tree ed0bb89d4e43f6eea804b4d1cbad01050dae3b30
parent f12d33f4d83c6837d176e1aef337914089c77957
author Florian Westphal <fw@strlen.de> 1455639848 +0100
committer Pablo Neira Ayuso <pablo@netfilter.org> 1456750559 +0100

netfilter: meta: add PRANDOM support

Can be used to randomly match packets e.g. for statistic traffic sampling.

See commit 3ad0040573b0c00f8848
("bpf: split state from prandom_u32() and consolidate {c, e}BPF prngs")
for more info why this doesn't use prandom_u32 directly.

Unlike bpf nft_meta can be built as a module, so add an EXPORT_SYMBOL
for prandom_seed_full_state too.

Cc: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>