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Commit a9b33b20 authored by Petr Machata's avatar Petr Machata Committed by David S. Miller
Browse files

selftests: forwarding: Test mirror-to-gretap w/ UL team 



Test for "tc action mirred egress mirror" that mirrors to gretap when
the underlay route points at a VLAN-aware bridge (802.1q), and the
traffic egresses the bridge through a team device. Test upping and
downing individual team device slaves and verify the traffic flows as
expected.

Signed-off-by: default avatarPetr Machata <petrm@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent ca70a562

tools/testing/selftests/net/forwarding/mirror_gre_bridge_1q_lag.sh

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+283 −0
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#!/bin/bash

# SPDX-License-Identifier: GPL-2.0



# Test for "tc action mirred egress mirror" when the underlay route points at a

# bridge device with vlan filtering (802.1q), and the egress device is a team

# device.

#

# +----------------------+                             +----------------------+

# | H1                   |                             |                   H2 |

# |     + $h1.333        |                             |        $h1.555 +     |

# |     | 192.0.2.1/28   |                             |  192.0.2.18/28 |     |

# +-----|----------------+                             +----------------|-----+

#       |                               $h1                             |

#       +--------------------------------+------------------------------+

#                                        |

# +--------------------------------------|------------------------------------+

# | SW                                   o---> mirror                         |

# |                                      |                                    |

# |     +--------------------------------+------------------------------+     |

# |     |                              $swp1                            |     |

# |     + $swp1.333                                           $swp1.555 +     |

# |       192.0.2.2/28                                    192.0.2.17/28       |

# |                                                                           |

# | +-----------------------------------------------------------------------+ |

# | |                        BR1 (802.1q)                                   | |

# | |     + lag (team)       192.0.2.129/28                                 | |

# | |    / \                 2001:db8:2::1/64                               | |

# | +---/---\---------------------------------------------------------------+ |

# |    /     \                                                            ^   |

# |   |       \                                        + gt4 (gretap)     |   |

# |   |        \                                         loc=192.0.2.129  |   |

# |   |         \                                        rem=192.0.2.130 -+   |

# |   |          \                                       ttl=100              |

# |   |           \                                      tos=inherit          |

# |   |            \                                                          |

# |   |             \_________________________________                        |

# |   |                                               \                       |

# |   + $swp3                                          + $swp4                |

# +---|------------------------------------------------|----------------------+

#     |                                                |

# +---|----------------------+                     +---|----------------------+

# |   + $h3               H3 |                     |   + $h4               H4 |

# |     192.0.2.130/28       |                     |     192.0.2.130/28       |

# |     2001:db8:2::2/64     |                     |     2001:db8:2::2/64     |

# +--------------------------+                     +--------------------------+



ALL_TESTS="

	test_mirror_gretap_first

	test_mirror_gretap_second

"



NUM_NETIFS=6

source lib.sh

source mirror_lib.sh

source mirror_gre_lib.sh



require_command $ARPING



vlan_host_create()

{

	local if_name=$1; shift

	local vid=$1; shift

	local vrf_name=$1; shift

	local ips=("${@}")



	vrf_create $vrf_name

	ip link set dev $vrf_name up

	vlan_create $if_name $vid $vrf_name "${ips[@]}"

}



vlan_host_destroy()

{

	local if_name=$1; shift

	local vid=$1; shift

	local vrf_name=$1; shift



	vlan_destroy $if_name $vid

	ip link set dev $vrf_name down

	vrf_destroy $vrf_name

}



h1_create()

{

	vlan_host_create $h1 333 vrf-h1 192.0.2.1/28

	ip -4 route add 192.0.2.16/28 vrf vrf-h1 nexthop via 192.0.2.2

}



h1_destroy()

{

	ip -4 route del 192.0.2.16/28 vrf vrf-h1

	vlan_host_destroy $h1 333 vrf-h1

}



h2_create()

{

	vlan_host_create $h1 555 vrf-h2 192.0.2.18/28

	ip -4 route add 192.0.2.0/28 vrf vrf-h2 nexthop via 192.0.2.17

}



h2_destroy()

{

	ip -4 route del 192.0.2.0/28 vrf vrf-h2

	vlan_host_destroy $h1 555 vrf-h2

}



h3_create()

{

	simple_if_init $h3 192.0.2.130/28

	tc qdisc add dev $h3 clsact

}



h3_destroy()

{

	tc qdisc del dev $h3 clsact

	simple_if_fini $h3 192.0.2.130/28

}



h4_create()

{

	simple_if_init $h4 192.0.2.130/28

	tc qdisc add dev $h4 clsact

}



h4_destroy()

{

	tc qdisc del dev $h4 clsact

	simple_if_fini $h4 192.0.2.130/28

}



switch_create()

{

	ip link set dev $swp1 up

	tc qdisc add dev $swp1 clsact

	vlan_create $swp1 333 "" 192.0.2.2/28

	vlan_create $swp1 555 "" 192.0.2.17/28



	tunnel_create gt4 gretap 192.0.2.129 192.0.2.130 \

		      ttl 100 tos inherit



	ip link set dev $swp3 up

	ip link set dev $swp4 up



	ip link add name br1 type bridge vlan_filtering 1

	ip link set dev br1 up

	__addr_add_del br1 add 192.0.2.129/32

	ip -4 route add 192.0.2.130/32 dev br1



	team_create lag loadbalance $swp3 $swp4

	ip link set dev lag master br1

}



switch_destroy()

{

	ip link set dev lag nomaster

	team_destroy lag



	ip -4 route del 192.0.2.130/32 dev br1

	__addr_add_del br1 del 192.0.2.129/32

	ip link set dev br1 down

	ip link del dev br1



	ip link set dev $swp4 down

	ip link set dev $swp3 down



	tunnel_destroy gt4



	vlan_destroy $swp1 555

	vlan_destroy $swp1 333

	tc qdisc del dev $swp1 clsact

	ip link set dev $swp1 down

}



setup_prepare()

{

	h1=${NETIFS[p1]}

	swp1=${NETIFS[p2]}



	swp3=${NETIFS[p3]}

	h3=${NETIFS[p4]}



	swp4=${NETIFS[p5]}

	h4=${NETIFS[p6]}



	vrf_prepare



	ip link set dev $h1 up

	h1_create

	h2_create

	h3_create

	h4_create

	switch_create



	trap_install $h3 ingress

	trap_install $h4 ingress

}



cleanup()

{

	pre_cleanup



	trap_uninstall $h4 ingress

	trap_uninstall $h3 ingress



	switch_destroy

	h4_destroy

	h3_destroy

	h2_destroy

	h1_destroy

	ip link set dev $h1 down



	vrf_cleanup

}



test_lag_slave()

{

	local host_dev=$1; shift

	local up_dev=$1; shift

	local down_dev=$1; shift

	local what=$1; shift



	RET=0



	mirror_install $swp1 ingress gt4 \

		       "proto 802.1q flower vlan_id 333 $tcflags"



	# Test connectivity through $up_dev when $down_dev is set down.

	ip link set dev $down_dev down

	setup_wait_dev $up_dev

	setup_wait_dev $host_dev

	$ARPING -I br1 192.0.2.130 -qfc 1

	sleep 2

	mirror_test vrf-h1 192.0.2.1 192.0.2.18 $host_dev 1 10



	# Test lack of connectivity when both slaves are down.

	ip link set dev $up_dev down

	sleep 2

	mirror_test vrf-h1 192.0.2.1 192.0.2.18 $h3 1 0

	mirror_test vrf-h1 192.0.2.1 192.0.2.18 $h4 1 0



	ip link set dev $up_dev up

	ip link set dev $down_dev up

	mirror_uninstall $swp1 ingress



	log_test "$what ($tcflags)"

}



test_mirror_gretap_first()

{

	test_lag_slave $h3 $swp3 $swp4 "mirror to gretap: LAG first slave"

}



test_mirror_gretap_second()

{

	test_lag_slave $h4 $swp4 $swp3 "mirror to gretap: LAG second slave"

}



test_all()

{

	slow_path_trap_install $swp1 ingress

	slow_path_trap_install $swp1 egress



	tests_run



	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