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