private void ensureRouteToHost() throws IOException {
Log.v(TAG.Connection, "Begin ensureRouteToHost");
// call getApnInfoFromSettings
String proxyAddr = mDmDatabase.getApnProxyFromSettings();
int inetAddr = lookupHost(proxyAddr);
Log.i(TAG.Connection, "inetAddr = " + inetAddr);
// get the addr form setting
if (!mConnMgr.requestRouteToHost(MTKConnectivity.TYPE_MOBILE_DM, inetAddr)) {
throw new IOException("Cannot establish route to proxy " + inetAddr);
}
}
@SuppressWarnings("TryWithIdenticalCatches")
protected static boolean checkRouteToHost(Context context, String host, boolean usingMmsRadio)
throws IOException {
InetAddress inetAddress = InetAddress.getByName(host);
if (!usingMmsRadio) {
if (inetAddress.isSiteLocalAddress()) {
throw new IOException("RFC1918 address in non-MMS radio situation!");
}
Log.w(TAG, "returning vacuous success since MMS radio is not in use");
return true;
}
if (inetAddress == null) {
throw new IOException("Unable to lookup host: InetAddress.getByName() returned null.");
}
byte[] ipAddressBytes = inetAddress.getAddress();
if (ipAddressBytes == null) {
Log.w(
TAG,
"resolved IP address bytes are null, returning true to attempt a connection anyway.");
return true;
}
Log.w(TAG, "Checking route to address: " + host + ", " + inetAddress.getHostAddress());
ConnectivityManager manager =
(ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
try {
final Method requestRouteMethod =
manager
.getClass()
.getMethod("requestRouteToHostAddress", Integer.TYPE, InetAddress.class);
final boolean routeToHostObtained =
(Boolean) requestRouteMethod.invoke(manager, MmsRadio.TYPE_MOBILE_MMS, inetAddress);
Log.w(TAG, "requestRouteToHostAddress(" + inetAddress + ") -> " + routeToHostObtained);
return routeToHostObtained;
} catch (NoSuchMethodException nsme) {
Log.w(TAG, nsme);
} catch (IllegalAccessException iae) {
Log.w(TAG, iae);
} catch (InvocationTargetException ite) {
Log.w(TAG, ite);
}
final int ipAddress = Conversions.byteArrayToIntLittleEndian(ipAddressBytes, 0);
final boolean routeToHostObtained =
manager.requestRouteToHost(MmsRadio.TYPE_MOBILE_MMS, ipAddress);
Log.w(TAG, "requestRouteToHost(" + ipAddress + ") -> " + routeToHostObtained);
return routeToHostObtained;
}
protected static boolean checkRouteToHost(Context context, String host, boolean usingMmsRadio)
throws IOException {
InetAddress inetAddress = InetAddress.getByName(host);
if (!usingMmsRadio) {
if (inetAddress.isSiteLocalAddress()) {
throw new IOException("RFC1918 address in non-MMS radio situation!");
}
Log.w(TAG, "returning vacuous success since MMS radio is not in use");
return true;
}
byte[] ipAddressBytes = inetAddress.getAddress();
if (ipAddressBytes == null || ipAddressBytes.length != 4) {
Log.w(TAG, "returning vacuous success since android.net package doesn't support IPv6");
return true;
}
Log.w(TAG, "Checking route to address: " + host + ", " + inetAddress.getHostAddress());
ConnectivityManager manager =
(ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
int ipAddress = Conversions.byteArrayToIntLittleEndian(ipAddressBytes, 0);
boolean routeToHostObtained = manager.requestRouteToHost(MmsRadio.TYPE_MOBILE_MMS, ipAddress);
Log.w(TAG, "requestRouteToHost result: " + routeToHostObtained);
return routeToHostObtained;
}