#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
# +---------------------+ +---------------------+
# | H1 | | H2 |
# | + $h1 | | $h2 + |
# | | 192.0.2.1/28 | | 192.0.2.2/28 | |
# +-----|---------------+ +---------------|-----+
# | |
# +-----|-------------------------------------------------------------|-----+
# | SW o--> mirror | |
# | +---|-------------------------------------------------------------|---+ |
# | | + $swp1 BR $swp2 + | |
# | +---------------------------------------------------------------------+ |
# | |
# | +---------------------------------------------------------------------+ |
# | | OL + gt6 (ip6gretap) + gt4 (gretap) | |
# | | : loc=2001:db8:2::1 : loc=192.0.2.129 | |
# | | : rem=2001:db8:2::2 : rem=192.0.2.130 | |
# | | : ttl=100 : ttl=100 | |
# | | : tos=inherit : tos=inherit | |
# | +-------------------------:--|-------------------:--|-----------------+ |
# | : | : | |
# | +-------------------------:--|-------------------:--|-----------------+ |
# | | UL : |,---------------------' | |
# | | + $swp3 : || : | |
# | | | 192.0.2.129/28 : vv : | |
# | | | 2001:db8:2::1/64 : + ul (dummy) : | |
# | +---|---------------------:----------------------:--------------------+ |
# +-----|---------------------:----------------------:----------------------+
# | : :
# +-----|---------------------:----------------------:----------------------+
# | H3 + $h3 + h3-gt6 (ip6gretap) + h3-gt4 (gretap) |
# | 192.0.2.130/28 loc=2001:db8:2::2 loc=192.0.2.130 |
# | 2001:db8:2::2/64 rem=2001:db8:2::1 rem=192.0.2.129 |
# | ttl=100 ttl=100 |
# | tos=inherit tos=inherit |
# | |
# +-------------------------------------------------------------------------+
#
# This tests mirroring to gretap and ip6gretap configured in an overlay /
# underlay manner, i.e. with a bound dummy device that marks underlay VRF where
# the encapsulated packed should be routed.
ALL_TESTS="
test_gretap
test_ip6gretap
"
NUM_NETIFS=6
source lib.sh
source mirror_lib.sh
source mirror_gre_lib.sh
h1_create()
{
simple_if_init $h1 192.0.2.1/28
}
h1_destroy()
{
simple_if_fini $h1 192.0.2.1/28
}
h2_create()
{
simple_if_init $h2 192.0.2.2/28
}
h2_destroy()
{
simple_if_fini $h2 192.0.2.2/28
}
h3_create()
{
simple_if_init $h3 192.0.2.130/28 2001:db8:2::2/64
tunnel_create h3-gt4 gretap 192.0.2.130 192.0.2.129
ip link set h3-gt4 vrf v$h3
matchall_sink_create h3-gt4
tunnel_create h3-gt6 ip6gretap 2001:db8:2::2 2001:db8:2::1
ip link set h3-gt6 vrf v$h3
matchall_sink_create h3-gt6
}
h3_destroy()
{
tunnel_destroy h3-gt6
tunnel_destroy h3-gt4
simple_if_fini $h3 192.0.2.130/28 2001:db8:2::2/64
}
switch_create()
{
# Bridge between H1 and H2.
ip link add name br1 type bridge vlan_filtering 1
ip link set dev br1 addrgenmode none
ip link set dev br1 up
ip link set dev $swp1 master br1
ip link set dev $swp1 up
ip link set dev $swp2 master br1
ip link set dev $swp2 up
tc qdisc add dev $swp1 clsact
# Underlay.
simple_if_init $swp3 192.0.2.129/28 2001:db8:2::1/64
ip link add name ul type dummy
ip link set dev ul master v$swp3
ip link set dev ul up
# Overlay.
vrf_create vrf-ol
ip link set dev vrf-ol up
tunnel_create gt4 gretap 192.0.2.129 192.0.2.130 \
ttl 100 tos inherit dev ul
ip link set dev gt4 master vrf-ol
ip link set dev gt4 up
tunnel_create gt6 ip6gretap 2001:db8:2::1 2001:db8:2::2 \
ttl 100 tos inherit dev ul allow-localremote
ip link set dev gt6 master vrf-ol
ip link set dev gt6 up
}
switch_destroy()
{
vrf_destroy vrf-ol
tunnel_destroy gt6
tunnel_destroy gt4
simple_if_fini $swp3 192.0.2.129/28 2001:db8:2::1/64
ip link del dev ul
tc qdisc del dev $swp1 clsact
ip link set dev $swp1 down
ip link set dev $swp2 down
ip link del dev br1
}
setup_prepare()
{
h1=${NETIFS[p1]}
swp1=${NETIFS[p2]}
swp2=${NETIFS[p3]}
h2=${NETIFS[p4]}
swp3=${NETIFS[p5]}
h3=${NETIFS[p6]}
vrf_prepare
h1_create
h2_create
h3_create
switch_create
}
cleanup()
{
pre_cleanup
switch_destroy
h3_destroy
h2_destroy
h1_destroy
vrf_cleanup
}
test_gretap()
{
full_test_span_gre_dir gt4 ingress 8 0 "mirror to gretap w/ UL"
full_test_span_gre_dir gt4 egress 0 8 "mirror to gretap w/ UL"
}
test_ip6gretap()
{
full_test_span_gre_dir gt6 ingress 8 0 "mirror to ip6gretap w/ UL"
full_test_span_gre_dir gt6 egress 0 8 "mirror to ip6gretap w/ UL"
}
trap cleanup EXIT
setup_prepare
setup_wait
tests_run
exit $EXIT_STATUS
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