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authorPatrick McHardy2015-04-11 02:27:39 +0100
committerPablo Neira Ayuso2015-04-13 17:17:31 +0200
commit7d7402642eaf385aef0772eff5a35e34fc4995d7 (patch)
tree340e51ce8070314a423634a21a3dc31fe3e6b0c9 /include/net
parentd0a11fc3dc4ab4c717642c9c15c8ad1cbc00d2ec (diff)
netfilter: nf_tables: variable sized set element keys / data
This patch changes sets to support variable sized set element keys / data up to 64 bytes each by using variable sized set extensions. This allows to use concatenations with bigger data items suchs as IPv6 addresses. As a side effect, small keys/data now don't require the full 16 bytes of struct nft_data anymore but just the space they need. 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.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h
index 160577bf0f0a..cb42da1011ef 100644
--- a/include/net/netfilter/nf_tables.h
+++ b/include/net/netfilter/nf_tables.h
@@ -158,7 +158,10 @@ struct nft_userdata {
* @priv: element private data and extensions
*/
struct nft_set_elem {
- struct nft_data key;
+ union {
+ u32 buf[NFT_DATA_VALUE_MAXLEN / sizeof(u32)];
+ struct nft_data val;
+ } key;
void *priv;
};