exit script with comments when parameters are wrong during address addition. No need for a message when trying to change MTU with lower values: output is self-explanatory. Use short testing sequence to avoid shellcheck warnings (suggested by Stefano Brivio). Signed-off-by: Fabian Frederick <fabf@xxxxxxxxx> --- V2: avoid shellcheck warnings .../testing/selftests/netfilter/nft_flowtable.sh | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) diff --git a/tools/testing/selftests/netfilter/nft_flowtable.sh b/tools/testing/selftests/netfilter/nft_flowtable.sh index 28e32fddf9b2c..dc05c99405979 100755 --- a/tools/testing/selftests/netfilter/nft_flowtable.sh +++ b/tools/testing/selftests/netfilter/nft_flowtable.sh @@ -96,10 +96,16 @@ do esac done -ip -net nsr1 link set veth0 mtu $omtu +if ! ip -net nsr1 link set veth0 mtu $omtu; then + exit 1 +fi + ip -net ns1 link set eth0 mtu $omtu -ip -net nsr2 link set veth1 mtu $rmtu +if ! ip -net nsr2 link set veth1 mtu $rmtu; then + exit 1 +fi + ip -net ns2 link set eth0 mtu $rmtu # transfer-net between nsr1 and nsr2. @@ -120,7 +126,10 @@ for i in 1 2; do ip -net ns$i route add default via 10.0.$i.1 ip -net ns$i addr add dead:$i::99/64 dev eth0 ip -net ns$i route add default via dead:$i::1 - ip netns exec ns$i sysctl net.ipv4.tcp_no_metrics_save=1 > /dev/null + if ! ip netns exec ns$i sysctl net.ipv4.tcp_no_metrics_save=1 > /dev/null; then + echo "ERROR: Check Originator/Responder values (problem during address addition)" + exit 1 + fi # don't set ip DF bit for first two tests ip netns exec ns$i sysctl net.ipv4.ip_no_pmtu_disc=1 > /dev/null -- 2.27.0
