summaryrefslogtreecommitdiff
path: root/tools/testing/selftests/drivers/net/hw/loopback.sh
blob: 5acc3ff820aa9e9d49ad97e9ba25e6f887ba8938 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0

# Kselftest framework requirement - SKIP code is 4.
ksft_skip=4

ALL_TESTS="loopback_test"
NUM_NETIFS=2
lib_dir=$(dirname "$0")
source "$lib_dir"/../../../net/forwarding/tc_common.sh
source "$lib_dir"/../../../net/forwarding/lib.sh

h1_create()
{
	simple_if_init $h1 192.0.2.1/24
	tc qdisc add dev $h1 clsact
}

h1_destroy()
{
	tc qdisc del dev $h1 clsact
	simple_if_fini $h1 192.0.2.1/24
}

h2_create()
{
	simple_if_init $h2
}

h2_destroy()
{
	simple_if_fini $h2
}

loopback_test()
{
	RET=0

	tc filter add dev $h1 ingress protocol arp pref 1 handle 101 flower \
		skip_hw arp_op reply arp_tip 192.0.2.1 action drop

	$MZ $h1 -c 1 -t arp -q

	tc_check_packets "dev $h1 ingress" 101 1
	check_fail $? "Matched on a filter without loopback setup"

	ethtool -K $h1 loopback on
	check_err $? "Failed to enable loopback"

	setup_wait_dev $h1

	$MZ $h1 -c 1 -t arp -q

	tc_check_packets "dev $h1 ingress" 101 1
	check_err $? "Did not match on filter with loopback"

	ethtool -K $h1 loopback off
	check_err $? "Failed to disable loopback"

	$MZ $h1 -c 1 -t arp -q

	tc_check_packets "dev $h1 ingress" 101 2
	check_fail $? "Matched on a filter after loopback was removed"

	tc filter del dev $h1 ingress protocol arp pref 1 handle 101 flower

	log_test "loopback"
}

setup_prepare()
{
	h1=${NETIFS[p1]}
	h2=${NETIFS[p2]}

	vrf_prepare

	h1_create
	h2_create

	if ethtool -k $h1 | grep loopback | grep -q fixed; then
		log_test "SKIP: dev $h1 does not support loopback feature"
		exit $ksft_skip
	fi
}

cleanup()
{
	pre_cleanup

	h2_destroy
	h1_destroy

	vrf_cleanup
}

trap cleanup EXIT

setup_prepare
setup_wait

tests_run

exit $EXIT_STATUS