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selftests: openvswitch: add explicit drop testcase

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Test explicit drops generate the right drop reason. Also, verify that
the kernel rejects flows with actions following an explicit drop.

Acked-by: Aaron Conole <aconole@redhat.com>
Signed-off-by: Adrian Moreno <amorenoz@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Adrian Moreno 2023-08-11 16:12:54 +02:00 committed by David S. Miller
parent aab1272f5d
commit 4242029164
1 changed files with 35 additions and 0 deletions
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35
tools/testing/selftests/net/openvswitch/openvswitch.sh
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@ -217,6 +217,31 @@ test_drop_reason() {
return 1
fi
# Drop UDP 6000 traffic with an explicit action and an error code.
ovs_add_flow "test_drop_reason" dropreason \
"in_port(1),eth(),eth_type(0x0800),ipv4(src=172.31.110.10,proto=17),udp(dst=6000)" \
'drop(42)'
# Drop UDP 7000 traffic with an explicit action with no error code.
ovs_add_flow "test_drop_reason" dropreason \
"in_port(1),eth(),eth_type(0x0800),ipv4(src=172.31.110.10,proto=17),udp(dst=7000)" \
'drop(0)'
ovs_drop_record_and_run \
"test_drop_reason" ip netns exec client nc -i 1 -zuv 172.31.110.20 6000
ovs_drop_reason_count 0x30004 # OVS_DROP_EXPLICIT_ACTION_ERROR
if [[ "$?" -ne "1" ]]; then
info "Did not detect expected explicit error drops: $?"
return 1
fi
ovs_drop_record_and_run \
"test_drop_reason" ip netns exec client nc -i 1 -zuv 172.31.110.20 7000
ovs_drop_reason_count 0x30003 # OVS_DROP_EXPLICIT_ACTION
if [[ "$?" -ne "1" ]]; then
info "Did not detect expected explicit drops: $?"
return 1
fi
return 0
}
@ -458,6 +483,16 @@ test_netlink_checks () {
wc -l) == 2 ] || \
return 1
ERR_MSG="Flow actions may not be safe on all matching packets"
PRE_TEST=$(dmesg | grep -c "${ERR_MSG}")
ovs_add_flow "test_netlink_checks" nv0 \
'in_port(1),eth(),eth_type(0x0806),arp()' 'drop(0),2' \
&> /dev/null && return 1
POST_TEST=$(dmesg | grep -c "${ERR_MSG}")
if [ "$PRE_TEST" == "$POST_TEST" ]; then
info "failed - error not generated"
return 1
fi
return 0
}