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authorLaura Garcia Liebana <nevola@gmail.com>2016-09-05 10:55:03 +0200
committerPablo Neira Ayuso <pablo@netfilter.org>2016-09-12 20:30:52 +0200
commit5877cc62d9bd1c7183992a2d05dd82d17ed12097 (patch)
tree97ba14e4c844bc7287d2115074be776c6a46cbeb /include/linux
parent3e885741cdc3498300419540333d9da43faa08f4 (diff)
expr: hash: Add offset to hash value
Add support to pass through an offset to the hash value. With this feature, the sysadmin is able to generate a hash with a given started value. Example: meta mark set jhash ip saddr mod 2 seed 0xabcd offset 100 This option generates marks according to the source address from 100 to 101. Signed-off-by: Laura Garcia Liebana <nevola@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/netfilter/nf_tables.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/netfilter/nf_tables.h b/include/linux/netfilter/nf_tables.h
index dd8b746..e608054 100644
--- a/include/linux/netfilter/nf_tables.h
+++ b/include/linux/netfilter/nf_tables.h
@@ -731,6 +731,7 @@ enum nft_meta_keys {
* @NFTA_HASH_LEN: source data length (NLA_U32)
* @NFTA_HASH_MODULUS: modulus value (NLA_U32)
* @NFTA_HASH_SEED: seed value (NLA_U32)
+ * @NFTA_HASH_OFFSET: offset value to be added (NLA_U32)
*/
enum nft_hash_attributes {
NFTA_HASH_UNSPEC,
@@ -739,6 +740,7 @@ enum nft_hash_attributes {
NFTA_HASH_LEN,
NFTA_HASH_MODULUS,
NFTA_HASH_SEED,
+ NFTA_HASH_OFFSET,
__NFTA_HASH_MAX,
};
#define NFTA_HASH_MAX (__NFTA_HASH_MAX - 1)