From: "Hannes Gredler"
> | There is no general framework to allow an arbitrary dissector to get > | arbitrary information from arbitrary lower-level dissectors. > > bummer - i stumbled in the IS-IS dissector about this as well; > for example in IS-IS there is a checksum TLV (12); > however in order to verify the checksum > it needs to parse the entire packet, which would mean accessing data > from a higher level; How horrible. Why on earth would one develop a protocol which has dependencies into lower layer protocols. Its bad enough that TCP and UDP do this, but that was a long time ago and people didnt know better then, but today... Do ethereal really need to verify that this checksum is correct?
