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selftests: forwarding: router: Add test case for source IP in class E

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Add test case to check that packets are not dropped when they need to be
routed and their source IP in class E, (i.e., 240.0.0.0 –
255.255.255.254).

Signed-off-by: Amit Cohen <amitc@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Amit Cohen 2020-01-05 18:20:51 +02:00 committed by David S. Miller
parent 62b0fb099c
commit 383dbf70d9
1 changed files with 37 additions and 1 deletions
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38
tools/testing/selftests/net/forwarding/router.sh
View File

@ -1,9 +1,15 @@
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
ALL_TESTS="ping_ipv4 ping_ipv6"
ALL_TESTS="
ping_ipv4
ping_ipv6
sip_in_class_e
"
NUM_NETIFS=4
source lib.sh
source tc_common.sh
h1_create()
{
@ -64,6 +70,8 @@ router_create()
ip link set dev $rp1 up
ip link set dev $rp2 up
tc qdisc add dev $rp2 clsact
ip address add 192.0.2.1/24 dev $rp1
ip address add 2001:db8:1::1/64 dev $rp1
@ -79,6 +87,8 @@ router_destroy()
ip address del 2001:db8:1::1/64 dev $rp1
ip address del 192.0.2.1/24 dev $rp1
tc qdisc del dev $rp2 clsact
ip link set dev $rp2 down
ip link set dev $rp1 down
}
@ -91,6 +101,8 @@ setup_prepare()
rp2=${NETIFS[p3]}
h2=${NETIFS[p4]}
rp1mac=$(mac_get $rp1)
vrf_prepare
h1_create
@ -125,6 +137,30 @@ ping_ipv6()
ping6_test $h1 2001:db8:2::2
}
sip_in_class_e()
{
RET=0
# Disable rpfilter to prevent packets to be dropped because of it.
sysctl_set net.ipv4.conf.all.rp_filter 0
sysctl_set net.ipv4.conf.$rp1.rp_filter 0
tc filter add dev $rp2 egress protocol ip pref 1 handle 101 \
flower src_ip 240.0.0.1 ip_proto udp action pass
$MZ $h1 -t udp "sp=54321,dp=12345" -c 5 -d 1msec \
-A 240.0.0.1 -b $rp1mac -B 198.51.100.2 -q
tc_check_packets "dev $rp2 egress" 101 5
check_err $? "Packets were dropped"
log_test "Source IP in class E"
tc filter del dev $rp2 egress protocol ip pref 1 handle 101 flower
sysctl_restore net.ipv4.conf.$rp1.rp_filter
sysctl_restore net.ipv4.conf.all.rp_filter
}
trap cleanup EXIT
setup_prepare