#!/bin/bash # SPDX-License-Identifier: GPL-2.0 # # This test is for checking the FIB offload API. It makes use of netdevsim # which registers a listener to the FIB notification chain. lib_dir=$(dirname $0)/../../../net/forwarding ALL_TESTS=" ipv4_identical_routes ipv4_tos ipv4_metric ipv4_replace ipv4_delete ipv4_plen ipv4_replay ipv4_flush ipv4_error_path ipv4_delete_fail ipv6_add ipv6_metric ipv6_append_single ipv6_replace_single ipv6_metric_multipath ipv6_append_multipath ipv6_replace_multipath ipv6_append_multipath_to_single ipv6_delete_single ipv6_delete_multipath ipv6_replay_single ipv6_replay_multipath ipv6_error_path ipv6_delete_fail " NETDEVSIM_PATH=/sys/bus/netdevsim/ DEV_ADDR=1337 DEV=netdevsim${DEV_ADDR} SYSFS_NET_DIR=/sys/bus/netdevsim/devices/$DEV/net/ DEBUGFS_DIR=/sys/kernel/debug/netdevsim/$DEV/ NUM_NETIFS=0 source $lib_dir/lib.sh source $lib_dir/fib_offload_lib.sh DEVLINK_DEV= source $lib_dir/devlink_lib.sh DEVLINK_DEV=netdevsim/${DEV} ipv4_identical_routes() { fib_ipv4_identical_routes_test "testns1" } ipv4_tos() { fib_ipv4_tos_test "testns1" } ipv4_metric() { fib_ipv4_metric_test "testns1" } ipv4_replace() { fib_ipv4_replace_test "testns1" } ipv4_delete() { fib_ipv4_delete_test "testns1" } ipv4_plen() { fib_ipv4_plen_test "testns1" } ipv4_replay_metric() { fib_ipv4_replay_metric_test "testns1" "$DEVLINK_DEV" } ipv4_replay_tos() { fib_ipv4_replay_tos_test "testns1" "$DEVLINK_DEV" } ipv4_replay_plen() { fib_ipv4_replay_plen_test "testns1" "$DEVLINK_DEV" } ipv4_replay() { ipv4_replay_metric ipv4_replay_tos ipv4_replay_plen } ipv4_flush() { fib_ipv4_flush_test "testns1" } ipv4_error_path_add() { local lsb RET=0 ip -n testns1 link add name dummy1 type dummy ip -n testns1 link set dev dummy1 up devlink -N testns1 resource set $DEVLINK_DEV path IPv4/fib size 10 devlink -N testns1 dev reload $DEVLINK_DEV for lsb in $(seq 1 20); do ip -n testns1 route add 192.0.2.${lsb}/32 dev dummy1 \ &> /dev/null done log_test "IPv4 error path - add" ip -n testns1 link del dev dummy1 } ipv4_error_path_replay() { local lsb RET=0 ip -n testns1 link add name dummy1 type dummy ip -n testns1 link set dev dummy1 up devlink -N testns1 resource set $DEVLINK_DEV path IPv4/fib size 100 devlink -N testns1 dev reload $DEVLINK_DEV for lsb in $(seq 1 20); do ip -n testns1 route add 192.0.2.${lsb}/32 dev dummy1 done devlink -N testns1 resource set $DEVLINK_DEV path IPv4/fib size 10 devlink -N testns1 dev reload $DEVLINK_DEV &> /dev/null log_test "IPv4 error path - replay" ip -n testns1 link del dev dummy1 # Successfully reload after deleting all the routes. devlink -N testns1 resource set $DEVLINK_DEV path IPv4/fib size 100 devlink -N testns1 dev reload $DEVLINK_DEV } ipv4_error_path() { # Test the different error paths of the notifiers by limiting the size # of the "IPv4/fib" resource. ipv4_error_path_add ipv4_error_path_replay } ipv4_delete_fail() { RET=0 echo "y" > $DEBUGFS_DIR/fib/fail_route_delete ip -n testns1 link add name dummy1 type dummy ip -n testns1 link set dev dummy1 up ip -n testns1 route add 192.0.2.0/24 dev dummy1 ip -n testns1 route del 192.0.2.0/24 dev dummy1 &> /dev/null # We should not be able to delete the netdev if we are leaking a # reference. ip -n testns1 link del dev dummy1 log_test "IPv4 route delete failure" echo "n" > $DEBUGFS_DIR/fib/fail_route_delete } ipv6_add() { fib_ipv6_add_test "testns1" } ipv6_metric() { fib_ipv6_metric_test "testns1" } ipv6_append_single() { fib_ipv6_append_single_test "testns1" } ipv6_replace_single() { fib_ipv6_replace_single_test "testns1" } ipv6_metric_multipath() { fib_ipv6_metric_multipath_test "testns1" } ipv6_append_multipath() { fib_ipv6_append_multipath_test "testns1" } ipv6_replace_multipath() { fib_ipv6_replace_multipath_test "testns1" } ipv6_append_multipath_to_single() { fib_ipv6_append_multipath_to_single_test "testns1" } ipv6_delete_single() { fib_ipv6_delete_single_test "testns1" } ipv6_delete_multipath() { fib_ipv6_delete_multipath_test "testns1" } ipv6_replay_single() { fib_ipv6_replay_single_test "testns1" "$DEVLINK_DEV" } ipv6_replay_multipath() { fib_ipv6_replay_multipath_test "testns1" "$DEVLINK_DEV" } ipv6_error_path_add_single() { local lsb RET=0 ip -n testns1 link add name dummy1 type dummy ip -n testns1 link set dev dummy1 up devlink -N testns1 resource set $DEVLINK_DEV path IPv6/fib size 10 devlink -N testns1 dev reload $DEVLINK_DEV for lsb in $(seq 1 20); do ip -n testns1 route add 2001:db8:1::${lsb}/128 dev dummy1 \ &> /dev/null done log_test "IPv6 error path - add single" ip -n testns1 link del dev dummy1 } ipv6_error_path_add_multipath() { local lsb RET=0 for i in $(seq 1 2); do ip -n testns1 link add name dummy$i type dummy ip -n testns1 link set dev dummy$i up ip -n testns1 address add 2001:db8:$i::1/64 dev dummy$i done devlink -N testns1 resource set $DEVLINK_DEV path IPv6/fib size 10 devlink -N testns1 dev reload $DEVLINK_DEV for lsb in $(seq 1 20); do ip -n testns1 route add 2001:db8:10::${lsb}/128 \ nexthop via 2001:db8:1::2 dev dummy1 \ nexthop via 2001:db8:2::2 dev dummy2 &> /dev/null done log_test "IPv6 error path - add multipath" for i in $(seq 1 2); do ip -n testns1 link del dev dummy$i done } ipv6_error_path_replay() { local lsb RET=0 ip -n testns1 link add name dummy1 type dummy ip -n testns1 link set dev dummy1 up devlink -N testns1 resource set $DEVLINK_DEV path IPv6/fib size 100 devlink -N testns1 dev reload $DEVLINK_DEV for lsb in $(seq 1 20); do ip -n testns1 route add 2001:db8:1::${lsb}/128 dev dummy1 done devlink -N testns1 resource set $DEVLINK_DEV path IPv6/fib size 10 devlink -N testns1 dev reload $DEVLINK_DEV &> /dev/null log_test "IPv6 error path - replay" ip -n testns1 link del dev dummy1 # Successfully reload after deleting all the routes. devlink -N testns1 resource set $DEVLINK_DEV path IPv6/fib size 100 devlink -N testns1 dev reload $DEVLINK_DEV } ipv6_error_path() { # Test the different error paths of the notifiers by limiting the size # of the "IPv6/fib" resource. ipv6_error_path_add_single ipv6_error_path_add_multipath ipv6_error_path_replay } ipv6_delete_fail() { RET=0 echo "y" > $DEBUGFS_DIR/fib/fail_route_delete ip -n testns1 link add name dummy1 type dummy ip -n testns1 link set dev dummy1 up ip -n testns1 route add 2001:db8:1::/64 dev dummy1 ip -n testns1 route del 2001:db8:1::/64 dev dummy1 &> /dev/null # We should not be able to delete the netdev if we are leaking a # reference. ip -n testns1 link del dev dummy1 log_test "IPv6 route delete failure" echo "n" > $DEBUGFS_DIR/fib/fail_route_delete } fib_notify_on_flag_change_set() { local notify=$1; shift ip netns exec testns1 sysctl -qw net.ipv4.fib_notify_on_flag_change=$notify ip netns exec testns1 sysctl -qw net.ipv6.fib_notify_on_flag_change=$notify log_info "Set fib_notify_on_flag_change to $notify" } setup_prepare() { local netdev modprobe netdevsim &> /dev/null echo "$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 [ $? -ne 0 ]; then echo "Failed to reload into netns \"testns1\"" exit 1 fi } cleanup() { pre_cleanup ip netns del testns1 echo "$DEV_ADDR" > ${NETDEVSIM_PATH}/del_device modprobe -r netdevsim &> /dev/null } trap cleanup EXIT setup_prepare fib_notify_on_flag_change_set 1 tests_run fib_notify_on_flag_change_set 0 tests_run exit $EXIT_STATUS