openvswitch/tests/learn.at

AT_BANNER([learning action])

AT_SETUP([learning action - parsing and formatting])
AT_DATA([flows.txt], [[
actions=learn()
actions=learn(NXM_OF_VLAN_TCI[0..11], NXM_OF_ETH_DST[]=NXM_OF_ETH_SRC[], output:NXM_OF_IN_PORT[], load:10->NXM_NX_REG0[5..10])
actions=learn(table=1,idle_timeout=1, hard_timeout=2, priority=10, cookie=0xfedcba9876543210, in_port=99,NXM_OF_ETH_DST[]=NXM_OF_ETH_SRC[],load:NXM_OF_IN_PORT[]->NXM_NX_REG1[16..31])
]])
AT_CHECK([ovs-ofctl parse-flows flows.txt], [0],
[[OFPT_FLOW_MOD (xid=0x1): ADD actions=learn(table=1)
OFPT_FLOW_MOD (xid=0x2): ADD actions=learn(table=1,NXM_OF_VLAN_TCI[0..11],NXM_OF_ETH_DST[]=NXM_OF_ETH_SRC[],output:NXM_OF_IN_PORT[],load:0x000a->NXM_NX_REG0[5..10])
OFPT_FLOW_MOD (xid=0x3): ADD actions=learn(table=1,idle_timeout=1,hard_timeout=2,priority=10,cookie=0xfedcba9876543210,in_port=99,NXM_OF_ETH_DST[]=NXM_OF_ETH_SRC[],load:NXM_OF_IN_PORT[]->NXM_NX_REG1[16..31])
]])
AT_CLEANUP

AT_SETUP([learning action - examples])
AT_DATA([flows.txt], [[
# These are the examples from nicira-ext.h.
actions=learn(in_port=99,NXM_OF_ETH_DST[]=NXM_OF_ETH_SRC[], load:NXM_OF_IN_PORT[]->NXM_NX_REG1[16..31])
actions=learn(NXM_OF_VLAN_TCI[0..11], NXM_OF_ETH_DST[]=NXM_OF_ETH_SRC[],output:NXM_OF_IN_PORT[])
table=0 actions=learn(table=1,hard_timeout=10, NXM_OF_VLAN_TCI[0..11],output:NXM_OF_IN_PORT[]), resubmit(,1)
table=1 priority=0 actions=flood
]])
AT_CHECK([ovs-ofctl parse-flows flows.txt], [0],
[[OFPT_FLOW_MOD (xid=0x1): ADD actions=learn(table=1,in_port=99,NXM_OF_ETH_DST[]=NXM_OF_ETH_SRC[],load:NXM_OF_IN_PORT[]->NXM_NX_REG1[16..31])
OFPT_FLOW_MOD (xid=0x2): ADD actions=learn(table=1,NXM_OF_VLAN_TCI[0..11],NXM_OF_ETH_DST[]=NXM_OF_ETH_SRC[],output:NXM_OF_IN_PORT[])
NXT_FLOW_MOD_TABLE_ID (xid=0x3): enable
OFPT_FLOW_MOD (xid=0x4): ADD actions=learn(table=1,hard_timeout=10,NXM_OF_VLAN_TCI[0..11],output:NXM_OF_IN_PORT[]),resubmit(,1)
OFPT_FLOW_MOD (xid=0x5): ADD table:1 priority=0 actions=FLOOD
]])
AT_CLEANUP

AT_SETUP([learning action - satisfied prerequisites])
AT_DATA([flows.txt],
[[actions=learn(eth_type=0x800,load:5->NXM_OF_IP_DST[])
ip,actions=learn(load:NXM_OF_IP_DST[]->NXM_NX_REG1[])
ip,actions=learn(eth_type=0x800,NXM_OF_IP_DST[])
]])
AT_CHECK([ovs-ofctl parse-flows flows.txt], [0],
[[OFPT_FLOW_MOD (xid=0x1): ADD actions=learn(table=1,eth_type=0x800,load:0x00000005->NXM_OF_IP_DST[])
OFPT_FLOW_MOD (xid=0x2): ADD ip actions=learn(table=1,load:NXM_OF_IP_DST[]->NXM_NX_REG1[])
OFPT_FLOW_MOD (xid=0x3): ADD ip actions=learn(table=1,eth_type=0x800,NXM_OF_IP_DST[])
]])
AT_CLEANUP

AT_SETUP([learning action - invalid prerequisites])
AT_CHECK([[ovs-ofctl parse-flow 'actions=learn(load:5->NXM_OF_IP_DST[])']],
  [1], [],
  [[ovs-ofctl: load:5->NXM_OF_IP_DST[]: cannot specify destination field ip_dst because prerequisites are not satisfied
]])
AT_CHECK([[ovs-ofctl parse-flow 'actions=learn(load:NXM_OF_IP_DST[]->NXM_NX_REG1[])']],
  [1], [],
  [[ovs-ofctl: load:NXM_OF_IP_DST[]->NXM_NX_REG1[]: cannot specify source field ip_dst because prerequisites are not satisfied
]])
AT_CLEANUP

AT_SETUP([learning action - standard VLAN+MAC learning])
OVS_VSWITCHD_START(
  [add-port br0 eth0 -- set Interface eth0 type=dummy -- \
   add-port br0 eth1 -- set Interface eth1 type=dummy -- \
   add-port br0 eth2 -- set Interface eth2 type=dummy])
# Set up flow table for VLAN+MAC learning.
AT_DATA([flows.txt], [[
table=0 actions=learn(table=1, hard_timeout=60, NXM_OF_VLAN_TCI[0..11], NXM_OF_ETH_DST[]=NXM_OF_ETH_SRC[], output:NXM_OF_IN_PORT[]), resubmit(,1)
table=1 priority=0 actions=flood
]])
AT_CHECK([ovs-ofctl add-flows br0 flows.txt])

# Trace an ARP packet arriving on port 3, to create a MAC learning entry.
AT_CHECK([ovs-appctl ofproto/trace br0 'in_port(3),eth(src=50:54:00:00:00:05,dst=ff:ff:ff:ff:ff:ff),eth_type(0x0806),arp(sip=192.168.0.1,tip=192.168.0.2,op=1,sha=50:54:00:00:00:05,tha=00:00:00:00:00:00)' -generate], [0], [stdout])
AT_CHECK([tail -1 stdout], [0], [Datapath actions: 2,0,1
])

# Check for the MAC learning entry.
AT_CHECK([ovs-ofctl dump-flows br0 table=1 | ofctl_strip | sort], [0], [dnl
 table=1, hard_timeout=60,vlan_tci=0x0000/0x0fff,dl_dst=50:54:00:00:00:05 actions=output:3
 table=1, priority=0 actions=FLOOD
NXST_FLOW reply:
])

# Trace a packet arrival destined for the learned MAC.
# (This will also learn a MAC.)
AT_CHECK([ovs-appctl ofproto/trace br0 'in_port(1),eth(src=50:54:00:00:00:06,dst=50:54:00:00:00:05),eth_type(0x0806),arp(sip=192.168.0.2,tip=192.168.0.1,op=2,sha=50:54:00:00:00:06,tha=50:54:00:00:00:05)' -generate], [0], [stdout])
AT_CHECK([tail -1 stdout], [0], [Datapath actions: 3
])

# Check for both MAC learning entries.
AT_CHECK([ovs-ofctl dump-flows br0 table=1 | ofctl_strip |sort], [0], [dnl
 table=1, hard_timeout=60,vlan_tci=0x0000/0x0fff,dl_dst=50:54:00:00:00:05 actions=output:3
 table=1, hard_timeout=60,vlan_tci=0x0000/0x0fff,dl_dst=50:54:00:00:00:06 actions=output:1
 table=1, priority=0 actions=FLOOD
NXST_FLOW reply:
])

# Trace a packet arrival that updates the first learned MAC entry.
AT_CHECK([ovs-appctl ofproto/trace br0 'in_port(2),eth(src=50:54:00:00:00:05,dst=ff:ff:ff:ff:ff:ff),eth_type(0x0806),arp(sip=192.168.0.1,tip=192.168.0.2,op=1,sha=50:54:00:00:00:05,tha=00:00:00:00:00:00)' -generate], [0], [stdout])
AT_CHECK([tail -1 stdout], [0], [Datapath actions: 3,0,1
])

# Check that the MAC learning entry was updated.
AT_CHECK([ovs-ofctl dump-flows br0 table=1 | ofctl_strip | sort], [0], [dnl
 table=1, hard_timeout=60,vlan_tci=0x0000/0x0fff,dl_dst=50:54:00:00:00:05 actions=output:2
 table=1, hard_timeout=60,vlan_tci=0x0000/0x0fff,dl_dst=50:54:00:00:00:06 actions=output:1
 table=1, priority=0 actions=FLOOD
NXST_FLOW reply:
])
OVS_VSWITCHD_STOP
AT_CLEANUP