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Date: Mon, 21 Jan 2019 13:22:54 +0000
From: Ido Schimmel <idosch@...lanox.com>
To: "netdev@...r.kernel.org" <netdev@...r.kernel.org>
CC: "davem@...emloft.net" <davem@...emloft.net>,
"roopa@...ulusnetworks.com" <roopa@...ulusnetworks.com>,
mlxsw <mlxsw@...lanox.com>, Ido Schimmel <idosch@...lanox.com>
Subject: [PATCH net-next 4/4] selftests: forwarding: Add a test for VXLAN
symmetric routing
In a similar fashion to the asymmetric test, add a test for symmetric
routing. In symmetric routing both the ingress and egress VTEPs perform
routing in the overlay network into / from the VXLAN tunnel. Packets in
different directions use the same VNI - the L3 VNI. Different tenants
(VRFs) use different L3 VNIs.
Signed-off-by: Ido Schimmel <idosch@...lanox.com>
Reviewed-by: Petr Machata <petrm@...lanox.com>
---
.../net/forwarding/vxlan_symmetric.sh | 551 ++++++++++++++++++
1 file changed, 551 insertions(+)
create mode 100755 tools/testing/selftests/net/forwarding/vxlan_symmetric.sh
diff --git a/tools/testing/selftests/net/forwarding/vxlan_symmetric.sh b/tools/testing/selftests/net/forwarding/vxlan_symmetric.sh
new file mode 100755
index 000000000000..1209031bc794
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/vxlan_symmetric.sh
@@ -0,0 +1,551 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# +---------------------------+ +------------------------------+
+# | vrf-h1 | | vrf-h2 |
+# | + $h1 | | + $h2 |
+# | | 10.1.1.101/24 | | | 10.1.2.101/24 |
+# | | default via 10.1.1.1 | | | default via 10.1.2.1 |
+# +----|----------------------+ +----|-------------------------+
+# | |
+# +----|--------------------------------------------|-------------------------+
+# | SW | | |
+# | +--|--------------------------------------------|-----------------------+ |
+# | | + $swp1 br1 + $swp2 | |
+# | | vid 10 pvid untagged vid 20 pvid untagged | |
+# | | | |
+# | | + vx10 + vx20 | |
+# | | local 10.0.0.1 local 10.0.0.1 | |
+# | | remote 10.0.0.2 remote 10.0.0.2 | |
+# | | id 1010 id 1020 | |
+# | | dstport 4789 dstport 4789 | |
+# | | vid 10 pvid untagged vid 20 pvid untagged | |
+# | | | |
+# | | + vx4001 | |
+# | | local 10.0.0.1 | |
+# | | remote 10.0.0.2 | |
+# | | id 104001 | |
+# | | dstport 4789 | |
+# | | vid 4001 pvid untagged | |
+# | | | |
+# | +-----------------------------------+-----------------------------------+ |
+# | | |
+# | +-----------------------------------|-----------------------------------+ |
+# | | | | |
+# | | +--------------------------------+--------------------------------+ | |
+# | | | | | | |
+# | | + vlan10 | vlan20 + | |
+# | | | 10.1.1.11/24 | 10.1.2.11/24 | | |
+# | | | | | | |
+# | | + vlan10-v (macvlan) + vlan20-v (macvlan) + | |
+# | | 10.1.1.1/24 vlan4001 10.1.2.1/24 | |
+# | | 00:00:5e:00:01:01 00:00:5e:00:01:01 | |
+# | | vrf-green | |
+# | +-----------------------------------------------------------------------+ |
+# | |
+# | + $rp1 +lo |
+# | | 192.0.2.1/24 10.0.0.1/32 |
+# +----|----------------------------------------------------------------------+
+# |
+# +----|--------------------------------------------------------+
+# | | vrf-spine |
+# | + $rp2 |
+# | 192.0.2.2/24 |
+# | | (maybe) HW
+# =============================================================================
+# | | (likely) SW
+# | |
+# | + v1 (veth) |
+# | | 192.0.3.2/24 |
+# +----|--------------------------------------------------------+
+# |
+# +----|----------------------------------------------------------------------+
+# | + v2 (veth) +lo NS1 (netns) |
+# | 192.0.3.1/24 10.0.0.2/32 |
+# | |
+# | +-----------------------------------------------------------------------+ |
+# | | vrf-green | |
+# | | + vlan10-v (macvlan) vlan20-v (macvlan) + | |
+# | | | 10.1.1.1/24 10.1.2.1/24 | | |
+# | | | 00:00:5e:00:01:01 00:00:5e:00:01:01 | | |
+# | | | vlan4001 | | |
+# | | + vlan10 + vlan20 + | |
+# | | | 10.1.1.12/24 | 10.1.2.12/24 | | |
+# | | | | | | |
+# | | +--------------------------------+--------------------------------+ | |
+# | | | | |
+# | +-----------------------------------|-----------------------------------+ |
+# | | |
+# | +-----------------------------------+-----------------------------------+ |
+# | | | |
+# | | + vx10 + vx20 | |
+# | | local 10.0.0.2 local 10.0.0.2 | |
+# | | remote 10.0.0.1 remote 10.0.0.1 | |
+# | | id 1010 id 1020 | |
+# | | dstport 4789 dstport 4789 | |
+# | | vid 10 pvid untagged vid 20 pvid untagged | |
+# | | | |
+# | | + vx4001 | |
+# | | local 10.0.0.2 | |
+# | | remote 10.0.0.1 | |
+# | | id 104001 | |
+# | | dstport 4789 | |
+# | | vid 4001 pvid untagged | |
+# | | | |
+# | | + w1 (veth) + w3 (veth) | |
+# | | | vid 10 pvid untagged br1 | vid 20 pvid untagged | |
+# | +--|------------------------------------------|-------------------------+ |
+# | | | |
+# | | | |
+# | +--|----------------------+ +--|-------------------------+ |
+# | | | vrf-h1 | | | vrf-h2 | |
+# | | + w2 (veth) | | + w4 (veth) | |
+# | | 10.1.1.102/24 | | 10.1.2.102/24 | |
+# | | default via 10.1.1.1 | | default via 10.1.2.1 | |
+# | +-------------------------+ +----------------------------+ |
+# +---------------------------------------------------------------------------+
+
+ALL_TESTS="
+ ping_ipv4
+"
+NUM_NETIFS=6
+source lib.sh
+
+hx_create()
+{
+ local vrf_name=$1; shift
+ local if_name=$1; shift
+ local ip_addr=$1; shift
+ local gw_ip=$1; shift
+
+ vrf_create $vrf_name
+ ip link set dev $if_name master $vrf_name
+ ip link set dev $vrf_name up
+ ip link set dev $if_name up
+
+ ip address add $ip_addr/24 dev $if_name
+ ip neigh replace $gw_ip lladdr 00:00:5e:00:01:01 nud permanent \
+ dev $if_name
+ ip route add default vrf $vrf_name nexthop via $gw_ip
+}
+export -f hx_create
+
+hx_destroy()
+{
+ local vrf_name=$1; shift
+ local if_name=$1; shift
+ local ip_addr=$1; shift
+ local gw_ip=$1; shift
+
+ ip route del default vrf $vrf_name nexthop via $gw_ip
+ ip neigh del $gw_ip dev $if_name
+ ip address del $ip_addr/24 dev $if_name
+
+ ip link set dev $if_name down
+ vrf_destroy $vrf_name
+}
+
+h1_create()
+{
+ hx_create "vrf-h1" $h1 10.1.1.101 10.1.1.1
+}
+
+h1_destroy()
+{
+ hx_destroy "vrf-h1" $h1 10.1.1.101 10.1.1.1
+}
+
+h2_create()
+{
+ hx_create "vrf-h2" $h2 10.1.2.101 10.1.2.1
+}
+
+h2_destroy()
+{
+ hx_destroy "vrf-h2" $h2 10.1.2.101 10.1.2.1
+}
+
+switch_create()
+{
+ ip link add name br1 type bridge vlan_filtering 1 vlan_default_pvid 0 \
+ mcast_snooping 0
+ # Make sure the bridge uses the MAC address of the local port and not
+ # that of the VxLAN's device.
+ ip link set dev br1 address $(mac_get $swp1)
+ ip link set dev br1 up
+
+ ip link set dev $rp1 up
+ ip address add dev $rp1 192.0.2.1/24
+ ip route add 10.0.0.2/32 nexthop via 192.0.2.2
+
+ ip link add name vx10 type vxlan id 1010 \
+ local 10.0.0.1 remote 10.0.0.2 dstport 4789 \
+ nolearning noudpcsum tos inherit ttl 100
+ ip link set dev vx10 up
+
+ ip link set dev vx10 master br1
+ bridge vlan add vid 10 dev vx10 pvid untagged
+
+ ip link add name vx20 type vxlan id 1020 \
+ local 10.0.0.1 remote 10.0.0.2 dstport 4789 \
+ nolearning noudpcsum tos inherit ttl 100
+ ip link set dev vx20 up
+
+ ip link set dev vx20 master br1
+ bridge vlan add vid 20 dev vx20 pvid untagged
+
+ ip link set dev $swp1 master br1
+ ip link set dev $swp1 up
+ bridge vlan add vid 10 dev $swp1 pvid untagged
+
+ ip link set dev $swp2 master br1
+ ip link set dev $swp2 up
+ bridge vlan add vid 20 dev $swp2 pvid untagged
+
+ ip link add name vx4001 type vxlan id 104001 \
+ local 10.0.0.1 dstport 4789 \
+ nolearning noudpcsum tos inherit ttl 100
+ ip link set dev vx4001 up
+
+ ip link set dev vx4001 master br1
+ bridge vlan add vid 4001 dev vx4001 pvid untagged
+
+ ip address add 10.0.0.1/32 dev lo
+
+ # Create SVIs
+ vrf_create "vrf-green"
+ ip link set dev vrf-green up
+
+ ip link add link br1 name vlan10 up master vrf-green type vlan id 10
+ ip address add 10.1.1.11/24 dev vlan10
+ ip link add link vlan10 name vlan10-v up master vrf-green \
+ address 00:00:5e:00:01:01 type macvlan mode private
+ ip address add 10.1.1.1/24 dev vlan10-v
+
+ ip link add link br1 name vlan20 up master vrf-green type vlan id 20
+ ip address add 10.1.2.11/24 dev vlan20
+ ip link add link vlan20 name vlan20-v up master vrf-green \
+ address 00:00:5e:00:01:01 type macvlan mode private
+ ip address add 10.1.2.1/24 dev vlan20-v
+
+ ip link add link br1 name vlan4001 up master vrf-green \
+ type vlan id 4001
+
+ bridge vlan add vid 10 dev br1 self
+ bridge vlan add vid 20 dev br1 self
+ bridge vlan add vid 4001 dev br1 self
+
+ bridge fdb add 00:00:5e:00:01:01 dev br1 self local vlan 10
+ bridge fdb add 00:00:5e:00:01:01 dev br1 self local vlan 20
+}
+
+switch_destroy()
+{
+ bridge fdb del 00:00:5e:00:01:01 dev br1 self local vlan 20
+ bridge fdb del 00:00:5e:00:01:01 dev br1 self local vlan 10
+
+ bridge vlan del vid 4001 dev br1 self
+ bridge vlan del vid 20 dev br1 self
+ bridge vlan del vid 10 dev br1 self
+
+ ip link del dev vlan4001
+
+ ip link del dev vlan20
+
+ ip link del dev vlan10
+
+ vrf_destroy "vrf-green"
+
+ ip address del 10.0.0.1/32 dev lo
+
+ bridge vlan del vid 20 dev $swp2
+ ip link set dev $swp2 down
+ ip link set dev $swp2 nomaster
+
+ bridge vlan del vid 10 dev $swp1
+ ip link set dev $swp1 down
+ ip link set dev $swp1 nomaster
+
+ bridge vlan del vid 4001 dev vx4001
+ ip link set dev vx4001 nomaster
+
+ ip link set dev vx4001 down
+ ip link del dev vx4001
+
+ bridge vlan del vid 20 dev vx20
+ ip link set dev vx20 nomaster
+
+ ip link set dev vx20 down
+ ip link del dev vx20
+
+ bridge vlan del vid 10 dev vx10
+ ip link set dev vx10 nomaster
+
+ ip link set dev vx10 down
+ ip link del dev vx10
+
+ ip route del 10.0.0.2/32 nexthop via 192.0.2.2
+ ip address del dev $rp1 192.0.2.1/24
+ ip link set dev $rp1 down
+
+ ip link set dev br1 down
+ ip link del dev br1
+}
+
+spine_create()
+{
+ vrf_create "vrf-spine"
+ ip link set dev $rp2 master vrf-spine
+ ip link set dev v1 master vrf-spine
+ ip link set dev vrf-spine up
+ ip link set dev $rp2 up
+ ip link set dev v1 up
+
+ ip address add 192.0.2.2/24 dev $rp2
+ ip address add 192.0.3.2/24 dev v1
+
+ ip route add 10.0.0.1/32 vrf vrf-spine nexthop via 192.0.2.1
+ ip route add 10.0.0.2/32 vrf vrf-spine nexthop via 192.0.3.1
+}
+
+spine_destroy()
+{
+ ip route del 10.0.0.2/32 vrf vrf-spine nexthop via 192.0.3.1
+ ip route del 10.0.0.1/32 vrf vrf-spine nexthop via 192.0.2.1
+
+ ip address del 192.0.3.2/24 dev v1
+ ip address del 192.0.2.2/24 dev $rp2
+
+ ip link set dev v1 down
+ ip link set dev $rp2 down
+ vrf_destroy "vrf-spine"
+}
+
+ns_h1_create()
+{
+ hx_create "vrf-h1" w2 10.1.1.102 10.1.1.1
+}
+export -f ns_h1_create
+
+ns_h2_create()
+{
+ hx_create "vrf-h2" w4 10.1.2.102 10.1.2.1
+}
+export -f ns_h2_create
+
+ns_switch_create()
+{
+ ip link add name br1 type bridge vlan_filtering 1 vlan_default_pvid 0 \
+ mcast_snooping 0
+ ip link set dev br1 up
+
+ ip link set dev v2 up
+ ip address add dev v2 192.0.3.1/24
+ ip route add 10.0.0.1/32 nexthop via 192.0.3.2
+
+ ip link add name vx10 type vxlan id 1010 \
+ local 10.0.0.2 remote 10.0.0.1 dstport 4789 \
+ nolearning noudpcsum tos inherit ttl 100
+ ip link set dev vx10 up
+
+ ip link set dev vx10 master br1
+ bridge vlan add vid 10 dev vx10 pvid untagged
+
+ ip link add name vx20 type vxlan id 1020 \
+ local 10.0.0.2 remote 10.0.0.1 dstport 4789 \
+ nolearning noudpcsum tos inherit ttl 100
+ ip link set dev vx20 up
+
+ ip link set dev vx20 master br1
+ bridge vlan add vid 20 dev vx20 pvid untagged
+
+ ip link add name vx4001 type vxlan id 104001 \
+ local 10.0.0.2 dstport 4789 \
+ nolearning noudpcsum tos inherit ttl 100
+ ip link set dev vx4001 up
+
+ ip link set dev vx4001 master br1
+ bridge vlan add vid 4001 dev vx4001 pvid untagged
+
+ ip link set dev w1 master br1
+ ip link set dev w1 up
+ bridge vlan add vid 10 dev w1 pvid untagged
+
+ ip link set dev w3 master br1
+ ip link set dev w3 up
+ bridge vlan add vid 20 dev w3 pvid untagged
+
+ ip address add 10.0.0.2/32 dev lo
+
+ # Create SVIs
+ vrf_create "vrf-green"
+ ip link set dev vrf-green up
+
+ ip link add link br1 name vlan10 up master vrf-green type vlan id 10
+ ip address add 10.1.1.12/24 dev vlan10
+ ip link add link vlan10 name vlan10-v up master vrf-green \
+ address 00:00:5e:00:01:01 type macvlan mode private
+ ip address add 10.1.1.1/24 dev vlan10-v
+
+ ip link add link br1 name vlan20 up master vrf-green type vlan id 20
+ ip address add 10.1.2.12/24 dev vlan20
+ ip link add link vlan20 name vlan20-v up master vrf-green \
+ address 00:00:5e:00:01:01 type macvlan mode private
+ ip address add 10.1.2.1/24 dev vlan20-v
+
+ ip link add link br1 name vlan4001 up master vrf-green \
+ type vlan id 4001
+
+ bridge vlan add vid 10 dev br1 self
+ bridge vlan add vid 20 dev br1 self
+ bridge vlan add vid 4001 dev br1 self
+
+ bridge fdb add 00:00:5e:00:01:01 dev br1 self local vlan 10
+ bridge fdb add 00:00:5e:00:01:01 dev br1 self local vlan 20
+}
+export -f ns_switch_create
+
+ns_init()
+{
+ ip link add name w1 type veth peer name w2
+ ip link add name w3 type veth peer name w4
+
+ ip link set dev lo up
+
+ ns_h1_create
+ ns_h2_create
+ ns_switch_create
+}
+export -f ns_init
+
+ns1_create()
+{
+ ip netns add ns1
+ ip link set dev v2 netns ns1
+ in_ns ns1 ns_init
+}
+
+ns1_destroy()
+{
+ ip netns exec ns1 ip link set dev v2 netns 1
+ ip netns del ns1
+}
+
+__l2_vni_init()
+{
+ local mac1=$1; shift
+ local mac2=$1; shift
+ local ip1=$1; shift
+ local ip2=$1; shift
+ local dst=$1; shift
+
+ bridge fdb add $mac1 dev vx10 self master extern_learn static \
+ dst $dst vlan 10
+ bridge fdb add $mac2 dev vx20 self master extern_learn static \
+ dst $dst vlan 20
+
+ ip neigh add $ip1 lladdr $mac1 nud noarp dev vlan10 \
+ extern_learn
+ ip neigh add $ip2 lladdr $mac2 nud noarp dev vlan20 \
+ extern_learn
+}
+export -f __l2_vni_init
+
+l2_vni_init()
+{
+ local h1_ns_mac=$(in_ns ns1 mac_get w2)
+ local h2_ns_mac=$(in_ns ns1 mac_get w4)
+ local h1_mac=$(mac_get $h1)
+ local h2_mac=$(mac_get $h2)
+
+ __l2_vni_init $h1_ns_mac $h2_ns_mac 10.1.1.102 10.1.2.102 10.0.0.2
+ in_ns ns1 __l2_vni_init $h1_mac $h2_mac 10.1.1.101 10.1.2.101 10.0.0.1
+}
+
+__l3_vni_init()
+{
+ local mac=$1; shift
+ local vtep_ip=$1; shift
+ local host1_ip=$1; shift
+ local host2_ip=$1; shift
+
+ bridge fdb add $mac dev vx4001 self master extern_learn static \
+ dst $vtep_ip vlan 4001
+
+ ip neigh add $vtep_ip lladdr $mac nud noarp dev vlan4001 extern_learn
+
+ ip route add $host1_ip/32 vrf vrf-green nexthop via $vtep_ip \
+ dev vlan4001 onlink
+ ip route add $host2_ip/32 vrf vrf-green nexthop via $vtep_ip \
+ dev vlan4001 onlink
+}
+export -f __l3_vni_init
+
+l3_vni_init()
+{
+ local vlan4001_ns_mac=$(in_ns ns1 mac_get vlan4001)
+ local vlan4001_mac=$(mac_get vlan4001)
+
+ __l3_vni_init $vlan4001_ns_mac 10.0.0.2 10.1.1.102 10.1.2.102
+ in_ns ns1 __l3_vni_init $vlan4001_mac 10.0.0.1 10.1.1.101 10.1.2.101
+}
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ swp1=${NETIFS[p2]}
+
+ swp2=${NETIFS[p3]}
+ h2=${NETIFS[p4]}
+
+ rp1=${NETIFS[p5]}
+ rp2=${NETIFS[p6]}
+
+ vrf_prepare
+ forwarding_enable
+
+ h1_create
+ h2_create
+ switch_create
+
+ ip link add name v1 type veth peer name v2
+ spine_create
+ ns1_create
+
+ l2_vni_init
+ l3_vni_init
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ ns1_destroy
+ spine_destroy
+ ip link del dev v1
+
+ switch_destroy
+ h2_destroy
+ h1_destroy
+
+ forwarding_restore
+ vrf_cleanup
+}
+
+ping_ipv4()
+{
+ ping_test $h1 10.1.2.101 ": local->local vid 10->vid 20"
+ ping_test $h1 10.1.1.102 ": local->remote vid 10->vid 10"
+ ping_test $h2 10.1.2.102 ": local->remote vid 20->vid 20"
+ ping_test $h1 10.1.2.102 ": local->remote vid 10->vid 20"
+ ping_test $h2 10.1.1.102 ": local->remote vid 20->vid 10"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
--
2.20.1
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