tree 46d2704f24f8f975edc25da2b18797926afe6af1
parent 914eebf2f434c6c0355faa9d81b4ebdca94819c9
author Florian Westphal <fw@strlen.de> 1444389037 +0200
committer Pablo Neira Ayuso <pablo@netfilter.org> 1444730604 +0200

netfilter: nfqueue: don't use prev pointer

Usage of -prev seems buggy.  While packet was out our hook cannot be
removed but we have no way to know if the previous one is still valid.

So better not use ->prev at all.  Since NF_REPEAT just asks to invoke
same hook function again, just do so, and continue with nf_interate
if we get an ACCEPT verdict.

A side effect of this change is that if nf_reinject(NF_REPEAT) causes
another REPEAT we will now drop the skb instead of a kernel loop.

However, NF_REPEAT loops would be a bug so this should not happen anyway.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>