| Message ID | 20230718180321.294721-3-kuifeng@meta.com (mailing list archive) |
|---|---|
| State | Changes Requested |
| Delegated to: | Netdev Maintainers |
| Headers | show |
| Series | Remove expired routes with a | expand |
On Tue, 2023-07-18 at 11:03 -0700, Kui-Feng Lee wrote: > Add 10 IPv6 routes with expiration time. Wait for a few seconds > to make sure they are removed correctly. > > Signed-off-by: Kui-Feng Lee <kuifeng@meta.com> Same thing as the previous patch. > --- > tools/testing/selftests/net/fib_tests.sh | 49 +++++++++++++++++++++++- > 1 file changed, 48 insertions(+), 1 deletion(-) > > diff --git a/tools/testing/selftests/net/fib_tests.sh b/tools/testing/selftests/net/fib_tests.sh > index 35d89dfa6f11..55bc6897513a 100755 > --- a/tools/testing/selftests/net/fib_tests.sh > +++ b/tools/testing/selftests/net/fib_tests.sh > @@ -9,7 +9,7 @@ ret=0 > ksft_skip=4 > > # 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 ipv4_mangle ipv6_mangle ipv4_bcast_neigh" > +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 ipv4_mangle ipv6_mangle ipv4_bcast_neigh fib6_gc_test" At this point is likely worthy splitting the above line in multiple ones, something alike: 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 ipv4_mangle ipv6_mangle ipv4_bcast_neigh \ fib6_gc_test" > > VERBOSE=0 > PAUSE_ON_FAIL=no > @@ -747,6 +747,52 @@ fib_notify_test() > cleanup &> /dev/null > } > > +fib6_gc_test() > +{ > + setup > + > + echo > + echo "Fib6 garbage collection test" > + set -e > + > + OLD_INTERVAL=$(sysctl -n net.ipv6.route.gc_interval) > + # Check expiration of routes every 3 seconds (GC) > + $NS_EXEC sysctl -wq net.ipv6.route.gc_interval=3 > + > + $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 > + > + for i in 0 1 2 3 4 5 6 7 8 9; do $(seq 0 9) > + # Expire route after 2 seconds > + $IP -6 route add 2001:20::1$i \ > + via 2001:10::2 dev dummy_10 expires 2 > + done > + N_EXP=$($IP -6 route list |grep expires|wc -l) > + if [ $N_EXP -ne 10 ]; then > + echo "FAIL: expected 10 routes with expires, got $N_EXP" > + ret=1 > + else > + sleep 4 > + N_EXP_s20=$($IP -6 route list |grep expires|wc -l) > + > + if [ $N_EXP_s20 -ne 0 ]; then > + echo "FAIL: expected 0 routes with expires, got $N_EXP_s20" > + ret=1 > + else > + ret=0 > + fi > + fi Possibly also worth trying with a few K of permanent routes, and dump the time required in both cases? > + > + set +e > + > + log_test $ret 0 "ipv6 route garbage collection" > + > + sysctl -wq net.ipv6.route.gc_interval=$OLD_INTERVAL No need to restore, gc_interval is a per namespace param specific >
On 7/20/23 02:32, Paolo Abeni wrote: > On Tue, 2023-07-18 at 11:03 -0700, Kui-Feng Lee wrote: >> Add 10 IPv6 routes with expiration time. Wait for a few seconds >> to make sure they are removed correctly. >> >> Signed-off-by: Kui-Feng Lee <kuifeng@meta.com> > > Same thing as the previous patch. > >> --- >> tools/testing/selftests/net/fib_tests.sh | 49 +++++++++++++++++++++++- >> 1 file changed, 48 insertions(+), 1 deletion(-) >> >> diff --git a/tools/testing/selftests/net/fib_tests.sh b/tools/testing/selftests/net/fib_tests.sh >> index 35d89dfa6f11..55bc6897513a 100755 >> --- a/tools/testing/selftests/net/fib_tests.sh >> +++ b/tools/testing/selftests/net/fib_tests.sh >> @@ -9,7 +9,7 @@ ret=0 >> ksft_skip=4 >> >> # 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 ipv4_mangle ipv6_mangle ipv4_bcast_neigh" >> +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 ipv4_mangle ipv6_mangle ipv4_bcast_neigh fib6_gc_test" > > At this point is likely worthy splitting the above line in multiple > ones, something alike: > > 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 ipv4_mangle ipv6_mangle ipv4_bcast_neigh \ > fib6_gc_test" > Ok! >> >> VERBOSE=0 >> PAUSE_ON_FAIL=no >> @@ -747,6 +747,52 @@ fib_notify_test() >> cleanup &> /dev/null >> } >> >> +fib6_gc_test() >> +{ >> + setup >> + >> + echo >> + echo "Fib6 garbage collection test" >> + set -e >> + >> + OLD_INTERVAL=$(sysctl -n net.ipv6.route.gc_interval) >> + # Check expiration of routes every 3 seconds (GC) >> + $NS_EXEC sysctl -wq net.ipv6.route.gc_interval=3 >> + >> + $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 >> + >> + for i in 0 1 2 3 4 5 6 7 8 9; do > $(seq 0 9) > >> + # Expire route after 2 seconds >> + $IP -6 route add 2001:20::1$i \ >> + via 2001:10::2 dev dummy_10 expires 2 >> + done >> + N_EXP=$($IP -6 route list |grep expires|wc -l) >> + if [ $N_EXP -ne 10 ]; then >> + echo "FAIL: expected 10 routes with expires, got $N_EXP" >> + ret=1 >> + else >> + sleep 4 >> + N_EXP_s20=$($IP -6 route list |grep expires|wc -l) >> + >> + if [ $N_EXP_s20 -ne 0 ]; then >> + echo "FAIL: expected 0 routes with expires, got $N_EXP_s20" >> + ret=1 >> + else >> + ret=0 >> + fi >> + fi > > Possibly also worth trying with a few K of permanent routes, and dump > the time required in both cases? Sure! > >> + >> + set +e >> + >> + log_test $ret 0 "ipv6 route garbage collection" >> + >> + sysctl -wq net.ipv6.route.gc_interval=$OLD_INTERVAL > > No need to restore, gc_interval is a per namespace param specific >> > >
On 7/20/23 02:32, Paolo Abeni wrote: > On Tue, 2023-07-18 at 11:03 -0700, Kui-Feng Lee wrote: >> Add 10 IPv6 routes with expiration time. Wait for a few seconds >> to make sure they are removed correctly. >> >> Signed-off-by: Kui-Feng Lee <kuifeng@meta.com> > > Same thing as the previous patch. > >> --- >> tools/testing/selftests/net/fib_tests.sh | 49 +++++++++++++++++++++++- >> 1 file changed, 48 insertions(+), 1 deletion(-) >> >> diff --git a/tools/testing/selftests/net/fib_tests.sh b/tools/testing/selftests/net/fib_tests.sh >> index 35d89dfa6f11..55bc6897513a 100755 >> --- a/tools/testing/selftests/net/fib_tests.sh >> +++ b/tools/testing/selftests/net/fib_tests.sh >> @@ -9,7 +9,7 @@ ret=0 >> ksft_skip=4 >> >> # 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 ipv4_mangle ipv6_mangle ipv4_bcast_neigh" >> +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 ipv4_mangle ipv6_mangle ipv4_bcast_neigh fib6_gc_test" > > At this point is likely worthy splitting the above line in multiple > ones, something alike: > > 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 ipv4_mangle ipv6_mangle ipv4_bcast_neigh \ > fib6_gc_test" > >> >> VERBOSE=0 >> PAUSE_ON_FAIL=no >> @@ -747,6 +747,52 @@ fib_notify_test() >> cleanup &> /dev/null >> } >> >> +fib6_gc_test() >> +{ >> + setup >> + >> + echo >> + echo "Fib6 garbage collection test" >> + set -e >> + >> + OLD_INTERVAL=$(sysctl -n net.ipv6.route.gc_interval) >> + # Check expiration of routes every 3 seconds (GC) >> + $NS_EXEC sysctl -wq net.ipv6.route.gc_interval=3 >> + >> + $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 >> + >> + for i in 0 1 2 3 4 5 6 7 8 9; do > $(seq 0 9) > >> + # Expire route after 2 seconds >> + $IP -6 route add 2001:20::1$i \ >> + via 2001:10::2 dev dummy_10 expires 2 >> + done >> + N_EXP=$($IP -6 route list |grep expires|wc -l) >> + if [ $N_EXP -ne 10 ]; then >> + echo "FAIL: expected 10 routes with expires, got $N_EXP" >> + ret=1 >> + else >> + sleep 4 >> + N_EXP_s20=$($IP -6 route list |grep expires|wc -l) >> + >> + if [ $N_EXP_s20 -ne 0 ]; then >> + echo "FAIL: expected 0 routes with expires, got $N_EXP_s20" >> + ret=1 >> + else >> + ret=0 >> + fi >> + fi > > Possibly also worth trying with a few K of permanent routes, and dump > the time required in both cases? I just realized that I don't know how to measure the time required to do GC without providing additional APIs or exposing numbers to procfs or sysfs. Do you have any idea about this? > >> + >> + set +e >> + >> + log_test $ret 0 "ipv6 route garbage collection" >> + >> + sysctl -wq net.ipv6.route.gc_interval=$OLD_INTERVAL > > No need to restore, gc_interval is a per namespace param specific >> > >
On Thu, 2023-07-20 at 14:36 -0700, Kui-Feng Lee wrote: > > On 7/20/23 02:32, Paolo Abeni wrote: > > On Tue, 2023-07-18 at 11:03 -0700, Kui-Feng Lee wrote: > > > Add 10 IPv6 routes with expiration time. Wait for a few seconds > > > to make sure they are removed correctly. > > > > > > Signed-off-by: Kui-Feng Lee <kuifeng@meta.com> > > > > Same thing as the previous patch. > > > > > --- > > > tools/testing/selftests/net/fib_tests.sh | 49 +++++++++++++++++++++++- > > > 1 file changed, 48 insertions(+), 1 deletion(-) > > > > > > diff --git a/tools/testing/selftests/net/fib_tests.sh b/tools/testing/selftests/net/fib_tests.sh > > > index 35d89dfa6f11..55bc6897513a 100755 > > > --- a/tools/testing/selftests/net/fib_tests.sh > > > +++ b/tools/testing/selftests/net/fib_tests.sh > > > @@ -9,7 +9,7 @@ ret=0 > > > ksft_skip=4 > > > > > > # 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 ipv4_mangle ipv6_mangle ipv4_bcast_neigh" > > > +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 ipv4_mangle ipv6_mangle ipv4_bcast_neigh fib6_gc_test" > > > > At this point is likely worthy splitting the above line in multiple > > ones, something alike: > > > > 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 ipv4_mangle ipv6_mangle ipv4_bcast_neigh \ > > fib6_gc_test" > > > > > > > > VERBOSE=0 > > > PAUSE_ON_FAIL=no > > > @@ -747,6 +747,52 @@ fib_notify_test() > > > cleanup &> /dev/null > > > } > > > > > > +fib6_gc_test() > > > +{ > > > + setup > > > + > > > + echo > > > + echo "Fib6 garbage collection test" > > > + set -e > > > + > > > + OLD_INTERVAL=$(sysctl -n net.ipv6.route.gc_interval) > > > + # Check expiration of routes every 3 seconds (GC) > > > + $NS_EXEC sysctl -wq net.ipv6.route.gc_interval=3 > > > + > > > + $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 > > > + > > > + for i in 0 1 2 3 4 5 6 7 8 9; do > > $(seq 0 9) > > > > > + # Expire route after 2 seconds > > > + $IP -6 route add 2001:20::1$i \ > > > + via 2001:10::2 dev dummy_10 expires 2 > > > + done > > > + N_EXP=$($IP -6 route list |grep expires|wc -l) > > > + if [ $N_EXP -ne 10 ]; then > > > + echo "FAIL: expected 10 routes with expires, got $N_EXP" > > > + ret=1 > > > + else > > > + sleep 4 > > > + N_EXP_s20=$($IP -6 route list |grep expires|wc -l) > > > + > > > + if [ $N_EXP_s20 -ne 0 ]; then > > > + echo "FAIL: expected 0 routes with expires, got $N_EXP_s20" > > > + ret=1 > > > + else > > > + ret=0 > > > + fi > > > + fi > > > > Possibly also worth trying with a few K of permanent routes, and dump > > the time required in both cases? > > I just realized that I don't know how to measure the time required to do > GC without providing additional APIs or exposing numbers to procfs or > sysfs. Do you have any idea about this? Something like this should do the trick sysctl -wq net.ipv6.route.flush=1 # add routes #... # delete expired routes synchronously sysctl -wq net.ipv6.route.flush=1 Note that the net.ipv6.route.flush handler uses the 'old' flush value. Cheers, Paolo
On 7/21/23 00:14, Paolo Abeni wrote: > On Thu, 2023-07-20 at 14:36 -0700, Kui-Feng Lee wrote: >> >> On 7/20/23 02:32, Paolo Abeni wrote: >>> On Tue, 2023-07-18 at 11:03 -0700, Kui-Feng Lee wrote: >>>> Add 10 IPv6 routes with expiration time. Wait for a few seconds >>>> to make sure they are removed correctly. >>>> >>>> Signed-off-by: Kui-Feng Lee <kuifeng@meta.com> >>> >>> Same thing as the previous patch. >>> >>>> --- >>>> tools/testing/selftests/net/fib_tests.sh | 49 +++++++++++++++++++++++- >>>> 1 file changed, 48 insertions(+), 1 deletion(-) >>>> >>>> diff --git a/tools/testing/selftests/net/fib_tests.sh b/tools/testing/selftests/net/fib_tests.sh >>>> index 35d89dfa6f11..55bc6897513a 100755 >>>> --- a/tools/testing/selftests/net/fib_tests.sh >>>> +++ b/tools/testing/selftests/net/fib_tests.sh >>>> @@ -9,7 +9,7 @@ ret=0 >>>> ksft_skip=4 >>>> >>>> # 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 ipv4_mangle ipv6_mangle ipv4_bcast_neigh" >>>> +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 ipv4_mangle ipv6_mangle ipv4_bcast_neigh fib6_gc_test" >>> >>> At this point is likely worthy splitting the above line in multiple >>> ones, something alike: >>> >>> 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 ipv4_mangle ipv6_mangle ipv4_bcast_neigh \ >>> fib6_gc_test" >>> >>>> >>>> VERBOSE=0 >>>> PAUSE_ON_FAIL=no >>>> @@ -747,6 +747,52 @@ fib_notify_test() >>>> cleanup &> /dev/null >>>> } >>>> >>>> +fib6_gc_test() >>>> +{ >>>> + setup >>>> + >>>> + echo >>>> + echo "Fib6 garbage collection test" >>>> + set -e >>>> + >>>> + OLD_INTERVAL=$(sysctl -n net.ipv6.route.gc_interval) >>>> + # Check expiration of routes every 3 seconds (GC) >>>> + $NS_EXEC sysctl -wq net.ipv6.route.gc_interval=3 >>>> + >>>> + $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 >>>> + >>>> + for i in 0 1 2 3 4 5 6 7 8 9; do >>> $(seq 0 9) >>> >>>> + # Expire route after 2 seconds >>>> + $IP -6 route add 2001:20::1$i \ >>>> + via 2001:10::2 dev dummy_10 expires 2 >>>> + done >>>> + N_EXP=$($IP -6 route list |grep expires|wc -l) >>>> + if [ $N_EXP -ne 10 ]; then >>>> + echo "FAIL: expected 10 routes with expires, got $N_EXP" >>>> + ret=1 >>>> + else >>>> + sleep 4 >>>> + N_EXP_s20=$($IP -6 route list |grep expires|wc -l) >>>> + >>>> + if [ $N_EXP_s20 -ne 0 ]; then >>>> + echo "FAIL: expected 0 routes with expires, got $N_EXP_s20" >>>> + ret=1 >>>> + else >>>> + ret=0 >>>> + fi >>>> + fi >>> >>> Possibly also worth trying with a few K of permanent routes, and dump >>> the time required in both cases? >> >> I just realized that I don't know how to measure the time required to do >> GC without providing additional APIs or exposing numbers to procfs or >> sysfs. Do you have any idea about this? > > Something like this should do the trick > > sysctl -wq net.ipv6.route.flush=1 > > # add routes > #... > > # delete expired routes synchronously > sysctl -wq net.ipv6.route.flush=1 > > Note that the net.ipv6.route.flush handler uses the 'old' flush value. May I use bpftrace to measure time spending on writing to procfs? It is in the order of microseconds. time command doesn't work. > > Cheers, > > Paolo >
On 7/21/23 12:31 PM, Kui-Feng Lee wrote: >> >> sysctl -wq net.ipv6.route.flush=1 >> >> # add routes >> #... >> >> # delete expired routes synchronously >> sysctl -wq net.ipv6.route.flush=1 >> >> Note that the net.ipv6.route.flush handler uses the 'old' flush value. > > May I use bpftrace to measure time spending on writing to procfs? > It is in the order of microseconds. time command doesn't work. > Both before this patch and after this patch are in microseconds?
On 7/21/23 13:01, David Ahern wrote: > On 7/21/23 12:31 PM, Kui-Feng Lee wrote: >>> >>> sysctl -wq net.ipv6.route.flush=1 >>> >>> # add routes >>> #... >>> >>> # delete expired routes synchronously >>> sysctl -wq net.ipv6.route.flush=1 >>> >>> Note that the net.ipv6.route.flush handler uses the 'old' flush value. >> >> May I use bpftrace to measure time spending on writing to procfs? >> It is in the order of microseconds. time command doesn't work. >> > > Both before this patch and after this patch are in microseconds? > The test case includes two parts. First part, add 1k temporary routes only. Second part, add 5k permanent routes before adding 1k temporary routes. In both cases, they wait for a few second and run sysctl -wq net.ipv6.route.flush=1 to force gc. I use bpftrace to measure the time the syscalls that write to procfs. Following are the numbers (5 times average) I got. Without the patch 1k temp w/o 5k perm: ~588us 1k temp w/ 5k perm: ~1055us With the patch 1k temp w/o 5k perm: ~550us 1k temp w/ 5k perm: ~561us
diff --git a/tools/testing/selftests/net/fib_tests.sh b/tools/testing/selftests/net/fib_tests.sh index 35d89dfa6f11..55bc6897513a 100755 --- a/tools/testing/selftests/net/fib_tests.sh +++ b/tools/testing/selftests/net/fib_tests.sh @@ -9,7 +9,7 @@ ret=0 ksft_skip=4 # 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 ipv4_mangle ipv6_mangle ipv4_bcast_neigh" +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 ipv4_mangle ipv6_mangle ipv4_bcast_neigh fib6_gc_test" VERBOSE=0 PAUSE_ON_FAIL=no @@ -747,6 +747,52 @@ fib_notify_test() cleanup &> /dev/null } +fib6_gc_test() +{ + setup + + echo + echo "Fib6 garbage collection test" + set -e + + OLD_INTERVAL=$(sysctl -n net.ipv6.route.gc_interval) + # Check expiration of routes every 3 seconds (GC) + $NS_EXEC sysctl -wq net.ipv6.route.gc_interval=3 + + $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 + + for i in 0 1 2 3 4 5 6 7 8 9; do + # Expire route after 2 seconds + $IP -6 route add 2001:20::1$i \ + via 2001:10::2 dev dummy_10 expires 2 + done + N_EXP=$($IP -6 route list |grep expires|wc -l) + if [ $N_EXP -ne 10 ]; then + echo "FAIL: expected 10 routes with expires, got $N_EXP" + ret=1 + else + sleep 4 + N_EXP_s20=$($IP -6 route list |grep expires|wc -l) + + if [ $N_EXP_s20 -ne 0 ]; then + echo "FAIL: expected 0 routes with expires, got $N_EXP_s20" + ret=1 + else + ret=0 + fi + fi + + set +e + + log_test $ret 0 "ipv6 route garbage collection" + + sysctl -wq net.ipv6.route.gc_interval=$OLD_INTERVAL + + cleanup &> /dev/null +} + fib_suppress_test() { echo @@ -2217,6 +2263,7 @@ do 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;; help) echo "Test names: $TESTS"; exit 0;; esac
Add 10 IPv6 routes with expiration time. Wait for a few seconds to make sure they are removed correctly. Signed-off-by: Kui-Feng Lee <kuifeng@meta.com> --- tools/testing/selftests/net/fib_tests.sh | 49 +++++++++++++++++++++++- 1 file changed, 48 insertions(+), 1 deletion(-)