Wireshark-commits: [Wireshark-commits] rev 30682: /trunk/epan/dissectors/ /trunk/epan/dissectors/:

Date: Sat, 24 Oct 2009 11:19:32 GMT
http://anonsvn.wireshark.org/viewvc/viewvc.cgi?view=rev&revision=30682

User: jake
Date: 2009/10/24 04:19 AM

Log:
 From Mithun Roy:
 The primary header in bundle protocol contains some offset values(destination
 scheme offset, destination ssp offset, source scheme offset, source ssp offset,
 etc). These are the offsets within the dictionary if the length of the
 dictionary length is greater than 0. But if the dictionary length is 0, then
 these offset refer to node number and service number respectively(according to
 compressed bundle header encoding). For example if destination scheme offset is
 2 and the destination ssp offset is 1, then the destination
 EID(<node_number>.<service_number>) is 2.1. 
 
 Currently the dtn dissector will consider these offsets to be actual offsets in
 the dictionary even if the dictionary length is 0. So the values for the
 EID's(destination, source, report, custodian) and their schemes are junk
 values. For example if the destination scheme offset is 2 and the destination
 ssp offset is 1 and the dictionary length is 0(which means the dictionary is
 empty), then the destination scheme is 2 bytes after the beginning of the
 metadata block(field after dictionary) and destination is 1 byte after the
 beginning of the metadata block.

Directory: /trunk/epan/dissectors/
  Changes    Path            Action
  +334 -103  packet-dtn.c    Modified
  +2 -0      packet-dtn.h    Modified