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_bitwise.c | 18 ++++++++++++------ 1 file changed, 12 insertions(+), 6 deletions(-) (limited to 'net/netfilter/nft_bitwise.c') diff --git a/net/netfilter/nft_bitwise.c b/net/netfilter/nft_bitwise.c index 0f7501506367..4fb6ee2c1106 100644 --- a/net/netfilter/nft_bitwise.c +++ b/net/netfilter/nft_bitwise.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2008 Patrick McHardy + * Copyright (c) 2008-2009 Patrick McHardy * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -118,23 +118,29 @@ nla_put_failure: return -1; } -static struct nft_expr_ops nft_bitwise_ops __read_mostly = { - .name = "bitwise", +static struct nft_expr_type nft_bitwise_type; +static const struct nft_expr_ops nft_bitwise_ops = { + .type = &nft_bitwise_type, .size = NFT_EXPR_SIZE(sizeof(struct nft_bitwise)), - .owner = THIS_MODULE, .eval = nft_bitwise_eval, .init = nft_bitwise_init, .dump = nft_bitwise_dump, +}; + +static struct nft_expr_type nft_bitwise_type __read_mostly = { + .name = "bitwise", + .ops = &nft_bitwise_ops, .policy = nft_bitwise_policy, .maxattr = NFTA_BITWISE_MAX, + .owner = THIS_MODULE, }; int __init nft_bitwise_module_init(void) { - return nft_register_expr(&nft_bitwise_ops); + return nft_register_expr(&nft_bitwise_type); } void nft_bitwise_module_exit(void) { - nft_unregister_expr(&nft_bitwise_ops); + nft_unregister_expr(&nft_bitwise_type); } -- cgit v1.2.3