Quellcode-Bibliothek router_bridge.sh   Sprache: Shell

#!/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_remaster
 ping_ipv4
 ping_ipv6
 config_remove_pvid
 ping_ipv4_fails
 ping_ipv6_fails
 config_add_pvid
 ping_ipv4
 ping_ipv6
 config_late_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_remaster()
{
 log_info "Remaster bridge slave"

 ip link set dev $swp1 nomaster
 sleep 2
 ip link set dev $swp1 master 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
}

config_late_pvid()
{
 log_info "Add bridge PVID after enslaving port"

 ip link set dev $swp1 nomaster
 ip link set dev br1 type bridge vlan_default_pvid 0
 sleep 2
 ip link set dev $swp1 master br1
 ip link set dev br1 type bridge vlan_default_pvid 1
}

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