1#!/bin/sh
2# SPDX-License-Identifier: GPL-2.0
3#
4# This test is for checking network interface
5# For the moment it tests only ethernet interface (but wifi could be easily added)
6#
7# We assume that all network driver are loaded
8# if not they probably have failed earlier in the boot process and their logged error will be catched by another test
9#
10
11# this function will try to up the interface
12# if already up, nothing done
13# arg1: network interface name
14kci_net_start()
15{
16	netdev=$1
17
18	ip link show "$netdev" |grep -q UP
19	if [ $? -eq 0 ];then
20		echo "SKIP: $netdev: interface already up"
21		return 0
22	fi
23
24	ip link set "$netdev" up
25	if [ $? -ne 0 ];then
26		echo "FAIL: $netdev: Fail to up interface"
27		return 1
28	else
29		echo "PASS: $netdev: set interface up"
30		NETDEV_STARTED=1
31	fi
32	return 0
33}
34
35# this function will try to setup an IP and MAC address on a network interface
36# Doing nothing if the interface was already up
37# arg1: network interface name
38kci_net_setup()
39{
40	netdev=$1
41
42	# do nothing if the interface was already up
43	if [ $NETDEV_STARTED -eq 0 ];then
44		return 0
45	fi
46
47	MACADDR='02:03:04:05:06:07'
48	ip link set dev $netdev address "$MACADDR"
49	if [ $? -ne 0 ];then
50		echo "FAIL: $netdev: Cannot set MAC address"
51	else
52		ip link show $netdev |grep -q "$MACADDR"
53		if [ $? -eq 0 ];then
54			echo "PASS: $netdev: set MAC address"
55		else
56			echo "FAIL: $netdev: Cannot set MAC address"
57		fi
58	fi
59
60	#check that the interface did not already have an IP
61	ip address show "$netdev" |grep '^[[:space:]]*inet'
62	if [ $? -eq 0 ];then
63		echo "SKIP: $netdev: already have an IP"
64		return 0
65	fi
66
67	# TODO what ipaddr to set ? DHCP ?
68	echo "SKIP: $netdev: set IP address"
69	return 0
70}
71
72# test an ethtool command
73# arg1: return code for not supported (see ethtool code source)
74# arg2: summary of the command
75# arg3: command to execute
76kci_netdev_ethtool_test()
77{
78	if [ $# -le 2 ];then
79		echo "SKIP: $netdev: ethtool: invalid number of arguments"
80		return 1
81	fi
82	$3 >/dev/null
83	ret=$?
84	if [ $ret -ne 0 ];then
85		if [ $ret -eq "$1" ];then
86			echo "SKIP: $netdev: ethtool $2 not supported"
87		else
88			echo "FAIL: $netdev: ethtool $2"
89			return 1
90		fi
91	else
92		echo "PASS: $netdev: ethtool $2"
93	fi
94	return 0
95}
96
97# test ethtool commands
98# arg1: network interface name
99kci_netdev_ethtool()
100{
101	netdev=$1
102
103	#check presence of ethtool
104	ethtool --version 2>/dev/null >/dev/null
105	if [ $? -ne 0 ];then
106		echo "SKIP: ethtool not present"
107		return 1
108	fi
109
110	TMP_ETHTOOL_FEATURES="$(mktemp)"
111	if [ ! -e "$TMP_ETHTOOL_FEATURES" ];then
112		echo "SKIP: Cannot create a tmp file"
113		return 1
114	fi
115
116	ethtool -k "$netdev" > "$TMP_ETHTOOL_FEATURES"
117	if [ $? -ne 0 ];then
118		echo "FAIL: $netdev: ethtool list features"
119		rm "$TMP_ETHTOOL_FEATURES"
120		return 1
121	fi
122	echo "PASS: $netdev: ethtool list features"
123	#TODO for each non fixed features, try to turn them on/off
124	rm "$TMP_ETHTOOL_FEATURES"
125
126	kci_netdev_ethtool_test 74 'dump' "ethtool -d $netdev"
127	kci_netdev_ethtool_test 94 'stats' "ethtool -S $netdev"
128	return 0
129}
130
131# stop a netdev
132# arg1: network interface name
133kci_netdev_stop()
134{
135	netdev=$1
136
137	if [ $NETDEV_STARTED -eq 0 ];then
138		echo "SKIP: $netdev: interface kept up"
139		return 0
140	fi
141
142	ip link set "$netdev" down
143	if [ $? -ne 0 ];then
144		echo "FAIL: $netdev: stop interface"
145		return 1
146	fi
147	echo "PASS: $netdev: stop interface"
148	return 0
149}
150
151# run all test on a netdev
152# arg1: network interface name
153kci_test_netdev()
154{
155	NETDEV_STARTED=0
156	IFACE_TO_UPDOWN="$1"
157	IFACE_TO_TEST="$1"
158	#check for VLAN interface
159	MASTER_IFACE="$(echo $1 | cut -d@ -f2)"
160	if [ ! -z "$MASTER_IFACE" ];then
161		IFACE_TO_UPDOWN="$MASTER_IFACE"
162		IFACE_TO_TEST="$(echo $1 | cut -d@ -f1)"
163	fi
164
165	NETDEV_STARTED=0
166	kci_net_start "$IFACE_TO_UPDOWN"
167
168	kci_net_setup "$IFACE_TO_TEST"
169
170	kci_netdev_ethtool "$IFACE_TO_TEST"
171
172	kci_netdev_stop "$IFACE_TO_UPDOWN"
173	return 0
174}
175
176#check for needed privileges
177if [ "$(id -u)" -ne 0 ];then
178	echo "SKIP: Need root privileges"
179	exit 0
180fi
181
182ip link show 2>/dev/null >/dev/null
183if [ $? -ne 0 ];then
184	echo "SKIP: Could not run test without the ip tool"
185	exit 0
186fi
187
188TMP_LIST_NETDEV="$(mktemp)"
189if [ ! -e "$TMP_LIST_NETDEV" ];then
190	echo "FAIL: Cannot create a tmp file"
191	exit 1
192fi
193
194ip link show |grep '^[0-9]' | grep -oE '[[:space:]].*eth[0-9]*:|[[:space:]].*enp[0-9]s[0-9]:' | cut -d\  -f2 | cut -d: -f1> "$TMP_LIST_NETDEV"
195while read netdev
196do
197	kci_test_netdev "$netdev"
198done < "$TMP_LIST_NETDEV"
199
200rm "$TMP_LIST_NETDEV"
201exit 0
202