diff options
Diffstat (limited to 'framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio')
95 files changed, 12527 insertions, 0 deletions
diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/exceptions/BgpParseException.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/exceptions/BgpParseException.java new file mode 100755 index 00000000..d0890320 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/exceptions/BgpParseException.java @@ -0,0 +1,106 @@ +/* + * 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.bgpio.exceptions; + +import org.jboss.netty.buffer.ChannelBuffer; + +/** + * Custom Exception for BGP IO. + */ +public class BgpParseException extends Exception { + + private static final long serialVersionUID = 1L; + private byte errorCode; + private byte errorSubCode; + private ChannelBuffer data; + + /** + * Default constructor to create a new exception. + */ + public BgpParseException() { + super(); + } + + /** + * Constructor to create exception from message and cause. + * + * @param message the detail of exception in string + * @param cause underlying cause of the error + */ + public BgpParseException(final String message, final Throwable cause) { + super(message, cause); + } + + /** + * Constructor to create exception from message. + * + * @param message the detail of exception in string + */ + public BgpParseException(final String message) { + super(message); + } + + /** + * Constructor to create exception from cause. + * + * @param cause underlying cause of the error + */ + public BgpParseException(final Throwable cause) { + super(cause); + } + + /** + * Constructor to create exception from error code and error subcode. + * + * @param errorCode error code of BGP message + * @param errorSubCode error subcode of BGP message + * @param data error data of BGP message + */ + public BgpParseException(final byte errorCode, final byte errorSubCode, final ChannelBuffer data) { + super(); + this.errorCode = errorCode; + this.errorSubCode = errorSubCode; + this.data = data; + } + + /** + * Returns errorcode for this exception. + * + * @return errorcode for this exception + */ + public byte getErrorCode() { + return this.errorCode; + } + + /** + * Returns error Subcode for this exception. + * + * @return error Subcode for this exception + */ + public byte getErrorSubCode() { + return this.errorSubCode; + } + + /** + * Returns error data for this exception. + * + * @return error data for this exception + */ + public ChannelBuffer getData() { + return this.data; + } +}
\ No newline at end of file diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/exceptions/package-info.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/exceptions/package-info.java new file mode 100755 index 00000000..78b28072 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/exceptions/package-info.java @@ -0,0 +1,20 @@ +/* + * 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. + */ + +/** + * BGP custom exceptions. + */ +package org.onosproject.bgpio.exceptions; diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BgpFactories.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BgpFactories.java new file mode 100755 index 00000000..eb18c7d1 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BgpFactories.java @@ -0,0 +1,82 @@ +/*
+ * 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.bgpio.protocol;
+
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.onosproject.bgpio.exceptions.BgpParseException;
+import org.onosproject.bgpio.protocol.ver4.BgpFactoryVer4;
+import org.onosproject.bgpio.types.BgpHeader;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Abstraction to provide the version for BGP.
+ */
+public final class BgpFactories {
+
+ protected static final Logger log = LoggerFactory.getLogger(BgpFactories.class);
+
+ private static final GenericReader GENERIC_READER = new GenericReader();
+
+ private BgpFactories() {
+ }
+
+ /**
+ * Returns the instance of BGP Version.
+ *
+ * @param version BGP version
+ * @return BGP version
+ */
+ public static BgpFactory getFactory(BgpVersion version) {
+ switch (version) {
+ case BGP_4:
+ return BgpFactoryVer4.INSTANCE;
+ default:
+ throw new IllegalArgumentException("[BgpFactory:]Unknown version: " + version);
+ }
+ }
+
+ /**
+ * Reader class for reading BGP messages from channel buffer.
+ *
+ */
+ private static class GenericReader implements BgpMessageReader<BgpMessage> {
+
+ @Override
+ public BgpMessage readFrom(ChannelBuffer bb, BgpHeader bgpHeader)
+ throws BgpParseException {
+ BgpFactory factory;
+
+ if (!bb.readable()) {
+ log.error("Empty message received");
+ throw new BgpParseException("Empty message received");
+ }
+ // TODO: Currently only BGP version 4 is supported
+ factory = org.onosproject.bgpio.protocol.ver4.BgpFactoryVer4.INSTANCE;
+ return factory.getReader().readFrom(bb, bgpHeader);
+ }
+ }
+
+ /**
+ * Returns BGP messsage generic reader.
+ *
+ * @return bgp message generic reader
+ */
+ public static BgpMessageReader<BgpMessage> getGenericReader() {
+ return GENERIC_READER;
+ }
+}
diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BgpFactory.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BgpFactory.java new file mode 100755 index 00000000..11a85ff8 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BgpFactory.java @@ -0,0 +1,60 @@ +/* + * 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.bgpio.protocol; + +/** + * Abstraction of an message factory providing builder functions to BGP messages + * and objects. + * + */ +public interface BgpFactory { + + /** + * Gets the builder object for a open message. + * + * @return builder object for open message + */ + BgpOpenMsg.Builder openMessageBuilder(); + + /** + * Gets the builder object for a keepalive message. + * + * @return builder object for keepalive message + */ + BgpKeepaliveMsg.Builder keepaliveMessageBuilder(); + + /** + * Gets the builder object for a notification message. + * + * @return builder object for notification message. + */ + BgpNotificationMsg.Builder notificationMessageBuilder(); + + /** + * Gets the BGP message reader. + * + * @return BGP message reader + */ + BgpMessageReader<BgpMessage> getReader(); + + /** + * Returns BGP version. + * + * @return BGP version + */ + BgpVersion getVersion(); +} diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BgpKeepaliveMsg.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BgpKeepaliveMsg.java new file mode 100644 index 00000000..0cb776a0 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BgpKeepaliveMsg.java @@ -0,0 +1,48 @@ +/* + * 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.bgpio.protocol; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.bgpio.types.BgpHeader; + +/** + * Abstraction of an entity providing BGP Keepalive Message. + */ +public interface BgpKeepaliveMsg extends BgpMessage { + + @Override + BgpVersion getVersion(); + + @Override + BgpType getType(); + + @Override + void writeTo(ChannelBuffer channelBuffer); + + @Override + BgpHeader getHeader(); + + /** + * Builder interface with get and set functions to build Keepalive message. + */ + interface Builder extends BgpMessage.Builder { + @Override + BgpKeepaliveMsg build(); + + @Override + Builder setHeader(BgpHeader bgpMsgHeader); + } +} diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BgpLSNlri.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BgpLSNlri.java new file mode 100644 index 00000000..dd8857a7 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BgpLSNlri.java @@ -0,0 +1,54 @@ +/* + * 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.bgpio.protocol; + +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.protocol.linkstate.BgpNodeLSNlriVer4.ProtocolType; +import org.onosproject.bgpio.types.RouteDistinguisher; + +/** + * Abstraction of an entity providing BGP-LS NLRI. + */ +public interface BgpLSNlri { + /** + * Returns NlriType of BGP-LS NLRI. + * + * @return NlriType of BGP-LS NLRI + */ + NlriType getNlriType(); + + /** + * Returns Identifier in Nlri. + * + * @return Identifier in Nlri + */ + long getIdentifier(); + + /** + * Returns Protocol Id in Nlri. + * + * @return Protocol Id in Nlri + * @throws BgpParseException while getting protocol ID + */ + ProtocolType getProtocolId() throws BgpParseException; + + /** + * Returns Route distinguisher in Nlri. + * + * @return Route distinguisher in Nlri + */ + RouteDistinguisher getRouteDistinguisher(); +} diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BgpLinkLsNlri.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BgpLinkLsNlri.java new file mode 100644 index 00000000..3924a13b --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BgpLinkLsNlri.java @@ -0,0 +1,47 @@ +/* + * 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.bgpio.protocol; + +import java.util.List; + +import org.onosproject.bgpio.types.BgpValueType; +import org.onosproject.bgpio.protocol.linkstate.NodeDescriptors; + +/** + * Abstraction of an entity providing BGP-LS Link NLRI. + */ +public interface BgpLinkLsNlri extends BgpLSNlri { + /** + * Returns local node descriptors. + * + * @return local node descriptors + */ + NodeDescriptors localNodeDescriptors(); + + /** + * Returns remote node descriptors. + * + * @return remote node descriptors + */ + NodeDescriptors remoteNodeDescriptors(); + + /** + * Returns link descriptors. + * + * @return link descriptors + */ + List<BgpValueType> linkDescriptors(); +}
\ No newline at end of file diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BgpMessage.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BgpMessage.java new file mode 100644 index 00000000..f1e1b96f --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BgpMessage.java @@ -0,0 +1,71 @@ +/* + * 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.bgpio.protocol; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.types.BgpHeader; + +/** + * Abstraction of an entity providing BGP Messages. + */ +public interface BgpMessage extends Writeable { + /** + * Returns BGP Header of BGP Message. + * + * @return BGP Header of BGP Message + */ + BgpHeader getHeader(); + + /** + * Returns version of BGP Message. + * + * @return version of BGP Message + */ + BgpVersion getVersion(); + + /** + * Returns BGP Type of BGP Message. + * + * @return BGP Type of BGP Message + */ + BgpType getType(); + + @Override + void writeTo(ChannelBuffer cb) throws BgpParseException; + + /** + * Builder interface with get and set functions to build BGP Message. + */ + interface Builder { + /** + * Builds BGP Message. + * + * @return BGP Message + * @throws BgpParseException while building bgp message + */ + BgpMessage build() throws BgpParseException; + + /** + * Sets BgpHeader and return its builder. + * + * @param bgpMsgHeader BGP Message Header + * @return builder by setting BGP message header + */ + Builder setHeader(BgpHeader bgpMsgHeader); + } +}
\ No newline at end of file diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BgpMessageReader.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BgpMessageReader.java new file mode 100755 index 00000000..b8318b29 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BgpMessageReader.java @@ -0,0 +1,36 @@ +/* + * 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.bgpio.protocol; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.types.BgpHeader; + +/** + * Abstraction of an entity providing BGP Message Reader. + */ +public interface BgpMessageReader<T> { + + /** + * Reads the Objects in the BGP Message and Returns BGP Message. + * + * @param cb Channel Buffer + * @param bgpHeader BGP message header + * @return BGP Message + * @throws BgpParseException while parsing BGP message. + */ + T readFrom(ChannelBuffer cb, BgpHeader bgpHeader) throws BgpParseException; +}
\ No newline at end of file diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BgpMessageWriter.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BgpMessageWriter.java new file mode 100644 index 00000000..bb75b5ea --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BgpMessageWriter.java @@ -0,0 +1,36 @@ +/* + * 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.bgpio.protocol; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.bgpio.exceptions.BgpParseException; + +/** + * Abstraction of an entity providing BGP Message Writer. + */ +public interface BgpMessageWriter<T> { + + /** + * Writes the Objects of the BGP Message into Channel Buffer. + * + * @param cb Channel Buffer + * @param message BGP Message + * @throws BgpParseException + * While writing message + */ + void write(ChannelBuffer cb, T message) throws BgpParseException; +}
\ No newline at end of file diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BgpNodeLSNlri.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BgpNodeLSNlri.java new file mode 100644 index 00000000..13ef5cc5 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BgpNodeLSNlri.java @@ -0,0 +1,30 @@ +/* + * 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.bgpio.protocol; + +import org.onosproject.bgpio.protocol.linkstate.BgpNodeLSIdentifier; + +/** + * Abstraction of an entity providing BGP-LS Node NLRI. + */ +public interface BgpNodeLSNlri extends BgpLSNlri { + /** + * Returns local node descriptors. + * + * @return local node descriptors + */ + BgpNodeLSIdentifier getLocalNodeDescriptors(); +} diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BgpNotificationMsg.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BgpNotificationMsg.java new file mode 100644 index 00000000..e3361aa7 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BgpNotificationMsg.java @@ -0,0 +1,77 @@ +/* + * 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.bgpio.protocol; + +import org.onosproject.bgpio.exceptions.BgpParseException; + +/** + * Abstraction of an entity providing BGP notification message. + */ +public interface BgpNotificationMsg extends BgpMessage { + /** + * Returns errorCode in notification message. + * + * @return errorCode in notification message + */ + byte getErrorCode(); + + /** + * Returns error subCode in notification message. + * + * @return error subCode in notification message + */ + byte getErrorSubCode(); + + /** + * Returns error data in notification message. + * + * @return error data in notification message + */ + byte[] getData(); + + /** + * Builder interface with get and set functions to build notification message. + */ + public interface Builder extends BgpMessage.Builder { + + @Override + BgpNotificationMsg build() throws BgpParseException; + + /** + * Sets errorCode in notification message and return its builder. + * + * @param errorCode in notification message + * @return builder by setting errorCode in notification message + */ + Builder setErrorCode(byte errorCode); + + /** + * Sets error subCode in notification message and return its builder. + * + * @param errorSubCode in notification message + * @return builder by setting error subCode in notification message + */ + Builder setErrorSubCode(byte errorSubCode); + + /** + * Sets error data in notification message and return its builder. + * + * @param data in notification message + * @return builder by setting Data in notification message + */ + Builder setData(byte[] data); + } +}
\ No newline at end of file diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BgpOpenMsg.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BgpOpenMsg.java new file mode 100644 index 00000000..94ec2235 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BgpOpenMsg.java @@ -0,0 +1,127 @@ +/* + * 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.bgpio.protocol; + +import java.util.LinkedList; + +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.types.BgpHeader; +import org.onosproject.bgpio.types.BgpValueType; + +/** + * Abstraction of an entity providing BGP Open Message. + */ +public interface BgpOpenMsg extends BgpMessage { + + @Override + BgpHeader getHeader(); + + @Override + BgpVersion getVersion(); + + @Override + BgpType getType(); + + /** + * Returns hold time of Open Message. + * + * @return hold time of Open Message + */ + short getHoldTime(); + + /** + * Returns AS Number of Open Message. + * + * @return AS Number of Open Message + */ + short getAsNumber(); + + /** + * Returns BGP Identifier of Open Message. + * + * @return BGP Identifier of Open Message + */ + int getBgpId(); + + /** + * Returns capabilities of Open Message. + * + * @return capabilities of Open Message + */ + LinkedList<BgpValueType> getCapabilityTlv(); + + /** + * Builder interface with get and set functions to build Open message. + */ + interface Builder extends BgpMessage.Builder { + + @Override + BgpOpenMsg build() throws BgpParseException; + + /** + * Sets hold time in Open Message and return its builder. + * + * @param holdtime hold timer value in open message + * @return builder by setting hold time + */ + Builder setHoldTime(short holdtime); + + /** + * Sets AS number in Open Message and return its builder. + * + * @param asNumber as number in open message + * @return builder by setting asNumber + */ + Builder setAsNumber(short asNumber); + + /** + * Sets BGP Identifier in Open Message and return its builder. + * + * @param bgpId BGP Identifier in open message + * @return builder by setting BGP Identifier + */ + Builder setBgpId(int bgpId); + + /** + * Sets capabilities in Open Message and return its builder. + * + * @param capabilityTlv capabilities in open message + * @return builder by setting capabilities + */ + Builder setCapabilityTlv(LinkedList<BgpValueType> capabilityTlv); + + /** + * Sets isLargeAsCapabilityTlvSet and return its builder. + * + * @param isLargeAsCapabilitySet + * boolean value to know whether large AS capability is set or not + * @return builder by setting capabilities + */ + Builder setLargeAsCapabilityTlv(boolean isLargeAsCapabilitySet); + + /** + * Sets isLsCapabilityTlvSet and return its builder. + * + * @param isLsCapabilitySet + * boolean value to know whether LS capability is set or not + * @return builder by setting capabilities + */ + Builder setLsCapabilityTlv(boolean isLsCapabilitySet); + + @Override + Builder setHeader(BgpHeader bgpMsgHeader); + } +} diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BgpPrefixLSNlri.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BgpPrefixLSNlri.java new file mode 100644 index 00000000..54bcdba3 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BgpPrefixLSNlri.java @@ -0,0 +1,40 @@ +/* + * 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.bgpio.protocol; + +import java.util.List; + +import org.onosproject.bgpio.types.BgpValueType; +import org.onosproject.bgpio.protocol.linkstate.NodeDescriptors; + +/** + * Abstraction of an entity providing BGP-LS Prefix NLRI. + */ +public interface BgpPrefixLSNlri extends BgpLSNlri { + /** + * Returns local node descriptors. + * + * @return local node descriptors + */ + NodeDescriptors getLocalNodeDescriptors(); + + /** + * Returns list of Prefix descriptor. + * + * @return list of Prefix descriptor + */ + List<BgpValueType> getPrefixdescriptor(); +} diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BgpType.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BgpType.java new file mode 100755 index 00000000..b90721d5 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BgpType.java @@ -0,0 +1,45 @@ +/* + * 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.bgpio.protocol; + +/** + * Enum to Provide the Different types of BGP messages. + */ +public enum BgpType { + + NONE(0), OPEN(1), UPDATE(2), NOTIFICATION(3), KEEP_ALIVE(4); + + int value; + + /** + * Assign value with the value val as the types of BGP message. + * + * @param val type of BGP message + */ + BgpType(int val) { + value = val; + } + + /** + * Returns value as type of BGP message. + * + * @return value type of BGP message + */ + public byte getType() { + return (byte) value; + } +}
\ No newline at end of file diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BgpUpdateMsg.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BgpUpdateMsg.java new file mode 100644 index 00000000..d79a4236 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BgpUpdateMsg.java @@ -0,0 +1,48 @@ +/* + * 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.bgpio.protocol; + +import java.util.List; + +import org.onlab.packet.IpPrefix; +import org.onosproject.bgpio.protocol.ver4.BgpPathAttributes; + +/** + * Abstraction of an entity providing BGP Update Message. + */ +public interface BgpUpdateMsg extends BgpMessage { + /** + * Returns path attributes in BGP Update Message. + * + * @return path attributes in BGP Update Message + */ + BgpPathAttributes bgpPathAttributes(); + + /** + * Returns withdrawn Routes. + * + * @return withdrawn Routes + */ + List<IpPrefix> withdrawnRoutes(); + + /** + * Returns NLRI list of prefix. + * + * @return NLRI list of prefix + */ + List<IpPrefix> nlri(); +} diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BgpVersion.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BgpVersion.java new file mode 100755 index 00000000..b1f037f4 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BgpVersion.java @@ -0,0 +1,45 @@ +/* + * 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.bgpio.protocol; + +/** + * Enum to provide BGP Message Version. + */ +public enum BgpVersion { + + BGP_4(4); + + public final int packetVersion; + + /** + * Assign BGP PacketVersion with specified packetVersion. + * + * @param packetVersion version of BGP + */ + BgpVersion(final int packetVersion) { + this.packetVersion = packetVersion; + } + + /** + * Returns Packet version of BGP Message. + * + * @return packetVersion + */ + public int getPacketVersion() { + return packetVersion; + } +}
\ No newline at end of file diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/IGPRouterID.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/IGPRouterID.java new file mode 100644 index 00000000..0e531d64 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/IGPRouterID.java @@ -0,0 +1,23 @@ +/* + * 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.bgpio.protocol; + +/** + * Provides Abstraction of IGP RouterID TLV. + */ +public interface IGPRouterID { +}
\ No newline at end of file diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/NlriType.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/NlriType.java new file mode 100644 index 00000000..535ba71d --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/NlriType.java @@ -0,0 +1,45 @@ +/* + * 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.bgpio.protocol; + +/** + * Enum to Provide the Different BGP-LS NLRI types. + */ +public enum NlriType { + + NODE(1), LINK(2), PREFIX_IPV4(3), PREFIX_IPV6(4); + + int value; + + /** + * Assign value with the value as the LINK-STATE NLRI type. + * + * @param value LINK-STATE NLRI type + */ + NlriType(int value) { + this.value = value; + } + + /** + * Returns value as LINK-STATE NLRI type. + * + * @return value LINK-STATE NLRI type + */ + public byte getType() { + return (byte) value; + } +}
\ No newline at end of file diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/Writeable.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/Writeable.java new file mode 100755 index 00000000..1c6f7fc2 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/Writeable.java @@ -0,0 +1,35 @@ +/* + * 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.bgpio.protocol; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.bgpio.exceptions.BgpParseException; + +/** + * Abstraction of an entity providing functionality to write byte streams of + * Messages to channel buffer. + */ +public interface Writeable { + + /** + * Writes byte streams of messages to channel buffer. + * + * @param cb channelBuffer + * @throws BgpParseException when error occurs while writing BGP message to channel buffer + */ + void writeTo(ChannelBuffer cb) throws BgpParseException; +}
\ No newline at end of file diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/linkstate/BgpLinkLSIdentifier.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/linkstate/BgpLinkLSIdentifier.java new file mode 100644 index 00000000..a4360fdf --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/linkstate/BgpLinkLSIdentifier.java @@ -0,0 +1,297 @@ +/* + * 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.bgpio.protocol.linkstate; + +import java.util.Iterator; +import java.util.LinkedList; +import java.util.List; +import java.util.ListIterator; +import java.util.Objects; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.types.BgpErrorType; +import org.onosproject.bgpio.types.BgpValueType; +import org.onosproject.bgpio.types.IPv4AddressTlv; +import org.onosproject.bgpio.types.IPv6AddressTlv; +import org.onosproject.bgpio.types.LinkLocalRemoteIdentifiersTlv; +import org.onosproject.bgpio.types.attr.BgpAttrNodeMultiTopologyId; +import org.onosproject.bgpio.util.Constants; +import org.onosproject.bgpio.util.UnSupportedAttribute; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.common.base.MoreObjects; +import com.google.common.base.Preconditions; + +/** + * Implementation of local node descriptors, remote node descriptors and link descriptors. + */ +public class BgpLinkLSIdentifier implements Comparable<Object> { + private static final Logger log = LoggerFactory.getLogger(BgpLinkLSIdentifier.class); + public static final short IPV4_INTERFACE_ADDRESS_TYPE = 259; + public static final short IPV4_NEIGHBOR_ADDRESS_TYPE = 260; + public static final short IPV6_INTERFACE_ADDRESS_TYPE = 261; + public static final short IPV6_NEIGHBOR_ADDRESS_TYPE = 262; + + private NodeDescriptors localNodeDescriptors; + private NodeDescriptors remoteNodeDescriptors; + private List<BgpValueType> linkDescriptor; + + /** + * Initialize fields. + */ + public BgpLinkLSIdentifier() { + this.localNodeDescriptors = null; + this.remoteNodeDescriptors = null; + this.linkDescriptor = null; + } + + /** + * Constructors to initialize parameters. + * + * @param localNodeDescriptors local node descriptors + * @param remoteNodeDescriptors remote node descriptors + * @param linkDescriptor link descriptors + */ + public BgpLinkLSIdentifier(NodeDescriptors localNodeDescriptors, NodeDescriptors remoteNodeDescriptors, + LinkedList<BgpValueType> linkDescriptor) { + this.localNodeDescriptors = Preconditions.checkNotNull(localNodeDescriptors); + this.remoteNodeDescriptors = Preconditions.checkNotNull(remoteNodeDescriptors); + this.linkDescriptor = Preconditions.checkNotNull(linkDescriptor); + } + + /** + * Reads channel buffer and parses link identifier. + * + * @param cb ChannelBuffer + * @param protocolId in linkstate nlri + * @return object of BGPLinkLSIdentifier + * @throws BgpParseException while parsing link identifier + */ + public static BgpLinkLSIdentifier parseLinkIdendifier(ChannelBuffer cb, byte protocolId) throws BgpParseException { + //Parse local node descriptor + NodeDescriptors localNodeDescriptors = new NodeDescriptors(); + localNodeDescriptors = parseNodeDescriptors(cb, NodeDescriptors.LOCAL_NODE_DES_TYPE, protocolId); + + //Parse remote node descriptor + NodeDescriptors remoteNodeDescriptors = new NodeDescriptors(); + remoteNodeDescriptors = parseNodeDescriptors(cb, NodeDescriptors.REMOTE_NODE_DES_TYPE, protocolId); + + //Parse link descriptor + LinkedList<BgpValueType> linkDescriptor = new LinkedList<>(); + linkDescriptor = parseLinkDescriptors(cb); + return new BgpLinkLSIdentifier(localNodeDescriptors, remoteNodeDescriptors, linkDescriptor); + } + + /** + * Parses Local/Remote node descriptors. + * + * @param cb ChannelBuffer + * @param desType descriptor type + * @param protocolId protocol identifier + * @return object of NodeDescriptors + * @throws BgpParseException while parsing Local/Remote node descriptors + */ + public static NodeDescriptors parseNodeDescriptors(ChannelBuffer cb, short desType, byte protocolId) + throws BgpParseException { + log.debug("parse Node descriptors"); + ChannelBuffer tempBuf = cb.copy(); + short type = cb.readShort(); + short length = cb.readShort(); + if (cb.readableBytes() < length) { + throw new BgpParseException(BgpErrorType.UPDATE_MESSAGE_ERROR, BgpErrorType.OPTIONAL_ATTRIBUTE_ERROR, + tempBuf.readBytes(cb.readableBytes() + Constants.TYPE_AND_LEN_AS_SHORT)); + } + NodeDescriptors nodeIdentifier = new NodeDescriptors(); + ChannelBuffer tempCb = cb.readBytes(length); + + if (type == desType) { + nodeIdentifier = NodeDescriptors.read(tempCb, length, desType, protocolId); + } else { + throw new BgpParseException(BgpErrorType.UPDATE_MESSAGE_ERROR, BgpErrorType.MALFORMED_ATTRIBUTE_LIST, null); + } + return nodeIdentifier; + } + + /** + * Parses link descriptors. + * + * @param cb ChannelBuffer + * @return list of link descriptors + * @throws BgpParseException while parsing link descriptors + */ + public static LinkedList<BgpValueType> parseLinkDescriptors(ChannelBuffer cb) throws BgpParseException { + LinkedList<BgpValueType> linkDescriptor = new LinkedList<>(); + BgpValueType tlv = null; + int count = 0; + + while (cb.readableBytes() > 0) { + ChannelBuffer tempBuf = cb.copy(); + short type = cb.readShort(); + short length = cb.readShort(); + if (cb.readableBytes() < length) { + throw new BgpParseException(BgpErrorType.UPDATE_MESSAGE_ERROR, BgpErrorType.OPTIONAL_ATTRIBUTE_ERROR, + tempBuf.readBytes(cb.readableBytes() + Constants.TYPE_AND_LEN_AS_SHORT)); + } + ChannelBuffer tempCb = cb.readBytes(length); + switch (type) { + case LinkLocalRemoteIdentifiersTlv.TYPE: + tlv = LinkLocalRemoteIdentifiersTlv.read(tempCb); + break; + case IPV4_INTERFACE_ADDRESS_TYPE: + tlv = IPv4AddressTlv.read(tempCb, IPV4_INTERFACE_ADDRESS_TYPE); + break; + case IPV4_NEIGHBOR_ADDRESS_TYPE: + tlv = IPv4AddressTlv.read(tempCb, IPV4_NEIGHBOR_ADDRESS_TYPE); + break; + case IPV6_INTERFACE_ADDRESS_TYPE: + tlv = IPv6AddressTlv.read(tempCb, IPV6_INTERFACE_ADDRESS_TYPE); + break; + case IPV6_NEIGHBOR_ADDRESS_TYPE: + tlv = IPv6AddressTlv.read(tempCb, IPV6_NEIGHBOR_ADDRESS_TYPE); + break; + case BgpAttrNodeMultiTopologyId.ATTRNODE_MULTITOPOLOGY: + tlv = BgpAttrNodeMultiTopologyId.read(tempCb); + count = count++; + //MultiTopologyId TLV cannot repeat more than once + if (count > 1) { + //length + 4 implies data contains type, length and value + throw new BgpParseException(BgpErrorType.UPDATE_MESSAGE_ERROR, + BgpErrorType.OPTIONAL_ATTRIBUTE_ERROR, tempBuf.readBytes(length + + Constants.TYPE_AND_LEN_AS_SHORT)); + } + break; + default: + UnSupportedAttribute.skipBytes(tempCb, length); + } + linkDescriptor.add(tlv); + } + return linkDescriptor; + } + + /** + * Returns local node descriptors. + * + * @return local node descriptors + */ + public NodeDescriptors localNodeDescriptors() { + return this.localNodeDescriptors; + } + + /** + * Returns remote node descriptors. + * + * @return remote node descriptors + */ + public NodeDescriptors remoteNodeDescriptors() { + return this.remoteNodeDescriptors; + } + + /** + * Returns link descriptors. + * + * @return link descriptors + */ + public List<BgpValueType> linkDescriptors() { + return this.linkDescriptor; + } + + @Override + public int hashCode() { + return Objects.hash(linkDescriptor, localNodeDescriptors, remoteNodeDescriptors); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + if (obj instanceof BgpLinkLSIdentifier) { + int countObjSubTlv = 0; + int countOtherSubTlv = 0; + boolean isCommonSubTlv = true; + BgpLinkLSIdentifier other = (BgpLinkLSIdentifier) obj; + Iterator<BgpValueType> objListIterator = other.linkDescriptor.iterator(); + countOtherSubTlv = other.linkDescriptor.size(); + countObjSubTlv = linkDescriptor.size(); + if (countObjSubTlv != countOtherSubTlv) { + return false; + } else { + while (objListIterator.hasNext() && isCommonSubTlv) { + BgpValueType subTlv = objListIterator.next(); + if (linkDescriptor.contains(subTlv) && other.linkDescriptor.contains(subTlv)) { + isCommonSubTlv = Objects.equals(linkDescriptor.get(linkDescriptor.indexOf(subTlv)), + other.linkDescriptor.get(other.linkDescriptor.indexOf(subTlv))); + } else { + isCommonSubTlv = false; + } + } + return isCommonSubTlv && Objects.equals(this.localNodeDescriptors, other.localNodeDescriptors) + && Objects.equals(this.remoteNodeDescriptors, other.remoteNodeDescriptors); + } + } + return false; + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()) + .add("localNodeDescriptors", localNodeDescriptors) + .add("remoteNodeDescriptors", remoteNodeDescriptors) + .add("linkDescriptor", linkDescriptor) + .toString(); + } + + @Override + public int compareTo(Object o) { + if (this.equals(o)) { + return 0; + } + int result = this.localNodeDescriptors.compareTo(((BgpLinkLSIdentifier) o).localNodeDescriptors); + if (result != 0) { + return result; + } else if (this.remoteNodeDescriptors.compareTo(((BgpLinkLSIdentifier) o).remoteNodeDescriptors) != 0) { + return this.remoteNodeDescriptors.compareTo(((BgpLinkLSIdentifier) o).remoteNodeDescriptors); + } else { + int countOtherSubTlv = ((BgpLinkLSIdentifier) o).linkDescriptor.size(); + int countObjSubTlv = linkDescriptor.size(); + if (countOtherSubTlv != countObjSubTlv) { + if (countOtherSubTlv > countObjSubTlv) { + return 1; + } else { + return -1; + } + } + ListIterator<BgpValueType> listIterator = linkDescriptor.listIterator(); + ListIterator<BgpValueType> listIteratorOther = ((BgpLinkLSIdentifier) o).linkDescriptor.listIterator(); + while (listIterator.hasNext()) { + BgpValueType tlv = listIterator.next(); + if (linkDescriptor.contains(tlv) && ((BgpLinkLSIdentifier) o).linkDescriptor.contains(tlv)) { + int res = linkDescriptor.get(linkDescriptor.indexOf(tlv)).compareTo( + ((BgpLinkLSIdentifier) o).linkDescriptor.get(((BgpLinkLSIdentifier) o).linkDescriptor + .indexOf(tlv))); + if (res != 0) { + return res; + } + } else { + return 1; + } + } + } + return 0; + } +} diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/linkstate/BgpLinkLsNlriVer4.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/linkstate/BgpLinkLsNlriVer4.java new file mode 100755 index 00000000..01d369e4 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/linkstate/BgpLinkLsNlriVer4.java @@ -0,0 +1,210 @@ +/*
+ * 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.bgpio.protocol.linkstate;
+
+import java.util.List;
+
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.onosproject.bgpio.exceptions.BgpParseException;
+import org.onosproject.bgpio.protocol.BgpLinkLsNlri;
+import org.onosproject.bgpio.protocol.NlriType;
+import org.onosproject.bgpio.protocol.linkstate.BgpNodeLSNlriVer4.ProtocolType;
+import org.onosproject.bgpio.types.BgpErrorType;
+import org.onosproject.bgpio.types.BgpValueType;
+import org.onosproject.bgpio.types.RouteDistinguisher;
+import org.onosproject.bgpio.util.Constants;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.google.common.base.MoreObjects;
+
+/**
+ * Implementation of Link LS NLRI.
+ */
+public class BgpLinkLsNlriVer4 implements BgpLinkLsNlri {
+
+ /*
+ * REFERENCE : draft-ietf-idr-ls-distribution-11
+ 0 1 2 3
+ 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ +-+-+-+-+-+-+-+-+
+ | Protocol-ID |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Identifier |
+ | (64 bits) |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ // Local Node Descriptors (variable) //
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ // Remote Node Descriptors (variable) //
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ // Link Descriptors (variable) //
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+
+ Figure : The Link NLRI format
+ */
+ private static final Logger log = LoggerFactory.getLogger(BgpLinkLsNlriVer4.class);
+ public static final int LINK_NLRITYPE = 2;
+
+ private BgpLinkLSIdentifier linkLSIdentifier;
+ private byte protocolId;
+ private long identifier;
+ private RouteDistinguisher routeDistinguisher;
+ private boolean isVpn;
+
+ /**
+ * Initialize fields.
+ */
+ public BgpLinkLsNlriVer4() {
+ this.protocolId = 0;
+ this.identifier = 0;
+ this.linkLSIdentifier = null;
+ this.routeDistinguisher = null;
+ this.isVpn = false;
+ }
+
+ /**
+ * Constructor to initialize parameters for BGP LinkLSNlri.
+ *
+ * @param protocolId protocol Id
+ * @param identifier field in BGP LinkLSNlri
+ * @param linkLSIdentifier link LS identifier
+ * @param routeDistinguisher route distinguisher from message
+ * @param isVpn vpn info availability in message
+ */
+ public BgpLinkLsNlriVer4(byte protocolId, long identifier, BgpLinkLSIdentifier linkLSIdentifier,
+ RouteDistinguisher routeDistinguisher, boolean isVpn) {
+ this.protocolId = protocolId;
+ this.identifier = identifier;
+ this.linkLSIdentifier = linkLSIdentifier;
+ this.routeDistinguisher = routeDistinguisher;
+ this.isVpn = isVpn;
+ }
+
+ /**
+ * Reads from channelBuffer and parses Link LS Nlri.
+ *
+ * @param cb ChannelBuffer
+ * @param afi Address Family Identifier
+ * @param safi Subsequent Address Family Identifier
+ * @return object of this class
+ * @throws BgpParseException while parsing Link LS NLRI
+ */
+ public static BgpLinkLsNlriVer4 read(ChannelBuffer cb, short afi, byte safi) throws BgpParseException {
+ boolean isVpn = false;
+ RouteDistinguisher routeDistinguisher = null;
+ if ((afi == Constants.AFI_VALUE) && (safi == Constants.VPN_SAFI_VALUE)) {
+ routeDistinguisher = new RouteDistinguisher();
+ routeDistinguisher = RouteDistinguisher.read(cb);
+ isVpn = true;
+ } else {
+ isVpn = false;
+ }
+ byte protocolId = cb.readByte();
+ long identifier = cb.readLong();
+
+ BgpLinkLSIdentifier linkLSIdentifier = new BgpLinkLSIdentifier();
+ linkLSIdentifier = BgpLinkLSIdentifier.parseLinkIdendifier(cb, protocolId);
+ return new BgpLinkLsNlriVer4(protocolId, identifier, linkLSIdentifier, routeDistinguisher, isVpn);
+ }
+
+ @Override
+ public NlriType getNlriType() {
+ return NlriType.LINK;
+ }
+
+ @Override
+ public long getIdentifier() {
+ return this.identifier;
+ }
+
+ /**
+ * Set the link LS identifier.
+ *
+ * @param linkLSIdentifier link LS identifier to set
+ */
+ public void setLinkLSIdentifier(BgpLinkLSIdentifier linkLSIdentifier) {
+ this.linkLSIdentifier = linkLSIdentifier;
+ }
+
+ @Override
+ public ProtocolType getProtocolId() throws BgpParseException {
+ switch (protocolId) {
+ case Constants.ISIS_LEVELONE:
+ return ProtocolType.ISIS_LEVEL_ONE;
+ case Constants.ISIS_LEVELTWO:
+ return ProtocolType.ISIS_LEVEL_TWO;
+ case Constants.OSPFV2:
+ return ProtocolType.OSPF_V2;
+ case Constants.DIRECT:
+ return ProtocolType.DIRECT;
+ case Constants.STATIC_CONFIGURATION:
+ return ProtocolType.STATIC_CONFIGURATION;
+ case Constants.OSPFV3:
+ return ProtocolType.OSPF_V3;
+ default:
+ throw new BgpParseException(BgpErrorType.UPDATE_MESSAGE_ERROR, (byte) 0, null);
+ }
+ }
+
+ @Override
+ public NodeDescriptors localNodeDescriptors() {
+ return this.linkLSIdentifier.localNodeDescriptors();
+ }
+
+ @Override
+ public NodeDescriptors remoteNodeDescriptors() {
+ return this.linkLSIdentifier.remoteNodeDescriptors();
+ }
+
+ /**
+ * Returns whether VPN is present or not.
+ *
+ * @return whether VPN is present or not
+ */
+ public boolean isVpnPresent() {
+ return this.isVpn;
+ }
+
+ @Override
+ public RouteDistinguisher getRouteDistinguisher() {
+ return this.routeDistinguisher;
+ }
+
+ /**
+ * Returns link identifier.
+ *
+ * @return link identifier
+ */
+ public BgpLinkLSIdentifier getLinkIdentifier() {
+ return this.linkLSIdentifier;
+ }
+
+ @Override
+ public List<BgpValueType> linkDescriptors() {
+ return this.linkLSIdentifier.linkDescriptors();
+ }
+
+ @Override
+ public String toString() {
+ return MoreObjects.toStringHelper(getClass())
+ .omitNullValues()
+ .add("protocolId", protocolId)
+ .add("identifier", identifier)
+ .add("RouteDistinguisher ", routeDistinguisher)
+ .add("linkLSIdentifier", linkLSIdentifier)
+ .toString();
+ }
+}
diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/linkstate/BgpNodeLSIdentifier.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/linkstate/BgpNodeLSIdentifier.java new file mode 100644 index 00000000..6c2c96d9 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/linkstate/BgpNodeLSIdentifier.java @@ -0,0 +1,122 @@ +/* + * 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.bgpio.protocol.linkstate; + +import java.util.Objects; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.types.BgpErrorType; +import org.onosproject.bgpio.util.Constants; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.common.base.MoreObjects; + +/** + * Implementation of Node Identifier which includes local node descriptor/remote node descriptors. + */ +public class BgpNodeLSIdentifier implements Comparable<Object> { + + private static final Logger log = LoggerFactory.getLogger(BgpNodeLSIdentifier.class); + private NodeDescriptors nodeDescriptors; + + /** + * Resets fields. + */ + public BgpNodeLSIdentifier() { + this.nodeDescriptors = null; + } + + /** + * Constructor to initialize fields. + * + * @param nodeDescriptors local/remote node descriptor + */ + public BgpNodeLSIdentifier(NodeDescriptors nodeDescriptors) { + this.nodeDescriptors = nodeDescriptors; + } + + /** + * Parse local node descriptors. + * + * @param cb ChannelBuffer + * @param protocolId protocol identifier + * @return object of this BGPNodeLSIdentifier + * @throws BgpParseException while parsing local node descriptors + */ + public static BgpNodeLSIdentifier parseLocalNodeDescriptors(ChannelBuffer cb, byte protocolId) + throws BgpParseException { + log.debug("parse Local node descriptor"); + ChannelBuffer tempBuf = cb.copy(); + short type = cb.readShort(); + short length = cb.readShort(); + if (cb.readableBytes() < length) { + throw new BgpParseException(BgpErrorType.UPDATE_MESSAGE_ERROR, BgpErrorType.OPTIONAL_ATTRIBUTE_ERROR, + tempBuf.readBytes(cb.readableBytes() + Constants.TYPE_AND_LEN)); + } + NodeDescriptors nodeDescriptors = new NodeDescriptors(); + ChannelBuffer tempCb = cb.readBytes(length); + + if (type == NodeDescriptors.LOCAL_NODE_DES_TYPE) { + nodeDescriptors = NodeDescriptors.read(tempCb, length, type, protocolId); + } else { + throw new BgpParseException(BgpErrorType.UPDATE_MESSAGE_ERROR, BgpErrorType.MALFORMED_ATTRIBUTE_LIST, null); + } + return new BgpNodeLSIdentifier(nodeDescriptors); + } + + /** + * Returns node descriptors. + * + * @return node descriptors + */ + public NodeDescriptors getNodedescriptors() { + return this.nodeDescriptors; + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + if (obj instanceof BgpNodeLSIdentifier) { + BgpNodeLSIdentifier other = (BgpNodeLSIdentifier) obj; + return Objects.equals(nodeDescriptors, other.nodeDescriptors); + } + return false; + } + + @Override + public int hashCode() { + return Objects.hash(nodeDescriptors); + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()) + .add("NodeDescriptors", nodeDescriptors) + .toString(); + } + + @Override + public int compareTo(Object o) { + if (this.equals(o)) { + return 0; + } + return this.nodeDescriptors.compareTo(((BgpNodeLSIdentifier) o).nodeDescriptors); + } +} diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/linkstate/BgpNodeLSNlriVer4.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/linkstate/BgpNodeLSNlriVer4.java new file mode 100644 index 00000000..b27096cf --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/linkstate/BgpNodeLSNlriVer4.java @@ -0,0 +1,212 @@ +/* + * 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.bgpio.protocol.linkstate; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.protocol.BgpNodeLSNlri; +import org.onosproject.bgpio.protocol.NlriType; +import org.onosproject.bgpio.types.BgpErrorType; +import org.onosproject.bgpio.types.RouteDistinguisher; +import org.onosproject.bgpio.util.Constants; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.common.base.MoreObjects; + +/** + * Implementation of Node LS NLRI. + */ +public class BgpNodeLSNlriVer4 implements BgpNodeLSNlri { + + /* + *REFERENCE : draft-ietf-idr-ls-distribution-11 + 0 1 2 3 + 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + +-+-+-+-+-+-+-+-+ + | Protocol-ID | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | Identifier | + | (64 bits) | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + // Local Node Descriptors (variable) // + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + + Figure : The Node NLRI format + */ + + protected static final Logger log = LoggerFactory.getLogger(BgpNodeLSNlriVer4.class); + + public static final int NODE_NLRITYPE = 1; + public static final int IDENTIFIER_LENGTH = 16; + private long identifier; + private byte protocolId; + private BgpNodeLSIdentifier localNodeDescriptors; + private RouteDistinguisher routeDistinguisher; + private boolean isVpn; + + /** + * Enum to provide PROTOCOLTYPE. + */ + public enum ProtocolType { + ISIS_LEVEL_ONE(1), ISIS_LEVEL_TWO(2), OSPF_V2(3), DIRECT(4), STATIC_CONFIGURATION(5), OSPF_V3(6); + int value; + + /** + * Assign val with the value as the protocol type. + * + * @param val protocol type + */ + ProtocolType(int val) { + value = val; + } + + /** + * Returns value of protocol type. + * + * @return protocol type + */ + public byte getType() { + return (byte) value; + } + } + + /** + * Reset fields. + */ + public BgpNodeLSNlriVer4() { + this.identifier = 0; + this.protocolId = 0; + this.localNodeDescriptors = null; + this.routeDistinguisher = null; + this.isVpn = false; + } + + /** + * Constructors to initialize its parameters. + * + * @param identifier of LinkState Nlri + * @param protocolId of LinkState Nlri + * @param localNodeDescriptors local node descriptors + * @param isVpn true if VPN info is present + * @param routeDistinguisher unique for each VPN + */ + public BgpNodeLSNlriVer4(long identifier, byte protocolId, BgpNodeLSIdentifier localNodeDescriptors, boolean isVpn, + RouteDistinguisher routeDistinguisher) { + this.identifier = identifier; + this.protocolId = protocolId; + this.localNodeDescriptors = localNodeDescriptors; + this.routeDistinguisher = routeDistinguisher; + this.isVpn = isVpn; + } + + /** + * Reads from channelBuffer and parses Node LS Nlri. + * + * @param cb ChannelBuffer + * @param afi Address Family Identifier + * @param safi Subsequent Address Family Identifier + * @return object of this class + * @throws BgpParseException while parsing node descriptors + */ + public static BgpNodeLSNlriVer4 read(ChannelBuffer cb, short afi, byte safi) throws BgpParseException { + boolean isVpn = false; + RouteDistinguisher routeDistinguisher = null; + if ((afi == Constants.AFI_VALUE) && (safi == Constants.VPN_SAFI_VALUE)) { + routeDistinguisher = new RouteDistinguisher(); + routeDistinguisher = RouteDistinguisher.read(cb); + isVpn = true; + } else { + isVpn = false; + } + byte protocolId = cb.readByte(); + long identifier = cb.readLong(); + + // Parse Local Node Descriptors + BgpNodeLSIdentifier localNodeDescriptors = new BgpNodeLSIdentifier(); + localNodeDescriptors = BgpNodeLSIdentifier.parseLocalNodeDescriptors(cb, protocolId); + return new BgpNodeLSNlriVer4(identifier, protocolId, localNodeDescriptors, isVpn, routeDistinguisher); + } + + @Override + public NlriType getNlriType() { + return NlriType.NODE; + } + + @Override + public BgpNodeLSIdentifier getLocalNodeDescriptors() { + return this.localNodeDescriptors; + } + + /** + * Returns whether VPN is present or not. + * + * @return whether VPN is present or not + */ + public boolean isVpnPresent() { + return this.isVpn; + } + + @Override + public RouteDistinguisher getRouteDistinguisher() { + return this.routeDistinguisher; + } + + @Override + public long getIdentifier() { + return this.identifier; + } + + /** + * Set the node LS identifier. + * + * @param localNodeDescriptors node LS identifier to set + */ + public void setNodeLSIdentifier(BgpNodeLSIdentifier localNodeDescriptors) { + this.localNodeDescriptors = localNodeDescriptors; + } + + @Override + public ProtocolType getProtocolId() throws BgpParseException { + switch (protocolId) { + case Constants.ISIS_LEVELONE: + return ProtocolType.ISIS_LEVEL_ONE; + case Constants.ISIS_LEVELTWO: + return ProtocolType.ISIS_LEVEL_TWO; + case Constants.OSPFV2: + return ProtocolType.OSPF_V2; + case Constants.DIRECT: + return ProtocolType.DIRECT; + case Constants.STATIC_CONFIGURATION: + return ProtocolType.STATIC_CONFIGURATION; + case Constants.OSPFV3: + return ProtocolType.OSPF_V3; + default: + throw new BgpParseException(BgpErrorType.UPDATE_MESSAGE_ERROR, (byte) 0, null); + } + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()) + .omitNullValues() + .add("protocolId", protocolId) + .add("identifier", identifier) + .add("RouteDistinguisher ", routeDistinguisher) + .add("localNodeDescriptors", localNodeDescriptors) + .toString(); + } +} diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/linkstate/BgpPrefixIPv4LSNlriVer4.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/linkstate/BgpPrefixIPv4LSNlriVer4.java new file mode 100644 index 00000000..49cb74bd --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/linkstate/BgpPrefixIPv4LSNlriVer4.java @@ -0,0 +1,205 @@ +/* + * 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.bgpio.protocol.linkstate; + +import java.util.List; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.protocol.BgpPrefixLSNlri; +import org.onosproject.bgpio.protocol.NlriType; +import org.onosproject.bgpio.protocol.linkstate.BgpNodeLSNlriVer4.ProtocolType; +import org.onosproject.bgpio.types.BgpValueType; +import org.onosproject.bgpio.types.RouteDistinguisher; +import org.onosproject.bgpio.util.Constants; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.common.base.MoreObjects; + +/** + * Implementation of Prefix IPV4 LS NLRI. + */ +public class BgpPrefixIPv4LSNlriVer4 implements BgpPrefixLSNlri { + + /* + * REFERENCE : draft-ietf-idr-ls-distribution-11 + * 0 1 2 3 + 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + +-+-+-+-+-+-+-+-+ + | Protocol-ID | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | Identifier | + | (64 bits) | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + // Local Node Descriptor (variable) // + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + // Prefix Descriptors (variable) // + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + + Figure : The IPv4/IPv6 Topology Prefix NLRI format + */ + + protected static final Logger log = LoggerFactory.getLogger(BgpPrefixIPv4LSNlriVer4.class); + + public static final int PREFIX_IPV4_NLRITYPE = 3; + public static final int IDENTIFIER_LENGTH = 16; + private long identifier; + private byte protocolId; + private RouteDistinguisher routeDistinguisher; + private boolean isVpn; + private BgpPrefixLSIdentifier bgpPrefixLSIdentifier; + + /** + * Resets parameters. + */ + public BgpPrefixIPv4LSNlriVer4() { + this.identifier = 0; + this.protocolId = 0; + this.bgpPrefixLSIdentifier = null; + this.routeDistinguisher = null; + this.isVpn = false; + } + + /** + * Constructor to initialize parameters for BGP PrefixLSNlri. + * + * @param identifier field in BGP PrefixLSNlri + * @param protocolId protocol Id + * @param bgpPrefixLSIdentifier prefix LS Identifier + * @param routeDistinguisher RouteDistinguisher + * @param isVpn vpn availability in message + */ + public BgpPrefixIPv4LSNlriVer4(long identifier, byte protocolId, BgpPrefixLSIdentifier bgpPrefixLSIdentifier, + RouteDistinguisher routeDistinguisher, boolean isVpn) { + this.identifier = identifier; + this.protocolId = protocolId; + this.bgpPrefixLSIdentifier = bgpPrefixLSIdentifier; + this.routeDistinguisher = routeDistinguisher; + this.isVpn = isVpn; + } + + /** + * Reads from channelBuffer and parses Prefix LS Nlri. + * + * @param cb ChannelBuffer + * @param afi Address family identifier + * @param safi Subsequent address family identifier + * @return object of BGPPrefixIPv4LSNlriVer4 + * @throws BgpParseException while parsing Prefix LS Nlri + */ + public static BgpPrefixIPv4LSNlriVer4 read(ChannelBuffer cb, short afi, byte safi) throws BgpParseException { + + boolean isVpn = false; + RouteDistinguisher routeDistinguisher = null; + if ((afi == Constants.AFI_VALUE) && (safi == Constants.VPN_SAFI_VALUE)) { + routeDistinguisher = new RouteDistinguisher(); + routeDistinguisher = RouteDistinguisher.read(cb); + isVpn = true; + } else { + isVpn = false; + } + byte protocolId = cb.readByte(); + long identifier = cb.readLong(); + + BgpPrefixLSIdentifier bgpPrefixLSIdentifier = new BgpPrefixLSIdentifier(); + bgpPrefixLSIdentifier = BgpPrefixLSIdentifier.parsePrefixIdendifier(cb, protocolId); + return new BgpPrefixIPv4LSNlriVer4(identifier, protocolId, bgpPrefixLSIdentifier, routeDistinguisher, isVpn); + } + + @Override + public NlriType getNlriType() { + return NlriType.PREFIX_IPV4; + } + + @Override + public NodeDescriptors getLocalNodeDescriptors() { + return this.bgpPrefixLSIdentifier.getLocalNodeDescriptors(); + } + + @Override + public long getIdentifier() { + return this.identifier; + } + + /** + * Set the prefix LS identifier. + * + * @param bgpPrefixLSIdentifier prefix identifier to set + */ + public void setPrefixLSIdentifier(BgpPrefixLSIdentifier bgpPrefixLSIdentifier) { + this.bgpPrefixLSIdentifier = bgpPrefixLSIdentifier; + } + + @Override + public ProtocolType getProtocolId() throws BgpParseException { + switch (protocolId) { + case Constants.ISIS_LEVELONE: + return ProtocolType.ISIS_LEVEL_ONE; + case Constants.ISIS_LEVELTWO: + return ProtocolType.ISIS_LEVEL_TWO; + case Constants.OSPFV2: + return ProtocolType.OSPF_V2; + case Constants.DIRECT: + return ProtocolType.DIRECT; + case Constants.STATIC_CONFIGURATION: + return ProtocolType.STATIC_CONFIGURATION; + case Constants.OSPFV3: + return ProtocolType.OSPF_V3; + default: + throw new BgpParseException("protocol id not valid"); + } + } + + /** + * Returns whether VPN is present or not. + * + * @return whether VPN is present or not + */ + public boolean isVpnPresent() { + return this.isVpn; + } + + /** + * Returns Prefix Identifier. + * + * @return Prefix Identifier + */ + public BgpPrefixLSIdentifier getPrefixIdentifier() { + return this.bgpPrefixLSIdentifier; + } + + @Override + public RouteDistinguisher getRouteDistinguisher() { + return this.routeDistinguisher; + } + + @Override + public List<BgpValueType> getPrefixdescriptor() { + return this.bgpPrefixLSIdentifier.getPrefixdescriptor(); + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()) + .omitNullValues() + .add("protocolId", protocolId) + .add("identifier", identifier) + .add("RouteDistinguisher ", routeDistinguisher) + .add("bgpPrefixLSIdentifier", bgpPrefixLSIdentifier) + .toString(); + } +} diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/linkstate/BgpPrefixLSIdentifier.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/linkstate/BgpPrefixLSIdentifier.java new file mode 100644 index 00000000..22e68917 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/linkstate/BgpPrefixLSIdentifier.java @@ -0,0 +1,272 @@ +/* + * 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.bgpio.protocol.linkstate; + +import java.util.Iterator; +import java.util.LinkedList; +import java.util.List; +import java.util.ListIterator; +import java.util.Objects; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.types.BgpErrorType; +import org.onosproject.bgpio.types.BgpValueType; +import org.onosproject.bgpio.types.IPReachabilityInformationTlv; +import org.onosproject.bgpio.types.OSPFRouteTypeTlv; +import org.onosproject.bgpio.types.attr.BgpAttrNodeMultiTopologyId; +import org.onosproject.bgpio.util.UnSupportedAttribute; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.common.base.MoreObjects; + +/** + * Provides Implementation of Local node descriptors and prefix descriptors. + */ +public class BgpPrefixLSIdentifier implements Comparable<Object> { + + protected static final Logger log = LoggerFactory.getLogger(BgpPrefixLSIdentifier.class); + public static final int TYPE_AND_LEN = 4; + private NodeDescriptors localNodeDescriptors; + private List<BgpValueType> prefixDescriptor; + + /** + * Resets parameters. + */ + public BgpPrefixLSIdentifier() { + this.localNodeDescriptors = null; + this.prefixDescriptor = null; + } + + /** + * Constructor to initialize parameters. + * + * @param localNodeDescriptors Local node descriptors + * @param prefixDescriptor Prefix Descriptors + */ + public BgpPrefixLSIdentifier(NodeDescriptors localNodeDescriptors, List<BgpValueType> prefixDescriptor) { + this.localNodeDescriptors = localNodeDescriptors; + this.prefixDescriptor = prefixDescriptor; + } + + /** + * Reads the channel buffer and parses Prefix Identifier. + * + * @param cb ChannelBuffer + * @param protocolId protocol ID + * @return object of this class + * @throws BgpParseException while parsing Prefix Identifier + */ + public static BgpPrefixLSIdentifier parsePrefixIdendifier(ChannelBuffer cb, byte protocolId) + throws BgpParseException { + //Parse Local Node descriptor + NodeDescriptors localNodeDescriptors = new NodeDescriptors(); + localNodeDescriptors = parseLocalNodeDescriptors(cb, protocolId); + + //Parse Prefix descriptor + List<BgpValueType> prefixDescriptor = new LinkedList<>(); + prefixDescriptor = parsePrefixDescriptors(cb); + return new BgpPrefixLSIdentifier(localNodeDescriptors, prefixDescriptor); + } + + /** + * Parse local node descriptors. + * + * @param cb ChannelBuffer + * @param protocolId protocol identifier + * @return LocalNodeDescriptors + * @throws BgpParseException while parsing local node descriptors + */ + public static NodeDescriptors parseLocalNodeDescriptors(ChannelBuffer cb, byte protocolId) + throws BgpParseException { + ChannelBuffer tempBuf = cb.copy(); + short type = cb.readShort(); + short length = cb.readShort(); + if (cb.readableBytes() < length) { + //length + 4 implies data contains type, length and value + throw new BgpParseException(BgpErrorType.UPDATE_MESSAGE_ERROR, BgpErrorType.OPTIONAL_ATTRIBUTE_ERROR, + tempBuf.readBytes(cb.readableBytes() + TYPE_AND_LEN)); + } + NodeDescriptors localNodeDescriptors = new NodeDescriptors(); + ChannelBuffer tempCb = cb.readBytes(length); + + if (type == NodeDescriptors.LOCAL_NODE_DES_TYPE) { + localNodeDescriptors = NodeDescriptors.read(tempCb, length, type, protocolId); + } else { + throw new BgpParseException(BgpErrorType.UPDATE_MESSAGE_ERROR, + BgpErrorType.MALFORMED_ATTRIBUTE_LIST, null); + } + return localNodeDescriptors; + } + + /** + * Parse list of prefix descriptors. + * + * @param cb ChannelBuffer + * @return list of prefix descriptors + * @throws BgpParseException while parsing list of prefix descriptors + */ + public static List<BgpValueType> parsePrefixDescriptors(ChannelBuffer cb) throws BgpParseException { + LinkedList<BgpValueType> prefixDescriptor = new LinkedList<>(); + BgpValueType tlv = null; + boolean isIpReachInfo = false; + ChannelBuffer tempCb; + int count = 0; + + while (cb.readableBytes() > 0) { + ChannelBuffer tempBuf = cb.copy(); + short type = cb.readShort(); + short length = cb.readShort(); + if (cb.readableBytes() < length) { + //length + 4 implies data contains type, length and value + throw new BgpParseException(BgpErrorType.UPDATE_MESSAGE_ERROR, BgpErrorType.OPTIONAL_ATTRIBUTE_ERROR, + tempBuf.readBytes(cb.readableBytes() + TYPE_AND_LEN)); + } + tempCb = cb.readBytes(length); + switch (type) { + case OSPFRouteTypeTlv.TYPE: + tlv = OSPFRouteTypeTlv.read(tempCb); + break; + case IPReachabilityInformationTlv.TYPE: + tlv = IPReachabilityInformationTlv.read(tempCb, length); + isIpReachInfo = true; + break; + case BgpAttrNodeMultiTopologyId.ATTRNODE_MULTITOPOLOGY: + tlv = BgpAttrNodeMultiTopologyId.read(tempCb); + count = count + 1; + if (count > 1) { + //length + 4 implies data contains type, length and value + throw new BgpParseException(BgpErrorType.UPDATE_MESSAGE_ERROR, + BgpErrorType.OPTIONAL_ATTRIBUTE_ERROR, tempBuf.readBytes(length + TYPE_AND_LEN)); + } + break; + default: + UnSupportedAttribute.skipBytes(tempCb, length); + } + prefixDescriptor.add(tlv); + } + + if (!isIpReachInfo) { + throw new BgpParseException(BgpErrorType.UPDATE_MESSAGE_ERROR, BgpErrorType.OPTIONAL_ATTRIBUTE_ERROR, + null); + } + return prefixDescriptor; + } + + /** + * Returns local node descriptors. + * + * @return local node descriptors + */ + public NodeDescriptors getLocalNodeDescriptors() { + return this.localNodeDescriptors; + } + + /** + * Returns Prefix descriptors. + * + * @return Prefix descriptors + */ + public List<BgpValueType> getPrefixdescriptor() { + return this.prefixDescriptor; + } + + @Override + public int hashCode() { + return Objects.hash(prefixDescriptor.hashCode(), localNodeDescriptors); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + + if (obj instanceof BgpPrefixLSIdentifier) { + int countObjSubTlv = 0; + int countOtherSubTlv = 0; + boolean isCommonSubTlv = true; + BgpPrefixLSIdentifier other = (BgpPrefixLSIdentifier) obj; + + Iterator<BgpValueType> objListIterator = other.prefixDescriptor.iterator(); + countOtherSubTlv = other.prefixDescriptor.size(); + countObjSubTlv = prefixDescriptor.size(); + if (countObjSubTlv != countOtherSubTlv) { + return false; + } else { + while (objListIterator.hasNext() && isCommonSubTlv) { + BgpValueType subTlv = objListIterator.next(); + if (prefixDescriptor.contains(subTlv) && other.prefixDescriptor.contains(subTlv)) { + isCommonSubTlv = Objects.equals(prefixDescriptor.get(prefixDescriptor.indexOf(subTlv)), + other.prefixDescriptor.get(other.prefixDescriptor.indexOf(subTlv))); + } else { + isCommonSubTlv = false; + } + } + return isCommonSubTlv && Objects.equals(this.localNodeDescriptors, other.localNodeDescriptors); + } + } + return false; + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()) + .add("localNodeDescriptors", localNodeDescriptors) + .add("prefixDescriptor", prefixDescriptor) + .toString(); + } + + @Override + public int compareTo(Object o) { + if (this.equals(o)) { + return 0; + } + int result = this.localNodeDescriptors.compareTo(((BgpPrefixLSIdentifier) o).localNodeDescriptors); + if (result != 0) { + return result; + } else { + int countOtherSubTlv = ((BgpPrefixLSIdentifier) o).prefixDescriptor.size(); + int countObjSubTlv = prefixDescriptor.size(); + if (countOtherSubTlv != countObjSubTlv) { + if (countOtherSubTlv > countObjSubTlv) { + return 1; + } else { + return -1; + } + } + + ListIterator<BgpValueType> listIterator = prefixDescriptor.listIterator(); + ListIterator<BgpValueType> listIteratorOther = ((BgpPrefixLSIdentifier) o).prefixDescriptor.listIterator(); + while (listIterator.hasNext()) { + BgpValueType tlv = listIterator.next(); + if (prefixDescriptor.contains(tlv) && ((BgpPrefixLSIdentifier) o).prefixDescriptor.contains(tlv)) { + int res = prefixDescriptor.get(prefixDescriptor.indexOf(tlv)).compareTo( + ((BgpPrefixLSIdentifier) o).prefixDescriptor + .get(((BgpPrefixLSIdentifier) o).prefixDescriptor.indexOf(tlv))); + if (res != 0) { + return res; + } + } else { + return 1; + } + } + } + return 0; + } +} diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/linkstate/NodeDescriptors.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/linkstate/NodeDescriptors.java new file mode 100644 index 00000000..f91ac260 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/linkstate/NodeDescriptors.java @@ -0,0 +1,264 @@ +/* + * 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.bgpio.protocol.linkstate; + +import java.util.Iterator; +import java.util.LinkedList; +import java.util.List; +import java.util.ListIterator; +import java.util.Objects; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.types.AreaIDTlv; +import org.onosproject.bgpio.types.AutonomousSystemTlv; +import org.onosproject.bgpio.types.BgpErrorType; +import org.onosproject.bgpio.types.BgpLSIdentifierTlv; +import org.onosproject.bgpio.types.BgpValueType; +import org.onosproject.bgpio.types.IsIsNonPseudonode; +import org.onosproject.bgpio.types.IsIsPseudonode; +import org.onosproject.bgpio.types.OSPFNonPseudonode; +import org.onosproject.bgpio.types.OSPFPseudonode; +import org.onosproject.bgpio.util.UnSupportedAttribute; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.common.base.MoreObjects; + +/** + * Provides Local and Remote NodeDescriptors which contains Node Descriptor Sub-TLVs. + */ +public class NodeDescriptors { + + /* + *Reference :draft-ietf-idr-ls-distribution-11 + 0 1 2 3 + 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | Type | Length | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | | + // Node Descriptor Sub-TLVs (variable) // + | | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + + Figure : Local or Remote Node Descriptors TLV format + */ + + private static final Logger log = LoggerFactory.getLogger(NodeDescriptors.class); + + public static final short LOCAL_NODE_DES_TYPE = 256; + public static final short REMOTE_NODE_DES_TYPE = 257; + public static final short IGP_ROUTERID_TYPE = 515; + public static final short IS_IS_LEVEL_1_PROTOCOL_ID = 1; + public static final short IS_IS_LEVEL_2_PROTOCOL_ID = 2; + public static final short OSPF_V2_PROTOCOL_ID = 3; + public static final short OSPF_V3_PROTOCOL_ID = 6; + public static final int TYPE_AND_LEN = 4; + public static final int ISISNONPSEUDONODE_LEN = 6; + public static final int ISISPSEUDONODE_LEN = 7; + public static final int OSPFNONPSEUDONODE_LEN = 4; + public static final int OSPFPSEUDONODE_LEN = 8; + private List<BgpValueType> subTlvs; + private short deslength; + private short desType; + + /** + * Resets parameters. + */ + public NodeDescriptors() { + this.subTlvs = null; + this.deslength = 0; + this.desType = 0; + } + + /** + * Constructor to initialize parameters. + * + * @param subTlvs list of subTlvs + * @param deslength Descriptors length + * @param desType local node descriptor or remote node descriptor type + */ + public NodeDescriptors(List<BgpValueType> subTlvs, short deslength, short desType) { + this.subTlvs = subTlvs; + this.deslength = deslength; + this.desType = desType; + } + + /** + * Returns list of subTlvs. + * + * @return subTlvs list of subTlvs + */ + public List<BgpValueType> getSubTlvs() { + return subTlvs; + } + + @Override + public int hashCode() { + return Objects.hash(subTlvs.hashCode()); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + + if (obj instanceof NodeDescriptors) { + int countObjSubTlv = 0; + int countOtherSubTlv = 0; + boolean isCommonSubTlv = true; + NodeDescriptors other = (NodeDescriptors) obj; + Iterator<BgpValueType> objListIterator = other.subTlvs.iterator(); + countOtherSubTlv = other.subTlvs.size(); + countObjSubTlv = subTlvs.size(); + if (countObjSubTlv != countOtherSubTlv) { + return false; + } else { + while (objListIterator.hasNext() && isCommonSubTlv) { + BgpValueType subTlv = objListIterator.next(); + if (subTlvs.contains(subTlv) && other.subTlvs.contains(subTlv)) { + isCommonSubTlv = Objects.equals(subTlvs.get(subTlvs.indexOf(subTlv)), + other.subTlvs.get(other.subTlvs.indexOf(subTlv))); + } else { + isCommonSubTlv = false; + } + } + return isCommonSubTlv; + } + } + return false; + } + + /** + * Reads node descriptors Sub-TLVs. + * + * @param cb ChannelBuffer + * @param desLength node descriptor length + * @param desType local node descriptor or remote node descriptor type + * @param protocolId protocol ID + * @return object of NodeDescriptors + * @throws BgpParseException while parsing node descriptors + */ + public static NodeDescriptors read(ChannelBuffer cb, short desLength, short desType, byte protocolId) + throws BgpParseException { + log.debug("Read NodeDescriptor"); + List<BgpValueType> subTlvs = new LinkedList<>(); + BgpValueType tlv = null; + + while (cb.readableBytes() > 0) { + ChannelBuffer tempBuf = cb.copy(); + short type = cb.readShort(); + short length = cb.readShort(); + if (cb.readableBytes() < length) { + throw new BgpParseException(BgpErrorType.UPDATE_MESSAGE_ERROR, BgpErrorType.OPTIONAL_ATTRIBUTE_ERROR, + tempBuf.readBytes(cb.readableBytes() + TYPE_AND_LEN)); + } + ChannelBuffer tempCb = cb.readBytes(length); + switch (type) { + case AutonomousSystemTlv.TYPE: + tlv = AutonomousSystemTlv.read(tempCb); + break; + case BgpLSIdentifierTlv.TYPE: + tlv = BgpLSIdentifierTlv.read(tempCb); + break; + case AreaIDTlv.TYPE: + tlv = AreaIDTlv.read(tempCb); + break; + case IGP_ROUTERID_TYPE: + if (protocolId == IS_IS_LEVEL_1_PROTOCOL_ID || protocolId == IS_IS_LEVEL_2_PROTOCOL_ID) { + if (length == ISISNONPSEUDONODE_LEN) { + tlv = IsIsNonPseudonode.read(tempCb); + } else if (length == ISISPSEUDONODE_LEN) { + tlv = IsIsPseudonode.read(tempCb); + } + } else if (protocolId == OSPF_V2_PROTOCOL_ID || protocolId == OSPF_V3_PROTOCOL_ID) { + if (length == OSPFNONPSEUDONODE_LEN) { + tlv = OSPFNonPseudonode.read(tempCb); + } else if (length == OSPFPSEUDONODE_LEN) { + tlv = OSPFPseudonode.read(tempCb); + } + } + break; + default: + UnSupportedAttribute.skipBytes(tempCb, length); + } + subTlvs.add(tlv); + } + return new NodeDescriptors(subTlvs, desLength, desType); + } + + /** + * Returns node descriptors length. + * + * @return node descriptors length + */ + public short getLength() { + return this.deslength; + } + + /** + * Returns node descriptors type. + * + * @return node descriptors type + */ + public short getType() { + return this.desType; + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()) + .add("desType", desType) + .add("deslength", deslength) + .add("subTlvs", subTlvs) + .toString(); + } + + public int compareTo(Object o) { + if (this.equals(o)) { + return 0; + } + ListIterator<BgpValueType> listIterator = subTlvs.listIterator(); + ListIterator<BgpValueType> listIteratorOther = ((NodeDescriptors) o).subTlvs.listIterator(); + int countOtherSubTlv = ((NodeDescriptors) o).subTlvs.size(); + int countObjSubTlv = subTlvs.size(); + if (countOtherSubTlv != countObjSubTlv) { + if (countOtherSubTlv > countObjSubTlv) { + return 1; + } else { + return -1; + } + } else { + while (listIterator.hasNext()) { + BgpValueType tlv = listIterator.next(); + log.debug("NodeDescriptor compare subtlv's"); + if (subTlvs.contains(tlv) && ((NodeDescriptors) o).subTlvs.contains(tlv)) { + int result = subTlvs.get(subTlvs.indexOf(tlv)).compareTo( + ((NodeDescriptors) o).subTlvs.get(((NodeDescriptors) o).subTlvs.indexOf(tlv))); + if (result != 0) { + return result; + } + } else { + return 1; + } + } + } + return 0; + } +} diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/linkstate/PathAttrNlriDetails.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/linkstate/PathAttrNlriDetails.java new file mode 100755 index 00000000..9578ccfe --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/linkstate/PathAttrNlriDetails.java @@ -0,0 +1,135 @@ +/* + * 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.bgpio.protocol.linkstate; + +import java.util.Iterator; +import java.util.List; +import java.util.Objects; + +import org.onosproject.bgpio.protocol.linkstate.BgpNodeLSNlriVer4.ProtocolType; +import org.onosproject.bgpio.types.BgpValueType; + +import com.google.common.base.MoreObjects; + +/** + * This Class stores path Attributes, protocol ID and Identifier of LinkState NLRI. + */ +public class PathAttrNlriDetails { + private List<BgpValueType> pathAttributes; + private ProtocolType protocolID; + private long identifier; + + /** + * Sets path attribute with specified path attribute. + * + * @param pathAttributes in update message + */ + public void setPathAttribute(List<BgpValueType> pathAttributes) { + this.pathAttributes = pathAttributes; + } + + /** + * Returns path attributes. + * + * @return path attributes + */ + public List<BgpValueType> pathAttributes() { + return this.pathAttributes; + } + + /** + * Sets protocolID with specified protocolID. + * + * @param protocolID in linkstate nlri + */ + public void setProtocolID(ProtocolType protocolID) { + this.protocolID = protocolID; + } + + /** + * Returns protocolID. + * + * @return protocolID + */ + public ProtocolType protocolID() { + return this.protocolID; + } + + /** + * Sets identifier with specified identifier. + * + * @param identifier in linkstate nlri + */ + public void setIdentifier(long identifier) { + this.identifier = identifier; + } + + /** + * Returns Identifier. + * + * @return Identifier + */ + public long identifier() { + return this.identifier; + } + + @Override + public int hashCode() { + return Objects.hash(pathAttributes, protocolID, identifier); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + + if (obj instanceof PathAttrNlriDetails) { + int countObjSubTlv = 0; + int countOtherSubTlv = 0; + boolean isCommonSubTlv = true; + PathAttrNlriDetails other = (PathAttrNlriDetails) obj; + Iterator<BgpValueType> objListIterator = other.pathAttributes.iterator(); + countOtherSubTlv = other.pathAttributes.size(); + countObjSubTlv = pathAttributes.size(); + if (countObjSubTlv != countOtherSubTlv) { + return false; + } else { + while (objListIterator.hasNext() && isCommonSubTlv) { + BgpValueType subTlv = objListIterator.next(); + if (pathAttributes.contains(subTlv) && other.pathAttributes.contains(subTlv)) { + isCommonSubTlv = Objects.equals(pathAttributes.get(pathAttributes.indexOf(subTlv)), + other.pathAttributes.get(other.pathAttributes.indexOf(subTlv))); + } else { + isCommonSubTlv = false; + } + } + return isCommonSubTlv && Objects.equals(identifier, other.identifier) + && Objects.equals(protocolID, other.protocolID); + } + } + return false; + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()) + .add("identifier", identifier) + .add("protocolID", protocolID) + .add("pathAttributes", pathAttributes) + .toString(); + } +} diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/linkstate/PathAttrNlriDetailsLocalRib.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/linkstate/PathAttrNlriDetailsLocalRib.java new file mode 100755 index 00000000..4172ae46 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/linkstate/PathAttrNlriDetailsLocalRib.java @@ -0,0 +1,122 @@ +/* + * 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.bgpio.protocol.linkstate; + +import java.util.Objects; + +import org.onlab.packet.IpAddress; +import com.google.common.base.MoreObjects; + +/** + * This Class stores path Attributes, protocol ID and Identifier of LinkState nlri. + */ +public class PathAttrNlriDetailsLocalRib { + + private IpAddress localRibIpAddress; + private long localRibAsNum; + private int localRibIdentifier; + private boolean isLocalRibIbgpSession; + private PathAttrNlriDetails localRibNlridetails; + + /** + * Constructor to initialize parameter. + * + * @param localRibIpAddress peer ip address + * @param localRibIdentifier peer identifier + * @param localRibAsNum peer As number + * @param isLocalRibIbgpSession flag to indicate is Ibgp session + * @param localRibNlridetails Nlri details + * + */ + public PathAttrNlriDetailsLocalRib(IpAddress localRibIpAddress, int localRibIdentifier, long localRibAsNum, + boolean isLocalRibIbgpSession, PathAttrNlriDetails localRibNlridetails) { + this.localRibIpAddress = localRibIpAddress; + this.localRibAsNum = localRibAsNum; + this.localRibIdentifier = localRibIdentifier; + this.isLocalRibIbgpSession = isLocalRibIbgpSession; + this.localRibNlridetails = localRibNlridetails; + } + + /** + * Gets the Ipaddress updated in local rib. + * + * @return localRibIpAddress ip address + */ + public IpAddress localRibIpAddress() { + return localRibIpAddress; + } + + /** + * Gets the autonomous system number updated in local rib. + * + * @return localRibAsNum autonomous system number + */ + public long localRibAsNum() { + return localRibAsNum; + } + + /** + * Gets the indetifier updated in local rib. + * + * @return localRibIdentifier identifier + */ + public int localRibIdentifier() { + return localRibIdentifier; + } + + /** + * Gets the bgp session type updated in local rib. + * + * @return isLocalRibIbgpSession session type + */ + public boolean isLocalRibIbgpSession() { + return isLocalRibIbgpSession; + } + + /** + * Returns local RIB Nlri details. + * + * @return localRibNlridetails Nlri details in local rib + */ + public PathAttrNlriDetails localRibNlridetails() { + return this.localRibNlridetails; + } + + @Override + public int hashCode() { + return Objects.hash(localRibIpAddress, localRibIdentifier, localRibAsNum, isLocalRibIbgpSession, + localRibNlridetails.hashCode()); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + if (obj instanceof PathAttrNlriDetailsLocalRib) { + PathAttrNlriDetailsLocalRib other = (PathAttrNlriDetailsLocalRib) obj; + return Objects.equals(localRibIpAddress, other.localRibIpAddress) + && Objects.equals(localRibIdentifier, other.localRibIdentifier) + && Objects.equals(localRibAsNum, other.localRibAsNum) + && Objects.equals(isLocalRibIbgpSession, other.isLocalRibIbgpSession) + && Objects.equals(localRibNlridetails, other.localRibNlridetails); + } + return false; + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()).add("peerIdentifier", localRibIdentifier) + .add("localRibpathAttributes", localRibNlridetails.pathAttributes()).toString(); + } +} diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/linkstate/package-info.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/linkstate/package-info.java new file mode 100755 index 00000000..87ba60f0 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/linkstate/package-info.java @@ -0,0 +1,20 @@ +/* + * 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. + */ + +/** + * BGP Protocol specific link state details. + */ +package org.onosproject.bgpio.protocol.linkstate; diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/package-info.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/package-info.java new file mode 100755 index 00000000..723b31b1 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/package-info.java @@ -0,0 +1,20 @@ +/* + * 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. + */ + +/** + * BGP Protocol specific components. + */ +package org.onosproject.bgpio.protocol; diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/ver4/BgpFactoryVer4.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/ver4/BgpFactoryVer4.java new file mode 100755 index 00000000..c57832b6 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/ver4/BgpFactoryVer4.java @@ -0,0 +1,58 @@ +/* + * 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.bgpio.protocol.ver4; + +import org.onosproject.bgpio.protocol.BgpFactory; +import org.onosproject.bgpio.protocol.BgpKeepaliveMsg; +import org.onosproject.bgpio.protocol.BgpMessage; +import org.onosproject.bgpio.protocol.BgpMessageReader; +import org.onosproject.bgpio.protocol.BgpNotificationMsg; +import org.onosproject.bgpio.protocol.BgpOpenMsg; +import org.onosproject.bgpio.protocol.BgpVersion; + +/** + * Provides BGP Factory and returns builder classes for all objects and messages. + */ +public class BgpFactoryVer4 implements BgpFactory { + + public static final BgpFactoryVer4 INSTANCE = new BgpFactoryVer4(); + + @Override + public BgpOpenMsg.Builder openMessageBuilder() { + return new BgpOpenMsgVer4.Builder(); + } + + @Override + public BgpKeepaliveMsg.Builder keepaliveMessageBuilder() { + return new BgpKeepaliveMsgVer4.Builder(); + } + + @Override + public BgpNotificationMsg.Builder notificationMessageBuilder() { + return new BgpNotificationMsgVer4.Builder(); + } + + @Override + public BgpMessageReader<BgpMessage> getReader() { + return BgpMessageVer4.READER; + } + + @Override + public BgpVersion getVersion() { + return BgpVersion.BGP_4; + } +}
\ No newline at end of file diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/ver4/BgpKeepaliveMsgVer4.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/ver4/BgpKeepaliveMsgVer4.java new file mode 100644 index 00000000..2c141586 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/ver4/BgpKeepaliveMsgVer4.java @@ -0,0 +1,157 @@ +/* + * 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.bgpio.protocol.ver4; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.protocol.BgpKeepaliveMsg; +import org.onosproject.bgpio.protocol.BgpMessageReader; +import org.onosproject.bgpio.protocol.BgpMessageWriter; +import org.onosproject.bgpio.types.BgpHeader; +import org.onosproject.bgpio.protocol.BgpType; +import org.onosproject.bgpio.protocol.BgpVersion; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.common.base.MoreObjects; + +/** + * Provides BGP keep alive message. + */ +public class BgpKeepaliveMsgVer4 implements BgpKeepaliveMsg { + + /* + <Keepalive Message>::= <Common Header> + A KEEPALIVE message consists of only the message header and has a + length of 19 octets. + + 0 1 2 3 + 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | | + + + + | | + + + + | Marker | + + + + | | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | Length | Type | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + + REFERENCE : RFC 4271 + */ + + protected static final Logger log = LoggerFactory + .getLogger(BgpKeepaliveMsgVer4.class); + + private BgpHeader bgpMsgHeader; + public static final byte PACKET_VERSION = 4; + public static final int PACKET_MINIMUM_LENGTH = 19; + public static final int MARKER_LENGTH = 16; + public static final BgpType MSG_TYPE = BgpType.KEEP_ALIVE; + public static byte[] marker = new byte[] {(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff, + (byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff, + (byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff, + (byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff}; + + public static final BgpKeepaliveMsgVer4.Reader READER = new Reader(); + + /** + * Reader class for reading BGP keepalive message from channel buffer. + */ + static class Reader implements BgpMessageReader<BgpKeepaliveMsg> { + + @Override + public BgpKeepaliveMsg readFrom(ChannelBuffer cb, BgpHeader bgpHeader) + throws BgpParseException { + + /* bgpHeader is not required in case of keepalive message and + Header is already read and no other fields except header in keepalive message.*/ + return new BgpKeepaliveMsgVer4(); + } + } + + /** + * Default constructor. + */ + public BgpKeepaliveMsgVer4() { + } + + /** + * Builder class for BGP keepalive message. + */ + static class Builder implements BgpKeepaliveMsg.Builder { + BgpHeader bgpMsgHeader; + + @Override + public Builder setHeader(BgpHeader bgpMsgHeader) { + this.bgpMsgHeader = bgpMsgHeader; + return this; + } + + @Override + public BgpKeepaliveMsg build() { + return new BgpKeepaliveMsgVer4(); + } + } + + @Override + public void writeTo(ChannelBuffer cb) { + WRITER.write(cb, this); + } + + static final Writer WRITER = new Writer(); + + /** + * Writer class for writing the BGP keepalive message to channel buffer. + */ + static class Writer implements BgpMessageWriter<BgpKeepaliveMsgVer4> { + + @Override + public void write(ChannelBuffer cb, BgpKeepaliveMsgVer4 message) { + + // write marker + cb.writeBytes(marker, 0, MARKER_LENGTH); + + // write length of header + cb.writeShort(PACKET_MINIMUM_LENGTH); + + // write the type of message + cb.writeByte(MSG_TYPE.getType()); + } + } + + @Override + public BgpVersion getVersion() { + return BgpVersion.BGP_4; + } + + @Override + public BgpType getType() { + return MSG_TYPE; + } + + @Override + public BgpHeader getHeader() { + return this.bgpMsgHeader; + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()).toString(); + } +} diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/ver4/BgpMessageVer4.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/ver4/BgpMessageVer4.java new file mode 100755 index 00000000..1c05dae4 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/ver4/BgpMessageVer4.java @@ -0,0 +1,111 @@ +/* + * 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.bgpio.protocol.ver4; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.protocol.BgpFactories; +import org.onosproject.bgpio.protocol.BgpMessage; +import org.onosproject.bgpio.protocol.BgpMessageReader; +import org.onosproject.bgpio.types.BgpErrorType; +import org.onosproject.bgpio.types.BgpHeader; +import org.onosproject.bgpio.util.Validation; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +/** + * Provides BGP messages. + */ +public abstract class BgpMessageVer4 { + + protected static final Logger log = LoggerFactory.getLogger(BgpFactories.class); + + static final byte OPEN_MSG_TYPE = 0x1; + static final byte KEEPALIVE_MSG_TYPE = 0x4; + static final byte UPDATE_MSG_TYPE = 0x2; + static final byte NOTIFICATION_MSG_TYPE = 0x3; + static final int MINIMUM_COMMON_HEADER_LENGTH = 19; + static final int HEADER_AND_MSG_LEN = 18; + static final int MAXIMUM_PACKET_LENGTH = 4096; + + public static final BgpMessageVer4.Reader READER = new Reader(); + + /** + * Reader class for reading BGP messages from channel buffer. + * + */ + static class Reader implements BgpMessageReader<BgpMessage> { + @Override + public BgpMessage readFrom(ChannelBuffer cb, BgpHeader bgpHeader) + throws BgpParseException { + + if (cb.readableBytes() < MINIMUM_COMMON_HEADER_LENGTH) { + log.error("Packet should have minimum length."); + Validation.validateLen(BgpErrorType.MESSAGE_HEADER_ERROR, BgpErrorType.BAD_MESSAGE_LENGTH, + cb.readableBytes()); + } + if (cb.readableBytes() > MAXIMUM_PACKET_LENGTH) { + log.error("Packet length should not exceed {}.", MAXIMUM_PACKET_LENGTH); + Validation.validateLen(BgpErrorType.MESSAGE_HEADER_ERROR, BgpErrorType.BAD_MESSAGE_LENGTH, + cb.readableBytes()); + } + try { + // fixed value property version == 4 + byte[] marker = new byte[BgpHeader.MARKER_LENGTH]; + cb.readBytes(marker, 0, BgpHeader.MARKER_LENGTH); + bgpHeader.setMarker(marker); + for (int i = 0; i < BgpHeader.MARKER_LENGTH; i++) { + if (marker[i] != (byte) 0xff) { + throw new BgpParseException(BgpErrorType.MESSAGE_HEADER_ERROR, + BgpErrorType.CONNECTION_NOT_SYNCHRONIZED, null); + } + } + short length = cb.readShort(); + if (length > cb.readableBytes() + HEADER_AND_MSG_LEN) { + Validation.validateLen(BgpErrorType.MESSAGE_HEADER_ERROR, + BgpErrorType.BAD_MESSAGE_LENGTH, length); + } + bgpHeader.setLength(length); + byte type = cb.readByte(); + bgpHeader.setType(type); + log.debug("Reading update message of type " + type); + + int len = length - MINIMUM_COMMON_HEADER_LENGTH; + switch (type) { + case OPEN_MSG_TYPE: + log.debug("OPEN MESSAGE is received"); + return BgpOpenMsgVer4.READER.readFrom(cb.readBytes(len), bgpHeader); + case KEEPALIVE_MSG_TYPE: + log.debug("KEEPALIVE MESSAGE is received"); + return BgpKeepaliveMsgVer4.READER.readFrom(cb.readBytes(len), bgpHeader); + case UPDATE_MSG_TYPE: + log.debug("UPDATE MESSAGE is received"); + return BgpUpdateMsgVer4.READER.readFrom(cb.readBytes(len), bgpHeader); + case NOTIFICATION_MSG_TYPE: + log.debug("NOTIFICATION MESSAGE is received"); + return BgpNotificationMsgVer4.READER.readFrom(cb.readBytes(len), bgpHeader); + default: + Validation.validateType(BgpErrorType.MESSAGE_HEADER_ERROR, BgpErrorType.BAD_MESSAGE_TYPE, type); + return null; + } + } catch (IndexOutOfBoundsException e) { + throw new BgpParseException(BgpErrorType.MESSAGE_HEADER_ERROR, + BgpErrorType.BAD_MESSAGE_LENGTH, null); + } + } + } +}
\ No newline at end of file diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/ver4/BgpNotificationMsgVer4.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/ver4/BgpNotificationMsgVer4.java new file mode 100644 index 00000000..7243e21a --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/ver4/BgpNotificationMsgVer4.java @@ -0,0 +1,265 @@ +/* + * 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.bgpio.protocol.ver4; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.protocol.BgpMessageReader; +import org.onosproject.bgpio.protocol.BgpMessageWriter; +import org.onosproject.bgpio.protocol.BgpNotificationMsg; +import org.onosproject.bgpio.protocol.BgpType; +import org.onosproject.bgpio.protocol.BgpVersion; +import org.onosproject.bgpio.types.BgpErrorType; +import org.onosproject.bgpio.types.BgpHeader; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.common.base.MoreObjects; + +/** + * A NOTIFICATION message is sent when an error condition is detected. The BGP connection is closed immediately after it + * is sent. + */ +class BgpNotificationMsgVer4 implements BgpNotificationMsg { + + /* + 0 1 2 3 + 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | Error code | Error subcode | Data (variable) | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + REFERENCE : RFC 4271 + */ + + private static final Logger log = LoggerFactory.getLogger(BgpNotificationMsgVer4.class); + + static final byte PACKET_VERSION = 4; + //BGPHeader(19) + Error code(1) + Error subcode(1) + static final int TOTAL_MESSAGE_MIN_LENGTH = 21; + static final int PACKET_MINIMUM_LENGTH = 2; + static final BgpType MSG_TYPE = BgpType.NOTIFICATION; + static final byte DEFAULT_ERRORSUBCODE = 0; + static final byte[] MARKER = {(byte) 0xff, (byte) 0xff, (byte) 0xff, + (byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff, + (byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff, + (byte) 0xff, (byte) 0xff, (byte) 0xff }; + static final byte MESSAGE_TYPE = 3; + static final BgpHeader DEFAULT_MESSAGE_HEADER = new BgpHeader(MARKER, BgpHeader.DEFAULT_HEADER_LENGTH, + MESSAGE_TYPE); + + private byte errorCode; + private byte errorSubCode; + private byte[] data; + private BgpHeader bgpHeader; + public static final BgpNotificationMsgVer4.Reader READER = new Reader(); + + /** + * Initialize fields. + */ + public BgpNotificationMsgVer4() { + this.bgpHeader = null; + this.data = null; + this.errorCode = 0; + this.errorSubCode = 0; + } + + /** + * Constructor to initialize parameters. + * + * @param bgpHeader BGP Header in notification message + * @param errorCode error code + * @param errorSubCode error subcode + * @param data field + */ + public BgpNotificationMsgVer4(BgpHeader bgpHeader, byte errorCode, byte errorSubCode, byte[] data) { + this.bgpHeader = bgpHeader; + this.data = data; + this.errorCode = errorCode; + this.errorSubCode = errorSubCode; + } + + /** + * Reader reads BGP Notification Message from the channel buffer. + */ + static class Reader implements BgpMessageReader<BgpNotificationMsg> { + @Override + public BgpNotificationMsg readFrom(ChannelBuffer cb, BgpHeader bgpHeader) throws BgpParseException { + byte errorCode; + byte errorSubCode; + if (cb.readableBytes() < PACKET_MINIMUM_LENGTH) { + throw new BgpParseException("Not enough readable bytes"); + } + errorCode = cb.readByte(); + errorSubCode = cb.readByte(); + //Message Length = 21 + Data Length + int dataLength = bgpHeader.getLength() - TOTAL_MESSAGE_MIN_LENGTH; + byte[] data = new byte[dataLength]; + cb.readBytes(data, 0, dataLength); + return new BgpNotificationMsgVer4(bgpHeader, errorCode, errorSubCode, data); + } + } + + /** + * Builder class for BGP notification message. + */ + static class Builder implements BgpNotificationMsg.Builder { + private byte errorCode; + private byte errorSubCode; + private byte[] data; + private BgpHeader bgpHeader; + private boolean isErrorCodeSet = false; + private boolean isErrorSubCodeSet = false; + private boolean isBGPHeaderSet = false; + + @Override + public BgpNotificationMsg build() throws BgpParseException { + BgpHeader bgpHeader = this.isBGPHeaderSet ? this.bgpHeader : DEFAULT_MESSAGE_HEADER; + if (!this.isErrorCodeSet) { + throw new BgpParseException("Error code must be present"); + } + + byte errorSubCode = this.isErrorSubCodeSet ? this.errorSubCode : DEFAULT_ERRORSUBCODE; + return new BgpNotificationMsgVer4(bgpHeader, this.errorCode, errorSubCode, this.data); + } + + @Override + public Builder setErrorCode(byte errorCode) { + this.errorCode = errorCode; + this.isErrorCodeSet = true; + return this; + } + + @Override + public Builder setErrorSubCode(byte errorSubCode) { + this.errorSubCode = errorSubCode; + this.isErrorSubCodeSet = true; + return this; + } + + @Override + public Builder setData(byte[] data) { + if (data != null) { + this.data = data; + } + return this; + } + + @Override + public Builder setHeader(BgpHeader bgpMsgHeader) { + this.bgpHeader = bgpMsgHeader; + return this; + } + } + + @Override + public BgpVersion getVersion() { + return BgpVersion.BGP_4; + } + + @Override + public BgpType getType() { + return BgpType.NOTIFICATION; + } + + @Override + public void writeTo(ChannelBuffer cb) throws BgpParseException { + WRITER.write(cb, this); + } + + static final Writer WRITER = new Writer(); + + /** + * Writer writes BGP notification message to channel buffer. + */ + static class Writer implements BgpMessageWriter<BgpNotificationMsgVer4> { + @Override + public void write(ChannelBuffer cb, BgpNotificationMsgVer4 message) throws BgpParseException { + int msgStartIndex = cb.writerIndex(); + int headerLenIndex = message.bgpHeader.write(cb); + if (headerLenIndex <= 0) { + throw new BgpParseException(BgpErrorType.MESSAGE_HEADER_ERROR, (byte) 0, null); + } + cb.writeByte(message.errorCode); + cb.writeByte(message.errorSubCode); + if (message.data != null) { + cb.writeBytes(message.data); + } + + //Update message length field in notification message + int length = cb.writerIndex() - msgStartIndex; + cb.setShort(headerLenIndex, (short) length); + message.bgpHeader.setLength((short) length); + } + } + + @Override + public byte getErrorCode() { + return this.errorCode; + } + + /** + * Sets errorcode with specified errorcode. + * + * @param errorCode field + */ + public void setErrorCode(byte errorCode) { + this.errorCode = errorCode; + } + + @Override + public byte getErrorSubCode() { + return this.errorSubCode; + } + + /** + * Sets error subcode with specified errorSubCode. + * + * @param errorSubCode field + */ + public void setErrorSubCode(byte errorSubCode) { + this.errorSubCode = errorSubCode; + } + + @Override + public byte[] getData() { + return this.data; + } + + /** + * Sets error data with specified data. + * + * @param data field + */ + public void setData(byte[] data) { + this.data = data; + } + + @Override + public BgpHeader getHeader() { + return this.bgpHeader; + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()) + .omitNullValues() + .add("bgpHeader", bgpHeader) + .add("data", data) + .add("errorCode", errorCode) + .add("errorSubCode", errorSubCode) + .toString(); + } +}
\ No newline at end of file diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/ver4/BgpOpenMsgVer4.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/ver4/BgpOpenMsgVer4.java new file mode 100644 index 00000000..359eec25 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/ver4/BgpOpenMsgVer4.java @@ -0,0 +1,518 @@ +/* + * 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.bgpio.protocol.ver4; + +import java.util.LinkedList; +import java.util.ListIterator; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.protocol.BgpMessageReader; +import org.onosproject.bgpio.protocol.BgpMessageWriter; +import org.onosproject.bgpio.protocol.BgpOpenMsg; +import org.onosproject.bgpio.protocol.BgpType; +import org.onosproject.bgpio.protocol.BgpVersion; +import org.onosproject.bgpio.types.BgpErrorType; +import org.onosproject.bgpio.types.BgpHeader; +import org.onosproject.bgpio.types.BgpValueType; +import org.onosproject.bgpio.types.FourOctetAsNumCapabilityTlv; +import org.onosproject.bgpio.types.MultiProtocolExtnCapabilityTlv; +import org.onosproject.bgpio.util.Validation; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.common.base.MoreObjects; + +/** + * Provides BGP open message. + */ +public class BgpOpenMsgVer4 implements BgpOpenMsg { + + /* + 0 1 2 3 + 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + +-+-+-+-+-+-+-+-+ + | Version | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | My Autonomous System | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | Hold Time | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | BGP Identifier | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | Opt Parm Len | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | Optional Parameters (variable) | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + OPEN Message Format + REFERENCE : RFC 4271 + */ + + protected static final Logger log = LoggerFactory.getLogger(BgpOpenMsgVer4.class); + + public static final byte PACKET_VERSION = 4; + public static final int OPEN_MSG_MINIMUM_LENGTH = 10; + public static final int MSG_HEADER_LENGTH = 19; + public static final int MARKER_LENGTH = 16; + public static final int DEFAULT_HOLD_TIME = 120; + public static final short AS_TRANS = 23456; + public static final int OPT_PARA_TYPE_CAPABILITY = 2; + public static final BgpType MSG_TYPE = BgpType.OPEN; + public static final short AFI = 16388; + public static final byte SAFI = 71; + public static final byte RES = 0; + public static final int FOUR_OCTET_AS_NUM_CAPA_TYPE = 65; + public static final byte[] MARKER = new byte[]{(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff, + (byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff, + (byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff}; + public static final BgpHeader DEFAULT_OPEN_HEADER = new BgpHeader(MARKER, + (short) OPEN_MSG_MINIMUM_LENGTH, (byte) 0X01); + private BgpHeader bgpMsgHeader; + private byte version; + private short asNumber; + private short holdTime; + private int bgpId; + private boolean isLargeAsCapabilitySet; + private LinkedList<BgpValueType> capabilityTlv; + + public static final BgpOpenMsgVer4.Reader READER = new Reader(); + + /** + * reset variables. + */ + public BgpOpenMsgVer4() { + this.bgpMsgHeader = null; + this.version = 0; + this.holdTime = 0; + this.asNumber = 0; + this.bgpId = 0; + this.capabilityTlv = null; + } + + /** + * Constructor to initialize all variables of BGP Open message. + * + * @param bgpMsgHeader BGP Header in open message + * @param version BGP version in open message + * @param holdTime hold time in open message + * @param asNumber AS number in open message + * @param bgpId BGP identifier in open message + * @param capabilityTlv capabilities in open message + */ + public BgpOpenMsgVer4(BgpHeader bgpMsgHeader, byte version, short asNumber, short holdTime, + int bgpId, LinkedList<BgpValueType> capabilityTlv) { + this.bgpMsgHeader = bgpMsgHeader; + this.version = version; + this.asNumber = asNumber; + this.holdTime = holdTime; + this.bgpId = bgpId; + this.capabilityTlv = capabilityTlv; + } + + @Override + public BgpHeader getHeader() { + return this.bgpMsgHeader; + } + + @Override + public BgpVersion getVersion() { + return BgpVersion.BGP_4; + } + + @Override + public BgpType getType() { + return MSG_TYPE; + } + + @Override + public short getHoldTime() { + return this.holdTime; + } + + @Override + public short getAsNumber() { + return this.asNumber; + } + + @Override + public int getBgpId() { + return this.bgpId; + } + + @Override + public LinkedList<BgpValueType> getCapabilityTlv() { + return this.capabilityTlv; + } + + /** + * Reader class for reading BGP open message from channel buffer. + */ + public static class Reader implements BgpMessageReader<BgpOpenMsg> { + + @Override + public BgpOpenMsg readFrom(ChannelBuffer cb, BgpHeader bgpHeader) throws BgpParseException { + + byte version; + short holdTime; + short asNumber; + int bgpId; + byte optParaLen = 0; + byte optParaType; + byte capParaLen = 0; + LinkedList<BgpValueType> capabilityTlv = new LinkedList<>(); + + if (cb.readableBytes() < OPEN_MSG_MINIMUM_LENGTH) { + log.error("[readFrom] Invalid length: Packet size is less than the minimum length "); + Validation.validateLen(BgpErrorType.OPEN_MESSAGE_ERROR, BgpErrorType.BAD_MESSAGE_LENGTH, + cb.readableBytes()); + } + + // Read version + version = cb.readByte(); + if (version != PACKET_VERSION) { + log.error("[readFrom] Invalid version: " + version); + throw new BgpParseException(BgpErrorType.OPEN_MESSAGE_ERROR, + BgpErrorType.UNSUPPORTED_VERSION_NUMBER, null); + } + + // Read AS number + asNumber = cb.readShort(); + + // Read Hold timer + holdTime = cb.readShort(); + + // Read BGP Identifier + bgpId = cb.readInt(); + + // Read optional parameter length + optParaLen = cb.readByte(); + + // Read Capabilities if optional parameter length is greater than 0 + if (optParaLen != 0) { + // Read optional parameter type + optParaType = cb.readByte(); + + // Read optional parameter length + capParaLen = cb.readByte(); + + if (cb.readableBytes() < capParaLen) { + throw new BgpParseException(BgpErrorType.OPEN_MESSAGE_ERROR, (byte) 0, null); + } + + ChannelBuffer capaCb = cb.readBytes(capParaLen); + + // Parse capabilities only if optional parameter type is 2 + if ((optParaType == OPT_PARA_TYPE_CAPABILITY) && (capParaLen != 0)) { + capabilityTlv = parseCapabilityTlv(capaCb); + } else { + throw new BgpParseException(BgpErrorType.OPEN_MESSAGE_ERROR, + BgpErrorType.UNSUPPORTED_OPTIONAL_PARAMETER, null); + } + } + return new BgpOpenMsgVer4(bgpHeader, version, asNumber, holdTime, bgpId, capabilityTlv); + } + } + + /** + * Parsing capabilities. + * + * @param cb of type channel buffer + * @return capabilityTlv of open message + * @throws BgpParseException while parsing capabilities + */ + protected static LinkedList<BgpValueType> parseCapabilityTlv(ChannelBuffer cb) throws BgpParseException { + + LinkedList<BgpValueType> capabilityTlv = new LinkedList<>(); + + while (cb.readableBytes() > 0) { + BgpValueType tlv; + short type = cb.readByte(); + short length = cb.readByte(); + + switch (type) { + case FourOctetAsNumCapabilityTlv.TYPE: + log.debug("FourOctetAsNumCapabilityTlv"); + if (FourOctetAsNumCapabilityTlv.LENGTH != length) { + throw new BgpParseException("Invalid length received for FourOctetAsNumCapabilityTlv."); + } + if (length > cb.readableBytes()) { + throw new BgpParseException("Four octet as num tlv length" + + " is more than readableBytes."); + } + int as4Num = cb.readInt(); + tlv = new FourOctetAsNumCapabilityTlv(as4Num); + break; + case MultiProtocolExtnCapabilityTlv.TYPE: + log.debug("MultiProtocolExtnCapabilityTlv"); + if (MultiProtocolExtnCapabilityTlv.LENGTH != length) { + throw new BgpParseException("Invalid length received for MultiProtocolExtnCapabilityTlv."); + } + if (length > cb.readableBytes()) { + throw new BgpParseException("BGP LS tlv length is more than readableBytes."); + } + short afi = cb.readShort(); + byte res = cb.readByte(); + byte safi = cb.readByte(); + tlv = new MultiProtocolExtnCapabilityTlv(afi, res, safi); + break; + default: + log.debug("Warning: Unsupported TLV: " + type); + cb.skipBytes(length); + continue; + } + capabilityTlv.add(tlv); + } + return capabilityTlv; + } + + /** + * Builder class for BGP open message. + */ + static class Builder implements BgpOpenMsg.Builder { + + private boolean isHeaderSet = false; + private BgpHeader bgpMsgHeader; + private boolean isHoldTimeSet = false; + private short holdTime; + private boolean isAsNumSet = false; + private short asNumber; + private boolean isBgpIdSet = false; + private int bgpId; + private boolean isLargeAsCapabilityTlvSet = false; + private boolean isLsCapabilityTlvSet = false; + + LinkedList<BgpValueType> capabilityTlv = new LinkedList<>(); + + @Override + public BgpOpenMsg build() throws BgpParseException { + BgpHeader bgpMsgHeader = this.isHeaderSet ? this.bgpMsgHeader : DEFAULT_OPEN_HEADER; + short holdTime = this.isHoldTimeSet ? this.holdTime : DEFAULT_HOLD_TIME; + + if (!this.isAsNumSet) { + throw new BgpParseException("BGP AS number is not set (mandatory)"); + } + + if (!this.isBgpIdSet) { + throw new BgpParseException("BGPID is not set (mandatory)"); + } + + if (this.isLargeAsCapabilityTlvSet) { + BgpValueType tlv; + int value = this.asNumber; + tlv = new FourOctetAsNumCapabilityTlv(value); + this.capabilityTlv.add(tlv); + } + + if (this.isLsCapabilityTlvSet) { + BgpValueType tlv; + tlv = new MultiProtocolExtnCapabilityTlv(AFI, RES, SAFI); + this.capabilityTlv.add(tlv); + } + + return new BgpOpenMsgVer4(bgpMsgHeader, PACKET_VERSION, this.asNumber, holdTime, this.bgpId, + this.capabilityTlv); + } + + @Override + public Builder setHeader(BgpHeader bgpMsgHeader) { + this.bgpMsgHeader = bgpMsgHeader; + return this; + } + + @Override + public Builder setHoldTime(short holdTime) { + this.holdTime = holdTime; + this.isHoldTimeSet = true; + return this; + } + + @Override + public Builder setAsNumber(short asNumber) { + this.asNumber = asNumber; + this.isAsNumSet = true; + return this; + } + + @Override + public Builder setBgpId(int bgpId) { + this.bgpId = bgpId; + this.isBgpIdSet = true; + return this; + } + + @Override + public Builder setCapabilityTlv(LinkedList<BgpValueType> capabilityTlv) { + this.capabilityTlv = capabilityTlv; + return this; + } + + @Override + public Builder setLargeAsCapabilityTlv(boolean isLargeAsCapabilitySet) { + this.isLargeAsCapabilityTlvSet = isLargeAsCapabilitySet; + return this; + } + + @Override + public Builder setLsCapabilityTlv(boolean isLsCapabilitySet) { + this.isLsCapabilityTlvSet = isLsCapabilitySet; + return this; + } + } + + @Override + public void writeTo(ChannelBuffer cb) { + try { + WRITER.write(cb, this); + } catch (BgpParseException e) { + log.debug("[writeTo] Error: " + e.toString()); + } + } + + public static final Writer WRITER = new Writer(); + + /** + * Writer class for writing BGP open message to channel buffer. + */ + public static class Writer implements BgpMessageWriter<BgpOpenMsgVer4> { + + @Override + public void write(ChannelBuffer cb, BgpOpenMsgVer4 message) throws BgpParseException { + + int optParaLen = 0; + int as4num = 0; + + int startIndex = cb.writerIndex(); + + // write common header and get msg length index + int msgLenIndex = message.bgpMsgHeader.write(cb); + + if (msgLenIndex <= 0) { + throw new BgpParseException("Unable to write message header."); + } + + // write version in 1-octet + cb.writeByte(message.version); + + // get as4num if LS Capability is set + if (message.isLargeAsCapabilitySet) { + LinkedList<BgpValueType> capabilityTlv = message + .getCapabilityTlv(); + ListIterator<BgpValueType> listIterator = capabilityTlv + .listIterator(); + + while (listIterator.hasNext()) { + BgpValueType tlv = listIterator.next(); + if (tlv.getType() == FOUR_OCTET_AS_NUM_CAPA_TYPE) { + as4num = ((FourOctetAsNumCapabilityTlv) tlv).getInt(); + break; + } + } + } + + if ((message.isLargeAsCapabilitySet) && (as4num > 65535)) { + // write As number as AS_TRANS + cb.writeShort(AS_TRANS); + } else { + // write AS number in next 2-octet + cb.writeShort(message.asNumber); + } + + // write HoldTime in next 2-octet + cb.writeShort(message.holdTime); + + // write BGP Identifier in next 4-octet + cb.writeInt(message.bgpId); + + // store the index of Optional parameter length + int optParaLenIndex = cb.writerIndex(); + + // set optional parameter length as 0 + cb.writeByte(0); + + // Pack capability TLV + optParaLen = message.packCapabilityTlv(cb, message); + + if (optParaLen != 0) { + // Update optional parameter length + cb.setByte(optParaLenIndex, (byte) (optParaLen + 2)); //+2 for optional parameter type. + } + + // write OPEN Object Length + int length = cb.writerIndex() - startIndex; + cb.setShort(msgLenIndex, (short) length); + message.bgpMsgHeader.setLength((short) length); + } + } + + /** + * returns length of capability tlvs. + * + * @param cb of type channel buffer + * @param message of type BGPOpenMsgVer4 + * @return capParaLen of open message + */ + protected int packCapabilityTlv(ChannelBuffer cb, BgpOpenMsgVer4 message) { + int startIndex = cb.writerIndex(); + int capParaLen = 0; + int capParaLenIndex = 0; + + LinkedList<BgpValueType> capabilityTlv = message.capabilityTlv; + ListIterator<BgpValueType> listIterator = capabilityTlv.listIterator(); + + if (listIterator.hasNext()) { + // Set optional parameter type as 2 + cb.writeByte(OPT_PARA_TYPE_CAPABILITY); + + // Store the index of capability parameter length and update length at the end + capParaLenIndex = cb.writerIndex(); + + // Set capability parameter length as 0 + cb.writeByte(0); + + // Update the startIndex to know the length of capability tlv + startIndex = cb.writerIndex(); + } + + while (listIterator.hasNext()) { + BgpValueType tlv = listIterator.next(); + if (tlv == null) { + log.debug("Warning: tlv is null from CapabilityTlv list"); + continue; + } + tlv.write(cb); + } + + capParaLen = cb.writerIndex() - startIndex; + + if (capParaLen != 0) { + // Update capability parameter length + cb.setByte(capParaLenIndex, (byte) capParaLen); + } + return capParaLen; + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()) + .add("bgpMsgHeader", bgpMsgHeader) + .add("version", version) + .add("holdTime", holdTime) + .add("asNumber", asNumber) + .add("bgpId", bgpId) + .add("capabilityTlv", capabilityTlv) + .toString(); + } +} diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/ver4/BgpPathAttributes.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/ver4/BgpPathAttributes.java new file mode 100644 index 00000000..13e52ca2 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/ver4/BgpPathAttributes.java @@ -0,0 +1,200 @@ +/* + * 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.bgpio.protocol.ver4; + +import java.util.LinkedList; +import java.util.List; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.types.As4Path; +import org.onosproject.bgpio.types.AsPath; +import org.onosproject.bgpio.types.BgpErrorType; +import org.onosproject.bgpio.types.BgpValueType; +import org.onosproject.bgpio.types.LocalPref; +import org.onosproject.bgpio.types.Med; +import org.onosproject.bgpio.types.NextHop; +import org.onosproject.bgpio.types.Origin; +import org.onosproject.bgpio.types.MpReachNlri; +import org.onosproject.bgpio.types.MpUnReachNlri; +import org.onosproject.bgpio.util.UnSupportedAttribute; +import org.onosproject.bgpio.util.Validation; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.common.base.MoreObjects; + +/** + * Provides Implementation of BGP Path Attribute. + */ +public class BgpPathAttributes { + + /* Path attribute: + <attribute type, attribute length, attribute value> + + 0 1 + 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | Attr. Flags |Attr. Type Code| + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + REFERENCE : RFC 4271 + */ + protected static final Logger log = LoggerFactory.getLogger(BgpPathAttributes.class); + + public static final int LINK_STATE_ATTRIBUTE_TYPE = 50; + public static final int MPREACHNLRI_TYPE = 14; + public static final int MPUNREACHNLRI_TYPE = 15; + + private final List<BgpValueType> pathAttribute; + + /** + * Initialize parameter. + */ + public BgpPathAttributes() { + this.pathAttribute = null; + } + + /** + * Constructor to initialize parameters for BGP path attributes. + * + * @param pathAttribute list of path attributes + */ + public BgpPathAttributes(List<BgpValueType> pathAttribute) { + this.pathAttribute = pathAttribute; + } + + /** + * Returns list of path attributes. + * + * @return list of path attributes + */ + public List<BgpValueType> pathAttributes() { + return this.pathAttribute; + } + + /** + * Reads from channelBuffer and parses BGP path attributes. + * + * @param cb channelBuffer + * @return object of BgpPathAttributes + * @throws BgpParseException while parsing BGP path attributes + */ + public static BgpPathAttributes read(ChannelBuffer cb) + throws BgpParseException { + + BgpValueType pathAttribute = null; + List<BgpValueType> pathAttributeList = new LinkedList<>(); + boolean isOrigin = false; + boolean isAsPath = false; + boolean isNextHop = false; + boolean isMpReach = false; + boolean isMpUnReach = false; + while (cb.readableBytes() > 0) { + cb.markReaderIndex(); + byte flags = cb.readByte(); + byte typeCode = cb.readByte(); + cb.resetReaderIndex(); + switch (typeCode) { + case Origin.ORIGIN_TYPE: + pathAttribute = Origin.read(cb); + isOrigin = ((Origin) pathAttribute).isOriginSet(); + break; + case AsPath.ASPATH_TYPE: + pathAttribute = AsPath.read(cb); + isAsPath = ((AsPath) pathAttribute).isaspathSet(); + break; + case As4Path.AS4PATH_TYPE: + pathAttribute = As4Path.read(cb); + break; + case NextHop.NEXTHOP_TYPE: + pathAttribute = NextHop.read(cb); + isNextHop = ((NextHop) pathAttribute).isNextHopSet(); + break; + case Med.MED_TYPE: + pathAttribute = Med.read(cb); + break; + case LocalPref.LOCAL_PREF_TYPE: + pathAttribute = LocalPref.read(cb); + break; + case MpReachNlri.MPREACHNLRI_TYPE: + pathAttribute = MpReachNlri.read(cb); + isMpReach = ((MpReachNlri) pathAttribute).isMpReachNlriSet(); + break; + case MpUnReachNlri.MPUNREACHNLRI_TYPE: + pathAttribute = MpUnReachNlri.read(cb); + isMpUnReach = ((MpUnReachNlri) pathAttribute) + .isMpUnReachNlriSet(); + break; + case LINK_STATE_ATTRIBUTE_TYPE: + //TODO: To be merged later + break; + default: + //skip bytes for unsupported attribute types + UnSupportedAttribute.read(cb); + } + pathAttributeList.add(pathAttribute); + } + + checkMandatoryAttr(isOrigin, isAsPath, isNextHop, isMpReach, isMpUnReach); + //TODO:if mp_reach or mp_unreach not present ignore the packet + return new BgpPathAttributes(pathAttributeList); + } + + /** + * Checks mandatory attributes are presents, if not present throws exception. + * + * @param isOrigin say whether origin attribute is present + * @param isAsPath say whether aspath attribute is present + * @param isNextHop say whether nexthop attribute is present + * @param isMpReach say whether mpreach attribute is present + * @param isMpUnReach say whether mpunreach attribute is present + * @throws BgpParseException if mandatory path attribute is not present + */ + public static void checkMandatoryAttr(boolean isOrigin, boolean isAsPath, + boolean isNextHop, boolean isMpReach, boolean isMpUnReach) + throws BgpParseException { + // Mandatory attributes validation not required for MP_UNREACH + if (isMpUnReach) { + return; + } + + if (!isOrigin) { + log.debug("Mandatory Attributes not Present"); + Validation.validateType(BgpErrorType.UPDATE_MESSAGE_ERROR, + BgpErrorType.MISSING_WELLKNOWN_ATTRIBUTE, + Origin.ORIGIN_TYPE); + } + if (!isAsPath) { + log.debug("Mandatory Attributes not Present"); + Validation.validateType(BgpErrorType.UPDATE_MESSAGE_ERROR, + BgpErrorType.MISSING_WELLKNOWN_ATTRIBUTE, + AsPath.ASPATH_TYPE); + } + if (!isMpUnReach && !isMpReach && !isNextHop) { + log.debug("Mandatory Attributes not Present"); + Validation.validateType(BgpErrorType.UPDATE_MESSAGE_ERROR, + BgpErrorType.MISSING_WELLKNOWN_ATTRIBUTE, + NextHop.NEXTHOP_TYPE); + } + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()) + .add("pathAttribute", pathAttribute) + .toString(); + } +} diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/ver4/BgpUpdateMsgVer4.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/ver4/BgpUpdateMsgVer4.java new file mode 100644 index 00000000..4d6af594 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/ver4/BgpUpdateMsgVer4.java @@ -0,0 +1,285 @@ +/* + * 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.bgpio.protocol.ver4; + +import java.util.LinkedList; +import java.util.List; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onlab.packet.IpPrefix; +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.protocol.BgpMessageReader; +import org.onosproject.bgpio.protocol.BgpType; +import org.onosproject.bgpio.protocol.BgpUpdateMsg; +import org.onosproject.bgpio.types.BgpErrorType; +import org.onosproject.bgpio.types.BgpHeader; +import org.onosproject.bgpio.util.Validation; +import org.onosproject.bgpio.protocol.BgpVersion; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.common.base.MoreObjects; + +/** + * BGP Update Message: UPDATE messages are used to transfer routing information + * between BGP peers. The information in the UPDATE message is used by core to + * construct a graph + */ +public class BgpUpdateMsgVer4 implements BgpUpdateMsg { + + /* 0 1 2 3 + 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | | + + + + | | + + + + | Marker | + + + + | | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | Length | Type | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | Withdrawn Routes Length (2 octets) | + +-----------------------------------------------------+ + | Withdrawn Routes (variable) | + +-----------------------------------------------------+ + | Total Path Attribute Length (2 octets) | + +-----------------------------------------------------+ + | Path Attributes (variable) | + +-----------------------------------------------------+ + | Network Layer Reachability Information (variable) | + +-----------------------------------------------------+ + REFERENCE : RFC 4271 + */ + + protected static final Logger log = LoggerFactory + .getLogger(BgpUpdateMsgVer4.class); + + public static final byte PACKET_VERSION = 4; + //Withdrawn Routes Length(2) + Total Path Attribute Length(2) + public static final int PACKET_MINIMUM_LENGTH = 4; + public static final int BYTE_IN_BITS = 8; + public static final int MIN_LEN_AFTER_WITHDRW_ROUTES = 2; + public static final int MINIMUM_COMMON_HEADER_LENGTH = 19; + public static final BgpType MSG_TYPE = BgpType.UPDATE; + public static final BgpUpdateMsgVer4.Reader READER = new Reader(); + + private List<IpPrefix> withdrawnRoutes; + private BgpPathAttributes bgpPathAttributes; + private BgpHeader bgpHeader; + private List<IpPrefix> nlri; + + /** + * Constructor to initialize parameters for BGP Update message. + * + * @param bgpHeader in Update message + * @param withdrawnRoutes withdrawn routes + * @param bgpPathAttributes BGP Path attributes + * @param nlri Network Layer Reachability Information + */ + public BgpUpdateMsgVer4(BgpHeader bgpHeader, List<IpPrefix> withdrawnRoutes, + BgpPathAttributes bgpPathAttributes, List<IpPrefix> nlri) { + this.bgpHeader = bgpHeader; + this.withdrawnRoutes = withdrawnRoutes; + this.bgpPathAttributes = bgpPathAttributes; + this.nlri = nlri; + } + + /** + * Reader reads BGP Update Message from the channel buffer. + */ + static class Reader implements BgpMessageReader<BgpUpdateMsg> { + + @Override + public BgpUpdateMsg readFrom(ChannelBuffer cb, BgpHeader bgpHeader) + throws BgpParseException { + + if (cb.readableBytes() != (bgpHeader.getLength() - MINIMUM_COMMON_HEADER_LENGTH)) { + Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, + BgpErrorType.BAD_MESSAGE_LENGTH, bgpHeader.getLength()); + } + + LinkedList<IpPrefix> withDrwRoutes = new LinkedList<>(); + LinkedList<IpPrefix> nlri = new LinkedList<>(); + BgpPathAttributes bgpPathAttributes = new BgpPathAttributes(); + // Reading Withdrawn Routes Length + Short withDrwLen = cb.readShort(); + + if (cb.readableBytes() < withDrwLen) { + Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, + BgpErrorType.MALFORMED_ATTRIBUTE_LIST, + cb.readableBytes()); + } + ChannelBuffer tempCb = cb.readBytes(withDrwLen); + if (withDrwLen != 0) { + // Parsing WithdrawnRoutes + withDrwRoutes = parseWithdrawnRoutes(tempCb); + } + if (cb.readableBytes() < MIN_LEN_AFTER_WITHDRW_ROUTES) { + log.debug("Bgp Path Attribute len field not present"); + throw new BgpParseException(BgpErrorType.UPDATE_MESSAGE_ERROR, + BgpErrorType.MALFORMED_ATTRIBUTE_LIST, null); + } + + // Reading Total Path Attribute Length + short totPathAttrLen = cb.readShort(); + int len = withDrwLen + totPathAttrLen + PACKET_MINIMUM_LENGTH; + if (len > bgpHeader.getLength()) { + throw new BgpParseException(BgpErrorType.UPDATE_MESSAGE_ERROR, + BgpErrorType.MALFORMED_ATTRIBUTE_LIST, null); + } + if (totPathAttrLen != 0) { + // Parsing BGPPathAttributes + if (cb.readableBytes() < totPathAttrLen) { + Validation + .validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, + BgpErrorType.MALFORMED_ATTRIBUTE_LIST, + cb.readableBytes()); + } + tempCb = cb.readBytes(totPathAttrLen); + bgpPathAttributes = BgpPathAttributes.read(tempCb); + } + if (cb.readableBytes() > 0) { + // Parsing NLRI + nlri = parseNlri(cb); + } + return new BgpUpdateMsgVer4(bgpHeader, withDrwRoutes, + bgpPathAttributes, nlri); + } + } + + /** + * Parses NLRI from channel buffer. + * + * @param cb channelBuffer + * @return list of IP Prefix + * @throws BgpParseException while parsing NLRI + */ + public static LinkedList<IpPrefix> parseNlri(ChannelBuffer cb) + throws BgpParseException { + LinkedList<IpPrefix> nlri = new LinkedList<>(); + while (cb.readableBytes() > 0) { + int length = cb.readByte(); + IpPrefix ipPrefix; + if (length == 0) { + byte[] prefix = new byte[] {0}; + ipPrefix = Validation.bytesToPrefix(prefix, length); + nlri.add(ipPrefix); + } else { + int len = length / BYTE_IN_BITS; + int reminder = length % BYTE_IN_BITS; + if (reminder > 0) { + len = len + 1; + } + if (cb.readableBytes() < len) { + Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, + BgpErrorType.MALFORMED_ATTRIBUTE_LIST, + cb.readableBytes()); + } + byte[] prefix = new byte[len]; + cb.readBytes(prefix, 0, len); + ipPrefix = Validation.bytesToPrefix(prefix, length); + nlri.add(ipPrefix); + } + } + return nlri; + } + + /** + * Parsing withdrawn routes from channel buffer. + * + * @param cb channelBuffer + * @return list of IP prefix + * @throws BgpParseException while parsing withdrawn routes + */ + public static LinkedList<IpPrefix> parseWithdrawnRoutes(ChannelBuffer cb) + throws BgpParseException { + LinkedList<IpPrefix> withDrwRoutes = new LinkedList<>(); + while (cb.readableBytes() > 0) { + int length = cb.readByte(); + IpPrefix ipPrefix; + if (length == 0) { + byte[] prefix = new byte[] {0}; + ipPrefix = Validation.bytesToPrefix(prefix, length); + withDrwRoutes.add(ipPrefix); + } else { + int len = length / BYTE_IN_BITS; + int reminder = length % BYTE_IN_BITS; + if (reminder > 0) { + len = len + 1; + } + if (cb.readableBytes() < len) { + Validation + .validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, + BgpErrorType.MALFORMED_ATTRIBUTE_LIST, + cb.readableBytes()); + } + byte[] prefix = new byte[len]; + cb.readBytes(prefix, 0, len); + ipPrefix = Validation.bytesToPrefix(prefix, length); + withDrwRoutes.add(ipPrefix); + } + } + return withDrwRoutes; + } + + @Override + public BgpVersion getVersion() { + return BgpVersion.BGP_4; + } + + @Override + public BgpType getType() { + return BgpType.UPDATE; + } + + @Override + public void writeTo(ChannelBuffer channelBuffer) throws BgpParseException { + //Not to be implemented as of now + } + + @Override + public BgpPathAttributes bgpPathAttributes() { + return this.bgpPathAttributes; + } + + @Override + public List<IpPrefix> withdrawnRoutes() { + return withdrawnRoutes; + } + + @Override + public List<IpPrefix> nlri() { + return nlri; + } + + @Override + public BgpHeader getHeader() { + return this.bgpHeader; + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()) + .omitNullValues() + .add("bgpHeader", bgpHeader) + .add("withDrawnRoutes", withdrawnRoutes) + .add("nlri", nlri) + .add("bgpPathAttributes", bgpPathAttributes) + .toString(); + } +} diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/ver4/package-info.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/ver4/package-info.java new file mode 100755 index 00000000..fb8c67c0 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/ver4/package-info.java @@ -0,0 +1,20 @@ +/* + * 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. + */ + +/** + * BGP Protocol specific details of version 4. + */ +package org.onosproject.bgpio.protocol.ver4;
\ No newline at end of file diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/AreaIDTlv.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/AreaIDTlv.java new file mode 100644 index 00000000..842c6f02 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/AreaIDTlv.java @@ -0,0 +1,130 @@ +/* + * 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.bgpio.types; + +import java.util.Objects; + +import org.jboss.netty.buffer.ChannelBuffer; + +import com.google.common.base.MoreObjects; + +/** + * Provides AreaID Tlv which contains opaque value (32 Bit Area-ID). + */ +public class AreaIDTlv implements BgpValueType { + + /* Reference :draft-ietf-idr-ls-distribution-11 + * 0 1 2 3 + 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | Type= 514 | Length=4 | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | opaque value (32 Bit Area-ID) | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + */ + + public static final short TYPE = 514; + public static final short LENGTH = 4; + + private final int areaID; + + /** + * Constructor to initialize areaID. + * + * @param areaID of BGP AreaID Tlv + */ + public AreaIDTlv(int areaID) { + this.areaID = areaID; + } + + /** + * Returns object of this class with specified areaID. + * + * @param areaID opaque value of area id + * @return object of AreaIDTlv + */ + public static AreaIDTlv of(final int areaID) { + return new AreaIDTlv(areaID); + } + + /** + * Returns opaque value of area id. + * + * @return opaque value of area id + */ + public int getAreaID() { + return areaID; + } + + @Override + public int hashCode() { + return Objects.hash(areaID); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + + if (obj instanceof AreaIDTlv) { + AreaIDTlv other = (AreaIDTlv) obj; + return Objects.equals(areaID, other.areaID); + } + return false; + } + + @Override + public int write(ChannelBuffer c) { + int iLenStartIndex = c.writerIndex(); + c.writeShort(TYPE); + c.writeShort(LENGTH); + c.writeInt(areaID); + return c.writerIndex() - iLenStartIndex; + } + + /** + * Reads the channel buffer and returns object of AreaIDTlv. + * + * @param cb ChannelBuffer + * @return object of AreaIDTlv + */ + public static AreaIDTlv read(ChannelBuffer cb) { + return AreaIDTlv.of(cb.readInt()); + } + + @Override + public short getType() { + return TYPE; + } + + @Override + public int compareTo(Object o) { + if (this.equals(o)) { + return 0; + } + return ((Integer) (this.areaID)).compareTo((Integer) (((AreaIDTlv) o).areaID)); + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()) + .add("Type", TYPE) + .add("Length", LENGTH) + .add("Value", areaID) + .toString(); + } +}
\ No newline at end of file diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/As4Path.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/As4Path.java new file mode 100644 index 00000000..3ceca2ce --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/As4Path.java @@ -0,0 +1,175 @@ +/* + * 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.bgpio.types; + +import java.util.ArrayList; +import java.util.List; +import java.util.Objects; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.util.Constants; +import org.onosproject.bgpio.util.Validation; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.common.base.MoreObjects; + +/** + * Provides Implementation of As4Path BGP Path Attribute. + */ +public class As4Path implements BgpValueType { + private static final Logger log = LoggerFactory.getLogger(AsPath.class); + public static final byte AS4PATH_TYPE = 17; + public static final byte ASNUM_SIZE = 4; + + private List<Integer> as4pathSet; + private List<Integer> as4pathSeq; + + /** + * Initialize fields. + */ + public As4Path() { + this.as4pathSeq = null; + this.as4pathSet = null; + } + + /** + * Constructor to initialize parameters. + * + * @param as4pathSet AS4path Set + * @param as4pathSeq AS4path Sequence + */ + public As4Path(List<Integer> as4pathSet, List<Integer> as4pathSeq) { + this.as4pathSeq = as4pathSeq; + this.as4pathSet = as4pathSet; + } + + /** + * Reads from the channel buffer and parses As4Path. + * + * @param cb ChannelBuffer + * @return object of As4Path + * @throws BgpParseException while parsing As4Path + */ + public static As4Path read(ChannelBuffer cb) throws BgpParseException { + List<Integer> as4pathSet = new ArrayList<>(); + List<Integer> as4pathSeq = new ArrayList<>(); + ChannelBuffer tempCb = cb.copy(); + Validation validation = Validation.parseAttributeHeader(cb); + + if (cb.readableBytes() < validation.getLength()) { + Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, BgpErrorType.ATTRIBUTE_LENGTH_ERROR, + validation.getLength()); + } + //if fourth bit is set length is read as short otherwise as byte , len includes type, length and value + int len = validation.isShort() ? validation.getLength() + Constants.TYPE_AND_LEN_AS_SHORT : validation + .getLength() + Constants.TYPE_AND_LEN_AS_BYTE; + ChannelBuffer data = tempCb.readBytes(len); + if (validation.getFirstBit() && !validation.getSecondBit() && validation.getThirdBit()) { + throw new BgpParseException(BgpErrorType.UPDATE_MESSAGE_ERROR, BgpErrorType.ATTRIBUTE_FLAGS_ERROR, data); + } + + ChannelBuffer tempBuf = cb.readBytes(validation.getLength()); + while (tempBuf.readableBytes() > 0) { + byte pathSegType = tempBuf.readByte(); + //no of ASes + byte pathSegLen = tempBuf.readByte(); + //length = no of Ases * ASnum size (4 bytes) + int length = pathSegLen * ASNUM_SIZE; + if (tempBuf.readableBytes() < length) { + Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, + BgpErrorType.ATTRIBUTE_LENGTH_ERROR, length); + } + ChannelBuffer aspathBuf = tempBuf.readBytes(length); + while (aspathBuf.readableBytes() > 0) { + int asNum; + asNum = aspathBuf.readInt(); + switch (pathSegType) { + case AsPath.ASPATH_SET_TYPE: + as4pathSet.add(asNum); + break; + case AsPath.ASPATH_SEQ_TYPE: + as4pathSeq.add(asNum); + break; + default: log.debug("Other type Not Supported:" + pathSegType); + } + } + } + return new As4Path(as4pathSet, as4pathSeq); + } + + @Override + public short getType() { + return AS4PATH_TYPE; + } + + /** + * Returns list of ASNum in AS4path Sequence. + * + * @return list of ASNum in AS4path Sequence + */ + public List<Integer> as4PathSEQ() { + return this.as4pathSeq; + } + + /** + * Returns list of ASNum in AS4path Set. + * + * @return list of ASNum in AS4path Set + */ + public List<Integer> as4PathSET() { + return this.as4pathSet; + } + + @Override + public int hashCode() { + return Objects.hash(as4pathSet, as4pathSeq); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + if (obj instanceof As4Path) { + As4Path other = (As4Path) obj; + return Objects.equals(as4pathSet, other.as4pathSet) && Objects.equals(as4pathSeq, other.as4pathSeq); + } + return false; + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()) + .omitNullValues() + .add("as4pathSet", as4pathSet) + .add("as4pathSeq", as4pathSeq) + .toString(); + } + + @Override + public int write(ChannelBuffer cb) { + //Not required to Implement as of now + return 0; + } + + @Override + public int compareTo(Object o) { + // TODO Auto-generated method stub + return 0; + } +}
\ No newline at end of file diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/AsPath.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/AsPath.java new file mode 100644 index 00000000..2a050c44 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/AsPath.java @@ -0,0 +1,214 @@ +/* + * 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.bgpio.types; + +import java.util.ArrayList; +import java.util.List; +import java.util.Objects; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.util.Constants; +import org.onosproject.bgpio.util.Validation; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.common.base.MoreObjects; + +/** + * Provides Implementation of AsPath mandatory BGP Path Attribute. + */ +public class AsPath implements BgpValueType { + /** + * Enum to provide AS types. + */ + public enum ASTYPE { + AS_SET(1), AS_SEQUENCE(2), AS_CONFED_SEQUENCE(3), AS_CONFED_SET(4); + int value; + + /** + * Assign val with the value as the AS type. + * + * @param val AS type + */ + ASTYPE(int val) { + value = val; + } + + /** + * Returns value of AS type. + * + * @return AS type + */ + public byte type() { + return (byte) value; + } + } + + private static final Logger log = LoggerFactory.getLogger(AsPath.class); + public static final byte ASPATH_TYPE = 2; + public static final byte ASPATH_SET_TYPE = 1; + public static final byte ASPATH_SEQ_TYPE = 2; + public static final byte ASNUM_SIZE = 2; + + private boolean isAsPath = false; + private List<Short> aspathSet; + private List<Short> aspathSeq; + + /** + * Initialize Fields. + */ + public AsPath() { + this.aspathSeq = null; + this.aspathSet = null; + } + + /** + * Constructor to initialize parameters. + * + * @param aspathSet ASpath Set type + * @param aspathSeq ASpath Sequence type + */ + public AsPath(List<Short> aspathSet, List<Short> aspathSeq) { + this.aspathSeq = aspathSeq; + this.aspathSet = aspathSet; + this.isAsPath = true; + } + + /** + * Reads from the channel buffer and parses AsPath. + * + * @param cb ChannelBuffer + * @return object of AsPath + * @throws BgpParseException while parsing AsPath + */ + public static AsPath read(ChannelBuffer cb) throws BgpParseException { + List<Short> aspathSet = new ArrayList<>(); + List<Short> aspathSeq = new ArrayList<>(); + ChannelBuffer tempCb = cb.copy(); + Validation validation = Validation.parseAttributeHeader(cb); + + if (cb.readableBytes() < validation.getLength()) { + Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, BgpErrorType.ATTRIBUTE_LENGTH_ERROR, + validation.getLength()); + } + //if fourth bit is set, length is read as short otherwise as byte , len includes type, length and value + int len = validation.isShort() ? validation.getLength() + Constants.TYPE_AND_LEN_AS_SHORT : validation + .getLength() + Constants.TYPE_AND_LEN_AS_BYTE; + ChannelBuffer data = tempCb.readBytes(len); + if (validation.getFirstBit() && !validation.getSecondBit() && validation.getThirdBit()) { + throw new BgpParseException(BgpErrorType.UPDATE_MESSAGE_ERROR, BgpErrorType.ATTRIBUTE_FLAGS_ERROR, data); + } + + ChannelBuffer tempBuf = cb.readBytes(validation.getLength()); + while (tempBuf.readableBytes() > 0) { + byte pathSegType = tempBuf.readByte(); + //no of ASes + byte pathSegLen = tempBuf.readByte(); + int length = pathSegLen * ASNUM_SIZE; + if (tempBuf.readableBytes() < length) { + Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, + BgpErrorType.ATTRIBUTE_LENGTH_ERROR, length); + } + ChannelBuffer aspathBuf = tempBuf.readBytes(length); + while (aspathBuf.readableBytes() > 0) { + short asNum; + asNum = aspathBuf.readShort(); + switch (pathSegType) { + case ASPATH_SET_TYPE: + aspathSet.add(asNum); + break; + case ASPATH_SEQ_TYPE: + aspathSeq.add(asNum); + break; + default: log.debug("Other type Not Supported:" + pathSegType); + } + } + } + return new AsPath(aspathSet, aspathSeq); + } + + @Override + public short getType() { + return ASPATH_TYPE; + } + + /** + * Returns whether ASpath path attribute is present. + * + * @return whether ASpath path attribute is present + */ + public boolean isaspathSet() { + return this.isAsPath; + } + + /** + * Returns list of ASNum in ASpath Sequence. + * + * @return list of ASNum in ASpath Sequence + */ + public List<Short> asPathSeq() { + return this.aspathSeq; + } + + /** + * Returns list of ASNum in ASpath SET. + * + * @return list of ASNum in ASpath SET + */ + public List<Short> asPathSet() { + return this.aspathSet; + } + + @Override + public int hashCode() { + return Objects.hash(aspathSet, aspathSeq); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + if (obj instanceof AsPath) { + AsPath other = (AsPath) obj; + return Objects.equals(aspathSet, other.aspathSet) && Objects.equals(aspathSeq, other.aspathSeq); + } + return false; + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()) + .omitNullValues() + .add("aspathSet", aspathSet) + .add("aspathSeq", aspathSeq) + .toString(); + } + + @Override + public int write(ChannelBuffer cb) { + //Not required to Implement as of now + return 0; + } + + @Override + public int compareTo(Object o) { + // TODO Auto-generated method stub + return 0; + } +}
\ No newline at end of file diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/AutonomousSystemTlv.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/AutonomousSystemTlv.java new file mode 100644 index 00000000..119926c8 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/AutonomousSystemTlv.java @@ -0,0 +1,130 @@ +/* + * 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.bgpio.types; + +import java.util.Objects; + +import org.jboss.netty.buffer.ChannelBuffer; + +import com.google.common.base.MoreObjects; + +/** + * Provides Autonomous System Tlv which contains opaque value (32 Bit AS Number). + */ +public class AutonomousSystemTlv implements BgpValueType { + + /* Reference :draft-ietf-idr-ls-distribution-11 + * 0 1 2 3 + 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | Type= 512 | Length=4 | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | opaque value (32 Bit AS Number) | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + */ + + public static final short TYPE = 512; + public static final short LENGTH = 4; + + private final int asNum; + + /** + * Constructor to initialize asNum. + * + * @param asNum 32 Bit AS Number + */ + public AutonomousSystemTlv(int asNum) { + this.asNum = asNum; + } + + /** + * Returns object of this class with specified asNum. + * + * @param asNum 32 Bit AS Number + * @return object of AutonomousSystemTlv + */ + public static AutonomousSystemTlv of(final int asNum) { + return new AutonomousSystemTlv(asNum); + } + + /** + * Returns opaque value of AS Number. + * + * @return opaque value of AS Number + */ + public int getAsNum() { + return asNum; + } + + @Override + public int hashCode() { + return Objects.hash(asNum); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + + if (obj instanceof AutonomousSystemTlv) { + AutonomousSystemTlv other = (AutonomousSystemTlv) obj; + return Objects.equals(asNum, other.asNum); + } + return false; + } + + @Override + public int write(ChannelBuffer c) { + int iLenStartIndex = c.writerIndex(); + c.writeShort(TYPE); + c.writeShort(LENGTH); + c.writeInt(asNum); + return c.writerIndex() - iLenStartIndex; + } + + /** + * Reads the channel buffer and returns object of AutonomousSystemTlv. + * + * @param c ChannelBuffer + * @return object of AutonomousSystemTlv + */ + public static AutonomousSystemTlv read(ChannelBuffer c) { + return AutonomousSystemTlv.of(c.readInt()); + } + + @Override + public short getType() { + return TYPE; + } + + @Override + public int compareTo(Object o) { + if (this.equals(o)) { + return 0; + } + return ((Integer) (this.asNum)).compareTo((Integer) (((AutonomousSystemTlv) o).asNum)); + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()) + .add("Type", TYPE) + .add("Length", LENGTH) + .add("asNum", asNum) + .toString(); + } +}
\ No newline at end of file diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/BgpErrorType.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/BgpErrorType.java new file mode 100644 index 00000000..c0932ebe --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/BgpErrorType.java @@ -0,0 +1,74 @@ +/* + * 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.bgpio.types; + +/** + * BgpErrorType class defines all errorCodes and error Subcodes required for Notification message. + */ +public final class BgpErrorType { + private BgpErrorType() { + } + + //Error Codes + public static final byte MESSAGE_HEADER_ERROR = 1; + public static final byte OPEN_MESSAGE_ERROR = 2; + public static final byte UPDATE_MESSAGE_ERROR = 3; + public static final byte HOLD_TIMER_EXPIRED = 4; + public static final byte FINITE_STATE_MACHINE_ERROR = 5; + public static final byte CEASE = 6; + + //Message Header Error subcodes + public static final byte CONNECTION_NOT_SYNCHRONIZED = 1; + public static final byte BAD_MESSAGE_LENGTH = 2; + public static final byte BAD_MESSAGE_TYPE = 3; + + //OPEN Message Error subcodes + public static final byte UNSUPPORTED_VERSION_NUMBER = 1; + public static final byte BAD_PEER_AS = 2; + public static final byte BAD_BGP_IDENTIFIER = 3; + public static final byte UNSUPPORTED_OPTIONAL_PARAMETER = 4; + public static final byte UNACCEPTABLE_HOLD_TIME = 5; + public static final byte UNSUPPORTED_CAPABILITY = 7; + + //UPDATE Message Error subcodes + public static final byte MALFORMED_ATTRIBUTE_LIST = 1; + public static final byte UNRECOGNIZED_WELLKNOWN_ATTRIBUTE = 2; + public static final byte MISSING_WELLKNOWN_ATTRIBUTE = 3; + public static final byte ATTRIBUTE_FLAGS_ERROR = 4; + public static final byte ATTRIBUTE_LENGTH_ERROR = 5; + public static final byte INVALID_ORIGIN_ATTRIBUTE = 6; + public static final byte INVALID_NEXTHOP_ATTRIBUTE = 8; + public static final byte OPTIONAL_ATTRIBUTE_ERROR = 9; + public static final byte INVALID_NETWORK_FIELD = 10; + public static final byte MALFORMED_ASPATH = 11; + + //FSM Error subcodes + public static final byte UNSPECIFIED_ERROR = 0; + public static final byte RECEIVE_UNEXPECTED_MESSAGE_IN_OPENSENT_STATE = 1; + public static final byte RECEIVE_UNEXPECTED_MESSAGE_IN_OPENCONFIRM_STATE = 2; + public static final byte RECEIVE_UNEXPECTED_MESSAGE_IN_ESTABLISHED_STATE = 3; + + //Cease Error subcodes + public static final byte MAXIMUM_NUMBER_OF_PREFIXES_REACHED = 1; + public static final byte ADMINISTRATIVE_SHUTDOWN = 2; + public static final byte PEER_DECONFIGURED = 3; + public static final byte ADMINISTRATIVE_RESET = 4; + public static final byte CONNECTION_REJECTED = 5; + public static final byte OTHER_CONFIGURATION_CHANGE = 6; + public static final byte CONNECTION_COLLISION_RESOLUTION = 7; + public static final byte OUT_OF_RESOURCES = 8; +}
\ No newline at end of file diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/BgpHeader.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/BgpHeader.java new file mode 100755 index 00000000..ad637753 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/BgpHeader.java @@ -0,0 +1,161 @@ +/* + * 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.bgpio.types; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +/** + * Provides BGP Message Header which is common for all the Messages. + */ + +public class BgpHeader { + + /* 0 1 2 3 + 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | | + + + + | | + + + + | Marker | + + + + | | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | Length | Type | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + */ + + protected static final Logger log = LoggerFactory.getLogger(BgpHeader.class); + + public static final int MARKER_LENGTH = 16; + public static final short DEFAULT_HEADER_LENGTH = 19; + + private byte[] marker; + private byte type; + private short length; + + /** + * Reset fields. + */ + public BgpHeader() { + this.marker = null; + this.length = 0; + this.type = 0; + } + + /** + * Constructors to initialize parameters. + * + * @param marker field in BGP header + * @param length message length + * @param type message type + */ + public BgpHeader(byte[] marker, short length, byte type) { + this.marker = marker; + this.length = length; + this.type = type; + } + + /** + * Sets marker field. + * + * @param value marker field + */ + public void setMarker(byte[] value) { + this.marker = value; + } + + /** + * Sets message type. + * + * @param value message type + */ + public void setType(byte value) { + this.type = value; + } + + /** + * Sets message length. + * + * @param value message length + */ + public void setLength(short value) { + this.length = value; + } + + /** + * Returns message length. + * + * @return message length + */ + public short getLength() { + return this.length; + } + + /** + * Returns message marker. + * + * @return message marker + */ + public byte[] getMarker() { + return this.marker; + } + + /** + * Returns message type. + * + * @return message type + */ + public byte getType() { + return this.type; + } + + /** + * Writes Byte stream of BGP header to channel buffer. + * + * @param cb ChannelBuffer + * @return length index of message header + */ + public int write(ChannelBuffer cb) { + + cb.writeBytes(getMarker(), 0, MARKER_LENGTH); + + int headerLenIndex = cb.writerIndex(); + cb.writeShort((short) 0); + cb.writeByte(type); + + return headerLenIndex; + } + + /** + * Read from channel buffer and Returns BGP header. + * + * @param cb ChannelBuffer + * @return object of BGPHeader + */ + public static BgpHeader read(ChannelBuffer cb) { + + byte[] marker = new byte[MARKER_LENGTH]; + byte type; + short length; + cb.readBytes(marker, 0, MARKER_LENGTH); + length = cb.readShort(); + type = cb.readByte(); + return new BgpHeader(marker, length, type); + } +}
\ No newline at end of file diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/BgpLSIdentifierTlv.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/BgpLSIdentifierTlv.java new file mode 100644 index 00000000..58645d4f --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/BgpLSIdentifierTlv.java @@ -0,0 +1,131 @@ +/* + * 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.bgpio.types; + +import java.util.Objects; + +import org.jboss.netty.buffer.ChannelBuffer; + +import com.google.common.base.MoreObjects; + +/** + * Provides BGPLSIdentifier Tlv which contains opaque value (32 Bit BGPLS-Identifier). + */ +public class BgpLSIdentifierTlv implements BgpValueType { + + /* Reference :draft-ietf-idr-ls-distribution-11 + * 0 1 2 3 + 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | Type= 513 | Length=4 | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | opaque value (32 Bit BGPLS-Identifier) | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + */ + + public static final short TYPE = 513; + public static final short LENGTH = 4; + + private final int bgpLsIdentifier; + + /** + * Constructor to initialize bgpLsIdentifier. + * + * @param bgpLsIdentifier BGPLS-Identifier + */ + public BgpLSIdentifierTlv(int bgpLsIdentifier) { + this.bgpLsIdentifier = bgpLsIdentifier; + } + + /** + * Returns object of this class with specified bgpLsIdentifier. + * + * @param bgpLsIdentifier BGPLS-Identifier + * @return BGPLS-Identifier + */ + public static BgpLSIdentifierTlv of(final int bgpLsIdentifier) { + return new BgpLSIdentifierTlv(bgpLsIdentifier); + } + + /** + * Returns opaque value of BGPLS-Identifier. + * + * @return opaque value of BGPLS-Identifier + */ + public int getBgpLsIdentifier() { + return bgpLsIdentifier; + } + + @Override + public int hashCode() { + return Objects.hash(bgpLsIdentifier); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + + if (obj instanceof BgpLSIdentifierTlv) { + BgpLSIdentifierTlv other = (BgpLSIdentifierTlv) obj; + return Objects.equals(bgpLsIdentifier, other.bgpLsIdentifier); + } + return false; + } + + @Override + public int write(ChannelBuffer c) { + int iLenStartIndex = c.writerIndex(); + c.writeShort(TYPE); + c.writeShort(LENGTH); + c.writeInt(bgpLsIdentifier); + return c.writerIndex() - iLenStartIndex; + } + + /** + * Reads the channel buffer and parses BGPLS Identifier TLV. + * + * @param cb ChannelBuffer + * @return object of BGPLSIdentifierTlv + */ + public static BgpLSIdentifierTlv read(ChannelBuffer cb) { + return BgpLSIdentifierTlv.of(cb.readInt()); + } + + @Override + public short getType() { + return TYPE; + } + + @Override + public int compareTo(Object o) { + if (this.equals(o)) { + return 0; + } + return ((Integer) (this.bgpLsIdentifier)).compareTo((Integer) (((BgpLSIdentifierTlv) o).bgpLsIdentifier)); + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()) + .add("Type", TYPE) + .add("Length", LENGTH) + .add("Value", bgpLsIdentifier) + .toString(); + } +}
\ No newline at end of file diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/BgpValueType.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/BgpValueType.java new file mode 100644 index 00000000..af7f4b75 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/BgpValueType.java @@ -0,0 +1,47 @@ +/* + * 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.bgpio.types; + +import org.jboss.netty.buffer.ChannelBuffer; + +/** + * Abstraction which Provides the BGP of TLV format. + */ +public interface BgpValueType { + /** + * Returns the Type of BGP Message. + * + * @return short value of type + */ + short getType(); + + /** + * Writes the byte Stream of BGP Message to channel buffer. + * + * @param cb channel buffer + * @return length written to channel buffer + */ + int write(ChannelBuffer cb); + + /** + * Compares two objects. + * + * @param o object + * @return result after comparing two objects + */ + int compareTo(Object o); +}
\ No newline at end of file diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/FourOctetAsNumCapabilityTlv.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/FourOctetAsNumCapabilityTlv.java new file mode 100644 index 00000000..59db3318 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/FourOctetAsNumCapabilityTlv.java @@ -0,0 +1,120 @@ +/*
+ * 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.bgpio.types;
+
+import java.util.Objects;
+
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.google.common.base.MoreObjects;
+
+/**
+ * Provides FourOctetAsNumCapabilityTlv Capability Tlv.
+ */
+public class FourOctetAsNumCapabilityTlv implements BgpValueType {
+
+ /**
+ * support to indicate its support for four-octet AS numbers -CAPABILITY TLV format.
+ */
+ protected static final Logger log = LoggerFactory
+ .getLogger(FourOctetAsNumCapabilityTlv.class);
+
+ public static final byte TYPE = 65;
+ public static final byte LENGTH = 4;
+
+ private final int rawValue;
+
+ /**
+ * constructor to initialize rawValue.
+ * @param rawValue FourOctetAsNumCapabilityTlv
+ */
+ public FourOctetAsNumCapabilityTlv(int rawValue) {
+ this.rawValue = rawValue;
+ }
+
+ /**
+ * constructor to initialize raw.
+ * @param raw AS number
+ * @return object of FourOctetAsNumCapabilityTlv
+ */
+ public static FourOctetAsNumCapabilityTlv of(final int raw) {
+ return new FourOctetAsNumCapabilityTlv(raw);
+ }
+
+ /**
+ * Returns value of TLV.
+ * @return int value of rawValue
+ */
+ public int getInt() {
+ return rawValue;
+ }
+
+ @Override
+ public short getType() {
+ return TYPE;
+ }
+
+ @Override
+ public int hashCode() {
+ return Objects.hash(rawValue);
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if (this == obj) {
+ return true;
+ }
+ if (obj instanceof FourOctetAsNumCapabilityTlv) {
+ FourOctetAsNumCapabilityTlv other = (FourOctetAsNumCapabilityTlv) obj;
+ return Objects.equals(rawValue, other.rawValue);
+ }
+ return false;
+ }
+
+ @Override
+ public int write(ChannelBuffer cb) {
+ int iLenStartIndex = cb.writerIndex();
+ cb.writeByte(TYPE);
+ cb.writeByte(LENGTH);
+ cb.writeInt(rawValue);
+ return cb.writerIndex() - iLenStartIndex;
+ }
+
+ /**
+ * Reads the channel buffer and returns object of FourOctetAsNumCapabilityTlv.
+ * @param cb type of channel buffer
+ * @return object of FourOctetAsNumCapabilityTlv
+ */
+ public static FourOctetAsNumCapabilityTlv read(ChannelBuffer cb) {
+ return FourOctetAsNumCapabilityTlv.of(cb.readInt());
+ }
+
+ @Override
+ public String toString() {
+ return MoreObjects.toStringHelper(getClass())
+ .add("Type", TYPE)
+ .add("Length", LENGTH)
+ .add("Value", rawValue).toString();
+ }
+
+ @Override
+ public int compareTo(Object o) {
+ // TODO Auto-generated method stub
+ return 0;
+ }
+}
diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/IPReachabilityInformationTlv.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/IPReachabilityInformationTlv.java new file mode 100644 index 00000000..d97537e8 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/IPReachabilityInformationTlv.java @@ -0,0 +1,165 @@ +/* + * 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.bgpio.types; + +import java.nio.ByteBuffer; +import java.util.Arrays; +import java.util.Objects; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onlab.packet.IpPrefix; +import org.onosproject.bgpio.util.Validation; + +import com.google.common.base.MoreObjects; + +/** + * Provides IP Reachability InformationTlv Tlv which contains IP Prefix. + */ +public class IPReachabilityInformationTlv implements BgpValueType { + + /* + * Reference :draft-ietf-idr-ls-distribution-11 + + 0 1 2 3 + 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | Type | Length | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | Prefix Length | IP Prefix (variable) // + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + + Figure 14: IP Reachability Information TLV Format + */ + + public static final short TYPE = 265; + public static final int ONE_BYTE_LEN = 8; + + private byte prefixLen; + private byte[] ipPrefix; + public short length; + + /** + * Constructor to initialize parameters. + * + * @param prefixLen length of IP Prefix + * @param ipPrefix IP Prefix + * @param length length of value field + */ + public IPReachabilityInformationTlv(byte prefixLen, byte[] ipPrefix, short length) { + this.ipPrefix = ipPrefix; + this.prefixLen = prefixLen; + this.length = length; + } + + /** + * Returns IP Prefix. + * + * @return IP Prefix + */ + public IpPrefix getPrefixValue() { + IpPrefix prefix = Validation.bytesToPrefix(ipPrefix, prefixLen); + return prefix; + } + + /** + * Returns IP Prefix length. + * + * @return IP Prefix length + */ + public byte getPrefixLen() { + return this.prefixLen; + } + + @Override + public int hashCode() { + return Objects.hash(Arrays.hashCode(ipPrefix), prefixLen); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + + if (obj instanceof IPReachabilityInformationTlv) { + IPReachabilityInformationTlv other = (IPReachabilityInformationTlv) obj; + return Objects.equals(prefixLen, other.prefixLen) && Arrays.equals(ipPrefix, other.ipPrefix); + } + return false; + } + + @Override + public int write(ChannelBuffer cb) { + int iLenStartIndex = cb.writerIndex(); + cb.writeShort(TYPE); + cb.writeShort(length); + cb.writeByte(prefixLen); + cb.writeBytes(ipPrefix); + return cb.writerIndex() - iLenStartIndex; + } + + /** + * Reads the channel buffer and returns object of IPReachabilityInformationTlv. + * + * @param cb ChannelBuffer + * @param length of value field + * @return object of IPReachabilityInformationTlv + */ + public static IPReachabilityInformationTlv read(ChannelBuffer cb, short length) { + byte preficLen = cb.readByte(); + byte[] prefix; + if (preficLen == 0) { + prefix = new byte[] {0}; + } else { + int len = preficLen / ONE_BYTE_LEN; + int reminder = preficLen % ONE_BYTE_LEN; + if (reminder > 0) { + len = len + 1; + } + prefix = new byte[len]; + cb.readBytes(prefix, 0, len); + } + return IPReachabilityInformationTlv.of(preficLen, prefix, length); + } + + public static IPReachabilityInformationTlv of(final byte preficLen, final byte[] prefix, final short length) { + return new IPReachabilityInformationTlv(preficLen, prefix, length); + } + @Override + public short getType() { + return TYPE; + } + + @Override + public int compareTo(Object o) { + if (this.equals(o)) { + return 0; + } + ByteBuffer value1 = ByteBuffer.wrap(this.ipPrefix); + ByteBuffer value2 = ByteBuffer.wrap(((IPReachabilityInformationTlv) o).ipPrefix); + return value1.compareTo(value2); + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()) + .add("Type", TYPE) + .add("Length", length) + .add("Prefixlength", getPrefixLen()) + .add("Prefixvalue", getPrefixValue()) + .toString(); + } +}
\ No newline at end of file diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/IPv4AddressTlv.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/IPv4AddressTlv.java new file mode 100644 index 00000000..4efde70e --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/IPv4AddressTlv.java @@ -0,0 +1,133 @@ +/* + * 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.bgpio.types; + +import java.net.InetAddress; +import java.util.Objects; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onlab.packet.Ip4Address; +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.util.Validation; + +import com.google.common.base.MoreObjects; +import com.google.common.base.Preconditions; + +/** + * Provides Implementation of IPv4AddressTlv. + */ +public class IPv4AddressTlv implements BgpValueType { + private static final int LENGTH = 4; + + private Ip4Address address; + private short type; + + /** + * Constructor to initialize parameters. + * + * @param address Ipv4 address of interface/neighbor + * @param type address type + */ + public IPv4AddressTlv(Ip4Address address, short type) { + this.address = Preconditions.checkNotNull(address); + this.type = type; + } + + /** + * Returns Ipv4 address of interface/neighbor. + * + * @return Ipv4 address of interface/neighbor + */ + public Ip4Address address() { + return address; + } + + @Override + public short getType() { + return this.type; + } + + @Override + public int hashCode() { + return Objects.hash(address); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + if (obj instanceof IPv4AddressTlv) { + IPv4AddressTlv other = (IPv4AddressTlv) obj; + return Objects.equals(this.address, other.address) && Objects.equals(this.type, other.type); + } + return false; + } + + @Override + public int write(ChannelBuffer cb) { + int iLenStartIndex = cb.writerIndex(); + cb.writeShort(type); + cb.writeShort(LENGTH); + cb.writeInt(address.toInt()); + return cb.writerIndex() - iLenStartIndex; + } + + /** + * Reads the channel buffer and returns object of IPv4AddressTlv. + * + * @param cb channelBuffer + * @param type address type + * @return object of IPv4AddressTlv + * @throws BgpParseException while parsing IPv4AddressTlv + */ + public static IPv4AddressTlv read(ChannelBuffer cb, short type) throws BgpParseException { + InetAddress ipAddress = Validation.toInetAddress(LENGTH, cb); + if (ipAddress.isMulticastAddress()) { + throw new BgpParseException(BgpErrorType.UPDATE_MESSAGE_ERROR, (byte) 0, null); + } + Ip4Address address = Ip4Address.valueOf(ipAddress); + return IPv4AddressTlv.of(address, type); + } + + /** + * Returns object of this class with specified values. + * + * @param address Ipv4 interface/neighbor Address + * @param type says Ipv4 address of interface/neighbor tlv type + * @return object of this class + */ + public static IPv4AddressTlv of(final Ip4Address address , final short type) { + return new IPv4AddressTlv(address, type); + } + + @Override + public int compareTo(Object o) { + if (this.equals(o)) { + return 0; + } + return ((Ip4Address) (this.address)).compareTo((Ip4Address) (((IPv4AddressTlv) o).address)); + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()) + .add("type", type) + .add("LENGTH", LENGTH) + .add("address", address) + .toString(); + } +}
\ No newline at end of file diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/IPv6AddressTlv.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/IPv6AddressTlv.java new file mode 100644 index 00000000..087cd5c6 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/IPv6AddressTlv.java @@ -0,0 +1,133 @@ +/* + * 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.bgpio.types; + +import java.net.InetAddress; +import java.util.Objects; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onlab.packet.Ip6Address; +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.util.Validation; + +import com.google.common.base.MoreObjects; +import com.google.common.base.Preconditions; + +/** + * Provides Implementation of IPv6AddressTlv. + */ +public class IPv6AddressTlv implements BgpValueType { + private static final int LENGTH = 16; + + private final Ip6Address address; + private short type; + + /** + * Constructor to initialize parameters. + * + * @param address Ipv6 address of interface/neighbor + * @param type address type + */ + public IPv6AddressTlv(Ip6Address address, short type) { + this.address = Preconditions.checkNotNull(address); + this.type = type; + } + + /** + * Returns Ipv6 address of interface/neighbor. + * + * @return Ipv6 address of interface/neighbor + */ + public Ip6Address address() { + return address; + } + + @Override + public short getType() { + return type; + } + + @Override + public int hashCode() { + return Objects.hash(address); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + if (obj instanceof IPv6AddressTlv) { + IPv6AddressTlv other = (IPv6AddressTlv) obj; + return Objects.equals(this.address, other.address) && Objects.equals(this.type, other.type); + } + return false; + } + + @Override + public int write(ChannelBuffer cb) { + int iLenStartIndex = cb.writerIndex(); + cb.writeShort(type); + cb.writeShort(LENGTH); + cb.writeBytes(address.toOctets()); + return cb.writerIndex() - iLenStartIndex; + } + + /** + * Reads the channel buffer and returns object of IPv6AddressTlv. + * + * @param cb channelBuffer + * @param type address type + * @return object of IPv6AddressTlv + * @throws BgpParseException while parsing IPv6AddressTlv + */ + public static IPv6AddressTlv read(ChannelBuffer cb, short type) throws BgpParseException { + InetAddress ipAddress = Validation.toInetAddress(LENGTH, cb); + if (ipAddress.isMulticastAddress()) { + throw new BgpParseException(BgpErrorType.UPDATE_MESSAGE_ERROR, (byte) 0, null); + } + Ip6Address address = Ip6Address.valueOf(ipAddress); + return IPv6AddressTlv.of(address, type); + } + + /** + * Returns object of this class with specified values. + * + * @param address Ipv6 interface/neighbor address + * @param type says Ipv6 address of interface/neighbor tlv type + * @return object of this class + */ + public static IPv6AddressTlv of(final Ip6Address address , final short type) { + return new IPv6AddressTlv(address, type); + } + + @Override + public int compareTo(Object o) { + if (this.equals(o)) { + return 0; + } + return ((Ip6Address) (this.address)).compareTo((Ip6Address) (((IPv6AddressTlv) o).address)); + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()) + .add("type", type) + .add("LENGTH", LENGTH) + .add("address", address) + .toString(); + } +}
\ No newline at end of file diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/IsIsNonPseudonode.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/IsIsNonPseudonode.java new file mode 100644 index 00000000..427aa929 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/IsIsNonPseudonode.java @@ -0,0 +1,124 @@ +/* + * 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.bgpio.types; + +import java.nio.ByteBuffer; +import java.util.Arrays; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.bgpio.protocol.IGPRouterID; + +import com.google.common.base.MoreObjects; + +/** + * Provides Implementation of IsIsNonPseudonode Tlv. + */ +public class IsIsNonPseudonode implements IGPRouterID, BgpValueType { + public static final short TYPE = 515; + public static final short LENGTH = 6; + + private final byte[] isoNodeID; + + /** + * Constructor to initialize isoNodeID. + * + * @param isoNodeID ISO system-ID + */ + public IsIsNonPseudonode(byte[] isoNodeID) { + this.isoNodeID = Arrays.copyOf(isoNodeID, isoNodeID.length); + } + + /** + * Returns object of this class with specified isoNodeID. + * + * @param isoNodeID ISO system-ID + * @return object of IsIsNonPseudonode + */ + public static IsIsNonPseudonode of(final byte[] isoNodeID) { + return new IsIsNonPseudonode(isoNodeID); + } + + /** + * Returns ISO NodeID. + * + * @return ISO NodeID + */ + public byte[] getISONodeID() { + return isoNodeID; + } + + @Override + public int hashCode() { + return Arrays.hashCode(isoNodeID); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + if (obj instanceof IsIsNonPseudonode) { + IsIsNonPseudonode other = (IsIsNonPseudonode) obj; + return Arrays.equals(isoNodeID, other.isoNodeID); + } + return false; + } + + @Override + public int write(ChannelBuffer c) { + int iLenStartIndex = c.writerIndex(); + c.writeShort(TYPE); + c.writeShort(LENGTH); + c.writeBytes(isoNodeID); + return c.writerIndex() - iLenStartIndex; + } + + /** + * Reads the channel buffer and returns object of IsIsNonPseudonode. + * + * @param cb ChannelBuffer + * @return object of IsIsNonPseudonode + */ + public static IsIsNonPseudonode read(ChannelBuffer cb) { + byte[] isoNodeID = new byte[LENGTH]; + cb.readBytes(isoNodeID); + return IsIsNonPseudonode.of(isoNodeID); + } + + @Override + public short getType() { + return TYPE; + } + + @Override + public int compareTo(Object o) { + if (this.equals(o)) { + return 0; + } + ByteBuffer value1 = ByteBuffer.wrap(this.isoNodeID); + ByteBuffer value2 = ByteBuffer.wrap(((IsIsNonPseudonode) o).isoNodeID); + return value1.compareTo(value2); + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()) + .add("Type", TYPE) + .add("Length", LENGTH) + .add("ISONodeID", isoNodeID) + .toString(); + } +}
\ No newline at end of file diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/IsIsPseudonode.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/IsIsPseudonode.java new file mode 100644 index 00000000..094c4382 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/IsIsPseudonode.java @@ -0,0 +1,146 @@ +/* + * 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.bgpio.types; + +import java.nio.ByteBuffer; +import java.util.Arrays; +import java.util.Objects; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.bgpio.protocol.IGPRouterID; + +import com.google.common.base.MoreObjects; + +/** + * Provides implementation of IsIsPseudonode Tlv. + */ +public class IsIsPseudonode implements IGPRouterID, BgpValueType { + public static final short TYPE = 515; + public static final short LENGTH = 7; + + private final byte[] isoNodeID; + private byte psnIdentifier; + + /** + * Constructor to initialize isoNodeID. + * + * @param isoNodeID ISO system-ID + * @param psnIdentifier PSN identifier + */ + public IsIsPseudonode(byte[] isoNodeID, byte psnIdentifier) { + this.isoNodeID = Arrays.copyOf(isoNodeID, isoNodeID.length); + this.psnIdentifier = psnIdentifier; + } + + /** + * Returns object of this class with specified values. + * + * @param isoNodeID ISO system-ID + * @param psnIdentifier PSN identifier + * @return object of IsIsPseudonode + */ + public static IsIsPseudonode of(final byte[] isoNodeID, + final byte psnIdentifier) { + return new IsIsPseudonode(isoNodeID, psnIdentifier); + } + + /** + * Returns ISO NodeID. + * + * @return ISO NodeID + */ + public byte[] getISONodeID() { + return isoNodeID; + } + + /** + * Returns PSN Identifier. + * + * @return PSN Identifier + */ + public byte getPSNIdentifier() { + return this.psnIdentifier; + } + + @Override + public int hashCode() { + return Arrays.hashCode(isoNodeID) & Objects.hash(psnIdentifier); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + if (obj instanceof IsIsPseudonode) { + IsIsPseudonode other = (IsIsPseudonode) obj; + return Arrays.equals(isoNodeID, other.isoNodeID) + && Objects.equals(psnIdentifier, other.psnIdentifier); + } + return false; + } + + @Override + public int write(ChannelBuffer c) { + int iLenStartIndex = c.writerIndex(); + c.writeShort(TYPE); + c.writeShort(LENGTH); + c.writeBytes(isoNodeID, 0, LENGTH - 1); + c.writeByte(psnIdentifier); + return c.writerIndex() - iLenStartIndex; + } + + /** + * Reads the channel buffer and returns object of IsIsPseudonode. + * + * @param cb ChannelBuffer + * @return object of IsIsPseudonode + */ + public static IsIsPseudonode read(ChannelBuffer cb) { + byte[] isoNodeID = new byte[LENGTH - 1]; + cb.readBytes(isoNodeID); + byte psnIdentifier = cb.readByte(); + return IsIsPseudonode.of(isoNodeID, psnIdentifier); + } + + @Override + public short getType() { + return TYPE; + } + + @Override + public int compareTo(Object o) { + if (this.equals(o)) { + return 0; + } + ByteBuffer value1 = ByteBuffer.wrap(this.isoNodeID); + ByteBuffer value2 = ByteBuffer.wrap(((IsIsPseudonode) o).isoNodeID); + if (value1.compareTo(value2) != 0) { + return value1.compareTo(value2); + } + return ((Byte) (this.psnIdentifier)).compareTo((Byte) (((IsIsPseudonode) o).psnIdentifier)); + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()) + .add("Type", TYPE) + .add("Length", LENGTH) + .add("isoNodeID", isoNodeID) + .add("psnIdentifier", psnIdentifier) + .toString(); + } +}
\ No newline at end of file diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/LinkLocalRemoteIdentifiersTlv.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/LinkLocalRemoteIdentifiersTlv.java new file mode 100644 index 00000000..0c412432 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/LinkLocalRemoteIdentifiersTlv.java @@ -0,0 +1,142 @@ +/* + * 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.bgpio.types; + +import java.util.Objects; + +import org.jboss.netty.buffer.ChannelBuffer; + +import com.google.common.base.MoreObjects; + +/** + * Provides Implementation of Link Local/Remote IdentifiersTlv. + */ +public class LinkLocalRemoteIdentifiersTlv implements BgpValueType { + public static final short TYPE = 258; + private static final int LENGTH = 8; + + private final int linkLocalIdentifer; + private final int linkRemoteIdentifer; + + /** + * Constructor to initialize parameters. + * + * @param linkLocalIdentifer link local Identifer + * @param linkRemoteIdentifer link remote Identifer + */ + public LinkLocalRemoteIdentifiersTlv(int linkLocalIdentifer, int linkRemoteIdentifer) { + this.linkLocalIdentifer = linkLocalIdentifer; + this.linkRemoteIdentifer = linkRemoteIdentifer; + } + + /** + * Returns link remote Identifer. + * + * @return link remote Identifer + */ + public int getLinkRemoteIdentifier() { + return linkRemoteIdentifer; + } + + /** + * Returns link local Identifer. + * + * @return link local Identifer + */ + public int getLinkLocalIdentifier() { + return linkLocalIdentifer; + } + + @Override + public short getType() { + return TYPE; + } + + @Override + public int hashCode() { + return Objects.hash(linkLocalIdentifer, linkRemoteIdentifer); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + if (obj instanceof LinkLocalRemoteIdentifiersTlv) { + LinkLocalRemoteIdentifiersTlv other = (LinkLocalRemoteIdentifiersTlv) obj; + return Objects.equals(this.linkLocalIdentifer, other.linkLocalIdentifer) + && Objects.equals(this.linkRemoteIdentifer, other.linkRemoteIdentifer); + } + return false; + } + + @Override + public int write(ChannelBuffer cb) { + int iLenStartIndex = cb.writerIndex(); + cb.writeShort(TYPE); + cb.writeShort(LENGTH); + cb.writeInt(linkLocalIdentifer); + cb.writeInt(linkRemoteIdentifer); + return cb.writerIndex() - iLenStartIndex; + } + + /** + * Reads the channel buffer and returns object of LinkLocalRemoteIdentifiersTlv. + * + * @param cb channelBuffer + * @return object of LinkLocalRemoteIdentifiersTlv + */ + public static LinkLocalRemoteIdentifiersTlv read(ChannelBuffer cb) { + int linkLocalIdentifer = cb.readInt(); + int linkRemoteIdentifer = cb.readInt(); + return LinkLocalRemoteIdentifiersTlv.of(linkLocalIdentifer, linkRemoteIdentifer); + } + + /** + * Returns object of this class with specified link local identifer and link remote identifer. + * + * @param linkLocalIdentifer link local identifier + * @param linkRemoteIdentifer link remote identifier + * @return object of LinkLocalRemoteIdentifiersTlv + */ + public static LinkLocalRemoteIdentifiersTlv of(final int linkLocalIdentifer, final int linkRemoteIdentifer) { + return new LinkLocalRemoteIdentifiersTlv(linkLocalIdentifer, linkRemoteIdentifer); + } + + @Override + public int compareTo(Object o) { + if (this.equals(o)) { + return 0; + } + int result = ((Integer) (this.linkLocalIdentifer)) + .compareTo((Integer) (((LinkLocalRemoteIdentifiersTlv) o).linkLocalIdentifer)); + if (result != 0) { + return result; + } + return ((Integer) (this.linkRemoteIdentifer)) + .compareTo((Integer) (((LinkLocalRemoteIdentifiersTlv) o).linkRemoteIdentifer)); + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()) + .add("TYPE", TYPE) + .add("LENGTH", LENGTH) + .add("linkLocalIdentifer", linkLocalIdentifer) + .add("linkRemoteIdentifer", linkRemoteIdentifer) + .toString(); + } +}
\ No newline at end of file diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/LinkStateAttributes.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/LinkStateAttributes.java new file mode 100644 index 00000000..cdf6ebeb --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/LinkStateAttributes.java @@ -0,0 +1,314 @@ +/* + * 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.bgpio.types; + +import java.util.LinkedList; +import java.util.List; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.types.attr.BgpAttrNodeFlagBitTlv; +import org.onosproject.bgpio.types.attr.BgpAttrNodeIsIsAreaId; +import org.onosproject.bgpio.types.attr.BgpAttrNodeMultiTopologyId; +import org.onosproject.bgpio.types.attr.BgpAttrNodeName; +import org.onosproject.bgpio.types.attr.BgpAttrOpaqueNode; +import org.onosproject.bgpio.types.attr.BgpAttrRouterIdV4; +import org.onosproject.bgpio.types.attr.BgpAttrRouterIdV6; +import org.onosproject.bgpio.types.attr.BgpLinkAttrIgpMetric; +import org.onosproject.bgpio.types.attr.BgpLinkAttrIsIsAdminstGrp; +import org.onosproject.bgpio.types.attr.BgpLinkAttrMplsProtocolMask; +import org.onosproject.bgpio.types.attr.BgpLinkAttrMaxLinkBandwidth; +import org.onosproject.bgpio.types.attr.BgpLinkAttrName; +import org.onosproject.bgpio.types.attr.BgpLinkAttrOpaqLnkAttrib; +import org.onosproject.bgpio.types.attr.BgpLinkAttrProtectionType; +import org.onosproject.bgpio.types.attr.BgpLinkAttrSrlg; +import org.onosproject.bgpio.types.attr.BgpLinkAttrTeDefaultMetric; +import org.onosproject.bgpio.types.attr.BgpLinkAttrUnRsrvdLinkBandwidth; +import org.onosproject.bgpio.types.attr.BgpPrefixAttrExtRouteTag; +import org.onosproject.bgpio.types.attr.BgpPrefixAttrIgpFlags; +import org.onosproject.bgpio.types.attr.BgpPrefixAttrMetric; +import org.onosproject.bgpio.types.attr.BgpPrefixAttrOspfFwdAddr; +import org.onosproject.bgpio.types.attr.BgpPrefixAttrOpaqueData; +import org.onosproject.bgpio.types.attr.BgpPrefixAttrRouteTag; +import org.onosproject.bgpio.util.Validation; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.common.base.MoreObjects; + +/** + * Implements BGP Link state attribute. + */ +public class LinkStateAttributes implements BgpValueType { + + protected static final Logger log = LoggerFactory + .getLogger(LinkStateAttributes.class); + + /* Node Attributes */ + public static final short ATTR_NODE_MT_TOPOLOGY_ID = 263; + public static final short ATTR_NODE_FLAG_BITS = 1024; + public static final short ATTR_NODE_OPAQUE_NODE = 1025; + public static final short ATTR_NODE_NAME = 1026; + public static final short ATTR_NODE_ISIS_AREA_ID = 1027; + public static final short ATTR_NODE_IPV4_LOCAL_ROUTER_ID = 1028; + public static final short ATTR_NODE_IPV6_LOCAL_ROUTER_ID = 1029; + + /* Link Attributes */ + public static final short ATTR_LINK_IPV4_REMOTE_ROUTER_ID = 1030; + public static final short ATTR_LINK_IPV6_REMOTE_ROUTER_ID = 1031; + public static final short ATTR_LINK_ADMINISTRATIVE_GRPS = 1088; + public static final short ATTR_LINK_MAX_BANDWIDTH = 1089; + public static final short ATTR_LINK_MAX_RES_BANDWIDTH = 1090; + public static final short ATTR_LINK_UNRES_BANDWIDTH = 1091; + public static final short ATTR_LINK_TE_DEFAULT_METRIC = 1092; + public static final short ATTR_LINK_PROTECTION_TYPE = 1093; + public static final short ATTR_LINK_MPLS_PROTOCOL_MASK = 1094; + public static final short ATTR_LINK_IGP_METRIC = 1095; + public static final short ATTR_LINK_SHR_RISK_GRP = 1096; + public static final short ATTR_LINK_OPAQUE_ATTR = 1097; + public static final short ATTR_LINK_NAME_ATTR = 1098; + + /* Prefix Attributes */ + public static final short ATTR_PREFIX_IGP_FLAG = 1152; + public static final short ATTR_PREFIX_ROUTE_TAG = 1153; + public static final short ATTR_PREFIX_EXTENDED_TAG = 1154; + public static final short ATTR_PREFIX_METRIC = 1155; + public static final short ATTR_PREFIX_OSPF_FWD_ADDR = 1156; + public static final short ATTR_PREFIX_OPAQUE_ATTR = 1157; + + public static final byte LINKSTATE_ATTRIB_TYPE = 50; + public static final byte TYPE_AND_LEN = 4; + private boolean isLinkStateAttribute = false; + private List<BgpValueType> linkStateAttribList; + + /** + * Constructor to reset parameters. + */ + LinkStateAttributes() { + this.linkStateAttribList = null; + } + + /** + * Constructor to initialize parameters. + * + * @param linkStateAttribList Linked list of Link, Node and Prefix TLVs + */ + LinkStateAttributes(List<BgpValueType> linkStateAttribList) { + this.linkStateAttribList = linkStateAttribList; + this.isLinkStateAttribute = true; + } + + /** + * Returns linked list of Link, Node and Prefix TLVs. + * + * @return linked list of Link, Node and Prefix TLVs + */ + public List<BgpValueType> linkStateAttributes() { + return this.linkStateAttribList; + } + + /** + * Returns if the Link state attributes are set or not. + * + * @return a boolean value to to check if the LS attributes are set or not + */ + public boolean isLinkStateAttributeSet() { + return this.isLinkStateAttribute; + } + + /** + * Reads the Link state attribute TLVs. + * + * @param cb ChannelBuffer + * @return constructor of LinkStateAttributes + * @throws BgpParseException while parsing link state attributes + */ + public static LinkStateAttributes read(ChannelBuffer cb) + throws BgpParseException { + + ChannelBuffer tempBuf = cb; + Validation parseFlags = Validation.parseAttributeHeader(cb); + int len = parseFlags.isShort() ? parseFlags.getLength() + TYPE_AND_LEN + : parseFlags.getLength() + 3; + + ChannelBuffer data = tempBuf.readBytes(len); + if (!parseFlags.getFirstBit() || parseFlags.getSecondBit() + || parseFlags.getThirdBit()) { + throw new BgpParseException(BgpErrorType.UPDATE_MESSAGE_ERROR, + BgpErrorType.ATTRIBUTE_FLAGS_ERROR, + data); + } + + if (cb.readableBytes() < parseFlags.getLength()) { + Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, + BgpErrorType.BAD_MESSAGE_LENGTH, + parseFlags.getLength()); + } + + BgpValueType bgpLSAttrib = null; + LinkedList<BgpValueType> linkStateAttribList; + linkStateAttribList = new LinkedList<BgpValueType>(); + ChannelBuffer tempCb = cb.readBytes(parseFlags.getLength()); + while (tempCb.readableBytes() > 0) { + short tlvCodePoint = tempCb.readShort(); + switch (tlvCodePoint) { + + /********* 7 NODE ATTRIBUTES ********/ + case ATTR_NODE_MT_TOPOLOGY_ID: /* 263 Multi-Topology Identifier*/ + bgpLSAttrib = BgpAttrNodeMultiTopologyId.read(tempCb); + break; + + case ATTR_NODE_FLAG_BITS: /*Node flag bit TLV*/ + bgpLSAttrib = BgpAttrNodeFlagBitTlv.read(tempCb); + break; + + case ATTR_NODE_OPAQUE_NODE: /*Opaque Node Attribute*/ + bgpLSAttrib = BgpAttrOpaqueNode.read(tempCb); + break; + + case ATTR_NODE_NAME: /*Node Name*/ + bgpLSAttrib = BgpAttrNodeName.read(tempCb); + break; + + case ATTR_NODE_ISIS_AREA_ID: /*IS-IS Area Identifier TLV*/ + bgpLSAttrib = BgpAttrNodeIsIsAreaId.read(tempCb); + break; + + case ATTR_NODE_IPV4_LOCAL_ROUTER_ID: /*IPv4 Router-ID of Local Node*/ + bgpLSAttrib = BgpAttrRouterIdV4.read(tempCb, (short) ATTR_NODE_IPV4_LOCAL_ROUTER_ID); + break; + + case ATTR_NODE_IPV6_LOCAL_ROUTER_ID: /*IPv6 Router-ID of Local Node*/ + bgpLSAttrib = BgpAttrRouterIdV6.read(tempCb, (short) ATTR_NODE_IPV6_LOCAL_ROUTER_ID); + break; + + /********* 15 LINK ATTRIBUTES ********/ + + case ATTR_LINK_IPV4_REMOTE_ROUTER_ID: /*IPv4 Router-ID of Remote Node*/ + bgpLSAttrib = BgpAttrRouterIdV4.read(tempCb, (short) 1030); + break; + + case ATTR_LINK_IPV6_REMOTE_ROUTER_ID: /*IPv6 Router-ID of Remote Node*/ + bgpLSAttrib = BgpAttrRouterIdV6.read(tempCb, (short) 1031); + break; + + case ATTR_LINK_ADMINISTRATIVE_GRPS: /*ISIS Administrative group STLV 3*/ + bgpLSAttrib = BgpLinkAttrIsIsAdminstGrp.read(tempCb); + break; + + case ATTR_LINK_MAX_BANDWIDTH: /*Maximum link bandwidth*/ + bgpLSAttrib = BgpLinkAttrMaxLinkBandwidth.read(tempCb, + (short) 1089); + break; + + case ATTR_LINK_MAX_RES_BANDWIDTH: /* Maximum Reservable link bandwidth */ + bgpLSAttrib = BgpLinkAttrMaxLinkBandwidth.read(tempCb, + (short) 1090); + break; + + case ATTR_LINK_UNRES_BANDWIDTH: /* UnReserved link bandwidth */ + bgpLSAttrib = BgpLinkAttrUnRsrvdLinkBandwidth + .read(tempCb, (short) 1091); + break; + + case ATTR_LINK_TE_DEFAULT_METRIC: /* TE Default Metric */ + bgpLSAttrib = BgpLinkAttrTeDefaultMetric.read(tempCb); + break; + + case ATTR_LINK_PROTECTION_TYPE:/* Link Protection type */ + bgpLSAttrib = BgpLinkAttrProtectionType.read(tempCb); + break; + + case ATTR_LINK_MPLS_PROTOCOL_MASK: /* MPLS Protocol Mask */ + bgpLSAttrib = BgpLinkAttrMplsProtocolMask.read(tempCb); // 2 + break; + + case ATTR_LINK_IGP_METRIC: /* IGP Metric */ + bgpLSAttrib = BgpLinkAttrIgpMetric.read(tempCb); // 2 + break; + + case ATTR_LINK_SHR_RISK_GRP: /* Shared Risk Link Group */ + bgpLSAttrib = BgpLinkAttrSrlg.read(tempCb); // 3 + break; + + case ATTR_LINK_OPAQUE_ATTR: /* Opaque link attribute */ + bgpLSAttrib = BgpLinkAttrOpaqLnkAttrib.read(tempCb); + break; + + case ATTR_LINK_NAME_ATTR: /* Link Name attribute */ + bgpLSAttrib = BgpLinkAttrName.read(tempCb); + break; + + /********* 6 PREFIX ATTRIBUTES ********/ + + case ATTR_PREFIX_IGP_FLAG: /* IGP Flags */ + bgpLSAttrib = BgpPrefixAttrIgpFlags.read(tempCb); + break; + + case ATTR_PREFIX_ROUTE_TAG: /* Route Tag */ + bgpLSAttrib = BgpPrefixAttrRouteTag.read(tempCb); + break; + + case ATTR_PREFIX_EXTENDED_TAG: /* Extended Tag */ + bgpLSAttrib = BgpPrefixAttrExtRouteTag.read(tempCb); + break; + + case ATTR_PREFIX_METRIC: /* Prefix Metric */ + bgpLSAttrib = BgpPrefixAttrMetric.read(tempCb); + break; + + case ATTR_PREFIX_OSPF_FWD_ADDR: /* OSPF Forwarding Address */ + bgpLSAttrib = BgpPrefixAttrOspfFwdAddr.read(tempCb); + break; + + case ATTR_PREFIX_OPAQUE_ATTR: /* Opaque Prefix Attribute */ + bgpLSAttrib = BgpPrefixAttrOpaqueData.read(tempCb); + break; + + default: + throw new BgpParseException( + "The Bgp-LS Attribute is not supported : " + + tlvCodePoint); + } + + linkStateAttribList.add(bgpLSAttrib); + } + return new LinkStateAttributes(linkStateAttribList); + } + + @Override + public short getType() { + return LINKSTATE_ATTRIB_TYPE; + } + + @Override + public int write(ChannelBuffer cb) { + // TODO This will be implemented in the next version + return 0; + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()).omitNullValues() + .add("linkStateAttribList", linkStateAttribList).toString(); + } + + @Override + public int compareTo(Object o) { + // TODO Auto-generated method stub + return 0; + } +} diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/LocalPref.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/LocalPref.java new file mode 100644 index 00000000..36793c18 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/LocalPref.java @@ -0,0 +1,121 @@ +/* + * 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.bgpio.types; + +import java.util.Objects; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.util.Constants; +import org.onosproject.bgpio.util.Validation; + +import com.google.common.base.MoreObjects; + +/** + * Provides implementation of LocalPref BGP Path Attribute. + */ +public class LocalPref implements BgpValueType { + public static final byte LOCAL_PREF_TYPE = 5; + public static final byte LOCAL_PREF_MAX_LEN = 4; + + private int localPref; + + /** + * Constructor to initialize LocalPref. + * + * @param localPref local preference + */ + public LocalPref(int localPref) { + this.localPref = localPref; + } + + /** + * Returns local preference value. + * + * @return local preference value + */ + public int localPref() { + return this.localPref; + } + + /** + * Reads the channel buffer and returns object of LocalPref. + * + * @param cb channelBuffer + * @return object of LocalPref + * @throws BgpParseException while parsing localPref attribute + */ + public static LocalPref read(ChannelBuffer cb) throws BgpParseException { + int localPref; + ChannelBuffer tempCb = cb.copy(); + Validation parseFlags = Validation.parseAttributeHeader(cb); + if ((parseFlags.getLength() > LOCAL_PREF_MAX_LEN) || cb.readableBytes() < parseFlags.getLength()) { + Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, BgpErrorType.ATTRIBUTE_LENGTH_ERROR, + parseFlags.getLength()); + } + + int len = parseFlags.isShort() ? parseFlags.getLength() + + Constants.TYPE_AND_LEN_AS_SHORT : parseFlags.getLength() + Constants.TYPE_AND_LEN_AS_BYTE; + ChannelBuffer data = tempCb.readBytes(len); + if (parseFlags.getFirstBit()) { + throw new BgpParseException(BgpErrorType.UPDATE_MESSAGE_ERROR, BgpErrorType.ATTRIBUTE_FLAGS_ERROR, data); + } + + localPref = cb.readInt(); + return new LocalPref(localPref); + } + + @Override + public short getType() { + return LOCAL_PREF_TYPE; + } + + @Override + public int hashCode() { + return Objects.hash(localPref); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + if (obj instanceof LocalPref) { + LocalPref other = (LocalPref) obj; + return Objects.equals(localPref, other.localPref); + } + return false; + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()) + .add("localPref", localPref) + .toString(); + } + + @Override + public int write(ChannelBuffer cb) { + //Not to implement as of now + return 0; + } + + @Override + public int compareTo(Object o) { + // TODO Auto-generated method stub + return 0; + } +}
\ No newline at end of file diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/Med.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/Med.java new file mode 100644 index 00000000..7f1ab53f --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/Med.java @@ -0,0 +1,121 @@ +/* + * 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.bgpio.types; + +import java.util.Objects; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.util.Constants; +import org.onosproject.bgpio.util.Validation; + +import com.google.common.base.MoreObjects; + +/** + * Provides Implementation of Med BGP Path Attribute. + */ +public class Med implements BgpValueType { + public static final byte MED_TYPE = 4; + public static final byte MED_MAX_LEN = 4; + + private int med; + + /** + * Constructor to initialize med. + * + * @param med MULTI_EXIT_DISC value + */ + public Med(int med) { + this.med = med; + } + + /** + * Returns Med value. + * + * @return Med value + */ + public int med() { + return this.med; + } + + /** + * Reads the channel buffer and returns object of Med. + * + * @param cb ChannelBuffer + * @return object of Med + * @throws BgpParseException while parsing Med path attribute + */ + public static Med read(ChannelBuffer cb) throws BgpParseException { + int med; + ChannelBuffer tempCb = cb.copy(); + Validation parseFlags = Validation.parseAttributeHeader(cb); + + if ((parseFlags.getLength() > MED_MAX_LEN) || cb.readableBytes() < parseFlags.getLength()) { + Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, BgpErrorType.ATTRIBUTE_LENGTH_ERROR, + parseFlags.getLength()); + } + int len = parseFlags.isShort() ? parseFlags.getLength() + Constants.TYPE_AND_LEN_AS_SHORT : parseFlags + .getLength() + Constants.TYPE_AND_LEN_AS_BYTE; + ChannelBuffer data = tempCb.readBytes(len); + if (!parseFlags.getFirstBit() && parseFlags.getSecondBit() && parseFlags.getThirdBit()) { + throw new BgpParseException(BgpErrorType.UPDATE_MESSAGE_ERROR, BgpErrorType.ATTRIBUTE_FLAGS_ERROR, data); + } + + med = cb.readInt(); + return new Med(med); + } + + @Override + public short getType() { + return MED_TYPE; + } + + @Override + public int hashCode() { + return Objects.hash(med); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + if (obj instanceof Med) { + Med other = (Med) obj; + return Objects.equals(med, other.med); + } + return false; + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()) + .add("med", med) + .toString(); + } + + @Override + public int write(ChannelBuffer cb) { + //Not to implement as of now + return 0; + } + + @Override + public int compareTo(Object o) { + // TODO Auto-generated method stub + return 0; + } +}
\ No newline at end of file diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/MpReachNlri.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/MpReachNlri.java new file mode 100644 index 00000000..2e4e6599 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/MpReachNlri.java @@ -0,0 +1,225 @@ +/* + * 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.bgpio.types; + +import java.net.InetAddress; +import java.util.LinkedList; +import java.util.List; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onlab.packet.Ip4Address; +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.protocol.BgpLSNlri; +import org.onosproject.bgpio.protocol.linkstate.BgpPrefixIPv4LSNlriVer4; +import org.onosproject.bgpio.protocol.linkstate.BgpNodeLSNlriVer4; +import org.onosproject.bgpio.protocol.linkstate.BgpLinkLsNlriVer4; +import org.onosproject.bgpio.util.Constants; +import org.onosproject.bgpio.util.Validation; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.common.base.MoreObjects; + +/* + * Provides Implementation of MpReach Nlri BGP Path Attribute. + */ +public class MpReachNlri implements BgpValueType { + + private static final Logger log = LoggerFactory.getLogger(MpReachNlri.class); + public static final byte MPREACHNLRI_TYPE = 14; + public static final byte LINK_NLRITYPE = 2; + + private boolean isMpReachNlri = false; + private final List<BgpLSNlri> mpReachNlri; + private final int length; + private final short afi; + private final byte safi; + private final Ip4Address ipNextHop; + + /** + * Constructor to initialize parameters. + * + * @param mpReachNlri MpReach Nlri attribute + * @param afi address family identifier + * @param safi subsequent address family identifier + * @param ipNextHop nexthop IpAddress + * @param length of MpReachNlri + */ + public MpReachNlri(List<BgpLSNlri> mpReachNlri, short afi, byte safi, Ip4Address ipNextHop, int length) { + this.mpReachNlri = mpReachNlri; + this.isMpReachNlri = true; + this.ipNextHop = ipNextHop; + this.afi = afi; + this.safi = safi; + this.length = length; + } + + /** + * Returns whether MpReachNlri is present. + * + * @return whether MpReachNlri is present + */ + public boolean isMpReachNlriSet() { + return this.isMpReachNlri; + } + + /** + * Returns list of MpReach Nlri. + * + * @return list of MpReach Nlri + */ + public List<BgpLSNlri> mpReachNlri() { + return this.mpReachNlri; + } + + /** + * Returns length of MpReachNlri. + * + * @return length of MpReachNlri + */ + public int mpReachNlriLen() { + return this.length; + } + + /** + * Reads from ChannelBuffer and parses MpReachNlri. + * + * @param cb channelBuffer + * @return object of MpReachNlri + * @throws BgpParseException while parsing MpReachNlri + */ + public static MpReachNlri read(ChannelBuffer cb) throws BgpParseException { + ChannelBuffer tempBuf = cb.copy(); + Validation parseFlags = Validation.parseAttributeHeader(cb); + int len = parseFlags.isShort() ? parseFlags.getLength() + Constants.TYPE_AND_LEN_AS_SHORT : + parseFlags.getLength() + Constants.TYPE_AND_LEN_AS_BYTE; + ChannelBuffer data = tempBuf.readBytes(len); + + if (cb.readableBytes() < parseFlags.getLength()) { + Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, BgpErrorType.ATTRIBUTE_LENGTH_ERROR, + parseFlags.getLength()); + } + if (!parseFlags.getFirstBit() && parseFlags.getSecondBit() && parseFlags.getThirdBit()) { + throw new BgpParseException(BgpErrorType.UPDATE_MESSAGE_ERROR, BgpErrorType.ATTRIBUTE_FLAGS_ERROR, data); + } + + BgpLSNlri bgpLSNlri = null; + List<BgpLSNlri> mpReachNlri = new LinkedList<>(); + ChannelBuffer tempCb = cb.readBytes(parseFlags.getLength()); + short afi = 0; + byte safi = 0; + Ip4Address ipNextHop = null; + while (tempCb.readableBytes() > 0) { + afi = tempCb.readShort(); + safi = tempCb.readByte(); + + //Supporting for AFI 16388 / SAFI 71 and VPN AFI 16388 / SAFI 128 + if ((afi == Constants.AFI_VALUE) && (safi == Constants.SAFI_VALUE) || (afi == Constants.AFI_VALUE) + && (safi == Constants.VPN_SAFI_VALUE)) { + byte nextHopLen = tempCb.readByte(); + InetAddress ipAddress = Validation.toInetAddress(nextHopLen, tempCb); + if (ipAddress.isMulticastAddress()) { + throw new BgpParseException("Multicast not supported"); + } + ipNextHop = Ip4Address.valueOf(ipAddress); + byte reserved = tempCb.readByte(); + + while (tempCb.readableBytes() > 0) { + short nlriType = tempCb.readShort(); + short totNlriLen = tempCb.readShort(); + if (tempCb.readableBytes() < totNlriLen) { + Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, + BgpErrorType.ATTRIBUTE_LENGTH_ERROR, totNlriLen); + } + tempBuf = tempCb.readBytes(totNlriLen); + switch (nlriType) { + case BgpNodeLSNlriVer4.NODE_NLRITYPE: + bgpLSNlri = BgpNodeLSNlriVer4.read(tempBuf, afi, safi); + break; + case BgpLinkLsNlriVer4.LINK_NLRITYPE: + bgpLSNlri = BgpLinkLsNlriVer4.read(tempBuf, afi, safi); + break; + case BgpPrefixIPv4LSNlriVer4.PREFIX_IPV4_NLRITYPE: + bgpLSNlri = BgpPrefixIPv4LSNlriVer4.read(tempBuf, afi, safi); + break; + default: + log.debug("nlriType not supported" + nlriType); + } + mpReachNlri.add(bgpLSNlri); + } + } else { + throw new BgpParseException("Not Supporting afi " + afi + "safi " + safi); + } + } + return new MpReachNlri(mpReachNlri, afi, safi, ipNextHop, parseFlags.getLength()); + } + + @Override + public short getType() { + return MPREACHNLRI_TYPE; + } + + /** + * Returns AFI. + * + * @return AFI + */ + public short afi() { + return this.afi; + } + + /** + * Returns Nexthop IpAddress. + * + * @return Nexthop IpAddress + */ + public Ip4Address nexthop4() { + return this.ipNextHop; + } + + /** + * Returns SAFI. + * + * @return SAFI + */ + public byte safi() { + return this.safi; + } + + @Override + public int write(ChannelBuffer cb) { + //Not to be Implemented as of now + return 0; + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()) + .add("mpReachNlri", mpReachNlri) + .add("afi", afi) + .add("safi", safi) + .add("ipNextHop", ipNextHop) + .add("length", length) + .toString(); + } + + @Override + public int compareTo(Object o) { + // TODO Auto-generated method stub + return 0; + } +}
\ No newline at end of file diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/MpUnReachNlri.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/MpUnReachNlri.java new file mode 100644 index 00000000..f354b3ea --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/MpUnReachNlri.java @@ -0,0 +1,210 @@ +/* + * 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.bgpio.types; + +import java.util.LinkedList; +import java.util.List; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.protocol.BgpLSNlri; +import org.onosproject.bgpio.protocol.linkstate.BgpNodeLSNlriVer4; +import org.onosproject.bgpio.protocol.linkstate.BgpPrefixIPv4LSNlriVer4; +import org.onosproject.bgpio.protocol.linkstate.BgpLinkLsNlriVer4; +import org.onosproject.bgpio.util.Constants; +import org.onosproject.bgpio.util.Validation; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.common.base.MoreObjects; + +/** + * Provides Implementation of MpUnReach Nlri BGP Path Attribute. + */ +public class MpUnReachNlri implements BgpValueType { + + private static final Logger log = LoggerFactory.getLogger(MpUnReachNlri.class); + public static final byte MPUNREACHNLRI_TYPE = 15; + public static final byte LINK_NLRITYPE = 2; + + private boolean isMpUnReachNlri = false; + private final short afi; + private final byte safi; + private final List<BgpLSNlri> mpUnReachNlri; + private final int length; + + /** + * Constructor to initialize parameters. + * + * @param mpUnReachNlri MpUnReach Nlri attribute + * @param afi address family identifier + * @param safi subsequent address family identifier + * @param length of MpUnReachNlri + */ + public MpUnReachNlri(List<BgpLSNlri> mpUnReachNlri, short afi, byte safi, + int length) { + this.mpUnReachNlri = mpUnReachNlri; + this.isMpUnReachNlri = true; + this.afi = afi; + this.safi = safi; + this.length = length; + } + + /** + * Reads from ChannelBuffer and parses MpUnReachNlri. + * + * @param cb ChannelBuffer + * @return object of MpUnReachNlri + * @throws BgpParseException while parsing MpUnReachNlri + */ + public static MpUnReachNlri read(ChannelBuffer cb) throws BgpParseException { + ChannelBuffer tempBuf = cb.copy(); + Validation parseFlags = Validation.parseAttributeHeader(cb); + int len = parseFlags.isShort() ? parseFlags.getLength() + Constants.TYPE_AND_LEN_AS_SHORT + : parseFlags.getLength() + Constants.TYPE_AND_LEN_AS_BYTE; + ChannelBuffer data = tempBuf.readBytes(len); + + if (!parseFlags.getFirstBit() && parseFlags.getSecondBit() + && parseFlags.getThirdBit()) { + throw new BgpParseException(BgpErrorType.UPDATE_MESSAGE_ERROR, + BgpErrorType.ATTRIBUTE_FLAGS_ERROR, data); + } + + if (cb.readableBytes() < parseFlags.getLength()) { + Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, + BgpErrorType.ATTRIBUTE_LENGTH_ERROR, parseFlags.getLength()); + } + + LinkedList<BgpLSNlri> mpUnReachNlri = new LinkedList<>(); + BgpLSNlri bgpLSNlri = null; + short afi = 0; + byte safi = 0; + ChannelBuffer tempCb = cb.readBytes(parseFlags.getLength()); + while (tempCb.readableBytes() > 0) { + afi = tempCb.readShort(); + safi = tempCb.readByte(); + + //Supporting only for AFI 16388 / SAFI 71 + if ((afi == Constants.AFI_VALUE) && (safi == Constants.SAFI_VALUE) + || (afi == Constants.AFI_VALUE) && (safi == Constants.VPN_SAFI_VALUE)) { + while (tempCb.readableBytes() > 0) { + short nlriType = tempCb.readShort(); + short totNlriLen = tempCb.readShort(); + if (tempCb.readableBytes() < totNlriLen) { + Validation.validateLen( + BgpErrorType.UPDATE_MESSAGE_ERROR, + BgpErrorType.ATTRIBUTE_LENGTH_ERROR, totNlriLen); + } + tempBuf = tempCb.readBytes(totNlriLen); + switch (nlriType) { + case BgpNodeLSNlriVer4.NODE_NLRITYPE: + bgpLSNlri = BgpNodeLSNlriVer4.read(tempBuf, afi, safi); + break; + case BgpLinkLsNlriVer4.LINK_NLRITYPE: + bgpLSNlri = BgpLinkLsNlriVer4.read(tempBuf, afi, safi); + break; + case BgpPrefixIPv4LSNlriVer4.PREFIX_IPV4_NLRITYPE: + bgpLSNlri = BgpPrefixIPv4LSNlriVer4.read(tempBuf, afi, + safi); + break; + default: + log.debug("nlriType not supported" + nlriType); + } + mpUnReachNlri.add(bgpLSNlri); + } + } else { + //TODO: check with the values got from capability + throw new BgpParseException("Not Supporting afi " + afi + + "safi " + safi); + } + } + return new MpUnReachNlri(mpUnReachNlri, afi, safi, + parseFlags.getLength()); + } + + @Override + public short getType() { + return MPUNREACHNLRI_TYPE; + } + + /** + * Returns SAFI. + * + * @return SAFI + */ + public byte safi() { + return this.safi; + } + + /** + * Returns AFI. + * + * @return AFI + */ + public short afi() { + return this.afi; + } + + /** + * Returns list of MpUnReach Nlri. + * + * @return list of MpUnReach Nlri + */ + public List<BgpLSNlri> mpUnReachNlri() { + return this.mpUnReachNlri; + } + + /** + * Returns whether MpReachNlri is present. + * + * @return whether MpReachNlri is present + */ + public boolean isMpUnReachNlriSet() { + return this.isMpUnReachNlri; + } + + /** + * Returns length of MpUnReach. + * + * @return length of MpUnReach + */ + public int mpUnReachNlriLen() { + return this.length; + } + + @Override + public int write(ChannelBuffer cb) { + //Not to be Implemented as of now + return 0; + } + + @Override + public int compareTo(Object o) { + // TODO Auto-generated method stub + return 0; + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()) + .add("mpReachNlri", mpUnReachNlri) + .add("afi", afi) + .add("safi", safi) + .add("length", length) + .toString(); + } +}
\ No newline at end of file diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/MultiProtocolExtnCapabilityTlv.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/MultiProtocolExtnCapabilityTlv.java new file mode 100644 index 00000000..7082483e --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/MultiProtocolExtnCapabilityTlv.java @@ -0,0 +1,166 @@ +/*
+ * 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.bgpio.types;
+
+import java.util.Objects;
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.google.common.base.MoreObjects;
+
+/**
+ * Provides MultiProtocolExtnCapabilityTlv.
+ */
+public class MultiProtocolExtnCapabilityTlv implements BgpValueType {
+
+ /*
+ 0 7 15 23 31
+ +-------+-------+-------+-------+
+ | AFI | Res | SAFI |
+ +-------+-------+-------+-------+
+
+ Multiprotocol Extensions CAPABILITY TLV format
+ REFERENCE : RFC 4760
+ */
+ protected static final Logger log = LoggerFactory
+ .getLogger(MultiProtocolExtnCapabilityTlv.class);
+
+ public static final byte TYPE = 1;
+ public static final byte LENGTH = 4;
+
+ private final short afi;
+ private final byte res;
+ private final byte safi;
+
+ /**
+ * Constructor to initialize variables.
+ * @param afi Address Family Identifiers
+ * @param res reserved field
+ * @param safi Subsequent Address Family Identifier
+ */
+ public MultiProtocolExtnCapabilityTlv(short afi, byte res, byte safi) {
+ this.afi = afi;
+ this.res = res;
+ this.safi = safi;
+ }
+
+ /**
+ * Returns object of MultiProtocolExtnCapabilityTlv.
+ * @param afi Address Family Identifiers
+ * @param res reserved field
+ * @param safi Subsequent Address Family Identifier
+ * @return object of MultiProtocolExtnCapabilityTlv
+ */
+ public static MultiProtocolExtnCapabilityTlv of(short afi, byte res,
+ byte safi) {
+ return new MultiProtocolExtnCapabilityTlv(afi, res, safi);
+ }
+
+ /**
+ * Returns afi Address Family Identifiers value.
+ * @return afi Address Family Identifiers value
+ */
+ public short getAFI() {
+ return afi;
+ }
+
+ /**
+ * Returns res reserved field value.
+ * @return res reserved field value
+ */
+ public byte getRes() {
+ return res;
+ }
+
+ /**
+ * Returns safi Subsequent Address Family Identifier value.
+ * @return safi Subsequent Address Family Identifier value
+ */
+ public byte getSAFI() {
+ return safi;
+ }
+
+ @Override
+ public short getType() {
+ return TYPE;
+ }
+
+ @Override
+ public int hashCode() {
+ return Objects.hash(afi, res, safi);
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if (this == obj) {
+ return true;
+ }
+ if (obj instanceof MultiProtocolExtnCapabilityTlv) {
+ MultiProtocolExtnCapabilityTlv other = (MultiProtocolExtnCapabilityTlv) obj;
+ return Objects.equals(this.afi, other.afi)
+ && Objects.equals(this.res, other.res)
+ && Objects.equals(this.safi, other.safi);
+ }
+ return false;
+ }
+
+ @Override
+ public int write(ChannelBuffer cb) {
+ int iLenStartIndex = cb.writerIndex();
+ cb.writeByte(TYPE);
+ cb.writeByte(LENGTH);
+
+ // write afi
+ cb.writeShort(afi);
+
+ // write res
+ cb.writeByte(res);
+
+ // write safi
+ cb.writeByte(safi);
+
+ return cb.writerIndex() - iLenStartIndex;
+ }
+
+ /**
+ * Reads from channel buffer and returns object of MultiprotocolCapabilityTlv.
+ * @param cb of type channel buffer
+ * @return object of MultiProtocolExtnCapabilityTlv
+ */
+ public static BgpValueType read(ChannelBuffer cb) {
+ short afi = cb.readShort();
+ byte res = cb.readByte();
+ byte safi = cb.readByte();
+ return new MultiProtocolExtnCapabilityTlv(afi, res, safi);
+ }
+
+ @Override
+ public String toString() {
+ return MoreObjects.toStringHelper(getClass())
+ .add("Type", TYPE)
+ .add("Length", LENGTH)
+ .add("AFI", afi)
+ .add("Reserved", res)
+ .add("SAFI", safi).toString();
+ }
+
+ @Override
+ public int compareTo(Object o) {
+ // TODO Auto-generated method stub
+ return 0;
+ }
+}
diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/NextHop.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/NextHop.java new file mode 100644 index 00000000..806efe52 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/NextHop.java @@ -0,0 +1,139 @@ +/* + * 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.bgpio.types; + +import java.net.InetAddress; +import java.util.Objects; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onlab.packet.Ip4Address; +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.util.Constants; +import org.onosproject.bgpio.util.Validation; + +import com.google.common.base.MoreObjects; +import com.google.common.base.Preconditions; + +/** + * Implementation of NextHop BGP Path Attribute. + */ +public class NextHop implements BgpValueType { + public static final byte NEXTHOP_TYPE = 3; + + private boolean isNextHop = false; + private Ip4Address nextHop; + + /** + * Constructor to initialize parameters. + * + * @param nextHop nextHop address + */ + public NextHop(Ip4Address nextHop) { + this.nextHop = Preconditions.checkNotNull(nextHop); + this.isNextHop = true; + } + + /** + * Returns whether next hop is present. + * + * @return whether next hop is present + */ + public boolean isNextHopSet() { + return this.isNextHop; + } + + /** + * Reads from ChannelBuffer and parses NextHop. + * + * @param cb ChannelBuffer + * @return object of NextHop + * @throws BgpParseException while parsing nexthop attribute + */ + public static NextHop read(ChannelBuffer cb) throws BgpParseException { + Ip4Address nextHop; + ChannelBuffer tempCb = cb.copy(); + Validation parseFlags = Validation.parseAttributeHeader(cb); + + if (cb.readableBytes() < parseFlags.getLength()) { + Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, BgpErrorType.ATTRIBUTE_LENGTH_ERROR, + parseFlags.getLength()); + } + int len = parseFlags.isShort() ? parseFlags.getLength() + Constants.TYPE_AND_LEN_AS_SHORT : parseFlags + .getLength() + Constants.TYPE_AND_LEN_AS_BYTE; + ChannelBuffer data = tempCb.readBytes(len); + if (parseFlags.getFirstBit() && !parseFlags.getSecondBit() && parseFlags.getThirdBit()) { + throw new BgpParseException(BgpErrorType.UPDATE_MESSAGE_ERROR, BgpErrorType.ATTRIBUTE_FLAGS_ERROR, data); + } + + InetAddress ipAddress = Validation.toInetAddress(parseFlags.getLength(), cb); + if (ipAddress.isMulticastAddress()) { + throw new BgpParseException("Multicast address is not supported"); + } + + nextHop = Ip4Address.valueOf(ipAddress); + return new NextHop(nextHop); + } + + /** + * Return nexthop address. + * + * @return nexthop address + */ + public Ip4Address nextHop() { + return nextHop; + } + + @Override + public short getType() { + return NEXTHOP_TYPE; + } + + @Override + public int write(ChannelBuffer cb) { + //Not required to be implemented now + return 0; + } + + @Override + public int hashCode() { + return Objects.hash(nextHop); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + if (obj instanceof NextHop) { + NextHop other = (NextHop) obj; + return Objects.equals(nextHop, other.nextHop); + } + return false; + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()) + .add("nextHop", nextHop) + .toString(); + } + + @Override + public int compareTo(Object o) { + // TODO Auto-generated method stub + return 0; + } +}
\ No newline at end of file diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/OSPFNonPseudonode.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/OSPFNonPseudonode.java new file mode 100644 index 00000000..d281a4ef --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/OSPFNonPseudonode.java @@ -0,0 +1,121 @@ +/* + * 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.bgpio.types; + +import java.util.Objects; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.bgpio.protocol.IGPRouterID; + +import com.google.common.base.MoreObjects; + +/** + * Provides implementation of OSPFNonPseudonode Tlv. + */ +public class OSPFNonPseudonode implements IGPRouterID, BgpValueType { + public static final short TYPE = 515; + public static final short LENGTH = 4; + + private final int routerID; + + /** + * Constructor to initialize routerID. + * + * @param routerID routerID + */ + public OSPFNonPseudonode(int routerID) { + this.routerID = routerID; + } + + /** + * Returns object of this class with specified routerID. + * + * @param routerID routerID + * @return object of OSPFNonPseudonode + */ + public static OSPFNonPseudonode of(final int routerID) { + return new OSPFNonPseudonode(routerID); + } + + /** + * Returns RouterID. + * + * @return RouterID + */ + public int getrouterID() { + return this.routerID; + } + + @Override + public int hashCode() { + return Objects.hash(routerID); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + + if (obj instanceof OSPFNonPseudonode) { + OSPFNonPseudonode other = (OSPFNonPseudonode) obj; + return Objects.equals(routerID, other.routerID); + } + return false; + } + + @Override + public int write(ChannelBuffer c) { + int iLenStartIndex = c.writerIndex(); + c.writeShort(TYPE); + c.writeShort(LENGTH); + c.writeInt(routerID); + return c.writerIndex() - iLenStartIndex; + } + + /** + * Reads the channel buffer and returns object of OSPFNonPseudonode. + * + * @param cb ChannelBuffer + * @return object of OSPFNonPseudonode + */ + public static OSPFNonPseudonode read(ChannelBuffer cb) { + return OSPFNonPseudonode.of(cb.readInt()); + } + + @Override + public short getType() { + return TYPE; + } + + @Override + public int compareTo(Object o) { + if (this.equals(o)) { + return 0; + } + return ((Integer) (this.routerID)).compareTo((Integer) (((OSPFNonPseudonode) o).routerID)); + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()) + .add("Type", TYPE) + .add("Length", LENGTH) + .add("RouterID", routerID) + .toString(); + } +}
\ No newline at end of file diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/OSPFPseudonode.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/OSPFPseudonode.java new file mode 100644 index 00000000..0d17651a --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/OSPFPseudonode.java @@ -0,0 +1,132 @@ +/* + * 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.bgpio.types; + +import java.util.Objects; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onlab.packet.Ip4Address; +import org.onosproject.bgpio.protocol.IGPRouterID; + +import com.google.common.base.MoreObjects; + +/** + * Provides implementation of OSPFPseudonode Tlv. + */ +public class OSPFPseudonode implements IGPRouterID, BgpValueType { + public static final short TYPE = 515; + public static final short LENGTH = 8; + + private final int routerID; + private final Ip4Address drInterface; + + /** + * Constructor to initialize parameters. + * + * @param routerID routerID + * @param drInterface IPv4 address of the DR's interface + */ + public OSPFPseudonode(int routerID, Ip4Address drInterface) { + this.routerID = routerID; + this.drInterface = drInterface; + } + + /** + * Returns object of this class with specified values. + * + * @param routerID routerID + * @param drInterface IPv4 address of the DR's interface + * @return object of OSPFPseudonode + */ + public static OSPFPseudonode of(final int routerID, final Ip4Address drInterface) { + return new OSPFPseudonode(routerID, drInterface); + } + + /** + * Returns RouterID. + * + * @return RouterID + */ + public int getrouterID() { + return this.routerID; + } + + @Override + public int hashCode() { + return Objects.hash(routerID, drInterface); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + if (obj instanceof OSPFPseudonode) { + OSPFPseudonode other = (OSPFPseudonode) obj; + return Objects.equals(routerID, other.routerID) && Objects.equals(drInterface, other.drInterface); + } + return false; + } + + @Override + public int write(ChannelBuffer c) { + int iLenStartIndex = c.writerIndex(); + c.writeShort(TYPE); + c.writeShort(LENGTH); + c.writeInt(routerID); + c.writeInt(drInterface.toInt()); + return c.writerIndex() - iLenStartIndex; + } + + /** + * Reads the channel buffer and returns object of OSPFPseudonode. + * + * @param cb ChannelBuffer + * @return object of OSPFPseudonode + */ + public static OSPFPseudonode read(ChannelBuffer cb) { + int routerID = cb.readInt(); + Ip4Address drInterface = Ip4Address.valueOf(cb.readInt()); + return OSPFPseudonode.of(routerID, drInterface); + } + + @Override + public short getType() { + return TYPE; + } + + @Override + public int compareTo(Object o) { + if (this.equals(o)) { + return 0; + } + int result = ((Integer) (this.routerID)).compareTo((Integer) (((OSPFPseudonode) o).routerID)); + if (result != 0) { + return this.drInterface.compareTo(((OSPFPseudonode) o).drInterface); + } + return result; + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()) + .add("Type", TYPE) + .add("Length", LENGTH) + .add("RouterID", routerID) + .add("DRInterface", drInterface) + .toString(); + } +}
\ No newline at end of file diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/OSPFRouteTypeTlv.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/OSPFRouteTypeTlv.java new file mode 100644 index 00000000..be321c95 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/OSPFRouteTypeTlv.java @@ -0,0 +1,168 @@ +/* + * 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.bgpio.types; + +import java.util.Objects; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.bgpio.exceptions.BgpParseException; + +import com.google.common.base.MoreObjects; + +/** + * Provides OSPF Route Type Tlv which contains route type. + */ +public class OSPFRouteTypeTlv implements BgpValueType { + + /* Reference :draft-ietf-idr-ls-distribution-11 + 0 1 2 3 + 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | Type | Length | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | Route Type | + +-+-+-+-+-+-+-+-+ + + Figure : OSPF Route Type TLV Format + */ + + public static final short TYPE = 264; + public static final short LENGTH = 1; + public static final int INTRA_AREA_TYPE = 1; + public static final short INTER_AREA_TYPE = 2; + public static final short EXTERNAL_TYPE_1 = 3; + public static final short EXTERNAL_TYPE_2 = 4; + public static final short NSSA_TYPE_1 = 5; + public static final short NSSA_TYPE_2 = 6; + + private final byte routeType; + + /** + * Enum for Route Type. + */ + public enum RouteType { + Intra_Area(1), Inter_Area(2), External_1(3), External_2(4), NSSA_1(5), NSSA_2(6); + int value; + RouteType(int val) { + value = val; + } + public byte getType() { + return (byte) value; + } + } + + /** + * Constructor to initialize routeType. + * + * @param routeType Route type + */ + public OSPFRouteTypeTlv(byte routeType) { + this.routeType = routeType; + } + + /** + * Returns object of this class with specified routeType. + * + * @param routeType Route type + * @return object of OSPFRouteTypeTlv + */ + public static OSPFRouteTypeTlv of(final byte routeType) { + return new OSPFRouteTypeTlv(routeType); + } + + /** + * Returns RouteType. + * + * @return RouteType + * @throws BgpParseException if routeType is not matched + */ + public RouteType getValue() throws BgpParseException { + switch (routeType) { + case INTRA_AREA_TYPE: + return RouteType.Intra_Area; + case INTER_AREA_TYPE: + return RouteType.Inter_Area; + case EXTERNAL_TYPE_1: + return RouteType.External_1; + case EXTERNAL_TYPE_2: + return RouteType.External_2; + case NSSA_TYPE_1: + return RouteType.NSSA_1; + case NSSA_TYPE_2: + return RouteType.NSSA_2; + default: + throw new BgpParseException(BgpErrorType.UPDATE_MESSAGE_ERROR, (byte) 0, null); + } + } + + @Override + public int hashCode() { + return Objects.hash(routeType); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + if (obj instanceof OSPFRouteTypeTlv) { + OSPFRouteTypeTlv other = (OSPFRouteTypeTlv) obj; + return Objects.equals(routeType, other.routeType); + } + return false; + } + + @Override + public int write(ChannelBuffer c) { + int iLenStartIndex = c.writerIndex(); + c.writeShort(TYPE); + c.writeShort(LENGTH); + c.writeByte(routeType); + return c.writerIndex() - iLenStartIndex; + } + + /** + * Reads from ChannelBuffer and parses OSPFRouteTypeTlv. + * + * @param cb channelBuffer + * @return object of OSPFRouteTypeTlv + */ + public static OSPFRouteTypeTlv read(ChannelBuffer cb) { + return OSPFRouteTypeTlv.of(cb.readByte()); + } + + @Override + public short getType() { + return TYPE; + } + + @Override + public int compareTo(Object o) { + if (this.equals(o)) { + return 0; + } + return ((Byte) (this.routeType)).compareTo((Byte) (((OSPFRouteTypeTlv) o).routeType)); + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()) + .add("Type", TYPE) + .add("Length", LENGTH) + .add("Value", routeType) + .toString(); + } +}
\ No newline at end of file diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/Origin.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/Origin.java new file mode 100644 index 00000000..d642d83c --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/Origin.java @@ -0,0 +1,168 @@ +/* + * 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.bgpio.types; + +import java.util.Objects; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.util.Constants; +import org.onosproject.bgpio.util.Validation; + +import com.google.common.base.MoreObjects; + +/** + * Provides Implementation of mandatory BGP Origin path attribute. + */ +public class Origin implements BgpValueType { + + /** + * Enum to provide ORIGIN types. + */ + public enum ORIGINTYPE { + IGP(0), EGP(1), INCOMPLETE(2); + int value; + /** + * Assign val with the value as the ORIGIN type. + * + * @param val ORIGIN type + */ + ORIGINTYPE(int val) { + value = val; + } + + /** + * Returns value of ORIGIN type. + * + * @return ORIGIN type + */ + public byte getType() { + return (byte) value; + } + } + + public static final byte ORIGIN_TYPE = 1; + public static final byte ORIGIN_VALUE_LEN = 1; + + private boolean isOrigin = false; + private byte origin; + + /** + * Constructor to initialize parameters. + * + * @param origin origin value + */ + public Origin(byte origin) { + this.origin = origin; + this.isOrigin = true; + } + + /** + * Returns true if origin attribute is present otherwise false. + * + * @return whether origin is present or not + */ + public boolean isOriginSet() { + return this.isOrigin; + } + + /** + * Returns type of Origin in Enum values. + * + * @return type of Origin in Enum values + */ + public ORIGINTYPE origin() { + if (this.origin == 0) { + return ORIGINTYPE.IGP; + } else if (this.origin == 1) { + return ORIGINTYPE.EGP; + } else { + return ORIGINTYPE.INCOMPLETE; + } + } + + /** + * Reads from ChannelBuffer and parses Origin. + * + * @param cb ChannelBuffer + * @return object of Origin + * @throws BgpParseException while parsing Origin path attribute + */ + public static Origin read(ChannelBuffer cb) throws BgpParseException { + ChannelBuffer tempCb = cb.copy(); + Validation parseFlags = Validation.parseAttributeHeader(cb); + + int len = parseFlags.isShort() ? parseFlags.getLength() + Constants.TYPE_AND_LEN_AS_SHORT : parseFlags + .getLength() + Constants.TYPE_AND_LEN_AS_BYTE; + ChannelBuffer data = tempCb.readBytes(len); + if ((parseFlags.getLength() > ORIGIN_VALUE_LEN) || (cb.readableBytes() < parseFlags.getLength())) { + Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, BgpErrorType.ATTRIBUTE_LENGTH_ERROR, + parseFlags.getLength()); + } + if (parseFlags.getFirstBit() && !parseFlags.getSecondBit() && parseFlags.getThirdBit()) { + throw new BgpParseException(BgpErrorType.UPDATE_MESSAGE_ERROR, BgpErrorType.ATTRIBUTE_FLAGS_ERROR, data); + } + + byte originValue; + originValue = cb.readByte(); + if ((originValue != ORIGINTYPE.INCOMPLETE.value) && (originValue != ORIGINTYPE.IGP.value) && + (originValue != ORIGINTYPE.EGP.value)) { + throw new BgpParseException(BgpErrorType.UPDATE_MESSAGE_ERROR, BgpErrorType.INVALID_ORIGIN_ATTRIBUTE, data); + } + return new Origin(originValue); + } + + @Override + public short getType() { + return ORIGIN_TYPE; + } + + @Override + public int write(ChannelBuffer cb) { + //Not required to Implement as of now + return 0; + } + + @Override + public int hashCode() { + return Objects.hash(origin); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + if (obj instanceof Origin) { + Origin other = (Origin) obj; + return Objects.equals(origin, other.origin); + } + return false; + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()) + .add("origin", origin) + .toString(); + } + + @Override + public int compareTo(Object o) { + // TODO Auto-generated method stub + return 0; + } +}
\ No newline at end of file diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/RouteDistinguisher.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/RouteDistinguisher.java new file mode 100644 index 00000000..37632ad8 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/RouteDistinguisher.java @@ -0,0 +1,79 @@ +/* + * 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.bgpio.types; + +import org.jboss.netty.buffer.ChannelBuffer; + +import com.google.common.base.MoreObjects; + +/** + * Implementation of RouteDistinguisher. + */ +public class RouteDistinguisher implements Comparable<RouteDistinguisher> { + + private long routeDistinguisher; + + /** + * Resets fields. + */ + public RouteDistinguisher() { + this.routeDistinguisher = 0; + } + + /** + * Constructor to initialize parameters. + * + * @param routeDistinguisher route distinguisher + */ + public RouteDistinguisher(long routeDistinguisher) { + this.routeDistinguisher = routeDistinguisher; + } + + /** + * Reads route distinguisher from channelBuffer. + * + * @param cb channelBuffer + * @return object of RouteDistinguisher + */ + public static RouteDistinguisher read(ChannelBuffer cb) { + return new RouteDistinguisher(cb.readLong()); + } + + /** + * Returns route distinguisher. + * + * @return route distinguisher + */ + public long getRouteDistinguisher() { + return this.routeDistinguisher; + } + + @Override + public int compareTo(RouteDistinguisher rd) { + if (this.equals(rd)) { + return 0; + } + return ((Long) (this.getRouteDistinguisher())).compareTo((Long) (rd.getRouteDistinguisher())); + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()) + .add("routeDistinguisher", routeDistinguisher) + .toString(); + } +}
\ No newline at end of file diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpAttrNodeFlagBitTlv.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpAttrNodeFlagBitTlv.java new file mode 100755 index 00000000..e0fef7c8 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpAttrNodeFlagBitTlv.java @@ -0,0 +1,199 @@ +/* + * 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.bgpio.types.attr; + +import java.util.Objects; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.types.BgpErrorType; +import org.onosproject.bgpio.types.BgpValueType; +import org.onosproject.bgpio.util.Validation; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.common.base.MoreObjects; + +/** + * Implements BGP attribute node flag. + */ +public final class BgpAttrNodeFlagBitTlv implements BgpValueType { + + protected static final Logger log = LoggerFactory + .getLogger(BgpAttrNodeFlagBitTlv.class); + + public static final int ATTRNODE_FLAGBIT = 1024; + + /* Node flag bit TLV */ + private final boolean bOverloadBit; + private final boolean bAttachedBit; + private final boolean bExternalBit; + private final boolean bAbrBit; + + public static final byte FIRST_BIT = (byte) 0x80; + public static final byte SECOND_BIT = 0x40; + public static final byte THIRD_BIT = 0x20; + public static final byte FOURTH_BIT = 0x01; + + /** + * Constructor to initialize parameters. + * + * @param bOverloadBit Overload bit + * @param bAttachedBit Attached bit + * @param bExternalBit External bit + * @param bAbrBit ABR Bit + */ + private BgpAttrNodeFlagBitTlv(boolean bOverloadBit, boolean bAttachedBit, + boolean bExternalBit, boolean bAbrBit) { + this.bOverloadBit = bOverloadBit; + this.bAttachedBit = bAttachedBit; + this.bExternalBit = bExternalBit; + this.bAbrBit = bAbrBit; + } + + /** + * Returns object of this class with specified values. + * + * @param bOverloadBit Overload bit + * @param bAttachedBit Attached bit + * @param bExternalBit External bit + * @param bAbrBit ABR Bit + * @return object of BgpAttrNodeFlagBitTlv + */ + public static BgpAttrNodeFlagBitTlv of(final boolean bOverloadBit, + final boolean bAttachedBit, + final boolean bExternalBit, + final boolean bAbrBit) { + return new BgpAttrNodeFlagBitTlv(bOverloadBit, bAttachedBit, + bExternalBit, bAbrBit); + } + + /** + * Reads the Node Flag Bits. + * + * @param cb ChannelBuffer + * @return attribute node flag bit tlv + * @throws BgpParseException while parsing BgpAttrNodeFlagBitTlv + */ + public static BgpAttrNodeFlagBitTlv read(ChannelBuffer cb) + throws BgpParseException { + boolean bOverloadBit = false; + boolean bAttachedBit = false; + boolean bExternalBit = false; + boolean bAbrBit = false; + + short lsAttrLength = cb.readShort(); + + if ((lsAttrLength != 1) || (cb.readableBytes() < lsAttrLength)) { + Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, + BgpErrorType.ATTRIBUTE_LENGTH_ERROR, + lsAttrLength); + } + + byte nodeFlagBits = cb.readByte(); + + bOverloadBit = ((nodeFlagBits & FIRST_BIT) == FIRST_BIT); + bAttachedBit = ((nodeFlagBits & SECOND_BIT) == SECOND_BIT); + bExternalBit = ((nodeFlagBits & THIRD_BIT) == THIRD_BIT); + bAbrBit = ((nodeFlagBits & FOURTH_BIT) == FOURTH_BIT); + + return BgpAttrNodeFlagBitTlv.of(bOverloadBit, bAttachedBit, + bExternalBit, bAbrBit); + } + + /** + * Returns Overload Bit. + * + * @return Overload Bit + */ + public boolean overLoadBit() { + return bOverloadBit; + } + + /** + * Returns Attached Bit. + * + * @return Attached Bit + */ + public boolean attachedBit() { + return bAttachedBit; + } + + /** + * Returns External Bit. + * + * @return External Bit + */ + public boolean externalBit() { + return bExternalBit; + } + + /** + * Returns ABR Bit. + * + * @return ABR Bit + */ + public boolean abrBit() { + return bAbrBit; + } + + @Override + public short getType() { + return ATTRNODE_FLAGBIT; + } + + @Override + public int write(ChannelBuffer cb) { + // TODO This will be implemented in the next version + return 0; + } + + @Override + public int hashCode() { + return Objects.hash(bOverloadBit, bAttachedBit, bExternalBit, bAbrBit); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + + if (obj instanceof BgpAttrNodeFlagBitTlv) { + BgpAttrNodeFlagBitTlv other = (BgpAttrNodeFlagBitTlv) obj; + return Objects.equals(bOverloadBit, other.bOverloadBit) + && Objects.equals(bAttachedBit, other.bAttachedBit) + && Objects.equals(bExternalBit, other.bExternalBit) + && Objects.equals(bAbrBit, other.bAbrBit); + } + return false; + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()) + .add("bOverloadBit", bOverloadBit) + .add("bAttachedBit", bAttachedBit) + .add("bExternalBit", bExternalBit).add("bAbrBit", bAbrBit) + .toString(); + } + + @Override + public int compareTo(Object o) { + // TODO Auto-generated method stub + return 0; + } +} diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpAttrNodeIsIsAreaId.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpAttrNodeIsIsAreaId.java new file mode 100644 index 00000000..0435a65f --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpAttrNodeIsIsAreaId.java @@ -0,0 +1,136 @@ +/* + * 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.bgpio.types.attr; + +import java.util.Arrays; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.types.BgpErrorType; +import org.onosproject.bgpio.types.BgpValueType; +import org.onosproject.bgpio.util.Validation; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.common.base.MoreObjects; + +/** + * Implements BGP attribute ISIS Area Identifier. + */ +public class BgpAttrNodeIsIsAreaId implements BgpValueType { + + protected static final Logger log = LoggerFactory + .getLogger(BgpAttrNodeIsIsAreaId.class); + + public static final int ATTRNODE_ISISAREAID = 1027; + + /* IS-IS Area Identifier TLV */ + private byte[] isisAreaId; + + /** + * Constructor to initialize value. + * + * @param isisAreaId ISIS area Identifier + */ + public BgpAttrNodeIsIsAreaId(byte[] isisAreaId) { + this.isisAreaId = Arrays.copyOf(isisAreaId, isisAreaId.length); + } + + /** + * Returns object of this class with specified values. + * + * @param isisAreaId ISIS area Identifier + * @return object of BgpAttrNodeIsIsAreaId + */ + public static BgpAttrNodeIsIsAreaId of(final byte[] isisAreaId) { + return new BgpAttrNodeIsIsAreaId(isisAreaId); + } + + /** + * Reads the IS-IS Area Identifier. + * + * @param cb ChannelBuffer + * @return object of BgpAttrNodeIsIsAreaId + * @throws BgpParseException while parsing BgpAttrNodeIsIsAreaId + */ + public static BgpAttrNodeIsIsAreaId read(ChannelBuffer cb) + throws BgpParseException { + byte[] isisAreaId; + + short lsAttrLength = cb.readShort(); + + if (cb.readableBytes() < lsAttrLength) { + Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, + BgpErrorType.ATTRIBUTE_LENGTH_ERROR, + lsAttrLength); + } + + isisAreaId = new byte[lsAttrLength]; + cb.readBytes(isisAreaId); + + return BgpAttrNodeIsIsAreaId.of(isisAreaId); + } + + /** + * Returns ISIS area Identifier. + * + * @return Area ID + */ + public byte[] attrNodeIsIsAreaId() { + return isisAreaId; + } + + @Override + public short getType() { + return ATTRNODE_ISISAREAID; + } + + @Override + public int hashCode() { + return Arrays.hashCode(isisAreaId); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + + if (obj instanceof BgpAttrNodeIsIsAreaId) { + BgpAttrNodeIsIsAreaId other = (BgpAttrNodeIsIsAreaId) obj; + return Arrays.equals(isisAreaId, other.isisAreaId); + } + return false; + } + + @Override + public int write(ChannelBuffer cb) { + // TODO This will be implemented in the next version + return 0; + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()).omitNullValues() + .add("isisAreaId", isisAreaId).toString(); + } + + @Override + public int compareTo(Object o) { + // TODO Auto-generated method stub + return 0; + } +} diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpAttrNodeMultiTopologyId.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpAttrNodeMultiTopologyId.java new file mode 100644 index 00000000..31d855db --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpAttrNodeMultiTopologyId.java @@ -0,0 +1,164 @@ +/* + * 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.bgpio.types.attr; + +import java.util.ArrayList; +import java.util.List; +import java.util.ListIterator; +import java.util.Objects; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.types.BgpErrorType; +import org.onosproject.bgpio.types.BgpValueType; +import org.onosproject.bgpio.util.Validation; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.common.base.MoreObjects; + +/** + * BGP Multi-Topology ID of the LS attribute. + */ +public class BgpAttrNodeMultiTopologyId implements BgpValueType { + + private static final Logger log = LoggerFactory + .getLogger(BgpAttrNodeMultiTopologyId.class); + + public static final int ATTRNODE_MULTITOPOLOGY = 263; + + /* Opaque Node Attribute */ + private List<Short> multiTopologyId = new ArrayList<Short>(); + + /** + * Constructor to initialize the Node attribute multi-topology ID. + * + * @param multiTopologyId multi-topology ID + */ + public BgpAttrNodeMultiTopologyId(List<Short> multiTopologyId) { + this.multiTopologyId = multiTopologyId; + } + + /** + * Returns object of this class with specified values. + * + * @param multiTopologyId Prefix Metric + * @return object of BgpAttrNodeMultiTopologyId + */ + public static BgpAttrNodeMultiTopologyId of(ArrayList<Short> multiTopologyId) { + return new BgpAttrNodeMultiTopologyId(multiTopologyId); + } + + /** + * Reads the Multi-topology ID of Node attribute. + * + * @param cb ChannelBuffer + * @return Constructor of BgpAttrNodeMultiTopologyId + * @throws BgpParseException while parsing BgpAttrNodeMultiTopologyId + */ + public static BgpAttrNodeMultiTopologyId read(ChannelBuffer cb) + throws BgpParseException { + ArrayList<Short> multiTopologyId = new ArrayList<Short>(); + short tempMultiTopologyId; + short lsAttrLength = cb.readShort(); + int len = lsAttrLength / 2; // Length is 2*n and n is the number of MT-IDs + + if (cb.readableBytes() < lsAttrLength) { + Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, + BgpErrorType.ATTRIBUTE_LENGTH_ERROR, + lsAttrLength); + } + + for (int i = 0; i < len; i++) { + tempMultiTopologyId = cb.readShort(); + multiTopologyId.add(new Short(tempMultiTopologyId)); + } + + return new BgpAttrNodeMultiTopologyId(multiTopologyId); + } + + /** + * to get the multi-topology ID. + * + * @return multitopology ID + */ + public List<Short> attrMultiTopologyId() { + return multiTopologyId; + } + + @Override + public short getType() { + return ATTRNODE_MULTITOPOLOGY; + } + + @Override + public int hashCode() { + return Objects.hash(multiTopologyId); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + + if (obj instanceof BgpAttrNodeMultiTopologyId) { + BgpAttrNodeMultiTopologyId other = (BgpAttrNodeMultiTopologyId) obj; + return Objects.equals(multiTopologyId, other.multiTopologyId); + } + return false; + } + + @Override + public int write(ChannelBuffer cb) { + // TODO This will be implemented in the next version + return 0; + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()) + .omitNullValues() + .add("multiTopologyId", multiTopologyId) + .toString(); + } + + @Override + public int compareTo(Object o) { + if (this.equals(o)) { + return 0; + } + int countOtherSubTlv = ((BgpAttrNodeMultiTopologyId) o).multiTopologyId.size(); + int countObjSubTlv = multiTopologyId.size(); + if (countOtherSubTlv != countObjSubTlv) { + if (countOtherSubTlv > countObjSubTlv) { + return 1; + } else { + return -1; + } + } + ListIterator<Short> listIterator = multiTopologyId.listIterator(); + ListIterator<Short> listIteratorOther = ((BgpAttrNodeMultiTopologyId) o).multiTopologyId.listIterator(); + while (listIterator.hasNext()) { + short id = listIterator.next(); + short id1 = listIteratorOther.next(); + if (((Short) id).compareTo((Short) id1) != 0) { + return ((Short) id).compareTo((Short) id1); + } + } + return 0; + } +}
\ No newline at end of file diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpAttrNodeName.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpAttrNodeName.java new file mode 100644 index 00000000..2e1c7a05 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpAttrNodeName.java @@ -0,0 +1,135 @@ +/* + * 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.bgpio.types.attr; + +import java.util.Arrays; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.types.BgpErrorType; +import org.onosproject.bgpio.types.BgpValueType; +import org.onosproject.bgpio.util.Validation; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.common.base.MoreObjects; + +/** + * Implements BGP attribute node name. + */ +public class BgpAttrNodeName implements BgpValueType { + + protected static final Logger log = LoggerFactory + .getLogger(BgpAttrNodeName.class); + + public static final int ATTRNODE_NAME = 1026; + + /* Node Name */ + private byte[] nodeName; + + /** + * Constructor to initialize value. + * + * @param nodeName node name + */ + public BgpAttrNodeName(byte[] nodeName) { + this.nodeName = Arrays.copyOf(nodeName, nodeName.length); + } + + /** + * Returns object of this class with specified values. + * + * @param nodeName node name + * @return object of BgpAttrNodeName + */ + public static BgpAttrNodeName of(final byte[] nodeName) { + return new BgpAttrNodeName(nodeName); + } + + /** + * Reads the LS attribute node name. + * + * @param cb ChannelBuffer + * @return object of BgpAttrNodeName + * @throws BgpParseException while parsing BgpAttrNodeName + */ + public static BgpAttrNodeName read(ChannelBuffer cb) + throws BgpParseException { + byte[] nodeName; + + short lsAttrLength = cb.readShort(); + + if (cb.readableBytes() < lsAttrLength) { + Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, + BgpErrorType.ATTRIBUTE_LENGTH_ERROR, + lsAttrLength); + } + + nodeName = new byte[lsAttrLength]; + cb.readBytes(nodeName); + return BgpAttrNodeName.of(nodeName); + } + + /** + * Returns LS attribute node name. + * + * @return node name + */ + public byte[] attrNodeName() { + return nodeName; + } + + @Override + public short getType() { + return ATTRNODE_NAME; + } + + @Override + public int hashCode() { + return Arrays.hashCode(nodeName); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + + if (obj instanceof BgpAttrNodeName) { + BgpAttrNodeName other = (BgpAttrNodeName) obj; + return Arrays.equals(nodeName, other.nodeName); + } + return false; + } + + @Override + public int write(ChannelBuffer cb) { + // TODO This will be implemented in the next version + return 0; + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()).omitNullValues() + .add("nodeName", nodeName).toString(); + } + + @Override + public int compareTo(Object o) { + // TODO Auto-generated method stub + return 0; + } +} diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpAttrOpaqueNode.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpAttrOpaqueNode.java new file mode 100644 index 00000000..545755a7 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpAttrOpaqueNode.java @@ -0,0 +1,138 @@ +/* + * 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.bgpio.types.attr; + +import java.util.Arrays; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.types.BgpErrorType; +import org.onosproject.bgpio.types.BgpValueType; +import org.onosproject.bgpio.util.Validation; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.common.base.MoreObjects; + +/** + * Implements BGP attribute opaque node. + */ +public class BgpAttrOpaqueNode implements BgpValueType { + + protected static final Logger log = LoggerFactory + .getLogger(BgpAttrOpaqueNode.class); + + public static final int ATTRNODE_OPAQUEDATA = 1025; + + /* Opaque Node Attribute */ + private byte[] opaqueNodeAttribute; + + /** + * Constructor to initialize parameter. + * + * @param opaqueNodeAttribute opaque node attribute + */ + public BgpAttrOpaqueNode(byte[] opaqueNodeAttribute) { + this.opaqueNodeAttribute = Arrays.copyOf(opaqueNodeAttribute, opaqueNodeAttribute.length); + } + + /** + * Returns object of this class with specified values. + * + * @param opaqueNodeAttribute Prefix Metric + * @return object of BgpAttrOpaqueNode + */ + public static BgpAttrOpaqueNode of(byte[] opaqueNodeAttribute) { + return new BgpAttrOpaqueNode(opaqueNodeAttribute); + } + + /** + * Reads the Opaque Node Properties. + * + * @param cb ChannelBuffer + * @return object of BgpAttrOpaqueNode + * @throws BgpParseException while parsing BgpAttrOpaqueNode + */ + public static BgpAttrOpaqueNode read(ChannelBuffer cb) + throws BgpParseException { + + byte[] opaqueNodeAttribute; + + short lsAttrLength = cb.readShort(); + + if (cb.readableBytes() < lsAttrLength) { + Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, + BgpErrorType.ATTRIBUTE_LENGTH_ERROR, + lsAttrLength); + } + + opaqueNodeAttribute = new byte[lsAttrLength]; + cb.readBytes(opaqueNodeAttribute); + + return BgpAttrOpaqueNode.of(opaqueNodeAttribute); + } + + /** + * Returns opaque node attribute. + * + * @return LS node attribute value + */ + public byte[] attrOpaqueNode() { + return opaqueNodeAttribute; + } + + @Override + public short getType() { + return ATTRNODE_OPAQUEDATA; + } + + @Override + public int hashCode() { + return Arrays.hashCode(opaqueNodeAttribute); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + + if (obj instanceof BgpAttrOpaqueNode) { + BgpAttrOpaqueNode other = (BgpAttrOpaqueNode) obj; + return Arrays + .equals(opaqueNodeAttribute, other.opaqueNodeAttribute); + } + return false; + } + + @Override + public int write(ChannelBuffer cb) { + // TODO This will be implemented in the next version + return 0; + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()).omitNullValues() + .add("opaqueNodeAttribute", opaqueNodeAttribute).toString(); + } + + @Override + public int compareTo(Object o) { + // TODO Auto-generated method stub + return 0; + } +} diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpAttrRouterIdV4.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpAttrRouterIdV4.java new file mode 100644 index 00000000..f3c0d17b --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpAttrRouterIdV4.java @@ -0,0 +1,140 @@ +/* + * 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.bgpio.types.attr; + +import java.util.Objects; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onlab.packet.Ip4Address; +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.types.BgpErrorType; +import org.onosproject.bgpio.types.BgpValueType; +import org.onosproject.bgpio.util.Validation; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.common.base.MoreObjects; + +/** + * Implements BGP attribute node router ID. + */ +public final class BgpAttrRouterIdV4 implements BgpValueType { + + protected static final Logger log = LoggerFactory + .getLogger(BgpAttrRouterIdV4.class); + + private final short sType; + + /* IPv4 Router-ID of Node */ + private final Ip4Address ip4RouterId; + + /** + * Constructor to initialize the value. + * + * @param ip4RouterId IPV4 address of router + * @param sType TLV type + */ + private BgpAttrRouterIdV4(Ip4Address ip4RouterId, short sType) { + this.ip4RouterId = ip4RouterId; + this.sType = sType; + } + + /** + * Returns object of this class with specified values. + * + * @param ip4RouterId IPv4 address + * @param sType Type of this TLV + * @return object of BgpAttrRouterIdV4 + */ + public static BgpAttrRouterIdV4 of(final Ip4Address ip4RouterId, + final short sType) { + return new BgpAttrRouterIdV4(ip4RouterId, sType); + } + + /** + * Reads the IPv4 Router-ID. + * + * @param cb ChannelBuffer + * @param sType tag type + * @return object of BgpAttrRouterIdV4 + * @throws BgpParseException while parsing BgpAttrRouterIdV4 + */ + public static BgpAttrRouterIdV4 read(ChannelBuffer cb, short sType) + throws BgpParseException { + short lsAttrLength = cb.readShort(); + + if ((lsAttrLength != 4) || (cb.readableBytes() < lsAttrLength)) { + Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, + BgpErrorType.ATTRIBUTE_LENGTH_ERROR, + lsAttrLength); + } + + byte[] ipBytes = new byte[lsAttrLength]; + cb.readBytes(ipBytes, 0, lsAttrLength); + Ip4Address ip4RouterId = Ip4Address.valueOf(ipBytes); + return BgpAttrRouterIdV4.of(ip4RouterId, sType); + } + + /** + * Returns the IPV4 router ID. + * + * @return Router ID + */ + public Ip4Address attrRouterId() { + return ip4RouterId; + } + + @Override + public short getType() { + return sType; + } + + @Override + public int hashCode() { + return Objects.hash(ip4RouterId); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + + if (obj instanceof BgpAttrRouterIdV4) { + BgpAttrRouterIdV4 other = (BgpAttrRouterIdV4) obj; + return Objects.equals(ip4RouterId, other.ip4RouterId); + } + return false; + } + + @Override + public int write(ChannelBuffer cb) { + // TODO This will be implemented in the next version + return 0; + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()).omitNullValues() + .add("ip4RouterId", ip4RouterId).toString(); + } + + @Override + public int compareTo(Object o) { + // TODO Auto-generated method stub + return 0; + } +} diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpAttrRouterIdV6.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpAttrRouterIdV6.java new file mode 100644 index 00000000..648fd56e --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpAttrRouterIdV6.java @@ -0,0 +1,143 @@ +/* + * 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.bgpio.types.attr; + +import java.util.Objects; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onlab.packet.Ip6Address; +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.types.BgpErrorType; +import org.onosproject.bgpio.types.BgpValueType; +import org.onosproject.bgpio.util.Validation; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.common.base.MoreObjects; + +/** + * Implements BGP attribute IPv6 router ID. + */ +public final class BgpAttrRouterIdV6 implements BgpValueType { + + protected static final Logger log = LoggerFactory + .getLogger(BgpAttrRouterIdV6.class); + + private final short sType; + + /* IPv4 Router-ID of Node */ + private final Ip6Address ip6RouterId; + + /** + * Constructor to initialize the value. + * + * @param ip6RouterId IPV6 address of the router ID + * @param sType TLV type + */ + private BgpAttrRouterIdV6(Ip6Address ip6RouterId, short sType) { + this.ip6RouterId = ip6RouterId; + this.sType = sType; + } + + /** + * Returns object of this class with specified values. + * + * @param ip6RouterId IPV6 address of the router ID + * @param sType TLV type + * @return object of BgpAttrRouterIdV6 + */ + public static BgpAttrRouterIdV6 of(final Ip6Address ip6RouterId, + final short sType) { + return new BgpAttrRouterIdV6(ip6RouterId, sType); + } + + /** + * Reads the IPv6 Router-ID. + * + * @param cb ChannelBuffer + * @param sType TLV type + * @return object of BgpAttrRouterIdV6 + * @throws BgpParseException while parsing BgpAttrRouterIdV6 + */ + public static BgpAttrRouterIdV6 read(ChannelBuffer cb, short sType) + throws BgpParseException { + byte[] ipBytes; + Ip6Address ip6RouterId; + + short lsAttrLength = cb.readShort(); + + if ((lsAttrLength != 16) || (cb.readableBytes() < lsAttrLength)) { + Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, + BgpErrorType.ATTRIBUTE_LENGTH_ERROR, + lsAttrLength); + } + + ipBytes = new byte[lsAttrLength]; + cb.readBytes(ipBytes); + ip6RouterId = Ip6Address.valueOf(ipBytes); + return BgpAttrRouterIdV6.of(ip6RouterId, sType); + } + + /** + * Returns IPV6 router ID. + * + * @return Router ID + */ + public Ip6Address attrRouterId() { + return ip6RouterId; + } + + @Override + public short getType() { + return sType; + } + + @Override + public int hashCode() { + return Objects.hash(ip6RouterId); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + + if (obj instanceof BgpAttrRouterIdV6) { + BgpAttrRouterIdV6 other = (BgpAttrRouterIdV6) obj; + return Objects.equals(ip6RouterId, other.ip6RouterId); + } + return false; + } + + @Override + public int write(ChannelBuffer cb) { + // TODO This will be implemented in the next version + return 0; + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()).omitNullValues() + .add("ip6RouterId", ip6RouterId).toString(); + } + + @Override + public int compareTo(Object o) { + // TODO Auto-generated method stub + return 0; + } +} diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpLinkAttrIgpMetric.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpLinkAttrIgpMetric.java new file mode 100644 index 00000000..5721cf6c --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpLinkAttrIgpMetric.java @@ -0,0 +1,178 @@ +/* + * 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.bgpio.types.attr; + +import java.util.Objects; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.types.BgpErrorType; +import org.onosproject.bgpio.types.BgpValueType; +import org.onosproject.bgpio.util.Validation; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.common.base.MoreObjects; + +/** + * Implements BGP link IGP metric attribute. + */ +public class BgpLinkAttrIgpMetric implements BgpValueType { + + protected static final Logger log = LoggerFactory + .getLogger(BgpLinkAttrIgpMetric.class); + + public static final int ATTRLINK_IGPMETRIC = 1095; + public static final int ATTRLINK_MAX_LEN = 3; + + /* Variable metric length based on protocol */ + public static final int ISIS_SMALL_METRIC = 1; + public static final int OSPF_LINK_METRIC = 2; + public static final int ISIS_WIDE_METRIC = 3; + + /* IGP Metric */ + private final int igpMetric; + private final int igpMetricLen; + + /** + * Constructor to initialize the value. + * + * @param igpMetric 3 byte IGP metric data. + * @param igpMetricLen length of IGP metric data. + */ + public BgpLinkAttrIgpMetric(final int igpMetric, final int igpMetricLen) { + this.igpMetric = igpMetric; + this.igpMetricLen = igpMetricLen; + } + + /** + * Returns object of this class with specified values. + * + * @param igpMetric 3 byte IGP metric data. + * @param igpMetricLen length of IGP metric data. + * @return object of BgpLinkAttrIgpMetric + */ + public static BgpLinkAttrIgpMetric of(final int igpMetric, + final int igpMetricLen) { + return new BgpLinkAttrIgpMetric(igpMetric, igpMetricLen); + } + + /** + * Reads the BGP link attributes IGP Metric. + * + * @param cb Channel buffer + * @return object of type BgpLinkAttrIgpMetric + * @throws BgpParseException while parsing BgpLinkAttrIgpMetric + */ + public static BgpLinkAttrIgpMetric read(ChannelBuffer cb) + throws BgpParseException { + + short linkigp; + int igpMetric = 0; + int igpMetricLen = 0; + + short lsAttrLength = cb.readShort(); + + if (cb.readableBytes() < lsAttrLength + || lsAttrLength > ATTRLINK_MAX_LEN) { + Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, + BgpErrorType.ATTRIBUTE_LENGTH_ERROR, + lsAttrLength); + } + + switch (lsAttrLength) { + case ISIS_SMALL_METRIC: + igpMetric = cb.readByte(); + igpMetricLen = ISIS_SMALL_METRIC; + break; + case OSPF_LINK_METRIC: + igpMetric = cb.readShort(); + igpMetricLen = OSPF_LINK_METRIC; + break; + case ISIS_WIDE_METRIC: + linkigp = cb.readShort(); + igpMetric = cb.readByte(); + igpMetric = (igpMetric << 16) | linkigp; + igpMetricLen = ISIS_WIDE_METRIC; + break; + default: // validation is already in place + break; + } + + return BgpLinkAttrIgpMetric.of(igpMetric, igpMetricLen); + } + + /** + * Returns the variable length IGP metric data. + * + * @return IGP metric data + */ + public int attrLinkIgpMetric() { + return igpMetric; + } + + /** + * Returns IGP metric data length. + * + * @return IGP metric length + */ + public int attrLinkIgpMetricLength() { + return igpMetricLen; + } + + @Override + public short getType() { + return ATTRLINK_IGPMETRIC; + } + + @Override + public int hashCode() { + return Objects.hash(igpMetric, igpMetricLen); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + + if (obj instanceof BgpLinkAttrIgpMetric) { + BgpLinkAttrIgpMetric other = (BgpLinkAttrIgpMetric) obj; + return Objects.equals(igpMetric, other.igpMetric) + && Objects.equals(igpMetricLen, other.igpMetricLen); + } + return false; + } + + @Override + public int write(ChannelBuffer cb) { + // TODO This will be implemented in the next version + return 0; + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()) + .add("igpMetric", igpMetric).add("igpMetricLen", igpMetricLen) + .toString(); + } + + @Override + public int compareTo(Object o) { + // TODO Auto-generated method stub + return 0; + } +} diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpLinkAttrIsIsAdminstGrp.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpLinkAttrIsIsAdminstGrp.java new file mode 100644 index 00000000..448f1e58 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpLinkAttrIsIsAdminstGrp.java @@ -0,0 +1,136 @@ +/* + * 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.bgpio.types.attr; + +import java.util.Objects; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.types.BgpErrorType; +import org.onosproject.bgpio.types.BgpValueType; +import org.onosproject.bgpio.util.Validation; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.common.base.MoreObjects; + +/** + * Implements BGP attribute Is Is Administrative area. + */ +public final class BgpLinkAttrIsIsAdminstGrp implements BgpValueType { + + protected static final Logger log = LoggerFactory + .getLogger(BgpLinkAttrIsIsAdminstGrp.class); + + public static final int ATTRLINK_PROTECTIONTYPE = 1088; + public static final int ISIS_ADMIN_DATA_LEN = 4; + + /* ISIS administrative group */ + private final long isisAdminGrp; + + /** + * Constructor to initialize the values. + * + * @param isisAdminGrp ISIS protocol admin group + */ + public BgpLinkAttrIsIsAdminstGrp(long isisAdminGrp) { + this.isisAdminGrp = isisAdminGrp; + } + + /** + * Returns object of this class with specified values. + * + * @param isisAdminGrp ISIS admin group + * @return object of BgpLinkAttrIsIsAdminstGrp + */ + public static BgpLinkAttrIsIsAdminstGrp of(final long isisAdminGrp) { + return new BgpLinkAttrIsIsAdminstGrp(isisAdminGrp); + } + + /** + * Reads the BGP link attributes of ISIS administrative group area. + * + * @param cb Channel buffer + * @return object of type BgpLinkAttrIsIsAdminstGrp + * @throws BgpParseException while parsing BgpLinkAttrIsIsAdminstGrp + */ + public static BgpLinkAttrIsIsAdminstGrp read(ChannelBuffer cb) + throws BgpParseException { + long isisAdminGrp; + short lsAttrLength = cb.readShort(); + + if ((lsAttrLength != ISIS_ADMIN_DATA_LEN) + || (cb.readableBytes() < lsAttrLength)) { + Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, + BgpErrorType.ATTRIBUTE_LENGTH_ERROR, + lsAttrLength); + } + + isisAdminGrp = cb.readUnsignedInt(); + + return BgpLinkAttrIsIsAdminstGrp.of(isisAdminGrp); + } + + /** + * Link attributes of ISIS administrative group area. + * + * @return long value of the administrative group area + */ + public long linkAttrIsIsAdminGrp() { + return isisAdminGrp; + } + + @Override + public short getType() { + return ATTRLINK_PROTECTIONTYPE; + } + + @Override + public int hashCode() { + return Objects.hash(isisAdminGrp); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + + if (obj instanceof BgpLinkAttrIsIsAdminstGrp) { + BgpLinkAttrIsIsAdminstGrp other = (BgpLinkAttrIsIsAdminstGrp) obj; + return Objects.equals(isisAdminGrp, other.isisAdminGrp); + } + return false; + } + + @Override + public int write(ChannelBuffer cb) { + // TODO This will be implemented in the next version + return 0; + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()) + .add("isisAdminGrp", isisAdminGrp).toString(); + } + + @Override + public int compareTo(Object o) { + // TODO Auto-generated method stub + return 0; + } +} diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpLinkAttrMaxLinkBandwidth.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpLinkAttrMaxLinkBandwidth.java new file mode 100644 index 00000000..2711ca94 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpLinkAttrMaxLinkBandwidth.java @@ -0,0 +1,156 @@ +/* + * 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.bgpio.types.attr; + +import java.util.Objects; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.types.BgpErrorType; +import org.onosproject.bgpio.types.BgpValueType; +import org.onosproject.bgpio.util.Validation; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.common.base.MoreObjects; + +/** + * Implements BGP attribute Max Link bandwidth. + */ +public final class BgpLinkAttrMaxLinkBandwidth implements BgpValueType { + + protected static final Logger log = LoggerFactory + .getLogger(BgpLinkAttrMaxLinkBandwidth.class); + + public static final int MAX_BANDWIDTH_LEN = 4; + public static final int NO_OF_BITS = 8; + + public short type; + + /* ISIS administrative group */ + private final float maxBandwidth; + + /** + * Constructor to initialize the values. + * + * @param maxBandwidth Maximum link bandwidth. + * @param type TLV type + */ + private BgpLinkAttrMaxLinkBandwidth(float maxBandwidth, short type) { + this.maxBandwidth = maxBandwidth; + this.type = type; + } + + /** + * Returns object of this class with specified values. + * + * @param maxBandwidth Maximum link bandwidth. + * @param type TLV type + * @return object of BgpLinkAttrMaxLinkBandwidth + */ + public static BgpLinkAttrMaxLinkBandwidth of(final float maxBandwidth, + final short type) { + return new BgpLinkAttrMaxLinkBandwidth(maxBandwidth, type); + } + + /** + * Reads the BGP link attributes of Maximum link bandwidth. + * + * @param cb Channel buffer + * @param type type of this tlv + * @return object of type BgpLinkAttrMaxLinkBandwidth + * @throws BgpParseException while parsing BgpLinkAttrMaxLinkBandwidth + */ + public static BgpLinkAttrMaxLinkBandwidth read(ChannelBuffer cb, short type) + throws BgpParseException { + float maxBandwidth; + short lsAttrLength = cb.readShort(); + + if ((lsAttrLength != MAX_BANDWIDTH_LEN) + || (cb.readableBytes() < lsAttrLength)) { + Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, + BgpErrorType.ATTRIBUTE_LENGTH_ERROR, + lsAttrLength); + } + + maxBandwidth = ieeeToFloatRead(cb.readInt()) * NO_OF_BITS; + + return BgpLinkAttrMaxLinkBandwidth.of(maxBandwidth, type); + } + + /** + * Returns Maximum link bandwidth. + * + * @return Maximum link bandwidth + */ + float linkAttrMaxLinkBandwidth() { + return maxBandwidth; + } + + /** + * Parse the IEEE floating point notation and returns it in normal float. + * + * @param iVal IEEE floating point number + * @return normal float + */ + static float ieeeToFloatRead(int iVal) { + iVal = (((iVal & 0xFF) << 24) | ((iVal & 0xFF00) << 8) + | ((iVal & 0xFF0000) >> 8) | ((iVal >> 24) & 0xFF)); + + return Float.intBitsToFloat(iVal); + } + + @Override + public short getType() { + return this.type; + } + + @Override + public int hashCode() { + return Objects.hash(maxBandwidth); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + + if (obj instanceof BgpLinkAttrMaxLinkBandwidth) { + BgpLinkAttrMaxLinkBandwidth other = (BgpLinkAttrMaxLinkBandwidth) obj; + return Objects.equals(maxBandwidth, other.maxBandwidth); + } + return false; + } + + @Override + public int write(ChannelBuffer cb) { + // TODO This will be implemented in the next version + return 0; + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()) + .add("maxBandwidth", maxBandwidth).toString(); + } + + @Override + public int compareTo(Object o) { + // TODO Auto-generated method stub + return 0; + } +} diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpLinkAttrMplsProtocolMask.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpLinkAttrMplsProtocolMask.java new file mode 100644 index 00000000..2bf1a59d --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpLinkAttrMplsProtocolMask.java @@ -0,0 +1,158 @@ +/* + * 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.bgpio.types.attr; + +import java.util.Objects; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.types.BgpErrorType; +import org.onosproject.bgpio.types.BgpValueType; +import org.onosproject.bgpio.util.Validation; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.common.base.MoreObjects; + +/** + * Implements BGP MPLS protocol mask attribute. + */ +public class BgpLinkAttrMplsProtocolMask implements BgpValueType { + + protected static final Logger log = LoggerFactory + .getLogger(BgpLinkAttrMplsProtocolMask.class); + + public static final int ATTRLINK_MPLSPROTOMASK = 1094; + public static final int MASK_BYTE_LEN = 1; + + private final boolean bLdp; + private final boolean bRsvpTe; + + public static final byte FIRST_BIT = (byte) 0x80; + public static final byte SECOND_BIT = 0x40; + + /** + * Constructor to initialize the values. + * + * @param bLdp boolean value true if LDP flag is available + * @param bRsvpTe boolean value true if RSVP TE information is available + */ + public BgpLinkAttrMplsProtocolMask(boolean bLdp, boolean bRsvpTe) { + this.bLdp = bLdp; + this.bRsvpTe = bRsvpTe; + } + + /** + * Returns object of this class with specified values. + * + * @param bLdp boolean value true if LDP flag is available + * @param bRsvpTe boolean value true if RSVP TE information is available + * @return object of BgpLinkAttrMplsProtocolMask + */ + public static BgpLinkAttrMplsProtocolMask of(final boolean bLdp, + final boolean bRsvpTe) { + return new BgpLinkAttrMplsProtocolMask(bLdp, bRsvpTe); + } + + /** + * Reads the BGP link attributes MPLS protocol mask. + * + * @param cb Channel buffer + * @return object of type BgpLinkAttrMPLSProtocolMask + * @throws BgpParseException while parsing BgpLinkAttrMplsProtocolMask + */ + public static BgpLinkAttrMplsProtocolMask read(ChannelBuffer cb) + throws BgpParseException { + boolean bLdp = false; + boolean bRsvpTe = false; + + short lsAttrLength = cb.readShort(); + + if ((lsAttrLength != MASK_BYTE_LEN) + || (cb.readableBytes() < lsAttrLength)) { + Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, + BgpErrorType.ATTRIBUTE_LENGTH_ERROR, + lsAttrLength); + } + + byte flags = cb.readByte(); + + bLdp = ((flags & (byte) FIRST_BIT) == FIRST_BIT); + bRsvpTe = ((flags & (byte) SECOND_BIT) == SECOND_BIT); + + return BgpLinkAttrMplsProtocolMask.of(bLdp, bRsvpTe); + } + + /** + * Returns true if LDP bit is set. + * + * @return True if LDP information is set else false. + */ + public boolean ldpBit() { + return bLdp; + } + + /** + * Returns RSVP TE information. + * + * @return True if RSVP TE information is set else false. + */ + public boolean rsvpBit() { + return bRsvpTe; + } + + @Override + public short getType() { + return ATTRLINK_MPLSPROTOMASK; + } + + @Override + public int hashCode() { + return Objects.hash(bLdp, bRsvpTe); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + + if (obj instanceof BgpLinkAttrMplsProtocolMask) { + BgpLinkAttrMplsProtocolMask other = (BgpLinkAttrMplsProtocolMask) obj; + return Objects.equals(bLdp, other.bLdp) + && Objects.equals(bRsvpTe, other.bRsvpTe); + } + return false; + } + + @Override + public int write(ChannelBuffer cb) { + // TODO This will be implemented in the next version + return 0; + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()) + .add("bLdp", bLdp).add("bRsvpTe", bRsvpTe).toString(); + } + + @Override + public int compareTo(Object o) { + // TODO Auto-generated method stub + return 0; + } +} diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpLinkAttrName.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpLinkAttrName.java new file mode 100644 index 00000000..856ffc36 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpLinkAttrName.java @@ -0,0 +1,134 @@ +/* + * 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.bgpio.types.attr; + +import java.util.Arrays; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.types.BgpErrorType; +import org.onosproject.bgpio.types.BgpValueType; +import org.onosproject.bgpio.util.Validation; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.common.base.MoreObjects; + +/** + * Implements BGP link name attribute. + */ +public class BgpLinkAttrName implements BgpValueType { + + protected static final Logger log = LoggerFactory + .getLogger(BgpLinkAttrName.class); + + public static final int ATTRLINK_NAME = 1098; + + /* Link Name */ + private byte[] linkName; + + /** + * Constructor to initialize the values. + * + * @param linkName link name + */ + public BgpLinkAttrName(byte[] linkName) { + this.linkName = Arrays.copyOf(linkName, linkName.length); + } + + /** + * Returns object of this class with specified values. + * + * @param linkName Prefix Metric + * @return object of BgpLinkAttrName + */ + public static BgpLinkAttrName of(byte[] linkName) { + return new BgpLinkAttrName(linkName); + } + + /** + * Reads the BGP link attributes Name. + * + * @param cb Channel buffer + * @return object of type BgpLinkAttrName + * @throws BgpParseException while parsing BgpLinkAttrName + */ + public static BgpLinkAttrName read(ChannelBuffer cb) + throws BgpParseException { + byte[] linkName; + short lsAttrLength = cb.readShort(); + + if (cb.readableBytes() < lsAttrLength) { + Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, + BgpErrorType.ATTRIBUTE_LENGTH_ERROR, + lsAttrLength); + } + + linkName = new byte[lsAttrLength]; + cb.readBytes(linkName); + return BgpLinkAttrName.of(linkName); + } + + /** + * Returns the link name. + * + * @return link name + */ + public byte[] attrLinkName() { + return linkName; + } + + @Override + public short getType() { + return ATTRLINK_NAME; + } + + @Override + public int hashCode() { + return Arrays.hashCode(linkName); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + + if (obj instanceof BgpLinkAttrName) { + BgpLinkAttrName other = (BgpLinkAttrName) obj; + return Arrays.equals(linkName, other.linkName); + } + return false; + } + + @Override + public int write(ChannelBuffer cb) { + // TODO This will be implemented in the next version + return 0; + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()).omitNullValues() + .add("linkName", linkName).toString(); + } + + @Override + public int compareTo(Object o) { + // TODO Auto-generated method stub + return 0; + } +} diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpLinkAttrOpaqLnkAttrib.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpLinkAttrOpaqLnkAttrib.java new file mode 100644 index 00000000..275b85be --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpLinkAttrOpaqLnkAttrib.java @@ -0,0 +1,139 @@ +/* + * 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.bgpio.types.attr; + +import java.util.Arrays; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.types.BgpErrorType; +import org.onosproject.bgpio.types.BgpValueType; +import org.onosproject.bgpio.util.Validation; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.common.base.MoreObjects; + +/** + * Implements BGP link opaque attribute. + */ +public final class BgpLinkAttrOpaqLnkAttrib implements BgpValueType { + + protected static final Logger log = LoggerFactory + .getLogger(BgpLinkAttrOpaqLnkAttrib.class); + + public static final int ATTRNODE_OPAQUELNKATTRIB = 1097; + + /* Opaque Node Attribute */ + private final byte[] opaqueLinkAttribute; + + /** + * Constructor to initialize the data. + * + * @param opaqueLinkAttribute opaque link attribute + */ + private BgpLinkAttrOpaqLnkAttrib(byte[] opaqueLinkAttribute) { + this.opaqueLinkAttribute = Arrays.copyOf(opaqueLinkAttribute, + opaqueLinkAttribute.length); + } + + /** + * Returns object of this class with specified values. + * + * @param opaqueLinkAttribute opaque link attribute + * @return object of BgpLinkAttrOpaqLnkAttrib + */ + public static BgpLinkAttrOpaqLnkAttrib of(final byte[] opaqueLinkAttribute) { + return new BgpLinkAttrOpaqLnkAttrib(opaqueLinkAttribute); + } + + /** + * Reads the BGP link attributes Opaque link attribute. + * + * @param cb Channel buffer + * @return object of type BgpLinkAttrOpaqLnkAttrib + * @throws BgpParseException while parsing BgpLinkAttrOpaqLnkAttrib + */ + public static BgpLinkAttrOpaqLnkAttrib read(ChannelBuffer cb) + throws BgpParseException { + + byte[] opaqueLinkAttribute; + + short lsAttrLength = cb.readShort(); + + if (cb.readableBytes() < lsAttrLength) { + Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, + BgpErrorType.ATTRIBUTE_LENGTH_ERROR, + lsAttrLength); + } + + opaqueLinkAttribute = new byte[lsAttrLength]; + cb.readBytes(opaqueLinkAttribute); + + return BgpLinkAttrOpaqLnkAttrib.of(opaqueLinkAttribute); + } + + /** + * Returns the Opaque link attribute. + * + * @return byte array of opaque link attribute. + */ + public byte[] attrOpaqueLnk() { + return opaqueLinkAttribute; + } + + @Override + public short getType() { + return ATTRNODE_OPAQUELNKATTRIB; + } + + @Override + public int hashCode() { + return Arrays.hashCode(opaqueLinkAttribute); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + + if (obj instanceof BgpLinkAttrOpaqLnkAttrib) { + BgpLinkAttrOpaqLnkAttrib other = (BgpLinkAttrOpaqLnkAttrib) obj; + return Arrays + .equals(opaqueLinkAttribute, other.opaqueLinkAttribute); + } + return false; + } + + @Override + public int write(ChannelBuffer cb) { + // TODO This will be implemented in the next version + return 0; + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()).omitNullValues() + .add("opaqueLinkAttribute", opaqueLinkAttribute).toString(); + } + + @Override + public int compareTo(Object o) { + // TODO Auto-generated method stub + return 0; + } +} diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpLinkAttrProtectionType.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpLinkAttrProtectionType.java new file mode 100644 index 00000000..59011d97 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpLinkAttrProtectionType.java @@ -0,0 +1,246 @@ +/* + * 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.bgpio.types.attr; + +import java.util.Objects; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.types.BgpErrorType; +import org.onosproject.bgpio.types.BgpValueType; +import org.onosproject.bgpio.util.Validation; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.common.base.MoreObjects; + +/** + * Implements BGP link protection type attribute. + */ +public final class BgpLinkAttrProtectionType implements BgpValueType { + + protected static final Logger log = LoggerFactory + .getLogger(BgpLinkAttrProtectionType.class); + + public static final int ATTRLINK_PROTECTIONTYPE = 1093; + public static final int LINK_PROTECTION_LEN = 2; + + public static final int EXTRA_TRAFFIC = 0x01; + public static final int UNPROTECTED = 0x02; + public static final int SHARED = 0x04; + public static final int DEDICATED_ONE_ISTO_ONE = 0x08; + public static final int DEDICATED_ONE_PLUS_ONE = 0x10; + public static final int ENHANCED = 0x20; + + /* Link Protection type flags */ + private final boolean bExtraTraffic; + private final boolean bUnprotected; + private final boolean bShared; + private final boolean bDedOneIstoOne; + private final boolean bDedOnePlusOne; + private final boolean bEnhanced; + + /** + * Constructor to initialize the value. + * + * @param bExtraTraffic Extra Traffic + * @param bUnprotected Unprotected + * @param bShared Shared + * @param bDedOneIstoOne Dedicated 1:1 + * @param bDedOnePlusOne Dedicated 1+1 + * @param bEnhanced Enhanced + */ + private BgpLinkAttrProtectionType(boolean bExtraTraffic, + boolean bUnprotected, + boolean bShared, boolean bDedOneIstoOne, + boolean bDedOnePlusOne, boolean bEnhanced) { + this.bExtraTraffic = bExtraTraffic; + this.bUnprotected = bUnprotected; + this.bShared = bShared; + this.bDedOneIstoOne = bDedOneIstoOne; + this.bDedOnePlusOne = bDedOnePlusOne; + this.bEnhanced = bEnhanced; + } + + /** + * Returns object of this class with specified values. + * + * @param bExtraTraffic Extra Traffic + * @param bUnprotected Unprotected + * @param bShared Shared + * @param bDedOneIstoOne Dedicated 1:1 + * @param bDedOnePlusOne Dedicated 1+1 + * @param bEnhanced Enhanced + * @return object of BgpLinkAttrProtectionType + */ + public static BgpLinkAttrProtectionType of(boolean bExtraTraffic, + boolean bUnprotected, + boolean bShared, + boolean bDedOneIstoOne, + boolean bDedOnePlusOne, + boolean bEnhanced) { + return new BgpLinkAttrProtectionType(bExtraTraffic, bUnprotected, + bShared, bDedOneIstoOne, + bDedOnePlusOne, bEnhanced); + } + + /** + * Reads the BGP link attributes protection type. + * + * @param cb Channel buffer + * @return object of type BgpLinkAttrProtectionType + * @throws BgpParseException while parsing BgpLinkAttrProtectionType + */ + public static BgpLinkAttrProtectionType read(ChannelBuffer cb) + throws BgpParseException { + short linkProtectionType; + byte higherByte; + short lsAttrLength = cb.readShort(); + + boolean bExtraTraffic; + boolean bUnprotected; + boolean bShared; + boolean bDedOneIstoOne; + boolean bDedOnePlusOne; + boolean bEnhanced; + + if ((lsAttrLength != LINK_PROTECTION_LEN) + || (cb.readableBytes() < lsAttrLength)) { + Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, + BgpErrorType.ATTRIBUTE_LENGTH_ERROR, + lsAttrLength); + } + + linkProtectionType = cb.readShort(); + higherByte = (byte) (linkProtectionType >> 8); + + bExtraTraffic = ((higherByte & (byte) EXTRA_TRAFFIC) == EXTRA_TRAFFIC); + bUnprotected = ((higherByte & (byte) UNPROTECTED) == UNPROTECTED); + bShared = ((higherByte & (byte) SHARED) == SHARED); + bDedOneIstoOne = ((higherByte & (byte) DEDICATED_ONE_ISTO_ONE) == DEDICATED_ONE_ISTO_ONE); + bDedOnePlusOne = ((higherByte & (byte) DEDICATED_ONE_PLUS_ONE) == DEDICATED_ONE_PLUS_ONE); + bEnhanced = ((higherByte & (byte) ENHANCED) == ENHANCED); + + return BgpLinkAttrProtectionType.of(bExtraTraffic, bUnprotected, + bShared, bDedOneIstoOne, + bDedOnePlusOne, bEnhanced); + } + + /** + * Returns ExtraTraffic Bit. + * + * @return ExtraTraffic Bit + */ + public boolean extraTraffic() { + return bExtraTraffic; + } + + /** + * Returns Unprotected Bit. + * + * @return Unprotected Bit + */ + public boolean unprotected() { + return bUnprotected; + } + + /** + * Returns Shared Bit. + * + * @return Shared Bit + */ + public boolean shared() { + return bShared; + } + + /** + * Returns DedOneIstoOne Bit. + * + * @return DedOneIstoOne Bit + */ + public boolean dedOneIstoOne() { + return bDedOneIstoOne; + } + + /** + * Returns DedOnePlusOne Bit. + * + * @return DedOnePlusOne Bit + */ + public boolean dedOnePlusOne() { + return bDedOnePlusOne; + } + + /** + * Returns Enhanced Bit. + * + * @return Enhanced Bit + */ + public boolean enhanced() { + return bEnhanced; + } + + @Override + public short getType() { + return ATTRLINK_PROTECTIONTYPE; + } + + @Override + public int hashCode() { + return Objects.hash(bExtraTraffic, bUnprotected, bShared, + bDedOneIstoOne, bDedOnePlusOne, bEnhanced); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + + if (obj instanceof BgpLinkAttrProtectionType) { + BgpLinkAttrProtectionType other = (BgpLinkAttrProtectionType) obj; + return Objects.equals(bExtraTraffic, other.bExtraTraffic) + && Objects.equals(bUnprotected, other.bUnprotected) + && Objects.equals(bShared, other.bShared) + && Objects.equals(bDedOneIstoOne, other.bDedOneIstoOne) + && Objects.equals(bDedOnePlusOne, other.bDedOnePlusOne) + && Objects.equals(bEnhanced, other.bEnhanced); + } + return false; + } + + @Override + public int write(ChannelBuffer cb) { + // TODO This will be implemented in the next version + return 0; + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()) + .add("bExtraTraffic", bExtraTraffic) + .add("bUnprotected", bUnprotected).add("bShared", bShared) + .add("bDedOneIstoOne", bDedOneIstoOne) + .add("bDedOnePlusOne", bDedOnePlusOne) + .add("bEnhanced", bEnhanced).toString(); + } + + @Override + public int compareTo(Object o) { + // TODO Auto-generated method stub + return 0; + } +} diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpLinkAttrSrlg.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpLinkAttrSrlg.java new file mode 100644 index 00000000..4a6f23f9 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpLinkAttrSrlg.java @@ -0,0 +1,136 @@ +/* + * 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.bgpio.types.attr; + +import java.util.ArrayList; +import java.util.List; +import java.util.Objects; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.types.BgpErrorType; +import org.onosproject.bgpio.types.BgpValueType; +import org.onosproject.bgpio.util.Validation; + +import com.google.common.base.MoreObjects; + +/** + * Implements BGP link Shared Risk Link Group attribute. + */ +public class BgpLinkAttrSrlg implements BgpValueType { + + public static final short ATTRNODE_SRLG = 1097; + + /* Shared Risk Link Group */ + private List<Integer> sRlg = new ArrayList<Integer>(); + + /** + * Constructor to initialize the date. + * + * @param sRlg Shared Risk link group data + */ + public BgpLinkAttrSrlg(List<Integer> sRlg) { + this.sRlg = sRlg; + } + + /** + * Returns object of this class with specified values. + * + * @param sRlg Shared Risk link group data + * @return object of BgpLinkAttrSrlg + */ + public static BgpLinkAttrSrlg of(ArrayList<Integer> sRlg) { + return new BgpLinkAttrSrlg(sRlg); + } + + /** + * Reads the BGP link attributes Shared Risk link group data. + * + * @param cb Channel buffer + * @return object of type BgpLinkAttrSrlg + * @throws BgpParseException while parsing BgpLinkAttrSrlg + */ + public static BgpLinkAttrSrlg read(ChannelBuffer cb) + throws BgpParseException { + int tempSrlg; + ArrayList<Integer> sRlg = new ArrayList<Integer>(); + + short lsAttrLength = cb.readShort(); + int len = lsAttrLength / Integer.SIZE; // each element is of 4 octets + + if (cb.readableBytes() < lsAttrLength) { + Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, + BgpErrorType.ATTRIBUTE_LENGTH_ERROR, + lsAttrLength); + } + + for (int i = 0; i < len; i++) { + tempSrlg = cb.readInt(); + sRlg.add(new Integer(tempSrlg)); + } + + return BgpLinkAttrSrlg.of(sRlg); + } + + /** + * Returns the Shared Risk link group data. + * + * @return array of Shared Risk link group data + */ + public List<Integer> attrSrlg() { + return sRlg; + } + + @Override + public short getType() { + return ATTRNODE_SRLG; + } + + @Override + public int hashCode() { + return Objects.hash(sRlg); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + + if (obj instanceof BgpLinkAttrSrlg) { + BgpLinkAttrSrlg other = (BgpLinkAttrSrlg) obj; + return Objects.equals(sRlg, other.sRlg); + } + return false; + } + + @Override + public int write(ChannelBuffer cb) { + // TODO This will be implemented in the next version + return 0; + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()).omitNullValues().add("sRlg", sRlg).toString(); + } + + @Override + public int compareTo(Object o) { + // TODO Auto-generated method stub + return 0; + } +} diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpLinkAttrTeDefaultMetric.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpLinkAttrTeDefaultMetric.java new file mode 100644 index 00000000..1ae7ecc5 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpLinkAttrTeDefaultMetric.java @@ -0,0 +1,138 @@ +/* + * 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.bgpio.types.attr; + +import java.util.Objects; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.types.BgpErrorType; +import org.onosproject.bgpio.types.BgpValueType; +import org.onosproject.bgpio.util.Validation; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.common.base.MoreObjects; + +/** + * Implements BGP link state Default TE metric link attribute. + */ +public class BgpLinkAttrTeDefaultMetric implements BgpValueType { + + protected static final Logger log = LoggerFactory + .getLogger(BgpLinkAttrTeDefaultMetric.class); + + public static final int ATTRLINK_TEDEFAULTMETRIC = 1092; + public static final int TE_DATA_LEN = 4; + + /* TE Default Metric */ + private int linkTeMetric; + + /** + * Constructor to initialize the value. + * + * @param linkTeMetric TE default metric + * + */ + public BgpLinkAttrTeDefaultMetric(int linkTeMetric) { + this.linkTeMetric = linkTeMetric; + } + + /** + * Returns object of this class with specified values. + * + * @param linkTeMetric TE default metric + * @return object of BgpLinkAttrTeDefaultMetric + */ + public static BgpLinkAttrTeDefaultMetric of(final int linkTeMetric) { + return new BgpLinkAttrTeDefaultMetric(linkTeMetric); + } + + /** + * Reads the BGP link attributes of TE default metric. + * + * @param cb Channel buffer + * @return object of type BgpLinkAttrTeDefaultMetric + * @throws BgpParseException while parsing BgpLinkAttrTeDefaultMetric + */ + public static BgpLinkAttrTeDefaultMetric read(ChannelBuffer cb) + throws BgpParseException { + int linkTeMetric; + + short lsAttrLength = cb.readShort(); + + if ((lsAttrLength != TE_DATA_LEN) + || (cb.readableBytes() < lsAttrLength)) { + Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, + BgpErrorType.ATTRIBUTE_LENGTH_ERROR, + lsAttrLength); + } + + linkTeMetric = cb.readInt(); + + return new BgpLinkAttrTeDefaultMetric(linkTeMetric); + } + + /** + * Returns the TE default metrics. + * + * @return link default metric + */ + public int attrLinkDefTeMetric() { + return linkTeMetric; + } + + @Override + public short getType() { + return ATTRLINK_TEDEFAULTMETRIC; + } + + @Override + public int hashCode() { + return Objects.hash(linkTeMetric); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + + if (obj instanceof BgpLinkAttrTeDefaultMetric) { + BgpLinkAttrTeDefaultMetric other = (BgpLinkAttrTeDefaultMetric) obj; + return Objects.equals(linkTeMetric, other.linkTeMetric); + } + return false; + } + + @Override + public int write(ChannelBuffer cb) { + // TODO This will be implemented in the next version + return 0; + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()) + .add("linkTEMetric", linkTeMetric).toString(); + } + + @Override + public int compareTo(Object o) { + // TODO Auto-generated method stub + return 0; + } +} diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpLinkAttrUnRsrvdLinkBandwidth.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpLinkAttrUnRsrvdLinkBandwidth.java new file mode 100644 index 00000000..c927eea5 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpLinkAttrUnRsrvdLinkBandwidth.java @@ -0,0 +1,163 @@ +/* + * 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.bgpio.types.attr; + +import java.util.ArrayList; +import java.util.List; +import java.util.Objects; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.types.BgpErrorType; +import org.onosproject.bgpio.types.BgpValueType; +import org.onosproject.bgpio.util.Validation; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.common.base.MoreObjects; + +/** + * Implements BGP unreserved bandwidth attribute. + */ +public class BgpLinkAttrUnRsrvdLinkBandwidth implements BgpValueType { + + protected static final Logger log = LoggerFactory + .getLogger(BgpLinkAttrUnRsrvdLinkBandwidth.class); + + public static final int MAX_BANDWIDTH_LEN = 4; + public static final int NO_OF_BITS = 8; + public static final int NO_OF_PRIORITY = 8; + + public short sType; + + /* ISIS administrative group */ + private List<Float> maxUnResBandwidth = new ArrayList<Float>(); + + /** + * Constructor to initialize the values. + * + * @param maxUnResBandwidth Maximum Unreserved bandwidth + * @param sType returns the tag value + */ + public BgpLinkAttrUnRsrvdLinkBandwidth(List<Float> maxUnResBandwidth, + short sType) { + this.maxUnResBandwidth = maxUnResBandwidth; + this.sType = sType; + } + + /** + * Returns object of this class with specified values. + * + * @param linkPfxMetric Prefix Metric + * @param sType returns the tag value + * @return object of BgpLinkAttrUnRsrvdLinkBandwidth + */ + public static BgpLinkAttrUnRsrvdLinkBandwidth of(List<Float> linkPfxMetric, short sType) { + return new BgpLinkAttrUnRsrvdLinkBandwidth(linkPfxMetric, sType); + } + + /** + * Reads the BGP link attributes of Maximum link bandwidth. + * + * @param cb Channel buffer + * @return object of type BgpLinkAttrMaxLinkBandwidth + * @throws BgpParseException while parsing BgpLinkAttrMaxLinkBandwidth + */ + public static BgpLinkAttrUnRsrvdLinkBandwidth read(ChannelBuffer cb, + short sType) + throws BgpParseException { + ArrayList<Float> maxUnResBandwidth = new ArrayList<Float>(); + float tmp; + short lsAttrLength = cb.readShort(); + + if ((lsAttrLength != MAX_BANDWIDTH_LEN * NO_OF_PRIORITY) + || (cb.readableBytes() < lsAttrLength)) { + Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, + BgpErrorType.ATTRIBUTE_LENGTH_ERROR, + lsAttrLength); + } + + for (int i = 0; i < NO_OF_PRIORITY; i++) { + tmp = ieeeToFloatRead(cb.readInt()) * NO_OF_BITS; + maxUnResBandwidth.add(new Float(tmp)); + } + + return BgpLinkAttrUnRsrvdLinkBandwidth.of(maxUnResBandwidth, sType); + } + + /** + * Returns maximum unreserved bandwidth. + * + * @return unreserved bandwidth. + */ + public List<Float> getLinkAttrUnRsrvdLinkBandwidth() { + return maxUnResBandwidth; + } + + /** + * Parse the IEEE floating point notation and returns it in normal float. + * + * @param iVal IEEE floating point number + * @return normal float + */ + static float ieeeToFloatRead(int iVal) { + iVal = (((iVal & 0xFF) << 24) | ((iVal & 0xFF00) << 8) + | ((iVal & 0xFF0000) >> 8) | ((iVal >> 24) & 0xFF)); + + return Float.intBitsToFloat(iVal); + } + + @Override + public short getType() { + return this.sType; + } + + @Override + public int hashCode() { + return Objects.hash(maxUnResBandwidth); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + + if (obj instanceof BgpLinkAttrUnRsrvdLinkBandwidth) { + BgpLinkAttrUnRsrvdLinkBandwidth other = (BgpLinkAttrUnRsrvdLinkBandwidth) obj; + return Objects.equals(maxUnResBandwidth, other.maxUnResBandwidth); + } + return false; + } + + @Override + public int write(ChannelBuffer cb) { + // TODO This will be implemented in the next version + return 0; + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()).omitNullValues() + .add("maxUnResBandwidth", maxUnResBandwidth).toString(); + } + + @Override + public int compareTo(Object o) { + // TODO Auto-generated method stub + return 0; + } +} diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpPrefixAttrExtRouteTag.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpPrefixAttrExtRouteTag.java new file mode 100644 index 00000000..a2d7c57e --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpPrefixAttrExtRouteTag.java @@ -0,0 +1,145 @@ +/* + * 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.bgpio.types.attr; + +import static com.google.common.base.Preconditions.checkNotNull; + +import java.util.ArrayList; +import java.util.List; +import java.util.Objects; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.types.BgpErrorType; +import org.onosproject.bgpio.types.BgpValueType; +import org.onosproject.bgpio.util.Validation; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.common.base.MoreObjects; + +/** + * Implements BGP prefix route Extended tag attribute. + */ +public class BgpPrefixAttrExtRouteTag implements BgpValueType { + + protected static final Logger log = LoggerFactory + .getLogger(BgpPrefixAttrExtRouteTag.class); + + public static final int ATTR_PREFIX_EXTROUTETAG = 1154; + public static final int ATTR_PREFIX_EXT_LEN = 8; + + /* Prefix Route Tag */ + private List<Long> pfxExtRouteTag = new ArrayList<Long>(); + + /** + * Constructor to initialize the values. + * + * @param pfxExtRouteTag Extended route tag + */ + public BgpPrefixAttrExtRouteTag(List<Long> pfxExtRouteTag) { + this.pfxExtRouteTag = checkNotNull(pfxExtRouteTag); + } + + /** + * Returns object of this class with specified values. + * + * @param pfxExtRouteTag Prefix Metric + * @return object of BgpPrefixAttrMetric + */ + public static BgpPrefixAttrExtRouteTag of(ArrayList<Long> pfxExtRouteTag) { + return new BgpPrefixAttrExtRouteTag(pfxExtRouteTag); + } + + /** + * Reads the Extended Tag. + * + * @param cb ChannelBuffer + * @return object of BgpPrefixAttrExtRouteTag + * @throws BgpParseException while parsing BgpPrefixAttrExtRouteTag + */ + public static BgpPrefixAttrExtRouteTag read(ChannelBuffer cb) + throws BgpParseException { + ArrayList<Long> pfxExtRouteTag = new ArrayList<Long>(); + long temp; + + short lsAttrLength = cb.readShort(); + int len = lsAttrLength / ATTR_PREFIX_EXT_LEN; + + if (cb.readableBytes() < lsAttrLength) { + Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, + BgpErrorType.ATTRIBUTE_LENGTH_ERROR, + lsAttrLength); + } + + for (int i = 0; i < len; i++) { + temp = cb.readLong(); + pfxExtRouteTag.add(new Long(temp)); + } + + return new BgpPrefixAttrExtRouteTag(pfxExtRouteTag); + } + + /** + * Returns Extended route tag. + * + * @return route tag + */ + public List<Long> pfxExtRouteTag() { + return pfxExtRouteTag; + } + + @Override + public short getType() { + return ATTR_PREFIX_EXTROUTETAG; + } + + @Override + public int hashCode() { + return Objects.hash(pfxExtRouteTag); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + + if (obj instanceof BgpPrefixAttrExtRouteTag) { + BgpPrefixAttrExtRouteTag other = (BgpPrefixAttrExtRouteTag) obj; + return Objects.equals(pfxExtRouteTag, other.pfxExtRouteTag); + } + return false; + } + + @Override + public int write(ChannelBuffer cb) { + // TODO This will be implemented in the next version + return 0; + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()).omitNullValues() + .add("pfxExtRouteTag", pfxExtRouteTag).toString(); + } + + @Override + public int compareTo(Object o) { + // TODO Auto-generated method stub + return 0; + } +} diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpPrefixAttrIgpFlags.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpPrefixAttrIgpFlags.java new file mode 100644 index 00000000..4e84191a --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpPrefixAttrIgpFlags.java @@ -0,0 +1,204 @@ +/* + * 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.bgpio.types.attr; + +import java.util.Objects; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.types.BgpErrorType; +import org.onosproject.bgpio.types.BgpValueType; +import org.onosproject.bgpio.util.Validation; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.common.base.MoreObjects; + +/** + * Implements BGP prefix IGP Flag attribute. + */ +public final class BgpPrefixAttrIgpFlags implements BgpValueType { + + protected static final Logger log = LoggerFactory + .getLogger(BgpPrefixAttrIgpFlags.class); + + public static final int ATTR_PREFIX_FLAGBIT = 1152; + public static final int ATTR_PREFIX_FLAG_LEN = 1; + + public static final byte FIRST_BIT = (byte) 0x80; + public static final byte SECOND_BIT = 0x40; + public static final byte THIRD_BIT = 0x20; + public static final byte FOURTH_BIT = 0x01; + + /* Prefix IGP flag bit TLV */ + private final boolean bisisUpDownBit; + private final boolean bOspfNoUnicastBit; + private final boolean bOspfLclAddrBit; + private final boolean bOspfNSSABit; + + /** + * Constructor to initialize the value. + * + * @param bisisUpDownBit IS-IS Up/Down Bit + * @param bOspfNoUnicastBit OSPF no unicast Bit + * @param bOspfLclAddrBit OSPF local address Bit + * @param bOspfNSSABit OSPF propagate NSSA Bit + */ + BgpPrefixAttrIgpFlags(boolean bisisUpDownBit, + boolean bOspfNoUnicastBit, + boolean bOspfLclAddrBit, boolean bOspfNSSABit) { + this.bisisUpDownBit = bisisUpDownBit; + this.bOspfNoUnicastBit = bOspfNoUnicastBit; + this.bOspfLclAddrBit = bOspfLclAddrBit; + this.bOspfNSSABit = bOspfNSSABit; + } + + /** + * Returns object of this class with specified values. + * + * @param bisisUpDownBit IS-IS Up/Down Bit + * @param bOspfNoUnicastBit OSPF no unicast Bit + * @param bOspfLclAddrBit OSPF local address Bit + * @param bOspfNSSABit OSPF propagate NSSA Bit + * @return object of BgpPrefixAttrIGPFlags + */ + public static BgpPrefixAttrIgpFlags of(final boolean bisisUpDownBit, + final boolean bOspfNoUnicastBit, + final boolean bOspfLclAddrBit, + final boolean bOspfNSSABit) { + return new BgpPrefixAttrIgpFlags(bisisUpDownBit, bOspfNoUnicastBit, + bOspfLclAddrBit, bOspfNSSABit); + } + + /** + * Reads the IGP Flags. + * + * @param cb ChannelBuffer + * @return object of BgpPrefixAttrIGPFlags + * @throws BgpParseException while parsing BgpPrefixAttrIGPFlags + */ + public static BgpPrefixAttrIgpFlags read(ChannelBuffer cb) + throws BgpParseException { + boolean bisisUpDownBit = false; + boolean bOspfNoUnicastBit = false; + boolean bOspfLclAddrBit = false; + boolean bOspfNSSABit = false; + + short lsAttrLength = cb.readShort(); + + if ((lsAttrLength != ATTR_PREFIX_FLAG_LEN) + || (cb.readableBytes() < lsAttrLength)) { + Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, + BgpErrorType.ATTRIBUTE_LENGTH_ERROR, + lsAttrLength); + } + + byte nodeFlagBits = cb.readByte(); + + bisisUpDownBit = ((nodeFlagBits & FIRST_BIT) == FIRST_BIT); + bOspfNoUnicastBit = ((nodeFlagBits & SECOND_BIT) == SECOND_BIT); + bOspfLclAddrBit = ((nodeFlagBits & THIRD_BIT) == THIRD_BIT); + bOspfNSSABit = ((nodeFlagBits & FOURTH_BIT) == FOURTH_BIT); + + return BgpPrefixAttrIgpFlags.of(bisisUpDownBit, bOspfNoUnicastBit, + bOspfLclAddrBit, bOspfNSSABit); + } + + /** + * Returns the IS-IS Up/Down Bit set or not. + * + * @return IS-IS Up/Down Bit set or not + */ + public boolean isisUpDownBit() { + return bisisUpDownBit; + } + + /** + * Returns the OSPF no unicast Bit set or not. + * + * @return OSPF no unicast Bit set or not + */ + public boolean ospfNoUnicastBit() { + return bOspfNoUnicastBit; + } + + /** + * Returns the OSPF local address Bit set or not. + * + * @return OSPF local address Bit set or not + */ + public boolean ospfLclAddrBit() { + return bOspfLclAddrBit; + } + + /** + * Returns the OSPF propagate NSSA Bit set or not. + * + * @return OSPF propagate NSSA Bit set or not + */ + public boolean ospfNSSABit() { + return bOspfNSSABit; + } + + @Override + public short getType() { + return ATTR_PREFIX_FLAGBIT; + } + + @Override + public int write(ChannelBuffer cb) { + // TODO This will be implemented in the next version + return 0; + } + + @Override + public int hashCode() { + return Objects.hash(bisisUpDownBit, bOspfNoUnicastBit, bOspfLclAddrBit, + bOspfNSSABit); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + + if (obj instanceof BgpPrefixAttrIgpFlags) { + BgpPrefixAttrIgpFlags other = (BgpPrefixAttrIgpFlags) obj; + return Objects.equals(bisisUpDownBit, other.bisisUpDownBit) + && Objects.equals(bOspfNoUnicastBit, + other.bOspfNoUnicastBit) + && Objects.equals(bOspfLclAddrBit, other.bOspfLclAddrBit) + && Objects.equals(bOspfNSSABit, other.bOspfNSSABit); + } + return false; + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()) + .add("bisisUpDownBit", bisisUpDownBit) + .add("bOspfNoUnicastBit", bOspfNoUnicastBit) + .add("bOspfLclAddrBit", bOspfLclAddrBit) + .add("bOspfNSSABit", bOspfNSSABit).toString(); + } + + @Override + public int compareTo(Object o) { + // TODO Auto-generated method stub + return 0; + } +} diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpPrefixAttrMetric.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpPrefixAttrMetric.java new file mode 100644 index 00000000..1886102c --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpPrefixAttrMetric.java @@ -0,0 +1,137 @@ +/* + * 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.bgpio.types.attr; + +import java.util.Objects; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.types.BgpErrorType; +import org.onosproject.bgpio.types.BgpValueType; +import org.onosproject.bgpio.util.Validation; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.common.base.MoreObjects; + +/** + * Implements BGP prefix metric attribute. + */ +public class BgpPrefixAttrMetric implements BgpValueType { + + protected static final Logger log = LoggerFactory + .getLogger(BgpPrefixAttrMetric.class); + + public static final int ATTR_PREFIX_METRIC = 1155; + public static final int ATTR_PREFIX_LEN = 4; + + /* TE Default Metric */ + private final int linkPfxMetric; + + /** + * Constructor to initialize value. + * + * @param linkPfxMetric Prefix Metric + */ + public BgpPrefixAttrMetric(int linkPfxMetric) { + this.linkPfxMetric = linkPfxMetric; + } + + /** + * Returns object of this class with specified values. + * + * @param linkPfxMetric Prefix Metric + * @return object of BgpPrefixAttrMetric + */ + public static BgpPrefixAttrMetric of(final int linkPfxMetric) { + return new BgpPrefixAttrMetric(linkPfxMetric); + } + + /** + * Reads the Prefix Metric. + * + * @param cb ChannelBuffer + * @return object of BgpPrefixAttrMetric + * @throws BgpParseException while parsing BgpPrefixAttrMetric + */ + public static BgpPrefixAttrMetric read(ChannelBuffer cb) + throws BgpParseException { + int linkPfxMetric; + + short lsAttrLength = cb.readShort(); // 4 Bytes + + if ((lsAttrLength != ATTR_PREFIX_LEN) + || (cb.readableBytes() < lsAttrLength)) { + Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, + BgpErrorType.ATTRIBUTE_LENGTH_ERROR, + lsAttrLength); + } + + linkPfxMetric = cb.readInt(); + + return BgpPrefixAttrMetric.of(linkPfxMetric); + } + + /** + * Returns the Prefix Metric. + * + * @return Prefix Metric + */ + public int attrPfxMetric() { + return linkPfxMetric; + } + + @Override + public short getType() { + return ATTR_PREFIX_METRIC; + } + + @Override + public int hashCode() { + return Objects.hash(linkPfxMetric); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + + if (obj instanceof BgpPrefixAttrMetric) { + BgpPrefixAttrMetric other = (BgpPrefixAttrMetric) obj; + return Objects.equals(linkPfxMetric, other.linkPfxMetric); + } + return false; + } + + @Override + public int write(ChannelBuffer cb) { + // TODO This will be implemented in the next version + return 0; + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()) + .add("linkPfxMetric", linkPfxMetric).toString(); + } + + @Override + public int compareTo(Object o) { + // TODO Auto-generated method stub + return 0; + } +} diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpPrefixAttrOpaqueData.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpPrefixAttrOpaqueData.java new file mode 100644 index 00000000..6f7a74bb --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpPrefixAttrOpaqueData.java @@ -0,0 +1,139 @@ +/* + * 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.bgpio.types.attr; + +import java.util.Arrays; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.types.BgpErrorType; +import org.onosproject.bgpio.types.BgpValueType; +import org.onosproject.bgpio.util.Validation; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.common.base.MoreObjects; + +/** + * Implements BGP prefix opaque data attribute. + */ +public final class BgpPrefixAttrOpaqueData implements BgpValueType { + + protected static final Logger log = LoggerFactory + .getLogger(BgpPrefixAttrOpaqueData.class); + + public static final int ATTR_PREFIX_OPAQUEDATA = 1157; + + /* Opaque Node Attribute */ + private final byte[] opaquePrefixAttribute; + + /** + * Constructor to initialize the values. + * + * @param opaquePrefixAttribute opaque prefix data + */ + public BgpPrefixAttrOpaqueData(byte[] opaquePrefixAttribute) { + this.opaquePrefixAttribute = Arrays + .copyOf(opaquePrefixAttribute, opaquePrefixAttribute.length); + } + + /** + * Returns object of this class with specified values. + * + * @param opaquePrefixAttribute opaque prefix data + * @return object of BgpPrefixAttrOpaqueData + */ + public static BgpPrefixAttrOpaqueData of(final byte[] opaquePrefixAttribute) { + return new BgpPrefixAttrOpaqueData(opaquePrefixAttribute); + } + + /** + * Reads the Opaque Prefix Attribute. + * + * @param cb ChannelBuffer + * @return object of BgpPrefixAttrOpaqueData + * @throws BgpParseException while parsing BgpPrefixAttrOpaqueData + */ + public static BgpPrefixAttrOpaqueData read(ChannelBuffer cb) + throws BgpParseException { + byte[] opaquePrefixAttribute; + + short lsAttrLength = cb.readShort(); + opaquePrefixAttribute = new byte[lsAttrLength]; + + if (cb.readableBytes() < lsAttrLength) { + Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, + BgpErrorType.ATTRIBUTE_LENGTH_ERROR, + lsAttrLength); + } + + cb.readBytes(opaquePrefixAttribute); + + return BgpPrefixAttrOpaqueData.of(opaquePrefixAttribute); + } + + /** + * Returns the Opaque prefix attribute name. + * + * @return opaque prefix name + */ + public byte[] getOpaquePrefixAttribute() { + return opaquePrefixAttribute; + } + + @Override + public short getType() { + return ATTR_PREFIX_OPAQUEDATA; + } + + @Override + public int hashCode() { + return Arrays.hashCode(opaquePrefixAttribute); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + + if (obj instanceof BgpPrefixAttrOpaqueData) { + BgpPrefixAttrOpaqueData other = (BgpPrefixAttrOpaqueData) obj; + return Arrays.equals(opaquePrefixAttribute, + other.opaquePrefixAttribute); + } + return false; + } + + @Override + public int write(ChannelBuffer cb) { + // TODO This will be implemented in the next version + return 0; + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()).omitNullValues() + .add("opaquePrefixAttribute", getOpaquePrefixAttribute()) + .toString(); + } + + @Override + public int compareTo(Object o) { + // TODO Auto-generated method stub + return 0; + } +} diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpPrefixAttrOspfFwdAddr.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpPrefixAttrOspfFwdAddr.java new file mode 100644 index 00000000..4e9db1ee --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpPrefixAttrOspfFwdAddr.java @@ -0,0 +1,193 @@ +/* + * 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.bgpio.types.attr; + +import java.util.Objects; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onlab.packet.Ip4Address; +import org.onlab.packet.Ip6Address; +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.types.BgpErrorType; +import org.onosproject.bgpio.types.BgpValueType; +import org.onosproject.bgpio.util.Validation; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.common.base.MoreObjects; + +/** + * Implements BGP prefix OSPF Forwarding address attribute. + */ +public class BgpPrefixAttrOspfFwdAddr implements BgpValueType { + + protected static final Logger log = LoggerFactory + .getLogger(BgpPrefixAttrOspfFwdAddr.class); + + public static final int ATTR_PREFIX_OSPFFWDADDR = 1156; + public static final int IPV4_LEN = 4; + public static final int IPV6_LEN = 16; + + /* OSPF Forwarding Address */ + private final short lsAttrLength; + private final Ip4Address ip4RouterId; + private final Ip6Address ip6RouterId; + + /** + * Constructor to initialize the value. + * + * @param lsAttrLength length of the IP address + * @param ip4RouterId Valid IPV4 address if length is 4 else null + * @param ip6RouterId Valid IPV6 address if length is 16 else null + */ + public BgpPrefixAttrOspfFwdAddr(short lsAttrLength, Ip4Address ip4RouterId, + Ip6Address ip6RouterId) { + this.lsAttrLength = lsAttrLength; + this.ip4RouterId = ip4RouterId; + this.ip6RouterId = ip6RouterId; + } + + /** + * Returns object of this class with specified values. + * + * @param lsAttrLength length of the IP address + * @param ip4RouterId Valid IPV4 address if length is 4 else null + * @param ip6RouterId Valid IPV6 address if length is 16 else null + * @return object of BgpPrefixAttrOspfFwdAddr + */ + public static BgpPrefixAttrOspfFwdAddr of(final short lsAttrLength, + final Ip4Address ip4RouterId, + final Ip6Address ip6RouterId) { + return new BgpPrefixAttrOspfFwdAddr(lsAttrLength, ip4RouterId, + ip6RouterId); + } + + /** + * Reads the OSPF Forwarding Address. + * + * @param cb ChannelBuffer + * @return object of BgpPrefixAttrOSPFFwdAddr + * @throws BgpParseException while parsing BgpPrefixAttrOspfFwdAddr + */ + public static BgpPrefixAttrOspfFwdAddr read(ChannelBuffer cb) + throws BgpParseException { + short lsAttrLength; + byte[] ipBytes; + Ip4Address ip4RouterId = null; + Ip6Address ip6RouterId = null; + + lsAttrLength = cb.readShort(); + ipBytes = new byte[lsAttrLength]; + + if ((cb.readableBytes() < lsAttrLength)) { + Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, + BgpErrorType.ATTRIBUTE_LENGTH_ERROR, + lsAttrLength); + } + + cb.readBytes(ipBytes); + + if (IPV4_LEN == lsAttrLength) { + ip4RouterId = Ip4Address.valueOf(ipBytes); + } else if (IPV6_LEN == lsAttrLength) { + ip6RouterId = Ip6Address.valueOf(ipBytes); + } + + return BgpPrefixAttrOspfFwdAddr.of(lsAttrLength, ip4RouterId, + ip6RouterId); + } + + /** + * Returns IPV4 Address of OSPF forwarding address. + * + * @return IPV4 address + */ + public Ip4Address ospfv4FwdAddr() { + return ip4RouterId; + } + + /** + * Returns IPV6 Address of OSPF forwarding address. + * + * @return IPV6 address + */ + public Ip6Address ospfv6FwdAddr() { + return ip6RouterId; + } + + /** + * Returns OSPF forwarding address length. + * + * @return length of the ip address + */ + public short ospfFwdAddrLen() { + return lsAttrLength; + } + + @Override + public short getType() { + return ATTR_PREFIX_OSPFFWDADDR; + } + + @Override + public int hashCode() { + if (IPV4_LEN == lsAttrLength) { + return Objects.hash(ip4RouterId); + } else { + return Objects.hash(ip6RouterId); + } + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + + if (obj instanceof BgpPrefixAttrOspfFwdAddr) { + BgpPrefixAttrOspfFwdAddr other = (BgpPrefixAttrOspfFwdAddr) obj; + if (IPV4_LEN == lsAttrLength) { + return Objects.equals(ip4RouterId, other.ip4RouterId); + } else { + return Objects.equals(ip6RouterId, other.ip6RouterId); + } + } + return false; + } + + @Override + public int write(ChannelBuffer cb) { + // TODO This will be implemented in the next version + return 0; + } + + @Override + public String toString() { + if (IPV4_LEN == lsAttrLength) { + return MoreObjects.toStringHelper(getClass()).omitNullValues() + .add("ip4RouterId", ip4RouterId).toString(); + } else { + return MoreObjects.toStringHelper(getClass()).omitNullValues() + .add("ip6RouterId", ip6RouterId).toString(); + } + } + + @Override + public int compareTo(Object o) { + // TODO Auto-generated method stub + return 0; + } +} diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpPrefixAttrRouteTag.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpPrefixAttrRouteTag.java new file mode 100644 index 00000000..3894c003 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpPrefixAttrRouteTag.java @@ -0,0 +1,142 @@ +/* + * 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.bgpio.types.attr; + +import java.util.ArrayList; +import java.util.List; +import java.util.Objects; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.onosproject.bgpio.types.BgpErrorType; +import org.onosproject.bgpio.types.BgpValueType; +import org.onosproject.bgpio.util.Validation; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.common.base.MoreObjects; + +/** + * Implements BGP prefix route tag attribute. + */ +public class BgpPrefixAttrRouteTag implements BgpValueType { + + protected static final Logger log = LoggerFactory + .getLogger(BgpPrefixAttrRouteTag.class); + + public static final short ATTR_PREFIX_ROUTETAG = 1153; + + /* Prefix Route Tag */ + private List<Integer> pfxRouteTag = new ArrayList<Integer>(); + + /** + * Constructor to initialize the values. + * + * @param pfxRouteTag prefix route tag + */ + public BgpPrefixAttrRouteTag(List<Integer> pfxRouteTag) { + this.pfxRouteTag = pfxRouteTag; + } + + /** + * Returns object of this class with specified values. + * + * @param pfxRouteTag Prefix Metric + * @return object of BgpPrefixAttrRouteTag + */ + public static BgpPrefixAttrRouteTag of(ArrayList<Integer> pfxRouteTag) { + return new BgpPrefixAttrRouteTag(pfxRouteTag); + } + + /** + * Reads the Route Tag. + * + * @param cb ChannelBuffer + * @return object of BgpPrefixAttrRouteTag + * @throws BgpParseException while parsing BgpPrefixAttrRouteTag + */ + public static BgpPrefixAttrRouteTag read(ChannelBuffer cb) + throws BgpParseException { + int tmp; + ArrayList<Integer> pfxRouteTag = new ArrayList<Integer>(); + + short lsAttrLength = cb.readShort(); + int len = lsAttrLength / Integer.SIZE; + + if (cb.readableBytes() < lsAttrLength) { + Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, + BgpErrorType.ATTRIBUTE_LENGTH_ERROR, + lsAttrLength); + } + + for (int i = 0; i < len; i++) { + tmp = cb.readInt(); + pfxRouteTag.add(new Integer(tmp)); + } + + return BgpPrefixAttrRouteTag.of(pfxRouteTag); + } + + /** + * Returns the prefix route tag. + * + * @return route tag + */ + public List<Integer> getPfxRouteTag() { + return pfxRouteTag; + } + + @Override + public short getType() { + return ATTR_PREFIX_ROUTETAG; + } + + @Override + public int hashCode() { + return Objects.hash(pfxRouteTag); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + + if (obj instanceof BgpPrefixAttrRouteTag) { + BgpPrefixAttrRouteTag other = (BgpPrefixAttrRouteTag) obj; + return Objects.equals(pfxRouteTag, other.pfxRouteTag); + } + return false; + } + + @Override + public int write(ChannelBuffer cb) { + // TODO This will be implemented in the next version + return 0; + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()).omitNullValues() + .add("pfxRouteTag", pfxRouteTag).toString(); + } + + @Override + public int compareTo(Object o) { + // TODO Auto-generated method stub + return 0; + } +} diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/package-info.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/package-info.java new file mode 100755 index 00000000..e2a74dbc --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/package-info.java @@ -0,0 +1,20 @@ +/* + * 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. + */ + +/** + * Implementation of BGP Link state attribute Tlvs. + */ +package org.onosproject.bgpio.types.attr; diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/package-info.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/package-info.java new file mode 100755 index 00000000..1f2ed95e --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/package-info.java @@ -0,0 +1,20 @@ +/* + * 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. + */ + +/** + * Implementation of Tlvs, Attributes and Descriptors. + */ +package org.onosproject.bgpio.types; diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/util/Constants.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/util/Constants.java new file mode 100644 index 00000000..9649bf16 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/util/Constants.java @@ -0,0 +1,37 @@ +/* + * 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.bgpio.util; + +/** + * Provides Constants usage for BGP. + */ +public final class Constants { + private Constants() { + } + + public static final short TYPE_AND_LEN = 4; + public static final short TYPE_AND_LEN_AS_SHORT = 4; + public static final short TYPE_AND_LEN_AS_BYTE = 3; + public static final int ISIS_LEVELONE = 1; + public static final int ISIS_LEVELTWO = 2; + public static final int OSPFV2 = 3; + public static final int DIRECT = 4; + public static final int STATIC_CONFIGURATION = 5; + public static final int OSPFV3 = 6; + public static final short AFI_VALUE = 16388; + public static final byte VPN_SAFI_VALUE = (byte) 0x80; + public static final byte SAFI_VALUE = 71; +}
\ No newline at end of file diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/util/UnSupportedAttribute.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/util/UnSupportedAttribute.java new file mode 100644 index 00000000..663b1e9a --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/util/UnSupportedAttribute.java @@ -0,0 +1,51 @@ +/* + * 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.bgpio.util; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +/** + * Provides methods to handle UnSupportedAttribute. + */ +public final class UnSupportedAttribute { + protected static final Logger log = LoggerFactory.getLogger(UnSupportedAttribute.class); + + private UnSupportedAttribute() { + } + + /** + * Reads channel buffer parses attribute header and skips specified length. + * + * @param cb channelBuffer + */ + public static void read(ChannelBuffer cb) { + Validation parseFlags = Validation.parseAttributeHeader(cb); + cb.skipBytes(parseFlags.getLength()); + } + + /** + * Skip specified bytes in channel buffer. + * + * @param cb channelBuffer + * @param length to be skipped + */ + public static void skipBytes(ChannelBuffer cb, short length) { + cb.skipBytes(length); + } +}
\ No newline at end of file diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/util/Validation.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/util/Validation.java new file mode 100644 index 00000000..23dd1a75 --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/util/Validation.java @@ -0,0 +1,223 @@ +/* + * 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.bgpio.util; + +import java.net.InetAddress; +import java.net.UnknownHostException; +import java.util.Arrays; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.jboss.netty.buffer.ChannelBuffers; +import org.onlab.packet.IpAddress; +import org.onlab.packet.IpPrefix; +import org.onosproject.bgpio.exceptions.BgpParseException; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.common.primitives.Ints; + +/** + * Provides methods to parse attribute header, validate length and type. + */ +public class Validation { + private static final Logger log = LoggerFactory.getLogger(Validation.class); + public static final byte FIRST_BIT = (byte) 0x80; + public static final byte SECOND_BIT = 0x40; + public static final byte THIRD_BIT = 0x20; + public static final byte FOURTH_BIT = (byte) 0x10; + public static final byte IPV4_SIZE = 4; + private boolean firstBit; + private boolean secondBit; + private boolean thirdBit; + private boolean fourthBit; + private int len; + private boolean isShort; + + /** + * Constructor to initialize parameter. + * + * @param firstBit in AttributeFlags + * @param secondBit in AttributeFlags + * @param thirdBit in AttributeFlags + * @param fourthBit in AttributeFlags + * @param len length + * @param isShort true if length is read as short otherwise false + */ + Validation(boolean firstBit, boolean secondBit, boolean thirdBit, boolean fourthBit, int len, boolean isShort) { + this.firstBit = firstBit; + this.secondBit = secondBit; + this.thirdBit = thirdBit; + this.fourthBit = fourthBit; + this.len = len; + this.isShort = isShort; + } + + /** + * Parses attribute Header. + * + * @param cb ChannelBuffer + * @return object of Validation + */ + public static Validation parseAttributeHeader(ChannelBuffer cb) { + + boolean firstBit; + boolean secondBit; + boolean thirdBit; + boolean fourthBit; + boolean isShort; + byte flags = cb.readByte(); + byte typeCode = cb.readByte(); + byte temp = flags; + //first Bit : Optional (1) or well-known (0) + firstBit = ((temp & FIRST_BIT) == FIRST_BIT); + //second Bit : Transitive (1) or non-Transitive (0) + secondBit = ((temp & SECOND_BIT) == SECOND_BIT); + //third Bit : partial (1) or complete (0) + thirdBit = ((temp & THIRD_BIT) == THIRD_BIT); + //forth Bit(Extended Length bit) : Attribute Length is 1 octects (0) or 2 octects (1) + fourthBit = ((temp & FOURTH_BIT) == FOURTH_BIT); + int len; + if (fourthBit) { + isShort = true; + short length = cb.readShort(); + len = length; + } else { + isShort = false; + byte length = cb.readByte(); + len = length; + } + return new Validation(firstBit, secondBit, thirdBit, fourthBit, len, isShort); + } + + /** + * Throws exception if length is not correct. + * + * @param errorCode Error code + * @param subErrCode Sub Error Code + * @param length erroneous length + * @throws BgpParseException for erroneous length + */ + public static void validateLen(byte errorCode, byte subErrCode, int length) throws BgpParseException { + byte[] errLen = Ints.toByteArray(length); + ChannelBuffer buffer = ChannelBuffers.dynamicBuffer(); + buffer.writeBytes(errLen); + throw new BgpParseException(errorCode, subErrCode, buffer); + } + + /** + * Throws exception if type is not correct. + * + * @param errorCode Error code + * @param subErrCode Sub Error Code + * @param type erroneous type + * @throws BgpParseException for erroneous type + */ + public static void validateType(byte errorCode, byte subErrCode, int type) throws BgpParseException { + byte[] errType = Ints.toByteArray(type); + ChannelBuffer buffer = ChannelBuffers.dynamicBuffer(); + buffer.writeBytes(errType); + throw new BgpParseException(errorCode, subErrCode, buffer); + } + + /** + * Convert byte array to InetAddress. + * + * @param length of IpAddress + * @param cb channelBuffer + * @return InetAddress + */ + public static InetAddress toInetAddress(int length, ChannelBuffer cb) { + byte[] address = new byte[length]; + cb.readBytes(address, 0, length); + InetAddress ipAddress = null; + try { + ipAddress = InetAddress.getByAddress(address); + } catch (UnknownHostException e) { + log.info("InetAddress convertion failed"); + } + return ipAddress; + } + + /** + * Returns first bit in type flags. + * + * @return first bit in type flags + */ + public boolean getFirstBit() { + return this.firstBit; + } + + /** + * Returns second bit in type flags. + * + * @return second bit in type flags + */ + public boolean getSecondBit() { + return this.secondBit; + } + + /** + * Returns third bit in type flags. + * + * @return third bit in type flags + */ + public boolean getThirdBit() { + return this.thirdBit; + } + + /** + * Returns fourth bit in type flags. + * + * @return fourth bit in type flags + */ + public boolean getFourthBit() { + return this.fourthBit; + } + + /** + * Returns attribute length. + * + * @return attribute length + */ + public int getLength() { + return this.len; + } + + /** + * Returns whether attribute length read in short or byte. + * + * @return whether attribute length read in short or byte + */ + public boolean isShort() { + return this.isShort; + } + + /** + * Converts byte array of prefix value to IpPrefix object. + * + * @param value byte array of prefix value + * @param length prefix length in bits + * @return object of IpPrefix + */ + public static IpPrefix bytesToPrefix(byte[] value, int length) { + if (value.length != IPV4_SIZE) { + value = Arrays.copyOf(value, IPV4_SIZE); + } + IpPrefix ipPrefix = IpPrefix.valueOf(IpAddress.Version.INET, value, length); + return ipPrefix; + } +}
\ No newline at end of file diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/util/package-info.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/util/package-info.java new file mode 100755 index 00000000..3229d89a --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/util/package-info.java @@ -0,0 +1,20 @@ +/* + * 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. + */ + +/** + * Implementation of BGP utility functions. + */ +package org.onosproject.bgpio.util; |