selftests: add a generic testsuite for ethernet device

reuseport_bpf_numa: LDFLAGS += -lnuma

TEST_PROGS := run_netsocktests run_afpackettests test_bpf.sh

TEST_PROGS := run_netsocktests run_afpackettests test_bpf.sh netdevice.sh

TEST_GEN_FILES =  socket

TEST_GEN_FILES += psock_fanout psock_tpacket

TEST_GEN_FILES += reuseport_bpf reuseport_bpf_cpu reuseport_bpf_numa

#!/bin/sh

#

# This test is for checking network interface

# For the moment it tests only ethernet interface (but wifi could be easily added)

#

# We assume that all network driver are loaded

# if not they probably have failed earlier in the boot process and their logged error will be catched by another test

#

# this function will try to up the interface

# if already up, nothing done

# arg1: network interface name

kci_net_start()

{

	netdev=$1

	ip link show "$netdev" |grep -q UP

	if [ $? -eq 0 ];then

		echo "SKIP: $netdev: interface already up"

		return 0

	fi

	ip link set "$netdev" up

	if [ $? -ne 0 ];then

		echo "FAIL: $netdev: Fail to up interface"

		return 1

	else

		echo "PASS: $netdev: set interface up"

		NETDEV_STARTED=1

	fi

	return 0

}

# this function will try to setup an IP and MAC address on a network interface

# Doing nothing if the interface was already up

# arg1: network interface name

kci_net_setup()

{

	netdev=$1

	# do nothing if the interface was already up

	if [ $NETDEV_STARTED -eq 0 ];then

		return 0

	fi

	MACADDR='02:03:04:05:06:07'

	ip link set dev $netdev address "$MACADDR"

	if [ $? -ne 0 ];then

		echo "FAIL: $netdev: Cannot set MAC address"

	else

		ip link show $netdev |grep -q "$MACADDR"

		if [ $? -eq 0 ];then

			echo "PASS: $netdev: set MAC address"

		else

			echo "FAIL: $netdev: Cannot set MAC address"

		fi

	fi

	#check that the interface did not already have an IP

	ip address show "$netdev" |grep '^[[:space:]]*inet'

	if [ $? -eq 0 ];then

		echo "SKIP: $netdev: already have an IP"

		return 0

	fi

	# TODO what ipaddr to set ? DHCP ?

	echo "SKIP: $netdev: set IP address"

	return 0

}

# test an ethtool command

# arg1: return code for not supported (see ethtool code source)

# arg2: summary of the command

# arg3: command to execute

kci_netdev_ethtool_test()

{

	if [ $# -le 2 ];then

		echo "SKIP: $netdev: ethtool: invalid number of arguments"

		return 1

	fi

	$3 >/dev/null

	ret=$?

	if [ $ret -ne 0 ];then

		if [ $ret -eq "$1" ];then

			echo "SKIP: $netdev: ethtool $2 not supported"

		else

			echo "FAIL: $netdev: ethtool $2"

			return 1

		fi

	else

		echo "PASS: $netdev: ethtool $2"

	fi

	return 0

}

# test ethtool commands

# arg1: network interface name

kci_netdev_ethtool()

{

	netdev=$1

	#check presence of ethtool

	ethtool --version 2>/dev/null >/dev/null

	if [ $? -ne 0 ];then

		echo "SKIP: ethtool not present"

		return 1

	fi

	TMP_ETHTOOL_FEATURES="$(mktemp)"

	if [ ! -e "$TMP_ETHTOOL_FEATURES" ];then

		echo "SKIP: Cannot create a tmp file"

		return 1

	fi

	ethtool -k "$netdev" > "$TMP_ETHTOOL_FEATURES"

	if [ $? -ne 0 ];then

		echo "FAIL: $netdev: ethtool list features"

		rm "$TMP_ETHTOOL_FEATURES"

		return 1

	fi

	echo "PASS: $netdev: ethtool list features"

	#TODO for each non fixed features, try to turn them on/off

	rm "$TMP_ETHTOOL_FEATURES"

	kci_netdev_ethtool_test 74 'dump' "ethtool -d $netdev"

	kci_netdev_ethtool_test 94 'stats' "ethtool -S $netdev"

	return 0

}

# stop a netdev

# arg1: network interface name

kci_netdev_stop()

{

	netdev=$1

	if [ $NETDEV_STARTED -eq 0 ];then

		echo "SKIP: $netdev: interface kept up"

		return 0

	fi

	ip link set "$netdev" down

	if [ $? -ne 0 ];then

		echo "FAIL: $netdev: stop interface"

		return 1

	fi

	echo "PASS: $netdev: stop interface"

	return 0

}

# run all test on a netdev

# arg1: network interface name

kci_test_netdev()

{

	NETDEV_STARTED=0

	IFACE_TO_UPDOWN="$1"

	IFACE_TO_TEST="$1"

	#check for VLAN interface

	MASTER_IFACE="$(echo $1 | cut -d@ -f2)"

	if [ ! -z "$MASTER_IFACE" ];then

		IFACE_TO_UPDOWN="$MASTER_IFACE"

		IFACE_TO_TEST="$(echo $1 | cut -d@ -f1)"

	fi

	NETDEV_STARTED=0

	kci_net_start "$IFACE_TO_UPDOWN"

	kci_net_setup "$IFACE_TO_TEST"

	kci_netdev_ethtool "$IFACE_TO_TEST"

	kci_netdev_stop "$IFACE_TO_UPDOWN"

	return 0

}

#check for needed privileges

if [ "$(id -u)" -ne 0 ];then

	echo "SKIP: Need root privileges"

	exit 0

fi

ip -Version 2>/dev/null >/dev/null

if [ $? -ne 0 ];then

	echo "SKIP: Could not run test without the ip tool"

	exit 0

fi

TMP_LIST_NETDEV="$(mktemp)"

if [ ! -e "$TMP_LIST_NETDEV" ];then

	echo "FAIL: Cannot create a tmp file"

	exit 1

fi

ip link show |grep '^[0-9]' | grep -oE '[[:space:]].*eth[0-9]*:|[[:space:]].*enp[0-9]s[0-9]:' | cut -d\  -f2 | cut -d: -f1> "$TMP_LIST_NETDEV"

while read netdev

do

	kci_test_netdev "$netdev"

done < "$TMP_LIST_NETDEV"

rm "$TMP_LIST_NETDEV"

exit 0