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Commit b95367e3 authored by David S. Miller's avatar David S. Miller
Browse files

Merge branch 'selftests-fib_tests-simplifications-verbosity-and-a-race' 



David Ahern says:

====================
selftests: fib_tests: simplifications, verbosity and a race

Improve efficiency of fib_tests.sh and make the test result more verbose,
from this summary:
$ fib_tests.sh is failing in a VM:
    $ fib_tests.sh
    Running netdev unregister tests
    PASS: unicast route test
    PASS: multipath route test
    Running netdev down tests
    PASS: unicast route test
    PASS: multipath route test
    Running netdev carrier change tests
    PASS: local route carrier test
    FAIL: unicast route carrier test

where a single entry actually corresponds to many checks to a much more
verbse output that clarifies test cases:
$fib_tests.sh
Single path route carrier test
    ....
    Carrier down
        IPv4 fibmatch                                         [ OK ]
        IPv6 fibmatch                                         [ OK ]
        IPv4 linkdown flag set                                [FAIL]
        IPv6 linkdown flag set                                [FAIL]
    Second address added with carrier down
        IPv4 fibmatch                                         [ OK ]
        IPv6 fibmatch                                         [ OK ]
        IPv4 linkdown flag set                                [FAIL]
        IPv6 linkdown flag set                                [ OK ]

And then fix the race in changing carrier down on dummy device to checking
the corresponding routes.
====================

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parents 8c2ceabe e2ba732a

tools/testing/selftests/net/fib_tests.sh

+237 −246
Original line number Diff line number Diff line
@@ -6,154 +6,155 @@ 


ret=0



check_err()

{

	if [ $ret -eq 0 ]; then

		ret=$1

	fi

}

PAUSE_ON_FAIL=${PAUSE_ON_FAIL:=no}



check_fail()

log_test()

{

	if [ $1 -eq 0 ]; then

	local rc=$1

	local expected=$2

	local msg="$3"



	if [ ${rc} -eq ${expected} ]; then

		printf "        %-60s  [ OK ]\n" "${msg}"

	else

		ret=1

		printf "        %-60s  [FAIL]\n" "${msg}"

		if [ "${PAUSE_ON_FAIL}" = "yes" ]; then

		echo

			echo "hit enter to continue, 'q' to quit"

			read a

			[ "$a" = "q" ] && exit 1

		fi

	fi

}



netns_create()

setup()

{

	local testns=$1

	set -e

	ip netns add testns

	ip -netns testns link set dev lo up



	ip -netns testns link add dummy0 type dummy

	ip -netns testns link set dev dummy0 up

	ip -netns testns address add 198.51.100.1/24 dev dummy0

	ip -netns testns -6 address add 2001:db8:1::1/64 dev dummy0

	set +e



	ip netns add $testns

	ip netns exec $testns ip link set dev lo up

}



fib_unreg_unicast_test()

cleanup()

{

	ret=0



	netns_create "testns"



	ip netns exec testns ip link add dummy0 type dummy

	ip netns exec testns ip link set dev dummy0 up

	ip -netns testns link del dev dummy0 &> /dev/null

	ip netns del testns

}



	ip netns exec testns ip address add 198.51.100.1/24 dev dummy0

	ip netns exec testns ip -6 address add 2001:db8:1::1/64 dev dummy0

fib_unreg_unicast_test()

{

	echo

	echo "Single path route test"



	ip netns exec testns ip route get fibmatch 198.51.100.2 &> /dev/null

	check_err $?

	ip netns exec testns ip -6 route get fibmatch 2001:db8:1::2 &> /dev/null

	check_err $?

	setup



	ip netns exec testns ip link del dev dummy0

	check_err $?

	echo "    Start point"

	ip -netns testns route get fibmatch 198.51.100.2 &> /dev/null

	log_test $? 0 "IPv4 fibmatch"

	ip -netns testns -6 route get fibmatch 2001:db8:1::2 &> /dev/null

	log_test $? 0 "IPv6 fibmatch"



	ip netns exec testns ip route get fibmatch 198.51.100.2 &> /dev/null

	check_fail $?

	ip netns exec testns ip -6 route get fibmatch 2001:db8:1::2 &> /dev/null

	check_fail $?

	set -e

	ip -netns testns link del dev dummy0

	set +e



	ip netns del testns

	echo "    Nexthop device deleted"

	ip -netns testns route get fibmatch 198.51.100.2 &> /dev/null

	log_test $? 2 "IPv4 fibmatch - no route"

	ip -netns testns -6 route get fibmatch 2001:db8:1::2 &> /dev/null

	log_test $? 2 "IPv6 fibmatch - no route"



	if [ $ret -ne 0 ]; then

		echo "FAIL: unicast route test"

		return 1

	fi

	echo "PASS: unicast route test"

	cleanup

}



fib_unreg_multipath_test()

{

	ret=0



	netns_create "testns"



	ip netns exec testns ip link add dummy0 type dummy

	ip netns exec testns ip link set dev dummy0 up

	echo

	echo "Multipath route test"



	ip netns exec testns ip link add dummy1 type dummy

	ip netns exec testns ip link set dev dummy1 up

	setup



	ip netns exec testns ip address add 198.51.100.1/24 dev dummy0

	ip netns exec testns ip -6 address add 2001:db8:1::1/64 dev dummy0

	set -e

	ip -netns testns link add dummy1 type dummy

	ip -netns testns link set dev dummy1 up

	ip -netns testns address add 192.0.2.1/24 dev dummy1

	ip -netns testns -6 address add 2001:db8:2::1/64 dev dummy1



	ip netns exec testns ip address add 192.0.2.1/24 dev dummy1

	ip netns exec testns ip -6 address add 2001:db8:2::1/64 dev dummy1



	ip netns exec testns ip route add 203.0.113.0/24 \

	ip -netns testns route add 203.0.113.0/24 \

		nexthop via 198.51.100.2 dev dummy0 \

		nexthop via 192.0.2.2 dev dummy1

	ip netns exec testns ip -6 route add 2001:db8:3::/64 \

	ip -netns testns -6 route add 2001:db8:3::/64 \

		nexthop via 2001:db8:1::2 dev dummy0 \

		nexthop via 2001:db8:2::2 dev dummy1

	set +e



	echo "    Start point"

	ip -netns testns route get fibmatch 203.0.113.1 &> /dev/null

	log_test $? 0 "IPv4 fibmatch"

	ip -netns testns -6 route get fibmatch 2001:db8:3::1 &> /dev/null

	log_test $? 0 "IPv6 fibmatch"



	ip netns exec testns ip route get fibmatch 203.0.113.1 &> /dev/null

	check_err $?

	ip netns exec testns ip -6 route get fibmatch 2001:db8:3::1 &> /dev/null

	check_err $?

	set -e

	ip -netns testns link del dev dummy0

	set +e



	ip netns exec testns ip link del dev dummy0

	check_err $?

	echo "    One nexthop device deleted"

	ip -netns testns route get fibmatch 203.0.113.1 &> /dev/null

	log_test $? 2 "IPv4 - multipath route removed on delete"



	ip netns exec testns ip route get fibmatch 203.0.113.1 &> /dev/null

	check_fail $?

	ip netns exec testns ip -6 route get fibmatch 2001:db8:3::1 &> /dev/null

	ip -netns testns -6 route get fibmatch 2001:db8:3::1 &> /dev/null

	# In IPv6 we do not flush the entire multipath route.

	check_err $?

	log_test $? 0 "IPv6 - multipath down to single path"



	ip netns exec testns ip link del dev dummy1

	set -e

	ip -netns testns link del dev dummy1

	set +e



	ip netns del testns

	echo "    Second nexthop device deleted"

	ip -netns testns -6 route get fibmatch 2001:db8:3::1 &> /dev/null

	log_test $? 2 "IPv6 - no route"



	if [ $ret -ne 0 ]; then

		echo "FAIL: multipath route test"

		return 1

	fi

	echo "PASS: multipath route test"

	cleanup

}



fib_unreg_test()

{

	echo "Running netdev unregister tests"



	fib_unreg_unicast_test

	fib_unreg_multipath_test

}



fib_down_unicast_test()

{

	ret=0



	netns_create "testns"

	echo

	echo "Single path, admin down"



	ip netns exec testns ip link add dummy0 type dummy

	ip netns exec testns ip link set dev dummy0 up

	setup



	ip netns exec testns ip address add 198.51.100.1/24 dev dummy0

	ip netns exec testns ip -6 address add 2001:db8:1::1/64 dev dummy0

	echo "    Start point"

	ip -netns testns route get fibmatch 198.51.100.2 &> /dev/null

	log_test $? 0 "IPv4 fibmatch"

	ip -netns testns -6 route get fibmatch 2001:db8:1::2 &> /dev/null

	log_test $? 0 "IPv6 fibmatch"



	ip netns exec testns ip route get fibmatch 198.51.100.2 &> /dev/null

	check_err $?

	ip netns exec testns ip -6 route get fibmatch 2001:db8:1::2 &> /dev/null

	check_err $?

	set -e

	ip -netns testns link set dev dummy0 down

	set +e



	ip netns exec testns ip link set dev dummy0 down

	check_err $?

	echo "    Route deleted on down"

	ip -netns testns route get fibmatch 198.51.100.2 &> /dev/null

	log_test $? 2 "IPv4 fibmatch"

	ip -netns testns -6 route get fibmatch 2001:db8:1::2 &> /dev/null

	log_test $? 2 "IPv6 fibmatch"



	ip netns exec testns ip route get fibmatch 198.51.100.2 &> /dev/null

	check_fail $?

	ip netns exec testns ip -6 route get fibmatch 2001:db8:1::2 &> /dev/null

	check_fail $?



	ip netns exec testns ip link del dev dummy0



	ip netns del testns



	if [ $ret -ne 0 ]; then

		echo "FAIL: unicast route test"

		return 1

	fi

	echo "PASS: unicast route test"

	cleanup

}



fib_down_multipath_test_do()
@@ -161,242 +162,229 @@ fib_down_multipath_test_do() 
	local down_dev=$1

	local up_dev=$2



	ip netns exec testns ip route get fibmatch 203.0.113.1 \

	ip -netns testns route get fibmatch 203.0.113.1 \

		oif $down_dev &> /dev/null

	check_fail $?

	ip netns exec testns ip -6 route get fibmatch 2001:db8:3::1 \

	log_test $? 2 "IPv4 fibmatch on down device"

	ip -netns testns -6 route get fibmatch 2001:db8:3::1 \

		oif $down_dev &> /dev/null

	check_fail $?

	log_test $? 2 "IPv6 fibmatch on down device"



	ip netns exec testns ip route get fibmatch 203.0.113.1 \

	ip -netns testns route get fibmatch 203.0.113.1 \

		oif $up_dev &> /dev/null

	check_err $?

	ip netns exec testns ip -6 route get fibmatch 2001:db8:3::1 \

	log_test $? 0 "IPv4 fibmatch on up device"

	ip -netns testns -6 route get fibmatch 2001:db8:3::1 \

		oif $up_dev &> /dev/null

	check_err $?

	log_test $? 0 "IPv6 fibmatch on up device"



	ip netns exec testns ip route get fibmatch 203.0.113.1 | \

	ip -netns testns route get fibmatch 203.0.113.1 | \

		grep $down_dev | grep -q "dead linkdown"

	check_err $?

	ip netns exec testns ip -6 route get fibmatch 2001:db8:3::1 | \

	log_test $? 0 "IPv4 flags on down device"

	ip -netns testns -6 route get fibmatch 2001:db8:3::1 | \

		grep $down_dev | grep -q "dead linkdown"

	check_err $?

	log_test $? 0 "IPv6 flags on down device"



	ip netns exec testns ip route get fibmatch 203.0.113.1 | \

	ip -netns testns route get fibmatch 203.0.113.1 | \

		grep $up_dev | grep -q "dead linkdown"

	check_fail $?

	ip netns exec testns ip -6 route get fibmatch 2001:db8:3::1 | \

	log_test $? 1 "IPv4 flags on up device"

	ip -netns testns -6 route get fibmatch 2001:db8:3::1 | \

		grep $up_dev | grep -q "dead linkdown"

	check_fail $?

	log_test $? 1 "IPv6 flags on up device"

}



fib_down_multipath_test()

{

	ret=0



	netns_create "testns"

	echo

	echo "Admin down multipath"



	ip netns exec testns ip link add dummy0 type dummy

	ip netns exec testns ip link set dev dummy0 up

	setup



	ip netns exec testns ip link add dummy1 type dummy

	ip netns exec testns ip link set dev dummy1 up

	set -e

	ip -netns testns link add dummy1 type dummy

	ip -netns testns link set dev dummy1 up



	ip netns exec testns ip address add 198.51.100.1/24 dev dummy0

	ip netns exec testns ip -6 address add 2001:db8:1::1/64 dev dummy0

	ip -netns testns address add 192.0.2.1/24 dev dummy1

	ip -netns testns -6 address add 2001:db8:2::1/64 dev dummy1



	ip netns exec testns ip address add 192.0.2.1/24 dev dummy1

	ip netns exec testns ip -6 address add 2001:db8:2::1/64 dev dummy1



	ip netns exec testns ip route add 203.0.113.0/24 \

	ip -netns testns route add 203.0.113.0/24 \

		nexthop via 198.51.100.2 dev dummy0 \

		nexthop via 192.0.2.2 dev dummy1

	ip netns exec testns ip -6 route add 2001:db8:3::/64 \

	ip -netns testns -6 route add 2001:db8:3::/64 \

		nexthop via 2001:db8:1::2 dev dummy0 \

		nexthop via 2001:db8:2::2 dev dummy1

	set +e



	echo "    Verify start point"

	ip -netns testns route get fibmatch 203.0.113.1 &> /dev/null

	log_test $? 0 "IPv4 fibmatch"



	ip netns exec testns ip route get fibmatch 203.0.113.1 &> /dev/null

	check_err $?

	ip netns exec testns ip -6 route get fibmatch 2001:db8:3::1 &> /dev/null

	check_err $?

	ip -netns testns -6 route get fibmatch 2001:db8:3::1 &> /dev/null

	log_test $? 0 "IPv6 fibmatch"



	ip netns exec testns ip link set dev dummy0 down

	check_err $?

	set -e

	ip -netns testns link set dev dummy0 down

	set +e



	echo "    One device down, one up"

	fib_down_multipath_test_do "dummy0" "dummy1"



	ip netns exec testns ip link set dev dummy0 up

	check_err $?

	ip netns exec testns ip link set dev dummy1 down

	check_err $?

	set -e

	ip -netns testns link set dev dummy0 up

	ip -netns testns link set dev dummy1 down

	set +e



	echo "    Other device down and up"

	fib_down_multipath_test_do "dummy1" "dummy0"



	ip netns exec testns ip link set dev dummy0 down

	check_err $?



	ip netns exec testns ip route get fibmatch 203.0.113.1 &> /dev/null

	check_fail $?

	ip netns exec testns ip -6 route get fibmatch 2001:db8:3::1 &> /dev/null

	check_fail $?

	set -e

	ip -netns testns link set dev dummy0 down

	set +e



	ip netns exec testns ip link del dev dummy1

	ip netns exec testns ip link del dev dummy0

	echo "    Both devices down"

	ip -netns testns route get fibmatch 203.0.113.1 &> /dev/null

	log_test $? 2 "IPv4 fibmatch"

	ip -netns testns -6 route get fibmatch 2001:db8:3::1 &> /dev/null

	log_test $? 2 "IPv6 fibmatch"



	ip netns del testns



	if [ $ret -ne 0 ]; then

		echo "FAIL: multipath route test"

		return 1

	fi

	echo "PASS: multipath route test"

	ip -netns testns link del dev dummy1

	cleanup

}



fib_down_test()

{

	echo "Running netdev down tests"



	fib_down_unicast_test

	fib_down_multipath_test

}



# Local routes should not be affected when carrier changes.

fib_carrier_local_test()

{

	ret=0

	echo

	echo "Local carrier tests - single path"



	# Local routes should not be affected when carrier changes.

	netns_create "testns"

	setup



	ip netns exec testns ip link add dummy0 type dummy

	ip netns exec testns ip link set dev dummy0 up

	set -e

	ip -netns testns link set dev dummy0 carrier on

	set +e



	ip netns exec testns ip link set dev dummy0 carrier on

	echo "    Start point"

	ip -netns testns route get fibmatch 198.51.100.1 &> /dev/null

	log_test $? 0 "IPv4 fibmatch"

	ip -netns testns -6 route get fibmatch 2001:db8:1::1 &> /dev/null

	log_test $? 0 "IPv6 fibmatch"



	ip netns exec testns ip address add 198.51.100.1/24 dev dummy0

	ip netns exec testns ip -6 address add 2001:db8:1::1/64 dev dummy0



	ip netns exec testns ip route get fibmatch 198.51.100.1 &> /dev/null

	check_err $?

	ip netns exec testns ip -6 route get fibmatch 2001:db8:1::1 &> /dev/null

	check_err $?



	ip netns exec testns ip route get fibmatch 198.51.100.1 | \

	ip -netns testns route get fibmatch 198.51.100.1 | \

		grep -q "linkdown"

	check_fail $?

	ip netns exec testns ip -6 route get fibmatch 2001:db8:1::1 | \

	log_test $? 1 "IPv4 - no linkdown flag"

	ip -netns testns -6 route get fibmatch 2001:db8:1::1 | \

		grep -q "linkdown"

	check_fail $?

	log_test $? 1 "IPv6 - no linkdown flag"



	ip netns exec testns ip link set dev dummy0 carrier off

	set -e

	ip -netns testns link set dev dummy0 carrier off

	sleep 1

	set +e



	ip netns exec testns ip route get fibmatch 198.51.100.1 &> /dev/null

	check_err $?

	ip netns exec testns ip -6 route get fibmatch 2001:db8:1::1 &> /dev/null

	check_err $?

	echo "    Carrier off on nexthop"

	ip -netns testns route get fibmatch 198.51.100.1 &> /dev/null

	log_test $? 0 "IPv4 fibmatch"

	ip -netns testns -6 route get fibmatch 2001:db8:1::1 &> /dev/null

	log_test $? 0 "IPv6 fibmatch"



	ip netns exec testns ip route get fibmatch 198.51.100.1 | \

	ip -netns testns route get fibmatch 198.51.100.1 | \

		grep -q "linkdown"

	check_fail $?

	ip netns exec testns ip -6 route get fibmatch 2001:db8:1::1 | \

	log_test $? 1 "IPv4 - linkdown flag set"

	ip -netns testns -6 route get fibmatch 2001:db8:1::1 | \

		grep -q "linkdown"

	check_fail $?

	log_test $? 1 "IPv6 - linkdown flag set"



	ip netns exec testns ip address add 192.0.2.1/24 dev dummy0

	ip netns exec testns ip -6 address add 2001:db8:2::1/64 dev dummy0

	set -e

	ip -netns testns address add 192.0.2.1/24 dev dummy0

	ip -netns testns -6 address add 2001:db8:2::1/64 dev dummy0

	set +e



	ip netns exec testns ip route get fibmatch 192.0.2.1 &> /dev/null

	check_err $?

	ip netns exec testns ip -6 route get fibmatch 2001:db8:2::1 &> /dev/null

	check_err $?

	echo "    Route to local address with carrier down"

	ip -netns testns route get fibmatch 192.0.2.1 &> /dev/null

	log_test $? 0 "IPv4 fibmatch"

	ip -netns testns -6 route get fibmatch 2001:db8:2::1 &> /dev/null

	log_test $? 0 "IPv6 fibmatch"



	ip netns exec testns ip route get fibmatch 192.0.2.1 | \

	ip -netns testns route get fibmatch 192.0.2.1 | \

		grep -q "linkdown"

	check_fail $?

	ip netns exec testns ip -6 route get fibmatch 2001:db8:2::1 | \

	log_test $? 1 "IPv4 linkdown flag set"

	ip -netns testns -6 route get fibmatch 2001:db8:2::1 | \

		grep -q "linkdown"

	check_fail $?

	log_test $? 1 "IPv6 linkdown flag set"



	ip netns exec testns ip link del dev dummy0



	ip netns del testns



	if [ $ret -ne 0 ]; then

		echo "FAIL: local route carrier test"

		return 1

	fi

	echo "PASS: local route carrier test"

	cleanup

}



fib_carrier_unicast_test()

{

	ret=0



	netns_create "testns"



	ip netns exec testns ip link add dummy0 type dummy

	ip netns exec testns ip link set dev dummy0 up

	echo

	echo "Single path route carrier test"



	ip netns exec testns ip link set dev dummy0 carrier on

	setup



	ip netns exec testns ip address add 198.51.100.1/24 dev dummy0

	ip netns exec testns ip -6 address add 2001:db8:1::1/64 dev dummy0

	set -e

	ip -netns testns link set dev dummy0 carrier on

	set +e



	ip netns exec testns ip route get fibmatch 198.51.100.2 &> /dev/null

	check_err $?

	ip netns exec testns ip -6 route get fibmatch 2001:db8:1::2 &> /dev/null

	check_err $?

	echo "    Start point"

	ip -netns testns route get fibmatch 198.51.100.2 &> /dev/null

	log_test $? 0 "IPv4 fibmatch"

	ip -netns testns -6 route get fibmatch 2001:db8:1::2 &> /dev/null

	log_test $? 0 "IPv6 fibmatch"



	ip netns exec testns ip route get fibmatch 198.51.100.2 | \

	ip -netns testns route get fibmatch 198.51.100.2 | \

		grep -q "linkdown"

	check_fail $?

	ip netns exec testns ip -6 route get fibmatch 2001:db8:1::2 | \

	log_test $? 1 "IPv4 no linkdown flag"

	ip -netns testns -6 route get fibmatch 2001:db8:1::2 | \

		grep -q "linkdown"

	check_fail $?

	log_test $? 1 "IPv6 no linkdown flag"



	ip netns exec testns ip link set dev dummy0 carrier off

	set -e

	ip -netns testns link set dev dummy0 carrier off

	set +e



	ip netns exec testns ip route get fibmatch 198.51.100.2 &> /dev/null

	check_err $?

	ip netns exec testns ip -6 route get fibmatch 2001:db8:1::2 &> /dev/null

	check_err $?

	echo "    Carrier down"

	ip -netns testns route get fibmatch 198.51.100.2 &> /dev/null

	log_test $? 0 "IPv4 fibmatch"

	ip -netns testns -6 route get fibmatch 2001:db8:1::2 &> /dev/null

	log_test $? 0 "IPv6 fibmatch"



	ip netns exec testns ip route get fibmatch 198.51.100.2 | \

	ip -netns testns route get fibmatch 198.51.100.2 | \

		grep -q "linkdown"

	check_err $?

	ip netns exec testns ip -6 route get fibmatch 2001:db8:1::2 | \

	log_test $? 0 "IPv4 linkdown flag set"

	ip -netns testns -6 route get fibmatch 2001:db8:1::2 | \

		grep -q "linkdown"

	check_err $?

	log_test $? 0 "IPv6 linkdown flag set"



	ip netns exec testns ip address add 192.0.2.1/24 dev dummy0

	ip netns exec testns ip -6 address add 2001:db8:2::1/64 dev dummy0

	set -e

	ip -netns testns address add 192.0.2.1/24 dev dummy0

	ip -netns testns -6 address add 2001:db8:2::1/64 dev dummy0

	set +e



	ip netns exec testns ip route get fibmatch 192.0.2.2 &> /dev/null

	check_err $?

	ip netns exec testns ip -6 route get fibmatch 2001:db8:2::2 &> /dev/null

	check_err $?

	echo "    Second address added with carrier down"

	ip -netns testns route get fibmatch 192.0.2.2 &> /dev/null

	log_test $? 0 "IPv4 fibmatch"

	ip -netns testns -6 route get fibmatch 2001:db8:2::2 &> /dev/null

	log_test $? 0 "IPv6 fibmatch"



	ip netns exec testns ip route get fibmatch 192.0.2.2 | \

	ip -netns testns route get fibmatch 192.0.2.2 | \

		grep -q "linkdown"

	check_err $?

	ip netns exec testns ip -6 route get fibmatch 2001:db8:2::2 | \

	log_test $? 0 "IPv4 linkdown flag set"

	ip -netns testns -6 route get fibmatch 2001:db8:2::2 | \

		grep -q "linkdown"

	check_err $?

	log_test $? 0 "IPv6 linkdown flag set"



	ip netns exec testns ip link del dev dummy0



	ip netns del testns



	if [ $ret -ne 0 ]; then

		echo "FAIL: unicast route carrier test"

		return 1

	fi

	echo "PASS: unicast route carrier test"

	cleanup

}



fib_carrier_test()

{

	echo "Running netdev carrier change tests"



	fib_carrier_local_test

	fib_carrier_unicast_test

}
@@ -424,6 +412,9 @@ if [ $? -ne 0 ]; then 
	exit 0

fi



# start clean

cleanup &> /dev/null



fib_test



exit $ret