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IpServerTest: add test addRemoveTetherClient

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Bug: 250552545
Test: atest IpServerTest
Change-Id: Id8e801ccbf9a958c6b82de6022165d921761a86f
This commit is contained in:
Hungming Chen 2022-10-03 21:10:00 +08:00
commit afdf104d68
1 changed files with 54 additions and 0 deletions
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54
Tethering/tests/unit/src/android/net/ip/IpServerTest.java
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@ -53,6 +53,7 @@ import static org.mockito.Matchers.any;
import static org.mockito.Matchers.anyBoolean;
import static org.mockito.Matchers.anyString;
import static org.mockito.Matchers.eq;
import static org.mockito.Mockito.clearInvocations;
import static org.mockito.Mockito.doAnswer;
import static org.mockito.Mockito.doNothing;
import static org.mockito.Mockito.doReturn;
@ -108,6 +109,7 @@ import com.android.net.module.util.ip.IpNeighborMonitor;
import com.android.net.module.util.ip.IpNeighborMonitor.NeighborEvent;
import com.android.net.module.util.ip.IpNeighborMonitor.NeighborEventConsumer;
import com.android.networkstack.tethering.BpfCoordinator;
import com.android.networkstack.tethering.BpfCoordinator.ClientInfo;
import com.android.networkstack.tethering.BpfCoordinator.Ipv6ForwardingRule;
import com.android.networkstack.tethering.PrivateAddressCoordinator;
import com.android.networkstack.tethering.Tether6Value;
@ -1520,4 +1522,56 @@ public class IpServerTest {
verify(mBpfCoordinator, never()).tetherOffloadRuleAdd(
mIpServer, makeForwardingRule(IPSEC_IFINDEX, neigh, mac));
}
// TODO: move to BpfCoordinatorTest once IpNeighborMonitor is migrated to BpfCoordinator.
@Test
public void addRemoveTetherClient() throws Exception {
initTetheredStateMachine(TETHERING_WIFI, UPSTREAM_IFACE, false /* usingLegacyDhcp */,
DEFAULT_USING_BPF_OFFLOAD);
final int myIfindex = TEST_IFACE_PARAMS.index;
final int notMyIfindex = myIfindex - 1;
final InetAddress neighA = InetAddresses.parseNumericAddress("192.168.80.1");
final InetAddress neighB = InetAddresses.parseNumericAddress("192.168.80.2");
final InetAddress neighLL = InetAddresses.parseNumericAddress("169.254.0.1");
final InetAddress neighMC = InetAddresses.parseNumericAddress("224.0.0.1");
final MacAddress macNull = MacAddress.fromString("00:00:00:00:00:00");
final MacAddress macA = MacAddress.fromString("00:00:00:00:00:0a");
final MacAddress macB = MacAddress.fromString("11:22:33:00:00:0b");
// Events on other interfaces are ignored.
recvNewNeigh(notMyIfindex, neighA, NUD_REACHABLE, macA);
verifyNoMoreInteractions(mBpfCoordinator);
// Events on this interface are received and sent to BpfCoordinator.
recvNewNeigh(myIfindex, neighA, NUD_REACHABLE, macA);
verify(mBpfCoordinator).tetherOffloadClientAdd(mIpServer, new ClientInfo(myIfindex,
TEST_IFACE_PARAMS.macAddr, (Inet4Address) neighA, macA));
clearInvocations(mBpfCoordinator);
recvNewNeigh(myIfindex, neighB, NUD_REACHABLE, macB);
verify(mBpfCoordinator).tetherOffloadClientAdd(mIpServer, new ClientInfo(myIfindex,
TEST_IFACE_PARAMS.macAddr, (Inet4Address) neighB, macB));
clearInvocations(mBpfCoordinator);
// Link-local and multicast neighbors are ignored.
recvNewNeigh(myIfindex, neighLL, NUD_REACHABLE, macA);
verifyNoMoreInteractions(mBpfCoordinator);
recvNewNeigh(myIfindex, neighMC, NUD_REACHABLE, macA);
verifyNoMoreInteractions(mBpfCoordinator);
clearInvocations(mBpfCoordinator);
// A neighbor that is no longer valid causes the client to be removed.
// NUD_FAILED events do not have a MAC address.
recvNewNeigh(myIfindex, neighA, NUD_FAILED, null);
verify(mBpfCoordinator).tetherOffloadClientRemove(mIpServer, new ClientInfo(myIfindex,
TEST_IFACE_PARAMS.macAddr, (Inet4Address) neighA, macNull));
clearInvocations(mBpfCoordinator);
// A neighbor that is deleted causes the client to be removed.
recvDelNeigh(myIfindex, neighB, NUD_STALE, macB);
verify(mBpfCoordinator).tetherOffloadClientRemove(mIpServer, new ClientInfo(myIfindex,
TEST_IFACE_PARAMS.macAddr, (Inet4Address) neighB, macNull));
}
}