A test for the basic NAT functionality uses ip command which needs veth device.There is a condition where the kernel support for veth is not compiled into the kernel and the test script breaks.This patch contains code for reasonable error display and correct code exit.

Signed-off-by: Jeffrin Jose T jeffrin@rajagiritech.edu.in --- tools/testing/selftests/netfilter/nft_nat.sh | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/netfilter/nft_nat.sh b/tools/testing/selftests/netfilter/nft_nat.sh index 8ec76681605c..f25f72a75cf3 100755 --- a/tools/testing/selftests/netfilter/nft_nat.sh +++ b/tools/testing/selftests/netfilter/nft_nat.sh @@ -23,7 +23,11 @@ ip netns add ns0 ip netns add ns1 ip netns add ns2

-ip link add veth0 netns ns0 type veth peer name eth0 netns ns1 +ip link add veth0 netns ns0 type veth peer name eth0 netns ns1 > /dev/null 2>&1 +if [ $? -ne 0 ];then + echo "SKIP: No virtual ethernet pair device support in kernel" + exit $ksft_skip +fi ip link add veth1 netns ns0 type veth peer name eth0 netns ns2

ip -net ns0 link set lo up