name : fib_notifications.sh #!/bin/bash # SPDX-License-Identifier: GPL-2.0 lib_dir=$(dirname $0)/../../../net/forwarding ALL_TESTS=" ipv4_route_addition_test ipv4_route_deletion_test ipv4_route_replacement_test ipv4_route_offload_failed_test ipv6_route_addition_test ipv6_route_deletion_test ipv6_route_replacement_test ipv6_route_offload_failed_test " NETDEVSIM_PATH=/sys/bus/netdevsim/ DEV_ADDR=1337 DEV=netdevsim${DEV_ADDR} DEVLINK_DEV=netdevsim/${DEV} SYSFS_NET_DIR=/sys/bus/netdevsim/devices/$DEV/net/ DEBUGFS_DIR=/sys/kernel/debug/netdevsim/$DEV/ NUM_NETIFS=0 source $lib_dir/lib.sh check_rt_offload_failed() { local outfile=$1; shift local line # Make sure that the first notification was emitted without # RTM_F_OFFLOAD_FAILED flag and the second with RTM_F_OFFLOAD_FAILED # flag head -n 1 $outfile | grep -q "rt_offload_failed" if [[ $? -eq 0 ]]; then return 1 fi head -n 2 $outfile | tail -n 1 | grep -q "rt_offload_failed" } check_rt_trap() { local outfile=$1; shift local line # Make sure that the first notification was emitted without RTM_F_TRAP # flag and the second with RTM_F_TRAP flag head -n 1 $outfile | grep -q "rt_trap" if [[ $? -eq 0 ]]; then return 1 fi head -n 2 $outfile | tail -n 1 | grep -q "rt_trap" } route_notify_check() { local outfile=$1; shift local expected_num_lines=$1; shift local offload_failed=${1:-0}; shift # check the monitor results lines=`wc -l $outfile | cut "-d " -f1` test $lines -eq $expected_num_lines check_err $? "$expected_num_lines notifications were expected but $lines were received" if [[ $expected_num_lines -eq 1 ]]; then return fi if [[ $offload_failed -eq 0 ]]; then check_rt_trap $outfile check_err $? "Wrong RTM_F_TRAP flags in notifications" else check_rt_offload_failed $outfile check_err $? "Wrong RTM_F_OFFLOAD_FAILED flags in notifications" fi } route_addition_check() { local ip=$1; shift local notify=$1; shift local route=$1; shift local expected_num_notifications=$1; shift local offload_failed=${1:-0}; shift ip netns exec testns1 sysctl -qw net.$ip.fib_notify_on_flag_change=$notify local outfile=$(mktemp) $IP monitor route &> $outfile & sleep 1 $IP route add $route dev dummy1 sleep 1 kill %% && wait %% &> /dev/null route_notify_check $outfile $expected_num_notifications $offload_failed rm -f $outfile $IP route del $route dev dummy1 } ipv4_route_addition_test() { RET=0 local ip="ipv4" local route=192.0.2.0/24 # Make sure a single notification will be emitted for the programmed # route. local notify=0 local expected_num_notifications=1 # route_addition_check will assign value to RET. route_addition_check $ip $notify $route $expected_num_notifications # Make sure two notifications will be emitted for the programmed route. notify=1 expected_num_notifications=2 route_addition_check $ip $notify $route $expected_num_notifications # notify=2 means emit notifications only for failed route installation, # make sure a single notification will be emitted for the programmed # route. notify=2 expected_num_notifications=1 route_addition_check $ip $notify $route $expected_num_notifications log_test "IPv4 route addition" } route_deletion_check() { local ip=$1; shift local notify=$1; shift local route=$1; shift local expected_num_notifications=$1; shift ip netns exec testns1 sysctl -qw net.$ip.fib_notify_on_flag_change=$notify $IP route add $route dev dummy1 sleep 1 local outfile=$(mktemp) $IP monitor route &> $outfile & sleep 1 $IP route del $route dev dummy1 sleep 1 kill %% && wait %% &> /dev/null route_notify_check $outfile $expected_num_notifications rm -f $outfile } ipv4_route_deletion_test() { RET=0 local ip="ipv4" local route=192.0.2.0/24 local expected_num_notifications=1 # Make sure a single notification will be emitted for the deleted route, # regardless of fib_notify_on_flag_change value. local notify=0 # route_deletion_check will assign value to RET. route_deletion_check $ip $notify $route $expected_num_notifications notify=1 route_deletion_check $ip $notify $route $expected_num_notifications log_test "IPv4 route deletion" } route_replacement_check() { local ip=$1; shift local notify=$1; shift local route=$1; shift local expected_num_notifications=$1; shift ip netns exec testns1 sysctl -qw net.$ip.fib_notify_on_flag_change=$notify $IP route add $route dev dummy1 sleep 1 local outfile=$(mktemp) $IP monitor route &> $outfile & sleep 1 $IP route replace $route dev dummy2 sleep 1 kill %% && wait %% &> /dev/null route_notify_check $outfile $expected_num_notifications rm -f $outfile $IP route del $route dev dummy2 } ipv4_route_replacement_test() { RET=0 local ip="ipv4" local route=192.0.2.0/24 $IP link add name dummy2 type dummy $IP link set dev dummy2 up # Make sure a single notification will be emitted for the new route. local notify=0 local expected_num_notifications=1 # route_replacement_check will assign value to RET. route_replacement_check $ip $notify $route $expected_num_notifications # Make sure two notifications will be emitted for the new route. notify=1 expected_num_notifications=2 route_replacement_check $ip $notify $route $expected_num_notifications # notify=2 means emit notifications only for failed route installation, # make sure a single notification will be emitted for the new route. notify=2 expected_num_notifications=1 route_replacement_check $ip $notify $route $expected_num_notifications $IP link del name dummy2 log_test "IPv4 route replacement" } ipv4_route_offload_failed_test() { RET=0 local ip="ipv4" local route=192.0.2.0/24 local offload_failed=1 echo "y"> $DEBUGFS_DIR/fib/fail_route_offload check_err $? "Failed to setup route offload to fail" # Make sure a single notification will be emitted for the programmed # route. local notify=0 local expected_num_notifications=1 route_addition_check $ip $notify $route $expected_num_notifications \ $offload_failed # Make sure two notifications will be emitted for the new route. notify=1 expected_num_notifications=2 route_addition_check $ip $notify $route $expected_num_notifications \ $offload_failed # notify=2 means emit notifications only for failed route installation, # make sure two notifications will be emitted for the new route. notify=2 expected_num_notifications=2 route_addition_check $ip $notify $route $expected_num_notifications \ $offload_failed echo "n"> $DEBUGFS_DIR/fib/fail_route_offload check_err $? "Failed to setup route offload not to fail" log_test "IPv4 route offload failed" } ipv6_route_addition_test() { RET=0 local ip="ipv6" local route=2001:db8:1::/64 # Make sure a single notification will be emitted for the programmed # route. local notify=0 local expected_num_notifications=1 route_addition_check $ip $notify $route $expected_num_notifications # Make sure two notifications will be emitted for the programmed route. notify=1 expected_num_notifications=2 route_addition_check $ip $notify $route $expected_num_notifications # notify=2 means emit notifications only for failed route installation, # make sure a single notification will be emitted for the programmed # route. notify=2 expected_num_notifications=1 route_addition_check $ip $notify $route $expected_num_notifications log_test "IPv6 route addition" } ipv6_route_deletion_test() { RET=0 local ip="ipv6" local route=2001:db8:1::/64 local expected_num_notifications=1 # Make sure a single notification will be emitted for the deleted route, # regardless of fib_notify_on_flag_change value. local notify=0 route_deletion_check $ip $notify $route $expected_num_notifications notify=1 route_deletion_check $ip $notify $route $expected_num_notifications log_test "IPv6 route deletion" } ipv6_route_replacement_test() { RET=0 local ip="ipv6" local route=2001:db8:1::/64 $IP link add name dummy2 type dummy $IP link set dev dummy2 up # Make sure a single notification will be emitted for the new route. local notify=0 local expected_num_notifications=1 route_replacement_check $ip $notify $route $expected_num_notifications # Make sure two notifications will be emitted for the new route. notify=1 expected_num_notifications=2 route_replacement_check $ip $notify $route $expected_num_notifications # notify=2 means emit notifications only for failed route installation, # make sure a single notification will be emitted for the new route. notify=2 expected_num_notifications=1 route_replacement_check $ip $notify $route $expected_num_notifications $IP link del name dummy2 log_test "IPv6 route replacement" } ipv6_route_offload_failed_test() { RET=0 local ip="ipv6" local route=2001:db8:1::/64 local offload_failed=1 echo "y"> $DEBUGFS_DIR/fib/fail_route_offload check_err $? "Failed to setup route offload to fail" # Make sure a single notification will be emitted for the programmed # route. local notify=0 local expected_num_notifications=1 route_addition_check $ip $notify $route $expected_num_notifications \ $offload_failed # Make sure two notifications will be emitted for the new route. notify=1 expected_num_notifications=2 route_addition_check $ip $notify $route $expected_num_notifications \ $offload_failed # notify=2 means emit notifications only for failed route installation, # make sure two notifications will be emitted for the new route. notify=2 expected_num_notifications=2 route_addition_check $ip $notify $route $expected_num_notifications \ $offload_failed echo "n"> $DEBUGFS_DIR/fib/fail_route_offload check_err $? "Failed to setup route offload not to fail" log_test "IPv6 route offload failed" } setup_prepare() { modprobe netdevsim &> /dev/null echo "$DEV_ADDR 1" > ${NETDEVSIM_PATH}/new_device while [ ! -d $SYSFS_NET_DIR ] ; do :; done ip netns add testns1 if [ $? -ne 0 ]; then echo "Failed to add netns \"testns1\"" exit 1 fi devlink dev reload $DEVLINK_DEV netns testns1 if [ $? -ne 0 ]; then echo "Failed to reload into netns \"testns1\"" exit 1 fi IP="ip -n testns1" $IP link add name dummy1 type dummy $IP link set dev dummy1 up } cleanup() { pre_cleanup $IP link del name dummy1 ip netns del testns1 echo "$DEV_ADDR" > ${NETDEVSIM_PATH}/del_device modprobe -r netdevsim &> /dev/null } trap cleanup EXIT setup_prepare tests_run exit $EXIT_STATUS