How to release dynamically allocated channel callback data?

[Joerg Pommnitz]

Hello all,because I need per channel userdata I have to use a dynamically 
allocated channel callback structure. Unfortunately there sems to be no way to 
access these data from a channel. Am I right or is there a way? If not, how can 
I release the dynamically allocated callback data before a ssh_channel_free? Do 
I have to track these separately (would be a real pain)?
 -- 
Regards
 Joerg