From ef1f7df9170dbd875ce198ba84e6ab80f6fc139e Mon Sep 17 00:00:00 2001 From: Patrick McHardy Date: Thu, 10 Oct 2013 11:41:20 +0200 Subject: netfilter: nf_tables: expression ops overloading Split the expression ops into two parts and support overloading of the runtime expression ops based on the requested function through a ->select_ops() callback. This can be used to provide optimized implementations, for instance for loading small aligned amounts of data from the packet or inlining frequently used operations into the main evaluation loop. Signed-off-by: Patrick McHardy Signed-off-by: Pablo Neira Ayuso --- net/netfilter/nft_exthdr.c | 16 +++++++++++----- 1 file changed, 11 insertions(+), 5 deletions(-) (limited to 'net/netfilter/nft_exthdr.c') diff --git a/net/netfilter/nft_exthdr.c b/net/netfilter/nft_exthdr.c index 21c6a6b7b662..8e0bb75e7c51 100644 --- a/net/netfilter/nft_exthdr.c +++ b/net/netfilter/nft_exthdr.c @@ -98,25 +98,31 @@ nla_put_failure: return -1; } -static struct nft_expr_ops exthdr_ops __read_mostly = { - .name = "exthdr", +static struct nft_expr_type nft_exthdr_type; +static const struct nft_expr_ops nft_exthdr_ops = { + .type = &nft_exthdr_type, .size = NFT_EXPR_SIZE(sizeof(struct nft_exthdr)), - .owner = THIS_MODULE, .eval = nft_exthdr_eval, .init = nft_exthdr_init, .dump = nft_exthdr_dump, +}; + +static struct nft_expr_type nft_exthdr_type __read_mostly = { + .name = "exthdr", + .ops = &nft_exthdr_ops, .policy = nft_exthdr_policy, .maxattr = NFTA_EXTHDR_MAX, + .owner = THIS_MODULE, }; static int __init nft_exthdr_module_init(void) { - return nft_register_expr(&exthdr_ops); + return nft_register_expr(&nft_exthdr_type); } static void __exit nft_exthdr_module_exit(void) { - nft_unregister_expr(&exthdr_ops); + nft_unregister_expr(&nft_exthdr_type); } module_init(nft_exthdr_module_init); -- cgit