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

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>
This commit is contained in:
Jeffrin Jose T 2019-05-15 12:14:04 +05:30 committed by Pablo Neira Ayuso
parent 719c7d563c
commit 82ce6eb1dd
1 changed files with 5 additions and 1 deletions
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6
tools/testing/selftests/netfilter/nft_nat.sh
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@ -24,7 +24,11 @@ ip netns add ns0
ip netns add ns1 ip netns add ns1
ip netns add ns2 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 link add veth1 netns ns0 type veth peer name eth0 netns ns2
ip -net ns0 link set lo up ip -net ns0 link set lo up