Quelle  tc_mpls_l2vpn.sh   Sprache: Shell

#!/bin/bash
# SPDX-License-Identifier: GPL-2.0

# +-----------------------+
# | H1 (v$h1)             |
# | 192.0.2.1/24          |
# | 2001:db8::1/124       |
# |                 + $h1 |
# +-----------------|-----+
#                   |
#                   | (Plain Ethernet traffic)
#                   |
# +-----------------|-----------------------------------------+
# | LER1            + $edge1                                  |
# |                     -ingress:                             |
# |                       -encapsulate Ethernet into MPLS     |
# |                       -add outer Ethernet header          |
# |                       -redirect to $mpls1 (egress)        |
# |                                                           |
# |                 + $mpls1                                  |
# |                 |   -ingress:                             |
# |                 |     -remove outer Ethernet header       |
# |                 |     -remove MPLS header                 |
# |                 |     -redirect to $edge1 (egress)        |
# +-----------------|-----------------------------------------+
#                   |
#                   | (Ethernet over MPLS traffic)
#                   |
# +-----------------|-----------------------------------------+
# | LER2            + $mpls2                                  |
# |                     -ingress:                             |
# |                       -remove outer Ethernet header       |
# |                       -remove MPLS header                 |
# |                       -redirect to $edge2 (egress)        |
# |                                                           |
# |                 + $edge2                                  |
# |                 |   -ingress:                             |
# |                 |     -encapsulate Ethernet into MPLS     |
# |                 |     -add outer Ethernet header          |
# |                 |     -redirect to $mpls2 (egress)        |
# +-----------------|-----------------------------------------|
#                   |
#                   | (Plain Ethernet traffic)
#                   |
# +-----------------|-----+
# | H2 (v$h2)       |     |
# |                 + $h2 |
# | 192.0.2.2/24          |
# | 2001:db8::2/124       |
# +-----------------------+
#
# LER1 and LER2 logically represent two different routers. However, no VRF is
# created for them, as they don't do any IP routing.

ALL_TESTS="mpls_forward_eth"
NUM_NETIFS=6
source lib.sh

h1_create()
{
 simple_if_init $h1 192.0.2.1/24 2001:db8::1/124
}

h1_destroy()
{
 simple_if_fini $h1 192.0.2.1/24 2001:db8::1/124
}

h2_create()
{
 simple_if_init $h2 192.0.2.2/24 2001:db8::2/124
}

h2_destroy()
{
 simple_if_fini $h2 192.0.2.2/24 2001:db8::2/124
}

ler1_create()
{
 tc qdisc add dev $edge1 ingress
 tc filter add dev $edge1 ingress                            \
    matchall                                                 \
    action mpls mac_push label 102                           \
    action vlan push_eth dst_mac $mpls2mac src_mac $mpls1mac \
    action mirred egress redirect dev $mpls1
 ip link set dev $edge1 up

 tc qdisc add dev $mpls1 ingress
 tc filter add dev $mpls1 ingress            \
    protocol mpls_uc                         \
    flower mpls_label 101                    \
    action vlan pop_eth                      \
    action mpls pop protocol teb             \
    action mirred egress redirect dev $edge1
 ip link set dev $mpls1 up
}

ler1_destroy()
{
 ip link set dev $mpls1 down
 tc qdisc del dev $mpls1 ingress

 ip link set dev $edge1 down
 tc qdisc del dev $edge1 ingress
}

ler2_create()
{
 tc qdisc add dev $edge2 ingress
 tc filter add dev $edge2 ingress                            \
    matchall                                                 \
    action mpls mac_push label 101                           \
    action vlan push_eth dst_mac $mpls1mac src_mac $mpls2mac \
    action mirred egress redirect dev $mpls2
 ip link set dev $edge2 up

 tc qdisc add dev $mpls2 ingress
 tc filter add dev $mpls2 ingress            \
    protocol mpls_uc                         \
    flower mpls_label 102                    \
    action vlan pop_eth                      \
    action mpls pop protocol teb             \
    action mirred egress redirect dev $edge2
 ip link set dev $mpls2 up
}

ler2_destroy()
{
 ip link set dev $mpls2 down
 tc qdisc del dev $mpls2 ingress

 ip link set dev $edge2 down
 tc qdisc del dev $edge2 ingress
}

mpls_forward_eth()
{
 ping_test $h1 192.0.2.2
 ping6_test $h1 2001:db8::2
}

setup_prepare()
{
 h1=${NETIFS[p1]}
 edge1=${NETIFS[p2]}

 mpls1=${NETIFS[p3]}
 mpls2=${NETIFS[p4]}

 edge2=${NETIFS[p5]}
 h2=${NETIFS[p6]}

 mpls1mac=$(mac_get $mpls1)
 mpls2mac=$(mac_get $mpls2)

 vrf_prepare

 h1_create
 h2_create
 ler1_create
 ler2_create
}

cleanup()
{
 pre_cleanup

 ler2_destroy
 ler1_destroy
 h2_destroy
 h1_destroy

 vrf_cleanup
}

trap cleanup EXIT

setup_prepare
setup_wait

tests_run

tc_offload_check
if [[ $? -ne 0 ]]; then
 log_info "Could not test offloaded functionality"
else
 tcflags="skip_sw"
 tests_run
fi

exit $EXIT_STATUS