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mcast-snooping: Test per port explicit flooding.
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Various options affect how the mcast snooping module work.

When multicast snooping is enabled and a reporter is known, it is still
possible to flood associated packets to some other port via the
mcast-snooping-flood option.

If flooding unregistered traffic is disabled, it is still possible to
flood multicast traffic too with the mcast-snooping-flood option.

IGMP reports may have to be flooded to some ports explicitly with the
mcast-snooping-flood-reports option.

Test those parameters.

Acked-by: Paolo Valerio <[email protected]>
Signed-off-by: David Marchand <[email protected]>
Acked-by: Eelco Chaudron <[email protected]>
Signed-off-by: Simon Horman <[email protected]>
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@david-marchand
david-marchand authored and Simon Horman committed Nov 24, 2023
1 parent 8313ebb commit df101fe
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280 changes: 280 additions & 0 deletions tests/mcast-snooping.at
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Original file line number Diff line number Diff line change
Expand Up @@ -105,6 +105,286 @@ AT_CHECK([ovs-appctl mdb/show br0], [0], [dnl
OVS_VSWITCHD_STOP
AT_CLEANUP


AT_SETUP([mcast - check multicast per port flooding])
OVS_VSWITCHD_START([])

AT_CHECK([
ovs-vsctl set bridge br0 \
datapath_type=dummy \
mcast_snooping_enable=true \
other-config:mcast-snooping-disable-flood-unregistered=false
], [0])

AT_CHECK([ovs-ofctl add-flow br0 action=normal])

AT_CHECK([
ovs-vsctl add-port br0 p1 \
-- set Interface p1 type=dummy other-config:hwaddr=aa:55:aa:55:00:01 ofport_request=1 \
-- add-port br0 p2 \
-- set Interface p2 type=dummy other-config:hwaddr=aa:55:aa:55:00:02 ofport_request=2 \
-- add-port br0 p3 \
-- set Interface p3 type=dummy other-config:hwaddr=aa:55:aa:55:00:03 ofport_request=3 \
], [0])

ovs-appctl time/stop

AT_CHECK([ovs-appctl ofproto/trace "in_port(3),eth(src=aa:55:aa:55:00:ff,dst=01:00:5e:01:01:01),eth_type(0x0800),ipv4(src=10.0.0.1,dst=224.1.1.1,proto=17,tos=0,ttl=64,frag=no),udp(src=0,dst=8000)"], [0], [stdout])
AT_CHECK([grep -v 'Datapath actions:' stdout], [0], [dnl
Flow: udp,in_port=3,vlan_tci=0x0000,dl_src=aa:55:aa:55:00:ff,dl_dst=01:00:5e:01:01:01,nw_src=10.0.0.1,nw_dst=224.1.1.1,nw_tos=0,nw_ecn=0,nw_ttl=64,nw_frag=no,tp_src=0,tp_dst=8000

bridge("br0")
-------------
0. priority 32768
NORMAL
-> unregistered multicast, flooding

Final flow: unchanged
Megaflow: recirc_id=0,eth,udp,in_port=3,dl_src=aa:55:aa:55:00:ff,dl_dst=01:00:5e:01:01:01,nw_dst=224.1.1.1,nw_frag=no
])
AT_CHECK([sed -ne 's/^Datapath actions: \(.*\)$/\1/p' stdout | tr "," "\n" | sort -n], [0], [dnl
1
2
100
])

# Send report packets.
AT_CHECK([
ovs-appctl netdev-dummy/receive p1 \
'01005E010101000C29A027A108004500001C000100004002CBAEAC10221EE001010112140CE9E0010101'
], [0])
AT_CHECK([ovs-appctl mdb/show br0], [0], [dnl
port VLAN GROUP Age
1 0 224.1.1.1 0
])

AT_CHECK([ovs-appctl ofproto/trace "in_port(3),eth(src=aa:55:aa:55:00:ff,dst=01:00:5e:01:01:01),eth_type(0x0800),ipv4(src=10.0.0.1,dst=224.1.1.1,proto=17,tos=0,ttl=64,frag=no),udp(src=0,dst=8000)"], [0], [dnl
Flow: udp,in_port=3,vlan_tci=0x0000,dl_src=aa:55:aa:55:00:ff,dl_dst=01:00:5e:01:01:01,nw_src=10.0.0.1,nw_dst=224.1.1.1,nw_tos=0,nw_ecn=0,nw_ttl=64,nw_frag=no,tp_src=0,tp_dst=8000

bridge("br0")
-------------
0. priority 32768
NORMAL
-> forwarding to mcast group port

Final flow: unchanged
Megaflow: recirc_id=0,eth,udp,in_port=3,dl_src=aa:55:aa:55:00:ff,dl_dst=01:00:5e:01:01:01,nw_dst=224.1.1.1,nw_frag=no
Datapath actions: 1
])

AT_CHECK([ovs-vsctl set port p2 other_config:mcast-snooping-flood=true])

AT_CHECK([ovs-appctl ofproto/trace "in_port(3),eth(src=aa:55:aa:55:00:ff,dst=01:00:5e:01:01:01),eth_type(0x0800),ipv4(src=10.0.0.1,dst=224.1.1.1,proto=17,tos=0,ttl=64,frag=no),udp(src=0,dst=8000)"], [0], [dnl
Flow: udp,in_port=3,vlan_tci=0x0000,dl_src=aa:55:aa:55:00:ff,dl_dst=01:00:5e:01:01:01,nw_src=10.0.0.1,nw_dst=224.1.1.1,nw_tos=0,nw_ecn=0,nw_ttl=64,nw_frag=no,tp_src=0,tp_dst=8000

bridge("br0")
-------------
0. priority 32768
NORMAL
-> forwarding to mcast group port
-> forwarding to mcast flood port

Final flow: unchanged
Megaflow: recirc_id=0,eth,udp,in_port=3,dl_src=aa:55:aa:55:00:ff,dl_dst=01:00:5e:01:01:01,nw_dst=224.1.1.1,nw_frag=no
Datapath actions: 1,2
])

AT_CHECK([ovs-vsctl set port p3 other_config:mcast-snooping-flood=true])

AT_CHECK([ovs-appctl ofproto/trace "in_port(3),eth(src=aa:55:aa:55:00:ff,dst=01:00:5e:01:01:01),eth_type(0x0800),ipv4(src=10.0.0.1,dst=224.1.1.1,proto=17,tos=0,ttl=64,frag=no),udp(src=0,dst=8000)"], [0], [dnl
Flow: udp,in_port=3,vlan_tci=0x0000,dl_src=aa:55:aa:55:00:ff,dl_dst=01:00:5e:01:01:01,nw_src=10.0.0.1,nw_dst=224.1.1.1,nw_tos=0,nw_ecn=0,nw_ttl=64,nw_frag=no,tp_src=0,tp_dst=8000

bridge("br0")
-------------
0. priority 32768
NORMAL
-> forwarding to mcast group port
-> forwarding to mcast flood port
-> mcast flood port is input port, dropping

Final flow: unchanged
Megaflow: recirc_id=0,eth,udp,in_port=3,dl_src=aa:55:aa:55:00:ff,dl_dst=01:00:5e:01:01:01,nw_dst=224.1.1.1,nw_frag=no
Datapath actions: 1,2
])

OVS_VSWITCHD_STOP
AT_CLEANUP


AT_SETUP([mcast - check multicast per port flooding (unregistered flood disabled)])
OVS_VSWITCHD_START([])

AT_CHECK([
ovs-vsctl set bridge br0 \
datapath_type=dummy \
mcast_snooping_enable=true \
other-config:mcast-snooping-disable-flood-unregistered=true
], [0])

AT_CHECK([ovs-ofctl add-flow br0 action=normal])

AT_CHECK([
ovs-vsctl add-port br0 p1 \
-- set Interface p1 type=dummy other-config:hwaddr=aa:55:aa:55:00:01 ofport_request=1 \
-- add-port br0 p2 \
-- set Interface p2 type=dummy other-config:hwaddr=aa:55:aa:55:00:02 ofport_request=2 \
-- add-port br0 p3 \
-- set Interface p3 type=dummy other-config:hwaddr=aa:55:aa:55:00:03 ofport_request=3 \
], [0])

ovs-appctl time/stop

AT_CHECK([ovs-appctl ofproto/trace "in_port(3),eth(src=aa:55:aa:55:00:ff,dst=01:00:5e:01:01:01),eth_type(0x0800),ipv4(src=10.0.0.1,dst=224.1.1.1,proto=17,tos=0,ttl=64,frag=no),udp(src=0,dst=8000)"], [0], [dnl
Flow: udp,in_port=3,vlan_tci=0x0000,dl_src=aa:55:aa:55:00:ff,dl_dst=01:00:5e:01:01:01,nw_src=10.0.0.1,nw_dst=224.1.1.1,nw_tos=0,nw_ecn=0,nw_ttl=64,nw_frag=no,tp_src=0,tp_dst=8000

bridge("br0")
-------------
0. priority 32768
NORMAL

Final flow: unchanged
Megaflow: recirc_id=0,eth,udp,in_port=3,dl_src=aa:55:aa:55:00:ff,dl_dst=01:00:5e:01:01:01,nw_dst=224.1.1.1,nw_frag=no
Datapath actions: drop
])

AT_CHECK([ovs-vsctl set port p2 other_config:mcast-snooping-flood=true])

AT_CHECK([ovs-appctl ofproto/trace "in_port(3),eth(src=aa:55:aa:55:00:ff,dst=01:00:5e:01:01:01),eth_type(0x0800),ipv4(src=10.0.0.1,dst=224.1.1.1,proto=17,tos=0,ttl=64,frag=no),udp(src=0,dst=8000)"], [0], [dnl
Flow: udp,in_port=3,vlan_tci=0x0000,dl_src=aa:55:aa:55:00:ff,dl_dst=01:00:5e:01:01:01,nw_src=10.0.0.1,nw_dst=224.1.1.1,nw_tos=0,nw_ecn=0,nw_ttl=64,nw_frag=no,tp_src=0,tp_dst=8000

bridge("br0")
-------------
0. priority 32768
NORMAL
-> forwarding to mcast flood port

Final flow: unchanged
Megaflow: recirc_id=0,eth,udp,in_port=3,dl_src=aa:55:aa:55:00:ff,dl_dst=01:00:5e:01:01:01,nw_dst=224.1.1.1,nw_frag=no
Datapath actions: 2
])

AT_CHECK([ovs-vsctl set port p3 other_config:mcast-snooping-flood=true])

AT_CHECK([ovs-appctl ofproto/trace "in_port(3),eth(src=aa:55:aa:55:00:ff,dst=01:00:5e:01:01:01),eth_type(0x0800),ipv4(src=10.0.0.1,dst=224.1.1.1,proto=17,tos=0,ttl=64,frag=no),udp(src=0,dst=8000)"], [0], [dnl
Flow: udp,in_port=3,vlan_tci=0x0000,dl_src=aa:55:aa:55:00:ff,dl_dst=01:00:5e:01:01:01,nw_src=10.0.0.1,nw_dst=224.1.1.1,nw_tos=0,nw_ecn=0,nw_ttl=64,nw_frag=no,tp_src=0,tp_dst=8000

bridge("br0")
-------------
0. priority 32768
NORMAL
-> forwarding to mcast flood port
-> mcast flood port is input port, dropping

Final flow: unchanged
Megaflow: recirc_id=0,eth,udp,in_port=3,dl_src=aa:55:aa:55:00:ff,dl_dst=01:00:5e:01:01:01,nw_dst=224.1.1.1,nw_frag=no
Datapath actions: 2
])

OVS_VSWITCHD_STOP
AT_CLEANUP


AT_SETUP([mcast - check reports per port flooding])
OVS_VSWITCHD_START([])

AT_CHECK([
ovs-vsctl set bridge br0 \
datapath_type=dummy \
mcast_snooping_enable=true \
other-config:mcast-snooping-disable-flood-unregistered=false
], [0])

AT_CHECK([ovs-ofctl add-flow br0 action=normal])

AT_CHECK([
ovs-vsctl add-port br0 p1 \
-- set Interface p1 type=dummy other-config:hwaddr=aa:55:aa:55:00:01 ofport_request=1 \
-- add-port br0 p2 \
-- set Interface p2 type=dummy other-config:hwaddr=aa:55:aa:55:00:02 ofport_request=2 \
-- add-port br0 p3 \
-- set Interface p3 type=dummy other-config:hwaddr=aa:55:aa:55:00:03 ofport_request=3 \
], [0])

ovs-appctl time/stop

AT_CHECK([ovs-appctl ofproto/trace "in_port(1)" '01005E010101000C29A027A108004500001C000100004002CBAEAC10221EE001010112140CE9E0010101'], [0], [dnl
Flow: ip,in_port=1,vlan_tci=0x0000,dl_src=00:0c:29:a0:27:a1,dl_dst=01:00:5e:01:01:01,nw_src=172.16.34.30,nw_dst=224.1.1.1,nw_proto=2,nw_tos=0,nw_ecn=0,nw_ttl=64,nw_frag=no,tp_src=18,tp_dst=20

bridge("br0")
-------------
0. priority 32768
NORMAL
-> learned that 00:0c:29:a0:27:a1 is on port p1 in VLAN 0
-> multicast snooping learned that 224.1.1.1 is on port p1 in VLAN 0

Final flow: unchanged
Megaflow: recirc_id=0,eth,ip,in_port=1,dl_src=00:0c:29:a0:27:a1,dl_dst=01:00:5e:01:01:01,nw_proto=2,nw_frag=no
Datapath actions: drop
This flow is handled by the userspace slow path because it:
- Uses action(s) not supported by datapath.
])

AT_CHECK([ovs-vsctl set port p3 other_config:mcast-snooping-flood-reports=true])

AT_CHECK([ovs-appctl ofproto/trace "in_port(1)" '01005E010101000C29A027A108004500001C000100004002CBAEAC10221EE001010112140CE9E0010101'], [0], [dnl
Flow: ip,in_port=1,vlan_tci=0x0000,dl_src=00:0c:29:a0:27:a1,dl_dst=01:00:5e:01:01:01,nw_src=172.16.34.30,nw_dst=224.1.1.1,nw_proto=2,nw_tos=0,nw_ecn=0,nw_ttl=64,nw_frag=no,tp_src=18,tp_dst=20

bridge("br0")
-------------
0. priority 32768
NORMAL
-> forwarding report to mcast flagged port

Final flow: unchanged
Megaflow: recirc_id=0,eth,ip,in_port=1,dl_src=00:0c:29:a0:27:a1,dl_dst=01:00:5e:01:01:01,nw_proto=2,nw_frag=no
Datapath actions: 3
This flow is handled by the userspace slow path because it:
- Uses action(s) not supported by datapath.
])

AT_CHECK([ovs-vsctl set port p2 other_config:mcast-snooping-flood-reports=true])

AT_CHECK([ovs-appctl ofproto/trace "in_port(1)" '01005E010101000C29A027A108004500001C000100004002CBAEAC10221EE001010112140CE9E0010101'], [0], [dnl
Flow: ip,in_port=1,vlan_tci=0x0000,dl_src=00:0c:29:a0:27:a1,dl_dst=01:00:5e:01:01:01,nw_src=172.16.34.30,nw_dst=224.1.1.1,nw_proto=2,nw_tos=0,nw_ecn=0,nw_ttl=64,nw_frag=no,tp_src=18,tp_dst=20

bridge("br0")
-------------
0. priority 32768
NORMAL
-> forwarding report to mcast flagged port
-> forwarding report to mcast flagged port

Final flow: unchanged
Megaflow: recirc_id=0,eth,ip,in_port=1,dl_src=00:0c:29:a0:27:a1,dl_dst=01:00:5e:01:01:01,nw_proto=2,nw_frag=no
Datapath actions: 3,2
This flow is handled by the userspace slow path because it:
- Uses action(s) not supported by datapath.
])

AT_CHECK([ovs-vsctl set port p1 other_config:mcast-snooping-flood-reports=true])

AT_CHECK([ovs-appctl ofproto/trace "in_port(1)" '01005E010101000C29A027A108004500001C000100004002CBAEAC10221EE001010112140CE9E0010101'], [0], [dnl
Flow: ip,in_port=1,vlan_tci=0x0000,dl_src=00:0c:29:a0:27:a1,dl_dst=01:00:5e:01:01:01,nw_src=172.16.34.30,nw_dst=224.1.1.1,nw_proto=2,nw_tos=0,nw_ecn=0,nw_ttl=64,nw_frag=no,tp_src=18,tp_dst=20

bridge("br0")
-------------
0. priority 32768
NORMAL
-> forwarding report to mcast flagged port
-> forwarding report to mcast flagged port
-> mcast port is input port, dropping the Report

Final flow: unchanged
Megaflow: recirc_id=0,eth,ip,in_port=1,dl_src=00:0c:29:a0:27:a1,dl_dst=01:00:5e:01:01:01,nw_proto=2,nw_frag=no
Datapath actions: 3,2
This flow is handled by the userspace slow path because it:
- Uses action(s) not supported by datapath.
])

OVS_VSWITCHD_STOP
AT_CLEANUP


AT_SETUP([mcast - delete the port mdb when vlan configuration changed])
OVS_VSWITCHD_START([])

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