vpnservice/neutronvpn/neutronvpn-impl/src/main/java/org/opendaylight/netvirt/neutronvpn/NeutronSecurityRuleListener.java

   1 /*
   2  * Copyright (c) 2016 Ericsson India Global Services Pvt Ltd. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.netvirt.neutronvpn;
   9
  10 import com.google.common.collect.ImmutableBiMap;
  11 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  12 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  13 import org.opendaylight.genius.datastoreutils.AsyncDataTreeChangeListenerBase;
  14 import org.opendaylight.genius.mdsalutil.MDSALUtil;
  15 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev160218.AccessLists;
  16 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev160218.access.lists.Acl;
  17 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev160218.access.lists.AclKey;
  18 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev160218.access.lists.acl.AccessListEntries;
  19 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev160218.access.lists.acl.access.list.entries.Ace;
  20 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev160218.access.lists.acl.access.list.entries.AceBuilder;
  21 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev160218.access.lists.acl.access.list.entries.AceKey;
  22 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev160218.access.lists.acl.access.list.entries.ace.ActionsBuilder;
  23 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev160218.access.lists.acl.access.list.entries.ace.MatchesBuilder;
  24 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev160218.access.lists.acl.access.list.entries.ace.actions.packet.handling.PermitBuilder;
  25 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev160218.access.lists.acl.access.list.entries.ace.matches.ace.type.AceIpBuilder;
  26 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev160218.access.lists.acl.access.list.entries.ace.matches.ace.type.ace.ip.ace.ip.version.AceIpv4Builder;
  27 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev160218.access.lists.acl.access.list.entries.ace.matches.ace.type.ace.ip.ace.ip.version.AceIpv6Builder;
  28 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Prefix;
  29 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv6Prefix;
  30 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.PortNumber;
  31 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.packet.fields.rev160218.acl.transport.header.fields.DestinationPortRangeBuilder;
  32 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.packet.fields.rev160218.acl.transport.header.fields.SourcePortRangeBuilder;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.aclservice.rev160608.SecurityRuleAttr;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.aclservice.rev160608.SecurityRuleAttrBuilder;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.constants.rev150712.DirectionBase;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.constants.rev150712.DirectionEgress;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.constants.rev150712.DirectionIngress;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.constants.rev150712.ProtocolBase;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.constants.rev150712.ProtocolIcmp;
  40 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.constants.rev150712.ProtocolIcmpV6;
  41 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.constants.rev150712.ProtocolTcp;
  42 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.constants.rev150712.ProtocolUdp;
  43 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.rev150712.Neutron;
  44 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.secgroups.rev150712.SecurityRuleAttributes;
  45 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.secgroups.rev150712.security.rules.attributes.SecurityRules;
  46 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.secgroups.rev150712.security.rules.attributes.security.rules.SecurityRule;
  47 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  48 import org.slf4j.Logger;
  49 import org.slf4j.LoggerFactory;
  50
  51 public class NeutronSecurityRuleListener
  52         extends AsyncDataTreeChangeListenerBase<SecurityRule, NeutronSecurityRuleListener> {
  53     private static final Logger LOG = LoggerFactory.getLogger(NeutronSecurityRuleListener.class);
  54     private final DataBroker dataBroker;
  55     private static final ImmutableBiMap<Class<? extends DirectionBase>, Class<? extends org.opendaylight.yang.gen.
  56             v1.urn.opendaylight.netvirt.aclservice.rev160608.DirectionBase>> DIRECTION_MAP = ImmutableBiMap.of(
  57             DirectionEgress.class, NeutronSecurityRuleConstants.DIRECTION_EGRESS,
  58             DirectionIngress.class, NeutronSecurityRuleConstants.DIRECTION_INGRESS);
  59     private static final ImmutableBiMap<Class<? extends ProtocolBase>, Short> PROTOCOL_MAP = ImmutableBiMap.of(
  60             ProtocolIcmp.class, NeutronSecurityRuleConstants.PROTOCOL_ICMP,
  61             ProtocolTcp.class, NeutronSecurityRuleConstants.PROTOCOL_TCP,
  62             ProtocolUdp.class, NeutronSecurityRuleConstants.PROTOCOL_UDP,
  63             ProtocolIcmpV6.class, NeutronSecurityRuleConstants.PROTOCOL_ICMPV6);
  64
  65     public NeutronSecurityRuleListener(final DataBroker dataBroker) {
  66         super(SecurityRule.class, NeutronSecurityRuleListener.class);
  67         this.dataBroker = dataBroker;
  68     }
  69
  70     public void start() {
  71         LOG.info("{} start", getClass().getSimpleName());
  72         registerListener(LogicalDatastoreType.CONFIGURATION, dataBroker);
  73     }
  74
  75     @Override
  76     protected InstanceIdentifier<SecurityRule> getWildCardPath() {
  77         return InstanceIdentifier.create(Neutron.class).child(SecurityRules.class).child(SecurityRule.class);
  78     }
  79
  80     @Override
  81     protected void add(InstanceIdentifier<SecurityRule> instanceIdentifier, SecurityRule securityRule) {
  82         if (LOG.isTraceEnabled()) {
  83             LOG.trace("added securityRule: {}", securityRule);
  84         }
  85         try {
  86             Ace ace = toAceBuilder(securityRule).build();
  87             InstanceIdentifier<Ace> identifier = getAceInstanceIdentifier(securityRule);
  88             MDSALUtil.syncWrite(dataBroker, LogicalDatastoreType.CONFIGURATION, identifier, ace);
  89         } catch (Exception ex) {
  90             LOG.error("Exception occured while adding acl for security rule: ", ex);
  91         }
  92     }
  93
  94     private InstanceIdentifier<Ace> getAceInstanceIdentifier(SecurityRule securityRule) {
  95         return InstanceIdentifier
  96                 .builder(AccessLists.class)
  97                 .child(Acl.class,
  98                         new AclKey(securityRule.getSecurityGroupId().getValue(), NeutronSecurityRuleConstants.ACLTYPE))
  99                 .child(AccessListEntries.class)
 100                 .child(Ace.class,
 101                         new AceKey(securityRule.getUuid().getValue()))
 102                 .build();
 103     }
 104
 105     private AceBuilder toAceBuilder(SecurityRule securityRule) {
 106         AceIpBuilder aceIpBuilder = new AceIpBuilder();
 107         SecurityRuleAttrBuilder securityRuleAttrBuilder = new SecurityRuleAttrBuilder();
 108         SourcePortRangeBuilder sourcePortRangeBuilder = new SourcePortRangeBuilder();
 109         DestinationPortRangeBuilder destinationPortRangeBuilder = new DestinationPortRangeBuilder();
 110         boolean isDirectionIngress = false;
 111         if (securityRule.getDirection() != null) {
 112             securityRuleAttrBuilder.setDirection(DIRECTION_MAP.get(securityRule.getDirection()));
 113             isDirectionIngress = securityRule.getDirection().equals(DirectionIngress.class);
 114         }
 115         if (securityRule.getPortRangeMax() != null) {
 116             destinationPortRangeBuilder.setUpperPort(new PortNumber(securityRule.getPortRangeMax()));
 117
 118         }
 119         if (securityRule.getPortRangeMin() != null) {
 120             destinationPortRangeBuilder.setLowerPort(new PortNumber(securityRule.getPortRangeMin()));
 121             // set destination port range if lower port is specified as it is mandatory parameter in acl model
 122             aceIpBuilder.setDestinationPortRange(destinationPortRangeBuilder.build());
 123         }
 124         aceIpBuilder = handleRemoteIpPrefix(securityRule, aceIpBuilder, isDirectionIngress);
 125         if (securityRule.getRemoteGroupId() != null) {
 126             securityRuleAttrBuilder.setRemoteGroupId(securityRule.getRemoteGroupId());
 127         }
 128         if (securityRule.getProtocol() != null) {
 129             SecurityRuleAttributes.Protocol protocol = securityRule.getProtocol();
 130             if (protocol.getUint8() != null) {
 131                 // uint8
 132                 aceIpBuilder.setProtocol(protocol.getUint8());
 133             } else {
 134                 // symbolic protocol name
 135                 aceIpBuilder.setProtocol(PROTOCOL_MAP.get(protocol.getIdentityref()));
 136             }
 137         }
 138
 139         MatchesBuilder matchesBuilder = new MatchesBuilder();
 140         matchesBuilder.setAceType(aceIpBuilder.build());
 141         // set acl action as permit for the security rule
 142         ActionsBuilder actionsBuilder = new ActionsBuilder();
 143         actionsBuilder.setPacketHandling(new PermitBuilder().setPermit(true).build());
 144
 145         AceBuilder aceBuilder = new AceBuilder();
 146         aceBuilder.setKey(new AceKey(securityRule.getUuid().getValue()));
 147         aceBuilder.setRuleName(securityRule.getUuid().getValue());
 148         aceBuilder.setMatches(matchesBuilder.build());
 149         aceBuilder.setActions(actionsBuilder.build());
 150         aceBuilder.addAugmentation(SecurityRuleAttr.class, securityRuleAttrBuilder.build());
 151         return aceBuilder;
 152     }
 153
 154     private AceIpBuilder handleEtherType(SecurityRule securityRule, AceIpBuilder aceIpBuilder) {
 155         if (NeutronSecurityRuleConstants.ETHERTYPE_IPV4.equals(securityRule.getEthertype())) {
 156             AceIpv4Builder aceIpv4Builder = new AceIpv4Builder();
 157             aceIpv4Builder.setSourceIpv4Network(new Ipv4Prefix(
 158                 NeutronSecurityRuleConstants.IPV4_ALL_NETWORK));
 159             aceIpv4Builder.setDestinationIpv4Network(new Ipv4Prefix(
 160                 NeutronSecurityRuleConstants.IPV4_ALL_NETWORK));
 161             aceIpBuilder.setAceIpVersion(aceIpv4Builder.build());
 162         } else {
 163             AceIpv6Builder aceIpv6Builder = new AceIpv6Builder();
 164             aceIpv6Builder.setSourceIpv6Network(new Ipv6Prefix(
 165                 NeutronSecurityRuleConstants.IPV6_ALL_NETWORK));
 166             aceIpv6Builder.setDestinationIpv6Network(new Ipv6Prefix(
 167                 NeutronSecurityRuleConstants.IPV6_ALL_NETWORK));
 168             aceIpBuilder.setAceIpVersion(aceIpv6Builder.build());
 169
 170         }
 171         return aceIpBuilder;
 172     }
 173
 174     private AceIpBuilder handleRemoteIpPrefix(SecurityRule securityRule, AceIpBuilder aceIpBuilder,
 175                                               boolean isDirectionIngress) {
 176         if (securityRule.getRemoteIpPrefix() != null) {
 177             if (securityRule.getRemoteIpPrefix().getIpv4Prefix() != null) {
 178                 AceIpv4Builder aceIpv4Builder = new AceIpv4Builder();
 179                 if (isDirectionIngress) {
 180                     aceIpv4Builder.setSourceIpv4Network(new Ipv4Prefix(securityRule
 181                         .getRemoteIpPrefix().getIpv4Prefix().getValue()));
 182                 } else {
 183                     aceIpv4Builder.setDestinationIpv4Network(new Ipv4Prefix(securityRule
 184                         .getRemoteIpPrefix().getIpv4Prefix().getValue()));
 185                 }
 186                 aceIpBuilder.setAceIpVersion(aceIpv4Builder.build());
 187             } else {
 188                 AceIpv6Builder aceIpv6Builder = new AceIpv6Builder();
 189                 if (isDirectionIngress) {
 190                     aceIpv6Builder.setSourceIpv6Network(new Ipv6Prefix(
 191                         securityRule.getRemoteIpPrefix().getIpv6Prefix().getValue()));
 192                 } else {
 193                     aceIpv6Builder.setDestinationIpv6Network(new Ipv6Prefix(
 194                         securityRule.getRemoteIpPrefix().getIpv6Prefix().getValue()));
 195                 }
 196                 aceIpBuilder.setAceIpVersion(aceIpv6Builder.build());
 197             }
 198         } else {
 199             if (securityRule.getEthertype() != null) {
 200                 handleEtherType( securityRule, aceIpBuilder);
 201             }
 202         }
 203
 204         return aceIpBuilder;
 205     }
 206
 207     @Override
 208     protected void remove(InstanceIdentifier<SecurityRule> instanceIdentifier, SecurityRule securityRule) {
 209         if (LOG.isTraceEnabled()) {
 210             LOG.trace("removed securityRule: {}", securityRule);
 211         }
 212         try {
 213             InstanceIdentifier<Ace> identifier = getAceInstanceIdentifier(securityRule);
 214             MDSALUtil.syncDelete(dataBroker, LogicalDatastoreType.CONFIGURATION, identifier);
 215         } catch (Exception ex) {
 216             LOG.error("Exception occured while removing acl for security rule: ", ex);
 217         }
 218     }
 219
 220     @Override
 221     protected void update(InstanceIdentifier<SecurityRule> instanceIdentifier, SecurityRule oldSecurityRule, SecurityRule updatedSecurityRule) {
 222         // security rule updation is not supported from openstack, so no need to handle update.
 223         LOG.trace("updates on security rules not supported.");
 224     }
 225
 226     @Override
 227     protected NeutronSecurityRuleListener getDataTreeChangeListener() {
 228         return this;
 229     }
 230 }