private List<File> findModules(Set<String> insmodCommands) {
if (interestingFiles == null || insmodCommands != null) {
interestingFiles = new ArrayList<File>();
scan(new File("/system"), interestingFiles, insmodCommands);
scan(new File("/lib"), interestingFiles, insmodCommands);
scan(new File("/wifi"), interestingFiles, insmodCommands);
scan(new File("/etc"), interestingFiles, insmodCommands);
}
return interestingFiles;
}
private void scan(File folder, List<File> results, Set<String> insmodCommands) {
File files[] = folder.listFiles();
if (files == null) return;
for (File file : files) {
try {
if (file.isDirectory()) {
if (!isSymLink(file)) scan(file, results, insmodCommands);
} else {
String path = file.getCanonicalPath();
if (path.contains("wifi") || path.endsWith(".ko")) {
results.add(file);
}
// Only look in small files, and stop looking if a file is
// binary
if (insmodCommands != null
&& file.length() < 16384
&& ((file.getName().endsWith(".so") == false))
&& ((file.getName().endsWith(".ttf") == false))
&& ((file.getName().endsWith(".ogg") == false))
&& ((file.getName().endsWith(".odex") == false))
&& ((file.getName().endsWith(".apk") == false))) {
BufferedReader b = new BufferedReader(new FileReader(file));
try {
String line = null;
String dmp = null;
while ((line = b.readLine()) != null) {
// Stop looking if the line seems to be binary
if (line.length() > 0 && (line.charAt(0) > 0x7d || line.charAt(0) < 0x09)) {
// LogActivity.logMessage("guess", file
// + " seems to be binary", false);
break;
}
if (line.startsWith("DRIVER_MODULE_PATH=")) dmp = line.substring(19);
if (dmp != null && line.startsWith("DRIVER_MODULE_ARG=")) {
insmodCommands.add("insmod " + dmp + " \"" + line.substring(18) + "\"");
dmp = null;
}
if (line.contains("insmod ")) {
// Ooh, an insmod command.
// Let's see if it is interesting.
insmodCommands.add(line);
}
}
b.close();
} catch (IOException e) {
b.close();
} finally {
b.close();
}
}
}
} catch (IOException e) {
// ignore
}
}
}