2 * Copyright (c) 2016 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.openflowplugin.openflow.md.core.sal.convertor.match;
11 import java.util.Iterator;
12 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Dscp;
13 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.Ipv6ExthdrFlags;
14 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.IpDscp;
15 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.OpenflowBasicClass;
16 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.VlanPcp;
17 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.match.entries.grouping.MatchEntry;
18 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.match.entries.grouping.MatchEntryBuilder;
19 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.match.entry.value.grouping.match.entry.value.IpDscpCaseBuilder;
20 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.match.entry.value.grouping.match.entry.value.VlanPcpCaseBuilder;
21 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.match.entry.value.grouping.match.entry.value.ip.dscp._case.IpDscpBuilder;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.match.entry.value.grouping.match.entry.value.vlan.pcp._case.VlanPcpBuilder;
27 public abstract class MatchConvertorUtil {
28 // Pre-calculated masks for the 33 possible values. Do not give them out, but clone() them as they may
29 // end up being leaked and vulnerable.
30 private static final byte[][] IPV4_MASKS;
33 final byte[][] tmp = new byte[33][];
34 for (int i = 0; i <= 32; ++i) {
35 final int mask = 0xffffffff << (32 - i);
36 tmp[i] = new byte[]{(byte) (mask >>> 24), (byte) (mask >>> 16), (byte) (mask >>> 8), (byte) mask};
43 * Ipv 6 exthdr flags to int integer.
45 * @param pField ipv6 external header flag
46 * @return integer containing lower 9 bits filled with corresponding flags
48 public static Integer ipv6ExthdrFlagsToInt(final Ipv6ExthdrFlags pField) {
50 bitmap |= pField.isNonext() ? 1 : 0;
51 bitmap |= pField.isEsp() ? (1 << 1) : 0;
52 bitmap |= pField.isAuth() ? (1 << 2) : 0;
53 bitmap |= pField.isDest() ? (1 << 3) : 0;
54 bitmap |= pField.isFrag() ? (1 << 4) : 0;
55 bitmap |= pField.isRouter() ? (1 << 5) : 0;
56 bitmap |= pField.isHop() ? (1 << 6) : 0;
57 bitmap |= pField.isUnrep() ? (1 << 7) : 0;
58 bitmap |= pField.isUnseq() ? (1 << 8) : 0;
63 * Extract ipv 4 mask byte [ ].
65 * @param addressParts the address parts
66 * @return the byte [ ]
68 public static byte[] extractIpv4Mask(final Iterator<String> addressParts) {
70 if (addressParts.hasNext()) {
71 int potentionalPrefix = Integer.parseInt(addressParts.next());
72 prefix = potentionalPrefix < 32 ? potentionalPrefix : 0;
78 // clone() is necessary to protect our constants
79 return IPV4_MASKS[prefix].clone();
86 * To of ip dscp match entry.
88 * @param ipDscp the ip dscp
89 * @return the match entry
91 public static MatchEntry toOfIpDscp(final Dscp ipDscp) {
92 MatchEntryBuilder matchEntryBuilder = new MatchEntryBuilder();
93 matchEntryBuilder.setOxmClass(OpenflowBasicClass.class);
94 matchEntryBuilder.setHasMask(false);
95 matchEntryBuilder.setOxmMatchField(IpDscp.class);
97 IpDscpCaseBuilder ipDscpCaseBuilder = new IpDscpCaseBuilder();
98 IpDscpBuilder ipDscpBuilder = new IpDscpBuilder();
99 ipDscpBuilder.setDscp(ipDscp);
100 ipDscpCaseBuilder.setIpDscp(ipDscpBuilder.build());
101 matchEntryBuilder.setMatchEntryValue(ipDscpCaseBuilder.build());
102 return matchEntryBuilder.build();
106 * To of vlan pcp match entry.
108 * @param vlanPcp the vlan pcp
109 * @return the match entry
111 public static MatchEntry toOfVlanPcp(
112 final org.opendaylight.yang.gen.v1.urn.opendaylight.l2.types.rev130827.VlanPcp vlanPcp) {
113 MatchEntryBuilder matchEntryBuilder = new MatchEntryBuilder();
114 matchEntryBuilder.setOxmClass(OpenflowBasicClass.class);
115 matchEntryBuilder.setHasMask(false);
116 matchEntryBuilder.setOxmMatchField(VlanPcp.class);
117 VlanPcpCaseBuilder vlanPcpCaseBuilder = new VlanPcpCaseBuilder();
118 VlanPcpBuilder vlanPcpBuilder = new VlanPcpBuilder();
119 vlanPcpBuilder.setVlanPcp(vlanPcp.getValue());
120 vlanPcpCaseBuilder.setVlanPcp(vlanPcpBuilder.build());
121 matchEntryBuilder.setMatchEntryValue(vlanPcpCaseBuilder.build());
122 return matchEntryBuilder.build();