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Android中部署自己的su
本人博客原文
首先把你的自己的su的放到Android应用程序工程的assets目录,为了和系统的su区分,我自己的su文件叫做sur。
另外我这里没有考虑x86架构的cpu的手机。
废话不多说,直接上代码吧!
Util.java文件
package cdut.robin.root.utils;import java.io.DataOutputStream;import java.io.File;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStream;import ledroid.nac.NacShellCommand;import android.content.Context;import android.util.Log;public class Util {private static String getDeployMySuShellScript(String localSuPath) {StringBuffer strBuffer = new StringBuffer();strBuffer.append("mount -o remount,rw " + MountPoint.getDeviceName("/system") + " /system");strBuffer.append("\n");strBuffer.append("mount -o remount,rw /system /system");strBuffer.append("\n");strBuffer.append("cat ").append(localSuPath).append(">" + kSysSuPath);strBuffer.append("\n");strBuffer.append("chown 0:0 " + kSysSuPath);strBuffer.append("\n");strBuffer.append("chmod 6777 " + kSysSuPath);strBuffer.append("\n");strBuffer.append("mount -o remount,ro " + MountPoint.getDeviceName("/system") + " /system");strBuffer.append("\n");strBuffer.append("mount -o remount,ro /system /system");strBuffer.append("\n");return strBuffer.toString();}final static String kSysSuPath = "/system/xbin/sur";private static boolean isMySuExists() {return new File(kSysSuPath).exists();}private static boolean writeMySu(Context context) {Process processShell = null;DataOutputStream osShell = null;String mySuTempPath = context.getFilesDir().getPath() + "/sur";File file = new File(mySuTempPath);if (file.exists()) {file.delete();}InputStream open = null;FileOutputStream out = null;try {open = context.getResources().getAssets().open("sur");out = context.openFileOutput("sur", Context.MODE_WORLD_WRITEABLE);byte buffer[] = new byte[4 * 1024];int len = 0;while ((len = open.read(buffer)) != -1) {out.write(buffer, 0, len);}out.flush();} catch (IOException e) {LogHelper.e("TAG", "errMessage" + e.getMessage());} finally {if (out != null) {try {out.close();if (open != null) {open.close();}} catch (Exception e) {LogHelper.e("TAG", "errMessage" + e.getMessage());}}}Runtime runTime = Runtime.getRuntime();try {processShell = runTime.exec("su");osShell = new DataOutputStream(processShell.getOutputStream());String str = getDeployMySuShellScript(mySuTempPath);osShell.writeBytes(str);osShell.writeBytes("exit\n");osShell.flush();processShell.waitFor();} catch (IOException e) {e.printStackTrace();} catch (InterruptedException e) {e.printStackTrace();} finally {if (processShell != null) {try {processShell.destroy();} catch (Exception e) {// e.printStackTrace();}processShell = null;}if (osShell != null) {try {osShell.close();osShell = null;} catch (IOException e1) {// e1.printStackTrace();}}}return new File(kSysSuPath).exists();}public static boolean doSthBySu(Context context) {if (!isMySuExists()) {boolean res = writeMySu(context);if (res) {Log.i("robin", "deploy My Su success!");}else{Log.i("robin", "deploy My Su fail!");}} else{Log.i("robin", "My su exsit!");}Process processShell = null;DataOutputStream osShell = null;//do something here by sutry {Runtime runTime = Runtime.getRuntime();processShell = runTime.exec("sur");osShell = new DataOutputStream(processShell.getOutputStream());String str = getBussinessShellScript();osShell.writeBytes(str);osShell.writeBytes("exit\n");osShell.flush();} catch (Exception e) {e.printStackTrace();return false;} finally {if (processShell != null) {try {processShell.destroy();} catch (Exception e) {e.printStackTrace();}processShell = null;}if (osShell != null) {try {osShell.close();osShell = null;} catch (IOException e1) {// e1.printStackTrace();}}}return true;}public static String getBussinessShellScript() {return "echo hello";}}
MountPoint.java文件
package cdut.robin.root.utils;import java.io.BufferedReader;import java.io.File;import java.io.FileInputStream;import java.io.IOException;import java.io.InputStreamReader;import java.util.ArrayList;import java.util.HashMap;import java.util.List;public final class MountPoint {private static HashMap<String, String> MOUNT_POINT_CACH = new HashMap(10);private static HashMap<String, List<String>> DEVICE_CACH = new HashMap(10);public static boolean isMountPoint(String mountPoint) {return getDeviceName(mountPoint) != null;}public static String getDeviceName(String mountPoint) {if (mountPoint == null) {return null;}String deviceName = null;if (MOUNT_POINT_CACH.containsKey(mountPoint)) {deviceName = (String) MOUNT_POINT_CACH.get(mountPoint);}return deviceName;}public static boolean hasMultiMountPoint(String deviceName) {List list = getMountPoints(deviceName);return (list != null) && (list.size() > 1);}public static List<String> getMountPoints(String deviceName) {return (List) DEVICE_CACH.get(deviceName);}static {BufferedReader mountPointReader = null;try {mountPointReader = new BufferedReader(new InputStreamReader(new FileInputStream(new File("/proc/mounts"))));String buffer = null;while ((buffer = mountPointReader.readLine()) != null) {MOUNT_POINT_CACH.put(buffer.split(" ")[1], buffer.split(" ")[0]);List list = (List) DEVICE_CACH.get(buffer.split(" ")[0]);if (list == null) {list = new ArrayList(1);}list.add(buffer.split(" ")[1]);DEVICE_CACH.put(buffer.split(" ")[0], list);}} catch (IOException e) {} finally {try {if (mountPointReader != null)mountPointReader.close();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}}}}
结束!
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