Commit 654d3a78 authored by David Ahern's avatar David Ahern Committed by David S. Miller

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: default avatarDavid Ahern <dsahern@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent a511858c
......@@ -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
}
......
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