├── .github
└── logo.png
├── .gitignore
├── .travis.yml
├── CHANGELOG.md
├── CONTRIBUTING.md
├── LICENSE
├── README.md
├── RELEASING.md
├── build.gradle
├── gradle.properties
├── gradle
└── wrapper
│ ├── gradle-wrapper.jar
│ └── gradle-wrapper.properties
├── gradlew
├── gradlew.bat
├── relinker
├── .gitignore
├── build.gradle
└── src
│ ├── main
│ ├── AndroidManifest.xml
│ └── java
│ │ └── com
│ │ └── getkeepsafe
│ │ └── relinker
│ │ ├── ApkLibraryInstaller.java
│ │ ├── MissingLibraryException.java
│ │ ├── ReLinker.java
│ │ ├── ReLinkerInstance.java
│ │ ├── SystemLibraryLoader.java
│ │ ├── TextUtils.java
│ │ └── elf
│ │ ├── Dynamic32Structure.java
│ │ ├── Dynamic64Structure.java
│ │ ├── Elf.java
│ │ ├── Elf32Header.java
│ │ ├── Elf64Header.java
│ │ ├── ElfParser.java
│ │ ├── Program32Header.java
│ │ ├── Program64Header.java
│ │ ├── Section32Header.java
│ │ └── Section64Header.java
│ └── test
│ ├── java
│ └── com
│ │ └── getkeepsafe
│ │ └── relinker
│ │ ├── ApkLibraryInstallerTest.java
│ │ ├── ApkLibraryInstallerWithSplitsTest.java
│ │ ├── ReLinkerInstanceTest.java
│ │ └── elf
│ │ └── ElfParserTest.java
│ └── resources
│ ├── fake.apk
│ ├── libdl.so
│ └── robolectric.properties
├── sample
├── .gitignore
├── build.gradle
├── proguard-rules.pro
└── src
│ ├── main
│ ├── AndroidManifest.xml
│ ├── java
│ │ └── com
│ │ │ └── getkeepsafe
│ │ │ └── relinker
│ │ │ └── sample
│ │ │ ├── App.java
│ │ │ ├── MainActivity.java
│ │ │ └── Native.java
│ ├── jni
│ │ ├── Android.mk
│ │ ├── Application.mk
│ │ ├── hello
│ │ │ ├── Android.mk
│ │ │ ├── hello.cpp
│ │ │ └── hello.h
│ │ └── hellojni
│ │ │ ├── .DS_Store
│ │ │ ├── Android.mk
│ │ │ └── hellojni.cpp
│ ├── libs
│ │ ├── armeabi-v7a
│ │ │ ├── libhello.so
│ │ │ └── libhellojni.so
│ │ ├── armeabi
│ │ │ ├── libhello.so
│ │ │ └── libhellojni.so
│ │ └── x86
│ │ │ ├── libhello.so
│ │ │ └── libhellojni.so
│ └── res
│ │ ├── layout
│ │ └── activity_main.xml
│ │ ├── mipmap-hdpi
│ │ └── ic_launcher.png
│ │ ├── mipmap-mdpi
│ │ └── ic_launcher.png
│ │ ├── mipmap-xhdpi
│ │ └── ic_launcher.png
│ │ ├── mipmap-xxhdpi
│ │ └── ic_launcher.png
│ │ ├── mipmap-xxxhdpi
│ │ └── ic_launcher.png
│ │ ├── values-w820dp
│ │ └── dimens.xml
│ │ └── values
│ │ ├── colors.xml
│ │ ├── dimens.xml
│ │ ├── strings.xml
│ │ └── styles.xml
│ └── test
│ └── java
│ └── com
│ └── getkeepsafe
│ └── relinker
│ └── ExampleUnitTest.java
└── settings.gradle
/.github/logo.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/KeepSafe/ReLinker/41a5e0ce54a171b4633380404bb99dece01a6582/.github/logo.png
--------------------------------------------------------------------------------
/.gitignore:
--------------------------------------------------------------------------------
1 | # Built application files
2 | *.apk
3 | *.ap_
4 |
5 | # Files for the Dalvik VM
6 | *.dex
7 |
8 | # Java class files
9 | *.class
10 |
11 | # Generated files
12 | bin/
13 | gen/
14 |
15 | # Gradle files
16 | .gradle/
17 | build/
18 | /*/build/
19 |
20 | # Local configuration file (sdk path, etc)
21 | local.properties
22 |
23 | # Proguard folder generated by Eclipse
24 | proguard/
25 |
26 | # Log Files
27 | *.log
28 |
29 | *.iml
30 | .idea/
31 |
--------------------------------------------------------------------------------
/.travis.yml:
--------------------------------------------------------------------------------
1 | language: android
2 |
3 | sudo: false
4 |
5 | install: true
6 |
7 | jdk:
8 | - oraclejdk8
9 |
10 | android:
11 | components:
12 | - tools
13 | - platform-tools
14 |
15 | before_install:
16 | - mkdir "$ANDROID_HOME/licenses" || true
17 | - echo "d56f5187479451eabf01fb78af6dfcb131a6481e" > "$ANDROID_HOME/licenses/android-sdk-license"
18 | - echo "24333f8a63b6825ea9c5514f83c2829b004d1fee" >> "$ANDROID_HOME/licenses/android-sdk-license"
19 |
20 | cache:
21 | directories:
22 | - $HOME/.m2
23 |
--------------------------------------------------------------------------------
/CHANGELOG.md:
--------------------------------------------------------------------------------
1 | # Changelog
2 |
3 |
11 |
12 | ## [Unreleased]
13 |
14 | ## [1.4.5] - Released July 13, 2022
15 | - Added null check when closing the parser (#99)
16 |
17 | ## [1.4.4] - Released July 9, 2021
18 | - Removed reliance on JCenter (#87)
19 |
20 | ## [1.4.3] - Released March 3, 2021
21 | - Moved artifact publishing from JCenter to Maven Central (#81)
--------------------------------------------------------------------------------
/CONTRIBUTING.md:
--------------------------------------------------------------------------------
1 | ## Guidelines for contributing
2 |
3 | Thank you for your interest in contributing! We're always happy to get the community involved in our projects, however we have just a couple rules that we enforce for any pull requests:
4 |
5 | - You must follow the code style already in place
6 | - You must squash all of your commits into one meaningful commit
7 |
8 | Any pull request that does not meet the above criteria will not be merged.
9 |
--------------------------------------------------------------------------------
/LICENSE:
--------------------------------------------------------------------------------
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--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
1 |
2 |
3 | ReLinker
4 |
5 |
6 | [](https://travis-ci.org/KeepSafe/ReLinker)
7 | [](https://maven-badges.herokuapp.com/maven-central/com.getkeepsafe.relinker/relinker)
8 | [](https://jitpack.io/#KeepSafe/ReLinker)
9 |
10 |
11 | A robust native library loader for Android. More information can be found in our [blog post](https://medium.com/keepsafe-engineering/the-perils-of-loading-native-libraries-on-android-befa49dce2db)
12 |
13 | **Min SDK:** 9
14 |
15 | [JavaDoc](https://jitpack.io/com/github/KeepSafe/Relinker/latest/javadoc/)
16 |
17 | ## Overview
18 |
19 | The Android `PackageManager`'s native library loading is unreliable. Occasionally when using native libraries, you will encounter a stack trace like this:
20 |
21 | ```
22 | java.lang.UnsatisfiedLinkError: Couldn't load stlport_shared from loader dalvik.system.PathClassLoader: findLibrary returned null
23 | at java.lang.Runtime.loadLibrary(Runtime.java:365)
24 | at java.lang.System.loadLibrary(System.java:535)
25 | at com.your.app.NativeClass.(Native.java:16)
26 | ... 63 more
27 |
28 | Caused by: java.lang.UnsatisfiedLinkError: Library stlport_shared not found
29 | at java.lang.Runtime.loadLibrary(Runtime.java:461)
30 | at java.lang.System.loadLibrary(System.java:557)
31 | at com.your.app.NativeClass.(Native.java:16)
32 | ... 5 more
33 | ```
34 |
35 | ReLinker fixes these issues by replacing the standard `System.loadLibrary` call with a more reliable implementation.
36 |
37 | Note that this library fixes intermittent link errors; if you get an error every time you use your app, you may have a configuration issue. See [this StackOverflow question](http://stackoverflow.com/questions/27421134/system-loadlibrary-couldnt-find-native-library-in-my-case) for more information.
38 |
39 | ## Who needs ReLinker?
40 |
41 | If your app includes native libraries, and your minimum SDK is below API 23 (Marshmallow), you need ReLinker.
42 |
43 | There are a number of different bugs addressed by ReLinker; the last of these was resolved as of Marshmallow. As long as your app's min SDK is at or above it, loading libraries via `System.loadLibrary("foo")` is safe.
44 |
45 | ## Installation
46 |
47 | ReLinker is distributed using [MavenCentral](https://search.maven.org/artifact/com.getkeepsafe.relinker/relinker).
48 |
49 | ```groovy
50 | repositories {
51 | mavenCentral()
52 | }
53 |
54 | dependencies {
55 | compile 'com.getkeepsafe.relinker:relinker:x.x.x'
56 | }
57 | ```
58 |
59 | If you wish, you may also use ReLinker with [jitpack](https://jitpack.io/#KeepSafe/ReLinker)
60 |
61 | ## Usage
62 |
63 | Simply replace a call to `System.loadLibrary` like this:
64 |
65 | ```java
66 | System.loadLibrary("mylibrary");
67 | ```
68 |
69 | With a call to `ReLinker.loadLibrary` like this:
70 |
71 | ```java
72 | ReLinker.loadLibrary(context, "mylibrary");
73 | ```
74 |
75 | ## Advanced Usage
76 |
77 | ### Asynchronous loading
78 |
79 | ReLinker can load libraries asynchronously. Simply pass a `LoadListener` instance to the `loadLibrary` call:
80 | ```java
81 | ReLinker.loadLibrary(context, "mylibrary", new ReLinker.LoadListener() {
82 | @Override
83 | public void success() { /* Yay */ }
84 |
85 | @Override
86 | public void failure(Throwable t) { /* Boo */ }
87 | });
88 | ```
89 |
90 | ### Recursive loading
91 |
92 | On older versions of Android, the system's library loader may fail to resolve intra-library dependencies. In this instance, ReLinker can resolve those dependencies for you. This will recursively load all libraries defined as "needed" by each library.
93 |
94 | For example, if you have a library `libchild` that relies on `libparent`, then `libchild` will have an entry in its shared object file defining that. ReLinker will parse the shared object file and determine that `libchild` needs `libparent`. ReLinker will then proceed to load `libparent` (and any dependencies it may have) and then `libchild`.
95 |
96 | To allow ReLinker to recursively load and resolve intra-library dependencies simply modify your `loadLibrary` call with the `recursively` modifier, like so:
97 | ```java
98 | ReLinker.recursively().loadLibrary(context, "mylibrary");
99 | ```
100 |
101 | ### Logging
102 |
103 | To help facilitate debugging, ReLinker can log messages to a `Logger` instance you provide:
104 | ```java
105 | ReLinker.log(myLogger).loadLibrary(context, "mylibrary");
106 | ```
107 |
108 | Which will log the following messages during a normal / successful execution:
109 | ```
110 | D/ReLinker: Beginning load of mylibrary...
111 | D/ReLinker: mylibrary was not loaded normally, re-linking...
112 | D/ReLinker: Looking for lib/x86/libmylibrary.so in APK...
113 | D/ReLinker: Found lib/x86/libmylibrary.so! Extracting...
114 | D/ReLinker: mylibrary was re-linked!
115 | ```
116 |
117 | ### Versioning
118 |
119 | In the event that your library's code is changed, it is a good idea to specify a specific version. Doing so will allow ReLinker to update the workaround library file successfully. In the case that the system handles the library loading appropriately, the version specified is not used as all library files are extracted and replaced on update or install.
120 |
121 | To specify a version for your library simply provide it as an additional parameter for `loadLibrary` like:
122 | ```java
123 | ReLinker.loadLibrary(context, "mylibrary", "1.0");
124 | ```
125 |
126 | This will cause ReLinker to look for, and load `libmylibrary.so.1.0`. Subsequent version updates will automatically clean up all other library versions.
127 |
128 | ## Sample application
129 |
130 | See the sample application under `sample/` for a quick demo.
131 |
132 | ## Acknowledgements
133 |
134 | Special thanks to [Jeff Young](https://github.com/tenoversix) for the awesome logo!
135 |
136 | ## License
137 |
138 | Copyright 2015 - 2016 Keepsafe Software Inc.
139 |
140 | Licensed under the Apache License, Version 2.0 (the "License");
141 | you may not use this file except in compliance with the License.
142 | You may obtain a copy of the License at
143 |
144 | http://www.apache.org/licenses/LICENSE-2.0
145 |
146 | Unless required by applicable law or agreed to in writing, software
147 | distributed under the License is distributed on an "AS IS" BASIS,
148 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
149 | See the License for the specific language governing permissions and
150 | limitations under the License.
151 |
--------------------------------------------------------------------------------
/RELEASING.md:
--------------------------------------------------------------------------------
1 | How To Release
2 | ==============
3 |
4 | Due to Maven Central's very particular requirements, the release process is a bit
5 | elaborate and requires a good deal of local configuration. This guide should walk
6 | you through it. It won't do anyone outside of KeepSafe any good, but the workflow
7 | is representative of just about any project deploying via Sonatype.
8 |
9 | We currently deploy to Maven Central (via Sonatype's OSS Nexus instance).
10 |
11 | ### Prerequisites
12 |
13 | 1. A *published* GPG code-signing key
14 | 1. A Sonatype Nexus OSS account with permission to publish in com.getkeepsafe
15 | 1. Permission to push directly to https://github.com/KeepSafe/ReLinker
16 |
17 | ### Setup
18 |
19 | 1. Add your GPG key to your github profile - this is required
20 | for github to know that your commits and tags are "verified".
21 | 1. Configure your code-signing key in ~/.gradle/gradle.properties:
22 | ```gradle
23 | signing.keyId=
24 | signing.password=
25 | signing.secretKeyRingFile=/path/to/your/secring.gpg
26 | ```
27 | 1. Configure your Sonatype credentials in ~/.gradle/gradle.properties:
28 | ```gradle
29 | mavenCentralUsername=
30 | mavenCentralPassword=
31 | SONATYPE_STAGING_PROFILE=com.getkeepsafe
32 | ```
33 | 1. Configure git with your codesigning key; make sure it's the same as the one
34 | you use to sign binaries (i.e. it's the same one you added to gradle.properties):
35 | ```bash
36 | # Do this for the ReLinker repo only
37 | git config user.email "your@email.com"
38 | git config user.signingKey "your-key-id"
39 | ```
40 |
41 | ### Pushing a build
42 |
43 | 1. Edit gradle.properties, update the VERSION property for the new version release
44 | 1. Edit changelog, add relevant changes, note the date and new version (follow the existing pattern)
45 | 1. Add new `## [Unreleased]` header for next release
46 | 1. Verify that the everything works:
47 | ```bash
48 | ./gradlew clean check
49 | ```
50 | 1. Make a *signed* commit:
51 | ```bash
52 | git commit -S -m "Release version X.Y.Z"
53 | ```
54 | 1. Make a *signed* tag:
55 | ```bash
56 | git tag -s -a X.Y.Z
57 | ```
58 | 1. Upload binaries to Staging:
59 | ```bash
60 | ./gradlew publish
61 | ```
62 | 1. Publish to Release:
63 | ```bash
64 | ./gradlew closeAndReleaseRepository
65 | ```
66 | 1. Wait until that's done. It takes a while to publish and be available in [MavenCentral](https://repo.maven.apache.org/maven2/com/getkeepsafe/). Monitor until the latest published version is visible.
67 | 1. Hooray, we're in Maven Central now!
68 | 1. Push all of our work to Github to make it official. Check previous [releases](https://github.com/KeepSafe/ReLinker/releases) and edit tag release changes:
69 | ```bash
70 | git push --tags origin master
71 | ```
72 |
--------------------------------------------------------------------------------
/build.gradle:
--------------------------------------------------------------------------------
1 | wrapper {
2 | gradleVersion = '7.1.1'
3 | distributionType = Wrapper.DistributionType.BIN
4 | }
5 | buildscript {
6 | repositories {
7 | google()
8 | mavenCentral()
9 | }
10 | dependencies {
11 | classpath 'com.android.tools.build:gradle:4.2.2'
12 | classpath 'com.vanniktech:gradle-maven-publish-plugin:0.17.0'
13 | }
14 | }
15 |
16 | allprojects {
17 | repositories {
18 | google()
19 | mavenCentral()
20 | }
21 | }
22 |
23 | task clean(type: Delete) {
24 | delete rootProject.buildDir
25 | }
26 |
--------------------------------------------------------------------------------
/gradle.properties:
--------------------------------------------------------------------------------
1 | android.useAndroidX=true
2 |
3 | GROUP=com.getkeepsafe.relinker
4 | VERSION_NAME=1.4.5
5 | POM_ARTIFACT_ID=relinker
6 |
7 | POM_NAME=ReLinker
8 | POM_PACKAGING=aar
9 |
10 | POM_DESCRIPTION=A robust native library loader for Android
11 | POM_INCEPTION_YEAR=2015
12 |
13 | POM_URL=https://github.com/KeepSafe/ReLinker
14 | POM_SCM_URL=https://github.com/KeepSafe/ReLinker
15 | POM_SCM_CONNECTION=scm:git:git://github.com/KeepSafe/ReLinker.git
16 | POM_SCM_DEV_CONNECTION=scm:git:ssh://git@github.com/KeepSafe/ReLinker.git
17 |
18 | POM_LICENCE_NAME=The Apache Software License, Version 2.0
19 | POM_LICENCE_URL=http://www.apache.org/licenses/LICENSE-2.0.txt
20 | POM_LICENCE_DIST=repo
21 |
22 | POM_DEVELOPER_ID=keepsafe
23 | POM_DEVELOPER_NAME=KeepSafe Software, Inc.
24 | POM_DEVELOPER_URL=https://github.com/KeepSafe/
--------------------------------------------------------------------------------
/gradle/wrapper/gradle-wrapper.jar:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/KeepSafe/ReLinker/41a5e0ce54a171b4633380404bb99dece01a6582/gradle/wrapper/gradle-wrapper.jar
--------------------------------------------------------------------------------
/gradle/wrapper/gradle-wrapper.properties:
--------------------------------------------------------------------------------
1 | distributionBase=GRADLE_USER_HOME
2 | distributionPath=wrapper/dists
3 | distributionUrl=https\://services.gradle.org/distributions/gradle-6.8.3-bin.zip
4 | zipStoreBase=GRADLE_USER_HOME
5 | zipStorePath=wrapper/dists
6 |
--------------------------------------------------------------------------------
/gradlew:
--------------------------------------------------------------------------------
1 | #!/usr/bin/env sh
2 |
3 | #
4 | # Copyright 2015 the original author or authors.
5 | #
6 | # Licensed under the Apache License, Version 2.0 (the "License");
7 | # you may not use this file except in compliance with the License.
8 | # You may obtain a copy of the License at
9 | #
10 | # https://www.apache.org/licenses/LICENSE-2.0
11 | #
12 | # Unless required by applicable law or agreed to in writing, software
13 | # distributed under the License is distributed on an "AS IS" BASIS,
14 | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 | # See the License for the specific language governing permissions and
16 | # limitations under the License.
17 | #
18 |
19 | ##############################################################################
20 | ##
21 | ## Gradle start up script for UN*X
22 | ##
23 | ##############################################################################
24 |
25 | # Attempt to set APP_HOME
26 | # Resolve links: $0 may be a link
27 | PRG="$0"
28 | # Need this for relative symlinks.
29 | while [ -h "$PRG" ] ; do
30 | ls=`ls -ld "$PRG"`
31 | link=`expr "$ls" : '.*-> \(.*\)$'`
32 | if expr "$link" : '/.*' > /dev/null; then
33 | PRG="$link"
34 | else
35 | PRG=`dirname "$PRG"`"/$link"
36 | fi
37 | done
38 | SAVED="`pwd`"
39 | cd "`dirname \"$PRG\"`/" >/dev/null
40 | APP_HOME="`pwd -P`"
41 | cd "$SAVED" >/dev/null
42 |
43 | APP_NAME="Gradle"
44 | APP_BASE_NAME=`basename "$0"`
45 |
46 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
47 | DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
48 |
49 | # Use the maximum available, or set MAX_FD != -1 to use that value.
50 | MAX_FD="maximum"
51 |
52 | warn () {
53 | echo "$*"
54 | }
55 |
56 | die () {
57 | echo
58 | echo "$*"
59 | echo
60 | exit 1
61 | }
62 |
63 | # OS specific support (must be 'true' or 'false').
64 | cygwin=false
65 | msys=false
66 | darwin=false
67 | nonstop=false
68 | case "`uname`" in
69 | CYGWIN* )
70 | cygwin=true
71 | ;;
72 | Darwin* )
73 | darwin=true
74 | ;;
75 | MSYS* | MINGW* )
76 | msys=true
77 | ;;
78 | NONSTOP* )
79 | nonstop=true
80 | ;;
81 | esac
82 |
83 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
84 |
85 |
86 | # Determine the Java command to use to start the JVM.
87 | if [ -n "$JAVA_HOME" ] ; then
88 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
89 | # IBM's JDK on AIX uses strange locations for the executables
90 | JAVACMD="$JAVA_HOME/jre/sh/java"
91 | else
92 | JAVACMD="$JAVA_HOME/bin/java"
93 | fi
94 | if [ ! -x "$JAVACMD" ] ; then
95 | die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
96 |
97 | Please set the JAVA_HOME variable in your environment to match the
98 | location of your Java installation."
99 | fi
100 | else
101 | JAVACMD="java"
102 | which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
103 |
104 | Please set the JAVA_HOME variable in your environment to match the
105 | location of your Java installation."
106 | fi
107 |
108 | # Increase the maximum file descriptors if we can.
109 | if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
110 | MAX_FD_LIMIT=`ulimit -H -n`
111 | if [ $? -eq 0 ] ; then
112 | if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
113 | MAX_FD="$MAX_FD_LIMIT"
114 | fi
115 | ulimit -n $MAX_FD
116 | if [ $? -ne 0 ] ; then
117 | warn "Could not set maximum file descriptor limit: $MAX_FD"
118 | fi
119 | else
120 | warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
121 | fi
122 | fi
123 |
124 | # For Darwin, add options to specify how the application appears in the dock
125 | if $darwin; then
126 | GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
127 | fi
128 |
129 | # For Cygwin or MSYS, switch paths to Windows format before running java
130 | if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
131 | APP_HOME=`cygpath --path --mixed "$APP_HOME"`
132 | CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
133 |
134 | JAVACMD=`cygpath --unix "$JAVACMD"`
135 |
136 | # We build the pattern for arguments to be converted via cygpath
137 | ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
138 | SEP=""
139 | for dir in $ROOTDIRSRAW ; do
140 | ROOTDIRS="$ROOTDIRS$SEP$dir"
141 | SEP="|"
142 | done
143 | OURCYGPATTERN="(^($ROOTDIRS))"
144 | # Add a user-defined pattern to the cygpath arguments
145 | if [ "$GRADLE_CYGPATTERN" != "" ] ; then
146 | OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
147 | fi
148 | # Now convert the arguments - kludge to limit ourselves to /bin/sh
149 | i=0
150 | for arg in "$@" ; do
151 | CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
152 | CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option
153 |
154 | if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition
155 | eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
156 | else
157 | eval `echo args$i`="\"$arg\""
158 | fi
159 | i=`expr $i + 1`
160 | done
161 | case $i in
162 | 0) set -- ;;
163 | 1) set -- "$args0" ;;
164 | 2) set -- "$args0" "$args1" ;;
165 | 3) set -- "$args0" "$args1" "$args2" ;;
166 | 4) set -- "$args0" "$args1" "$args2" "$args3" ;;
167 | 5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
168 | 6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
169 | 7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
170 | 8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
171 | 9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
172 | esac
173 | fi
174 |
175 | # Escape application args
176 | save () {
177 | for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
178 | echo " "
179 | }
180 | APP_ARGS=`save "$@"`
181 |
182 | # Collect all arguments for the java command, following the shell quoting and substitution rules
183 | eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
184 |
185 | exec "$JAVACMD" "$@"
186 |
--------------------------------------------------------------------------------
/gradlew.bat:
--------------------------------------------------------------------------------
1 | @rem
2 | @rem Copyright 2015 the original author or authors.
3 | @rem
4 | @rem Licensed under the Apache License, Version 2.0 (the "License");
5 | @rem you may not use this file except in compliance with the License.
6 | @rem You may obtain a copy of the License at
7 | @rem
8 | @rem https://www.apache.org/licenses/LICENSE-2.0
9 | @rem
10 | @rem Unless required by applicable law or agreed to in writing, software
11 | @rem distributed under the License is distributed on an "AS IS" BASIS,
12 | @rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | @rem See the License for the specific language governing permissions and
14 | @rem limitations under the License.
15 | @rem
16 |
17 | @if "%DEBUG%" == "" @echo off
18 | @rem ##########################################################################
19 | @rem
20 | @rem Gradle startup script for Windows
21 | @rem
22 | @rem ##########################################################################
23 |
24 | @rem Set local scope for the variables with windows NT shell
25 | if "%OS%"=="Windows_NT" setlocal
26 |
27 | set DIRNAME=%~dp0
28 | if "%DIRNAME%" == "" set DIRNAME=.
29 | set APP_BASE_NAME=%~n0
30 | set APP_HOME=%DIRNAME%
31 |
32 | @rem Resolve any "." and ".." in APP_HOME to make it shorter.
33 | for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
34 |
35 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
36 | set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
37 |
38 | @rem Find java.exe
39 | if defined JAVA_HOME goto findJavaFromJavaHome
40 |
41 | set JAVA_EXE=java.exe
42 | %JAVA_EXE% -version >NUL 2>&1
43 | if "%ERRORLEVEL%" == "0" goto execute
44 |
45 | echo.
46 | echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
47 | echo.
48 | echo Please set the JAVA_HOME variable in your environment to match the
49 | echo location of your Java installation.
50 |
51 | goto fail
52 |
53 | :findJavaFromJavaHome
54 | set JAVA_HOME=%JAVA_HOME:"=%
55 | set JAVA_EXE=%JAVA_HOME%/bin/java.exe
56 |
57 | if exist "%JAVA_EXE%" goto execute
58 |
59 | echo.
60 | echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
61 | echo.
62 | echo Please set the JAVA_HOME variable in your environment to match the
63 | echo location of your Java installation.
64 |
65 | goto fail
66 |
67 | :execute
68 | @rem Setup the command line
69 |
70 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
71 |
72 |
73 | @rem Execute Gradle
74 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
75 |
76 | :end
77 | @rem End local scope for the variables with windows NT shell
78 | if "%ERRORLEVEL%"=="0" goto mainEnd
79 |
80 | :fail
81 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
82 | rem the _cmd.exe /c_ return code!
83 | if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
84 | exit /b 1
85 |
86 | :mainEnd
87 | if "%OS%"=="Windows_NT" endlocal
88 |
89 | :omega
90 |
--------------------------------------------------------------------------------
/relinker/.gitignore:
--------------------------------------------------------------------------------
1 | /build
2 | *.iml
3 |
--------------------------------------------------------------------------------
/relinker/build.gradle:
--------------------------------------------------------------------------------
1 | apply plugin: 'com.android.library'
2 | apply plugin: 'com.vanniktech.maven.publish'
3 |
4 | android {
5 | compileSdkVersion 30
6 | compileOptions {
7 | sourceCompatibility JavaVersion.VERSION_1_8
8 | targetCompatibility JavaVersion.VERSION_1_8
9 | }
10 |
11 | defaultConfig {
12 | //noinspection MinSdkTooLow
13 | minSdkVersion 9
14 | }
15 | testOptions {
16 | unitTests.all {
17 | testLogging {
18 | exceptionFormat 'full'
19 | showStackTraces true
20 | showCauses true
21 | events "passed", "skipped", "failed", "standardOut", "standardError"
22 | }
23 | }
24 | }
25 | }
26 |
27 | dependencies {
28 | testImplementation "org.robolectric:robolectric:4.5.1"
29 | testImplementation 'junit:junit:4.13.2'
30 | testImplementation 'org.mockito:mockito-all:1.10.19'
31 | testImplementation 'org.hamcrest:hamcrest-all:1.3'
32 | }
33 |
34 | // build a jar with source files
35 | task sourcesJar(type: Jar) {
36 | from android.sourceSets.main.java.srcDirs
37 | classifier = 'sources'
38 | }
39 |
40 | task javadoc(type: Javadoc) {
41 | failOnError false
42 | source = android.sourceSets.main.java.sourceFiles
43 | classpath += project.files(android.getBootClasspath().join(File.pathSeparator))
44 | }
45 |
46 | // build a jar with javadoc
47 | task javadocJar(type: Jar, dependsOn: javadoc) {
48 | classifier = 'javadoc'
49 | from javadoc.destinationDir
50 | }
51 |
52 | artifacts {
53 | archives sourcesJar
54 | archives javadocJar
55 | }
56 |
--------------------------------------------------------------------------------
/relinker/src/main/AndroidManifest.xml:
--------------------------------------------------------------------------------
1 |
2 |
4 |
5 |
--------------------------------------------------------------------------------
/relinker/src/main/java/com/getkeepsafe/relinker/ApkLibraryInstaller.java:
--------------------------------------------------------------------------------
1 | /*
2 | * Copyright 2015 - 2016 KeepSafe Software, Inc.
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 | package com.getkeepsafe.relinker;
17 |
18 | import android.annotation.SuppressLint;
19 | import android.content.Context;
20 | import android.content.pm.ApplicationInfo;
21 | import android.os.Build;
22 |
23 | import java.io.Closeable;
24 | import java.io.File;
25 | import java.io.FileNotFoundException;
26 | import java.io.FileOutputStream;
27 | import java.io.IOException;
28 | import java.io.InputStream;
29 | import java.io.OutputStream;
30 | import java.util.Enumeration;
31 | import java.util.HashSet;
32 | import java.util.Set;
33 | import java.util.regex.Matcher;
34 | import java.util.regex.Pattern;
35 | import java.util.zip.ZipEntry;
36 | import java.util.zip.ZipFile;
37 |
38 | public class ApkLibraryInstaller implements ReLinker.LibraryInstaller {
39 | private static final int MAX_TRIES = 5;
40 | private static final int COPY_BUFFER_SIZE = 4096;
41 |
42 | private String[] sourceDirectories(final Context context) {
43 | final ApplicationInfo appInfo = context.getApplicationInfo();
44 |
45 | if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP &&
46 | appInfo.splitSourceDirs != null &&
47 | appInfo.splitSourceDirs.length != 0) {
48 | String[] apks = new String[appInfo.splitSourceDirs.length + 1];
49 | apks[0] = appInfo.sourceDir;
50 | System.arraycopy(appInfo.splitSourceDirs, 0, apks, 1, appInfo.splitSourceDirs.length);
51 | return apks;
52 | } else {
53 | return new String[] { appInfo.sourceDir };
54 | }
55 | }
56 |
57 | private static class ZipFileInZipEntry {
58 | public ZipFile zipFile;
59 | public ZipEntry zipEntry;
60 |
61 | public ZipFileInZipEntry(ZipFile zipFile, ZipEntry zipEntry) {
62 | this.zipFile = zipFile;
63 | this.zipEntry = zipEntry;
64 | }
65 | }
66 |
67 | private ZipFileInZipEntry findAPKWithLibrary(final Context context,
68 | final String[] abis,
69 | final String mappedLibraryName,
70 | final ReLinkerInstance instance) {
71 |
72 | for (String sourceDir : sourceDirectories(context)) {
73 | ZipFile zipFile = null;
74 | int tries = 0;
75 | while (tries++ < MAX_TRIES) {
76 | try {
77 | zipFile = new ZipFile(new File(sourceDir), ZipFile.OPEN_READ);
78 | break;
79 | } catch (IOException ignored) {
80 | }
81 | }
82 |
83 | if (zipFile == null) {
84 | continue;
85 | }
86 |
87 | tries = 0;
88 | while (tries++ < MAX_TRIES) {
89 | String jniNameInApk = null;
90 | ZipEntry libraryEntry = null;
91 |
92 | for (final String abi : abis) {
93 | jniNameInApk = "lib" + File.separatorChar + abi + File.separatorChar
94 | + mappedLibraryName;
95 |
96 | instance.log("Looking for %s in APK %s...", jniNameInApk, sourceDir);
97 |
98 | libraryEntry = zipFile.getEntry(jniNameInApk);
99 |
100 | if (libraryEntry != null) {
101 | return new ZipFileInZipEntry(zipFile, libraryEntry);
102 | }
103 | }
104 | }
105 |
106 | try {
107 | zipFile.close();
108 | } catch (IOException ignored) {
109 | }
110 | }
111 |
112 | return null;
113 | }
114 |
115 | // Loop over all APK's again in order to detect which ABI's are actually supported.
116 | // This second loop is more expensive than trying to find a specific ABI, so it should
117 | // only be ran when no matching libraries are found. This should keep the overhead of
118 | // the happy path to a minimum.
119 | private String[] getSupportedABIs(Context context, String mappedLibraryName) {
120 | String p = "lib" + File.separatorChar + "([^\\" + File.separatorChar + "]*)" + File.separatorChar + mappedLibraryName;
121 | Pattern pattern = Pattern.compile(p);
122 | ZipFile zipFile;
123 | Set supportedABIs = new HashSet();
124 | for (String sourceDir : sourceDirectories(context)) {
125 | try {
126 | zipFile = new ZipFile(new File(sourceDir), ZipFile.OPEN_READ);
127 | } catch (IOException ignored) {
128 | continue;
129 | }
130 |
131 | Enumeration elements = zipFile.entries();
132 | while (elements.hasMoreElements()) {
133 | ZipEntry el = elements.nextElement();
134 | Matcher match = pattern.matcher(el.getName());
135 | if (match.matches()) {
136 | supportedABIs.add(match.group(1));
137 | }
138 | }
139 | }
140 |
141 | String[] result = new String[supportedABIs.size()];
142 | return supportedABIs.toArray(result);
143 | }
144 |
145 | /**
146 | * Attempts to unpack the given library to the given destination. Implements retry logic for
147 | * IO operations to ensure they succeed.
148 | *
149 | * @param context {@link Context} to describe the location of the installed APK file
150 | * @param mappedLibraryName The mapped name of the library file to load
151 | */
152 | @SuppressLint ("SetWorldReadable")
153 | @SuppressWarnings("ResultOfMethodCallIgnored")
154 | @Override
155 | public void installLibrary(final Context context,
156 | final String[] abis,
157 | final String mappedLibraryName,
158 | final File destination,
159 | final ReLinkerInstance instance) {
160 | ZipFileInZipEntry found = null;
161 | try {
162 | found = findAPKWithLibrary(context, abis, mappedLibraryName, instance);
163 | if (found == null) {
164 | // Does not exist in any APK. Report exactly what ReLinker is looking for and
165 | // what is actually supported by the APK.
166 | String[] supportedABIs;
167 | try {
168 | supportedABIs = getSupportedABIs(context, mappedLibraryName);
169 | } catch (Exception e) {
170 | // Should never happen as this indicates a bug in ReLinker code, but just to be safe.
171 | // User code should only ever crash with a MissingLibraryException if getting this far.
172 | supportedABIs = new String[1];
173 | supportedABIs[0] = e.toString();
174 | }
175 | throw new MissingLibraryException(mappedLibraryName, abis, supportedABIs);
176 | }
177 |
178 | int tries = 0;
179 | while (tries++ < MAX_TRIES) {
180 | instance.log("Found %s! Extracting...", mappedLibraryName);
181 | try {
182 | if (!destination.exists() && !destination.createNewFile()) {
183 | continue;
184 | }
185 | } catch (IOException ignored) {
186 | // Try again
187 | continue;
188 | }
189 |
190 | InputStream inputStream = null;
191 | FileOutputStream fileOut = null;
192 | try {
193 | inputStream = found.zipFile.getInputStream(found.zipEntry);
194 | fileOut = new FileOutputStream(destination);
195 | final long written = copy(inputStream, fileOut);
196 | fileOut.getFD().sync();
197 | if (written != destination.length()) {
198 | // File was not written entirely... Try again
199 | continue;
200 | }
201 | } catch (FileNotFoundException e) {
202 | // Try again
203 | continue;
204 | } catch (IOException e) {
205 | // Try again
206 | continue;
207 | } finally {
208 | closeSilently(inputStream);
209 | closeSilently(fileOut);
210 | }
211 |
212 | // Change permission to rwxr-xr-x
213 | destination.setReadable(true, false);
214 | destination.setExecutable(true, false);
215 | destination.setWritable(true);
216 | return;
217 | }
218 |
219 | instance.log("FATAL! Couldn't extract the library from the APK!");
220 | } finally {
221 | try {
222 | if (found != null && found.zipFile != null) {
223 | found.zipFile.close();
224 | }
225 | } catch (IOException ignored) {}
226 | }
227 | }
228 |
229 | /**
230 | * Copies all data from an {@link InputStream} to an {@link OutputStream}.
231 | *
232 | * @param in The stream to read from.
233 | * @param out The stream to write to.
234 | * @throws IOException when a stream operation fails.
235 | * @return The actual number of bytes copied
236 | */
237 | private long copy(InputStream in, OutputStream out) throws IOException {
238 | long copied = 0;
239 | byte[] buf = new byte[COPY_BUFFER_SIZE];
240 | while (true) {
241 | int read = in.read(buf);
242 | if (read == -1) {
243 | break;
244 | }
245 | out.write(buf, 0, read);
246 | copied += read;
247 | }
248 | out.flush();
249 | return copied;
250 | }
251 |
252 | /**
253 | * Closes a {@link Closeable} silently (without throwing or handling any exceptions)
254 | * @param closeable {@link Closeable} to close
255 | */
256 | private void closeSilently(final Closeable closeable) {
257 | try {
258 | if (closeable != null) {
259 | closeable.close();
260 | }
261 | } catch (IOException ignored) {}
262 | }
263 | }
264 |
--------------------------------------------------------------------------------
/relinker/src/main/java/com/getkeepsafe/relinker/MissingLibraryException.java:
--------------------------------------------------------------------------------
1 | /*
2 | * Copyright 2015 - 2016 KeepSafe Software, Inc.
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 | package com.getkeepsafe.relinker;
17 |
18 | import java.util.Arrays;
19 |
20 | public class MissingLibraryException extends RuntimeException {
21 | public MissingLibraryException(final String library, final String[] wantedABIs, final String[] supportedABIs) {
22 | super("Could not find '" + library + "'. " +
23 | "Looked for: " + Arrays.toString(wantedABIs) + ", " +
24 | "but only found: " + Arrays.toString(supportedABIs) + ".");
25 | }
26 | }
27 |
--------------------------------------------------------------------------------
/relinker/src/main/java/com/getkeepsafe/relinker/ReLinker.java:
--------------------------------------------------------------------------------
1 | /*
2 | * Copyright 2015 - 2016 KeepSafe Software, Inc.
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 | package com.getkeepsafe.relinker;
17 |
18 | import android.content.Context;
19 |
20 | import java.io.File;
21 |
22 | /**
23 | * ReLinker is a small library to help alleviate {@link UnsatisfiedLinkError} exceptions thrown due
24 | * to Android's inability to properly install / load native libraries for Android versions before
25 | * API 23.
26 | */
27 | public class ReLinker {
28 | public interface LoadListener {
29 | void success();
30 | void failure(Throwable t);
31 | }
32 |
33 | public interface Logger {
34 | void log(String message);
35 | }
36 |
37 | public interface LibraryLoader {
38 | void loadLibrary(String libraryName);
39 | void loadPath(String libraryPath);
40 | String mapLibraryName(String libraryName);
41 | String unmapLibraryName(String mappedLibraryName);
42 | String[] supportedAbis();
43 | }
44 |
45 | public interface LibraryInstaller {
46 | void installLibrary(Context context, String[] abis, String mappedLibraryName,
47 | File destination, ReLinkerInstance logger);
48 | }
49 |
50 | public static void loadLibrary(final Context context, final String library) {
51 | loadLibrary(context, library, null, null);
52 | }
53 |
54 | public static void loadLibrary(final Context context,
55 | final String library,
56 | final String version) {
57 | loadLibrary(context, library, version, null);
58 | }
59 |
60 | public static void loadLibrary(final Context context,
61 | final String library,
62 | final LoadListener listener) {
63 | loadLibrary(context, library, null, listener);
64 | }
65 |
66 | public static void loadLibrary(final Context context,
67 | final String library,
68 | final String version,
69 | final ReLinker.LoadListener listener) {
70 | new ReLinkerInstance().loadLibrary(context, library, version, listener);
71 | }
72 |
73 | public static ReLinkerInstance force() {
74 | return new ReLinkerInstance().force();
75 | }
76 |
77 | public static ReLinkerInstance log(final Logger logger) {
78 | return new ReLinkerInstance().log(logger);
79 | }
80 |
81 | public static ReLinkerInstance recursively() {
82 | return new ReLinkerInstance().recursively();
83 | }
84 |
85 | private ReLinker() {}
86 | }
87 |
--------------------------------------------------------------------------------
/relinker/src/main/java/com/getkeepsafe/relinker/ReLinkerInstance.java:
--------------------------------------------------------------------------------
1 | /*
2 | * Copyright 2015 - 2016 KeepSafe Software, Inc.
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 | package com.getkeepsafe.relinker;
17 |
18 | import android.content.Context;
19 | import android.util.Log;
20 |
21 | import com.getkeepsafe.relinker.elf.ElfParser;
22 |
23 | import java.io.File;
24 | import java.io.FilenameFilter;
25 | import java.io.IOException;
26 | import java.util.HashSet;
27 | import java.util.List;
28 | import java.util.Locale;
29 | import java.util.Set;
30 |
31 | public class ReLinkerInstance {
32 | private static final String LIB_DIR = "lib";
33 |
34 | protected final Set loadedLibraries = new HashSet();
35 | protected final ReLinker.LibraryLoader libraryLoader;
36 | protected final ReLinker.LibraryInstaller libraryInstaller;
37 |
38 | protected boolean force;
39 | protected boolean recursive;
40 | protected ReLinker.Logger logger;
41 |
42 | protected ReLinkerInstance() {
43 | this(new SystemLibraryLoader(), new ApkLibraryInstaller());
44 | }
45 |
46 | protected ReLinkerInstance(final ReLinker.LibraryLoader libraryLoader,
47 | final ReLinker.LibraryInstaller libraryInstaller) {
48 | if (libraryLoader == null) {
49 | throw new IllegalArgumentException("Cannot pass null library loader");
50 | }
51 |
52 | if (libraryInstaller == null) {
53 | throw new IllegalArgumentException("Cannot pass null library installer");
54 | }
55 |
56 | this.libraryLoader = libraryLoader;
57 | this.libraryInstaller = libraryInstaller;
58 | }
59 |
60 | /**
61 | * Logs debugging related information to the {@link ReLinker.Logger} instance given
62 | */
63 | public ReLinkerInstance log(final ReLinker.Logger logger) {
64 | this.logger = logger;
65 | return this;
66 | }
67 |
68 | /**
69 | * Forces any previously extracted / re-linked libraries to be cleaned up before loading
70 | */
71 | public ReLinkerInstance force() {
72 | this.force = true;
73 | return this;
74 | }
75 |
76 | /**
77 | * Enables recursive library loading to resolve and load shared object -> shared object
78 | * defined dependencies
79 | */
80 | public ReLinkerInstance recursively() {
81 | this.recursive = true;
82 | return this;
83 | }
84 |
85 | /**
86 | * Utilizes the regular system call to attempt to load a native library. If a failure occurs,
87 | * then the function extracts native .so library out of the app's APK and attempts to load it.
88 | *
89 | * Note: This is a synchronous operation
90 | */
91 | public void loadLibrary(final Context context, final String library) {
92 | loadLibrary(context, library, null, null);
93 | }
94 |
95 | /**
96 | * The same call as {@link #loadLibrary(Context, String)}, however if a {@code version} is
97 | * provided, then that specific version of the given library is loaded.
98 | */
99 | public void loadLibrary(final Context context, final String library, final String version) {
100 | loadLibrary(context, library, version, null);
101 | }
102 |
103 | /**
104 | * The same call as {@link #loadLibrary(Context, String)}, however if a
105 | * {@link ReLinker.LoadListener} is provided, the function is executed asynchronously.
106 | */
107 | public void loadLibrary(final Context context,
108 | final String library,
109 | final ReLinker.LoadListener listener) {
110 | loadLibrary(context, library, null, listener);
111 | }
112 |
113 | /**
114 | * Attemps to load the given library normally. If that fails, it loads the library utilizing
115 | * a workaround.
116 | *
117 | * @param context The {@link Context} to get a workaround directory from
118 | * @param library The library you wish to load
119 | * @param version The version of the library you wish to load, or {@code null}
120 | * @param listener {@link ReLinker.LoadListener} to listen for async execution, or {@code null}
121 | */
122 | public void loadLibrary(final Context context,
123 | final String library,
124 | final String version,
125 | final ReLinker.LoadListener listener) {
126 | if (context == null) {
127 | throw new IllegalArgumentException("Given context is null");
128 | }
129 |
130 | if (TextUtils.isEmpty(library)) {
131 | throw new IllegalArgumentException("Given library is either null or empty");
132 | }
133 |
134 | log("Beginning load of %s...", library);
135 | if (listener == null) {
136 | loadLibraryInternal(context, library, version);
137 | } else {
138 | new Thread(new Runnable() {
139 | @Override
140 | public void run() {
141 | try {
142 | loadLibraryInternal(context, library, version);
143 | listener.success();
144 | } catch (UnsatisfiedLinkError e) {
145 | listener.failure(e);
146 | } catch (MissingLibraryException e) {
147 | listener.failure(e);
148 | }
149 | }
150 | }).start();
151 | }
152 | }
153 |
154 | private void loadLibraryInternal(final Context context,
155 | final String library,
156 | final String version) {
157 | if (loadedLibraries.contains(library) && !force) {
158 | log("%s already loaded previously!", library);
159 | return;
160 | }
161 |
162 | try {
163 | libraryLoader.loadLibrary(library);
164 | loadedLibraries.add(library);
165 | log("%s (%s) was loaded normally!", library, version);
166 | return;
167 | } catch (final UnsatisfiedLinkError e) {
168 | // :-(
169 | log("Loading the library normally failed: %s", Log.getStackTraceString(e));
170 | }
171 |
172 | log("%s (%s) was not loaded normally, re-linking...", library, version);
173 | final File workaroundFile = getWorkaroundLibFile(context, library, version);
174 | if (!workaroundFile.exists() || force) {
175 | if (force) {
176 | log("Forcing a re-link of %s (%s)...", library, version);
177 | }
178 |
179 | cleanupOldLibFiles(context, library, version);
180 | libraryInstaller.installLibrary(context, libraryLoader.supportedAbis(),
181 | libraryLoader.mapLibraryName(library), workaroundFile, this);
182 | }
183 |
184 | try {
185 | if (recursive) {
186 | ElfParser parser = null;
187 | final List dependencies;
188 | try {
189 | parser = new ElfParser(workaroundFile);
190 | dependencies = parser.parseNeededDependencies();
191 | } finally {
192 | if (parser != null) {
193 | parser.close();
194 | }
195 | }
196 | for (final String dependency : dependencies) {
197 | loadLibrary(context, libraryLoader.unmapLibraryName(dependency));
198 | }
199 | }
200 | } catch (IOException ignored) {
201 | // This a redundant step of the process, if our library resolving fails, it will likely
202 | // be picked up by the system's resolver, if not, an exception will be thrown by the
203 | // next statement, so its better to try twice.
204 | }
205 |
206 | libraryLoader.loadPath(workaroundFile.getAbsolutePath());
207 | loadedLibraries.add(library);
208 | log("%s (%s) was re-linked!", library, version);
209 | }
210 |
211 | /**
212 | * @param context {@link Context} to describe the location of it's private directories
213 | * @return A {@link File} locating the directory that can store extracted libraries
214 | * for later use
215 | */
216 | protected File getWorkaroundLibDir(final Context context) {
217 | return context.getDir(LIB_DIR, Context.MODE_PRIVATE);
218 | }
219 |
220 | /**
221 | * @param context {@link Context} to retrieve the workaround directory from
222 | * @param library The name of the library to load
223 | * @param version The version of the library to load or {@code null}
224 | * @return A {@link File} locating the workaround library file to load
225 | */
226 | protected File getWorkaroundLibFile(final Context context,
227 | final String library,
228 | final String version) {
229 | final String libName = libraryLoader.mapLibraryName(library);
230 |
231 | if (TextUtils.isEmpty(version)) {
232 | return new File(getWorkaroundLibDir(context), libName);
233 | }
234 |
235 | return new File(getWorkaroundLibDir(context), libName + "." + version);
236 | }
237 |
238 | /**
239 | * Cleans up any other versions of the {@code library}. If {@code force} is used, all
240 | * versions of the {@code library} are deleted
241 | *
242 | * @param context {@link Context} to retrieve the workaround directory from
243 | * @param library The name of the library to load
244 | * @param currentVersion The version of the library to keep, all other versions will be deleted.
245 | * This parameter is ignored if {@code force} is used.
246 | */
247 | protected void cleanupOldLibFiles(final Context context,
248 | final String library,
249 | final String currentVersion) {
250 | final File workaroundDir = getWorkaroundLibDir(context);
251 | final File workaroundFile = getWorkaroundLibFile(context, library, currentVersion);
252 | final String mappedLibraryName = libraryLoader.mapLibraryName(library);
253 | final File[] existingFiles = workaroundDir.listFiles(new FilenameFilter() {
254 | @Override
255 | public boolean accept(File dir, String filename) {
256 | return filename.startsWith(mappedLibraryName);
257 | }
258 | });
259 |
260 | if (existingFiles == null) return;
261 |
262 | for (final File file : existingFiles) {
263 | if (force || !file.getAbsolutePath().equals(workaroundFile.getAbsolutePath())) {
264 | file.delete();
265 | }
266 | }
267 | }
268 |
269 | public void log(final String format, final Object... args) {
270 | log(String.format(Locale.US, format, args));
271 | }
272 |
273 | public void log(final String message) {
274 | if (logger != null) {
275 | logger.log(message);
276 | }
277 | }
278 | }
279 |
--------------------------------------------------------------------------------
/relinker/src/main/java/com/getkeepsafe/relinker/SystemLibraryLoader.java:
--------------------------------------------------------------------------------
1 | /*
2 | * Copyright 2015 - 2016 KeepSafe Software, Inc.
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 | package com.getkeepsafe.relinker;
17 |
18 | import android.annotation.SuppressLint;
19 | import android.os.Build;
20 |
21 | @SuppressWarnings("deprecation")
22 | final class SystemLibraryLoader implements ReLinker.LibraryLoader {
23 | @Override
24 | public void loadLibrary(final String libraryName) {
25 | System.loadLibrary(libraryName);
26 | }
27 |
28 | @SuppressLint ("UnsafeDynamicallyLoadedCode")
29 | @Override
30 | public void loadPath(final String libraryPath) {
31 | System.load(libraryPath);
32 | }
33 |
34 | @Override
35 | public String mapLibraryName(final String libraryName) {
36 | if (libraryName.startsWith("lib") && libraryName.endsWith(".so")) {
37 | // Already mapped
38 | return libraryName;
39 | }
40 |
41 | return System.mapLibraryName(libraryName);
42 | }
43 |
44 | @Override
45 | public String unmapLibraryName(String mappedLibraryName) {
46 | // Assuming libname.so
47 | return mappedLibraryName.substring(3, mappedLibraryName.length() - 3);
48 | }
49 |
50 | @Override
51 | public String[] supportedAbis() {
52 | if (Build.VERSION.SDK_INT >= 21 && Build.SUPPORTED_ABIS.length > 0) {
53 | return Build.SUPPORTED_ABIS;
54 | } else if (!TextUtils.isEmpty(Build.CPU_ABI2)) {
55 | return new String[] {Build.CPU_ABI, Build.CPU_ABI2};
56 | } else {
57 | return new String[] {Build.CPU_ABI};
58 | }
59 | }
60 | }
61 |
--------------------------------------------------------------------------------
/relinker/src/main/java/com/getkeepsafe/relinker/TextUtils.java:
--------------------------------------------------------------------------------
1 | /*
2 | * Copyright 2015 - 2016 KeepSafe Software, Inc.
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 | package com.getkeepsafe.relinker;
17 |
18 | /**
19 | * Slimmed down version of https://developer.android.com/reference/android/text/TextUtils.html to
20 | * avoid depending on android.text.TextUtils.
21 | */
22 | final class TextUtils {
23 | private TextUtils() {
24 | }
25 |
26 | /**
27 | * Returns true if the string is null or 0-length.
28 | *
29 | * @param str the string to be examined
30 | * @return true if str is null or zero length
31 | */
32 | public static boolean isEmpty(CharSequence str) {
33 | return str == null || str.length() == 0;
34 | }
35 | }
36 |
--------------------------------------------------------------------------------
/relinker/src/main/java/com/getkeepsafe/relinker/elf/Dynamic32Structure.java:
--------------------------------------------------------------------------------
1 | /**
2 | * Copyright 2015 - 2016 KeepSafe Software, Inc.
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 | package com.getkeepsafe.relinker.elf;
17 |
18 | import java.io.IOException;
19 | import java.nio.ByteBuffer;
20 | import java.nio.ByteOrder;
21 |
22 | public class Dynamic32Structure extends Elf.DynamicStructure {
23 | public Dynamic32Structure(final ElfParser parser, final Elf.Header header,
24 | long baseOffset, final int index) throws IOException {
25 | final ByteBuffer buffer = ByteBuffer.allocate(4);
26 | buffer.order(header.bigEndian ? ByteOrder.BIG_ENDIAN : ByteOrder.LITTLE_ENDIAN);
27 |
28 | baseOffset = baseOffset + (index * 8);
29 | tag = parser.readWord(buffer, baseOffset);
30 | val = parser.readWord(buffer, baseOffset + 0x4);
31 | }
32 | }
33 |
--------------------------------------------------------------------------------
/relinker/src/main/java/com/getkeepsafe/relinker/elf/Dynamic64Structure.java:
--------------------------------------------------------------------------------
1 | /**
2 | * Copyright 2015 - 2016 KeepSafe Software, Inc.
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 | package com.getkeepsafe.relinker.elf;
17 |
18 | import java.io.IOException;
19 | import java.nio.ByteBuffer;
20 | import java.nio.ByteOrder;
21 |
22 | public class Dynamic64Structure extends Elf.DynamicStructure {
23 | public Dynamic64Structure(final ElfParser parser, final Elf.Header header,
24 | long baseOffset, final int index) throws IOException {
25 | final ByteBuffer buffer = ByteBuffer.allocate(8);
26 | buffer.order(header.bigEndian ? ByteOrder.BIG_ENDIAN : ByteOrder.LITTLE_ENDIAN);
27 |
28 | baseOffset = baseOffset + (index * 16);
29 | tag = parser.readLong(buffer, baseOffset);
30 | val = parser.readLong(buffer, baseOffset + 0x8);
31 | }
32 | }
33 |
--------------------------------------------------------------------------------
/relinker/src/main/java/com/getkeepsafe/relinker/elf/Elf.java:
--------------------------------------------------------------------------------
1 | /**
2 | * Copyright 2015 - 2016 KeepSafe Software, Inc.
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 | package com.getkeepsafe.relinker.elf;
17 |
18 | import java.io.IOException;
19 |
20 | public interface Elf {
21 | abstract class Header {
22 | public static final int ELFCLASS32 = 1; // 32 Bit ELF
23 | public static final int ELFCLASS64 = 2; // 64 Bit ELF
24 | public static final int ELFDATA2MSB = 2; // Big Endian, 2s complement
25 |
26 | public boolean bigEndian;
27 | public int type;
28 | public long phoff;
29 | public long shoff;
30 | public int phentsize;
31 | public int phnum;
32 | public int shentsize;
33 | public int shnum;
34 | public int shstrndx;
35 |
36 | abstract public Elf.SectionHeader getSectionHeader(int index) throws IOException;
37 | abstract public Elf.ProgramHeader getProgramHeader(long index) throws IOException;
38 | abstract public Elf.DynamicStructure getDynamicStructure(long baseOffset, int index)
39 | throws IOException;
40 | }
41 |
42 | abstract class ProgramHeader {
43 | public static final int PT_LOAD = 1; // Loadable segment
44 | public static final int PT_DYNAMIC = 2; // Dynamic linking information
45 |
46 | public long type;
47 | public long offset;
48 | public long vaddr;
49 | public long memsz;
50 | }
51 |
52 | abstract class SectionHeader {
53 | public long info;
54 | }
55 |
56 | abstract class DynamicStructure {
57 | public static final int DT_NULL = 0; // Marks end of structure list
58 | public static final int DT_NEEDED = 1; // Needed library
59 | public static final int DT_STRTAB = 5; // String table
60 |
61 | public long tag;
62 | public long val; // Union with d_ptr
63 | }
64 | }
65 |
--------------------------------------------------------------------------------
/relinker/src/main/java/com/getkeepsafe/relinker/elf/Elf32Header.java:
--------------------------------------------------------------------------------
1 | /**
2 | * Copyright 2015 - 2016 KeepSafe Software, Inc.
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 | package com.getkeepsafe.relinker.elf;
17 |
18 | import java.io.IOException;
19 | import java.nio.ByteBuffer;
20 | import java.nio.ByteOrder;
21 |
22 | public class Elf32Header extends Elf.Header {
23 | private final ElfParser parser;
24 |
25 | public Elf32Header(final boolean bigEndian, final ElfParser parser) throws IOException {
26 | this.bigEndian = bigEndian;
27 | this.parser = parser;
28 |
29 | final ByteBuffer buffer = ByteBuffer.allocate(4);
30 | buffer.order(bigEndian ? ByteOrder.BIG_ENDIAN : ByteOrder.LITTLE_ENDIAN);
31 |
32 | type = parser.readHalf(buffer, 0x10);
33 | phoff = parser.readWord(buffer, 0x1C);
34 | shoff = parser.readWord(buffer, 0x20);
35 | phentsize = parser.readHalf(buffer, 0x2A);
36 | phnum = parser.readHalf(buffer, 0x2C);
37 | shentsize = parser.readHalf(buffer, 0x2E);
38 | shnum = parser.readHalf(buffer, 0x30);
39 | shstrndx = parser.readHalf(buffer, 0x32);
40 | }
41 |
42 | @Override
43 | public Elf.SectionHeader getSectionHeader(final int index) throws IOException {
44 | return new Section32Header(parser, this, index);
45 | }
46 |
47 | @Override
48 | public Elf.ProgramHeader getProgramHeader(final long index) throws IOException {
49 | return new Program32Header(parser, this, index);
50 | }
51 |
52 | @Override
53 | public Elf.DynamicStructure getDynamicStructure(final long baseOffset, final int index)
54 | throws IOException {
55 | return new Dynamic32Structure(parser, this, baseOffset, index);
56 | }
57 | }
58 |
--------------------------------------------------------------------------------
/relinker/src/main/java/com/getkeepsafe/relinker/elf/Elf64Header.java:
--------------------------------------------------------------------------------
1 | /**
2 | * Copyright 2015 - 2016 KeepSafe Software, Inc.
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 | package com.getkeepsafe.relinker.elf;
17 |
18 | import java.io.IOException;
19 | import java.nio.ByteBuffer;
20 | import java.nio.ByteOrder;
21 |
22 | public class Elf64Header extends Elf.Header {
23 | private final ElfParser parser;
24 |
25 | public Elf64Header(final boolean bigEndian, final ElfParser parser) throws IOException {
26 | this.bigEndian = bigEndian;
27 | this.parser = parser;
28 |
29 | final ByteBuffer buffer = ByteBuffer.allocate(8);
30 | buffer.order(bigEndian ? ByteOrder.BIG_ENDIAN : ByteOrder.LITTLE_ENDIAN);
31 |
32 | type = parser.readHalf(buffer, 0x10);
33 | phoff = parser.readLong(buffer, 0x20);
34 | shoff = parser.readLong(buffer, 0x28);
35 | phentsize = parser.readHalf(buffer, 0x36);
36 | phnum = parser.readHalf(buffer, 0x38);
37 | shentsize = parser.readHalf(buffer, 0x3A);
38 | shnum = parser.readHalf(buffer, 0x3C);
39 | shstrndx = parser.readHalf(buffer, 0x3E);
40 | }
41 |
42 | @Override
43 | public Elf.SectionHeader getSectionHeader(final int index) throws IOException {
44 | return new Section64Header(parser, this, index);
45 | }
46 |
47 | @Override
48 | public Elf.ProgramHeader getProgramHeader(final long index) throws IOException {
49 | return new Program64Header(parser, this, index);
50 | }
51 |
52 | @Override
53 | public Elf.DynamicStructure getDynamicStructure(final long baseOffset, final int index)
54 | throws IOException {
55 | return new Dynamic64Structure(parser, this, baseOffset, index);
56 | }
57 | }
58 |
--------------------------------------------------------------------------------
/relinker/src/main/java/com/getkeepsafe/relinker/elf/ElfParser.java:
--------------------------------------------------------------------------------
1 | /**
2 | * Copyright 2015 - 2016 KeepSafe Software, Inc.
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 | package com.getkeepsafe.relinker.elf;
17 |
18 | import java.io.Closeable;
19 | import java.io.EOFException;
20 | import java.io.File;
21 | import java.io.FileInputStream;
22 | import java.io.FileNotFoundException;
23 | import java.io.IOException;
24 | import java.nio.ByteBuffer;
25 | import java.nio.ByteOrder;
26 | import java.nio.channels.FileChannel;
27 | import java.util.ArrayList;
28 | import java.util.Collections;
29 | import java.util.List;
30 |
31 | public class ElfParser implements Closeable, Elf {
32 | private final int MAGIC = 0x464C457F;
33 | private final FileChannel channel;
34 |
35 | public ElfParser(final File file) throws FileNotFoundException {
36 | if (file == null || !file.exists()) {
37 | throw new IllegalArgumentException("File is null or does not exist");
38 | }
39 |
40 | final FileInputStream inputStream = new FileInputStream(file);
41 | this.channel = inputStream.getChannel();
42 | }
43 |
44 | public Elf.Header parseHeader() throws IOException {
45 | channel.position(0L);
46 |
47 | // Read in ELF identification to determine file class and endianness
48 | final ByteBuffer buffer = ByteBuffer.allocate(8);
49 | buffer.order(ByteOrder.LITTLE_ENDIAN);
50 | if (readWord(buffer, 0) != MAGIC) {
51 | throw new IllegalArgumentException("Invalid ELF Magic!");
52 | }
53 |
54 | final short fileClass = readByte(buffer, 0x4);
55 | final boolean bigEndian = (readByte(buffer, 0x5) == Header.ELFDATA2MSB);
56 | if (fileClass == Header.ELFCLASS32) {
57 | return new Elf32Header(bigEndian, this);
58 | } else if (fileClass == Header.ELFCLASS64) {
59 | return new Elf64Header(bigEndian, this);
60 | }
61 |
62 | throw new IllegalStateException("Invalid class type!");
63 | }
64 |
65 | public List parseNeededDependencies() throws IOException {
66 | channel.position(0);
67 | final List dependencies = new ArrayList();
68 | final Elf.Header header = parseHeader();
69 | final ByteBuffer buffer = ByteBuffer.allocate(8);
70 | buffer.order(header.bigEndian ? ByteOrder.BIG_ENDIAN : ByteOrder.LITTLE_ENDIAN);
71 |
72 | long numProgramHeaderEntries = header.phnum;
73 | if (numProgramHeaderEntries == 0xFFFF) {
74 | /**
75 | * Extended Numbering
76 | *
77 | * If the real number of program header table entries is larger than
78 | * or equal to PN_XNUM(0xffff), it is set to sh_info field of the
79 | * section header at index 0, and PN_XNUM is set to e_phnum
80 | * field. Otherwise, the section header at index 0 is zero
81 | * initialized, if it exists.
82 | **/
83 | final Elf.SectionHeader sectionHeader = header.getSectionHeader(0);
84 | numProgramHeaderEntries = sectionHeader.info;
85 | }
86 |
87 | long dynamicSectionOff = 0;
88 | for (long i = 0; i < numProgramHeaderEntries; ++i) {
89 | final Elf.ProgramHeader programHeader = header.getProgramHeader(i);
90 | if (programHeader.type == ProgramHeader.PT_DYNAMIC) {
91 | dynamicSectionOff = programHeader.offset;
92 | break;
93 | }
94 | }
95 |
96 | if (dynamicSectionOff == 0) {
97 | // No dynamic linking info, nothing to load
98 | return Collections.unmodifiableList(dependencies);
99 | }
100 |
101 | int i = 0;
102 | final List neededOffsets = new ArrayList();
103 | long vStringTableOff = 0;
104 | Elf.DynamicStructure dynStructure;
105 | do {
106 | dynStructure = header.getDynamicStructure(dynamicSectionOff, i);
107 | if (dynStructure.tag == DynamicStructure.DT_NEEDED) {
108 | neededOffsets.add(dynStructure.val);
109 | } else if (dynStructure.tag == DynamicStructure.DT_STRTAB) {
110 | vStringTableOff = dynStructure.val; // d_ptr union
111 | }
112 | ++i;
113 | } while (dynStructure.tag != DynamicStructure.DT_NULL);
114 |
115 | if (vStringTableOff == 0) {
116 | throw new IllegalStateException("String table offset not found!");
117 | }
118 |
119 | // Map to file offset
120 | final long stringTableOff = offsetFromVma(header, numProgramHeaderEntries, vStringTableOff);
121 | for (final Long strOff : neededOffsets) {
122 | dependencies.add(readString(buffer, stringTableOff + strOff));
123 | }
124 |
125 | return dependencies;
126 | }
127 |
128 | private long offsetFromVma(final Elf.Header header, final long numEntries, final long vma)
129 | throws IOException {
130 | for (long i = 0; i < numEntries; ++i) {
131 | final Elf.ProgramHeader programHeader = header.getProgramHeader(i);
132 | if (programHeader.type == ProgramHeader.PT_LOAD) {
133 | // Within memsz instead of filesz to be more tolerant
134 | if (programHeader.vaddr <= vma
135 | && vma <= programHeader.vaddr + programHeader.memsz) {
136 | return vma - programHeader.vaddr + programHeader.offset;
137 | }
138 | }
139 | }
140 |
141 | throw new IllegalStateException("Could not map vma to file offset!");
142 | }
143 |
144 | @Override
145 | public void close() throws IOException {
146 | this.channel.close();
147 | }
148 |
149 | protected String readString(final ByteBuffer buffer, long offset) throws IOException {
150 | final StringBuilder builder = new StringBuilder();
151 | short c;
152 | while ((c = readByte(buffer, offset++)) != 0) {
153 | builder.append((char) c);
154 | }
155 |
156 | return builder.toString();
157 | }
158 |
159 | protected long readLong(final ByteBuffer buffer, final long offset) throws IOException {
160 | read(buffer, offset, 8);
161 | return buffer.getLong();
162 | }
163 |
164 | protected long readWord(final ByteBuffer buffer, final long offset) throws IOException {
165 | read(buffer, offset, 4);
166 | return buffer.getInt() & 0xFFFFFFFFL;
167 | }
168 |
169 | protected int readHalf(final ByteBuffer buffer, final long offset) throws IOException {
170 | read(buffer, offset, 2);
171 | return buffer.getShort() & 0xFFFF;
172 | }
173 |
174 | protected short readByte(final ByteBuffer buffer, final long offset) throws IOException {
175 | read(buffer, offset, 1);
176 | return (short) (buffer.get() & 0xFF);
177 | }
178 |
179 | protected void read(final ByteBuffer buffer, long offset, final int length) throws IOException {
180 | buffer.position(0);
181 | buffer.limit(length);
182 | long bytesRead = 0;
183 | while (bytesRead < length) {
184 | final int read = channel.read(buffer, offset + bytesRead);
185 | if (read == -1) {
186 | throw new EOFException();
187 | }
188 |
189 | bytesRead += read;
190 | }
191 | buffer.position(0);
192 | }
193 | }
194 |
--------------------------------------------------------------------------------
/relinker/src/main/java/com/getkeepsafe/relinker/elf/Program32Header.java:
--------------------------------------------------------------------------------
1 | /**
2 | * Copyright 2015 - 2016 KeepSafe Software, Inc.
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 | package com.getkeepsafe.relinker.elf;
17 |
18 | import java.io.IOException;
19 | import java.nio.ByteBuffer;
20 | import java.nio.ByteOrder;
21 |
22 | public class Program32Header extends Elf.ProgramHeader {
23 | public Program32Header(final ElfParser parser, final Elf.Header header, final long index)
24 | throws IOException {
25 | final ByteBuffer buffer = ByteBuffer.allocate(4);
26 | buffer.order(header.bigEndian ? ByteOrder.BIG_ENDIAN : ByteOrder.LITTLE_ENDIAN);
27 |
28 | final long baseOffset = header.phoff + (index * header.phentsize);
29 | type = parser.readWord(buffer, baseOffset);
30 | offset = parser.readWord(buffer, baseOffset + 0x4);
31 | vaddr = parser.readWord(buffer, baseOffset + 0x8);
32 | memsz = parser.readWord(buffer, baseOffset + 0x14);
33 | }
34 | }
35 |
--------------------------------------------------------------------------------
/relinker/src/main/java/com/getkeepsafe/relinker/elf/Program64Header.java:
--------------------------------------------------------------------------------
1 | /**
2 | * Copyright 2015 - 2016 KeepSafe Software, Inc.
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 | package com.getkeepsafe.relinker.elf;
17 |
18 | import java.io.IOException;
19 | import java.nio.ByteBuffer;
20 | import java.nio.ByteOrder;
21 |
22 | public class Program64Header extends Elf.ProgramHeader {
23 | public Program64Header(final ElfParser parser, final Elf.Header header, final long index)
24 | throws IOException {
25 | final ByteBuffer buffer = ByteBuffer.allocate(8);
26 | buffer.order(header.bigEndian ? ByteOrder.BIG_ENDIAN : ByteOrder.LITTLE_ENDIAN);
27 |
28 | final long baseOffset = header.phoff + (index * header.phentsize);
29 | type = parser.readWord(buffer, baseOffset);
30 | offset = parser.readLong(buffer, baseOffset + 0x8);
31 | vaddr = parser.readLong(buffer, baseOffset + 0x10);
32 | memsz = parser.readLong(buffer, baseOffset + 0x28);
33 | }
34 | }
35 |
--------------------------------------------------------------------------------
/relinker/src/main/java/com/getkeepsafe/relinker/elf/Section32Header.java:
--------------------------------------------------------------------------------
1 | /**
2 | * Copyright 2015 - 2016 KeepSafe Software, Inc.
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 | package com.getkeepsafe.relinker.elf;
17 |
18 | import java.io.IOException;
19 | import java.nio.ByteBuffer;
20 | import java.nio.ByteOrder;
21 |
22 | public class Section32Header extends Elf.SectionHeader {
23 | public Section32Header(final ElfParser parser, final Elf.Header header, final int index)
24 | throws IOException {
25 | final ByteBuffer buffer = ByteBuffer.allocate(4);
26 | buffer.order(header.bigEndian ? ByteOrder.BIG_ENDIAN : ByteOrder.LITTLE_ENDIAN);
27 |
28 | info = parser.readWord(buffer, header.shoff + (index * header.shentsize) + 0x1C);
29 | }
30 | }
31 |
--------------------------------------------------------------------------------
/relinker/src/main/java/com/getkeepsafe/relinker/elf/Section64Header.java:
--------------------------------------------------------------------------------
1 | /**
2 | * Copyright 2015 - 2016 KeepSafe Software, Inc.
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 | package com.getkeepsafe.relinker.elf;
17 |
18 | import java.io.IOException;
19 | import java.nio.ByteBuffer;
20 | import java.nio.ByteOrder;
21 |
22 | public class Section64Header extends Elf.SectionHeader {
23 | public Section64Header(final ElfParser parser, final Elf.Header header, final int index)
24 | throws IOException {
25 | final ByteBuffer buffer = ByteBuffer.allocate(8);
26 | buffer.order(header.bigEndian ? ByteOrder.BIG_ENDIAN : ByteOrder.LITTLE_ENDIAN);
27 |
28 | info = parser.readWord(buffer, header.shoff + (index * header.shentsize) + 0x2C);
29 | }
30 | }
31 |
--------------------------------------------------------------------------------
/relinker/src/test/java/com/getkeepsafe/relinker/ApkLibraryInstallerTest.java:
--------------------------------------------------------------------------------
1 | /**
2 | * Copyright 2015 - 2016 KeepSafe Software, Inc.
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 | package com.getkeepsafe.relinker;
17 |
18 | import android.content.Context;
19 | import android.content.pm.ApplicationInfo;
20 |
21 | import org.junit.Before;
22 | import org.junit.Rule;
23 | import org.junit.Test;
24 | import org.junit.rules.TemporaryFolder;
25 |
26 | import java.io.EOFException;
27 | import java.io.File;
28 | import java.io.FileInputStream;
29 | import java.io.IOException;
30 |
31 | import static org.hamcrest.MatcherAssert.assertThat;
32 | import static org.hamcrest.core.Is.is;
33 | import static org.junit.Assert.assertEquals;
34 | import static org.mockito.Mockito.mock;
35 | import static org.mockito.Mockito.verify;
36 | import static org.mockito.Mockito.when;
37 |
38 | public class ApkLibraryInstallerTest {
39 | @Rule
40 | public TemporaryFolder tempFolder = new TemporaryFolder();
41 |
42 | @Before
43 | public void setUp() throws IOException {
44 | tempFolder.create();
45 | }
46 |
47 | @Test
48 | public void installsCorrectly() throws IOException {
49 | final Context context = mock(Context.class);
50 | final ApplicationInfo appInfo = mock(ApplicationInfo.class);
51 | final ReLinkerInstance instance = mock(ReLinkerInstance.class);
52 | final ApkLibraryInstaller installer = new ApkLibraryInstaller();
53 | final File destination = tempFolder.newFile("test");
54 | final String[] abis = new String[] {"x86"};
55 |
56 | when(context.getApplicationInfo()).thenReturn(appInfo);
57 | appInfo.sourceDir = getClass().getResource("/fake.apk").getFile();
58 |
59 | installer.installLibrary(context, abis, "libtest.so", destination, instance);
60 | verify(context).getApplicationInfo();
61 | assertThat(fileToString(destination), is("works!"));
62 | }
63 |
64 | @Test
65 | public void throwsMissingLibraryExceptionWhenABIIsMissing() throws IOException {
66 | final Context context = mock(Context.class);
67 | final ApplicationInfo appInfo = mock(ApplicationInfo.class);
68 | final ReLinkerInstance instance = mock(ReLinkerInstance.class);
69 | final ApkLibraryInstaller installer = new ApkLibraryInstaller();
70 | final File destination = tempFolder.newFile("test");
71 | final String[] abis = new String[] {"armeabi-v7a"}; // For unit test running on a developer machine this is normally x86
72 |
73 | when(context.getApplicationInfo()).thenReturn(appInfo);
74 | appInfo.sourceDir = getClass().getResource("/fake.apk").getFile();
75 |
76 | try {
77 | installer.installLibrary(context, abis, "libtest.so", destination, instance);
78 | } catch (MissingLibraryException e) {
79 | assertEquals("Could not find 'libtest.so'. Looked for: [armeabi-v7a], but only found: [x86].", e.getMessage());
80 | }
81 | }
82 |
83 | private String fileToString(final File file) throws IOException {
84 | final long size = file.length();
85 | if (size > Integer.MAX_VALUE) {
86 | throw new IOException("Can't read a file larger than Integer.MAX_VALUE");
87 | }
88 |
89 | final byte[] data = new byte[(int) size];
90 | final FileInputStream in = new FileInputStream(file);
91 | try {
92 | int bytesRead = 0;
93 | while (bytesRead < size) {
94 | int read = in.read(data, bytesRead, (int) size - bytesRead);
95 | if (read == -1) {
96 | throw new EOFException();
97 | }
98 | bytesRead += read;
99 | }
100 |
101 | return new String(data);
102 | } finally {
103 | in.close();
104 | }
105 | }
106 | }
107 |
--------------------------------------------------------------------------------
/relinker/src/test/java/com/getkeepsafe/relinker/ApkLibraryInstallerWithSplitsTest.java:
--------------------------------------------------------------------------------
1 | package com.getkeepsafe.relinker;
2 |
3 | import android.content.Context;
4 | import android.content.pm.ApplicationInfo;
5 | import android.os.Build;
6 |
7 | import org.junit.Before;
8 | import org.junit.Rule;
9 | import org.junit.Test;
10 | import org.junit.rules.TemporaryFolder;
11 | import org.junit.runner.RunWith;
12 | import org.mockito.Mock;
13 | import org.mockito.MockitoAnnotations;
14 | import org.robolectric.RobolectricTestRunner;
15 | import org.robolectric.annotation.Config;
16 |
17 | import java.io.EOFException;
18 | import java.io.File;
19 | import java.io.FileInputStream;
20 | import java.io.IOException;
21 |
22 | import static org.hamcrest.MatcherAssert.assertThat;
23 | import static org.hamcrest.core.Is.is;
24 | import static org.mockito.Mockito.verify;
25 | import static org.mockito.Mockito.when;
26 |
27 |
28 | @RunWith(RobolectricTestRunner.class)
29 | @Config(sdk = Build.VERSION_CODES.LOLLIPOP)
30 | public class ApkLibraryInstallerWithSplitsTest {
31 |
32 | @Rule
33 | public TemporaryFolder tempFolder = new TemporaryFolder();
34 |
35 | @Mock Context context;
36 |
37 | @Mock ApplicationInfo applicationInfo;
38 |
39 | @Mock ReLinkerInstance instance;
40 |
41 | private final String[] abis = new String[]{"x86"};
42 |
43 | private ApkLibraryInstaller subject;
44 |
45 | @Before
46 | public void setUp() throws IOException {
47 | MockitoAnnotations.initMocks(this);
48 | tempFolder.create();
49 | subject = new ApkLibraryInstaller();
50 | }
51 |
52 | @Test
53 | public void nullSplitSourceDirInstallCorrectly() throws IOException {
54 | final File destination = tempFolder.newFile("null-test");
55 |
56 | applicationInfo.sourceDir = getClass().getResource("/fake.apk").getFile();
57 | applicationInfo.splitSourceDirs = null;
58 | when(context.getApplicationInfo()).thenReturn(applicationInfo);
59 |
60 | subject.installLibrary(context, abis, "libtest.so", destination, instance);
61 | verify(context).getApplicationInfo();
62 | assertThat(fileToString(destination), is("works!"));
63 | }
64 |
65 | @Test
66 | public void emptySplitSourceDirInstallCorrectly() throws IOException {
67 | final File destination = tempFolder.newFile("empty-test");
68 |
69 | applicationInfo.sourceDir = getClass().getResource("/fake.apk").getFile();
70 | applicationInfo.splitSourceDirs = new String[]{};
71 | when(context.getApplicationInfo()).thenReturn(applicationInfo);
72 |
73 | subject.installLibrary(context, abis, "libtest.so", destination, instance);
74 | verify(context).getApplicationInfo();
75 | assertThat(fileToString(destination), is("works!"));
76 | }
77 |
78 | @Test
79 | public void apkSplitsInstallCorrectly() throws IOException {
80 | final File destination = tempFolder.newFile("split-test");
81 |
82 | applicationInfo.sourceDir = "/fake/path/nolib.apk";
83 | String actualApk = getClass().getResource("/fake.apk").getFile();
84 | applicationInfo.splitSourceDirs = new String[]{"/another/fake/path/nolib.apk", actualApk};
85 | when(context.getApplicationInfo()).thenReturn(applicationInfo);
86 |
87 | subject.installLibrary(context, abis, "libtest.so", destination, instance);
88 | verify(context).getApplicationInfo();
89 | assertThat(fileToString(destination), is("works!"));
90 | }
91 |
92 | private String fileToString(final File file) throws IOException {
93 | final long size = file.length();
94 | if (size > Integer.MAX_VALUE) {
95 | throw new IOException("Can't read a file larger than Integer.MAX_VALUE");
96 | }
97 |
98 | final byte[] data = new byte[(int) size];
99 | final FileInputStream in = new FileInputStream(file);
100 | try {
101 | int bytesRead = 0;
102 | while (bytesRead < size) {
103 | int read = in.read(data, bytesRead, (int) size - bytesRead);
104 | if (read == -1) {
105 | throw new EOFException();
106 | }
107 | bytesRead += read;
108 | }
109 |
110 | return new String(data);
111 | } finally {
112 | in.close();
113 | }
114 | }
115 | }
116 |
--------------------------------------------------------------------------------
/relinker/src/test/java/com/getkeepsafe/relinker/ReLinkerInstanceTest.java:
--------------------------------------------------------------------------------
1 | /**
2 | * Copyright 2015 - 2016 KeepSafe Software, Inc.
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 | package com.getkeepsafe.relinker;
17 |
18 |
19 | import android.content.Context;
20 |
21 | import org.junit.Before;
22 | import org.junit.Rule;
23 | import org.junit.Test;
24 | import org.junit.rules.TemporaryFolder;
25 | import org.junit.runner.RunWith;
26 | import org.mockito.Mock;
27 | import org.robolectric.RobolectricTestRunner;
28 |
29 | import java.io.File;
30 | import java.io.IOException;
31 |
32 | import static org.hamcrest.MatcherAssert.assertThat;
33 | import static org.hamcrest.core.Is.is;
34 | import static org.mockito.Matchers.anyString;
35 | import static org.mockito.Mockito.doThrow;
36 | import static org.mockito.Mockito.times;
37 | import static org.mockito.Mockito.verify;
38 | import static org.mockito.Mockito.when;
39 | import static org.mockito.MockitoAnnotations.initMocks;
40 |
41 | @RunWith(RobolectricTestRunner.class)
42 | public class ReLinkerInstanceTest {
43 | private static final String TEST_LIB = "mylib";
44 | private static final String TEST_LIB_MAPPED = "libmylib.so";
45 | private static final String TEST_DIR = "lib";
46 |
47 | @Mock
48 | Context context;
49 | @Mock
50 | ReLinker.LibraryLoader testLoader;
51 | @Mock
52 | ReLinker.LibraryInstaller testInstaller;
53 | @Rule
54 | public TemporaryFolder tempFolder = new TemporaryFolder();
55 |
56 | private File libDir;
57 |
58 | @Before
59 | public void setUp() throws IOException {
60 | initMocks(this);
61 | tempFolder.create();
62 | libDir = tempFolder.getRoot();
63 | when(context.getDir(TEST_DIR, Context.MODE_PRIVATE)).thenReturn(libDir);
64 | when(testLoader.mapLibraryName(TEST_LIB)).thenReturn(TEST_LIB_MAPPED);
65 | }
66 |
67 | @Test
68 | public void getsCorrectWorkaroundDirectory() {
69 | final ReLinkerInstance instance = new ReLinkerInstance(testLoader, testInstaller);
70 | assertThat(instance.getWorkaroundLibDir(context), is(libDir));
71 | }
72 |
73 | @Test
74 | public void getsCorrectWorkaroundFile() {
75 | final ReLinkerInstance instance = new ReLinkerInstance(testLoader, testInstaller);
76 | final String libName = testLoader.mapLibraryName(TEST_LIB);
77 | final File libFile = new File(libDir, libName);
78 | assertThat(instance.getWorkaroundLibFile(context, TEST_LIB, null), is(libFile));
79 |
80 | final File versionedLibFile = new File(libDir, libName + ".2.0");
81 | assertThat(instance.getWorkaroundLibFile(context, TEST_LIB, "2.0"), is(versionedLibFile));
82 | }
83 |
84 | @Test
85 | public void cleansupOldLibraryFiles() throws IOException {
86 | final ReLinkerInstance instance = new ReLinkerInstance(testLoader, testInstaller);
87 | final String mappedName = testLoader.mapLibraryName(TEST_LIB);
88 | tempFolder.newFile(mappedName);
89 | tempFolder.newFile(mappedName + ".2.0");
90 | tempFolder.newFile(mappedName + ".3.4");
91 | tempFolder.newFile(mappedName + ".4.0");
92 |
93 | assertThat(libDir.listFiles().length, is(4));
94 | instance.cleanupOldLibFiles(context, TEST_LIB, "4.0");
95 | assertThat(libDir.listFiles().length, is(1));
96 |
97 | tempFolder.newFile(mappedName);
98 | tempFolder.newFile(mappedName + ".2.0");
99 | tempFolder.newFile(mappedName + ".3.4");
100 | assertThat(libDir.listFiles().length, is(4));
101 | instance.cleanupOldLibFiles(context, TEST_LIB, null);
102 | assertThat(libDir.listFiles().length, is(1));
103 |
104 | tempFolder.newFile(mappedName + ".2.0");
105 | tempFolder.newFile(mappedName + ".3.4");
106 | tempFolder.newFile(mappedName + ".4.0");
107 | assertThat(libDir.listFiles().length, is(4));
108 | instance.force().cleanupOldLibFiles(context, TEST_LIB, "4.0");
109 | assertThat(libDir.listFiles().length, is(0));
110 | }
111 |
112 | @Test
113 | public void loadsLibraryNormally() {
114 | final ReLinkerInstance instance = new ReLinkerInstance(testLoader, testInstaller);
115 | instance.loadLibrary(context, TEST_LIB);
116 | }
117 |
118 | @Test
119 | public void relinksLibrary() {
120 | final ReLinkerInstance instance = new ReLinkerInstance(testLoader, testInstaller);
121 | final File workaroundFile = new File(libDir.getAbsolutePath(), TEST_LIB_MAPPED);
122 | final String[] abis = new String[] {"x86"};
123 |
124 | doThrow(new UnsatisfiedLinkError("boo")).when(testLoader).loadLibrary(anyString());
125 | when(testLoader.supportedAbis()).thenReturn(abis);
126 |
127 | instance.loadLibrary(context, TEST_LIB);
128 | verify(testLoader).loadLibrary(TEST_LIB);
129 | verify(testLoader).loadPath(workaroundFile.getAbsolutePath());
130 | verify(testLoader).supportedAbis();
131 | verify(testInstaller).installLibrary(context, abis, TEST_LIB_MAPPED, workaroundFile, instance);
132 |
133 | instance.force().loadLibrary(context, TEST_LIB);
134 | verify(testLoader, times(2)).loadLibrary(TEST_LIB);
135 | verify(testLoader, times(2)).loadPath(workaroundFile.getAbsolutePath());
136 | verify(testLoader, times(2)).supportedAbis();
137 | verify(testInstaller, times(2)).installLibrary(
138 | context, abis, TEST_LIB_MAPPED, workaroundFile, instance);
139 | }
140 | }
141 |
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/relinker/src/test/java/com/getkeepsafe/relinker/elf/ElfParserTest.java:
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1 | package com.getkeepsafe.relinker.elf;
2 |
3 | import org.junit.After;
4 | import org.junit.Test;
5 |
6 | import java.io.File;
7 | import java.io.IOException;
8 |
9 | public class ElfParserTest {
10 | ElfParser elfParser;
11 |
12 | @After
13 | public void tearDown() throws Exception {
14 | if (elfParser != null)
15 | elfParser.close();
16 | }
17 |
18 | @Test
19 | public void testParseDependenciesDoesNotThrowIllegalArgException() throws IOException {
20 | elfParser = new ElfParser(new File(getClass().getClassLoader().getResource("libdl.so").getFile()));
21 | elfParser.parseNeededDependencies();
22 | }
23 | }
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/relinker/src/test/resources/fake.apk:
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https://raw.githubusercontent.com/KeepSafe/ReLinker/41a5e0ce54a171b4633380404bb99dece01a6582/relinker/src/test/resources/fake.apk
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/relinker/src/test/resources/libdl.so:
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https://raw.githubusercontent.com/KeepSafe/ReLinker/41a5e0ce54a171b4633380404bb99dece01a6582/relinker/src/test/resources/libdl.so
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/relinker/src/test/resources/robolectric.properties:
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1 | sdk=16
2 | constants=com.getkeepsafe.relinker.BuildConfig
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/sample/.gitignore:
--------------------------------------------------------------------------------
1 | /build
2 | /src/main/obj
3 |
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/sample/build.gradle:
--------------------------------------------------------------------------------
1 | apply plugin: 'com.android.application'
2 |
3 | repositories {
4 | mavenCentral()
5 | }
6 |
7 | android {
8 | compileSdkVersion 30
9 |
10 | sourceSets {
11 | main {
12 | jniLibs.srcDirs = ['src/main/libs']
13 | jni.srcDirs = []
14 | }
15 | }
16 | defaultConfig {
17 | applicationId "com.getkeepsafe.relinker.sample"
18 | //noinspection MinSdkTooLow
19 | minSdkVersion 9
20 | targetSdkVersion 30
21 | versionCode 1
22 | versionName "1.0"
23 | }
24 | buildTypes {
25 | release {
26 | minifyEnabled false
27 | proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
28 | }
29 | }
30 | }
31 |
32 | dependencies {
33 | implementation project(':relinker')
34 | testImplementation 'junit:junit:4.13.2'
35 | }
36 |
37 |
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/sample/proguard-rules.pro:
--------------------------------------------------------------------------------
1 | # Add project specific ProGuard rules here.
2 | # By default, the flags in this file are appended to flags specified
3 | # in /Users/xiphirx/Documents/dev/android-sdk-macosx/tools/proguard/proguard-android.txt
4 | # You can edit the include path and order by changing the proguardFiles
5 | # directive in build.gradle.
6 | #
7 | # For more details, see
8 | # http://developer.android.com/guide/developing/tools/proguard.html
9 |
10 | # Add any project specific keep options here:
11 |
12 | # If your project uses WebView with JS, uncomment the following
13 | # and specify the fully qualified class name to the JavaScript interface
14 | # class:
15 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview {
16 | # public *;
17 | #}
18 |
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/sample/src/main/AndroidManifest.xml:
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1 |
2 |
4 |
5 |
12 |
13 |
14 |
15 |
16 |
17 |
18 |
19 |
20 |
21 |
22 |
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/sample/src/main/java/com/getkeepsafe/relinker/sample/App.java:
--------------------------------------------------------------------------------
1 | package com.getkeepsafe.relinker.sample;
2 |
3 | import android.app.Application;
4 | import android.content.Context;
5 |
6 | public class App extends Application {
7 | public static Context sContext;
8 |
9 | @Override
10 | public void onCreate() {
11 | super.onCreate();
12 | sContext = this;
13 | }
14 | }
15 |
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/sample/src/main/java/com/getkeepsafe/relinker/sample/MainActivity.java:
--------------------------------------------------------------------------------
1 | package com.getkeepsafe.relinker.sample;
2 |
3 | import android.app.Activity;
4 | import android.content.Context;
5 | import android.os.Bundle;
6 | import android.util.Log;
7 | import android.view.View;
8 | import android.widget.EditText;
9 | import android.widget.TextView;
10 | import android.widget.Toast;
11 |
12 | import com.getkeepsafe.relinker.ReLinker;
13 | import com.getkeepsafe.relinker.elf.Elf;
14 | import com.getkeepsafe.relinker.elf.ElfParser;
15 |
16 | import java.io.DataOutputStream;
17 | import java.io.File;
18 | import java.io.IOException;
19 | import java.util.List;
20 | import java.util.Locale;
21 |
22 | public class MainActivity extends Activity {
23 | private File mLibDir;
24 | private File mWorkaroundDir;
25 |
26 | private EditText version;
27 |
28 | private ReLinker.Logger logcatLogger = new ReLinker.Logger() {
29 | @Override
30 | public void log(String message) {
31 | Log.d("ReLinker", message);
32 | }
33 | };
34 |
35 | @Override
36 | protected void onCreate(Bundle savedInstanceState) {
37 | super.onCreate(savedInstanceState);
38 | setContentView(R.layout.activity_main);
39 | }
40 |
41 | @Override
42 | protected void onResume() {
43 | super.onResume();
44 | mLibDir = new File(getApplicationInfo().nativeLibraryDir);
45 | mWorkaroundDir = getDir("lib", Context.MODE_PRIVATE);
46 | updateTree();
47 |
48 | findViewById(R.id.call).setOnClickListener(new View.OnClickListener() {
49 | @Override
50 | public void onClick(View v) {
51 | call();
52 | }
53 | });
54 |
55 | findViewById(R.id.delete).setOnClickListener(new View.OnClickListener() {
56 | @Override
57 | public void onClick(View v) {
58 | try {
59 | final Process process = Runtime.getRuntime().exec("su");
60 | final DataOutputStream stream = new DataOutputStream(process.getOutputStream());
61 | stream.writeBytes("rm -r " + mLibDir.getAbsolutePath() + "\n");
62 | stream.writeBytes("rm -r " + mWorkaroundDir.getAbsolutePath() + "\n");
63 | stream.writeBytes("exit\n");
64 | stream.flush();
65 | process.waitFor();
66 |
67 | updateTree();
68 | Runtime.getRuntime().exit(0);
69 | } catch (Throwable e) {
70 | Toast.makeText(MainActivity.this, "You do not have root!", Toast.LENGTH_LONG).show();
71 | }
72 | }
73 | });
74 |
75 | version = (EditText) findViewById(R.id.version);
76 | }
77 |
78 | private void call() {
79 | try {
80 | ((TextView) findViewById(R.id.text)).setText(Native.helloJni());
81 | updateTree();
82 | } catch (UnsatisfiedLinkError e) {
83 | final String libVersion = version.getText().toString();
84 | ReLinker.log(logcatLogger)
85 | .force()
86 | .recursively()
87 | .loadLibrary(MainActivity.this, "hellojni", libVersion,
88 | new ReLinker.LoadListener() {
89 | @Override
90 | public void success() {
91 | runOnUiThread(new Runnable() {
92 | @Override
93 | public void run() {
94 | ((TextView) findViewById(R.id.text)).setText(Native.helloJni());
95 | updateTree();
96 | }
97 | });
98 |
99 | new Thread(new Runnable() {
100 | @Override
101 | public void run() {
102 | try {
103 | final String file;
104 | if (libVersion.length() > 0) {
105 | file = "libhellojni.so." + libVersion;
106 | } else {
107 | file = "libhellojni.so";
108 | }
109 | final File filesDir = getDir("lib", MODE_PRIVATE);
110 | final File lib = new File(filesDir, file);
111 | if (!lib.exists()) return;
112 |
113 | final ElfParser parser = new ElfParser(lib);
114 | final List deps = parser.parseNeededDependencies();
115 | final StringBuilder builder = new StringBuilder("Library dependencies:\n");
116 | for (final String str : deps) {
117 | builder.append(str).append(", ");
118 | }
119 | runOnUiThread(new Runnable() {
120 | @Override
121 | public void run() {
122 | ((TextView) findViewById(R.id.deps)).setText(builder.toString());
123 | }
124 | });
125 | } catch (IOException e) {
126 | e.printStackTrace();
127 | }
128 | }
129 | }).start();
130 | }
131 |
132 | @Override
133 | public void failure(Throwable t) {
134 | runOnUiThread(new Runnable() {
135 | @Override
136 | public void run() {
137 | ((TextView) findViewById(R.id.text)).setText(
138 | "Couldn't load! Report this issue to the github please!");
139 | }
140 | });
141 | }
142 | });
143 | }
144 | }
145 |
146 | private void updateTree() {
147 | final File[] files = mLibDir.listFiles();
148 | final StringBuilder builder = new StringBuilder();
149 | builder.append("Current files in the standard lib directory: ");
150 | if (files != null) {
151 | for (final File file : files) {
152 | builder.append(file.getName()).append(", ");
153 | }
154 | }
155 |
156 | builder.append("\n\nCurrent files in the ReLinker lib directory: ");
157 | final File[] relinkerFiles = mWorkaroundDir.listFiles();
158 | if (relinkerFiles != null) {
159 | for (final File file : relinkerFiles) {
160 | builder.append(file.getName()).append(", ");
161 | }
162 | }
163 |
164 | ((TextView) findViewById(R.id.tree)).setText(builder.toString());
165 | }
166 | }
167 |
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/sample/src/main/java/com/getkeepsafe/relinker/sample/Native.java:
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1 | package com.getkeepsafe.relinker.sample;
2 |
3 | public class Native {
4 | public static native String helloJni();
5 | }
6 |
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/sample/src/main/jni/Android.mk:
--------------------------------------------------------------------------------
1 | include $(call all-subdir-makefiles)
2 |
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/sample/src/main/jni/Application.mk:
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1 | APP_ABI := armeabi armeabi-v7a x86
2 | APP_MODULES := hello hellojni
3 | APP_PLATFORM := android-9
4 |
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/sample/src/main/jni/hello/Android.mk:
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1 | LOCAL_PATH:= $(call my-dir)
2 |
3 | include $(CLEAR_VARS)
4 |
5 | LOCAL_MODULE := hello
6 | LOCAL_SRC_FILES := hello.cpp
7 |
8 | include $(BUILD_SHARED_LIBRARY)
9 |
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/sample/src/main/jni/hello/hello.cpp:
--------------------------------------------------------------------------------
1 | extern "C" const char* hello() {
2 | return "Hello from the JNI!";
3 | }
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/sample/src/main/jni/hello/hello.h:
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1 | extern "C" const char* hello();
2 |
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/sample/src/main/jni/hellojni/.DS_Store:
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https://raw.githubusercontent.com/KeepSafe/ReLinker/41a5e0ce54a171b4633380404bb99dece01a6582/sample/src/main/jni/hellojni/.DS_Store
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/sample/src/main/jni/hellojni/Android.mk:
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1 | LOCAL_PATH:= $(call my-dir)
2 |
3 | include $(CLEAR_VARS)
4 |
5 | LOCAL_MODULE := hellojni
6 | LOCAL_SRC_FILES := hellojni.cpp
7 | LOCAL_SHARED_LIBRARIES := libhello
8 |
9 | include $(BUILD_SHARED_LIBRARY)
10 |
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/sample/src/main/jni/hellojni/hellojni.cpp:
--------------------------------------------------------------------------------
1 | #include
2 | #include "../hello/hello.h"
3 |
4 | extern "C"
5 | {
6 | JNIEXPORT jstring
7 | JNICALL Java_com_getkeepsafe_relinker_sample_Native_helloJni(JNIEnv *env, jclass clazz) {
8 | return env->NewStringUTF(hello());
9 | }
10 | }
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/sample/src/main/libs/armeabi-v7a/libhello.so:
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https://raw.githubusercontent.com/KeepSafe/ReLinker/41a5e0ce54a171b4633380404bb99dece01a6582/sample/src/main/libs/armeabi-v7a/libhello.so
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/sample/src/main/libs/armeabi-v7a/libhellojni.so:
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https://raw.githubusercontent.com/KeepSafe/ReLinker/41a5e0ce54a171b4633380404bb99dece01a6582/sample/src/main/libs/armeabi-v7a/libhellojni.so
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/sample/src/main/libs/armeabi/libhello.so:
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https://raw.githubusercontent.com/KeepSafe/ReLinker/41a5e0ce54a171b4633380404bb99dece01a6582/sample/src/main/libs/armeabi/libhello.so
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/sample/src/main/libs/armeabi/libhellojni.so:
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https://raw.githubusercontent.com/KeepSafe/ReLinker/41a5e0ce54a171b4633380404bb99dece01a6582/sample/src/main/libs/armeabi/libhellojni.so
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/sample/src/main/libs/x86/libhello.so:
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https://raw.githubusercontent.com/KeepSafe/ReLinker/41a5e0ce54a171b4633380404bb99dece01a6582/sample/src/main/libs/x86/libhello.so
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/sample/src/main/libs/x86/libhellojni.so:
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https://raw.githubusercontent.com/KeepSafe/ReLinker/41a5e0ce54a171b4633380404bb99dece01a6582/sample/src/main/libs/x86/libhellojni.so
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/sample/src/main/res/layout/activity_main.xml:
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1 |
2 |
11 |
12 |
18 |
19 |
23 |
24 |
29 |
30 |
35 |
36 |
37 |
38 |
42 |
43 |
47 |
48 |
53 |
54 |
55 |
56 |
60 |
61 |
66 |
67 |
72 |
73 |
74 |
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/sample/src/main/res/mipmap-hdpi/ic_launcher.png:
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https://raw.githubusercontent.com/KeepSafe/ReLinker/41a5e0ce54a171b4633380404bb99dece01a6582/sample/src/main/res/mipmap-hdpi/ic_launcher.png
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/sample/src/main/res/mipmap-mdpi/ic_launcher.png:
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https://raw.githubusercontent.com/KeepSafe/ReLinker/41a5e0ce54a171b4633380404bb99dece01a6582/sample/src/main/res/mipmap-mdpi/ic_launcher.png
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/sample/src/main/res/mipmap-xhdpi/ic_launcher.png:
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https://raw.githubusercontent.com/KeepSafe/ReLinker/41a5e0ce54a171b4633380404bb99dece01a6582/sample/src/main/res/mipmap-xhdpi/ic_launcher.png
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/sample/src/main/res/mipmap-xxhdpi/ic_launcher.png:
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https://raw.githubusercontent.com/KeepSafe/ReLinker/41a5e0ce54a171b4633380404bb99dece01a6582/sample/src/main/res/mipmap-xxhdpi/ic_launcher.png
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/sample/src/main/res/mipmap-xxxhdpi/ic_launcher.png:
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https://raw.githubusercontent.com/KeepSafe/ReLinker/41a5e0ce54a171b4633380404bb99dece01a6582/sample/src/main/res/mipmap-xxxhdpi/ic_launcher.png
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/sample/src/main/res/values-w820dp/dimens.xml:
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1 |
2 |
5 | 64dp
6 |
7 |
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/sample/src/main/res/values/colors.xml:
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1 |
2 |
3 | #3F51B5
4 | #303F9F
5 | #FF4081
6 |
7 |
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/sample/src/main/res/values/dimens.xml:
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1 |
2 |
3 | 16dp
4 | 16dp
5 |
6 |
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/sample/src/main/res/values/strings.xml:
--------------------------------------------------------------------------------
1 |
2 | ReLinker
3 |
4 |
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/sample/src/main/res/values/styles.xml:
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1 |
2 |
3 |
4 |
5 |
6 |
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/sample/src/test/java/com/getkeepsafe/relinker/ExampleUnitTest.java:
--------------------------------------------------------------------------------
1 | package com.getkeepsafe.relinker;
2 |
3 | import org.junit.Test;
4 |
5 | import static org.junit.Assert.*;
6 |
7 | /**
8 | * To work on unit tests, switch the Test Artifact in the Build Variants view.
9 | */
10 | public class ExampleUnitTest {
11 | @Test
12 | public void addition_isCorrect() throws Exception {
13 | assertEquals(4, 2 + 2);
14 | }
15 | }
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/settings.gradle:
--------------------------------------------------------------------------------
1 | include ':sample', ':relinker'
2 |
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