selftests: net: add tc flower cfm test

New cfm flower test case is added to the net forwarding selfttests.

Example output:

 # ./tc_flower_cfm.sh p1 p2
 TEST: CFM opcode match test                                         [ OK ]
 TEST: CFM level match test                                          [ OK ]
 TEST: CFM opcode and level match test                               [ OK ]

Signed-off-by: Zahari Doychev <zdoychev@maxlinear.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/tools/testing/selftests/net/forwarding/Makefile b/tools/testing/selftests/net/forwarding/Makefile
index 9d0062b..770efbe 100644 (file)
--- a/tools/testing/selftests/net/forwarding/Makefile
+++ b/tools/testing/selftests/net/forwarding/Makefile
@@ -84,6 +84,7 @@ TEST_PROGS = bridge_igmp.sh \
        tc_flower_router.sh \
        tc_flower.sh \
        tc_flower_l2_miss.sh \
+       tc_flower_cfm.sh \
        tc_mpls_l2vpn.sh \
        tc_police.sh \
        tc_shblocks.sh \

diff --git a/tools/testing/selftests/net/forwarding/tc_flower_cfm.sh b/tools/testing/selftests/net/forwarding/tc_flower_cfm.sh
new file mode 100755 (executable)
index 0000000..3ca20df
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/tc_flower_cfm.sh
@@ -0,0 +1,206 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="match_cfm_opcode match_cfm_level match_cfm_level_and_opcode"
+NUM_NETIFS=2
+source tc_common.sh
+source lib.sh
+
+h1_create()
+{
+       simple_if_init $h1
+}
+
+h1_destroy()
+{
+       simple_if_fini $h1
+}
+
+h2_create()
+{
+       simple_if_init $h2
+       tc qdisc add dev $h2 clsact
+}
+
+h2_destroy()
+{
+       tc qdisc del dev $h2 clsact
+       simple_if_fini $h2
+}
+
+u8_to_hex()
+{
+       local u8=$1; shift
+
+       printf "%02x" $u8
+}
+
+generate_cfm_hdr()
+{
+       local mdl=$1; shift
+       local op=$1; shift
+       local flags=$1; shift
+       local tlv_offset=$1; shift
+
+       local cfm_hdr=$(:
+                      )"$(u8_to_hex $((mdl << 5))):"$(         : MD level and Version
+                      )"$(u8_to_hex $op):"$(                   : OpCode
+                      )"$(u8_to_hex $flags):"$(                : Flags
+                      )"$(u8_to_hex $tlv_offset)"$(            : TLV offset
+                      )
+
+       echo $cfm_hdr
+}
+
+match_cfm_opcode()
+{
+       local ethtype="89 02"; readonly ethtype
+       RET=0
+
+       tc filter add dev $h2 ingress protocol cfm pref 1 handle 101 \
+          flower cfm op 47 action drop
+       tc filter add dev $h2 ingress protocol cfm pref 1 handle 102 \
+          flower cfm op 43 action drop
+
+       pkt="$ethtype $(generate_cfm_hdr 7 47 0 32)"
+       $MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
+       pkt="$ethtype $(generate_cfm_hdr 6 5 0 4)"
+       $MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
+
+       tc_check_packets "dev $h2 ingress" 101 1
+       check_err $? "Did not match on correct opcode"
+
+       tc_check_packets "dev $h2 ingress" 102 0
+       check_err $? "Matched on the wrong opcode"
+
+       pkt="$ethtype $(generate_cfm_hdr 0 43 0 12)"
+       $MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
+
+       tc_check_packets "dev $h2 ingress" 101 1
+       check_err $? "Matched on the wrong opcode"
+
+       tc_check_packets "dev $h2 ingress" 102 1
+       check_err $? "Did not match on correct opcode"
+
+       tc filter del dev $h2 ingress protocol cfm pref 1 handle 101 flower
+       tc filter del dev $h2 ingress protocol cfm pref 1 handle 102 flower
+
+       log_test "CFM opcode match test"
+}
+
+match_cfm_level()
+{
+       local ethtype="89 02"; readonly ethtype
+       RET=0
+
+       tc filter add dev $h2 ingress protocol cfm pref 1 handle 101 \
+          flower cfm mdl 5 action drop
+       tc filter add dev $h2 ingress protocol cfm pref 1 handle 102 \
+          flower cfm mdl 3 action drop
+       tc filter add dev $h2 ingress protocol cfm pref 1 handle 103 \
+          flower cfm mdl 0 action drop
+
+       pkt="$ethtype $(generate_cfm_hdr 5 42 0 12)"
+       $MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
+       pkt="$ethtype $(generate_cfm_hdr 6 1 0 70)"
+       $MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
+       pkt="$ethtype $(generate_cfm_hdr 0 1 0 70)"
+       $MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
+
+       tc_check_packets "dev $h2 ingress" 101 1
+       check_err $? "Did not match on correct level"
+
+       tc_check_packets "dev $h2 ingress" 102 0
+       check_err $? "Matched on the wrong level"
+
+       tc_check_packets "dev $h2 ingress" 103 1
+       check_err $? "Did not match on correct level"
+
+       pkt="$ethtype $(generate_cfm_hdr 3 0 0 4)"
+       $MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
+
+       tc_check_packets "dev $h2 ingress" 101 1
+       check_err $? "Matched on the wrong level"
+
+       tc_check_packets "dev $h2 ingress" 102 1
+       check_err $? "Did not match on correct level"
+
+       tc_check_packets "dev $h2 ingress" 103 1
+       check_err $? "Matched on the wrong level"
+
+       tc filter del dev $h2 ingress protocol cfm pref 1 handle 101 flower
+       tc filter del dev $h2 ingress protocol cfm pref 1 handle 102 flower
+       tc filter del dev $h2 ingress protocol cfm pref 1 handle 103 flower
+
+       log_test "CFM level match test"
+}
+
+match_cfm_level_and_opcode()
+{
+       local ethtype="89 02"; readonly ethtype
+       RET=0
+
+       tc filter add dev $h2 ingress protocol cfm pref 1 handle 101 \
+          flower cfm mdl 5 op 41 action drop
+       tc filter add dev $h2 ingress protocol cfm pref 1 handle 102 \
+          flower cfm mdl 7 op 42 action drop
+
+       pkt="$ethtype $(generate_cfm_hdr 5 41 0 4)"
+       $MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
+       pkt="$ethtype $(generate_cfm_hdr 7 3 0 4)"
+       $MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
+       pkt="$ethtype $(generate_cfm_hdr 3 42 0 12)"
+       $MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
+
+       tc_check_packets "dev $h2 ingress" 101 1
+       check_err $? "Did not match on correct level and opcode"
+
+       tc_check_packets "dev $h2 ingress" 102 0
+       check_err $? "Matched on the wrong level and opcode"
+
+       pkt="$ethtype $(generate_cfm_hdr 7 42 0 12)"
+       $MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
+
+       tc_check_packets "dev $h2 ingress" 101 1
+       check_err $? "Matched on the wrong level and opcode"
+
+       tc_check_packets "dev $h2 ingress" 102 1
+       check_err $? "Did not match on correct level and opcode"
+
+       tc filter del dev $h2 ingress protocol cfm pref 1 handle 101 flower
+       tc filter del dev $h2 ingress protocol cfm pref 1 handle 102 flower
+
+       log_test "CFM opcode and level match test"
+}
+
+setup_prepare()
+{
+       h1=${NETIFS[p1]}
+       h2=${NETIFS[p2]}
+       h1mac=$(mac_get $h1)
+       h2mac=$(mac_get $h2)
+
+       vrf_prepare
+
+       h1_create
+       h2_create
+}
+
+cleanup()
+{
+       pre_cleanup
+
+       h2_destroy
+       h1_destroy
+
+       vrf_cleanup
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS