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Message-Id: <20220831025836.207070-4-bpoirier@nvidia.com>
Date: Wed, 31 Aug 2022 11:58:36 +0900
From: Benjamin Poirier <bpoirier@...dia.com>
To: netdev@...r.kernel.org
Cc: Jay Vosburgh <j.vosburgh@...il.com>,
Veaceslav Falico <vfalico@...il.com>,
Andy Gospodarek <andy@...yhouse.net>,
"David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>, Jiri Pirko <jiri@...nulli.us>,
Shuah Khan <shuah@...nel.org>,
Benjamin Poirier <bpoirier@...dia.com>,
Jonathan Toppins <jtoppins@...hat.com>,
linux-kselftest@...r.kernel.org
Subject: [PATCH net 3/3] 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.
Signed-off-by: Benjamin Poirier <bpoirier@...dia.com>
---
MAINTAINERS | 1 +
tools/testing/selftests/Makefile | 1 +
.../selftests/drivers/net/bonding/Makefile | 3 +-
.../selftests/drivers/net/bonding/config | 1 +
.../drivers/net/bonding/dev_addr_lists.sh | 89 +++++++++++++++++++
.../selftests/drivers/net/bonding/lag_lib.sh | 63 +++++++++++++
.../selftests/drivers/net/team/Makefile | 6 ++
.../testing/selftests/drivers/net/team/config | 3 +
.../drivers/net/team/dev_addr_lists.sh | 51 +++++++++++
9 files changed, 217 insertions(+), 1 deletion(-)
create mode 100755 tools/testing/selftests/drivers/net/bonding/dev_addr_lists.sh
create mode 100644 tools/testing/selftests/drivers/net/bonding/lag_lib.sh
create mode 100644 tools/testing/selftests/drivers/net/team/Makefile
create mode 100644 tools/testing/selftests/drivers/net/team/config
create mode 100755 tools/testing/selftests/drivers/net/team/dev_addr_lists.sh
diff --git a/MAINTAINERS b/MAINTAINERS
index af4848466a08..a672a649ddc8 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -19935,6 +19935,7 @@ S: Supported
F: drivers/net/team/
F: include/linux/if_team.h
F: include/uapi/linux/if_team.h
+F: tools/testing/selftests/net/team/
TECHNOLOGIC SYSTEMS TS-5500 PLATFORM SUPPORT
M: "Savoir-faire Linux Inc." <kernel@...oirfairelinux.com>
diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile
index c2064a35688b..1fc89b8ef433 100644
--- a/tools/testing/selftests/Makefile
+++ b/tools/testing/selftests/Makefile
@@ -13,6 +13,7 @@ TARGETS += damon
TARGETS += drivers/dma-buf
TARGETS += drivers/s390x/uvdevice
TARGETS += drivers/net/bonding
+TARGETS += drivers/net/team
TARGETS += efivarfs
TARGETS += exec
TARGETS += filesystems
diff --git a/tools/testing/selftests/drivers/net/bonding/Makefile b/tools/testing/selftests/drivers/net/bonding/Makefile
index ab6c54b12098..bb7fe56f3801 100644
--- a/tools/testing/selftests/drivers/net/bonding/Makefile
+++ b/tools/testing/selftests/drivers/net/bonding/Makefile
@@ -1,6 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
# Makefile for net selftests
-TEST_PROGS := bond-break-lacpdu-tx.sh
+TEST_PROGS := bond-break-lacpdu-tx.sh \
+ dev_addr_lists.sh
include ../../../lib.mk
diff --git a/tools/testing/selftests/drivers/net/bonding/config b/tools/testing/selftests/drivers/net/bonding/config
index dc1c22de3c92..70638fa50b2c 100644
--- a/tools/testing/selftests/drivers/net/bonding/config
+++ b/tools/testing/selftests/drivers/net/bonding/config
@@ -1 +1,2 @@
CONFIG_BONDING=y
+CONFIG_MACVLAN=y
diff --git a/tools/testing/selftests/drivers/net/bonding/dev_addr_lists.sh b/tools/testing/selftests/drivers/net/bonding/dev_addr_lists.sh
new file mode 100755
index 000000000000..47ad6f22c15b
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/bonding/dev_addr_lists.sh
@@ -0,0 +1,89 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test bond device handling of addr lists (dev->uc, mc)
+#
+
+ALL_TESTS="
+ bond_cleanup_mode1
+ bond_cleanup_mode4
+ bond_listen_lacpdu_multicast
+"
+
+REQUIRE_MZ=no
+NUM_NETIFS=0
+lib_dir=$(dirname "$0")
+source "$lib_dir"/../../../net/forwarding/lib.sh
+
+source "$lib_dir"/lag_lib.sh
+
+
+destroy()
+{
+ local ifnames=(dummy1 dummy2 bond1 mv0)
+ local ifname
+
+ for ifname in "${ifnames[@]}"; do
+ ip link del "$ifname" &>/dev/null
+ done
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ destroy
+}
+
+
+# bond driver control paths vary between modes that have a primary slave
+# (bond_uses_primary()) and others. Test both kinds of modes.
+
+bond_cleanup_mode1()
+{
+ RET=0
+
+ test_LAG_cleanup "bonding" "active-backup"
+}
+
+bond_cleanup_mode4() {
+ RET=0
+
+ test_LAG_cleanup "bonding" "802.3ad"
+}
+
+bond_listen_lacpdu_multicast()
+{
+ RET=0
+
+ local lacpdu_mc="01:80:c2:00:00:02"
+
+ ip link add dummy1 type dummy
+ ip link add bond1 up type bond mode 802.3ad
+ ip link set dev dummy1 master bond1
+ ip link set dev dummy1 up
+
+ grep_bridge_fdb "$lacpdu_mc" bridge fdb show brport dummy1 >/dev/null
+ check_err $? "LACPDU multicast address not present on slave (1)"
+
+ ip link set dev bond1 down
+
+ not grep_bridge_fdb "$lacpdu_mc" bridge fdb show brport dummy1 >/dev/null
+ check_err $? "LACPDU multicast address still present on slave"
+
+ ip link set dev bond1 up
+
+ grep_bridge_fdb "$lacpdu_mc" bridge fdb show brport dummy1 >/dev/null
+ check_err $? "LACPDU multicast address not present on slave (2)"
+
+ cleanup
+
+ log_test "Bond adds LACPDU multicast address to slave"
+}
+
+
+trap cleanup EXIT
+
+tests_run
+
+exit "$EXIT_STATUS"
diff --git a/tools/testing/selftests/drivers/net/bonding/lag_lib.sh b/tools/testing/selftests/drivers/net/bonding/lag_lib.sh
new file mode 100644
index 000000000000..51458f1da035
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/bonding/lag_lib.sh
@@ -0,0 +1,63 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test that a link aggregation device (bonding, team) removes the hardware
+# addresses that it adds on its underlying devices.
+test_LAG_cleanup()
+{
+ local driver="$1"
+ local mode="$2"
+ local ucaddr="02:00:00:12:34:56"
+ local addr6="fe80::78:9abc/64"
+ local mcaddr="33:33:ff:78:9a:bc"
+ local name
+
+ ip link add dummy1 type dummy
+ ip link add dummy2 type dummy
+ if [ "$driver" = "bonding" ]; then
+ name="bond1"
+ ip link add "$name" up type bond mode "$mode"
+ ip link set dev dummy1 master "$name"
+ ip link set dev dummy2 master "$name"
+ elif [ "$driver" = "team" ]; then
+ name="team0"
+ teamd -d -c '
+ {
+ "device": "'"$name"'",
+ "runner": {
+ "name": "'"$mode"'"
+ },
+ "ports": {
+ "dummy1":
+ {},
+ "dummy2":
+ {}
+ }
+ }
+ '
+ ip link set dev "$name" up
+ else
+ check_err 1
+ log_test test_LAG_cleanup ": unknown driver \"$driver\""
+ return
+ fi
+
+ ip link set dev dummy1 up
+ ip link set dev dummy2 up
+ # Used to test dev->uc handling
+ ip link add mv0 link "$name" up address "$ucaddr" type macvlan
+ # Used to test dev->mc handling
+ ip address add "$addr6" dev "$name"
+ ip link set dev "$name" down
+ ip link del "$name"
+
+ not grep_bridge_fdb "$ucaddr" bridge fdb show >/dev/null
+ check_err $? "macvlan unicast address still present on a slave"
+
+ not grep_bridge_fdb "$mcaddr" bridge fdb show >/dev/null
+ check_err $? "IPv6 solicited-node multicast mac address still present on a slave"
+
+ cleanup
+
+ log_test "$driver cleanup mode $mode"
+}
diff --git a/tools/testing/selftests/drivers/net/team/Makefile b/tools/testing/selftests/drivers/net/team/Makefile
new file mode 100644
index 000000000000..642d8df1c137
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/team/Makefile
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0
+# Makefile for net selftests
+
+TEST_PROGS := dev_addr_lists.sh
+
+include ../../../lib.mk
diff --git a/tools/testing/selftests/drivers/net/team/config b/tools/testing/selftests/drivers/net/team/config
new file mode 100644
index 000000000000..265b6882cc21
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/team/config
@@ -0,0 +1,3 @@
+CONFIG_NET_TEAM=y
+CONFIG_NET_TEAM_MODE_LOADBALANCE=y
+CONFIG_MACVLAN=y
diff --git a/tools/testing/selftests/drivers/net/team/dev_addr_lists.sh b/tools/testing/selftests/drivers/net/team/dev_addr_lists.sh
new file mode 100755
index 000000000000..debda7262956
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/team/dev_addr_lists.sh
@@ -0,0 +1,51 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test team device handling of addr lists (dev->uc, mc)
+#
+
+ALL_TESTS="
+ team_cleanup
+"
+
+REQUIRE_MZ=no
+NUM_NETIFS=0
+lib_dir=$(dirname "$0")
+source "$lib_dir"/../../../net/forwarding/lib.sh
+
+source "$lib_dir"/../bonding/lag_lib.sh
+
+
+destroy()
+{
+ local ifnames=(dummy0 dummy1 team0 mv0)
+ local ifname
+
+ for ifname in "${ifnames[@]}"; do
+ ip link del "$ifname" &>/dev/null
+ done
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ destroy
+}
+
+
+team_cleanup()
+{
+ RET=0
+
+ test_LAG_cleanup "team" "lacp"
+}
+
+
+require_command teamd
+
+trap cleanup EXIT
+
+tests_run
+
+exit "$EXIT_STATUS"
--
2.36.1
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