I have a system with two netifs and I'm trying to forward packets
between the two interfaces. One netif is my Ethernet interface while the
other is a custom wireless interface. The problem is that the forwarded
pbuf is getting corrupted somehow before I can send it back out. At
first I thought the forwarded pbuf was getting free'd prematurely, but
an additional pbuf_ref does not fix the problem. I know the pbuf enters
my second netif correctly, but before I can get it sent out, its either
being free'd or modified somehow again. At the moment its working, but
its because I'm copying the forwarded pbuf before sending it back out.
I have gone over the code numerous times and traced the pbuf from the rx
of my ethernet interface, through the etharp code, through ip forward,
and into my second netif driver and I can't figure out where the problem
is. I'm currently running the latest code in the git repo (as of yesterday).
Does anybody have any clues as to where to look for the problem? My
guess is that its somewhere in the etharp code, but I can't find it.
Copying the entire pbuf is not exactly a good solution, though it
definitely works.
Thanks,
Tyrel
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