package org.opendaylight.protocol.pcep.impl.object;
-import org.opendaylight.protocol.pcep.PCEPDeserializerException;
-import org.opendaylight.protocol.pcep.PCEPDocumentedException;
-import org.opendaylight.protocol.pcep.PCEPErrors;
-import org.opendaylight.protocol.pcep.impl.Util;
+import static org.opendaylight.protocol.util.ByteBufWriteUtil.writeUnsignedByte;
+
+import com.google.common.base.Preconditions;
+import com.google.common.primitives.UnsignedBytes;
+import io.netty.buffer.ByteBuf;
+import io.netty.buffer.Unpooled;
+import java.util.List;
import org.opendaylight.protocol.pcep.spi.AbstractObjectWithTlvsParser;
-import org.opendaylight.protocol.pcep.spi.TlvHandlerRegistry;
+import org.opendaylight.protocol.pcep.spi.ObjectUtil;
+import org.opendaylight.protocol.pcep.spi.PCEPDeserializerException;
+import org.opendaylight.protocol.pcep.spi.PCEPErrors;
+import org.opendaylight.protocol.pcep.spi.TlvRegistry;
+import org.opendaylight.protocol.pcep.spi.UnknownObject;
+import org.opendaylight.protocol.pcep.spi.VendorInformationTlvRegistry;
import org.opendaylight.protocol.util.ByteArray;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.LspDbVersionTlv;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Object;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.ObjectHeader;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.OfListTlv;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.OpenObject;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.PredundancyGroupIdTlv;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.ProtocolVersion;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.StatefulCapabilityTlv;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Tlv;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.open.message.open.message.OpenBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.open.object.Tlvs;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.open.object.TlvsBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.open.object.tlvs.LspDbVersionBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.open.object.tlvs.OfListBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.open.object.tlvs.PredundancyGroupIdBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.open.object.tlvs.StatefulBuilder;
-
-import com.google.common.primitives.UnsignedBytes;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.of.list.tlv.OfList;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.open.object.Open;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.open.object.OpenBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.open.object.open.Tlvs;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.open.object.open.TlvsBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.vendor.information.tlvs.VendorInformationTlv;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
/**
- * Parser for {@link OpenObject}
+ * Parser for {@link Open}
*/
-
-public class PCEPOpenObjectParser extends AbstractObjectWithTlvsParser<OpenBuilder> {
-
- public static final int CLASS = 1;
-
- public static final int TYPE = 1;
-
- /*
- * lengths of fields in bytes
- */
- public static final int VER_FLAGS_MF_LENGTH = 1; // multi-field
- public static final int KEEPALIVE_F_LENGTH = 1;
- public static final int DEAD_TIMER_LENGTH = 1;
- public static final int SID_F_LENGTH = 1;
-
- /*
- * lengths of subfields inside multi-field in bits
- */
- public static final int VERSION_SF_LENGTH = 3;
- public static final int FLAGS_SF_LENGTH = 5;
-
- /*
- * offsets of field in bytes
- */
-
- public static final int VER_FLAGS_MF_OFFSET = 0;
- public static final int KEEPALIVE_F_OFFSET = VER_FLAGS_MF_OFFSET + VER_FLAGS_MF_LENGTH;
- public static final int DEAD_TIMER_OFFSET = KEEPALIVE_F_OFFSET + KEEPALIVE_F_LENGTH;
- public static final int SID_F_OFFSET = DEAD_TIMER_OFFSET + DEAD_TIMER_LENGTH;
- public static final int TLVS_OFFSET = SID_F_OFFSET + SID_F_LENGTH;
-
- /*
- * offsets of subfields inside multi-field in bits
- */
-
- public static final int VERSION_SF_OFFSET = 0;
- public static final int FLAGS_SF_OFFSET = VERSION_SF_LENGTH + VERSION_SF_OFFSET;
-
- private static final int PCEP_VERSION = 1;
-
- public PCEPOpenObjectParser(final TlvHandlerRegistry tlvReg) {
- super(tlvReg);
- }
-
- @Override
- public OpenObject parseObject(final ObjectHeader header, final byte[] bytes) throws PCEPDeserializerException, PCEPDocumentedException {
- if (bytes == null || bytes.length == 0) {
- throw new IllegalArgumentException("Array of bytes is mandatory. Can't be null or empty.");
- }
-
- final int versionValue = ByteArray.copyBitsRange(bytes[VER_FLAGS_MF_OFFSET], VERSION_SF_OFFSET, VERSION_SF_LENGTH);
-
- if (versionValue != PCEP_VERSION) {
- throw new PCEPDocumentedException("Unsupported PCEP version " + versionValue, PCEPErrors.PCEP_VERSION_NOT_SUPPORTED);
- }
-
- final OpenBuilder builder = new OpenBuilder();
-
- parseTlvs(builder, ByteArray.cutBytes(bytes, TLVS_OFFSET));
-
- builder.setVersion(new ProtocolVersion((short) versionValue));
- builder.setProcessingRule(header.isProcessingRule());
- builder.setIgnore(header.isIgnore());
- builder.setDeadTimer((short) UnsignedBytes.toInt(bytes[DEAD_TIMER_OFFSET]));
- builder.setKeepalive((short) UnsignedBytes.toInt(bytes[KEEPALIVE_F_OFFSET]));
- builder.setSessionId((short) UnsignedBytes.toInt(bytes[SID_F_OFFSET]));
- return builder.build();
- }
-
- @Override
- public void addTlv(final OpenBuilder builder, final Tlv tlv) {
- final TlvsBuilder tbuilder = new TlvsBuilder();
- if (tlv instanceof OfListTlv) {
- tbuilder.setOfList(new OfListBuilder().setCodes(((OfListTlv) tlv).getCodes()).build());
- } else if (tlv instanceof StatefulCapabilityTlv) {
- tbuilder.setStateful(new StatefulBuilder().setFlags(((StatefulCapabilityTlv) tlv).getFlags()).build());
- } else if (tlv instanceof PredundancyGroupIdTlv) {
- tbuilder.setPredundancyGroupId(new PredundancyGroupIdBuilder().setIdentifier(((PredundancyGroupIdTlv) tlv).getIdentifier()).build());
- } else if (tlv instanceof LspDbVersionTlv) {
- tbuilder.setLspDbVersion(new LspDbVersionBuilder().build());
- }
- builder.setTlvs(tbuilder.build());
- }
-
- @Override
- public byte[] serializeObject(final Object object) {
- if (!(object instanceof OpenObject)) {
- throw new IllegalArgumentException("Wrong instance of PCEPObject. Passed " + object.getClass() + ". Needed OpenObject.");
- }
- final OpenObject open = (OpenObject) object;
-
- final byte versionFlagMF = (byte) (PCEP_VERSION << (Byte.SIZE - VERSION_SF_LENGTH));
-
- final byte[] tlvs = serializeTlvs(open.getTlvs());
-
- final byte[] bytes = new byte[TLVS_OFFSET + tlvs.length + Util.getPadding(TLVS_OFFSET + tlvs.length, PADDED_TO)];
-
- bytes[VER_FLAGS_MF_OFFSET] = versionFlagMF;
- bytes[KEEPALIVE_F_OFFSET] = ByteArray.shortToBytes(open.getKeepalive())[1];
- bytes[DEAD_TIMER_OFFSET] = ByteArray.shortToBytes(open.getDeadTimer())[1];
- bytes[SID_F_OFFSET] = ByteArray.shortToBytes(open.getSessionId())[1];
- ByteArray.copyWhole(tlvs, bytes, TLVS_OFFSET);
-
- return bytes;
- }
-
- public byte[] serializeTlvs(final Tlvs tlvs) {
- int finalLength = 0;
- if (tlvs.getLspDbVersion() != null) {
- final byte[] lspDbBytes = serializeTlv(new LspDbVersionBuilder().setVersion(tlvs.getLspDbVersion().getVersion()).build());
- finalLength = lspDbBytes.length;
- }
- if (tlvs.getOfList() != null) {
- final byte[] ofListBytes = serializeTlv(new OfListBuilder().setCodes(tlvs.getOfList().getCodes()).build());
- finalLength = ofListBytes.length;
- }
-
- // FIXME: finish
-
- final byte[] bytes = new byte[finalLength];
-
- // FIXME copy result bytes
- return bytes;
- }
-
- @Override
- public int getObjectType() {
- return TYPE;
- }
-
- @Override
- public int getObjectClass() {
- return CLASS;
- }
+public class PCEPOpenObjectParser extends AbstractObjectWithTlvsParser<TlvsBuilder> {
+ private static final Logger LOG = LoggerFactory.getLogger(PCEPOpenObjectParser.class);
+
+ public static final int CLASS = 1;
+
+ public static final int TYPE = 1;
+
+ /*
+ * lengths of subfields inside multi-field in bits
+ */
+ private static final int VERSION_SF_LENGTH = 3;
+
+ /*
+ * offsets of subfields inside multi-field in bits
+ */
+ private static final int VERSION_SF_OFFSET = 0;
+
+ private static final int PCEP_VERSION = 1;
+
+ public PCEPOpenObjectParser(TlvRegistry tlvReg, VendorInformationTlvRegistry viTlvReg) {
+ super(tlvReg, viTlvReg);
+ }
+
+ @Override
+ public Object parseObject(final ObjectHeader header, final ByteBuf bytes) throws PCEPDeserializerException {
+ Preconditions.checkArgument(bytes != null && bytes.isReadable(), "Array of bytes is mandatory. Can't be null or empty.");
+ final int versionValue = ByteArray.copyBitsRange(bytes.readByte(), VERSION_SF_OFFSET, VERSION_SF_LENGTH);
+
+ final OpenBuilder builder = new OpenBuilder();
+ builder.setVersion(new ProtocolVersion((short) versionValue));
+ builder.setProcessingRule(header.isProcessingRule());
+ builder.setIgnore(header.isIgnore());
+ final short keepalive = (short) UnsignedBytes.toInt(bytes.readByte());
+ builder.setKeepalive(keepalive);
+ final short deadTimer = (short) UnsignedBytes.toInt(bytes.readByte());
+ if(keepalive == 0) {
+ builder.setDeadTimer((short) 0);
+ } else {
+ builder.setDeadTimer(deadTimer);
+ }
+ builder.setSessionId((short) UnsignedBytes.toInt(bytes.readByte()));
+
+ final TlvsBuilder tbuilder = new TlvsBuilder();
+ parseTlvs(tbuilder, bytes.slice());
+ builder.setTlvs(tbuilder.build());
+
+ final Open obj = builder.build();
+ if (versionValue != PCEP_VERSION) {
+ // TODO: Should we move this check into the negotiator
+ LOG.debug("Unsupported PCEP version {}", versionValue);
+ return new UnknownObject(PCEPErrors.PCEP_VERSION_NOT_SUPPORTED, obj);
+ }
+
+ return obj;
+ }
+
+ @Override
+ public void addTlv(final TlvsBuilder tbuilder, final Tlv tlv) {
+ if (tlv instanceof OfList) {
+ tbuilder.setOfList((OfList) tlv);
+ }
+ }
+
+ @Override
+ public void serializeObject(final Object object, final ByteBuf buffer) {
+ Preconditions.checkArgument(object instanceof Open, "Wrong instance of PCEPObject. Passed %s. Needed OpenObject.", object.getClass());
+ final Open open = (Open) object;
+ final ByteBuf body = Unpooled.buffer();
+ writeUnsignedByte((short) (PCEP_VERSION << (Byte.SIZE - VERSION_SF_LENGTH)), body);
+ writeUnsignedByte(open.getKeepalive(), body);
+ writeUnsignedByte(open.getDeadTimer(), body);
+ Preconditions.checkArgument(open.getSessionId() != null, "SessionId is mandatory.");
+ writeUnsignedByte(open.getSessionId(), body);
+ serializeTlvs(open.getTlvs(), body);
+ ObjectUtil.formatSubobject(TYPE, CLASS, object.isProcessingRule(), object.isIgnore(), body, buffer);
+ }
+
+ public void serializeTlvs(final Tlvs tlvs, final ByteBuf body) {
+ if (tlvs == null) {
+ return;
+ }
+ if (tlvs.getOfList() != null) {
+ serializeTlv(tlvs.getOfList(), body);
+ }
+ serializeVendorInformationTlvs(tlvs.getVendorInformationTlv(), body);
+ }
+
+ @Override
+ protected final void addVendorInformationTlvs(final TlvsBuilder builder, final List<VendorInformationTlv> tlvs) {
+ if (!tlvs.isEmpty()) {
+ builder.setVendorInformationTlv(tlvs);
+ }
+ }
}
Code Review / bgpcep.git / blobdiff