netdev - [PATCH 1/5] netfilter: nft_set_hash: skip fixed hash if timeout is specified

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Message-Id: <20180312161604.3060-2-pablo@netfilter.org>
Date:   Mon, 12 Mar 2018 17:16:00 +0100
From:   Pablo Neira Ayuso <pablo@...filter.org>
To:     netfilter-devel@...r.kernel.org
Cc:     davem@...emloft.net, netdev@...r.kernel.org
Subject: [PATCH 1/5] netfilter: nft_set_hash: skip fixed hash if timeout is specified

Fixed hash supports to timeouts, so skip it. Otherwise, userspace hits
EOPNOTSUPP.

Fixes: 6c03ae210ce3 ("netfilter: nft_set_hash: add non-resizable hashtable implementation")
Signed-off-by: Pablo Neira Ayuso <pablo@...filter.org>
---
 net/netfilter/nft_set_hash.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/netfilter/nft_set_hash.c b/net/netfilter/nft_set_hash.c
index 3f1624ee056f..d40591fe1b2f 100644
--- a/net/netfilter/nft_set_hash.c
+++ b/net/netfilter/nft_set_hash.c
@@ -674,7 +674,7 @@ static const struct nft_set_ops *
 nft_hash_select_ops(const struct nft_ctx *ctx, const struct nft_set_desc *desc,
 		    u32 flags)
 {
-	if (desc->size) {
+	if (desc->size && !(flags & NFT_SET_TIMEOUT)) {
 		switch (desc->klen) {
 		case 4:
 			return &nft_hash_fast_ops;
-- 
2.11.0