linux/tools/testing/selftests/net/rtnetlink.sh

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#!/bin/sh
#
# This test is for checking rtnetlink callpaths, and get as much coverage as possible.
#
# set -e
devdummy="test-dummy0"
ret=0
# set global exit status, but never reset nonzero one.
check_err()
{
if [ $ret -eq 0 ]; then
ret=$1
fi
}
# same but inverted -- used when command must fail for test to pass
check_fail()
{
if [ $1 -eq 0 ]; then
ret=1
fi
}
kci_add_dummy()
{
ip link add name "$devdummy" type dummy
check_err $?
ip link set "$devdummy" up
check_err $?
}
kci_del_dummy()
{
ip link del dev "$devdummy"
check_err $?
}
# add a bridge with vlans on top
kci_test_bridge()
{
devbr="test-br0"
vlandev="testbr-vlan1"
ret=0
ip link add name "$devbr" type bridge
check_err $?
ip link set dev "$devdummy" master "$devbr"
check_err $?
ip link set "$devbr" up
check_err $?
ip link add link "$devbr" name "$vlandev" type vlan id 1
check_err $?
ip addr add dev "$vlandev" 10.200.7.23/30
check_err $?
ip -6 addr add dev "$vlandev" dead:42::1234/64
check_err $?
ip -d link > /dev/null
check_err $?
ip r s t all > /dev/null
check_err $?
ip -6 addr del dev "$vlandev" dead:42::1234/64
check_err $?
ip link del dev "$vlandev"
check_err $?
ip link del dev "$devbr"
check_err $?
if [ $ret -ne 0 ];then
echo "FAIL: bridge setup"
return 1
fi
echo "PASS: bridge setup"
}
kci_test_gre()
{
gredev=neta
rem=10.42.42.1
loc=10.0.0.1
ret=0
ip tunnel add $gredev mode gre remote $rem local $loc ttl 1
check_err $?
ip link set $gredev up
check_err $?
ip addr add 10.23.7.10 dev $gredev
check_err $?
ip route add 10.23.8.0/30 dev $gredev
check_err $?
ip addr add dev "$devdummy" 10.23.7.11/24
check_err $?
ip link > /dev/null
check_err $?
ip addr > /dev/null
check_err $?
ip addr del dev "$devdummy" 10.23.7.11/24
check_err $?
ip link del $gredev
check_err $?
if [ $ret -ne 0 ];then
echo "FAIL: gre tunnel endpoint"
return 1
fi
echo "PASS: gre tunnel endpoint"
}
# tc uses rtnetlink too, for full tc testing
# please see tools/testing/selftests/tc-testing.
kci_test_tc()
{
dev=lo
ret=0
tc qdisc add dev "$dev" root handle 1: htb
check_err $?
tc class add dev "$dev" parent 1: classid 1:10 htb rate 1mbit
check_err $?
tc filter add dev "$dev" parent 1:0 prio 5 handle ffe: protocol ip u32 divisor 256
check_err $?
tc filter add dev "$dev" parent 1:0 prio 5 handle ffd: protocol ip u32 divisor 256
check_err $?
tc filter add dev "$dev" parent 1:0 prio 5 handle ffc: protocol ip u32 divisor 256
check_err $?
tc filter add dev "$dev" protocol ip parent 1: prio 5 handle ffe:2:3 u32 ht ffe:2: match ip src 10.0.0.3 flowid 1:10
check_err $?
tc filter add dev "$dev" protocol ip parent 1: prio 5 handle ffe:2:2 u32 ht ffe:2: match ip src 10.0.0.2 flowid 1:10
check_err $?
tc filter show dev "$dev" parent 1:0 > /dev/null
check_err $?
tc filter del dev "$dev" protocol ip parent 1: prio 5 handle ffe:2:3 u32
check_err $?
tc filter show dev "$dev" parent 1:0 > /dev/null
check_err $?
tc qdisc del dev "$dev" root handle 1: htb
check_err $?
if [ $ret -ne 0 ];then
echo "FAIL: tc htb hierarchy"
return 1
fi
echo "PASS: tc htb hierarchy"
}
kci_test_polrouting()
{
ret=0
ip rule add fwmark 1 lookup 100
check_err $?
ip route add local 0.0.0.0/0 dev lo table 100
check_err $?
ip r s t all > /dev/null
check_err $?
ip rule del fwmark 1 lookup 100
check_err $?
ip route del local 0.0.0.0/0 dev lo table 100
check_err $?
if [ $ret -ne 0 ];then
echo "FAIL: policy route test"
return 1
fi
echo "PASS: policy routing"
}
kci_test_route_get()
{
ret=0
ip route get 127.0.0.1 > /dev/null
check_err $?
ip route get 127.0.0.1 dev "$devdummy" > /dev/null
check_err $?
ip route get ::1 > /dev/null
check_err $?
ip route get fe80::1 dev "$devdummy" > /dev/null
check_err $?
ip route get 127.0.0.1 from 127.0.0.1 oif lo tos 0x1 mark 0x1 > /dev/null
check_err $?
ip route get ::1 from ::1 iif lo oif lo tos 0x1 mark 0x1 > /dev/null
check_err $?
ip addr add dev "$devdummy" 10.23.7.11/24
check_err $?
ip route get 10.23.7.11 from 10.23.7.12 iif "$devdummy" > /dev/null
check_err $?
ip addr del dev "$devdummy" 10.23.7.11/24
check_err $?
if [ $ret -ne 0 ];then
echo "FAIL: route get"
return 1
fi
echo "PASS: route get"
}
kci_test_addrlabel()
{
ret=0
ip addrlabel add prefix dead::/64 dev lo label 1
check_err $?
ip addrlabel list |grep -q "prefix dead::/64 dev lo label 1"
check_err $?
ip addrlabel del prefix dead::/64 dev lo label 1 2> /dev/null
check_err $?
ip addrlabel add prefix dead::/64 label 1 2> /dev/null
check_err $?
ip addrlabel del prefix dead::/64 label 1 2> /dev/null
check_err $?
# concurrent add/delete
for i in $(seq 1 1000); do
ip addrlabel add prefix 1c3::/64 label 12345 2>/dev/null
done &
for i in $(seq 1 1000); do
ip addrlabel del prefix 1c3::/64 label 12345 2>/dev/null
done
wait
ip addrlabel del prefix 1c3::/64 label 12345 2>/dev/null
if [ $ret -ne 0 ];then
echo "FAIL: ipv6 addrlabel"
return 1
fi
echo "PASS: ipv6 addrlabel"
}
kci_test_ifalias()
{
ret=0
namewant=$(uuidgen)
syspathname="/sys/class/net/$devdummy/ifalias"
ip link set dev "$devdummy" alias "$namewant"
check_err $?
if [ $ret -ne 0 ]; then
echo "FAIL: cannot set interface alias of $devdummy to $namewant"
return 1
fi
ip link show "$devdummy" | grep -q "alias $namewant"
check_err $?
if [ -r "$syspathname" ] ; then
read namehave < "$syspathname"
if [ "$namewant" != "$namehave" ]; then
echo "FAIL: did set ifalias $namewant but got $namehave"
return 1
fi
namewant=$(uuidgen)
echo "$namewant" > "$syspathname"
ip link show "$devdummy" | grep -q "alias $namewant"
check_err $?
# sysfs interface allows to delete alias again
echo "" > "$syspathname"
ip link show "$devdummy" | grep -q "alias $namewant"
check_fail $?
# re-add the alias -- kernel should free mem when dummy dev is removed
ip link set dev "$devdummy" alias "$namewant"
check_err $?
fi
if [ $ret -ne 0 ]; then
echo "FAIL: set interface alias $devdummy to $namewant"
return 1
fi
echo "PASS: set ifalias $namewant for $devdummy"
}
kci_test_rtnl()
{
kci_add_dummy
if [ $ret -ne 0 ];then
echo "FAIL: cannot add dummy interface"
return 1
fi
kci_test_polrouting
kci_test_route_get
kci_test_tc
kci_test_gre
kci_test_bridge
kci_test_addrlabel
kci_test_ifalias
kci_del_dummy
}
#check for needed privileges
if [ "$(id -u)" -ne 0 ];then
echo "SKIP: Need root privileges"
exit 0
fi
for x in ip tc;do
$x -Version 2>/dev/null >/dev/null
if [ $? -ne 0 ];then
echo "SKIP: Could not run test without the $x tool"
exit 0
fi
done
kci_test_rtnl
exit $ret