#!/bin/bash

rnd=$(mktemp -u XXXXXXXX)
ns1="nft1ifname-$rnd"
ns2="nft2ifname-$rnd"

cleanup()
{
	ip netns del "$ns1"
	ip netns del "$ns2"
}

trap cleanup EXIT

set -e

ip netns add "$ns1"
ip netns add "$ns2"
ip -net "$ns1" link set lo up
ip -net "$ns2" link set lo up

ip link add veth0 netns $ns1 type veth peer name veth0 netns $ns2

ip -net "$ns1" link set veth0 addr da:d3:00:01:02:03

ip -net "$ns1" link add vlan123 link veth0 type vlan id 123 proto 802.1ad
ip -net "$ns2" link add vlan123 link veth0 type vlan id 123 proto 802.1ad


for dev in veth0 vlan123; do
	ip -net "$ns1" link set $dev up
	ip -net "$ns2" link set $dev up
done

ip -net "$ns1" addr add 10.1.1.1/24 dev vlan123
ip -net "$ns2" addr add 10.1.1.2/24 dev vlan123

ip netns exec "$ns2" $NFT -f /dev/stdin <<"EOF"
table netdev t {
	chain c {
		type filter hook ingress device veth0 priority filter;
		ether saddr da:d3:00:01:02:03 ether type 8021ad vlan id 123 ip daddr 10.1.1.2 icmp type echo-request counter
	}
}
EOF

ip netns exec "$ns1" ping -c 1 10.1.1.2

ip netns exec "$ns2" $NFT list ruleset
ip netns exec "$ns2" $NFT list chain netdev t c | grep 'counter packets 1 bytes 84'