Wireshark · Wireshark-dev: Re: [Wireshark-dev] wireshark assertion issue

[Guy Harris <guy@xxxxxxxxxxxx>]

On Nov 22, 2009, at 11:20 PM, Rach, Darshan wrote:

> Doing this way, I am getting a DISSECTOR BUG.
>
> ("idx >= 0" failed in proto_item_add_subtree())
>
> Kindly help what might have gone wrong?

You passed a negative number as the second argument to  
proto_item_add_subtree() - or something you called did, such as  
process_reassembled_data().

Those numbers are usually initialized in a call to  
proto_register_subtree_array(); you pass  
proto_register_subtree_array() a pointer to the first element of an  
array of pointers to variables to initialize, and the number of  
elements in the array.

The first two elements of your msg_frag_items structure are pointers  
to numbers that get passed to proto_item_add_subtree(); make sure  
pointers to them are also in the array you passed to  
proto_register_subtree_array().