handling the termination of 'expected' connection

[iler_ml@fastmail.fm]

Hello,

I am making the conntrack module similar to ip_conntrack_ftp.c, 
but additionally I need to track the termination (or expiry) of
the 'expected' connection.  Thus I need a callback from 
'ip_conntrack_core.c' when the 'expected' connection is terminated 
or expired. I think I need to patch 'ip_conntrack_core.c' for that ? 

Which points in 'ip_conntrack_core.c' are the right points to hook
for such event ? 

I though I would patch 'ip_conntrack_core.c' to call my callback when
struct ip_conntrack_core.c is deallocated. Does this sound right ?

Yakov Lerner
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  iler_ml@fastmail.fm

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