selftests: fib_tests: Add IPv6 nexthop spec tests (654d3a78) · Commits · e / devices / android_kernel_fairphone_FP5

tools/testing/selftests/net/fib_tests.sh

+178 −2

Original line number	Diff line number	Diff line
		@@ -6,6 +6,7 @@

		ret=0

		VERBOSE=${VERBOSE:=0}
		PAUSE_ON_FAIL=${PAUSE_ON_FAIL:=no}
		IP="ip -netns testns"

		@@ -16,10 +17,10 @@ log_test()
		local msg="$3"

		if [ ${rc} -eq ${expected} ]; then
		printf " %-60s [ OK ]\n" "${msg}"
		printf " TEST: %-60s [ OK ]\n" "${msg}"
		else
		ret=1
		printf " %-60s [FAIL]\n" "${msg}"
		printf " TEST: %-60s [FAIL]\n" "${msg}"
		if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
		echo
		echo "hit enter to continue, 'q' to quit"
		@@ -49,6 +50,28 @@ cleanup()
		ip netns del testns
		}

		get_linklocal()
		{
		local dev=$1
		local addr

		addr=$($IP -6 -br addr show dev ${dev} \| \
		awk '{
		for (i = 3; i <= NF; ++i) {
		if ($i ~ /^fe80/)
		print $i
		}
		}'
		)
		addr=${addr/\/*}

		[ -z "$addr" ] && return 1

		echo $addr

		return 0
		}

		fib_unreg_unicast_test()
		{
		echo
		@@ -390,6 +413,158 @@ fib_carrier_test()
		fib_carrier_unicast_test
		}

		################################################################################
		# Tests on nexthop spec

		# run 'ip route add' with given spec
		add_rt()
		{
		local desc="$1"
		local erc=$2
		local vrf=$3
		local pfx=$4
		local gw=$5
		local dev=$6
		local cmd out rc

		[ "$vrf" = "-" ] && vrf="default"
		[ -n "$gw" ] && gw="via $gw"
		[ -n "$dev" ] && dev="dev $dev"

		cmd="$IP route add vrf $vrf $pfx $gw $dev"
		if [ "$VERBOSE" = "1" ]; then
		printf "\n COMMAND: $cmd\n"
		fi

		out=$(eval $cmd 2>&1)
		rc=$?
		if [ "$VERBOSE" = "1" -a -n "$out" ]; then
		echo " $out"
		fi
		log_test $rc $erc "$desc"
		}

		fib4_nexthop()
		{
		echo
		echo "IPv4 nexthop tests"

		echo "<<< write me >>>"
		}

		fib6_nexthop()
		{
		local lldummy=$(get_linklocal dummy0)
		local llv1=$(get_linklocal dummy0)

		if [ -z "$lldummy" ]; then
		echo "Failed to get linklocal address for dummy0"
		return 1
		fi
		if [ -z "$llv1" ]; then
		echo "Failed to get linklocal address for veth1"
		return 1
		fi

		echo
		echo "IPv6 nexthop tests"

		add_rt "Directly connected nexthop, unicast address" 0 \
		- 2001:db8:101::/64 2001:db8:1::2
		add_rt "Directly connected nexthop, unicast address with device" 0 \
		- 2001:db8:102::/64 2001:db8:1::2 "dummy0"
		add_rt "Gateway is linklocal address" 0 \
		- 2001:db8:103::1/64 $llv1 "veth0"

		# fails because LL address requires a device
		add_rt "Gateway is linklocal address, no device" 2 \
		- 2001:db8:104::1/64 $llv1

		# local address can not be a gateway
		add_rt "Gateway can not be local unicast address" 2 \
		- 2001:db8:105::/64 2001:db8:1::1
		add_rt "Gateway can not be local unicast address, with device" 2 \
		- 2001:db8:106::/64 2001:db8:1::1 "dummy0"
		add_rt "Gateway can not be a local linklocal address" 2 \
		- 2001:db8:107::1/64 $lldummy "dummy0"

		# VRF tests
		add_rt "Gateway can be local address in a VRF" 0 \
		- 2001:db8:108::/64 2001:db8:51::2
		add_rt "Gateway can be local address in a VRF, with device" 0 \
		- 2001:db8:109::/64 2001:db8:51::2 "veth0"
		add_rt "Gateway can be local linklocal address in a VRF" 0 \
		- 2001:db8:110::1/64 $llv1 "veth0"

		add_rt "Redirect to VRF lookup" 0 \
		- 2001:db8:111::/64 "" "red"

		add_rt "VRF route, gateway can be local address in default VRF" 0 \
		red 2001:db8:112::/64 2001:db8:51::1

		# local address in same VRF fails
		add_rt "VRF route, gateway can not be a local address" 2 \
		red 2001:db8:113::1/64 2001:db8:2::1
		add_rt "VRF route, gateway can not be a local addr with device" 2 \
		red 2001:db8:114::1/64 2001:db8:2::1 "dummy1"
		}

		# Default VRF:
		# dummy0 - 198.51.100.1/24 2001:db8:1::1/64
		# veth0 - 192.0.2.1/24 2001:db8:51::1/64
		#
		# VRF red:
		# dummy1 - 192.168.2.1/24 2001:db8:2::1/64
		# veth1 - 192.0.2.2/24 2001:db8:51::2/64
		#
		# [ dummy0 veth0 ]--[ veth1 dummy1 ]

		fib_nexthop_test()
		{
		setup

		set -e

		$IP -4 rule add pref 32765 table local
		$IP -4 rule del pref 0
		$IP -6 rule add pref 32765 table local
		$IP -6 rule del pref 0

		$IP link add red type vrf table 1
		$IP link set red up
		$IP -4 route add vrf red unreachable default metric 4278198272
		$IP -6 route add vrf red unreachable default metric 4278198272

		$IP link add veth0 type veth peer name veth1
		$IP link set dev veth0 up
		$IP address add 192.0.2.1/24 dev veth0
		$IP -6 address add 2001:db8:51::1/64 dev veth0

		$IP link set dev veth1 vrf red up
		$IP address add 192.0.2.2/24 dev veth1
		$IP -6 address add 2001:db8:51::2/64 dev veth1

		$IP link add dummy1 type dummy
		$IP link set dev dummy1 vrf red up
		$IP address add 192.168.2.1/24 dev dummy1
		$IP -6 address add 2001:db8:2::1/64 dev dummy1
		set +e

		sleep 1
		fib4_nexthop
		fib6_nexthop

		(
		$IP link del dev dummy1
		$IP link del veth0
		$IP link del red
		) 2>/dev/null
		cleanup
		}

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

		fib_test()
		{
		if [ -n "$TEST" ]; then
		@@ -398,6 +573,7 @@ fib_test()
		fib_unreg_test
		fib_down_test
		fib_carrier_test
		fib_nexthop_test
		fi
		}