[ovs-dev] [PATCH 5/5] ovn.at: Add test for gateway.
Justin Pettit
jpettit at nicira.com
Thu Oct 15 08:55:00 UTC 2015
This test exposed a problem that ovn-controller-vtep doesn't properly
set up the "Mcast_Macs_Remote" table, which prevents broadcasts from
being sourced from the physical side of the VTEP. That issue needs to
be resolved, and then the full set of gateway traffic patterns can run.
Signed-off-by: Justin Pettit <jpettit at nicira.com>
---
tests/ofproto-macros.at | 2 +-
tests/ovn.at | 157 +++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 158 insertions(+), 1 deletions(-)
diff --git a/tests/ofproto-macros.at b/tests/ofproto-macros.at
index bc3933c..fe99186 100644
--- a/tests/ofproto-macros.at
+++ b/tests/ofproto-macros.at
@@ -202,7 +202,7 @@ ovn_attach() {
ovs-vsctl \
-- set Open_vSwitch . external-ids:system-id=$sandbox \
-- set Open_vSwitch . external-ids:ovn-remote=unix:$ovs_base/ovn-sb/ovn-sb.sock \
- -- set Open_vSwitch . external-ids:ovn-encap-type=geneve \
+ -- set Open_vSwitch . external-ids:ovn-encap-type=geneve,vxlan \
-- set Open_vSwitch . external-ids:ovn-encap-ip=$ip \
-- add-br br-int \
-- set bridge br-int fail-mode=secure other-config:disable-in-band=true \
diff --git a/tests/ovn.at b/tests/ovn.at
index b8b9e36..1b43a23 100644
--- a/tests/ovn.at
+++ b/tests/ovn.at
@@ -666,3 +666,160 @@ for i in 1 2 3; do
done
done
AT_CLEANUP
+
+
+AT_SETUP([ovn -- 3 HVs, 1 VIFs/HV, 1 gateway, 1 logical switch])
+AT_SKIP_IF([test $HAVE_PYTHON = no])
+ovn_start
+
+# Configure the Northbound database
+ovn-nbctl lswitch-add lsw0
+
+ovn-nbctl lport-add lsw0 lp1
+ovn-nbctl lport-set-macs lp1 f0:00:00:00:00:01
+
+ovn-nbctl lport-add lsw0 lp2
+ovn-nbctl lport-set-macs lp2 f0:00:00:00:00:02
+
+ovn-nbctl lport-add lsw0 lp-vtep
+ovn-nbctl lport-set-type lp-vtep vtep
+ovn-nbctl lport-set-options lp-vtep vtep-physical-switch=br-vtep vtep-logical-switch=lsw0
+ovn-nbctl lport-set-macs lp-vtep unknown
+
+net_add n1 # Network to connect hv1, hv2, and vtep
+net_add n2 # Network to connect vtep and hv3
+
+# Create hypervisor hv1 connected to n1
+sim_add hv1
+as hv1
+ovs-vsctl add-br br-phys
+ovn_attach n1 br-phys 192.168.0.1
+ovs-vsctl add-port br-int vif1 -- set Interface vif1 external-ids:iface-id=lp1 options:tx_pcap=hv1/vif1-tx.pcap options:rxq_pcap=hv1/vif1-rx.pcap ofport-request=1
+
+# Create hypervisor hv2 connected to n1
+sim_add hv2
+as hv2
+ovs-vsctl add-br br-phys
+ovn_attach n1 br-phys 192.168.0.2
+ovs-vsctl add-port br-int vif2 -- set Interface vif2 external-ids:iface-id=lp2 options:tx_pcap=hv2/vif2-tx.pcap options:rxq_pcap=hv2/vif2-rx.pcap ofport-request=1
+
+
+# Start the vtep emulator with a leg in both networks
+sim_add vtep
+as vtep
+
+ovsdb-tool create "$ovs_base"/vtep/vtep.db "$abs_top_srcdir"/vtep/vtep.ovsschema || return 1
+ovs-appctl -t ovsdb-server ovsdb-server/add-db "$ovs_base"/vtep/vtep.db
+
+ovs-vsctl add-br br-phys
+net_attach n1 br-phys
+
+mac=`ovs-vsctl get Interface br-phys mac_in_use | sed s/\"//g`
+arp_table="$arp_table $sandbox,br-phys,192.168.0.3,$mac"
+ovs-appctl netdev-dummy/ip4addr br-phys 192.168.0.3/24 >/dev/null || return 1
+ovs-appctl ovs/route/add 192.168.0.3/24 br-phys >/dev/null || return 1
+
+ovs-vsctl add-br br-vtep
+net_attach n2 br-vtep
+
+vtep-ctl add-ps br-vtep
+vtep-ctl set Physical_Switch br-vtep tunnel_ips=192.168.0.3
+vtep-ctl add-ls lsw0
+
+start_daemon ovs-vtep br-vtep
+start_daemon ovn-controller-vtep --vtep-db=unix:"$ovs_base"/vtep/db.sock --ovnsb-db=unix:"$ovs_base"/ovn-sb/ovn-sb.sock
+
+sleep 1
+
+vtep-ctl bind-ls br-vtep br-vtep_n2 0 lsw0
+
+sleep 1
+
+# Add hv3 on the other side of the vtep
+sim_add hv3
+as hv3
+ovs-vsctl add-br br-phys
+net_attach n2 br-phys
+
+ovs-vsctl add-port br-phys vif3 -- set Interface vif3 options:tx_pcap=hv3/vif3-tx.pcap options:rxq_pcap=hv3/vif3-rx.pcap ofport-request=1
+
+# Pre-populate the hypervisors' ARP tables so that we don't lose any
+# packets for ARP resolution (native tunneling doesn't queue packets
+# for ARP resolution).
+ovn_populate_arp
+
+# Allow some time for ovn-northd and ovn-controller to catch up.
+# XXX This should be more systematic.
+sleep 1
+ovn-sbctl show
+
+# 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. 1 for vif1.
+trim_zeros() {
+ sed 's/\(00\)\{1,\}$//'
+}
+for i in 1 2 3; do
+ : > $i.expected
+done
+test_packet() {
+ local inport=$1 packet=$2$3$4; shift; shift; shift; shift
+ #hv=hv`echo $inport | sed 's/^\(.\).*/\1/'`
+ hv=hv$inport
+ vif=vif$inport
+ as $hv ovs-appctl netdev-dummy/receive $vif $packet
+ for outport; do
+ echo $packet | trim_zeros >> $outport.expected
+ done
+}
+
+# Send packets between all pairs of source and destination ports:
+#
+# 1. Unicast packets are delivered to exactly one lport (except that packets
+# destined to their input ports are dropped).
+#
+# 2. Broadcast and multicast are delivered to all lports except the input port.
+#
+# 3. The lswitch delivers packets with an unknown destination to lports with
+# "unknown" among their MAC addresses (and port security disabled).
+for s in 1 2 3; do
+ bcast=
+ unknown=
+ for d in 1 2 3; do
+ if test $d != $s; then unicast=$d; else unicast=; fi
+ test_packet $s f0000000000$d f0000000000$s 00$s$d $unicast #1
+
+ # The vtep (vif3) is the only one configured for "unknown"
+ if test $d != $s && test $d = 3; then
+ unknown="$unknown $d"
+ fi
+ bcast="$bcast $unicast"
+ done
+
+ # Broadcast and multicast.
+ # xxx ovn-controller-vtep doesn't handle multicast traffic that is
+ # xxx sourced from the gateway properly.
+ #test_packet $s ffffffffffff f0000000000$s 0${s}ff $bcast #2
+ #test_packet $s 010000000000 f0000000000$s 0${s}ff $bcast #2
+
+ test_packet $s f0000000ffff f0000000000$s 0${s}66 $unknown #3
+done
+
+# Allow some time for packet forwarding.
+# XXX This can be improved.
+sleep 1
+
+# Now check the packets actually received against the ones expected.
+for i in 1 2 3; do
+ file=hv$i/vif$i-tx.pcap
+ echo $file
+ $PYTHON "$top_srcdir/utilities/ovs-pcap.in" $file | trim_zeros > $i.packets
+ cp $i.expected expout
+ AT_CHECK([cat $i.packets], [0], [expout])
+ echo
+done
+AT_CLEANUP
--
1.7.5.4
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