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#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
# This test uses standard topology for testing gretap. See
# mirror_gre_topo_lib.sh for more details.
#
# Test for "tc action mirred egress mirror" when the device to mirror to is a
# gretap or ip6gretap netdevice. Expect that the packets come out encapsulated,
# and another gretap / ip6gretap netdevice is then capable of decapsulating the
# traffic. Test that the payload is what is expected (ICMP ping request or
# reply, depending on test).
NUM_NETIFS=6
source lib.sh
source mirror_lib.sh
source mirror_gre_lib.sh
source mirror_gre_topo_lib.sh
setup_prepare()
{
h1=${NETIFS[p1]}
swp1=${NETIFS[p2]}
swp2=${NETIFS[p3]}
h2=${NETIFS[p4]}
swp3=${NETIFS[p5]}
h3=${NETIFS[p6]}
vrf_prepare
mirror_gre_topo_create
ip address add dev $swp3 192.0.2.129/28
ip address add dev $h3 192.0.2.130/28
ip address add dev $swp3 2001:db8:2::1/64
ip address add dev $h3 2001:db8:2::2/64
}
cleanup()
{
pre_cleanup
ip address del dev $h3 2001:db8:2::2/64
ip address del dev $swp3 2001:db8:2::1/64
ip address del dev $h3 192.0.2.130/28
ip address del dev $swp3 192.0.2.129/28
mirror_gre_topo_destroy
vrf_cleanup
}
test_span_gre_mac()
{
local tundev=$1; shift
local direction=$1; shift
local prot=$1; shift
local what=$1; shift
local swp3mac=$(mac_get $swp3)
local h3mac=$(mac_get $h3)
RET=0
mirror_install $swp1 $direction $tundev "matchall $tcflags"
tc qdisc add dev $h3 clsact
tc filter add dev $h3 ingress pref 77 prot $prot \
flower ip_proto 0x2f src_mac $swp3mac dst_mac $h3mac \
action pass
mirror_test v$h1 192.0.2.1 192.0.2.2 $h3 77 10
tc filter del dev $h3 ingress pref 77
tc qdisc del dev $h3 clsact
mirror_uninstall $swp1 $direction
log_test "$direction $what: envelope MAC ($tcflags)"
}
test_two_spans()
{
RET=0
mirror_install $swp1 ingress gt4 "matchall $tcflags"
mirror_install $swp1 egress gt6 "matchall $tcflags"
quick_test_span_gre_dir gt4 ingress
quick_test_span_gre_dir gt6 egress
mirror_uninstall $swp1 ingress
fail_test_span_gre_dir gt4 ingress
quick_test_span_gre_dir gt6 egress
mirror_install $swp1 ingress gt4 "matchall $tcflags"
mirror_uninstall $swp1 egress
quick_test_span_gre_dir gt4 ingress
fail_test_span_gre_dir gt6 egress
mirror_uninstall $swp1 ingress
log_test "two simultaneously configured mirrors ($tcflags)"
}
test_all()
{
slow_path_trap_install $swp1 ingress
slow_path_trap_install $swp1 egress
full_test_span_gre_dir gt4 ingress 8 0 "mirror to gretap"
full_test_span_gre_dir gt6 ingress 8 0 "mirror to ip6gretap"
full_test_span_gre_dir gt4 egress 0 8 "mirror to gretap"
full_test_span_gre_dir gt6 egress 0 8 "mirror to ip6gretap"
test_span_gre_mac gt4 ingress ip "mirror to gretap"
test_span_gre_mac gt6 ingress ipv6 "mirror to ip6gretap"
test_span_gre_mac gt4 egress ip "mirror to gretap"
test_span_gre_mac gt6 egress ipv6 "mirror to ip6gretap"
test_two_spans
slow_path_trap_uninstall $swp1 egress
slow_path_trap_uninstall $swp1 ingress
}
trap cleanup EXIT
setup_prepare
setup_wait
tcflags="skip_hw"
test_all
if ! tc_offload_check; then
echo "WARN: Could not test offloaded functionality"
else
tcflags="skip_sw"
test_all
fi
exit $EXIT_STATUS
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