├── .gitignore ├── .idea ├── compiler.xml ├── copyright │ └── profiles_settings.xml ├── dictionaries │ └── kiva.xml ├── encodings.xml ├── gradle.xml ├── inspectionProfiles │ ├── Project_Default.xml │ └── profiles_settings.xml ├── misc.xml └── modules.xml ├── README.md ├── app ├── .gitignore ├── build.gradle ├── proguard-rules.pro └── src │ ├── androidTest │ └── java │ │ └── com │ │ └── kiva │ │ └── bootimg │ │ └── ExampleInstrumentationTest.java │ ├── main │ ├── AndroidManifest.xml │ └── res │ │ ├── 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 │ │ ├── colors.xml │ │ ├── strings.xml │ │ └── styles.xml │ └── test │ └── java │ └── com │ └── kiva │ └── bootimg │ └── ExampleUnitTest.java ├── build.gradle ├── gradle.properties ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── gradlew ├── gradlew.bat ├── jbootimage ├── .gitignore ├── build.gradle └── src │ └── main │ └── java │ └── com │ └── kiva │ ├── BootImage.java │ ├── BootImageInfo.java │ ├── BootType.java │ ├── ByteArray.java │ ├── Constant.java │ ├── IOUtils.java │ ├── MTKContacts.java │ ├── Main.java │ └── ramdisk │ ├── MTKRamdisk.java │ ├── QualcommRamdisk.java │ ├── Ramdisk.java │ ├── RamdiskFactory.java │ ├── RamdiskProcessor.java │ ├── RamdiskType.java │ └── processor │ └── GZipRamdiskProcessor.java └── settings.gradle /.gitignore: -------------------------------------------------------------------------------- 1 | *.iml 2 | .gradle 3 | /local.properties 4 | /.idea/workspace.xml 5 | /.idea/libraries 6 | .DS_Store 7 | /build 8 | /captures 9 | -------------------------------------------------------------------------------- /.idea/compiler.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | -------------------------------------------------------------------------------- /.idea/copyright/profiles_settings.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | -------------------------------------------------------------------------------- /.idea/dictionaries/kiva.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | cpio 5 | lzma 6 | lzop 7 | ramdisk 8 | 9 | 10 | -------------------------------------------------------------------------------- /.idea/encodings.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | -------------------------------------------------------------------------------- /.idea/gradle.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 18 | 19 | -------------------------------------------------------------------------------- /.idea/inspectionProfiles/Project_Default.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 14 | -------------------------------------------------------------------------------- /.idea/inspectionProfiles/profiles_settings.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 7 | -------------------------------------------------------------------------------- /.idea/misc.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 19 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | Android 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 62 | -------------------------------------------------------------------------------- /.idea/modules.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # JBootImage 2 | A Java library that can pack & unpack android boot.img 3 | -------------------------------------------------------------------------------- /app/.gitignore: -------------------------------------------------------------------------------- 1 | /build 2 | -------------------------------------------------------------------------------- /app/build.gradle: -------------------------------------------------------------------------------- 1 | apply plugin: 'com.android.application' 2 | 3 | android { 4 | compileSdkVersion 23 5 | buildToolsVersion "23.0.3" 6 | defaultConfig { 7 | applicationId "com.kiva.bootimg" 8 | minSdkVersion 15 9 | targetSdkVersion 23 10 | versionCode 1 11 | versionName "1.0" 12 | testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner" 13 | } 14 | buildTypes { 15 | release { 16 | minifyEnabled false 17 | proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' 18 | } 19 | } 20 | } 21 | 22 | dependencies { 23 | compile fileTree(dir: 'libs', include: ['*.jar']) 24 | compile 'com.android.support:appcompat-v7:23.4.0' 25 | testCompile 'junit:junit:4.12' 26 | androidTestCompile 'com.android.support.test.espresso:espresso-core:2.2.2' 27 | androidTestCompile 'com.android.support.test:runner:0.5' 28 | androidTestCompile 'com.android.support:support-annotations:23.4.0' 29 | } 30 | -------------------------------------------------------------------------------- /app/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/kiva/devel/android-sdk/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 | -------------------------------------------------------------------------------- /app/src/androidTest/java/com/kiva/bootimg/ExampleInstrumentationTest.java: -------------------------------------------------------------------------------- 1 | package com.kiva.bootimg; 2 | 3 | import android.content.Context; 4 | import android.support.test.InstrumentationRegistry; 5 | import android.support.test.filters.MediumTest; 6 | import android.support.test.runner.AndroidJUnit4; 7 | 8 | import org.junit.Test; 9 | import org.junit.runner.RunWith; 10 | 11 | 12 | import static org.junit.Assert.*; 13 | 14 | /** 15 | * Instrumentation test, which will execute on an Android device. 16 | * 17 | * @see Testing documentation 18 | */ 19 | @MediumTest 20 | @RunWith(AndroidJUnit4.class) 21 | public class ExampleInstrumentationTest { 22 | @Test 23 | public void useAppContext() throws Exception { 24 | // Context of the app under test. 25 | Context appContext = InstrumentationRegistry.getTargetContext(); 26 | 27 | assertEquals("com.kiva.bootimg", appContext.getPackageName()); 28 | } 29 | } -------------------------------------------------------------------------------- /app/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 3 | 4 | 10 | 11 | 12 | 13 | 14 | -------------------------------------------------------------------------------- /app/src/main/res/mipmap-hdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/asLody/JBootImage/d2f5a3782799b9586950167ce00f2f189851161b/app/src/main/res/mipmap-hdpi/ic_launcher.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-mdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/asLody/JBootImage/d2f5a3782799b9586950167ce00f2f189851161b/app/src/main/res/mipmap-mdpi/ic_launcher.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-xhdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/asLody/JBootImage/d2f5a3782799b9586950167ce00f2f189851161b/app/src/main/res/mipmap-xhdpi/ic_launcher.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-xxhdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/asLody/JBootImage/d2f5a3782799b9586950167ce00f2f189851161b/app/src/main/res/mipmap-xxhdpi/ic_launcher.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-xxxhdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/asLody/JBootImage/d2f5a3782799b9586950167ce00f2f189851161b/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png -------------------------------------------------------------------------------- /app/src/main/res/values/colors.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | #3F51B5 4 | #303F9F 5 | #FF4081 6 | 7 | -------------------------------------------------------------------------------- /app/src/main/res/values/strings.xml: -------------------------------------------------------------------------------- 1 | 2 | Bootimg 3 | 4 | -------------------------------------------------------------------------------- /app/src/main/res/values/styles.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 10 | 11 | 12 | -------------------------------------------------------------------------------- /app/src/test/java/com/kiva/bootimg/ExampleUnitTest.java: -------------------------------------------------------------------------------- 1 | package com.kiva.bootimg; 2 | 3 | import org.junit.Test; 4 | 5 | import static org.junit.Assert.*; 6 | 7 | /** 8 | * Example local unit test, which will execute on the development machine (host). 9 | * 10 | * @see Testing documentation 11 | */ 12 | public class ExampleUnitTest { 13 | @Test 14 | public void addition_isCorrect() throws Exception { 15 | assertEquals(4, 2 + 2); 16 | } 17 | } -------------------------------------------------------------------------------- /build.gradle: -------------------------------------------------------------------------------- 1 | // Top-level build file where you can add configuration options common to all sub-projects/modules. 2 | 3 | buildscript { 4 | repositories { 5 | jcenter() 6 | } 7 | dependencies { 8 | classpath 'com.android.tools.build:gradle:2.2.0-alpha2' 9 | 10 | // NOTE: Do not place your application dependencies here; they belong 11 | // in the individual module build.gradle files 12 | } 13 | } 14 | 15 | allprojects { 16 | repositories { 17 | jcenter() 18 | } 19 | } 20 | 21 | task clean(type: Delete) { 22 | delete rootProject.buildDir 23 | } 24 | -------------------------------------------------------------------------------- /gradle.properties: -------------------------------------------------------------------------------- 1 | # Project-wide Gradle settings. 2 | 3 | # IDE (e.g. Android Studio) users: 4 | # Gradle settings configured through the IDE *will override* 5 | # any settings specified in this file. 6 | 7 | # For more details on how to configure your build environment visit 8 | # http://www.gradle.org/docs/current/userguide/build_environment.html 9 | 10 | # Specifies the JVM arguments used for the daemon process. 11 | # The setting is particularly useful for tweaking memory settings. 12 | org.gradle.jvmargs=-Xmx1536m 13 | 14 | # When configured, Gradle will run in incubating parallel mode. 15 | # This option should only be used with decoupled projects. More details, visit 16 | # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects 17 | # org.gradle.parallel=true 18 | -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.jar: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/asLody/JBootImage/d2f5a3782799b9586950167ce00f2f189851161b/gradle/wrapper/gradle-wrapper.jar -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.properties: -------------------------------------------------------------------------------- 1 | #Mon Dec 28 10:00:20 PST 2015 2 | distributionBase=GRADLE_USER_HOME 3 | distributionPath=wrapper/dists 4 | zipStoreBase=GRADLE_USER_HOME 5 | zipStorePath=wrapper/dists 6 | distributionUrl=https\://services.gradle.org/distributions/gradle-2.10-all.zip 7 | -------------------------------------------------------------------------------- /gradlew: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env bash 2 | 3 | ############################################################################## 4 | ## 5 | ## Gradle start up script for UN*X 6 | ## 7 | ############################################################################## 8 | 9 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 10 | DEFAULT_JVM_OPTS="" 11 | 12 | APP_NAME="Gradle" 13 | APP_BASE_NAME=`basename "$0"` 14 | 15 | # Use the maximum available, or set MAX_FD != -1 to use that value. 16 | MAX_FD="maximum" 17 | 18 | warn ( ) { 19 | echo "$*" 20 | } 21 | 22 | die ( ) { 23 | echo 24 | echo "$*" 25 | echo 26 | exit 1 27 | } 28 | 29 | # OS specific support (must be 'true' or 'false'). 30 | cygwin=false 31 | msys=false 32 | darwin=false 33 | case "`uname`" in 34 | CYGWIN* ) 35 | cygwin=true 36 | ;; 37 | Darwin* ) 38 | darwin=true 39 | ;; 40 | MINGW* ) 41 | msys=true 42 | ;; 43 | esac 44 | 45 | # Attempt to set APP_HOME 46 | # Resolve links: $0 may be a link 47 | PRG="$0" 48 | # Need this for relative symlinks. 49 | while [ -h "$PRG" ] ; do 50 | ls=`ls -ld "$PRG"` 51 | link=`expr "$ls" : '.*-> $.*$$'` 52 | if expr "$link" : '/.*' > /dev/null; then 53 | PRG="$link" 54 | else 55 | PRG=`dirname "$PRG"`"/$link" 56 | fi 57 | done 58 | SAVED="`pwd`" 59 | cd "`dirname \"$PRG\"`/" >/dev/null 60 | APP_HOME="`pwd -P`" 61 | cd "$SAVED" >/dev/null 62 | 63 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar 64 | 65 | # Determine the Java command to use to start the JVM. 66 | if [ -n "$JAVA_HOME" ] ; then 67 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then 68 | # IBM's JDK on AIX uses strange locations for the executables 69 | JAVACMD="$JAVA_HOME/jre/sh/java" 70 | else 71 | JAVACMD="$JAVA_HOME/bin/java" 72 | fi 73 | if [ ! -x "$JAVACMD" ] ; then 74 | die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME 75 | 76 | Please set the JAVA_HOME variable in your environment to match the 77 | location of your Java installation." 78 | fi 79 | else 80 | JAVACMD="java" 81 | which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 82 | 83 | Please set the JAVA_HOME variable in your environment to match the 84 | location of your Java installation." 85 | fi 86 | 87 | # Increase the maximum file descriptors if we can. 88 | if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then 89 | MAX_FD_LIMIT=`ulimit -H -n` 90 | if [ $? -eq 0 ] ; then 91 | if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then 92 | MAX_FD="$MAX_FD_LIMIT" 93 | fi 94 | ulimit -n $MAX_FD 95 | if [ $? -ne 0 ] ; then 96 | warn "Could not set maximum file descriptor limit: $MAX_FD" 97 | fi 98 | else 99 | warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT" 100 | fi 101 | fi 102 | 103 | # For Darwin, add options to specify how the application appears in the dock 104 | if $darwin; then 105 | GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\"" 106 | fi 107 | 108 | # For Cygwin, switch paths to Windows format before running java 109 | if $cygwin ; then 110 | APP_HOME=`cygpath --path --mixed "$APP_HOME"` 111 | CLASSPATH=`cygpath --path --mixed "$CLASSPATH"` 112 | JAVACMD=`cygpath --unix "$JAVACMD"` 113 | 114 | # We build the pattern for arguments to be converted via cygpath 115 | ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null` 116 | SEP="" 117 | for dir in $ROOTDIRSRAW ; do 118 | ROOTDIRS="$ROOTDIRS$SEP$dir" 119 | SEP="|" 120 | done 121 | OURCYGPATTERN="(^($ROOTDIRS))" 122 | # Add a user-defined pattern to the cygpath arguments 123 | if [ "$GRADLE_CYGPATTERN" != "" ] ; then 124 | OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)" 125 | fi 126 | # Now convert the arguments - kludge to limit ourselves to /bin/sh 127 | i=0 128 | for arg in "$@" ; do 129 | CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -` 130 | CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option 131 | 132 | if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition 133 | eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"` 134 | else 135 | eval `echo args$i`="\"$arg\"" 136 | fi 137 | i=$((i+1)) 138 | done 139 | case $i in 140 | (0) set -- ;; 141 | (1) set -- "$args0" ;; 142 | (2) set -- "$args0" "$args1" ;; 143 | (3) set -- "$args0" "$args1" "$args2" ;; 144 | (4) set -- "$args0" "$args1" "$args2" "$args3" ;; 145 | (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;; 146 | (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;; 147 | (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;; 148 | (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;; 149 | (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;; 150 | esac 151 | fi 152 | 153 | # Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules 154 | function splitJvmOpts() { 155 | JVM_OPTS=("$@") 156 | } 157 | eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS 158 | JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME" 159 | 160 | exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@" 161 | -------------------------------------------------------------------------------- /gradlew.bat: -------------------------------------------------------------------------------- 1 | @if "%DEBUG%" == "" @echo off 2 | @rem ########################################################################## 3 | @rem 4 | @rem Gradle startup script for Windows 5 | @rem 6 | @rem ########################################################################## 7 | 8 | @rem Set local scope for the variables with windows NT shell 9 | if "%OS%"=="Windows_NT" setlocal 10 | 11 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 12 | set DEFAULT_JVM_OPTS= 13 | 14 | set DIRNAME=%~dp0 15 | if "%DIRNAME%" == "" set DIRNAME=. 16 | set APP_BASE_NAME=%~n0 17 | set APP_HOME=%DIRNAME% 18 | 19 | @rem Find java.exe 20 | if defined JAVA_HOME goto findJavaFromJavaHome 21 | 22 | set JAVA_EXE=java.exe 23 | %JAVA_EXE% -version >NUL 2>&1 24 | if "%ERRORLEVEL%" == "0" goto init 25 | 26 | echo. 27 | echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 28 | echo. 29 | echo Please set the JAVA_HOME variable in your environment to match the 30 | echo location of your Java installation. 31 | 32 | goto fail 33 | 34 | :findJavaFromJavaHome 35 | set JAVA_HOME=%JAVA_HOME:"=% 36 | set JAVA_EXE=%JAVA_HOME%/bin/java.exe 37 | 38 | if exist "%JAVA_EXE%" goto init 39 | 40 | echo. 41 | echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 42 | echo. 43 | echo Please set the JAVA_HOME variable in your environment to match the 44 | echo location of your Java installation. 45 | 46 | goto fail 47 | 48 | :init 49 | @rem Get command-line arguments, handling Windowz variants 50 | 51 | if not "%OS%" == "Windows_NT" goto win9xME_args 52 | if "%@eval[2+2]" == "4" goto 4NT_args 53 | 54 | :win9xME_args 55 | @rem Slurp the command line arguments. 56 | set CMD_LINE_ARGS= 57 | set _SKIP=2 58 | 59 | :win9xME_args_slurp 60 | if "x%~1" == "x" goto execute 61 | 62 | set CMD_LINE_ARGS=%* 63 | goto execute 64 | 65 | :4NT_args 66 | @rem Get arguments from the 4NT Shell from JP Software 67 | set CMD_LINE_ARGS=%$ 68 | 69 | :execute 70 | @rem Setup the command line 71 | 72 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar 73 | 74 | @rem Execute Gradle 75 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS% 76 | 77 | :end 78 | @rem End local scope for the variables with windows NT shell 79 | if "%ERRORLEVEL%"=="0" goto mainEnd 80 | 81 | :fail 82 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of 83 | rem the _cmd.exe /c_ return code! 84 | if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1 85 | exit /b 1 86 | 87 | :mainEnd 88 | if "%OS%"=="Windows_NT" endlocal 89 | 90 | :omega 91 | -------------------------------------------------------------------------------- /jbootimage/.gitignore: -------------------------------------------------------------------------------- 1 | /build 2 | -------------------------------------------------------------------------------- /jbootimage/build.gradle: -------------------------------------------------------------------------------- 1 | apply plugin: 'java' 2 | 3 | dependencies { 4 | compile fileTree(dir: 'libs', include: ['*.jar']) 5 | compile group: 'org.apache.commons', name: 'commons-compress', version: '1.11' 6 | 7 | } 8 | -------------------------------------------------------------------------------- /jbootimage/src/main/java/com/kiva/BootImage.java: -------------------------------------------------------------------------------- 1 | package com.kiva; 2 | 3 | import com.kiva.ramdisk.Ramdisk; 4 | import com.kiva.ramdisk.RamdiskFactory; 5 | import com.kiva.ramdisk.RamdiskProcessor; 6 | import com.kiva.ramdisk.RamdiskType; 7 | 8 | import java.io.File; 9 | import java.io.FileInputStream; 10 | import java.io.FileOutputStream; 11 | import java.io.IOException; 12 | import java.io.ObjectInputStream; 13 | import java.io.ObjectOutputStream; 14 | import java.io.RandomAccessFile; 15 | import java.util.Arrays; 16 | 17 | import static com.kiva.BootType.MTK; 18 | 19 | /** 20 | * @author Lody Kiva 21 | * 22 | */ 23 | public class BootImage implements Constant { 24 | private static final byte MAGIC[] = {0x41, 0x4E, 0x44, 0x52, 0x4F, 0x49, 0x44, 0x21}; 25 | 26 | private BootImageInfo bootImageInfo; 27 | private ByteArray image; 28 | private Ramdisk ramdisk; 29 | private boolean isUnpack; 30 | private String source; 31 | 32 | private byte[] kernelBuf; 33 | private byte[] ramdiskBuf; 34 | private byte[] secondBuf; 35 | 36 | private BootImage(String source, boolean isUnpack) { 37 | this.isUnpack = isUnpack; 38 | this.source = source; 39 | } 40 | 41 | public static BootImage fromFile(String file) throws IOException { 42 | File bootFile = new File(file); 43 | if (!bootFile.isFile()) { 44 | throw new IOException("Invalid file: " + file); 45 | } 46 | 47 | BootImage image = new BootImage(file, true); 48 | 49 | image.image = ByteArray.wrap(IOUtils.readFully(bootFile)); 50 | image.bootImageInfo = new BootImageInfo(); 51 | 52 | image.detectBootType(); 53 | image.loadImage(); 54 | return image; 55 | } 56 | 57 | public static BootImage fromDir(String dir) throws IOException { 58 | File bootDir = new File(dir); 59 | if (!bootDir.isDirectory()) { 60 | throw new IOException("Invalid directory: " + dir); 61 | } 62 | 63 | BootImage image = new BootImage(dir, false); 64 | image.loadConfig(new File(bootDir, CONFIG_FILE_NAME)); 65 | return image; 66 | } 67 | 68 | private void loadConfig(File file) throws IOException { 69 | if (isUnpack) { 70 | return; 71 | } 72 | 73 | ObjectInputStream ois = new ObjectInputStream(new FileInputStream(file)); 74 | try { 75 | bootImageInfo = (BootImageInfo) ois.readObject(); 76 | } catch (ClassNotFoundException e) { 77 | // Will not going to happen 78 | } 79 | ois.close(); 80 | } 81 | 82 | private void detectBootType() { 83 | if (!isUnpack) { 84 | return; 85 | } 86 | 87 | // TODO 88 | bootImageInfo.bootType = MTK; 89 | } 90 | 91 | private void loadImage() throws IOException { 92 | if (!isUnpack) { 93 | return; 94 | } 95 | 96 | bootImageInfo.magic = image.readBytes(BootImageInfo.BOOT_MAGIC_SIZE); 97 | if (!checkMagic(bootImageInfo.magic)) { 98 | throw new IOException("Invalid boot.img"); 99 | } 100 | 101 | bootImageInfo.kernelSize = image.readU4(); 102 | bootImageInfo.kernelAddr = image.readU4(); 103 | bootImageInfo.ramdiskSize = image.readU4(); 104 | bootImageInfo.ramdiskAddr = image.readU4(); 105 | bootImageInfo.secondSize = image.readU4(); 106 | bootImageInfo.secondAddr = image.readU4(); 107 | bootImageInfo.tagsAddr = image.readU4(); 108 | bootImageInfo.pageSize = image.readU4(); 109 | bootImageInfo.dtSize = image.readU4(); 110 | bootImageInfo.unused = image.readBytes(BootImageInfo.UNUSED_SIZE); 111 | bootImageInfo.name = image.readBytes(BootImageInfo.BOOT_NAME_SIZE); 112 | bootImageInfo.cmdline = image.readBytes(BootImageInfo.BOOT_ARGS_SIZE); 113 | bootImageInfo.id = null;// Needn't 114 | 115 | // Peek kernel 116 | image.seek(bootImageInfo.pageSize); 117 | kernelBuf = image.readBytes(bootImageInfo.kernelSize); 118 | 119 | // Peek Ramdisk 120 | int ramdiskPos = (((bootImageInfo.kernelSize + bootImageInfo.pageSize) 121 | / (bootImageInfo.pageSize * 2)) + 1) 122 | * (bootImageInfo.pageSize * 2); 123 | image.seek(ramdiskPos); 124 | ramdiskBuf = image.readBytes(bootImageInfo.ramdiskSize); 125 | 126 | if (bootImageInfo.secondSize > 0) { 127 | // Peek Second stage 128 | int secondPos = (((ramdiskPos + bootImageInfo.ramdiskSize) 129 | / (bootImageInfo.pageSize * 2)) + 1) 130 | * (bootImageInfo.pageSize * 2); 131 | image.seek(secondPos); 132 | secondBuf = image.readBytes(bootImageInfo.secondSize); 133 | } 134 | 135 | ramdisk = RamdiskFactory.makeRamdisk(bootImageInfo.bootType, getRamdiskBuffer()); 136 | if (ramdisk == null) { 137 | throw new IOException("Failed to create ramdisk instance"); 138 | } 139 | 140 | bootImageInfo.ramdiskType = ramdisk.getRamdiskType(); 141 | } 142 | 143 | private static boolean checkMagic(byte[] magic) { 144 | return Arrays.equals(magic, MAGIC); 145 | } 146 | 147 | public void unpack(String outputDir) throws IOException { 148 | if (!isUnpack) { 149 | return; 150 | } 151 | 152 | File outputDirFile = new File(outputDir); 153 | 154 | FileOutputStream kernelOutput = null; 155 | FileOutputStream secondOutput = null; 156 | ObjectOutputStream configOutput = null; 157 | try { 158 | if (!outputDirFile.exists()) { 159 | if (!outputDirFile.mkdirs()) { 160 | throw new IOException("Failed to create output directory"); 161 | } 162 | } 163 | 164 | kernelOutput = new FileOutputStream( 165 | new File(outputDirFile, KERNEL_FILE_NAME)); 166 | kernelOutput.write(getKernelBuffer()); 167 | 168 | if (bootImageInfo.secondSize > 0) { 169 | secondOutput = new FileOutputStream( 170 | new File(outputDirFile, SECOND_FILE_NAME)); 171 | secondOutput.write(getSecondBuffer()); 172 | } 173 | 174 | ramdisk.writeExtraFile(outputDir); 175 | ramdisk.getRamdiskProcessor() 176 | .decompress(ramdisk.getRamdiskBuffer(), 177 | (outputDirFile.getAbsolutePath() 178 | + File.separator + RAMDISK_DIR_NAME)); 179 | 180 | configOutput = new ObjectOutputStream(new FileOutputStream( 181 | new File(outputDirFile, CONFIG_FILE_NAME))); 182 | configOutput.writeObject(bootImageInfo); 183 | } catch (Exception e) { 184 | IOUtils.delete(outputDirFile); 185 | throw new IOException(e); 186 | } finally { 187 | IOUtils.safeClose(kernelOutput); 188 | IOUtils.safeClose(secondOutput); 189 | IOUtils.safeClose(configOutput); 190 | } 191 | } 192 | 193 | public void repack(String outputFile) throws IOException { 194 | if (isUnpack) { 195 | return; 196 | } 197 | 198 | File kernelFile = new File(source, KERNEL_FILE_NAME); 199 | if (!kernelFile.exists()) { 200 | throw new IOException("kernel does not exist"); 201 | } 202 | 203 | File packedRamdiskFile = new File(source, RAMDISK_PACKED_FILE_NAME); 204 | File ramdiskDir = new File(source, RAMDISK_DIR_NAME); 205 | File secondFile = new File(source, SECOND_FILE_NAME); 206 | 207 | if (!ramdiskDir.exists() && !packedRamdiskFile.exists()) { 208 | throw new IOException("Neither ramdisk dir nor packed ramdisk exists"); 209 | } 210 | 211 | if (getSecondSize() > 0 && !secondFile.exists()) { 212 | throw new IOException("Second stage file does not exist"); 213 | } 214 | 215 | if (ramdiskDir.exists()) { 216 | RamdiskProcessor processor = RamdiskFactory.makeRamdiskProcessor(getRamdiskType()); 217 | if (processor == null) { 218 | throw new IOException("Failed to create ramdisk processor"); 219 | } 220 | 221 | File headerFile = new File(source, HEADER_FILE_NAME); 222 | File footerFile = new File(source, FOOTER_FILE_NAME); 223 | processor.compress(ramdiskDir.getAbsolutePath(), 224 | packedRamdiskFile.getAbsolutePath(), 225 | headerFile, footerFile); 226 | } 227 | 228 | int kernelSize = (int) kernelFile.length(); 229 | int ramdiskSize = (int) packedRamdiskFile.length(); 230 | 231 | RandomAccessFile raf = new RandomAccessFile(outputFile, "rw"); 232 | raf.seek(0); 233 | raf.write(MAGIC); 234 | raf.writeInt(kernelSize); 235 | raf.writeInt(getKernelAddr()); 236 | raf.writeInt(ramdiskSize); 237 | raf.writeInt(getRamdiskAddr()); 238 | raf.writeInt(getSecondSize()); 239 | raf.writeInt(getSecondAddr()); 240 | raf.writeInt(getTagsSize()); 241 | raf.writeInt(getPageSize()); 242 | raf.writeInt(getDtSize()); 243 | raf.write(new byte[BootImageInfo.UNUSED_SIZE]); 244 | raf.write(getName()); 245 | raf.write(getCmdline()); 246 | // id 247 | 248 | // kernel 249 | raf.seek(getPageSize()); 250 | raf.write(IOUtils.readFully(kernelFile)); 251 | 252 | // ramdisk 253 | int ramdiskPos = (((kernelSize + bootImageInfo.pageSize) 254 | / (bootImageInfo.pageSize * 2)) + 1) 255 | * (bootImageInfo.pageSize * 2); 256 | raf.seek(ramdiskPos); 257 | raf.write(IOUtils.readFully(packedRamdiskFile)); 258 | 259 | // second 260 | if (getSecondSize() > 0) { 261 | int secondPos = (((ramdiskSize / (bootImageInfo.pageSize * 2)) + 1) 262 | * (bootImageInfo.pageSize * 2)) + ramdiskPos; 263 | raf.seek(secondPos); 264 | raf.write(IOUtils.readFully(secondFile)); 265 | } 266 | 267 | raf.close(); 268 | } 269 | 270 | 271 | public byte[] getMagic() { 272 | return bootImageInfo.magic; 273 | } 274 | 275 | public int getKernelSize() { 276 | return bootImageInfo.kernelSize; 277 | } 278 | 279 | public int getKernelAddr() { 280 | return bootImageInfo.kernelAddr; 281 | } 282 | 283 | public int getRamdiskSize() { 284 | return bootImageInfo.ramdiskSize; 285 | } 286 | 287 | public int getRamdiskAddr() { 288 | return bootImageInfo.ramdiskAddr; 289 | } 290 | 291 | public int getSecondSize() { 292 | return bootImageInfo.secondSize; 293 | } 294 | 295 | public int getSecondAddr() { 296 | return bootImageInfo.secondAddr; 297 | } 298 | 299 | public int getTagsSize() { 300 | return bootImageInfo.tagsAddr; 301 | } 302 | 303 | public int getPageSize() { 304 | return bootImageInfo.pageSize; 305 | } 306 | 307 | public int getDtSize() { 308 | return bootImageInfo.dtSize; 309 | } 310 | 311 | public byte[] getUnused() { 312 | return bootImageInfo.unused; 313 | } 314 | 315 | public byte[] getName() { 316 | return bootImageInfo.name; 317 | } 318 | 319 | public byte[] getCmdline() { 320 | return bootImageInfo.cmdline; 321 | } 322 | 323 | public byte[] getKernelBuffer() { 324 | return kernelBuf; 325 | } 326 | 327 | public byte[] getRamdiskBuffer() { 328 | return ramdiskBuf; 329 | } 330 | 331 | public byte[] getSecondBuffer() { 332 | return secondBuf; 333 | } 334 | 335 | public Ramdisk getRamdisk() { 336 | return ramdisk; 337 | } 338 | 339 | public RamdiskType getRamdiskType() { 340 | return bootImageInfo.ramdiskType; 341 | } 342 | 343 | public BootType getBootType() { 344 | return bootImageInfo.bootType; 345 | } 346 | } 347 | -------------------------------------------------------------------------------- /jbootimage/src/main/java/com/kiva/BootImageInfo.java: -------------------------------------------------------------------------------- 1 | package com.kiva; 2 | 3 | import com.kiva.ramdisk.RamdiskType; 4 | 5 | import java.io.Serializable; 6 | 7 | /** 8 | * @author kiva 9 | */ 10 | 11 | public class BootImageInfo implements Serializable { 12 | public static final int BOOT_MAGIC_SIZE = 8; 13 | public static final int BOOT_NAME_SIZE = 16; 14 | public static final int BOOT_ARGS_SIZE = 512; 15 | public static final int UNUSED_SIZE = 4; 16 | 17 | public transient byte[] magic; 18 | public int kernelSize; /* size in bytes */ 19 | public int kernelAddr; /* physical load addr */ 20 | 21 | public int ramdiskSize; /* size in bytes */ 22 | public int ramdiskAddr; /* physical load addr */ 23 | 24 | public int secondSize; /* size in bytes */ 25 | public int secondAddr; /* physical load addr */ 26 | 27 | public int tagsAddr; /* physical addr for kernel tags */ 28 | public int pageSize; /* flash page size we assume */ 29 | public int dtSize; /* device tree size in bytes */ 30 | public transient byte[] unused; /* future expansion: should be 0 */ 31 | public byte[] name; /* asciiz product name */ 32 | 33 | public byte[] cmdline; 34 | 35 | public transient int[] id; /* timestamp / checksum / sha1 / etc */ 36 | 37 | public BootType bootType; 38 | public RamdiskType ramdiskType; 39 | } 40 | -------------------------------------------------------------------------------- /jbootimage/src/main/java/com/kiva/BootType.java: -------------------------------------------------------------------------------- 1 | package com.kiva; 2 | 3 | /** 4 | * @author kiva 5 | */ 6 | 7 | public enum BootType { 8 | MTK, 9 | QUALCOMM, 10 | // More in feature 11 | } 12 | -------------------------------------------------------------------------------- /jbootimage/src/main/java/com/kiva/ByteArray.java: -------------------------------------------------------------------------------- 1 | package com.kiva; 2 | 3 | import java.nio.ByteBuffer; 4 | import java.nio.ByteOrder; 5 | 6 | /** 7 | * @author kiva 8 | */ 9 | 10 | public class ByteArray { 11 | private int length; 12 | private byte[] bytes; 13 | private int pos; 14 | 15 | public ByteArray(byte[] bytes) { 16 | this.length = bytes.length; 17 | this.bytes = bytes; 18 | seek(0); 19 | } 20 | 21 | public byte[] getBytes() { 22 | return bytes; 23 | } 24 | 25 | public byte[] readBytes(int count) { 26 | byte[] buf = new byte[count]; 27 | int limit = count; 28 | if (count + pos >= length) { 29 | limit = length - pos - 1; 30 | } 31 | System.arraycopy(bytes, pos, buf, 0, limit); 32 | pos += count; 33 | return buf; 34 | } 35 | 36 | public int readU4() { 37 | return ByteBuffer.wrap(readBytes(4)) 38 | .order(ByteOrder.LITTLE_ENDIAN) 39 | .getInt(); 40 | } 41 | 42 | public void seek(int newPos) { 43 | this.pos = newPos; 44 | } 45 | 46 | public static ByteArray wrap(byte[] bytes) { 47 | return new ByteArray(bytes); 48 | } 49 | } 50 | -------------------------------------------------------------------------------- /jbootimage/src/main/java/com/kiva/Constant.java: -------------------------------------------------------------------------------- 1 | package com.kiva; 2 | 3 | /** 4 | * @author kiva 5 | */ 6 | public interface Constant { 7 | String CONFIG_FILE_NAME = "config.bin"; 8 | String SECOND_FILE_NAME = "second"; 9 | String KERNEL_FILE_NAME = "kernel"; 10 | String RAMDISK_PACKED_FILE_NAME = "ramdisk.packed"; 11 | String HEADER_FILE_NAME = "ramdisk-header"; 12 | String FOOTER_FILE_NAME = "ramdisk-footer"; 13 | String RAMDISK_DIR_NAME = "ramdisk"; 14 | } 15 | -------------------------------------------------------------------------------- /jbootimage/src/main/java/com/kiva/IOUtils.java: -------------------------------------------------------------------------------- 1 | package com.kiva; 2 | 3 | import java.io.ByteArrayOutputStream; 4 | import java.io.Closeable; 5 | import java.io.File; 6 | import java.io.FileInputStream; 7 | import java.io.FileOutputStream; 8 | import java.io.IOException; 9 | import java.io.InputStream; 10 | 11 | /** 12 | * @author kiva 13 | */ 14 | 15 | public class IOUtils { 16 | 17 | public static void safeClose(Closeable is) { 18 | if (is != null) { 19 | try { 20 | is.close(); 21 | } catch (Throwable e) { 22 | //Ignore 23 | } 24 | } 25 | } 26 | 27 | public static void write(File file, byte[] bytes) throws IOException { 28 | FileOutputStream os = null; 29 | try { 30 | os = new FileOutputStream(file); 31 | os.write(bytes); 32 | } catch (Exception e) { 33 | throw new IOException(e); 34 | } finally { 35 | if (os != null) { 36 | os.close(); 37 | } 38 | } 39 | } 40 | 41 | public static byte[] read(InputStream is, int count) throws IOException { 42 | byte[] buf = new byte[count]; 43 | is.read(buf); 44 | return buf; 45 | } 46 | 47 | public static byte[] readFully(InputStream is) throws IOException { 48 | ByteArrayOutputStream os = new ByteArrayOutputStream(); 49 | byte[] buffer = new byte[128]; 50 | int i; 51 | for (;;) { 52 | if ((i = is.read(buffer)) < 0) { 53 | break; 54 | } 55 | os.write(buffer, 0, i); 56 | } 57 | return os.toByteArray(); 58 | } 59 | 60 | public static boolean delete(File dir) { 61 | if (!dir.exists()) { 62 | return false; 63 | } 64 | 65 | if (dir.isDirectory()) { 66 | String[] children = dir.list(); 67 | //递归删除目录中的子目录下 68 | for (String child : children) { 69 | boolean success = delete(new File(dir, child)); 70 | if (!success) { 71 | return false; 72 | } 73 | } 74 | } 75 | // 目录此时为空，可以删除 76 | return dir.delete(); 77 | } 78 | 79 | public static byte[] readFully(File file) throws IOException { 80 | FileInputStream is = new FileInputStream(file); 81 | byte[] bytes = readFully(is); 82 | is.close(); 83 | return bytes; 84 | } 85 | } 86 | -------------------------------------------------------------------------------- /jbootimage/src/main/java/com/kiva/MTKContacts.java: -------------------------------------------------------------------------------- 1 | package com.kiva; 2 | 3 | /** 4 | * @author kiva 5 | */ 6 | 7 | public class MTKContacts { 8 | public static final byte[] MTK_IDENTITY_ONE = {-120, 22, -120, 88}; 9 | } 10 | -------------------------------------------------------------------------------- /jbootimage/src/main/java/com/kiva/Main.java: -------------------------------------------------------------------------------- 1 | package com.kiva; 2 | 3 | import java.io.IOException; 4 | 5 | public class Main { 6 | 7 | public static void main(String... args) throws IOException { 8 | // for (int i = 0; i < 2; ++i) { 9 | // BootImage img = new BootImage("/Users/kiva/ss/mtk" + i + ".img"); 10 | // img.unpack("/Users/kiva/ss/output" + i); 11 | // } 12 | 13 | // BootImage img = BootImage.fromFile("/Users/kiva/ss/mtk1.img"); 14 | // img.unpack("/Users/kiva/ss/output"); 15 | // 16 | BootImage repackImg = BootImage.fromDir("/Users/kiva/ss/output"); 17 | repackImg.repack("/Users/kiva/ss/output/jboot.img"); 18 | 19 | // BootImage reunpackImg = BootImage.fromFile("/Users/kiva/ss/output/jboot.img"); 20 | // reunpackImg.unpack("/Users/kiva/ss/output-reunpack"); 21 | } 22 | } 23 | -------------------------------------------------------------------------------- /jbootimage/src/main/java/com/kiva/ramdisk/MTKRamdisk.java: -------------------------------------------------------------------------------- 1 | package com.kiva.ramdisk; 2 | 3 | import com.kiva.BootImage; 4 | import com.kiva.Constant; 5 | import com.kiva.IOUtils; 6 | 7 | import org.apache.commons.compress.archivers.cpio.CpioArchiveEntry; 8 | import org.apache.commons.compress.archivers.cpio.CpioArchiveInputStream; 9 | 10 | import java.io.ByteArrayInputStream; 11 | import java.io.File; 12 | import java.io.FileOutputStream; 13 | import java.io.IOException; 14 | import java.util.zip.GZIPInputStream; 15 | 16 | /** 17 | * @author kiva 18 | */ 19 | 20 | public class MTKRamdisk extends Ramdisk implements Constant { 21 | private byte[] header; 22 | private byte[] ramdisk; 23 | 24 | public MTKRamdisk(byte[] bytes) { 25 | ramdisk = new byte[bytes.length - 512]; 26 | header = new byte[512]; 27 | System.arraycopy(bytes, 0, header, 0, 512); 28 | System.arraycopy(bytes, 512, ramdisk, 0, ramdisk.length); 29 | } 30 | 31 | @Override 32 | public void writeExtraFile(String baseDir) throws IOException { 33 | File headerFile = new File(baseDir, HEADER_FILE_NAME); 34 | IOUtils.write(headerFile, header); 35 | } 36 | 37 | @Override 38 | public byte[] getRamdiskBuffer() { 39 | return ramdisk; 40 | } 41 | } 42 | -------------------------------------------------------------------------------- /jbootimage/src/main/java/com/kiva/ramdisk/QualcommRamdisk.java: -------------------------------------------------------------------------------- 1 | package com.kiva.ramdisk; 2 | 3 | /** 4 | * @author kiva 5 | */ 6 | public class QualcommRamdisk extends Ramdisk { 7 | private byte[] ramdisk; 8 | 9 | public QualcommRamdisk(byte[] bytes) { 10 | this.ramdisk = bytes; 11 | } 12 | 13 | @Override 14 | public byte[] getRamdiskBuffer() { 15 | return this.ramdisk; 16 | } 17 | } 18 | -------------------------------------------------------------------------------- /jbootimage/src/main/java/com/kiva/ramdisk/Ramdisk.java: -------------------------------------------------------------------------------- 1 | package com.kiva.ramdisk; 2 | 3 | import java.io.IOException; 4 | 5 | /** 6 | * @author kiva 7 | */ 8 | 9 | public abstract class Ramdisk { 10 | private RamdiskType ramdiskType; 11 | private RamdiskProcessor ramdiskProcessor; 12 | 13 | public RamdiskProcessor getRamdiskProcessor() { 14 | return ramdiskProcessor; 15 | } 16 | 17 | void setRamdiskProcessor(RamdiskProcessor processor) { 18 | this.ramdiskProcessor = processor; 19 | } 20 | 21 | public void setRamdiskType(RamdiskType ramdiskType) { 22 | this.ramdiskType = ramdiskType; 23 | } 24 | 25 | public RamdiskType getRamdiskType() { 26 | return ramdiskType; 27 | } 28 | 29 | public void writeExtraFile(String baseDir) throws IOException {} 30 | 31 | public abstract byte[] getRamdiskBuffer(); 32 | } 33 | -------------------------------------------------------------------------------- /jbootimage/src/main/java/com/kiva/ramdisk/RamdiskFactory.java: -------------------------------------------------------------------------------- 1 | package com.kiva.ramdisk; 2 | 3 | 4 | import com.kiva.BootType; 5 | import com.kiva.ramdisk.processor.GZipRamdiskProcessor; 6 | 7 | /** 8 | * @author kiva 9 | */ 10 | 11 | public class RamdiskFactory { 12 | public static Ramdisk makeRamdisk(BootType bootType, byte[] buffer) 13 | throws UnsupportedOperationException { 14 | Ramdisk ramdisk = null; 15 | switch (bootType) { 16 | case MTK: 17 | ramdisk = new MTKRamdisk(buffer); 18 | break; 19 | case QUALCOMM: 20 | ramdisk = new QualcommRamdisk(buffer); 21 | break; 22 | default: 23 | throw new UnsupportedOperationException("Unsupported boot type: " + bootType); 24 | } 25 | 26 | RamdiskType ramdiskType = RamdiskType.detect(bootType, ramdisk.getRamdiskBuffer()); 27 | ramdisk.setRamdiskProcessor(makeRamdiskProcessor(ramdiskType)); 28 | ramdisk.setRamdiskType(ramdiskType); 29 | return ramdisk; 30 | } 31 | 32 | public static RamdiskProcessor makeRamdiskProcessor(RamdiskType ramdiskType) 33 | throws UnsupportedOperationException { 34 | if (ramdiskType != null) { 35 | switch (ramdiskType) { 36 | case GZIP: 37 | return new GZipRamdiskProcessor(); 38 | // TODO 39 | } 40 | } 41 | 42 | throw new UnsupportedOperationException("Unsupported ramdisk format: " + ramdiskType); 43 | } 44 | } 45 | -------------------------------------------------------------------------------- /jbootimage/src/main/java/com/kiva/ramdisk/RamdiskProcessor.java: -------------------------------------------------------------------------------- 1 | package com.kiva.ramdisk; 2 | 3 | import java.io.File; 4 | import java.io.IOException; 5 | 6 | /** 7 | * @author kiva 8 | */ 9 | 10 | public abstract class RamdiskProcessor { 11 | public abstract void decompress(byte[] buffer, String outputDir) 12 | throws IOException; 13 | 14 | public abstract void compress(String fromDir, String outputName, File headerFile, File footerFile) 15 | throws IOException; 16 | } 17 | -------------------------------------------------------------------------------- /jbootimage/src/main/java/com/kiva/ramdisk/RamdiskType.java: -------------------------------------------------------------------------------- 1 | package com.kiva.ramdisk; 2 | 3 | import com.kiva.BootType; 4 | 5 | import org.apache.commons.compress.compressors.xz.XZCompressorInputStream; 6 | 7 | import java.io.ByteArrayInputStream; 8 | import java.io.EOFException; 9 | import java.io.IOException; 10 | import java.io.InputStream; 11 | 12 | /** 13 | * @author kiva 14 | */ 15 | public enum RamdiskType { 16 | GZIP(new GZipMimeMatcher()), 17 | LZMA(new LzmaMimeMatcher()), 18 | LZOP(new LzopMimeMatcher()), 19 | LZ4(new Lz4MimeMatcher()), 20 | XZ(new XzMimeMatcher()); 21 | 22 | public static RamdiskType detect(BootType bootType, byte[] bytes) { 23 | for (RamdiskType type : RamdiskType.values()) { 24 | if (type.matcher.isMatch(bootType, bytes)) { 25 | return type; 26 | } 27 | } 28 | return null; 29 | } 30 | 31 | public final MimeMatcher matcher; 32 | 33 | RamdiskType(MimeMatcher matcher) { 34 | this.matcher = matcher; 35 | } 36 | 37 | public interface MimeMatcher { 38 | boolean isMatch(BootType bootType, byte[] bytes); 39 | } 40 | 41 | private static class GZipMimeMatcher implements MimeMatcher { 42 | 43 | private final static int GZIP_MAGIC = 0x8b1f; 44 | 45 | @Override 46 | public boolean isMatch(BootType bootType, byte[] bytes) { 47 | try { 48 | return readUShort(new ByteArrayInputStream(bytes)) == GZIP_MAGIC; 49 | } catch (IOException e) { 50 | // Will not going to happen. 51 | } 52 | // But we have to process it. 53 | return false; 54 | } 55 | 56 | private int readUShort(InputStream in) throws IOException { 57 | int b = readUByte(in); 58 | return (readUByte(in) << 8) | b; 59 | } 60 | 61 | private int readUByte(InputStream in) throws IOException { 62 | int b = in.read(); 63 | if (b == -1) { 64 | throw new EOFException(); 65 | } 66 | if (b < -1 || b > 255) { 67 | // Report on this.in, not argument in; see read{Header, Trailer}. 68 | throw new IOException("read() returned value out of range -1..255: " + b); 69 | } 70 | return b; 71 | } 72 | } 73 | 74 | private static class LzmaMimeMatcher implements MimeMatcher { 75 | @Override 76 | public boolean isMatch(BootType bootType, byte[] bytes) { 77 | if (bytes == null || bytes.length < 3) { 78 | return false; 79 | } 80 | 81 | if (bytes[0] != 0x5d) { 82 | return false; 83 | } 84 | 85 | if (bytes[1] != 0) { 86 | return false; 87 | } 88 | 89 | if (bytes[2] != 0) { 90 | return false; 91 | } 92 | return true; 93 | } 94 | } 95 | 96 | private static class LzopMimeMatcher implements MimeMatcher { 97 | @Override 98 | public boolean isMatch(BootType bootType, byte[] bytes) { 99 | return false; 100 | } 101 | } 102 | 103 | private static class Lz4MimeMatcher implements MimeMatcher { 104 | @Override 105 | public boolean isMatch(BootType bootType, byte[] bytes) { 106 | return false; 107 | } 108 | } 109 | 110 | private static class XzMimeMatcher implements MimeMatcher { 111 | @Override 112 | public boolean isMatch(BootType bootType, byte[] bytes) { 113 | // return XZCompressorInputStream.matches(bytes, bytes.length); 114 | return false; 115 | } 116 | } 117 | } 118 | -------------------------------------------------------------------------------- /jbootimage/src/main/java/com/kiva/ramdisk/processor/GZipRamdiskProcessor.java: -------------------------------------------------------------------------------- 1 | package com.kiva.ramdisk.processor; 2 | 3 | import com.kiva.Constant; 4 | import com.kiva.IOUtils; 5 | import com.kiva.ramdisk.RamdiskProcessor; 6 | 7 | import org.apache.commons.compress.archivers.ArchiveEntry; 8 | import org.apache.commons.compress.archivers.cpio.CpioArchiveEntry; 9 | import org.apache.commons.compress.archivers.cpio.CpioArchiveInputStream; 10 | import org.apache.commons.compress.archivers.cpio.CpioArchiveOutputStream; 11 | 12 | import java.io.ByteArrayInputStream; 13 | import java.io.ByteArrayOutputStream; 14 | import java.io.File; 15 | import java.io.FileOutputStream; 16 | import java.io.IOException; 17 | import java.util.zip.GZIPInputStream; 18 | import java.util.zip.GZIPOutputStream; 19 | 20 | /** 21 | * @author kiva 22 | */ 23 | 24 | public class GZipRamdiskProcessor extends RamdiskProcessor { 25 | private byte[] decompressGzip(byte[] ramdisk) { 26 | GZIPInputStream is = null; 27 | 28 | try { 29 | is = new GZIPInputStream(new ByteArrayInputStream(ramdisk)); 30 | return IOUtils.readFully(is); 31 | 32 | } catch (Exception e) { 33 | e.printStackTrace(); 34 | 35 | } finally { 36 | IOUtils.safeClose(is); 37 | } 38 | 39 | return null; 40 | } 41 | 42 | @Override 43 | public void decompress(byte[] buffer, String outputDir) throws IOException { 44 | CpioArchiveInputStream is = null; 45 | File outputDirFile = new File(outputDir); 46 | 47 | try { 48 | if (!outputDirFile.exists()) { 49 | if (!outputDirFile.mkdirs()) { 50 | throw new IOException("Failed to create output directory"); 51 | } 52 | } 53 | 54 | byte[] cpioBuffer = decompressGzip(buffer); 55 | if (cpioBuffer == null) { 56 | throw new IOException("Failed to decompress gzip"); 57 | } 58 | 59 | is = new CpioArchiveInputStream(new ByteArrayInputStream(cpioBuffer)); 60 | CpioArchiveEntry entry; 61 | while ((entry = is.getNextCPIOEntry()) != null) { 62 | File file = new File(outputDir, entry.getName()); 63 | if (entry.isDirectory()) { 64 | if (!file.exists() && !file.mkdirs()) { 65 | throw new IOException("Failed to create directory"); 66 | } 67 | } else { 68 | file.createNewFile(); 69 | IOUtils.write(file, IOUtils.read(is, (int) entry.getSize())); 70 | } 71 | } 72 | 73 | } catch (Exception e) { 74 | IOUtils.delete(outputDirFile); 75 | throw new IOException(e); 76 | } finally { 77 | IOUtils.safeClose(is); 78 | } 79 | } 80 | 81 | @Override 82 | public void compress(String fromDir, String outputName, File headerFile, File footerFile) 83 | throws IOException { 84 | File fromDirFile = new File(fromDir); 85 | if (!fromDirFile.exists()) { 86 | throw new IOException("fromDir does not exist."); 87 | } 88 | 89 | ByteArrayOutputStream byteOut = new ByteArrayOutputStream(); 90 | CpioArchiveOutputStream cpioOut = new CpioArchiveOutputStream(byteOut); 91 | addAllFilesToCpio(cpioOut, fromDirFile); 92 | cpioOut.close(); 93 | 94 | byte[] cpioBuffer = byteOut.toByteArray(); 95 | byteOut = new ByteArrayOutputStream(); 96 | GZIPOutputStream gzipOut = new GZIPOutputStream(byteOut); 97 | gzipOut.write(cpioBuffer); 98 | gzipOut.close(); 99 | 100 | FileOutputStream os = new FileOutputStream(outputName); 101 | addFileIfFound(os, headerFile); 102 | os.write(byteOut.toByteArray()); 103 | addFileIfFound(os, footerFile); 104 | os.close(); 105 | byteOut.close(); 106 | } 107 | 108 | private void addFileIfFound(FileOutputStream os, File file) throws IOException { 109 | if (file.exists()) { 110 | os.write(IOUtils.readFully(file)); 111 | } 112 | } 113 | 114 | private void addAllFilesToCpio(CpioArchiveOutputStream cpioOut, File fromDirFile) throws IOException { 115 | for (String path : fromDirFile.list()) { 116 | File file = new File(fromDirFile, path); 117 | 118 | String cpioName = file.getAbsolutePath().substring(fromDirFile.getAbsolutePath().length()); 119 | ArchiveEntry cpio = cpioOut.createArchiveEntry(file, cpioName); 120 | cpioOut.putArchiveEntry(cpio); 121 | 122 | if (file.isDirectory()) { 123 | cpioOut.closeArchiveEntry(); 124 | addAllFilesToCpio(cpioOut, file); 125 | } else { 126 | byte[] content = IOUtils.readFully(file); 127 | cpioOut.write(content); 128 | cpioOut.closeArchiveEntry(); 129 | } 130 | } 131 | } 132 | } 133 | -------------------------------------------------------------------------------- /settings.gradle: -------------------------------------------------------------------------------- 1 | include ':app', ':jbootimage' 2 | --------------------------------------------------------------------------------