Kevin A. Noll wrote: > I am progressing on my updated WLCCP dissector, but I've run into another > (amateur) issue. This protocol allows TLVs to be tacked on to the end of a > packet with no indication of how many or how long they are until you start > reading the TLVs and iterate through them until you get to the end of the > tvbuff. > > I am successfully (sort of) doing this iteration and decoding all of the TLV > fields, but on every one, the last field (the one that runs to the end of > the tvbuff) is not added to the proto_tree (even though I have the > appropriate proto_tree_add). Instead I am getting an exception that says > "Dissector bug... failed assertion DISSECTOR_ASSERT_NOT_REACHED". > > I've looked at the definitions for the DISSECTOR_ASSERTs in proto.h and > can't quite figure out what this means. I've set the > WIRESHARK_ABORT_ON_DISSECTOR_BUG environment variable, but no stack trace is > printed when it aborts.
ABORT_ON_DISSECTOR_BUG won't generate a stack trace but it should generate a core file (from which you can get a backtrace). What platform are you on? If Unix (especially Linux), check your your core 'ulimit' (do: "ulimit -c unlimited"). A lot of Linux distros disable core files by default these days. :-( If I had to make a wild guess (based on experience?), I'd say that there might be something wrong with the registration of that last hf_ entry you're adding. _______________________________________________ Wireshark-dev mailing list [email protected] http://www.wireshark.org/mailman/listinfo/wireshark-dev
