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#!/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'
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