| /* |
| * 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.onosproject.segmentrouting.web; |
| |
| import org.onlab.packet.Ethernet; |
| import org.onlab.packet.IpPrefix; |
| import org.onosproject.cli.net.IpProtocol; |
| import org.onosproject.codec.CodecContext; |
| import org.onosproject.codec.JsonCodec; |
| import com.fasterxml.jackson.databind.node.ObjectNode; |
| import org.onosproject.net.flow.DefaultTrafficSelector; |
| import org.onosproject.net.flow.TrafficSelector; |
| import org.onosproject.net.flow.criteria.Criterion; |
| import org.onosproject.net.flow.criteria.IPCriterion; |
| import org.onosproject.net.flow.criteria.IPProtocolCriterion; |
| import org.onosproject.net.flow.criteria.TcpPortCriterion; |
| import org.onosproject.net.flow.criteria.UdpPortCriterion; |
| import org.onosproject.segmentrouting.Policy; |
| import org.onosproject.segmentrouting.TunnelPolicy; |
| |
| public final class PolicyCodec extends JsonCodec<Policy> { |
| |
| // JSON field names |
| private static final String POLICY_ID = "policy_id"; |
| private static final String PRIORITY = "priority"; |
| private static final String TYPE = "policy_type"; |
| private static final String TUNNEL_ID = "tunnel_id"; |
| private static final String DST_IP = "dst_ip"; |
| private static final String SRC_IP = "src_ip"; |
| private static final String PROTO_TYPE = "proto_type"; |
| private static final String SRC_PORT = "src_tp_port"; |
| private static final String DST_PORT = "dst_tp_port"; |
| |
| @Override |
| public ObjectNode encode(Policy policy, CodecContext context) { |
| final ObjectNode result = context.mapper().createObjectNode() |
| .put(POLICY_ID, policy.id()); |
| |
| result.put(PRIORITY, policy.priority()); |
| result.put(TYPE, policy.type().toString()); |
| |
| if (policy.selector().getCriterion(Criterion.Type.IPV4_DST) != null) { |
| IPCriterion criterion = (IPCriterion) policy.selector().getCriterion( |
| Criterion.Type.IPV4_DST); |
| result.put(DST_IP, criterion.ip().toString()); |
| } |
| if (policy.selector().getCriterion(Criterion.Type.IPV4_SRC) != null) { |
| IPCriterion criterion = (IPCriterion) policy.selector().getCriterion( |
| Criterion.Type.IPV4_SRC); |
| result.put(SRC_IP, criterion.ip().toString()); |
| } |
| if (policy.selector().getCriterion(Criterion.Type.IP_PROTO) != null) { |
| IPProtocolCriterion protocolCriterion = |
| (IPProtocolCriterion) policy.selector().getCriterion(Criterion.Type.IP_PROTO); |
| result.put(PROTO_TYPE, protocolCriterion.protocol()); |
| } |
| if (policy.selector().getCriterion(Criterion.Type.TCP_SRC) != null) { |
| TcpPortCriterion tcpPortCriterion = |
| (TcpPortCriterion) policy.selector().getCriterion(Criterion.Type.TCP_SRC); |
| result.put(SRC_PORT, tcpPortCriterion.toString()); |
| } else if (policy.selector().getCriterion(Criterion.Type.UDP_SRC) != null) { |
| UdpPortCriterion udpPortCriterion = |
| (UdpPortCriterion) policy.selector().getCriterion(Criterion.Type.UDP_SRC); |
| result.put(SRC_PORT, udpPortCriterion.toString()); |
| } |
| if (policy.selector().getCriterion(Criterion.Type.TCP_DST) != null) { |
| TcpPortCriterion tcpPortCriterion = |
| (TcpPortCriterion) policy.selector().getCriterion(Criterion.Type.TCP_DST); |
| result.put(DST_PORT, tcpPortCriterion.toString()); |
| } else if (policy.selector().getCriterion(Criterion.Type.UDP_DST) != null) { |
| UdpPortCriterion udpPortCriterion = |
| (UdpPortCriterion) policy.selector().getCriterion(Criterion.Type.UDP_DST); |
| result.put(DST_PORT, udpPortCriterion.toString()); |
| } |
| if (policy.selector().getCriterion(Criterion.Type.IP_PROTO) != null) { |
| IPProtocolCriterion protocolCriterion = |
| (IPProtocolCriterion) policy.selector().getCriterion(Criterion.Type.IP_PROTO); |
| result.put(PROTO_TYPE, protocolCriterion.toString()); |
| } |
| |
| if (policy.type() == Policy.Type.TUNNEL_FLOW) { |
| result.put(TUNNEL_ID, ((TunnelPolicy) policy).tunnelId()); |
| } |
| |
| return result; |
| } |
| |
| @Override |
| public Policy decode(ObjectNode json, CodecContext context) { |
| |
| String pid = json.path(POLICY_ID).asText(); |
| String type = json.path(TYPE).asText(); |
| int priority = json.path(PRIORITY).asInt(); |
| String dstIp = json.path(DST_IP).asText(); |
| String srcIp = json.path(SRC_IP).asText(); |
| String tunnelId = json.path(TUNNEL_ID).asText(); |
| String protoType = json.path(PROTO_TYPE).asText(); |
| short srcPort = json.path(SRC_PORT).shortValue(); |
| short dstPort = json.path(DST_PORT).shortValue(); |
| |
| if (tunnelId != null) { |
| TrafficSelector.Builder tsb = DefaultTrafficSelector.builder(); |
| tsb.matchEthType(Ethernet.TYPE_IPV4); |
| if (dstIp != null && !dstIp.isEmpty()) { |
| tsb.matchIPDst(IpPrefix.valueOf(dstIp)); |
| } |
| if (srcIp != null && !srcIp.isEmpty()) { |
| tsb.matchIPSrc(IpPrefix.valueOf(srcIp)); |
| } |
| if (protoType != null && !protoType.isEmpty()) { |
| Short ipProto = Short.valueOf(IpProtocol.valueOf(protoType).value()); |
| tsb.matchIPProtocol(ipProto.byteValue()); |
| if (IpProtocol.valueOf(protoType).equals(IpProtocol.TCP)) { |
| if (srcPort != 0) { |
| tsb.matchTcpSrc(srcPort); |
| } |
| if (dstPort != 0) { |
| tsb.matchTcpDst(dstPort); |
| } |
| } else if (IpProtocol.valueOf(protoType).equals(IpProtocol.UDP)) { |
| if (srcPort != 0) { |
| tsb.matchUdpSrc(srcPort); |
| } |
| if (dstPort != 0) { |
| tsb.matchUdpDst(dstPort); |
| } |
| } |
| } |
| TunnelPolicy.Builder tpb = TunnelPolicy.builder().setPolicyId(pid); |
| if (tunnelId != null) { |
| tpb.setTunnelId(tunnelId); |
| } |
| if (!json.path(PRIORITY).isMissingNode()) { |
| tpb.setPriority(priority); |
| } |
| if (!json.path(TYPE).isMissingNode()) { |
| tpb.setType(Policy.Type.valueOf(type)); |
| } |
| tpb.setSelector(tsb.build()); |
| |
| return tpb.build(); |
| } else { |
| // TODO: handle more policy types |
| return null; |
| } |
| |
| |
| } |
| |
| } |