src: add support for flowtable counter

Allow users to enable flow counters via control plane toggle, e.g.

 table ip x {
	flowtable y {
		hook ingress priority 0;
		counter;
	}

	chain z {
		type filter hook ingress priority filter;
		flow add @z
	}
 }

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/rule.h b/include/rule.h
index 70c8c4cf..db11b1d6 100644
--- a/include/rule.h
+++ b/include/rule.h
@@ -491,6 +491,7 @@ struct flowtable {
 	const char		**dev_array;
 	struct expr		*dev_expr;
 	int			dev_array_len;
+	uint32_t		flags;
 	unsigned int		refcnt;
 };