On Thu, Mar 02, 2017 at 05:00:14PM +0100, Laura Garcia Liebana wrote: > This patch provides symmetric hash support according to source > ip address and port, and destination ip address and port. > > For this purpose, the __skb_get_hash_symmetric() is used to > identify the flow as it uses FLOW_DISSECTOR_F_STOP_AT_FLOW_LABEL > flag by default. > > The new attribute NFTA_HASH_TYPE has been included to support > different types of hashing functions. Currently supported > NFT_HASH_JENKINS through jhash and NFT_HASH_SYM through symhash. > > The main difference between both types are: > - jhash requires an expression with sreg, symhash doesn't. > - symhash supports modulus and offset, but not seed. > > Examples: > > nft add rule ip nat prerouting ct mark set jhash ip saddr mod 2 > nft add rule ip nat prerouting ct mark set symhash mod 2 > > By default, jenkins hash will be used if no hash type is > provided for compatibility reasons. Also applied, thanks Laura. -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
