linux-kernel - [PATCH v2] kselftests/bpf: use ping6 as the default ipv6 ping binary if it exists

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Date:   Tue, 30 Oct 2018 11:15:55 +0800
From:   Li Zhijian <lizhijian@...fujitsu.com>
To:     shuah@...nel.org, netdev@...r.kernel.org,
        linux-kselftest@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, ast@...nel.org, daniel@...earbox.net,
        Li Zhijian <lizhijian@...fujitsu.com>
Subject: [PATCH v2] kselftests/bpf: use ping6 as the default ipv6 ping binary if it exists

ping binary on some distros doesn't support "ping -6" anymore.

Signed-off-by: Li Zhijian <lizhijian@...fujitsu.com>
---
 tools/testing/selftests/bpf/test_skb_cgroup_id.sh | 3 ++-
 tools/testing/selftests/bpf/test_sock_addr.sh     | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/bpf/test_skb_cgroup_id.sh b/tools/testing/selftests/bpf/test_skb_cgroup_id.sh
index 42544a9..a9bc6f8 100755
--- a/tools/testing/selftests/bpf/test_skb_cgroup_id.sh
+++ b/tools/testing/selftests/bpf/test_skb_cgroup_id.sh
@@ -10,7 +10,7 @@ wait_for_ip()
 	echo -n "Wait for testing link-local IP to become available "
 	for _i in $(seq ${MAX_PING_TRIES}); do
 		echo -n "."
-		if ping -6 -q -c 1 -W 1 ff02::1%${TEST_IF} >/dev/null 2>&1; then
+		if $PING6 -c 1 -W 1 ff02::1%${TEST_IF} >/dev/null 2>&1; then
 			echo " OK"
 			return
 		fi
@@ -58,5 +58,6 @@ BPF_PROG_OBJ="${DIR}/test_skb_cgroup_id_kern.o"
 BPF_PROG_SECTION="cgroup_id_logger"
 BPF_PROG_ID=0
 PROG="${DIR}/test_skb_cgroup_id_user"
+type ping6 >/dev/null 2>&1 && PING6="ping6" || PING6="ping -6"
 
 main
diff --git a/tools/testing/selftests/bpf/test_sock_addr.sh b/tools/testing/selftests/bpf/test_sock_addr.sh
index 9832a87..3b9fdb8 100755
--- a/tools/testing/selftests/bpf/test_sock_addr.sh
+++ b/tools/testing/selftests/bpf/test_sock_addr.sh
@@ -4,7 +4,8 @@ set -eu
 
 ping_once()
 {
-	ping -${1} -q -c 1 -W 1 ${2%%/*} >/dev/null 2>&1
+	type ping${1} >/dev/null 2>&1 && PING="ping${1}" || PING="ping -${1}"
+	$PING -q -c 1 -W 1 ${2%%/*} >/dev/null 2>&1
 }
 
 wait_for_ip()
-- 
2.7.4