payload: move payload_gen_dependency generic part to helper

We should treat exthdr just as if user asked for e.g. ip6 saddr
and inject the needed dependency statement.

payload_gen_dependency cannot be used since the *expr needs
to be a payload expression, but the actual dependency generation
doesn't depend on a particular expression type.

In order to reuse this part for future exthdr dependency injection
move it to a helper.

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

0 files changed, 0 insertions, 0 deletions