tools/testing/selftests/net/netdevice.sh

   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 # Kselftest framework requirement - SKIP code is 4.
  12 ksft_skip=4
  13
  14 # this function will try to up the interface
  15 # if already up, nothing done
  16 # arg1: network interface name
  17 kci_net_start()
  18 {
  19         netdev=$1
  20
  21         ip link show "$netdev" |grep -q UP
  22         if [ $? -eq 0 ];then
  23                 echo "SKIP: $netdev: interface already up"
  24                 return $ksft_skip
  25         fi
  26
  27         ip link set "$netdev" up
  28         if [ $? -ne 0 ];then
  29                 echo "FAIL: $netdev: Fail to up interface"
  30                 return 1
  31         else
  32                 echo "PASS: $netdev: set interface up"
  33                 NETDEV_STARTED=1
  34         fi
  35         return 0
  36 }
  37
  38 # this function will try to setup an IP and MAC address on a network interface
  39 # Doing nothing if the interface was already up
  40 # arg1: network interface name
  41 kci_net_setup()
  42 {
  43         netdev=$1
  44
  45         # do nothing if the interface was already up
  46         if [ $NETDEV_STARTED -eq 0 ];then
  47                 return 0
  48         fi
  49
  50         MACADDR='02:03:04:05:06:07'
  51         ip link set dev $netdev address "$MACADDR"
  52         if [ $? -ne 0 ];then
  53                 echo "FAIL: $netdev: Cannot set MAC address"
  54         else
  55                 ip link show $netdev |grep -q "$MACADDR"
  56                 if [ $? -eq 0 ];then
  57                         echo "PASS: $netdev: set MAC address"
  58                 else
  59                         echo "FAIL: $netdev: Cannot set MAC address"
  60                 fi
  61         fi
  62
  63         #check that the interface did not already have an IP
  64         ip address show "$netdev" |grep '^[[:space:]]*inet'
  65         if [ $? -eq 0 ];then
  66                 echo "SKIP: $netdev: already have an IP"
  67                 return $ksft_skip
  68         fi
  69
  70         # TODO what ipaddr to set ? DHCP ?
  71         echo "SKIP: $netdev: set IP address"
  72         return $ksft_skip
  73 }
  74
  75 # test an ethtool command
  76 # arg1: return code for not supported (see ethtool code source)
  77 # arg2: summary of the command
  78 # arg3: command to execute
  79 kci_netdev_ethtool_test()
  80 {
  81         if [ $# -le 2 ];then
  82                 echo "SKIP: $netdev: ethtool: invalid number of arguments"
  83                 return 1
  84         fi
  85         $3 >/dev/null
  86         ret=$?
  87         if [ $ret -ne 0 ];then
  88                 if [ $ret -eq "$1" ];then
  89                         echo "SKIP: $netdev: ethtool $2 not supported"
  90                         return $ksft_skip
  91                 else
  92                         echo "FAIL: $netdev: ethtool $2"
  93                         return 1
  94                 fi
  95         else
  96                 echo "PASS: $netdev: ethtool $2"
  97         fi
  98         return 0
  99 }
 100
 101 # test ethtool commands
 102 # arg1: network interface name
 103 kci_netdev_ethtool()
 104 {
 105         netdev=$1
 106
 107         #check presence of ethtool
 108         ethtool --version 2>/dev/null >/dev/null
 109         if [ $? -ne 0 ];then
 110                 echo "SKIP: ethtool not present"
 111                 return $ksft_skip
 112         fi
 113
 114         TMP_ETHTOOL_FEATURES="$(mktemp)"
 115         if [ ! -e "$TMP_ETHTOOL_FEATURES" ];then
 116                 echo "SKIP: Cannot create a tmp file"
 117                 return 1
 118         fi
 119
 120         ethtool -k "$netdev" > "$TMP_ETHTOOL_FEATURES"
 121         if [ $? -ne 0 ];then
 122                 echo "FAIL: $netdev: ethtool list features"
 123                 rm "$TMP_ETHTOOL_FEATURES"
 124                 return 1
 125         fi
 126         echo "PASS: $netdev: ethtool list features"
 127         #TODO for each non fixed features, try to turn them on/off
 128         rm "$TMP_ETHTOOL_FEATURES"
 129
 130         kci_netdev_ethtool_test 74 'dump' "ethtool -d $netdev"
 131         kci_netdev_ethtool_test 94 'stats' "ethtool -S $netdev"
 132         return 0
 133 }
 134
 135 # stop a netdev
 136 # arg1: network interface name
 137 kci_netdev_stop()
 138 {
 139         netdev=$1
 140
 141         if [ $NETDEV_STARTED -eq 0 ];then
 142                 echo "SKIP: $netdev: interface kept up"
 143                 return 0
 144         fi
 145
 146         ip link set "$netdev" down
 147         if [ $? -ne 0 ];then
 148                 echo "FAIL: $netdev: stop interface"
 149                 return 1
 150         fi
 151         echo "PASS: $netdev: stop interface"
 152         return 0
 153 }
 154
 155 # run all test on a netdev
 156 # arg1: network interface name
 157 kci_test_netdev()
 158 {
 159         NETDEV_STARTED=0
 160         IFACE_TO_UPDOWN="$1"
 161         IFACE_TO_TEST="$1"
 162         #check for VLAN interface
 163         MASTER_IFACE="$(echo $1 | cut -d@ -f2)"
 164         if [ ! -z "$MASTER_IFACE" ];then
 165                 IFACE_TO_UPDOWN="$MASTER_IFACE"
 166                 IFACE_TO_TEST="$(echo $1 | cut -d@ -f1)"
 167         fi
 168
 169         NETDEV_STARTED=0
 170         kci_net_start "$IFACE_TO_UPDOWN"
 171
 172         kci_net_setup "$IFACE_TO_TEST"
 173
 174         kci_netdev_ethtool "$IFACE_TO_TEST"
 175
 176         kci_netdev_stop "$IFACE_TO_UPDOWN"
 177         return 0
 178 }
 179
 180 #check for needed privileges
 181 if [ "$(id -u)" -ne 0 ];then
 182         echo "SKIP: Need root privileges"
 183         exit $ksft_skip
 184 fi
 185
 186 ip link show 2>/dev/null >/dev/null
 187 if [ $? -ne 0 ];then
 188         echo "SKIP: Could not run test without the ip tool"
 189         exit $ksft_skip
 190 fi
 191
 192 TMP_LIST_NETDEV="$(mktemp)"
 193 if [ ! -e "$TMP_LIST_NETDEV" ];then
 194         echo "FAIL: Cannot create a tmp file"
 195         exit 1
 196 fi
 197
 198 ip link show |grep '^[0-9]' | grep -oE '[[:space:]].*eth[0-9]*:|[[:space:]].*enp[0-9]s[0-9]:' | cut -d\  -f2 | cut -d: -f1> "$TMP_LIST_NETDEV"
 199 while read netdev
 200 do
 201         kci_test_netdev "$netdev"
 202 done < "$TMP_LIST_NETDEV"
 203
 204 rm "$TMP_LIST_NETDEV"
 205 exit 0