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fib_tests: Add tests for metrics on routes

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Add ipv4 and ipv6 test cases for metrics (mtu) when fib entries are
created. Can be used with kmemleak to see leaks with both fib entries
and dst_entry.

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David Ahern 2018-10-04 20:07:55 -07:00 committed by David S. Miller
parent 1620a33695
commit a0e11da78f
1 changed files with 138 additions and 19 deletions
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157
tools/testing/selftests/net/fib_tests.sh
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@ -9,11 +9,11 @@ ret=0
ksft_skip=4 ksft_skip=4
# all tests in this script. Can be overridden with -t option # all tests in this script. Can be overridden with -t option
TESTS="unregister down carrier nexthop ipv6_rt ipv4_rt ipv6_addr_metric ipv4_addr_metric" TESTS="unregister down carrier nexthop ipv6_rt ipv4_rt ipv6_addr_metric ipv4_addr_metric ipv6_route_metrics ipv4_route_metrics"
VERBOSE=0 VERBOSE=0
PAUSE_ON_FAIL=no PAUSE_ON_FAIL=no
PAUSE=no PAUSE=no
IP="ip -netns testns" IP="ip -netns ns1"
log_test() log_test()
{ {
@ -47,8 +47,10 @@ log_test()
setup() setup()
{ {
set -e set -e
ip netns add testns ip netns add ns1
$IP link set dev lo up $IP link set dev lo up
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 add dummy0 type dummy
$IP link set dev dummy0 up $IP link set dev dummy0 up
@ -61,7 +63,8 @@ setup()
cleanup() cleanup()
{ {
$IP link del dev dummy0 &> /dev/null $IP link del dev dummy0 &> /dev/null
ip netns del testns ip netns del ns1
ip netns del ns2 &> /dev/null
} }
get_linklocal() get_linklocal()
@ -639,11 +642,14 @@ add_initial_route6()
check_route6() check_route6()
{ {
local pfx="2001:db8:104::/64" local pfx
local expected="$1" local expected="$1"
local out local out
local rc=0 local rc=0
set -- $expected
pfx=$1
out=$($IP -6 ro ls match ${pfx} | sed -e 's/ pref medium//') out=$($IP -6 ro ls match ${pfx} | sed -e 's/ pref medium//')
[ "${out}" = "${expected}" ] && return 0 [ "${out}" = "${expected}" ] && return 0
@ -690,28 +696,33 @@ route_setup()
[ "${VERBOSE}" = "1" ] && set -x [ "${VERBOSE}" = "1" ] && set -x
set -e set -e
$IP li add red up type vrf table 101 ip netns add ns2
ip -netns ns2 link set dev lo up
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 veth1 type veth peer name veth2
$IP li add veth3 type veth peer name veth4 $IP li add veth3 type veth peer name veth4
$IP li set veth1 up $IP li set veth1 up
$IP li set veth3 up $IP li set veth3 up
$IP li set veth2 vrf red up $IP li set veth2 netns ns2 up
$IP li set veth4 vrf red up $IP li set veth4 netns ns2 up
$IP li add dummy1 type dummy ip -netns ns2 li add dummy1 type dummy
$IP li set dummy1 vrf red up ip -netns ns2 li set dummy1 up
$IP -6 addr add 2001:db8:101::1/64 dev veth1 $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::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 172.16.101.1/24 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 172.16.103.1/24 dev veth3
$IP addr add 172.16.103.2/24 dev veth4
$IP addr add 172.16.104.1/24 dev dummy1 ip -netns ns2 -6 addr add 2001:db8:101::2/64 dev veth2
ip -netns ns2 -6 addr add 2001:db8:103::2/64 dev veth4
ip -netns ns2 -6 addr add 2001:db8:104::1/64 dev dummy1
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 +ex set +ex
} }
@ -944,7 +955,7 @@ ipv6_addr_metric_test()
log_test $rc 0 "Modify metric of address" log_test $rc 0 "Modify metric of address"
# verify prefix route removed on down # verify prefix route removed on down
run_cmd "ip netns exec testns sysctl -qw net.ipv6.conf.all.keep_addr_on_down=1" run_cmd "ip netns exec ns1 sysctl -qw net.ipv6.conf.all.keep_addr_on_down=1"
run_cmd "$IP li set dev dummy2 down" run_cmd "$IP li set dev dummy2 down"
rc=$? rc=$?
if [ $rc -eq 0 ]; then if [ $rc -eq 0 ]; then
@ -967,6 +978,74 @@ ipv6_addr_metric_test()
cleanup cleanup
} }
ipv6_route_metrics_test()
{
local rc
echo
echo "IPv6 routes with metrics"
route_setup
#
# single path with metrics
#
run_cmd "$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"
route_cleanup
}
# add route for a prefix, flushing any existing routes first # add route for a prefix, flushing any existing routes first
# expected to be the first step of a test # expected to be the first step of a test
add_route() add_route()
@ -1005,11 +1084,15 @@ add_initial_route()
check_route() check_route()
{ {
local pfx="172.16.104.0/24" local pfx
local expected="$1" local expected="$1"
local out local out
local rc=0 local rc=0
set -- $expected
pfx=$1
[ "${pfx}" = "unreachable" ] && pfx=$2
out=$($IP ro ls match ${pfx}) out=$($IP ro ls match ${pfx})
[ "${out}" = "${expected}" ] && return 0 [ "${out}" = "${expected}" ] && return 0
@ -1319,6 +1402,40 @@ ipv4_addr_metric_test()
cleanup cleanup
} }
ipv4_route_metrics_test()
{
local rc
echo
echo "IPv4 route add / append tests"
route_setup
run_cmd "$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"
route_cleanup
}
################################################################################ ################################################################################
# usage # usage
@ -1385,6 +1502,8 @@ do
ipv4_route_test|ipv4_rt) ipv4_route_test;; ipv4_route_test|ipv4_rt) ipv4_route_test;;
ipv6_addr_metric) ipv6_addr_metric_test;; ipv6_addr_metric) ipv6_addr_metric_test;;
ipv4_addr_metric) ipv4_addr_metric_test;; ipv4_addr_metric) ipv4_addr_metric_test;;
ipv6_route_metrics) ipv6_route_metrics_test;;
ipv4_route_metrics) ipv4_route_metrics_test;;
help) echo "Test names: $TESTS"; exit 0;; help) echo "Test names: $TESTS"; exit 0;;
esac esac