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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>
This commit is contained in:
Petr Machata
David S. Miller
parent
d1038cd0f6
commit
fd64d5a2e3
296
tools/testing/selftests/net/forwarding/vxlan_bridge_1d.sh
Executable file
296
tools/testing/selftests/net/forwarding/vxlan_bridge_1d.sh
Executable file
@ -0,0 +1,296 @@
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#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# +--------------------+ +----------------------+
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# | H1 (vrf) | | H2 (vrf) |
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# | + $h1 | | + $h2 |
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# | | 192.0.2.1/28 | | | 192.0.2.2/28 |
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# +----|---------------+ +--|-------------------+
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# | |
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# +----|--------------------------------------------------|-------------------+
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# | SW | | |
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# | +--|--------------------------------------------------|-----------------+ |
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# | | + $swp1 BR1 (802.1d) + $swp2 | |
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# | | | |
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# | | + vx1 (vxlan) | |
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# | | local 192.0.2.17 | |
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# | | remote 192.0.2.34 192.0.2.50 | |
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# | | id 1000 dstport $VXPORT | |
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# | +-----------------------------------------------------------------------+ |
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# | |
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# | 192.0.2.32/28 via 192.0.2.18 |
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# | 192.0.2.48/28 via 192.0.2.18 |
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# | |
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# | + $rp1 |
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# | | 192.0.2.17/28 |
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# +----|----------------------------------------------------------------------+
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# |
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# +----|--------------------------------------------------------+
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# | | VRP2 (vrf) |
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# | + $rp2 |
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# | 192.0.2.18/28 |
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# | | (maybe) HW
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# =============================================================================
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# | | (likely) SW
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# | + v1 (veth) + v3 (veth) |
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# | | 192.0.2.33/28 | 192.0.2.49/28 |
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# +----|---------------------------------------|----------------+
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# | |
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# +----|------------------------------+ +----|------------------------------+
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# | + v2 (veth) NS1 (netns) | | + v4 (veth) NS2 (netns) |
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# | 192.0.2.34/28 | | 192.0.2.50/28 |
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# | | | |
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# | 192.0.2.16/28 via 192.0.2.33 | | 192.0.2.16/28 via 192.0.2.49 |
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# | 192.0.2.50/32 via 192.0.2.33 | | 192.0.2.34/32 via 192.0.2.49 |
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# | | | |
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# | +-------------------------------+ | | +-------------------------------+ |
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# | | BR2 (802.1d) | | | | BR2 (802.1d) | |
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# | | + vx2 (vxlan) | | | | + vx2 (vxlan) | |
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# | | local 192.0.2.34 | | | | local 192.0.2.50 | |
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# | | remote 192.0.2.17 | | | | remote 192.0.2.17 | |
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# | | remote 192.0.2.50 | | | | remote 192.0.2.34 | |
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# | | id 1000 dstport $VXPORT | | | | id 1000 dstport $VXPORT | |
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# | | | | | | | |
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# | | + w1 (veth) | | | | + w1 (veth) | |
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# | +--|----------------------------+ | | +--|----------------------------+ |
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# | | | | | |
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# | +--|----------------------------+ | | +--|----------------------------+ |
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# | | | VW2 (vrf) | | | | | VW2 (vrf) | |
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# | | + w2 (veth) | | | | + w2 (veth) | |
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# | | 192.0.2.3/28 | | | | 192.0.2.4/28 | |
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# | +-------------------------------+ | | +-------------------------------+ |
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# +-----------------------------------+ +-----------------------------------+
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: ${VXPORT:=4789}
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export VXPORT
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: ${ALL_TESTS:="
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"}
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NUM_NETIFS=6
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source lib.sh
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h1_create()
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{
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simple_if_init $h1 192.0.2.1/28
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tc qdisc add dev $h1 clsact
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}
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h1_destroy()
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{
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tc qdisc del dev $h1 clsact
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simple_if_fini $h1 192.0.2.1/28
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}
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h2_create()
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{
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simple_if_init $h2 192.0.2.2/28
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tc qdisc add dev $h2 clsact
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}
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h2_destroy()
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{
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tc qdisc del dev $h2 clsact
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simple_if_fini $h2 192.0.2.2/28
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}
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rp1_set_addr()
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{
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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
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ip route add 192.0.2.48/28 nexthop via 192.0.2.18
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}
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rp1_unset_addr()
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{
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ip route del 192.0.2.48/28 nexthop via 192.0.2.18
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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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}
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switch_create()
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{
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ip link add name br1 type bridge vlan_filtering 0 mcast_snooping 0
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# Make sure the bridge uses the MAC address of the local port and not
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# that of the VxLAN's device.
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ip link set dev br1 address $(mac_get $swp1)
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ip link set dev br1 up
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ip link set dev $rp1 up
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rp1_set_addr
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ip link add name vx1 type vxlan id 1000 \
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local 192.0.2.17 dstport "$VXPORT" \
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nolearning noudpcsum tos inherit ttl 100
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ip link set dev vx1 up
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ip link set dev vx1 master br1
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ip link set dev $swp1 master br1
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ip link set dev $swp1 up
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ip link set dev $swp2 master br1
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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
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bridge fdb append dev vx1 00:00:00:00:00:00 dst 192.0.2.50 self
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}
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switch_destroy()
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{
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rp1_unset_addr
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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
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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
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ip link set dev vx1 down
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ip link del dev vx1
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ip link set dev $swp2 down
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ip link set dev $swp2 nomaster
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ip link set dev $swp1 down
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ip link set dev $swp1 nomaster
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ip link set dev br1 down
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ip link del dev br1
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}
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vrp2_create()
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{
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simple_if_init $rp2 192.0.2.18/28
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__simple_if_init v1 v$rp2 192.0.2.33/28
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__simple_if_init v3 v$rp2 192.0.2.49/28
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tc qdisc add dev v1 clsact
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}
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vrp2_destroy()
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{
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tc qdisc del dev v1 clsact
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__simple_if_fini v3 192.0.2.49/28
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__simple_if_fini v1 192.0.2.33/28
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simple_if_fini $rp2 192.0.2.18/28
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}
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ns_init_common()
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{
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local in_if=$1; shift
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local in_addr=$1; shift
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local other_in_addr=$1; shift
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local nh_addr=$1; shift
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local host_addr=$1; shift
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ip link set dev $in_if up
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ip address add dev $in_if $in_addr/28
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tc qdisc add dev $in_if clsact
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ip link add name br2 type bridge vlan_filtering 0
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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
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ip link set dev w1 up
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ip link add name vx2 type vxlan id 1000 local $in_addr dstport "$VXPORT"
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ip link set dev vx2 up
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bridge fdb append dev vx2 00:00:00:00:00:00 dst 192.0.2.17 self
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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
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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
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ip route add $other_in_addr/32 nexthop via $nh_addr
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}
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export -f ns_init_common
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ns1_create()
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{
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ip netns add ns1
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ip link set dev v2 netns ns1
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in_ns ns1 \
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ns_init_common v2 192.0.2.34 192.0.2.50 192.0.2.33 192.0.2.3
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}
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ns1_destroy()
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{
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ip netns exec ns1 ip link set dev v2 netns 1
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ip netns del ns1
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}
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ns2_create()
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{
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ip netns add ns2
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ip link set dev v4 netns ns2
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in_ns ns2 \
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ns_init_common v4 192.0.2.50 192.0.2.34 192.0.2.49 192.0.2.4
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}
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ns2_destroy()
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{
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ip netns exec ns2 ip link set dev v4 netns 1
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ip netns del ns2
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}
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setup_prepare()
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{
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h1=${NETIFS[p1]}
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swp1=${NETIFS[p2]}
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swp2=${NETIFS[p3]}
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h2=${NETIFS[p4]}
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rp1=${NETIFS[p5]}
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rp2=${NETIFS[p6]}
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vrf_prepare
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forwarding_enable
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h1_create
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h2_create
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switch_create
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ip link add name v1 type veth peer name v2
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ip link add name v3 type veth peer name v4
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vrp2_create
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ns1_create
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ns2_create
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}
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cleanup()
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{
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pre_cleanup
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ns2_destroy
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ns1_destroy
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vrp2_destroy
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ip link del dev v3
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ip link del dev v1
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switch_destroy
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h2_destroy
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h1_destroy
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forwarding_restore
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vrf_cleanup
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}
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test_all()
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{
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echo "Running tests with UDP port $VXPORT"
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tests_run
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}
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trap cleanup EXIT
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setup_prepare
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setup_wait
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test_all
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exit $EXIT_STATUS
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