From: Sabrina Dubroca sd@queasysnail.net
[ Upstream commit c81c7012e0c769b5704c2b07bd5224965e76fb70 ]
Some systems don't have the ping6 binary anymore, and use ping for everything. Detect the absence of ping6 and try to use ping instead.
Fixes: d1f1b9cbf34c ("selftests: net: Introduce first PMTU test") Signed-off-by: Sabrina Dubroca sd@queasysnail.net Acked-by: Stefano Brivio sbrivio@redhat.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin alexander.levin@microsoft.com --- tools/testing/selftests/net/pmtu.sh | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/tools/testing/selftests/net/pmtu.sh b/tools/testing/selftests/net/pmtu.sh index 0ecf2609b9a4..32a194e3e07a 100755 --- a/tools/testing/selftests/net/pmtu.sh +++ b/tools/testing/selftests/net/pmtu.sh @@ -46,6 +46,9 @@ # Kselftest framework requirement - SKIP code is 4. ksft_skip=4
+# Some systems don't have a ping6 binary anymore +which ping6 > /dev/null 2>&1 && ping6=$(which ping6) || ping6=$(which ping) + tests=" pmtu_vti6_exception vti6: PMTU exceptions pmtu_vti4_exception vti4: PMTU exceptions @@ -274,7 +277,7 @@ test_pmtu_vti6_exception() { mtu "${ns_b}" veth_b 4000 mtu "${ns_a}" vti6_a 5000 mtu "${ns_b}" vti6_b 5000 - ${ns_a} ping6 -q -i 0.1 -w 2 -s 60000 ${vti6_b_addr} > /dev/null + ${ns_a} ${ping6} -q -i 0.1 -w 2 -s 60000 ${vti6_b_addr} > /dev/null
# Check that exception was created if [ "$(route_get_dst_pmtu_from_exception "${ns_a}" ${vti6_b_addr})" = "" ]; then