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Message-Id: <20180313152941.31218-7-dsahern@gmail.com>
Date: Tue, 13 Mar 2018 08:29:41 -0700
From: David Ahern <dsahern@...il.com>
To: netdev@...r.kernel.org
Cc: idosch@...sch.org, David Ahern <dsahern@...il.com>
Subject: [PATCH v4 net-next 6/6] 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 <dsahern@...il.com>
---
tools/testing/selftests/net/fib_tests.sh | 180 ++++++++++++++++++++++++++++++-
1 file changed, 178 insertions(+), 2 deletions(-)
diff --git a/tools/testing/selftests/net/fib_tests.sh b/tools/testing/selftests/net/fib_tests.sh
index cfdeb35bfed5..9164e60d4b66 100755
--- a/tools/testing/selftests/net/fib_tests.sh
+++ b/tools/testing/selftests/net/fib_tests.sh
@@ -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
}
--
2.11.0
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