tests: OVN localnet port test case.

Add a test case for OVN localnet ports.  We set up two hypervisors
connected by a network.  We create two ports on each hypervisor and
attach them to this network using OVN localnet ports.  Two ports are on
the untagged network, and the other two are on VLAN 101.

Signed-off-by: Russell Bryant <russell@ovn.org>
Acked-by: Ben Pfaff <blp@ovn.org>

diff --git a/tests/ovn.at b/tests/ovn.at
index e00674d..a80f9a3 100644 (file)
--- a/tests/ovn.at
+++ b/tests/ovn.at
@@ -737,6 +737,141 @@ for i in 1 2 3; do
 done
 AT_CLEANUP
 
+# 2 hypervisors, 2 logical ports per HV
+# 2 locally attached networks, 1 port per HV on each network
+AT_SETUP([ovn -- 2 HVs, 2 lports/HV, localnet ports])
+AT_KEYWORDS([ovn-localnet])
+AT_SKIP_IF([test $HAVE_PYTHON = no])
+ovn_start
+
+# We model each logical port connectivity to a locally attached
+# physical network with its own logical switch.  One port is
+# for the VIF, and the other port is a special 'localnet' port.
+
+net_add n1
+for i in 1 2; do
+    sim_add hv$i
+    as hv$i
+    ovs-vsctl add-br br-phys
+    ovs-vsctl set open . external-ids:ovn-bridge-mappings=phys:br-phys
+    ovn_attach n1 br-phys 192.168.0.$i
+
+    for j in 1 2; do
+        ovs-vsctl add-port br-int vif$i$j -- \
+            set Interface vif$i$j external-ids:iface-id=lp$i$j \
+                                  options:tx_pcap=hv$i/vif$i$j-tx.pcap \
+                                  options:rxq_pcap=hv$i/vif$i$j-rx.pcap \
+                                  ofport-request=$i$j
+
+        lswitch_name=phys-lp$i$j
+        lport_name=lp$i$j
+        ln_port_name=phys-ln-$i$j
+
+        ovn-nbctl lswitch-add $lswitch_name
+
+        if test $j -eq 1; then
+            ovn-nbctl lport-add $lswitch_name $ln_port_name
+        else
+            ovn-nbctl lport-add $lswitch_name $ln_port_name "" 101
+        fi
+        ovn-nbctl lport-set-addresses $ln_port_name unknown
+        ovn-nbctl lport-set-type $ln_port_name localnet
+        ovn-nbctl lport-set-options $ln_port_name network_name=phys
+
+        ovn-nbctl lport-add $lswitch_name $lport_name
+        ovn-nbctl lport-set-addresses $lport_name f0:00:00:00:00:$i$j
+        ovn-nbctl lport-set-port-security $lport_name f0:00:00:00:00:$i$j
+
+        OVS_WAIT_UNTIL([test x`ovn-nbctl lport-get-up $lport_name` = xup])
+    done
+done
+
+ovn_populate_arp
+
+# XXX This is now the 3rd copy of these functions in this file ...
+
+# Given the name of a logical port, prints the name of the hypervisor
+# on which it is located.
+vif_to_hv() {
+    echo hv${1%?}
+}
+#
+# test_packet INPORT DST SRC ETHTYPE OUTPORT...
+#
+# This shell function causes a packet to be received on INPORT.  The packet's
+# content has Ethernet destination DST and source SRC (each exactly 12 hex
+# digits) and Ethernet type ETHTYPE (4 hex digits).  The OUTPORTs (zero or
+# more) list the VIFs on which the packet should be received.  INPORT and the
+# OUTPORTs are specified as lport numbers, e.g. 11 for vif11.
+trim_zeros() {
+    sed 's/\(00\)\{1,\}$//'
+}
+for i in 1 2; do
+    for j in 1 2; do
+        : > $i$j.expected
+    done
+done
+test_packet() {
+    local inport=$1 src=$2 dst=$3 eth=$4; shift; shift; shift; shift
+    local packet=${src}${dst}${eth}
+    hv=`vif_to_hv $inport`
+    vif=vif$inport
+    as $hv ovs-appctl netdev-dummy/receive $vif $packet
+    for outport; do
+        echo $packet | trim_zeros >> $outport.expected
+    done
+}
+
+# lp11 and lp21 are on the same network. (phys, untagged)
+test_packet 11 f00000000021 f00000000011 1121 21
+test_packet 21 f00000000011 f00000000021 2111 11
+
+# lp12 and lp22 are on the same network. (phys, VLAN 101)
+test_packet 12 f00000000022 f00000000012 1222 22
+test_packet 22 f00000000012 f00000000022 2212 12
+
+# Ports that should not be able to communicate
+test_packet 11 f00000000012 f00000000011 1112
+test_packet 11 f00000000022 f00000000011 1122
+test_packet 21 f00000000012 f00000000021 2112
+test_packet 21 f00000000022 f00000000021 2122
+test_packet 12 f00000000011 f00000000012 1211
+test_packet 12 f00000000021 f00000000012 1221
+test_packet 22 f00000000011 f00000000022 2211
+test_packet 22 f00000000021 f00000000022 2221
+
+# Allow some time for packet forwarding.
+# XXX This can be improved.
+sleep 1
+
+# Dump a bunch of info helpful for debugging if there's a failure.
+
+echo "------ OVN dump ------"
+ovn-nbctl show
+ovn-sbctl show
+
+echo "------ hv1 dump ------"
+as hv1 ovs-vsctl show
+as hv1 ovs-ofctl -O OpenFlow13 dump-flows br-int
+
+echo "------ hv2 dump ------"
+as hv2 ovs-vsctl show
+as hv2 ovs-ofctl -O OpenFlow13 dump-flows br-int
+
+# Now check the packets actually received against the ones expected.
+for i in 1 2; do
+    for j in 1 2; do
+        file=hv$i/vif$i$j-tx.pcap
+        echo $file
+        $PYTHON "$top_srcdir/utilities/ovs-pcap.in" $file | trim_zeros > $i$j.packets
+        sort $i$j.expected > expout
+        AT_CHECK([sort $i$j.packets], [0], [expout])
+        echo
+    done
+done
+
+AT_CLEANUP
+
 AT_SETUP([ovn -- 3 HVs, 1 VIFs/HV, 1 GW, 1 LS])
 AT_SKIP_IF([test $HAVE_PYTHON = no])
 ovn_start