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TestNetworkService: Add support for toggling carrier on tun/tap

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Adds support for setting carrier to on/off for a tun/tap interface. It
turns out that TUNSETCARRIER is also usable by tap interfaces, and
TUNSETLINK does not work as expected.

Test: atest EthernetManagerTest
Change-Id: I39d70e0a65a34e7a4c4df70c53e4cc781a24a213
This commit is contained in:
Patrick Rohr
2022-06-07 16:36:33 -07:00
parent 2ebff8a777
commit bbd16c57a0
4 changed files with 65 additions and 9 deletions
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2
framework/src/android/net/ITestNetworkManager.aidl
View File

@@ -32,6 +32,8 @@ interface ITestNetworkManager
TestNetworkInterface createInterface(boolean isTun, boolean bringUp, in LinkAddress[] addrs,
in @nullable String iface);
void setCarrierEnabled(in TestNetworkInterface iface, boolean enabled);
void setupTestNetwork(in String iface, in LinkProperties lp, in boolean isMetered,
in int[] administratorUids, in IBinder binder);

19
framework/src/android/net/TestNetworkManager.java
View File

@@ -231,4 +231,23 @@ public class TestNetworkManager {
throw e.rethrowFromSystemServer();
}
}
/**
* Enable / disable carrier on TestNetworkInterface
*
* Note: TUNSETCARRIER is not supported until kernel version 5.0.
* TODO: add RequiresApi annotation.
*
* @param iface the interface to configure.
* @param enabled true to turn carrier on, false to turn carrier off.
* @hide
*/
@RequiresPermission(Manifest.permission.MANAGE_TEST_NETWORKS)
public void setCarrierEnabled(@NonNull TestNetworkInterface iface, boolean enabled) {
try {
mService.setCarrierEnabled(iface, enabled);
} catch (RemoteException e) {
throw e.rethrowFromSystemServer();
}
}
}