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selftests: fib_tests: Add IPv6 nexthop spec tests
Add series of tests for valid and invalid nexthop specs for IPv6. $ TEST=fib_nexthop_test ./fib_tests.sh ... IPv6 nexthop tests TEST: Directly connected nexthop, unicast address [ OK ] TEST: Directly connected nexthop, unicast address with device [ OK ] TEST: Gateway is linklocal address [ OK ] TEST: Gateway is linklocal address, no device [ OK ] TEST: Gateway can not be local unicast address [ OK ] TEST: Gateway can not be local unicast address, with device [ OK ] TEST: Gateway can not be a local linklocal address [ OK ] TEST: Gateway can be local address in a VRF [ OK ] TEST: Gateway can be local address in a VRF, with device [ OK ] TEST: Gateway can be local linklocal address in a VRF [ OK ] TEST: Redirect to VRF lookup [ OK ] TEST: VRF route, gateway can be local address in default VRF [ OK ] TEST: VRF route, gateway can not be a local address [ OK ] TEST: VRF route, gateway can not be a local addr with device [ OK ] Signed-off-by: David Ahern <[email protected]> Signed-off-by: David S. Miller <[email protected]>
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‎tools/testing/selftests/net/fib_tests.sh

Lines changed: 178 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -6,6 +6,7 @@
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ret=0
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VERBOSE=${VERBOSE:=0}
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PAUSE_ON_FAIL=${PAUSE_ON_FAIL:=no}
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IP="ip -netns testns"
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@@ -16,10 +17,10 @@ log_test()
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local msg="$3"
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if [ ${rc} -eq ${expected} ]; then
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printf " %-60s [ OK ]\n" "${msg}"
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printf " TEST: %-60s [ OK ]\n" "${msg}"
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else
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ret=1
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printf " %-60s [FAIL]\n" "${msg}"
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printf " TEST: %-60s [FAIL]\n" "${msg}"
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if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
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echo
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echo "hit enter to continue, 'q' to quit"
@@ -49,6 +50,28 @@ cleanup()
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ip netns del testns
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}
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get_linklocal()
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{
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local dev=$1
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local addr
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addr=$($IP -6 -br addr show dev ${dev} | \
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awk '{
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for (i = 3; i <= NF; ++i) {
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if ($i ~ /^fe80/)
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print $i
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}
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}'
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)
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addr=${addr/\/*}
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[ -z "$addr" ] && return 1
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echo $addr
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return 0
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}
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fib_unreg_unicast_test()
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{
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echo
@@ -390,6 +413,158 @@ fib_carrier_test()
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fib_carrier_unicast_test
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}
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################################################################################
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# Tests on nexthop spec
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# run 'ip route add' with given spec
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add_rt()
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{
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local desc="$1"
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local erc=$2
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local vrf=$3
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local pfx=$4
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local gw=$5
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local dev=$6
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local cmd out rc
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[ "$vrf" = "-" ] && vrf="default"
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[ -n "$gw" ] && gw="via $gw"
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[ -n "$dev" ] && dev="dev $dev"
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cmd="$IP route add vrf $vrf $pfx $gw $dev"
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if [ "$VERBOSE" = "1" ]; then
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printf "\n COMMAND: $cmd\n"
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fi
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out=$(eval $cmd 2>&1)
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rc=$?
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if [ "$VERBOSE" = "1" -a -n "$out" ]; then
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echo " $out"
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fi
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log_test $rc $erc "$desc"
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}
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fib4_nexthop()
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{
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echo
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echo "IPv4 nexthop tests"
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echo "<<< write me >>>"
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}
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fib6_nexthop()
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{
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local lldummy=$(get_linklocal dummy0)
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local llv1=$(get_linklocal dummy0)
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if [ -z "$lldummy" ]; then
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echo "Failed to get linklocal address for dummy0"
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return 1
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fi
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if [ -z "$llv1" ]; then
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echo "Failed to get linklocal address for veth1"
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return 1
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fi
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echo
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echo "IPv6 nexthop tests"
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add_rt "Directly connected nexthop, unicast address" 0 \
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- 2001:db8:101::/64 2001:db8:1::2
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add_rt "Directly connected nexthop, unicast address with device" 0 \
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- 2001:db8:102::/64 2001:db8:1::2 "dummy0"
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add_rt "Gateway is linklocal address" 0 \
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- 2001:db8:103::1/64 $llv1 "veth0"
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# fails because LL address requires a device
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add_rt "Gateway is linklocal address, no device" 2 \
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- 2001:db8:104::1/64 $llv1
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# local address can not be a gateway
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add_rt "Gateway can not be local unicast address" 2 \
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- 2001:db8:105::/64 2001:db8:1::1
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add_rt "Gateway can not be local unicast address, with device" 2 \
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- 2001:db8:106::/64 2001:db8:1::1 "dummy0"
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add_rt "Gateway can not be a local linklocal address" 2 \
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- 2001:db8:107::1/64 $lldummy "dummy0"
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# VRF tests
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add_rt "Gateway can be local address in a VRF" 0 \
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- 2001:db8:108::/64 2001:db8:51::2
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add_rt "Gateway can be local address in a VRF, with device" 0 \
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- 2001:db8:109::/64 2001:db8:51::2 "veth0"
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add_rt "Gateway can be local linklocal address in a VRF" 0 \
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- 2001:db8:110::1/64 $llv1 "veth0"
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add_rt "Redirect to VRF lookup" 0 \
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- 2001:db8:111::/64 "" "red"
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add_rt "VRF route, gateway can be local address in default VRF" 0 \
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red 2001:db8:112::/64 2001:db8:51::1
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# local address in same VRF fails
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add_rt "VRF route, gateway can not be a local address" 2 \
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red 2001:db8:113::1/64 2001:db8:2::1
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add_rt "VRF route, gateway can not be a local addr with device" 2 \
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red 2001:db8:114::1/64 2001:db8:2::1 "dummy1"
510+
}
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# Default VRF:
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# dummy0 - 198.51.100.1/24 2001:db8:1::1/64
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# veth0 - 192.0.2.1/24 2001:db8:51::1/64
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#
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# VRF red:
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# dummy1 - 192.168.2.1/24 2001:db8:2::1/64
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# veth1 - 192.0.2.2/24 2001:db8:51::2/64
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#
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# [ dummy0 veth0 ]--[ veth1 dummy1 ]
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522+
fib_nexthop_test()
523+
{
524+
setup
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set -e
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$IP -4 rule add pref 32765 table local
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$IP -4 rule del pref 0
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$IP -6 rule add pref 32765 table local
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$IP -6 rule del pref 0
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$IP link add red type vrf table 1
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$IP link set red up
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$IP -4 route add vrf red unreachable default metric 4278198272
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$IP -6 route add vrf red unreachable default metric 4278198272
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$IP link add veth0 type veth peer name veth1
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$IP link set dev veth0 up
540+
$IP address add 192.0.2.1/24 dev veth0
541+
$IP -6 address add 2001:db8:51::1/64 dev veth0
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543+
$IP link set dev veth1 vrf red up
544+
$IP address add 192.0.2.2/24 dev veth1
545+
$IP -6 address add 2001:db8:51::2/64 dev veth1
546+
547+
$IP link add dummy1 type dummy
548+
$IP link set dev dummy1 vrf red up
549+
$IP address add 192.168.2.1/24 dev dummy1
550+
$IP -6 address add 2001:db8:2::1/64 dev dummy1
551+
set +e
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553+
sleep 1
554+
fib4_nexthop
555+
fib6_nexthop
556+
557+
(
558+
$IP link del dev dummy1
559+
$IP link del veth0
560+
$IP link del red
561+
) 2>/dev/null
562+
cleanup
563+
}
564+
565+
################################################################################
566+
#
567+
393568
fib_test()
394569
{
395570
if [ -n "$TEST" ]; then
@@ -398,6 +573,7 @@ fib_test()
398573
fib_unreg_test
399574
fib_down_test
400575
fib_carrier_test
576+
fib_nexthop_test
401577
fi
402578
}
403579

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