Re: How to create a "persistent" expectation with newnat?

[netfilter@interlinx.bc.ca]

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On Wed, Feb 26, 2003 at 10:15:45PM +0100, Harald Welte wrote:
> 
> This was not what I was thinking about. You would try to put the same
> struct onto the list again.

Right.  I was assuming that was the point of the "use" reference
counter.  To be able to re-use objects.

> Bad things will happen.  You will need to
> allocate a new struct ip_conntrack_expect, initialize it with tuple/mask
> and then call expect_related on this newly-allocated struct.

OK.  Should be simple enough with a few memcpys.  I don't suppose
there is a "copy_ip_conntrack_expect()" courtesy function is there?

> I did mean 'the same expectation' on a logical level, not 'the same
> piece of memory representing the expectation'.

OK.  I will go correct that in my helper then.

> I've tried to describe this in documentation/newnat-summary.txt.

I looked at that, and maybe with the context I have now it will be
clearer, but it was not that clear on my first reading (obviously, or
I would have gotten this all right the first time :-).

Thanx much for the steering in the right direction Harald.

You know, writing helpers for various protocols would not be a bad
gig... for a while I guess... everything gets boring after a while I
suppose.  :-) 
b.

-- 
Brian J. Murrell

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