/* Test the working of the system router when it is configured to allow all
* traffic (full mesh)
*/
@Test
public void testGetForwardingActionSystemRtr() throws Exception {
expect(vRtrManager.findSubnetOwner(EasyMock.anyObject(IPV4Subnet.class)))
.andReturn(null)
.once();
expect(vRtrManager.findSubnetOwner(EasyMock.anyObject(IPV4Subnet.class)))
.andReturn("B|vrB")
.times(1);
replay(vRtrManager);
/* System Router */
VRouterImpl vrs = new VRouterImpl("rs", "system", vMac1, vRtrManager);
vrs.createInterface("if1", null, "A|vrA", true);
vrs.createInterface("if2", null, "B|vrB", true);
vrs.createInterface("ifexternal", null, "external|vrX", true);
VNS netVirtA1 = new VNS("A|netVirtA1");
int ipA1, ipB1, ipX;
ipA1 = IPv4.toIPv4Address("10.1.1.2");
ipB1 = IPv4.toIPv4Address("10.1.2.2");
ipX = IPv4.toIPv4Address("8.8.8.8");
ForwardingAction action;
/* Allow all communication */
vrs.addRoutingRule(
null,
null,
"10.0.0.0",
"255.255.255.255",
null,
null,
"10.0.0.0",
"255.255.255.255",
null,
null,
"permit");
/* Testing for a silent host. The dest device entity is null */
action = vrs.getForwardingAction("A|vrA", netVirtA1, ipA1, null, ipX);
assertEquals(RoutingAction.FORWARD, action.getAction());
assertEquals("external|vrX", action.getNextRtrName());
assertEquals(ipX, action.getNextHopIp());
assertEquals(null, action.getDstNetVirtName());
assertEquals(0, action.getNewSrcMac());
assertEquals(null, action.getNextHopGatewayPool());
assertEquals(null, action.getNextHopGatewayPoolRouter());
/* Inter tenant communication is allowed */
action = vrs.getForwardingAction("A|vrA", netVirtA1, ipA1, null, ipB1);
assertEquals(RoutingAction.FORWARD, action.getAction());
assertEquals("B|vrB", action.getNextRtrName());
assertEquals(ipB1, action.getNextHopIp());
assertEquals(null, action.getDstNetVirtName());
assertEquals(0, action.getNewSrcMac());
assertEquals(null, action.getNextHopGatewayPool());
assertEquals(null, action.getNextHopGatewayPoolRouter());
/* Communication from external tenant is correctly routed */
VNS netVirtX = new VNS("external|netVirtX");
action = vrs.getForwardingAction("external|vrX", netVirtX, ipX, netVirtA1, ipA1);
assertEquals(RoutingAction.FORWARD, action.getAction());
assertEquals("A|vrA", action.getNextRtrName());
assertEquals(ipA1, action.getNextHopIp());
assertEquals(null, action.getDstNetVirtName());
assertEquals(0, action.getNewSrcMac());
assertEquals(null, action.getNextHopGatewayPool());
assertEquals(null, action.getNextHopGatewayPoolRouter());
verify(vRtrManager);
}
@Test
public void testGetForwardingActionSilentHost() throws Exception {
expect(vRtrManager.findSubnetOwner(EasyMock.anyObject(IPV4Subnet.class)))
.andReturn("t2|r2")
.times(2);
expect(vRtrManager.findSubnetOwner(EasyMock.anyObject(IPV4Subnet.class)))
.andReturn(null)
.once();
vRtrManager.addSubnetOwner(
EasyMock.anyObject(IPV4Subnet.class), EasyMock.anyObject(String.class));
expectLastCall().times(3);
vRtrManager.addIfaceIpMap(EasyMock.anyInt(), EasyMock.anyObject(VRouterInterface.class));
expectLastCall().anyTimes();
replay(vRtrManager);
vr.createInterface("if1", "t1|netVirt1", null, true);
vr.createInterface("if2", "t1|netVirt2", null, true);
vr.createInterface("ifs", null, "system|rs", true);
vr.assignInterfaceAddr("if1", "10.1.1.1", "0.0.0.255");
vr.assignInterfaceAddr("if2", "10.1.2.1", "0.0.0.255");
VRouterImpl vr2 = new VRouterImpl("r2", "t2", vMac1, vRtrManager);
vr2.createInterface("if1", "t2|netVirt1", null, true);
vr2.createInterface("if2", "t2|netVirt2", null, true);
vr2.createInterface("ifs", null, "system|rs", true);
vr2.assignInterfaceAddr("if1", "10.2.1.1", "0.0.0.255");
/* External tenant router */
VRouterImpl vrx = new VRouterImpl("rx", "tx", vMac1, vRtrManager);
vrx.createInterface("if1", "tx|netVirtx", null, true);
vrx.createInterface("ifs", null, "system|rs", true);
/* System Router */
VRouterImpl vrs = new VRouterImpl("rs", "system", vMac1, vRtrManager);
vrs.createInterface("if1", null, "t1|r1", true);
vrs.createInterface("if2", null, "t2|r2", true);
vrs.createInterface("ifx", null, "tx|rx", true);
VNS netVirtA1 = new VNS("t1|netVirt1");
int ip1, ip2, ip3;
ip1 = IPv4.toIPv4Address("10.1.1.2");
ip2 = IPv4.toIPv4Address("10.1.2.2");
ip3 = IPv4.toIPv4Address("10.2.1.2");
ForwardingAction action;
/* Allow host 10.1.1.2 to talk to all other hosts */
vr.addRoutingRule(
null,
null,
"10.1.1.2",
"0.0.0.0",
null,
null,
"255.255.255.255",
"255.255.255.255",
null,
null,
"permit");
/* Testing for a silent host. The dest device entity is null */
action = vr.getForwardingAction("t1|netVirt1", netVirtA1, ip1, null, ip2);
assertEquals(RoutingAction.FORWARD, action.getAction());
assertEquals(null, action.getNextRtrName());
assertEquals(ip2, action.getNextHopIp());
assertEquals("t1|netVirt2", action.getDstNetVirtName());
assertEquals(vMac1.longValue(), action.getNewSrcMac());
assertEquals(null, action.getNextHopGatewayPool());
assertEquals(null, action.getNextHopGatewayPoolRouter());
action = vr.getForwardingAction("t1|netVirt1", netVirtA1, ip1, null, ip3);
assertEquals(RoutingAction.FORWARD, action.getAction());
assertEquals("system|rs", action.getNextRtrName());
assertEquals(ip3, action.getNextHopIp());
assertEquals(null, action.getDstNetVirtName());
assertEquals(0, action.getNewSrcMac());
assertEquals(null, action.getNextHopGatewayPool());
assertEquals(null, action.getNextHopGatewayPoolRouter());
/* Allow all hosts in NetVirtA1 subnet to talk to any other hosts */
vrs.addRoutingRule(
null,
null,
"10.1.1.0",
"0.0.0.255",
null,
null,
"0.0.0.0",
"255.255.255.255",
null,
null,
"permit");
action = vrs.getForwardingAction("t1|r1", netVirtA1, ip1, null, ip3);
assertEquals(RoutingAction.FORWARD, action.getAction());
assertEquals("t2|r2", action.getNextRtrName());
assertEquals(ip3, action.getNextHopIp());
assertEquals(null, action.getDstNetVirtName());
assertEquals(0, action.getNewSrcMac());
assertEquals(null, action.getNextHopGatewayPool());
assertEquals(null, action.getNextHopGatewayPoolRouter());
/* Send a packet to an unknown subnet and see that it is dropped
* Note that we have set the vRtrManager object to return null for the
* call to findSubnetOwner after the second time.
*/
ip3 = IPv4.toIPv4Address("192.168.0.1");
action = vrs.getForwardingAction("t1|r1", netVirtA1, ip1, null, ip3);
assertEquals(RoutingAction.DROP, action.getAction());
verify(vRtrManager);
}