Package net.i2p.data.i2np
Class UnknownI2NPMessage
java.lang.Object
net.i2p.data.i2np.I2NPMessageImpl
net.i2p.data.i2np.FastI2NPMessageImpl
net.i2p.data.i2np.UnknownI2NPMessage
- All Implemented Interfaces:
I2NPMessage
This is similar to DataMessage or GarlicMessage but with a variable message type.
This is defined so routers can route messages they don't know about.
We don't extend those classes so that any code that does (instanceof foo)
won't return true for this type. Load tests use DataMessage, for example.
Also, those classes include an additional length field that we can't use here.
See InboundMessageDistributor.
There is no setData() method, the only way to create one of these is to
read it with readMessage() (i.e., it came from some other router)
As of 0.8.12 this class is working. It is used at the IBGW to reduce the processing
required. For zero-hop IB tunnels, the convert() method is used to reconstitute
a standard message class.
- Since:
- 0.7.12 but broken before 0.8.12
-
Nested Class Summary
Nested classes/interfaces inherited from class net.i2p.data.i2np.I2NPMessageImpl
I2NPMessageImpl.Builder
-
Field Summary
Fields inherited from class net.i2p.data.i2np.FastI2NPMessageImpl
_checksum, _hasChecksum
Fields inherited from class net.i2p.data.i2np.I2NPMessageImpl
_context, _expiration, _log, CHECKSUM_LENGTH, DEFAULT_EXPIRATION_MS, HEADER_LENGTH
Fields inherited from interface net.i2p.data.i2np.I2NPMessage
MAX_ID_VALUE, MAX_SIZE
-
Constructor Summary
-
Method Summary
Modifier and TypeMethodDescriptionprotected int
calculate the message body's length (not including the header and footerconvert()
Attempt to convert this message to a known message class.boolean
int
getType()
Note that this returns the "true" type, so that the IBGW can correctly make drop decisions.int
hashCode()
void
readMessage
(byte[] data, int offset, int dataSize, int type) Read the body into the data structures, after the initial type byte and the uniqueId / expiration, using the current class's format as defined by the I2NP specificationtoString()
protected int
writeMessageBody
(byte[] out, int curIndex) write the message body to the output array, starting at the given indexMethods inherited from class net.i2p.data.i2np.FastI2NPMessageImpl
readBytes, toByteArray, toByteArrayWithSavedChecksum
Methods inherited from class net.i2p.data.i2np.I2NPMessageImpl
createMessage, fromRawByteArray, fromRawByteArrayNTCP2, getMessageExpiration, getMessageSize, getRawMessageSize, getUniqueId, readBytes, readBytes, readMessage, registerBuilder, setMessageExpiration, setUniqueId, toByteArray, toByteArray, toRawByteArray, toRawByteArrayNTCP2, writeBytes
-
Constructor Details
-
UnknownI2NPMessage
- Parameters:
type
- 0-255
-
-
Method Details
-
readMessage
public void readMessage(byte[] data, int offset, int dataSize, int type) throws I2NPMessageException Description copied from interface:I2NPMessage
Read the body into the data structures, after the initial type byte and the uniqueId / expiration, using the current class's format as defined by the I2NP specification- Parameters:
data
- data to read fromoffset
- where to start in the data arraydataSize
- how long into the data to readtype
- I2NP message type- Throws:
IllegalStateException
- if data previously set, to protect saved checksumI2NPMessageException
- if the stream doesn't contain a valid message that this class can read.
-
calculateWrittenLength
protected int calculateWrittenLength()calculate the message body's length (not including the header and footer- Specified by:
calculateWrittenLength
in classI2NPMessageImpl
-
writeMessageBody
protected int writeMessageBody(byte[] out, int curIndex) write the message body to the output array, starting at the given index- Specified by:
writeMessageBody
in classI2NPMessageImpl
- Returns:
- the index into the array after the last byte written (NOT the length)
-
getType
public int getType()Note that this returns the "true" type, so that the IBGW can correctly make drop decisions.- Returns:
- 0-255
-
convert
Attempt to convert this message to a known message class. This does the delayed verification using the saved checksum. Used by TunnelGatewayZeroHop.- Throws:
I2NPMessageException
- if the conversion fails- Since:
- 0.8.12
-
hashCode
public int hashCode() -
equals
-
toString
-