From 6c6ea78a116164f6672e05554ec32bed1b195432 Mon Sep 17 00:00:00 2001 From: Amit Cohen Date: Tue, 21 Dec 2021 16:49:48 +0200 Subject: [PATCH] selftests: forwarding: Add a test for VxLAN symmetric routing with IPv6 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. Add a test which is similar to the existing IPv4 test to check IPv6. Signed-off-by: Amit Cohen Reviewed-by: Petr Machata Signed-off-by: Jakub Kicinski --- .../net/forwarding/vxlan_symmetric_ipv6.sh | 563 +++++++++++++++++++++ 1 file changed, 563 insertions(+) create mode 100755 tools/testing/selftests/net/forwarding/vxlan_symmetric_ipv6.sh diff --git a/tools/testing/selftests/net/forwarding/vxlan_symmetric_ipv6.sh b/tools/testing/selftests/net/forwarding/vxlan_symmetric_ipv6.sh new file mode 100755 index 0000000..9046334 --- /dev/null +++ b/tools/testing/selftests/net/forwarding/vxlan_symmetric_ipv6.sh @@ -0,0 +1,563 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 + + +# +--------------------------------+ +-----------------------------+ +# | vrf-h1 | | vrf-h2 | +# | + $h1 | | + $h2 | +# | | 2001:db8:1::1/64 | | | 2001:db8:2::1/64 | +# | | default via 2001:db8:1::3 | | | default via 2001:db8:2::3 | +# +----|---------------------------+ +-|---------------------------+ +# | | +# +----|------------------------------------------|---------------------------+ +# | SW | | | +# | +--|------------------------------------------|-------------------------+ | +# | | + $swp1 br1 + $swp2 | | +# | | vid 10 pvid untagged vid 20 pvid untagged | | +# | | | | +# | | + vx10 + vx20 | | +# | | local 2001:db8:3::1 local 2001:db8:3::1 | | +# | | remote 2001:db8:3::2 remote 2001:db8:3::2 | | +# | | id 1010 id 1020 | | +# | | dstport 4789 dstport 4789 | | +# | | vid 10 pvid untagged vid 20 pvid untagged | | +# | | | | +# | | + vx4001 | | +# | | local 2001:db8:3::1 | | +# | | remote 2001:db8:3::2 | | +# | | id 104001 | | +# | | dstport 4789 | | +# | | vid 4001 pvid untagged | | +# | | | | +# | +-----------------------------------+-----------------------------------+ | +# | | | +# | +-----------------------------------|-----------------------------------+ | +# | | | | | +# | | +--------------------------------+--------------------------------+ | | +# | | | | | | | +# | | + vlan10 | vlan20 + | | +# | | | 2001:db8:1::2/64 | 2001:db8:2::2/64 | | | +# | | | | | | | +# | | + vlan10-v (macvlan) + vlan20-v (macvlan) + | | +# | | 2001:db8:1::3/64 vlan4001 2001:db8:2::3/64 | | +# | | 00:00:5e:00:01:01 00:00:5e:00:01:01 | | +# | | vrf-green | | +# | +-----------------------------------------------------------------------+ | +# | | +# | + $rp1 +lo | +# | | 2001:db8:4::1/64 2001:db8:3::1 | +# +----|----------------------------------------------------------------------+ +# | +# +----|--------------------------------------------------------+ +# | | vrf-spine | +# | + $rp2 | +# | 2001:db8:4::2/64 | +# | | (maybe) HW +# ============================================================================= +# | | (likely) SW +# | | +# | + v1 (veth) | +# | | 2001:db8:5::2/64 | +# +----|--------------------------------------------------------+ +# | +# +----|----------------------------------------------------------------------+ +# | + v2 (veth) +lo NS1 (netns) | +# | 2001:db8:5::1/64 2001:db8:3::2/128 | +# | | +# | +-----------------------------------------------------------------------+ | +# | | vrf-green | | +# | | + vlan10-v (macvlan) vlan20-v (macvlan) + | | +# | | | 2001:db8:1::3/64 2001:db8:2::3/64 | | | +# | | | 00:00:5e:00:01:01 00:00:5e:00:01:01 | | | +# | | | vlan4001 | | | +# | | + vlan10 + vlan20 + | | +# | | | 2001:db8:1::3/64 | 2001:db8:2::3/64 | | | +# | | | | | | | +# | | +--------------------------------+--------------------------------+ | | +# | | | | | +# | +-----------------------------------|-----------------------------------+ | +# | | | +# | +-----------------------------------+-----------------------------------+ | +# | | | | +# | | + vx10 + vx20 | | +# | | local 2001:db8:3::2 local 2001:db8:3::2 | | +# | | remote 2001:db8:3::1 remote 2001:db8:3::1 | | +# | | id 1010 id 1020 | | +# | | dstport 4789 dstport 4789 | | +# | | vid 10 pvid untagged vid 20 pvid untagged | | +# | | | | +# | | + vx4001 | | +# | | local 2001:db8:3::2 | | +# | | remote 2001:db8:3::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) | | +# | | 2001:db8:1::4/64 | | 2001:db8:2::4/64 | | +# | | default via | | default via | | +# | | 2001:db8:1::3/64 | | 2001:db8:2::3/64 | | +# | +-------------------------+ +----------------------------+ | +# +---------------------------------------------------------------------------+ + +ALL_TESTS=" + ping_ipv6 +" +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/64 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/64 dev $if_name + + ip link set dev $if_name down + vrf_destroy $vrf_name +} + +h1_create() +{ + hx_create "vrf-h1" $h1 2001:db8:1::1 2001:db8:1::3 +} + +h1_destroy() +{ + hx_destroy "vrf-h1" $h1 2001:db8:1::1 2001:db8:1::3 +} + +h2_create() +{ + hx_create "vrf-h2" $h2 2001:db8:2::1 2001:db8:2::3 +} + +h2_destroy() +{ + hx_destroy "vrf-h2" $h2 2001:db8:2::1 2001:db8:2::3 +} + +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 2001:db8:4::1/64 + ip route add 2001:db8:3::2/128 nexthop via 2001:db8:4::2 + + ip link add name vx10 type vxlan id 1010 \ + local 2001:db8:3::1 remote 2001:db8:3::2 dstport 4789 \ + nolearning udp6zerocsumrx udp6zerocsumtx 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 2001:db8:3::1 remote 2001:db8:3::2 dstport 4789 \ + nolearning udp6zerocsumrx udp6zerocsumtx 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 + + ip link set dev $swp2 master br1 + ip link set dev $swp2 up + + ip link add name vx4001 type vxlan id 104001 \ + local 2001:db8:3::1 dstport 4789 \ + nolearning udp6zerocsumrx udp6zerocsumtx 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 2001:db8:3::1/128 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 2001:db8:1::2/64 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 2001:db8:1::3/64 dev vlan10-v + + ip link add link br1 name vlan20 up master vrf-green type vlan id 20 + ip address add 2001:db8:2::2/64 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 2001:db8:2::3/64 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 + + bridge vlan add vid 10 dev $swp1 pvid untagged + bridge vlan add vid 20 dev $swp2 pvid untagged +} + +switch_destroy() +{ + bridge vlan del vid 20 dev br1 self + bridge vlan del vid 10 dev br1 self + + 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 + ip link del dev vlan4001 + + ip link del dev vlan20 + + ip link del dev vlan10 + + vrf_destroy "vrf-green" + + ip address del 2001:db8:3::1/128 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 2001:db8:3::2 nexthop via 2001:db8:4::2 + ip address del dev $rp1 2001:db8:4::1/64 + 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 2001:db8:4::2/64 dev $rp2 + ip address add 2001:db8:5::2/64 dev v1 + + ip route add 2001:db8:3::1/128 vrf vrf-spine nexthop via \ + 2001:db8:4::1 + ip route add 2001:db8:3::2/128 vrf vrf-spine nexthop via \ + 2001:db8:5::1 +} + +spine_destroy() +{ + ip route del 2001:db8:3::2/128 vrf vrf-spine nexthop via \ + 2001:db8:5::1 + ip route del 2001:db8:3::1/128 vrf vrf-spine nexthop via \ + 2001:db8:4::1 + + ip address del 2001:db8:5::2/64 dev v1 + ip address del 2001:db8:4::2/64 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 2001:db8:1::4 2001:db8:1::3 +} +export -f ns_h1_create + +ns_h2_create() +{ + hx_create "vrf-h2" w4 2001:db8:2::4 2001:db8:2::3 +} +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 2001:db8:5::1/64 + ip route add 2001:db8:3::1 nexthop via 2001:db8:5::2 + + ip link add name vx10 type vxlan id 1010 \ + local 2001:db8:3::2 remote 2001:db8:3::1 dstport 4789 \ + nolearning udp6zerocsumrx udp6zerocsumtx 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 2001:db8:3::2 remote 2001:db8:3::1 dstport 4789 \ + nolearning udp6zerocsumrx udp6zerocsumtx 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 2001:db8:3::2 dstport 4789 \ + nolearning udp6zerocsumrx udp6zerocsumtx 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 2001:db8:3::2/128 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 2001:db8:1::3/64 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 2001:db8:1::3/64 dev vlan10-v + + ip link add link br1 name vlan20 up master vrf-green type vlan id 20 + ip address add 2001:db8:2::3/64 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 2001:db8:2::3/64 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 2001:db8:1::4 2001:db8:2::4 \ + 2001:db8:3::2 + in_ns ns1 __l2_vni_init $h1_mac $h2_mac 2001:db8:1::1 2001:db8:2::1 \ + 2001:db8:3::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/128 vrf vrf-green nexthop via $vtep_ip \ + dev vlan4001 onlink + ip route add $host2_ip/128 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 2001:db8:3::2 2001:db8:1::4 \ + 2001:db8:2::4 + in_ns ns1 __l3_vni_init $vlan4001_mac 2001:db8:3::1 2001:db8:1::1 \ + 2001:db8:2::1 +} + +setup_prepare() +{ + h1=${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 + in_ns ns1 forwarding_enable + + 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_ipv6() +{ + ping6_test $h1 2001:db8:2::1 ": local->local vid 10->vid 20" + ping6_test $h1 2001:db8:1::4 ": local->remote vid 10->vid 10" + ping6_test $h2 2001:db8:2::4 ": local->remote vid 20->vid 20" + ping6_test $h1 2001:db8:2::4 ": local->remote vid 10->vid 20" + ping6_test $h2 2001:db8:1::4 ": local->remote vid 20->vid 10" +} + +trap cleanup EXIT + +setup_prepare +setup_wait + +tests_run + +exit $EXIT_STATUS -- 2.7.4