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tunnel, tests: Add test for mirroring over tunnels.
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Add a new test for mirroring packets over a tunnel, which isn't covered
by other existing tests.

Signed-off-by: Mike Pattrick <mkp@redhat.com>
Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
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@mkp-rh @igsilya
mkp-rh authored and igsilya committed Aug 9, 2024
1 parent a1afd83 commit 6cea2b3
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83 changes: 83 additions & 0 deletions tests/tunnel-push-pop-ipv6.at
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Original file line number Diff line number Diff line change
Expand Up @@ -825,3 +825,86 @@ hash(l4(0)),recirc(0x2)

OVS_VSWITCHD_STOP
AT_CLEANUP

AT_SETUP([tunnel_push_pop_ipv6 - Mirror over tunnels])
OVS_VSWITCHD_START([dnl
add-br br-ext -- set bridge br-ext datapath_type=dummy \
other-config:hwaddr=aa:55:aa:55:00:00 \
-- add-port br0 t1 -- set Interface t1 type=geneve \
options:remote_ip=2001:cafe::91 \
-- add-port br0 t2 -- set Interface t2 type=erspan \
options:remote_ip=2001:cafe::92 options:key=flow \
options:erspan_ver=1 options:erspan_idx=flow \
-- add-port br0 p0 -- set Interface p0 type=dummy \
-- add-port br0 p1 -- set Interface p1 type=dummy \
-- add-port br-ext p-ext -- set Interface p-ext type=dummy \
options:pcap=ext.pcap])

dnl Configure mirroring over the UDP and ERSPAN tunnels.
AT_CHECK([dnl
ovs-vsctl \
set Bridge br0 mirrors=@m1,@m2 -- \
--id=@t1 get Port t1 -- \
--id=@t2 get Port t2 -- \
--id=@m1 create Mirror name=vxlan select_all=true output_port=@t1 -- \
--id=@m2 create Mirror name=erspan select_all=true output_port=@t2],
[0], [stdout])

AT_CHECK([ovs-ofctl add-flow br-ext actions=normal])
AT_CHECK([ovs-ofctl add-flow br0 actions=normal])

dnl Make sure ephemeral ports stay static across tests.
AT_CHECK([ovs-appctl tnl/egress_port_range 35190 35190], [0], [OK
])

dnl Setup an IP address.
AT_CHECK([ovs-appctl netdev-dummy/ip6addr br-ext 2001:cafe::90/64], [0], [OK
])

dnl Send two ND packets to set the tunnel's port and mac address.
AT_CHECK([ovs-appctl netdev-dummy/receive p-ext dnl
'eth(src=f8:bc:12:44:34:b3,dst=aa:55:aa:55:00:00),eth_type(0x86dd),dnl
ipv6(src=2001:cafe::91,dst=2001:cafe::90,label=0,proto=58,tclass=0,hlimit=255,frag=no),dnl
icmpv6(type=136,code=0),dnl
nd(target=2001:cafe::91,sll=00:00:00:00:00:00,tll=f8:bc:12:44:34:b3)'
])
AT_CHECK([ovs-appctl netdev-dummy/receive p-ext dnl
'eth(src=f8:bc:12:44:34:b6,dst=aa:55:aa:55:00:00),eth_type(0x86dd),dnl
ipv6(src=2001:cafe::92,dst=2001:cafe::90,label=0,proto=58,tclass=0,hlimit=255,frag=no),dnl
icmpv6(type=136,code=0),dnl
nd(target=2001:cafe::92,sll=00:00:00:00:00:00,tll=f8:bc:12:44:34:b6)'
])

m4_define([FLOW], [m4_join([,],
[in_port(p1)],
[eth(src=50:54:00:00:00:05,dst=50:54:00:00:00:07),eth_type(0x0800)],
[ipv4(src=192.168.0.1,dst=192.168.0.2,proto=1,tos=0,ttl=128,frag=no)],
[icmp(type=8,code=0)])])

m4_define([ERSPAN_ACT], [m4_join([,],
[clone(tnl_push(tnl_port(erspan_sys)],
[header(size=70,type=108],
[eth(dst=f8:bc:12:44:34:b6,src=aa:55:aa:55:00:00,dl_type=0x86dd)],
[ipv6(src=2001:cafe::90,dst=2001:cafe::92,label=0,proto=47,tclass=0x0,hlimit=64)],
[erspan(ver=1,sid=0x0,idx=0x0))],
[out_port(br-ext))],
[p-ext)])])

m4_define([GENEVE_ACT], [m4_join([,],
[clone(tnl_push(tnl_port(genev_sys_6081)],
[header(size=70,type=5],
[eth(dst=f8:bc:12:44:34:b3,src=aa:55:aa:55:00:00,dl_type=0x86dd)],
[ipv6(src=2001:cafe::90,dst=2001:cafe::91,label=0,proto=17,tclass=0x0,hlimit=64)],
[udp(src=0,dst=6081,csum=0xffff)],
[geneve(vni=0x0))],
[out_port(br-ext))],
[p-ext)])])

dnl Verify packet is mirrored to both tunnels. Tunnel actions may happen
dnl in any order.
AT_CHECK([ovs-appctl ofproto/trace --names ovs-dummy "FLOW"], [0], [stdout])
AT_CHECK([grep -q "ERSPAN_ACT" stdout])
AT_CHECK([grep -q "GENEVE_ACT" stdout])

OVS_VSWITCHD_STOP
AT_CLEANUP
79 changes: 79 additions & 0 deletions tests/tunnel-push-pop.at
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Expand Up @@ -1259,3 +1259,82 @@ hash(l4(0)),recirc(0x2)

OVS_VSWITCHD_STOP
AT_CLEANUP

AT_SETUP([tunnel_push_pop - Mirror over tunnels])
OVS_VSWITCHD_START([dnl
add-br br-ext -- set bridge br-ext datapath_type=dummy \
other-config:hwaddr=aa:55:aa:55:00:00 \
-- add-port br0 t1 -- set Interface t1 type=geneve \
options:remote_ip=1.1.1.1 \
-- add-port br0 t2 -- set Interface t2 type=erspan \
options:remote_ip=1.1.1.2 options:key=flow options:erspan_ver=1 \
options:erspan_idx=flow \
-- add-port br0 p0 -- set Interface p0 type=dummy \
-- add-port br0 p1 -- set Interface p1 type=dummy \
-- add-port br-ext p-ext -- set Interface p-ext type=dummy \
options:pcap=ext.pcap])

dnl Configure mirroring over the UDP and ERSPAN tunnels.
AT_CHECK([dnl
ovs-vsctl \
set Bridge br0 mirrors=@m1,@m2 -- \
--id=@t1 get Port t1 -- \
--id=@t2 get Port t2 -- \
--id=@m1 create Mirror name=vxlan select_all=true output_port=@t1 -- \
--id=@m2 create Mirror name=erspan select_all=true output_port=@t2],
[0], [stdout])

AT_CHECK([ovs-ofctl add-flow br-ext actions=normal])
AT_CHECK([ovs-ofctl add-flow br0 actions=normal])

dnl Make sure ephemeral ports stay static across tests.
AT_CHECK([ovs-appctl tnl/egress_port_range 35190 35190], [0], [OK
])

dnl Setup an IP address for the local side of the tunnel.
AT_CHECK([ovs-appctl netdev-dummy/ip4addr br-ext 1.1.1.3/24], [0], [OK
])

dnl Send two arp replies to populate arp table with tunnel remote endpoints.
AT_CHECK([ovs-appctl netdev-dummy/receive p-ext dnl
'eth(src=f8:bc:12:44:34:b6,dst=ff:ff:ff:ff:ff:ff),eth_type(0x0806),dnl
arp(sip=1.1.1.1,tip=1.1.1.3,op=2,sha=f8:bc:12:44:34:b6,tha=00:00:00:00:00:00)'
])
AT_CHECK([ovs-appctl netdev-dummy/receive p-ext dnl
'eth(src=f8:bc:12:44:34:b3,dst=ff:ff:ff:ff:ff:ff),eth_type(0x0806),dnl
arp(sip=1.1.1.2,tip=1.1.1.3,op=2,sha=f8:bc:12:44:34:b3,tha=00:00:00:00:00:00)'
])

m4_define([FLOW], [m4_join([,],
[in_port(p1)],
[eth(src=50:54:00:00:00:05,dst=50:54:00:00:00:07),eth_type(0x0800)],
[ipv4(src=192.168.0.1,dst=192.168.0.2,proto=1,tos=0,ttl=128,frag=no)],
[icmp(type=8,code=0)])])

m4_define([ERSPAN_ACT], [m4_join([,],
[clone(tnl_push(tnl_port(erspan_sys)],
[header(size=50,type=107],
[eth(dst=f8:bc:12:44:34:b3,src=aa:55:aa:55:00:00,dl_type=0x0800)],
[ipv4(src=1.1.1.3,dst=1.1.1.2,proto=47,tos=0,ttl=64,frag=0x4000)],
[erspan(ver=1,sid=0x0,idx=0x0))],
[out_port(br-ext))],
[p-ext)])])

m4_define([GENEVE_ACT], [m4_join([,],
[clone(tnl_push(tnl_port(genev_sys_6081)],
[header(size=50,type=5],
[eth(dst=f8:bc:12:44:34:b6,src=aa:55:aa:55:00:00,dl_type=0x0800)],
[ipv4(src=1.1.1.3,dst=1.1.1.1,proto=17,tos=0,ttl=64,frag=0x4000)],
[udp(src=0,dst=6081,csum=0x0)],
[geneve(vni=0x0))],
[out_port(br-ext))],
[p-ext)])])

dnl Verify packet is mirrored to both tunnels. Tunnel actions may happen
dnl in any order.
AT_CHECK([ovs-appctl ofproto/trace --names ovs-dummy "FLOW"], [0], [stdout])
AT_CHECK([grep -q "ERSPAN_ACT" stdout])
AT_CHECK([grep -q "GENEVE_ACT" stdout])

OVS_VSWITCHD_STOP
AT_CLEANUP

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