selftests: netdevsim: add test toggling macsec offload

The test verifies that toggling offload works (both via rtnetlink and
macsec's genetlink APIs). This is only possible when no SA is
configured.

Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/bf8e27ee0d921caa4eb35f1e830eca6d4080ddb2.1730929545.git.sd@queasysnail.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/tools/testing/selftests/drivers/net/netdevsim/macsec-offload.sh b/tools/testing/selftests/drivers/net/netdevsim/macsec-offload.sh
index 7babcfd76b22de7f177e5073a82a6de4c88797be..1f2775846ea0668e893e4a6480ec01cf9022bf4e 100755 (executable)
--- a/tools/testing/selftests/drivers/net/netdevsim/macsec-offload.sh
+++ b/tools/testing/selftests/drivers/net/netdevsim/macsec-offload.sh
@@ -48,6 +48,27 @@ check $?
 ip macsec add "${MACSEC_NETDEV}" rx port 1235 address "1c:ed:de:ad:be:ef" 2> /dev/null
 check $? '' '' 1
 
+# can't disable macsec offload when SAs are configured
+ip link set "${MACSEC_NETDEV}" type macsec offload off 2> /dev/null
+check $? '' '' 1
+
+ip macsec offload "${MACSEC_NETDEV}" off 2> /dev/null
+check $? '' '' 1
+
+# toggle macsec offload via rtnetlink
+ip link set "${MACSEC_NETDEV}2" type macsec offload off
+check $?
+
+ip link set "${MACSEC_NETDEV}2" type macsec offload mac
+check $?
+
+# toggle macsec offload via genetlink
+ip macsec offload "${MACSEC_NETDEV}2" off
+check $?
+
+ip macsec offload "${MACSEC_NETDEV}2" mac
+check $?
+
 for dev in ${MACSEC_NETDEV}{,2,3} ; do
     ip link del $dev
     check $?