tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
selftests/net: convert test_vxlan_under_vrf.sh to run it in unique namespace
Here is the test result after conversion.
]# ./test_vxlan_under_vrf.sh
Checking HV connectivity [ OK ]
Check VM connectivity through VXLAN (underlay in the default VRF) [ OK ]
Check VM connectivity through VXLAN (underlay in a VRF) [ OK ]
Acked-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Tested-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
authored by
Hangbin Liu
and committed by
David S. Miller
d6aab1f6
d79e907b
+36
-34
+36
-34
tools/testing/selftests/net/test_vxlan_under_vrf.sh
+36
-34
tools/testing/selftests/net/test_vxlan_under_vrf.sh
···
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# This tests both the connectivity between vm-1 and vm-2, and that the underlay
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# can be moved in and out of the vrf by unsetting and setting veth0's master.
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source lib.sh
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set -e
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cleanup() {
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ip link del veth-hv-1 2>/dev/null || true
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ip link del veth-tap 2>/dev/null || true
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-
for ns in hv-1 hv-2 vm-1 vm-2; do
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ip netns del $ns 2>/dev/null || true
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done
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cleanup_ns $hv_1 $hv_2 $vm_1 $vm_2
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}
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# Clean start
···
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[[ $1 == "clean" ]] && exit 0
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trap cleanup EXIT
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setup_ns hv_1 hv_2 vm_1 vm_2
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hv[1]=$hv_1
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hv[2]=$hv_2
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vm[1]=$vm_1
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vm[2]=$vm_2
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# Setup "Hypervisors" simulated with netns
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ip link add veth-hv-1 type veth peer name veth-hv-2
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setup-hv-networking() {
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hv=$1
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id=$1
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ip netns add hv-$hv
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ip link set veth-hv-$hv netns hv-$hv
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ip -netns hv-$hv link set veth-hv-$hv name veth0
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ip link set veth-hv-$id netns ${hv[$id]}
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ip -netns ${hv[$id]} link set veth-hv-$id name veth0
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ip -netns hv-$hv link add vrf-underlay type vrf table 1
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ip -netns hv-$hv link set vrf-underlay up
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ip -netns hv-$hv addr add 172.16.0.$hv/24 dev veth0
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ip -netns hv-$hv link set veth0 up
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ip -netns ${hv[$id]} link add vrf-underlay type vrf table 1
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ip -netns ${hv[$id]} link set vrf-underlay up
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ip -netns ${hv[$id]} addr add 172.16.0.$id/24 dev veth0
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ip -netns ${hv[$id]} link set veth0 up
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ip -netns hv-$hv link add br0 type bridge
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ip -netns hv-$hv link set br0 up
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ip -netns ${hv[$id]} link add br0 type bridge
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ip -netns ${hv[$id]} link set br0 up
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ip -netns hv-$hv link add vxlan0 type vxlan id 10 local 172.16.0.$hv dev veth0 dstport 4789
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ip -netns hv-$hv link set vxlan0 master br0
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ip -netns hv-$hv link set vxlan0 up
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ip -netns ${hv[$id]} link add vxlan0 type vxlan id 10 local 172.16.0.$id dev veth0 dstport 4789
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ip -netns ${hv[$id]} link set vxlan0 master br0
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ip -netns ${hv[$id]} link set vxlan0 up
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}
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setup-hv-networking 1
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setup-hv-networking 2
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# Check connectivity between HVs by pinging hv-2 from hv-1
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echo -n "Checking HV connectivity "
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ip netns exec hv-1 ping -c 1 -W 1 172.16.0.2 &> /dev/null || (echo "[FAIL]"; false)
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ip netns exec $hv_1 ping -c 1 -W 1 172.16.0.2 &> /dev/null || (echo "[FAIL]"; false)
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echo "[ OK ]"
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# Setups a "VM" simulated by a netns an a veth pair
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setup-vm() {
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id=$1
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ip netns add vm-$id
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ip link add veth-tap type veth peer name veth-hv
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ip link set veth-tap netns hv-$id
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ip -netns hv-$id link set veth-tap master br0
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ip -netns hv-$id link set veth-tap up
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ip link set veth-tap netns ${hv[$id]}
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ip -netns ${hv[$id]} link set veth-tap master br0
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ip -netns ${hv[$id]} link set veth-tap up
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ip link set veth-hv address 02:1d:8d:dd:0c:6$id
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ip link set veth-hv netns vm-$id
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ip -netns vm-$id addr add 10.0.0.$id/24 dev veth-hv
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ip -netns vm-$id link set veth-hv up
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ip link set veth-hv netns ${vm[$id]}
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ip -netns ${vm[$id]} addr add 10.0.0.$id/24 dev veth-hv
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ip -netns ${vm[$id]} link set veth-hv up
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}
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setup-vm 1
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setup-vm 2
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# Setup VTEP routes to make ARP work
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bridge -netns hv-1 fdb add 00:00:00:00:00:00 dev vxlan0 dst 172.16.0.2 self permanent
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bridge -netns hv-2 fdb add 00:00:00:00:00:00 dev vxlan0 dst 172.16.0.1 self permanent
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bridge -netns $hv_1 fdb add 00:00:00:00:00:00 dev vxlan0 dst 172.16.0.2 self permanent
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bridge -netns $hv_2 fdb add 00:00:00:00:00:00 dev vxlan0 dst 172.16.0.1 self permanent
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echo -n "Check VM connectivity through VXLAN (underlay in the default VRF) "
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ip netns exec vm-1 ping -c 1 -W 1 10.0.0.2 &> /dev/null || (echo "[FAIL]"; false)
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ip netns exec $vm_1 ping -c 1 -W 1 10.0.0.2 &> /dev/null || (echo "[FAIL]"; false)
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echo "[ OK ]"
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# Move the underlay to a non-default VRF
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ip -netns hv-1 link set veth0 vrf vrf-underlay
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ip -netns hv-1 link set vxlan0 down
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ip -netns hv-1 link set vxlan0 up
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ip -netns hv-2 link set veth0 vrf vrf-underlay
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ip -netns hv-2 link set vxlan0 down
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ip -netns hv-2 link set vxlan0 up
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ip -netns $hv_1 link set veth0 vrf vrf-underlay
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ip -netns $hv_1 link set vxlan0 down
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ip -netns $hv_1 link set vxlan0 up
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ip -netns $hv_2 link set veth0 vrf vrf-underlay
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ip -netns $hv_2 link set vxlan0 down
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ip -netns $hv_2 link set vxlan0 up
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echo -n "Check VM connectivity through VXLAN (underlay in a VRF) "
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ip netns exec vm-1 ping -c 1 -W 1 10.0.0.2 &> /dev/null || (echo "[FAIL]"; false)
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ip netns exec $vm_1 ping -c 1 -W 1 10.0.0.2 &> /dev/null || (echo "[FAIL]"; false)
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echo "[ OK ]"