/**
* This will return an ArrayList of the class Mount. The class mount contains the following
* property's: device mountPoint type flags
*
* <p>These will provide you with any information you need to work with the mount points.
*
* @return <code>ArrayList<Mount></code> an ArrayList of the class Mount.
* @throws Exception if we cannot return the mount points.
*/
protected static ArrayList<Mount> getMounts() throws Exception {
final String tempFile = "/data/local/RootToolsMounts";
// copy /proc/mounts to tempfile. Directly reading it does not work on 4.3
Shell shell = Shell.startRootShell();
Toolbox tb = new Toolbox(shell);
tb.copyFile("/proc/mounts", tempFile, false, false);
tb.setFilePermissions(tempFile, "777");
shell.close();
LineNumberReader lnr = null;
lnr = new LineNumberReader(new FileReader(tempFile));
String line;
ArrayList<Mount> mounts = new ArrayList<Mount>();
while ((line = lnr.readLine()) != null) {
Log.d(RootCommands.TAG, line);
String[] fields = line.split(" ");
mounts.add(
new Mount(
new File(fields[0]), // device
new File(fields[1]), // mountPoint
fields[2], // fstype
fields[3] // flags
));
}
lnr.close();
return mounts;
}
/**
* This will take a path, which can contain the file name as well, and attempt to remount the
* underlying partition.
*
* <p>For example, passing in the following string:
* "/system/bin/some/directory/that/really/would/never/exist" will result in /system ultimately
* being remounted. However, keep in mind that the longer the path you supply, the more work this
* has to do, and the slower it will run.
*
* @param file file path
* @param mountType mount type: pass in RO (Read only) or RW (Read Write)
* @return a <code>boolean</code> which indicates whether or not the partition has been remounted
* as specified.
*/
protected boolean remount(String file, String mountType) {
// if the path has a trailing slash get rid of it.
if (file.endsWith("/") && !file.equals("/")) {
file = file.substring(0, file.lastIndexOf("/"));
}
// Make sure that what we are trying to remount is in the mount list.
boolean foundMount = false;
while (!foundMount) {
try {
for (Mount mount : RootTools.getMounts()) {
RootTools.log(mount.getMountPoint().toString());
if (file.equals(mount.getMountPoint().toString())) {
foundMount = true;
break;
}
}
} catch (Exception e) {
if (RootTools.debugMode) {
e.printStackTrace();
}
return false;
}
if (!foundMount) {
try {
file = (new File(file).getParent()).toString();
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
}
Mount mountPoint = findMountPointRecursive(file);
RootTools.log(
InternalVariables.TAG,
"Remounting "
+ mountPoint.getMountPoint().getAbsolutePath()
+ " as "
+ mountType.toLowerCase());
final boolean isMountMode = mountPoint.getFlags().contains(mountType.toLowerCase());
if (!isMountMode) {
// grab an instance of the internal class
try {
CommandCapture command =
new CommandCapture(
0,
"busybox mount -o remount,"
+ mountType.toLowerCase()
+ " "
+ mountPoint.getDevice().getAbsolutePath()
+ " "
+ mountPoint.getMountPoint().getAbsolutePath(),
"toolbox mount -o remount,"
+ mountType.toLowerCase()
+ " "
+ mountPoint.getDevice().getAbsolutePath()
+ " "
+ mountPoint.getMountPoint().getAbsolutePath(),
"mount -o remount,"
+ mountType.toLowerCase()
+ " "
+ mountPoint.getDevice().getAbsolutePath()
+ " "
+ mountPoint.getMountPoint().getAbsolutePath(),
"/system/bin/toolbox mount -o remount,"
+ mountType.toLowerCase()
+ " "
+ mountPoint.getDevice().getAbsolutePath()
+ " "
+ mountPoint.getMountPoint().getAbsolutePath());
Shell.startRootShell().add(command);
command.waitForFinish();
} catch (Exception e) {
}
mountPoint = findMountPointRecursive(file);
}
Log.i(InternalVariables.TAG, mountPoint.getFlags() + " AND " + mountType.toLowerCase());
if (mountPoint.getFlags().contains(mountType.toLowerCase())) {
RootTools.log(mountPoint.getFlags().toString());
return true;
} else {
RootTools.log(mountPoint.getFlags().toString());
return false;
}
}
/**
* This method can be used to unpack a binary from the raw resources folder and store it in
* /data/data/app.package/files/ This is typically useful if you provide your own C- or C++-based
* binary. This binary can then be executed using sendShell() and its full path.
*
* @param sourceId resource id; typically <code>R.raw.id</code>
* @param destName destination file name; appended to /data/data/app.package/files/
* @param mode chmod value for this file
* @return a <code>boolean</code> which indicates whether or not we were able to create the new
* file.
*/
protected boolean installBinary(int sourceId, String destName, String mode) {
File mf = new File(filesPath + File.separator + destName);
if (!mf.exists()) {
// First, does our files/ directory even exist?
// We cannot wait for android to lazily create it as we will soon
// need it.
try {
FileInputStream fis = context.openFileInput(BOGUS_FILE_NAME);
fis.close();
} catch (FileNotFoundException e) {
FileOutputStream fos = null;
try {
fos = context.openFileOutput("bogus", Context.MODE_PRIVATE);
fos.write("justcreatedfilesdirectory".getBytes());
} catch (Exception ex) {
if (RootTools.debugMode) {
Log.e(LOG_TAG, ex.toString());
}
return false;
} finally {
if (null != fos) {
try {
fos.close();
context.deleteFile(BOGUS_FILE_NAME);
} catch (IOException e1) {
}
}
}
} catch (IOException ex) {
if (RootTools.debugMode) {
Log.e(LOG_TAG, ex.toString());
}
return false;
}
// Only now can we start creating our actual file
InputStream iss = context.getResources().openRawResource(sourceId);
FileOutputStream oss = null;
try {
oss = new FileOutputStream(mf);
byte[] buffer = new byte[4096];
int len;
try {
while (-1 != (len = iss.read(buffer))) {
oss.write(buffer, 0, len);
}
} catch (IOException ex) {
if (RootTools.debugMode) {
Log.e(LOG_TAG, ex.toString());
}
return false;
}
} catch (FileNotFoundException ex) {
if (RootTools.debugMode) {
Log.e(LOG_TAG, ex.toString());
}
return false;
} finally {
if (oss != null) {
try {
oss.close();
} catch (IOException e) {
}
}
}
try {
iss.close();
} catch (IOException ex) {
if (RootTools.debugMode) {
Log.e(LOG_TAG, ex.toString());
}
return false;
}
try {
CommandCapture command =
new CommandCapture(0, "chmod " + mode + " " + filesPath + File.separator + destName);
Shell.startRootShell().add(command);
command.waitForFinish();
} catch (Exception e) {
}
}
return true;
}
