[PATCHv2 net-next 03/14] selftests/net: specify the interface when do arping

Hangbin Liu
2023-11-30T04:01:29Z

When do arping, the interface need to be specified. Or we will
get error: Interface "lo" is not ARPable. And the test failed.
]# ./arp_ndisc_untracked_subnets.sh
TEST: test_arp: accept_arp=0 [ OK ]
TEST: test_arp: accept_arp=1 [FAIL]
TEST: test_arp: accept_arp=2 same_subnet=0 [ OK ]
TEST: test_arp: accept_arp=2 same_subnet=1 [FAIL]

After fix:
]# ./arp_ndisc_untracked_subnets.sh
TEST: test_arp: accept_arp=0 [ OK ]
TEST: test_arp: accept_arp=1 [ OK ]
TEST: test_arp: accept_arp=2 same_subnet=0 [ OK ]
TEST: test_arp: accept_arp=2 same_subnet=1 [ OK ]

Fixes: 0ea7b0a454ca ("selftests: net: arp_ndisc_untracked_subnets: test for arp_accept and accept_untracked_na")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
---
tools/testing/selftests/net/arp_ndisc_untracked_subnets.sh | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/net/arp_ndisc_untracked_subnets.sh b/tools/testing/selftests/net/arp_ndisc_untracked_subnets.sh
index c899b446acb6..327427ec10f5 100755
--- a/tools/testing/selftests/net/arp_ndisc_untracked_subnets.sh
+++ b/tools/testing/selftests/net/arp_ndisc_untracked_subnets.sh
@@ -150,7 +150,7 @@ arp_test_gratuitous() {
fi
# Supply arp_accept option to set up which sets it in sysctl
setup ${arp_accept}
- ip netns exec ${HOST_NS} arping -A -U ${HOST_ADDR} -c1 2>&1 >/dev/null
+ ip netns exec ${HOST_NS} arping -A -I ${HOST_INTF} -U ${HOST_ADDR} -c1 2>&1 >/dev/null

if verify_arp $1 $2; then
printf " TEST: %-60s [ OK ]\n" "${test_msg[*]}"
--
2.41.0