#!/bin/bash# SPDX-License-Identifier: GPL-2.0 lib_dir=$(dirname $0)/../../../net/forwarding ALL_TESTS="	ipv4_route_addition_test	ipv4_route_deletion_test	ipv4_route_replacement_test	ipv4_route_offload_failed_test	ipv6_route_addition_test	ipv6_route_deletion_test	ipv6_route_replacement_test	ipv6_route_offload_failed_test" NETDEVSIM_PATH=/sys/bus/netdevsim/DEV_ADDR=1337DEV=netdevsim${DEV_ADDR}DEVLINK_DEV=netdevsim/${DEV}SYSFS_NET_DIR=/sys/bus/netdevsim/devices/$DEV/net/DEBUGFS_DIR=/sys/kernel/debug/netdevsim/$DEV/NUM_NETIFS=0source $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_process %% 	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_process %% 	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_process %% 	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