net.i2p.data.i2np
Class UnknownI2NPMessage
java.lang.Object
net.i2p.data.DataStructureImpl
net.i2p.data.i2np.I2NPMessageImpl
net.i2p.data.i2np.FastI2NPMessageImpl
net.i2p.data.i2np.UnknownI2NPMessage
- All Implemented Interfaces:
- Serializable, DataStructure, I2NPMessage
public class UnknownI2NPMessage
- extends FastI2NPMessageImpl
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
- See Also:
- Serialized Form
Method Summary |
protected int |
calculateWrittenLength()
calculate the message body's length (not including the header and footer |
I2NPMessage |
convert()
Attempt to convert this message to a known message class. |
boolean |
equals(Object object)
|
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 specification |
String |
toString()
|
protected int |
writeMessageBody(byte[] out,
int curIndex)
write the message body to the output array, starting at the given index |
Methods inherited from class net.i2p.data.i2np.I2NPMessageImpl |
createMessage, fromRawByteArray, getMessageExpiration, getMessageSize, getRawMessageSize, getUniqueId, readBytes, readMessage, registerBuilder, setMessageExpiration, setUniqueId, toByteArray, toRawByteArray |
UnknownI2NPMessage
public UnknownI2NPMessage(I2PAppContext context,
int type)
- Parameters:
type
- 0-255
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 checksum
I2NPMessageException
- 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 class I2NPMessageImpl
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 class I2NPMessageImpl
- Returns:
- the index into the array after the last byte written
getType
public int getType()
- Note that this returns the "true" type, so that
the IBGW can correctly make drop decisions.
- Returns:
- 0-255
convert
public I2NPMessage convert()
throws I2NPMessageException
- 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()
- Overrides:
hashCode
in class Object
equals
public boolean equals(Object object)
- Overrides:
equals
in class Object
toString
public String toString()
- Overrides:
toString
in class Object