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Commit d69faad7 authored by David Ahern's avatar David Ahern Committed by David S. Miller
Browse files

selftests: fib_tests: Add prefix route tests with metric 



Add tests verifying prefix routes are inserted with expected metric.

IPv6 prefix route tests
    TEST: Default metric                                      [ OK ]
    TEST: User specified metric on first device               [ OK ]
    TEST: User specified metric on second device              [ OK ]
    TEST: Delete of address on first device                   [ OK ]
    TEST: Modify metric of address                            [ OK ]
    TEST: Prefix route removed on link down                   [ OK ]
    TEST: Prefix route with metric on link up                 [ OK ]

IPv4 prefix route tests
    TEST: Default metric                                      [ OK ]
    TEST: User specified metric on first device               [ OK ]
    TEST: User specified metric on second device              [ OK ]
    TEST: Delete of address on first device                   [ OK ]
    TEST: Modify metric of address                            [ OK ]
    TEST: Prefix route removed on link down                   [ OK ]
    TEST: Prefix route with metric on link up                 [ OK ]

Signed-off-by: default avatarDavid Ahern <dsahern@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 8308f3ff

tools/testing/selftests/net/fib_tests.sh

100755 → 100644
+180 −1
Original line number Diff line number Diff line
@@ -6,7 +6,8 @@ 


ret=0



TESTS="unregister down carrier nexthop ipv6_rt ipv4_rt"

# all tests in this script. Can be overridden with -t option

TESTS="unregister down carrier nexthop ipv6_rt ipv4_rt ipv6_addr_metric ipv4_addr_metric"

VERBOSE=0

PAUSE_ON_FAIL=no

PAUSE=no
@@ -642,6 +643,8 @@ check_route6() 
	local rc=0



	out=$($IP -6 ro ls match ${pfx} | sed -e 's/ pref medium//')

	[ "${out}" = "${expected}" ] && return 0



	if [ -z "${out}" ]; then

		if [ "$VERBOSE" = "1" ]; then

			printf "\nNo route entry found\n"
@@ -911,6 +914,98 @@ ipv6_route_test() 
	route_cleanup

}



ip_addr_metric_check()

{

	ip addr help 2>&1 | grep -q metric

	if [ $? -ne 0 ]; then

		echo "iproute2 command does not support metric for addresses. Skipping test"

		return 1

	fi



	return 0

}



ipv6_addr_metric_test()

{

	local rc



	echo

	echo "IPv6 prefix route tests"



	ip_addr_metric_check || return 1



	setup



	set -e

	$IP li add dummy1 type dummy

	$IP li add dummy2 type dummy

	$IP li set dummy1 up

	$IP li set dummy2 up



	# default entry is metric 256

	run_cmd "$IP -6 addr add dev dummy1 2001:db8:104::1/64"

	run_cmd "$IP -6 addr add dev dummy2 2001:db8:104::2/64"

	set +e



	check_route6 "2001:db8:104::/64 dev dummy1 proto kernel metric 256 2001:db8:104::/64 dev dummy2 proto kernel metric 256"

	log_test $? 0 "Default metric"



	set -e

	run_cmd "$IP -6 addr flush dev dummy1"

	run_cmd "$IP -6 addr add dev dummy1 2001:db8:104::1/64 metric 257"

	set +e



	check_route6 "2001:db8:104::/64 dev dummy2 proto kernel metric 256 2001:db8:104::/64 dev dummy1 proto kernel metric 257"

	log_test $? 0 "User specified metric on first device"



	set -e

	run_cmd "$IP -6 addr flush dev dummy2"

	run_cmd "$IP -6 addr add dev dummy2 2001:db8:104::2/64 metric 258"

	set +e



	check_route6 "2001:db8:104::/64 dev dummy1 proto kernel metric 257 2001:db8:104::/64 dev dummy2 proto kernel metric 258"

	log_test $? 0 "User specified metric on second device"



	run_cmd "$IP -6 addr del dev dummy1 2001:db8:104::1/64 metric 257"

	rc=$?

	if [ $rc -eq 0 ]; then

		check_route6 "2001:db8:104::/64 dev dummy2 proto kernel metric 258"

		rc=$?

	fi

	log_test $rc 0 "Delete of address on first device"



	run_cmd "$IP -6 addr change dev dummy2 2001:db8:104::2/64 metric 259"

	rc=$?

	if [ $rc -eq 0 ]; then

		check_route6 "2001:db8:104::/64 dev dummy2 proto kernel metric 259"

		rc=$?

	fi

	log_test $rc 0 "Modify metric of address"



	# verify prefix route removed on down

	run_cmd "ip netns exec testns sysctl -qw net.ipv6.conf.all.keep_addr_on_down=1"

	run_cmd "$IP li set dev dummy2 down"

	rc=$?

	if [ $rc -eq 0 ]; then

		check_route6 ""

		rc=$?

	fi

	log_test $rc 0 "Prefix route removed on link down"



	# verify prefix route re-inserted with assigned metric

	run_cmd "$IP li set dev dummy2 up"

	rc=$?

	if [ $rc -eq 0 ]; then

		check_route6 "2001:db8:104::/64 dev dummy2 proto kernel metric 259"

		rc=$?

	fi

	log_test $rc 0 "Prefix route with metric on link up"



	$IP li del dummy1

	$IP li del dummy2

	cleanup

}



# add route for a prefix, flushing any existing routes first

# expected to be the first step of a test

add_route()
@@ -955,6 +1050,8 @@ check_route() 
	local rc=0



	out=$($IP ro ls match ${pfx})

	[ "${out}" = "${expected}" ] && return 0



	if [ -z "${out}" ]; then

		if [ "$VERBOSE" = "1" ]; then

			printf "\nNo route entry found\n"
@@ -1181,6 +1278,86 @@ ipv4_route_test() 
	route_cleanup

}



ipv4_addr_metric_test()

{

	local rc



	echo

	echo "IPv4 prefix route tests"



	ip_addr_metric_check || return 1



	setup



	set -e

	$IP li add dummy1 type dummy

	$IP li add dummy2 type dummy

	$IP li set dummy1 up

	$IP li set dummy2 up



	# default entry is metric 256

	run_cmd "$IP addr add dev dummy1 172.16.104.1/24"

	run_cmd "$IP addr add dev dummy2 172.16.104.2/24"

	set +e



	check_route "172.16.104.0/24 dev dummy1 proto kernel scope link src 172.16.104.1 172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.2"

	log_test $? 0 "Default metric"



	set -e

	run_cmd "$IP addr flush dev dummy1"

	run_cmd "$IP addr add dev dummy1 172.16.104.1/24 metric 257"

	set +e



	check_route "172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.2 172.16.104.0/24 dev dummy1 proto kernel scope link src 172.16.104.1 metric 257"

	log_test $? 0 "User specified metric on first device"



	set -e

	run_cmd "$IP addr flush dev dummy2"

	run_cmd "$IP addr add dev dummy2 172.16.104.2/24 metric 258"

	set +e



	check_route "172.16.104.0/24 dev dummy1 proto kernel scope link src 172.16.104.1 metric 257 172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.2 metric 258"

	log_test $? 0 "User specified metric on second device"



	run_cmd "$IP addr del dev dummy1 172.16.104.1/24 metric 257"

	rc=$?

	if [ $rc -eq 0 ]; then

		check_route "172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.2 metric 258"

		rc=$?

	fi

	log_test $rc 0 "Delete of address on first device"



	run_cmd "$IP addr change dev dummy2 172.16.104.2/24 metric 259"

	rc=$?

	if [ $rc -eq 0 ]; then

		check_route "172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.2 metric 259"

		rc=$?

	fi

	log_test $rc 0 "Modify metric of address"



	# verify prefix route removed on down

	run_cmd "$IP li set dev dummy2 down"

	rc=$?

	if [ $rc -eq 0 ]; then

		check_route ""

		rc=$?

	fi

	log_test $rc 0 "Prefix route removed on link down"



	# verify prefix route re-inserted with assigned metric

	run_cmd "$IP li set dev dummy2 up"

	rc=$?

	if [ $rc -eq 0 ]; then

		check_route "172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.2 metric 259"

		rc=$?

	fi

	log_test $rc 0 "Prefix route with metric on link up"



	$IP li del dummy1

	$IP li del dummy2

	cleanup

}



################################################################################

# usage
@@ -1245,6 +1422,8 @@ do 
	fib_nexthop_test|nexthop)	fib_nexthop_test;;

	ipv6_route_test|ipv6_rt)	ipv6_route_test;;

	ipv4_route_test|ipv4_rt)	ipv4_route_test;;

	ipv6_addr_metric)		ipv6_addr_metric_test;;

	ipv4_addr_metric)		ipv4_addr_metric_test;;



	help) echo "Test names: $TESTS"; exit 0;;

	esac