Wireshark · Wireshark-dev: Re: [Wireshark-dev] Plugin module dissctor fails assertion

[Jeff Morriss <jeff.morriss.ws@xxxxxxxxx>]

Johannes Bauer wrote:
> Hello list,
>
> I'm currently trying to write a wireshark disector that slices up a
> specific custom USB device. Now I've read the (BTW absolutely
> marvellous!) documentation about how writing plugins and I can get
> disectors to work which do basic stuff (like recognize IP packets or
> such). But since I want to disect USB (which appearently is also coded
> in a module), when I call:
>
> dissector_add("usb.data_flag", 0x1, sbig_handle);
>
> Wireshark cries out in pain:
>
> ERROR:packet.c:697:dissector_add: assertion failed: (sub_dissectors)

The problem, I think, is that "usb.data_flag" is not a registered 
subdissector table.  packet-usb.c only registers 2 dissector tables:

>     usb_bulk_dissector_table = register_dissector_table("usb.bulk",    
>         "USB bulk endpoint", FT_UINT8, BASE_DEC);
>                      
>     usb_control_dissector_table = register_dissector_table("usb.control",
>         "USB control endpoint", FT_UINT8, BASE_DEC);