From d8297d4f3ebd7a47f443ab66276bb774749612ba Mon Sep 17 00:00:00 2001 From: Florian Westphal Date: Wed, 14 Jun 2017 11:51:29 +0200 Subject: netfilter: nf_tables: reduce chain type table size text data bss dec hex filename old: 151590 2240 1152 154982 25d66 net/netfilter/nf_tables_api.o new: 151666 2240 416 154322 25ad2 net/netfilter/nf_tables_api.o Signed-off-by: Florian Westphal Signed-off-by: Pablo Neira Ayuso --- net/netfilter/nf_tables_api.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (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 bc8f03a53734..5f3339978f6b 100644 --- a/net/netfilter/nf_tables_api.c +++ b/net/netfilter/nf_tables_api.c @@ -387,7 +387,7 @@ static inline u64 nf_tables_alloc_handle(struct nft_table *table) return ++table->hgenerator; } -static const struct nf_chain_type *chain_type[AF_MAX][NFT_CHAIN_T_MAX]; +static const struct nf_chain_type *chain_type[NFPROTO_NUMPROTO][NFT_CHAIN_T_MAX]; static const struct nf_chain_type * __nf_tables_chain_type_lookup(int family, const struct nlattr *nla) @@ -870,6 +870,9 @@ int nft_register_chain_type(const struct nf_chain_type *ctype) { int err = 0; + if (WARN_ON(ctype->family >= NFPROTO_NUMPROTO)) + return -EINVAL; + nfnl_lock(NFNL_SUBSYS_NFTABLES); if (chain_type[ctype->family][ctype->type] != NULL) { err = -EBUSY; -- cgit v1.2.3-55-g7522