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selftests: netfilter: missing error check when setting up veth interface 

[ Upstream commit 82ce6eb1dd ]

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>
Acked-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Jeffrin Jose T 2019-05-15 12:14:04 +05:30 committed by Greg Kroah-Hartman
parent 72634d7fd9
commit b22ab51a79
1 changed files with 5 additions and 1 deletions
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6
tools/testing/selftests/netfilter/nft_nat.sh
View File

@ -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