iptables-translate -t mangle -A PREROUTING -m rpfilter
nft 'add rule ip mangle PREROUTING fib saddr . iif oif != 0 counter'

iptables-translate -t mangle -A PREROUTING -m rpfilter --validmark --loose
nft 'add rule ip mangle PREROUTING fib saddr . mark oif != 0 counter'

ip6tables-translate -t mangle -A PREROUTING -m rpfilter --validmark --invert
nft 'add rule ip6 mangle PREROUTING fib saddr . mark . iif oif 0 counter'