selftests: rtnetlink: add MACsec offload tests

Like the IPsec offload test, this requires netdevsim.

Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/tools/testing/selftests/net/rtnetlink.sh b/tools/testing/selftests/net/rtnetlink.sh
index ba286d6..488f496 100755 (executable)
--- a/tools/testing/selftests/net/rtnetlink.sh
+++ b/tools/testing/selftests/net/rtnetlink.sh
@@ -21,6 +21,7 @@ ALL_TESTS="
        kci_test_vrf
        kci_test_encap
        kci_test_macsec
+       kci_test_macsec_offload
        kci_test_ipsec
        kci_test_ipsec_offload
        kci_test_fdb_get
@@ -643,6 +644,88 @@ kci_test_macsec()
        echo "PASS: macsec"
 }
 
+kci_test_macsec_offload()
+{
+       sysfsd=/sys/kernel/debug/netdevsim/netdevsim0/ports/0/
+       sysfsnet=/sys/bus/netdevsim/devices/netdevsim0/net/
+       probed=false
+       local ret=0
+
+       ip macsec help 2>&1 | grep -q "^Usage: ip macsec"
+       if [ $? -ne 0 ]; then
+               echo "SKIP: macsec: iproute2 too old"
+               return $ksft_skip
+       fi
+
+       # setup netdevsim since dummydev doesn't have offload support
+       if [ ! -w /sys/bus/netdevsim/new_device ] ; then
+               modprobe -q netdevsim
+               check_err $?
+               if [ $ret -ne 0 ]; then
+                       echo "SKIP: macsec_offload can't load netdevsim"
+                       return $ksft_skip
+               fi
+               probed=true
+       fi
+
+       echo "0" > /sys/bus/netdevsim/new_device
+       while [ ! -d $sysfsnet ] ; do :; done
+       udevadm settle
+       dev=`ls $sysfsnet`
+
+       ip link set $dev up
+       if [ ! -d $sysfsd ] ; then
+               echo "FAIL: macsec_offload can't create device $dev"
+               return 1
+       fi
+
+       ethtool -k $dev | grep -q 'macsec-hw-offload: on'
+       if [ $? -eq 1 ] ; then
+               echo "FAIL: macsec_offload netdevsim doesn't support MACsec offload"
+               return 1
+       fi
+
+       ip link add link $dev kci_macsec1 type macsec port 4 offload mac
+       check_err $?
+
+       ip link add link $dev kci_macsec2 type macsec address "aa:bb:cc:dd:ee:ff" port 5 offload mac
+       check_err $?
+
+       ip link add link $dev kci_macsec3 type macsec sci abbacdde01020304 offload mac
+       check_err $?
+
+       ip link add link $dev kci_macsec4 type macsec port 8 offload mac 2> /dev/null
+       check_fail $?
+
+       msname=kci_macsec1
+
+       ip macsec add "$msname" tx sa 0 pn 1024 on key 01 12345678901234567890123456789012
+       check_err $?
+
+       ip macsec add "$msname" rx port 1234 address "1c:ed:de:ad:be:ef"
+       check_err $?
+
+       ip macsec add "$msname" rx port 1234 address "1c:ed:de:ad:be:ef" sa 0 pn 1 on \
+               key 00 0123456789abcdef0123456789abcdef
+       check_err $?
+
+       ip macsec add "$msname" rx port 1235 address "1c:ed:de:ad:be:ef" 2> /dev/null
+       check_fail $?
+
+       # clean up any leftovers
+       for msdev in kci_macsec{1,2,3,4} ; do
+           ip link del $msdev 2> /dev/null
+       done
+       echo 0 > /sys/bus/netdevsim/del_device
+       $probed && rmmod netdevsim
+
+       if [ $ret -ne 0 ]; then
+               echo "FAIL: macsec_offload"
+               return 1
+       fi
+       echo "PASS: macsec_offload"
+}
+
 #-------------------------------------------------------------------
 # Example commands
 #   ip x s add proto esp src 14.0.0.52 dst 14.0.0.70 \