Separate NAT from forwarding.
Bug: 19500693
Change-Id: I39878644e21d51def1c31d1857e815f473ef0938
diff --git a/services/core/java/com/android/server/NetworkManagementService.java b/services/core/java/com/android/server/NetworkManagementService.java
index 6719aa6..8c56c8c 100644
--- a/services/core/java/com/android/server/NetworkManagementService.java
+++ b/services/core/java/com/android/server/NetworkManagementService.java
@@ -1259,6 +1259,27 @@
return filtered;
}
+ private void modifyInterfaceForward(boolean add, String fromIface, String toIface) {
+ final Command cmd = new Command("ipfwd", add ? "add" : "remove", fromIface, toIface);
+ try {
+ mConnector.execute(cmd);
+ } catch (NativeDaemonConnectorException e) {
+ throw e.rethrowAsParcelableException();
+ }
+ }
+
+ @Override
+ public void startInterfaceForwarding(String fromIface, String toIface) {
+ mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG);
+ modifyInterfaceForward(true, fromIface, toIface);
+ }
+
+ @Override
+ public void stopInterfaceForwarding(String fromIface, String toIface) {
+ mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG);
+ modifyInterfaceForward(false, fromIface, toIface);
+ }
+
private void modifyNat(String action, String internalInterface, String externalInterface)
throws SocketException {
final Command cmd = new Command("nat", action, internalInterface, externalInterface);