1 #!/bin/bash 1 #!/bin/bash
2 # SPDX-License-Identifier: GPL-2.0 2 # SPDX-License-Identifier: GPL-2.0
3 3
4 # Kselftest framework requirement - SKIP code 4 # Kselftest framework requirement - SKIP code is 4.
5 ksft_skip=4 5 ksft_skip=4
6 6
7 ALL_TESTS="loopback_test" 7 ALL_TESTS="loopback_test"
8 NUM_NETIFS=2 8 NUM_NETIFS=2
9 lib_dir=$(dirname "$0") 9 lib_dir=$(dirname "$0")
10 source "$lib_dir"/../../../net/forwarding/tc_c 10 source "$lib_dir"/../../../net/forwarding/tc_common.sh
11 source "$lib_dir"/../../../net/forwarding/lib. 11 source "$lib_dir"/../../../net/forwarding/lib.sh
12 12
13 h1_create() 13 h1_create()
14 { 14 {
15 simple_if_init $h1 192.0.2.1/24 15 simple_if_init $h1 192.0.2.1/24
16 tc qdisc add dev $h1 clsact 16 tc qdisc add dev $h1 clsact
17 } 17 }
18 18
19 h1_destroy() 19 h1_destroy()
20 { 20 {
21 tc qdisc del dev $h1 clsact 21 tc qdisc del dev $h1 clsact
22 simple_if_fini $h1 192.0.2.1/24 22 simple_if_fini $h1 192.0.2.1/24
23 } 23 }
24 24
25 h2_create() 25 h2_create()
26 { 26 {
27 simple_if_init $h2 27 simple_if_init $h2
28 } 28 }
29 29
30 h2_destroy() 30 h2_destroy()
31 { 31 {
32 simple_if_fini $h2 32 simple_if_fini $h2
33 } 33 }
34 34
35 loopback_test() 35 loopback_test()
36 { 36 {
37 RET=0 37 RET=0
38 38
39 tc filter add dev $h1 ingress protocol 39 tc filter add dev $h1 ingress protocol arp pref 1 handle 101 flower \
40 skip_hw arp_op reply arp_tip 1 40 skip_hw arp_op reply arp_tip 192.0.2.1 action drop
41 41
42 $MZ $h1 -c 1 -t arp -q 42 $MZ $h1 -c 1 -t arp -q
43 43
44 tc_check_packets "dev $h1 ingress" 101 44 tc_check_packets "dev $h1 ingress" 101 1
45 check_fail $? "Matched on a filter wit 45 check_fail $? "Matched on a filter without loopback setup"
46 46
47 ethtool -K $h1 loopback on 47 ethtool -K $h1 loopback on
48 check_err $? "Failed to enable loopbac 48 check_err $? "Failed to enable loopback"
49 49
50 setup_wait_dev $h1 50 setup_wait_dev $h1
51 51
52 $MZ $h1 -c 1 -t arp -q 52 $MZ $h1 -c 1 -t arp -q
53 53
54 tc_check_packets "dev $h1 ingress" 101 54 tc_check_packets "dev $h1 ingress" 101 1
55 check_err $? "Did not match on filter 55 check_err $? "Did not match on filter with loopback"
56 56
57 ethtool -K $h1 loopback off 57 ethtool -K $h1 loopback off
58 check_err $? "Failed to disable loopba 58 check_err $? "Failed to disable loopback"
59 59
60 $MZ $h1 -c 1 -t arp -q 60 $MZ $h1 -c 1 -t arp -q
61 61
62 tc_check_packets "dev $h1 ingress" 101 62 tc_check_packets "dev $h1 ingress" 101 2
63 check_fail $? "Matched on a filter aft 63 check_fail $? "Matched on a filter after loopback was removed"
64 64
65 tc filter del dev $h1 ingress protocol 65 tc filter del dev $h1 ingress protocol arp pref 1 handle 101 flower
66 66
67 log_test "loopback" 67 log_test "loopback"
68 } 68 }
69 69
70 setup_prepare() 70 setup_prepare()
71 { 71 {
72 h1=${NETIFS[p1]} 72 h1=${NETIFS[p1]}
73 h2=${NETIFS[p2]} 73 h2=${NETIFS[p2]}
74 74
75 vrf_prepare 75 vrf_prepare
76 76
77 h1_create 77 h1_create
78 h2_create 78 h2_create
79 79
80 if ethtool -k $h1 | grep loopback | gr 80 if ethtool -k $h1 | grep loopback | grep -q fixed; then
81 log_test "SKIP: dev $h1 does n 81 log_test "SKIP: dev $h1 does not support loopback feature"
82 exit $ksft_skip 82 exit $ksft_skip
83 fi 83 fi
84 } 84 }
85 85
86 cleanup() 86 cleanup()
87 { 87 {
88 pre_cleanup 88 pre_cleanup
89 89
90 h2_destroy 90 h2_destroy
91 h1_destroy 91 h1_destroy
92 92
93 vrf_cleanup 93 vrf_cleanup
94 } 94 }
95 95
96 trap cleanup EXIT 96 trap cleanup EXIT
97 97
98 setup_prepare 98 setup_prepare
99 setup_wait 99 setup_wait
100 100
101 tests_run 101 tests_run
102 102
103 exit $EXIT_STATUS 103 exit $EXIT_STATUS
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