Wireshark · Wireshark-dev: Re: [Wireshark-dev] Problems when changing a dissector preference

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

Stig Bjørlykke wrote:
> Hi.
>
> In the DMP dissector I build a hash_table with some SEQ/ACK analysis  
> values the first time the package is dissected (when pinfo->fd- 
>  >flags.visited==FALSE).  This hash_table is deleted in the dissectors  
> init routine.
>
> When changing the udp port in the dissectors preferences, from an  
> unknown port to the port used in the packages, the init routine for  
> the dissector is called and all packages are reloaded with pinfo->fd- 
>  >flags.visited=TRUE.  This will not create my hash_table as expected,  
> and the analysis values are not calculated.
>
> Any idea how I should fix this?

Free it (and recreate it) in a routine registered with 
register_init_routine() instead?