2 * Copyright (c) 2014 Cisco Systems, Inc. and others. All rights reserved.
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
9 package org.opendaylight.groupbasedpolicy.renderer.ofoverlay.flow;
13 import org.opendaylight.groupbasedpolicy.renderer.ofoverlay.OfContext;
14 import org.opendaylight.groupbasedpolicy.renderer.ofoverlay.PolicyManager.FlowMap;
15 import org.opendaylight.groupbasedpolicy.resolver.EgKey;
16 import org.opendaylight.groupbasedpolicy.resolver.PolicyInfo;
17 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.Ipv4Prefix;
18 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.Ipv6Prefix;
19 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowId;
20 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.table.Flow;
21 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.table.FlowBuilder;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.flow.MatchBuilder;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.endpoint.fields.L3Address;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.endpoints.Endpoint;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.ofoverlay.rev140528.EndpointLocation.LocationType;
26 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.ofoverlay.rev140528.OfOverlayContext;
27 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeConnectorId;
28 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeId;
29 import org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.match.Layer3Match;
30 import org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.match.layer._3.match.ArpMatchBuilder;
31 import org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.match.layer._3.match.Ipv4MatchBuilder;
32 import org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.match.layer._3.match.Ipv6MatchBuilder;
33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.overlay.rev150105.TunnelTypeVxlan;
34 import org.slf4j.Logger;
35 import org.slf4j.LoggerFactory;
38 * Manage the table that enforces port security
41 public class PortSecurity extends FlowTable {
42 protected static final Logger LOG =
43 LoggerFactory.getLogger(PortSecurity.class);
45 public static final short TABLE_ID = 0;
47 public PortSecurity(OfContext ctx) {
52 public short getTableId() {
57 public void sync(NodeId nodeId, PolicyInfo policyInfo, FlowMap flowMap) {
59 // Allow traffic from tunnel and external ports
60 NodeConnectorId tunnelIf = ctx.getSwitchManager().getTunnelPort(nodeId, TunnelTypeVxlan.class);
62 flowMap.writeFlow(nodeId, TABLE_ID, allowFromPort(tunnelIf));
63 Set<NodeConnectorId> external =
64 ctx.getSwitchManager().getExternalPorts(nodeId);
65 for (NodeConnectorId extIf : external) {
66 flowMap.writeFlow(nodeId, TABLE_ID, allowFromPort(extIf));
70 flowMap.writeFlow(nodeId, TABLE_ID, dropFlow(Integer.valueOf(1), null));
72 // Drop IP traffic that doesn't match a source IP rule
73 flowMap.writeFlow(nodeId, TABLE_ID, dropFlow(Integer.valueOf(110), FlowUtils.ARP));
74 flowMap.writeFlow(nodeId, TABLE_ID, dropFlow(Integer.valueOf(111), FlowUtils.IPv4));
75 flowMap.writeFlow(nodeId, TABLE_ID, dropFlow(Integer.valueOf(112), FlowUtils.IPv6));
77 for (EgKey sepg : ctx.getEndpointManager().getGroupsForNode(nodeId)) {
78 for (Endpoint ep : ctx.getEndpointManager().getEndpointsForNode(nodeId, sepg)) {
79 OfOverlayContext ofc = ep.getAugmentation(OfOverlayContext.class);
81 if (ofc != null && ofc.getNodeConnectorId() != null &&
82 (ofc.getLocationType() == null ||
83 LocationType.Internal.equals(ofc.getLocationType()))) {
84 // Allow layer 3 traffic (ARP and IP) with the correct
85 // source IP, MAC, and source port
86 l3flow(flowMap, nodeId, ep, ofc, 120, false);
87 l3flow(flowMap, nodeId, ep, ofc, 121, true);
88 flowMap.writeFlow(nodeId, TABLE_ID, l3DhcpDoraFlow(ep, ofc, 115));
90 // Allow layer 2 traffic with the correct source MAC and
91 // source port (note lower priority than drop IP rules)
92 flowMap.writeFlow(nodeId, TABLE_ID, l2flow(ep, ofc, 100));
98 private Flow allowFromPort(
99 NodeConnectorId port) {
100 FlowId flowid = new FlowId(new StringBuilder()
102 .append(port.getValue())
104 FlowBuilder flowb = base()
106 .setPriority(Integer.valueOf(200))
107 .setMatch(new MatchBuilder()
110 .setInstructions(FlowUtils.gotoTableInstructions((short) (getTableId() + 1)));
111 return flowb.build();
115 private Flow l2flow(Endpoint ep, OfOverlayContext ofc, Integer priority) {
116 FlowId flowid = new FlowId(new StringBuilder()
117 .append(ofc.getNodeConnectorId().getValue())
119 .append(ep.getMacAddress().getValue())
121 FlowBuilder flowb = base()
122 .setPriority(priority)
124 .setMatch(new MatchBuilder()
125 .setEthernetMatch(FlowUtils.ethernetMatch(ep.getMacAddress(),
127 .setInPort(ofc.getNodeConnectorId())
129 .setInstructions(FlowUtils.gotoTableInstructions((short) (TABLE_ID + 1)));
131 return flowb.build();
134 private Flow l3DhcpDoraFlow(Endpoint ep, OfOverlayContext ofc, Integer priority) {
136 //TODO: Handle IPv6 DORA
137 Long etherType = FlowUtils.IPv4;
138 // DHCP DORA destination is broadcast
139 String ikey = "255.255.255.255/32";
140 Layer3Match m = new Ipv4MatchBuilder().setIpv4Destination(new Ipv4Prefix(ikey)).build();
142 FlowId flowid = new FlowId(new StringBuilder()
143 .append(ofc.getNodeConnectorId().getValue())
145 .append(ep.getMacAddress().getValue())
150 .setPriority(priority)
152 .setMatch(new MatchBuilder()
153 .setEthernetMatch(FlowUtils.ethernetMatch(ep.getMacAddress(),
157 .setInPort(ofc.getNodeConnectorId())
159 .setInstructions(FlowUtils.gotoTableInstructions((short) (TABLE_ID + 1)))
165 private void l3flow(FlowMap flowMap, NodeId nodeId,
166 Endpoint ep, OfOverlayContext ofc,
167 Integer priority, boolean arp) {
168 if (ep.getL3Address() == null)
170 for (L3Address l3 : ep.getL3Address()) {
171 if (l3.getIpAddress() == null)
173 Layer3Match m = null;
174 Long etherType = null;
176 if (l3.getIpAddress().getIpv4Address() != null) {
177 ikey = l3.getIpAddress().getIpv4Address().getValue() + "/32";
179 m = new ArpMatchBuilder()
180 .setArpSourceTransportAddress(new Ipv4Prefix(ikey))
182 etherType = FlowUtils.ARP;
184 m = new Ipv4MatchBuilder()
185 .setIpv4Source(new Ipv4Prefix(ikey))
187 etherType = FlowUtils.IPv4;
189 } else if (l3.getIpAddress().getIpv6Address() != null) {
192 ikey = l3.getIpAddress().getIpv6Address().getValue() + "/128";
193 m = new Ipv6MatchBuilder()
194 .setIpv6Source(new Ipv6Prefix(ikey))
196 etherType = FlowUtils.IPv6;
200 FlowId flowid = new FlowId(new StringBuilder()
201 .append(ofc.getNodeConnectorId().getValue())
203 .append(ep.getMacAddress().getValue())
210 .setPriority(priority)
212 .setMatch(new MatchBuilder()
213 .setEthernetMatch(FlowUtils.ethernetMatch(ep.getMacAddress(),
217 .setInPort(ofc.getNodeConnectorId())
219 .setInstructions(FlowUtils.gotoTableInstructions((short) (TABLE_ID + 1)))
222 flowMap.writeFlow(nodeId, TABLE_ID,flow);