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VpnService: Avoid duplicating file check

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Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
This commit is contained in:
Samuel Holland 2017-11-28 20:40:58 -06:00
parent eb5fdf200a
commit 2b88150fd8
1 changed files with 17 additions and 11 deletions
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28
app/src/main/java/com/wireguard/android/backends/VpnService.java
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@ -261,6 +261,17 @@ public class VpnService extends Service
private class ConfigEnabler extends AsyncTask<Void, Void, Integer> {
private final Config config;
private final String[] paths = {
"/system/xbin",
"/system/sbin",
"/system/bin",
"/sbin",
"/bin",
"/xbin",
"/usr/sbin",
"/usr/bin",
"/usr/xbin",
};
private ConfigEnabler(final Config config) {
this.config = config;
@ -270,23 +281,18 @@ public class VpnService extends Service
protected Integer doInBackground(final Void... voids) {
if (!new File("/sys/module/wireguard").exists())
return -0xfff0001;
if (!existsInUsualSuspects("wg") || !existsInUsualSuspects("wg-quick"))
if (!existsInPath("wg") || !existsInPath("wg-quick"))
return -0xfff0002;
Log.i(TAG, "Running wg-quick up for " + config.getName());
final File configFile = new File(getFilesDir(), config.getName() + ".conf");
return rootShell.run(null, "wg-quick up '" + configFile.getPath() + "'");
}
private boolean existsInUsualSuspects(final String file) {
return new File("/system/xbin/" + file).exists() ||
new File("/system/sbin/" + file).exists() ||
new File("/system/bin/" + file).exists() ||
new File("/sbin/" + file).exists() ||
new File("/bin/" + file).exists() ||
new File("/xbin/" + file).exists() ||
new File("/usr/sbin/" + file).exists() ||
new File("/usr/bin/" + file).exists() ||
new File("/usr/xbin/" + file).exists();
private boolean existsInPath(final String file) {
for (final String path : paths)
if (new File(path, file).exists())
return true;
return false;
}
@Override