net: Add tests for bonding and team address list management
Test that the bonding and team drivers clean up an underlying device's address lists (dev->uc, dev->mc) when the aggregated device is deleted. Test addition and removal of the LACPDU multicast address on underlying devices by the bonding driver. v2: * add lag_lib.sh to TEST_FILES v3: * extend bond_listen_lacpdu_multicast test to init_state up and down cases * remove some superfluous shell syntax and 'set dev ... up' commands Signed-off-by: Benjamin Poirier <bpoirier@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -19948,6 +19948,7 @@ S: Supported
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F: drivers/net/team/
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F: include/linux/if_team.h
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F: include/uapi/linux/if_team.h
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F: tools/testing/selftests/net/team/
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TECHNOLOGIC SYSTEMS TS-5500 PLATFORM SUPPORT
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M: "Savoir-faire Linux Inc." <kernel@savoirfairelinux.com>
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@ -13,6 +13,7 @@ TARGETS += damon
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TARGETS += drivers/dma-buf
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TARGETS += drivers/s390x/uvdevice
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TARGETS += drivers/net/bonding
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TARGETS += drivers/net/team
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TARGETS += efivarfs
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TARGETS += exec
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TARGETS += filesystems
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@ -1,6 +1,9 @@
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# SPDX-License-Identifier: GPL-2.0
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# Makefile for net selftests
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TEST_PROGS := bond-break-lacpdu-tx.sh
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TEST_PROGS := bond-break-lacpdu-tx.sh \
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dev_addr_lists.sh
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TEST_FILES := lag_lib.sh
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include ../../../lib.mk
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@ -1 +1,2 @@
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CONFIG_BONDING=y
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CONFIG_MACVLAN=y
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@ -0,0 +1,109 @@
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#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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#
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# Test bond device handling of addr lists (dev->uc, mc)
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#
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ALL_TESTS="
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bond_cleanup_mode1
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bond_cleanup_mode4
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bond_listen_lacpdu_multicast_case_down
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bond_listen_lacpdu_multicast_case_up
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"
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REQUIRE_MZ=no
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NUM_NETIFS=0
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lib_dir=$(dirname "$0")
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source "$lib_dir"/../../../net/forwarding/lib.sh
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source "$lib_dir"/lag_lib.sh
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destroy()
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{
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local ifnames=(dummy1 dummy2 bond1 mv0)
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local ifname
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for ifname in "${ifnames[@]}"; do
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ip link del "$ifname" &>/dev/null
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done
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}
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cleanup()
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{
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pre_cleanup
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destroy
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}
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# bond driver control paths vary between modes that have a primary slave
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# (bond_uses_primary()) and others. Test both kinds of modes.
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bond_cleanup_mode1()
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{
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RET=0
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test_LAG_cleanup "bonding" "active-backup"
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}
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bond_cleanup_mode4() {
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RET=0
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test_LAG_cleanup "bonding" "802.3ad"
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}
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bond_listen_lacpdu_multicast()
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{
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# Initial state of bond device, up | down
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local init_state=$1
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local lacpdu_mc="01:80:c2:00:00:02"
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ip link add dummy1 type dummy
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ip link add bond1 "$init_state" type bond mode 802.3ad
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ip link set dev dummy1 master bond1
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if [ "$init_state" = "down" ]; then
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ip link set dev bond1 up
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fi
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grep_bridge_fdb "$lacpdu_mc" bridge fdb show brport dummy1 >/dev/null
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check_err $? "LACPDU multicast address not present on slave (1)"
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ip link set dev bond1 down
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not grep_bridge_fdb "$lacpdu_mc" bridge fdb show brport dummy1 >/dev/null
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check_err $? "LACPDU multicast address still present on slave"
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ip link set dev bond1 up
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grep_bridge_fdb "$lacpdu_mc" bridge fdb show brport dummy1 >/dev/null
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check_err $? "LACPDU multicast address not present on slave (2)"
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cleanup
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log_test "bonding LACPDU multicast address to slave (from bond $init_state)"
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}
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# The LACPDU mc addr is added by different paths depending on the initial state
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# of the bond when enslaving a device. Test both cases.
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bond_listen_lacpdu_multicast_case_down()
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{
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RET=0
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bond_listen_lacpdu_multicast "down"
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}
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bond_listen_lacpdu_multicast_case_up()
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{
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RET=0
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bond_listen_lacpdu_multicast "up"
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}
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trap cleanup EXIT
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tests_run
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exit "$EXIT_STATUS"
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@ -0,0 +1,61 @@
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#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Test that a link aggregation device (bonding, team) removes the hardware
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# addresses that it adds on its underlying devices.
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test_LAG_cleanup()
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{
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local driver=$1
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local mode=$2
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local ucaddr="02:00:00:12:34:56"
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local addr6="fe80::78:9abc/64"
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local mcaddr="33:33:ff:78:9a:bc"
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local name
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ip link add dummy1 type dummy
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ip link add dummy2 type dummy
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if [ "$driver" = "bonding" ]; then
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name="bond1"
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ip link add "$name" up type bond mode "$mode"
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ip link set dev dummy1 master "$name"
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ip link set dev dummy2 master "$name"
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elif [ "$driver" = "team" ]; then
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name="team0"
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teamd -d -c '
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{
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"device": "'"$name"'",
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"runner": {
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"name": "'"$mode"'"
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},
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"ports": {
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"dummy1":
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{},
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"dummy2":
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{}
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}
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}
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'
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ip link set dev "$name" up
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else
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check_err 1
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log_test test_LAG_cleanup ": unknown driver \"$driver\""
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return
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fi
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# Used to test dev->uc handling
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ip link add mv0 link "$name" up address "$ucaddr" type macvlan
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# Used to test dev->mc handling
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ip address add "$addr6" dev "$name"
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ip link set dev "$name" down
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ip link del "$name"
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not grep_bridge_fdb "$ucaddr" bridge fdb show >/dev/null
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check_err $? "macvlan unicast address still present on a slave"
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not grep_bridge_fdb "$mcaddr" bridge fdb show >/dev/null
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check_err $? "IPv6 solicited-node multicast mac address still present on a slave"
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cleanup
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log_test "$driver cleanup mode $mode"
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}
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@ -0,0 +1,6 @@
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# SPDX-License-Identifier: GPL-2.0
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# Makefile for net selftests
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TEST_PROGS := dev_addr_lists.sh
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include ../../../lib.mk
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@ -0,0 +1,3 @@
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CONFIG_NET_TEAM=y
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CONFIG_NET_TEAM_MODE_LOADBALANCE=y
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CONFIG_MACVLAN=y
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@ -0,0 +1,51 @@
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#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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#
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# Test team device handling of addr lists (dev->uc, mc)
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#
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ALL_TESTS="
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team_cleanup
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"
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REQUIRE_MZ=no
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NUM_NETIFS=0
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lib_dir=$(dirname "$0")
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source "$lib_dir"/../../../net/forwarding/lib.sh
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source "$lib_dir"/../bonding/lag_lib.sh
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destroy()
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{
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local ifnames=(dummy0 dummy1 team0 mv0)
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local ifname
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for ifname in "${ifnames[@]}"; do
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ip link del "$ifname" &>/dev/null
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done
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}
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cleanup()
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{
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pre_cleanup
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destroy
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}
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team_cleanup()
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{
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RET=0
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test_LAG_cleanup "team" "lacp"
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}
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require_command teamd
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trap cleanup EXIT
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tests_run
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exit "$EXIT_STATUS"
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