From 7c6c6e95a12e46f499749bdd496e53d03950f377 Mon Sep 17 00:00:00 2001 From: Patrick McHardy Date: Sat, 11 Apr 2015 10:46:41 +0100 Subject: netfilter: nf_tables: add flag to indicate set contains expressions Add a set flag to indicate that the set is used as a state table and contains expressions for evaluation. This operation is mutually exclusive with the mapping operation, so sets specifying both are rejected. The lookup expression also rejects binding to state tables since it only deals with loopup and map operations. Signed-off-by: Patrick McHardy Signed-off-by: Pablo Neira Ayuso --- net/netfilter/nf_tables_api.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'net/netfilter/nf_tables_api.c') diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c index 8830811550ec..78af83bc9c8e 100644 --- a/net/netfilter/nf_tables_api.c +++ b/net/netfilter/nf_tables_api.c @@ -2661,9 +2661,13 @@ static int nf_tables_newset(struct sock *nlsk, struct sk_buff *skb, if (nla[NFTA_SET_FLAGS] != NULL) { flags = ntohl(nla_get_be32(nla[NFTA_SET_FLAGS])); if (flags & ~(NFT_SET_ANONYMOUS | NFT_SET_CONSTANT | - NFT_SET_INTERVAL | NFT_SET_MAP | - NFT_SET_TIMEOUT)) + NFT_SET_INTERVAL | NFT_SET_TIMEOUT | + NFT_SET_MAP | NFT_SET_EVAL)) return -EINVAL; + /* Only one of both operations is supported */ + if ((flags & (NFT_SET_MAP | NFT_SET_EVAL)) == + (NFT_SET_MAP | NFT_SET_EVAL)) + return -EOPNOTSUPP; } dtype = 0; -- cgit v1.2.3-55-g7522