[ONOS-7129] Pipeliner for fabric pipeline

Change-Id: I86b44694e1251611359e8ddc8be2533a741230cc
diff --git a/pipelines/fabric/src/test/java/org/onosproject/pipelines/fabric/pipeliner/FabricFilteringPipelinerTest.java b/pipelines/fabric/src/test/java/org/onosproject/pipelines/fabric/pipeliner/FabricFilteringPipelinerTest.java
new file mode 100644
index 0000000..f3de7b7
--- /dev/null
+++ b/pipelines/fabric/src/test/java/org/onosproject/pipelines/fabric/pipeliner/FabricFilteringPipelinerTest.java
@@ -0,0 +1,355 @@
+/*
+ * Copyright 2017-present Open Networking Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.onosproject.pipelines.fabric.pipeliner;
+
+import org.junit.Test;
+import org.onlab.packet.Ethernet;
+import org.onlab.packet.MacAddress;
+import org.onlab.packet.VlanId;
+import org.onlab.util.ImmutableByteSequence;
+import org.onosproject.net.PortNumber;
+import org.onosproject.net.flow.DefaultFlowRule;
+import org.onosproject.net.flow.DefaultTrafficSelector;
+import org.onosproject.net.flow.DefaultTrafficTreatment;
+import org.onosproject.net.flow.FlowRule;
+import org.onosproject.net.flow.TableId;
+import org.onosproject.net.flow.TrafficSelector;
+import org.onosproject.net.flow.TrafficTreatment;
+import org.onosproject.net.flow.criteria.Criteria;
+import org.onosproject.net.flowobjective.DefaultFilteringObjective;
+import org.onosproject.net.flowobjective.FilteringObjective;
+import org.onosproject.net.flowobjective.ObjectiveError;
+import org.onosproject.net.group.GroupDescription;
+import org.onosproject.net.pi.runtime.PiAction;
+import org.onosproject.net.pi.runtime.PiActionParam;
+import org.onosproject.pipelines.fabric.FabricConstants;
+
+import java.util.List;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+/**
+ * Test cases for fabric.p4 pipeline filtering control block.
+ */
+public class FabricFilteringPipelinerTest extends FabricPipelinerTest {
+
+    /**
+     * Creates one rule for ingress_port_vlan table and 3 rules for
+     * fwd_classifier table (IPv4, IPv6 and MPLS unicast) when
+     * the condition is VLAN + MAC.
+     */
+    @Test
+    public void testRouterMacAndVlanFilter() {
+        FilteringObjective filteringObjective = buildFilteringObjective(ROUTER_MAC);
+        PipelinerTranslationResult result = pipeliner.pipelinerFilter.filter(filteringObjective);
+
+        List<FlowRule> flowRulesInstalled = (List<FlowRule>) result.flowRules();
+        List<GroupDescription> groupsInstalled = (List<GroupDescription>) result.groups();
+
+        assertTrue(groupsInstalled.isEmpty());
+
+        // in port vlan flow rule
+        FlowRule actualFlowRule = flowRulesInstalled.get(0);
+        FlowRule flowRuleExpected = buildExpectedVlanInPortRule(PORT_1,
+                                                                VlanId.NONE,
+                                                                VLAN_100,
+                                                                FabricConstants.TBL_INGRESS_PORT_VLAN_ID);
+        assertTrue(flowRuleExpected.exactMatch(actualFlowRule));
+
+        // forwarding classifier ipv4
+        actualFlowRule = flowRulesInstalled.get(1);
+        flowRuleExpected = buildExpectedFwdClassifierRule(PORT_1,
+                                                          ROUTER_MAC,
+                                                          Ethernet.TYPE_IPV4,
+                                                          FWD_IPV4_UNICAST);
+        assertTrue(flowRuleExpected.exactMatch(actualFlowRule));
+
+        // forwarding classifier ipv6
+        actualFlowRule = flowRulesInstalled.get(2);
+        flowRuleExpected = buildExpectedFwdClassifierRule(PORT_1,
+                                                          ROUTER_MAC,
+                                                          Ethernet.TYPE_IPV6,
+                                                          FWD_IPV6_UNICAST);
+        assertTrue(flowRuleExpected.exactMatch(actualFlowRule));
+
+        // forwarding classifier mpls
+        actualFlowRule = flowRulesInstalled.get(3);
+        flowRuleExpected = buildExpectedFwdClassifierRule(PORT_1,
+                                                          ROUTER_MAC,
+                                                          Ethernet.MPLS_UNICAST,
+                                                          FWD_MPLS);
+        assertTrue(flowRuleExpected.exactMatch(actualFlowRule));
+    }
+
+    /**
+     * Creates one rule for ingress_port_vlan table and one rule for
+     * fwd_classifier table (IPv4 multicast) when the condition is ipv4
+     * multicast mac address.
+     */
+    @Test
+    public void testIpv4MulticastFwdClass() {
+        TrafficTreatment treatment = DefaultTrafficTreatment.builder()
+                .pushVlan()
+                .setVlanId(VLAN_100)
+                .build();
+        FilteringObjective filteringObjective = DefaultFilteringObjective.builder()
+                .permit()
+                .withPriority(PRIORITY)
+                .withKey(Criteria.matchInPort(PORT_1))
+                .addCondition(Criteria.matchEthDst(MacAddress.IPV4_MULTICAST))
+                .addCondition(Criteria.matchVlanId(VlanId.NONE))
+                .withMeta(treatment)
+                .fromApp(APP_ID)
+                .makePermanent()
+                .add();
+        PipelinerTranslationResult result = pipeliner.pipelinerFilter.filter(filteringObjective);
+        List<FlowRule> flowRulesInstalled = (List<FlowRule>) result.flowRules();
+        List<GroupDescription> groupsInstalled = (List<GroupDescription>) result.groups();
+
+        assertTrue(groupsInstalled.isEmpty());
+
+        // in port vlan flow rule
+        FlowRule actualFlowRule = flowRulesInstalled.get(0);
+        FlowRule flowRuleExpected = buildExpectedVlanInPortRule(PORT_1,
+                                                                VlanId.NONE,
+                                                                VLAN_100,
+                                                                FabricConstants.TBL_INGRESS_PORT_VLAN_ID);
+        assertTrue(flowRuleExpected.exactMatch(actualFlowRule));
+
+        // forwarding classifier
+        actualFlowRule = flowRulesInstalled.get(1);
+        flowRuleExpected = buildExpectedFwdClassifierRule(PORT_1,
+                                                          MacAddress.IPV4_MULTICAST,
+                                                          Ethernet.TYPE_IPV4,
+                                                          FWD_IPV4_MULTICAST);
+        assertTrue(flowRuleExpected.exactMatch(actualFlowRule));
+    }
+
+    /**
+     * Creates one rule for ingress_port_vlan table and one rule for
+     * fwd_classifier table (IPv6 multicast) when the condition is ipv6
+     * multicast mac address.
+     */
+    @Test
+    public void testIpv6MulticastFwdClass() {
+        TrafficTreatment treatment = DefaultTrafficTreatment.builder()
+                .pushVlan()
+                .setVlanId(VLAN_100)
+                .build();
+        FilteringObjective filteringObjective = DefaultFilteringObjective.builder()
+                .permit()
+                .withPriority(PRIORITY)
+                .withKey(Criteria.matchInPort(PORT_1))
+                .addCondition(Criteria.matchEthDst(MacAddress.IPV6_MULTICAST))
+                .addCondition(Criteria.matchVlanId(VlanId.NONE))
+                .withMeta(treatment)
+                .fromApp(APP_ID)
+                .makePermanent()
+                .add();
+        PipelinerTranslationResult result = pipeliner.pipelinerFilter.filter(filteringObjective);
+        List<FlowRule> flowRulesInstalled = (List<FlowRule>) result.flowRules();
+        List<GroupDescription> groupsInstalled = (List<GroupDescription>) result.groups();
+
+        assertTrue(groupsInstalled.isEmpty());
+
+        // in port vlan flow rule
+        FlowRule actualFlowRule = flowRulesInstalled.get(0);
+        FlowRule flowRuleExpected = buildExpectedVlanInPortRule(PORT_1,
+                                                                VlanId.NONE,
+                                                                VLAN_100,
+                                                                FabricConstants.TBL_INGRESS_PORT_VLAN_ID);
+        assertTrue(flowRuleExpected.exactMatch(actualFlowRule));
+
+        // forwarding classifier
+        actualFlowRule = flowRulesInstalled.get(1);
+        flowRuleExpected = buildExpectedFwdClassifierRule(PORT_1,
+                                                          MacAddress.IPV6_MULTICAST,
+                                                          Ethernet.TYPE_IPV6,
+                                                          FWD_IPV6_MULTICAST);
+        assertTrue(flowRuleExpected.exactMatch(actualFlowRule));
+    }
+
+    /**
+     * Creates only one rule for ingress_port_vlan table if there is no condition
+     * of destination mac address.
+     * The packet will be handled by bridging table by default.
+     */
+    @Test
+    public void testFwdBridging() {
+        FilteringObjective filteringObjective = buildFilteringObjective(null);
+        PipelinerTranslationResult result = pipeliner.pipelinerFilter.filter(filteringObjective);
+        List<FlowRule> flowRulesInstalled = (List<FlowRule>) result.flowRules();
+        List<GroupDescription> groupsInstalled = (List<GroupDescription>) result.groups();
+
+        assertTrue(groupsInstalled.isEmpty());
+
+        // in port vlan flow rule
+        FlowRule actualFlowRule = flowRulesInstalled.get(0);
+        FlowRule flowRuleExpected = buildExpectedVlanInPortRule(PORT_1,
+                                                                VlanId.NONE,
+                                                                VLAN_100,
+                                                                FabricConstants.TBL_INGRESS_PORT_VLAN_ID);
+        assertTrue(flowRuleExpected.exactMatch(actualFlowRule));
+
+        // No rules in forwarding classifier, will do default action: set fwd type to bridging
+    }
+
+    /**
+     * We supports only PERMIT type of filtering objective.
+     */
+    @Test
+    public void testUnsupportedObjective() {
+        FilteringObjective filteringObjective = DefaultFilteringObjective.builder()
+                .deny()
+                .withKey(Criteria.matchInPort(PORT_1))
+                .addCondition(Criteria.matchVlanId(VLAN_100))
+                .fromApp(APP_ID)
+                .makePermanent()
+                .add();
+
+        PipelinerTranslationResult result = pipeliner.pipelinerFilter.filter(filteringObjective);
+        pipeliner.pipelinerFilter.filter(filteringObjective);
+
+        List<FlowRule> flowRulesInstalled = (List<FlowRule>) result.flowRules();
+        List<GroupDescription> groupsInstalled = (List<GroupDescription>) result.groups();
+
+        assertTrue(flowRulesInstalled.isEmpty());
+        assertTrue(groupsInstalled.isEmpty());
+
+        assertTrue(result.error().isPresent());
+        ObjectiveError error = result.error().get();
+        assertEquals(ObjectiveError.UNSUPPORTED, error);
+    }
+
+    /**
+     * Incorrect filtering key or filtering conditions test.
+     */
+    @Test
+    public void badParamTest() {
+        // Filtering objective should contains filtering key
+        FilteringObjective filteringObjective = DefaultFilteringObjective.builder()
+                .permit()
+                .addCondition(Criteria.matchVlanId(VLAN_100))
+                .fromApp(APP_ID)
+                .makePermanent()
+                .add();
+
+        PipelinerTranslationResult result = pipeliner.pipelinerFilter.filter(filteringObjective);
+        pipeliner.pipelinerFilter.filter(filteringObjective);
+
+        assertTrue(result.error().isPresent());
+        ObjectiveError error = result.error().get();
+        assertEquals(ObjectiveError.BADPARAMS, error);
+
+        // Filtering objective should use in_port as key
+        filteringObjective = DefaultFilteringObjective.builder()
+                .permit()
+                .withKey(Criteria.matchEthDst(ROUTER_MAC))
+                .addCondition(Criteria.matchVlanId(VLAN_100))
+                .withMeta(DefaultTrafficTreatment.emptyTreatment())
+                .fromApp(APP_ID)
+                .makePermanent()
+                .add();
+
+        result = pipeliner.pipelinerFilter.filter(filteringObjective);
+        pipeliner.pipelinerFilter.filter(filteringObjective);
+
+        assertTrue(result.error().isPresent());
+        error = result.error().get();
+        assertEquals(ObjectiveError.BADPARAMS, error);
+    }
+
+    /* Utilities */
+
+    private FilteringObjective buildFilteringObjective(MacAddress dstMac) {
+        TrafficTreatment treatment = DefaultTrafficTreatment.builder()
+                .pushVlan()
+                .setVlanId(VLAN_100)
+                .build();
+        DefaultFilteringObjective.Builder builder = DefaultFilteringObjective.builder()
+                .permit()
+                .withPriority(PRIORITY)
+                .withKey(Criteria.matchInPort(PORT_1));
+        if (dstMac != null) {
+            builder.addCondition(Criteria.matchEthDst(dstMac));
+        }
+
+        builder.addCondition(Criteria.matchVlanId(VlanId.NONE))
+                .withMeta(treatment)
+                .fromApp(APP_ID)
+                .makePermanent();
+        return builder.add();
+    }
+
+    private FlowRule buildExpectedVlanInPortRule(PortNumber inPort, VlanId vlanId,
+                                                 VlanId internalVlan,
+                                                 TableId tableId) {
+
+        TrafficSelector.Builder selector = DefaultTrafficSelector.builder()
+                .matchInPort(inPort);
+        TrafficTreatment.Builder treatment = DefaultTrafficTreatment.builder();
+        if (vlanId == null || vlanId.equals(VlanId.NONE)) {
+            selector.matchPi(VLAN_INVALID);
+            treatment.pushVlan();
+            treatment.setVlanId(internalVlan);
+        } else {
+            selector.matchPi(VLAN_VALID);
+            selector.matchVlanId(vlanId);
+        }
+
+        return DefaultFlowRule.builder()
+                .withPriority(PRIORITY)
+                .withSelector(selector.build())
+                .withTreatment(treatment.build())
+                .fromApp(APP_ID)
+                .forDevice(DEVICE_ID)
+                .makePermanent()
+                .forTable(tableId)
+                .build();
+    }
+
+    private FlowRule buildExpectedFwdClassifierRule(PortNumber inPort,
+                                                    MacAddress dstMac,
+                                                    short ethType,
+                                                    byte fwdClass) {
+        TrafficSelector selector = DefaultTrafficSelector.builder()
+                .matchEthDst(dstMac)
+                .matchInPort(inPort)
+                .matchEthType(ethType)
+                .build();
+        PiActionParam classParam = new PiActionParam(FabricConstants.ACT_PRM_FWD_TYPE_ID,
+                                                     ImmutableByteSequence.copyFrom(fwdClass));
+        PiAction fwdClassifierAction = PiAction.builder()
+                .withId(FabricConstants.ACT_SET_FORWARDING_TYPE_ID)
+                .withParameter(classParam)
+                .build();
+        TrafficTreatment treatment = DefaultTrafficTreatment.builder()
+                .piTableAction(fwdClassifierAction)
+                .build();
+
+        return DefaultFlowRule.builder()
+                .withPriority(PRIORITY)
+                .withSelector(selector)
+                .withTreatment(treatment)
+                .fromApp(APP_ID)
+                .forDevice(DEVICE_ID)
+                .makePermanent()
+                .forTable(FabricConstants.TBL_FWD_CLASSIFIER_ID)
+                .build();
+    }
+}