2 * Copyright (c) 2013 Pantheon Technologies s.r.o. 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.openflowjava.protocol.impl.util;
11 import java.util.HashMap;
14 import io.netty.buffer.ByteBuf;
16 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.FlowWildcardsV10;
17 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.match.v10.grouping.MatchV10;
20 * Serializes ofp_match (OpenFlow v1.0) structure
21 * @author michal.polkorab
23 public abstract class OF10MatchSerializer {
25 private static final byte PADDING_IN_MATCH = 1;
26 private static final byte PADDING_IN_MATCH_2 = 2;
27 private static final byte NW_SRC_SHIFT = 8;
28 private static final byte NW_DST_SHIFT = 14;
29 private static final int ALL = ((1 << 22) - 1);
32 * Encodes ofp_match (OpenFlow v1.0)
33 * @param out output ByteBuf that match will be written into
34 * @param match match to be encoded
36 public static void encodeMatchV10(ByteBuf out, MatchV10 match) {
37 out.writeInt(encodeWildcards(match.getWildcards(), match.getNwSrcMask(), match.getNwDstMask()));
38 out.writeShort(match.getInPort());
39 out.writeBytes(ByteBufUtils.macAddressToBytes(match.getDlSrc().getValue()));
40 out.writeBytes(ByteBufUtils.macAddressToBytes(match.getDlDst().getValue()));
41 out.writeShort(match.getDlVlan());
42 out.writeByte(match.getDlVlanPcp());
43 ByteBufUtils.padBuffer(PADDING_IN_MATCH, out);
44 out.writeShort(match.getDlType());
45 out.writeByte(match.getNwTos());
46 out.writeByte(match.getNwProto());
47 ByteBufUtils.padBuffer(PADDING_IN_MATCH_2, out);
48 String[] srcGroups = match.getNwSrc().getValue().split("\\.");
49 for (int i = 0; i < srcGroups.length; i++) {
50 out.writeByte(Integer.parseInt(srcGroups[i]));
52 String[] dstGroups = match.getNwDst().getValue().split("\\.");
53 for (int i = 0; i < dstGroups.length; i++) {
54 out.writeByte(Integer.parseInt(dstGroups[i]));
56 out.writeShort(match.getTpSrc());
57 out.writeShort(match.getTpDst());
60 private static int encodeWildcards(FlowWildcardsV10 wildcards, short srcMask, short dstMask) {
62 if (wildcards.isALL()) {
65 Map<Integer, Boolean> wildcardsMap = new HashMap<>();
66 wildcardsMap.put(0, wildcards.isINPORT());
67 wildcardsMap.put(1, wildcards.isDLVLAN());
68 wildcardsMap.put(2, wildcards.isDLSRC());
69 wildcardsMap.put(3, wildcards.isDLDST());
70 wildcardsMap.put(4, wildcards.isDLTYPE());
71 wildcardsMap.put(5, wildcards.isNWPROTO());
72 wildcardsMap.put(6, wildcards.isTPSRC());
73 wildcardsMap.put(7, wildcards.isTPDST());
74 wildcardsMap.put(20, wildcards.isDLVLANPCP());
75 wildcardsMap.put(21, wildcards.isNWTOS());
76 bitmask = ByteBufUtils.fillBitMaskFromMap(wildcardsMap);
77 bitmask |= ((32 - srcMask) << NW_SRC_SHIFT);
78 bitmask |= ((32 - dstMask) << NW_DST_SHIFT);