Fixup

The Fixup element is a child element of a Block, Number, Blob, or String. Fixups are typically used to apply pre-Transformer modifications to an element, such as compute a CRC.

<Block name="HelloWorld">
  <Number name="CRC" size="32" signed="true" endian="little">
     <Fixup class="checksums.Crc32Fixup">
        <Param name="ref" value="Data"/>
     </Fixup>
  </Number>
  <Blob name="Data"/>
</Block>

Attributes:

• class -- Name of fixup class to use

Valid Child-Elements:

• Param - name = 'ref'; value = '<name of referenced DataModel or Block>'.

Existing Fixups:

• checksums.Crc32Fixup

• checksums.Crc32DualFixup

• checksums.EthernetChecksumFixup

• checksums.ExpressionFixup

• checksums.IcmpChecksumFixup

• checksums.SHA224Fixup

• checksums.SHA256Fixup

• checksums.SHA384Fixup

• checksums.SHA512Fixup

• checksums.SHA1Fixup

• checksums.MD5Fixup

• checksums.SspiAuthenticationFixup

• checksums.LRCFixup

• sequence.SequenceIncrementFixup

• sequence.SequenceRandomFixup