Commit 3f8b61b7 authored Jul 05, 2016 by Liping Zhang Committed by Pablo Neira Ayuso Jul 11, 2016

netfilter: nft_ct: make byte/packet expr more friendly



If we want to use ct packets expr, and add a rule like follows:
  # nft add rule filter input ct packets gt 1 counter

We will find that no packets will hit it, because
nf_conntrack_acct is disabled by default. So It will
not work until we enable it manually via
"echo 1 > /proc/sys/net/netfilter/nf_conntrack_acct".

This is not friendly, so like xt_connbytes do, if the user
want to use ct byte/packet expr, enable nf_conntrack_acct
automatically.

Signed-off-by: Liping Zhang <liping.zhang@spreadtrum.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

parent 47c74456

net/netfilter/nft_ct.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -355,6 +355,9 @@ static int nft_ct_get_init(const struct nft_ctx *ctx,
		if (err < 0)
		return err;

		if (priv->key == NFT_CT_BYTES \|\| priv->key == NFT_CT_PKTS)
		nf_ct_set_acct(ctx->net, true);

		return 0;
		}