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Nat-related commands porting

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Test: runtest frameworks-net passes
Test: manual testing of nat works
Change-Id: I759bc418153cf9ab302791d350331abaae8a7a24
This commit is contained in:
Luke Huang
2018-10-22 13:23:10 +09:00
parent 1d899f6be8
commit a31e073b57
1 changed files with 4 additions and 32 deletions
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36
services/core/java/com/android/server/NetworkManagementService.java
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@@ -1323,40 +1323,12 @@ public class NetworkManagementService extends INetworkManagementService.Stub
modifyInterfaceForward(false, fromIface, toIface);
}
private void modifyNat(String action, String internalInterface, String externalInterface)
throws SocketException {
final Command cmd = new Command("nat", action, internalInterface, externalInterface);
final NetworkInterface internalNetworkInterface = NetworkInterface.getByName(
internalInterface);
if (internalNetworkInterface == null) {
cmd.appendArg("0");
} else {
// Don't touch link-local routes, as link-local addresses aren't routable,
// kernel creates link-local routes on all interfaces automatically
List<InterfaceAddress> interfaceAddresses = excludeLinkLocal(
internalNetworkInterface.getInterfaceAddresses());
cmd.appendArg(interfaceAddresses.size());
for (InterfaceAddress ia : interfaceAddresses) {
InetAddress addr = NetworkUtils.getNetworkPart(
ia.getAddress(), ia.getNetworkPrefixLength());
cmd.appendArg(addr.getHostAddress() + "/" + ia.getNetworkPrefixLength());
}
}
try {
mConnector.execute(cmd);
} catch (NativeDaemonConnectorException e) {
throw e.rethrowAsParcelableException();
}
}
@Override
public void enableNat(String internalInterface, String externalInterface) {
mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG);
try {
modifyNat("enable", internalInterface, externalInterface);
} catch (SocketException e) {
mNetdService.tetherAddForward(internalInterface, externalInterface);
} catch (RemoteException | ServiceSpecificException e) {
throw new IllegalStateException(e);
}
}
@@ -1365,8 +1337,8 @@ public class NetworkManagementService extends INetworkManagementService.Stub
public void disableNat(String internalInterface, String externalInterface) {
mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG);
try {
modifyNat("disable", internalInterface, externalInterface);
} catch (SocketException e) {
mNetdService.tetherRemoveForward(internalInterface, externalInterface);
} catch (RemoteException | ServiceSpecificException e) {
throw new IllegalStateException(e);
}
}