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selftests: forwarding: Add a skeleton of vxlan_bridge_1d
This skeleton sets up a topology with three VXLAN endpoints: one "local", possibly offloaded, and two "remote", formed using veth pairs and likely purely software bridges. The "local" endpoint is connected to host systems by a VLAN-unaware bridge. Since VXLAN tunnels must be unique per namespace, each of the "remote" endpoints is in its own namespace. H3 forms the bridge between the three domains. Signed-off-by: Petr Machata <petrm@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Petr Machata
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Nov 20, 2018
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tools/testing/selftests/net/forwarding/vxlan_bridge_1d.sh
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| @@ -0,0 +1,296 @@ | ||
| #!/bin/bash | ||
| # SPDX-License-Identifier: GPL-2.0 | ||
|
|
||
| # +--------------------+ +----------------------+ | ||
| # | H1 (vrf) | | H2 (vrf) | | ||
| # | + $h1 | | + $h2 | | ||
| # | | 192.0.2.1/28 | | | 192.0.2.2/28 | | ||
| # +----|---------------+ +--|-------------------+ | ||
| # | | | ||
| # +----|--------------------------------------------------|-------------------+ | ||
| # | SW | | | | ||
| # | +--|--------------------------------------------------|-----------------+ | | ||
| # | | + $swp1 BR1 (802.1d) + $swp2 | | | ||
| # | | | | | ||
| # | | + vx1 (vxlan) | | | ||
| # | | local 192.0.2.17 | | | ||
| # | | remote 192.0.2.34 192.0.2.50 | | | ||
| # | | id 1000 dstport $VXPORT | | | ||
| # | +-----------------------------------------------------------------------+ | | ||
| # | | | ||
| # | 192.0.2.32/28 via 192.0.2.18 | | ||
| # | 192.0.2.48/28 via 192.0.2.18 | | ||
| # | | | ||
| # | + $rp1 | | ||
| # | | 192.0.2.17/28 | | ||
| # +----|----------------------------------------------------------------------+ | ||
| # | | ||
| # +----|--------------------------------------------------------+ | ||
| # | | VRP2 (vrf) | | ||
| # | + $rp2 | | ||
| # | 192.0.2.18/28 | | ||
| # | | (maybe) HW | ||
| # ============================================================================= | ||
| # | | (likely) SW | ||
| # | + v1 (veth) + v3 (veth) | | ||
| # | | 192.0.2.33/28 | 192.0.2.49/28 | | ||
| # +----|---------------------------------------|----------------+ | ||
| # | | | ||
| # +----|------------------------------+ +----|------------------------------+ | ||
| # | + v2 (veth) NS1 (netns) | | + v4 (veth) NS2 (netns) | | ||
| # | 192.0.2.34/28 | | 192.0.2.50/28 | | ||
| # | | | | | ||
| # | 192.0.2.16/28 via 192.0.2.33 | | 192.0.2.16/28 via 192.0.2.49 | | ||
| # | 192.0.2.50/32 via 192.0.2.33 | | 192.0.2.34/32 via 192.0.2.49 | | ||
| # | | | | | ||
| # | +-------------------------------+ | | +-------------------------------+ | | ||
| # | | BR2 (802.1d) | | | | BR2 (802.1d) | | | ||
| # | | + vx2 (vxlan) | | | | + vx2 (vxlan) | | | ||
| # | | local 192.0.2.34 | | | | local 192.0.2.50 | | | ||
| # | | remote 192.0.2.17 | | | | remote 192.0.2.17 | | | ||
| # | | remote 192.0.2.50 | | | | remote 192.0.2.34 | | | ||
| # | | id 1000 dstport $VXPORT | | | | id 1000 dstport $VXPORT | | | ||
| # | | | | | | | | | ||
| # | | + w1 (veth) | | | | + w1 (veth) | | | ||
| # | +--|----------------------------+ | | +--|----------------------------+ | | ||
| # | | | | | | | ||
| # | +--|----------------------------+ | | +--|----------------------------+ | | ||
| # | | | VW2 (vrf) | | | | | VW2 (vrf) | | | ||
| # | | + w2 (veth) | | | | + w2 (veth) | | | ||
| # | | 192.0.2.3/28 | | | | 192.0.2.4/28 | | | ||
| # | +-------------------------------+ | | +-------------------------------+ | | ||
| # +-----------------------------------+ +-----------------------------------+ | ||
|
|
||
| : ${VXPORT:=4789} | ||
| export VXPORT | ||
|
|
||
| : ${ALL_TESTS:=" | ||
| "} | ||
|
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| NUM_NETIFS=6 | ||
| source lib.sh | ||
|
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||
| h1_create() | ||
| { | ||
| simple_if_init $h1 192.0.2.1/28 | ||
| tc qdisc add dev $h1 clsact | ||
| } | ||
|
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||
| h1_destroy() | ||
| { | ||
| tc qdisc del dev $h1 clsact | ||
| simple_if_fini $h1 192.0.2.1/28 | ||
| } | ||
|
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||
| h2_create() | ||
| { | ||
| simple_if_init $h2 192.0.2.2/28 | ||
| tc qdisc add dev $h2 clsact | ||
| } | ||
|
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||
| h2_destroy() | ||
| { | ||
| tc qdisc del dev $h2 clsact | ||
| simple_if_fini $h2 192.0.2.2/28 | ||
| } | ||
|
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||
| rp1_set_addr() | ||
| { | ||
| ip address add dev $rp1 192.0.2.17/28 | ||
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| ip route add 192.0.2.32/28 nexthop via 192.0.2.18 | ||
| ip route add 192.0.2.48/28 nexthop via 192.0.2.18 | ||
| } | ||
|
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||
| rp1_unset_addr() | ||
| { | ||
| ip route del 192.0.2.48/28 nexthop via 192.0.2.18 | ||
| ip route del 192.0.2.32/28 nexthop via 192.0.2.18 | ||
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| ip address del dev $rp1 192.0.2.17/28 | ||
| } | ||
|
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| switch_create() | ||
| { | ||
| ip link add name br1 type bridge vlan_filtering 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 | ||
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||
| ip link set dev $rp1 up | ||
| rp1_set_addr | ||
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| ip link add name vx1 type vxlan id 1000 \ | ||
| local 192.0.2.17 dstport "$VXPORT" \ | ||
| nolearning noudpcsum tos inherit ttl 100 | ||
| ip link set dev vx1 up | ||
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| ip link set dev vx1 master br1 | ||
| ip link set dev $swp1 master br1 | ||
| ip link set dev $swp1 up | ||
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| ip link set dev $swp2 master br1 | ||
| ip link set dev $swp2 up | ||
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| bridge fdb append dev vx1 00:00:00:00:00:00 dst 192.0.2.34 self | ||
| bridge fdb append dev vx1 00:00:00:00:00:00 dst 192.0.2.50 self | ||
| } | ||
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| switch_destroy() | ||
| { | ||
| rp1_unset_addr | ||
| ip link set dev $rp1 down | ||
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| bridge fdb del dev vx1 00:00:00:00:00:00 dst 192.0.2.50 self | ||
| bridge fdb del dev vx1 00:00:00:00:00:00 dst 192.0.2.34 self | ||
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| ip link set dev vx1 nomaster | ||
| ip link set dev vx1 down | ||
| ip link del dev vx1 | ||
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| ip link set dev $swp2 down | ||
| ip link set dev $swp2 nomaster | ||
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| ip link set dev $swp1 down | ||
| ip link set dev $swp1 nomaster | ||
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| ip link set dev br1 down | ||
| ip link del dev br1 | ||
| } | ||
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| vrp2_create() | ||
| { | ||
| simple_if_init $rp2 192.0.2.18/28 | ||
| __simple_if_init v1 v$rp2 192.0.2.33/28 | ||
| __simple_if_init v3 v$rp2 192.0.2.49/28 | ||
| tc qdisc add dev v1 clsact | ||
| } | ||
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| vrp2_destroy() | ||
| { | ||
| tc qdisc del dev v1 clsact | ||
| __simple_if_fini v3 192.0.2.49/28 | ||
| __simple_if_fini v1 192.0.2.33/28 | ||
| simple_if_fini $rp2 192.0.2.18/28 | ||
| } | ||
|
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| ns_init_common() | ||
| { | ||
| local in_if=$1; shift | ||
| local in_addr=$1; shift | ||
| local other_in_addr=$1; shift | ||
| local nh_addr=$1; shift | ||
| local host_addr=$1; shift | ||
|
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| ip link set dev $in_if up | ||
| ip address add dev $in_if $in_addr/28 | ||
| tc qdisc add dev $in_if clsact | ||
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| ip link add name br2 type bridge vlan_filtering 0 | ||
| ip link set dev br2 up | ||
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| ip link add name w1 type veth peer name w2 | ||
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| ip link set dev w1 master br2 | ||
| ip link set dev w1 up | ||
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| ip link add name vx2 type vxlan id 1000 local $in_addr dstport "$VXPORT" | ||
| ip link set dev vx2 up | ||
| bridge fdb append dev vx2 00:00:00:00:00:00 dst 192.0.2.17 self | ||
| bridge fdb append dev vx2 00:00:00:00:00:00 dst $other_in_addr self | ||
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| ip link set dev vx2 master br2 | ||
| tc qdisc add dev vx2 clsact | ||
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| simple_if_init w2 $host_addr/28 | ||
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| ip route add 192.0.2.16/28 nexthop via $nh_addr | ||
| ip route add $other_in_addr/32 nexthop via $nh_addr | ||
| } | ||
| export -f ns_init_common | ||
|
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| ns1_create() | ||
| { | ||
| ip netns add ns1 | ||
| ip link set dev v2 netns ns1 | ||
| in_ns ns1 \ | ||
| ns_init_common v2 192.0.2.34 192.0.2.50 192.0.2.33 192.0.2.3 | ||
| } | ||
|
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| ns1_destroy() | ||
| { | ||
| ip netns exec ns1 ip link set dev v2 netns 1 | ||
| ip netns del ns1 | ||
| } | ||
|
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| ns2_create() | ||
| { | ||
| ip netns add ns2 | ||
| ip link set dev v4 netns ns2 | ||
| in_ns ns2 \ | ||
| ns_init_common v4 192.0.2.50 192.0.2.34 192.0.2.49 192.0.2.4 | ||
| } | ||
|
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| ns2_destroy() | ||
| { | ||
| ip netns exec ns2 ip link set dev v4 netns 1 | ||
| ip netns del ns2 | ||
| } | ||
|
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| setup_prepare() | ||
| { | ||
| h1=${NETIFS[p1]} | ||
| swp1=${NETIFS[p2]} | ||
|
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| swp2=${NETIFS[p3]} | ||
| h2=${NETIFS[p4]} | ||
|
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| rp1=${NETIFS[p5]} | ||
| rp2=${NETIFS[p6]} | ||
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| vrf_prepare | ||
| forwarding_enable | ||
|
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| h1_create | ||
| h2_create | ||
| switch_create | ||
|
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| ip link add name v1 type veth peer name v2 | ||
| ip link add name v3 type veth peer name v4 | ||
| vrp2_create | ||
| ns1_create | ||
| ns2_create | ||
| } | ||
|
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| cleanup() | ||
| { | ||
| pre_cleanup | ||
|
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| ns2_destroy | ||
| ns1_destroy | ||
| vrp2_destroy | ||
| ip link del dev v3 | ||
| ip link del dev v1 | ||
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| switch_destroy | ||
| h2_destroy | ||
| h1_destroy | ||
|
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| forwarding_restore | ||
| vrf_cleanup | ||
| } | ||
|
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| test_all() | ||
| { | ||
| echo "Running tests with UDP port $VXPORT" | ||
| tests_run | ||
| } | ||
|
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| trap cleanup EXIT | ||
|
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| setup_prepare | ||
| setup_wait | ||
| test_all | ||
|
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| exit $EXIT_STATUS |