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authorPatrick McHardy <kaber@trash.net>2013-10-10 11:06:41 +0200
committerPablo Neira Ayuso <pablo@netfilter.org>2013-10-14 17:16:10 +0200
commitc29b72e02573b8fe5e6cae5d192a6a4772e7bbd6 (patch)
treecd4d3e4f18568111c0cf754a2ffe28efefd8ca41 /include/net
parentcb7dbfd0390c9e244339f3270fe8649568241812 (diff)
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netfilter: nft_payload: add optimized payload implementation for small loads
Add an optimized payload expression implementation for small (up to 4 bytes) aligned data loads from the linear packet area. This patch also includes original Patrick McHardy's entitled (nf_tables: inline nft_payload_fast_eval() into main evaluation loop). Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'include/net')
-rw-r--r--include/net/netfilter/nf_tables_core.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/net/netfilter/nf_tables_core.h b/include/net/netfilter/nf_tables_core.h
index 3df6a9be3bdd..fe7b16206a4e 100644
--- a/include/net/netfilter/nf_tables_core.h
+++ b/include/net/netfilter/nf_tables_core.h
@@ -27,6 +27,15 @@ extern void nft_bitwise_module_exit(void);
extern int nft_byteorder_module_init(void);
extern void nft_byteorder_module_exit(void);
+struct nft_payload {
+ enum nft_payload_bases base:8;
+ u8 offset;
+ u8 len;
+ enum nft_registers dreg:8;
+};
+
+extern const struct nft_expr_ops nft_payload_fast_ops;
+
extern int nft_payload_module_init(void);
extern void nft_payload_module_exit(void);