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 # this function will try to up the interface
  12 # if already up, nothing done
  13 # arg1: network interface name
  14 kci_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
  38 kci_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
  76 kci_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
  99 kci_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
 133 kci_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
 153 kci_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 "$IFACE_TO_UPDOWN"
 173         return 0
 174 }
 175
 176 #check for needed privileges
 177 if [ "$(id -u)" -ne 0 ];then
 178         echo "SKIP: Need root privileges"
 179         exit 0
 180 fi
 181
 182 ip link show 2>/dev/null >/dev/null
 183 if [ $? -ne 0 ];then
 184         echo "SKIP: Could not run test without the ip tool"
 185         exit 0
 186 fi
 187
 188 TMP_LIST_NETDEV="$(mktemp)"
 189 if [ ! -e "$TMP_LIST_NETDEV" ];then
 190         echo "FAIL: Cannot create a tmp file"
 191         exit 1
 192 fi
 193
 194 ip link show |grep '^[0-9]' | grep -oE '[[:space:]].*eth[0-9]*:|[[:space:]].*enp[0-9]s[0-9]:' | cut -d\  -f2 | cut -d: -f1> "$TMP_LIST_NETDEV"
 195 while read netdev
 196 do
 197         kci_test_netdev "$netdev"
 198 done < "$TMP_LIST_NETDEV"
 199
 200 rm "$TMP_LIST_NETDEV"
 201 exit 0