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Commit 33b01b7b authored by Florian Westphal's avatar Florian Westphal Committed by David S. Miller
Browse files

selftests: add rtnetlink test script 



add a simple script to exercise some rtnetlink call paths, so KASAN,
lockdep etc. can yell at developer before patches are sent upstream.

This can be extended to also cover bond, team, vrf and the like.

Signed-off-by: default avatarFlorian Westphal <fw@strlen.de>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 8caa38b5

tools/testing/selftests/net/Makefile

+1 −1
Original line number Diff line number Diff line
@@ -3,7 +3,7 @@ 
CFLAGS =  -Wall -Wl,--no-as-needed -O2 -g

CFLAGS += -I../../../../usr/include/



TEST_PROGS := run_netsocktests run_afpackettests test_bpf.sh netdevice.sh

TEST_PROGS := run_netsocktests run_afpackettests test_bpf.sh netdevice.sh rtnetlink.sh

TEST_GEN_FILES =  socket

TEST_GEN_FILES += psock_fanout psock_tpacket

TEST_GEN_FILES += reuseport_bpf reuseport_bpf_cpu reuseport_bpf_numa

tools/testing/selftests/net/rtnetlink.sh

0 → 100755
+199 −0
Original line number Diff line number Diff line 
#!/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

}



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_rtnl()

{

	kci_add_dummy

	if [ $ret -ne 0 ];then

		echo "FAIL: cannot add dummy interface"

		return 1

	fi



	kci_test_polrouting

	kci_test_tc

	kci_test_gre

	kci_test_bridge



	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