[lwip-users] Re: [lwip] who/what frees pbufs on output

[Dirk Koopman]

I have just downloaded the latest CVS and I am even more confused. I
notice there are significant changes in the core - which version should
I be using?


 On Fri, 4 Oct 2002 11:49:54 +0100 (BST)
Kieran Mansley <address@hidden> wrote:

> On Fri, 4 Oct 2002, Dirk Koopman wrote:
> 
> > I remain somewhat confused as to where a pbuf that is output is
> > freed.
> >
> > Is it after the tcp/udp_send at application level, or is it in the
> > netif->output(....) routine?
> 
> tcp_output(), just after the call to ip_output()
> 
> > I ask this because ICMP echo seems to accept incoming pings,
> > massages the pbuf a bit to return it, then sends it back. The
> > problem is that, currently, I can't see where the pbuf used is
> > freed.
> 
> ICMP could well be bypassing the above, so you could have found a
> leak. I'm not sure how well tested ICMP is.
> 
> Kieran
> 
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