#!/bin/bash# SPDX-License-Identifier: GPL-2.0 ############################################################################### Defines # Can be overridden by the configuration file.PING=${PING:=ping}PING6=${PING6:=ping6}MZ=${MZ:=mausezahn}ARPING=${ARPING:=arping}TEAMD=${TEAMD:=teamd}WAIT_TIME=${WAIT_TIME:=5}PAUSE_ON_FAIL=${PAUSE_ON_FAIL:=no}PAUSE_ON_CLEANUP=${PAUSE_ON_CLEANUP:=no}NETIF_TYPE=${NETIF_TYPE:=veth}NETIF_CREATE=${NETIF_CREATE:=yes}MCD=${MCD:=smcrouted}MC_CLI=${MC_CLI:=smcroutectl}PING_TIMEOUT=${PING_TIMEOUT:=5} relative_path="${BASH_SOURCE%/*}"if [[ "$relative_path" == "${BASH_SOURCE}" ]]; then	relative_path="."fi if [[ -f $relative_path/forwarding.config ]]; then	source "$relative_path/forwarding.config"fi ############################################################################### Sanity checks check_tc_version(){	tc -j &> /dev/null	if [[ $? -ne 0 ]]; then		echo "SKIP: iproute2 too old; tc is missing JSON support"		exit 1	fi} check_tc_shblock_support(){	tc filter help 2>&1 | grep block &> /dev/null	if [[ $? -ne 0 ]]; then		echo "SKIP: iproute2 too old; tc is missing shared block support"		exit 1	fi} check_tc_chain_support(){	tc help 2>&1|grep chain &> /dev/null	if [[ $? -ne 0 ]]; then		echo "SKIP: iproute2 too old; tc is missing chain support"		exit 1	fi} if [[ "$(id -u)" -ne 0 ]]; then	echo "SKIP: need root privileges"	exit 0fi if [[ "$CHECK_TC" = "yes" ]]; then	check_tc_versionfi require_command(){	local cmd=$1; shift 	if [[ ! -x "$(command -v "$cmd")" ]]; then		echo "SKIP: $cmd not installed"		exit 1	fi} require_command jqrequire_command $MZ if [[ ! -v NUM_NETIFS ]]; then	echo "SKIP: importer does not define \"NUM_NETIFS\""	exit 1fi ############################################################################### Command line options handling count=0 while [[ $# -gt 0 ]]; do	if [[ "$count" -eq "0" ]]; then		unset NETIFS		declare -A NETIFS	fi	count=$((count + 1))	NETIFS[p$count]="$1"	shiftdone ############################################################################### Network interfaces configuration create_netif_veth(){	local i 	for ((i = 1; i <= NUM_NETIFS; ++i)); do		local j=$((i+1)) 		ip link show dev ${NETIFS[p$i]} &> /dev/null		if [[ $? -ne 0 ]]; then			ip link add ${NETIFS[p$i]} type veth \				peer name ${NETIFS[p$j]}			if [[ $? -ne 0 ]]; then				echo "Failed to create netif"				exit 1			fi		fi		i=$j	done} create_netif(){	case "$NETIF_TYPE" in	veth) create_netif_veth	      ;;	*) echo "Can not create interfaces of type \'$NETIF_TYPE\'"	   exit 1	   ;;	esac} if [[ "$NETIF_CREATE" = "yes" ]]; then	create_netiffi for ((i = 1; i <= NUM_NETIFS; ++i)); do	ip link show dev ${NETIFS[p$i]} &> /dev/null	if [[ $? -ne 0 ]]; then		echo "SKIP: could not find all required interfaces"		exit 1	fidone ############################################################################### Helpers # Exit status to return at the end. Set in case one of the tests fails.EXIT_STATUS=0# Per-test return value. Clear at the beginning of each test.RET=0 check_err(){	local err=$1	local msg=$2 	if [[ $RET -eq 0 && $err -ne 0 ]]; then		RET=$err		retmsg=$msg	fi} check_fail(){	local err=$1	local msg=$2 	if [[ $RET -eq 0 && $err -eq 0 ]]; then		RET=1		retmsg=$msg	fi} check_err_fail(){	local should_fail=$1; shift	local err=$1; shift	local what=$1; shift 	if ((should_fail)); then		check_fail $err "$what succeeded, but should have failed"	else		check_err $err "$what failed"	fi} log_test(){	local test_name=$1	local opt_str=$2 	if [[ $# -eq 2 ]]; then		opt_str="($opt_str)"	fi 	if [[ $RET -ne 0 ]]; then		EXIT_STATUS=1		printf "TEST: %-60s  [FAIL]\n" "$test_name $opt_str"		if [[ ! -z "$retmsg" ]]; then			printf "\t%s\n" "$retmsg"		fi		if [ "${PAUSE_ON_FAIL}" = "yes" ]; then			echo "Hit enter to continue, 'q' to quit"			read a			[ "$a" = "q" ] && exit 1		fi		return 1	fi 	printf "TEST: %-60s  [ OK ]\n" "$test_name $opt_str"	return 0} log_info(){	local msg=$1 	echo "INFO: $msg"} setup_wait_dev(){	local dev=$1; shift 	while true; do		ip link show dev $dev up \			| grep 'state UP' &> /dev/null		if [[ $? -ne 0 ]]; then			sleep 1		else			break		fi	done} setup_wait(){	local num_netifs=${1:-$NUM_NETIFS} 	for ((i = 1; i <= num_netifs; ++i)); do		setup_wait_dev ${NETIFS[p$i]}	done 	# Make sure links are ready.	sleep $WAIT_TIME} lldpad_app_wait_set(){	local dev=$1; shift 	while lldptool -t -i $dev -V APP -c app | grep -Eq "pending|unknown"; do		echo "$dev: waiting for lldpad to push pending APP updates"		sleep 5	done} lldpad_app_wait_del(){	# Give lldpad a chance to push down the changes. If the device is downed	# too soon, the updates will be left pending. However, they will have	# been struck off the lldpad's DB already, so we won't be able to tell	# they are pending. Then on next test iteration this would cause	# weirdness as newly-added APP rules conflict with the old ones,	# sometimes getting stuck in an "unknown" state.	sleep 5} pre_cleanup(){	if [ "${PAUSE_ON_CLEANUP}" = "yes" ]; then		echo "Pausing before cleanup, hit any key to continue"		read	fi} vrf_prepare(){	ip -4 rule add pref 32765 table local	ip -4 rule del pref 0	ip -6 rule add pref 32765 table local	ip -6 rule del pref 0} vrf_cleanup(){	ip -6 rule add pref 0 table local	ip -6 rule del pref 32765	ip -4 rule add pref 0 table local	ip -4 rule del pref 32765} __last_tb_id=0declare -A __TB_IDS __vrf_td_id_assign(){	local vrf_name=$1 	__last_tb_id=$((__last_tb_id + 1))	__TB_IDS[$vrf_name]=$__last_tb_id	return $__last_tb_id} __vrf_td_id_lookup(){	local vrf_name=$1 	return ${__TB_IDS[$vrf_name]}} vrf_create(){	local vrf_name=$1	local tb_id 	__vrf_td_id_assign $vrf_name	tb_id=$? 	ip link add dev $vrf_name type vrf table $tb_id	ip -4 route add table $tb_id unreachable default metric 4278198272	ip -6 route add table $tb_id unreachable default metric 4278198272} vrf_destroy(){	local vrf_name=$1	local tb_id 	__vrf_td_id_lookup $vrf_name	tb_id=$? 	ip -6 route del table $tb_id unreachable default metric 4278198272	ip -4 route del table $tb_id unreachable default metric 4278198272	ip link del dev $vrf_name} __addr_add_del(){	local if_name=$1	local add_del=$2	local array 	shift	shift	array=("${@}") 	for addrstr in "${array[@]}"; do		ip address $add_del $addrstr dev $if_name	done} __simple_if_init(){	local if_name=$1; shift	local vrf_name=$1; shift	local addrs=("${@}") 	ip link set dev $if_name master $vrf_name	ip link set dev $if_name up 	__addr_add_del $if_name add "${addrs[@]}"} __simple_if_fini(){	local if_name=$1; shift	local addrs=("${@}") 	__addr_add_del $if_name del "${addrs[@]}" 	ip link set dev $if_name down	ip link set dev $if_name nomaster} simple_if_init(){	local if_name=$1	local vrf_name	local array 	shift	vrf_name=v$if_name	array=("${@}") 	vrf_create $vrf_name	ip link set dev $vrf_name up	__simple_if_init $if_name $vrf_name "${array[@]}"} simple_if_fini(){	local if_name=$1	local vrf_name	local array 	shift	vrf_name=v$if_name	array=("${@}") 	__simple_if_fini $if_name "${array[@]}"	vrf_destroy $vrf_name} tunnel_create(){	local name=$1; shift	local type=$1; shift	local local=$1; shift	local remote=$1; shift 	ip link add name $name type $type \	   local $local remote $remote "$@"	ip link set dev $name up} tunnel_destroy(){	local name=$1; shift 	ip link del dev $name} vlan_create(){	local if_name=$1; shift	local vid=$1; shift	local vrf=$1; shift	local ips=("${@}")	local name=$if_name.$vid 	ip link add name $name link $if_name type vlan id $vid	if [ "$vrf" != "" ]; then		ip link set dev $name master $vrf	fi	ip link set dev $name up	__addr_add_del $name add "${ips[@]}"} vlan_destroy(){	local if_name=$1; shift	local vid=$1; shift	local name=$if_name.$vid 	ip link del dev $name} team_create(){	local if_name=$1; shift	local mode=$1; shift 	require_command $TEAMD	$TEAMD -t $if_name -d -c '{"runner": {"name": "'$mode'"}}'	for slave in "$@"; do		ip link set dev $slave down		ip link set dev $slave master $if_name		ip link set dev $slave up	done	ip link set dev $if_name up} team_destroy(){	local if_name=$1; shift 	$TEAMD -t $if_name -k} master_name_get(){	local if_name=$1 	ip -j link show dev $if_name | jq -r '.[]["master"]'} link_stats_get(){	local if_name=$1; shift	local dir=$1; shift	local stat=$1; shift 	ip -j -s link show dev $if_name \		| jq '.[]["stats64"]["'$dir'"]["'$stat'"]'} link_stats_tx_packets_get(){	link_stats_get $1 tx packets} link_stats_rx_errors_get(){	link_stats_get $1 rx errors

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