#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
# This test is for checking IPv4 and IPv6 FIB behavior in response to
# different events.
source lib.sh
ret=0
# all tests in this script. Can be overridden with -t option
TESTS="unregister down carrier nexthop suppress ipv6_notify ipv4_notify \
ipv6_rt ipv4_rt ipv6_addr_metric ipv4_addr_metric ipv6_route_metrics \
ipv4_route_metrics ipv4_route_v6_gw rp_filter ipv4_del_addr \
ipv6_del_addr ipv4_mangle ipv6_mangle ipv4_bcast_neigh fib6_gc_test \
ipv4_mpath_list ipv6_mpath_list"
VERBOSE=0
PAUSE_ON_FAIL=no
PAUSE=no
which ping6 > /dev/null 2>&1 && ping6=$(which ping6) || ping6=$(which ping)
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
[ "$a" = "q" ] && exit 1
fi
}
setup()
{
set -e
setup_ns ns1
IP="$(which ip) -netns $ns1"
NS_EXEC="$(which ip) netns exec $ns1"
ip netns exec $ns1 sysctl -qw net.ipv4.ip_forward=1
ip netns exec $ns1 sysctl -qw net.ipv6.conf.all.forwarding=1
$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
cleanup_ns $ns1 $ns2
}
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
sleep 1
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
}
fib_rp_filter_test()
{
echo
echo "IPv4 rp_filter tests"
setup
set -e
setup_ns ns2
$IP link add name veth1 type veth peer name veth2
$IP link set dev veth2 netns $ns2
$IP address add 192.0.2.1/24 dev veth1
ip -netns $ns2 address add 192.0.2.1/24 dev veth2
$IP link set dev veth1 up
ip -netns $ns2 link set dev veth2 up
$IP link set dev lo address 52:54:00:6a:c7:5e
$IP link set dev veth1 address 52:54:00:6a:c7:5e
ip -netns $ns2 link set dev lo address 52:54:00:6a:c7:5e
ip -netns $ns2 link set dev veth2 address 52:54:00:6a:c7:5e
# 1. (ns2) redirect lo's egress to veth2's egress
ip netns exec $ns2 tc qdisc add dev lo parent root handle 1: fq_codel
ip netns exec $ns2 tc filter add dev lo parent 1: protocol arp basic \
action mirred egress redirect dev veth2
ip netns exec $ns2 tc filter add dev lo parent 1: protocol ip basic \
action mirred egress redirect dev veth2
# 2. (ns1) redirect veth1's ingress to lo's ingress
$NS_EXEC tc qdisc add dev veth1 ingress
$NS_EXEC tc filter add dev veth1 ingress protocol arp basic \
action mirred ingress redirect dev lo
$NS_EXEC tc filter add dev veth1 ingress protocol ip basic \
action mirred ingress redirect dev lo
# 3. (ns1) redirect lo's egress to veth1's egress
$NS_EXEC tc qdisc add dev lo parent root handle 1: fq_codel
$NS_EXEC tc filter add dev lo parent 1: protocol arp basic \
action mirred egress redirect dev veth1
$NS_EXEC tc filter add dev lo parent 1: protocol ip basic \
action mirred egress redirect dev veth1
# 4. (ns2) redirect veth2's ingress to lo's ingress
ip netns exec $ns2 tc qdisc add dev veth2 ingress
ip netns exec $ns2 tc filter add dev veth2 ingress protocol arp basic \
action mirred ingress redirect dev lo
ip netns exec $ns2 tc filter add dev veth2 ingress protocol ip basic \
action mirred ingress redirect dev lo
$NS_EXEC sysctl -qw net.ipv4.conf.all.rp_filter=1
$NS_EXEC sysctl -qw net.ipv4.conf.all.accept_local=1
$NS_EXEC sysctl -qw net.ipv4.conf.all.route_localnet=1
ip netns exec $ns2 sysctl -qw net.ipv4.conf.all.rp_filter=1
ip netns exec $ns2 sysctl -qw net.ipv4.conf.all.accept_local=1
ip netns exec $ns2 sysctl -qw net.ipv4.conf.all.route_localnet=1
set +e
run_cmd "ip netns exec $ns2 ping -w1 -c1 192.0.2.1"
log_test $? 0 "rp_filter passes local packets"
run_cmd "ip netns exec $ns2 ping -w1 -c1 127.0.0.1"
log_test $? 0 "rp_filter passes loopback packets"
cleanup
}
################################################################################
# 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
}
fib6_notify_test()
{
setup
echo
echo "Fib6 info length calculation in route notify test"
set -e
for i in 10 20 30 40 50 60 70;
do
$IP link add dummy_$i type dummy
$IP link set dev dummy_$i up
$IP -6 address add 2001:$i::1/64 dev dummy_$i
done
$NS_EXEC ip monitor route &> errors.txt &
sleep 2
$IP -6 route add 2001::/64 \
nexthop via 2001:10::2 dev dummy_10 \
nexthop encap ip6 dst 2002::20 via 2001:20::2 dev dummy_20 \
nexthop encap ip6 dst 2002::30 via 2001:30::2 dev dummy_30 \
nexthop encap ip6 dst 2002::40 via 2001:40::2 dev dummy_40 \
nexthop encap ip6 dst 2002::50 via 2001:50::2 dev dummy_50 \
nexthop encap ip6 dst 2002::60 via 2001:60::2 dev dummy_60 \
nexthop encap ip6 dst 2002::70 via 2001:70::2 dev dummy_70
set +e
err=`cat errors.txt |grep "Message too long"`
if [ -z "$err" ];then
ret=0
else
ret=1
fi
log_test $ret 0 "ipv6 route add notify"
{ kill %% && wait %%; } 2>/dev/null
#rm errors.txt
cleanup &> /dev/null
}
fib_notify_test()
{
setup
echo
echo "Fib4 info length calculation in route notify test"
set -e
for i in 10 20 30 40 50 60 70;
do
$IP link add dummy_$i type dummy
$IP link set dev dummy_$i up
$IP address add 20.20.$i.2/24 dev dummy_$i
done
$NS_EXEC ip monitor route &> errors.txt &
sleep 2
$IP route add 10.0.0.0/24 \
nexthop via 20.20.10.1 dev dummy_10 \
nexthop encap ip dst 192.168.10.20 via 20.20.20.1 dev dummy_20 \
nexthop encap ip dst 192.168.10.30 via 20.20.30.1 dev dummy_30 \
nexthop encap ip dst 192.168.10.40 via 20.20.40.1 dev dummy_40 \
nexthop encap ip dst 192.168.10.50 via 20.20.50.1 dev dummy_50 \
nexthop encap ip dst 192.168.10.60 via 20.20.60.1 dev dummy_60 \
nexthop encap ip dst 192.168.10.70 via 20.20.70.1 dev dummy_70
set +e
err=`cat errors.txt |grep "Message too long"`
if [ -z "$err" ];then
ret=0
else
ret=1
fi
log_test $ret 0 "ipv4 route add notify"
{ kill %% && wait %%; } 2>/dev/null
rm errors.txt
cleanup &> /dev/null
}
# Create a new dummy_10 to remove all associated routes.
reset_dummy_10()
{
$IP link del dev dummy_10
$IP link add dummy_10 type dummy
$IP link set dev dummy_10 up
$IP -6 address add 2001:10::1/64 dev dummy_10
}
check_rt_num()
{
local expected=$1
local num=$2
if [ $num -ne $expected ]; then
echo "FAIL: Expected $expected routes, got $num"
ret=1
else
ret=0
fi
}
check_rt_num_clean()
{
local expected=$1
local num=$2
if [ $num -ne $expected ]; then
log_test 1 0 "expected $expected routes, got $num"
set +e
cleanup &> /dev/null
return 1
fi
return 0
}
fib6_gc_test()
{
setup
echo
echo "Fib6 garbage collection test"
set -e
EXPIRE=5
GC_WAIT_TIME=$((EXPIRE * 2 + 2))
# Check expiration of routes every $EXPIRE seconds (GC)
$NS_EXEC sysctl -wq net.ipv6.route.gc_interval=$EXPIRE
$IP link add dummy_10 type dummy
$IP link set dev dummy_10 up
$IP -6 address add 2001:10::1/64 dev dummy_10
$NS_EXEC sysctl -wq net.ipv6.route.flush=1
# Temporary routes
for i in $(seq 1 5); do
# Expire route after $EXPIRE seconds
$IP -6 route add 2001:20::$i \
via 2001:10::2 dev dummy_10 expires $EXPIRE
done
sleep $GC_WAIT_TIME
$NS_EXEC sysctl -wq net.ipv6.route.flush=1
check_rt_num 0 $($IP -6 route list |grep expires|wc -l)
log_test $ret 0 "ipv6 route garbage collection"
reset_dummy_10
# Permanent routes
for i in $(seq 1 5); do
$IP -6 route add 2001:30::$i \
via 2001:10::2 dev dummy_10
done
# Temporary routes
for i in $(seq 1 5); do
# Expire route after $EXPIRE seconds
$IP -6 route add 2001:20::$i \
via 2001:10::2 dev dummy_10 expires $EXPIRE
done
# Wait for GC
sleep $GC_WAIT_TIME
check_rt_num 0 $($IP -6 route list |grep expires|wc -l)
log_test $ret 0 "ipv6 route garbage collection (with permanent routes)"
reset_dummy_10
# Permanent routes
for i in $(seq 1 5); do
$IP -6 route add 2001:20::$i \
via 2001:10::2 dev dummy_10
done
# Replace with temporary routes
for i in $(seq 1 5); do
# Expire route after $EXPIRE seconds
$IP -6 route replace 2001:20::$i \
via 2001:10::2 dev dummy_10 expires $EXPIRE
done
# Wait for GC
sleep $GC_WAIT_TIME
check_rt_num 0 $($IP -6 route list |grep expires|wc -l)
log_test $ret 0 "ipv6 route garbage collection (replace with expires)"
reset_dummy_10
# Temporary routes
for i in $(seq 1 5); do
# Expire route after $EXPIRE seconds
$IP -6 route add 2001:20::$i \
via 2001:10::2 dev dummy_10 expires $EXPIRE
done
# Replace with permanent routes
for i in $(seq 1 5); do
$IP -6 route replace 2001:20::$i \
via 2001:10::2 dev dummy_10
done
check_rt_num_clean 0 $($IP -6 route list |grep expires|wc -l) || return
# Wait for GC
sleep $GC_WAIT_TIME
check_rt_num 5 $($IP -6 route list |grep -v expires|grep 2001:20::|wc -l)
log_test $ret 0 "ipv6 route garbage collection (replace with permanent)"
# ra6 is required for the next test. (ipv6toolkit)
if [ ! -x "$(command -v ra6)" ]; then
echo "SKIP: ra6 not found."
set +e
cleanup &> /dev/null
return
fi
# Delete dummy_10 and remove all routes
$IP link del dev dummy_10
# Create a pair of veth devices to send a RA message from one
# device to another.
$IP link add veth1 type veth peer name veth2
$IP link set dev veth1 up
$IP link set dev veth2 up
$IP -6 address add 2001:10::1/64 dev veth1 nodad
$IP -6 address add 2001:10::2/64 dev veth2 nodad
# Make veth1 ready to receive RA messages.
$NS_EXEC sysctl -wq net.ipv6.conf.veth1.accept_ra=2
# Send a RA message with a route from veth2 to veth1.
$NS_EXEC ra6 -i veth2 -d 2001:10::1 -t $EXPIRE
# Wait for the RA message.
sleep 1
# systemd may mess up the test. You syould make sure that
# systemd-networkd.service and systemd-networkd.socket are stopped.
check_rt_num_clean 1 $($IP -6 route list|grep expires|wc -l) || return
# Wait for GC
sleep $GC_WAIT_TIME
check_rt_num 0 $($IP -6 route list |grep expires|wc -l)
log_test $ret 0 "ipv6 route garbage collection (RA message)"
set +e
cleanup &> /dev/null
}
fib_suppress_test()
{
echo
echo "FIB rule with suppress_prefixlength"
setup
$IP link add dummy1 type dummy
$IP link set dummy1 up
$IP -6 route add default dev dummy1
$IP -6 rule add table main suppress_prefixlength 0
ping -f -c 1000 -W 1 1234::1 >/dev/null 2>&1
$IP -6 rule del table main suppress_prefixlength 0
$IP link del dummy1
# If we got here without crashing, we're good.
log_test 0 0 "FIB rule suppress test"
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
}
check_expected()
{
local out="$1"
local expected="$2"
local rc=0
[ "${out}" = "${expected}" ] && return 0
if [ -z "${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
}
# 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
local expected="$1"
local out
local rc=0
set -- $expected
pfx=$1
out=$($IP -6 ro ls match ${pfx} | sed -e 's/ pref medium//')
check_expected "${out}" "${expected}"
}
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
setup_ns ns2
ip netns exec $ns2 sysctl -qw net.ipv4.ip_forward=1
ip netns exec $ns2 sysctl -qw net.ipv6.conf.all.forwarding=1
$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 netns $ns2 up
$IP li set veth4 netns $ns2 up
ip -netns $ns2 li add dummy1 type dummy
ip -netns $ns2 li set dummy1 up
$IP -6 addr add 2001:db8:101::1/64 dev veth1 nodad
$IP -6 addr add 2001:db8:103::1/64 dev veth3 nodad
$IP addr add 172.16.101.1/24 dev veth1
$IP addr add 172.16.103.1/24 dev veth3
ip -netns $ns2 -6 addr add 2001:db8:101::2/64 dev veth2 nodad
ip -netns $ns2 -6 addr add 2001:db8:103::2/64 dev veth4 nodad
ip -netns $ns2 -6 addr add 2001:db8:104::1/64 dev dummy1 nodad
ip -netns $ns2 addr add 172.16.101.2/24 dev veth2
ip -netns $ns2 addr add 172.16.103.2/24 dev veth4
ip -netns $ns2 addr add 172.16.104.1/24 dev dummy1
set +e
}
# assumption is that basic add of a single path route works
# otherwise just adding an address on an interface is broken
ipv6_rt_add()
{
local rc
echo
echo "IPv6 route add / append tests"
# route add same prefix - fails with EEXISTS b/c ip adds NLM_F_EXCL
add_route6 "2001:db8:104::/64" "via 2001:db8:101::2"
run_cmd "$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 $? 2 "Attempt to add duplicate route - reject route"
# route append with same prefix adds a new route
# - iproute2 sets NLM_F_CREATE | NLM_F_APPEND
add_route6 "2001:db8:104::/64" "via 2001:db8:101::2"
run_cmd "$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"
# 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 $? 0 "Single path with multipath"
# single path with single path using MULTIPATH attribute
#
add_initial_route6 "via 2001:db8:101::2"
run_cmd "$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 $? 0 "Multipath with single path via multipath attribute"
# multipath with dev-only
add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
run_cmd "$IP -6 ro replace 2001:db8:104::/64 dev veth1"
check_route6 "2001:db8:104::/64 dev veth1 metric 1024"
log_test $? 0 "Multipath with dev-only"
# route replace fails - invalid nexthop 1
add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
run_cmd "$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 $? 2 "Multipath - replace of non-existent route"
}
ipv6_rt_replace()
{
echo
echo "IPv6 route replace tests"
ipv6_rt_replace_single
ipv6_rt_replace_mpath
}
ipv6_rt_dsfield()
{
echo
echo "IPv6 route with dsfield tests"
run_cmd "$IP -6 route flush 2001:db8:102::/64"
# IPv6 doesn't support routing based on dsfield
run_cmd "$IP -6 route add 2001:db8:102::/64 dsfield 0x04 via 2001:db8:101::2"
log_test $? 2 "Reject route with dsfield"
}
ipv6_route_test()
{
route_setup
ipv6_rt_add
ipv6_rt_replace
ipv6_rt_dsfield
route_cleanup
}
ip_addr_metric_check()
{
ip addr help 2>&1 | grep -q metric
if [ $? -ne 0 ]; then
echo "iproute2 command does not support metric for addresses. Skipping test"
return 1
fi
return 0
}
ipv6_addr_metric_test()
{
local rc
echo
echo "IPv6 prefix route tests"
ip_addr_metric_check || return 1
setup
set -e
$IP li add dummy1 type dummy
$IP li add dummy2 type dummy
$IP li set dummy1 up
$IP li set dummy2 up
# default entry is metric 256
run_cmd "$IP -6 addr add dev dummy1 2001:db8:104::1/64"
run_cmd "$IP -6 addr add dev dummy2 2001:db8:104::2/64"
set +e
check_route6 "2001:db8:104::/64 dev dummy1 proto kernel metric 256 2001:db8:104::/64 dev dummy2 proto kernel metric 256"
log_test $? 0 "Default metric"
set -e
run_cmd "$IP -6 addr flush dev dummy1"
run_cmd "$IP -6 addr add dev dummy1 2001:db8:104::1/64 metric 257"
set +e
check_route6 "2001:db8:104::/64 dev dummy2 proto kernel metric 256 2001:db8:104::/64 dev dummy1 proto kernel metric 257"
log_test $? 0 "User specified metric on first device"
set -e
run_cmd "$IP -6 addr flush dev dummy2"
run_cmd "$IP -6 addr add dev dummy2 2001:db8:104::2/64 metric 258"
set +e
check_route6 "2001:db8:104::/64 dev dummy1 proto kernel metric 257 2001:db8:104::/64 dev dummy2 proto kernel metric 258"
log_test $? 0 "User specified metric on second device"
run_cmd "$IP -6 addr del dev dummy1 2001:db8:104::1/64 metric 257"
rc=$?
if [ $rc -eq 0 ]; then
check_route6 "2001:db8:104::/64 dev dummy2 proto kernel metric 258"
rc=$?
fi
log_test $rc 0 "Delete of address on first device"
run_cmd "$IP -6 addr change dev dummy2 2001:db8:104::2/64 metric 259"
rc=$?
if [ $rc -eq 0 ]; then
check_route6 "2001:db8:104::/64 dev dummy2 proto kernel metric 259"
rc=$?
fi
log_test $rc 0 "Modify metric of address"
# verify prefix route removed on down
run_cmd "ip netns exec $ns1 sysctl -qw net.ipv6.conf.all.keep_addr_on_down=1"
run_cmd "$IP li set dev dummy2 down"
rc=$?
if [ $rc -eq 0 ]; then
out=$($IP -6 ro ls match 2001:db8:104::/64)
check_expected "${out}" ""
rc=$?
fi
log_test $rc 0 "Prefix route removed on link down"
# verify prefix route re-inserted with assigned metric
run_cmd "$IP li set dev dummy2 up"
rc=$?
if [ $rc -eq 0 ]; then
check_route6 "2001:db8:104::/64 dev dummy2 proto kernel metric 259"
rc=$?
fi
log_test $rc 0 "Prefix route with metric on link up"
# verify peer metric added correctly
set -e
run_cmd "$IP -6 addr flush dev dummy2"
run_cmd "$IP -6 addr add dev dummy2 2001:db8:104::1 peer 2001:db8:104::2 metric 260"
set +e
check_route6 "2001:db8:104::1 dev dummy2 proto kernel metric 260"
log_test $? 0 "Set metric with peer route on local side"
check_route6 "2001:db8:104::2 dev dummy2 proto kernel metric 260"
log_test $? 0 "Set metric with peer route on peer side"
set -e
run_cmd "$IP -6 addr change dev dummy2 2001:db8:104::1 peer 2001:db8:104::3 metric 261"
set +e
check_route6 "2001:db8:104::1 dev dummy2 proto kernel metric 261"
log_test $? 0 "Modify metric and peer address on local side"
check_route6 "2001:db8:104::3 dev dummy2 proto kernel metric 261"
log_test $? 0 "Modify metric and peer address on peer side"
$IP li del dummy1
$IP li del dummy2
cleanup
}
ipv6_route_metrics_test()
{
local rc
echo
echo "IPv6 routes with metrics"
route_setup
#
# single path with metrics
#
run_cmd "$IP -6 ro add 2001:db8:111::/64 via 2001:db8:101::2 mtu 1400"
rc=$?
if [ $rc -eq 0 ]; then
check_route6 "2001:db8:111::/64 via 2001:db8:101::2 dev veth1 metric 1024 mtu 1400"
rc=$?
fi
log_test $rc 0 "Single path route with mtu metric"
#
# multipath via separate routes with metrics
#
run_cmd "$IP -6 ro add 2001:db8:112::/64 via 2001:db8:101::2 mtu 1400"
run_cmd "$IP -6 ro append 2001:db8:112::/64 via 2001:db8:103::2"
rc=$?
if [ $rc -eq 0 ]; then
check_route6 "2001:db8:112::/64 metric 1024 mtu 1400 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1"
rc=$?
fi
log_test $rc 0 "Multipath route via 2 single routes with mtu metric on first"
# second route is coalesced to first to make a multipath route.
# MTU of the second path is hidden from display!
run_cmd "$IP -6 ro add 2001:db8:113::/64 via 2001:db8:101::2"
run_cmd "$IP -6 ro append 2001:db8:113::/64 via 2001:db8:103::2 mtu 1400"
rc=$?
if [ $rc -eq 0 ]; then
check_route6 "2001:db8:113::/64 metric 1024 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1"
rc=$?
fi
log_test $rc 0 "Multipath route via 2 single routes with mtu metric on 2nd"
run_cmd "$IP -6 ro del 2001:db8:113::/64 via 2001:db8:101::2"
if [ $? -eq 0 ]; then
check_route6 "2001:db8:113::/64 via 2001:db8:103::2 dev veth3 metric 1024 mtu 1400"
log_test $? 0 " MTU of second leg"
fi
#
# multipath with metrics
#
run_cmd "$IP -6 ro add 2001:db8:115::/64 mtu 1400 nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
rc=$?
if [ $rc -eq 0 ]; then
check_route6 "2001:db8:115::/64 metric 1024 mtu 1400 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1"
rc=$?
fi
log_test $rc 0 "Multipath route with mtu metric"
$IP -6 ro add 2001:db8:104::/64 via 2001:db8:101::2 mtu 1300
run_cmd "ip netns exec $ns1 ${ping6} -w1 -c1 -s 1500 2001:db8:104::1"
log_test $? 0 "Using route with mtu metric"
run_cmd "$IP -6 ro add 2001:db8:114::/64 via 2001:db8:101::2 congctl lock foo"
log_test $? 2 "Invalid metric (fails metric_convert)"
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
local expected="$1"
local out
set -- $expected
pfx=$1
[ "${pfx}" = "unreachable" ] && pfx=$2
out=$($IP ro ls match ${pfx})
check_expected "${out}" "${expected}"
}
# assumption is that basic add of a single path route works
# otherwise just adding an address on an interface is broken
ipv4_rt_add()
{
local rc
echo
echo "IPv4 route add / append tests"
# route add same prefix - fails with EEXISTS b/c ip adds NLM_F_EXCL
add_route "172.16.104.0/24" "via 172.16.101.2"
run_cmd "$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
}
# checks that cached input route on VRF port is deleted
# when VRF is deleted
ipv4_local_rt_cache()
{
run_cmd "ip addr add 10.0.0.1/32 dev lo"
run_cmd "setup_ns test-ns"
run_cmd "ip link add veth-outside type veth peer name veth-inside"
run_cmd "ip link add vrf-100 type vrf table 1100"
run_cmd "ip link set veth-outside master vrf-100"
run_cmd "ip link set veth-inside netns $test-ns"
run_cmd "ip link set veth-outside up"
run_cmd "ip link set vrf-100 up"
run_cmd "ip route add 10.1.1.1/32 dev veth-outside table 1100"
run_cmd "ip netns exec $test-ns ip link set veth-inside up"
run_cmd "ip netns exec $test-ns ip addr add 10.1.1.1/32 dev veth-inside"
run_cmd "ip netns exec $test-ns ip route add 10.0.0.1/32 dev veth-inside"
run_cmd "ip netns exec $test-ns ip route add default via 10.0.0.1"
run_cmd "ip netns exec $test-ns ping 10.0.0.1 -c 1 -i 1"
run_cmd "ip link delete vrf-100"
# if we do not hang test is a success
log_test $? 0 "Cached route removed from VRF port device"
}
ipv4_rt_dsfield()
{
echo
echo "IPv4 route with dsfield tests"
run_cmd "$IP route flush 172.16.102.0/24"
# New routes should reject dsfield options that interfere with ECN
run_cmd "$IP route add 172.16.102.0/24 dsfield 0x01 via 172.16.101.2"
log_test $? 2 "Reject route with dsfield 0x01"
run_cmd "$IP route add 172.16.102.0/24 dsfield 0x02 via 172.16.101.2"
log_test $? 2 "Reject route with dsfield 0x02"
run_cmd "$IP route add 172.16.102.0/24 dsfield 0x03 via 172.16.101.2"
log_test $? 2 "Reject route with dsfield 0x03"
# A generic route that doesn't take DSCP into account
run_cmd "$IP route add 172.16.102.0/24 via 172.16.101.2"
# A more specific route for DSCP 0x10
run_cmd "$IP route add 172.16.102.0/24 dsfield 0x10 via 172.16.103.2"
# DSCP 0x10 should match the specific route, no matter the ECN bits
$IP route get fibmatch 172.16.102.1 dsfield 0x10 | \
grep -q "172.16.102.0/24 tos 0x10 via 172.16.103.2"
log_test $? 0 "IPv4 route with DSCP and ECN:Not-ECT"
$IP route get fibmatch 172.16.102.1 dsfield 0x11 | \
grep -q "172.16.102.0/24 tos 0x10 via 172.16.103.2"
log_test $? 0 "IPv4 route with DSCP and ECN:ECT(1)"
$IP route get fibmatch 172.16.102.1 dsfield 0x12 | \
grep -q "172.16.102.0/24 tos 0x10 via 172.16.103.2"
log_test $? 0 "IPv4 route with DSCP and ECN:ECT(0)"
$IP route get fibmatch 172.16.102.1 dsfield 0x13 | \
grep -q "172.16.102.0/24 tos 0x10 via 172.16.103.2"
log_test $? 0 "IPv4 route with DSCP and ECN:CE"
# Unknown DSCP should match the generic route, no matter the ECN bits
$IP route get fibmatch 172.16.102.1 dsfield 0x14 | \
grep -q "172.16.102.0/24 via 172.16.101.2"
log_test $? 0 "IPv4 route with unknown DSCP and ECN:Not-ECT"
$IP route get fibmatch 172.16.102.1 dsfield 0x15 | \
grep -q "172.16.102.0/24 via 172.16.101.2"
log_test $? 0 "IPv4 route with unknown DSCP and ECN:ECT(1)"
$IP route get fibmatch 172.16.102.1 dsfield 0x16 | \
grep -q "172.16.102.0/24 via 172.16.101.2"
log_test $? 0 "IPv4 route with unknown DSCP and ECN:ECT(0)"
$IP route get fibmatch 172.16.102.1 dsfield 0x17 | \
grep -q "172.16.102.0/24 via 172.16.101.2"
log_test $? 0 "IPv4 route with unknown DSCP and ECN:CE"
# Null DSCP should match the generic route, no matter the ECN bits
$IP route get fibmatch 172.16.102.1 dsfield 0x00 | \
grep -q "172.16.102.0/24 via 172.16.101.2"
log_test $? 0 "IPv4 route with no DSCP and ECN:Not-ECT"
$IP route get fibmatch 172.16.102.1 dsfield 0x01 | \
grep -q "172.16.102.0/24 via 172.16.101.2"
log_test $? 0 "IPv4 route with no DSCP and ECN:ECT(1)"
$IP route get fibmatch 172.16.102.1 dsfield 0x02 | \
grep -q "172.16.102.0/24 via 172.16.101.2"
log_test $? 0 "IPv4 route with no DSCP and ECN:ECT(0)"
$IP route get fibmatch 172.16.102.1 dsfield 0x03 | \
grep -q "172.16.102.0/24 via 172.16.101.2"
log_test $? 0 "IPv4 route with no DSCP and ECN:CE"
}
ipv4_route_test()
{
route_setup
ipv4_rt_add
ipv4_rt_replace
ipv4_local_rt_cache
ipv4_rt_dsfield
route_cleanup
}
ipv4_addr_metric_test()
{
local rc
echo
echo "IPv4 prefix route tests"
ip_addr_metric_check || return 1
setup
set -e
$IP li add dummy1 type dummy
$IP li add dummy2 type dummy
$IP li set dummy1 up
$IP li set dummy2 up
# default entry is metric 256
run_cmd "$IP addr add dev dummy1 172.16.104.1/24"
run_cmd "$IP addr add dev dummy2 172.16.104.2/24"
set +e
check_route "172.16.104.0/24 dev dummy1 proto kernel scope link src 172.16.104.1 172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.2"
log_test $? 0 "Default metric"
set -e
run_cmd "$IP addr flush dev dummy1"
run_cmd "$IP addr add dev dummy1 172.16.104.1/24 metric 257"
set +e
check_route "172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.2 172.16.104.0/24 dev dummy1 proto kernel scope link src 172.16.104.1 metric 257"
log_test $? 0 "User specified metric on first device"
set -e
run_cmd "$IP addr flush dev dummy2"
run_cmd "$IP addr add dev dummy2 172.16.104.2/24 metric 258"
set +e
check_route "172.16.104.0/24 dev dummy1 proto kernel scope link src 172.16.104.1 metric 257 172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.2 metric 258"
log_test $? 0 "User specified metric on second device"
run_cmd "$IP addr del dev dummy1 172.16.104.1/24 metric 257"
rc=$?
if [ $rc -eq 0 ]; then
check_route "172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.2 metric 258"
rc=$?
fi
log_test $rc 0 "Delete of address on first device"
run_cmd "$IP addr change dev dummy2 172.16.104.2/24 metric 259"
rc=$?
if [ $rc -eq 0 ]; then
check_route "172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.2 metric 259"
rc=$?
fi
log_test $rc 0 "Modify metric of address"
# verify prefix route removed on down
run_cmd "$IP li set dev dummy2 down"
rc=$?
if [ $rc -eq 0 ]; then
out=$($IP ro ls match 172.16.104.0/24)
check_expected "${out}" ""
rc=$?
fi
log_test $rc 0 "Prefix route removed on link down"
# verify prefix route re-inserted with assigned metric
run_cmd "$IP li set dev dummy2 up"
rc=$?
if [ $rc -eq 0 ]; then
check_route "172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.2 metric 259"
rc=$?
fi
log_test $rc 0 "Prefix route with metric on link up"
# explicitly check for metric changes on edge scenarios
run_cmd "$IP addr flush dev dummy2"
run_cmd "$IP addr add dev dummy2 172.16.104.0/24 metric 259"
run_cmd "$IP addr change dev dummy2 172.16.104.0/24 metric 260"
rc=$?
if [ $rc -eq 0 ]; then
check_route "172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.0 metric 260"
rc=$?
fi
log_test $rc 0 "Modify metric of .0/24 address"
run_cmd "$IP addr flush dev dummy2"
run_cmd "$IP addr add dev dummy2 172.16.104.1/32 peer 172.16.104.2 metric 260"
rc=$?
if [ $rc -eq 0 ]; then
check_route "172.16.104.2 dev dummy2 proto kernel scope link src 172.16.104.1 metric 260"
rc=$?
fi
log_test $rc 0 "Set metric of address with peer route"
run_cmd "$IP addr change dev dummy2 172.16.104.1/32 peer 172.16.104.3 metric 261"
rc=$?
if [ $rc -eq 0 ]; then
check_route "172.16.104.3 dev dummy2 proto kernel scope link src 172.16.104.1 metric 261"
rc=$?
fi
log_test $rc 0 "Modify metric and peer address for peer route"
$IP li del dummy1
$IP li del dummy2
cleanup
}
ipv4_route_metrics_test()
{
local rc
echo
echo "IPv4 route add / append tests"
route_setup
run_cmd "$IP ro add 172.16.111.0/24 via 172.16.101.2 mtu 1400"
rc=$?
if [ $rc -eq 0 ]; then
check_route "172.16.111.0/24 via 172.16.101.2 dev veth1 mtu 1400"
rc=$?
fi
log_test $rc 0 "Single path route with mtu metric"
run_cmd "$IP ro add 172.16.112.0/24 mtu 1400 nexthop via 172.16.101.2 nexthop via 172.16.103.2"
rc=$?
if [ $rc -eq 0 ]; then
check_route "172.16.112.0/24 mtu 1400 nexthop via 172.16.101.2 dev veth1 weight 1 nexthop via 172.16.103.2 dev veth3 weight 1"
rc=$?
fi
log_test $rc 0 "Multipath route with mtu metric"
$IP ro add 172.16.104.0/24 via 172.16.101.2 mtu 1300
run_cmd "ip netns exec $ns1 ping -w1 -c1 -s 1500 172.16.104.1"
log_test $? 0 "Using route with mtu metric"
run_cmd "$IP ro add 172.16.111.0/24 via 172.16.101.2 congctl lock foo"
log_test $? 2 "Invalid metric (fails metric_convert)"
route_cleanup
}
ipv4_del_addr_test()
{
echo
echo "IPv4 delete address route tests"
setup
set -e
$IP li add dummy1 type dummy
$IP li set dummy1 up
$IP li add dummy2 type dummy
$IP li set dummy2 up
$IP li add red type vrf table 1111
$IP li set red up
$IP ro add vrf red unreachable default
$IP li set dummy2 vrf red
$IP addr add dev dummy1 172.16.104.1/24
$IP addr add dev dummy1 172.16.104.11/24
$IP addr add dev dummy1 172.16.104.12/24
$IP addr add dev dummy1 172.16.104.13/24
$IP addr add dev dummy2 172.16.104.1/24
$IP addr add dev dummy2 172.16.104.11/24
$IP addr add dev dummy2 172.16.104.12/24
$IP route add 172.16.105.0/24 via 172.16.104.2 src 172.16.104.11
$IP route add 172.16.106.0/24 dev lo src 172.16.104.12
$IP route add table 0 172.16.107.0/24 via 172.16.104.2 src 172.16.104.13
$IP route add vrf red 172.16.105.0/24 via 172.16.104.2 src 172.16.104.11
$IP route add vrf red 172.16.106.0/24 dev lo src 172.16.104.12
set +e
# removing address from device in vrf should only remove route from vrf table
echo " Regular FIB info"
$IP addr del dev dummy2 172.16.104.11/24
$IP ro ls vrf red | grep -q 172.16.105.0/24
log_test $? 1 "Route removed from VRF when source address deleted"
$IP ro ls | grep -q 172.16.105.0/24
log_test $? 0 "Route in default VRF not removed"
$IP addr add dev dummy2 172.16.104.11/24
$IP route add vrf red 172.16.105.0/24 via 172.16.104.2 src 172.16.104.11
$IP addr del dev dummy1 172.16.104.11/24
$IP ro ls | grep -q 172.16.105.0/24
log_test $? 1 "Route removed in default VRF when source address deleted"
$IP ro ls vrf red | grep -q 172.16.105.0/24
log_test $? 0 "Route in VRF is not removed by address delete"
# removing address from device in vrf should only remove route from vrf
# table even when the associated fib info only differs in table ID
echo " Identical FIB info with different table ID"
$IP addr del dev dummy2 172.16.104.12/24
$IP ro ls vrf red | grep -q 172.16.106.0/24
log_test $? 1 "Route removed from VRF when source address deleted"
$IP ro ls | grep -q 172.16.106.0/24
log_test $? 0 "Route in default VRF not removed"
$IP addr add dev dummy2 172.16.104.12/24
$IP route add vrf red 172.16.106.0/24 dev lo src 172.16.104.12
$IP addr del dev dummy1 172.16.104.12/24
$IP ro ls | grep -q 172.16.106.0/24
log_test $? 1 "Route removed in default VRF when source address deleted"
$IP ro ls vrf red | grep -q 172.16.106.0/24
log_test $? 0 "Route in VRF is not removed by address delete"
# removing address from device in default vrf should remove route from
# the default vrf even when route was inserted with a table ID of 0.
echo " Table ID 0"
$IP addr del dev dummy1 172.16.104.13/24
$IP ro ls | grep -q 172.16.107.0/24
log_test $? 1 "Route removed in default VRF when source address deleted"
$IP li del dummy1
$IP li del dummy2
cleanup
}
ipv6_del_addr_test()
{
echo
echo "IPv6 delete address route tests"
setup
set -e
for i in $(seq 6); do
$IP li add dummy${i} up type dummy
done
$IP li add red up type vrf table 1111
$IP ro add vrf red unreachable default
for i in $(seq 4 6); do
$IP li set dummy${i} vrf red
done
$IP addr add dev dummy1 fe80::1/128
$IP addr add dev dummy1 2001:db8:101::1/64
$IP addr add dev dummy1 2001:db8:101::10/64
$IP addr add dev dummy1 2001:db8:101::11/64
$IP addr add dev dummy1 2001:db8:101::12/64
$IP addr add dev dummy1 2001:db8:101::13/64
$IP addr add dev dummy1 2001:db8:101::14/64
$IP addr add dev dummy1 2001:db8:101::15/64
$IP addr add dev dummy2 fe80::1/128
$IP addr add dev dummy2 2001:db8:101::1/64
$IP addr add dev dummy2 2001:db8:101::11/64
$IP addr add dev dummy3 fe80::1/128
$IP addr add dev dummy4 2001:db8:101::1/64
$IP addr add dev dummy4 2001:db8:101::10/64
$IP addr add dev dummy4 2001:db8:101::11/64
$IP addr add dev dummy4 2001:db8:101::12/64
$IP addr add dev dummy4 2001:db8:101::13/64
$IP addr add dev dummy4 2001:db8:101::14/64
$IP addr add dev dummy5 2001:db8:101::1/64
$IP addr add dev dummy5 2001:db8:101::11/64
# Single device using src address
$IP route add 2001:db8:110::/64 dev dummy3 src 2001:db8:101::10
# Two devices with the same source address
$IP route add 2001:db8:111::/64 dev dummy3 src 2001:db8:101::11
# VRF with single device using src address
$IP route add vrf red 2001:db8:110::/64 dev dummy6 src 2001:db8:101::10
# VRF with two devices using src address
$IP route add vrf red 2001:db8:111::/64 dev dummy6 src 2001:db8:101::11
# src address and nexthop dev in same VRF
$IP route add 2001:db8:112::/64 dev dummy3 src 2001:db8:101::12
$IP route add vrf red 2001:db8:112::/64 dev dummy6 src 2001:db8:101::12
# src address and nexthop device in different VRF
$IP route add 2001:db8:113::/64 dev lo src 2001:db8:101::13
$IP route add vrf red 2001:db8:113::/64 dev lo src 2001:db8:101::13
# table ID 0
$IP route add table 0 2001:db8:115::/64 via 2001:db8:101::2 src 2001:db8:101::15
# Link local source route
$IP route add 2001:db8:116::/64 dev dummy2 src fe80::1
$IP route add 2001:db8:117::/64 dev dummy3 src fe80::1
set +e
echo " Single device using src address"
$IP addr del dev dummy1 2001:db8:101::10/64
$IP -6 route show | grep -q "src 2001:db8:101::10 "
log_test $? 1 "Prefsrc removed when src address removed on other device"
echo " Two devices with the same source address"
$IP addr del dev dummy1 2001:db8:101::11/64
$IP -6 route show | grep -q "src 2001:db8:101::11 "
log_test $? 0 "Prefsrc not removed when src address exist on other device"
$IP addr del dev dummy2 2001:db8:101::11/64
$IP -6 route show | grep -q "src 2001:db8:101::11 "
log_test $? 1 "Prefsrc removed when src address removed on all devices"
echo " VRF with single device using src address"
$IP addr del dev dummy4 2001:db8:101::10/64
$IP -6 route show vrf red | grep -q "src 2001:db8:101::10 "
log_test $? 1 "Prefsrc removed when src address removed on other device"
echo " VRF with two devices using src address"
$IP addr del dev dummy4 2001:db8:101::11/64
$IP -6 route show vrf red | grep -q "src 2001:db8:101::11 "
log_test $? 0 "Prefsrc not removed when src address exist on other device"
$IP addr del dev dummy5 2001:db8:101::11/64
$IP -6 route show vrf red | grep -q "src 2001:db8:101::11 "
log_test $? 1 "Prefsrc removed when src address removed on all devices"
echo " src address and nexthop dev in same VRF"
$IP addr del dev dummy4 2001:db8:101::12/64
$IP -6 route show vrf red | grep -q "src 2001:db8:101::12 "
log_test $? 1 "Prefsrc removed from VRF when source address deleted"
$IP -6 route show | grep -q " src 2001:db8:101::12 "
log_test $? 0 "Prefsrc in default VRF not removed"
$IP addr add dev dummy4 2001:db8:101::12/64
$IP route replace vrf red 2001:db8:112::/64 dev dummy6 src 2001:db8:101::12
$IP addr del dev dummy1 2001:db8:101::12/64
$IP -6 route show vrf red | grep -q "src 2001:db8:101::12 "
log_test $? 0 "Prefsrc not removed from VRF when source address exist"
$IP -6 route show | grep -q " src 2001:db8:101::12 "
log_test $? 1 "Prefsrc in default VRF removed"
echo " src address and nexthop device in different VRF"
$IP addr del dev dummy4 2001:db8:101::13/64
$IP -6 route show vrf red | grep -q "src 2001:db8:101::13 "
log_test $? 0 "Prefsrc not removed from VRF when nexthop dev in diff VRF"
$IP -6 route show | grep -q "src 2001:db8:101::13 "
log_test $? 0 "Prefsrc not removed in default VRF"
$IP addr add dev dummy4 2001:db8:101::13/64
$IP addr del dev dummy1 2001:db8:101::13/64
$IP -6 route show vrf red | grep -q "src 2001:db8:101::13 "
log_test $? 1 "Prefsrc removed from VRF when nexthop dev in diff VRF"
$IP -6 route show | grep -q "src 2001:db8:101::13 "
log_test $? 1 "Prefsrc removed in default VRF"
echo " Table ID 0"
$IP addr del dev dummy1 2001:db8:101::15/64
$IP -6 route show | grep -q "src 2001:db8:101::15"
log_test $? 1 "Prefsrc removed from default VRF when source address deleted"
echo " Link local source route"
$IP addr del dev dummy1 fe80::1/128
$IP -6 route show | grep -q "2001:db8:116::/64 dev dummy2 src fe80::1"
log_test $? 0 "Prefsrc not removed when delete ll addr from other dev"
$IP addr del dev dummy2 fe80::1/128
$IP -6 route show | grep -q "2001:db8:116::/64 dev dummy2 src fe80::1"
log_test $? 1 "Prefsrc removed when delete ll addr"
$IP -6 route show | grep -q "2001:db8:117::/64 dev dummy3 src fe80::1"
log_test $? 0 "Prefsrc not removed when delete ll addr from other dev"
$IP addr add dev dummy1 fe80::1/128
$IP addr del dev dummy3 fe80::1/128
$IP -6 route show | grep -q "2001:db8:117::/64 dev dummy3 src fe80::1"
log_test $? 1 "Prefsrc removed even ll addr still exist on other dev"
for i in $(seq 6); do
$IP li del dummy${i}
done
cleanup
}
ipv4_route_v6_gw_test()
{
local rc
echo
echo "IPv4 route with IPv6 gateway tests"
route_setup
sleep 2
#
# single path route
#
run_cmd "$IP ro add 172.16.104.0/24 via inet6 2001:db8:101::2"
rc=$?
log_test $rc 0 "Single path route with IPv6 gateway"
if [ $rc -eq 0 ]; then
check_route "172.16.104.0/24 via inet6 2001:db8:101::2 dev veth1"
fi
run_cmd "ip netns exec $ns1 ping -w1 -c1 172.16.104.1"
log_test $rc 0 "Single path route with IPv6 gateway - ping"
run_cmd "$IP ro del 172.16.104.0/24 via inet6 2001:db8:101::2"
rc=$?
log_test $rc 0 "Single path route delete"
if [ $rc -eq 0 ]; then
check_route "172.16.112.0/24"
fi
#
# multipath - v6 then v4
#
run_cmd "$IP ro add 172.16.104.0/24 nexthop via inet6 2001:db8:101::2 dev veth1 nexthop via 172.16.103.2 dev veth3"
rc=$?
log_test $rc 0 "Multipath route add - v6 nexthop then v4"
if [ $rc -eq 0 ]; then
check_route "172.16.104.0/24 nexthop via inet6 2001:db8:101::2 dev veth1 weight 1 nexthop via 172.16.103.2 dev veth3 weight 1"
fi
run_cmd "$IP ro del 172.16.104.0/24 nexthop via 172.16.103.2 dev veth3 nexthop via inet6 2001:db8:101::2 dev veth1"
log_test $? 2 " Multipath route delete - nexthops in wrong order"
run_cmd "$IP ro del 172.16.104.0/24 nexthop via inet6 2001:db8:101::2 dev veth1 nexthop via 172.16.103.2 dev veth3"
log_test $? 0 " Multipath route delete exact match"
#
# multipath - v4 then v6
#
run_cmd "$IP ro add 172.16.104.0/24 nexthop via 172.16.103.2 dev veth3 nexthop via inet6 2001:db8:101::2 dev veth1"
rc=$?
log_test $rc 0 "Multipath route add - v4 nexthop then v6"
if [ $rc -eq 0 ]; then
check_route "172.16.104.0/24 nexthop via 172.16.103.2 dev veth3 weight 1 nexthop via inet6 2001:db8:101::2 dev veth1 weight 1"
fi
run_cmd "$IP ro del 172.16.104.0/24 nexthop via inet6 2001:db8:101::2 dev veth1 nexthop via 172.16.103.2 dev veth3"
log_test $? 2 " Multipath route delete - nexthops in wrong order"
run_cmd "$IP ro del 172.16.104.0/24 nexthop via 172.16.103.2 dev veth3 nexthop via inet6 2001:db8:101::2 dev veth1"
log_test $? 0 " Multipath route delete exact match"
route_cleanup
}
socat_check()
{
if [ ! -x "$(command -v socat)" ]; then
echo "socat command not found. Skipping test"
return 1
fi
return 0
}
iptables_check()
{
iptables -t mangle -L OUTPUT &> /dev/null
if [ $? -ne 0 ]; then
echo "iptables configuration not supported. Skipping test"
return 1
fi
return 0
}
ip6tables_check()
{
ip6tables -t mangle -L OUTPUT &> /dev/null
if [ $? -ne 0 ]; then
echo "ip6tables configuration not supported. Skipping test"
return 1
fi
return 0
}
ipv4_mangle_test()
{
local rc
echo
echo "IPv4 mangling tests"
socat_check || return 1
iptables_check || return 1
route_setup
sleep 2
local tmp_file=$(mktemp)
ip netns exec $ns2 socat UDP4-LISTEN:54321,fork $tmp_file &
# Add a FIB rule and a route that will direct our connection to the
# listening server.
$IP rule add pref 100 ipproto udp sport 12345 dport 54321 table 123
$IP route add table 123 172.16.101.0/24 dev veth1
# Add an unreachable route to the main table that will block our
# connection in case the FIB rule is not hit.
$IP route add unreachable 172.16.101.2/32
run_cmd "echo a | $NS_EXEC socat STDIN UDP4:172.16.101.2:54321,sourceport=12345"
log_test $? 0 " Connection with correct parameters"
run_cmd "echo a | $NS_EXEC socat STDIN UDP4:172.16.101.2:54321,sourceport=11111"
log_test $? 1 " Connection with incorrect parameters"
# Add a mangling rule and make sure connection is still successful.
$NS_EXEC iptables -t mangle -A OUTPUT -j MARK --set-mark 1
run_cmd "echo a | $NS_EXEC socat STDIN UDP4:172.16.101.2:54321,sourceport=12345"
log_test $? 0 " Connection with correct parameters - mangling"
# Delete the mangling rule and make sure connection is still
# successful.
$NS_EXEC iptables -t mangle -D OUTPUT -j MARK --set-mark 1
run_cmd "echo a | $NS_EXEC socat STDIN UDP4:172.16.101.2:54321,sourceport=12345"
log_test $? 0 " Connection with correct parameters - no mangling"
# Verify connections were indeed successful on server side.
[[ $(cat $tmp_file | wc -l) -eq 3 ]]
log_test $? 0 " Connection check - server side"
$IP route del unreachable 172.16.101.2/32
$IP route del table 123 172.16.101.0/24 dev veth1
$IP rule del pref 100
{ kill %% && wait %%; } 2>/dev/null
rm $tmp_file
route_cleanup
}
ipv6_mangle_test()
{
local rc
echo
echo "IPv6 mangling tests"
socat_check || return 1
ip6tables_check || return 1
route_setup
sleep 2
local tmp_file=$(mktemp)
ip netns exec $ns2 socat UDP6-LISTEN:54321,fork $tmp_file &
# Add a FIB rule and a route that will direct our connection to the
# listening server.
$IP -6 rule add pref 100 ipproto udp sport 12345 dport 54321 table 123
$IP -6 route add table 123 2001:db8:101::/64 dev veth1
# Add an unreachable route to the main table that will block our
# connection in case the FIB rule is not hit.
$IP -6 route add unreachable 2001:db8:101::2/128
run_cmd "echo a | $NS_EXEC socat STDIN UDP6:[2001:db8:101::2]:54321,sourceport=12345"
log_test $? 0 " Connection with correct parameters"
run_cmd "echo a | $NS_EXEC socat STDIN UDP6:[2001:db8:101::2]:54321,sourceport=11111"
log_test $? 1 " Connection with incorrect parameters"
# Add a mangling rule and make sure connection is still successful.
$NS_EXEC ip6tables -t mangle -A OUTPUT -j MARK --set-mark 1
run_cmd "echo a | $NS_EXEC socat STDIN UDP6:[2001:db8:101::2]:54321,sourceport=12345"
log_test $? 0 " Connection with correct parameters - mangling"
# Delete the mangling rule and make sure connection is still
# successful.
$NS_EXEC ip6tables -t mangle -D OUTPUT -j MARK --set-mark 1
run_cmd "echo a | $NS_EXEC socat STDIN UDP6:[2001:db8:101::2]:54321,sourceport=12345"
log_test $? 0 " Connection with correct parameters - no mangling"
# Verify connections were indeed successful on server side.
[[ $(cat $tmp_file | wc -l) -eq 3 ]]
log_test $? 0 " Connection check - server side"
$IP -6 route del unreachable 2001:db8:101::2/128
$IP -6 route del table 123 2001:db8:101::/64 dev veth1
$IP -6 rule del pref 100
{ kill %% && wait %%; } 2>/dev/null
rm $tmp_file
route_cleanup
}
ip_neigh_get_check()
{
ip neigh help 2>&1 | grep -q 'ip neigh get'
if [ $? -ne 0 ]; then
echo "iproute2 command does not support neigh get. Skipping test"
return 1
fi
return 0
}
ipv4_bcast_neigh_test()
{
local rc
echo
echo "IPv4 broadcast neighbour tests"
ip_neigh_get_check || return 1
setup
set -e
run_cmd "$IP neigh add 192.0.2.111 lladdr 00:11:22:33:44:55 nud perm dev dummy0"
run_cmd "$IP neigh add 192.0.2.255 lladdr 00:11:22:33:44:55 nud perm dev dummy0"
run_cmd "$IP neigh get 192.0.2.111 dev dummy0"
run_cmd "$IP neigh get 192.0.2.255 dev dummy0"
run_cmd "$IP address add 192.0.2.1/24 broadcast 192.0.2.111 dev dummy0"
run_cmd "$IP neigh add 203.0.113.111 nud failed dev dummy0"
run_cmd "$IP neigh add 203.0.113.255 nud failed dev dummy0"
run_cmd "$IP neigh get 203.0.113.111 dev dummy0"
run_cmd "$IP neigh get 203.0.113.255 dev dummy0"
run_cmd "$IP address add 203.0.113.1/24 broadcast 203.0.113.111 dev dummy0"
set +e
run_cmd "$IP neigh get 192.0.2.111 dev dummy0"
log_test $? 0 "Resolved neighbour for broadcast address"
run_cmd "$IP neigh get 192.0.2.255 dev dummy0"
log_test $? 0 "Resolved neighbour for network broadcast address"
run_cmd "$IP neigh get 203.0.113.111 dev dummy0"
log_test $? 2 "Unresolved neighbour for broadcast address"
run_cmd "$IP neigh get 203.0.113.255 dev dummy0"
log_test $? 2 "Unresolved neighbour for network broadcast address"
cleanup
}
mpath_dep_check()
{
if [ ! -x "$(command -v mausezahn)" ]; then
echo "mausezahn command not found. Skipping test"
return 1
fi
if [ ! -x "$(command -v jq)" ]; then
echo "jq command not found. Skipping test"
return 1
fi
if [ ! -x "$(command -v bc)" ]; then
echo "bc command not found. Skipping test"
return 1
fi
if [ ! -x "$(command -v perf)" ]; then
echo "perf command not found. Skipping test"
return 1
fi
perf list fib:* | grep -q fib_table_lookup
if [ $? -ne 0 ]; then
echo "IPv4 FIB tracepoint not found. Skipping test"
return 1
fi
perf list fib6:* | grep -q fib6_table_lookup
if [ $? -ne 0 ]; then
echo "IPv6 FIB tracepoint not found. Skipping test"
return 1
fi
return 0
}
link_stats_get()
{
local ns=$1; shift
local dev=$1; shift
local dir=$1; shift
local stat=$1; shift
ip -n $ns -j -s link show dev $dev \
| jq '.[]["stats64"]["'$dir'"]["'$stat'"]'
}
list_rcv_eval()
{
local file=$1; shift
local expected=$1; shift
local count=$(tail -n 1 $file | jq '.["counter-value"] | tonumber | floor')
local ratio=$(echo "scale=2; $count / $expected" | bc -l)
local res=$(echo "$ratio >= 0.95" | bc)
[[ $res -eq 1 ]]
log_test $? 0 "Multipath route hit ratio ($ratio)"
}
ipv4_mpath_list_test()
{
echo
echo "IPv4 multipath list receive tests"
mpath_dep_check || return 1
route_setup
set -e
run_cmd "ip netns exec $ns1 ethtool -K veth1 tcp-segmentation-offload off"
run_cmd "ip netns exec $ns2 bash -c \"echo 20000 > /sys/class/net/veth2/gro_flush_timeout\""
run_cmd "ip netns exec $ns2 bash -c \"echo 1 > /sys/class/net/veth2/napi_defer_hard_irqs\""
run_cmd "ip netns exec $ns2 ethtool -K veth2 generic-receive-offload on"
run_cmd "ip -n $ns2 link add name nh1 up type dummy"
run_cmd "ip -n $ns2 link add name nh2 up type dummy"
run_cmd "ip -n $ns2 address add 172.16.201.1/24 dev nh1"
run_cmd "ip -n $ns2 address add 172.16.202.1/24 dev nh2"
run_cmd "ip -n $ns2 neigh add 172.16.201.2 lladdr 00:11:22:33:44:55 nud perm dev nh1"
run_cmd "ip -n $ns2 neigh add 172.16.202.2 lladdr 00:aa:bb:cc:dd:ee nud perm dev nh2"
run_cmd "ip -n $ns2 route add 203.0.113.0/24
nexthop via 172.16.201.2 nexthop via 172.16.202.2"
run_cmd "ip netns exec $ns2 sysctl -qw net.ipv4.fib_multipath_hash_policy=1"
run_cmd "ip netns exec $ns2 sysctl -qw net.ipv4.conf.veth2.rp_filter=0"
run_cmd "ip netns exec $ns2 sysctl -qw net.ipv4.conf.all.rp_filter=0"
run_cmd "ip netns exec $ns2 sysctl -qw net.ipv4.conf.default.rp_filter=0"
set +e
local dmac=$(ip -n $ns2 -j link show dev veth2 | jq -r '.[]["address"]')
local tmp_file=$(mktemp)
local cmd="ip netns exec $ns1 mausezahn veth1 -a own -b $dmac
-A 172.16.101.1 -B 203.0.113.1 -t udp 'sp=12345,dp=0-65535' -q"
# Packets forwarded in a list using a multipath route must not reuse a
# cached result so that a flow always hits the same nexthop. In other
# words, the FIB lookup tracepoint needs to be triggered for every
# packet.
local t0_rx_pkts=$(link_stats_get $ns2 veth2 rx packets)
run_cmd "perf stat -a -e fib:fib_table_lookup --filter 'err == 0' -j -o $tmp_file -- $cmd"
local t1_rx_pkts=$(link_stats_get $ns2 veth2 rx packets)
local diff=$(echo $t1_rx_pkts - $t0_rx_pkts | bc -l)
list_rcv_eval $tmp_file $diff
rm $tmp_file
route_cleanup
}
ipv6_mpath_list_test()
{
echo
echo "IPv6 multipath list receive tests"
mpath_dep_check || return 1
route_setup
set -e
run_cmd "ip netns exec $ns1 ethtool -K veth1 tcp-segmentation-offload off"
run_cmd "ip netns exec $ns2 bash -c \"echo 20000 > /sys/class/net/veth2/gro_flush_timeout\""
run_cmd "ip netns exec $ns2 bash -c \"echo 1 > /sys/class/net/veth2/napi_defer_hard_irqs\""
run_cmd "ip netns exec $ns2 ethtool -K veth2 generic-receive-offload on"
run_cmd "ip -n $ns2 link add name nh1 up type dummy"
run_cmd "ip -n $ns2 link add name nh2 up type dummy"
run_cmd "ip -n $ns2 -6 address add 2001:db8:201::1/64 dev nh1"
run_cmd "ip -n $ns2 -6 address add 2001:db8:202::1/64 dev nh2"
run_cmd "ip -n $ns2 -6 neigh add 2001:db8:201::2 lladdr 00:11:22:33:44:55 nud perm dev nh1"
run_cmd "ip -n $ns2 -6 neigh add 2001:db8:202::2 lladdr 00:aa:bb:cc:dd:ee nud perm dev nh2"
run_cmd "ip -n $ns2 -6 route add 2001:db8:301::/64
nexthop via 2001:db8:201::2 nexthop via 2001:db8:202::2"
run_cmd "ip netns exec $ns2 sysctl -qw net.ipv6.fib_multipath_hash_policy=1"
set +e
local dmac=$(ip -n $ns2 -j link show dev veth2 | jq -r '.[]["address"]')
local tmp_file=$(mktemp)
local cmd="ip netns exec $ns1 mausezahn -6 veth1 -a own -b $dmac
-A 2001:db8:101::1 -B 2001:db8:301::1 -t udp 'sp=12345,dp=0-65535' -q"
# Packets forwarded in a list using a multipath route must not reuse a
# cached result so that a flow always hits the same nexthop. In other
# words, the FIB lookup tracepoint needs to be triggered for every
# packet.
local t0_rx_pkts=$(link_stats_get $ns2 veth2 rx packets)
run_cmd "perf stat -a -e fib6:fib6_table_lookup --filter 'err == 0' -j -o $tmp_file -- $cmd"
local t1_rx_pkts=$(link_stats_get $ns2 veth2 rx packets)
local diff=$(echo $t1_rx_pkts - $t0_rx_pkts | bc -l)
list_rcv_eval $tmp_file $diff
rm $tmp_file
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
trap cleanup EXIT
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 $ksft_skip;
fi
if [ ! -x "$(command -v ip)" ]; then
echo "SKIP: Could not run test without ip tool"
exit $ksft_skip
fi
ip route help 2>&1 | grep -q fibmatch
if [ $? -ne 0 ]; then
echo "SKIP: iproute2 too old, missing fibmatch"
exit $ksft_skip
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_rp_filter_test|rp_filter) fib_rp_filter_test;;
fib_nexthop_test|nexthop) fib_nexthop_test;;
fib_notify_test|ipv4_notify) fib_notify_test;;
fib6_notify_test|ipv6_notify) fib6_notify_test;;
fib_suppress_test|suppress) fib_suppress_test;;
ipv6_route_test|ipv6_rt) ipv6_route_test;;
ipv4_route_test|ipv4_rt) ipv4_route_test;;
ipv6_addr_metric) ipv6_addr_metric_test;;
ipv4_addr_metric) ipv4_addr_metric_test;;
ipv4_del_addr) ipv4_del_addr_test;;
ipv6_del_addr) ipv6_del_addr_test;;
ipv6_route_metrics) ipv6_route_metrics_test;;
ipv4_route_metrics) ipv4_route_metrics_test;;
ipv4_route_v6_gw) ipv4_route_v6_gw_test;;
ipv4_mangle) ipv4_mangle_test;;
ipv6_mangle) ipv6_mangle_test;;
ipv4_bcast_neigh) ipv4_bcast_neigh_test;;
fib6_gc_test|ipv6_gc) fib6_gc_test;;
ipv4_mpath_list) ipv4_mpath_list_test;;
ipv6_mpath_list) ipv6_mpath_list_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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