Files
linux/tools/testing/selftests/net/forwarding/router_bridge.sh
Petr Machata c7203a2981 selftests: router_bridge: Add tests to remove and add PVID
This test relies on PVID being configured on the bridge itself. Thus when
it is deconfigured, the system should lose the ability to forward traffic.
Later when it is added again, the ability to forward traffic should be
regained. Add tests to exercise these configuration changes and verify
results.

Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Danielle Ratson <danieller@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-07-14 10:20:15 +01:00

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#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
# +------------------------+ +----------------------+
# | H1 (vrf) | | H2 (vrf) |
# | + $h1 | | + $h2 |
# | | 192.0.2.1/28 | | | 192.0.2.130/28 |
# | | 2001:db8:1::1/64 | | | 2001:db8:2::2/64 |
# | | | | | |
# +----|-------------------+ +--|-------------------+
# | |
# +----|--------------------------------------------------|-------------------+
# | SW | | |
# | +--|-----------------------------+ + $swp2 |
# | | + $swp1 BR1 (802.1q) | 192.0.2.129/28 |
# | | 192.0.2.2/28 | 2001:db8:2::1/64 |
# | | 2001:db8:1::1/64 | |
# | | | |
# | +--------------------------------+ |
# +---------------------------------------------------------------------------+
ALL_TESTS="
ping_ipv4
ping_ipv6
config_remove_pvid
ping_ipv4_fails
ping_ipv6_fails
config_add_pvid
ping_ipv4
ping_ipv6
"
NUM_NETIFS=4
source lib.sh
h1_create()
{
simple_if_init $h1 192.0.2.1/28 2001:db8:1::1/64
ip -4 route add 192.0.2.128/28 vrf v$h1 nexthop via 192.0.2.2
ip -6 route add 2001:db8:2::/64 vrf v$h1 nexthop via 2001:db8:1::2
}
h1_destroy()
{
ip -6 route del 2001:db8:2::/64 vrf v$h1
ip -4 route del 192.0.2.128/28 vrf v$h1
simple_if_fini $h1 192.0.2.1/28 2001:db8:1::1/64
}
h2_create()
{
simple_if_init $h2 192.0.2.130/28 2001:db8:2::2/64
ip -4 route add 192.0.2.0/28 vrf v$h2 nexthop via 192.0.2.129
ip -6 route add 2001:db8:1::/64 vrf v$h2 nexthop via 2001:db8:2::1
}
h2_destroy()
{
ip -6 route del 2001:db8:1::/64 vrf v$h2
ip -4 route del 192.0.2.0/28 vrf v$h2
simple_if_fini $h2 192.0.2.130/28 2001:db8:2::2/64
}
router_create()
{
ip link add name br1 address $(mac_get $swp1) \
type bridge vlan_filtering 1
ip link set dev br1 up
ip link set dev $swp1 master br1
ip link set dev $swp1 up
__addr_add_del br1 add 192.0.2.2/28 2001:db8:1::2/64
ip link set dev $swp2 up
__addr_add_del $swp2 add 192.0.2.129/28 2001:db8:2::1/64
}
router_destroy()
{
__addr_add_del $swp2 del 192.0.2.129/28 2001:db8:2::1/64
ip link set dev $swp2 down
__addr_add_del br1 del 192.0.2.2/28 2001:db8:1::2/64
ip link set dev $swp1 down
ip link set dev $swp1 nomaster
ip link del dev br1
}
config_remove_pvid()
{
log_info "Remove PVID from the bridge"
bridge vlan add dev br1 vid 1 self
sleep 2
}
config_add_pvid()
{
log_info "Add PVID to the bridge"
bridge vlan add dev br1 vid 1 self pvid untagged
sleep 2
}
setup_prepare()
{
h1=${NETIFS[p1]}
swp1=${NETIFS[p2]}
swp2=${NETIFS[p3]}
h2=${NETIFS[p4]}
vrf_prepare
h1_create
h2_create
router_create
forwarding_enable
}
cleanup()
{
pre_cleanup
forwarding_restore
router_destroy
h2_destroy
h1_destroy
vrf_cleanup
}
ping_ipv4()
{
ping_test $h1 192.0.2.130
}
ping_ipv6()
{
ping6_test $h1 2001:db8:2::2
}
ping_ipv4_fails()
{
ping_test_fails $h1 192.0.2.130
}
ping_ipv6_fails()
{
ping6_test_fails $h1 2001:db8:2::2
}
trap cleanup EXIT
setup_prepare
setup_wait
tests_run
exit $EXIT_STATUS