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authorPatrick McHardy <kaber@trash.net>2013-10-10 11:41:20 +0200
committerPablo Neira Ayuso <pablo@netfilter.org>2013-10-14 17:16:08 +0200
commitef1f7df9170dbd875ce198ba84e6ab80f6fc139e (patch)
treeac15a3cbf8c4a05b8b1919cf195189e00c3a2956 /net/netfilter/nft_lookup.c
parentnetfilter: nf_tables: add netlink set API (diff)
downloadlinux-dev-ef1f7df9170dbd875ce198ba84e6ab80f6fc139e.tar.xz
linux-dev-ef1f7df9170dbd875ce198ba84e6ab80f6fc139e.zip
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 <kaber@trash.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/netfilter/nft_lookup.c')
-rw-r--r--net/netfilter/nft_lookup.c16
1 files changed, 11 insertions, 5 deletions
diff --git a/net/netfilter/nft_lookup.c b/net/netfilter/nft_lookup.c
index 4962d2173678..8a6116b75b5a 100644
--- a/net/netfilter/nft_lookup.c
+++ b/net/netfilter/nft_lookup.c
@@ -112,24 +112,30 @@ nla_put_failure:
return -1;
}
-static struct nft_expr_ops nft_lookup_ops __read_mostly = {
- .name = "lookup",
+static struct nft_expr_type nft_lookup_type;
+static const struct nft_expr_ops nft_lookup_ops = {
+ .type = &nft_lookup_type,
.size = NFT_EXPR_SIZE(sizeof(struct nft_lookup)),
- .owner = THIS_MODULE,
.eval = nft_lookup_eval,
.init = nft_lookup_init,
.destroy = nft_lookup_destroy,
.dump = nft_lookup_dump,
+};
+
+static struct nft_expr_type nft_lookup_type __read_mostly = {
+ .name = "lookup",
+ .ops = &nft_lookup_ops,
.policy = nft_lookup_policy,
.maxattr = NFTA_LOOKUP_MAX,
+ .owner = THIS_MODULE,
};
int __init nft_lookup_module_init(void)
{
- return nft_register_expr(&nft_lookup_ops);
+ return nft_register_expr(&nft_lookup_type);
}
void nft_lookup_module_exit(void)
{
- nft_unregister_expr(&nft_lookup_ops);
+ nft_unregister_expr(&nft_lookup_type);
}