Eric Lee / smarc-fsl-linux-kernel

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samples/bpf/test_tunnel_bpf.sh 4.99 KB
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  #!/bin/bash
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  # SPDX-License-Identifier: GPL-2.0
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  # In Namespace 0 (at_ns0) using native tunnel
  # Overlay IP: 10.1.1.100
  # local 192.16.1.100 remote 192.16.1.200
  # veth0 IP: 172.16.1.100, tunnel dev <type>00
  
  # Out of Namespace using BPF set/get on lwtunnel
  # Overlay IP: 10.1.1.200
  # local 172.16.1.200 remote 172.16.1.100
  # veth1 IP: 172.16.1.200, tunnel dev <type>11
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  function config_device {
  	ip netns add at_ns0
  	ip link add veth0 type veth peer name veth1
  	ip link set veth0 netns at_ns0
  	ip netns exec at_ns0 ip addr add 172.16.1.100/24 dev veth0
  	ip netns exec at_ns0 ip link set dev veth0 up
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  	ip link set dev veth1 up mtu 1500
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  	ip addr add dev veth1 172.16.1.200/24
  }
  
  function add_gre_tunnel {
  	# in namespace
  	ip netns exec at_ns0 \
  		ip link add dev $DEV_NS type $TYPE key 2 local 172.16.1.100 remote 172.16.1.200
  	ip netns exec at_ns0 ip link set dev $DEV_NS up
  	ip netns exec at_ns0 ip addr add dev $DEV_NS 10.1.1.100/24
  
  	# out of namespace
  	ip link add dev $DEV type $TYPE key 2 external
  	ip link set dev $DEV up
  	ip addr add dev $DEV 10.1.1.200/24
  }
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  function add_erspan_tunnel {
  	# in namespace
  	ip netns exec at_ns0 \
  		ip link add dev $DEV_NS type $TYPE seq key 2 local 172.16.1.100 remote 172.16.1.200 erspan 123
  	ip netns exec at_ns0 ip link set dev $DEV_NS up
  	ip netns exec at_ns0 ip addr add dev $DEV_NS 10.1.1.100/24
  
  	# out of namespace
  	ip link add dev $DEV type $TYPE external
  	ip link set dev $DEV up
  	ip addr add dev $DEV 10.1.1.200/24
  }
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  function add_vxlan_tunnel {
  	# Set static ARP entry here because iptables set-mark works
  	# on L3 packet, as a result not applying to ARP packets,
  	# causing errors at get_tunnel_{key/opt}.
  
  	# in namespace
  	ip netns exec at_ns0 \
  		ip link add dev $DEV_NS type $TYPE id 2 dstport 4789 gbp remote 172.16.1.200
  	ip netns exec at_ns0 ip link set dev $DEV_NS address 52:54:00:d9:01:00 up
  	ip netns exec at_ns0 ip addr add dev $DEV_NS 10.1.1.100/24
  	ip netns exec at_ns0 arp -s 10.1.1.200 52:54:00:d9:02:00
  	ip netns exec at_ns0 iptables -A OUTPUT -j MARK --set-mark 0x800FF
  
  	# out of namespace
  	ip link add dev $DEV type $TYPE external gbp dstport 4789
  	ip link set dev $DEV address 52:54:00:d9:02:00 up
  	ip addr add dev $DEV 10.1.1.200/24
  	arp -s 10.1.1.100 52:54:00:d9:01:00
  }
  
  function add_geneve_tunnel {
  	# in namespace
  	ip netns exec at_ns0 \
  		ip link add dev $DEV_NS type $TYPE id 2 dstport 6081 remote 172.16.1.200
  	ip netns exec at_ns0 ip link set dev $DEV_NS up
  	ip netns exec at_ns0 ip addr add dev $DEV_NS 10.1.1.100/24
  
  	# out of namespace
  	ip link add dev $DEV type $TYPE dstport 6081 external
  	ip link set dev $DEV up
  	ip addr add dev $DEV 10.1.1.200/24
  }
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  function add_ipip_tunnel {
  	# in namespace
  	ip netns exec at_ns0 \
  		ip link add dev $DEV_NS type $TYPE local 172.16.1.100 remote 172.16.1.200
  	ip netns exec at_ns0 ip link set dev $DEV_NS up
  	ip netns exec at_ns0 ip addr add dev $DEV_NS 10.1.1.100/24
  
  	# out of namespace
  	ip link add dev $DEV type $TYPE external
  	ip link set dev $DEV up
  	ip addr add dev $DEV 10.1.1.200/24
  }
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  function attach_bpf {
  	DEV=$1
  	SET_TUNNEL=$2
  	GET_TUNNEL=$3
  	tc qdisc add dev $DEV clsact
  	tc filter add dev $DEV egress bpf da obj tcbpf2_kern.o sec $SET_TUNNEL
  	tc filter add dev $DEV ingress bpf da obj tcbpf2_kern.o sec $GET_TUNNEL
  }
  
  function test_gre {
  	TYPE=gretap
  	DEV_NS=gretap00
  	DEV=gretap11
  	config_device
  	add_gre_tunnel
  	attach_bpf $DEV gre_set_tunnel gre_get_tunnel
  	ping -c 1 10.1.1.100
  	ip netns exec at_ns0 ping -c 1 10.1.1.200
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  	cleanup
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  }
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  function test_erspan {
  	TYPE=erspan
  	DEV_NS=erspan00
  	DEV=erspan11
  	config_device
  	add_erspan_tunnel
  	attach_bpf $DEV erspan_set_tunnel erspan_get_tunnel
  	ping -c 1 10.1.1.100
  	ip netns exec at_ns0 ping -c 1 10.1.1.200
  	cleanup
  }
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  function test_vxlan {
  	TYPE=vxlan
  	DEV_NS=vxlan00
  	DEV=vxlan11
  	config_device
  	add_vxlan_tunnel
  	attach_bpf $DEV vxlan_set_tunnel vxlan_get_tunnel
  	ping -c 1 10.1.1.100
  	ip netns exec at_ns0 ping -c 1 10.1.1.200
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  	cleanup
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  }
  
  function test_geneve {
  	TYPE=geneve
  	DEV_NS=geneve00
  	DEV=geneve11
  	config_device
  	add_geneve_tunnel
  	attach_bpf $DEV geneve_set_tunnel geneve_get_tunnel
  	ping -c 1 10.1.1.100
  	ip netns exec at_ns0 ping -c 1 10.1.1.200
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  	cleanup
  }
  
  function test_ipip {
  	TYPE=ipip
  	DEV_NS=ipip00
  	DEV=ipip11
  	config_device
  	tcpdump -nei veth1 &
  	cat /sys/kernel/debug/tracing/trace_pipe &
  	add_ipip_tunnel
  	ethtool -K veth1 gso off gro off rx off tx off
  	ip link set dev veth1 mtu 1500
  	attach_bpf $DEV ipip_set_tunnel ipip_get_tunnel
  	ping -c 1 10.1.1.100
  	ip netns exec at_ns0 ping -c 1 10.1.1.200
  	ip netns exec at_ns0 iperf -sD -p 5200 > /dev/null
  	sleep 0.2
  	iperf -c 10.1.1.100 -n 5k -p 5200
  	cleanup
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  }
  
  function cleanup {
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  	set +ex
  	pkill iperf
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  	ip netns delete at_ns0
  	ip link del veth1
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  	ip link del ipip11
  	ip link del gretap11
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  	ip link del vxlan11
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  	ip link del geneve11
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  	ip link del erspan11
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  	pkill tcpdump
  	pkill cat
  	set -ex
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  }
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  trap cleanup 0 2 3 6 9
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  cleanup
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  echo "Testing GRE tunnel..."
  test_gre
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  echo "Testing ERSPAN tunnel..."
  test_erspan
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  echo "Testing VXLAN tunnel..."
  test_vxlan
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  echo "Testing GENEVE tunnel..."
  test_geneve
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  echo "Testing IPIP tunnel..."
  test_ipip
  echo "*** PASS ***"