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Message-ID: <910c5880ae6d3b558d6889cbdba2be690c2615c6.1731589511.git.petrm@nvidia.com>
Date: Thu, 14 Nov 2024 15:09:59 +0100
From: Petr Machata <petrm@...dia.com>
To: "David S. Miller" <davem@...emloft.net>, Eric Dumazet
<edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni
<pabeni@...hat.com>, <netdev@...r.kernel.org>
CC: Simon Horman <horms@...nel.org>, Ido Schimmel <idosch@...dia.com>, "Petr
Machata" <petrm@...dia.com>, Amit Cohen <amcohen@...dia.com>, Vladimir Oltean
<vladimir.oltean@....com>, Andy Roulin <aroulin@...dia.com>,
<mlxsw@...dia.com>, Shuah Khan <skhan@...uxfoundation.org>, Shuah Khan
<shuah@...nel.org>, Benjamin Poirier <bpoirier@...dia.com>, Hangbin Liu
<liuhangbin@...il.com>, <linux-kselftest@...r.kernel.org>, Jiri Pirko
<jiri@...nulli.us>
Subject: [PATCH net-next v4 7/7] selftests: net: fdb_notify: Add a test for FDB notifications
Check that only one notification is produced for various FDB edit
operations.
Regarding the ip_link_add() and ip_link_master() helpers. This pattern of
action plus corresponding defer is bound to come up often, and a dedicated
vocabulary to capture it will be handy. tunnel_create() and vlan_create()
from forwarding/lib.sh are somewhat opaque and perhaps too kitchen-sinky,
so I tried to go in the opposite direction with these ones, and wrapped
only the bare minimum to schedule a corresponding cleanup.
Signed-off-by: Petr Machata <petrm@...dia.com>
Reviewed-by: Amit Cohen <amcohen@...dia.com>
Acked-by: Shuah Khan <skhan@...uxfoundation.org>
---
Notes:
v4:
- Adjust the sleep around the FDB op
---
CC: Shuah Khan <shuah@...nel.org>
CC: Benjamin Poirier <bpoirier@...dia.com>
CC: Hangbin Liu <liuhangbin@...il.com>
CC: linux-kselftest@...r.kernel.org
CC: Jiri Pirko <jiri@...nulli.us>
tools/testing/selftests/net/Makefile | 2 +-
tools/testing/selftests/net/fdb_notify.sh | 96 +++++++++++++++++++++++
tools/testing/selftests/net/lib.sh | 17 ++++
3 files changed, 114 insertions(+), 1 deletion(-)
create mode 100755 tools/testing/selftests/net/fdb_notify.sh
diff --git a/tools/testing/selftests/net/Makefile b/tools/testing/selftests/net/Makefile
index 2b2a5ec7fa6a..d1494700f501 100644
--- a/tools/testing/selftests/net/Makefile
+++ b/tools/testing/selftests/net/Makefile
@@ -92,7 +92,7 @@ TEST_PROGS += test_vxlan_mdb.sh
TEST_PROGS += test_bridge_neigh_suppress.sh
TEST_PROGS += test_vxlan_nolocalbypass.sh
TEST_PROGS += test_bridge_backup_port.sh
-TEST_PROGS += fdb_flush.sh
+TEST_PROGS += fdb_flush.sh fdb_notify.sh
TEST_PROGS += fq_band_pktlimit.sh
TEST_PROGS += vlan_hw_filter.sh
TEST_PROGS += bpf_offload.py
diff --git a/tools/testing/selftests/net/fdb_notify.sh b/tools/testing/selftests/net/fdb_notify.sh
new file mode 100755
index 000000000000..c03151e7791c
--- /dev/null
+++ b/tools/testing/selftests/net/fdb_notify.sh
@@ -0,0 +1,96 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+source lib.sh
+
+ALL_TESTS="
+ test_dup_bridge
+ test_dup_vxlan_self
+ test_dup_vxlan_master
+ test_dup_macvlan_self
+ test_dup_macvlan_master
+"
+
+do_test_dup()
+{
+ local op=$1; shift
+ local what=$1; shift
+ local tmpf
+
+ RET=0
+
+ tmpf=$(mktemp)
+ defer rm "$tmpf"
+
+ defer_scope_push
+ bridge monitor fdb &> "$tmpf" &
+ defer kill_process $!
+
+ sleep 0.5
+ bridge fdb "$op" 00:11:22:33:44:55 vlan 1 "$@"
+ sleep 0.5
+ defer_scope_pop
+
+ local count=$(grep -c -e 00:11:22:33:44:55 $tmpf)
+ ((count == 1))
+ check_err $? "Got $count notifications, expected 1"
+
+ log_test "$what $op: Duplicate notifications"
+}
+
+test_dup_bridge()
+{
+ ip_link_add br up type bridge vlan_filtering 1
+ do_test_dup add "bridge" dev br self
+ do_test_dup del "bridge" dev br self
+}
+
+test_dup_vxlan_self()
+{
+ ip_link_add br up type bridge vlan_filtering 1
+ ip_link_add vx up type vxlan id 2000 dstport 4789
+ ip_link_master vx br
+
+ do_test_dup add "vxlan" dev vx self dst 192.0.2.1
+ do_test_dup del "vxlan" dev vx self dst 192.0.2.1
+}
+
+test_dup_vxlan_master()
+{
+ ip_link_add br up type bridge vlan_filtering 1
+ ip_link_add vx up type vxlan id 2000 dstport 4789
+ ip_link_master vx br
+
+ do_test_dup add "vxlan master" dev vx master
+ do_test_dup del "vxlan master" dev vx master
+}
+
+test_dup_macvlan_self()
+{
+ ip_link_add dd up type dummy
+ ip_link_add mv up link dd type macvlan mode passthru
+
+ do_test_dup add "macvlan self" dev mv self
+ do_test_dup del "macvlan self" dev mv self
+}
+
+test_dup_macvlan_master()
+{
+ ip_link_add br up type bridge vlan_filtering 1
+ ip_link_add dd up type dummy
+ ip_link_add mv up link dd type macvlan mode passthru
+ ip_link_master mv br
+
+ do_test_dup add "macvlan master" dev mv self
+ do_test_dup del "macvlan master" dev mv self
+}
+
+cleanup()
+{
+ defer_scopes_cleanup
+}
+
+trap cleanup EXIT
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/lib.sh b/tools/testing/selftests/net/lib.sh
index 24f63e45735d..8994fec1c38f 100644
--- a/tools/testing/selftests/net/lib.sh
+++ b/tools/testing/selftests/net/lib.sh
@@ -442,3 +442,20 @@ kill_process()
# Suppress noise from killing the process.
{ kill $pid && wait $pid; } 2>/dev/null
}
+
+ip_link_add()
+{
+ local name=$1; shift
+
+ ip link add name "$name" "$@"
+ defer ip link del dev "$name"
+}
+
+ip_link_master()
+{
+ local member=$1; shift
+ local master=$1; shift
+
+ ip link set dev "$member" master "$master"
+ defer ip link set dev "$member" nomaster
+}
--
2.45.0
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