Java Code Examples for org.jboss.netty.buffer.ChannelBuffer#copy()
The following examples show how to use
org.jboss.netty.buffer.ChannelBuffer#copy() .
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Example 1
| Source File: BgpPrefixLSIdentifier.java From onos with Apache License 2.0 | 6 votes |
|
/**
* 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;
}
Example 2
| Source File: Origin.java From onos with Apache License 2.0 | 6 votes |
|
/**
* 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);
}
Example 3
| Source File: NextHop.java From onos with Apache License 2.0 | 6 votes |
|
/**
* 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);
}
Example 4
| Source File: LocalPref.java From onos with Apache License 2.0 | 6 votes |
|
/**
* 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);
}
Example 5
| Source File: Med.java From onos with Apache License 2.0 | 6 votes |
|
/**
* 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);
}
Example 6
| Source File: BgpNodeLSIdentifier.java From onos with Apache License 2.0 | 6 votes |
|
/**
* 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);
}
Example 7
| Source File: BgpLinkLSIdentifier.java From onos with Apache License 2.0 | 6 votes |
|
/**
* 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;
}
Example 8
| Source File: OFActionTunnelDstIPTest.java From floodlight_with_topoguard with Apache License 2.0 | 6 votes |
|
private void testAll(OFActionTunnelDstIP tip) {
assertEquals(OFActionType.VENDOR, tip.getType());
assertEquals(2, tip.getSubtype());
assertEquals(16, tip.getLength());
assertEquals(0x005c16c7, tip.getVendor());
tip.setTunnelDstIP(24);
assertEquals(24, tip.getTunnelDstIP());
// Test wire format
int ip = IPv4.toIPv4Address("17.33.49.65");
tip.setTunnelDstIP(ip);
ChannelBuffer buf = ChannelBuffers.buffer(32);
tip.writeTo(buf);
ChannelBuffer buf2 = buf.copy();
assertEquals(16, buf.readableBytes());
byte fromBuffer[] = new byte[16];
buf.readBytes(fromBuffer);
assertArrayEquals(expectedWireFormat1, fromBuffer);
OFActionTunnelDstIP act2 = new OFActionTunnelDstIP();
act2.readFrom(buf2);
assertEquals(tip, act2);
}
Example 9
| Source File: ChannelBuffers.java From simple-netty-source with Apache License 2.0 | 5 votes |
|
/**
* Creates a new buffer whose content is a copy of the specified
* {@code buffer}'s readable bytes. The new buffer's {@code readerIndex}
* and {@code writerIndex} are {@code 0} and {@code buffer.readableBytes}
* respectively.
*/
public static ChannelBuffer copiedBuffer(ChannelBuffer buffer) {
if (buffer.readable()) {
return buffer.copy();
} else {
return EMPTY_BUFFER;
}
}
Example 10
| Source File: BgpEvpnNlriImpl.java From onos with Apache License 2.0 | 5 votes |
|
/**
* Reads from channelBuffer and parses Evpn Nlri.
*
* @param cb ChannelBuffer
* @return object of BgpEvpnNlriVer4
* @throws BgpParseException while parsing Bgp Evpn Nlri
*/
public static BgpEvpnNlriImpl read(ChannelBuffer cb)
throws BgpParseException {
BgpEvpnNlriData routeNlri = null;
if (cb.readableBytes() > 0) {
ChannelBuffer tempBuf = cb.copy();
byte type = cb.readByte();
byte length = cb.readByte();
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 BgpEvpnRouteType2Nlri.TYPE:
routeNlri = BgpEvpnRouteType2Nlri.read(tempCb);
break;
default:
log.info("Discarding, EVPN route type {}", type);
throw new BgpParseException(BgpErrorType.UPDATE_MESSAGE_ERROR,
BgpErrorType.MISSING_WELLKNOWN_ATTRIBUTE, null);
// break;
}
return new BgpEvpnNlriImpl(type, routeNlri);
} else {
return new BgpEvpnNlriImpl();
}
}
Example 11
| Source File: OFActionNiciraTtlDecrementTest.java From floodlight_with_topoguard with Apache License 2.0 | 5 votes |
|
@Test
public void testAction() {
ChannelBuffer buf = ChannelBuffers.buffer(32);
OFActionNiciraTtlDecrement act = new OFActionNiciraTtlDecrement();
assertEquals(true, act instanceof OFActionNiciraVendor);
assertEquals(true, act instanceof OFActionVendor);
assertEquals(true, act instanceof OFAction);
act.writeTo(buf);
ChannelBuffer buf2 = buf.copy();
assertEquals(16, buf.readableBytes());
byte fromBuffer[] = new byte[16];
buf.readBytes(fromBuffer);
assertArrayEquals(expectedWireFormat, fromBuffer);
// Test parsing. TODO: we don't really have the proper parsing
// infrastructure....
OFActionNiciraVendor act2 = new OFActionNiciraTtlDecrement();
act2.readFrom(buf2);
assertEquals(act, act2);
assertNotSame(act, act2);
assertEquals(OFActionType.VENDOR, act2.getType());
assertEquals(16, act2.getLength());
assertEquals(OFActionNiciraVendor.NICIRA_VENDOR_ID, act2.getVendor());
assertEquals((short)18, act2.getSubtype());
}
Example 12
| Source File: NodeDescriptors.java From onos with Apache License 2.0 | 4 votes |
|
/**
* 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) {
boolean isNonPseudoNode = true;
if ((length == ISISPSEUDONODE_LEN) && (tempCb.getByte(ISISPSEUDONODE_LEN - 1) != 0)) {
isNonPseudoNode = false;
}
if (isNonPseudoNode) {
tlv = IsIsNonPseudonode.read(tempCb);
} else {
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);
}
Example 13
| Source File: BgpLinkLSIdentifier.java From onos with Apache License 2.0 | 4 votes |
|
/**
* 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, length);
count++;
log.debug("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;
}
Example 14
| Source File: MemcachedCommandDecoder.java From fqueue with Apache License 2.0 | 4 votes |
|
/**
* Process an inbound string from the pipeline's downstream, and depending
* on the state (waiting for data or processing commands), turn them into
* the correct type of command.
*
* @param channelHandlerContext
* @param messageEvent
* @throws Exception
*/
@Override
public void messageReceived(ChannelHandlerContext channelHandlerContext, MessageEvent messageEvent)
throws Exception {
ChannelBuffer in = (ChannelBuffer) messageEvent.getMessage();
try {
// Because of the frame handler, we are assured that we are
// receiving only complete lines or payloads.
// Verify that we are in 'processing()' mode
if (status.state == SessionStatus.State.PROCESSING) {
// split into pieces
List<String> pieces = new ArrayList<String>(6);
int pos = in.bytesBefore(space);
do {
if (pos != -1) {
pieces.add(in.toString(in.readerIndex(), pos, USASCII));
in.skipBytes(pos + 1);
}
} while ((pos = in.bytesBefore(space)) != -1);
pieces.add(in.toString(USASCII));
processLine(pieces, messageEvent.getChannel(), channelHandlerContext);
} else if (status.state == SessionStatus.State.PROCESSING_MULTILINE) {
ChannelBuffer slice = in.copy();
byte[] payload = slice.array();
in.skipBytes(in.readableBytes());
continueSet(messageEvent.getChannel(), status, payload, channelHandlerContext);
} else {
throw new InvalidProtocolStateException("invalid protocol state");
}
} finally {
// Now indicate that we need more for this command by changing the
// session status's state.
// This instructs the frame decoder to start collecting data for us.
// Note, we don't do this if we're waiting for data.
if (status.state != SessionStatus.State.WAITING_FOR_DATA)
status.ready();
}
}
Example 15
| Source File: BgpPrefixLSIdentifier.java From onos with Apache License 2.0 | 4 votes |
|
/**
* 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, length);
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;
}
Example 16
| Source File: As4Path.java From onos with Apache License 2.0 | 4 votes |
|
/**
* 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);
}
Example 17
| Source File: BgpExtendedCommunity.java From onos with Apache License 2.0 | 4 votes |
|
/**
* Reads from the channel buffer and parses extended community.
*
* @param cb ChannelBuffer
* @return object of BgpExtendedCommunity
* @throws BgpParseException while parsing extended community
*/
public static BgpExtendedCommunity read(ChannelBuffer cb) throws BgpParseException {
ChannelBuffer tempCb = cb.copy();
Validation validation = Validation.parseAttributeHeader(cb);
List<BgpValueType> fsActionTlvs = new LinkedList<>();
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());
if (tempBuf.readableBytes() > 0) {
BgpValueType fsActionTlv = null;
ChannelBuffer actionBuf = tempBuf.readBytes(validation.getLength());
while (actionBuf.readableBytes() > 0) {
short actionType = actionBuf.readShort();
switch (actionType) {
case Constants.BGP_ROUTE_TARGET_AS:
case Constants.BGP_ROUTE_TARGET_IP:
case Constants.BGP_ROUTE_TARGET_LARGEAS:
fsActionTlv = RouteTarget.read(actionType, actionBuf);
break;
case Constants.BGP_FLOWSPEC_ACTION_TRAFFIC_ACTION:
fsActionTlv = BgpFsActionTrafficAction.read(actionBuf);
break;
case Constants.BGP_FLOWSPEC_ACTION_TRAFFIC_MARKING:
fsActionTlv = BgpFsActionTrafficMarking.read(actionBuf);
break;
case Constants.BGP_FLOWSPEC_ACTION_TRAFFIC_RATE:
fsActionTlv = BgpFsActionTrafficRate.read(actionBuf);
break;
case Constants.BGP_FLOWSPEC_ACTION_TRAFFIC_REDIRECT:
fsActionTlv = BgpFsActionReDirect.read(actionBuf);
break;
default:
log.debug("Other type Not Supported:" + actionType);
break;
}
if (fsActionTlv != null) {
fsActionTlvs.add(fsActionTlv);
}
}
}
return new BgpExtendedCommunity(fsActionTlvs);
}
Example 18
| Source File: OFBsnPktinSupressionSetRequestVendorDataTest.java From floodlight_with_topoguard with Apache License 2.0 | 4 votes |
|
@Test
public void test() {
ChannelBuffer buf = ChannelBuffers.buffer(32);
OFBsnPktinSuppressionSetRequestVendorData vendorData =
new OFBsnPktinSuppressionSetRequestVendorData(
true,
(short)0x5a,
(short)0xf0e0,
(short)0x1234,
0x3333666677779999L);
assertEquals(11, vendorData.getDataType());
assertEquals(true, vendorData instanceof OFBigSwitchVendorData);
vendorData.writeTo(buf);
ChannelBuffer buf2 = buf.copy();
assertEquals(20, buf.readableBytes());
byte fromBuffer[] = new byte[20];
buf.readBytes(fromBuffer);
assertArrayEquals(expectedWireFormat, fromBuffer);
OFBsnPktinSuppressionSetRequestVendorData vendorData2 =
new OFBsnPktinSuppressionSetRequestVendorData();
assertEquals(11, vendorData2.getDataType());
vendorData2.setIdleTimeout((short)1);
assertEquals((short)1, vendorData2.getIdleTimeout());
vendorData2.setHardTimeout((short)2);
assertEquals((short)2, vendorData2.getHardTimeout());
vendorData2.setPriority((short)3);
assertEquals((short)3, vendorData2.getPriority());
vendorData2.setCookie(12345678901234L);
assertEquals(12345678901234L, vendorData2.getCookie());
vendorData2.readFrom(buf2, buf2.readableBytes());
assertEquals(vendorData, vendorData2);
}
Example 19
| Source File: AsPath.java From onos with Apache License 2.0 | 4 votes |
|
/**
* 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);
}
Example 20
| Source File: MemcachedCommandDecoder.java From fqueue with Apache License 2.0 | 4 votes |
|
/**
* Process an inbound string from the pipeline's downstream, and depending
* on the state (waiting for data or processing commands), turn them into
* the correct type of command.
*
* @param channelHandlerContext
* @param messageEvent
* @throws Exception
*/
@Override
public void messageReceived(ChannelHandlerContext channelHandlerContext, MessageEvent messageEvent)
throws Exception {
ChannelBuffer in = (ChannelBuffer) messageEvent.getMessage();
try {
// Because of the frame handler, we are assured that we are
// receiving only complete lines or payloads.
// Verify that we are in 'processing()' mode
if (status.state == SessionStatus.State.PROCESSING) {
// split into pieces
List<String> pieces = new ArrayList<String>(6);
int pos = in.bytesBefore(space);
do {
if (pos != -1) {
pieces.add(in.toString(in.readerIndex(), pos, USASCII));
in.skipBytes(pos + 1);
}
} while ((pos = in.bytesBefore(space)) != -1);
pieces.add(in.toString(USASCII));
processLine(pieces, messageEvent.getChannel(), channelHandlerContext);
} else if (status.state == SessionStatus.State.PROCESSING_MULTILINE) {
ChannelBuffer slice = in.copy();
byte[] payload = slice.array();
in.skipBytes(in.readableBytes());
continueSet(messageEvent.getChannel(), status, payload, channelHandlerContext);
} else {
throw new InvalidProtocolStateException("invalid protocol state");
}
} finally {
// Now indicate that we need more for this command by changing the
// session status's state.
// This instructs the frame decoder to start collecting data for us.
// Note, we don't do this if we're waiting for data.
if (status.state != SessionStatus.State.WAITING_FOR_DATA)
status.ready();
}
}
