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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
PAUSE_ON_FAIL=${PAUSE_ON_FAIL:=no}
log_test()
{
local rc=$1
local expected=$2
local msg="$3"
if [ ${rc} -eq ${expected} ]; then
printf " %-60s [ OK ]\n" "${msg}"
else
ret=1
printf " %-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
}
netns_create()
{
local testns=$1
ip netns add $testns
ip netns exec $testns ip link set dev lo up
}
fib_unreg_unicast_test()
{
echo
echo "Single path route test"
set -e
netns_create "testns"
ip -netns testns link add dummy0 type dummy
ip -netns testns link set dev dummy0 up
ip -netns testns address add 198.51.100.1/24 dev dummy0
ip -netns testns -6 address add 2001:db8:1::1/64 dev dummy0
set +e
echo " Start point"
ip -netns testns route get fibmatch 198.51.100.2 &> /dev/null
log_test $? 0 "IPv4 fibmatch"
ip -netns testns -6 route get fibmatch 2001:db8:1::2 &> /dev/null
log_test $? 0 "IPv6 fibmatch"
set -e
ip -netns testns link del dev dummy0
set +e
echo " Nexthop device deleted"
ip -netns testns route get fibmatch 198.51.100.2 &> /dev/null
log_test $? 2 "IPv4 fibmatch - no route"
ip -netns testns -6 route get fibmatch 2001:db8:1::2 &> /dev/null
log_test $? 2 "IPv6 fibmatch - no route"
ip netns del testns
}
fib_unreg_multipath_test()
{
echo
echo "Multipath route test"
set -e
netns_create "testns"
ip -netns testns link add dummy0 type dummy
ip -netns testns link set dev dummy0 up
ip -netns testns link add dummy1 type dummy
ip -netns testns link set dev dummy1 up
ip -netns testns address add 198.51.100.1/24 dev dummy0
ip -netns testns -6 address add 2001:db8:1::1/64 dev dummy0
ip -netns testns address add 192.0.2.1/24 dev dummy1
ip -netns testns -6 address add 2001:db8:2::1/64 dev dummy1
ip -netns testns route add 203.0.113.0/24 \
nexthop via 198.51.100.2 dev dummy0 \
nexthop via 192.0.2.2 dev dummy1
ip -netns testns -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 -netns testns route get fibmatch 203.0.113.1 &> /dev/null
log_test $? 0 "IPv4 fibmatch"
ip -netns testns -6 route get fibmatch 2001:db8:3::1 &> /dev/null
log_test $? 0 "IPv6 fibmatch"
set -e
ip -netns testns link del dev dummy0
set +e
echo " One nexthop device deleted"
ip -netns testns route get fibmatch 203.0.113.1 &> /dev/null
log_test $? 2 "IPv4 - multipath route removed on delete"
ip -netns testns -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 -netns testns link del dev dummy1
set +e
echo " Second nexthop device deleted"
ip -netns testns -6 route get fibmatch 2001:db8:3::1 &> /dev/null
log_test $? 2 "IPv6 - no route"
ip netns del testns
}
fib_unreg_test()
{
fib_unreg_unicast_test
fib_unreg_multipath_test
}
fib_down_unicast_test()
{
echo
echo "Single path, admin down"
set -e
netns_create "testns"
ip -netns testns link add dummy0 type dummy
ip -netns testns link set dev dummy0 up
ip -netns testns address add 198.51.100.1/24 dev dummy0
ip -netns testns -6 address add 2001:db8:1::1/64 dev dummy0
set +e
echo " Start point"
ip -netns testns route get fibmatch 198.51.100.2 &> /dev/null
log_test $? 0 "IPv4 fibmatch"
ip -netns testns -6 route get fibmatch 2001:db8:1::2 &> /dev/null
log_test $? 0 "IPv6 fibmatch"
set -e
ip -netns testns link set dev dummy0 down
set +e
echo " Route deleted on down"
ip -netns testns route get fibmatch 198.51.100.2 &> /dev/null
log_test $? 2 "IPv4 fibmatch"
ip -netns testns -6 route get fibmatch 2001:db8:1::2 &> /dev/null
log_test $? 2 "IPv6 fibmatch"
ip -netns testns link del dev dummy0
ip netns del testns
}
fib_down_multipath_test_do()
{
local down_dev=$1
local up_dev=$2
ip -netns testns route get fibmatch 203.0.113.1 \
oif $down_dev &> /dev/null
log_test $? 2 "IPv4 fibmatch on down device"
ip -netns testns -6 route get fibmatch 2001:db8:3::1 \
oif $down_dev &> /dev/null
log_test $? 2 "IPv6 fibmatch on down device"
ip -netns testns route get fibmatch 203.0.113.1 \
oif $up_dev &> /dev/null
log_test $? 0 "IPv4 fibmatch on up device"
ip -netns testns -6 route get fibmatch 2001:db8:3::1 \
oif $up_dev &> /dev/null
log_test $? 0 "IPv6 fibmatch on up device"
ip -netns testns route get fibmatch 203.0.113.1 | \
grep $down_dev | grep -q "dead linkdown"
log_test $? 0 "IPv4 flags on down device"
ip -netns testns -6 route get fibmatch 2001:db8:3::1 | \
grep $down_dev | grep -q "dead linkdown"
log_test $? 0 "IPv6 flags on down device"
ip -netns testns route get fibmatch 203.0.113.1 | \
grep $up_dev | grep -q "dead linkdown"
log_test $? 1 "IPv4 flags on up device"
ip -netns testns -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"
set -e
netns_create "testns"
ip -netns testns link add dummy0 type dummy
ip -netns testns link set dev dummy0 up
ip -netns testns link add dummy1 type dummy
ip -netns testns link set dev dummy1 up
ip -netns testns address add 198.51.100.1/24 dev dummy0
ip -netns testns -6 address add 2001:db8:1::1/64 dev dummy0
ip -netns testns address add 192.0.2.1/24 dev dummy1
ip -netns testns -6 address add 2001:db8:2::1/64 dev dummy1
ip -netns testns route add 203.0.113.0/24 \
nexthop via 198.51.100.2 dev dummy0 \
nexthop via 192.0.2.2 dev dummy1
ip -netns testns -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 -netns testns route get fibmatch 203.0.113.1 &> /dev/null
log_test $? 0 "IPv4 fibmatch"
ip -netns testns -6 route get fibmatch 2001:db8:3::1 &> /dev/null
log_test $? 0 "IPv6 fibmatch"
set -e
ip -netns testns link set dev dummy0 down
set +e
echo " One device down, one up"
fib_down_multipath_test_do "dummy0" "dummy1"
set -e
ip -netns testns link set dev dummy0 up
ip -netns testns link set dev dummy1 down
set +e
echo " Other device down and up"
fib_down_multipath_test_do "dummy1" "dummy0"
set -e
ip -netns testns link set dev dummy0 down
set +e
echo " Both devices down"
ip -netns testns route get fibmatch 203.0.113.1 &> /dev/null
log_test $? 2 "IPv4 fibmatch"
ip -netns testns -6 route get fibmatch 2001:db8:3::1 &> /dev/null
log_test $? 2 "IPv6 fibmatch"
ip -netns testns link del dev dummy1
ip -netns testns link del dev dummy0
ip netns del testns
}
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"
set -e
netns_create "testns"
ip -netns testns link add dummy0 type dummy
ip -netns testns link set dev dummy0 up
ip -netns testns link set dev dummy0 carrier on
ip -netns testns address add 198.51.100.1/24 dev dummy0
ip -netns testns -6 address add 2001:db8:1::1/64 dev dummy0
set +e
echo " Start point"
ip -netns testns route get fibmatch 198.51.100.1 &> /dev/null
log_test $? 0 "IPv4 fibmatch"
ip -netns testns -6 route get fibmatch 2001:db8:1::1 &> /dev/null
log_test $? 0 "IPv6 fibmatch"
ip -netns testns route get fibmatch 198.51.100.1 | \
grep -q "linkdown"
log_test $? 1 "IPv4 - no linkdown flag"
ip -netns testns -6 route get fibmatch 2001:db8:1::1 | \
grep -q "linkdown"
log_test $? 1 "IPv6 - no linkdown flag"
set -e
ip -netns testns link set dev dummy0 carrier off
set +e
echo " Carrier off on nexthop"
ip -netns testns route get fibmatch 198.51.100.1 &> /dev/null
log_test $? 0 "IPv4 fibmatch"
ip -netns testns -6 route get fibmatch 2001:db8:1::1 &> /dev/null
log_test $? 0 "IPv6 fibmatch"
ip -netns testns route get fibmatch 198.51.100.1 | \
grep -q "linkdown"
log_test $? 1 "IPv4 - linkdown flag set"
ip -netns testns -6 route get fibmatch 2001:db8:1::1 | \
grep -q "linkdown"
log_test $? 1 "IPv6 - linkdown flag set"
set -e
ip -netns testns address add 192.0.2.1/24 dev dummy0
ip -netns testns -6 address add 2001:db8:2::1/64 dev dummy0
set +e
echo " Route to local address with carrier down"
ip -netns testns route get fibmatch 192.0.2.1 &> /dev/null
log_test $? 0 "IPv4 fibmatch"
ip -netns testns -6 route get fibmatch 2001:db8:2::1 &> /dev/null
log_test $? 0 "IPv6 fibmatch"
ip -netns testns route get fibmatch 192.0.2.1 | \
grep -q "linkdown"
log_test $? 1 "IPv4 linkdown flag set"
ip -netns testns -6 route get fibmatch 2001:db8:2::1 | \
grep -q "linkdown"
log_test $? 1 "IPv6 linkdown flag set"
ip -netns testns link del dev dummy0
ip netns del testns
}
fib_carrier_unicast_test()
{
ret=0
echo
echo "Single path route carrier test"
netns_create "testns"
set -e
ip -netns testns link add dummy0 type dummy
ip -netns testns link set dev dummy0 up
ip -netns testns link set dev dummy0 carrier on
ip -netns testns address add 198.51.100.1/24 dev dummy0
ip -netns testns -6 address add 2001:db8:1::1/64 dev dummy0
set +e
echo " Start point"
ip -netns testns route get fibmatch 198.51.100.2 &> /dev/null
log_test $? 0 "IPv4 fibmatch"
ip -netns testns -6 route get fibmatch 2001:db8:1::2 &> /dev/null
log_test $? 0 "IPv6 fibmatch"
ip -netns testns route get fibmatch 198.51.100.2 | \
grep -q "linkdown"
log_test $? 1 "IPv4 no linkdown flag"
ip -netns testns -6 route get fibmatch 2001:db8:1::2 | \
grep -q "linkdown"
log_test $? 1 "IPv6 no linkdown flag"
set -e
ip -netns testns link set dev dummy0 carrier off
set +e
echo " Carrier down"
ip -netns testns route get fibmatch 198.51.100.2 &> /dev/null
log_test $? 0 "IPv4 fibmatch"
ip -netns testns -6 route get fibmatch 2001:db8:1::2 &> /dev/null
log_test $? 0 "IPv6 fibmatch"
ip -netns testns route get fibmatch 198.51.100.2 | \
grep -q "linkdown"
log_test $? 0 "IPv4 linkdown flag set"
ip -netns testns -6 route get fibmatch 2001:db8:1::2 | \
grep -q "linkdown"
log_test $? 0 "IPv6 linkdown flag set"
set -e
ip -netns testns address add 192.0.2.1/24 dev dummy0
ip -netns testns -6 address add 2001:db8:2::1/64 dev dummy0
set +e
echo " Second address added with carrier down"
ip -netns testns route get fibmatch 192.0.2.2 &> /dev/null
log_test $? 0 "IPv4 fibmatch"
ip -netns testns -6 route get fibmatch 2001:db8:2::2 &> /dev/null
log_test $? 0 "IPv6 fibmatch"
ip -netns testns route get fibmatch 192.0.2.2 | \
grep -q "linkdown"
log_test $? 0 "IPv4 linkdown flag set"
ip -netns testns -6 route get fibmatch 2001:db8:2::2 | \
grep -q "linkdown"
log_test $? 0 "IPv6 linkdown flag set"
ip -netns testns link del dev dummy0
ip netns del testns
}
fib_carrier_test()
{
fib_carrier_local_test
fib_carrier_unicast_test
}
fib_test()
{
fib_unreg_test
fib_down_test
fib_carrier_test
}
if [ "$(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
fib_test
exit $ret
|
