#!/bin/bash # # This test is for checking rtnetlink callpaths, and get as much coverage as possible. # # set -e devdummy="test-dummy0" ret=0 # Kselftest framework requirement - SKIP code is 4. ksft_skip=4 # set global exit status, but never reset nonzero one. check_err() { if [ $ret -eq 0 ]; then ret=$1 fi } # same but inverted -- used when command must fail for test to pass check_fail() { if [ $1 -eq 0 ]; then ret=1 fi } kci_add_dummy() { ip link add name "$devdummy" type dummy check_err $? ip link set "$devdummy" up check_err $? } kci_del_dummy() { ip link del dev "$devdummy" check_err $? } kci_test_netconf() { dev="$1" r=$ret ip netconf show dev "$dev" > /dev/null check_err $? for f in 4 6; do ip -$f netconf show dev "$dev" > /dev/null check_err $? done if [ $ret -ne 0 ] ;then echo "FAIL: ip netconf show $dev" test $r -eq 0 && ret=0 return 1 fi } # add a bridge with vlans on top kci_test_bridge() { devbr="test-br0" vlandev="testbr-vlan1" ret=0 ip link add name "$devbr" type bridge check_err $? ip link set dev "$devdummy" master "$devbr" check_err $? ip link set "$devbr" up check_err $? ip link add link "$devbr" name "$vlandev" type vlan id 1 check_err $? ip addr add dev "$vlandev" 10.200.7.23/30 check_err $? ip -6 addr add dev "$vlandev" dead:42::1234/64 check_err $? ip -d link > /dev/null check_err $? ip r s t all > /dev/null check_err $? for name in "$devbr" "$vlandev" "$devdummy" ; do kci_test_netconf "$name" done ip -6 addr del dev "$vlandev" dead:42::1234/64 check_err $? ip link del dev "$vlandev" check_err $? ip link del dev "$devbr" check_err $? if [ $ret -ne 0 ];then echo "FAIL: bridge setup" return 1 fi echo "PASS: bridge setup" } kci_test_gre() { gredev=neta rem=10.42.42.1 loc=10.0.0.1 ret=0 ip tunnel add $gredev mode gre remote $rem local $loc ttl 1 check_err $? ip link set $gredev up check_err $? ip addr add 10.23.7.10 dev $gredev check_err $? ip route add 10.23.8.0/30 dev $gredev check_err $? ip addr add dev "$devdummy" 10.23.7.11/24 check_err $? ip link > /dev/null check_err $? ip addr > /dev/null check_err $? kci_test_netconf "$gredev" ip addr del dev "$devdummy" 10.23.7.11/24 check_err $? ip link del $gredev check_err $? if [ $ret -ne 0 ];then echo "FAIL: gre tunnel endpoint" return 1 fi echo "PASS: gre tunnel endpoint" } # tc uses rtnetlink too, for full tc testing # please see tools/testing/selftests/tc-testing. kci_test_tc() { dev=lo ret=0 tc qdisc add dev "$dev" root handle 1: htb check_err $? tc class add dev "$dev" parent 1: classid 1:10 htb rate 1mbit check_err $? tc filter add dev "$dev" parent 1:0 prio 5 handle ffe: protocol ip u32 divisor 256 check_err $? tc filter add dev "$dev" parent 1:0 prio 5 handle ffd: protocol ip u32 divisor 256 check_err $? tc filter add dev "$dev" parent 1:0 prio 5 handle ffc: protocol ip u32 divisor 256 check_err $? tc filter add dev "$dev" protocol ip parent 1: prio 5 handle ffe:2:3 u32 ht ffe:2: match ip src 10.0.0.3 flowid 1:10 check_err $? tc filter add dev "$dev" protocol ip parent 1: prio 5 handle ffe:2:2 u32 ht ffe:2: match ip src 10.0.0.2 flowid 1:10 check_err $? tc filter show dev "$dev" parent 1:0 > /dev/null check_err $? tc filter del dev "$dev" protocol ip parent 1: prio 5 handle ffe:2:3 u32 check_err $? tc filter show dev "$dev" parent 1:0 > /dev/null check_err $? tc qdisc del dev "$dev" root handle 1: htb check_err $? if [ $ret -ne 0 ];then echo "FAIL: tc htb hierarchy" return 1 fi echo "PASS: tc htb hierarchy" } kci_test_polrouting() { ret=0 ip rule add fwmark 1 lookup 100 check_err $? ip route add local 0.0.0.0/0 dev lo table 100 check_err $? ip r s t all > /dev/null check_err $? ip rule del fwmark 1 lookup 100 check_err $? ip route del local 0.0.0.0/0 dev lo table 100 check_err $? if [ $ret -ne 0 ];then echo "FAIL: policy route test" return 1 fi echo "PASS: policy routing" } kci_test_route_get() { ret=0 ip route get 127.0.0.1 > /dev/null check_err $? ip route get 127.0.0.1 dev "$devdummy" > /dev/null check_err $? ip route get ::1 > /dev/null check_err $? ip route get fe80::1 dev "$devdummy" > /dev/null check_err $? ip route get 127.0.0.1 from 127.0.0.1 oif lo tos 0x1 mark 0x1 > /dev/null check_err $? ip route get ::1 from ::1 iif lo oif lo tos 0x1 mark 0x1 > /dev/null check_err $? ip addr add dev "$devdummy" 10.23.7.11/24 check_err $? ip route get 10.23.7.11 from 10.23.7.12 iif "$devdummy" > /dev/null check_err $? ip addr del dev "$devdummy" 10.23.7.11/24 check_err $? if [ $ret -ne 0 ];then echo "FAIL: route get" return 1 fi echo "PASS: route get" } kci_test_addrlabel() { ret=0 ip addrlabel add prefix dead::/64 dev lo label 1 check_err $? ip addrlabel list |grep -q "prefix dead::/64 dev lo label 1" check_err $? ip addrlabel del prefix dead::/64 dev lo label 1 2> /dev/null check_err $? ip addrlabel add prefix dead::/64 label 1 2> /dev/null check_err $? ip addrlabel del prefix dead::/64 label 1 2> /dev/null check_err $? # concurrent add/delete for i in $(seq 1 1000); do ip addrlabel add prefix 1c3::/64 label 12345 2>/dev/null done & for i in $(seq 1 1000); do ip addrlabel del prefix 1c3::/64 label 12345 2>/dev/null done wait ip addrlabel del prefix 1c3::/64 label 12345 2>/dev/null if [ $ret -ne 0 ];then echo "FAIL: ipv6 addrlabel" return 1 fi echo "PASS: ipv6 addrlabel" } kci_test_ifalias() { ret=0 namewant=$(uuidgen) syspathname="/sys/class/net/$devdummy/ifalias" ip link set dev "$devdummy" alias "$namewant" check_err $? if [ $ret -ne 0 ]; then echo "FAIL: cannot set interface alias of $devdummy to $namewant" return 1 fi ip link show "$devdummy" | grep -q "alias $namewant" check_err $? if [ -r "$syspathname" ] ; then read namehave < "$syspathname" if [ "$namewant" != "$namehave" ]; then echo "FAIL: did set ifalias $namewant but got $namehave" return 1 fi namewant=$(uuidgen) echo "$namewant" > "$syspathname" ip link show "$devdummy" | grep -q "alias $namewant" check_err $? # sysfs interface allows to delete alias again echo "" > "$syspathname" ip link show "$devdummy" | grep -q "alias $namewant" check_fail $? for i in $(seq 1 100); do uuidgen > "$syspathname" & done wait # re-add the alias -- kernel should free mem when dummy dev is removed ip link set dev "$devdummy" alias "$namewant" check_err $? fi if [ $ret -ne 0 ]; then echo "FAIL: set interface alias $devdummy to $namewant" return 1 fi echo "PASS: set ifalias $namewant for $devdummy" } kci_test_vrf() { vrfname="test-vrf" ret=0 ip link show type vrf 2>/dev/null if [ $? -ne 0 ]; then echo "SKIP: vrf: iproute2 too old" return $ksft_skip fi ip link add "$vrfname" type vrf table 10 check_err $? if [ $ret -ne 0 ];then echo "FAIL: can't add vrf interface, skipping test" return 0 fi ip -br link show type vrf | grep -q "$vrfname" check_err $? if [ $ret -ne 0 ];then echo "FAIL: created vrf device not found" return 1 fi ip link set dev "$vrfname" up check_err $? ip link set dev "$devdummy" master "$vrfname" check_err $? ip link del dev "$vrfname" check_err $? if [ $ret -ne 0 ];then echo "FAIL: vrf" return 1 fi echo "PASS: vrf" } kci_test_encap_vxlan() { ret=0 vxlan="test-vxlan0" vlan="test-vlan0" testns="$1" ip netns exec "$testns" ip link add "$vxlan" type vxlan id 42 group 239.1.1.1 \ dev "$devdummy" dstport 4789 2>/dev/null if [ $? -ne 0 ]; then echo "FAIL: can't add vxlan interface, skipping test" return 0 fi check_err $? ip netns exec "$testns" ip addr add 10.2.11.49/24 dev "$vxlan" check_err $? ip netns exec "$testns" ip link set up dev "$vxlan" check_err $? ip netns exec "$testns" ip link add link "$vxlan" name "$vlan" type vlan id 1 check_err $? ip netns exec "$testns" ip link del "$vxlan" check_err $? if [ $ret -ne 0 ]; then echo "FAIL: vxlan" return 1 fi echo "PASS: vxlan" } kci_test_encap_fou() { ret=0 name="test-fou" testns="$1" ip fou help 2>&1 |grep -q 'Usage: ip fou' if [ $? -ne 0 ];then echo "SKIP: fou: iproute2 too old" return $ksft_skip fi ip netns exec "$testns" ip fou add port 7777 ipproto 47 2>/dev/null if [ $? -ne 0 ];then echo "FAIL: can't add fou port 7777, skipping test" return 1 fi ip netns exec "$testns" ip fou add port 8888 ipproto 4 check_err $? ip netns exec "$testns" ip fou del port 9999 2>/dev/null check_fail $? ip netns exec "$testns" ip fou del port 7777 check_err $? if [ $ret -ne 0 ]; then echo "FAIL: fou" return 1 fi echo "PASS: fou" } # test various encap methods, use netns to avoid unwanted interference kci_test_encap() { testns="testns" ret=0 ip netns add "$testns" if [ $? -ne 0 ]; then echo "SKIP encap tests: cannot add net namespace $testns" return $ksft_skip fi ip netns exec "$testns" ip link set lo up check_err $? ip netns exec "$testns" ip link add name "$devdummy" type dummy check_err $? ip netns exec "$testns" ip link set "$devdummy" up check_err $? kci_test_encap_vxlan "$testns" kci_test_encap_fou "$testns" ip netns del "$testns" } kci_test_macsec() { msname="test_macsec0" ret=0 ip macsec help 2>&1 | grep -q "^Usage: ip macsec" if [ $? -ne 0 ]; then echo "SKIP: macsec: iproute2 too old" return $ksft_skip fi ip link add link "$devdummy" "$msname" type macsec port 42 encrypt on check_err $? if [ $ret -ne 0 ];then echo "FAIL: can't add macsec interface, skipping test" return 1 fi ip macsec add "$msname" tx sa 0 pn 1024 on key 01 12345678901234567890123456789012 check_err $? ip macsec add "$msname" rx port 1234 address "1c:ed:de:ad:be:ef" check_err $? ip macsec add "$msname" rx port 1234 address "1c:ed:de:ad:be:ef" sa 0 pn 1 on key 00 0123456789abcdef0123456789abcdef check_err $? ip macsec show > /dev/null check_err $? ip link del dev "$msname" check_err $? if [ $ret -ne 0 ];then echo "FAIL: macsec" return 1 fi echo "PASS: macsec" } #------------------------------------------------------------------- # Example commands # ip x s add proto esp src 14.0.0.52 dst 14.0.0.70 \ # spi 0x07 mode transport reqid 0x07 replay-window 32 \ # aead 'rfc4106(gcm(aes))' 1234567890123456dcba 128 \ # sel src 14.0.0.52/24 dst 14.0.0.70/24 # ip x p add dir out src 14.0.0.52/24 dst 14.0.0.70/24 \ # tmpl proto esp src 14.0.0.52 dst 14.0.0.70 \ # spi 0x07 mode transport reqid 0x07 # # Subcommands not tested # ip x s update # ip x s allocspi # ip x s deleteall # ip x p update # ip x p deleteall # ip x p set #------------------------------------------------------------------- kci_test_ipsec() { ret=0 algo="aead rfc4106(gcm(aes)) 0x3132333435363738393031323334353664636261 128" srcip=192.168.123.1 dstip=192.168.123.2 spi=7 ip addr add $srcip dev $devdummy # flush to be sure there's nothing configured ip x s flush ; ip x p flush check_err $? # start the monitor in the background tmpfile=`mktemp /var/run/ipsectestXXX` mpid=`(ip x m > $tmpfile & echo $!) 2>/dev/null` sleep 0.2 ipsecid="proto esp src $srcip dst $dstip spi 0x07" ip x s add $ipsecid \ mode transport reqid 0x07 replay-window 32 \ $algo sel src $srcip/24 dst $dstip/24 check_err $? lines=`ip x s list | grep $srcip | grep $dstip | wc -l` test $lines -eq 2 check_err $? ip x s count | grep -q "SAD count 1" check_err $? lines=`ip x s get $ipsecid | grep $srcip | grep $dstip | wc -l` test $lines -eq 2 check_err $? ip x s delete $ipsecid check_err $? lines=`ip x s list | wc -l` test $lines -eq 0 check_err $? ipsecsel="dir out src $srcip/24 dst $dstip/24" ip x p add $ipsecsel \ tmpl proto esp src $srcip dst $dstip \ spi 0x07 mode transport reqid 0x07 check_err $? lines=`ip x p list | grep $srcip | grep $dstip | wc -l` test $lines -eq 2 check_err $? ip x p count | grep -q "SPD IN 0 OUT 1 FWD 0" check_err $? lines=`ip x p get $ipsecsel | grep $srcip | grep $dstip | wc -l` test $lines -eq 2 check_err $? ip x p delete $ipsecsel check_err $? lines=`ip x p list | wc -l` test $lines -eq 0 check_err $? # check the monitor results kill $mpid lines=`wc -l $tmpfile | cut "-d " -f1` test $lines -eq 20 check_err $? rm -rf $tmpfile # clean up any leftovers ip x s flush check_err $? ip x p flush check_err $? ip addr del $srcip/32 dev $devdummy if [ $ret -ne 0 ]; then echo "FAIL: ipsec" return 1 fi echo "PASS: ipsec" } #------------------------------------------------------------------- # Example commands # ip x s add proto esp src 14.0.0.52 dst 14.0.0.70 \ # spi 0x07 mode transport reqid 0x07 replay-window 32 \ # aead 'rfc4106(gcm(aes))' 1234567890123456dcba 128 \ # sel src 14.0.0.52/24 dst 14.0.0.70/24 # offload dev sim1 dir out # ip x p add dir out src 14.0.0.52/24 dst 14.0.0.70/24 \ # tmpl proto esp src 14.0.0.52 dst 14.0.0.70 \ # spi 0x07 mode transport reqid 0x07 # #------------------------------------------------------------------- kci_test_ipsec_offload() { ret=0 algo="aead rfc4106(gcm(aes)) 0x3132333435363738393031323334353664636261 128" srcip=192.168.123.3 dstip=192.168.123.4 dev=simx1 sysfsd=/sys/kernel/debug/netdevsim/$dev sysfsf=$sysfsd/ipsec # setup netdevsim since dummydev doesn't have offload support modprobe netdevsim check_err $? if [ $ret -ne 0 ]; then echo "FAIL: ipsec_offload can't load netdevsim" return 1 fi ip link add $dev type netdevsim ip addr add $srcip dev $dev ip link set $dev up if [ ! -d $sysfsd ] ; then echo "FAIL: ipsec_offload can't create device $dev" return 1 fi if [ ! -f $sysfsf ] ; then echo "FAIL: ipsec_offload netdevsim doesn't support IPsec offload" return 1 fi # flush to be sure there's nothing configured ip x s flush ; ip x p flush # create offloaded SAs, both in and out ip x p add dir out src $srcip/24 dst $dstip/24 \ tmpl proto esp src $srcip dst $dstip spi 9 \ mode transport reqid 42 check_err $? ip x p add dir out src $dstip/24 dst $srcip/24 \ tmpl proto esp src $dstip dst $srcip spi 9 \ mode transport reqid 42 check_err $? ip x s add proto esp src $srcip dst $dstip spi 9 \ mode transport reqid 42 $algo sel src $srcip/24 dst $dstip/24 \ offload dev $dev dir out check_err $? ip x s add proto esp src $dstip dst $srcip spi 9 \ mode transport reqid 42 $algo sel src $dstip/24 dst $srcip/24 \ offload dev $dev dir in check_err $? if [ $ret -ne 0 ]; then echo "FAIL: ipsec_offload can't create SA" return 1 fi # does offload show up in ip output lines=`ip x s list | grep -c "crypto offload parameters: dev $dev dir"` if [ $lines -ne 2 ] ; then echo "FAIL: ipsec_offload SA offload missing from list output" check_err 1 fi # use ping to exercise the Tx path ping -I $dev -c 3 -W 1 -i 0 $dstip >/dev/null # does driver have correct offload info diff $sysfsf - << EOF SA count=2 tx=3 sa[0] tx ipaddr=0x00000000 00000000 00000000 00000000 sa[0] spi=0x00000009 proto=0x32 salt=0x61626364 crypt=1 sa[0] key=0x34333231 38373635 32313039 36353433 sa[1] rx ipaddr=0x00000000 00000000 00000000 037ba8c0 sa[1] spi=0x00000009 proto=0x32 salt=0x61626364 crypt=1 sa[1] key=0x34333231 38373635 32313039 36353433 EOF if [ $? -ne 0 ] ; then echo "FAIL: ipsec_offload incorrect driver data" check_err 1 fi # does offload get removed from driver ip x s flush ip x p flush lines=`grep -c "SA count=0" $sysfsf` if [ $lines -ne 1 ] ; then echo "FAIL: ipsec_offload SA not removed from driver" check_err 1 fi # clean up any leftovers ip link del $dev rmmod netdevsim if [ $ret -ne 0 ]; then echo "FAIL: ipsec_offload" return 1 fi echo "PASS: ipsec_offload" } kci_test_gretap() { testns="testns" DEV_NS=gretap00 ret=0 ip netns add "$testns" if [ $? -ne 0 ]; then echo "SKIP gretap tests: cannot add net namespace $testns" return $ksft_skip fi ip link help gretap 2>&1 | grep -q "^Usage:" if [ $? -ne 0 ];then echo "SKIP: gretap: iproute2 too old" ip netns del "$testns" return $ksft_skip fi # test native tunnel ip netns exec "$testns" ip link add dev "$DEV_NS" type gretap seq \ key 102 local 172.16.1.100 remote 172.16.1.200 check_err $? ip netns exec "$testns" ip addr add dev "$DEV_NS" 10.1.1.100/24 check_err $? ip netns exec "$testns" ip link set dev $DEV_NS up check_err $? ip netns exec "$testns" ip link del "$DEV_NS" check_err $? # test external mode ip netns exec "$testns" ip link add dev "$DEV_NS" type gretap external check_err $? ip netns exec "$testns" ip link del "$DEV_NS" check_err $? if [ $ret -ne 0 ]; then echo "FAIL: gretap" ip netns del "$testns" return 1 fi echo "PASS: gretap" ip netns del "$testns" } kci_test_ip6gretap() { testns="testns" DEV_NS=ip6gretap00 ret=0 ip netns add "$testns" if [ $? -ne 0 ]; then echo "SKIP ip6gretap tests: cannot add net namespace $testns" return $ksft_skip fi ip link help ip6gretap 2>&1 | grep -q "^Usage:" if [ $? -ne 0 ];then echo "SKIP: ip6gretap: iproute2 too old" ip netns del "$testns" return $ksft_skip fi # test native tunnel ip netns exec "$testns" ip link add dev "$DEV_NS" type ip6gretap seq \ key 102 local fc00:100::1 remote fc00:100::2 check_err $? ip netns exec "$testns" ip addr add dev "$DEV_NS" fc00:200::1/96 check_err $? ip netns exec "$testns" ip link set dev $DEV_NS up check_err $? ip netns exec "$testns" ip link del "$DEV_NS" check_err $? # test external mode ip netns exec "$testns" ip link add dev "$DEV_NS" type ip6gretap external check_err $? ip netns exec "$testns" ip link del "$DEV_NS" check_err $? if [ $ret -ne 0 ]; then echo "FAIL: ip6gretap" ip netns del "$testns" return 1 fi echo "PASS: ip6gretap" ip netns del "$testns" } kci_test_erspan() { testns="testns" DEV_NS=erspan00 ret=0 ip link help erspan 2>&1 | grep -q "^Usage:" if [ $? -ne 0 ];then echo "SKIP: erspan: iproute2 too old" return $ksft_skip fi ip netns add "$testns" if [ $? -ne 0 ]; then echo "SKIP erspan tests: cannot add net namespace $testns" return $ksft_skip fi # test native tunnel erspan v1 ip netns exec "$testns" ip link add dev "$DEV_NS" type erspan seq \ key 102 local 172.16.1.100 remote 172.16.1.200 \ erspan_ver 1 erspan 488 check_err $? ip netns exec "$testns" ip addr add dev "$DEV_NS" 10.1.1.100/24 check_err $? ip netns exec "$testns" ip link set dev $DEV_NS up check_err $? ip netns exec "$testns" ip link del "$DEV_NS" check_err $? # test native tunnel erspan v2 ip netns exec "$testns" ip link add dev "$DEV_NS" type erspan seq \ key 102 local 172.16.1.100 remote 172.16.1.200 \ erspan_ver 2 erspan_dir ingress erspan_hwid 7 check_err $? ip netns exec "$testns" ip addr add dev "$DEV_NS" 10.1.1.100/24 check_err $? ip netns exec "$testns" ip link set dev $DEV_NS up check_err $? ip netns exec "$testns" ip link del "$DEV_NS" check_err $? # test external mode ip netns exec "$testns" ip link add dev "$DEV_NS" type erspan external check_err $? ip netns exec "$testns" ip link del "$DEV_NS" check_err $? if [ $ret -ne 0 ]; then echo "FAIL: erspan" ip netns del "$testns" return 1 fi echo "PASS: erspan" ip netns del "$testns" } kci_test_ip6erspan() { testns="testns" DEV_NS=ip6erspan00 ret=0 ip link help ip6erspan 2>&1 | grep -q "^Usage:" if [ $? -ne 0 ];then echo "SKIP: ip6erspan: iproute2 too old" return $ksft_skip fi ip netns add "$testns" if [ $? -ne 0 ]; then echo "SKIP ip6erspan tests: cannot add net namespace $testns" return $ksft_skip fi # test native tunnel ip6erspan v1 ip netns exec "$testns" ip link add dev "$DEV_NS" type ip6erspan seq \ key 102 local fc00:100::1 remote fc00:100::2 \ erspan_ver 1 erspan 488 check_err $? ip netns exec "$testns" ip addr add dev "$DEV_NS" 10.1.1.100/24 check_err $? ip netns exec "$testns" ip link set dev $DEV_NS up check_err $? ip netns exec "$testns" ip link del "$DEV_NS" check_err $? # test native tunnel ip6erspan v2 ip netns exec "$testns" ip link add dev "$DEV_NS" type ip6erspan seq \ key 102 local fc00:100::1 remote fc00:100::2 \ erspan_ver 2 erspan_dir ingress erspan_hwid 7 check_err $? ip netns exec "$testns" ip addr add dev "$DEV_NS" 10.1.1.100/24 check_err $? ip netns exec "$testns" ip link set dev $DEV_NS up check_err $? ip netns exec "$testns" ip link del "$DEV_NS" check_err $? # test external mode ip netns exec "$testns" ip link add dev "$DEV_NS" \ type ip6erspan external check_err $? ip netns exec "$testns" ip link del "$DEV_NS" check_err $? if [ $ret -ne 0 ]; then echo "FAIL: ip6erspan" ip netns del "$testns" return 1 fi echo "PASS: ip6erspan" ip netns del "$testns" } kci_test_rtnl() { kci_add_dummy if [ $ret -ne 0 ];then echo "FAIL: cannot add dummy interface" return 1 fi kci_test_polrouting kci_test_route_get kci_test_tc kci_test_gre kci_test_gretap kci_test_ip6gretap kci_test_erspan kci_test_ip6erspan kci_test_bridge kci_test_addrlabel kci_test_ifalias kci_test_vrf kci_test_encap kci_test_macsec kci_test_ipsec kci_test_ipsec_offload kci_del_dummy } #check for needed privileges if [ "$(id -u)" -ne 0 ];then echo "SKIP: Need root privileges" exit $ksft_skip fi for x in ip tc;do $x -Version 2>/dev/null >/dev/null if [ $? -ne 0 ];then echo "SKIP: Could not run test without the $x tool" exit $ksft_skip fi done kci_test_rtnl exit $ret