Hi ,
I am a little confused about connection tracking . I would like
to clarify those with your valuable inputs . If you can find some time
, i will be grateful .
1. Each connection tacking module ( example - nf_conntrack_ftp
) will keep its own independent tuple hash tables ??
2. Suppose i have nf_conntrack_ftp , nf_conntrack_proto_tcp
modules loaded . If i initiate a data transfer using ftp protocol ,
which connection tracking module will have tuple information .?
{ My question is :- > if i dont have nf_conntrack_proto_ftp
loaded , it will be tracked by nf_conntrack_proto_tcp }
3. for the question 2 , which will be skb->nfct contains ?
4. what exactly helper routines does ? is it only find out
related connection .or any other functionality ?
5. nf_conntrack_proto_tcp also has helper routines ?
Thanks,
Ratheesh
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