[PATCH v2] net-next: Add tcindex to conntrack and add netfilter target/matches

This patch implements support for setting/matching the skb->tc_index field from Xtables, as well as allowing it to be saved/restored using connection tracking. This provides 16 extra bits of mark space that can be saved/restored from the connection (for performance benefits) when the marking is be

[PATCH v2] net-next: Add tcindex to conntrack and add netfilter target/matches

This patch implements support for setting/matching the skb->tc_index field from Xtables, as well as allowing it to be saved/restored using connection tracking. This provides 16 extra bits of mark space that can be saved/restored from the connection (for performance benefits) when the marking is be