180 lines
5.6 KiB
Bash
Executable File
180 lines
5.6 KiB
Bash
Executable File
#!/bin/bash
|
|
# SPDX-License-Identifier: GPL-2.0
|
|
|
|
function config_device {
|
|
ip netns add at_ns0
|
|
ip netns add at_ns1
|
|
ip netns add at_ns2
|
|
ip link add veth0 type veth peer name veth0b
|
|
ip link add veth1 type veth peer name veth1b
|
|
ip link add veth2 type veth peer name veth2b
|
|
ip link set veth0b up
|
|
ip link set veth1b up
|
|
ip link set veth2b up
|
|
ip link set dev veth0b mtu 1500
|
|
ip link set dev veth1b mtu 1500
|
|
ip link set dev veth2b mtu 1500
|
|
ip link set veth0 netns at_ns0
|
|
ip link set veth1 netns at_ns1
|
|
ip link set veth2 netns at_ns2
|
|
ip netns exec at_ns0 ip addr add 172.16.1.100/24 dev veth0
|
|
ip netns exec at_ns0 ip addr add 2401:db00::1/64 dev veth0 nodad
|
|
ip netns exec at_ns0 ip link set dev veth0 up
|
|
ip netns exec at_ns1 ip addr add 172.16.1.101/24 dev veth1
|
|
ip netns exec at_ns1 ip addr add 2401:db00::2/64 dev veth1 nodad
|
|
ip netns exec at_ns1 ip link set dev veth1 up
|
|
ip netns exec at_ns2 ip addr add 172.16.1.200/24 dev veth2
|
|
ip netns exec at_ns2 ip addr add 2401:db00::3/64 dev veth2 nodad
|
|
ip netns exec at_ns2 ip link set dev veth2 up
|
|
ip link add br0 type bridge
|
|
ip link set br0 up
|
|
ip link set dev br0 mtu 1500
|
|
ip link set veth0b master br0
|
|
ip link set veth1b master br0
|
|
ip link set veth2b master br0
|
|
}
|
|
|
|
function add_ipip_tunnel {
|
|
ip netns exec at_ns0 \
|
|
ip link add dev $DEV_NS type ipip 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
|
|
ip netns exec at_ns1 \
|
|
ip link add dev $DEV_NS type ipip local 172.16.1.101 remote 172.16.1.200
|
|
ip netns exec at_ns1 ip link set dev $DEV_NS up
|
|
# same inner IP address in at_ns0 and at_ns1
|
|
ip netns exec at_ns1 ip addr add dev $DEV_NS 10.1.1.100/24
|
|
|
|
ip netns exec at_ns2 ip link add dev $DEV type ipip external
|
|
ip netns exec at_ns2 ip link set dev $DEV up
|
|
ip netns exec at_ns2 ip addr add dev $DEV 10.1.1.200/24
|
|
}
|
|
|
|
function add_ipip6_tunnel {
|
|
ip netns exec at_ns0 \
|
|
ip link add dev $DEV_NS type ip6tnl mode ipip6 local 2401:db00::1/64 remote 2401:db00::3/64
|
|
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
|
|
ip netns exec at_ns1 \
|
|
ip link add dev $DEV_NS type ip6tnl mode ipip6 local 2401:db00::2/64 remote 2401:db00::3/64
|
|
ip netns exec at_ns1 ip link set dev $DEV_NS up
|
|
# same inner IP address in at_ns0 and at_ns1
|
|
ip netns exec at_ns1 ip addr add dev $DEV_NS 10.1.1.100/24
|
|
|
|
ip netns exec at_ns2 ip link add dev $DEV type ip6tnl mode ipip6 external
|
|
ip netns exec at_ns2 ip link set dev $DEV up
|
|
ip netns exec at_ns2 ip addr add dev $DEV 10.1.1.200/24
|
|
}
|
|
|
|
function add_ip6ip6_tunnel {
|
|
ip netns exec at_ns0 \
|
|
ip link add dev $DEV_NS type ip6tnl mode ip6ip6 local 2401:db00::1/64 remote 2401:db00::3/64
|
|
ip netns exec at_ns0 ip link set dev $DEV_NS up
|
|
ip netns exec at_ns0 ip addr add dev $DEV_NS 2601:646::1/64
|
|
ip netns exec at_ns1 \
|
|
ip link add dev $DEV_NS type ip6tnl mode ip6ip6 local 2401:db00::2/64 remote 2401:db00::3/64
|
|
ip netns exec at_ns1 ip link set dev $DEV_NS up
|
|
# same inner IP address in at_ns0 and at_ns1
|
|
ip netns exec at_ns1 ip addr add dev $DEV_NS 2601:646::1/64
|
|
|
|
ip netns exec at_ns2 ip link add dev $DEV type ip6tnl mode ip6ip6 external
|
|
ip netns exec at_ns2 ip link set dev $DEV up
|
|
ip netns exec at_ns2 ip addr add dev $DEV 2601:646::2/64
|
|
}
|
|
|
|
function attach_bpf {
|
|
DEV=$1
|
|
SET_TUNNEL=$2
|
|
GET_TUNNEL=$3
|
|
ip netns exec at_ns2 tc qdisc add dev $DEV clsact
|
|
ip netns exec at_ns2 tc filter add dev $DEV egress bpf da obj tcbpf2_kern.o sec $SET_TUNNEL
|
|
ip netns exec at_ns2 tc filter add dev $DEV ingress bpf da obj tcbpf2_kern.o sec $GET_TUNNEL
|
|
}
|
|
|
|
function test_ipip {
|
|
DEV_NS=ipip_std
|
|
DEV=ipip_bpf
|
|
config_device
|
|
# tcpdump -nei br0 &
|
|
cat /sys/kernel/debug/tracing/trace_pipe &
|
|
|
|
add_ipip_tunnel
|
|
attach_bpf $DEV ipip_set_tunnel ipip_get_tunnel
|
|
|
|
ip netns exec at_ns0 ping -c 1 10.1.1.200
|
|
ip netns exec at_ns2 ping -c 1 10.1.1.100
|
|
ip netns exec at_ns0 iperf -sD -p 5200 > /dev/null
|
|
ip netns exec at_ns1 iperf -sD -p 5201 > /dev/null
|
|
sleep 0.2
|
|
# tcp check _same_ IP over different tunnels
|
|
ip netns exec at_ns2 iperf -c 10.1.1.100 -n 5k -p 5200
|
|
ip netns exec at_ns2 iperf -c 10.1.1.100 -n 5k -p 5201
|
|
cleanup
|
|
}
|
|
|
|
# IPv4 over IPv6 tunnel
|
|
function test_ipip6 {
|
|
DEV_NS=ipip_std
|
|
DEV=ipip_bpf
|
|
config_device
|
|
# tcpdump -nei br0 &
|
|
cat /sys/kernel/debug/tracing/trace_pipe &
|
|
|
|
add_ipip6_tunnel
|
|
attach_bpf $DEV ipip6_set_tunnel ipip6_get_tunnel
|
|
|
|
ip netns exec at_ns0 ping -c 1 10.1.1.200
|
|
ip netns exec at_ns2 ping -c 1 10.1.1.100
|
|
ip netns exec at_ns0 iperf -sD -p 5200 > /dev/null
|
|
ip netns exec at_ns1 iperf -sD -p 5201 > /dev/null
|
|
sleep 0.2
|
|
# tcp check _same_ IP over different tunnels
|
|
ip netns exec at_ns2 iperf -c 10.1.1.100 -n 5k -p 5200
|
|
ip netns exec at_ns2 iperf -c 10.1.1.100 -n 5k -p 5201
|
|
cleanup
|
|
}
|
|
|
|
# IPv6 over IPv6 tunnel
|
|
function test_ip6ip6 {
|
|
DEV_NS=ipip_std
|
|
DEV=ipip_bpf
|
|
config_device
|
|
# tcpdump -nei br0 &
|
|
cat /sys/kernel/debug/tracing/trace_pipe &
|
|
|
|
add_ip6ip6_tunnel
|
|
attach_bpf $DEV ip6ip6_set_tunnel ip6ip6_get_tunnel
|
|
|
|
ip netns exec at_ns0 ping -6 -c 1 2601:646::2
|
|
ip netns exec at_ns2 ping -6 -c 1 2601:646::1
|
|
ip netns exec at_ns0 iperf -6sD -p 5200 > /dev/null
|
|
ip netns exec at_ns1 iperf -6sD -p 5201 > /dev/null
|
|
sleep 0.2
|
|
# tcp check _same_ IP over different tunnels
|
|
ip netns exec at_ns2 iperf -6c 2601:646::1 -n 5k -p 5200
|
|
ip netns exec at_ns2 iperf -6c 2601:646::1 -n 5k -p 5201
|
|
cleanup
|
|
}
|
|
|
|
function cleanup {
|
|
set +ex
|
|
pkill iperf
|
|
ip netns delete at_ns0
|
|
ip netns delete at_ns1
|
|
ip netns delete at_ns2
|
|
ip link del veth0
|
|
ip link del veth1
|
|
ip link del veth2
|
|
ip link del br0
|
|
pkill tcpdump
|
|
pkill cat
|
|
set -ex
|
|
}
|
|
|
|
cleanup
|
|
echo "Testing IP tunnels..."
|
|
test_ipip
|
|
test_ipip6
|
|
test_ip6ip6
|
|
echo "*** PASS ***"
|