diff options
Diffstat (limited to 'framework/src/onos/utils/misc/src/main/java/org/onlab/packet/pim/PIMJoinPrune.java')
-rw-r--r-- | framework/src/onos/utils/misc/src/main/java/org/onlab/packet/pim/PIMJoinPrune.java | 271 |
1 files changed, 0 insertions, 271 deletions
diff --git a/framework/src/onos/utils/misc/src/main/java/org/onlab/packet/pim/PIMJoinPrune.java b/framework/src/onos/utils/misc/src/main/java/org/onlab/packet/pim/PIMJoinPrune.java deleted file mode 100644 index 9653115b..00000000 --- a/framework/src/onos/utils/misc/src/main/java/org/onlab/packet/pim/PIMJoinPrune.java +++ /dev/null @@ -1,271 +0,0 @@ -/* - * Copyright 2015 Open Networking Laboratory - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ -package org.onlab.packet.pim; - -import org.onlab.packet.BasePacket; -import org.onlab.packet.Deserializer; -import org.onlab.packet.IPacket; -import org.onlab.packet.IpPrefix; - -import java.nio.ByteBuffer; -import java.util.HashMap; - -import static org.onlab.packet.PacketUtils.checkInput; - -public class PIMJoinPrune extends BasePacket { - - private PIMAddrUnicast upstreamAddr = new PIMAddrUnicast(); - private short holdTime = (short) 0xffff; - - private class JoinPruneGroup { - protected IpPrefix group; - protected HashMap<IpPrefix, IpPrefix> joins = new HashMap<>(); - protected HashMap<IpPrefix, IpPrefix> prunes = new HashMap<>(); - - public JoinPruneGroup(IpPrefix grp) { - group = grp; - } - } - private HashMap<IpPrefix, JoinPruneGroup> joinPrunes = new HashMap<>(); - - /** - * Get the J/P hold time. - * - * @return specified in seconds. - */ - public short getHoldTime() { - return holdTime; - } - - /** - * Set the J/P holdtime in seconds. - * - * @param holdTime return the holdtime. - */ - public void setHoldTime(short holdTime) { - this.holdTime = holdTime; - } - - /** - * Get the upstreamAddr for this J/P request. - * - * @return the upstream address. - */ - public PIMAddrUnicast getUpstreamAddr() { - return upstreamAddr; - } - - /** - * Set the upstream address of this PIM J/P request. - * - * @param upstr the PIM Upstream unicast address - */ - public void setUpstreamAddr(PIMAddrUnicast upstr) { - this.upstreamAddr = upstr; - } - - /** - * Add the specified s,g to join field. - * - * @param saddr the source address of the route - * @param gaddr the group address of the route - * @param join true for a join, false for a prune. - */ - public void addJoinPrune(String saddr, String gaddr, boolean join) { - IpPrefix gpfx = IpPrefix.valueOf(gaddr); - IpPrefix spfx = IpPrefix.valueOf(saddr); - addJoinPrune(spfx, gpfx, join); - } - - /** - * Add the specified S, G to the join field. - * - * @param spfx the source prefix of the route - * @param gpfx the group prefix of the route - * @param join true for join, false for prune - */ - public void addJoinPrune(IpPrefix spfx, IpPrefix gpfx, boolean join) { - JoinPruneGroup jpg = joinPrunes.get(gpfx); - if (jpg == null) { - jpg = new JoinPruneGroup(gpfx); - joinPrunes.put(gpfx, jpg); - } - - HashMap<IpPrefix, IpPrefix> members = (join) ? jpg.joins : jpg.prunes; - if (members.get(spfx) == null) { - members.put(spfx, spfx); - } - } - - /** - * Add a join given strings represending the source and group addresses. - * - * @param saddr source address - * @param gaddr group address - */ - public void addJoin(String saddr, String gaddr) { - this.addJoinPrune(saddr, gaddr, true); - } - - /** - * Add a prune given strings represending the source and group addresses. - * - * @param saddr source address - * @param gaddr group address - */ - public void addPrune(String saddr, String gaddr) { - this.addJoinPrune(saddr, gaddr, false); - } - - /** - * Sets all payloads parent packet if applicable, then serializes this - * packet and all payloads. - * - * @return a byte[] containing this packet and payloads - */ - @Override - public byte[] serialize() { - - byte[] data = new byte[8096]; // Come up with something better - ByteBuffer bb = ByteBuffer.wrap(data); - - bb.put(upstreamAddr.serialize()); - bb.put((byte) 0); // reserved - - int ngrps = joinPrunes.size(); - bb.put((byte) ngrps); - bb.putShort(this.holdTime); - - // Walk the group list and input all groups - for (JoinPruneGroup jpg : joinPrunes.values()) { - PIMAddrGroup grp = new PIMAddrGroup(jpg.group); - bb.put(grp.serialize()); - - // put the number of joins and prunes - bb.putShort((short) jpg.joins.size()); - bb.putShort((short) jpg.prunes.size()); - - // Set all of the joins - for (IpPrefix spfx : jpg.joins.values()) { - PIMAddrSource src = new PIMAddrSource(spfx); - bb.put(src.serialize()); - } - - // Set all of the prunes - for (IpPrefix spfx : jpg.prunes.values()) { - PIMAddrSource src = new PIMAddrSource(spfx); - bb.put(src.serialize()); - } - } - - int len = bb.position(); - byte[] data2 = new byte[len]; - bb = ByteBuffer.wrap(data2, 0, len); - bb.put(data, 0, len); - return data2; - } - - // TODO: I suppose I really need to implement this? - @Override - public IPacket deserialize(final byte[] data, final int offset, - final int length) { - final ByteBuffer bb = ByteBuffer.wrap(data, offset, length); - return this; - } - - /** - * Return the J/P deserializer function. - * - * @return a function that will deserialize a J/P message. - */ - public static Deserializer<PIMJoinPrune> deserializer() { - return (data, offset, length) -> { - - /* - * Delay buffer checks until we read enough of the packet to know how - * much data we will require. Each encoded address deserializer function - * will ensure there is enough data for that address. - */ - PIMJoinPrune jp = new PIMJoinPrune(); - final ByteBuffer bb = ByteBuffer.wrap(data, offset, length); - - // We must get a PIM encoded unicast address - PIMAddrUnicast upstream = new PIMAddrUnicast(); - upstream.deserialize(bb); - jp.setUpstreamAddr(upstream); - - // Use this boolean to determine the buffer space we need according to address sizes - boolean ipv4 = upstream.getAddr().isIp4(); - - // We need at minimum 4 bytes for reserved(1), ngroups(1) & holdtime(2) - checkInput(bb.array(), bb.position(), bb.limit() - bb.position(), 4); - - // get and skip the reserved byte - bb.get(); - - // Get the number of groups. - int ngroups = bb.get(); - - // Save the holdtime. - jp.setHoldTime(bb.getShort()); - - - for (int i = 0; i < ngroups; i++) { - PIMAddrGroup grp = new PIMAddrGroup(); - - /* - * grp.deserialize will ensure the buffer has enough data to read the group address. - */ - grp.deserialize(bb); - - checkInput(bb.array(), bb.position(), bb.limit() - bb.position(), 4); - int njoins = bb.getShort(); - int nprunes = bb.getShort(); - - /* - * Now we'll verify we have enough buffer to read the next - * group of join and prune addresses for this group. - */ - int required = (njoins + nprunes) * - (ipv4 ? PIMAddrSource.ENC_SOURCE_IPV4_BYTE_LENGTH : PIMAddrSource.ENC_SOURCE_IPV6_BYTE_LENGTH); - checkInput(bb.array(), bb.position(), bb.limit() - bb.position(), required); - - // Now iterate through the joins for this group - for (; njoins > 0; njoins--) { - - PIMAddrSource src = new PIMAddrSource(); - src.deserialize(bb); - - jp.addJoinPrune( - src.getAddr().toIpPrefix(), - grp.getAddr().toIpPrefix(), true); - } - - // Now iterate through the prunes for this group - for (; nprunes > 0; nprunes--) { - - PIMAddrSource src = new PIMAddrSource(); - src.deserialize(bb); - jp.addJoinPrune( - src.getAddr().toIpPrefix(), - grp.getAddr().toIpPrefix(), false); - } - } - - return jp; - }; - } -} |