxz(lzma_stream *strm, void *buf, size_t size) {
+	lzma_ret ret = 0;
+	uint8_t out[BUFSIZE];
+	strm->next_in = buf;
+	strm->avail_in = size;
+	do {
+		strm->next_out = out;
+		strm->avail_out = sizeof(out);
+		ret = lzma_code(strm, LZMA_RUN);
+		write(STDOUT_FILENO, out, sizeof(out) - strm->avail_out);
+	} while (strm->avail_out == 0 && ret == LZMA_OK);
+
+	if (ret != LZMA_OK && ret != LZMA_STREAM_END)
+		write(STDERR_FILENO, "LZMA error!\n", 13);
+	return ret;
+}
+
+int main(int argc, char const* argv[]) {
+	if (argc > 1)
+		return 0;
+
+	uint8_t in[4], buf[BUFSIZE];
+	int len = 0, pos = 0;
+	char c;
+
+	// Setup lzma stream
+	lzma_stream strm = LZMA_STREAM_INIT;
+	if (lzma_auto_decoder(&strm, UINT64_MAX, 0) != LZMA_OK) {
+		write(STDERR_FILENO, "Unable to init lzma stream\n", 28);
+		return 1;
+	}
+
+	while (read(STDIN_FILENO, &c, sizeof(c)) == 1) {
+		c = ((c < 43 || c > 122) ? -1 : (trans_tbl[c - 43] == '$' ? -1 : trans_tbl[c - 43] - 62));
+		if (c >= 0)
+			in[len++] = c;
+		if (len < 4)
+			continue;
+		len = 0;
+		decodeblock(in, buf + pos);
+		pos += 3;
+		if (pos > sizeof(buf) - 3) {
+			// Buffer is full, unxz
+			if (unxz(&strm, buf, pos))
+				return 1;
+			pos = 0;
+		}
+	}
+	if (pos) {
+		if (unxz(&strm, buf, pos))
+			return 1;
+	}
+	lzma_end(&strm);
+	return 0;
+}

native/jni/core/bootstages.c

@@ -0,0 +1,683 @@
+/* bootstages.c - Core bootstage operations
+ *
+ * All bootstage operations, including simple mount in post-fs,
+ * magisk mount in post-fs-data, various image handling, script
+ * execution, load modules, install Magisk Manager etc.
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <string.h>
+#include <dirent.h>
+#include <sys/mount.h>
+#include <sys/wait.h>
+#include <selinux/selinux.h>
+
+#include "magisk.h"
+#include "utils.h"
+#include "daemon.h"
+#include "resetprop.h"
+
+static char *buf, *buf2;
+static struct vector module_list;
+
+extern char **environ;
+
+/******************
+ * Node structure *
+ ******************/
+
+// Precedence: MODULE > SKEL > INTER > DUMMY
+#define IS_DUMMY   0x01    /* mount from mirror */
+#define IS_INTER   0x02    /* intermediate node */
+#define IS_SKEL    0x04    /* mount from skeleton */
+#define IS_MODULE  0x08    /* mount from module */
+
+#define IS_DIR(n)  (n->type == DT_DIR)
+#define IS_LNK(n)  (n->type == DT_LNK)
+#define IS_REG(n)  (n->type == DT_REG)
+
+struct node_entry {
+	const char *module;    /* Only used when status & IS_MODULE */
+	char *name;
+	uint8_t type;
+	uint8_t status;
+	struct node_entry *parent;
+	struct vector *children;
+};
+
+static void concat_path(struct node_entry *node) {
+	if (node->parent)
+		concat_path(node->parent);
+	size_t len = strlen(buf);
+	buf[len] = '/';
+	strcpy(buf + len + 1, node->name);
+}
+
+static char *get_full_path(struct node_entry *node) {
+	buf[0] = '\0';
+	concat_path(node);
+	return strdup(buf);
+}
+
+// Free the node
+static void destroy_node(struct node_entry *node) {
+	free(node->name);
+	vec_destroy(node->children);
+	free(node->children);
+	free(node);
+}
+
+// Free the node and all children recursively
+static void destroy_subtree(struct node_entry *node) {
+	// Never free parent, since it shall be freed by themselves
+	struct node_entry *e;
+	vec_for_each(node->children, e) {
+		destroy_subtree(e);
+	}
+	destroy_node(node);
+}
+
+// Return the child
+static struct node_entry *insert_child(struct node_entry *p, struct node_entry *c) {
+	c->parent = p;
+	if (p->children == NULL) {
+		p->children = xmalloc(sizeof(struct vector));
+		vec_init(p->children);
+	}
+	struct node_entry *e;
+	vec_for_each(p->children, e) {
+		if (strcmp(e->name, c->name) == 0) {
+			// Exist duplicate
+			if (c->status > e->status) {
+				// Precedence is higher, replace with new node
+				destroy_subtree(e);
+				vec_cur(p->children) = c;
+				return c;
+			} else {
+				// Free the new entry, return old
+				destroy_node(c);
+				return e;
+			}
+		}
+	}
+	// New entry, push back
+	vec_push_back(p->children, c);
+	return c;
+}
+
+/***********
+ * setenvs *
+ ***********/
+
+static void bb_setenv(struct vector *v) {
+	for (int i = 0; environ[i]; ++i) {
+		if (strncmp(environ[i], "PATH=", 5) == 0) {
+			snprintf(buf, PATH_MAX, "PATH=%s:%s", BBPATH, strchr(environ[i], '=') + 1);
+			vec_push_back(v, strdup(buf));
+		} else {
+			vec_push_back(v, strdup(environ[i]));
+		}
+	}
+	vec_push_back(v, NULL);
+}
+
+static void pm_setenv(struct vector *v) {
+	for (int i = 0; environ[i]; ++i) {
+		if (strncmp(environ[i], "CLASSPATH=", 10) != 0)
+			vec_push_back(v, strdup(environ[i]));
+	}
+	vec_push_back(v, strdup("CLASSPATH=/system/framework/pm.jar"));
+	vec_push_back(v, NULL);
+}
+
+/***********
+ * Scripts *
+ ***********/
+
+static void exec_common_script(const char* stage) {
+	DIR *dir;
+	struct dirent *entry;
+	snprintf(buf2, PATH_MAX, "%s/%s.d", COREDIR, stage);
+
+	if (!(dir = xopendir(buf2)))
+		return;
+
+	while ((entry = xreaddir(dir))) {
+		if (entry->d_type == DT_REG) {
+			snprintf(buf2, PATH_MAX, "%s/%s.d/%s", COREDIR, stage, entry->d_name);
+			if (access(buf2, X_OK) == -1)
+				continue;
+			LOGI("%s.d: exec [%s]\n", stage, entry->d_name);
+			int pid = exec_command(0, NULL, bb_setenv, "sh", buf2, NULL);
+			if (pid != -1)
+				waitpid(pid, NULL, 0);
+		}
+	}
+
+	closedir(dir);
+}
+
+static void exec_module_script(const char* stage) {
+	char *module;
+	vec_for_each(&module_list, module) {
+		snprintf(buf2, PATH_MAX, "%s/%s/%s.sh", MOUNTPOINT, module, stage);
+		snprintf(buf, PATH_MAX, "%s/%s/disable", MOUNTPOINT, module);
+		if (access(buf2, F_OK) == -1 || access(buf, F_OK) == 0)
+			continue;
+		LOGI("%s: exec [%s.sh]\n", module, stage);
+		int pid = exec_command(0, NULL, bb_setenv, "sh", buf2, NULL);
+		if (pid != -1)
+			waitpid(pid, NULL, 0);
+	}
+
+}
+
+/***************
+ * Magic Mount *
+ ***************/
+
+static void construct_tree(const char *module, struct node_entry *parent) {
+	DIR *dir;
+	struct dirent *entry;
+	struct node_entry *node;
+
+	char *parent_path = get_full_path(parent);
+	snprintf(buf, PATH_MAX, "%s/%s%s", MOUNTPOINT, module, parent_path);
+
+	if (!(dir = xopendir(buf)))
+		goto cleanup;
+
+	while ((entry = xreaddir(dir))) {
+		if (strcmp(entry->d_name, ".") == 0 || strcmp(entry->d_name, "..") == 0)
+			continue;
+		// Create new node
+		node = xcalloc(sizeof(*node), 1);
+		node->module = module;
+		node->name = strdup(entry->d_name);
+		node->type = entry->d_type;
+		snprintf(buf, PATH_MAX, "%s/%s", parent_path, node->name);
+
+		/*
+		 * Clone the parent in the following condition:
+		 * 1. File in module is a symlink
+		 * 2. Target file do not exist
+		 * 3. Target file is a symlink, but not /system/vendor
+		 */
+		int clone = 0;
+		if (IS_LNK(node) || access(buf, F_OK) == -1) {
+			clone = 1;
+		} else if (parent->parent != NULL || strcmp(node->name, "vendor") != 0) {
+			struct stat s;
+			xstat(buf, &s);
+			if (S_ISLNK(s.st_mode))
+				clone = 1;
+		}
+
+		if (clone) {
+			// Mark the parent folder as a skeleton
+			parent->status |= IS_SKEL;  /* This will not overwrite if parent is module */
+			node->status = IS_MODULE;
+		} else if (IS_DIR(node)) {
+			// Check if marked as replace
+			snprintf(buf2, PATH_MAX, "%s/%s%s/.replace", MOUNTPOINT, module, buf);
+			if (access(buf2, F_OK) == 0) {
+				// Replace everything, mark as leaf
+				node->status = IS_MODULE;
+			} else {
+				// This will be an intermediate node
+				node->status = IS_INTER;
+			}
+		} else if (IS_REG(node)) {
+			// This is a leaf, mark as target
+			node->status = IS_MODULE;
+		}
+		node = insert_child(parent, node);
+		if (node->status & (IS_SKEL | IS_INTER)) {
+			// Intermediate folder, travel deeper
+			construct_tree(module, node);
+		}
+	}
+
+	closedir(dir);
+
+cleanup:
+	free(parent_path);
+}
+
+static void clone_skeleton(struct node_entry *node) {
+	DIR *dir;
+	struct dirent *entry;
+	struct node_entry *dummy, *child;
+
+	// Clone the structure
+	char *full_path = get_full_path(node);
+	snprintf(buf, PATH_MAX, "%s%s", MIRRDIR, full_path);
+	if (!(dir = xopendir(buf)))
+		goto cleanup;
+	while ((entry = xreaddir(dir))) {
+		if (strcmp(entry->d_name, ".") == 0 || strcmp(entry->d_name, "..") == 0)
+			continue;
+		// Create dummy node
+		dummy = xcalloc(sizeof(*dummy), 1);
+		dummy->name = strdup(entry->d_name);
+		dummy->type = entry->d_type;
+		dummy->status = IS_DUMMY;
+		insert_child(node, dummy);
+	}
+	closedir(dir);
+
+	if (node->status & IS_SKEL) {
+		struct stat s;
+		char *con;
+		xstat(full_path, &s);
+		getfilecon(full_path, &con);
+		LOGI("mnt_tmpfs : %s\n", full_path);
+		xmount("tmpfs", full_path, "tmpfs", 0, NULL);
+		chmod(full_path, s.st_mode & 0777);
+		chown(full_path, s.st_uid, s.st_gid);
+		setfilecon(full_path, con);
+		free(con);
+	}
+
+	vec_for_each(node->children, child) {
+		snprintf(buf, PATH_MAX, "%s/%s", full_path, child->name);
+
+		// Create the dummy file/directory
+		if (IS_DIR(child))
+			xmkdir(buf, 0755);
+		else if (IS_REG(child))
+			close(creat(buf, 0644));
+		// Links will be handled later
+
+		if (child->parent->parent == NULL && strcmp(child->name, "vendor") == 0) {
+			if (IS_LNK(child)) {
+				cp_afc(MIRRDIR "/system/vendor", "/system/vendor");
+				LOGI("creat_link: %s <- %s\n", "/system/vendor", MIRRDIR "/system/vendor");
+			}
+			// Skip
+			continue;
+		} else if (child->status & IS_MODULE) {
+			// Mount from module file to dummy file
+			snprintf(buf2, PATH_MAX, "%s/%s%s/%s", MOUNTPOINT, child->module, full_path, child->name);
+		} else if (child->status & (IS_SKEL | IS_INTER)) {
+			// It's an intermediate folder, recursive clone
+			clone_skeleton(child);
+			continue;
+		} else if (child->status & IS_DUMMY) {
+			// Mount from mirror to dummy file
+			snprintf(buf2, PATH_MAX, "%s%s/%s", MIRRDIR, full_path, child->name);
+		}
+
+		if (IS_LNK(child)) {
+			// Copy symlinks directly
+			cp_afc(buf2, buf);
+			#ifdef MAGISK_DEBUG
+				LOGI("creat_link: %s <- %s\n",buf, buf2);
+			#else
+				LOGI("creat_link: %s\n", buf);
+			#endif
+		} else {
+			snprintf(buf, PATH_MAX, "%s/%s", full_path, child->name);
+			bind_mount(buf2, buf);
+		}
+	}
+
+cleanup:
+	free(full_path);
+}
+
+static void magic_mount(struct node_entry *node) {
+	char *real_path;
+	struct node_entry *child;
+
+	if (node->status & IS_MODULE) {
+		// The real deal, mount module item
+		real_path = get_full_path(node);
+		snprintf(buf, PATH_MAX, "%s/%s%s", MOUNTPOINT, node->module, real_path);
+		bind_mount(buf, real_path);
+		free(real_path);
+	} else if (node->status & IS_SKEL) {
+		// The node is labeled to be cloned with skeleton, lets do it
+		clone_skeleton(node);
+	} else if (node->status & IS_INTER) {
+		// It's an intermediate node, travel deeper
+		vec_for_each(node->children, child)
+			magic_mount(child);
+	}
+	// The only thing goes here should be vendor placeholder
+	// There should be no dummies, so don't need to handle it here
+}
+
+/****************
+ * Simple Mount *
+ ****************/
+
+static void simple_mount(const char *path) {
+	DIR *dir;
+	struct dirent *entry;
+
+	snprintf(buf, PATH_MAX, "%s%s", CACHEMOUNT, path);
+	if (!(dir = opendir(buf)))
+		return;
+
+	while ((entry = xreaddir(dir))) {
+		if (strcmp(entry->d_name, ".") == 0 || strcmp(entry->d_name, "..") == 0)
+			continue;
+		// Target file path
+		snprintf(buf2, PATH_MAX, "%s/%s", path, entry->d_name);
+		// Only mount existing file
+		if (access(buf2, F_OK) == -1)
+			continue;
+		if (entry->d_type == DT_DIR) {
+			char *new_path = strdup(buf2);
+			simple_mount(new_path);
+			free(new_path);
+		} else if (entry->d_type == DT_REG) {
+			// Actual file path
+			snprintf(buf, PATH_MAX, "%s%s", CACHEMOUNT, buf2);
+			// Clone all attributes
+			clone_attr(buf2, buf);
+			// Finally, mount the file
+			bind_mount(buf, buf2);
+		}
+	}
+
+	closedir(dir);
+}
+
+/*****************
+ * Miscellaneous *
+ *****************/
+
+#define alt_img ((char *[]) \
+{ "/cache/magisk.img", "/data/magisk_merge.img", "/data/adb/magisk_merge.img", NULL })
+
+static int prepare_img() {
+	// Merge images
+	for (int i = 0; alt_img[i]; ++i) {
+		if (merge_img(alt_img[i], MAINIMG)) {
+			LOGE("Image merge %s -> " MAINIMG " failed!\n", alt_img[i]);
+			return 1;
+		}
+	}
+
+	if (access(MAINIMG, F_OK) == -1) {
+		if (create_img(MAINIMG, 64))
+			return 1;
+	}
+
+	LOGI("* Mounting " MAINIMG "\n");
+	// Mounting magisk image
+	char *magiskloop = mount_image(MAINIMG, MOUNTPOINT);
+	if (magiskloop == NULL)
+		return 1;
+
+	xmkdir(COREDIR, 0755);
+	xmkdir(COREDIR "/post-fs-data.d", 0755);
+	xmkdir(COREDIR "/service.d", 0755);
+	xmkdir(COREDIR "/props", 0755);
+
+	DIR *dir = xopendir(MOUNTPOINT);
+	struct dirent *entry;
+	while ((entry = xreaddir(dir))) {
+		if (entry->d_type == DT_DIR) {
+			if (strcmp(entry->d_name, ".") == 0 ||
+				strcmp(entry->d_name, "..") == 0 ||
+				strcmp(entry->d_name, ".core") == 0 ||
+				strcmp(entry->d_name, "lost+found") == 0)
+				continue;
+			snprintf(buf, PATH_MAX, "%s/%s/remove", MOUNTPOINT, entry->d_name);
+			if (access(buf, F_OK) == 0) {
+				snprintf(buf, PATH_MAX, "%s/%s", MOUNTPOINT, entry->d_name);
+				rm_rf(buf);
+				continue;
+			}
+			snprintf(buf, PATH_MAX, "%s/%s/disable", MOUNTPOINT, entry->d_name);
+			if (access(buf, F_OK) == 0)
+				continue;
+			vec_push_back(&module_list, strdup(entry->d_name));
+		}
+	}
+
+	closedir(dir);
+
+	// Trim image
+	umount_image(MOUNTPOINT, magiskloop);
+	free(magiskloop);
+	trim_img(MAINIMG);
+
+	// Remount them back :)
+	magiskloop = mount_image(MAINIMG, MOUNTPOINT);
+	free(magiskloop);
+
+	// Fix file selinux contexts
+	fix_filecon();
+	return 0;
+}
+
+void fix_filecon() {
+	int dirfd = xopen(MOUNTPOINT, O_RDONLY | O_CLOEXEC);
+	restorecon(dirfd, 0);
+	close(dirfd);
+}
+
+/****************
+ * Entry points *
+ ****************/
+
+static void unblock_boot_process() {
+	close(xopen(UNBLOCKFILE, O_RDONLY | O_CREAT, 0));
+	pthread_exit(NULL);
+}
+
+void post_fs(int client) {
+	LOGI("** post-fs mode running\n");
+	// ack
+	write_int(client, 0);
+	close(client);
+
+	// Uninstall or core only mode
+	if (access(UNINSTALLER, F_OK) == 0 || access(DISABLEFILE, F_OK) == 0)
+		goto unblock;
+
+	// Allocate buffer
+	buf = xmalloc(PATH_MAX);
+	buf2 = xmalloc(PATH_MAX);
+
+	simple_mount("/system");
+	simple_mount("/vendor");
+
+unblock:
+	unblock_boot_process();
+}
+
+void post_fs_data(int client) {
+	// ack
+	write_int(client, 0);
+	close(client);
+	if (!is_daemon_init && !check_data())
+		goto unblock;
+
+	// Start the debug log
+	start_debug_full_log();
+
+	LOGI("** post-fs-data mode running\n");
+
+	// Allocate buffer
+	if (buf == NULL) buf = xmalloc(PATH_MAX);
+	if (buf2 == NULL) buf2 = xmalloc(PATH_MAX);
+	vec_init(&module_list);
+
+	// Initialize
+	if (!is_daemon_init)
+		daemon_init();
+
+	// uninstaller
+	if (access(UNINSTALLER, F_OK) == 0) {
+		close(open(UNBLOCKFILE, O_RDONLY | O_CREAT));
+		setenv("BOOTMODE", "true", 1);
+		exec_command(0, NULL, bb_setenv, "sh", UNINSTALLER, NULL);
+		return;
+	}
+
+	// Merge, trim, mount magisk.img, which will also travel through the modules
+	// After this, it will create the module list
+	if (prepare_img())
+		goto core_only; // Mounting fails, we can only do core only stuffs
+
+	// Run common scripts
+	LOGI("* Running post-fs-data.d scripts\n");
+	exec_common_script("post-fs-data");
+
+	// Core only mode
+	if (access(DISABLEFILE, F_OK) == 0)
+		goto core_only;
+
+	// Execute module scripts
+	LOGI("* Running module post-fs-data scripts\n");
+	exec_module_script("post-fs-data");
+
+	char *module;
+	struct node_entry *sys_root, *ven_root = NULL, *child;
+
+	// Create the system root entry
+	sys_root = xcalloc(sizeof(*sys_root), 1);
+	sys_root->name = strdup("system");
+	sys_root->status = IS_INTER;
+
+	int has_modules = 0;
+
+	LOGI("* Loading modules\n");
+	vec_for_each(&module_list, module) {
+		// Read props
+		snprintf(buf, PATH_MAX, "%s/%s/system.prop", MOUNTPOINT, module);
+		if (access(buf, F_OK) == 0) {
+			LOGI("%s: loading [system.prop]\n", module);
+			read_prop_file(buf, 0);
+		}
+		// Check whether enable auto_mount
+		snprintf(buf, PATH_MAX, "%s/%s/auto_mount", MOUNTPOINT, module);
+		if (access(buf, F_OK) == -1)
+			continue;
+		// Double check whether the system folder exists
+		snprintf(buf, PATH_MAX, "%s/%s/system", MOUNTPOINT, module);
+		if (access(buf, F_OK) == -1)
+			continue;
+
+		// Construct structure
+		has_modules = 1;
+		LOGI("%s: constructing magic mount structure\n", module);
+		// If /system/vendor exists in module, create a link outside
+		snprintf(buf, PATH_MAX, "%s/%s/system/vendor", MOUNTPOINT, module);
+		if (access(buf, F_OK) == 0) {
+			snprintf(buf2, PATH_MAX, "%s/%s/vendor", MOUNTPOINT, module);
+			unlink(buf2);
+			xsymlink(buf, buf2);
+		}
+		construct_tree(module, sys_root);
+	}
+
+	if (has_modules) {
+		// Extract the vendor node out of system tree and swap with placeholder
+		vec_for_each(sys_root->children, child) {
+			if (strcmp(child->name, "vendor") == 0) {
+				ven_root = child;
+				child = xcalloc(sizeof(*child), 1);
+				child->type = seperate_vendor ? DT_LNK : DT_DIR;
+				child->parent = ven_root->parent;
+				child->name = strdup("vendor");
+				child->status = 0;
+				// Swap!
+				vec_cur(sys_root->children) = child;
+				ven_root->parent = NULL;
+				break;
+			}
+		}
+
+		// Magic!!
+		magic_mount(sys_root);
+		if (ven_root) magic_mount(ven_root);
+	}
+
+	// Cleanup memory
+	destroy_subtree(sys_root);
+	if (ven_root) destroy_subtree(ven_root);
+
+core_only:
+	// Systemless hosts
+	if (access(HOSTSFILE, F_OK) == 0) {
+		LOGI("* Enabling systemless hosts file support");
+		bind_mount(HOSTSFILE, "/system/etc/hosts");
+	}
+
+	auto_start_magiskhide();
+
+unblock:
+	unblock_boot_process();
+}
+
+void late_start(int client) {
+	LOGI("** late_start service mode running\n");
+	// ack
+	write_int(client, 0);
+	close(client);
+
+	// Allocate buffer
+	if (buf == NULL) buf = xmalloc(PATH_MAX);
+	if (buf2 == NULL) buf2 = xmalloc(PATH_MAX);
+
+	// Wait till the full patch is done
+	wait_till_exists(PATCHDONE);
+	unlink(PATCHDONE);
+
+	// Run scripts after full patch, most reliable way to run scripts
+	LOGI("* Running service.d scripts\n");
+	exec_common_script("service");
+
+	// Core only mode
+	if (access(DISABLEFILE, F_OK) == 0)
+		goto core_only;
+
+	LOGI("* Running module service scripts\n");
+	exec_module_script("service");
+
+core_only:
+	// Install Magisk Manager if exists
+	if (access(MANAGERAPK, F_OK) == 0) {
+		rename(MANAGERAPK, "/data/magisk.apk");
+		setfilecon("/data/magisk.apk", "u:object_r:su_file:s0");
+		while (1) {
+			sleep(5);
+			int apk_res = -1, pid;
+			pid = exec_command(1, &apk_res, pm_setenv,
+				"app_process",
+				"/system/bin", "com.android.commands.pm.Pm",
+				"install", "-r", "/data/magisk.apk", NULL);
+			if (pid != -1) {
+				int err = 0;
+				while (fdgets(buf, PATH_MAX, apk_res) > 0) {
+					LOGD("apk_install: %s", buf);
+					err |= strstr(buf, "Error:") != NULL;
+				}
+				waitpid(pid, NULL, 0);
+				close(apk_res);
+				// Keep trying until pm is started
+				if (err)
+					continue;
+				break;
+			}
+		}
+		unlink("/data/magisk.apk");
+	}
+
+	// All boot stage done, cleanup everything
+	free(buf);
+	free(buf2);
+	buf = buf2 = NULL;
+	vec_deep_destroy(&module_list);
+
+	stop_debug_full_log();
+}

native/jni/core/daemon.c

@@ -0,0 +1,321 @@
+/* daemon.c - Magisk Daemon
+ *
+ * Start the daemon and wait for requests
+ * Connect the daemon and send requests through sockets
+ */
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <string.h>
+#include <pthread.h>
+#include <signal.h>
+#include <sys/un.h>
+#include <sys/types.h>
+#include <sys/mount.h>
+#include <selinux/selinux.h>
+
+#include "magisk.h"
+#include "utils.h"
+#include "daemon.h"
+#include "resetprop.h"
+
+int is_daemon_init = 0, seperate_vendor = 0;
+
+static void *request_handler(void *args) {
+	int client = *((int *) args);
+	free(args);
+	int req = read_int(client);
+
+	struct ucred credential;
+	get_client_cred(client, &credential);
+
+	switch (req) {
+	case LAUNCH_MAGISKHIDE:
+	case STOP_MAGISKHIDE:
+	case ADD_HIDELIST:
+	case RM_HIDELIST:
+	case LS_HIDELIST:
+	case POST_FS:
+	case POST_FS_DATA:
+	case LATE_START:
+		if (credential.uid != 0) {
+			write_int(client, ROOT_REQUIRED);
+			close(client);
+			return NULL;
+		}
+	default:
+		break;
+	}
+
+	switch (req) {
+	case LAUNCH_MAGISKHIDE:
+		launch_magiskhide(client);
+		break;
+	case STOP_MAGISKHIDE:
+		stop_magiskhide(client);
+		break;
+	case ADD_HIDELIST:
+		add_hide_list(client);
+		break;
+	case RM_HIDELIST:
+		rm_hide_list(client);
+		break;
+	case LS_HIDELIST:
+		ls_hide_list(client);
+		break;
+	case SUPERUSER:
+		su_daemon_receiver(client, &credential);
+		break;
+	case CHECK_VERSION:
+		write_string(client, MAGISK_VER_STR);
+		close(client);
+		break;
+	case CHECK_VERSION_CODE:
+		write_int(client, MAGISK_VER_CODE);
+		close(client);
+		break;
+	case POST_FS:
+		post_fs(client);
+		break;
+	case POST_FS_DATA:
+		post_fs_data(client);
+		break;
+	case LATE_START:
+		late_start(client);
+		break;
+	default:
+		break;
+	}
+	return NULL;
+}
+
+
+static void *start_magisk_hide(void *args) {
+	launch_magiskhide(-1);
+	return NULL;
+}
+
+void auto_start_magiskhide() {
+	char *hide_prop = getprop2(MAGISKHIDE_PROP, 1);
+	if (hide_prop == NULL || strcmp(hide_prop, "0") != 0) {
+		pthread_t thread;
+		xpthread_create(&thread, NULL, start_magisk_hide, NULL);
+		pthread_detach(thread);
+	}
+	free(hide_prop);
+}
+
+void daemon_init() {
+	is_daemon_init = 1;
+
+	 // Magisk binaries
+	char *bin_path = NULL;
+	if (access("/cache/data_bin", F_OK) == 0)
+		bin_path = "/cache/data_bin";
+	else if (access("/data/data/com.topjohnwu.magisk/install", F_OK) == 0)
+		bin_path = "/data/data/com.topjohnwu.magisk/install";
+	else if (access("/data/user_de/0/com.topjohnwu.magisk/install", F_OK) == 0)
+		bin_path = "/data/user_de/0/com.topjohnwu.magisk/install";
+	if (bin_path) {
+		rm_rf(DATABIN);
+		cp_afc(bin_path, DATABIN);
+		rm_rf(bin_path);
+	}
+
+	// Migration
+	rm_rf("/data/magisk");
+	unlink("/data/magisk.img");
+	unlink("/data/magisk_debug.log");
+	chmod("/data/adb", 0700);
+
+	LOGI("* Creating /sbin overlay");
+	DIR *dir;
+	struct dirent *entry;
+	int root, sbin;
+	char buf[PATH_MAX], buf2[PATH_MAX];
+	char magisk_name[10], init_name[10];
+
+	// Setup links under /sbin
+	xmount(NULL, "/", NULL, MS_REMOUNT, NULL);
+	xmkdir("/root", 0755);
+	chmod("/root", 0755);
+	root = xopen("/root", O_RDONLY | O_CLOEXEC);
+	sbin = xopen("/sbin", O_RDONLY | O_CLOEXEC);
+	link_dir(sbin, root);
+	unlink("/sbin/magisk");
+	close(sbin);
+
+	xmount("tmpfs", "/sbin", "tmpfs", 0, NULL);
+	chmod("/sbin", 0755);
+	setfilecon("/sbin", "u:object_r:rootfs:s0");
+	dir = xfdopendir(root);
+	while((entry = xreaddir(dir))) {
+		if (strcmp(entry->d_name, ".") == 0 || strcmp(entry->d_name, "..") == 0) continue;
+		snprintf(buf, PATH_MAX, "/root/%s", entry->d_name);
+		snprintf(buf2, PATH_MAX, "/sbin/%s", entry->d_name);
+		xsymlink(buf, buf2);
+	}
+
+	gen_rand_str(magisk_name, sizeof(magisk_name));
+	snprintf(buf, PATH_MAX, "/root/%s", magisk_name);
+	unlink("/sbin/magisk");
+	rename("/root/magisk", buf);
+	xsymlink(buf, "/sbin/magisk");
+	for (int i = 0; applet[i]; ++i) {
+		snprintf(buf2, PATH_MAX, "/sbin/%s", applet[i]);
+		xsymlink(buf, buf2);
+	}
+
+	gen_rand_str(init_name, sizeof(init_name));
+	snprintf(buf, PATH_MAX, "/root/%s", init_name);
+	unlink("/sbin/magiskinit");
+	rename("/root/magiskinit", buf);
+	for (int i = 0; init_applet[i]; ++i) {
+		snprintf(buf2, PATH_MAX, "/sbin/%s", init_applet[i]);
+		xsymlink(buf, buf2);
+	}
+
+	close(root);
+
+	// Backward compatibility
+	xsymlink(DATABIN, "/data/magisk");
+	xsymlink(MAINIMG, "/data/magisk.img");
+	xsymlink(MOUNTPOINT, "/magisk");
+
+	xmount(NULL, "/", NULL, MS_REMOUNT | MS_RDONLY, NULL);
+
+	LOGI("* Mounting mirrors");
+	struct vector mounts;
+	vec_init(&mounts);
+	file_to_vector("/proc/mounts", &mounts);
+	char *line;
+	int skip_initramfs = 0;
+	// Check whether skip_initramfs device
+	vec_for_each(&mounts, line) {
+		if (strstr(line, " /system_root ")) {
+			xmkdirs(MIRRDIR "/system", 0755);
+			bind_mount("/system_root/system", MIRRDIR "/system");
+			skip_initramfs = 1;
+			break;
+		}
+	}
+	vec_for_each(&mounts, line) {
+		if (!skip_initramfs && strstr(line, " /system ")) {
+			sscanf(line, "%s", buf);
+			xmkdirs(MIRRDIR "/system", 0755);
+			xmount(buf, MIRRDIR "/system", "ext4", MS_RDONLY, NULL);
+			#ifdef MAGISK_DEBUG
+				LOGI("mount: %s <- %s\n", MIRRDIR "/system", buf);
+			#else
+				LOGI("mount: %s\n", MIRRDIR "/system");
+			#endif
+		} else if (strstr(line, " /vendor ")) {
+			seperate_vendor = 1;
+			sscanf(line, "%s", buf);
+			xmkdirs(MIRRDIR "/vendor", 0755);
+			xmount(buf, MIRRDIR "/vendor", "ext4", MS_RDONLY, NULL);
+			#ifdef MAGISK_DEBUG
+				LOGI("mount: %s <- %s\n", MIRRDIR "/vendor", buf);
+			#else
+				LOGI("mount: %s\n", MIRRDIR "/vendor");
+			#endif
+		}
+		free(line);
+	}
+	vec_destroy(&mounts);
+	if (!seperate_vendor) {
+		xsymlink(MIRRDIR "/system/vendor", MIRRDIR "/vendor");
+		#ifdef MAGISK_DEBUG
+			LOGI("link: %s <- %s\n", MIRRDIR "/vendor", MIRRDIR "/system/vendor");
+		#else
+			LOGI("link: %s\n", MIRRDIR "/vendor");
+		#endif
+	}
+	xmkdirs(MIRRDIR "/bin", 0755);
+	bind_mount(DATABIN, MIRRDIR "/bin");
+
+	LOGI("* Setting up internal busybox");
+	xmkdirs(BBPATH, 0755);
+	exec_command_sync(MIRRDIR "/bin/busybox", "--install", "-s", BBPATH, NULL);
+	xsymlink(MIRRDIR "/bin/busybox", BBPATH "/busybox");
+}
+
+void start_daemon() {
+	setsid();
+	setcon("u:r:su:s0");
+	umask(0);
+	int fd = xopen("/dev/null", O_RDWR | O_CLOEXEC);
+	xdup2(fd, STDIN_FILENO);
+	xdup2(fd, STDOUT_FILENO);
+	xdup2(fd, STDERR_FILENO);
+	close(fd);
+
+	// Block user signals
+	sigset_t block_set;
+	sigemptyset(&block_set);
+	sigaddset(&block_set, SIGUSR1);
+	sigaddset(&block_set, SIGUSR2);
+	pthread_sigmask(SIG_SETMASK, &block_set, NULL);
+
+	struct sockaddr_un sun;
+	fd = setup_socket(&sun);
+
+	if (xbind(fd, (struct sockaddr*) &sun, sizeof(sun)))
+		exit(1);
+	xlisten(fd, 10);
+
+	// Start the log monitor
+	monitor_logs();
+
+	if ((is_daemon_init = (access(MAGISKTMP, F_OK) == 0))) {
+		// Restart stuffs if the daemon is restarted
+		exec_command_sync("logcat", "-b", "all", "-c", NULL);
+		auto_start_magiskhide();
+		start_debug_log();
+	} else if (check_data()) {
+		daemon_init();
+	}
+
+	LOGI("Magisk v" xstr(MAGISK_VERSION) "(" xstr(MAGISK_VER_CODE) ") daemon started\n");
+
+	// Change process name
+	strcpy(argv0, "magisk_daemon");
+
+	// Unlock all blocks for rw
+	unlock_blocks();
+
+	// Loop forever to listen for requests
+	while(1) {
+		int *client = xmalloc(sizeof(int));
+		*client = xaccept4(fd, NULL, NULL, SOCK_CLOEXEC);
+		pthread_t thread;
+		xpthread_create(&thread, NULL, request_handler, client);
+		// Detach the thread, we will never join it
+		pthread_detach(thread);
+	}
+}
+
+/* Connect the daemon, and return a socketfd */
+int connect_daemon() {
+	struct sockaddr_un sun;
+	int fd = setup_socket(&sun);
+	if (connect(fd, (struct sockaddr*) &sun, sizeof(sun))) {
+		// If we cannot access the daemon, we start a daemon in the child process if possible
+
+		if (getuid() != UID_ROOT || getgid() != UID_ROOT) {
+			fprintf(stderr, "No daemon is currently running!\n");
+			exit(1);
+		}
+
+		if (xfork() == 0) {
+			LOGD("client: connect fail, try launching new daemon process\n");
+			close(fd);
+			start_daemon();
+		}
+
+		while (connect(fd, (struct sockaddr*) &sun, sizeof(sun)))
+			usleep(10000);
+	}
+	return fd;
+}

native/jni/core/log_monitor.c

@@ -0,0 +1,211 @@
+/* log_monitor.c - New thread to monitor logcat
+ *
+ * A universal logcat monitor for many usages. Add listeners to the list,
+ * and the pointer of the new log line will be sent through pipes to trigger
+ * asynchronous events without polling
+ */
+
+#include <stdio.h>
+#include <pthread.h>
+#include <unistd.h>
+#include <sys/wait.h>
+
+#include "magisk.h"
+#include "utils.h"
+#include "resetprop.h"
+
+extern int is_daemon_init;
+int logd = 0;
+
+static int am_proc_start_filter(const char *log) {
+	return strstr(log, "am_proc_start") != NULL;
+}
+
+static int magisk_log_filter(const char *log) {
+	char *ss;
+	return (ss = strstr(log, " Magisk")) && (ss[-1] != 'D') && (ss[-1] != 'V');
+}
+
+static int magisk_debug_log_filter(const char *log) {
+	return strstr(log, "Magisk") != NULL;
+}
+
+struct log_listener log_events[] = {
+	{	/* HIDE_EVENT */
+		.fd = -1,
+		.filter = am_proc_start_filter
+	},
+	{	/* LOG_EVENT */
+		.fd = -1,
+		.filter = magisk_log_filter
+	},
+	{	/* DEBUG_EVENT */
+		.fd = -1,
+		.filter = magisk_debug_log_filter
+	}
+};
+
+#ifdef MAGISK_DEBUG
+static int debug_log_pid = -1, debug_log_fd = -1;
+#endif
+
+static void check_logd() {
+	char *prop = getprop("init.svc.logd");
+	if (prop != NULL) {
+		free(prop);
+		logd = 1;
+	} else {
+		LOGD("log_monitor: logd not started, disable logging");
+		logd = 0;
+	}
+}
+
+static void *logger_thread(void *args) {
+	int log_fd = -1, log_pid;
+	char line[4096];
+
+	LOGD("log_monitor: logger start");
+
+	while (1) {
+		if (!logd) {
+			// Disable all services
+			for (int i = 0; i < (sizeof(log_events) / sizeof(struct log_listener)); ++i) {
+				close(log_events[i].fd);
+				log_events[i].fd = -1;
+			}
+			return NULL;
+		}
+
+		// Start logcat
+		log_pid = exec_command(0, &log_fd, NULL, "logcat", "-b", "events", "-b", "main", "-v", "threadtime", "-s", "am_proc_start", "-s", "Magisk", NULL);
+		while (fdgets(line, sizeof(line), log_fd)) {
+			for (int i = 0; i < (sizeof(log_events) / sizeof(struct log_listener)); ++i) {
+				if (log_events[i].fd > 0 && log_events[i].filter(line)) {
+					char *s = strdup(line);
+					xwrite(log_events[i].fd, &s, sizeof(s));
+				}
+			}
+			if (kill(log_pid, 0))
+				break;
+		}
+
+		// Cleanup
+		close(log_fd);
+		log_fd = -1;
+		kill(log_pid, SIGTERM);
+		waitpid(log_pid, NULL, 0);
+
+		// Clear buffer before restart
+		exec_command_sync("logcat", "-b", "events", "-b", "main", "-c", NULL);
+
+		check_logd();
+	}
+
+	// Should never be here, but well...
+	return NULL;
+}
+
+static void *magisk_log_thread(void *args) {
+	// Buffer logs before we have data access
+	struct vector logs;
+	vec_init(&logs);
+
+	int pipefd[2];
+	if (xpipe2(pipefd, O_CLOEXEC) == -1)
+		return NULL;
+
+	// Register our listener
+	log_events[LOG_EVENT].fd = pipefd[1];
+
+	LOGD("log_monitor: magisk log dumper start");
+
+	FILE *log = NULL;
+	for (char *line; xxread(pipefd[0], &line, sizeof(line)) > 0; free(line)) {
+		if (!is_daemon_init) {
+			vec_push_back(&logs, strdup(line));
+		} else {
+			if (log == NULL) {
+				// Dump buffered logs to file
+				log = xfopen(LOGFILE, "w");
+				setbuf(log, NULL);
+				char *tmp;
+				vec_for_each(&logs, tmp) {
+					fprintf(log, "%s", tmp);
+					free(tmp);
+				}
+				vec_destroy(&logs);
+			}
+			fprintf(log, "%s", line);
+		}
+	}
+	return NULL;
+}
+
+static void *debug_magisk_log_thread(void *args) {
+	FILE *log = xfopen(DEBUG_LOG, "a");
+	setbuf(log, NULL);
+	int pipefd[2];
+	if (xpipe2(pipefd, O_CLOEXEC) == -1)
+		return NULL;
+
+	LOGD("log_monitor: debug log dumper start");
+
+	// Register our listener
+	log_events[DEBUG_EVENT].fd = pipefd[1];
+
+	for (char *line; xxread(pipefd[0], &line, sizeof(line)) > 0; free(line))
+		fprintf(log, "%s", line);
+
+	return NULL;
+}
+
+/* Start new threads to monitor logcat and dump to logfile */
+void monitor_logs() {
+	pthread_t thread;
+
+	check_logd();
+
+	if (logd) {
+		// Start log file dumper before monitor
+		xpthread_create(&thread, NULL, magisk_log_thread, NULL);
+		pthread_detach(thread);
+
+		// Start logcat monitor
+		xpthread_create(&thread, NULL, logger_thread, NULL);
+		pthread_detach(thread);
+	}
+}
+
+void start_debug_full_log() {
+#ifdef MAGISK_DEBUG
+	if (logd) {
+		// Log everything initially
+		debug_log_fd = xopen(DEBUG_LOG, O_WRONLY | O_CREAT | O_CLOEXEC | O_TRUNC, 0644);
+		debug_log_pid = exec_command(0, &debug_log_fd, NULL, "logcat", "-v", "threadtime", NULL);
+		close(debug_log_fd);
+	}
+#endif
+}
+
+void stop_debug_full_log() {
+#ifdef MAGISK_DEBUG
+	// Stop recording the boot logcat after every boot task is done
+	if (debug_log_pid > 0) {
+		kill(debug_log_pid, SIGTERM);
+		waitpid(debug_log_pid, NULL, 0);
+		// Start debug thread
+		start_debug_log();
+	}
+#endif
+}
+
+void start_debug_log() {
+#ifdef MAGISK_DEBUG
+	if (logd) {
+		pthread_t thread;
+		// Start debug thread
+		xpthread_create(&thread, NULL, debug_magisk_log_thread, NULL);
+		pthread_detach(thread);
+	}
+#endif
+}

native/jni/core/magisk.c

@@ -0,0 +1,177 @@
+/* main.c - The multicall entry point
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <libgen.h>
+
+#include "utils.h"
+#include "magisk.h"
+#include "daemon.h"
+
+char *argv0;
+
+int (*applet_main[]) (int, char *[]) = { su_client_main, resetprop_main, magiskhide_main, NULL };
+
+int create_links(const char *bin, const char *path) {
+	char self[PATH_MAX], linkpath[PATH_MAX];
+	if (bin == NULL) {
+		xreadlink("/proc/self/exe", self, sizeof(self));
+		bin = self;
+	}
+	int ret = 0;
+	for (int i = 0; applet[i]; ++i) {
+		snprintf(linkpath, sizeof(linkpath), "%s/%s", path, applet[i]);
+		unlink(linkpath);
+		ret |= symlink(bin, linkpath);
+	}
+	return ret;
+}
+
+static void usage() {
+	fprintf(stderr,
+		"Magisk v" xstr(MAGISK_VERSION) "(" xstr(MAGISK_VER_CODE) ") (by topjohnwu) multi-call binary\n"
+		"\n"
+		"Usage: %s [applet [arguments]...]\n"
+		"   or: %s [options]...\n"
+		"\n"
+		"Options:\n"
+		"   -c                        print current binary version\n"
+		"   -v                        print running daemon version\n"
+		"   -V                        print running daemon version code\n"
+		"   --list                    list all available applets\n"
+		"   --install [SOURCE] DIR    symlink all applets to DIR. SOURCE is optional\n"
+		"   --createimg IMG SIZE      create ext4 image. SIZE is interpreted in MB\n"
+		"   --imgsize IMG             report ext4 image used/total size\n"
+		"   --resizeimg IMG SIZE      resize ext4 image. SIZE is interpreted in MB\n"
+		"   --mountimg IMG PATH       mount IMG to PATH and prints the loop device\n"
+		"   --umountimg PATH LOOP     unmount PATH and delete LOOP device\n"
+		"   --[init service]          start init service\n"
+		"   --unlock-blocks           set BLKROSET flag to OFF for all block devices\n"
+		"   --restorecon              fix selinux context on Magisk files and folders\n"
+		"   --clone-attr SRC DEST     clone permission, owner, and selinux context\n"
+		"\n"
+		"Supported init services:\n"
+		"   daemon, post-fs, post-fs-data, service\n"
+		"\n"
+		"Supported applets:\n"
+	, argv0, argv0);
+
+	for (int i = 0; applet[i]; ++i)
+		fprintf(stderr, i ? ", %s" : "    %s", applet[i]);
+	fprintf(stderr, "\n\n");
+	exit(1);
+}
+
+int main(int argc, char *argv[]) {
+	argv0 = argv[0];
+	if (strcmp(basename(argv[0]), "magisk") == 0) {
+		if (argc < 2) usage();
+		if (strcmp(argv[1], "-c") == 0) {
+			printf("%s (%d)\n", MAGISK_VER_STR, MAGISK_VER_CODE);
+			return 0;
+		} else if (strcmp(argv[1], "-v") == 0) {
+			int fd = connect_daemon();
+			write_int(fd, CHECK_VERSION);
+			char *v = read_string(fd);
+			printf("%s\n", v);
+			free(v);
+			return 0;
+		} else if (strcmp(argv[1], "-V") == 0) {
+			int fd = connect_daemon();
+			write_int(fd, CHECK_VERSION_CODE);
+			printf("%d\n", read_int(fd));
+			return 0;
+		} else if (strcmp(argv[1], "--install") == 0) {
+			if (argc < 3) usage();
+			if (argc == 3) return create_links(NULL, argv[2]);
+			else return create_links(argv[2], argv[3]);
+		} else if (strcmp(argv[1], "--list") == 0) {
+			for (int i = 0; applet[i]; ++i)
+				printf("%s\n", applet[i]);
+			return 0;
+		} else if (strcmp(argv[1], "--createimg") == 0) {
+			if (argc < 4) usage();
+			int size;
+			sscanf(argv[3], "%d", &size);
+			return create_img(argv[2], size);
+		} else if (strcmp(argv[1], "--imgsize") == 0) {
+			if (argc < 3) usage();
+			int used, total;
+			if (get_img_size(argv[2], &used, &total)) {
+				fprintf(stderr, "Cannot check %s size\n", argv[2]);
+				return 1;
+			}
+			printf("%d %d\n", used, total);
+			return 0;
+		} else if (strcmp(argv[1], "--resizeimg") == 0) {
+			if (argc < 4) usage();
+			int used, total, size;
+			sscanf(argv[3], "%d", &size);
+			if (get_img_size(argv[2], &used, &total)) {
+				fprintf(stderr, "Cannot check %s size\n", argv[2]);
+				return 1;
+			}
+			if (size <= used) {
+				fprintf(stderr, "Cannot resize smaller than %dM\n", used);
+				return 1;
+			}
+			return resize_img(argv[2], size);
+		} else if (strcmp(argv[1], "--mountimg") == 0) {
+			if (argc < 4) usage();
+			char *loop = mount_image(argv[2], argv[3]);
+			if (loop == NULL) {
+				fprintf(stderr, "Cannot mount image!\n");
+				return 1;
+			} else {
+				printf("%s\n", loop);
+				free(loop);
+				return 0;
+			}
+		} else if (strcmp(argv[1], "--umountimg") == 0) {
+			if (argc < 4) usage();
+			umount_image(argv[2], argv[3]);
+			return 0;
+		} else if (strcmp(argv[1], "--unlock-blocks") == 0) {
+			unlock_blocks();
+			return 0;
+		} else if (strcmp(argv[1], "--restorecon") == 0) {
+			fix_filecon();
+			return 0;
+		} else if (strcmp(argv[1], "--clone-attr") == 0) {
+			if (argc < 4) usage();
+			clone_attr(argv[2], argv[3]);
+			return 0;
+		} else if (strcmp(argv[1], "--daemon") == 0) {
+			if (xfork() == 0)
+				start_daemon();
+			return 0;
+		} else if (strcmp(argv[1], "--post-fs") == 0) {
+			int fd = connect_daemon();
+			write_int(fd, POST_FS);
+			return read_int(fd);
+		} else if (strcmp(argv[1], "--post-fs-data") == 0) {
+			int fd = connect_daemon();
+			write_int(fd, POST_FS_DATA);
+			return read_int(fd);
+		} else if (strcmp(argv[1], "--service") == 0) {
+			int fd = connect_daemon();
+			write_int(fd, LATE_START);
+			return read_int(fd);
+		} else {
+			// It's calling applets
+			--argc;
+			++argv;
+		}
+	}
+
+	// Applets
+	for (int i = 0; applet[i]; ++i) {
+		if (strcmp(basename(argv[0]), applet[i]) == 0)
+			return (*applet_main[i])(argc, argv);
+	}
+
+	fprintf(stderr, "%s: applet not found\n", basename(argv[0]));
+	return 1;
+}

native/jni/core/magiskinit.c

@@ -0,0 +1,543 @@
+/* magiskinit.c - Pre-init Magisk support
+ *
+ * This code has to be compiled statically to work properly.
+ *
+ * To unify Magisk support for both legacy "normal" devices and new skip_initramfs devices,
+ * magisk binary compilation is split into two parts - first part only compiles "magisk".
+ * The python build script will load the magisk main binary and compress with lzma2, dumping
+ * the results into "dump.h". The "magisk" binary is embedded into this binary, and will
+ * get extracted to the overlay folder along with init.magisk.rc.
+ *
+ * This tool does all pre-init operations to setup a Magisk environment, which pathces rootfs
+ * on the fly, providing fundamental support such as init, init.rc, and sepolicy patching.
+ *
+ * Magiskinit is also responsible for constructing a proper rootfs on skip_initramfs devices.
+ * On skip_initramfs devices, it will parse kernel cmdline, mount sysfs, parse through
+ * uevent files to make the system (or vendor if available) block device node, then copy
+ * rootfs files from system.
+ *
+ * This tool will be replaced with the real init to continue the boot process, but hardlinks are
+ * preserved as it also provides CLI for sepolicy patching (magiskpolicy)
+ */
+
+
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <dirent.h>
+#include <fcntl.h>
+#include <libgen.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/mount.h>
+#include <sys/mman.h>
+#include <sys/sendfile.h>
+#include <sys/sysmacros.h>
+
+#include <lzma.h>
+#include <cil/cil.h>
+
+#include "dump.h"
+#include "magiskrc.h"
+#include "utils.h"
+#include "magiskpolicy.h"
+#include "daemon.h"
+#include "cpio.h"
+#include "magisk.h"
+
+#ifdef MAGISK_DEBUG
+#define VLOG(fmt, ...) printf(fmt, __VA_ARGS__)
+#else
+#define VLOG(fmt, ...)
+#endif
+
+extern policydb_t *policydb;
+int (*init_applet_main[]) (int, char *[]) = { magiskpolicy_main, magiskpolicy_main, NULL };
+static char RAND_SOCKET_NAME[sizeof(SOCKET_NAME)];
+static int SOCKET_OFF = -1;
+
+struct cmdline {
+	char skip_initramfs;
+	char slot[3];
+};
+
+struct device {
+	dev_t major;
+	dev_t minor;
+	char devname[32];
+	char partname[32];
+	char path[64];
+};
+
+static void parse_cmdline(struct cmdline *cmd) {
+	// cleanup
+	memset(cmd, 0, sizeof(&cmd));
+
+	char cmdline[4096];
+	mkdir("/proc", 0555);
+	xmount("proc", "/proc", "proc", 0, NULL);
+	int fd = open("/proc/cmdline", O_RDONLY | O_CLOEXEC);
+	cmdline[read(fd, cmdline, sizeof(cmdline))] = '\0';
+	close(fd);
+	umount("/proc");
+	for (char *tok = strtok(cmdline, " "); tok; tok = strtok(NULL, " ")) {
+		if (strncmp(tok, "androidboot.slot_suffix", 23) == 0) {
+			sscanf(tok, "androidboot.slot_suffix=%s", cmd->slot);
+		} else if (strncmp(tok, "androidboot.slot", 16) == 0) {
+			cmd->slot[0] = '_';
+			sscanf(tok, "androidboot.slot=%c", cmd->slot + 1);
+		} else if (strcmp(tok, "skip_initramfs") == 0) {
+			cmd->skip_initramfs = 1;
+		}
+	}
+
+	VLOG("cmdline: skip_initramfs[%d] slot[%s]\n", cmd->skip_initramfs, cmd->slot);
+}
+
+static void parse_device(struct device *dev, char *uevent) {
+	dev->partname[0] = '\0';
+	char *tok;
+	tok = strtok(uevent, "\n");
+	while (tok != NULL) {
+		if (strncmp(tok, "MAJOR", 5) == 0) {
+			sscanf(tok, "MAJOR=%ld", (long*) &dev->major);
+		} else if (strncmp(tok, "MINOR", 5) == 0) {
+			sscanf(tok, "MINOR=%ld", (long*) &dev->minor);
+		} else if (strncmp(tok, "DEVNAME", 7) == 0) {
+			sscanf(tok, "DEVNAME=%s", dev->devname);
+		} else if (strncmp(tok, "PARTNAME", 8) == 0) {
+			sscanf(tok, "PARTNAME=%s", dev->partname);
+		}
+		tok = strtok(NULL, "\n");
+	}
+	VLOG("%s [%s] (%u, %u)\n", dev->devname, dev->partname, (unsigned) dev->major, (unsigned) dev->minor);
+}
+
+static int setup_block(struct device *dev, const char *partname) {
+	char buffer[1024], path[128];
+	struct dirent *entry;
+	DIR *dir = opendir("/sys/dev/block");
+	if (dir == NULL)
+		return 1;
+	int found = 0;
+	while ((entry = readdir(dir))) {
+		if (strcmp(entry->d_name, ".") == 0 || strcmp(entry->d_name, "..") == 0)
+			continue;
+		snprintf(path, sizeof(path), "/sys/dev/block/%s/uevent", entry->d_name);
+		int fd = open(path, O_RDONLY | O_CLOEXEC);
+		ssize_t size = read(fd, buffer, sizeof(buffer));
+		buffer[size] = '\0';
+		close(fd);
+		parse_device(dev, buffer);
+		if (strcmp(dev->partname, partname) == 0) {
+			snprintf(dev->path, sizeof(dev->path), "/dev/block/%s", dev->devname);
+			found = 1;
+			break;
+		}
+	}
+	closedir(dir);
+
+	if (!found)
+		return 1;
+
+	mkdir("/dev", 0755);
+	mkdir("/dev/block", 0755);
+	mknod(dev->path, S_IFBLK | 0600, makedev(dev->major, dev->minor));
+	return 0;
+}
+
+static void patch_ramdisk() {
+	void *addr;
+	size_t size;
+	mmap_rw("/init", &addr, &size);
+	for (int i = 0; i < size; ++i) {
+		if (memcmp(addr + i, SPLIT_PLAT_CIL, sizeof(SPLIT_PLAT_CIL) - 1) == 0) {
+			memcpy(addr + i + sizeof(SPLIT_PLAT_CIL) - 4, "xxx", 3);
+			break;
+		}
+	}
+	munmap(addr, size);
+
+	full_read("/init.rc", &addr, &size);
+	patch_init_rc(&addr, &size);
+	int fd = creat("/init.rc", 0750);
+	write(fd, addr, size);
+	close(fd);
+	free(addr);
+}
+
+static int strend(const char *s1, const char *s2) {
+	size_t l1 = strlen(s1);
+	size_t l2 = strlen(s2);
+	return strcmp(s1 + l1 - l2, s2);
+}
+
+static int compile_cil() {
+	DIR *dir;
+	struct dirent *entry;
+	char path[128];
+
+	struct cil_db *db = NULL;
+	sepol_policydb_t *pdb = NULL;
+	void *addr;
+	size_t size;
+
+	cil_db_init(&db);
+	cil_set_mls(db, 1);
+	cil_set_multiple_decls(db, 1);
+	cil_set_disable_neverallow(db, 1);
+	cil_set_target_platform(db, SEPOL_TARGET_SELINUX);
+	cil_set_policy_version(db, POLICYDB_VERSION_XPERMS_IOCTL);
+	cil_set_attrs_expand_generated(db, 0);
+
+	// plat
+	mmap_ro(SPLIT_PLAT_CIL, &addr, &size);
+	VLOG("cil_add[%s]\n", SPLIT_PLAT_CIL);
+	cil_add_file(db, SPLIT_PLAT_CIL, addr, size);
+	munmap(addr, size);
+
+	// mapping
+	char plat[10];
+	int fd = open(SPLIT_NONPLAT_VER, O_RDONLY | O_CLOEXEC);
+	plat[read(fd, plat, sizeof(plat)) - 1] = '\0';
+	snprintf(path, sizeof(path), SPLIT_PLAT_MAPPING, plat);
+	mmap_ro(path, &addr, &size);
+	VLOG("cil_add[%s]\n", path);
+	cil_add_file(db, path, addr, size);
+	munmap(addr, size);
+	close(fd);
+
+	// nonplat
+	dir = opendir(NONPLAT_POLICY_DIR);
+	while ((entry = readdir(dir))) {
+		if (strcmp(entry->d_name, ".") == 0 || strcmp(entry->d_name, "..") == 0)
+			continue;
+		if (strend(entry->d_name, ".cil") == 0) {
+			snprintf(path, sizeof(path), NONPLAT_POLICY_DIR "%s", entry->d_name);
+			mmap_ro(path, &addr, &size);
+			VLOG("cil_add[%s]\n", path);
+			cil_add_file(db, path, addr, size);
+			munmap(addr, size);
+		}
+	}
+	closedir(dir);
+
+	cil_compile(db);
+	cil_build_policydb(db, &pdb);
+	cil_db_destroy(&db);
+
+	policydb = &pdb->p;
+
+	return 0;
+}
+
+static int verify_precompiled() {
+	DIR *dir;
+	struct dirent *entry;
+	int fd;
+	char sys_sha[70], ven_sha[70];
+
+	// init the strings with different value
+	sys_sha[0] = 0;
+	ven_sha[0] = 1;
+
+	dir = opendir(NONPLAT_POLICY_DIR);
+	while ((entry = readdir(dir))) {
+		if (strcmp(entry->d_name, ".") == 0 || strcmp(entry->d_name, "..") == 0)
+			continue;
+		if (strend(entry->d_name, ".sha256") == 0) {
+			fd = openat(dirfd(dir), entry->d_name, O_RDONLY | O_CLOEXEC);
+			ven_sha[read(fd, ven_sha, sizeof(ven_sha)) - 1] = '\0';
+			close(fd);
+			break;
+		}
+	}
+	closedir(dir);
+	dir = opendir(PLAT_POLICY_DIR);
+	while ((entry = readdir(dir))) {
+		if (strcmp(entry->d_name, ".") == 0 || strcmp(entry->d_name, "..") == 0)
+			continue;
+		if (strend(entry->d_name, ".sha256") == 0) {
+			fd = openat(dirfd(dir), entry->d_name, O_RDONLY | O_CLOEXEC);
+			sys_sha[read(fd, sys_sha, sizeof(sys_sha)) - 1] = '\0';
+			close(fd);
+			break;
+		}
+	}
+	closedir(dir);
+	VLOG("sys_sha[%s]\nven_sha[%s]\n", sys_sha, ven_sha);
+	return strcmp(sys_sha, ven_sha) == 0;
+}
+
+static int patch_sepolicy() {
+	if (access("/sepolicy", R_OK) == 0)
+		load_policydb("/sepolicy");
+	else if (access(SPLIT_PRECOMPILE, R_OK) == 0 && verify_precompiled())
+		load_policydb(SPLIT_PRECOMPILE);
+	else if (access(SPLIT_PLAT_CIL, R_OK) == 0)
+		compile_cil();
+	else
+		return 1;
+
+	sepol_magisk_rules();
+	dump_policydb("/sepolicy");
+
+	// Remove the stupid debug sepolicy and use our own
+	if (access("/sepolicy_debug", F_OK) == 0) {
+		unlink("/sepolicy_debug");
+		link("/sepolicy", "/sepolicy_debug");
+	}
+
+	return 0;
+}
+
+#define BUFSIZE (1 << 20)
+
+static int unxz(const void *buf, size_t size, int fd) {
+	lzma_stream strm = LZMA_STREAM_INIT;
+	if (lzma_auto_decoder(&strm, UINT64_MAX, 0) != LZMA_OK)
+		return 1;
+	lzma_ret ret;
+	void *out = malloc(BUFSIZE);
+	strm.next_in = buf;
+	strm.avail_in = size;
+	do {
+		strm.next_out = out;
+		strm.avail_out = BUFSIZE;
+		ret = lzma_code(&strm, LZMA_RUN);
+		write(fd, out, BUFSIZE - strm.avail_out);
+	} while (strm.avail_out == 0 && ret == LZMA_OK);
+
+	free(out);
+	lzma_end(&strm);
+
+	if (ret != LZMA_OK && ret != LZMA_STREAM_END)
+		return 1;
+	return 0;
+}
+
+static int dump_magisk(const char *path, mode_t mode) {
+	unlink(path);
+	int fd = creat(path, mode);
+	int ret = unxz(magisk_dump, sizeof(magisk_dump), fd);
+	close(fd);
+	return ret;
+}
+
+static int dump_magiskrc(const char *path, mode_t mode) {
+	int fd = creat(path, mode);
+	write(fd, magiskrc, sizeof(magiskrc));
+	close(fd);
+	return 0;
+}
+
+static void patch_socket_name(const char *path) {
+	void *buf;
+	size_t size;
+	mmap_rw(path, &buf, &size);
+	if (SOCKET_OFF < 0) {
+		for (int i = 0; i < size; ++i) {
+			if (memcmp(buf + i, socket_name, sizeof(SOCKET_NAME)) == 0) {
+				SOCKET_OFF = i;
+				break;
+			}
+		}
+	}
+	gen_rand_str(RAND_SOCKET_NAME, sizeof(SOCKET_NAME));
+	memcpy(buf + SOCKET_OFF, RAND_SOCKET_NAME, sizeof(SOCKET_NAME));
+	munmap(buf, size);
+}
+
+static void magisk_init_daemon() {
+	setsid();
+
+	// Full patch
+	sepol_allow("su", ALL, ALL, ALL);
+
+	// Wait till init cold boot done
+	while (access("/dev/.coldboot_done", F_OK))
+		usleep(1);
+
+	int null = open("/dev/null", O_RDWR | O_CLOEXEC);
+	dup3(null, STDIN_FILENO, O_CLOEXEC);
+	dup3(null, STDOUT_FILENO, O_CLOEXEC);
+	dup3(null, STDERR_FILENO, O_CLOEXEC);
+	if (null > STDERR_FILENO)
+		close(null);
+
+	// Transit our context to su (mimic setcon)
+	int fd, crap;
+	fd = open("/proc/self/attr/current", O_WRONLY);
+	write(fd, "u:r:su:s0", 9);
+	close(fd);
+
+	// Dump full patch to kernel
+	dump_policydb(SELINUX_LOAD);
+	close(creat(PATCHDONE, 0));
+	destroy_policydb();
+
+	// Keep Magisk daemon always alive
+	while (1) {
+		struct sockaddr_un sun;
+		fd = setup_socket(&sun);
+		memcpy(sun.sun_path + 1, RAND_SOCKET_NAME, sizeof(SOCKET_NAME));
+		while (connect(fd, (struct sockaddr*) &sun, sizeof(sun)))
+			usleep(10000); /* Wait 10 ms after each try */
+
+		/* Should hold forever */
+		read(fd, &crap, sizeof(crap));
+
+		/* If things went here, it means the other side of the socket is closed
+		 * We restart the daemon again */
+		close(fd);
+		if (fork_dont_care() == 0) {
+			execv("/sbin/magisk", (char *[]) { "magisk", "--daemon", NULL } );
+			exit(1);
+		}
+	}
+}
+
+int main(int argc, char *argv[]) {
+	umask(0);
+
+	for (int i = 0; init_applet[i]; ++i) {
+		if (strcmp(basename(argv[0]), init_applet[i]) == 0)
+			return (*init_applet_main[i])(argc, argv);
+	}
+
+	if (argc > 1 && strcmp(argv[1], "-x") == 0) {
+		if (strcmp(argv[2], "magisk") == 0)
+			return dump_magisk(argv[3], 0755);
+		else if (strcmp(argv[2], "magiskrc") == 0)
+			return dump_magiskrc(argv[3], 0755);
+	}
+
+	// Prevent file descriptor confusion
+	mknod("/null", S_IFCHR | 0666, makedev(1, 3));
+	int null = open("/null", O_RDWR | O_CLOEXEC);
+	unlink("/null");
+	dup3(null, STDIN_FILENO, O_CLOEXEC);
+	dup3(null, STDOUT_FILENO, O_CLOEXEC);
+	dup3(null, STDERR_FILENO, O_CLOEXEC);
+	if (null > STDERR_FILENO)
+		close(null);
+
+	// Extract and link files
+	mkdir("/overlay", 0000);
+	dump_magiskrc("/overlay/init.magisk.rc", 0750);
+	mkdir("/overlay/sbin", 0755);
+	dump_magisk("/overlay/sbin/magisk", 0755);
+	patch_socket_name("/overlay/sbin/magisk");
+	mkdir("/overlay/root", 0755);
+	link("/init", "/overlay/root/magiskinit");
+
+	struct cmdline cmd;
+	parse_cmdline(&cmd);
+
+	/* ***********
+	 * Initialize
+	 * ***********/
+
+	int root = open("/", O_RDONLY | O_CLOEXEC);
+
+	if (cmd.skip_initramfs) {
+		// Clear rootfs
+		excl_list = (char *[]) { "overlay", ".backup", NULL };
+		frm_rf(root);
+	} else if (access("/ramdisk.cpio.xz", R_OK) == 0) {
+		// High compression mode
+		void *addr;
+		size_t size;
+		mmap_ro("/ramdisk.cpio.xz", &addr, &size);
+		int fd = creat("/ramdisk.cpio", 0);
+		unxz(addr, size, fd);
+		munmap(addr, size);
+		close(fd);
+		struct vector v;
+		vec_init(&v);
+		parse_cpio(&v, "/ramdisk.cpio");
+		excl_list = (char *[]) { "overlay", ".backup", NULL };
+		frm_rf(root);
+		chdir("/");
+		cpio_extract_all(&v);
+		cpio_vec_destroy(&v);
+	} else {
+		// Revert original init binary
+		unlink("/init");
+		link("/.backup/init", "/init");
+	}
+
+	/* ************
+	 * Early Mount
+	 * ************/
+
+	// If skip_initramfs or using split policies, we need early mount
+	if (cmd.skip_initramfs || access("/sepolicy", R_OK) != 0) {
+		char partname[32];
+		struct device dev;
+
+		// Mount sysfs
+		mkdir("/sys", 0755);
+		xmount("sysfs", "/sys", "sysfs", 0, NULL);
+
+		// Mount system
+		snprintf(partname, sizeof(partname), "system%s", cmd.slot);
+		setup_block(&dev, partname);
+		if (cmd.skip_initramfs) {
+			mkdir("/system_root", 0755);
+			xmount(dev.path, "/system_root", "ext4", MS_RDONLY, NULL);
+			int system_root = open("/system_root", O_RDONLY | O_CLOEXEC);
+
+			// Clone rootfs except /system
+			excl_list = (char *[]) { "system", NULL };
+			clone_dir(system_root, root);
+			close(system_root);
+
+			mkdir("/system", 0755);
+			xmount("/system_root/system", "/system", NULL, MS_BIND, NULL);
+		} else {
+			xmount(dev.path, "/system", "ext4", MS_RDONLY, NULL);
+		}
+
+		// Mount vendor
+		snprintf(partname, sizeof(partname), "vendor%s", cmd.slot);
+		if (setup_block(&dev, partname) == 0)
+			xmount(dev.path, "/vendor", "ext4", MS_RDONLY, NULL);
+	}
+
+	/* *************
+	 * Patch rootfs
+	 * *************/
+
+	// Only patch rootfs if not intended to run in recovery
+	if (access("/etc/recovery.fstab", F_OK) != 0) {
+		int overlay = open("/overlay", O_RDONLY | O_CLOEXEC);
+		mv_dir(overlay, root);
+		close(overlay);
+		rmdir("/overlay");
+
+		patch_ramdisk();
+		patch_sepolicy();
+
+		close(STDIN_FILENO);
+		close(STDOUT_FILENO);
+		close(STDERR_FILENO);
+
+		if (fork_dont_care() == 0) {
+			strcpy(argv[0], "magiskinit");
+			close(root);
+			magisk_init_daemon();
+		}
+	}
+
+	// Clean up
+	close(root);
+	if (!cmd.skip_initramfs)
+		umount("/system");
+	umount("/vendor");
+
+	// Finally, give control back!
+	execv("/init", argv);
+}

native/jni/core/socket.c

@@ -0,0 +1,155 @@
+/* socket.c - All socket related operations
+ */
+
+#include <fcntl.h>
+
+#include "daemon.h"
+#include "logging.h"
+#include "utils.h"
+#include "magisk.h"
+
+char socket_name[] = SOCKET_NAME;
+
+/* Setup the address and return socket fd */
+int setup_socket(struct sockaddr_un *sun) {
+	int fd = xsocket(AF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0);
+	memset(sun, 0, sizeof(*sun));
+	sun->sun_family = AF_LOCAL;
+	sun->sun_path[0] = '\0';
+	memcpy(sun->sun_path + 1, socket_name, sizeof(SOCKET_NAME));
+	return fd;
+}
+
+
+/*
+ * Receive a file descriptor from a Unix socket.
+ * Contributed by @mkasick
+ *
+ * Returns the file descriptor on success, or -1 if a file
+ * descriptor was not actually included in the message
+ *
+ * On error the function terminates by calling exit(-1)
+ */
+int recv_fd(int sockfd) {
+	// Need to receive data from the message, otherwise don't care about it.
+	char iovbuf;
+
+	struct iovec iov = {
+		.iov_base = &iovbuf,
+		.iov_len  = 1,
+	};
+
+	char cmsgbuf[CMSG_SPACE(sizeof(int))];
+
+	struct msghdr msg = {
+		.msg_iov        = &iov,
+		.msg_iovlen     = 1,
+		.msg_control    = cmsgbuf,
+		.msg_controllen = sizeof(cmsgbuf),
+	};
+
+	xrecvmsg(sockfd, &msg, MSG_WAITALL);
+
+	// Was a control message actually sent?
+	switch (msg.msg_controllen) {
+	case 0:
+		// No, so the file descriptor was closed and won't be used.
+		return -1;
+	case sizeof(cmsgbuf):
+		// Yes, grab the file descriptor from it.
+		break;
+	default:
+		goto error;
+	}
+
+	struct cmsghdr *cmsg = CMSG_FIRSTHDR(&msg);
+
+	if (cmsg             == NULL                  ||
+		cmsg->cmsg_len   != CMSG_LEN(sizeof(int)) ||
+		cmsg->cmsg_level != SOL_SOCKET            ||
+		cmsg->cmsg_type  != SCM_RIGHTS) {
+error:
+		LOGE("unable to read fd");
+		exit(-1);
+	}
+
+	return *(int *)CMSG_DATA(cmsg);
+}
+
+/*
+ * Send a file descriptor through a Unix socket.
+ * Contributed by @mkasick
+ *
+ * On error the function terminates by calling exit(-1)
+ *
+ * fd may be -1, in which case the dummy data is sent,
+ * but no control message with the FD is sent.
+ */
+void send_fd(int sockfd, int fd) {
+	// Need to send some data in the message, this will do.
+	struct iovec iov = {
+		.iov_base = "",
+		.iov_len  = 1,
+	};
+
+	struct msghdr msg = {
+		.msg_iov        = &iov,
+		.msg_iovlen     = 1,
+	};
+
+	char cmsgbuf[CMSG_SPACE(sizeof(int))];
+
+	if (fd != -1) {
+		// Is the file descriptor actually open?
+		if (fcntl(fd, F_GETFD) == -1) {
+			if (errno != EBADF) {
+				PLOGE("unable to send fd");
+			}
+			// It's closed, don't send a control message or sendmsg will EBADF.
+		} else {
+			// It's open, send the file descriptor in a control message.
+			msg.msg_control    = cmsgbuf;
+			msg.msg_controllen = sizeof(cmsgbuf);
+
+			struct cmsghdr *cmsg = CMSG_FIRSTHDR(&msg);
+
+			cmsg->cmsg_len   = CMSG_LEN(sizeof(int));
+			cmsg->cmsg_level = SOL_SOCKET;
+			cmsg->cmsg_type  = SCM_RIGHTS;
+
+			*(int *)CMSG_DATA(cmsg) = fd;
+		}
+	}
+
+	xsendmsg(sockfd, &msg, 0);
+}
+
+int read_int(int fd) {
+	int val;
+	xxread(fd, &val, sizeof(int));
+	return val;
+}
+
+void write_int(int fd, int val) {
+	if (fd < 0) return;
+	xwrite(fd, &val, sizeof(int));
+}
+
+char* read_string(int fd) {
+	int len = read_int(fd);
+	if (len > PATH_MAX || len < 0) {
+		LOGE("invalid string length %d", len);
+		exit(1);
+	}
+	char* val = xmalloc(sizeof(char) * (len + 1));
+	xxread(fd, val, len);
+	val[len] = '\0';
+	return val;
+}
+
+void write_string(int fd, const char* val) {
+	if (fd < 0) return;
+	int len = strlen(val);
+	write_int(fd, len);
+	xwrite(fd, val, len);
+}

native/jni/external/Android.mk

@@ -0,0 +1,172 @@
+LOCAL_PATH:= $(call my-dir)
+
+# libsqlite.so (stub)
+include $(CLEAR_VARS)
+LOCAL_MODULE:= libsqlite
+LOCAL_C_INCLUDES := $(EXT_PATH)/include
+LOCAL_SRC_FILES := stubs/sqlite3_stub.c
+include $(BUILD_SHARED_LIBRARY)
+
+# libselinux.so (stub)
+include $(CLEAR_VARS)
+LOCAL_MODULE:= libselinux
+LOCAL_C_INCLUDES := $(LIBSELINUX)
+LOCAL_SRC_FILES := stubs/selinux_stub.c
+include $(BUILD_SHARED_LIBRARY)
+
+# libmincrypt.a
+include $(CLEAR_VARS)
+LOCAL_MODULE:= libmincrypt
+LOCAL_C_INCLUDES := $(EXT_PATH)/include
+LOCAL_SRC_FILES := \
+	mincrypt/dsa_sig.c \
+	mincrypt/p256.c \
+	mincrypt/p256_ec.c \
+	mincrypt/p256_ecdsa.c \
+	mincrypt/rsa.c \
+	mincrypt/sha.c \
+	mincrypt/sha256.c
+include $(BUILD_STATIC_LIBRARY)
+
+# libfdt.a
+include $(CLEAR_VARS)
+LOCAL_MODULE:= libfdt
+LOCAL_C_INCLUDES := $(LIBFDT)
+LOCAL_SRC_FILES := \
+	dtc/libfdt/fdt.c \
+	dtc/libfdt/fdt_addresses.c \
+	dtc/libfdt/fdt_empty_tree.c \
+	dtc/libfdt/fdt_overlay.c \
+	dtc/libfdt/fdt_ro.c \
+	dtc/libfdt/fdt_rw.c \
+	dtc/libfdt/fdt_strerror.c \
+	dtc/libfdt/fdt_sw.c \
+	dtc/libfdt/fdt_wip.c
+include $(BUILD_STATIC_LIBRARY)
+
+# liblz4.a
+include $(CLEAR_VARS)
+LOCAL_MODULE := liblz4
+LOCAL_C_INCLUDES += $(LIBLZ4)
+LOCAL_SRC_FILES := \
+	lz4/lib/lz4.c \
+	lz4/lib/lz4frame.c \
+	lz4/lib/lz4hc.c \
+	lz4/lib/xxhash.c
+include $(BUILD_STATIC_LIBRARY)
+
+# libbz2.a
+include $(CLEAR_VARS)
+LOCAL_MODULE := libbz2
+LOCAL_C_INCLUDES += $(LIBBZ2)
+LOCAL_SRC_FILES := \
+	bzip2/blocksort.c  \
+	bzip2/huffman.c    \
+	bzip2/crctable.c   \
+	bzip2/randtable.c  \
+	bzip2/compress.c   \
+	bzip2/decompress.c \
+	bzip2/bzlib.c
+include $(BUILD_STATIC_LIBRARY)
+
+# liblzma.a
+include $(CLEAR_VARS)
+LOCAL_MODULE := liblzma
+LOCAL_C_INCLUDES += \
+	$(EXT_PATH)/include/xz_config \
+	$(EXT_PATH)/xz/src/common \
+	$(EXT_PATH)/xz/src/liblzma/api \
+	$(EXT_PATH)/xz/src/liblzma/check \
+	$(EXT_PATH)/xz/src/liblzma/common \
+	$(EXT_PATH)/xz/src/liblzma/delta \
+	$(EXT_PATH)/xz/src/liblzma/lz \
+	$(EXT_PATH)/xz/src/liblzma/lzma \
+	$(EXT_PATH)/xz/src/liblzma/rangecoder \
+	$(EXT_PATH)/xz/src/liblzma/simple \
+	$(EXT_PATH)/xz/src/liblzma
+LOCAL_SRC_FILES := \
+	xz/src/common/tuklib_cpucores.c \
+	xz/src/common/tuklib_exit.c \
+	xz/src/common/tuklib_mbstr_fw.c \
+	xz/src/common/tuklib_mbstr_width.c \
+	xz/src/common/tuklib_open_stdxxx.c \
+	xz/src/common/tuklib_physmem.c \
+	xz/src/common/tuklib_progname.c \
+	xz/src/liblzma/check/check.c \
+	xz/src/liblzma/check/crc32_fast.c \
+	xz/src/liblzma/check/crc32_table.c \
+	xz/src/liblzma/check/crc64_fast.c \
+	xz/src/liblzma/check/crc64_table.c \
+	xz/src/liblzma/check/sha256.c \
+	xz/src/liblzma/common/alone_decoder.c \
+	xz/src/liblzma/common/alone_encoder.c \
+	xz/src/liblzma/common/auto_decoder.c \
+	xz/src/liblzma/common/block_buffer_decoder.c \
+	xz/src/liblzma/common/block_buffer_encoder.c \
+	xz/src/liblzma/common/block_decoder.c \
+	xz/src/liblzma/common/block_encoder.c \
+	xz/src/liblzma/common/block_header_decoder.c \
+	xz/src/liblzma/common/block_header_encoder.c \
+	xz/src/liblzma/common/block_util.c \
+	xz/src/liblzma/common/common.c \
+	xz/src/liblzma/common/easy_buffer_encoder.c \
+	xz/src/liblzma/common/easy_decoder_memusage.c \
+	xz/src/liblzma/common/easy_encoder.c \
+	xz/src/liblzma/common/easy_encoder_memusage.c \
+	xz/src/liblzma/common/easy_preset.c \
+	xz/src/liblzma/common/filter_buffer_decoder.c \
+	xz/src/liblzma/common/filter_buffer_encoder.c \
+	xz/src/liblzma/common/filter_common.c \
+	xz/src/liblzma/common/filter_decoder.c \
+	xz/src/liblzma/common/filter_encoder.c \
+	xz/src/liblzma/common/filter_flags_decoder.c \
+	xz/src/liblzma/common/filter_flags_encoder.c \
+	xz/src/liblzma/common/hardware_cputhreads.c \
+	xz/src/liblzma/common/hardware_physmem.c \
+	xz/src/liblzma/common/index.c \
+	xz/src/liblzma/common/index_decoder.c \
+	xz/src/liblzma/common/index_encoder.c \
+	xz/src/liblzma/common/index_hash.c \
+	xz/src/liblzma/common/outqueue.c \
+	xz/src/liblzma/common/stream_buffer_decoder.c \
+	xz/src/liblzma/common/stream_buffer_encoder.c \
+	xz/src/liblzma/common/stream_decoder.c \
+	xz/src/liblzma/common/stream_encoder.c \
+	xz/src/liblzma/common/stream_encoder_mt.c \
+	xz/src/liblzma/common/stream_flags_common.c \
+	xz/src/liblzma/common/stream_flags_decoder.c \
+	xz/src/liblzma/common/stream_flags_encoder.c \
+	xz/src/liblzma/common/vli_decoder.c \
+	xz/src/liblzma/common/vli_encoder.c \
+	xz/src/liblzma/common/vli_size.c \
+	xz/src/liblzma/delta/delta_common.c \
+	xz/src/liblzma/delta/delta_decoder.c \
+	xz/src/liblzma/delta/delta_encoder.c \
+	xz/src/liblzma/lz/lz_decoder.c \
+	xz/src/liblzma/lz/lz_encoder.c \
+	xz/src/liblzma/lz/lz_encoder_mf.c \
+	xz/src/liblzma/lzma/fastpos_table.c \
+	xz/src/liblzma/lzma/fastpos_tablegen.c \
+	xz/src/liblzma/lzma/lzma2_decoder.c \
+	xz/src/liblzma/lzma/lzma2_encoder.c \
+	xz/src/liblzma/lzma/lzma_decoder.c \
+	xz/src/liblzma/lzma/lzma_encoder.c \
+	xz/src/liblzma/lzma/lzma_encoder_optimum_fast.c \
+	xz/src/liblzma/lzma/lzma_encoder_optimum_normal.c \
+	xz/src/liblzma/lzma/lzma_encoder_presets.c \
+	xz/src/liblzma/rangecoder/price_table.c \
+	xz/src/liblzma/rangecoder/price_tablegen.c \
+	xz/src/liblzma/simple/arm.c \
+	xz/src/liblzma/simple/armthumb.c \
+	xz/src/liblzma/simple/ia64.c \
+	xz/src/liblzma/simple/powerpc.c \
+	xz/src/liblzma/simple/simple_coder.c \
+	xz/src/liblzma/simple/simple_decoder.c \
+	xz/src/liblzma/simple/simple_encoder.c \
+	xz/src/liblzma/simple/sparc.c \
+	xz/src/liblzma/simple/x86.c
+LOCAL_CFLAGS += -DHAVE_CONFIG_H -std=c99
+include $(BUILD_STATIC_LIBRARY)
+
+# libsepol.a
+include $(SE_PATH)/libsepol/Android.mk

native/jni/external/include/mincrypt/dsa_sig.h

@@ -0,0 +1,43 @@
+/*
+ * Copyright 2013 The Android Open Source Project
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of Google Inc. nor the names of its contributors may
+ *       be used to endorse or promote products derived from this software
+ *       without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Google Inc. ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL Google Inc. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef SYSTEM_CORE_INCLUDE_MINCRYPT_DSA_SIG_H_
+#define SYSTEM_CORE_INCLUDE_MINCRYPT_DSA_SIG_H_
+
+#include "mincrypt/p256.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// Returns 0 if input sig is not a valid ASN.1 sequence
+int dsa_sig_unpack(unsigned char* sig, int sig_len, p256_int* r_int, p256_int* s_int);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* SYSTEM_CORE_INCLUDE_MINCRYPT_DSA_SIG_H_ */

native/jni/external/include/mincrypt/hash-internal.h

@@ -0,0 +1,63 @@
+/*
+ * Copyright 2007 The Android Open Source Project
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of Google Inc. nor the names of its contributors may
+ *       be used to endorse or promote products derived from this software
+ *       without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Google Inc. ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL Google Inc. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef SYSTEM_CORE_INCLUDE_MINCRYPT_HASH_INTERNAL_H_
+#define SYSTEM_CORE_INCLUDE_MINCRYPT_HASH_INTERNAL_H_
+
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif  // __cplusplus
+
+struct HASH_CTX;  // forward decl
+
+typedef struct HASH_VTAB {
+  void (* const init)(struct HASH_CTX*);
+  void (* const update)(struct HASH_CTX*, const void*, int);
+  const uint8_t* (* const final)(struct HASH_CTX*);
+  const uint8_t* (* const hash)(const void*, int, uint8_t*);
+  int size;
+} HASH_VTAB;
+
+typedef struct HASH_CTX {
+  const HASH_VTAB * f;
+  uint64_t count;
+  uint8_t buf[64];
+  uint32_t state[8];  // upto SHA2
+} HASH_CTX;
+
+#define HASH_init(ctx) (ctx)->f->init(ctx)
+#define HASH_update(ctx, data, len) (ctx)->f->update(ctx, data, len)
+#define HASH_final(ctx) (ctx)->f->final(ctx)
+#define HASH_hash(data, len, digest) (ctx)->f->hash(data, len, digest)
+#define HASH_size(ctx) (ctx)->f->size
+
+#ifdef __cplusplus
+}
+#endif  // __cplusplus
+
+#endif  // SYSTEM_CORE_INCLUDE_MINCRYPT_HASH_INTERNAL_H_

native/jni/external/include/mincrypt/p256.h

@@ -0,0 +1,162 @@
+/*
+ * Copyright 2013 The Android Open Source Project
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of Google Inc. nor the names of its contributors may
+ *       be used to endorse or promote products derived from this software
+ *       without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Google Inc. ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL Google Inc. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef SYSTEM_CORE_INCLUDE_MINCRYPT_LITE_P256_H_
+#define SYSTEM_CORE_INCLUDE_MINCRYPT_LITE_P256_H_
+
+// Collection of routines manipulating 256 bit unsigned integers.
+// Just enough to implement ecdsa-p256 and related algorithms.
+
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define P256_BITSPERDIGIT 32
+#define P256_NDIGITS 8
+#define P256_NBYTES 32
+
+typedef int p256_err;
+typedef uint32_t p256_digit;
+typedef int32_t p256_sdigit;
+typedef uint64_t p256_ddigit;
+typedef int64_t p256_sddigit;
+
+// Defining p256_int as struct to leverage struct assigment.
+typedef struct {
+  p256_digit a[P256_NDIGITS];
+} p256_int;
+
+extern const p256_int SECP256r1_n;  // Curve order
+extern const p256_int SECP256r1_p;  // Curve prime
+extern const p256_int SECP256r1_b;  // Curve param
+
+// Initialize a p256_int to zero.
+void p256_init(p256_int* a);
+
+// Clear a p256_int to zero.
+void p256_clear(p256_int* a);
+
+// Return bit. Index 0 is least significant.
+int p256_get_bit(const p256_int* a, int index);
+
+// b := a % MOD
+void p256_mod(
+    const p256_int* MOD,
+    const p256_int* a,
+    p256_int* b);
+
+// c := a * (top_b | b) % MOD
+void p256_modmul(
+    const p256_int* MOD,
+    const p256_int* a,
+    const p256_digit top_b,
+    const p256_int* b,
+    p256_int* c);
+
+// b := 1 / a % MOD
+// MOD best be SECP256r1_n
+void p256_modinv(
+    const p256_int* MOD,
+    const p256_int* a,
+    p256_int* b);
+
+// b := 1 / a % MOD
+// MOD best be SECP256r1_n
+// Faster than p256_modinv()
+void p256_modinv_vartime(
+    const p256_int* MOD,
+    const p256_int* a,
+    p256_int* b);
+
+// b := a << (n % P256_BITSPERDIGIT)
+// Returns the bits shifted out of most significant digit.
+p256_digit p256_shl(const p256_int* a, int n, p256_int* b);
+
+// b := a >> (n % P256_BITSPERDIGIT)
+void p256_shr(const p256_int* a, int n, p256_int* b);
+
+int p256_is_zero(const p256_int* a);
+int p256_is_odd(const p256_int* a);
+int p256_is_even(const p256_int* a);
+
+// Returns -1, 0 or 1.
+int p256_cmp(const p256_int* a, const p256_int *b);
+
+// c: = a - b
+// Returns -1 on borrow.
+int p256_sub(const p256_int* a, const p256_int* b, p256_int* c);
+
+// c := a + b
+// Returns 1 on carry.
+int p256_add(const p256_int* a, const p256_int* b, p256_int* c);
+
+// c := a + (single digit)b
+// Returns carry 1 on carry.
+int p256_add_d(const p256_int* a, p256_digit b, p256_int* c);
+
+// ec routines.
+
+// {out_x,out_y} := nG
+void p256_base_point_mul(const p256_int *n,
+                         p256_int *out_x,
+                         p256_int *out_y);
+
+// {out_x,out_y} := n{in_x,in_y}
+void p256_point_mul(const p256_int *n,
+                    const p256_int *in_x,
+                    const p256_int *in_y,
+                    p256_int *out_x,
+                    p256_int *out_y);
+
+// {out_x,out_y} := n1G + n2{in_x,in_y}
+void p256_points_mul_vartime(
+    const p256_int *n1, const p256_int *n2,
+    const p256_int *in_x, const p256_int *in_y,
+    p256_int *out_x, p256_int *out_y);
+
+// Return whether point {x,y} is on curve.
+int p256_is_valid_point(const p256_int* x, const p256_int* y);
+
+// Outputs big-endian binary form. No leading zero skips.
+void p256_to_bin(const p256_int* src, uint8_t dst[P256_NBYTES]);
+
+// Reads from big-endian binary form,
+// thus pre-pad with leading zeros if short.
+void p256_from_bin(const uint8_t src[P256_NBYTES], p256_int* dst);
+
+#define P256_DIGITS(x) ((x)->a)
+#define P256_DIGIT(x,y) ((x)->a[y])
+
+#define P256_ZERO {{0}}
+#define P256_ONE {{1}}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  // SYSTEM_CORE_INCLUDE_MINCRYPT_LITE_P256_H_

native/jni/external/include/mincrypt/p256_ecdsa.h

@@ -0,0 +1,53 @@
+/*
+ * Copyright 2013 The Android Open Source Project
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of Google Inc. nor the names of its contributors may
+ *       be used to endorse or promote products derived from this software
+ *       without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Google Inc. ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL Google Inc. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef SYSTEM_CORE_INCLUDE_MINCRYPT_P256_ECDSA_H_
+#define SYSTEM_CORE_INCLUDE_MINCRYPT_P256_ECDSA_H_
+
+// Using current directory as relative include path here since
+// this code typically gets lifted into a variety of build systems
+// and directory structures.
+#include "p256.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// Returns 0 if {r,s} is not a signature on message for
+// public key {key_x,key_y}.
+//
+// Note: message is a p256_int.
+// Convert from a binary string using p256_from_bin().
+int p256_ecdsa_verify(const p256_int* key_x,
+                      const p256_int* key_y,
+                      const p256_int* message,
+                      const p256_int* r, const p256_int* s);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  // SYSTEM_CORE_INCLUDE_MINCRYPT_P256_ECDSA_H_

native/jni/external/include/mincrypt/rsa.h

@@ -0,0 +1,58 @@
+/* rsa.h
+**
+** Copyright 2008, The Android Open Source Project
+**
+** Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are met:
+**     * Redistributions of source code must retain the above copyright
+**       notice, this list of conditions and the following disclaimer.
+**     * Redistributions in binary form must reproduce the above copyright
+**       notice, this list of conditions and the following disclaimer in the
+**       documentation and/or other materials provided with the distribution.
+**     * Neither the name of Google Inc. nor the names of its contributors may
+**       be used to endorse or promote products derived from this software
+**       without specific prior written permission.
+**
+** THIS SOFTWARE IS PROVIDED BY Google Inc. ``AS IS'' AND ANY EXPRESS OR
+** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+** MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+** EVENT SHALL Google Inc. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+** PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+** OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+** WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+** OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+** ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#ifndef SYSTEM_CORE_INCLUDE_MINCRYPT_RSA_H_
+#define SYSTEM_CORE_INCLUDE_MINCRYPT_RSA_H_
+
+#include <inttypes.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define RSANUMBYTES 256           /* 2048 bit key length */
+#define RSANUMWORDS (RSANUMBYTES / sizeof(uint32_t))
+
+typedef struct RSAPublicKey {
+    int len;                  /* Length of n[] in number of uint32_t */
+    uint32_t n0inv;           /* -1 / n[0] mod 2^32 */
+    uint32_t n[RSANUMWORDS];  /* modulus as little endian array */
+    uint32_t rr[RSANUMWORDS]; /* R^2 as little endian array */
+    int exponent;             /* 3 or 65537 */
+} RSAPublicKey;
+
+int RSA_verify(const RSAPublicKey *key,
+               const uint8_t* signature,
+               const int len,
+               const uint8_t* hash,
+               const int hash_len);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // SYSTEM_CORE_INCLUDE_MINCRYPT_RSA_H_

native/jni/external/include/mincrypt/sha.h

@@ -0,0 +1,52 @@
+/*
+ * Copyright 2005 The Android Open Source Project
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of Google Inc. nor the names of its contributors may
+ *       be used to endorse or promote products derived from this software
+ *       without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Google Inc. ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL Google Inc. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef SYSTEM_CORE_INCLUDE_MINCRYPT_SHA1_H_
+#define SYSTEM_CORE_INCLUDE_MINCRYPT_SHA1_H_
+
+#include <stdint.h>
+#include "hash-internal.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif // __cplusplus
+
+typedef HASH_CTX SHA_CTX;
+
+void SHA_init(SHA_CTX* ctx);
+void SHA_update(SHA_CTX* ctx, const void* data, int len);
+const uint8_t* SHA_final(SHA_CTX* ctx);
+
+// Convenience method. Returns digest address.
+// NOTE: *digest needs to hold SHA_DIGEST_SIZE bytes.
+const uint8_t* SHA_hash(const void* data, int len, uint8_t* digest);
+
+#define SHA_DIGEST_SIZE 20
+
+#ifdef __cplusplus
+}
+#endif // __cplusplus
+
+#endif  // SYSTEM_CORE_INCLUDE_MINCRYPT_SHA1_H_

native/jni/external/include/mincrypt/sha256.h

@@ -0,0 +1,52 @@
+/*
+ * Copyright 2011 The Android Open Source Project
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of Google Inc. nor the names of its contributors may
+ *       be used to endorse or promote products derived from this software
+ *       without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Google Inc. ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL Google Inc. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef SYSTEM_CORE_INCLUDE_MINCRYPT_SHA256_H_
+#define SYSTEM_CORE_INCLUDE_MINCRYPT_SHA256_H_
+
+#include <stdint.h>
+#include "hash-internal.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif // __cplusplus
+
+typedef HASH_CTX SHA256_CTX;
+
+void SHA256_init(SHA256_CTX* ctx);
+void SHA256_update(SHA256_CTX* ctx, const void* data, int len);
+const uint8_t* SHA256_final(SHA256_CTX* ctx);
+
+// Convenience method. Returns digest address.
+const uint8_t* SHA256_hash(const void* data, int len, uint8_t* digest);
+
+#define SHA256_DIGEST_SIZE 32
+
+#ifdef __cplusplus
+}
+#endif // __cplusplus
+
+#endif  // SYSTEM_CORE_INCLUDE_MINCRYPT_SHA256_H_

native/jni/external/include/sha1.h

@@ -0,0 +1,44 @@
+#ifndef SHA1_H
+#define SHA1_H
+
+/*
+   SHA-1 in C
+   By Steve Reid <steve@edmweb.com>
+   100% Public Domain
+ */
+
+#include "stdint.h"
+
+typedef struct
+{
+    uint32_t state[5];
+    uint32_t count[2];
+    unsigned char buffer[64];
+} SHA1_CTX;
+
+void SHA1Transform(
+    uint32_t state[5],
+    const unsigned char buffer[64]
+    );
+
+void SHA1Init(
+    SHA1_CTX * context
+    );
+
+void SHA1Update(
+    SHA1_CTX * context,
+    const unsigned char *data,
+    uint32_t len
+    );
+
+void SHA1Final(
+    unsigned char digest[20],
+    SHA1_CTX * context
+    );
+
+void SHA1(
+    char *hash_out,
+    const char *str,
+    int len);
+
+#endif /* SHA1_H */

native/jni/external/include/xz_config/config.h

@@ -0,0 +1,498 @@
+/* config.h.  Generated from config.h.in by configure.  */
+/* config.h.in.  Generated from configure.ac by autoheader.  */
+
+/* Define if building universal (internal helper macro) */
+/* #undef AC_APPLE_UNIVERSAL_BUILD */
+
+/* How many MiB of RAM to assume if the real amount cannot be determined. */
+#define ASSUME_RAM 128
+
+/* Define to 1 if translation of program messages to the user's native
+   language is requested. */
+/* #undef ENABLE_NLS */
+
+/* Define to 1 if bswap_16 is available. */
+#define HAVE_BSWAP_16 1
+
+/* Define to 1 if bswap_32 is available. */
+#define HAVE_BSWAP_32 1
+
+/* Define to 1 if bswap_64 is available. */
+#define HAVE_BSWAP_64 1
+
+/* Define to 1 if you have the <byteswap.h> header file. */
+#define HAVE_BYTESWAP_H 1
+
+/* Define to 1 if Capsicum is available. */
+/* #undef HAVE_CAPSICUM */
+
+/* Define to 1 if the system has the type `CC_SHA256_CTX'. */
+/* #undef HAVE_CC_SHA256_CTX */
+
+/* Define to 1 if you have the `CC_SHA256_Init' function. */
+/* #undef HAVE_CC_SHA256_INIT */
+
+/* Define to 1 if you have the MacOS X function CFLocaleCopyCurrent in the
+   CoreFoundation framework. */
+/* #undef HAVE_CFLOCALECOPYCURRENT */
+
+/* Define to 1 if you have the MacOS X function CFPreferencesCopyAppValue in
+   the CoreFoundation framework. */
+/* #undef HAVE_CFPREFERENCESCOPYAPPVALUE */
+
+/* Define to 1 if crc32 integrity check is enabled. */
+#define HAVE_CHECK_CRC32 1
+
+/* Define to 1 if crc64 integrity check is enabled. */
+#define HAVE_CHECK_CRC64 1
+
+/* Define to 1 if sha256 integrity check is enabled. */
+#define HAVE_CHECK_SHA256 1
+
+/* Define to 1 if you have the `clock_gettime' function. */
+#define HAVE_CLOCK_GETTIME 1
+
+/* Define to 1 if you have the <CommonCrypto/CommonDigest.h> header file. */
+/* #undef HAVE_COMMONCRYPTO_COMMONDIGEST_H */
+
+/* Define if the GNU dcgettext() function is already present or preinstalled.
+   */
+/* #undef HAVE_DCGETTEXT */
+
+/* Define to 1 if you have the declaration of `CLOCK_MONOTONIC', and to 0 if
+   you don't. */
+#define HAVE_DECL_CLOCK_MONOTONIC 1
+
+/* Define to 1 if you have the declaration of `program_invocation_name', and
+   to 0 if you don't. */
+#define HAVE_DECL_PROGRAM_INVOCATION_NAME 0
+
+/* Define to 1 if any of HAVE_DECODER_foo have been defined. */
+#define HAVE_DECODERS 1
+
+/* Define to 1 if arm decoder is enabled. */
+#define HAVE_DECODER_ARM 1
+
+/* Define to 1 if armthumb decoder is enabled. */
+#define HAVE_DECODER_ARMTHUMB 1
+
+/* Define to 1 if delta decoder is enabled. */
+#define HAVE_DECODER_DELTA 1
+
+/* Define to 1 if ia64 decoder is enabled. */
+#define HAVE_DECODER_IA64 1
+
+/* Define to 1 if lzma1 decoder is enabled. */
+#define HAVE_DECODER_LZMA1 1
+
+/* Define to 1 if lzma2 decoder is enabled. */
+#define HAVE_DECODER_LZMA2 1
+
+/* Define to 1 if powerpc decoder is enabled. */
+#define HAVE_DECODER_POWERPC 1
+
+/* Define to 1 if sparc decoder is enabled. */
+#define HAVE_DECODER_SPARC 1
+
+/* Define to 1 if x86 decoder is enabled. */
+#define HAVE_DECODER_X86 1
+
+/* Define to 1 if you have the <dlfcn.h> header file. */
+#define HAVE_DLFCN_H 1
+
+/* Define to 1 if any of HAVE_ENCODER_foo have been defined. */
+#define HAVE_ENCODERS 1
+
+/* Define to 1 if arm encoder is enabled. */
+#define HAVE_ENCODER_ARM 1
+
+/* Define to 1 if armthumb encoder is enabled. */
+#define HAVE_ENCODER_ARMTHUMB 1
+
+/* Define to 1 if delta encoder is enabled. */
+#define HAVE_ENCODER_DELTA 1
+
+/* Define to 1 if ia64 encoder is enabled. */
+#define HAVE_ENCODER_IA64 1
+
+/* Define to 1 if lzma1 encoder is enabled. */
+#define HAVE_ENCODER_LZMA1 1
+
+/* Define to 1 if lzma2 encoder is enabled. */
+#define HAVE_ENCODER_LZMA2 1
+
+/* Define to 1 if powerpc encoder is enabled. */
+#define HAVE_ENCODER_POWERPC 1
+
+/* Define to 1 if sparc encoder is enabled. */
+#define HAVE_ENCODER_SPARC 1
+
+/* Define to 1 if x86 encoder is enabled. */
+#define HAVE_ENCODER_X86 1
+
+/* Define to 1 if you have the <fcntl.h> header file. */
+#define HAVE_FCNTL_H 1
+
+/* Define to 1 if you have the `futimens' function. */
+#define HAVE_FUTIMENS 1
+
+/* Define to 1 if you have the `futimes' function. */
+/* #undef HAVE_FUTIMES */
+
+/* Define to 1 if you have the `futimesat' function. */
+/* #undef HAVE_FUTIMESAT */
+
+/* Define to 1 if you have the <getopt.h> header file. */
+#define HAVE_GETOPT_H 1
+
+/* Define to 1 if you have the `getopt_long' function. */
+#define HAVE_GETOPT_LONG 1
+
+/* Define if the GNU gettext() function is already present or preinstalled. */
+/* #undef HAVE_GETTEXT */
+
+/* Define if you have the iconv() function and it works. */
+/* #undef HAVE_ICONV */
+
+/* Define to 1 if you have the <immintrin.h> header file. */
+/* #undef HAVE_IMMINTRIN_H */
+
+/* Define to 1 if you have the <inttypes.h> header file. */
+#define HAVE_INTTYPES_H 1
+
+/* Define to 1 if you have the <limits.h> header file. */
+#define HAVE_LIMITS_H 1
+
+/* Define to 1 if mbrtowc and mbstate_t are properly declared. */
+#define HAVE_MBRTOWC 1
+
+/* Define to 1 if you have the <memory.h> header file. */
+#define HAVE_MEMORY_H 1
+
+/* Define to 1 to enable bt2 match finder. */
+#define HAVE_MF_BT2 1
+
+/* Define to 1 to enable bt3 match finder. */
+#define HAVE_MF_BT3 1
+
+/* Define to 1 to enable bt4 match finder. */
+#define HAVE_MF_BT4 1
+
+/* Define to 1 to enable hc3 match finder. */
+#define HAVE_MF_HC3 1
+
+/* Define to 1 to enable hc4 match finder. */
+#define HAVE_MF_HC4 1
+
+/* Define to 1 if you have the <minix/sha2.h> header file. */
+/* #undef HAVE_MINIX_SHA2_H */
+
+/* Define to 1 if getopt.h declares extern int optreset. */
+#define HAVE_OPTRESET 1
+
+/* Define to 1 if you have the `posix_fadvise' function. */
+#define HAVE_POSIX_FADVISE 1
+
+/* Define to 1 if you have the `pthread_condattr_setclock' function. */
+#define HAVE_PTHREAD_CONDATTR_SETCLOCK 1
+
+/* Have PTHREAD_PRIO_INHERIT. */
+/* #undef HAVE_PTHREAD_PRIO_INHERIT */
+
+/* Define to 1 if you have the `SHA256Init' function. */
+/* #undef HAVE_SHA256INIT */
+
+/* Define to 1 if the system has the type `SHA256_CTX'. */
+/* #undef HAVE_SHA256_CTX */
+
+/* Define to 1 if you have the <sha256.h> header file. */
+/* #undef HAVE_SHA256_H */
+
+/* Define to 1 if you have the `SHA256_Init' function. */
+/* #undef HAVE_SHA256_INIT */
+
+/* Define to 1 if the system has the type `SHA2_CTX'. */
+/* #undef HAVE_SHA2_CTX */
+
+/* Define to 1 if you have the <sha2.h> header file. */
+/* #undef HAVE_SHA2_H */
+
+/* Define to 1 if optimizing for size. */
+/* #undef HAVE_SMALL */
+
+/* Define to 1 if stdbool.h conforms to C99. */
+#define HAVE_STDBOOL_H 1
+
+/* Define to 1 if you have the <stdint.h> header file. */
+#define HAVE_STDINT_H 1
+
+/* Define to 1 if you have the <stdlib.h> header file. */
+#define HAVE_STDLIB_H 1
+
+/* Define to 1 if you have the <strings.h> header file. */
+#define HAVE_STRINGS_H 1
+
+/* Define to 1 if you have the <string.h> header file. */
+#define HAVE_STRING_H 1
+
+/* Define to 1 if `st_atimensec' is a member of `struct stat'. */
+#define HAVE_STRUCT_STAT_ST_ATIMENSEC 1
+
+/* Define to 1 if `st_atimespec.tv_nsec' is a member of `struct stat'. */
+/* #undef HAVE_STRUCT_STAT_ST_ATIMESPEC_TV_NSEC */
+
+/* Define to 1 if `st_atim.st__tim.tv_nsec' is a member of `struct stat'. */
+/* #undef HAVE_STRUCT_STAT_ST_ATIM_ST__TIM_TV_NSEC */
+
+/* Define to 1 if `st_atim.tv_nsec' is a member of `struct stat'. */
+/* #undef HAVE_STRUCT_STAT_ST_ATIM_TV_NSEC */
+
+/* Define to 1 if `st_uatime' is a member of `struct stat'. */
+/* #undef HAVE_STRUCT_STAT_ST_UATIME */
+
+/* Define to 1 if you have the <sys/byteorder.h> header file. */
+/* #undef HAVE_SYS_BYTEORDER_H */
+
+/* Define to 1 if you have the <sys/capsicum.h> header file. */
+/* #undef HAVE_SYS_CAPSICUM_H */
+
+/* Define to 1 if you have the <sys/endian.h> header file. */
+/* #undef HAVE_SYS_ENDIAN_H */
+
+/* Define to 1 if you have the <sys/param.h> header file. */
+#define HAVE_SYS_PARAM_H 1
+
+/* Define to 1 if you have the <sys/stat.h> header file. */
+#define HAVE_SYS_STAT_H 1
+
+/* Define to 1 if you have the <sys/time.h> header file. */
+#define HAVE_SYS_TIME_H 1
+
+/* Define to 1 if you have the <sys/types.h> header file. */
+#define HAVE_SYS_TYPES_H 1
+
+/* Define to 1 if the system has the type `uintptr_t'. */
+#define HAVE_UINTPTR_T 1
+
+/* Define to 1 if you have the <unistd.h> header file. */
+#define HAVE_UNISTD_H 1
+
+/* Define to 1 if you have the `utime' function. */
+/* #undef HAVE_UTIME */
+
+/* Define to 1 if you have the `utimes' function. */
+/* #undef HAVE_UTIMES */
+
+/* Define to 1 or 0, depending whether the compiler supports simple visibility
+   declarations. */
+#define HAVE_VISIBILITY 1
+
+/* Define to 1 if you have the `wcwidth' function. */
+#define HAVE_WCWIDTH 1
+
+/* Define to 1 if the system has the type `_Bool'. */
+#define HAVE__BOOL 1
+
+/* Define to 1 if _mm_movemask_epi8 is available. */
+/* #undef HAVE__MM_MOVEMASK_EPI8 */
+
+/* Define to the sub-directory where libtool stores uninstalled libraries. */
+#define LT_OBJDIR ".libs/"
+
+/* Define to 1 when using POSIX threads (pthreads). */
+#define MYTHREAD_POSIX 1
+
+/* Define to 1 when using Windows Vista compatible threads. This uses features
+   that are not available on Windows XP. */
+/* #undef MYTHREAD_VISTA */
+
+/* Define to 1 when using Windows 95 (and thus XP) compatible threads. This
+   avoids use of features that were added in Windows Vista. */
+/* #undef MYTHREAD_WIN95 */
+
+/* Define to 1 to disable debugging code. */
+#define NDEBUG 1
+
+/* Name of package */
+#define PACKAGE "xz"
+
+/* Define to the address where bug reports for this package should be sent. */
+#define PACKAGE_BUGREPORT "lasse.collin@tukaani.org"
+
+/* Define to the full name of this package. */
+#define PACKAGE_NAME "XZ Utils"
+
+/* Define to the full name and version of this package. */
+#define PACKAGE_STRING "XZ Utils 5.3.0alpha"
+
+/* Define to the one symbol short name of this package. */
+#define PACKAGE_TARNAME "xz"
+
+/* Define to the home page for this package. */
+#define PACKAGE_URL "http://tukaani.org/xz/"
+
+/* Define to the version of this package. */
+#define PACKAGE_VERSION "5.3.0alpha"
+
+/* Define to necessary symbol if this constant uses a non-standard name on
+   your system. */
+/* #undef PTHREAD_CREATE_JOINABLE */
+
+/* The size of `size_t', as computed by sizeof. */
+#define SIZEOF_SIZE_T 4
+
+/* Define to 1 if you have the ANSI C header files. */
+#define STDC_HEADERS 1
+
+/* Define to 1 if the number of available CPU cores can be detected with
+   cpuset(2). */
+/* #undef TUKLIB_CPUCORES_CPUSET */
+
+/* Define to 1 if the number of available CPU cores can be detected with
+   pstat_getdynamic(). */
+/* #undef TUKLIB_CPUCORES_PSTAT_GETDYNAMIC */
+
+/* Define to 1 if the number of available CPU cores can be detected with
+   sysconf(_SC_NPROCESSORS_ONLN) or sysconf(_SC_NPROC_ONLN). */
+#define TUKLIB_CPUCORES_SYSCONF 1
+
+/* Define to 1 if the number of available CPU cores can be detected with
+   sysctl(). */
+/* #undef TUKLIB_CPUCORES_SYSCTL */
+
+/* Define to 1 if the system supports fast unaligned access to 16-bit and
+   32-bit integers. */
+/* #undef TUKLIB_FAST_UNALIGNED_ACCESS */
+
+/* Define to 1 if the amount of physical memory can be detected with
+   _system_configuration.physmem. */
+/* #undef TUKLIB_PHYSMEM_AIX */
+
+/* Define to 1 if the amount of physical memory can be detected with
+   getinvent_r(). */
+/* #undef TUKLIB_PHYSMEM_GETINVENT_R */
+
+/* Define to 1 if the amount of physical memory can be detected with
+   getsysinfo(). */
+/* #undef TUKLIB_PHYSMEM_GETSYSINFO */
+
+/* Define to 1 if the amount of physical memory can be detected with
+   pstat_getstatic(). */
+/* #undef TUKLIB_PHYSMEM_PSTAT_GETSTATIC */
+
+/* Define to 1 if the amount of physical memory can be detected with
+   sysconf(_SC_PAGESIZE) and sysconf(_SC_PHYS_PAGES). */
+#define TUKLIB_PHYSMEM_SYSCONF 1
+
+/* Define to 1 if the amount of physical memory can be detected with sysctl().
+   */
+/* #undef TUKLIB_PHYSMEM_SYSCTL */
+
+/* Define to 1 if the amount of physical memory can be detected with Linux
+   sysinfo(). */
+/* #undef TUKLIB_PHYSMEM_SYSINFO */
+
+/* Enable extensions on AIX 3, Interix.  */
+#ifndef _ALL_SOURCE
+# define _ALL_SOURCE 1
+#endif
+/* Enable GNU extensions on systems that have them.  */
+#ifndef _GNU_SOURCE
+# define _GNU_SOURCE 1
+#endif
+/* Enable threading extensions on Solaris.  */
+#ifndef _POSIX_PTHREAD_SEMANTICS
+# define _POSIX_PTHREAD_SEMANTICS 1
+#endif
+/* Enable extensions on HP NonStop.  */
+#ifndef _TANDEM_SOURCE
+# define _TANDEM_SOURCE 1
+#endif
+/* Enable general extensions on Solaris.  */
+#ifndef __EXTENSIONS__
+# define __EXTENSIONS__ 1
+#endif
+
+
+/* Version number of package */
+#define VERSION "5.3.0alpha"
+
+/* Define WORDS_BIGENDIAN to 1 if your processor stores words with the most
+   significant byte first (like Motorola and SPARC, unlike Intel). */
+#if defined AC_APPLE_UNIVERSAL_BUILD
+# if defined __BIG_ENDIAN__
+#  define WORDS_BIGENDIAN 1
+# endif
+#else
+# ifndef WORDS_BIGENDIAN
+/* #  undef WORDS_BIGENDIAN */
+# endif
+#endif
+
+/* Enable large inode numbers on Mac OS X 10.5.  */
+#ifndef _DARWIN_USE_64_BIT_INODE
+# define _DARWIN_USE_64_BIT_INODE 1
+#endif
+
+/* Number of bits in a file offset, on hosts where this is settable. */
+/* #undef _FILE_OFFSET_BITS */
+
+/* Define for large files, on AIX-style hosts. */
+/* #undef _LARGE_FILES */
+
+/* Define to 1 if on MINIX. */
+/* #undef _MINIX */
+
+/* Define to 2 if the system does not provide POSIX.1 features except with
+   this defined. */
+/* #undef _POSIX_1_SOURCE */
+
+/* Define to 1 if you need to in order for `stat' and other things to work. */
+/* #undef _POSIX_SOURCE */
+
+/* Define for Solaris 2.5.1 so the uint32_t typedef from <sys/synch.h>,
+   <pthread.h>, or <semaphore.h> is not used. If the typedef were allowed, the
+   #define below would cause a syntax error. */
+/* #undef _UINT32_T */
+
+/* Define for Solaris 2.5.1 so the uint64_t typedef from <sys/synch.h>,
+   <pthread.h>, or <semaphore.h> is not used. If the typedef were allowed, the
+   #define below would cause a syntax error. */
+/* #undef _UINT64_T */
+
+/* Define for Solaris 2.5.1 so the uint8_t typedef from <sys/synch.h>,
+   <pthread.h>, or <semaphore.h> is not used. If the typedef were allowed, the
+   #define below would cause a syntax error. */
+/* #undef _UINT8_T */
+
+/* Define to rpl_ if the getopt replacement functions and variables should be
+   used. */
+/* #undef __GETOPT_PREFIX */
+
+/* Define to the type of a signed integer type of width exactly 32 bits if
+   such a type exists and the standard includes do not define it. */
+/* #undef int32_t */
+
+/* Define to the type of a signed integer type of width exactly 64 bits if
+   such a type exists and the standard includes do not define it. */
+/* #undef int64_t */
+
+/* Define to the type of an unsigned integer type of width exactly 16 bits if
+   such a type exists and the standard includes do not define it. */
+/* #undef uint16_t */
+
+/* Define to the type of an unsigned integer type of width exactly 32 bits if
+   such a type exists and the standard includes do not define it. */
+/* #undef uint32_t */
+
+/* Define to the type of an unsigned integer type of width exactly 64 bits if
+   such a type exists and the standard includes do not define it. */
+/* #undef uint64_t */
+
+/* Define to the type of an unsigned integer type of width exactly 8 bits if
+   such a type exists and the standard includes do not define it. */
+/* #undef uint8_t */
+
+/* Define to the type of an unsigned integer type wide enough to hold a
+   pointer, if such a type exists, and if the system does not define it. */
+/* #undef uintptr_t */

native/jni/external/mincrypt/dsa_sig.c

@@ -0,0 +1,126 @@
+/*
+ * Copyright 2013 The Android Open Source Project
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of Google Inc. nor the names of its contributors may
+ *       be used to endorse or promote products derived from this software
+ *       without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Google Inc. ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL Google Inc. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <string.h>
+
+#include "mincrypt/dsa_sig.h"
+#include "mincrypt/p256.h"
+
+/**
+ * Trims off the leading zero bytes and copy it to a buffer aligning it to the end.
+ */
+static inline int trim_to_p256_bytes(unsigned char dst[P256_NBYTES], unsigned char *src,
+        int src_len) {
+    int dst_offset;
+    while (*src == '\0' && src_len > 0) {
+        src++;
+        src_len--;
+    }
+    if (src_len > P256_NBYTES || src_len < 1) {
+        return 0;
+    }
+    dst_offset = P256_NBYTES - src_len;
+    memset(dst, 0, dst_offset);
+    memcpy(dst + dst_offset, src, src_len);
+    return 1;
+}
+
+/**
+ * Unpacks the ASN.1 DSA signature sequence.
+ */
+int dsa_sig_unpack(unsigned char* sig, int sig_len, p256_int* r_int, p256_int* s_int) {
+    /*
+     * Structure is:
+     *   0x30 0xNN  SEQUENCE + s_length
+     *     0x02 0xNN  INTEGER + r_length
+     *       0xAA 0xBB ..   r_length bytes of "r" (offset 4)
+     *     0x02 0xNN  INTEGER + s_length
+     *       0xMM 0xNN ..   s_length bytes of "s" (offset 6 + r_len)
+     */
+    int seq_len;
+    unsigned char r_bytes[P256_NBYTES];
+    unsigned char s_bytes[P256_NBYTES];
+    int r_len;
+    int s_len;
+
+    memset(r_bytes, 0, sizeof(r_bytes));
+    memset(s_bytes, 0, sizeof(s_bytes));
+
+    /*
+     * Must have at least:
+     * 2 bytes sequence header and length
+     * 2 bytes R integer header and length
+     * 1 byte of R
+     * 2 bytes S integer header and length
+     * 1 byte of S
+     *
+     * 8 bytes total
+     */
+    if (sig_len < 8 || sig[0] != 0x30 || sig[2] != 0x02) {
+        return 0;
+    }
+
+    seq_len = sig[1];
+    if ((seq_len <= 0) || (seq_len + 2 != sig_len)) {
+        return 0;
+    }
+
+    r_len = sig[3];
+    /*
+     * Must have at least:
+     * 2 bytes for R header and length
+     * 2 bytes S integer header and length
+     * 1 byte of S
+     */
+    if ((r_len < 1) || (r_len > seq_len - 5) || (sig[4 + r_len] != 0x02)) {
+        return 0;
+    }
+    s_len = sig[5 + r_len];
+
+    /**
+     * Must have:
+     * 2 bytes for R header and length
+     * r_len bytes for R
+     * 2 bytes S integer header and length
+     */
+    if ((s_len < 1) || (s_len != seq_len - 4 - r_len)) {
+        return 0;
+    }
+
+    /*
+     * ASN.1 encoded integers are zero-padded for positive integers. Make sure we have
+     * a correctly-sized buffer and that the resulting integer isn't too large.
+     */
+    if (!trim_to_p256_bytes(r_bytes, &sig[4], r_len)
+            || !trim_to_p256_bytes(s_bytes, &sig[6 + r_len], s_len)) {
+        return 0;
+    }
+
+    p256_from_bin(r_bytes, r_int);
+    p256_from_bin(s_bytes, s_int);
+
+    return 1;
+}

native/jni/external/mincrypt/p256.c

@@ -0,0 +1,373 @@
+/*
+ * Copyright 2013 The Android Open Source Project
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of Google Inc. nor the names of its contributors may
+ *       be used to endorse or promote products derived from this software
+ *       without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Google Inc. ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL Google Inc. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+// This is an implementation of the P256 elliptic curve group. It's written to
+// be portable 32-bit, although it's still constant-time.
+//
+// WARNING: Implementing these functions in a constant-time manner is far from
+//          obvious. Be careful when touching this code.
+//
+// See http://www.imperialviolet.org/2010/12/04/ecc.html ([1]) for background.
+
+#include <assert.h>
+#include <stdint.h>
+#include <string.h>
+#include <stdio.h>
+
+#include "mincrypt/p256.h"
+
+const p256_int SECP256r1_n =  // curve order
+  {{0xfc632551, 0xf3b9cac2, 0xa7179e84, 0xbce6faad, -1, -1, 0, -1}};
+
+const p256_int SECP256r1_p =  // curve field size
+  {{-1, -1, -1, 0, 0, 0, 1, -1 }};
+
+const p256_int SECP256r1_b =  // curve b
+  {{0x27d2604b, 0x3bce3c3e, 0xcc53b0f6, 0x651d06b0,
+    0x769886bc, 0xb3ebbd55, 0xaa3a93e7, 0x5ac635d8}};
+
+void p256_init(p256_int* a) {
+  memset(a, 0, sizeof(*a));
+}
+
+void p256_clear(p256_int* a) { p256_init(a); }
+
+int p256_get_bit(const p256_int* scalar, int bit) {
+  return (P256_DIGIT(scalar, bit / P256_BITSPERDIGIT)
+              >> (bit & (P256_BITSPERDIGIT - 1))) & 1;
+}
+
+int p256_is_zero(const p256_int* a) {
+  int i, result = 0;
+  for (i = 0; i < P256_NDIGITS; ++i) result |= P256_DIGIT(a, i);
+  return !result;
+}
+
+// top, c[] += a[] * b
+// Returns new top
+static p256_digit mulAdd(const p256_int* a,
+                         p256_digit b,
+                         p256_digit top,
+                         p256_digit* c) {
+  int i;
+  p256_ddigit carry = 0;
+
+  for (i = 0; i < P256_NDIGITS; ++i) {
+    carry += *c;
+    carry += (p256_ddigit)P256_DIGIT(a, i) * b;
+    *c++ = (p256_digit)carry;
+    carry >>= P256_BITSPERDIGIT;
+  }
+  return top + (p256_digit)carry;
+}
+
+// top, c[] -= top_a, a[]
+static p256_digit subTop(p256_digit top_a,
+                         const p256_digit* a,
+                         p256_digit top_c,
+                         p256_digit* c) {
+  int i;
+  p256_sddigit borrow = 0;
+
+  for (i = 0; i < P256_NDIGITS; ++i) {
+    borrow += *c;
+    borrow -= *a++;
+    *c++ = (p256_digit)borrow;
+    borrow >>= P256_BITSPERDIGIT;
+  }
+  borrow += top_c;
+  borrow -= top_a;
+  top_c = (p256_digit)borrow;
+  assert((borrow >> P256_BITSPERDIGIT) == 0);
+  return top_c;
+}
+
+// top, c[] -= MOD[] & mask (0 or -1)
+// returns new top.
+static p256_digit subM(const p256_int* MOD,
+                       p256_digit top,
+                       p256_digit* c,
+                       p256_digit mask) {
+  int i;
+  p256_sddigit borrow = 0;
+  for (i = 0; i < P256_NDIGITS; ++i) {
+    borrow += *c;
+    borrow -= P256_DIGIT(MOD, i) & mask;
+    *c++ = (p256_digit)borrow;
+    borrow >>= P256_BITSPERDIGIT;
+  }
+  return top + (p256_digit)borrow;
+}
+
+// top, c[] += MOD[] & mask (0 or -1)
+// returns new top.
+static p256_digit addM(const p256_int* MOD,
+                       p256_digit top,
+                       p256_digit* c,
+                       p256_digit mask) {
+  int i;
+  p256_ddigit carry = 0;
+  for (i = 0; i < P256_NDIGITS; ++i) {
+    carry += *c;
+    carry += P256_DIGIT(MOD, i) & mask;
+    *c++ = (p256_digit)carry;
+    carry >>= P256_BITSPERDIGIT;
+  }
+  return top + (p256_digit)carry;
+}
+
+// c = a * b mod MOD. c can be a and/or b.
+void p256_modmul(const p256_int* MOD,
+                 const p256_int* a,
+                 const p256_digit top_b,
+                 const p256_int* b,
+                 p256_int* c) {
+  p256_digit tmp[P256_NDIGITS * 2 + 1] = { 0 };
+  p256_digit top = 0;
+  int i;
+
+  // Multiply/add into tmp.
+  for (i = 0; i < P256_NDIGITS; ++i) {
+    if (i) tmp[i + P256_NDIGITS - 1] = top;
+    top = mulAdd(a, P256_DIGIT(b, i), 0, tmp + i);
+  }
+
+  // Multiply/add top digit
+  tmp[i + P256_NDIGITS - 1] = top;
+  top = mulAdd(a, top_b, 0, tmp + i);
+
+  // Reduce tmp, digit by digit.
+  for (; i >= 0; --i) {
+    p256_digit reducer[P256_NDIGITS] = { 0 };
+    p256_digit top_reducer;
+
+    // top can be any value at this point.
+    // Guestimate reducer as top * MOD, since msw of MOD is -1.
+    top_reducer = mulAdd(MOD, top, 0, reducer);
+
+    // Subtract reducer from top | tmp.
+    top = subTop(top_reducer, reducer, top, tmp + i);
+
+    // top is now either 0 or 1. Make it 0, fixed-timing.
+    assert(top <= 1);
+
+    top = subM(MOD, top, tmp + i, ~(top - 1));
+
+    assert(top == 0);
+
+    // We have now reduced the top digit off tmp. Fetch new top digit.
+    top = tmp[i + P256_NDIGITS - 1];
+  }
+
+  // tmp might still be larger than MOD, yet same bit length.
+  // Make sure it is less, fixed-timing.
+  addM(MOD, 0, tmp, subM(MOD, 0, tmp, -1));
+
+  memcpy(c, tmp, P256_NBYTES);
+}
+int p256_is_odd(const p256_int* a) { return P256_DIGIT(a, 0) & 1; }
+int p256_is_even(const p256_int* a) { return !(P256_DIGIT(a, 0) & 1); }
+
+p256_digit p256_shl(const p256_int* a, int n, p256_int* b) {
+  int i;
+  p256_digit top = P256_DIGIT(a, P256_NDIGITS - 1);
+
+  n %= P256_BITSPERDIGIT;
+  for (i = P256_NDIGITS - 1; i > 0; --i) {
+    p256_digit accu = (P256_DIGIT(a, i) << n);
+    accu |= (P256_DIGIT(a, i - 1) >> (P256_BITSPERDIGIT - n));
+    P256_DIGIT(b, i) = accu;
+  }
+  P256_DIGIT(b, i) = (P256_DIGIT(a, i) << n);
+
+  top = (p256_digit)((((p256_ddigit)top) << n) >> P256_BITSPERDIGIT);
+
+  return top;
+}
+
+void p256_shr(const p256_int* a, int n, p256_int* b) {
+  int i;
+
+  n %= P256_BITSPERDIGIT;
+  for (i = 0; i < P256_NDIGITS - 1; ++i) {
+    p256_digit accu = (P256_DIGIT(a, i) >> n);
+    accu |= (P256_DIGIT(a, i + 1) << (P256_BITSPERDIGIT - n));
+    P256_DIGIT(b, i) = accu;
+  }
+  P256_DIGIT(b, i) = (P256_DIGIT(a, i) >> n);
+}
+
+static void p256_shr1(const p256_int* a, int highbit, p256_int* b) {
+  int i;
+
+  for (i = 0; i < P256_NDIGITS - 1; ++i) {
+    p256_digit accu = (P256_DIGIT(a, i) >> 1);
+    accu |= (P256_DIGIT(a, i + 1) << (P256_BITSPERDIGIT - 1));
+    P256_DIGIT(b, i) = accu;
+  }
+  P256_DIGIT(b, i) = (P256_DIGIT(a, i) >> 1) |
+      (highbit << (P256_BITSPERDIGIT - 1));
+}
+
+// Return -1, 0, 1 for a < b, a == b or a > b respectively.
+int p256_cmp(const p256_int* a, const p256_int* b) {
+  int i;
+  p256_sddigit borrow = 0;
+  p256_digit notzero = 0;
+
+  for (i = 0; i < P256_NDIGITS; ++i) {
+    borrow += (p256_sddigit)P256_DIGIT(a, i) - P256_DIGIT(b, i);
+    // Track whether any result digit is ever not zero.
+    // Relies on !!(non-zero) evaluating to 1, e.g., !!(-1) evaluating to 1.
+    notzero |= !!((p256_digit)borrow);
+    borrow >>= P256_BITSPERDIGIT;
+  }
+  return (int)borrow | notzero;
+}
+
+// c = a - b. Returns borrow: 0 or -1.
+int p256_sub(const p256_int* a, const p256_int* b, p256_int* c) {
+  int i;
+  p256_sddigit borrow = 0;
+
+  for (i = 0; i < P256_NDIGITS; ++i) {
+    borrow += (p256_sddigit)P256_DIGIT(a, i) - P256_DIGIT(b, i);
+    if (c) P256_DIGIT(c, i) = (p256_digit)borrow;
+    borrow >>= P256_BITSPERDIGIT;
+  }
+  return (int)borrow;
+}
+
+// c = a + b. Returns carry: 0 or 1.
+int p256_add(const p256_int* a, const p256_int* b, p256_int* c) {
+  int i;
+  p256_ddigit carry = 0;
+
+  for (i = 0; i < P256_NDIGITS; ++i) {
+    carry += (p256_ddigit)P256_DIGIT(a, i) + P256_DIGIT(b, i);
+    if (c) P256_DIGIT(c, i) = (p256_digit)carry;
+    carry >>= P256_BITSPERDIGIT;
+  }
+  return (int)carry;
+}
+
+// b = a + d. Returns carry, 0 or 1.
+int p256_add_d(const p256_int* a, p256_digit d, p256_int* b) {
+  int i;
+  p256_ddigit carry = d;
+
+  for (i = 0; i < P256_NDIGITS; ++i) {
+    carry += (p256_ddigit)P256_DIGIT(a, i);
+    if (b) P256_DIGIT(b, i) = (p256_digit)carry;
+    carry >>= P256_BITSPERDIGIT;
+  }
+  return (int)carry;
+}
+
+// b = 1/a mod MOD, binary euclid.
+void p256_modinv_vartime(const p256_int* MOD,
+                         const p256_int* a,
+                         p256_int* b) {
+  p256_int R = P256_ZERO;
+  p256_int S = P256_ONE;
+  p256_int U = *MOD;
+  p256_int V = *a;
+
+  for (;;) {
+    if (p256_is_even(&U)) {
+      p256_shr1(&U, 0, &U);
+      if (p256_is_even(&R)) {
+        p256_shr1(&R, 0, &R);
+      } else {
+        // R = (R+MOD)/2
+        p256_shr1(&R, p256_add(&R, MOD, &R), &R);
+      }
+    } else if (p256_is_even(&V)) {
+      p256_shr1(&V, 0, &V);
+      if (p256_is_even(&S)) {
+        p256_shr1(&S, 0, &S);
+      } else {
+        // S = (S+MOD)/2
+        p256_shr1(&S, p256_add(&S, MOD, &S) , &S);
+      }
+    } else {  // U,V both odd.
+      if (!p256_sub(&V, &U, NULL)) {
+        p256_sub(&V, &U, &V);
+        if (p256_sub(&S, &R, &S)) p256_add(&S, MOD, &S);
+        if (p256_is_zero(&V)) break;  // done.
+      } else {
+        p256_sub(&U, &V, &U);
+        if (p256_sub(&R, &S, &R)) p256_add(&R, MOD, &R);
+      }
+    }
+  }
+
+  p256_mod(MOD, &R, b);
+}
+
+void p256_mod(const p256_int* MOD,
+              const p256_int* in,
+              p256_int* out) {
+  if (out != in) *out = *in;
+  addM(MOD, 0, P256_DIGITS(out), subM(MOD, 0, P256_DIGITS(out), -1));
+}
+
+// Verify y^2 == x^3 - 3x + b mod p
+// and 0 < x < p and 0 < y < p
+int p256_is_valid_point(const p256_int* x, const p256_int* y) {
+  p256_int y2, x3;
+
+  if (p256_cmp(&SECP256r1_p, x) <= 0 ||
+      p256_cmp(&SECP256r1_p, y) <= 0 ||
+      p256_is_zero(x) ||
+      p256_is_zero(y)) return 0;
+
+  p256_modmul(&SECP256r1_p, y, 0, y, &y2);  // y^2
+
+  p256_modmul(&SECP256r1_p, x, 0, x, &x3);  // x^2
+  p256_modmul(&SECP256r1_p, x, 0, &x3, &x3);  // x^3
+  if (p256_sub(&x3, x, &x3)) p256_add(&x3, &SECP256r1_p, &x3);  // x^3 - x
+  if (p256_sub(&x3, x, &x3)) p256_add(&x3, &SECP256r1_p, &x3);  // x^3 - 2x
+  if (p256_sub(&x3, x, &x3)) p256_add(&x3, &SECP256r1_p, &x3);  // x^3 - 3x
+  if (p256_add(&x3, &SECP256r1_b, &x3))  // x^3 - 3x + b
+    p256_sub(&x3, &SECP256r1_p, &x3);
+
+  return p256_cmp(&y2, &x3) == 0;
+}
+
+void p256_from_bin(const uint8_t src[P256_NBYTES], p256_int* dst) {
+  int i;
+  const uint8_t* p = &src[0];
+
+  for (i = P256_NDIGITS - 1; i >= 0; --i) {
+    P256_DIGIT(dst, i) =
+        (p[0] << 24) |
+        (p[1] << 16) |
+        (p[2] << 8) |
+        p[3];
+    p += 4;
+  }
+}

native/jni/external/mincrypt/p256_ecdsa.c

@@ -0,0 +1,56 @@
+/*
+ * Copyright 2013 The Android Open Source Project
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of Google Inc. nor the names of its contributors may
+ *       be used to endorse or promote products derived from this software
+ *       without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Google Inc. ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL Google Inc. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <string.h>
+
+#include "mincrypt/p256_ecdsa.h"
+#include "mincrypt/p256.h"
+
+int p256_ecdsa_verify(const p256_int* key_x, const p256_int* key_y,
+                      const p256_int* message,
+                      const p256_int* r, const p256_int* s) {
+  p256_int u, v;
+
+  // Check public key.
+  if (!p256_is_valid_point(key_x, key_y)) return 0;
+
+  // Check r and s are != 0 % n.
+  p256_mod(&SECP256r1_n, r, &u);
+  p256_mod(&SECP256r1_n, s, &v);
+  if (p256_is_zero(&u) || p256_is_zero(&v)) return 0;
+
+  p256_modinv_vartime(&SECP256r1_n, s, &v);
+  p256_modmul(&SECP256r1_n, message, 0, &v, &u);  // message / s % n
+  p256_modmul(&SECP256r1_n, r, 0, &v, &v);  // r / s % n
+
+  p256_points_mul_vartime(&u, &v,
+                          key_x, key_y,
+                          &u, &v);
+
+  p256_mod(&SECP256r1_n, &u, &u);  // (x coord % p) % n
+  return p256_cmp(r, &u) == 0;
+}
+

native/jni/external/mincrypt/rsa.c

@@ -0,0 +1,308 @@
+/* rsa.c
+**
+** Copyright 2012, The Android Open Source Project
+**
+** Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are met:
+**     * Redistributions of source code must retain the above copyright
+**       notice, this list of conditions and the following disclaimer.
+**     * Redistributions in binary form must reproduce the above copyright
+**       notice, this list of conditions and the following disclaimer in the
+**       documentation and/or other materials provided with the distribution.
+**     * Neither the name of Google Inc. nor the names of its contributors may
+**       be used to endorse or promote products derived from this software
+**       without specific prior written permission.
+**
+** THIS SOFTWARE IS PROVIDED BY Google Inc. ``AS IS'' AND ANY EXPRESS OR
+** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+** MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+** EVENT SHALL Google Inc. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+** PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+** OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+** WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+** OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+** ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include "mincrypt/rsa.h"
+#include "mincrypt/sha.h"
+#include "mincrypt/sha256.h"
+
+// a[] -= mod
+static void subM(const RSAPublicKey* key,
+                 uint32_t* a) {
+    int64_t A = 0;
+    int i;
+    for (i = 0; i < key->len; ++i) {
+        A += (uint64_t)a[i] - key->n[i];
+        a[i] = (uint32_t)A;
+        A >>= 32;
+    }
+}
+
+// return a[] >= mod
+static int geM(const RSAPublicKey* key,
+               const uint32_t* a) {
+    int i;
+    for (i = key->len; i;) {
+        --i;
+        if (a[i] < key->n[i]) return 0;
+        if (a[i] > key->n[i]) return 1;
+    }
+    return 1;  // equal
+}
+
+// montgomery c[] += a * b[] / R % mod
+static void montMulAdd(const RSAPublicKey* key,
+                       uint32_t* c,
+                       const uint32_t a,
+                       const uint32_t* b) {
+    uint64_t A = (uint64_t)a * b[0] + c[0];
+    uint32_t d0 = (uint32_t)A * key->n0inv;
+    uint64_t B = (uint64_t)d0 * key->n[0] + (uint32_t)A;
+    int i;
+
+    for (i = 1; i < key->len; ++i) {
+        A = (A >> 32) + (uint64_t)a * b[i] + c[i];
+        B = (B >> 32) + (uint64_t)d0 * key->n[i] + (uint32_t)A;
+        c[i - 1] = (uint32_t)B;
+    }
+
+    A = (A >> 32) + (B >> 32);
+
+    c[i - 1] = (uint32_t)A;
+
+    if (A >> 32) {
+        subM(key, c);
+    }
+}
+
+// montgomery c[] = a[] * b[] / R % mod
+static void montMul(const RSAPublicKey* key,
+                    uint32_t* c,
+                    const uint32_t* a,
+                    const uint32_t* b) {
+    int i;
+    for (i = 0; i < key->len; ++i) {
+        c[i] = 0;
+    }
+    for (i = 0; i < key->len; ++i) {
+        montMulAdd(key, c, a[i], b);
+    }
+}
+
+// In-place public exponentiation.
+// Input and output big-endian byte array in inout.
+static void modpow(const RSAPublicKey* key,
+                   uint8_t* inout) {
+    uint32_t a[RSANUMWORDS];
+    uint32_t aR[RSANUMWORDS];
+    uint32_t aaR[RSANUMWORDS];
+    uint32_t* aaa = 0;
+    int i;
+
+    // Convert from big endian byte array to little endian word array.
+    for (i = 0; i < key->len; ++i) {
+        uint32_t tmp =
+            (inout[((key->len - 1 - i) * 4) + 0] << 24) |
+            (inout[((key->len - 1 - i) * 4) + 1] << 16) |
+            (inout[((key->len - 1 - i) * 4) + 2] << 8) |
+            (inout[((key->len - 1 - i) * 4) + 3] << 0);
+        a[i] = tmp;
+    }
+
+    if (key->exponent == 65537) {
+        aaa = aaR;  // Re-use location.
+        montMul(key, aR, a, key->rr);  // aR = a * RR / R mod M
+        for (i = 0; i < 16; i += 2) {
+            montMul(key, aaR, aR, aR);  // aaR = aR * aR / R mod M
+            montMul(key, aR, aaR, aaR);  // aR = aaR * aaR / R mod M
+        }
+        montMul(key, aaa, aR, a);  // aaa = aR * a / R mod M
+    } else if (key->exponent == 3) {
+        aaa = aR;  // Re-use location.
+        montMul(key, aR, a, key->rr);  /* aR = a * RR / R mod M   */
+        montMul(key, aaR, aR, aR);     /* aaR = aR * aR / R mod M */
+        montMul(key, aaa, aaR, a);     /* aaa = aaR * a / R mod M */
+    }
+
+    // Make sure aaa < mod; aaa is at most 1x mod too large.
+    if (geM(key, aaa)) {
+        subM(key, aaa);
+    }
+
+    // Convert to bigendian byte array
+    for (i = key->len - 1; i >= 0; --i) {
+        uint32_t tmp = aaa[i];
+        *inout++ = tmp >> 24;
+        *inout++ = tmp >> 16;
+        *inout++ = tmp >> 8;
+        *inout++ = tmp >> 0;
+    }
+}
+
+// Expected PKCS1.5 signature padding bytes, for a keytool RSA signature.
+// Has the 0-length optional parameter encoded in the ASN1 (as opposed to the
+// other flavor which omits the optional parameter entirely). This code does not
+// accept signatures without the optional parameter.
+
+/*
+static const uint8_t sha_padding[RSANUMBYTES] = {
+    0x00, 0x01, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0x00, 0x30, 0x21, 0x30,
+    0x09, 0x06, 0x05, 0x2b, 0x0e, 0x03, 0x02, 0x1a,
+    0x05, 0x00, 0x04, 0x14,
+
+    // 20 bytes of hash go here.
+    0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
+};
+*/
+
+// SHA-1 of PKCS1.5 signature sha_padding for 2048 bit, as above.
+// At the location of the bytes of the hash all 00 are hashed.
+static const uint8_t kExpectedPadShaRsa2048[SHA_DIGEST_SIZE] = {
+    0xdc, 0xbd, 0xbe, 0x42, 0xd5, 0xf5, 0xa7, 0x2e,
+    0x6e, 0xfc, 0xf5, 0x5d, 0xaf, 0x9d, 0xea, 0x68,
+    0x7c, 0xfb, 0xf1, 0x67
+};
+
+/*
+static const uint8_t sha256_padding[RSANUMBYTES] = {
+    0x00, 0x01, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0x00, 0x30, 0x31, 0x30,
+    0x0d, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65,
+    0x03, 0x04, 0x02, 0x01, 0x05, 0x00, 0x04, 0x20,
+
+    // 32 bytes of hash go here.
+    0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+    0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+};
+*/
+
+// SHA-256 of PKCS1.5 signature sha256_padding for 2048 bit, as above.
+// At the location of the bytes of the hash all 00 are hashed.
+static const uint8_t kExpectedPadSha256Rsa2048[SHA256_DIGEST_SIZE] = {
+    0xab, 0x28, 0x8d, 0x8a, 0xd7, 0xd9, 0x59, 0x92,
+    0xba, 0xcc, 0xf8, 0x67, 0x20, 0xe1, 0x15, 0x2e,
+    0x39, 0x8d, 0x80, 0x36, 0xd6, 0x6f, 0xf0, 0xfd,
+    0x90, 0xe8, 0x7d, 0x8b, 0xe1, 0x7c, 0x87, 0x59,
+};
+
+// Verify a 2048-bit RSA PKCS1.5 signature against an expected hash.
+// Both e=3 and e=65537 are supported.  hash_len may be
+// SHA_DIGEST_SIZE (== 20) to indicate a SHA-1 hash, or
+// SHA256_DIGEST_SIZE (== 32) to indicate a SHA-256 hash.  No other
+// values are supported.
+//
+// Returns 1 on successful verification, 0 on failure.
+int RSA_verify(const RSAPublicKey *key,
+               const uint8_t *signature,
+               const int len,
+               const uint8_t *hash,
+               const int hash_len) {
+    uint8_t buf[RSANUMBYTES];
+    int i;
+    const uint8_t* padding_hash;
+
+    if (key->len != RSANUMWORDS) {
+        return 0;  // Wrong key passed in.
+    }
+
+    if (len != sizeof(buf)) {
+        return 0;  // Wrong input length.
+    }
+
+    if (hash_len != SHA_DIGEST_SIZE &&
+        hash_len != SHA256_DIGEST_SIZE) {
+        return 0;  // Unsupported hash.
+    }
+
+    if (key->exponent != 3 && key->exponent != 65537) {
+        return 0;  // Unsupported exponent.
+    }
+
+    for (i = 0; i < len; ++i) {  // Copy input to local workspace.
+        buf[i] = signature[i];
+    }
+
+    modpow(key, buf);  // In-place exponentiation.
+
+    // Xor sha portion, so it all becomes 00 iff equal.
+    for (i = len - hash_len; i < len; ++i) {
+        buf[i] ^= *hash++;
+    }
+
+    // Hash resulting buf, in-place.
+    switch (hash_len) {
+        case SHA_DIGEST_SIZE:
+            padding_hash = kExpectedPadShaRsa2048;
+            SHA_hash(buf, len, buf);
+            break;
+        case SHA256_DIGEST_SIZE:
+            padding_hash = kExpectedPadSha256Rsa2048;
+            SHA256_hash(buf, len, buf);
+            break;
+        default:
+            return 0;
+    }
+
+    // Compare against expected hash value.
+    for (i = 0; i < hash_len; ++i) {
+        if (buf[i] != padding_hash[i]) {
+            return 0;
+        }
+    }
+
+    return 1;  // All checked out OK.
+}

native/jni/external/mincrypt/sha.c

@@ -0,0 +1,155 @@
+/* sha.c
+**
+** Copyright 2013, The Android Open Source Project
+**
+** Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are met:
+**     * Redistributions of source code must retain the above copyright
+**       notice, this list of conditions and the following disclaimer.
+**     * Redistributions in binary form must reproduce the above copyright
+**       notice, this list of conditions and the following disclaimer in the
+**       documentation and/or other materials provided with the distribution.
+**     * Neither the name of Google Inc. nor the names of its contributors may
+**       be used to endorse or promote products derived from this software
+**       without specific prior written permission.
+**
+** THIS SOFTWARE IS PROVIDED BY Google Inc. ``AS IS'' AND ANY EXPRESS OR
+** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+** MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+** EVENT SHALL Google Inc. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+** PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+** OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+** WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+** OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+** ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+// Optimized for minimal code size.
+
+#include "mincrypt/sha.h"
+
+#include <stdio.h>
+#include <string.h>
+#include <stdint.h>
+
+#define rol(bits, value) (((value) << (bits)) | ((value) >> (32 - (bits))))
+
+static void SHA1_Transform(SHA_CTX* ctx) {
+    uint32_t W[80];
+    uint32_t A, B, C, D, E;
+    uint8_t* p = ctx->buf;
+    int t;
+
+    for(t = 0; t < 16; ++t) {
+        uint32_t tmp =  *p++ << 24;
+        tmp |= *p++ << 16;
+        tmp |= *p++ << 8;
+        tmp |= *p++;
+        W[t] = tmp;
+    }
+
+    for(; t < 80; t++) {
+        W[t] = rol(1,W[t-3] ^ W[t-8] ^ W[t-14] ^ W[t-16]);
+    }
+
+    A = ctx->state[0];
+    B = ctx->state[1];
+    C = ctx->state[2];
+    D = ctx->state[3];
+    E = ctx->state[4];
+
+    for(t = 0; t < 80; t++) {
+        uint32_t tmp = rol(5,A) + E + W[t];
+
+        if (t < 20)
+            tmp += (D^(B&(C^D))) + 0x5A827999;
+        else if ( t < 40)
+            tmp += (B^C^D) + 0x6ED9EBA1;
+        else if ( t < 60)
+            tmp += ((B&C)|(D&(B|C))) + 0x8F1BBCDC;
+        else
+            tmp += (B^C^D) + 0xCA62C1D6;
+
+        E = D;
+        D = C;
+        C = rol(30,B);
+        B = A;
+        A = tmp;
+    }
+
+    ctx->state[0] += A;
+    ctx->state[1] += B;
+    ctx->state[2] += C;
+    ctx->state[3] += D;
+    ctx->state[4] += E;
+}
+
+static const HASH_VTAB SHA_VTAB = {
+    SHA_init,
+    SHA_update,
+    SHA_final,
+    SHA_hash,
+    SHA_DIGEST_SIZE
+};
+
+void SHA_init(SHA_CTX* ctx) {
+    ctx->f = &SHA_VTAB;
+    ctx->state[0] = 0x67452301;
+    ctx->state[1] = 0xEFCDAB89;
+    ctx->state[2] = 0x98BADCFE;
+    ctx->state[3] = 0x10325476;
+    ctx->state[4] = 0xC3D2E1F0;
+    ctx->count = 0;
+}
+
+
+void SHA_update(SHA_CTX* ctx, const void* data, int len) {
+    int i = (int) (ctx->count & 63);
+    const uint8_t* p = (const uint8_t*)data;
+
+    ctx->count += len;
+
+    while (len--) {
+        ctx->buf[i++] = *p++;
+        if (i == 64) {
+            SHA1_Transform(ctx);
+            i = 0;
+        }
+    }
+}
+
+
+const uint8_t* SHA_final(SHA_CTX* ctx) {
+    uint8_t *p = ctx->buf;
+    uint64_t cnt = ctx->count * 8;
+    int i;
+
+    SHA_update(ctx, (uint8_t*)"\x80", 1);
+    while ((ctx->count & 63) != 56) {
+        SHA_update(ctx, (uint8_t*)"\0", 1);
+    }
+    for (i = 0; i < 8; ++i) {
+        uint8_t tmp = (uint8_t) (cnt >> ((7 - i) * 8));
+        SHA_update(ctx, &tmp, 1);
+    }
+
+    for (i = 0; i < 5; i++) {
+        uint32_t tmp = ctx->state[i];
+        *p++ = tmp >> 24;
+        *p++ = tmp >> 16;
+        *p++ = tmp >> 8;
+        *p++ = tmp >> 0;
+    }
+
+    return ctx->buf;
+}
+
+/* Convenience function */
+const uint8_t* SHA_hash(const void* data, int len, uint8_t* digest) {
+    SHA_CTX ctx;
+    SHA_init(&ctx);
+    SHA_update(&ctx, data, len);
+    memcpy(digest, SHA_final(&ctx), SHA_DIGEST_SIZE);
+    return digest;
+}

native/jni/external/mincrypt/sha256.c

@@ -0,0 +1,184 @@
+/* sha256.c
+**
+** Copyright 2013, The Android Open Source Project
+**
+** Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are met:
+**     * Redistributions of source code must retain the above copyright
+**       notice, this list of conditions and the following disclaimer.
+**     * Redistributions in binary form must reproduce the above copyright
+**       notice, this list of conditions and the following disclaimer in the
+**       documentation and/or other materials provided with the distribution.
+**     * Neither the name of Google Inc. nor the names of its contributors may
+**       be used to endorse or promote products derived from this software
+**       without specific prior written permission.
+**
+** THIS SOFTWARE IS PROVIDED BY Google Inc. ``AS IS'' AND ANY EXPRESS OR
+** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+** MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+** EVENT SHALL Google Inc. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+** PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+** OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+** WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+** OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+** ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+// Optimized for minimal code size.
+
+#include "mincrypt/sha256.h"
+
+#include <stdio.h>
+#include <string.h>
+#include <stdint.h>
+
+#define ror(value, bits) (((value) >> (bits)) | ((value) << (32 - (bits))))
+#define shr(value, bits) ((value) >> (bits))
+
+static const uint32_t K[64] = {
+    0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5,
+    0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
+    0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3,
+    0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
+    0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc,
+    0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
+    0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7,
+    0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
+    0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13,
+    0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
+    0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3,
+    0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
+    0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5,
+    0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
+    0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208,
+    0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2 };
+
+static void SHA256_Transform(SHA256_CTX* ctx) {
+    uint32_t W[64];
+    uint32_t A, B, C, D, E, F, G, H;
+    uint8_t* p = ctx->buf;
+    int t;
+
+    for(t = 0; t < 16; ++t) {
+        uint32_t tmp =  *p++ << 24;
+        tmp |= *p++ << 16;
+        tmp |= *p++ << 8;
+        tmp |= *p++;
+        W[t] = tmp;
+    }
+
+    for(; t < 64; t++) {
+        uint32_t s0 = ror(W[t-15], 7) ^ ror(W[t-15], 18) ^ shr(W[t-15], 3);
+        uint32_t s1 = ror(W[t-2], 17) ^ ror(W[t-2], 19) ^ shr(W[t-2], 10);
+        W[t] = W[t-16] + s0 + W[t-7] + s1;
+    }
+
+    A = ctx->state[0];
+    B = ctx->state[1];
+    C = ctx->state[2];
+    D = ctx->state[3];
+    E = ctx->state[4];
+    F = ctx->state[5];
+    G = ctx->state[6];
+    H = ctx->state[7];
+
+    for(t = 0; t < 64; t++) {
+        uint32_t s0 = ror(A, 2) ^ ror(A, 13) ^ ror(A, 22);
+        uint32_t maj = (A & B) ^ (A & C) ^ (B & C);
+        uint32_t t2 = s0 + maj;
+        uint32_t s1 = ror(E, 6) ^ ror(E, 11) ^ ror(E, 25);
+        uint32_t ch = (E & F) ^ ((~E) & G);
+        uint32_t t1 = H + s1 + ch + K[t] + W[t];
+
+        H = G;
+        G = F;
+        F = E;
+        E = D + t1;
+        D = C;
+        C = B;
+        B = A;
+        A = t1 + t2;
+    }
+
+    ctx->state[0] += A;
+    ctx->state[1] += B;
+    ctx->state[2] += C;
+    ctx->state[3] += D;
+    ctx->state[4] += E;
+    ctx->state[5] += F;
+    ctx->state[6] += G;
+    ctx->state[7] += H;
+}
+
+static const HASH_VTAB SHA256_VTAB = {
+    SHA256_init,
+    SHA256_update,
+    SHA256_final,
+    SHA256_hash,
+    SHA256_DIGEST_SIZE
+};
+
+void SHA256_init(SHA256_CTX* ctx) {
+    ctx->f = &SHA256_VTAB;
+    ctx->state[0] = 0x6a09e667;
+    ctx->state[1] = 0xbb67ae85;
+    ctx->state[2] = 0x3c6ef372;
+    ctx->state[3] = 0xa54ff53a;
+    ctx->state[4] = 0x510e527f;
+    ctx->state[5] = 0x9b05688c;
+    ctx->state[6] = 0x1f83d9ab;
+    ctx->state[7] = 0x5be0cd19;
+    ctx->count = 0;
+}
+
+
+void SHA256_update(SHA256_CTX* ctx, const void* data, int len) {
+    int i = (int) (ctx->count & 63);
+    const uint8_t* p = (const uint8_t*)data;
+
+    ctx->count += len;
+
+    while (len--) {
+        ctx->buf[i++] = *p++;
+        if (i == 64) {
+            SHA256_Transform(ctx);
+            i = 0;
+        }
+    }
+}
+
+
+const uint8_t* SHA256_final(SHA256_CTX* ctx) {
+    uint8_t *p = ctx->buf;
+    uint64_t cnt = ctx->count * 8;
+    int i;
+
+    SHA256_update(ctx, (uint8_t*)"\x80", 1);
+    while ((ctx->count & 63) != 56) {
+        SHA256_update(ctx, (uint8_t*)"\0", 1);
+    }
+    for (i = 0; i < 8; ++i) {
+        uint8_t tmp = (uint8_t) (cnt >> ((7 - i) * 8));
+        SHA256_update(ctx, &tmp, 1);
+    }
+
+    for (i = 0; i < 8; i++) {
+        uint32_t tmp = ctx->state[i];
+        *p++ = tmp >> 24;
+        *p++ = tmp >> 16;
+        *p++ = tmp >> 8;
+        *p++ = tmp >> 0;
+    }
+
+    return ctx->buf;
+}
+
+/* Convenience function */
+const uint8_t* SHA256_hash(const void* data, int len, uint8_t* digest) {
+    SHA256_CTX ctx;
+    SHA256_init(&ctx);
+    SHA256_update(&ctx, data, len);
+    memcpy(digest, SHA256_final(&ctx), SHA256_DIGEST_SIZE);
+    return digest;
+}

native/jni/external/stubs/selinux_stub.c

@@ -0,0 +1,356 @@
+#include <stdbool.h>
+#include <selinux/avc.h>
+#include <selinux/context.h>
+#include <selinux/get_context_list.h>
+#include <selinux/get_default_type.h>
+#include <selinux/label.h>
+#include <selinux/restorecon.h>
+#include <selinux/selinux.h>
+int is_selinux_enabled(void) { return 0; }
+int is_selinux_mls_enabled(void) { return 0; }
+void freecon(char * con) { }
+void freeconary(char ** con) { }
+int getcon(char ** con) { return 0; }
+int getcon_raw(char ** con) { return 0; }
+int setcon(const char * con) { return 0; }
+int setcon_raw(const char * con) { return 0; }
+int getpidcon(pid_t pid, char ** con) { return 0; }
+int getpidcon_raw(pid_t pid, char ** con) { return 0; }
+int getprevcon(char ** con) { return 0; }
+int getprevcon_raw(char ** con) { return 0; }
+int getexeccon(char ** con) { return 0; }
+int getexeccon_raw(char ** con) { return 0; }
+int setexeccon(const char * con) { return 0; }
+int setexeccon_raw(const char * con) { return 0; }
+int getfscreatecon(char ** con) { return 0; }
+int getfscreatecon_raw(char ** con) { return 0; }
+int setfscreatecon(const char * context) { return 0; }
+int setfscreatecon_raw(const char * context) { return 0; }
+int getkeycreatecon(char ** con) { return 0; }
+int getkeycreatecon_raw(char ** con) { return 0; }
+int setkeycreatecon(const char * context) { return 0; }
+int setkeycreatecon_raw(const char * context) { return 0; }
+int getsockcreatecon(char ** con) { return 0; }
+int getsockcreatecon_raw(char ** con) { return 0; }
+int setsockcreatecon(const char * context) { return 0; }
+int setsockcreatecon_raw(const char * context) { return 0; }
+int getfilecon(const char *path, char ** con) { return 0; }
+int getfilecon_raw(const char *path, char ** con) { return 0; }
+int lgetfilecon(const char *path, char ** con) { return 0; }
+int lgetfilecon_raw(const char *path, char ** con) { return 0; }
+int fgetfilecon(int fd, char ** con) { return 0; }
+int fgetfilecon_raw(int fd, char ** con) { return 0; }
+int setfilecon(const char *path, const char * con) { return 0; }
+int setfilecon_raw(const char *path, const char * con) { return 0; }
+int lsetfilecon(const char *path, const char * con) { return 0; }
+int lsetfilecon_raw(const char *path, const char * con) { return 0; }
+int fsetfilecon(int fd, const char * con) { return 0; }
+int fsetfilecon_raw(int fd, const char * con) { return 0; }
+int getpeercon(int fd, char ** con) { return 0; }
+int getpeercon_raw(int fd, char ** con) { return 0; }
+void selinux_set_callback(int type, union selinux_callback cb) { }
+int security_compute_av(const char * scon,
+					const char * tcon,
+					security_class_t tclass,
+					access_vector_t requested,
+					struct av_decision *avd) { return 0; }
+int security_compute_av_raw(const char * scon,
+					const char * tcon,
+					security_class_t tclass,
+					access_vector_t requested,
+					struct av_decision *avd) { return 0; }
+int security_compute_av_flags(const char * scon,
+					const char * tcon,
+					security_class_t tclass,
+					access_vector_t requested,
+					struct av_decision *avd) { return 0; }
+int security_compute_av_flags_raw(const char * scon,
+					const char * tcon,
+					security_class_t tclass,
+					access_vector_t requested,
+					struct av_decision *avd) { return 0; }
+int security_compute_create(const char * scon,
+					const char * tcon,
+					security_class_t tclass,
+					char ** newcon) { return 0; }
+int security_compute_create_raw(const char * scon,
+					const char * tcon,
+					security_class_t tclass,
+					char ** newcon) { return 0; }
+int security_compute_create_name(const char * scon,
+					const char * tcon,
+					security_class_t tclass,
+					const char *objname,
+					char ** newcon) { return 0; }
+int security_compute_create_name_raw(const char * scon,
+					const char * tcon,
+					security_class_t tclass,
+					const char *objname,
+					char ** newcon) { return 0; }
+int security_compute_relabel(const char * scon,
+					const char * tcon,
+					security_class_t tclass,
+					char ** newcon) { return 0; }
+int security_compute_relabel_raw(const char * scon,
+					const char * tcon,
+					security_class_t tclass,
+					char ** newcon) { return 0; }
+int security_compute_member(const char * scon,
+					const char * tcon,
+					security_class_t tclass,
+					char ** newcon) { return 0; }
+int security_compute_member_raw(const char * scon,
+					const char * tcon,
+					security_class_t tclass,
+					char ** newcon) { return 0; }
+int security_compute_user(const char * scon,
+				const char *username,
+				char *** con) { return 0; }
+int security_compute_user_raw(const char * scon,
+				const char *username,
+				char *** con) { return 0; }
+int security_load_policy(void *data, size_t len) { return 0; }
+int security_get_initial_context(const char *name,
+					char ** con) { return 0; }
+int security_get_initial_context_raw(const char *name,
+						char ** con) { return 0; }
+int selinux_mkload_policy(int preservebools) { return 0; }
+int selinux_init_load_policy(int *enforce) { return 0; }
+int security_set_boolean_list(size_t boolcnt,
+					SELboolean * boollist, int permanent) { return 0; }
+int security_load_booleans(char *path) { return 0; }
+int security_check_context(const char * con) { return 0; }
+int security_check_context_raw(const char * con) { return 0; }
+int security_canonicalize_context(const char * con,
+					char ** canoncon) { return 0; }
+int security_canonicalize_context_raw(const char * con,
+						char ** canoncon) { return 0; }
+int security_getenforce(void) { return 0; }
+int security_setenforce(int value) { return 0; }
+int security_deny_unknown(void) { return 0; }
+int security_disable(void) { return 0; }
+int security_policyvers(void) { return 0; }
+int security_get_boolean_names(char ***names, int *len) { return 0; }
+int security_get_boolean_pending(const char *name) { return 0; }
+int security_get_boolean_active(const char *name) { return 0; }
+int security_set_boolean(const char *name, int value) { return 0; }
+int security_commit_booleans(void) { return 0; }
+int selinux_set_mapping(struct security_class_mapping *map) { return 0; }
+security_class_t mode_to_security_class(mode_t mode) { return 0; }
+security_class_t string_to_security_class(const char *name) { return 0; }
+const char *security_class_to_string(security_class_t cls) { return 0; }
+const char *security_av_perm_to_string(security_class_t tclass,
+						access_vector_t perm) { return 0; }
+access_vector_t string_to_av_perm(security_class_t tclass,
+					const char *name) { return 0; }
+int security_av_string(security_class_t tclass,
+				access_vector_t av, char **result) { return 0; }
+void print_access_vector(security_class_t tclass, access_vector_t av) { }
+void set_matchpathcon_printf(void (*f) (const char *fmt, ...)) { }
+void set_matchpathcon_invalidcon(int (*f) (const char *path,
+						unsigned lineno,
+						char *context)) { }
+void set_matchpathcon_canoncon(int (*f) (const char *path,
+						unsigned lineno,
+						char **context)) { }
+void set_matchpathcon_flags(unsigned int flags) { }
+int matchpathcon_init(const char *path) { return 0; }
+int matchpathcon_init_prefix(const char *path, const char *prefix) { return 0; }
+void matchpathcon_fini(void) { }
+int realpath_not_final(const char *name, char *resolved_path) { return 0; }
+int matchpathcon(const char *path,
+			mode_t mode, char ** con) { return 0; }
+int matchpathcon_index(const char *path,
+				  mode_t mode, char ** con) { return 0; }
+int matchpathcon_filespec_add(ino_t ino, int specind, const char *file) { return 0; }
+void matchpathcon_filespec_destroy(void) { }
+void matchpathcon_filespec_eval(void) { }
+void matchpathcon_checkmatches(char *str) { }
+int matchmediacon(const char *media, char ** con) { return 0; }
+int selinux_getenforcemode(int *enforce) { return 0; }
+char *selinux_boolean_sub(const char *boolean_name) { return 0; }
+int selinux_getpolicytype(char **policytype) { return 0; }
+const char *selinux_policy_root(void) { return 0; }
+int selinux_set_policy_root(const char *rootpath) { return 0; }
+const char *selinux_current_policy_path(void) { return 0; }
+const char *selinux_binary_policy_path(void) { return 0; }
+const char *selinux_failsafe_context_path(void) { return 0; }
+const char *selinux_removable_context_path(void) { return 0; }
+const char *selinux_default_context_path(void) { return 0; }
+const char *selinux_user_contexts_path(void) { return 0; }
+const char *selinux_file_context_path(void) { return 0; }
+const char *selinux_file_context_homedir_path(void) { return 0; }
+const char *selinux_file_context_local_path(void) { return 0; }
+const char *selinux_file_context_subs_path(void) { return 0; }
+const char *selinux_file_context_subs_dist_path(void) { return 0; }
+const char *selinux_homedir_context_path(void) { return 0; }
+const char *selinux_media_context_path(void) { return 0; }
+const char *selinux_virtual_domain_context_path(void) { return 0; }
+const char *selinux_virtual_image_context_path(void) { return 0; }
+const char *selinux_lxc_contexts_path(void) { return 0; }
+const char *selinux_x_context_path(void) { return 0; }
+const char *selinux_sepgsql_context_path(void) { return 0; }
+const char *selinux_openrc_contexts_path(void) { return 0; }
+const char *selinux_openssh_contexts_path(void) { return 0; }
+const char *selinux_snapperd_contexts_path(void) { return 0; }
+const char *selinux_systemd_contexts_path(void) { return 0; }
+const char *selinux_contexts_path(void) { return 0; }
+const char *selinux_securetty_types_path(void) { return 0; }
+const char *selinux_booleans_subs_path(void) { return 0; }
+const char *selinux_booleans_path(void) { return 0; }
+const char *selinux_customizable_types_path(void) { return 0; }
+const char *selinux_users_path(void) { return 0; }
+const char *selinux_usersconf_path(void) { return 0; }
+const char *selinux_translations_path(void) { return 0; }
+const char *selinux_colors_path(void) { return 0; }
+const char *selinux_netfilter_context_path(void) { return 0; }
+const char *selinux_path(void) { return 0; }
+int selinux_check_access(const char * scon, const char * tcon, const char *tclass, const char *perm, void *auditdata) { return 0; }
+int selinux_check_passwd_access(access_vector_t requested) { return 0; }
+int checkPasswdAccess(access_vector_t requested) { return 0; }
+int selinux_check_securetty_context(const char * tty_context) { return 0; }
+void set_selinuxmnt(const char *mnt) { }
+int selinuxfs_exists(void) { return 0; }
+void fini_selinuxmnt(void) {}
+int setexecfilecon(const char *filename, const char *fallback_type) { return 0; }
+#ifndef DISABLE_RPM
+int rpm_execcon(unsigned int verified,
+			const char *filename,
+			char *const argv[], char *const envp[]) { return 0; }
+#endif
+int is_context_customizable(const char * scontext) { return 0; }
+int selinux_trans_to_raw_context(const char * trans,
+					char ** rawp) { return 0; }
+int selinux_raw_to_trans_context(const char * raw,
+					char ** transp) { return 0; }
+int selinux_raw_context_to_color(const char * raw,
+					char **color_str) { return 0; }
+int getseuserbyname(const char *linuxuser, char **seuser, char **level) { return 0; }
+int getseuser(const char *username, const char *service,
+			char **r_seuser, char **r_level) { return 0; }
+int selinux_file_context_cmp(const char * a,
+				const char * b) { return 0; }
+int selinux_file_context_verify(const char *path, mode_t mode) { return 0; }
+int selinux_lsetfilecon_default(const char *path) { return 0; }
+void selinux_reset_config(void) { }
+int avc_sid_to_context(security_id_t sid, char ** ctx) { return 0; }
+int avc_sid_to_context_raw(security_id_t sid, char ** ctx) { return 0; }
+int avc_context_to_sid(const char * ctx, security_id_t * sid) { return 0; }
+int avc_context_to_sid_raw(const char * ctx, security_id_t * sid) { return 0; }
+int sidget(security_id_t sid) { return 0; }
+int sidput(security_id_t sid) { return 0; }
+int avc_get_initial_sid(const char *name, security_id_t * sid) { return 0; }
+int avc_init(const char *msgprefix,
+		const struct avc_memory_callback *mem_callbacks,
+		const struct avc_log_callback *log_callbacks,
+		const struct avc_thread_callback *thread_callbacks,
+		const struct avc_lock_callback *lock_callbacks) { return 0; }
+int avc_open(struct selinux_opt *opts, unsigned nopts) { return 0; }
+void avc_cleanup(void) { }
+int avc_reset(void) { return 0; }
+void avc_destroy(void) { }
+int avc_has_perm_noaudit(security_id_t ssid,
+			security_id_t tsid,
+			security_class_t tclass,
+			access_vector_t requested,
+			struct avc_entry_ref *aeref, struct av_decision *avd) { return 0; }
+int avc_has_perm(security_id_t ssid, security_id_t tsid,
+			security_class_t tclass, access_vector_t requested,
+			struct avc_entry_ref *aeref, void *auditdata) { return 0; }
+void avc_audit(security_id_t ssid, security_id_t tsid,
+			security_class_t tclass, access_vector_t requested,
+			struct av_decision *avd, int result, void *auditdata) { }
+int avc_compute_create(security_id_t ssid,
+			security_id_t tsid,
+			security_class_t tclass, security_id_t * newsid) { return 0; }
+int avc_compute_member(security_id_t ssid,
+			security_id_t tsid,
+			security_class_t tclass, security_id_t * newsid) { return 0; }
+int avc_add_callback(int (*callback)
+			(uint32_t event, security_id_t ssid,
+			security_id_t tsid, security_class_t tclass,
+			access_vector_t perms,
+			access_vector_t * out_retained),
+			uint32_t events, security_id_t ssid,
+			security_id_t tsid, security_class_t tclass,
+			access_vector_t perms) { return 0; }
+void avc_cache_stats(struct avc_cache_stats *stats) { }
+void avc_av_stats(void) { }
+void avc_sid_stats(void) { }
+int avc_netlink_open(int blocking) { return 0; }
+void avc_netlink_loop(void) { }
+void avc_netlink_close(void) { }
+int avc_netlink_acquire_fd(void) { return 0; }
+void avc_netlink_release_fd(void) { }
+int avc_netlink_check_nb(void) { return 0; }
+int selinux_status_open(int fallback) { return 0; }
+void selinux_status_close(void) { }
+int selinux_status_updated(void) { return 0; }
+int selinux_status_getenforce(void) { return 0; }
+int selinux_status_policyload(void) { return 0; }
+int selinux_status_deny_unknown(void) { return 0; }
+context_t context_new(const char *s) { return 0; }
+char *context_str(context_t c) { return 0; }
+void context_free(context_t c) { }
+const char *context_type_get(context_t c) { return 0; }
+const char *context_range_get(context_t c) { return 0; }
+const char *context_role_get(context_t c) { return 0; }
+const char *context_user_get(context_t c) { return 0; }
+int context_type_set(context_t c, const char *s) { return 0; }
+int context_range_set(context_t c, const char *s) { return 0; }
+int context_role_set(context_t c, const char *s) { return 0; }
+int context_user_set(context_t c, const char *s) { return 0; }
+int get_ordered_context_list(const char *user,
+					char * fromcon,
+					char *** list) { return 0; }
+int get_ordered_context_list_with_level(const char *user,
+					const char *level,
+					char * fromcon,
+					char *** list) { return 0; }
+int get_default_context(const char *user,
+					char * fromcon,
+					char ** newcon) { return 0; }
+int get_default_context_with_level(const char *user,
+					const char *level,
+					char * fromcon,
+					char ** newcon) { return 0; }
+int get_default_context_with_role(const char *user,
+					const char *role,
+					char * fromcon,
+					char ** newcon) { return 0; }
+int get_default_context_with_rolelevel(const char *user,
+					const char *role,
+					const char *level,
+					char * fromcon,
+					char ** newcon) { return 0; }
+int query_user_context(char ** list,
+				  char ** newcon) { return 0; }
+int manual_user_enter_context(const char *user,
+					char ** newcon) { return 0; }
+const char *selinux_default_type_path(void) { return 0; }
+int get_default_type(const char *role, char **type) { return 0; }
+struct selabel_handle *selabel_open(unsigned int backend,
+					const struct selinux_opt *opts,
+					unsigned nopts) { return 0; }
+void selabel_close(struct selabel_handle *handle) { }
+int selabel_lookup(struct selabel_handle *handle, char **con,
+			const char *key, int type) { return 0; }
+int selabel_lookup_raw(struct selabel_handle *handle, char **con,
+			const char *key, int type) { return 0; }
+bool selabel_partial_match(struct selabel_handle *handle, const char *key) { return 0; }
+int selabel_lookup_best_match(struct selabel_handle *rec, char **con,
+				const char *key, const char **aliases, int type) { return 0; }
+int selabel_lookup_best_match_raw(struct selabel_handle *rec, char **con,
+				const char *key, const char **aliases, int type) { return 0; }
+int selabel_digest(struct selabel_handle *rec,
+				unsigned char **digest, size_t *digest_len,
+				char ***specfiles, size_t *num_specfiles) { return 0; }
+void selabel_stats(struct selabel_handle *handle) { }
+int selinux_restorecon(const char *pathname,
+					unsigned int restorecon_flags) { return 0; }
+struct selabel_handle *selinux_restorecon_default_handle(void) { return 0; }
+void selinux_restorecon_set_exclude_list(const char **exclude_list) { }
+int selinux_restorecon_set_alt_rootpath(const char *alt_rootpath) { return 0; }
+int selinux_restorecon_xattr(const char *pathname,
+					unsigned int xattr_flags,
+					struct dir_xattr ***xattr_list) { return 0; }

native/jni/external/stubs/sqlite3_stub.c

@@ -0,0 +1,676 @@
+#include "sqlite3.h"
+SQLITE_API const char *sqlite3_libversion(void) { return 0; }
+SQLITE_API const char *sqlite3_sourceid(void) { return 0; }
+SQLITE_API int sqlite3_libversion_number(void) { return 0; }
+#ifndef SQLITE_OMIT_COMPILEOPTION_DIAGS
+SQLITE_API int sqlite3_compileoption_used(const char *zOptName) { return 0; }
+SQLITE_API const char *sqlite3_compileoption_get(int N) { return 0; }
+#endif
+SQLITE_API int sqlite3_threadsafe(void) { return 0; }
+SQLITE_API int sqlite3_close(sqlite3 *db) { return 0; }
+SQLITE_API int sqlite3_close_v2(sqlite3 *db) { return 0; }
+SQLITE_API int sqlite3_exec(
+  sqlite3 *db,
+  const char *sql,
+  int (*callback)(void*,int,char**,char**),
+  void *v,
+  char **errmsg
+) { return 0; }
+SQLITE_API int sqlite3_initialize(void) { return 0; }
+SQLITE_API int sqlite3_shutdown(void) { return 0; }
+SQLITE_API int sqlite3_os_init(void) { return 0; }
+SQLITE_API int sqlite3_os_end(void) { return 0; }
+SQLITE_API int sqlite3_config(int i, ...) { return 0; }
+SQLITE_API int sqlite3_db_config(sqlite3 *db, int op, ...) { return 0; }
+SQLITE_API int sqlite3_extended_result_codes(sqlite3 *db, int onoff) { return 0; }
+SQLITE_API sqlite3_int64 sqlite3_last_insert_rowid(sqlite3 *db) { return 0; }
+SQLITE_API void sqlite3_set_last_insert_rowid(sqlite3 *db,sqlite3_int64 i) { }
+SQLITE_API int sqlite3_changes(sqlite3 *db) { return 0; }
+SQLITE_API int sqlite3_total_changes(sqlite3 *db) { return 0; }
+SQLITE_API void sqlite3_interrupt(sqlite3 *db) { }
+SQLITE_API int sqlite3_complete(const char *sql) { return 0; }
+SQLITE_API int sqlite3_complete16(const void *sql) { return 0; }
+SQLITE_API int sqlite3_busy_handler(sqlite3 *db, int(*f) (void *v,int i), void* v) { return 0; }
+SQLITE_API int sqlite3_busy_timeout(sqlite3 *db, int ms) { return 0; }
+SQLITE_API int sqlite3_get_table(
+  sqlite3 *db,
+  const char *zSql,
+  char ***pazResult,
+  int *pnRow,
+  int *pnColumn,
+  char **pzErrmsg
+) { return 0; }
+SQLITE_API void sqlite3_free_table(char **result) { }
+SQLITE_API char *sqlite3_mprintf(const char* s,...) { return 0; }
+SQLITE_API char *sqlite3_vmprintf(const char* s, va_list v) { return 0; }
+SQLITE_API char *sqlite3_snprintf(int i, char* s, const char* st, ...) { return 0; }
+SQLITE_API char *sqlite3_vsnprintf(int i, char* s, const char* st, va_list v) { return 0; }
+SQLITE_API void *sqlite3_malloc(int i) { return 0; }
+SQLITE_API void *sqlite3_malloc64(sqlite3_uint64 i) { return 0; }
+SQLITE_API void *sqlite3_realloc(void* v, int i) { return 0; }
+SQLITE_API void *sqlite3_realloc64(void* v, sqlite3_uint64 i) { return 0; }
+SQLITE_API void sqlite3_free(void* v) { }
+SQLITE_API sqlite3_uint64 sqlite3_msize(void* v) { return 0; }
+SQLITE_API sqlite3_int64 sqlite3_memory_used(void) { return 0; }
+SQLITE_API sqlite3_int64 sqlite3_memory_highwater(int resetFlag) { return 0; }
+SQLITE_API void sqlite3_randomness(int N, void *P) { }
+SQLITE_API int sqlite3_set_authorizer(
+  sqlite3 *db,
+  int (*xAuth)(void *v,int i,const char*,const char*,const char*,const char*),
+  void *pUserData
+) { return 0; }
+SQLITE_API SQLITE_DEPRECATED void *sqlite3_trace(sqlite3 *db,
+   void(*xTrace)(void *v,const char*), void* v) { return 0; }
+SQLITE_API SQLITE_DEPRECATED void *sqlite3_profile(sqlite3 *db,
+   void(*xProfile)(void *v,const char*,sqlite3_uint64), void* v) { return 0; }
+SQLITE_API int sqlite3_trace_v2(
+  sqlite3 *db,
+  unsigned uMask,
+  int(*xCallback)(unsigned,void *v,void *vv,void*),
+  void *pCtx
+) { return 0; }
+SQLITE_API void sqlite3_progress_handler(sqlite3 *db, int i, int(*f)(void*), void* v) { }
+SQLITE_API int sqlite3_open(
+  const char *filename,
+  sqlite3 **ppDb
+) { return 0; }
+SQLITE_API int sqlite3_open16(
+  const void *filename,
+  sqlite3 **ppDb
+) { return 0; }
+SQLITE_API int sqlite3_open_v2(
+  const char *filename,
+  sqlite3 **ppDb,
+  int flags,
+  const char *zVfs
+) { return 0; }
+SQLITE_API const char *sqlite3_uri_parameter(const char *zFilename, const char *zParam) { return 0; }
+SQLITE_API int sqlite3_uri_boolean(const char *zFile, const char *zParam, int bDefault) { return 0; }
+SQLITE_API sqlite3_int64 sqlite3_uri_int64(const char* s, const char* st, sqlite3_int64 i) { return 0; }
+SQLITE_API int sqlite3_errcode(sqlite3 *db) { return 0; }
+SQLITE_API int sqlite3_extended_errcode(sqlite3 *db) { return 0; }
+SQLITE_API const char *sqlite3_errmsg(sqlite3 *db) { return 0; }
+SQLITE_API const void *sqlite3_errmsg16(sqlite3 *db) { return 0; }
+SQLITE_API const char *sqlite3_errstr(int i) { return 0; }
+SQLITE_API int sqlite3_limit(sqlite3 *db, int id, int newVal) { return 0; }
+SQLITE_API int sqlite3_prepare(
+  sqlite3 *db,
+  const char *zSql,
+  int nByte,
+  sqlite3_stmt **ppStmt,
+  const char **pzTail
+) { return 0; }
+SQLITE_API int sqlite3_prepare_v2(
+  sqlite3 *db,
+  const char *zSql,
+  int nByte,
+  sqlite3_stmt **ppStmt,
+  const char **pzTail
+) { return 0; }
+SQLITE_API int sqlite3_prepare16(
+  sqlite3 *db,
+  const void *zSql,
+  int nByte,
+  sqlite3_stmt **ppStmt,
+  const void **pzTail
+) { return 0; }
+SQLITE_API int sqlite3_prepare16_v2(
+  sqlite3 *db,
+  const void *zSql,
+  int nByte,
+  sqlite3_stmt **ppStmt,
+  const void **pzTail
+) { return 0; }
+SQLITE_API const char *sqlite3_sql(sqlite3_stmt *pStmt) { return 0; }
+SQLITE_API char *sqlite3_expanded_sql(sqlite3_stmt *pStmt) { return 0; }
+SQLITE_API int sqlite3_stmt_readonly(sqlite3_stmt *pStmt) { return 0; }
+SQLITE_API int sqlite3_stmt_busy(sqlite3_stmt* s) { return 0; }
+SQLITE_API int sqlite3_bind_blob(sqlite3_stmt* s, int i, const void*v, int n, void(*f)(void*)) { return 0; }
+SQLITE_API int sqlite3_bind_blob64(sqlite3_stmt* s, int i, const void *v, sqlite3_uint64 ii,
+                        void(*f)(void*)) { return 0; }
+SQLITE_API int sqlite3_bind_double(sqlite3_stmt* s, int i, double d) { return 0; }
+SQLITE_API int sqlite3_bind_int(sqlite3_stmt* s, int i, int ii) { return 0; }
+SQLITE_API int sqlite3_bind_int64(sqlite3_stmt* s, int i, sqlite3_int64 ii) { return 0; }
+SQLITE_API int sqlite3_bind_null(sqlite3_stmt* s, int i) { return 0; }
+SQLITE_API int sqlite3_bind_text(sqlite3_stmt* s,int i,const char* str, int ii, void(*f)(void*)) { return 0; }
+SQLITE_API int sqlite3_bind_text16(sqlite3_stmt* s, int i, const void *v, int ii, void(*f)(void*)) { return 0; }
+SQLITE_API int sqlite3_bind_text64(sqlite3_stmt* s, int i, const char* str, sqlite3_uint64 ii,
+                         void(*f)(void*), unsigned char encoding) { return 0; }
+SQLITE_API int sqlite3_bind_value(sqlite3_stmt* s, int i, const sqlite3_value* v) { return 0; }
+SQLITE_API int sqlite3_bind_zeroblob(sqlite3_stmt* s, int i, int n) { return 0; }
+SQLITE_API int sqlite3_bind_zeroblob64(sqlite3_stmt* s, int i, sqlite3_uint64 ii) { return 0; }
+SQLITE_API int sqlite3_bind_parameter_count(sqlite3_stmt* s) { return 0; }
+SQLITE_API const char *sqlite3_bind_parameter_name(sqlite3_stmt* s, int i) { return 0; }
+SQLITE_API int sqlite3_bind_parameter_index(sqlite3_stmt* s, const char *zName) { return 0; }
+SQLITE_API int sqlite3_clear_bindings(sqlite3_stmt* s) { return 0; }
+SQLITE_API int sqlite3_column_count(sqlite3_stmt *pStmt) { return 0; }
+SQLITE_API const char *sqlite3_column_name(sqlite3_stmt* s, int N) { return 0; }
+SQLITE_API const void *sqlite3_column_name16(sqlite3_stmt* s, int N) { return 0; }
+SQLITE_API const char *sqlite3_column_database_name(sqlite3_stmt* s,int i) { return 0; }
+SQLITE_API const void *sqlite3_column_database_name16(sqlite3_stmt* s,int i){ return 0; }
+SQLITE_API const char *sqlite3_column_table_name(sqlite3_stmt* s,int i) { return 0; }
+SQLITE_API const void *sqlite3_column_table_name16(sqlite3_stmt* s,int i) { return 0; }
+SQLITE_API const char *sqlite3_column_origin_name(sqlite3_stmt* s,int i) { return 0; }
+SQLITE_API const void *sqlite3_column_origin_name16(sqlite3_stmt* s,int i) { return 0; }
+SQLITE_API const char *sqlite3_column_decltype(sqlite3_stmt* s,int i) { return 0; }
+SQLITE_API const void *sqlite3_column_decltype16(sqlite3_stmt* s,int i) { return 0; }
+SQLITE_API int sqlite3_step(sqlite3_stmt* s) { return 0; }
+SQLITE_API int sqlite3_data_count(sqlite3_stmt *pStmt) { return 0; }
+SQLITE_API const void *sqlite3_column_blob(sqlite3_stmt* s, int iCol) { return 0; }
+SQLITE_API int sqlite3_column_bytes(sqlite3_stmt* s, int iCol) { return 0; }
+SQLITE_API int sqlite3_column_bytes16(sqlite3_stmt* s, int iCol) { return 0; }
+SQLITE_API double sqlite3_column_double(sqlite3_stmt* s, int iCol) { return 0; }
+SQLITE_API int sqlite3_column_int(sqlite3_stmt* s, int iCol) { return 0; }
+SQLITE_API sqlite3_int64 sqlite3_column_int64(sqlite3_stmt* s, int iCol) { return 0; }
+SQLITE_API const unsigned char *sqlite3_column_text(sqlite3_stmt* s, int iCol) { return 0; }
+SQLITE_API const void *sqlite3_column_text16(sqlite3_stmt* s, int iCol) { return 0; }
+SQLITE_API int sqlite3_column_type(sqlite3_stmt* s, int iCol) { return 0; }
+SQLITE_API sqlite3_value *sqlite3_column_value(sqlite3_stmt* s, int iCol) { return 0; }
+SQLITE_API int sqlite3_finalize(sqlite3_stmt *pStmt) { return 0; }
+SQLITE_API int sqlite3_reset(sqlite3_stmt *pStmt) { return 0; }
+SQLITE_API int sqlite3_create_function(
+  sqlite3 *db,
+  const char *zFunctionName,
+  int nArg,
+  int eTextRep,
+  void *pApp,
+  void (*xFunc)(sqlite3_context* c,int i,sqlite3_value**),
+  void (*xStep)(sqlite3_context* c,int i,sqlite3_value**),
+  void (*xFinal)(sqlite3_context* c)
+) { return 0; }
+SQLITE_API int sqlite3_create_function16(
+  sqlite3 *db,
+  const void *zFunctionName,
+  int nArg,
+  int eTextRep,
+  void *pApp,
+  void (*xFunc)(sqlite3_context* c,int i,sqlite3_value**),
+  void (*xStep)(sqlite3_context* c,int i,sqlite3_value**),
+  void (*xFinal)(sqlite3_context* c)
+) { return 0; }
+SQLITE_API int sqlite3_create_function_v2(
+  sqlite3 *db,
+  const char *zFunctionName,
+  int nArg,
+  int eTextRep,
+  void *pApp,
+  void (*xFunc)(sqlite3_context* c,int i,sqlite3_value**),
+  void (*xStep)(sqlite3_context* c,int i,sqlite3_value**),
+  void (*xFinal)(sqlite3_context* c),
+  void(*xDestroy)(void*)
+) { return 0; }
+#ifndef SQLITE_OMIT_DEPRECATED
+SQLITE_API SQLITE_DEPRECATED int sqlite3_aggregate_count(sqlite3_context* c) { return 0; }
+SQLITE_API SQLITE_DEPRECATED int sqlite3_expired(sqlite3_stmt* s) { return 0; }
+SQLITE_API SQLITE_DEPRECATED int sqlite3_transfer_bindings(sqlite3_stmt* s, sqlite3_stmt* ss) { return 0; }
+SQLITE_API SQLITE_DEPRECATED int sqlite3_global_recover(void) { return 0; }
+SQLITE_API SQLITE_DEPRECATED void sqlite3_thread_cleanup(void) { }
+SQLITE_API SQLITE_DEPRECATED int sqlite3_memory_alarm(void(*f)(void *v,sqlite3_int64,int),
+                      void *v,sqlite3_int64 i) { return 0; }
+#endif
+SQLITE_API const void *sqlite3_value_blob(sqlite3_value* v) { return 0; }
+SQLITE_API int sqlite3_value_bytes(sqlite3_value* v) { return 0; }
+SQLITE_API int sqlite3_value_bytes16(sqlite3_value* v) { return 0; }
+SQLITE_API double sqlite3_value_double(sqlite3_value* v) { return 0; }
+SQLITE_API int sqlite3_value_int(sqlite3_value* v) { return 0; }
+SQLITE_API sqlite3_int64 sqlite3_value_int64(sqlite3_value* v) { return 0; }
+SQLITE_API const unsigned char *sqlite3_value_text(sqlite3_value* v) { return 0; }
+SQLITE_API const void *sqlite3_value_text16(sqlite3_value* v) { return 0; }
+SQLITE_API const void *sqlite3_value_text16le(sqlite3_value* v) { return 0; }
+SQLITE_API const void *sqlite3_value_text16be(sqlite3_value* v) { return 0; }
+SQLITE_API int sqlite3_value_type(sqlite3_value* v) { return 0; }
+SQLITE_API int sqlite3_value_numeric_type(sqlite3_value* v) { return 0; }
+SQLITE_API unsigned int sqlite3_value_subtype(sqlite3_value* v) { return 0; }
+SQLITE_API sqlite3_value *sqlite3_value_dup(const sqlite3_value* v) { return 0; }
+SQLITE_API void sqlite3_value_free(sqlite3_value* v) { }
+SQLITE_API void *sqlite3_aggregate_context(sqlite3_context* c, int nBytes) { return 0; }
+SQLITE_API void *sqlite3_user_data(sqlite3_context* c) { return 0; }
+SQLITE_API sqlite3 *sqlite3_context_db_handle(sqlite3_context* c) { return 0; }
+SQLITE_API void *sqlite3_get_auxdata(sqlite3_context* c, int N) { return 0; }
+SQLITE_API void sqlite3_set_auxdata(sqlite3_context* c, int N, void *v, void (*f)(void*)) { }
+SQLITE_API void sqlite3_result_blob(sqlite3_context* c, const void *v, int i, void(*f)(void*)) { }
+SQLITE_API void sqlite3_result_blob64(sqlite3_context* c,const void *v,
+                           sqlite3_uint64 i,void(*f)(void*)) { }
+SQLITE_API void sqlite3_result_double(sqlite3_context* c, double d) { }
+SQLITE_API void sqlite3_result_error(sqlite3_context* c, const char* s, int i) { }
+SQLITE_API void sqlite3_result_error16(sqlite3_context* c, const void *v, int i) { }
+SQLITE_API void sqlite3_result_error_toobig(sqlite3_context* c) { }
+SQLITE_API void sqlite3_result_error_nomem(sqlite3_context* c) { }
+SQLITE_API void sqlite3_result_error_code(sqlite3_context* c, int i) { }
+SQLITE_API void sqlite3_result_int(sqlite3_context* c, int i) { }
+SQLITE_API void sqlite3_result_int64(sqlite3_context* c, sqlite3_int64 i) { }
+SQLITE_API void sqlite3_result_null(sqlite3_context* c) { }
+SQLITE_API void sqlite3_result_text(sqlite3_context* c, const char* s, int i, void(*f)(void*)) { }
+SQLITE_API void sqlite3_result_text64(sqlite3_context* c, const char* s, sqlite3_uint64 i,
+                           void(*f)(void*), unsigned char encoding) { }
+SQLITE_API void sqlite3_result_text16(sqlite3_context* c, const void *v, int i, void(*f)(void*)) { }
+SQLITE_API void sqlite3_result_text16le(sqlite3_context* c, const void *v, int i,void(*f)(void*)) { }
+SQLITE_API void sqlite3_result_text16be(sqlite3_context* c, const void *v, int i,void(*f)(void*)) { }
+SQLITE_API void sqlite3_result_value(sqlite3_context* c, sqlite3_value* v) { }
+SQLITE_API void sqlite3_result_zeroblob(sqlite3_context* c, int n) { }
+SQLITE_API int sqlite3_result_zeroblob64(sqlite3_context* c, sqlite3_uint64 n) { return 0; }
+SQLITE_API void sqlite3_result_subtype(sqlite3_context* c,unsigned int i) { }
+SQLITE_API int sqlite3_create_collation(
+  sqlite3 *db,
+  const char *zName,
+  int eTextRep,
+  void *pArg,
+  int(*xCompare)(void *,int,const void *,int,const void*)
+) { return 0; }
+SQLITE_API int sqlite3_create_collation_v2(
+  sqlite3 *db,
+  const char *zName,
+  int eTextRep,
+  void *pArg,
+  int(*xCompare)(void *,int,const void*,int,const void*),
+  void(*xDestroy)(void*)
+) { return 0; }
+SQLITE_API int sqlite3_create_collation16(
+  sqlite3 *db,
+  const void *zName,
+  int eTextRep,
+  void *pArg,
+  int(*xCompare)(void *,int,const void *,int,const void*)
+) { return 0; }
+SQLITE_API int sqlite3_collation_needed(
+  sqlite3 *db,
+  void *v,
+  void(*f)(void *v,sqlite3 *db,int eTextRep,const char*)
+) { return 0; }
+SQLITE_API int sqlite3_collation_needed16(
+  sqlite3 *db,
+  void *v,
+  void(*f)(void *v,sqlite3 *db,int eTextRep,const void*)
+) { return 0; }
+#ifdef SQLITE_HAS_CODEC
+SQLITE_API int sqlite3_key(
+  sqlite3 *db,
+  const void *pKey, int nKey
+) { return 0; }
+SQLITE_API int sqlite3_key_v2(
+  sqlite3 *db,
+  const char *zDbName,
+  const void *pKey, int nKey
+) { return 0; }
+SQLITE_API int sqlite3_rekey(
+  sqlite3 *db,
+  const void *pKey, int nKey
+) { return 0; }
+SQLITE_API int sqlite3_rekey_v2(
+  sqlite3 *db,
+  const char *zDbName,
+  const void *pKey, int nKey
+) { return 0; }
+SQLITE_API void sqlite3_activate_see(
+  const char *zPassPhrase
+) { return 0; }
+#endif
+#ifdef SQLITE_ENABLE_CEROD
+SQLITE_API void sqlite3_activate_cerod(
+  const char *zPassPhrase
+) { return 0; }
+#endif
+SQLITE_API int sqlite3_sleep(int i) { return 0; }
+SQLITE_API int sqlite3_get_autocommit(sqlite3 *db) { return 0; }
+SQLITE_API sqlite3 *sqlite3_db_handle(sqlite3_stmt *s) { return 0; }
+SQLITE_API const char *sqlite3_db_filename(sqlite3 *db, const char *zDbName) { return 0; }
+SQLITE_API int sqlite3_db_readonly(sqlite3 *db, const char *zDbName) { return 0; }
+SQLITE_API sqlite3_stmt *sqlite3_next_stmt(sqlite3 *pDb, sqlite3_stmt *pStmt) { return 0; }
+SQLITE_API void *sqlite3_commit_hook(sqlite3 *db, int(*f)(void*), void *v) { return 0; }
+SQLITE_API void *sqlite3_rollback_hook(sqlite3 *db, void(*f)(void *), void *v) { return 0; }
+SQLITE_API void *sqlite3_update_hook(
+  sqlite3 *db,
+  void(*f)(void *,int ,char const *,char const *,sqlite3_int64),
+  void *v
+) { return 0; }
+SQLITE_API int sqlite3_enable_shared_cache(int i) { return 0; }
+SQLITE_API int sqlite3_release_memory(int i) { return 0; }
+SQLITE_API int sqlite3_db_release_memory(sqlite3 *db) { return 0; }
+SQLITE_API sqlite3_int64 sqlite3_soft_heap_limit64(sqlite3_int64 N) { return 0; }
+SQLITE_API SQLITE_DEPRECATED void sqlite3_soft_heap_limit(int N) { }
+SQLITE_API int sqlite3_table_column_metadata(
+  sqlite3 *db,
+  const char *zDbName,
+  const char *zTableName,
+  const char *zColumnName,
+  char const **pzDataType,
+  char const **pzCollSeq,
+  int *pNotNull,
+  int *pPrimaryKey,
+  int *pAutoinc
+) { return 0; }
+SQLITE_API int sqlite3_load_extension(
+  sqlite3 *db,
+  const char *zFile,
+  const char *zProc,
+  char **pzErrMsg
+) { return 0; }
+SQLITE_API int sqlite3_enable_load_extension(sqlite3 *db, int onoff) { return 0; }
+SQLITE_API int sqlite3_auto_extension(void(*xEntryPoint)(void)) { return 0; }
+SQLITE_API int sqlite3_cancel_auto_extension(void(*xEntryPoint)(void)) { return 0; }
+SQLITE_API void sqlite3_reset_auto_extension(void) { }
+SQLITE_API int sqlite3_create_module(
+  sqlite3 *db,
+  const char *zName,
+  const sqlite3_module *p,
+  void *pClientData
+) { return 0; }
+SQLITE_API int sqlite3_create_module_v2(
+  sqlite3 *db,
+  const char *zName,
+  const sqlite3_module *p,
+  void *pClientData,
+  void(*xDestroy)(void*)
+) { return 0; }
+SQLITE_API int sqlite3_declare_vtab(sqlite3 *db, const char *zSQL) { return 0; }
+SQLITE_API int sqlite3_overload_function(sqlite3 *db, const char *zFuncName, int nArg) { return 0; }
+SQLITE_API int sqlite3_blob_open(
+  sqlite3 *db,
+  const char *zDb,
+  const char *zTable,
+  const char *zColumn,
+  sqlite3_int64 iRow,
+  int flags,
+  sqlite3_blob **ppBlob
+) { return 0; }
+SQLITE_API int sqlite3_blob_reopen(sqlite3_blob *b, sqlite3_int64 i) { return 0; }
+SQLITE_API int sqlite3_blob_close(sqlite3_blob *b) { return 0; }
+SQLITE_API int sqlite3_blob_bytes(sqlite3_blob *b) { return 0; }
+SQLITE_API int sqlite3_blob_read(sqlite3_blob *b, void *Z, int N, int iOffset) { return 0; }
+SQLITE_API int sqlite3_blob_write(sqlite3_blob *b, const void *z, int n, int iOffset) { return 0; }
+SQLITE_API sqlite3_vfs *sqlite3_vfs_find(const char *zVfsName) { return 0; }
+SQLITE_API int sqlite3_vfs_register(sqlite3_vfs *v, int makeDflt) { return 0; }
+SQLITE_API int sqlite3_vfs_unregister(sqlite3_vfs *v) { return 0; }
+SQLITE_API sqlite3_mutex *sqlite3_mutex_alloc(int i) { return 0; }
+SQLITE_API void sqlite3_mutex_free(sqlite3_mutex *m) { }
+SQLITE_API void sqlite3_mutex_enter(sqlite3_mutex *m) { }
+SQLITE_API int sqlite3_mutex_try(sqlite3_mutex *m) { return 0; }
+SQLITE_API void sqlite3_mutex_leave(sqlite3_mutex *m) { }
+#ifndef NDEBUG
+SQLITE_API int sqlite3_mutex_held(sqlite3_mutex *m) { return 0; }
+SQLITE_API int sqlite3_mutex_notheld(sqlite3_mutex *m) { return 0; }
+#endif
+SQLITE_API sqlite3_mutex *sqlite3_db_mutex(sqlite3* db) { return 0; }
+SQLITE_API int sqlite3_file_control(sqlite3 *db, const char *zDbName, int op, void* v) { return 0; }
+SQLITE_API int sqlite3_test_control(int op, ...) { return 0; }
+SQLITE_API int sqlite3_status(int op, int *pCurrent, int *pHighwater, int resetFlag) { return 0; }
+SQLITE_API int sqlite3_status64(
+  int op,
+  sqlite3_int64 *pCurrent,
+  sqlite3_int64 *pHighwater,
+  int resetFlag
+) { return 0; }
+SQLITE_API int sqlite3_db_status(sqlite3 *db, int op, int *pCur, int *pHiwtr, int resetFlg) { return 0; }
+SQLITE_API int sqlite3_stmt_status(sqlite3_stmt* s, int op,int resetFlg) { return 0; }
+SQLITE_API sqlite3_backup *sqlite3_backup_init(
+  sqlite3 *pDest,
+  const char *zDestName,
+  sqlite3 *pSource,
+  const char *zSourceName
+) { return 0; }
+SQLITE_API int sqlite3_backup_step(sqlite3_backup *p, int nPage) { return 0; }
+SQLITE_API int sqlite3_backup_finish(sqlite3_backup *p) { return 0; }
+SQLITE_API int sqlite3_backup_remaining(sqlite3_backup *p) { return 0; }
+SQLITE_API int sqlite3_backup_pagecount(sqlite3_backup *p) { return 0; }
+SQLITE_API int sqlite3_unlock_notify(
+  sqlite3 *pBlocked,
+  void (*xNotify)(void **apArg, int nArg),
+  void *pNotifyArg
+) { return 0; }
+SQLITE_API int sqlite3_stricmp(const char *s, const char *ss) { return 0; }
+SQLITE_API int sqlite3_strnicmp(const char *s, const char *ss, int i) { return 0; }
+SQLITE_API int sqlite3_strglob(const char *zGlob, const char *zStr) { return 0; }
+SQLITE_API int sqlite3_strlike(const char *zGlob, const char *zStr, unsigned int cEsc) { return 0; }
+SQLITE_API void sqlite3_log(int iErrCode, const char *zFormat, ...) { }
+SQLITE_API void *sqlite3_wal_hook(
+  sqlite3 *db,
+  int(*f)(void *,sqlite3 *db,const char*,int i),
+  void *v
+) { return 0; }
+SQLITE_API int sqlite3_wal_autocheckpoint(sqlite3 *db, int N) { return 0; }
+SQLITE_API int sqlite3_wal_checkpoint(sqlite3 *db, const char *zDb) { return 0; }
+SQLITE_API int sqlite3_wal_checkpoint_v2(
+  sqlite3 *db,
+  const char *zDb,
+  int eMode,
+  int *pnLog,
+  int *pnCkpt
+) { return 0; }
+#define SQLITE_CHECKPOINT_PASSIVE  0
+#define SQLITE_CHECKPOINT_FULL     1
+#define SQLITE_CHECKPOINT_RESTART  2
+#define SQLITE_CHECKPOINT_TRUNCATE 3
+SQLITE_API int sqlite3_vtab_config(sqlite3 *db, int op, ...) { return 0; }
+#define SQLITE_VTAB_CONSTRAINT_SUPPORT 1
+SQLITE_API int sqlite3_vtab_on_conflict(sqlite3 *db) { return 0; }
+#define SQLITE_ROLLBACK 1
+#define SQLITE_FAIL     3
+#define SQLITE_REPLACE  5
+#define SQLITE_SCANSTAT_NLOOP    0
+#define SQLITE_SCANSTAT_NVISIT   1
+#define SQLITE_SCANSTAT_EST      2
+#define SQLITE_SCANSTAT_NAME     3
+#define SQLITE_SCANSTAT_EXPLAIN  4
+#define SQLITE_SCANSTAT_SELECTID 5
+SQLITE_API int sqlite3_stmt_scanstatus(
+  sqlite3_stmt *pStmt,
+  int idx,
+  int iScanStatusOp,
+  void *pOut
+) { return 0; }
+SQLITE_API void sqlite3_stmt_scanstatus_reset(sqlite3_stmt *s) { }
+SQLITE_API int sqlite3_db_cacheflush(sqlite3* db) { return 0; }
+#if defined(SQLITE_ENABLE_PREUPDATE_HOOK)
+SQLITE_API void *sqlite3_preupdate_hook(
+  sqlite3 *db,
+  void(*xPreUpdate)(
+    void *pCtx,
+    sqlite3 *db,
+    int op,
+    char const *zDb,
+    char const *zName,
+    sqlite3_int64 iKey1,
+    sqlite3_int64 iKey2
+  ),
+  void*
+) { return 0; }
+SQLITE_API int sqlite3_preupdate_old(sqlite3 *, int i, sqlite3_value **) { return 0; }
+SQLITE_API int sqlite3_preupdate_count(sqlite3 *) { return 0; }
+SQLITE_API int sqlite3_preupdate_depth(sqlite3 *) { return 0; }
+SQLITE_API int sqlite3_preupdate_new(sqlite3 *, int i, sqlite3_value **) { return 0; }
+#endif
+SQLITE_API int sqlite3_system_errno(sqlite3 *db) { return 0; }
+SQLITE_API SQLITE_EXPERIMENTAL int sqlite3_snapshot_get(
+  sqlite3 *db,
+  const char *zSchema,
+  sqlite3_snapshot **ppSnapshot
+) { return 0; }
+SQLITE_API SQLITE_EXPERIMENTAL int sqlite3_snapshot_open(
+  sqlite3 *db,
+  const char *zSchema,
+  sqlite3_snapshot *pSnapshot
+) { return 0; }
+SQLITE_API SQLITE_EXPERIMENTAL void sqlite3_snapshot_free(sqlite3_snapshot* s) { }
+SQLITE_API SQLITE_EXPERIMENTAL int sqlite3_snapshot_cmp(
+  sqlite3_snapshot *p1,
+  sqlite3_snapshot *p2
+) { return 0; }
+SQLITE_API SQLITE_EXPERIMENTAL int sqlite3_snapshot_recover(sqlite3 *db, const char *zDb) { return 0; }
+SQLITE_API int sqlite3_rtree_geometry_callback(
+  sqlite3 *db,
+  const char *zGeom,
+  int (*xGeom)(sqlite3_rtree_geometry*, int i, sqlite3_rtree_dbl*,int*),
+  void *pContext
+) { return 0; }
+SQLITE_API int sqlite3_rtree_query_callback(
+  sqlite3 *db,
+  const char *zQueryFunc,
+  int (*xQueryFunc)(sqlite3_rtree_query_info*),
+  void *pContext,
+  void (*xDestructor)(void*)
+) { return 0; }
+typedef struct sqlite3_session sqlite3_session;
+typedef struct sqlite3_changeset_iter sqlite3_changeset_iter;
+SQLITE_API int sqlite3session_create(
+  sqlite3 *db,
+  const char *zDb,
+  sqlite3_session **ppSession
+) { return 0; }
+SQLITE_API void sqlite3session_delete(sqlite3_session *pSession) { }
+SQLITE_API int sqlite3session_enable(sqlite3_session *pSession, int bEnable) { return 0; }
+SQLITE_API int sqlite3session_indirect(sqlite3_session *pSession, int bIndirect) { return 0; }
+SQLITE_API int sqlite3session_attach(
+  sqlite3_session *pSession,
+  const char *zTab
+) { return 0; }
+SQLITE_API void sqlite3session_table_filter(
+  sqlite3_session *pSession,
+  int(*xFilter)(
+    void *pCtx,
+    const char *zTab
+  ),
+  void *pCtx
+) { }
+SQLITE_API int sqlite3session_changeset(
+  sqlite3_session *pSession,
+  int *pnChangeset,
+  void **ppChangeset
+) { return 0; }
+SQLITE_API int sqlite3session_diff(
+  sqlite3_session *pSession,
+  const char *zFromDb,
+  const char *zTbl,
+  char **pzErrMsg
+) { return 0; }
+SQLITE_API int sqlite3session_patchset(
+  sqlite3_session *pSession,
+  int *pnPatchset,
+  void **ppPatchset
+) { return 0; }
+SQLITE_API int sqlite3session_isempty(sqlite3_session *pSession) { return 0; }
+SQLITE_API int sqlite3changeset_start(
+  sqlite3_changeset_iter **pp,
+  int nChangeset,
+  void *pChangeset
+) { return 0; }
+SQLITE_API int sqlite3changeset_next(sqlite3_changeset_iter *pIter) { return 0; }
+SQLITE_API int sqlite3changeset_op(
+  sqlite3_changeset_iter *pIter,
+  const char **pzTab,
+  int *pnCol,
+  int *pOp,
+  int *pbIndirect
+) { return 0; }
+SQLITE_API int sqlite3changeset_pk(
+  sqlite3_changeset_iter *pIter,
+  unsigned char **pabPK,
+  int *pnCol
+) { return 0; }
+SQLITE_API int sqlite3changeset_old(
+  sqlite3_changeset_iter *pIter,
+  int iVal,
+  sqlite3_value **ppValue
+) { return 0; }
+SQLITE_API int sqlite3changeset_new(
+  sqlite3_changeset_iter *pIter,
+  int iVal,
+  sqlite3_value **ppValue
+) { return 0; }
+SQLITE_API int sqlite3changeset_conflict(
+  sqlite3_changeset_iter *pIter,
+  int iVal,
+  sqlite3_value **ppValue
+) { return 0; }
+SQLITE_API int sqlite3changeset_fk_conflicts(
+  sqlite3_changeset_iter *pIter,
+  int *pnOut
+) { return 0; }
+SQLITE_API int sqlite3changeset_finalize(sqlite3_changeset_iter *pIter) { return 0; }
+SQLITE_API int sqlite3changeset_invert(
+  int nIn, const void *pIn,
+  int *pnOut, void **ppOut
+) { return 0; }
+SQLITE_API int sqlite3changeset_concat(
+  int nA,
+  void *pA,
+  int nB,
+  void *pB,
+  int *pnOut,
+  void **ppOut
+) { return 0; }
+typedef struct sqlite3_changegroup sqlite3_changegroup;
+int sqlite3changegroup_new(sqlite3_changegroup **pp) { return 0; }
+int sqlite3changegroup_add(sqlite3_changegroup *c, int nData, void *pData) { return 0; }
+int sqlite3changegroup_output(
+  sqlite3_changegroup *c,
+  int *pnData,
+  void **ppData
+) { return 0; }
+void sqlite3changegroup_delete(sqlite3_changegroup *c) { }
+SQLITE_API int sqlite3changeset_apply(
+  sqlite3 *db,
+  int nChangeset,
+  void *pChangeset,
+  int(*xFilter)(
+    void *pCtx,
+    const char *zTab
+  ),
+  int(*xConflict)(
+    void *pCtx,
+    int eConflict,
+    sqlite3_changeset_iter *p
+  ),
+  void *pCtx
+) { return 0; }
+SQLITE_API int sqlite3changeset_apply_strm(
+  sqlite3 *db,
+  int (*xInput)(void *pIn, void *pData, int *pnData),
+  void *pIn,
+  int(*xFilter)(
+    void *pCtx,
+    const char *zTab
+  ),
+  int(*xConflict)(
+    void *pCtx,
+    int eConflict,
+    sqlite3_changeset_iter *p
+  ),
+  void *pCtx
+) { return 0; }
+SQLITE_API int sqlite3changeset_concat_strm(
+  int (*xInputA)(void *pIn, void *pData, int *pnData),
+  void *pInA,
+  int (*xInputB)(void *pIn, void *pData, int *pnData),
+  void *pInB,
+  int (*xOutput)(void *pOut, const void *pData, int nData),
+  void *pOut
+) { return 0; }
+SQLITE_API int sqlite3changeset_invert_strm(
+  int (*xInput)(void *pIn, void *pData, int *pnData),
+  void *pIn,
+  int (*xOutput)(void *pOut, const void *pData, int nData),
+  void *pOut
+) { return 0; }
+SQLITE_API int sqlite3changeset_start_strm(
+  sqlite3_changeset_iter **pp,
+  int (*xInput)(void *pIn, void *pData, int *pnData),
+  void *pIn
+) { return 0; }
+SQLITE_API int sqlite3session_changeset_strm(
+  sqlite3_session *pSession,
+  int (*xOutput)(void *pOut, const void *pData, int nData),
+  void *pOut
+) { return 0; }
+SQLITE_API int sqlite3session_patchset_strm(
+  sqlite3_session *pSession,
+  int (*xOutput)(void *pOut, const void *pData, int nData),
+  void *pOut
+) { return 0; }
+int sqlite3changegroup_add_strm(sqlite3_changegroup *c,
+    int (*xInput)(void *pIn, void *pData, int *pnData),
+    void *pIn
+) { return 0; }
+int sqlite3changegroup_output_strm(sqlite3_changegroup *c,
+    int (*xOutput)(void *pOut, const void *pData, int nData),
+    void *pOut
+) { return 0; }

native/jni/include/cpio.h

@@ -0,0 +1,60 @@
+#ifndef _CPIO_H_
+#define _CPIO_H_
+
+#include <stdint.h>
+
+#include "vector.h"
+
+typedef struct cpio_entry {
+	// uint32_t ino;
+	uint32_t mode;
+	uint32_t uid;
+	uint32_t gid;
+	// uint32_t nlink;
+	// uint32_t mtime;
+	uint32_t filesize;
+	// uint32_t devmajor;
+	// uint32_t devminor;
+	// uint32_t rdevmajor;
+	// uint32_t rdevminor;
+	// uint32_t namesize;
+	// uint32_t check;
+	char *filename;
+	void *data;
+	int remove;
+} cpio_entry;
+
+typedef struct cpio_newc_header {
+	char magic[6];
+	char ino[8];
+	char mode[8];
+	char uid[8];
+	char gid[8];
+	char nlink[8];
+	char mtime[8];
+	char filesize[8];
+	char devmajor[8];
+	char devminor[8];
+	char rdevmajor[8];
+	char rdevminor[8];
+	char namesize[8];
+	char check[8];
+} cpio_newc_header;
+
+// Basic cpio functions
+void cpio_free(cpio_entry *e);
+int cpio_find(struct vector *v, const char *entry);
+int cpio_cmp(const void *a, const void *b);
+void parse_cpio(struct vector *v, const char *filename);
+void dump_cpio(struct vector *v, const char *filename);
+void cpio_vec_insert(struct vector *v, cpio_entry *n);
+void cpio_vec_destroy(struct vector *v);
+void cpio_rm(struct vector *v, int recursive, const char *entry);
+void cpio_mkdir(struct vector *v, mode_t mode, const char *entry);
+void cpio_ln(struct vector *v, const char *target, const char *entry);
+void cpio_add(struct vector *v, mode_t mode, const char *entry, const char *filename);
+int cpio_mv(struct vector *v, const char *from, const char *to);
+int cpio_extract(struct vector *v, const char *entry, const char *filename);
+void cpio_extract_all(struct vector *v);
+
+#endif

native/jni/include/daemon.h

@@ -0,0 +1,83 @@
+/* daemon.h - Utility functions for daemon-client communication
+ */
+
+#ifndef _DAEMON_H_
+#define _DAEMON_H_
+
+#include <pthread.h>
+#include <sys/un.h>
+#include <sys/socket.h>
+
+extern int is_daemon_init, seperate_vendor;
+
+// Commands require connecting to daemon
+enum {
+	DO_NOTHING = 0,
+	SUPERUSER,
+	CHECK_VERSION,
+	CHECK_VERSION_CODE,
+	POST_FS,
+	POST_FS_DATA,
+	LATE_START,
+	LAUNCH_MAGISKHIDE,
+	STOP_MAGISKHIDE,
+	ADD_HIDELIST,
+	RM_HIDELIST,
+	LS_HIDELIST
+};
+
+// Return codes for daemon
+enum {
+	DAEMON_ERROR = -1,
+	DAEMON_SUCCESS = 0,
+	ROOT_REQUIRED,
+	LOGD_DISABLED,
+	HIDE_IS_ENABLED,
+	HIDE_NOT_ENABLED,
+	HIDE_ITEM_EXIST,
+	HIDE_ITEM_NOT_EXIST,
+};
+
+// daemon.c
+
+void start_daemon();
+int connect_daemon();
+void auto_start_magiskhide();
+void daemon_init();
+
+// socket.c
+
+int setup_socket(struct sockaddr_un *sun);
+int recv_fd(int sockfd);
+void send_fd(int sockfd, int fd);
+int read_int(int fd);
+void write_int(int fd, int val);
+char* read_string(int fd);
+void write_string(int fd, const char* val);
+
+/***************
+ * Boot Stages *
+ ***************/
+
+void post_fs(int client);
+void post_fs_data(int client);
+void late_start(int client);
+void fix_filecon();
+
+/**************
+ * MagiskHide *
+ **************/
+
+void launch_magiskhide(int client);
+void stop_magiskhide(int client);
+void add_hide_list(int client);
+void rm_hide_list(int client);
+void ls_hide_list(int client);
+
+/*************
+ * Superuser *
+ *************/
+
+void su_daemon_receiver(int client, struct ucred *credential);
+
+#endif

native/jni/include/list.h

@@ -0,0 +1,43 @@
+/* list.h - Double link list implementation
+ */
+
+#ifndef _LIST_H_
+#define _LIST_H_
+
+#include <stddef.h>
+
+struct list_head {
+	struct list_head *next;
+	struct list_head *prev;
+};
+
+void init_list_head(struct list_head *head);
+void list_insert(struct list_head *pos, struct list_head *node);
+void list_insert_end(struct list_head *head, struct list_head *node);
+struct list_head *list_pop(struct list_head *pos);
+struct list_head *list_pop_end(struct list_head *head);
+
+#define list_entry(pos, type, member) ({ \
+	const typeof( ((type *)0)->member ) *__mptr = (pos); \
+	(type *)( (char *)__mptr - offsetof(type,member) );})
+
+#define list_for_each(ptr, head, type, member) \
+	ptr = list_entry((head)->next, type, member); \
+	for (struct list_head *__ = (head)->next; __ != (head); __ = __->next, ptr = list_entry(__, type, member))
+
+#define list_for_each_r(ptr, head, type, member) \
+	ptr = list_entry((head)->prev, type, member); \
+	for (struct list_head *__ = (head)->prev; __ != (head); __ = __->prev, ptr = list_entry(__, type, member))
+
+#define list_destory(head, type, member, func) ({ \
+	struct list_head *node = head->next; \
+	while(node != head) { \
+		node = node->next; \
+		if (func) func(list_entry(node->prev, line_list, pos)); \
+		free(list_entry(node->prev, line_list, pos)); \
+	} \
+	head->next = head; \
+	head->prev = head; \
+})
+
+#endif

native/jni/include/logging.h

@@ -0,0 +1,87 @@
+/* logging.h - Error handling and logging
+ */
+
+#ifndef _LOGGING_H_
+#define _LOGGING_H_
+
+#include <string.h>
+#include <errno.h>
+#include <stdlib.h>
+
+#define str(a) #a
+#define xstr(a) str(a)
+
+/**************
+ * No logging *
+ **************/
+
+#define LOGD(...)
+#define LOGI(...)
+#define LOGW(...)
+#define LOGE(...)
+#define PLOGE(...)
+
+/******************
+ * Daemon logging *
+ ******************/
+
+#ifdef IS_DAEMON
+
+#undef LOGI
+#undef LOGW
+#undef LOGE
+#undef PLOGE
+
+#include <pthread.h>
+#include <android/log.h>
+
+#define LOG_TAG    "Magisk"
+
+#ifdef MAGISK_DEBUG
+#undef LOGD
+#define LOGD(...)  __android_log_print(ANDROID_LOG_DEBUG, LOG_TAG, __VA_ARGS__)
+#endif
+#define LOGI(...)  __android_log_print(ANDROID_LOG_INFO, LOG_TAG, __VA_ARGS__)
+#define LOGW(...)  __android_log_print(ANDROID_LOG_WARN, LOG_TAG, __VA_ARGS__)
+#define LOGE(...)  __android_log_print(ANDROID_LOG_ERROR, LOG_TAG, __VA_ARGS__)
+#define PLOGE(fmt, args...) LOGE(fmt " failed with %d: %s", ##args, errno, strerror(errno))
+
+enum {
+	HIDE_EVENT,
+	LOG_EVENT,
+	DEBUG_EVENT
+};
+
+struct log_listener {
+	int fd;
+	int (*filter) (const char*);
+};
+
+extern struct log_listener log_events[];
+extern int logd;
+
+void monitor_logs();
+void start_debug_full_log();
+void stop_debug_full_log();
+void start_debug_log();
+
+#endif
+
+/********************
+ * Tools Log & Exit *
+ ********************/
+
+#ifdef XWRAP_EXIT
+
+#undef LOGE
+#undef PLOGE
+
+#include <stdio.h>
+
+#define LOGE(...) { fprintf(stderr, __VA_ARGS__); exit(1); }
+#define PLOGE(fmt, args...) { fprintf(stderr, fmt " failed with %d: %s\n\n", ##args, errno, strerror(errno)); exit(1); }
+
+#endif
+
+
+#endif // _LOGGING_H_

native/jni/include/magisk.h

@@ -0,0 +1,75 @@
+/* magisk.h - Top header
+ */
+
+#ifndef _MAGISK_H_
+#define _MAGISK_H_
+
+#include "logging.h"
+
+#define MAGISK_VER_STR  xstr(MAGISK_VERSION) ":MAGISK"
+#define SOCKET_NAME     "d30138f2310a9fb9c54a3e0c21f58591"
+
+#ifndef ARG_MAX
+#define ARG_MAX 4096
+#endif
+
+#define LOGFILE         "/cache/magisk.log"
+#define DEBUG_LOG       "/data/adb/magisk_debug.log"
+#define UNBLOCKFILE     "/dev/.magisk.unblock"
+#define PATCHDONE       "/dev/.magisk.patch.done"
+#define DISABLEFILE     "/cache/.disable_magisk"
+#define UNINSTALLER     "/cache/magisk_uninstaller.sh"
+#define CACHEMOUNT      "/cache/magisk_mount"
+#define MAGISKTMP       "/sbin/.core"
+#define MIRRDIR         MAGISKTMP "/mirror"
+#define BBPATH          MAGISKTMP "/busybox"
+#define MOUNTPOINT      MAGISKTMP "/img"
+#define COREDIR         MOUNTPOINT "/.core"
+#define HOSTSFILE       COREDIR "/hosts"
+#define HIDELIST        COREDIR "/hidelist"
+#define MAINIMG         "/data/adb/magisk.img"
+#define DATABIN         "/data/adb/magisk"
+#define MANAGERAPK      DATABIN "/magisk.apk"
+#define MAGISKRC        "/init.magisk.rc"
+
+
+// selinuxfs paths
+#define SELINUX_PATH        "/sys/fs/selinux/"
+#define SELINUX_ENFORCE     SELINUX_PATH "enforce"
+#define SELINUX_POLICY      SELINUX_PATH "policy"
+#define SELINUX_LOAD        SELINUX_PATH "load"
+
+// split policy paths
+#define PLAT_POLICY_DIR     "/system/etc/selinux/"
+#define NONPLAT_POLICY_DIR  "/vendor/etc/selinux/"
+#define SPLIT_PLAT_CIL      PLAT_POLICY_DIR "plat_sepolicy.cil"
+#define SPLIT_PLAT_MAPPING  PLAT_POLICY_DIR "mapping/%s.cil"
+#define SPLIT_PRECOMPILE    NONPLAT_POLICY_DIR "precompiled_sepolicy"
+#define SPLIT_NONPLAT_VER   NONPLAT_POLICY_DIR "plat_sepolicy_vers.txt"
+
+#define MAGISKHIDE_PROP     "persist.magisk.hide"
+
+extern char *argv0;     /* For changing process name */
+
+#define applet          ((char *[]) { "su", "resetprop", "magiskhide", NULL })
+#define init_applet     ((char *[]) { "magiskpolicy", "supolicy", NULL })
+
+extern int (*applet_main[]) (int, char *[]), (*init_applet_main[]) (int, char *[]);
+extern char socket_name[];   /* Workaround compiler bug pre NDK r13 */
+
+int create_links(const char *bin, const char *path);
+
+// Multi-call entrypoints
+int magiskhide_main(int argc, char *argv[]);
+int magiskpolicy_main(int argc, char *argv[]);
+int su_client_main(int argc, char *argv[]);
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+int resetprop_main(int argc, char *argv[]);
+#ifdef __cplusplus
+}
+#endif
+
+#endif

native/jni/include/magiskrc.h

@@ -0,0 +1,44 @@
+const char magiskrc[] =
+
+// Triggers
+
+"on post-fs\n"
+"   start logd\n"
+"   start magisk_pfs\n"
+"   wait /dev/.magisk.unblock 10\n"
+"\n"
+
+"on post-fs-data\n"
+"   load_persist_props\n"
+"   rm /dev/.magisk.unblock\n"
+"   start magisk_pfsd\n"
+"   wait /dev/.magisk.unblock 10\n"
+"   rm /dev/.magisk.unblock\n"
+"\n"
+
+// Services
+
+"service magisk_daemon /sbin/magisk --daemon\n"
+"   user root\n"
+"   seclabel u:r:su:s0\n"
+"   oneshot\n"
+"\n"
+
+"service magisk_pfs /sbin/magisk --post-fs\n"
+"   user root\n"
+"   seclabel u:r:su:s0\n"
+"   oneshot\n"
+"\n"
+
+"service magisk_pfsd /sbin/magisk --post-fs-data\n"
+"   user root\n"
+"   seclabel u:r:su:s0\n"
+"   oneshot\n"
+"\n"
+
+"service magisk_service /sbin/magisk  --service\n"
+"   class late_start\n"
+"   user root\n"
+"   seclabel u:r:su:s0\n"
+"   oneshot\n"
+;

native/jni/include/resetprop.h

@@ -0,0 +1,25 @@
+/* resetprop.h - API for resetprop
+ */
+
+#ifndef _RESETPROP_H_
+#define _RESETPROP_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+int prop_exist(const char *name);
+int setprop(const char *name, const char *value);
+int setprop2(const char *name, const char *value, const int trigger);
+char *getprop(const char *name);
+char *getprop2(const char *name, int persist);
+int deleteprop(const char *name);
+int deleteprop2(const char *name, const int persist);
+int read_prop_file(const char* filename, const int trigger);
+void getprop_all(void (*callback)(const char*, const char*));
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif

native/jni/include/utils.h

@@ -0,0 +1,154 @@
+/* util.h - Header for all utility functions
+ */
+
+#ifndef _UTILS_H_
+#define _UTILS_H_
+
+#include <stdio.h>
+#include <dirent.h>
+#include <pthread.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+
+#include "vector.h"
+
+#define UID_SHELL  (get_shell_uid())
+#define UID_ROOT   0
+#define UID_SYSTEM (get_system_uid())
+#define UID_RADIO  (get_radio_uid())
+
+// xwrap.c
+
+FILE *xfopen(const char *pathname, const char *mode);
+FILE *xfdopen(int fd, const char *mode);
+#define GET_MACRO(_1, _2, _3, NAME, ...) NAME
+#define xopen(...) GET_MACRO(__VA_ARGS__, xopen3, xopen2)(__VA_ARGS__)
+int xopen2(const char *pathname, int flags);
+int xopen3(const char *pathname, int flags, mode_t mode);
+int xopenat(int dirfd, const char *pathname, int flags);
+ssize_t xwrite(int fd, const void *buf, size_t count);
+ssize_t xread(int fd, void *buf, size_t count);
+ssize_t xxread(int fd, void *buf, size_t count);
+int xpipe2(int pipefd[2], int flags);
+int xsetns(int fd, int nstype);
+DIR *xopendir(const char *name);
+DIR *xfdopendir(int fd);
+struct dirent *xreaddir(DIR *dirp);
+pid_t xsetsid();
+int xsocket(int domain, int type, int protocol);
+int xbind(int sockfd, const struct sockaddr *addr, socklen_t addrlen);
+int xconnect(int sockfd, const struct sockaddr *addr, socklen_t addrlen);
+int xlisten(int sockfd, int backlog);
+int xaccept4(int sockfd, struct sockaddr *addr, socklen_t *addrlen, int flags);
+void *xmalloc(size_t size);
+void *xcalloc(size_t nmemb, size_t size);
+void *xrealloc(void *ptr, size_t size);
+ssize_t xsendmsg(int sockfd, const struct msghdr *msg, int flags);
+ssize_t xrecvmsg(int sockfd, struct msghdr *msg, int flags);
+int xpthread_create(pthread_t *thread, const pthread_attr_t *attr,
+	void *(*start_routine) (void *), void *arg);
+int xsocketpair(int domain, int type, int protocol, int sv[2]);
+int xstat(const char *pathname, struct stat *buf);
+int xlstat(const char *pathname, struct stat *buf);
+int xdup2(int oldfd, int newfd);
+ssize_t xreadlink(const char *pathname, char *buf, size_t bufsiz);
+ssize_t xreadlinkat(int dirfd, const char *pathname, char *buf, size_t bufsiz);
+int xsymlink(const char *target, const char *linkpath);
+int xmount(const char *source, const char *target,
+	const char *filesystemtype, unsigned long mountflags,
+	const void *data);
+int xumount(const char *target);
+int xumount2(const char *target, int flags);
+int xrename(const char *oldpath, const char *newpath);
+int xmkdir(const char *pathname, mode_t mode);
+int xmkdirs(const char *pathname, mode_t mode);
+int xmkdirat(int dirfd, const char *pathname, mode_t mode);
+void *xmmap(void *addr, size_t length, int prot, int flags,
+	int fd, off_t offset);
+ssize_t xsendfile(int out_fd, int in_fd, off_t *offset, size_t count);
+pid_t xfork();
+
+// misc.c
+
+#define quit_signals ((int []) { SIGALRM, SIGABRT, SIGHUP, SIGPIPE, SIGQUIT, SIGTERM, SIGINT, 0 })
+
+unsigned get_shell_uid();
+unsigned get_system_uid();
+unsigned get_radio_uid();
+int check_data();
+int file_to_vector(const char* filename, struct vector *v);
+int vector_to_file(const char* filename, struct vector *v);
+ssize_t fdgets(char *buf, size_t size, int fd);
+void ps(void (*func)(int));
+void ps_filter_proc_name(const char *filter, void (*func)(int));
+void unlock_blocks();
+void setup_sighandlers(void (*handler)(int));
+int exec_command(int err, int *fd, void (*setupenv)(struct vector*), const char *argv0, ...);
+int exec_command_sync(char *const argv0, ...);
+int bind_mount(const char *from, const char *to);
+void get_client_cred(int fd, struct ucred *cred);
+int switch_mnt_ns(int pid);
+int fork_dont_care();
+void wait_till_exists(const char *target);
+void gen_rand_str(char *buf, int len);
+
+// file.c
+
+#define align(p, a)     (((p) + (a) - 1) / (a) * (a))
+#define align_off(p, a) (align(p, a) - (p))
+
+extern char **excl_list;
+
+struct file_attr {
+	struct stat st;
+	char con[128];
+};
+
+int fd_getpath(int fd, char *path, size_t size);
+int mkdirs(const char *pathname, mode_t mode);
+void in_order_walk(int dirfd, void (*callback)(int, struct dirent*));
+void rm_rf(const char *path);
+void frm_rf(int dirfd);
+void mv_f(const char *source, const char *destination);
+void mv_dir(int src, int dest);
+void cp_afc(const char *source, const char *destination);
+void link_dir(int src, int dest);
+void clone_dir(int src, int dest);
+int getattr(const char *path, struct file_attr *a);
+int getattrat(int dirfd, const char *pathname, struct file_attr *a);
+int fgetattr(int fd, struct file_attr *a);
+int setattr(const char *path, struct file_attr *a);
+int setattrat(int dirfd, const char *pathname, struct file_attr *a);
+int fsetattr(int fd, struct file_attr *a);
+void fclone_attr(const int sourcefd, const int targetfd);
+void clone_attr(const char *source, const char *target);
+void restorecon(int dirfd, int force);
+int mmap_ro(const char *filename, void **buf, size_t *size);
+int mmap_rw(const char *filename, void **buf, size_t *size);
+void fd_full_read(int fd, void **buf, size_t *size);
+void full_read(const char *filename, void **buf, size_t *size);
+void full_read_at(int dirfd, const char *filename, void **buf, size_t *size);
+void stream_full_read(int fd, void **buf, size_t *size);
+void write_zero(int fd, size_t size);
+
+// img.c
+
+#define round_size(a) ((((a) / 32) + 2) * 32)
+#define SOURCE_TMP "/dev/source"
+#define TARGET_TMP "/dev/target"
+
+int create_img(const char *img, int size);
+int get_img_size(const char *img, int *used, int *total);
+int resize_img(const char *img, int size);
+char *mount_image(const char *img, const char *target);
+void umount_image(const char *target, const char *device);
+int merge_img(const char *source, const char *target);
+void trim_img(const char *img);
+
+// pattern.c
+
+void patch_init_rc(void **buf, size_t *size);
+int patch_verity(void **buf, uint32_t *size, int patch);
+void patch_encryption(void **buf, uint32_t *size);
+
+#endif

native/jni/include/vector.h

@@ -0,0 +1,37 @@
+/* vector.h - A simple vector implementation in c
+ */
+
+#ifndef _VECTOR_H_
+#define _VECTOR_H_
+
+#include <sys/types.h>
+
+struct vector {
+	unsigned size;
+	unsigned cap;
+	void **data;
+};
+
+void vec_init(struct vector *v);
+void vec_push_back(struct vector *v, void *p);
+void *vec_pop_back(struct vector *v);
+void vec_sort(struct vector *v, int (*compar)(const void *, const void *));
+void vec_destroy(struct vector *v);
+void vec_deep_destroy(struct vector *v);
+struct vector *vec_dup(struct vector *v);
+
+#define vec_size(v) (v)->size
+#define vec_cap(v) (v)->cap
+#define vec_entry(v) (v)->data
+/* Usage: vec_for_each(vector *v, void *e) */
+#define vec_for_each(v, e) \
+	e = v ? (v)->data[0] : NULL; \
+	for (int _ = 0; v && _ < (v)->size; ++_, e = (v)->data[_])
+
+#define vec_for_each_r(v, e) \
+	e = (v && (v)->size > 0) ? (v)->data[(v)->size - 1] : NULL; \
+	for (int _ = ((int) (v)->size) - 1; v && _ >= 0; --_, e = (v)->data[_])
+
+#define vec_cur(v) vec_entry(v)[_]
+
+#endif

native/jni/magiskboot/bootimg.c

@@ -0,0 +1,431 @@
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/mman.h>
+
+#include "bootimg.h"
+#include "magiskboot.h"
+#include "utils.h"
+#include "logging.h"
+#include "mincrypt/sha.h"
+#include "mincrypt/sha256.h"
+
+#define INSUF_BLOCK_RET    2
+#define CHROMEOS_RET       3
+#define ELF32_RET          4
+#define ELF64_RET          5
+
+// Macros to determine header on-the-go
+#define lheader(b, e, o) \
+	((b)->flags & PXA_FLAG) ? \
+	(((struct pxa_boot_img_hdr*) (b)->hdr)->e o) : \
+	(((struct boot_img_hdr*) (b)->hdr)->e o)
+
+#define header(b, e) (lheader(b, e,))
+
+static void dump(void *buf, size_t size, const char *filename) {
+	if (size == 0)
+		return;
+	int fd = creat(filename, 0644);
+	xwrite(fd, buf, size);
+	close(fd);
+}
+
+static size_t restore(const char *filename, int fd) {
+	int ifd = xopen(filename, O_RDONLY);
+	size_t size = lseek(ifd, 0, SEEK_END);
+	lseek(ifd, 0, SEEK_SET);
+	xsendfile(fd, ifd, NULL, size);
+	close(ifd);
+	return size;
+}
+
+static void restore_buf(int fd, const void *buf, size_t size) {
+	xwrite(fd, buf, size);
+}
+
+static void print_hdr(const boot_img *boot) {
+	fprintf(stderr, "KERNEL [%u]\n", header(boot, kernel_size));
+	fprintf(stderr, "RAMDISK [%u]\n", header(boot, ramdisk_size));
+	fprintf(stderr, "SECOND [%u]\n", header(boot, second_size));
+	fprintf(stderr, "EXTRA [%u]\n", header(boot, extra_size));
+	fprintf(stderr, "PAGESIZE [%u]\n", header(boot, page_size));
+
+	if (!(boot->flags & PXA_FLAG)) {
+		uint32_t os_version = ((boot_img_hdr*) boot->hdr)->os_version;
+		if (os_version) {
+			int a,b,c,y,m = 0;
+			int version, patch_level;
+			version = os_version >> 11;
+			patch_level = os_version & 0x7ff;
+
+			a = (version >> 14) & 0x7f;
+			b = (version >> 7) & 0x7f;
+			c = version & 0x7f;
+			fprintf(stderr, "OS_VERSION [%d.%d.%d]\n", a, b, c);
+
+			y = (patch_level >> 4) + 2000;
+			m = patch_level & 0xf;
+			fprintf(stderr, "PATCH_LEVEL [%d-%02d]\n", y, m);
+		}
+	}
+
+	fprintf(stderr, "NAME [%s]\n", header(boot, name));
+	fprintf(stderr, "CMDLINE [%s]\n", header(boot, cmdline));
+	fprintf(stderr, "CHECKSUM [");
+	for (int i = 0; i < ((boot->flags & SHA256_FLAG) ? SHA256_DIGEST_SIZE : SHA_DIGEST_SIZE); ++i)
+		fprintf(stderr, "%02x", header(boot, id)[i]);
+	fprintf(stderr, "]\n");
+}
+
+static void clean_boot(boot_img *boot) {
+	munmap(boot->map_addr, boot->map_size);
+	free(boot->hdr);
+	free(boot->k_hdr);
+	free(boot->r_hdr);
+	free(boot->b_hdr);
+	memset(boot, 0, sizeof(*boot));
+}
+
+#define pos_align() pos = align(pos, header(boot, page_size))
+int parse_img(const char *image, boot_img *boot) {
+	memset(boot, 0, sizeof(*boot));
+	int is_blk = mmap_ro(image, &boot->map_addr, &boot->map_size);
+
+	// Parse image
+	fprintf(stderr, "Parsing boot image: [%s]\n", image);
+	for (void *head = boot->map_addr; head < boot->map_addr + boot->map_size; ++head) {
+		size_t pos = 0;
+
+		switch (check_fmt(head, boot->map_size)) {
+		case CHROMEOS:
+			// The caller should know it's chromeos, as it needs additional signing
+			boot->flags |= CHROMEOS_FLAG;
+			continue;
+		case DHTB:
+			boot->flags |= DHTB_FLAG;
+			boot->flags |= SEANDROID_FLAG;
+			fprintf(stderr, "DHTB_HDR\n");
+			continue;
+		case ELF32:
+			exit(ELF32_RET);
+		case ELF64:
+			exit(ELF64_RET);
+		case BLOB:
+			boot->flags |= BLOB_FLAG;
+			fprintf(stderr, "TEGRA_BLOB\n");
+			boot->b_hdr = malloc(sizeof(blob_hdr));
+			memcpy(boot->b_hdr, head, sizeof(blob_hdr));
+			continue;
+		case AOSP:
+			// Read the header
+			if (((boot_img_hdr*) head)->page_size >= 0x02000000) {
+				boot->flags |= PXA_FLAG;
+				fprintf(stderr, "PXA_BOOT_HDR\n");
+				boot->hdr = malloc(sizeof(pxa_boot_img_hdr));
+				memcpy(boot->hdr, head, sizeof(pxa_boot_img_hdr));
+			} else if (memcmp(((boot_img_hdr*) head)->cmdline, NOOKHD_MAGIC, 12) == 0
+					|| memcmp(((boot_img_hdr*) head)->cmdline, NOOKHD_NEW_MAGIC, 26) == 0) {
+				boot->flags |= NOOKHD_FLAG;
+				fprintf(stderr, "NOOKHD_GREEN_LOADER\n");
+				head += NOOKHD_PRE_HEADER_SZ - 1;
+				continue;
+			} else if (memcmp(((boot_img_hdr*) head)->name, ACCLAIM_MAGIC, 10) == 0) {
+				boot->flags |= ACCLAIM_FLAG;
+				fprintf(stderr, "ACCLAIM_BAUWKSBOOT\n");
+				head += ACCLAIM_PRE_HEADER_SZ - 1;
+				continue;
+			} else {
+				boot->hdr = malloc(sizeof(boot_img_hdr));
+				memcpy(boot->hdr, head, sizeof(boot_img_hdr));
+			}
+			pos += header(boot, page_size);
+
+			for (int i = SHA_DIGEST_SIZE; i < SHA256_DIGEST_SIZE; ++i) {
+				if (header(boot, id)[i]) {
+					boot->flags |= SHA256_FLAG;
+					break;
+				}
+			}
+
+			print_hdr(boot);
+
+			boot->kernel = head + pos;
+			pos += header(boot, kernel_size);
+			pos_align();
+
+			boot->ramdisk = head + pos;
+			pos += header(boot, ramdisk_size);
+			pos_align();
+
+			boot->second = head + pos;
+			pos += header(boot, second_size);
+			pos_align();
+
+			boot->extra = head + pos;
+			pos += header(boot, extra_size);
+			pos_align();
+
+			if (pos < boot->map_size) {
+				boot->tail = head + pos;
+				boot->tail_size = boot->map_size - pos;
+			}
+
+			// Check tail info, currently only for LG Bump and Samsung SEANDROIDENFORCE
+			if (boot->tail_size >= 16 && memcmp(boot->tail, SEANDROID_MAGIC, 16) == 0) {
+				boot->flags |= SEANDROID_FLAG;
+			} else if (boot->tail_size >= 16 && memcmp(boot->tail, LG_BUMP_MAGIC, 16) == 0) {
+				boot->flags |= LG_BUMP_FLAG;
+			}
+
+			// Search for dtb in kernel
+			for (uint32_t i = 0; i < header(boot, kernel_size); ++i) {
+				if (memcmp(boot->kernel + i, DTB_MAGIC, 4) == 0) {
+					boot->dtb = boot->kernel + i;
+					boot->dt_size = header(boot, kernel_size) - i;
+					lheader(boot, kernel_size, = i);
+					fprintf(stderr, "DTB [%u]\n", boot->dt_size);
+					break;
+				}
+			}
+
+			boot->k_fmt = check_fmt(boot->kernel, header(boot, kernel_size));
+			boot->r_fmt = check_fmt(boot->ramdisk, header(boot, ramdisk_size));
+
+			// Check MTK
+			if (boot->k_fmt == MTK) {
+				fprintf(stderr, "MTK_KERNEL_HDR\n");
+				boot->flags |= MTK_KERNEL;
+				boot->k_hdr = malloc(sizeof(mtk_hdr));
+				memcpy(boot->k_hdr, boot->kernel, sizeof(mtk_hdr));
+				fprintf(stderr, "KERNEL [%u]\n", boot->k_hdr->size);
+				fprintf(stderr, "NAME [%s]\n", boot->k_hdr->name);
+				boot->kernel += 512;
+				lheader(boot, kernel_size, -= 512);
+				boot->k_fmt = check_fmt(boot->kernel, header(boot, kernel_size));
+			}
+			if (boot->r_fmt == MTK) {
+				fprintf(stderr, "MTK_RAMDISK_HDR\n");
+				boot->flags |= MTK_RAMDISK;
+				boot->r_hdr = malloc(sizeof(mtk_hdr));
+				memcpy(boot->r_hdr, boot->ramdisk, sizeof(mtk_hdr));
+				fprintf(stderr, "RAMDISK [%u]\n", boot->r_hdr->size);
+				fprintf(stderr, "NAME [%s]\n", boot->r_hdr->name);
+				boot->ramdisk += 512;
+				lheader(boot, ramdisk_size, -= 512);
+				boot->r_fmt = check_fmt(boot->ramdisk, header(boot, ramdisk_size));
+			}
+
+			char fmt[16];
+			get_fmt_name(boot->k_fmt, fmt);
+			fprintf(stderr, "KERNEL_FMT [%s]\n", fmt);
+			get_fmt_name(boot->r_fmt, fmt);
+			fprintf(stderr, "RAMDISK_FMT [%s]\n", fmt);
+
+			return boot->flags & CHROMEOS_FLAG ? CHROMEOS_RET :
+				   ((is_blk && boot->tail_size < 500 * 1024) ? INSUF_BLOCK_RET : 0);
+		default:
+			continue;
+		}
+	}
+	LOGE("No boot image magic found!\n");
+}
+
+int unpack(const char *image) {
+	boot_img boot;
+	int ret = parse_img(image, &boot);
+	int fd;
+
+	// Dump kernel
+	if (COMPRESSED(boot.k_fmt)) {
+		fd = creat(KERNEL_FILE, 0644);
+		decomp(boot.k_fmt, fd, boot.kernel, header(&boot, kernel_size));
+		close(fd);
+	} else {
+		dump(boot.kernel, header(&boot, kernel_size), KERNEL_FILE);
+	}
+
+	// Dump dtb
+	dump(boot.dtb, boot.dt_size, DTB_FILE);
+
+	// Dump ramdisk
+	if (COMPRESSED(boot.r_fmt)) {
+		fd = creat(RAMDISK_FILE, 0644);
+		decomp(boot.r_fmt, fd, boot.ramdisk, header(&boot, ramdisk_size));
+		close(fd);
+	} else {
+		dump(boot.ramdisk, header(&boot, ramdisk_size), RAMDISK_FILE);
+	}
+
+	// Dump second
+	dump(boot.second, header(&boot, second_size), SECOND_FILE);
+
+	// Dump extra
+	dump(boot.extra, header(&boot, extra_size), EXTRA_FILE);
+
+	clean_boot(&boot);
+	return ret;
+}
+
+#define file_align() write_zero(fd, align_off(lseek(fd, 0, SEEK_CUR) - header_off, header(&boot, page_size)))
+void repack(const char* orig_image, const char* out_image) {
+	boot_img boot;
+
+	off_t header_off, kernel_off, ramdisk_off, second_off, extra_off;
+
+	// Parse original image
+	parse_img(orig_image, &boot);
+
+	// Reset all sizes
+	lheader(&boot, kernel_size, = 0);
+	lheader(&boot, ramdisk_size, = 0);
+	lheader(&boot, second_size, = 0);
+	lheader(&boot, extra_size, = 0);
+	boot.dt_size = 0;
+
+	fprintf(stderr, "Repack to boot image: [%s]\n", out_image);
+
+	// Create new image
+	int fd = creat(out_image, 0644);
+
+	if (boot.flags & DHTB_FLAG) {
+		// Skip DHTB header
+		write_zero(fd, 512);
+	} else if (boot.flags & BLOB_FLAG) {
+		// Skip blob header
+		write_zero(fd, sizeof(blob_hdr));
+	} else if (boot.flags & NOOKHD_FLAG) {
+		restore_buf(fd, boot.map_addr, NOOKHD_PRE_HEADER_SZ);
+	} else if (boot.flags & ACCLAIM_FLAG) {
+		restore_buf(fd, boot.map_addr, ACCLAIM_PRE_HEADER_SZ);
+	}
+
+	// Skip a page for header
+	header_off = lseek(fd, 0, SEEK_CUR);
+	write_zero(fd, header(&boot, page_size));
+
+	// kernel
+	kernel_off = lseek(fd, 0, SEEK_CUR);
+	if (boot.flags & MTK_KERNEL) {
+		// Skip MTK header
+		write_zero(fd, 512);
+	}
+	if (access(KERNEL_FILE, R_OK) == 0) {
+		if (COMPRESSED(boot.k_fmt)) {
+			size_t raw_size;
+			void *kernel_raw;
+			mmap_ro(KERNEL_FILE, &kernel_raw, &raw_size);
+			lheader(&boot, kernel_size, = comp(boot.k_fmt, fd, kernel_raw, raw_size));
+			munmap(kernel_raw, raw_size);
+		} else {
+			lheader(&boot, kernel_size, = restore(KERNEL_FILE, fd));
+		}
+	}
+
+	// dtb
+	if (access(DTB_FILE, R_OK) == 0) {
+		lheader(&boot, kernel_size, += restore(DTB_FILE, fd));
+	}
+	file_align();
+
+	// ramdisk
+	ramdisk_off = lseek(fd, 0, SEEK_CUR);
+	if (boot.flags & MTK_RAMDISK) {
+		// Skip MTK header
+		write_zero(fd, 512);
+	}
+	if (access(RAMDISK_FILE, R_OK) == 0) {
+		if (COMPRESSED(boot.r_fmt)) {
+			size_t cpio_size;
+			void *cpio;
+			mmap_ro(RAMDISK_FILE, &cpio, &cpio_size);
+			lheader(&boot, ramdisk_size, = comp(boot.r_fmt, fd, cpio, cpio_size));
+			munmap(cpio, cpio_size);
+		} else {
+			lheader(&boot, ramdisk_size, = restore(RAMDISK_FILE, fd));
+		}
+		file_align();
+	}
+
+	// second
+	second_off = lseek(fd, 0, SEEK_CUR);
+	if (access(SECOND_FILE, R_OK) == 0) {
+		lheader(&boot, second_size, = restore(SECOND_FILE, fd));
+		file_align();
+	}
+
+	// extra
+	extra_off = lseek(fd, 0, SEEK_CUR);
+	if (access(EXTRA_FILE, R_OK) == 0) {
+		lheader(&boot, extra_size, = restore(EXTRA_FILE, fd));
+		file_align();
+	}
+
+	// Append tail info
+	if (boot.flags & SEANDROID_FLAG) {
+		restore_buf(fd, SEANDROID_MAGIC "\xFF\xFF\xFF\xFF", 20);
+	}
+	if (boot.flags & LG_BUMP_FLAG) {
+		restore_buf(fd, LG_BUMP_MAGIC, 16);
+	}
+
+	close(fd);
+
+	// Map output image as rw
+	munmap(boot.map_addr, boot.map_size);
+	mmap_rw(out_image, &boot.map_addr, &boot.map_size);
+
+	// MTK headers
+	if (boot.flags & MTK_KERNEL) {
+		boot.k_hdr->size = header(&boot, kernel_size);
+		lheader(&boot, kernel_size, += 512);
+		memcpy(boot.map_addr + kernel_off, boot.k_hdr, sizeof(mtk_hdr));
+	}
+	if (boot.flags & MTK_RAMDISK) {
+		boot.r_hdr->size = header(&boot, ramdisk_size);
+		lheader(&boot, ramdisk_size, += 512);
+		memcpy(boot.map_addr + ramdisk_off, boot.r_hdr, sizeof(mtk_hdr));
+	}
+
+	// Update checksum
+	HASH_CTX ctx;
+	(boot.flags & SHA256_FLAG) ? SHA256_init(&ctx) : SHA_init(&ctx);
+	uint32_t size = header(&boot, kernel_size);
+	HASH_update(&ctx, boot.map_addr + kernel_off, size);
+	HASH_update(&ctx, &size, sizeof(size));
+	size = header(&boot, ramdisk_size);
+	HASH_update(&ctx, boot.map_addr + ramdisk_off, size);
+	HASH_update(&ctx, &size, sizeof(size));
+	size = header(&boot, second_size);
+	HASH_update(&ctx, boot.map_addr + second_off, size);
+	HASH_update(&ctx, &size, sizeof(size));
+	size = header(&boot, extra_size);
+	if (size) {
+		HASH_update(&ctx, boot.map_addr + extra_off, size);
+		HASH_update(&ctx, &size, sizeof(size));
+	}
+	memset(header(&boot, id), 0, 32);
+	memcpy(header(&boot, id), HASH_final(&ctx),
+		   (boot.flags & SHA256_FLAG) ? SHA256_DIGEST_SIZE : SHA_DIGEST_SIZE);
+
+	// Print new image info
+	print_hdr(&boot);
+
+	// Main header
+	memcpy(boot.map_addr + header_off, boot.hdr,
+		   (boot.flags & PXA_FLAG) ? sizeof(pxa_boot_img_hdr) : sizeof(boot_img_hdr));
+
+	if (boot.flags & DHTB_FLAG) {
+		// DHTB header
+		dhtb_hdr *hdr = boot.map_addr;
+		memcpy(hdr, DHTB_MAGIC, 8);
+		hdr->size = boot.map_size - 512;
+		SHA256_hash(boot.map_addr + 512, hdr->size, hdr->checksum);
+	} else if (boot.flags & BLOB_FLAG) {
+		// Blob headers
+		boot.b_hdr->size = boot.map_size - sizeof(blob_hdr);
+		memcpy(boot.map_addr, boot.b_hdr, sizeof(blob_hdr));
+	}
+
+	clean_boot(&boot);
+}

native/jni/magiskboot/bootimg.h

@@ -0,0 +1,169 @@
+#include <stdint.h>
+#include "format.h"
+
+#ifndef _BOOT_IMAGE_H_
+#define _BOOT_IMAGE_H_
+
+typedef struct boot_img_hdr {
+	char magic[8];
+
+	uint32_t kernel_size;  /* size in bytes */
+	uint32_t kernel_addr;  /* physical load addr */
+
+	uint32_t ramdisk_size; /* size in bytes */
+	uint32_t ramdisk_addr; /* physical load addr */
+
+	uint32_t second_size;  /* size in bytes */
+	uint32_t second_addr;  /* physical load addr */
+
+	uint32_t tags_addr;    /* physical addr for kernel tags */
+	uint32_t page_size;    /* flash page size we assume */
+	uint32_t extra_size;   /* extra blob size in bytes */
+
+	/* operating system version and security patch level; for
+	 * version "A.B.C" and patch level "Y-M-D":
+	 * ver = A << 14 | B << 7 | C         (7 bits for each of A, B, C)
+	 * lvl = ((Y - 2000) & 127) << 4 | M  (7 bits for Y, 4 bits for M)
+	 * os_version = ver << 11 | lvl */
+	uint32_t os_version;
+
+	char name[16];         /* asciiz product name */
+	char cmdline[512];
+	char id[32];           /* timestamp / checksum / sha1 / etc */
+
+	/* Supplemental command line data; kept here to maintain
+	 * binary compatibility with older versions of mkbootimg */
+	char extra_cmdline[1024];
+} __attribute__((packed)) boot_img_hdr ;
+
+typedef struct pxa_boot_img_hdr {
+	char magic[8];
+
+	uint32_t kernel_size;  /* size in bytes */
+	uint32_t kernel_addr;  /* physical load addr */
+
+	uint32_t ramdisk_size; /* size in bytes */
+	uint32_t ramdisk_addr; /* physical load addr */
+
+	uint32_t second_size;  /* size in bytes */
+	uint32_t second_addr;  /* physical load addr */
+
+	uint32_t extra_size;   /* extra blob size in bytes */
+	uint32_t unknown;      /* unknown value */
+	uint32_t tags_addr;    /* physical addr for kernel tags */
+	uint32_t page_size;    /* flash page size we assume */
+
+	char name[24];         /* asciiz product name */
+	char cmdline[512];
+	char id[32];           /* timestamp / checksum / sha1 / etc */
+
+	/* Supplemental command line data; kept here to maintain
+	 * binary compatibility with older versions of mkbootimg */
+	char extra_cmdline[1024];
+} __attribute__((packed)) pxa_boot_img_hdr;
+
+/*
+** +-----------------+
+** | boot header     | 1 page
+** +-----------------+
+** | kernel          | n pages
+** +-----------------+
+** | ramdisk         | m pages
+** +-----------------+
+** | second stage    | o pages
+** +-----------------+
+** | extra blob      | p pages
+** +-----------------+
+**
+** n = (kernel_size + page_size - 1) / page_size
+** m = (ramdisk_size + page_size - 1) / page_size
+** o = (second_size + page_size - 1) / page_size
+** p = (extra_size + page_size - 1) / page_size
+**
+** 0. all entities are page_size aligned in flash
+** 1. kernel and ramdisk are required (size != 0)
+** 2. second is optional (second_size == 0 -> no second)
+** 3. load each element (kernel, ramdisk, second) at
+**    the specified physical address (kernel_addr, etc)
+** 4. prepare tags at tag_addr.  kernel_args[] is
+**    appended to the kernel commandline in the tags.
+** 5. r0 = 0, r1 = MACHINE_TYPE, r2 = tags_addr
+** 6. if second_size != 0: jump to second_addr
+**    else: jump to kernel_addr
+*/
+
+typedef struct mtk_hdr {
+	uint32_t magic;      /* MTK magic */
+	uint32_t size;       /* Size of the content */
+	char name[32];       /* The type of the header */
+} __attribute__((packed)) mtk_hdr;
+
+typedef struct dhtb_hdr {
+	char magic[8];      /* DHTB magic */
+	char checksum[40];  /* Payload SHA256, whole image + SEANDROIDENFORCE + 0xFFFFFFFF */
+	uint32_t size;      /* Payload size, whole image + SEANDROIDENFORCE + 0xFFFFFFFF */
+} __attribute__((packed)) dhtb_hdr;
+
+typedef struct blob_hdr {
+	char secure_magic[20];  /* "-SIGNED-BY-SIGNBLOB-" */
+	uint32_t datalen;       /* 0x00000000 */
+	uint32_t signature;     /* 0x00000000 */
+	char magic[16];         /* "MSM-RADIO-UPDATE" */
+	uint32_t hdr_version;   /* 0x00010000 */
+	uint32_t hdr_size;      /* Size of header */
+	uint32_t part_offset;   /* Same as size */
+	uint32_t num_parts;     /* Number of partitions */
+	uint32_t unknown[7];    /* All 0x00000000 */
+	char name[4];           /* Name of partition */
+	uint32_t offset;        /* offset in blob where this partition starts */
+	uint32_t size;          /* Size of data */
+	uint32_t version;       /* 0x00000001 */
+} __attribute__((packed)) blob_hdr;
+
+// Flags
+#define MTK_KERNEL      0x0001
+#define MTK_RAMDISK     0x0002
+#define CHROMEOS_FLAG   0x0004
+#define PXA_FLAG        0x0008
+#define DHTB_FLAG       0x0010
+#define SEANDROID_FLAG  0x0020
+#define LG_BUMP_FLAG    0x0040
+#define SHA256_FLAG     0x0080
+#define BLOB_FLAG       0x0100
+#define NOOKHD_FLAG     0x0200
+#define ACCLAIM_FLAG    0x0400
+
+typedef struct boot_img {
+	// Memory map of the whole image
+	void *map_addr;
+	size_t map_size;
+
+	// Headers
+	void *hdr;          /* Either boot_img_hdr or pxa_boot_img_hdr */
+	mtk_hdr *k_hdr;     /* MTK kernel header */
+	mtk_hdr *r_hdr;     /* MTK ramdisk header */
+	blob_hdr *b_hdr;    /* Tegra blob header */
+
+	// Flags to indicate the state of current boot image
+	uint16_t flags;
+
+	// The format of kernel and ramdisk
+	format_t k_fmt;
+	format_t r_fmt;
+
+	// Pointer to dtb that is appended after kernel
+	void *dtb;
+	uint32_t dt_size;
+
+	// Pointer to end of image
+	void *tail;
+	size_t tail_size;
+
+	// Pointers to blocks defined in header
+	void *kernel;
+	void *ramdisk;
+	void *second;
+	void *extra;
+} boot_img;
+
+#endif

native/jni/magiskboot/compress.c

@@ -0,0 +1,512 @@
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/mman.h>
+
+#include <zlib.h>
+#include <lzma.h>
+#include <lz4.h>
+#include <lz4frame.h>
+#include <lz4hc.h>
+#include <bzlib.h>
+
+#include "magiskboot.h"
+#include "logging.h"
+#include "utils.h"
+
+#define CHUNK 0x40000
+
+// Mode: 0 = decode; 1 = encode
+size_t gzip(int mode, int fd, const void *buf, size_t size) {
+	size_t ret = 0, have, total = 0;
+	z_stream strm;
+	unsigned char out[CHUNK];
+
+	strm.zalloc = Z_NULL;
+	strm.zfree = Z_NULL;
+	strm.opaque = Z_NULL;
+
+	switch(mode) {
+		case 0:
+			ret = inflateInit2(&strm, 15 | 16);
+			break;
+		case 1:
+			ret = deflateInit2(&strm, 9, Z_DEFLATED, 15 | 16, 8, Z_DEFAULT_STRATEGY);
+			break;
+	}
+
+	if (ret != Z_OK)
+		LOGE("Unable to init zlib stream\n");
+
+	strm.next_in = (void *) buf;
+	strm.avail_in = size;
+
+	do {
+		strm.avail_out = CHUNK;
+		strm.next_out = out;
+		switch(mode) {
+			case 0:
+				ret = inflate(&strm, Z_FINISH);
+				break;
+			case 1:
+				ret = deflate(&strm, Z_FINISH);
+				break;
+		}
+		if (ret == Z_STREAM_ERROR)
+			LOGE("Error when running gzip\n");
+		have = CHUNK - strm.avail_out;
+		total += xwrite(fd, out, have);
+	} while (strm.avail_out == 0);
+
+	switch(mode) {
+		case 0:
+			inflateEnd(&strm);
+			break;
+		case 1:
+			deflateEnd(&strm);
+			break;
+	}
+	return total;
+}
+
+// Mode: 0 = decode xz/lzma; 1 = encode xz; 2 = encode lzma
+size_t lzma(int mode, int fd, const void *buf, size_t size) {
+	size_t have, total = 0;
+	lzma_ret ret = 0;
+	lzma_stream strm = LZMA_STREAM_INIT;
+	lzma_options_lzma opt;
+	unsigned char out[CHUNK];
+
+	// Initialize preset
+	lzma_lzma_preset(&opt, 9);
+	lzma_filter filters[] = {
+		{ .id = LZMA_FILTER_LZMA2, .options = &opt },
+		{ .id = LZMA_VLI_UNKNOWN, .options = NULL },
+	};
+
+	switch(mode) {
+		case 0:
+			ret = lzma_auto_decoder(&strm, UINT64_MAX, 0);
+			break;
+		case 1:
+			ret = lzma_stream_encoder(&strm, filters, LZMA_CHECK_CRC32);
+			break;
+		case 2:
+			ret = lzma_alone_encoder(&strm, &opt);
+			break;
+	}
+
+
+	if (ret != LZMA_OK)
+		LOGE("Unable to init lzma stream\n");
+
+	strm.next_in = buf;
+	strm.avail_in = size;
+
+	do {
+		strm.avail_out = CHUNK;
+		strm.next_out = out;
+		ret = lzma_code(&strm, LZMA_FINISH);
+		if (ret != LZMA_OK && ret != LZMA_STREAM_END)
+			LOGE("LZMA error %d!\n", ret);
+		have = CHUNK - strm.avail_out;
+		total += xwrite(fd, out, have);
+	} while (strm.avail_out == 0);
+
+	lzma_end(&strm);
+	return total;
+}
+
+// Mode: 0 = decode; 1 = encode
+size_t lz4(int mode, int fd, const void *buf, size_t size) {
+	LZ4F_decompressionContext_t dctx;
+	LZ4F_compressionContext_t cctx;
+	LZ4F_frameInfo_t info;
+
+	size_t blockSize, outCapacity, avail_in, ret = 0, pos = 0, total = 0;
+	size_t have, read;
+	void *out = NULL;
+
+	// Initialize context
+	switch(mode) {
+		case 0:
+			ret = LZ4F_createDecompressionContext(&dctx, LZ4F_VERSION);
+			break;
+		case 1:
+			ret = LZ4F_createCompressionContext(&cctx, LZ4F_VERSION);
+			break;
+	}
+
+	if (LZ4F_isError(ret))
+		LOGE("Context creation error: %s\n", LZ4F_getErrorName(ret));
+
+	// Allocate out buffer
+	blockSize = 1 << 22;
+	switch(mode) {
+		case 0:
+			// Read header
+			read = blockSize;
+			ret = LZ4F_getFrameInfo(dctx, &info, buf, &read);
+			if (LZ4F_isError(ret))
+				LOGE("LZ4F_getFrameInfo error: %s\n", LZ4F_getErrorName(ret));
+			switch (info.blockSizeID) {
+				case LZ4F_default:
+				case LZ4F_max64KB:  outCapacity = 1 << 16; break;
+				case LZ4F_max256KB: outCapacity = 1 << 18; break;
+				case LZ4F_max1MB:   outCapacity = 1 << 20; break;
+				case LZ4F_max4MB:   outCapacity = 1 << 22; break;
+				default:
+					LOGE("Impossible unless more block sizes are allowed\n");
+			}
+			pos += read;
+			break;
+		case 1:
+			outCapacity = LZ4F_compressFrameBound(blockSize, NULL);
+			break;
+	}
+
+	out = xmalloc(outCapacity);
+
+	// Write header
+	if (mode == 1) {
+		LZ4F_preferences_t prefs;
+		memset(&prefs, 0, sizeof(prefs));
+		prefs.autoFlush = 1;
+		prefs.compressionLevel = 9;
+		prefs.frameInfo.blockMode = 1;
+		prefs.frameInfo.blockSizeID = 7;
+		prefs.frameInfo.contentChecksumFlag = 1;
+		have = ret = LZ4F_compressBegin(cctx, out, size, &prefs);
+		if (LZ4F_isError(ret))
+			LOGE("Failed to start compression: error %s\n", LZ4F_getErrorName(ret));
+		total += xwrite(fd, out, have);
+	}
+
+	do {
+		if (pos + blockSize >= size) {
+			avail_in = size - pos;
+		} else {
+			avail_in = blockSize;
+		}
+
+		do {
+			switch(mode) {
+				case 0:
+					have = outCapacity;
+					read = avail_in;
+					ret = LZ4F_decompress(dctx, out, &have, buf + pos, &read, NULL);
+					break;
+				case 1:
+					read = avail_in;
+					have = ret = LZ4F_compressUpdate(cctx, out, outCapacity, buf + pos, avail_in, NULL);
+					break;
+			}
+			if (LZ4F_isError(ret))
+				LOGE("LZ4 coding error: %s\n", LZ4F_getErrorName(ret));
+
+			total += xwrite(fd, out, have);
+			// Update status
+			pos += read;
+			avail_in -= read;
+		} while(avail_in != 0 && ret != 0);
+
+	} while(pos < size && ret != 0);
+
+	switch(mode) {
+		case 0:
+			LZ4F_freeDecompressionContext(dctx);
+			break;
+		case 1:
+			have = ret = LZ4F_compressEnd(cctx, out, outCapacity, NULL);
+			if (LZ4F_isError(ret))
+				LOGE("Failed to end compression: error %s\n", LZ4F_getErrorName(ret));
+
+			total += xwrite(fd, out, have);
+
+			LZ4F_freeCompressionContext(cctx);
+			break;
+	}
+
+	free(out);
+	return total;
+}
+
+// Mode: 0 = decode; 1 = encode
+size_t bzip2(int mode, int fd, const void* buf, size_t size) {
+	size_t ret = 0, have, total = 0;
+	bz_stream strm;
+	char out[CHUNK];
+
+	strm.bzalloc = NULL;
+	strm.bzfree = NULL;
+	strm.opaque = NULL;
+
+	switch(mode) {
+		case 0:
+			ret = BZ2_bzDecompressInit(&strm, 0, 0);
+			break;
+		case 1:
+			ret = BZ2_bzCompressInit(&strm, 9, 0, 0);
+			break;
+	}
+
+	if (ret != BZ_OK)
+		LOGE("Unable to init bzlib stream\n");
+
+	strm.next_in = (void *) buf;
+	strm.avail_in = size;
+
+	do {
+		strm.avail_out = CHUNK;
+		strm.next_out = out;
+		switch(mode) {
+			case 0:
+				ret = BZ2_bzDecompress(&strm);
+				break;
+			case 1:
+				ret = BZ2_bzCompress(&strm, BZ_FINISH);
+				break;
+		}
+		have = CHUNK - strm.avail_out;
+		total += xwrite(fd, out, have);
+	} while (strm.avail_out == 0);
+
+	switch(mode) {
+		case 0:
+			BZ2_bzDecompressEnd(&strm);
+			break;
+		case 1:
+			BZ2_bzCompressEnd(&strm);
+			break;
+	}
+	return total;
+}
+
+#define LZ4_LEGACY_BLOCKSIZE  0x800000
+
+// Mode: 0 = decode; 1 = encode
+size_t lz4_legacy(int mode, int fd, const void* buf, size_t size) {
+	size_t pos = 0;
+	int have;
+	char *out;
+	unsigned block_size, insize, total = 0;
+
+	switch(mode) {
+		case 0:
+			out = xmalloc(LZ4_LEGACY_BLOCKSIZE);
+			// Skip magic
+			pos += 4;
+			break;
+		case 1:
+			out = xmalloc(LZ4_COMPRESSBOUND(LZ4_LEGACY_BLOCKSIZE));
+			// Write magic
+			total += xwrite(fd, "\x02\x21\x4c\x18", 4);
+			break;
+	}
+
+	do {
+		switch(mode) {
+			case 0:
+				// Read block size
+				block_size = *(unsigned *)(buf + pos);
+				pos += 4;
+				if (block_size > LZ4_COMPRESSBOUND(LZ4_LEGACY_BLOCKSIZE))
+					goto done;
+				have = LZ4_decompress_safe(buf + pos, out, block_size, LZ4_LEGACY_BLOCKSIZE);
+				if (have < 0)
+					LOGE("Cannot decode lz4_legacy block\n");
+				pos += block_size;
+				break;
+			case 1:
+				if (pos + LZ4_LEGACY_BLOCKSIZE >= size)
+					insize = size - pos;
+				else
+					insize = LZ4_LEGACY_BLOCKSIZE;
+				have = LZ4_compress_HC(buf + pos, out, insize, LZ4_COMPRESSBOUND(LZ4_LEGACY_BLOCKSIZE), 9);
+				if (have == 0)
+					LOGE("lz4_legacy compression error\n");
+				pos += insize;
+				// Write block size
+				total += xwrite(fd, &have, sizeof(have));
+				break;
+		}
+		// Write main data
+		total += xwrite(fd, out, have);
+	} while(pos < size);
+
+done:
+	if (mode == 1) {
+		// Append original size to output
+		unsigned uncomp = size;
+		xwrite(fd, &uncomp, sizeof(uncomp));
+	}
+	free(out);
+	return total;
+}
+
+long long decomp(format_t type, int to, const void *from, size_t size) {
+	switch (type) {
+		case GZIP:
+			return gzip(0, to, from, size);
+		case XZ:
+			return lzma(0, to, from, size);
+		case LZMA:
+			return lzma(0, to, from, size);
+		case BZIP2:
+			return bzip2(0, to, from, size);
+		case LZ4:
+			return lz4(0, to, from, size);
+		case LZ4_LEGACY:
+			return lz4_legacy(0, to, from, size);
+		default:
+			// Unsupported
+			return -1;
+	}
+}
+
+long long comp(format_t type, int to, const void *from, size_t size) {
+	switch (type) {
+		case GZIP:
+			return gzip(1, to, from, size);
+		case XZ:
+			return lzma(1, to, from, size);
+		case LZMA:
+			return lzma(2, to, from, size);
+		case BZIP2:
+			return bzip2(1, to, from, size);
+		case LZ4:
+			return lz4(1, to, from, size);
+		case LZ4_LEGACY:
+			return lz4_legacy(1, to, from, size);
+		default:
+			// Unsupported
+			return -1;
+	}
+}
+
+/*
+ * Below are utility functions for commandline
+ */
+
+void decomp_file(char *from, const char *to) {
+	int strip = 1;
+	void *file;
+	size_t size = 0;
+	if (strcmp(from, "-") == 0)
+		stream_full_read(STDIN_FILENO, &file, &size);
+	else
+		mmap_ro(from, &file, &size);
+	format_t type = check_fmt(file, size);
+	char *ext;
+	ext = strrchr(from, '.');
+	if (to == NULL)
+		to = from;
+	if (ext != NULL) {
+		// Strip out a matched file extension
+		switch (type) {
+		case GZIP:
+			if (strcmp(ext, ".gz") != 0)
+				strip = 0;
+			break;
+		case XZ:
+			if (strcmp(ext, ".xz") != 0)
+				strip = 0;
+			break;
+		case LZMA:
+			if (strcmp(ext, ".lzma") != 0)
+				strip = 0;
+			break;
+		case BZIP2:
+			if (strcmp(ext, ".bz2") != 0)
+				strip = 0;
+			break;
+		case LZ4_LEGACY:
+		case LZ4:
+			if (strcmp(ext, ".lz4") != 0)
+				strip = 0;
+			break;
+		default:
+			LOGE("Provided file \'%s\' is not a supported archive format\n", from);
+		}
+		if (strip)
+			*ext = '\0';
+	}
+
+	int fd;
+
+	if (strcmp(to, "-") == 0) {
+		fd = STDOUT_FILENO;
+	} else {
+		fd = creat(to, 0644);
+		fprintf(stderr, "Decompressing to [%s]\n", to);
+	}
+
+	decomp(type, fd, file, size);
+	close(fd);
+	if (to == from && ext != NULL) {
+		*ext = '.';
+		unlink(from);
+	}
+	if (strcmp(from, "-") == 0)
+		free(file);
+	else
+		munmap(file, size);
+}
+
+void comp_file(const char *method, const char *from, const char *to) {
+	format_t type;
+	char *ext, dest[PATH_MAX];
+	if (strcmp(method, "gzip") == 0) {
+		type = GZIP;
+		ext = "gz";
+	} else if (strcmp(method, "xz") == 0) {
+		type = XZ;
+		ext = "xz";
+	} else if (strcmp(method, "lzma") == 0) {
+		type = LZMA;
+		ext = "lzma";
+	} else if (strcmp(method, "lz4") == 0) {
+		type = LZ4;
+		ext = "lz4";
+	} else if (strcmp(method, "lz4_legacy") == 0) {
+		type = LZ4_LEGACY;
+		ext = "lz4";
+	} else if (strcmp(method, "bzip2") == 0) {
+		type = BZIP2;
+		ext = "bz2";
+	} else {
+		fprintf(stderr, "Only support following methods: ");
+		for (int i = 0; SUP_LIST[i]; ++i)
+			fprintf(stderr, "%s ", SUP_LIST[i]);
+		fprintf(stderr, "\n");
+		exit(1);
+	}
+	void *file;
+	size_t size;
+	if (strcmp(from, "-") == 0)
+		stream_full_read(STDIN_FILENO, &file, &size);
+	else
+		mmap_ro(from, &file, &size);
+	if (to == NULL) {
+		if (strcmp(from, "-") == 0)
+			strcpy(dest, "-");
+		else
+			snprintf(dest, sizeof(dest), "%s.%s", from, ext);
+	} else
+		strcpy(dest, to);
+	int fd;
+	if (strcmp(dest, "-") == 0) {
+		fd = STDOUT_FILENO;
+	} else {
+		fd = creat(dest, 0644);
+		fprintf(stderr, "Compressing to [%s]\n", dest);
+	}
+	comp(type, fd, file, size);
+	close(fd);
+	if (strcmp(from, "-") == 0)
+		free(file);
+	else
+		munmap(file, size);
+	if (to == NULL)
+		unlink(from);
+}
+

native/jni/magiskboot/dtb.c

@@ -0,0 +1,111 @@
+#include <libfdt.h>
+#include <unistd.h>
+#include <sys/mman.h>
+
+#include "magiskboot.h"
+#include "utils.h"
+
+static void print_props(const void *fdt, int node, int depth) {
+	int prop;
+	fdt_for_each_property_offset(prop, fdt, node) {
+		for (int i = 0; i < depth; ++i) printf("    ");
+		printf("  ");
+		int size;
+		const char *name;
+		const char *value = fdt_getprop_by_offset(fdt, prop, &name, &size);
+		printf("[%s]: [%s]\n", name, value);
+	}
+}
+
+static void print_subnode(const void *fdt, int parent, int depth) {
+	int node;
+	fdt_for_each_subnode(node, fdt, parent) {
+		for (int i = 0; i < depth; ++i) printf("    ");
+		printf("#%d: %s\n", node, fdt_get_name(fdt, node, NULL));
+		print_props(fdt, node, depth);
+		print_subnode(fdt, node, depth + 1);
+	}
+}
+
+static int find_fstab(const void *fdt, int parent) {
+	int node, fstab;
+	fdt_for_each_subnode(node, fdt, parent) {
+		if (strcmp(fdt_get_name(fdt, node, NULL), "fstab") == 0)
+			return node;
+		fstab = find_fstab(fdt, node);
+		if (fstab != -1)
+			return fstab;
+	}
+	return -1;
+}
+
+static void dtb_dump(const char *file) {
+	size_t size ;
+	void *dtb, *fdt;
+	fprintf(stderr, "Loading dtbs from [%s]\n", file);
+	mmap_ro(file, &dtb, &size);
+	// Loop through all the dtbs
+	int dtb_num = 0;
+	for (int i = 0; i < size; ++i) {
+		if (memcmp(dtb + i, DTB_MAGIC, 4) == 0) {
+			fdt = dtb + i;
+			fprintf(stderr, "Dumping dtb.%04d\n", dtb_num++);
+			print_subnode(fdt, 0, 0);
+		}
+	}
+	fprintf(stderr, "\n");
+	munmap(dtb, size);
+	exit(0);
+}
+
+static void dtb_patch(const char *file, int patch) {
+	size_t size ;
+	void *dtb, *fdt;
+	fprintf(stderr, "Loading dtbs from [%s]\n", file);
+	if (patch)
+		mmap_rw(file, &dtb, &size);
+	else
+		mmap_ro(file, &dtb, &size);
+	// Loop through all the dtbs
+	int dtb_num = 0, found = 0;
+	for (int i = 0; i < size; ++i) {
+		if (memcmp(dtb + i, DTB_MAGIC, 4) == 0) {
+			fdt = dtb + i;
+			int fstab = find_fstab(fdt, 0);
+			if (fstab > 0) {
+				fprintf(stderr, "Found fstab in dtb.%04d\n", dtb_num++);
+				int block;
+				fdt_for_each_subnode(block, fdt, fstab) {
+					fprintf(stderr, "Found block [%s] in fstab\n", fdt_get_name(fdt, block, NULL));
+					uint32_t value_size;
+					void *value = (void *) fdt_getprop(fdt, block, "fsmgr_flags", &value_size);
+					if (patch) {
+						void *dup = xmalloc(value_size);
+						memcpy(dup, value, value_size);
+						memset(value, 0, value_size);
+						found |= patch_verity(&dup, &value_size, 1);
+						memcpy(value, dup, value_size);
+						free(dup);
+					} else {
+						found |= patch_verity(&value, &value_size, 0);
+					}
+				}
+			}
+		}
+	}
+	munmap(dtb, size);
+	exit(!found);
+}
+
+int dtb_commands(const char *cmd, int argc, char *argv[]) {
+	if (argc == 0) return 1;
+	if (strcmp(cmd, "dump") == 0)
+		dtb_dump(argv[0]);
+	else if (strcmp(cmd, "patch") == 0)
+		dtb_patch(argv[0], 1);
+	else if (strcmp(cmd, "test") == 0)
+		dtb_patch(argv[0], 0);
+	return 0;
+}
+
+

native/jni/magiskboot/format.c

@@ -0,0 +1,85 @@
+#include <string.h>
+
+#include "bootimg.h"
+#include "format.h"
+
+#define MATCH(s) (len >= (sizeof(s) - 1) && memcmp(buf, s, sizeof(s) - 1) == 0)
+
+format_t check_fmt(const void *buf, size_t len) {
+	if (MATCH(CHROMEOS_MAGIC)) {
+		return CHROMEOS;
+	} else if (MATCH(BOOT_MAGIC)) {
+		return AOSP;
+	} else if (MATCH(ELF32_MAGIC)) {
+		return ELF32;
+	} else if (MATCH(ELF64_MAGIC)) {
+		return ELF64;
+	} else if (MATCH(GZIP_MAGIC)) {
+		return GZIP;
+	} else if (MATCH(LZOP_MAGIC)) {
+		return LZOP;
+	} else if (MATCH(XZ_MAGIC)) {
+		return XZ;
+	} else if (len >= 13 && memcmp(buf, "\x5d\x00\x00", 3) == 0
+			&& (((char *)buf)[12] == '\xff' || ((char *)buf)[12] == '\x00')) {
+		return LZMA;
+	} else if (MATCH(BZIP_MAGIC)) {
+		return BZIP2;
+	} else if (MATCH(LZ4_MAGIC)) {
+		return LZ4;
+	} else if (MATCH(LZ4_LEG_MAGIC)) {
+		return LZ4_LEGACY;
+	} else if (MATCH(MTK_MAGIC)) {
+		return MTK;
+	} else if (MATCH(DTB_MAGIC)) {
+		return DTB;
+	} else if (MATCH(DHTB_MAGIC)) {
+		return DHTB;
+	} else if (MATCH(TEGRABLOB_MAGIC)) {
+		return BLOB;
+	} else {
+		return UNKNOWN;
+	}
+}
+
+void get_fmt_name(format_t fmt, char *name) {
+	char *s;
+	switch (fmt) {
+		case CHROMEOS:
+			s = "chromeos";
+			break;
+		case AOSP:
+			s = "aosp";
+			break;
+		case GZIP:
+			s = "gzip";
+			break;
+		case LZOP:
+			s = "lzop";
+			break;
+		case XZ:
+			s = "xz";
+			break;
+		case LZMA:
+			s = "lzma";
+			break;
+		case BZIP2:
+			s = "bzip2";
+			break;
+		case LZ4:
+			s = "lz4";
+			break;
+		case LZ4_LEGACY:
+			s = "lz4_legacy";
+			break;
+		case MTK:
+			s = "mtk";
+			break;
+		case DTB:
+			s = "dtb";
+			break;
+		default:
+			s = "raw";
+	}
+	strcpy(name, s);
+}

native/jni/magiskboot/format.h

@@ -0,0 +1,53 @@
+#ifndef _FORMAT_H_
+#define _FORMAT_H_
+
+typedef enum {
+	UNKNOWN,
+	CHROMEOS,
+	AOSP,
+	ELF32,
+	ELF64,
+	GZIP,
+	LZOP,
+	XZ,
+	LZMA,
+	BZIP2,
+	LZ4,
+	LZ4_LEGACY,
+	MTK,
+	DTB,
+	DHTB,
+	BLOB
+} format_t;
+
+#define COMPRESSED(fmt)  (fmt >= GZIP && fmt <= LZ4_LEGACY)
+
+#define BOOT_MAGIC      "ANDROID!"
+#define CHROMEOS_MAGIC  "CHROMEOS"
+#define ELF32_MAGIC     "\x7f""ELF\x01"
+#define ELF64_MAGIC     "\x7f""ELF\x02"
+#define GZIP_MAGIC      "\x1f\x8b\x08\x00"
+#define LZOP_MAGIC      "\x89\x4c\x5a\x4f\x00\x0d\x0a\x1a\x0a"
+#define XZ_MAGIC        "\xfd""7zXZ\x00"
+#define BZIP_MAGIC      "BZh"
+#define LZ4_MAGIC       "\x04\x22\x4d\x18"
+#define LZ4_LEG_MAGIC   "\x02\x21\x4c\x18"
+#define MTK_MAGIC       "\x88\x16\x88\x58"
+#define DTB_MAGIC       "\xd0\x0d\xfe\xed"
+#define LG_BUMP_MAGIC   "\x41\xa9\xe4\x67\x74\x4d\x1d\x1b\xa4\x29\xf2\xec\xea\x65\x52\x79"
+#define DHTB_MAGIC      "\x44\x48\x54\x42\x01\x00\x00\x00"
+#define SEANDROID_MAGIC "SEANDROIDENFORCE"
+#define TEGRABLOB_MAGIC "-SIGNED-BY-SIGNBLOB-"
+#define NOOKHD_MAGIC    "Green Loader"
+#define NOOKHD_NEW_MAGIC "eMMC boot.img+secondloader"
+#define NOOKHD_PRE_HEADER_SZ 1048576
+#define ACCLAIM_MAGIC   "BauwksBoot"
+#define ACCLAIM_PRE_HEADER_SZ 262144
+
+#define SUP_LIST      ((char *[]) { "gzip", "xz", "lzma", "bzip2", "lz4", "lz4_legacy", NULL })
+#define SUP_EXT_LIST  ((char *[]) { "gz", "xz", "lzma", "bz2", "lz4", "lz4", NULL })
+
+format_t check_fmt(const void *buf, size_t len);
+void get_fmt_name(format_t fmt, char *name);
+
+#endif

native/jni/magiskboot/hexpatch.c

@@ -0,0 +1,38 @@
+#include <stdlib.h>
+#include <ctype.h>
+#include <string.h>
+#include <sys/mman.h>
+
+#include "magiskboot.h"
+#include "utils.h"
+
+static void hex2byte(const char *hex, unsigned char *str) {
+	char high, low;
+	for (int i = 0, length = strlen(hex); i < length; i += 2) {
+		high = toupper(hex[i]) - '0';
+		low = toupper(hex[i + 1]) - '0';
+		str[i / 2] = ((high > 9 ? high - 7 : high) << 4) + (low > 9 ? low - 7 : low);
+	}
+}
+
+void hexpatch(const char *image, const char *from, const char *to) {
+	int patternsize = strlen(from) / 2, patchsize = strlen(to) / 2;
+	size_t filesize;
+	void *file, *pattern, *patch;
+	mmap_rw(image, &file, &filesize);
+	pattern = xmalloc(patternsize);
+	patch = xmalloc(patchsize);
+	hex2byte(from, pattern);
+	hex2byte(to, patch);
+	for (size_t i = 0; filesize > 0 && i < filesize - patternsize; ++i) {
+		if (memcmp(file + i, pattern, patternsize) == 0) {
+			fprintf(stderr, "Patch @ %08X [%s]->[%s]\n", (unsigned) i, from, to);
+			memset(file + i, 0, patternsize);
+			memcpy(file + i, patch, patchsize);
+			i += patternsize - 1;
+		}
+	}
+	munmap(file, filesize);
+	free(pattern);
+	free(patch);
+}

native/jni/magiskboot/magiskboot.h

@@ -0,0 +1,35 @@
+#ifndef _MAGISKBOOT_H_
+#define _MAGISKBOOT_H_
+
+#include <sys/types.h>
+
+#include "logging.h"
+#include "bootimg.h"
+
+#define KERNEL_FILE     "kernel"
+#define RAMDISK_FILE    "ramdisk.cpio"
+#define SECOND_FILE     "second"
+#define EXTRA_FILE      "extra"
+#define DTB_FILE        "dtb"
+#define NEW_BOOT        "new-boot.img"
+
+// Main entries
+int unpack(const char *image);
+void repack(const char* orig_image, const char* out_image);
+void hexpatch(const char *image, const char *from, const char *to);
+int parse_img(const char *image, boot_img *boot);
+int cpio_commands(int argc, char *argv[]);
+void comp_file(const char *method, const char *from, const char *to);
+void decomp_file(char *from, const char *to);
+int dtb_commands(const char *cmd, int argc, char *argv[]);
+
+// Compressions
+size_t gzip(int mode, int fd, const void *buf, size_t size);
+size_t lzma(int mode, int fd, const void *buf, size_t size);
+size_t lz4(int mode, int fd, const void *buf, size_t size);
+size_t bzip2(int mode, int fd, const void *buf, size_t size);
+size_t lz4_legacy(int mode, int fd, const void *buf, size_t size);
+long long comp(format_t type, int to, const void *from, size_t size);
+long long decomp(format_t type, int to, const void *from, size_t size);
+
+#endif

native/jni/magiskboot/main.c

@@ -0,0 +1,168 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/mman.h>
+
+#include "magiskboot.h"
+#include "utils.h"
+#include "mincrypt/sha.h"
+
+/********************
+  Patch Boot Image
+*********************/
+
+static void usage(char *arg0) {
+	fprintf(stderr,
+		"Usage: %s <action> [args...]\n"
+		"\n"
+		"Supported actions:\n"
+		" --parse <bootimg>\n"
+		"  Parse <bootimg> only, do not unpack. Return values: \n"
+		"    0:OK   1:error   2:insufficient boot partition size\n"
+		"    3:chromeos   4:ELF32   5:ELF64\n"
+		"\n"
+		" --unpack <bootimg>\n"
+		"  Unpack <bootimg> to kernel, ramdisk.cpio, (second), (dtb), (extra) into\n"
+		"  the current directory. Return value is the same as --parse\n"
+		"\n"
+		" --repack <origbootimg> [outbootimg]\n"
+		"  Repack kernel, ramdisk.cpio[.ext], second, dtb... from current directory\n"
+		"  to [outbootimg], or new-boot.img if not specified.\n"
+		"  It will compress ramdisk.cpio with the same method used in <origbootimg>,\n"
+		"  or attempt to find ramdisk.cpio.[ext], and repack directly with the\n"
+		"  compressed ramdisk file\n"
+		"\n"
+		" --hexpatch <file> <hexpattern1> <hexpattern2>\n"
+		"  Search <hexpattern1> in <file>, and replace with <hexpattern2>\n"
+		"\n"
+		" --cpio <incpio> [commands...]\n"
+		"  Do cpio commands to <incpio> (modifications are done directly)\n"
+		"  Each command is a single argument, use quotes if necessary\n"
+		"  Supported commands:\n"
+		"    rm [-r] ENTRY\n"
+		"      Remove ENTRY, specify [-r] to remove recursively\n"
+		"    mkdir MODE ENTRY\n"
+		"      Create directory ENTRY in permissions MODE\n"
+		"    ln TARGET ENTRY\n"
+		"      Create a symlink to TARGET with the name ENTRY\n"
+		"    mv SOURCE DEST\n"
+		"      Move SOURCE to DEST\n"
+		"    add MODE ENTRY INFILE\n"
+		"      Add INFILE as ENTRY in permissions MODE; replaces ENTRY if exists\n"
+		"    extract [ENTRY OUT]\n"
+		"      Extract ENTRY to OUT, or extract all entries to current directory\n"
+		"    test\n"
+		"      Test the current cpio's patch status\n"
+		"      Return value: 0/stock 1/Magisk 2/other (phh, SuperSU, Xposed)\n"
+		"    patch KEEPVERITY KEEPFORCEENCRYPT\n"
+		"      Ramdisk patches. KEEP**** are boolean values\n"
+		"    backup ORIG [SHA1]\n"
+		"      Create ramdisk backups from ORIG\n"
+		"      SHA1 of stock boot image is optional\n"
+		"    restore\n"
+		"      Restore ramdisk from ramdisk backup stored within incpio\n"
+		"    magisk ORIG HIGHCOMP KEEPVERITY KEEPFORCEENCRYPT [SHA1]\n"
+		"      Do Magisk patches and backups all in one step\n"
+		"      Create ramdisk backups from ORIG\n"
+		"      HIGHCOMP, KEEP**** are boolean values\n"
+		"      SHA1 of stock boot image is optional\n"
+		"    sha1\n"
+		"      Print stock boot SHA1 if previously stored\n"
+		"\n"
+		" --dtb-<cmd> <dtb>\n"
+		"  Do dtb related cmds to <dtb> (modifications are done directly)\n"
+		"  Supported commands:\n"
+		"    dump\n"
+		"      Dump all contents from dtb for debugging\n"
+		"    test\n"
+		"      Check if fstab has verity/avb flags\n"
+		"      Return value: 0/no flags 1/flag exists\n"
+		"    patch\n"
+		"      Search for fstab and remove verity/avb\n"
+		"\n"
+		" --compress[=method] <infile> [outfile]\n"
+		"  Compress <infile> with [method] (default: gzip), optionally to [outfile]\n"
+		"  <infile>/[outfile] can be '-' to be STDIN/STDOUT\n"
+		"  Supported methods: "
+	, arg0);
+	for (int i = 0; SUP_LIST[i]; ++i)
+		fprintf(stderr, "%s ", SUP_LIST[i]);
+	fprintf(stderr,
+		"\n\n"
+		" --decompress <infile> [outfile]\n"
+		"  Detect method and decompress <infile>, optionally to [outfile]\n"
+		"  <infile>/[outfile] can be '-' to be STDIN/STDOUT\n"
+		"  Supported methods: ");
+	for (int i = 0; SUP_LIST[i]; ++i)
+		fprintf(stderr, "%s ", SUP_LIST[i]);
+	fprintf(stderr,
+		"\n\n"
+		" --sha1 <file>\n"
+		"  Print the SHA1 checksum for <file>\n"
+		"\n"
+		" --cleanup\n"
+		"  Cleanup the current working directory\n"
+		"\n");
+
+	exit(1);
+}
+
+int main(int argc, char *argv[]) {
+	fprintf(stderr, "MagiskBoot v" xstr(MAGISK_VERSION) "(" xstr(MAGISK_VER_CODE) ") (by topjohnwu) - Boot Image Modification Tool\n");
+
+	umask(0);
+	if (argc > 1 && strcmp(argv[1], "--cleanup") == 0) {
+		fprintf(stderr, "Cleaning up...\n");
+		char name[PATH_MAX];
+		unlink(KERNEL_FILE);
+		unlink(RAMDISK_FILE);
+		unlink(RAMDISK_FILE ".raw");
+		unlink(SECOND_FILE);
+		unlink(DTB_FILE);
+		unlink(EXTRA_FILE);
+		for (int i = 0; SUP_EXT_LIST[i]; ++i) {
+			sprintf(name, "%s.%s", RAMDISK_FILE, SUP_EXT_LIST[i]);
+			unlink(name);
+		}
+	} else if (argc > 2 && strcmp(argv[1], "--sha1") == 0) {
+		uint8_t sha1[SHA_DIGEST_SIZE];
+		void *buf;
+		size_t size;
+		mmap_ro(argv[2], &buf, &size);
+		SHA_hash(buf, size, sha1);
+		for (int i = 0; i < SHA_DIGEST_SIZE; ++i)
+			printf("%02x", sha1[i]);
+		printf("\n");
+		munmap(buf, size);
+	} else if (argc > 2 && strcmp(argv[1], "--parse") == 0) {
+		boot_img boot;
+		return parse_img(argv[2], &boot);
+	} else if (argc > 2 && strcmp(argv[1], "--unpack") == 0) {
+		return unpack(argv[2]);
+	} else if (argc > 2 && strcmp(argv[1], "--repack") == 0) {
+		repack(argv[2], argc > 3 ? argv[3] : NEW_BOOT);
+	} else if (argc > 2 && strcmp(argv[1], "--decompress") == 0) {
+		decomp_file(argv[2], argc > 3 ? argv[3] : NULL);
+	} else if (argc > 2 && strncmp(argv[1], "--compress", 10) == 0) {
+		char *method;
+		method = strchr(argv[1], '=');
+		if (method == NULL) method = "gzip";
+		else method++;
+		comp_file(method, argv[2], argc > 3 ? argv[3] : NULL);
+	} else if (argc > 4 && strcmp(argv[1], "--hexpatch") == 0) {
+		hexpatch(argv[2], argv[3], argv[4]);
+	} else if (argc > 2 && strcmp(argv[1], "--cpio") == 0) {
+		if (cpio_commands(argc - 2, argv + 2)) usage(argv[0]);
+	} else if (argc > 2 && strncmp(argv[1], "--dtb", 5) == 0) {
+		char *cmd = argv[1] + 5;
+		if (*cmd == '\0') usage(argv[0]);
+		else ++cmd;
+		if (dtb_commands(cmd, argc - 2, argv + 2))
+			usage(argv[0]);
+	} else {
+		usage(argv[0]);
+	}
+
+	return 0;
+}

native/jni/magiskboot/ramdisk.c

@@ -0,0 +1,339 @@
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/stat.h>
+#include <utils.h>
+#include <sys/mman.h>
+#include <fcntl.h>
+
+#include "magiskboot.h"
+#include "cpio.h"
+
+static void cpio_patch(struct vector *v, int keepverity, int keepforceencrypt) {
+	fprintf(stderr, "Patch with flag KEEPVERITY=[%s] KEEPFORCEENCRYPT=[%s]\n",
+			keepverity ? "true" : "false", keepforceencrypt ? "true" : "false");
+	cpio_entry *e;
+	vec_for_each(v, e) {
+		if (!e) continue;
+		if (!keepverity) {
+			if (strncmp(e->filename, ".backup", 7) && strstr(e->filename, "fstab") && S_ISREG(e->mode)) {
+				patch_verity(&e->data, &e->filesize, 1);
+			} else if (strcmp(e->filename, "verity_key") == 0) {
+				fprintf(stderr, "Remove [verity_key]\n");
+				cpio_free(e);
+				vec_cur(v) = NULL;
+				continue;
+			}
+		}
+		if (!keepforceencrypt) {
+			if (strstr(e->filename, "fstab") != NULL && S_ISREG(e->mode)) {
+				patch_encryption(&e->data, &e->filesize);
+			}
+		}
+	}
+}
+
+#define STOCK_BOOT      0x0
+#define MAGISK_PATCH    0x1
+#define HIGH_COMPRESS   0x2
+#define OTHER_PATCH     0x3
+
+static int cpio_test(struct vector *v) {
+	const char *OTHER_LIST[] = { "sbin/launch_daemonsu.sh", "sbin/su", "init.xposed.rc", "boot/sbin/launch_daemonsu.sh", NULL };
+	const char *MAGISK_LIST[] = { ".backup/.magisk", "init.magisk.rc", "overlay/init.magisk.rc", NULL };
+
+	for (int i = 0; OTHER_LIST[i]; ++i)
+		if (cpio_find(v, OTHER_LIST[i]) >= 0)
+			return OTHER_PATCH;
+
+	if (cpio_find(v, "ramdisk.cpio.xz") >= 0)
+		return HIGH_COMPRESS;
+
+	for (int i = 0; MAGISK_LIST[i]; ++i)
+		if (cpio_find(v, MAGISK_LIST[i]) >= 0)
+			return MAGISK_PATCH;
+
+	return STOCK_BOOT;
+}
+
+static char *cpio_sha1(struct vector *v) {
+	cpio_entry *e;
+	char sha1[41];
+	vec_for_each(v, e) {
+		if (!e) continue;
+		if (strcmp(e->filename, "init.magisk.rc") == 0
+			|| strcmp(e->filename, "overlay/init.magisk.rc") == 0) {
+			for (void *pos = e->data; pos < e->data + e->filesize; pos = strchr(pos + 1, '\n') + 1) {
+				if (memcmp(pos, "# STOCKSHA1=", 12) == 0) {
+					pos += 12;
+					memcpy(sha1, pos, 40);
+					sha1[40] = '\0';
+					return strdup(sha1);
+				}
+			}
+		} else if (strcmp(e->filename, ".backup/.sha1") == 0) {
+			return e->data;
+		}
+	}
+	return NULL;
+}
+
+static void cpio_backup(struct vector *v, struct vector *bak, const char *orig, const char *sha1) {
+	struct vector o_body, *o = &o_body;
+	cpio_entry *m, *n, *rem, *cksm;
+	char buf[PATH_MAX];
+	int res, backup;
+
+	m = xcalloc(sizeof(*m), 1);
+	m->filename = strdup(".backup");
+	m->mode = S_IFDIR;
+	vec_push_back(bak, m);
+
+	rem = xcalloc(sizeof(*rem), 1);
+	rem->filename = strdup(".backup/.rmlist");
+	rem->mode = S_IFREG;
+
+	if (sha1) {
+		fprintf(stderr, "Save SHA1: [%s] -> [.backup/.sha1]\n", sha1);
+		cksm = xcalloc(sizeof(*cksm), 1);
+		vec_push_back(bak, cksm);
+		cksm->filename = strdup(".backup/.sha1");
+		cksm->mode = S_IFREG;
+		cksm->data = strdup(sha1);
+		cksm->filesize = strlen(sha1) + 1;
+	}
+
+	vec_init(o);
+	parse_cpio(o, orig);
+	// Remove possible backups in original ramdisk
+	cpio_rm(o, 1, ".backup");
+	cpio_rm(v, 1, ".backup");
+
+	// Sort both vectors before comparing
+	vec_sort(o, cpio_cmp);
+	vec_sort(v, cpio_cmp);
+
+	// Start comparing
+	size_t i = 0, j = 0;
+	while(i != vec_size(o) || j != vec_size(v)) {
+		backup = 0;
+		if (i != vec_size(o) && j != vec_size(v)) {
+			m = vec_entry(o)[i];
+			n = vec_entry(v)[j];
+			res = strcmp(m->filename, n->filename);
+		} else if (i == vec_size(o)) {
+			n = vec_entry(v)[j];
+			res = 1;
+		} else if (j == vec_size(v)) {
+			m = vec_entry(o)[i];
+			res = -1;
+		}
+
+		if (res < 0) {
+			// Something is missing in new ramdisk, backup!
+			++i;
+			backup = 1;
+			fprintf(stderr, "Backup missing entry: ");
+		} else if (res == 0) {
+			++i; ++j;
+			if (m->filesize == n->filesize && memcmp(m->data, n->data, m->filesize) == 0)
+				continue;
+			// Not the same!
+			backup = 1;
+			fprintf(stderr, "Backup mismatch entry: ");
+		} else {
+			// Something new in ramdisk, record in rem
+			++j;
+			rem->data = xrealloc(rem->data, rem->filesize + strlen(n->filename) + 1);
+			memcpy(rem->data + rem->filesize, n->filename, strlen(n->filename) + 1);
+			rem->filesize += strlen(n->filename) + 1;
+			fprintf(stderr, "Record new entry: [%s] -> [.backup/.rmlist]\n", n->filename);
+		}
+		if (backup) {
+			sprintf(buf, ".backup/%s", m->filename);
+			fprintf(stderr, "[%s] -> [%s]\n", m->filename, buf);
+			free(m->filename);
+			m->filename = strdup(buf);
+			vec_push_back(bak, m);
+			// NULL the original entry, so it won't be freed
+			vec_entry(o)[i - 1] = NULL;
+		}
+	}
+
+	if (rem->filesize)
+		vec_push_back(bak, rem);
+	else
+		cpio_free(rem);
+
+	// Cleanup
+	cpio_vec_destroy(o);
+}
+
+static void cpio_restore(struct vector *v) {
+	cpio_entry *e;
+	vec_for_each(v, e) {
+		if (!e) continue;
+		if (strncmp(e->filename, ".backup", 7) == 0) {
+			if (e->filename[7] == '\0') continue;
+			if (e->filename[8] == '.') {
+				if (strcmp(e->filename, ".backup/.rmlist") == 0) {
+					for (int pos = 0; pos < e->filesize; pos += strlen(e->data + pos) + 1)
+						cpio_rm(v, 0, e->data + pos);
+				}
+				continue;
+			} else {
+				fprintf(stderr, "Restore [%s] -> [%s]\n", e->filename, e->filename + 8);
+				vec_cur(v) = NULL;
+				char *new_name = strdup(e->filename + 8);
+				free(e->filename);
+				e->filename = new_name;
+				cpio_vec_insert(v, e);
+			}
+		}
+	}
+	// Some known stuff we can remove
+	cpio_rm(v, 1, ".backup");
+	cpio_rm(v, 1, "overlay");
+	cpio_rm(v, 0, "sbin/magic_mask.sh");
+	cpio_rm(v, 0, "init.magisk.rc");
+	cpio_rm(v, 0, "magisk");
+	cpio_rm(v, 0, "ramdisk-recovery.xz");
+}
+
+static void restore_high_compress(struct vector *v, const char *incpio) {
+	// Check if the ramdisk is in high compression mode
+	if (cpio_extract(v, "ramdisk.cpio.xz", incpio) == 0) {
+		void *xz;
+		size_t size;
+		full_read(incpio, &xz, &size);
+		int fd = creat(incpio, 0644);
+		lzma(0, fd, xz, size);
+		close(fd);
+		free(xz);
+		cpio_rm(v, 0, "ramdisk.cpio.xz");
+		cpio_rm(v, 0, "init");
+		struct vector vv;
+		vec_init(&vv);
+		parse_cpio(&vv, incpio);
+		cpio_entry *e;
+		vec_for_each(&vv, e)
+			vec_push_back(v, e);
+		vec_destroy(&vv);
+	}
+}
+
+static void enable_high_compress(struct vector *v, struct vector *b, const char *incpio) {
+	cpio_entry *init, *magiskinit;
+
+	// Swap magiskinit with original init
+	int i = cpio_find(b, ".backup/init"), j = cpio_find(v, "init");
+	init = vec_entry(b)[i];
+	magiskinit = vec_entry(v)[j];
+	free(init->filename);
+	init->filename = strdup("init");
+	vec_entry(v)[j] = init;
+	vec_entry(b)[i] = NULL;
+
+	dump_cpio(v, incpio);
+	cpio_vec_destroy(v);
+	void *cpio;
+	size_t size;
+	full_read(incpio, &cpio, &size);
+	int fd = creat(incpio, 0644);
+	lzma(1, fd, cpio, size);
+	close(fd);
+	free(cpio);
+	vec_init(v);
+	vec_push_back(v, magiskinit);
+	cpio_add(v, 0, "ramdisk.cpio.xz", incpio);
+}
+
+int cpio_commands(int argc, char *argv[]) {
+	char *incpio = argv[0];
+	++argv;
+	--argc;
+
+	struct vector v;
+	vec_init(&v);
+	parse_cpio(&v, incpio);
+
+	int cmdc;
+	char *cmdv[6];
+
+	while (argc) {
+		cmdc = 0;
+		for (char *tok = strtok(argv[0], " "); tok; tok = strtok(NULL, " "))
+			cmdv[cmdc++] = tok;
+
+		if (strcmp(cmdv[0], "test") == 0) {
+			exit(cpio_test(&v));
+		} else if (strcmp(cmdv[0], "restore") == 0) {
+			restore_high_compress(&v, incpio);
+			cpio_restore(&v);
+		} else if (strcmp(cmdv[0], "sha1") == 0) {
+			char *sha1 = cpio_sha1(&v);
+			if (sha1)
+				printf("%s\n", sha1);
+			return 0;
+		} else if (cmdc >= 2 && strcmp(cmdv[0], "backup") == 0) {
+			struct vector back;
+			vec_init(&back);
+			cpio_backup(&v, &back, cmdv[1], cmdc > 2 ? cmdv[2] : NULL);
+			cpio_entry *e;
+			vec_for_each(&back, e)
+				if (e) vec_push_back(&v, e);
+			vec_destroy(&back);
+		} else if (cmdc >= 5 && strcmp(cmdv[0], "magisk") == 0) {
+			cpio_patch(&v, strcmp(cmdv[3], "true") == 0, strcmp(cmdv[4], "true") == 0);
+
+			struct vector back;
+			vec_init(&back);
+			cpio_backup(&v, &back, cmdv[1], cmdc > 5 ? cmdv[5] : NULL);
+
+			cpio_entry *e;
+			e = xcalloc(sizeof(*e), 1);
+			e->filename = strdup(".backup/.magisk");
+			e->mode = S_IFREG;
+			e->data = xmalloc(50);
+			snprintf(e->data, 50, "KEEPVERITY=%s\nKEEPFORCEENCRYPT=%s\n", cmdv[3], cmdv[4]);
+			e->filesize = strlen(e->data) + 1;
+			vec_push_back(&back, e);
+
+			// Enable high compression mode
+			if (strcmp(cmdv[2], "true") == 0)
+				enable_high_compress(&v, &back, incpio);
+
+			vec_for_each(&back, e)
+				if (e) vec_push_back(&v, e);
+			vec_destroy(&back);
+		} else if (cmdc >= 2 && strcmp(cmdv[0], "rm") == 0) {
+			int recur = cmdc > 2 && strcmp(cmdv[1], "-r") == 0;
+			cpio_rm(&v, recur, cmdv[1 + recur]);
+		} else if (cmdc == 3 && strcmp(cmdv[0], "mv") == 0) {
+			cpio_mv(&v, cmdv[1], cmdv[2]);
+		} else if (cmdc == 3 && strcmp(cmdv[0], "patch") == 0) {
+			cpio_patch(&v, strcmp(cmdv[1], "true") == 0, strcmp(cmdv[2], "true") == 0);
+		} else if (strcmp(cmdv[0], "extract") == 0) {
+			if (cmdc == 3) {
+				return cpio_extract(&v, cmdv[1], cmdv[2]);
+			} else {
+				cpio_extract_all(&v);
+				return 0;
+			}
+		} else if (cmdc == 3 && strcmp(cmdv[0], "mkdir") == 0) {
+			cpio_mkdir(&v, strtoul(cmdv[1], NULL, 8), cmdv[2]);
+		} else if (cmdc == 3 && strcmp(cmdv[0], "ln") == 0) {
+			cpio_ln(&v, cmdv[1], cmdv[2]);
+		} else if (cmdc == 4 && strcmp(cmdv[0], "add") == 0) {
+			cpio_add(&v, strtoul(cmdv[1], NULL, 8), cmdv[2], cmdv[3]);
+		} else {
+			return 1;
+		}
+
+		--argc;
+		++argv;
+	}
+
+	dump_cpio(&v, incpio);
+	cpio_vec_destroy(&v);
+	return 0;
+}

native/jni/magiskhide/hide_utils.c

@@ -0,0 +1,213 @@
+/* hide_utils.c - Some utility functions for MagiskHide
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <dirent.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <selinux/selinux.h>
+
+#include "magisk.h"
+#include "utils.h"
+#include "resetprop.h"
+#include "magiskhide.h"
+#include "daemon.h"
+
+static char *prop_key[] =
+	{ "ro.boot.verifiedbootstate", "ro.boot.flash.locked", "ro.boot.veritymode", "ro.boot.warranty_bit", "ro.warranty_bit",
+	  "ro.debuggable", "ro.secure", "ro.build.type", "ro.build.tags", "ro.build.selinux", NULL };
+
+static char *prop_value[] =
+	{ "green", "1", "enforcing", "0", "0", "0", "1", "user", "release-keys", "0", NULL };
+
+static int mocked = 0;
+
+void manage_selinux() {
+	if (mocked) return;
+	char val[1];
+	int fd = xopen(SELINUX_ENFORCE, O_RDONLY);
+	xxread(fd, val, 1);
+	close(fd);
+	// Permissive
+	if (val[0] == '0') {
+		LOGI("hide_daemon: Permissive detected, hide the state\n");
+
+		chmod(SELINUX_ENFORCE, 0640);
+		chmod(SELINUX_POLICY, 0440);
+		mocked = 1;
+	}
+}
+
+void hide_sensitive_props() {
+	LOGI("hide_utils: Hiding sensitive props\n");
+
+	// Hide all sensitive props
+	char *value;
+	for (int i = 0; prop_key[i]; ++i) {
+		value = getprop(prop_key[i]);
+		if (value) {
+			if (strcmp(value, prop_value[i]) != 0)
+				setprop2(prop_key[i], prop_value[i], 0);
+			free(value);
+		}
+	}
+}
+
+static void rm_magisk_prop(const char *name, const char *value) {
+	if (strstr(name, "magisk")) {
+		deleteprop2(name, 0);
+	}
+}
+
+void clean_magisk_props() {
+	LOGD("hide_utils: Cleaning magisk props\n");
+	getprop_all(rm_magisk_prop);
+}
+
+int add_list(char *proc) {
+	if (!hideEnabled) {
+		free(proc);
+		return HIDE_NOT_ENABLED;
+	}
+
+	char *line;
+	struct vector *new_list = xmalloc(sizeof(*new_list));
+	if (new_list == NULL)
+		return DAEMON_ERROR;
+	vec_init(new_list);
+
+	vec_for_each(hide_list, line) {
+		// They should be unique
+		if (strcmp(line, proc) == 0) {
+			free(proc);
+			vec_destroy(new_list);
+			free(new_list);
+			return HIDE_ITEM_EXIST;
+		}
+		vec_push_back(new_list, line);
+	}
+
+	vec_push_back(new_list, proc);
+	LOGI("hide_list add: [%s]\n", proc);
+	ps_filter_proc_name(proc, kill_proc);
+
+	// Critical region
+	pthread_mutex_lock(&hide_lock);
+	vec_destroy(hide_list);
+	free(hide_list);
+	hide_list = new_list;
+	pthread_mutex_unlock(&hide_lock);
+
+	pthread_mutex_lock(&file_lock);
+	vector_to_file(HIDELIST, hide_list); // Do not complain if file not found
+	pthread_mutex_unlock(&file_lock);
+	return DAEMON_SUCCESS;
+}
+
+int rm_list(char *proc) {
+	if (!hideEnabled) {
+		free(proc);
+		return HIDE_NOT_ENABLED;
+	}
+
+	int ret = DAEMON_ERROR;
+	char *line;
+	int do_rm = 0;
+	struct vector *new_list = xmalloc(sizeof(*new_list));
+	if (new_list == NULL)
+		goto error;
+	vec_init(new_list);
+
+	vec_for_each(hide_list, line) {
+		if (strcmp(line, proc) == 0) {
+			free(proc);
+			proc = line;
+			do_rm = 1;
+			continue;
+		}
+		vec_push_back(new_list, line);
+	}
+
+	if (do_rm) {
+		LOGI("hide_list rm: [%s]\n", proc);
+		ps_filter_proc_name(proc, kill_proc);
+		// Critical region
+		pthread_mutex_lock(&hide_lock);
+		vec_destroy(hide_list);
+		free(hide_list);
+		hide_list = new_list;
+		pthread_mutex_unlock(&hide_lock);
+
+		ret = DAEMON_SUCCESS;
+		pthread_mutex_lock(&file_lock);
+		vector_to_file(HIDELIST, hide_list); // Do not complain if file not found
+		pthread_mutex_unlock(&file_lock);
+	} else {
+		ret = HIDE_ITEM_NOT_EXIST;
+		vec_destroy(new_list);
+		free(new_list);
+	}
+
+error:
+	free(proc);
+	return ret;
+}
+
+int init_list() {
+	LOGD("hide_list: initialize...\n");
+	if ((hide_list = xmalloc(sizeof(*hide_list))) == NULL)
+		return 1;
+	vec_init(hide_list);
+
+	// Might error if file doesn't exist, no need to report
+	file_to_vector(HIDELIST, hide_list);
+
+	char *line;
+	vec_for_each(hide_list, line) {
+		LOGI("hide_list: [%s]\n", line);
+		ps_filter_proc_name(line, kill_proc);
+	}
+	return 0;
+}
+
+int destroy_list() {
+	char *line;
+	vec_for_each(hide_list, line) {
+		ps_filter_proc_name(line, kill_proc);
+	}
+	vec_deep_destroy(hide_list);
+	free(hide_list);
+	hide_list = NULL;
+	return 0;
+}
+
+void add_hide_list(int client) {
+	char *proc = read_string(client);
+	// ack
+	write_int(client, add_list(proc));
+	close(client);
+}
+
+void rm_hide_list(int client) {
+	char *proc = read_string(client);
+	// ack
+	write_int(client, rm_list(proc));
+	close(client);
+}
+
+void ls_hide_list(int client) {
+	if (!hideEnabled) {
+		write_int(client, HIDE_NOT_ENABLED);
+		return;
+	}
+	write_int(client, DAEMON_SUCCESS);
+	write_int(client, vec_size(hide_list));
+	char *s;
+	vec_for_each(hide_list, s) {
+		write_string(client, s);
+	}
+	close(client);
+}

native/jni/magiskhide/magiskhide.c

@@ -0,0 +1,182 @@
+/* magiskhide.c - initialize the environment for Magiskhide
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <pthread.h>
+#include <signal.h>
+#include <string.h>
+#include <sys/wait.h>
+#include <sys/types.h>
+
+#include "magisk.h"
+#include "utils.h"
+#include "magiskhide.h"
+#include "daemon.h"
+#include "resetprop.h"
+
+struct vector *hide_list = NULL;
+
+int hideEnabled = 0;
+static pthread_t proc_monitor_thread;
+pthread_mutex_t hide_lock, file_lock;
+
+void kill_proc(int pid) {
+	kill(pid, SIGTERM);
+}
+
+static void usage(char *arg0) {
+	fprintf(stderr,
+		"MagiskHide v" xstr(MAGISK_VERSION) "(" xstr(MAGISK_VER_CODE) ") (by topjohnwu) - Hide Magisk!\n\n"
+		"Usage: %s [--options [arguments...] ]\n\n"
+		"Options:\n"
+		"  --enable          Start magiskhide\n"
+		"  --disable         Stop magiskhide\n"
+		"  --add PROCESS     Add PROCESS to the hide list\n"
+		"  --rm PROCESS      Remove PROCESS from the hide list\n"
+		"  --ls              Print out the current hide list\n"
+		, arg0);
+	exit(1);
+}
+
+void launch_magiskhide(int client) {
+	if (hideEnabled) {
+		if (client > 0) {
+			write_int(client, HIDE_IS_ENABLED);
+			close(client);
+		}
+		return;
+	}
+
+	if (!logd) {
+		if (client > 0) {
+			write_int(client, LOGD_DISABLED);
+			close(client);
+		}
+		setprop(MAGISKHIDE_PROP, "0");
+		// Remove without actually removing persist props
+		deleteprop2(MAGISKHIDE_PROP, 0);
+		return;
+	}
+
+	hideEnabled = 1;
+	LOGI("* Starting MagiskHide\n");
+
+	deleteprop2(MAGISKHIDE_PROP, 1);
+
+	hide_sensitive_props();
+
+	// Initialize the mutex lock
+	pthread_mutex_init(&hide_lock, NULL);
+	pthread_mutex_init(&file_lock, NULL);
+
+	// Initialize the hide list
+	if (init_list())
+		goto error;
+
+	// Add SafetyNet by default
+	add_list(strdup("com.google.android.gms.unstable"));
+
+	if (client > 0) {
+		write_int(client, DAEMON_SUCCESS);
+		close(client);
+	}
+
+	// Get thread reference
+	proc_monitor_thread = pthread_self();
+	// Start monitoring
+	proc_monitor();
+	return;
+
+error:
+	hideEnabled = 0;
+	if (client > 0) {
+		write_int(client, DAEMON_ERROR);
+		close(client);
+	}
+	return;
+}
+
+void stop_magiskhide(int client) {
+	if (!hideEnabled) {
+		write_int(client, HIDE_NOT_ENABLED);
+		close(client);
+		return;
+	}
+
+	LOGI("* Stopping MagiskHide\n");
+
+	hideEnabled = 0;
+	setprop(MAGISKHIDE_PROP, "0");
+	// Remove without actually removing persist props
+	deleteprop2(MAGISKHIDE_PROP, 0);
+	pthread_kill(proc_monitor_thread, TERM_THREAD);
+
+	write_int(client, DAEMON_SUCCESS);
+	close(client);
+}
+
+int magiskhide_main(int argc, char *argv[]) {
+	if (argc < 2) {
+		usage(argv[0]);
+	}
+	int req = DO_NOTHING;
+	if (strcmp(argv[1], "--enable") == 0) {
+		req = LAUNCH_MAGISKHIDE;
+	} else if (strcmp(argv[1], "--disable") == 0) {
+		req = STOP_MAGISKHIDE;
+	} else if (strcmp(argv[1], "--add") == 0 && argc > 2) {
+		req = ADD_HIDELIST;
+	} else if (strcmp(argv[1], "--rm") == 0 && argc > 2) {
+		req = RM_HIDELIST;
+	} else if (strcmp(argv[1], "--ls") == 0) {
+		req = LS_HIDELIST;
+	} else {
+		usage(argv[0]);
+	}
+	int fd = connect_daemon();
+	write_int(fd, req);
+	if (req == ADD_HIDELIST || req == RM_HIDELIST) {
+		write_string(fd, argv[2]);
+	}
+	int code = read_int(fd);
+	switch (code) {
+	case DAEMON_SUCCESS:
+		break;
+	case ROOT_REQUIRED:
+		fprintf(stderr, "Root is required for this operation\n");
+		return code;
+	case LOGD_DISABLED:
+		fprintf(stderr, "Logd is not running, cannot run logcat\n");
+		return (code);
+	case HIDE_NOT_ENABLED:
+		fprintf(stderr, "Magisk hide is not enabled yet\n");
+		return code;
+	case HIDE_IS_ENABLED:
+		fprintf(stderr, "Magisk hide is already enabled\n");
+		return code;
+	case HIDE_ITEM_EXIST:
+		fprintf(stderr, "Process [%s] already exists in hide list\n", argv[2]);
+		return code;
+	case HIDE_ITEM_NOT_EXIST:
+		fprintf(stderr, "Process [%s] does not exist in hide list\n", argv[2]);
+		return code;
+	case DAEMON_ERROR:
+	default:
+		fprintf(stderr, "Error occured in daemon...\n");
+		return code;
+	}
+
+	if (req == LS_HIDELIST) {
+		int argc = read_int(fd);
+		for (int i = 0; i < argc; ++i) {
+			char *s = read_string(fd);
+			printf("%s\n", s);
+			free(s);
+		}
+	}
+	close(fd);
+
+	return 0;
+}

native/jni/magiskhide/magiskhide.h

@@ -0,0 +1,30 @@
+#ifndef MAGISK_HIDE_H
+#define MAGISK_HIDE_H
+
+#include <pthread.h>
+
+#define TERM_THREAD SIGUSR1
+#define HIDE_DONE   SIGUSR2
+
+// Kill process
+void kill_proc(int pid);
+
+// Process monitor
+void proc_monitor();
+
+// Utility functions
+void manage_selinux();
+void hide_sensitive_props();
+void clean_magisk_props();
+
+// List managements
+int add_list(char *proc);
+int rm_list(char *proc);
+int init_list();
+int destroy_list();
+
+extern int hideEnabled;
+extern struct vector *hide_list;
+extern pthread_mutex_t hide_lock, file_lock;
+
+#endif

native/jni/magiskhide/proc_monitor.c

@@ -0,0 +1,265 @@
+/* proc_monitor.c - Monitor am_proc_start events and unmount
+ *
+ * We monitor the logcat am_proc_start events. When a target starts up,
+ * we pause it ASAP, and fork a new process to join its mount namespace
+ * and do all the unmounting/mocking
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <signal.h>
+#include <pthread.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <sys/mount.h>
+
+#include "magisk.h"
+#include "utils.h"
+#include "magiskhide.h"
+
+static char init_ns[32], zygote_ns[2][32], cache_block[256];
+static int hide_queue = 0, zygote_num, has_cache = 1, pipefd[2] = { -1, -1 };
+
+// Workaround for the lack of pthread_cancel
+static void term_thread(int sig) {
+	LOGD("proc_monitor: running cleanup\n");
+	destroy_list();
+	hideEnabled = 0;
+	// Unregister listener
+	log_events[HIDE_EVENT].fd = -1;
+	close(pipefd[0]);
+	close(pipefd[1]);
+	pipefd[0] = pipefd[1] = -1;
+	pthread_mutex_destroy(&hide_lock);
+	pthread_mutex_destroy(&file_lock);
+	LOGD("proc_monitor: terminating...\n");
+	pthread_exit(NULL);
+}
+
+static void hide_done(int sig) {
+	--hide_queue;
+	if (hide_queue == 0) {
+		xmount(NULL, "/", NULL, MS_REMOUNT, NULL);
+		xsymlink(DATABIN, "/data/magisk");
+		xsymlink(MAINIMG, "/data/magisk.img");
+		xsymlink(MOUNTPOINT, "/magisk");
+		xmount(NULL, "/", NULL, MS_REMOUNT | MS_RDONLY, NULL);
+	}
+}
+
+static int read_namespace(const int pid, char* target, const size_t size) {
+	char path[32];
+	snprintf(path, sizeof(path), "/proc/%d/ns/mnt", pid);
+	if (access(path, R_OK) == -1)
+		return 1;
+	xreadlink(path, target, size);
+	return 0;
+}
+
+static void store_zygote_ns(int pid) {
+	if (zygote_num == 2) return;
+	do {
+		usleep(500);
+		read_namespace(pid, zygote_ns[zygote_num], 32);
+	} while (strcmp(zygote_ns[zygote_num], init_ns) == 0);
+	++zygote_num;
+}
+
+static void lazy_unmount(const char* mountpoint) {
+	if (umount2(mountpoint, MNT_DETACH) != -1)
+		LOGD("hide_daemon: Unmounted (%s)\n", mountpoint);
+}
+
+static void hide_daemon(int pid, int ppid) {
+	LOGD("hide_daemon: start unmount for pid=[%d]\n", pid);
+	strcpy(argv0, "hide_daemon");
+
+	char *line, buffer[PATH_MAX];
+	struct vector mount_list;
+
+	manage_selinux();
+	clean_magisk_props();
+
+	if (switch_mnt_ns(pid))
+		goto exit;
+
+	snprintf(buffer, sizeof(buffer), "/proc/%d/mounts", pid);
+	vec_init(&mount_list);
+	file_to_vector(buffer, &mount_list);
+
+	// Find the cache block name if not found yet
+	if (has_cache && cache_block[0] == '\0') {
+		vec_for_each(&mount_list, line) {
+			if (strstr(line, " /cache ")) {
+				sscanf(line, "%256s", cache_block);
+				break;
+			}
+		}
+		if (strlen(cache_block) == 0)
+			has_cache = 0;
+	}
+
+	// Unmout cache mounts
+	if (has_cache) {
+		vec_for_each(&mount_list, line) {
+			if (strstr(line, cache_block) && (strstr(line, " /system/") || strstr(line, " /vendor/"))) {
+				sscanf(line, "%*s %4096s", buffer);
+				lazy_unmount(buffer);
+			}
+		}
+	}
+
+	// Unmount dummy skeletons, /sbin links
+	vec_for_each(&mount_list, line) {
+		if (strstr(line, "tmpfs /system") || strstr(line, "tmpfs /vendor") || strstr(line, "tmpfs /sbin")) {
+			sscanf(line, "%*s %4096s", buffer);
+			lazy_unmount(buffer);
+		}
+		free(line);
+	}
+	vec_destroy(&mount_list);
+
+	// Re-read mount infos
+	snprintf(buffer, sizeof(buffer), "/proc/%d/mounts", pid);
+	vec_init(&mount_list);
+	file_to_vector(buffer, &mount_list);
+
+	// Unmount any loop mounts
+	vec_for_each(&mount_list, line) {
+		if (strstr(line, "/dev/block/loop")) {
+			sscanf(line, "%*s %4096s", buffer);
+			lazy_unmount(buffer);
+		}
+		free(line);
+	}
+
+exit:
+	// Send resume signal
+	kill(pid, SIGCONT);
+	// Free up memory
+	vec_destroy(&mount_list);
+	// Wait a while and link it back
+	sleep(10);
+	kill(ppid, HIDE_DONE);
+	_exit(0);
+}
+
+void proc_monitor() {
+	// Unblock user signals
+	sigset_t block_set;
+	sigemptyset(&block_set);
+	sigaddset(&block_set, TERM_THREAD);
+	sigaddset(&block_set, HIDE_DONE);
+	pthread_sigmask(SIG_UNBLOCK, &block_set, NULL);
+
+	// Register the cancel signal
+	struct sigaction act;
+	memset(&act, 0, sizeof(act));
+	act.sa_handler = term_thread;
+	sigaction(TERM_THREAD, &act, NULL);
+	act.sa_handler = hide_done;
+	sigaction(HIDE_DONE, &act, NULL);
+
+	cache_block[0] = '\0';
+
+	// Get the mount namespace of init
+	if (read_namespace(1, init_ns, 32)) {
+		LOGE("proc_monitor: Your kernel doesn't support mount namespace :(\n");
+		term_thread(TERM_THREAD);
+	}
+	LOGI("proc_monitor: init ns=%s\n", init_ns);
+
+	// Get the mount namespace of zygote
+	zygote_num = 0;
+	while(!zygote_num) {
+		// Check zygote every 10 ms
+		usleep(10000);
+		ps_filter_proc_name("zygote", store_zygote_ns);
+	}
+	ps_filter_proc_name("zygote64", store_zygote_ns);
+
+	switch(zygote_num) {
+	case 1:
+		LOGI("proc_monitor: zygote ns=%s\n", zygote_ns[0]);
+		break;
+	case 2:
+		LOGI("proc_monitor: zygote ns=%s zygote64 ns=%s\n", zygote_ns[0], zygote_ns[1]);
+		break;
+	}
+
+	// Register our listener to logcat monitor
+	xpipe2(pipefd, O_CLOEXEC);
+	log_events[HIDE_EVENT].fd = pipefd[1];
+
+	for (char *log, *line;; free(log)) {
+		if (read(pipefd[0], &log, sizeof(log)) != sizeof(log)) {
+			/* It might be interrupted */
+			log = NULL;
+			continue;
+		}
+		char *ss = strchr(log, '[');
+		int pid, ret, comma = 0;
+		char *pos = ss, processName[256], ns[32];
+
+		while(1) {
+			pos = strchr(pos, ',');
+			if(pos == NULL)
+				break;
+			pos[0] = ' ';
+			++comma;
+		}
+
+		if (comma == 6)
+			ret = sscanf(ss, "[%*d %d %*d %*d %256s", &pid, processName);
+		else
+			ret = sscanf(ss, "[%*d %d %*d %256s", &pid, processName);
+
+		if(ret != 2)
+			continue;
+
+		// Critical region
+		pthread_mutex_lock(&hide_lock);
+		vec_for_each(hide_list, line) {
+			if (strcmp(processName, line) == 0) {
+				while(1) {
+					ret = 1;
+					for (int i = 0; i < zygote_num; ++i) {
+						read_namespace(pid, ns, sizeof(ns));
+						if (strcmp(ns, zygote_ns[i]) == 0) {
+							usleep(50);
+							ret = 0;
+							break;
+						}
+					}
+					if (ret) break;
+				}
+
+				// Send pause signal ASAP
+				if (kill(pid, SIGSTOP) == -1) continue;
+
+				LOGI("proc_monitor: %s (PID=%d ns=%s)\n", processName, pid, ns);
+
+				xmount(NULL, "/", NULL, MS_REMOUNT, NULL);
+				unlink("/magisk");
+				unlink("/data/magisk");
+				unlink("/data/magisk.img");
+				unlink(MAGISKRC);
+				xmount(NULL, "/", NULL, MS_REMOUNT | MS_RDONLY, NULL);
+				++hide_queue;
+
+				/*
+				 * The setns system call do not support multithread processes
+				 * We have to fork a new process, setns, then do the unmounts
+				 */
+				int selfpid = getpid();
+				if (fork_dont_care() == 0)
+					hide_daemon(pid, selfpid);
+
+				break;
+			}
+		}
+		pthread_mutex_unlock(&hide_lock);
+	}
+}

native/jni/resetprop/ErrnoRestorer.h

@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ERRNO_RESTORER_H
+#define ERRNO_RESTORER_H
+
+#include <errno.h>
+
+#include "bionic_macros.h"
+
+class ErrnoRestorer {
+ public:
+  explicit ErrnoRestorer() : saved_errno_(errno) {
+  }
+
+  ~ErrnoRestorer() {
+    errno = saved_errno_;
+  }
+
+  void override(int new_errno) {
+    saved_errno_ = new_errno;
+  }
+
+ private:
+  int saved_errno_;
+
+  DISALLOW_COPY_AND_ASSIGN(ErrnoRestorer);
+};
+
+#endif // ERRNO_RESTORER_H