Merge "Fixed UT and cleaned up code. 1. Fixed the UT issues in IngressAclServiceTes...
[ovsdb.git] / openstack / net-virt-providers / src / main / java / org / opendaylight / ovsdb / openstack / netvirt / providers / openflow13 / services / EgressAclService.java
index 0b81789f6a88de6558adba57efc84a5cd58cc0e9..7abb81c67e2209f6950e7d19180b9fcb36db352c 100644 (file)
@@ -20,12 +20,19 @@ import org.opendaylight.ovsdb.openstack.netvirt.providers.openflow13.Service;
 import org.opendaylight.ovsdb.openstack.netvirt.translator.NeutronSecurityGroup;
 import org.opendaylight.ovsdb.openstack.netvirt.translator.NeutronSecurityRule;
 import org.opendaylight.ovsdb.openstack.netvirt.translator.Neutron_IPs;
+import org.opendaylight.ovsdb.utils.mdsal.openflow.ActionUtils;
+import org.opendaylight.ovsdb.utils.mdsal.openflow.FlowUtils;
 import org.opendaylight.ovsdb.utils.mdsal.openflow.InstructionUtils;
 import org.opendaylight.ovsdb.utils.mdsal.openflow.MatchUtils;
 import org.opendaylight.ovsdb.utils.servicehelper.ServiceHelper;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.IpPrefix;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.IpPrefixBuilder;
 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.Ipv4Prefix;
 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.PortNumber;
 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev100924.MacAddress;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.list.Action;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.list.ActionBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.list.ActionKey;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowId;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.table.FlowBuilder;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.table.FlowKey;
@@ -34,14 +41,26 @@ import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.flow.M
 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.list.Instruction;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.list.InstructionBuilder;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.list.InstructionKey;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.instruction.ApplyActionsCaseBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.instruction.apply.actions._case.ApplyActionsBuilder;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.NodeBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.l2.types.rev130827.EtherType;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.arp.match.fields.ArpSourceHardwareAddressBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.ethernet.match.fields.EthernetTypeBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.match.EthernetMatchBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.match.layer._3.match.ArpMatchBuilder;
 import org.osgi.framework.BundleContext;
 import org.osgi.framework.ServiceReference;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import java.math.BigInteger;
+import java.net.Inet4Address;
+import java.net.Inet6Address;
+import java.net.InetAddress;
+import java.net.UnknownHostException;
 import java.util.List;
+import java.util.Map;
 
 public class EgressAclService extends AbstractServiceInstance implements EgressAclProvider, ConfigInterface {
 
@@ -135,7 +154,34 @@ public class EgressAclService extends AbstractServiceInstance implements EgressA
             String ipaddress = null;
             if (null != vmIp) {
                 ipaddress = vmIp.getIpAddress();
+                try {
+                    InetAddress address = InetAddress.getByName(ipaddress);
+                    // TODO: remove this when ipv6 support is implemented
+                    if (address instanceof Inet6Address) {
+                        LOG.debug("Skipping ip address {}. IPv6 support is not yet implemented.", address);
+                        return;
+                    }
+                } catch (UnknownHostException e) {
+                    LOG.warn("Invalid ip address {}", ipaddress, e);
+                    return;
+                }
+            }
+
+            if (null != portSecurityRule.getSecurityRuleRemoteIpPrefix()) {
+                String prefixStr = portSecurityRule.getSecurityRuleRemoteIpPrefix();
+                try {
+                    IpPrefix ipPrefix = IpPrefixBuilder.getDefaultInstance(prefixStr);
+                    // TODO: remove this when ipv6 support is implemented
+                    if (ipPrefix.getIpv6Prefix() != null) {
+                        LOG.debug("Skipping ip prefix {}. IPv6 support is not yet implemented.", ipPrefix);
+                        return;
+                    }
+                } catch (IllegalArgumentException e) {
+                    LOG.warn("Invalid ip prefix {}", prefixStr, e);
+                    return;
+                }
             }
+
             switch (portSecurityRule.getSecurityRuleProtocol()) {
               case MatchUtils.TCP:
                   LOG.debug("programPortSecurityRule: Rule matching TCP", portSecurityRule);
@@ -156,11 +202,46 @@ public class EgressAclService extends AbstractServiceInstance implements EgressA
                                 Constants.PROTO_PORT_PREFIX_MATCH_PRIORITY);
                   break;
               default:
-                  LOG.error("programPortSecurityRule: Protocol not supported", portSecurityRule);
+                  LOG.info("programPortSecurityAcl: Protocol is not TCP/UDP/ICMP but other " +
+                          "protocol = ", portSecurityRule.getSecurityRuleProtocol());
+                  egressOtherProtocolAclHandler(dpid, segmentationId, attachedMac,
+                                      portSecurityRule, ipaddress, write,
+                                      Constants.PROTO_PORT_PREFIX_MATCH_PRIORITY);
                   break;
             }
         }
+    }
+
+    private void egressOtherProtocolAclHandler(Long dpidLong, String segmentationId, String srcMac,
+                                               NeutronSecurityRule portSecurityRule, String dstAddress,
+                                               boolean write, Integer priority) {
+        MatchBuilder matchBuilder = new MatchBuilder();
+        String flowId = "Egress_Other_" + segmentationId + "_" + srcMac + "_";
+        matchBuilder = MatchUtils.createEtherMatchWithType(matchBuilder,srcMac,null);
+
+        short proto = 0;
+        try {
+            Integer protocol = new Integer(portSecurityRule.getSecurityRuleProtocol());
+            proto = protocol.shortValue();
+            flowId = flowId + proto;
+        } catch (NumberFormatException e) {
+            LOG.error("Protocol vlaue conversion failure", e);
+        }
+        matchBuilder = MatchUtils.createIpProtocolMatch(matchBuilder, proto);
+
+        if (null != dstAddress) {
+            flowId = flowId + dstAddress;
+            matchBuilder = MatchUtils.addRemoteIpPrefix(matchBuilder, null,
+                                                         MatchUtils.iPv4PrefixFromIPv4Address(dstAddress));
 
+        } else if (null != portSecurityRule.getSecurityRuleRemoteIpPrefix()) {
+            flowId = flowId + portSecurityRule.getSecurityRuleRemoteIpPrefix();
+            matchBuilder = MatchUtils.addRemoteIpPrefix(matchBuilder, null,
+                    new Ipv4Prefix(portSecurityRule.getSecurityRuleRemoteIpPrefix()));
+        }
+        flowId = flowId + "_Permit";
+        NodeBuilder nodeBuilder = FlowUtils.createNodeBuilder(dpidLong);
+        syncFlow(flowId, nodeBuilder, matchBuilder, priority, write, false, securityServicesManager.isConntrackEnabled());
     }
 
     @Override
@@ -168,22 +249,165 @@ public class EgressAclService extends AbstractServiceInstance implements EgressA
                                         long localPort, List<Neutron_IPs> srcAddressList,
                                         boolean isLastPortinBridge, boolean isComputePort ,boolean write) {
         // If it is the only port in the bridge add the rule to allow any DHCP client traffic
-        if (isLastPortinBridge) {
+        //if (isLastPortinBridge) {
             egressAclDhcpAllowClientTrafficFromVm(dpid, write, Constants.PROTO_DHCP_CLIENT_TRAFFIC_MATCH_PRIORITY);
-        }
+       // }
         if (isComputePort) {
+            programArpRule(dpid, segmentationId, localPort, attachedMac, write);
+            if (securityServicesManager.isConntrackEnabled()) {
+                programEgressAclFixedConntrackRule(dpid, segmentationId, localPort, attachedMac, write);
+            }
             // add rule to drop the DHCP server traffic originating from the vm.
             egressAclDhcpDropServerTrafficfromVm(dpid, localPort, write,
                                                  Constants.PROTO_DHCP_CLIENT_SPOOF_MATCH_PRIORITY_DROP);
             //Adds rule to check legitimate ip/mac pair for each packet from the vm
             for (Neutron_IPs srcAddress : srcAddressList) {
-                String addressWithPrefix = srcAddress.getIpAddress() + HOST_MASK;
-                egressAclAllowTrafficFromVmIpMacPair(dpid, localPort, attachedMac, addressWithPrefix,
-                                                     Constants.PROTO_VM_IP_MAC_MATCH_PRIORITY,write);
+                try {
+                    InetAddress address = InetAddress.getByName(srcAddress.getIpAddress());
+                    if (address instanceof Inet4Address) {
+                        String addressWithPrefix = srcAddress.getIpAddress() + HOST_MASK;
+                        egressAclAllowTrafficFromVmIpMacPair(dpid, localPort, attachedMac, addressWithPrefix,
+                                                             Constants.PROTO_VM_IP_MAC_MATCH_PRIORITY,write);
+                    } else {
+                        LOG.debug("Skipping IPv6 address {}. IPv6 support is not yet implemented.",
+                                  srcAddress.getIpAddress());
+                    }
+                } catch(UnknownHostException e) {
+                    LOG.warn("Invalid IP address {}", srcAddress.getIpAddress());
+                }
             }
         }
     }
 
+    private void programArpRule(Long dpid, String segmentationId, long localPort, String attachedMac, boolean write) {
+        String nodeName = Constants.OPENFLOW_NODE_PREFIX + dpid;
+        MatchBuilder matchBuilder = new MatchBuilder();
+        NodeBuilder nodeBuilder = createNodeBuilder(nodeName);
+        String flowId = "Egress_ARP_" + segmentationId + "_" + localPort + "_";
+
+        EthernetMatchBuilder ethernetType = new EthernetMatchBuilder();
+        EthernetTypeBuilder ethTypeBuilder = new EthernetTypeBuilder();
+        ethTypeBuilder.setType(new EtherType(0x0806L));
+        ethernetType.setEthernetType(ethTypeBuilder.build());
+        matchBuilder.setEthernetMatch(ethernetType.build());
+
+        ArpMatchBuilder arpDstMatch = new ArpMatchBuilder();
+        ArpSourceHardwareAddressBuilder arpSrc = new ArpSourceHardwareAddressBuilder();
+        arpSrc.setAddress(new MacAddress(attachedMac));
+        arpDstMatch.setArpSourceHardwareAddress(arpSrc.build());
+        matchBuilder.setLayer3Match(arpDstMatch.build());
+
+        syncFlow(flowId, nodeBuilder, matchBuilder, Constants.PROTO_MATCH_PRIORITY, write, false, false);
+    }
+
+    private void programEgressAclFixedConntrackRule(Long dpid,
+            String segmentationId, long localPort, String attachMac, boolean write) {
+         try {
+             String nodeName = Constants.OPENFLOW_NODE_PREFIX + dpid;
+             programConntrackUntrackRule(nodeName, segmentationId, localPort,attachMac,
+                                         Constants.CT_STATE_UNTRACKED_PRIORITY, write );
+             programConntrackTrackedPlusEstRule(nodeName, dpid, segmentationId, localPort,
+                                         Constants.CT_STATE_TRACKED_EST_PRIORITY, write );
+             programConntrackNewDropRule(nodeName, dpid, segmentationId, localPort,
+                                              Constants.CT_STATE_NEW_PRIORITY_DROP, write );
+             LOG.info("programEgressAclFixedConntrackRule :  default connection tracking rule are added.");
+         } catch (Exception e) {
+             LOG.error("Failed to add default conntrack rules : " , e);
+         }
+     }
+
+     private void programConntrackUntrackRule(String nodeName, String segmentationId,
+                                              long localPort, String attachMac, Integer priority, boolean write) {
+         MatchBuilder matchBuilder = new MatchBuilder();
+         NodeBuilder nodeBuilder = createNodeBuilder(nodeName);
+         String flowName = "Egress_Fixed_Conntrk_Untrk_" + segmentationId + "_" + localPort + "_";
+         matchBuilder = MatchUtils.createEtherMatchWithType(matchBuilder, attachMac, null);
+         matchBuilder = MatchUtils.addCtState(matchBuilder,0x00,0X80);
+         FlowBuilder flowBuilder = new FlowBuilder();
+         flowBuilder.setMatch(matchBuilder.build());
+         FlowUtils.initFlowBuilder(flowBuilder, flowName, getTable()).setPriority(priority);
+         if (write) {
+             InstructionBuilder ib = new InstructionBuilder();
+             List<Instruction> instructionsList = Lists.newArrayList();
+             InstructionsBuilder isb = new InstructionsBuilder();
+             ActionBuilder ab = new ActionBuilder();
+             ab.setAction(ActionUtils.nxConntrackAction(0, 0L, 0, (short)0x0));
+             // 0xff means no table, 0x0 is table = 0
+             ab.setOrder(0);
+             ab.setKey(new ActionKey(0));
+             List<Action> actionList = Lists.newArrayList();
+             actionList.add(ab.build());
+             ApplyActionsBuilder aab = new ApplyActionsBuilder();
+             aab.setAction(actionList);
+             ib.setOrder(0);
+             ib.setKey(new InstructionKey(0));
+             ib.setInstruction(new ApplyActionsCaseBuilder().setApplyActions(aab.build()).build());
+             instructionsList.add(ib.build());
+             isb.setInstruction(instructionsList);
+             flowBuilder.setInstructions(isb.build());
+             writeFlow(flowBuilder, nodeBuilder);
+             LOG.info("EGRESS:default programConntrackUntrackRule() flows are written");
+         } else {
+             removeFlow(flowBuilder, nodeBuilder);
+         }
+     }
+
+     private void programConntrackTrackedPlusEstRule(String nodeName, Long dpid, String segmentationId,
+                                                   long localPort,Integer priority, boolean write) {
+         MatchBuilder matchBuilder = new MatchBuilder();
+         NodeBuilder nodeBuilder = createNodeBuilder(nodeName);
+         String flowName = "Egress_Fixed_Conntrk_TrkEst_" + segmentationId + "_" + localPort + "_";
+         matchBuilder = MatchUtils.createInPortMatch(matchBuilder, dpid, localPort);
+         matchBuilder = MatchUtils.addCtState(matchBuilder,0x82, 0x82);
+         FlowBuilder flowBuilder = new FlowBuilder();
+         flowBuilder.setMatch(matchBuilder.build());
+         FlowUtils.initFlowBuilder(flowBuilder, flowName, getTable()).setPriority(priority);
+         if (write) {
+             InstructionBuilder ib = new InstructionBuilder();
+             List<Instruction> instructionsList = Lists.newArrayList();
+             InstructionsBuilder isb = new InstructionsBuilder();
+             // got to next table instruction
+             ib = this.getMutablePipelineInstructionBuilder();
+             ib.setOrder(0);
+             ib.setKey(new InstructionKey(0));
+             instructionsList.add(ib.build());
+             isb.setInstruction(instructionsList);
+             flowBuilder.setInstructions(isb.build());
+             writeFlow(flowBuilder, nodeBuilder);
+             LOG.info("EGRESS:default programConntrackTrackedPlusEstRule() flows are written");
+         } else {
+             removeFlow(flowBuilder, nodeBuilder);
+         }
+     }
+
+     private void programConntrackNewDropRule(String nodeName, Long dpid, String segmentationId,
+                                              long localPort, Integer priority, boolean write) {
+         MatchBuilder matchBuilder = new MatchBuilder();
+         NodeBuilder nodeBuilder = createNodeBuilder(nodeName);
+         String flowName = "Egress_Fixed_Conntrk_NewDrop_" + segmentationId + "_" + localPort + "_";
+         matchBuilder = MatchUtils.createInPortMatch(matchBuilder, dpid, localPort);
+         matchBuilder = MatchUtils.addCtState(matchBuilder,0x01, 0x01);
+         FlowBuilder flowBuilder = new FlowBuilder();
+         flowBuilder.setMatch(matchBuilder.build());
+         FlowUtils.initFlowBuilder(flowBuilder, flowName, getTable()).setPriority(priority);
+         if (write) {
+             InstructionBuilder ib = new InstructionBuilder();
+             InstructionsBuilder isb = new InstructionsBuilder();
+             List<Instruction> instructions = Lists.newArrayList();
+             InstructionUtils.createDropInstructions(ib);
+             ib.setOrder(0);
+             ib.setKey(new InstructionKey(0));
+             instructions.add(ib.build());
+             isb.setInstruction(instructions);
+             LOG.debug("Instructions contain: {}", ib.getInstruction());
+             flowBuilder.setInstructions(isb.build());
+             writeFlow(flowBuilder, nodeBuilder);
+             LOG.info("EGRESS:default programConntrackNewDropRule() flows are written");
+         } else {
+             removeFlow(flowBuilder, nodeBuilder);
+         }
+     }
+
     /**
      * Allows IPv4 packet egress from the src mac address.
      * @param dpidLong the dpid
@@ -194,12 +418,11 @@ public class EgressAclService extends AbstractServiceInstance implements EgressA
      */
     private void egressAclIPv4(Long dpidLong, String segmentationId, String srcMac,
                                boolean write, Integer protoPortMatchPriority ) {
-        String nodeName = Constants.OPENFLOW_NODE_PREFIX + dpidLong;
+        NodeBuilder nodeBuilder = FlowUtils.createNodeBuilder(dpidLong);
         MatchBuilder matchBuilder = new MatchBuilder();
-        NodeBuilder nodeBuilder = createNodeBuilder(nodeName);
         String flowId = "Egress_IP" + segmentationId + "_" + srcMac + "_Permit_";
         matchBuilder = MatchUtils.createEtherMatchWithType(matchBuilder,srcMac,null);
-        syncFlow(flowId, nodeBuilder, matchBuilder, protoPortMatchPriority, write, false);
+        syncFlow(flowId, nodeBuilder, matchBuilder, protoPortMatchPriority, write, false, false);
     }
 
     /**
@@ -217,6 +440,7 @@ public class EgressAclService extends AbstractServiceInstance implements EgressA
     private void egressAclTcp(Long dpidLong, String segmentationId, String srcMac,
                               NeutronSecurityRule portSecurityRule, String dstAddress,
                               boolean write, Integer protoPortMatchPriority) {
+        boolean portRange = false;
         MatchBuilder matchBuilder = new MatchBuilder();
         String flowId = "Egress_TCP_" + segmentationId + "_" + srcMac + "_";
         matchBuilder = MatchUtils.createEtherMatchWithType(matchBuilder,srcMac,null);
@@ -231,29 +455,38 @@ public class EgressAclService extends AbstractServiceInstance implements EgressA
             if (portSecurityRule.getSecurityRulePortMin().equals(PORT_RANGE_MIN)
                     && portSecurityRule.getSecurityRulePortMax().equals(PORT_RANGE_MAX)) {
                 flowId = flowId + portSecurityRule.getSecurityRulePortMin() + "_"
-                    + portSecurityRule.getSecurityRulePortMax() + "_";
+                            + portSecurityRule.getSecurityRulePortMax() + "_";
                 matchBuilder = MatchUtils.addLayer4Match(matchBuilder, MatchUtils.TCP_SHORT, 0, 0);
+            } else {
+                portRange = true;
             }
-            /*TODO TCP PortRange Match*/
-
         }
-
         if (null != dstAddress) {
             flowId = flowId + dstAddress;
             matchBuilder = MatchUtils.addRemoteIpPrefix(matchBuilder,null,
-                                                        MatchUtils.iPv4PrefixFromIPv4Address(dstAddress));
+                                      MatchUtils.iPv4PrefixFromIPv4Address(dstAddress));
 
         } else if (null != portSecurityRule.getSecurityRuleRemoteIpPrefix()) {
             flowId = flowId + portSecurityRule.getSecurityRuleRemoteIpPrefix();
             matchBuilder = MatchUtils.addRemoteIpPrefix(matchBuilder,null,
-                                                        new Ipv4Prefix(portSecurityRule
-                                                                       .getSecurityRuleRemoteIpPrefix()));
+                                      new Ipv4Prefix(portSecurityRule.getSecurityRuleRemoteIpPrefix()));
+        }
+        NodeBuilder nodeBuilder = FlowUtils.createNodeBuilder(dpidLong);
+        if (portRange) {
+            Map<Integer, Integer> portMaskMap = MatchUtils
+                    .getLayer4MaskForRange(portSecurityRule.getSecurityRulePortMin(),
+                                           portSecurityRule.getSecurityRulePortMax());
+            for (Integer port: portMaskMap.keySet()) {
+                String rangeflowId = flowId + port + "_" + portMaskMap.get(port) + "_";
+                rangeflowId = rangeflowId + "_Permit";
+                MatchUtils.addLayer4MatchWithMask(matchBuilder, MatchUtils.TCP_SHORT,
+                                                  0, port, portMaskMap.get(port));
+                syncFlow(rangeflowId, nodeBuilder, matchBuilder, protoPortMatchPriority, write, false, securityServicesManager.isConntrackEnabled());
+            }
+        } else {
+            flowId = flowId + "_Permit";
+            syncFlow(flowId, nodeBuilder, matchBuilder, protoPortMatchPriority, write, false, securityServicesManager.isConntrackEnabled());
         }
-        flowId = flowId + "_Permit";
-        String nodeName = Constants.OPENFLOW_NODE_PREFIX + dpidLong;
-        NodeBuilder nodeBuilder = createNodeBuilder(nodeName);
-        syncFlow(flowId, nodeBuilder, matchBuilder, protoPortMatchPriority, write, false);
-
     }
 
     /**
@@ -271,28 +504,37 @@ public class EgressAclService extends AbstractServiceInstance implements EgressA
     private void egressAclIcmp(Long dpidLong, String segmentationId, String srcMac,
                                NeutronSecurityRule portSecurityRule, String dstAddress,
                                boolean write, Integer protoPortMatchPriority) {
+
         MatchBuilder matchBuilder = new MatchBuilder();
-        String flowId = "Egress_ICMP_" + segmentationId + "_" + srcMac + "_"
-                    + portSecurityRule.getSecurityRulePortMin().shortValue() + "_"
-                    + portSecurityRule.getSecurityRulePortMax().shortValue() + "_";
+        String flowId = "Egress_ICMP_" + segmentationId + "_" + srcMac + "_";
         matchBuilder = MatchUtils.createEtherMatchWithType(matchBuilder,srcMac,null);
-        matchBuilder = MatchUtils.createICMPv4Match(matchBuilder,
-                                                    portSecurityRule.getSecurityRulePortMin().shortValue(),
-                                                    portSecurityRule.getSecurityRulePortMax().shortValue());
+        /*Custom ICMP Match */
+        if (portSecurityRule.getSecurityRulePortMin() != null &&
+                             portSecurityRule.getSecurityRulePortMax() != null) {
+            flowId = flowId + portSecurityRule.getSecurityRulePortMin().shortValue() + "_"
+                    + portSecurityRule.getSecurityRulePortMax().shortValue() + "_";
+            matchBuilder = MatchUtils.createICMPv4Match(matchBuilder,
+                    portSecurityRule.getSecurityRulePortMin().shortValue(),
+                    portSecurityRule.getSecurityRulePortMax().shortValue());
+        } else {
+            /* All ICMP Match */ // We are getting from neutron NULL for both min and max
+            flowId = flowId + "all" + "_" ;
+            matchBuilder = MatchUtils.createICMPv4Match(matchBuilder, MatchUtils.ALL_ICMP, MatchUtils.ALL_ICMP);
+        }
         if (null != dstAddress) {
             flowId = flowId + dstAddress;
             matchBuilder = MatchUtils.addRemoteIpPrefix(matchBuilder,null,
                     MatchUtils.iPv4PrefixFromIPv4Address(dstAddress));
         } else if (null != portSecurityRule.getSecurityRuleRemoteIpPrefix()) {
             flowId = flowId + portSecurityRule.getSecurityRuleRemoteIpPrefix();
-            matchBuilder = MatchUtils.addRemoteIpPrefix(matchBuilder,null,
+            if (!portSecurityRule.getSecurityRuleRemoteIpPrefix().contains("/0")) {
+                matchBuilder = MatchUtils.addRemoteIpPrefix(matchBuilder,null,
                     new Ipv4Prefix(portSecurityRule.getSecurityRuleRemoteIpPrefix()));
+            }
         }
         flowId = flowId + "_Permit";
-        String nodeName = Constants.OPENFLOW_NODE_PREFIX + dpidLong;
-        NodeBuilder nodeBuilder = createNodeBuilder(nodeName);
-        syncFlow(flowId, nodeBuilder, matchBuilder, protoPortMatchPriority, write, false);
-
+        NodeBuilder nodeBuilder = FlowUtils.createNodeBuilder(dpidLong);
+        syncFlow(flowId, nodeBuilder, matchBuilder, protoPortMatchPriority, write, false, securityServicesManager.isConntrackEnabled());
     }
 
     /**
@@ -310,7 +552,7 @@ public class EgressAclService extends AbstractServiceInstance implements EgressA
     private void egressAclUdp(Long dpidLong, String segmentationId, String srcMac,
                               NeutronSecurityRule portSecurityRule, String dstAddress,
                               boolean write, Integer protoPortMatchPriority) {
-
+        boolean portRange = false;
         MatchBuilder matchBuilder = new MatchBuilder();
         String flowId = "Egress_UDP_" + segmentationId + "_" + srcMac + "_";
         matchBuilder = MatchUtils.createEtherMatchWithType(matchBuilder,srcMac,null);
@@ -327,272 +569,35 @@ public class EgressAclService extends AbstractServiceInstance implements EgressA
                 flowId = flowId + portSecurityRule.getSecurityRulePortMin() + "_"
                     + portSecurityRule.getSecurityRulePortMax() + "_";
                 matchBuilder = MatchUtils.addLayer4Match(matchBuilder, MatchUtils.UDP_SHORT, 0, 0);
+            } else {
+                portRange = true;
             }
-            /*TODO UDP PortRange Match*/
-
         }
-
         if (null != dstAddress) {
             flowId = flowId + dstAddress;
             matchBuilder = MatchUtils.addRemoteIpPrefix(matchBuilder,null,
                                                         MatchUtils.iPv4PrefixFromIPv4Address(dstAddress));
-
         } else if (null != portSecurityRule.getSecurityRuleRemoteIpPrefix()) {
             flowId = flowId + portSecurityRule.getSecurityRuleRemoteIpPrefix();
             matchBuilder = MatchUtils.addRemoteIpPrefix(matchBuilder, null,
                                                         new Ipv4Prefix(portSecurityRule
                                                                        .getSecurityRuleRemoteIpPrefix()));
         }
-        flowId = flowId + "_Permit";
-        String nodeName = Constants.OPENFLOW_NODE_PREFIX + dpidLong;
-        NodeBuilder nodeBuilder = createNodeBuilder(nodeName);
-        syncFlow(flowId, nodeBuilder, matchBuilder, protoPortMatchPriority, write, false);
-
-    }
-    public void egressACLDefaultTcpDrop(Long dpidLong, String segmentationId, String attachedMac,
-                                        int priority, boolean write) {
-
-        String nodeName = Constants.OPENFLOW_NODE_PREFIX + dpidLong;
-        MatchBuilder matchBuilder = new MatchBuilder();
-        NodeBuilder nodeBuilder = createNodeBuilder(nodeName);
-        FlowBuilder flowBuilder = new FlowBuilder();
-
-        flowBuilder.setMatch(MatchUtils.createSmacTcpPortWithFlagMatch(matchBuilder,
-                                                                       attachedMac, Constants.TCP_SYN, segmentationId).build());
-        LOG.debug("MatchBuilder contains: {}", flowBuilder.getMatch());
-
-        String flowId = "TCP_Syn_Egress_Default_Drop_" + segmentationId + "_" + attachedMac;
-        flowBuilder.setId(new FlowId(flowId));
-        FlowKey key = new FlowKey(new FlowId(flowId));
-        flowBuilder.setStrict(false);
-        flowBuilder.setPriority(priority);
-        flowBuilder.setBarrier(true);
-        flowBuilder.setTableId(this.getTable());
-        flowBuilder.setKey(key);
-        flowBuilder.setFlowName(flowId);
-        flowBuilder.setHardTimeout(0);
-        flowBuilder.setIdleTimeout(0);
-
-        if (write) {
-            // Instantiate the Builders for the OF Actions and Instructions
-            InstructionBuilder ib = new InstructionBuilder();
-            InstructionsBuilder isb = new InstructionsBuilder();
-            List<Instruction> instructions = Lists.newArrayList();
-
-            InstructionUtils.createDropInstructions(ib);
-            ib.setOrder(0);
-            ib.setKey(new InstructionKey(0));
-            instructions.add(ib.build());
-            // Add InstructionBuilder to the Instruction(s)Builder List
-            isb.setInstruction(instructions);
-
-            LOG.debug("Instructions contain: {}", ib.getInstruction());
-            // Add InstructionsBuilder to FlowBuilder
-            flowBuilder.setInstructions(isb.build());
-            writeFlow(flowBuilder, nodeBuilder);
-        } else {
-            removeFlow(flowBuilder, nodeBuilder);
-        }
-    }
-
-    public void egressACLTcpPortWithPrefix(Long dpidLong, String segmentationId, String attachedMac, boolean write,
-                                           Integer securityRulePortMin, String securityRuleIpPrefix, Integer protoPortPrefixMatchPriority) {
-
-        String nodeName = Constants.OPENFLOW_NODE_PREFIX + dpidLong;
-        PortNumber tcpPort = new PortNumber(securityRulePortMin);
-        MatchBuilder matchBuilder = new MatchBuilder();
-        NodeBuilder nodeBuilder = createNodeBuilder(nodeName);
-        FlowBuilder flowBuilder = new FlowBuilder();
-        Ipv4Prefix srcIpPrefix = new Ipv4Prefix(securityRuleIpPrefix);
-
-        flowBuilder.setMatch(MatchUtils
-                             .createSmacTcpSynDstIpPrefixTcpPort(matchBuilder, new MacAddress(attachedMac),
-                                                                 tcpPort, Constants.TCP_SYN, segmentationId, srcIpPrefix).build());
-
-        LOG.debug(" MatchBuilder contains:  {}", flowBuilder.getMatch());
-        String flowId = "UcastEgress_" + segmentationId + "_" + attachedMac +
-                securityRulePortMin + securityRuleIpPrefix;
-        // Add Flow Attributes
-        flowBuilder.setId(new FlowId(flowId));
-        FlowKey key = new FlowKey(new FlowId(flowId));
-        flowBuilder.setStrict(false);
-        flowBuilder.setPriority(protoPortPrefixMatchPriority);
-        flowBuilder.setBarrier(true);
-        flowBuilder.setTableId(this.getTable());
-        flowBuilder.setKey(key);
-        flowBuilder.setFlowName(flowId);
-        flowBuilder.setHardTimeout(0);
-        flowBuilder.setIdleTimeout(0);
-
-        if (write) {
-            // Instantiate the Builders for the OF Actions and Instructions
-            InstructionsBuilder isb = new InstructionsBuilder();
-            List<Instruction> instructionsList = Lists.newArrayList();
-
-            InstructionBuilder ib = this.getMutablePipelineInstructionBuilder();
-            ib.setOrder(0);
-            ib.setKey(new InstructionKey(0));
-            instructionsList.add(ib.build());
-            isb.setInstruction(instructionsList);
-
-            LOG.debug("Instructions contain: {}", ib.getInstruction());
-            // Add InstructionsBuilder to FlowBuilder
-            flowBuilder.setInstructions(isb.build());
-            writeFlow(flowBuilder, nodeBuilder);
-        } else {
-            removeFlow(flowBuilder, nodeBuilder);
-        }
-    }
-
-
-
-    public void egressAllowProto(Long dpidLong, String segmentationId, String attachedMac, boolean write,
-                                 String securityRuleProtcol, Integer protoMatchPriority) {
-
-        String nodeName = Constants.OPENFLOW_NODE_PREFIX + dpidLong;
-        MatchBuilder matchBuilder = new MatchBuilder();
-        NodeBuilder nodeBuilder = createNodeBuilder(nodeName);
-        FlowBuilder flowBuilder = new FlowBuilder();
-
-        flowBuilder.setMatch(MatchUtils
-                             .createDmacIpTcpSynMatch(matchBuilder, new MacAddress(attachedMac), null, null).build());
-        flowBuilder.setMatch(MatchUtils
-                             .createTunnelIDMatch(matchBuilder, new BigInteger(segmentationId)).build());
-
-        LOG.debug("MatchBuilder contains:  {}", flowBuilder.getMatch());
-        String flowId = "EgressAllProto_" + segmentationId + "_" +
-                attachedMac + "_AllowEgressTCPSyn_" + securityRuleProtcol;
-        // Add Flow Attributes
-        flowBuilder.setId(new FlowId(flowId));
-        FlowKey key = new FlowKey(new FlowId(flowId));
-        flowBuilder.setStrict(false);
-        flowBuilder.setPriority(protoMatchPriority);
-        flowBuilder.setBarrier(true);
-        flowBuilder.setTableId(this.getTable());
-        flowBuilder.setKey(key);
-        flowBuilder.setFlowName(flowId);
-        flowBuilder.setHardTimeout(0);
-        flowBuilder.setIdleTimeout(0);
-
-        if (write) {
-            // Instantiate the Builders for the OF Actions and Instructions
-            InstructionsBuilder isb = new InstructionsBuilder();
-            List<Instruction> instructionsList = Lists.newArrayList();
-
-            InstructionBuilder ib = this.getMutablePipelineInstructionBuilder();
-            ib.setOrder(0);
-            ib.setKey(new InstructionKey(0));
-            instructionsList.add(ib.build());
-            isb.setInstruction(instructionsList);
-
-            LOG.debug("Instructions contain: {}", ib.getInstruction());
-            // Add InstructionsBuilder to FlowBuilder
-            flowBuilder.setInstructions(isb.build());
-            writeFlow(flowBuilder, nodeBuilder);
-        } else {
-            removeFlow(flowBuilder, nodeBuilder);
-        }
-    }
-
-    public void egressACLPermitAllProto(Long dpidLong, String segmentationId, String attachedMac,
-                                        boolean write, String securityRuleIpPrefix, Integer protoPortMatchPriority) {
-
-        String nodeName = Constants.OPENFLOW_NODE_PREFIX + dpidLong;
-        MatchBuilder matchBuilder = new MatchBuilder();
-        NodeBuilder nodeBuilder = createNodeBuilder(nodeName);
-        FlowBuilder flowBuilder = new FlowBuilder();
-
-        flowBuilder.setMatch(MatchUtils.createTunnelIDMatch(matchBuilder, new BigInteger(segmentationId))
-                             .build());
-        if (securityRuleIpPrefix != null) {
-            Ipv4Prefix srcIpPrefix = new Ipv4Prefix(securityRuleIpPrefix);
-            flowBuilder.setMatch(MatchUtils
-                                 .createSmacIpTcpSynMatch(matchBuilder, new MacAddress(attachedMac), null, srcIpPrefix)
-                                 .build());
-        } else {
-            flowBuilder.setMatch(MatchUtils
-                                 .createSmacIpTcpSynMatch(matchBuilder, new MacAddress(attachedMac), null, null)
-                                 .build());
-        }
-        LOG.debug("MatchBuilder contains: {}", flowBuilder.getMatch());
-        String flowId = "Egress_Proto_ACL" + segmentationId + "_" +
-                attachedMac + "_Permit_" + securityRuleIpPrefix;
-        // Add Flow Attributes
-        flowBuilder.setId(new FlowId(flowId));
-        FlowKey key = new FlowKey(new FlowId(flowId));
-        flowBuilder.setStrict(false);
-        flowBuilder.setPriority(protoPortMatchPriority);
-        flowBuilder.setBarrier(true);
-        flowBuilder.setTableId(this.getTable());
-        flowBuilder.setKey(key);
-        flowBuilder.setFlowName(flowId);
-        flowBuilder.setHardTimeout(0);
-        flowBuilder.setIdleTimeout(0);
-
-        if (write) {
-            // Instantiate the Builders for the OF Actions and Instructions
-            InstructionsBuilder isb = new InstructionsBuilder();
-            List<Instruction> instructionsList = Lists.newArrayList();
-
-            InstructionBuilder ib = this.getMutablePipelineInstructionBuilder();
-            ib.setOrder(0);
-            ib.setKey(new InstructionKey(0));
-            instructionsList.add(ib.build());
-            isb.setInstruction(instructionsList);
-
-            LOG.debug("Instructions contain: {}", ib.getInstruction());
-            // Add InstructionsBuilder to FlowBuilder
-            flowBuilder.setInstructions(isb.build());
-            writeFlow(flowBuilder, nodeBuilder);
-        } else {
-            removeFlow(flowBuilder, nodeBuilder);
-        }
-    }
-
-
-    public void egressACLTcpSyn(Long dpidLong, String segmentationId, String attachedMac, boolean write,
-                                Integer securityRulePortMin, Integer protoPortMatchPriority) {
-
-        String nodeName = Constants.OPENFLOW_NODE_PREFIX + dpidLong;
-        PortNumber tcpPort = new PortNumber(securityRulePortMin);
-        MatchBuilder matchBuilder = new MatchBuilder();
-        NodeBuilder nodeBuilder = createNodeBuilder(nodeName);
-        FlowBuilder flowBuilder = new FlowBuilder();
-
-        flowBuilder.setMatch(MatchUtils.createSmacTcpSyn(matchBuilder, attachedMac, tcpPort,
-                                                         Constants.TCP_SYN, segmentationId).build());
-
-        LOG.debug("MatchBuilder contains: {}", flowBuilder.getMatch());
-        String flowId = "Ucast_this.getTable()" + segmentationId + "_" + attachedMac + securityRulePortMin;
-        // Add Flow Attributes
-        flowBuilder.setId(new FlowId(flowId));
-        FlowKey key = new FlowKey(new FlowId(flowId));
-        flowBuilder.setStrict(false);
-        flowBuilder.setPriority(protoPortMatchPriority);
-        flowBuilder.setBarrier(true);
-        flowBuilder.setTableId(this.getTable());
-        flowBuilder.setKey(key);
-        flowBuilder.setFlowName(flowId);
-        flowBuilder.setHardTimeout(0);
-        flowBuilder.setIdleTimeout(0);
-
-        if (write) {
-            // Instantiate the Builders for the OF Actions and Instructions
-            InstructionsBuilder isb = new InstructionsBuilder();
-            List<Instruction> instructionsList = Lists.newArrayList();
-
-            InstructionBuilder ib = this.getMutablePipelineInstructionBuilder();
-            ib.setOrder(0);
-            ib.setKey(new InstructionKey(0));
-            instructionsList.add(ib.build());
-            isb.setInstruction(instructionsList);
-
-            LOG.debug("Instructions contain: {}", ib.getInstruction());
-            // Add InstructionsBuilder to FlowBuilder
-            flowBuilder.setInstructions(isb.build());
-            writeFlow(flowBuilder, nodeBuilder);
+        NodeBuilder nodeBuilder = FlowUtils.createNodeBuilder(dpidLong);
+        if (portRange) {
+            Map<Integer, Integer> portMaskMap = MatchUtils
+                    .getLayer4MaskForRange(portSecurityRule.getSecurityRulePortMin(),
+                                           portSecurityRule.getSecurityRulePortMax());
+            for (Integer port: portMaskMap.keySet()) {
+                String rangeflowId = flowId + port + "_" + portMaskMap.get(port) + "_";
+                rangeflowId = rangeflowId + "_Permit";
+                MatchUtils.addLayer4MatchWithMask(matchBuilder, MatchUtils.UDP_SHORT,
+                                                  0, port, portMaskMap.get(port));
+                syncFlow(rangeflowId, nodeBuilder, matchBuilder, protoPortMatchPriority, write, false, securityServicesManager.isConntrackEnabled());
+            }
         } else {
-            removeFlow(flowBuilder, nodeBuilder);
+            flowId = flowId + "_Permit";
+            syncFlow(flowId, nodeBuilder, matchBuilder, protoPortMatchPriority, write, false, securityServicesManager.isConntrackEnabled());
         }
     }
 
@@ -601,19 +606,15 @@ public class EgressAclService extends AbstractServiceInstance implements EgressA
      *
      * @param dpidLong the dpid
      * @param write whether to write or delete the flow
-     * @param protoPortMatchPriority the priority
+     * @param priority the priority
      */
     private void egressAclDhcpAllowClientTrafficFromVm(Long dpidLong,
-                                                       boolean write, Integer protoPortMatchPriority) {
-
-        String nodeName = Constants.OPENFLOW_NODE_PREFIX + dpidLong;
+                                                       boolean write, Integer priority) {
+        NodeBuilder nodeBuilder = FlowUtils.createNodeBuilder(dpidLong);
+        String flowName = "Egress_DHCP_Client"  + "_Permit_";
         MatchBuilder matchBuilder = new MatchBuilder();
-        NodeBuilder nodeBuilder = createNodeBuilder(nodeName);
-
-        MatchUtils.createDhcpMatch(matchBuilder, DHCP_DESTINATION_PORT, DHCP_SOURCE_PORT).build();
-        LOG.debug("egressAclDHCPAllowClientTrafficFromVm: MatchBuilder contains: {}", matchBuilder);
-        String flowId = "Egress_DHCP_Client"  + "_Permit_";
-        syncFlow(flowId, nodeBuilder, matchBuilder, protoPortMatchPriority, write, false);
+        MatchUtils.createDhcpMatch(matchBuilder, DHCP_DESTINATION_PORT, DHCP_SOURCE_PORT);
+        syncFlow(flowName, nodeBuilder, matchBuilder, priority, write, false, false);
     }
 
     /**
@@ -622,21 +623,17 @@ public class EgressAclService extends AbstractServiceInstance implements EgressA
      * @param dpidLong the dpid
      * @param localPort the local port
      * @param write is write or delete
-     * @param protoPortMatchPriority  the priority
+     * @param priority  the priority
      */
     private void egressAclDhcpDropServerTrafficfromVm(Long dpidLong, long localPort,
-                                                      boolean write, Integer protoPortMatchPriority) {
+                                                      boolean write, Integer priority) {
 
+        NodeBuilder nodeBuilder = FlowUtils.createNodeBuilder(dpidLong);
+        String flowName = "Egress_DHCP_Server" + "_" + localPort + "_DROP_";
         MatchBuilder matchBuilder = new MatchBuilder();
-        //FlowBuilder flowBuilder = new FlowBuilder();
         MatchUtils.createInPortMatch(matchBuilder, dpidLong, localPort);
-        MatchUtils.createDhcpMatch(matchBuilder, DHCP_SOURCE_PORT, DHCP_DESTINATION_PORT).build();
-        LOG.debug("egressAclDHCPDropServerTrafficfromVM: MatchBuilder contains: {}", matchBuilder);
-        String flowId = "Egress_DHCP_Server" + "_" + localPort + "_DROP_";
-        String nodeName = Constants.OPENFLOW_NODE_PREFIX + dpidLong;
-        NodeBuilder nodeBuilder = createNodeBuilder(nodeName);
-        syncFlow(flowId, nodeBuilder, matchBuilder, protoPortMatchPriority, write, true);
-
+        MatchUtils.createDhcpMatch(matchBuilder, DHCP_SOURCE_PORT, DHCP_DESTINATION_PORT);
+        syncFlow(flowName, nodeBuilder, matchBuilder, priority, write, true, false);
     }
 
     /**
@@ -646,53 +643,48 @@ public class EgressAclService extends AbstractServiceInstance implements EgressA
      * @param localPort the local port
      * @param srcIp the vm ip address
      * @param attachedMac the vm mac address
-     * @param protoPortMatchPriority  the priority
+     * @param priority  the priority
      * @param write is write or delete
      */
     private void egressAclAllowTrafficFromVmIpMacPair(Long dpidLong, long localPort,
                                                       String attachedMac, String srcIp,
-                                                      Integer protoPortMatchPriority, boolean write) {
+                                                      Integer priority, boolean write) {
+        NodeBuilder nodeBuilder = FlowUtils.createNodeBuilder(dpidLong);
+        String flowName = "Egress_Allow_VM_IP_MAC" + "_" + localPort + attachedMac + "_Permit_";
         MatchBuilder matchBuilder = new MatchBuilder();
         MatchUtils.createSrcL3Ipv4MatchWithMac(matchBuilder, new Ipv4Prefix(srcIp),new MacAddress(attachedMac));
         MatchUtils.createInPortMatch(matchBuilder, dpidLong, localPort);
         LOG.debug("egressAclAllowTrafficFromVmIpMacPair: MatchBuilder contains: {}", matchBuilder);
-        String flowId = "Egress_Allow_VM_IP_MAC" + "_" + localPort + attachedMac + "_Permit_";
-        String nodeName = Constants.OPENFLOW_NODE_PREFIX + dpidLong;
-        NodeBuilder nodeBuilder = createNodeBuilder(nodeName);
-        syncFlow(flowId, nodeBuilder, matchBuilder, protoPortMatchPriority, write, false);
-
+        syncFlow(flowName, nodeBuilder, matchBuilder, priority, write, false, false);
     }
 
     /**
      * Add or remove flow to the node.
      *
-     * @param flowId the the flow id
+     * @param flowName the the flow id
      * @param nodeBuilder the node builder
      * @param matchBuilder the matchbuilder
-     * @param protoPortMatchPriority the protocol priority
+     * @param priority the protocol priority
      * @param write whether it is a write
      * @param drop whether it is a drop or forward
+     * @param isCtCommit commit the connection or CT to track
      */
-    private void syncFlow(String flowId, NodeBuilder nodeBuilder,
-                          MatchBuilder matchBuilder,Integer protoPortMatchPriority,
-                          boolean write,boolean drop) {
+    private void syncFlow(String flowName, NodeBuilder nodeBuilder,
+                          MatchBuilder matchBuilder, Integer priority,
+                          boolean write, boolean drop, boolean isCtCommit) {
+        MatchBuilder matchBuilder1 = matchBuilder;
+        if (isCtCommit) {
+            matchBuilder1 = MatchUtils.addCtState(matchBuilder1,0x81, 0x81);
+        }
         FlowBuilder flowBuilder = new FlowBuilder();
-        flowBuilder.setMatch(matchBuilder.build());
-        flowBuilder.setId(new FlowId(flowId));
-        FlowKey key = new FlowKey(new FlowId(flowId));
-        flowBuilder.setStrict(false);
-        flowBuilder.setPriority(protoPortMatchPriority);
-        flowBuilder.setBarrier(true);
-        flowBuilder.setTableId(this.getTable());
-        flowBuilder.setKey(key);
-        flowBuilder.setFlowName(flowId);
-        flowBuilder.setHardTimeout(0);
-        flowBuilder.setIdleTimeout(0);
+        flowBuilder.setMatch(matchBuilder1.build());
+        FlowUtils.initFlowBuilder(flowBuilder, flowName, getTable()).setPriority(priority);
 
         if (write) {
-            // Instantiate the Builders for the OF Actions and Instructions
-
             InstructionBuilder ib = this.getMutablePipelineInstructionBuilder();
+            InstructionBuilder ib1 = new InstructionBuilder();
+            ActionBuilder ab = new ActionBuilder();
+            ApplyActionsBuilder aab = new ApplyActionsBuilder();
             if (drop) {
                 InstructionUtils.createDropInstructions(ib);
             }
@@ -701,17 +693,27 @@ public class EgressAclService extends AbstractServiceInstance implements EgressA
             InstructionsBuilder isb = new InstructionsBuilder();
             List<Instruction> instructionsList = Lists.newArrayList();
             instructionsList.add(ib.build());
+            if (isCtCommit) {
+                LOG.info("Adding Conntarck rule, flowname = " + flowName);
+                ab.setAction(ActionUtils.nxConntrackAction(1, 0L, 0, (short)0xff));
+                ab.setOrder(0);
+                ab.setKey(new ActionKey(0));
+                List<Action> actionList = Lists.newArrayList();
+                actionList.add(ab.build());
+                aab.setAction(actionList);
+                ib1.setOrder(1);
+                ib1.setKey(new InstructionKey(1));
+                ib1.setInstruction(new ApplyActionsCaseBuilder().setApplyActions(aab.build()).build());
+                instructionsList.add(ib1.build());
+            }
             isb.setInstruction(instructionsList);
             flowBuilder.setInstructions(isb.build());
             writeFlow(flowBuilder, nodeBuilder);
         } else {
             removeFlow(flowBuilder, nodeBuilder);
         }
-
     }
 
-
-
     @Override
     public void setDependencies(BundleContext bundleContext, ServiceReference serviceReference) {
         super.setDependencies(bundleContext.getServiceReference(EgressAclProvider.class.getName()), this);