public final class AddressMaskRequest extends ICMPHeader
CODE_BAD_IP_HEADER, CODE_COMMUNICATIONS_ADMIN_PROHIBITIED, CODE_DESTINATION_HOST_ADMIN_PROHIBITED, CODE_DESTINATION_HOST_UNKNOWN, CODE_DESTINATION_NETWORK_ADMIN_PROHIBITED, CODE_DESTINATION_NETWORK_UNKNOWN, CODE_FRAGMENTATION_NEEDED, CODE_HOST_PRECEDENCE_VIOLATION, CODE_HOST_UNREACHABLE, CODE_HOST_UNREACHABLE_FOR_TOS, CODE_NETWORK_UNREACHABLE, CODE_NETWORK_UNREACHABLE_FOR_TOS, CODE_PORT_UNREACHABLE, CODE_PRECEDENCE_CUTOFF_IN_EFFECT, CODE_PROTOCOL_UNREACHABLE, CODE_REDIRECT_FOR_HOST, CODE_REDIRECT_FOR_NETWORK, CODE_REDIRECT_FOR_TYPE_OF_SERVICE_AND_HOST, CODE_REDIRECT_FOR_TYPE_OF_SERVICE_AND_NETWORK, CODE_REQUIRED_OPTION_MISSING, CODE_SOURCE_HOST_ISOLATED, CODE_SOURCE_ROUTE_FAILED, CODE_TTL_EQ_ZERO_IN_REASSEMBLY, CODE_TTL_EQ_ZERO_IN_TRANSIT, TYPE_ADDRESS_MASK_REPLY, TYPE_ADDRESS_MASK_REQUEST, TYPE_DESTINATION_UNREACHABLE, TYPE_ECHO_REPLY, TYPE_ECHO_REQUEST, TYPE_INFORMATION_REPLY, TYPE_INFORMATION_REQUEST, TYPE_PARAMETER_PROBLEM, TYPE_REDIRECT, TYPE_ROUTER_ADVERTISEMENT, TYPE_ROUTER_SOLICITATION, TYPE_SOURCE_QUENCH, TYPE_TIME_EXCEEDED, TYPE_TIMESTAMP_REPLY, TYPE_TIMESTAMP_REQUEST
Constructor and Description |
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AddressMaskRequest()
Creates a new ICMP Address Mask Request object.
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AddressMaskRequest(byte[] buf,
int offset)
Creates a new ICMP Address mask request from the spcified data at the
specific offset.
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Modifier and Type | Method and Description |
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void |
computeChecksum()
Computes the ones compliment 16-bit checksum for the ICMP message.
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int |
loadFromBuffer(byte[] buf,
int offset)
Reads the ICMP Address Mask Reqeust from the specified buffer and sets
the internal fields equal to the data.
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int |
storeToBuffer(byte[] buf,
int offset)
Writes the ICMP address mask request out to the specified buffer at the
starting offset.
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byte[] |
toBytes()
Converts the object to an array of bytes
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byteToInt, byteToShort, computeChecksum, getChecksum, getCode, getHeaderSize, getIdentity, getNetworkSize, getSequenceId, getType, isEchoReply, isEchoRequest, nextSequenceId, setChecksum, setCode, setIdentity, setNextSequenceId, setSequenceId, setType
public AddressMaskRequest()
public AddressMaskRequest(byte[] buf, int offset)
buf
- The buffer containing the data.offset
- The start of the icmp data.IndexOutOfBoundsException
- Thrown if there is not sufficent data in the buffer.IllegalArgumentException
- Thrown if the ICMP type is not an Address Mask Request.public final void computeChecksum()
computeChecksum
in class ICMPHeader
public final int storeToBuffer(byte[] buf, int offset)
storeToBuffer
in class ICMPHeader
buf
- The storage buffer.offset
- The location to start in buf.IndexOutOfBoundsException
- Thrown if the buffer does not have enough storage space.public final int loadFromBuffer(byte[] buf, int offset)
loadFromBuffer
in class ICMPHeader
buf
- The buffer to read the data from.offset
- The offset to start reading data.IndexOutOfBoundsException
- Thrown if there is not sufficent data in the buffer.IllegalArgumentException
- Thrown if the ICMP type is not an Address Mask Request.public final byte[] toBytes()
toBytes
in class ICMPHeader
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