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linux_dsm_epyc7002/tools/testing/selftests/net/fib_tests.sh
David Ahern abb1860aac selftests: fib_tests: Add ipv4 route add append replace tests 
Add IPv4 route tests covering add, append and replace permutations.
Assumes the ability to add a basic single path route works; this is
required for example when adding an address to an interface.

$ fib_tests.sh -t ipv4_rt

IPv4 route add / append tests
    TEST: Attempt to add duplicate route - gw                           [ OK ]
    TEST: Attempt to add duplicate route - dev only                     [ OK ]
    TEST: Attempt to add duplicate route - reject route                 [ OK ]
    TEST: Add new nexthop for existing prefix                           [ OK ]
    TEST: Append nexthop to existing route - gw                         [ OK ]
    TEST: Append nexthop to existing route - dev only                   [ OK ]
    TEST: Append nexthop to existing route - reject route               [ OK ]
    TEST: Append nexthop to existing reject route - gw                  [ OK ]
    TEST: Append nexthop to existing reject route - dev only            [ OK ]
    TEST: add multipath route                                           [ OK ]
    TEST: Attempt to add duplicate multipath route                      [ OK ]
    TEST: Route add with different metrics                              [ OK ]
    TEST: Route delete with metric                                      [ OK ]

IPv4 route replace tests
    TEST: Single path with single path                                  [ OK ]
    TEST: Single path with multipath                                    [ OK ]
    TEST: Single path with reject route                                 [ OK ]
    TEST: Single path with single path via multipath attribute          [ OK ]
    TEST: Invalid nexthop                                               [ OK ]
    TEST: Single path - replace of non-existent route                   [ OK ]
    TEST: Multipath with multipath                                      [ OK ]
    TEST: Multipath with single path                                    [ OK ]
    TEST: Multipath with single path via multipath attribute            [ OK ]
    TEST: Multipath with reject route                                   [ OK ]
    TEST: Multipath - invalid first nexthop                             [ OK ]
    TEST: Multipath - invalid second nexthop                            [ OK ]
    TEST: Multipath - replace of non-existent route                     [ OK ]

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-22 14:44:19 -04:00

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#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
# This test is for checking IPv4 and IPv6 FIB behavior in response to
# different events.
ret=0
TESTS="unregister down carrier nexthop ipv6_rt ipv4_rt"
VERBOSE=0
PAUSE_ON_FAIL=no
PAUSE=no
IP="ip -netns testns"
log_test()
{
local rc=$1
local expected=$2
local msg="$3"
if [ ${rc} -eq ${expected} ]; then
printf " TEST: %-60s [ OK ]\n" "${msg}"
nsuccess=$((nsuccess+1))
else
ret=1
nfail=$((nfail+1))
printf " TEST: %-60s [FAIL]\n" "${msg}"
if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
echo
echo "hit enter to continue, 'q' to quit"
read a
[ "$a" = "q" ] && exit 1
fi
fi
if [ "${PAUSE}" = "yes" ]; then
echo
echo "hit enter to continue, 'q' to quit"
read a
[ "$a" = "q" ] && exit 1
fi
}
setup()
{
set -e
ip netns add testns
$IP link set dev lo up
$IP link add dummy0 type dummy
$IP link set dev dummy0 up
$IP address add 198.51.100.1/24 dev dummy0
$IP -6 address add 2001:db8:1::1/64 dev dummy0
set +e
}
cleanup()
{
$IP link del dev dummy0 &> /dev/null
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
echo "Single path route test"
setup
echo " Start point"
$IP route get fibmatch 198.51.100.2 &> /dev/null
log_test $? 0 "IPv4 fibmatch"
$IP -6 route get fibmatch 2001:db8:1::2 &> /dev/null
log_test $? 0 "IPv6 fibmatch"
set -e
$IP link del dev dummy0
set +e
echo " Nexthop device deleted"
$IP route get fibmatch 198.51.100.2 &> /dev/null
log_test $? 2 "IPv4 fibmatch - no route"
$IP -6 route get fibmatch 2001:db8:1::2 &> /dev/null
log_test $? 2 "IPv6 fibmatch - no route"
cleanup
}
fib_unreg_multipath_test()
{
echo
echo "Multipath route test"
setup
set -e
$IP link add dummy1 type dummy
$IP link set dev dummy1 up
$IP address add 192.0.2.1/24 dev dummy1
$IP -6 address add 2001:db8:2::1/64 dev dummy1
$IP route add 203.0.113.0/24 \
nexthop via 198.51.100.2 dev dummy0 \
nexthop via 192.0.2.2 dev dummy1
$IP -6 route add 2001:db8:3::/64 \
nexthop via 2001:db8:1::2 dev dummy0 \
nexthop via 2001:db8:2::2 dev dummy1
set +e
echo " Start point"
$IP route get fibmatch 203.0.113.1 &> /dev/null
log_test $? 0 "IPv4 fibmatch"
$IP -6 route get fibmatch 2001:db8:3::1 &> /dev/null
log_test $? 0 "IPv6 fibmatch"
set -e
$IP link del dev dummy0
set +e
echo " One nexthop device deleted"
$IP route get fibmatch 203.0.113.1 &> /dev/null
log_test $? 2 "IPv4 - multipath route removed on delete"
$IP -6 route get fibmatch 2001:db8:3::1 &> /dev/null
# In IPv6 we do not flush the entire multipath route.
log_test $? 0 "IPv6 - multipath down to single path"
set -e
$IP link del dev dummy1
set +e
echo " Second nexthop device deleted"
$IP -6 route get fibmatch 2001:db8:3::1 &> /dev/null
log_test $? 2 "IPv6 - no route"
cleanup
}
fib_unreg_test()
{
fib_unreg_unicast_test
fib_unreg_multipath_test
}
fib_down_unicast_test()
{
echo
echo "Single path, admin down"
setup
echo " Start point"
$IP route get fibmatch 198.51.100.2 &> /dev/null
log_test $? 0 "IPv4 fibmatch"
$IP -6 route get fibmatch 2001:db8:1::2 &> /dev/null
log_test $? 0 "IPv6 fibmatch"
set -e
$IP link set dev dummy0 down
set +e
echo " Route deleted on down"
$IP route get fibmatch 198.51.100.2 &> /dev/null
log_test $? 2 "IPv4 fibmatch"
$IP -6 route get fibmatch 2001:db8:1::2 &> /dev/null
log_test $? 2 "IPv6 fibmatch"
cleanup
}
fib_down_multipath_test_do()
{
local down_dev=$1
local up_dev=$2
$IP route get fibmatch 203.0.113.1 \
oif $down_dev &> /dev/null
log_test $? 2 "IPv4 fibmatch on down device"
$IP -6 route get fibmatch 2001:db8:3::1 \
oif $down_dev &> /dev/null
log_test $? 2 "IPv6 fibmatch on down device"
$IP route get fibmatch 203.0.113.1 \
oif $up_dev &> /dev/null
log_test $? 0 "IPv4 fibmatch on up device"
$IP -6 route get fibmatch 2001:db8:3::1 \
oif $up_dev &> /dev/null
log_test $? 0 "IPv6 fibmatch on up device"
$IP route get fibmatch 203.0.113.1 | \
grep $down_dev | grep -q "dead linkdown"
log_test $? 0 "IPv4 flags on down device"
$IP -6 route get fibmatch 2001:db8:3::1 | \
grep $down_dev | grep -q "dead linkdown"
log_test $? 0 "IPv6 flags on down device"
$IP route get fibmatch 203.0.113.1 | \
grep $up_dev | grep -q "dead linkdown"
log_test $? 1 "IPv4 flags on up device"
$IP -6 route get fibmatch 2001:db8:3::1 | \
grep $up_dev | grep -q "dead linkdown"
log_test $? 1 "IPv6 flags on up device"
}
fib_down_multipath_test()
{
echo
echo "Admin down multipath"
setup
set -e
$IP link add dummy1 type dummy
$IP link set dev dummy1 up
$IP address add 192.0.2.1/24 dev dummy1
$IP -6 address add 2001:db8:2::1/64 dev dummy1
$IP route add 203.0.113.0/24 \
nexthop via 198.51.100.2 dev dummy0 \
nexthop via 192.0.2.2 dev dummy1
$IP -6 route add 2001:db8:3::/64 \
nexthop via 2001:db8:1::2 dev dummy0 \
nexthop via 2001:db8:2::2 dev dummy1
set +e
echo " Verify start point"
$IP route get fibmatch 203.0.113.1 &> /dev/null
log_test $? 0 "IPv4 fibmatch"
$IP -6 route get fibmatch 2001:db8:3::1 &> /dev/null
log_test $? 0 "IPv6 fibmatch"
set -e
$IP link set dev dummy0 down
set +e
echo " One device down, one up"
fib_down_multipath_test_do "dummy0" "dummy1"
set -e
$IP link set dev dummy0 up
$IP link set dev dummy1 down
set +e
echo " Other device down and up"
fib_down_multipath_test_do "dummy1" "dummy0"
set -e
$IP link set dev dummy0 down
set +e
echo " Both devices down"
$IP route get fibmatch 203.0.113.1 &> /dev/null
log_test $? 2 "IPv4 fibmatch"
$IP -6 route get fibmatch 2001:db8:3::1 &> /dev/null
log_test $? 2 "IPv6 fibmatch"
$IP link del dev dummy1
cleanup
}
fib_down_test()
{
fib_down_unicast_test
fib_down_multipath_test
}
# Local routes should not be affected when carrier changes.
fib_carrier_local_test()
{
echo
echo "Local carrier tests - single path"
setup
set -e
$IP link set dev dummy0 carrier on
set +e
echo " Start point"
$IP route get fibmatch 198.51.100.1 &> /dev/null
log_test $? 0 "IPv4 fibmatch"
$IP -6 route get fibmatch 2001:db8:1::1 &> /dev/null
log_test $? 0 "IPv6 fibmatch"
$IP route get fibmatch 198.51.100.1 | \
grep -q "linkdown"
log_test $? 1 "IPv4 - no linkdown flag"
$IP -6 route get fibmatch 2001:db8:1::1 | \
grep -q "linkdown"
log_test $? 1 "IPv6 - no linkdown flag"
set -e
$IP link set dev dummy0 carrier off
sleep 1
set +e
echo " Carrier off on nexthop"
$IP route get fibmatch 198.51.100.1 &> /dev/null
log_test $? 0 "IPv4 fibmatch"
$IP -6 route get fibmatch 2001:db8:1::1 &> /dev/null
log_test $? 0 "IPv6 fibmatch"
$IP route get fibmatch 198.51.100.1 | \
grep -q "linkdown"
log_test $? 1 "IPv4 - linkdown flag set"
$IP -6 route get fibmatch 2001:db8:1::1 | \
grep -q "linkdown"
log_test $? 1 "IPv6 - linkdown flag set"
set -e
$IP address add 192.0.2.1/24 dev dummy0
$IP -6 address add 2001:db8:2::1/64 dev dummy0
set +e
echo " Route to local address with carrier down"
$IP route get fibmatch 192.0.2.1 &> /dev/null
log_test $? 0 "IPv4 fibmatch"
$IP -6 route get fibmatch 2001:db8:2::1 &> /dev/null
log_test $? 0 "IPv6 fibmatch"
$IP route get fibmatch 192.0.2.1 | \
grep -q "linkdown"
log_test $? 1 "IPv4 linkdown flag set"
$IP -6 route get fibmatch 2001:db8:2::1 | \
grep -q "linkdown"
log_test $? 1 "IPv6 linkdown flag set"
cleanup
}
fib_carrier_unicast_test()
{
ret=0
echo
echo "Single path route carrier test"
setup
set -e
$IP link set dev dummy0 carrier on
set +e
echo " Start point"
$IP route get fibmatch 198.51.100.2 &> /dev/null
log_test $? 0 "IPv4 fibmatch"
$IP -6 route get fibmatch 2001:db8:1::2 &> /dev/null
log_test $? 0 "IPv6 fibmatch"
$IP route get fibmatch 198.51.100.2 | \
grep -q "linkdown"
log_test $? 1 "IPv4 no linkdown flag"
$IP -6 route get fibmatch 2001:db8:1::2 | \
grep -q "linkdown"
log_test $? 1 "IPv6 no linkdown flag"
set -e
$IP link set dev dummy0 carrier off
set +e
echo " Carrier down"
$IP route get fibmatch 198.51.100.2 &> /dev/null
log_test $? 0 "IPv4 fibmatch"
$IP -6 route get fibmatch 2001:db8:1::2 &> /dev/null
log_test $? 0 "IPv6 fibmatch"
$IP route get fibmatch 198.51.100.2 | \
grep -q "linkdown"
log_test $? 0 "IPv4 linkdown flag set"
$IP -6 route get fibmatch 2001:db8:1::2 | \
grep -q "linkdown"
log_test $? 0 "IPv6 linkdown flag set"
set -e
$IP address add 192.0.2.1/24 dev dummy0
$IP -6 address add 2001:db8:2::1/64 dev dummy0
set +e
echo " Second address added with carrier down"
$IP route get fibmatch 192.0.2.2 &> /dev/null
log_test $? 0 "IPv4 fibmatch"
$IP -6 route get fibmatch 2001:db8:2::2 &> /dev/null
log_test $? 0 "IPv6 fibmatch"
$IP route get fibmatch 192.0.2.2 | \
grep -q "linkdown"
log_test $? 0 "IPv4 linkdown flag set"
$IP -6 route get fibmatch 2001:db8:2::2 | \
grep -q "linkdown"
log_test $? 0 "IPv6 linkdown flag set"
cleanup
}
fib_carrier_test()
{
fib_carrier_local_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
}
################################################################################
# Tests on route add and replace
run_cmd()
{
local cmd="$1"
local out
local stderr="2>/dev/null"
if [ "$VERBOSE" = "1" ]; then
printf " COMMAND: $cmd\n"
stderr=
fi
out=$(eval $cmd $stderr)
rc=$?
if [ "$VERBOSE" = "1" -a -n "$out" ]; then
echo " $out"
fi
[ "$VERBOSE" = "1" ] && echo
return $rc
}
# add route for a prefix, flushing any existing routes first
# expected to be the first step of a test
add_route6()
{
local pfx="$1"
local nh="$2"
local out
if [ "$VERBOSE" = "1" ]; then
echo
echo " ##################################################"
echo
fi
run_cmd "$IP -6 ro flush ${pfx}"
[ $? -ne 0 ] && exit 1
out=$($IP -6 ro ls match ${pfx})
if [ -n "$out" ]; then
echo "Failed to flush routes for prefix used for tests."
exit 1
fi
run_cmd "$IP -6 ro add ${pfx} ${nh}"
if [ $? -ne 0 ]; then
echo "Failed to add initial route for test."
exit 1
fi
}
# add initial route - used in replace route tests
add_initial_route6()
{
add_route6 "2001:db8:104::/64" "$1"
}
check_route6()
{
local pfx="2001:db8:104::/64"
local expected="$1"
local out
local rc=0
out=$($IP -6 ro ls match ${pfx} | sed -e 's/ pref medium//')
if [ -z "${out}" ]; then
if [ "$VERBOSE" = "1" ]; then
printf "\nNo route entry found\n"
printf "Expected:\n"
printf " ${expected}\n"
fi
return 1
fi
# tricky way to convert output to 1-line without ip's
# messy '\'; this drops all extra white space
out=$(echo ${out})
if [ "${out}" != "${expected}" ]; then
rc=1
if [ "${VERBOSE}" = "1" ]; then
printf " Unexpected route entry. Have:\n"
printf " ${out}\n"
printf " Expected:\n"
printf " ${expected}\n\n"
fi
fi
return $rc
}
route_cleanup()
{
$IP li del red 2>/dev/null
$IP li del dummy1 2>/dev/null
$IP li del veth1 2>/dev/null
$IP li del veth3 2>/dev/null
cleanup &> /dev/null
}
route_setup()
{
route_cleanup
setup
[ "${VERBOSE}" = "1" ] && set -x
set -e
$IP li add red up type vrf table 101
$IP li add veth1 type veth peer name veth2
$IP li add veth3 type veth peer name veth4
$IP li set veth1 up
$IP li set veth3 up
$IP li set veth2 vrf red up
$IP li set veth4 vrf red up
$IP li add dummy1 type dummy
$IP li set dummy1 vrf red up
$IP -6 addr add 2001:db8:101::1/64 dev veth1
$IP -6 addr add 2001:db8:101::2/64 dev veth2
$IP -6 addr add 2001:db8:103::1/64 dev veth3
$IP -6 addr add 2001:db8:103::2/64 dev veth4
$IP -6 addr add 2001:db8:104::1/64 dev dummy1
$IP addr add 172.16.101.1/24 dev veth1
$IP addr add 172.16.101.2/24 dev veth2
$IP addr add 172.16.103.1/24 dev veth3
$IP addr add 172.16.103.2/24 dev veth4
$IP addr add 172.16.104.1/24 dev dummy1
set +ex
}
# assumption is that basic add of a single path route works
# otherwise just adding an address on an interface is broken
ipv6_rt_add()
{
local rc
echo
echo "IPv6 route add / append tests"
# route add same prefix - fails with EEXISTS b/c ip adds NLM_F_EXCL
add_route6 "2001:db8:104::/64" "via 2001:db8:101::2"
run_cmd "$IP -6 ro add 2001:db8:104::/64 via 2001:db8:103::2"
log_test $? 2 "Attempt to add duplicate route - gw"
# route add same prefix - fails with EEXISTS b/c ip adds NLM_F_EXCL
add_route6 "2001:db8:104::/64" "via 2001:db8:101::2"
run_cmd "$IP -6 ro add 2001:db8:104::/64 dev veth3"
log_test $? 2 "Attempt to add duplicate route - dev only"
# route add same prefix - fails with EEXISTS b/c ip adds NLM_F_EXCL
add_route6 "2001:db8:104::/64" "via 2001:db8:101::2"
run_cmd "$IP -6 ro add unreachable 2001:db8:104::/64"
log_test $? 2 "Attempt to add duplicate route - reject route"
# iproute2 prepend only sets NLM_F_CREATE
# - adds a new route; does NOT convert existing route to ECMP
add_route6 "2001:db8:104::/64" "via 2001:db8:101::2"
run_cmd "$IP -6 ro prepend 2001:db8:104::/64 via 2001:db8:103::2"
check_route6 "2001:db8:104::/64 via 2001:db8:101::2 dev veth1 metric 1024 2001:db8:104::/64 via 2001:db8:103::2 dev veth3 metric 1024"
log_test $? 0 "Add new route for existing prefix (w/o NLM_F_EXCL)"
# route append with same prefix adds a new route
# - iproute2 sets NLM_F_CREATE | NLM_F_APPEND
add_route6 "2001:db8:104::/64" "via 2001:db8:101::2"
run_cmd "$IP -6 ro append 2001:db8:104::/64 via 2001:db8:103::2"
check_route6 "2001:db8:104::/64 metric 1024 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1"
log_test $? 0 "Append nexthop to existing route - gw"
add_route6 "2001:db8:104::/64" "via 2001:db8:101::2"
run_cmd "$IP -6 ro append 2001:db8:104::/64 dev veth3"
check_route6 "2001:db8:104::/64 metric 1024 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop dev veth3 weight 1"
log_test $? 0 "Append nexthop to existing route - dev only"
# multipath route can not have a nexthop that is a reject route
add_route6 "2001:db8:104::/64" "via 2001:db8:101::2"
run_cmd "$IP -6 ro append unreachable 2001:db8:104::/64"
log_test $? 2 "Append nexthop to existing route - reject route"
# reject route can not be converted to multipath route
run_cmd "$IP -6 ro flush 2001:db8:104::/64"
run_cmd "$IP -6 ro add unreachable 2001:db8:104::/64"
run_cmd "$IP -6 ro append 2001:db8:104::/64 via 2001:db8:103::2"
log_test $? 2 "Append nexthop to existing reject route - gw"
run_cmd "$IP -6 ro flush 2001:db8:104::/64"
run_cmd "$IP -6 ro add unreachable 2001:db8:104::/64"
run_cmd "$IP -6 ro append 2001:db8:104::/64 dev veth3"
log_test $? 2 "Append nexthop to existing reject route - dev only"
# insert mpath directly
add_route6 "2001:db8:104::/64" "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
check_route6 "2001:db8:104::/64 metric 1024 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1"
log_test $? 0 "Add multipath route"
add_route6 "2001:db8:104::/64" "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
run_cmd "$IP -6 ro add 2001:db8:104::/64 nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
log_test $? 2 "Attempt to add duplicate multipath route"
# insert of a second route without append but different metric
add_route6 "2001:db8:104::/64" "via 2001:db8:101::2"
run_cmd "$IP -6 ro add 2001:db8:104::/64 via 2001:db8:103::2 metric 512"
rc=$?
if [ $rc -eq 0 ]; then
run_cmd "$IP -6 ro add 2001:db8:104::/64 via 2001:db8:103::3 metric 256"
rc=$?
fi
log_test $rc 0 "Route add with different metrics"
run_cmd "$IP -6 ro del 2001:db8:104::/64 metric 512"
rc=$?
if [ $rc -eq 0 ]; then
check_route6 "2001:db8:104::/64 via 2001:db8:103::3 dev veth3 metric 256 2001:db8:104::/64 via 2001:db8:101::2 dev veth1 metric 1024"
rc=$?
fi
log_test $rc 0 "Route delete with metric"
}
ipv6_rt_replace_single()
{
# single path with single path
#
add_initial_route6 "via 2001:db8:101::2"
run_cmd "$IP -6 ro replace 2001:db8:104::/64 via 2001:db8:103::2"
check_route6 "2001:db8:104::/64 via 2001:db8:103::2 dev veth3 metric 1024"
log_test $? 0 "Single path with single path"
# single path with multipath
#
add_initial_route6 "nexthop via 2001:db8:101::2"
run_cmd "$IP -6 ro replace 2001:db8:104::/64 nexthop via 2001:db8:101::3 nexthop via 2001:db8:103::2"
check_route6 "2001:db8:104::/64 metric 1024 nexthop via 2001:db8:101::3 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1"
log_test $? 0 "Single path with multipath"
# single path with reject
#
add_initial_route6 "nexthop via 2001:db8:101::2"
run_cmd "$IP -6 ro replace unreachable 2001:db8:104::/64"
check_route6 "unreachable 2001:db8:104::/64 dev lo metric 1024"
log_test $? 0 "Single path with reject route"
# single path with single path using MULTIPATH attribute
#
add_initial_route6 "via 2001:db8:101::2"
run_cmd "$IP -6 ro replace 2001:db8:104::/64 nexthop via 2001:db8:103::2"
check_route6 "2001:db8:104::/64 via 2001:db8:103::2 dev veth3 metric 1024"
log_test $? 0 "Single path with single path via multipath attribute"
# route replace fails - invalid nexthop
add_initial_route6 "via 2001:db8:101::2"
run_cmd "$IP -6 ro replace 2001:db8:104::/64 via 2001:db8:104::2"
if [ $? -eq 0 ]; then
# previous command is expected to fail so if it returns 0
# that means the test failed.
log_test 0 1 "Invalid nexthop"
else
check_route6 "2001:db8:104::/64 via 2001:db8:101::2 dev veth1 metric 1024"
log_test $? 0 "Invalid nexthop"
fi
# replace non-existent route
# - note use of change versus replace since ip adds NLM_F_CREATE
# for replace
add_initial_route6 "via 2001:db8:101::2"
run_cmd "$IP -6 ro change 2001:db8:105::/64 via 2001:db8:101::2"
log_test $? 2 "Single path - replace of non-existent route"
}
ipv6_rt_replace_mpath()
{
# multipath with multipath
add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
run_cmd "$IP -6 ro replace 2001:db8:104::/64 nexthop via 2001:db8:101::3 nexthop via 2001:db8:103::3"
check_route6 "2001:db8:104::/64 metric 1024 nexthop via 2001:db8:101::3 dev veth1 weight 1 nexthop via 2001:db8:103::3 dev veth3 weight 1"
log_test $? 0 "Multipath with multipath"
# multipath with single
add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
run_cmd "$IP -6 ro replace 2001:db8:104::/64 via 2001:db8:101::3"
check_route6 "2001:db8:104::/64 via 2001:db8:101::3 dev veth1 metric 1024"
log_test $? 0 "Multipath with single path"
# multipath with single
add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
run_cmd "$IP -6 ro replace 2001:db8:104::/64 nexthop via 2001:db8:101::3"
check_route6 "2001:db8:104::/64 via 2001:db8:101::3 dev veth1 metric 1024"
log_test $? 0 "Multipath with single path via multipath attribute"
# multipath with reject
add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
run_cmd "$IP -6 ro replace unreachable 2001:db8:104::/64"
check_route6 "unreachable 2001:db8:104::/64 dev lo metric 1024"
log_test $? 0 "Multipath with reject route"
# route replace fails - invalid nexthop 1
add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
run_cmd "$IP -6 ro replace 2001:db8:104::/64 nexthop via 2001:db8:111::3 nexthop via 2001:db8:103::3"
check_route6 "2001:db8:104::/64 metric 1024 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1"
log_test $? 0 "Multipath - invalid first nexthop"
# route replace fails - invalid nexthop 2
add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
run_cmd "$IP -6 ro replace 2001:db8:104::/64 nexthop via 2001:db8:101::3 nexthop via 2001:db8:113::3"
check_route6 "2001:db8:104::/64 metric 1024 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1"
log_test $? 0 "Multipath - invalid second nexthop"
# multipath non-existent route
add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
run_cmd "$IP -6 ro change 2001:db8:105::/64 nexthop via 2001:db8:101::3 nexthop via 2001:db8:103::3"
log_test $? 2 "Multipath - replace of non-existent route"
}
ipv6_rt_replace()
{
echo
echo "IPv6 route replace tests"
ipv6_rt_replace_single
ipv6_rt_replace_mpath
}
ipv6_route_test()
{
route_setup
ipv6_rt_add
ipv6_rt_replace
route_cleanup
}
# add route for a prefix, flushing any existing routes first
# expected to be the first step of a test
add_route()
{
local pfx="$1"
local nh="$2"
local out
if [ "$VERBOSE" = "1" ]; then
echo
echo " ##################################################"
echo
fi
run_cmd "$IP ro flush ${pfx}"
[ $? -ne 0 ] && exit 1
out=$($IP ro ls match ${pfx})
if [ -n "$out" ]; then
echo "Failed to flush routes for prefix used for tests."
exit 1
fi
run_cmd "$IP ro add ${pfx} ${nh}"
if [ $? -ne 0 ]; then
echo "Failed to add initial route for test."
exit 1
fi
}
# add initial route - used in replace route tests
add_initial_route()
{
add_route "172.16.104.0/24" "$1"
}
check_route()
{
local pfx="172.16.104.0/24"
local expected="$1"
local out
local rc=0
out=$($IP ro ls match ${pfx})
if [ -z "${out}" ]; then
if [ "$VERBOSE" = "1" ]; then
printf "\nNo route entry found\n"
printf "Expected:\n"
printf " ${expected}\n"
fi
return 1
fi
# tricky way to convert output to 1-line without ip's
# messy '\'; this drops all extra white space
out=$(echo ${out})
if [ "${out}" != "${expected}" ]; then
rc=1
if [ "${VERBOSE}" = "1" ]; then
printf " Unexpected route entry. Have:\n"
printf " ${out}\n"
printf " Expected:\n"
printf " ${expected}\n\n"
fi
fi
return $rc
}
# assumption is that basic add of a single path route works
# otherwise just adding an address on an interface is broken
ipv4_rt_add()
{
local rc
echo
echo "IPv4 route add / append tests"
# route add same prefix - fails with EEXISTS b/c ip adds NLM_F_EXCL
add_route "172.16.104.0/24" "via 172.16.101.2"
run_cmd "$IP ro add 172.16.104.0/24 via 172.16.103.2"
log_test $? 2 "Attempt to add duplicate route - gw"
# route add same prefix - fails with EEXISTS b/c ip adds NLM_F_EXCL
add_route "172.16.104.0/24" "via 172.16.101.2"
run_cmd "$IP ro add 172.16.104.0/24 dev veth3"
log_test $? 2 "Attempt to add duplicate route - dev only"
# route add same prefix - fails with EEXISTS b/c ip adds NLM_F_EXCL
add_route "172.16.104.0/24" "via 172.16.101.2"
run_cmd "$IP ro add unreachable 172.16.104.0/24"
log_test $? 2 "Attempt to add duplicate route - reject route"
# iproute2 prepend only sets NLM_F_CREATE
# - adds a new route; does NOT convert existing route to ECMP
add_route "172.16.104.0/24" "via 172.16.101.2"
run_cmd "$IP ro prepend 172.16.104.0/24 via 172.16.103.2"
check_route "172.16.104.0/24 via 172.16.103.2 dev veth3 172.16.104.0/24 via 172.16.101.2 dev veth1"
log_test $? 0 "Add new nexthop for existing prefix"
# route append with same prefix adds a new route
# - iproute2 sets NLM_F_CREATE | NLM_F_APPEND
add_route "172.16.104.0/24" "via 172.16.101.2"
run_cmd "$IP ro append 172.16.104.0/24 via 172.16.103.2"
check_route "172.16.104.0/24 via 172.16.101.2 dev veth1 172.16.104.0/24 via 172.16.103.2 dev veth3"
log_test $? 0 "Append nexthop to existing route - gw"
add_route "172.16.104.0/24" "via 172.16.101.2"
run_cmd "$IP ro append 172.16.104.0/24 dev veth3"
check_route "172.16.104.0/24 via 172.16.101.2 dev veth1 172.16.104.0/24 dev veth3 scope link"
log_test $? 0 "Append nexthop to existing route - dev only"
add_route "172.16.104.0/24" "via 172.16.101.2"
run_cmd "$IP ro append unreachable 172.16.104.0/24"
check_route "172.16.104.0/24 via 172.16.101.2 dev veth1 unreachable 172.16.104.0/24"
log_test $? 0 "Append nexthop to existing route - reject route"
run_cmd "$IP ro flush 172.16.104.0/24"
run_cmd "$IP ro add unreachable 172.16.104.0/24"
run_cmd "$IP ro append 172.16.104.0/24 via 172.16.103.2"
check_route "unreachable 172.16.104.0/24 172.16.104.0/24 via 172.16.103.2 dev veth3"
log_test $? 0 "Append nexthop to existing reject route - gw"
run_cmd "$IP ro flush 172.16.104.0/24"
run_cmd "$IP ro add unreachable 172.16.104.0/24"
run_cmd "$IP ro append 172.16.104.0/24 dev veth3"
check_route "unreachable 172.16.104.0/24 172.16.104.0/24 dev veth3 scope link"
log_test $? 0 "Append nexthop to existing reject route - dev only"
# insert mpath directly
add_route "172.16.104.0/24" "nexthop via 172.16.101.2 nexthop via 172.16.103.2"
check_route "172.16.104.0/24 nexthop via 172.16.101.2 dev veth1 weight 1 nexthop via 172.16.103.2 dev veth3 weight 1"
log_test $? 0 "add multipath route"
add_route "172.16.104.0/24" "nexthop via 172.16.101.2 nexthop via 172.16.103.2"
run_cmd "$IP ro add 172.16.104.0/24 nexthop via 172.16.101.2 nexthop via 172.16.103.2"
log_test $? 2 "Attempt to add duplicate multipath route"
# insert of a second route without append but different metric
add_route "172.16.104.0/24" "via 172.16.101.2"
run_cmd "$IP ro add 172.16.104.0/24 via 172.16.103.2 metric 512"
rc=$?
if [ $rc -eq 0 ]; then
run_cmd "$IP ro add 172.16.104.0/24 via 172.16.103.3 metric 256"
rc=$?
fi
log_test $rc 0 "Route add with different metrics"
run_cmd "$IP ro del 172.16.104.0/24 metric 512"
rc=$?
if [ $rc -eq 0 ]; then
check_route "172.16.104.0/24 via 172.16.101.2 dev veth1 172.16.104.0/24 via 172.16.103.3 dev veth3 metric 256"
rc=$?
fi
log_test $rc 0 "Route delete with metric"
}
ipv4_rt_replace_single()
{
# single path with single path
#
add_initial_route "via 172.16.101.2"
run_cmd "$IP ro replace 172.16.104.0/24 via 172.16.103.2"
check_route "172.16.104.0/24 via 172.16.103.2 dev veth3"
log_test $? 0 "Single path with single path"
# single path with multipath
#
add_initial_route "nexthop via 172.16.101.2"
run_cmd "$IP ro replace 172.16.104.0/24 nexthop via 172.16.101.3 nexthop via 172.16.103.2"
check_route "172.16.104.0/24 nexthop via 172.16.101.3 dev veth1 weight 1 nexthop via 172.16.103.2 dev veth3 weight 1"
log_test $? 0 "Single path with multipath"
# single path with reject
#
add_initial_route "nexthop via 172.16.101.2"
run_cmd "$IP ro replace unreachable 172.16.104.0/24"
check_route "unreachable 172.16.104.0/24"
log_test $? 0 "Single path with reject route"
# single path with single path using MULTIPATH attribute
#
add_initial_route "via 172.16.101.2"
run_cmd "$IP ro replace 172.16.104.0/24 nexthop via 172.16.103.2"
check_route "172.16.104.0/24 via 172.16.103.2 dev veth3"
log_test $? 0 "Single path with single path via multipath attribute"
# route replace fails - invalid nexthop
add_initial_route "via 172.16.101.2"
run_cmd "$IP ro replace 172.16.104.0/24 via 2001:db8:104::2"
if [ $? -eq 0 ]; then
# previous command is expected to fail so if it returns 0
# that means the test failed.
log_test 0 1 "Invalid nexthop"
else
check_route "172.16.104.0/24 via 172.16.101.2 dev veth1"
log_test $? 0 "Invalid nexthop"
fi
# replace non-existent route
# - note use of change versus replace since ip adds NLM_F_CREATE
# for replace
add_initial_route "via 172.16.101.2"
run_cmd "$IP ro change 172.16.105.0/24 via 172.16.101.2"
log_test $? 2 "Single path - replace of non-existent route"
}
ipv4_rt_replace_mpath()
{
# multipath with multipath
add_initial_route "nexthop via 172.16.101.2 nexthop via 172.16.103.2"
run_cmd "$IP ro replace 172.16.104.0/24 nexthop via 172.16.101.3 nexthop via 172.16.103.3"
check_route "172.16.104.0/24 nexthop via 172.16.101.3 dev veth1 weight 1 nexthop via 172.16.103.3 dev veth3 weight 1"
log_test $? 0 "Multipath with multipath"
# multipath with single
add_initial_route "nexthop via 172.16.101.2 nexthop via 172.16.103.2"
run_cmd "$IP ro replace 172.16.104.0/24 via 172.16.101.3"
check_route "172.16.104.0/24 via 172.16.101.3 dev veth1"
log_test $? 0 "Multipath with single path"
# multipath with single
add_initial_route "nexthop via 172.16.101.2 nexthop via 172.16.103.2"
run_cmd "$IP ro replace 172.16.104.0/24 nexthop via 172.16.101.3"
check_route "172.16.104.0/24 via 172.16.101.3 dev veth1"
log_test $? 0 "Multipath with single path via multipath attribute"
# multipath with reject
add_initial_route "nexthop via 172.16.101.2 nexthop via 172.16.103.2"
run_cmd "$IP ro replace unreachable 172.16.104.0/24"
check_route "unreachable 172.16.104.0/24"
log_test $? 0 "Multipath with reject route"
# route replace fails - invalid nexthop 1
add_initial_route "nexthop via 172.16.101.2 nexthop via 172.16.103.2"
run_cmd "$IP ro replace 172.16.104.0/24 nexthop via 172.16.111.3 nexthop via 172.16.103.3"
check_route "172.16.104.0/24 nexthop via 172.16.101.2 dev veth1 weight 1 nexthop via 172.16.103.2 dev veth3 weight 1"
log_test $? 0 "Multipath - invalid first nexthop"
# route replace fails - invalid nexthop 2
add_initial_route "nexthop via 172.16.101.2 nexthop via 172.16.103.2"
run_cmd "$IP ro replace 172.16.104.0/24 nexthop via 172.16.101.3 nexthop via 172.16.113.3"
check_route "172.16.104.0/24 nexthop via 172.16.101.2 dev veth1 weight 1 nexthop via 172.16.103.2 dev veth3 weight 1"
log_test $? 0 "Multipath - invalid second nexthop"
# multipath non-existent route
add_initial_route "nexthop via 172.16.101.2 nexthop via 172.16.103.2"
run_cmd "$IP ro change 172.16.105.0/24 nexthop via 172.16.101.3 nexthop via 172.16.103.3"
log_test $? 2 "Multipath - replace of non-existent route"
}
ipv4_rt_replace()
{
echo
echo "IPv4 route replace tests"
ipv4_rt_replace_single
ipv4_rt_replace_mpath
}
ipv4_route_test()
{
route_setup
ipv4_rt_add
ipv4_rt_replace
route_cleanup
}
################################################################################
# usage
usage()
{
cat <<EOF
usage: ${0##*/} OPTS
-t <test> Test(s) to run (default: all)
(options: $TESTS)
-p Pause on fail
-P Pause after each test before cleanup
-v verbose mode (show commands and output)
EOF
}
################################################################################
# main
while getopts :t:pPhv o
do
case $o in
t) TESTS=$OPTARG;;
p) PAUSE_ON_FAIL=yes;;
P) PAUSE=yes;;
v) VERBOSE=$(($VERBOSE + 1));;
h) usage; exit 0;;
*) usage; exit 1;;
esac
done
PEER_CMD="ip netns exec ${PEER_NS}"
# make sure we don't pause twice
[ "${PAUSE}" = "yes" ] && PAUSE_ON_FAIL=no
if [ "$(id -u)" -ne 0 ];then
echo "SKIP: Need root privileges"
exit 0
fi
if [ ! -x "$(command -v ip)" ]; then
echo "SKIP: Could not run test without ip tool"
exit 0
fi
ip route help 2>&1 | grep -q fibmatch
if [ $? -ne 0 ]; then
echo "SKIP: iproute2 too old, missing fibmatch"
exit 0
fi
# start clean
cleanup &> /dev/null
for t in $TESTS
do
case $t in
fib_unreg_test|unregister) fib_unreg_test;;
fib_down_test|down) fib_down_test;;
fib_carrier_test|carrier) fib_carrier_test;;
fib_nexthop_test|nexthop) fib_nexthop_test;;
ipv6_route_test|ipv6_rt) ipv6_route_test;;
ipv4_route_test|ipv4_rt) ipv4_route_test;;
help) echo "Test names: $TESTS"; exit 0;;
esac
done
if [ "$TESTS" != "none" ]; then
printf "\nTests passed: %3d\n" ${nsuccess}
printf "Tests failed: %3d\n" ${nfail}
fi
exit $ret
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