tests/learn.at

   1 AT_BANNER([learning action])
   2
   3 AT_SETUP([learning action - parsing and formatting])
   4 AT_DATA([flows.txt], [[
   5 actions=learn()
   6 actions=learn(send_flow_rem)
   7 actions=learn(delete_learned)
   8 actions=learn(send_flow_rem,delete_learned)
   9 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])
  10 actions=learn(table=1,idle_timeout=10, hard_timeout=20, fin_idle_timeout=5, fin_hard_timeout=10, 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])
  11 ]])
  12 AT_CHECK([ovs-ofctl parse-flows flows.txt], [0],
  13 [[usable protocols: any
  14 chosen protocol: OpenFlow10-table_id
  15 OFPT_FLOW_MOD (xid=0x1): ADD actions=learn(table=1)
  16 OFPT_FLOW_MOD (xid=0x2): ADD actions=learn(table=1,send_flow_rem)
  17 OFPT_FLOW_MOD (xid=0x3): ADD actions=learn(table=1,delete_learned)
  18 OFPT_FLOW_MOD (xid=0x4): ADD actions=learn(table=1,send_flow_rem,delete_learned)
  19 OFPT_FLOW_MOD (xid=0x5): 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:0xa->NXM_NX_REG0[5..10])
  20 OFPT_FLOW_MOD (xid=0x6): ADD actions=learn(table=1,idle_timeout=10,hard_timeout=20,fin_idle_timeout=5,fin_hard_timeout=10,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])
  21 ]])
  22 AT_CLEANUP
  23
  24 AT_SETUP([learning action - parsing and formatting - illegal in_port_oxm])
  25 AT_CHECK([[ovs-ofctl parse-flow 'actions=learn(table=1, in_port_oxm=123456)']],
  26   [1], [], [stderr])
  27 AT_CHECK([sed -e 's/.*|ofp_util|WARN|//' < stderr], [0],
  28   [[port 123456 is outside the supported range 0 through ffff or 0xffffff00 through 0xffffffff
  29 ovs-ofctl: 123456: port value out of range for in_port_oxm
  30 ]], [[]])
  31 AT_CLEANUP
  32
  33 AT_SETUP([learning action - parsing and formatting - OXM])
  34 AT_DATA([flows.txt], [[
  35 actions=learn(output:OXM_OF_IN_PORT[])
  36 actions=learn(table=1, in_port=1, load:OXM_OF_IN_PORT[]->NXM_NX_REG1[], load:0xfffffffe->OXM_OF_IN_PORT[])
  37 ]])
  38 AT_CHECK([ovs-ofctl -O OpenFlow12 parse-flows flows.txt], [0],
  39 [[usable protocols: any
  40 chosen protocol: OXM-OpenFlow12
  41 OFPT_FLOW_MOD (OF1.2) (xid=0x1): ADD actions=learn(table=1,output:OXM_OF_IN_PORT[])
  42 OFPT_FLOW_MOD (OF1.2) (xid=0x2): ADD actions=learn(table=1,in_port=1,load:OXM_OF_IN_PORT[]->NXM_NX_REG1[],load:0xfffffffe->OXM_OF_IN_PORT[])
  43 ]])
  44 AT_CLEANUP
  45
  46 AT_SETUP([learning action - examples])
  47 AT_DATA([flows.txt], [[
  48 # These are the examples from nicira-ext.h.
  49 actions=learn(in_port=99,NXM_OF_ETH_DST[]=NXM_OF_ETH_SRC[], load:NXM_OF_IN_PORT[]->NXM_NX_REG1[16..31])
  50 actions=learn(NXM_OF_VLAN_TCI[0..11], NXM_OF_ETH_DST[]=NXM_OF_ETH_SRC[],output:NXM_OF_IN_PORT[])
  51 table=0 actions=learn(table=1,hard_timeout=10, NXM_OF_VLAN_TCI[0..11],output:NXM_OF_IN_PORT[]), resubmit(,1)
  52 table=1 priority=0 actions=flood
  53 ]])
  54 AT_CHECK([ovs-ofctl parse-flows flows.txt], [0],
  55 [[usable protocols: OXM,OpenFlow10+table_id,NXM+table_id,OpenFlow11
  56 chosen protocol: OpenFlow10+table_id
  57 OFPT_FLOW_MOD (xid=0x1): ADD table:255 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])
  58 OFPT_FLOW_MOD (xid=0x2): ADD table:255 actions=learn(table=1,NXM_OF_VLAN_TCI[0..11],NXM_OF_ETH_DST[]=NXM_OF_ETH_SRC[],output:NXM_OF_IN_PORT[])
  59 OFPT_FLOW_MOD (xid=0x3): ADD actions=learn(table=1,hard_timeout=10,NXM_OF_VLAN_TCI[0..11],output:NXM_OF_IN_PORT[]),resubmit(,1)
  60 OFPT_FLOW_MOD (xid=0x4): ADD table:1 priority=0 actions=FLOOD
  61 ]])
  62 AT_CLEANUP
  63
  64 AT_SETUP([learning action - satisfied prerequisites])
  65 AT_DATA([flows.txt],
  66 [[actions=learn(eth_type=0x800,load:5->NXM_OF_IP_DST[])
  67 ip,actions=learn(load:NXM_OF_IP_DST[]->NXM_NX_REG1[])
  68 ip,actions=learn(eth_type=0x800,OXM_OF_IPV4_DST[])
  69 ]])
  70 AT_CHECK([ovs-ofctl parse-flows flows.txt], [0],
  71 [[usable protocols: any
  72 chosen protocol: OpenFlow10-table_id
  73 OFPT_FLOW_MOD (xid=0x1): ADD actions=learn(table=1,eth_type=0x800,load:0x5->NXM_OF_IP_DST[])
  74 OFPT_FLOW_MOD (xid=0x2): ADD ip actions=learn(table=1,load:NXM_OF_IP_DST[]->NXM_NX_REG1[])
  75 OFPT_FLOW_MOD (xid=0x3): ADD ip actions=learn(table=1,eth_type=0x800,NXM_OF_IP_DST[])
  76 ]])
  77 AT_CLEANUP
  78
  79 AT_SETUP([learning action - invalid prerequisites])
  80 AT_CHECK([[ovs-ofctl parse-flow 'actions=learn(load:5->NXM_OF_IP_DST[])']],
  81   [1], [], [stderr])
  82 AT_CHECK([sed -e 's/.*|meta_flow|WARN|//' < stderr], [0],
  83   [[destination field ip_dst lacks correct prerequisites
  84 ovs-ofctl: actions are invalid with specified match (OFPBAC_MATCH_INCONSISTENT)
  85 ]], [[]])
  86 AT_CHECK([[ovs-ofctl parse-flow 'actions=learn(load:NXM_OF_IP_DST[]->NXM_NX_REG1[])']],
  87   [1], [], [stderr])
  88 AT_CHECK([sed -e 's/.*|meta_flow|WARN|//' < stderr], [0],
  89   [[source field ip_dst lacks correct prerequisites
  90 ovs-ofctl: actions are invalid with specified match (OFPBAC_MATCH_INCONSISTENT)
  91 ]])
  92 AT_CLEANUP
  93
  94 AT_SETUP([learning action - standard VLAN+MAC learning])
  95 OVS_VSWITCHD_START(
  96   [add-port br0 p1 -- set Interface p1 type=dummy ofport_request=1 -- \
  97    add-port br0 p2 -- set Interface p2 type=dummy ofport_request=2 -- \
  98    add-port br0 p3 -- set Interface p3 type=dummy ofport_request=3])
  99 # Set up flow table for VLAN+MAC learning.
 100 AT_DATA([flows.txt], [[
 101 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)
 102 table=1 priority=0 actions=flood
 103 ]])
 104 AT_CHECK([ovs-ofctl add-flows br0 flows.txt])
 105
 106 # Trace an ARP packet arriving on port 3, to create a MAC learning entry.
 107 flow="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)"
 108 AT_CHECK([ovs-appctl ofproto/trace ovs-dummy "$flow" -generate], [0], [stdout])
 109 actual=`tail -1 stdout | sed 's/Datapath actions: //'`
 110
 111 expected="1,2,100"
 112 AT_CHECK([ovs-dpctl normalize-actions "$flow" "$expected"], [0], [stdout])
 113 mv stdout expout
 114 AT_CHECK([ovs-dpctl normalize-actions "$flow" "$actual"], [0], [expout])
 115
 116 # Check for the MAC learning entry.
 117 AT_CHECK([ovs-ofctl dump-flows br0 table=1 | ofctl_strip | sort], [0], [dnl
 118  table=1, hard_timeout=60, vlan_tci=0x0000/0x0fff,dl_dst=50:54:00:00:00:05 actions=output:3
 119  table=1, priority=0 actions=FLOOD
 120 NXST_FLOW reply:
 121 ])
 122
 123 # Trace a packet arrival destined for the learned MAC.
 124 # (This will also learn a MAC.)
 125 AT_CHECK([ovs-appctl ofproto/trace ovs-dummy 'in_port(1),eth(src=50:54:00:00:00:06,dst=50:54:00:00:00:05),eth_type(0x0806),arp(sip=192.168.0.2,tip=192.168.0.1,op=2,sha=50:54:00:00:00:06,tha=50:54:00:00:00:05)' -generate], [0], [stdout])
 126 AT_CHECK([tail -1 stdout], [0], [Datapath actions: 3
 127 ])
 128
 129 # Check for both MAC learning entries.
 130 AT_CHECK([ovs-ofctl dump-flows br0 table=1 | ofctl_strip |sort], [0], [dnl
 131  table=1, hard_timeout=60, vlan_tci=0x0000/0x0fff,dl_dst=50:54:00:00:00:05 actions=output:3
 132  table=1, hard_timeout=60, vlan_tci=0x0000/0x0fff,dl_dst=50:54:00:00:00:06 actions=output:1
 133  table=1, priority=0 actions=FLOOD
 134 NXST_FLOW reply:
 135 ])
 136
 137 # Trace a packet arrival that updates the first learned MAC entry.
 138 flow="in_port(2),eth(src=50:54:00:00:00:05,dst=ff:ff:ff:ff:ff:ff),eth_type(0x0806),arp(sip=192.168.0.1,tip=192.168.0.2,op=1,sha=50:54:00:00:00:05,tha=00:00:00:00:00:00)"
 139 AT_CHECK([ovs-appctl ofproto/trace ovs-dummy "$flow" -generate], [0], [stdout])
 140 actual=`tail -1 stdout | sed 's/Datapath actions: //'`
 141
 142 expected="1,3,100"
 143 AT_CHECK([ovs-dpctl normalize-actions "$flow" "$expected"], [0], [stdout])
 144 mv stdout expout
 145 AT_CHECK([ovs-dpctl normalize-actions "$flow" "$actual"], [0], [expout])
 146
 147 # Check that the MAC learning entry was updated.
 148 AT_CHECK([ovs-ofctl dump-flows br0 table=1 | ofctl_strip | sort], [0], [dnl
 149  table=1, hard_timeout=60, vlan_tci=0x0000/0x0fff,dl_dst=50:54:00:00:00:05 actions=output:2
 150  table=1, hard_timeout=60, vlan_tci=0x0000/0x0fff,dl_dst=50:54:00:00:00:06 actions=output:1
 151  table=1, priority=0 actions=FLOOD
 152 NXST_FLOW reply:
 153 ])
 154 OVS_VSWITCHD_STOP
 155 AT_CLEANUP
 156
 157 dnl This test checks that repeated uses of a "learn" action cause the
 158 dnl modified time of the learned flow to advance.  Otherwise, the
 159 dnl learned flow will expire after its hard timeout even though it's
 160 dnl supposed to be refreshed.  (The expiration can be hard to see since
 161 dnl it gets re-learned again the next time a packet appears, but
 162 dnl sometimes the expiration can cause temporary flooding etc.)
 163 AT_SETUP([learning action - learn refreshes hard_age])
 164 OVS_VSWITCHD_START(
 165   [add-port br0 p1 -- set Interface p1 type=dummy ofport_request=1 -- \
 166    add-port br0 p2 -- set Interface p2 type=dummy ofport_request=2 -- \
 167    add-port br0 p3 -- set Interface p3 type=dummy ofport_request=3])
 168
 169 ovs-appctl time/stop
 170
 171 # Set up flow table for MAC learning.
 172 AT_DATA([flows.txt], [[
 173 table=0 actions=learn(table=1, hard_timeout=10, NXM_OF_ETH_DST[]=NXM_OF_ETH_SRC[], output:NXM_OF_IN_PORT[]), resubmit(,1)
 174 table=1 priority=0 actions=flood
 175 ]])
 176 AT_CHECK([ovs-ofctl add-flows br0 flows.txt])
 177
 178 # Trace an ICMP packet arriving on port 3, to create a MAC learning entry.
 179 flow="in_port(3),eth(src=50:54:00:00:00:07,dst=50:54:00:00:00:05),eth_type(0x0800),ipv4(src=192.168.0.2,dst=192.168.0.1,proto=1,tos=0,ttl=64,frag=no),icmp(type=0,code=0)"
 180 AT_CHECK([ovs-appctl ofproto/trace ovs-dummy "$flow" -generate], [0], [stdout])
 181 actual=`tail -1 stdout | sed 's/Datapath actions: //'`
 182
 183 expected="1,2,100"
 184 AT_CHECK([ovs-dpctl normalize-actions "$flow" "$expected"], [0], [stdout])
 185 mv stdout expout
 186 AT_CHECK([ovs-dpctl normalize-actions "$flow" "$actual"], [0], [expout])
 187
 188 # Check that the MAC learning entry appeared.
 189 AT_CHECK([ovs-ofctl dump-flows br0 table=1 | ofctl_strip | sort], [0], [dnl
 190  table=1, hard_timeout=10, dl_dst=50:54:00:00:00:07 actions=output:3
 191  table=1, priority=0 actions=FLOOD
 192 NXST_FLOW reply:
 193 ])
 194
 195 # For 25 seconds, make sure that the MAC learning entry doesn't
 196 # disappear as long as we refresh it every second.
 197 for i in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25; do
 198     ovs-appctl time/warp 1000
 199     AT_CHECK([ovs-appctl ofproto/trace ovs-dummy "$flow" -generate], [0], [stdout])
 200
 201     # Check that the entry is there.
 202     AT_CHECK([ovs-ofctl dump-flows br0 table=1], [0], [stdout])
 203     AT_CHECK([ofctl_strip < stdout | sort], [0], [dnl
 204  table=1, hard_timeout=10, dl_dst=50:54:00:00:00:07 actions=output:3
 205  table=1, priority=0 actions=FLOOD
 206 NXST_FLOW reply:
 207 ])
 208
 209     if test $i != 1; then
 210         # Check that hard_age has appeared.  We need to do this separately
 211         # from the above check because ofctl_strip removes it.  dump-flows
 212         # only prints hard_age when it is different from the flow's duration
 213         # (that is, the number of seconds from the time it was created),
 214         # so we only check for it after we've refreshed the flow once.
 215         AT_CHECK([grep dl_dst=50:54:00:00:00:07 stdout | grep -c hard_age],
 216                  [0], [1
 217 ])
 218     fi
 219 done
 220
 221 # Make sure that 15 seconds without refreshing makes the flow time out.
 222 ovs-appctl time/warp 5000
 223 ovs-appctl time/warp 5000
 224 ovs-appctl time/warp 5000
 225 sleep 1
 226 AT_CHECK([ovs-ofctl dump-flows br0 table=1 | ofctl_strip | sort], [0], [dnl
 227  table=1, priority=0 actions=FLOOD
 228 NXST_FLOW reply:
 229 ])
 230 OVS_VSWITCHD_STOP
 231 AT_CLEANUP
 232
 233 AT_SETUP([learning action - TCPv4 port learning])
 234 OVS_VSWITCHD_START(
 235   [add-port br0 p1 -- set Interface p1 type=dummy -- \
 236    add-port br0 p2 -- set Interface p2 type=dummy -- \
 237    add-port br0 p3 -- set Interface p3 type=dummy])
 238 # Set up flow table for TCPv4 port learning.
 239 AT_CHECK([[ovs-ofctl add-flow br0 'table=0 tcp actions=learn(table=1, hard_timeout=60, eth_type=0x800, nw_proto=6, NXM_OF_IP_SRC[]=NXM_OF_IP_DST[], NXM_OF_IP_DST[]=NXM_OF_IP_SRC[], NXM_OF_TCP_SRC[]=NXM_OF_TCP_DST[], NXM_OF_TCP_DST[]=NXM_OF_TCP_SRC[]), flood']])
 240
 241 # Trace a TCPv4 packet arriving on port 3.
 242 flow="in_port(3),eth(src=50:54:00:00:00:05,dst=50:54:00:00:00:06),eth_type(0x0800),ipv4(src=192.168.0.2,dst=192.168.0.1,proto=6,tos=0,ttl=64,frag=no),tcp(src=40000,dst=80)"
 243 AT_CHECK([ovs-appctl ofproto/trace ovs-dummy "$flow" -generate], [0], [stdout])
 244 actual=`tail -1 stdout | sed 's/Datapath actions: //'`
 245
 246 expected="1,2,100"
 247 AT_CHECK([ovs-dpctl normalize-actions "$flow" "$expected"], [0], [stdout])
 248 mv stdout expout
 249 AT_CHECK([ovs-dpctl normalize-actions "$flow" "$actual"], [0], [expout])
 250
 251 # Check for the learning entry.
 252 AT_CHECK([ovs-ofctl dump-flows br0 table=1 | ofctl_strip | sort], [0], [dnl
 253  table=1, hard_timeout=60, tcp,nw_src=192.168.0.1,nw_dst=192.168.0.2,tp_src=80,tp_dst=40000 actions=drop
 254 NXST_FLOW reply:
 255 ])
 256 OVS_VSWITCHD_STOP
 257 AT_CLEANUP
 258
 259 AT_SETUP([learning action - TCPv6 port learning])
 260 OVS_VSWITCHD_START(
 261   [add-port br0 p1 -- set Interface p1 type=dummy -- \
 262    add-port br0 p2 -- set Interface p2 type=dummy -- \
 263    add-port br0 p3 -- set Interface p3 type=dummy])
 264 # Set up flow table for TCPv6 port learning.
 265 # Also add a 128-bit-wide "load" action and a 128-bit literal match to check
 266 # that they work.
 267 AT_CHECK([[ovs-ofctl add-flow br0 'table=0 tcp6 actions=learn(table=1, hard_timeout=60, eth_type=0x86dd, nw_proto=6, NXM_NX_IPV6_SRC[]=NXM_NX_IPV6_DST[], ipv6_dst=2001:0db8:85a3:0000:0000:8a2e:0370:7334, NXM_OF_TCP_SRC[]=NXM_OF_TCP_DST[], NXM_OF_TCP_DST[]=NXM_OF_TCP_SRC[], load(0x20010db885a308d313198a2e03707348->NXM_NX_IPV6_DST[])), flood']])
 268
 269 # Trace a TCPv6 packet arriving on port 3.
 270 flow="in_port(3),eth(src=50:54:00:00:00:05,dst=50:54:00:00:00:06),eth_type(0x86dd),ipv6(src=fec0::2,dst=fec0::1,label=0,proto=6,tclass=0,hlimit=255,frag=no),tcp(src=40000,dst=80)"
 271 AT_CHECK([ovs-appctl ofproto/trace ovs-dummy "$flow" -generate], [0], [stdout])
 272 actual=`tail -1 stdout | sed 's/Datapath actions: //'`
 273
 274 expected="1,2,100"
 275 AT_CHECK([ovs-dpctl normalize-actions "$flow" "$expected"], [0], [stdout])
 276 mv stdout expout
 277 AT_CHECK([ovs-dpctl normalize-actions "$flow" "$actual"], [0], [expout])
 278
 279 # Check for the learning entry.
 280 AT_CHECK([ovs-ofctl dump-flows br0 | ofctl_strip | sort], [0], [dnl
 281  table=1, hard_timeout=60, tcp6,ipv6_src=fec0::1,ipv6_dst=2001:db8:85a3::8a2e:370:7334,tp_src=80,tp_dst=40000 actions=load:0x13198a2e03707348->NXM_NX_IPV6_DST[[0..63]],load:0x20010db885a308d3->NXM_NX_IPV6_DST[[64..127]]
 282  tcp6 actions=learn(table=1,hard_timeout=60,eth_type=0x86dd,nw_proto=6,NXM_NX_IPV6_SRC[[]]=NXM_NX_IPV6_DST[[]],ipv6_dst=2001:db8:85a3::8a2e:370:7334,NXM_OF_TCP_SRC[[]]=NXM_OF_TCP_DST[[]],NXM_OF_TCP_DST[[]]=NXM_OF_TCP_SRC[[]],load:0x20010db885a308d313198a2e03707348->NXM_NX_IPV6_DST[[]]),FLOOD
 283 NXST_FLOW reply:
 284 ])
 285 OVS_VSWITCHD_STOP
 286 AT_CLEANUP
 287
 288 # In this use of a learn action, the first packet in the flow creates
 289 # a new flow that changes the behavior of subsequent packets in the
 290 # flow.
 291 AT_SETUP([learning action - self-modifying flow])
 292 OVS_VSWITCHD_START
 293 ADD_OF_PORTS([br0], 1, 2, 3)
 294
 295 ovs-appctl time/stop
 296 # Set up flow table for TCPv4 port learning.
 297 AT_CHECK([[ovs-ofctl add-flow br0 'actions=load:3->NXM_NX_REG0[0..15],learn(table=0,priority=65535,NXM_OF_ETH_SRC[],NXM_OF_VLAN_TCI[0..11],output:NXM_NX_REG0[0..15]),output:2']])
 298
 299 # Trace some packets arriving.  The particular packets don't matter.
 300 for i in 1 2 3 4 5 6 7 8 9 10; do
 301     ovs-appctl netdev-dummy/receive p1 'in_port(1),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=6,tos=0,ttl=64,frag=no),tcp(src=8,dst=9)'
 302     ovs-appctl time/warp 10
 303     if [[ $i -eq 1 ]]; then
 304         sleep 1
 305     fi
 306 done
 307
 308 # Check for the learning entry.
 309 ovs-appctl time/warp 1000
 310 AT_CHECK([ovs-ofctl dump-flows br0 | ofctl_strip | sort], [0],
 311 [[ n_packets=1, n_bytes=60, actions=load:0x3->NXM_NX_REG0[0..15],learn(table=0,priority=65535,NXM_OF_ETH_SRC[],NXM_OF_VLAN_TCI[0..11],output:NXM_NX_REG0[0..15]),output:2
 312  n_packets=9, n_bytes=540, priority=65535,vlan_tci=0x0000/0x0fff,dl_src=50:54:00:00:00:05 actions=output:3
 313 NXST_FLOW reply:
 314 ]])
 315
 316 # Check that the first packet went out port 2 and the rest out port 3.
 317 AT_CHECK(
 318   [(ovs-ofctl dump-ports br0 2; ovs-ofctl dump-ports br0 3) | STRIP_XIDS], [0],
 319   [OFPST_PORT reply: 1 ports
 320   port  2: rx pkts=0, bytes=0, drop=0, errs=0, frame=0, over=0, crc=0
 321            tx pkts=1, bytes=60, drop=0, errs=0, coll=0
 322 OFPST_PORT reply: 1 ports
 323   port  3: rx pkts=0, bytes=0, drop=0, errs=0, frame=0, over=0, crc=0
 324            tx pkts=9, bytes=540, drop=0, errs=0, coll=0
 325 ])
 326
 327 OVS_VSWITCHD_STOP
 328 AT_CLEANUP
 329
 330 # This test is much like the previous, but adds idle timeouts and sends
 331 # two different flows to the bridge. This tests that the statistics are
 332 # attributed correctly.
 333 AT_SETUP([learning action - self-modifying flow with idle_timeout])
 334 OVS_VSWITCHD_START
 335 ADD_OF_PORTS([br0], 1, 2, 3)
 336
 337 ovs-appctl time/stop
 338 # Set up flow table for TCPv4 port learning.
 339 AT_CHECK([[ovs-ofctl add-flow br0 'actions=load:3->NXM_NX_REG0[0..15],learn(table=0,idle_timeout=5,priority=65535,NXM_OF_ETH_SRC[],NXM_OF_VLAN_TCI[0..11],output:NXM_NX_REG0[0..15]),output:2']])
 340
 341 # Trace some packets arriving.  The particular packets don't matter.
 342 for i in `seq 1 10`; do
 343     ovs-appctl netdev-dummy/receive p1 'in_port(1),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=6,tos=0,ttl=64,frag=no),tcp(src=8,dst=9)'
 344     ovs-appctl time/warp 10
 345     if [[ $i -eq 1 ]]; then
 346         sleep 1
 347     fi
 348 done
 349
 350 # Trace some packets arriving.  This is is a different flow from the previous.
 351 # Note that we advance time by 1 second between each packet here.
 352 for i in `seq 1 10`; do
 353     ovs-appctl netdev-dummy/receive p1 'in_port(1),eth(src=50:54:00:00:00:06,dst=50:54:00:00:00:07),eth_type(0x0800),ipv4(src=192.168.0.1,dst=192.168.0.2,proto=6,tos=0,ttl=64,frag=no),tcp(src=8,dst=9)'
 354     ovs-appctl time/warp 1000
 355     # Note: netdev-dummy/receive merely queues the packet.
 356     # We need to wait for other thread to process the packet
 357     # and update the flow's 'used' for the packet.
 358     # (i % 3 == 0) below is somehow arbitrary but chosen to ensure
 359     # that we update the flow's 'used' frequently enough to prevent
 360     # idle_timeout.
 361     if [[ $i -eq 1 -o $((i % 3)) -eq 0 ]]; then
 362         sleep 1
 363     fi
 364 done
 365
 366 # Check that the first packet of each flow went out port 2 and the rest out
 367 # port 3.
 368 AT_CHECK(
 369   [(ovs-ofctl dump-ports br0 2; ovs-ofctl dump-ports br0 3) | STRIP_XIDS], [0],
 370   [OFPST_PORT reply: 1 ports
 371   port  2: rx pkts=0, bytes=0, drop=0, errs=0, frame=0, over=0, crc=0
 372            tx pkts=2, bytes=120, drop=0, errs=0, coll=0
 373 OFPST_PORT reply: 1 ports
 374   port  3: rx pkts=0, bytes=0, drop=0, errs=0, frame=0, over=0, crc=0
 375            tx pkts=18, bytes=1080, drop=0, errs=0, coll=0
 376 ])
 377
 378 # Check for the learning entry.
 379 ovs-appctl time/warp 1000
 380 AT_CHECK([ovs-ofctl dump-flows br0 | ofctl_strip | sort], [0],
 381 [[ n_packets=2, n_bytes=120, actions=load:0x3->NXM_NX_REG0[0..15],learn(table=0,idle_timeout=5,priority=65535,NXM_OF_ETH_SRC[],NXM_OF_VLAN_TCI[0..11],output:NXM_NX_REG0[0..15]),output:2
 382  n_packets=9, n_bytes=540, idle_timeout=5, priority=65535,vlan_tci=0x0000/0x0fff,dl_src=50:54:00:00:00:06 actions=output:3
 383 NXST_FLOW reply:
 384 ]])
 385 OVS_VSWITCHD_STOP
 386 AT_CLEANUP
 387
 388 # This test is much like the previous, but adds hard timeouts and sends
 389 # two different flows to the bridge. This tests that the statistics are
 390 # attributed correctly.
 391 AT_SETUP([learning action - self-modifying flow with hard_timeout])
 392 OVS_VSWITCHD_START
 393 ADD_OF_PORTS([br0], 1, 2, 3)
 394
 395 ovs-appctl time/stop
 396 # Set up flow table for TCPv4 port learning.
 397 AT_CHECK([[ovs-ofctl add-flow br0 'actions=load:3->NXM_NX_REG0[0..15],learn(table=0,hard_timeout=10,priority=65535,NXM_OF_ETH_SRC[],NXM_OF_VLAN_TCI[0..11],output:NXM_NX_REG0[0..15]),output:2']])
 398
 399 # Trace some packets arriving.  The particular packets don't matter.
 400 for i in `seq 1 10`; do
 401     ovs-appctl netdev-dummy/receive p1 'in_port(1),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=6,tos=0,ttl=64,frag=no),tcp(src=8,dst=9)'
 402     if [[ $i -eq 1 ]]; then
 403         sleep 1
 404     fi
 405     ovs-appctl time/warp 10
 406 done
 407
 408 # Trace some packets arriving.  This is is a different flow from the previous.
 409 # Note that we advance time by 2 second between each packet here.
 410 for i in `seq 1 10`; do
 411     ovs-appctl netdev-dummy/receive p1 'in_port(1),eth(src=50:54:00:00:00:06,dst=50:54:00:00:00:07),eth_type(0x0800),ipv4(src=192.168.0.1,dst=192.168.0.2,proto=6,tos=0,ttl=64,frag=no),tcp(src=8,dst=9)'
 412     # Note: hard_timeout should fire immediately after #6 packet.
 413     # #7 packet re-install the flow and the following 3 packets
 414     # (#8, #9, #10) use the flow.
 415     # it's difficult to predict the exact timing of rule expiry
 416     # because it's affected by flow dumper thread via udpif_dump_seq.
 417     # hard_timeout value for this test was chosen to overcome the uncertainty.
 418     #
 419     # receive #1  learn, install flow with hard_timeout=10
 420     #  sleep to ensure the flow installation
 421     #  (warp, timeout left 8s)
 422     # receive #2   the learned flow
 423     #  (warp, timeout left 6s)
 424     # receive #3
 425     #  (warp, timeout left 4s)
 426     # receive #4
 427     #  (warp, timeout left 2s)
 428     # receive #5
 429     #  (warp, timeout left 0s)
 430     #  NOTE: OVS does not consider this expired yet.  cf. rule_expire()
 431     # receive #6
 432     #  (warp, timeout left -2s)
 433     #  sleep to ensure flow expiration
 434     # receive #7  learn, install flow with hard_timeout=10
 435     #  sleep to ensure the flow installation
 436     #  (warp, timeout left 8s)
 437     # receive #8
 438     #  (warp, timeout left 6s)
 439     # receive #9
 440     #  (warp, timeout left 4s)
 441     # receive #10
 442     #  (warp, timeout left 2s)
 443     if [[ $i -eq 1 -o $i -eq 7 ]]; then
 444         sleep 1
 445     fi
 446     ovs-appctl time/warp 2000
 447     if [[ $i -eq 6 ]]; then
 448         sleep 1
 449     fi
 450 done
 451
 452 # Check that the first packet of each flow went out port 2 and the rest out
 453 # port 3.
 454 AT_CHECK(
 455   [(ovs-ofctl dump-ports br0 2; ovs-ofctl dump-ports br0 3) | STRIP_XIDS], [0],
 456   [OFPST_PORT reply: 1 ports
 457   port  2: rx pkts=0, bytes=0, drop=0, errs=0, frame=0, over=0, crc=0
 458            tx pkts=3, bytes=180, drop=0, errs=0, coll=0
 459 OFPST_PORT reply: 1 ports
 460   port  3: rx pkts=0, bytes=0, drop=0, errs=0, frame=0, over=0, crc=0
 461            tx pkts=17, bytes=1020, drop=0, errs=0, coll=0
 462 ])
 463
 464 # Check for the learning entry.
 465 ovs-appctl time/warp 1000
 466 sleep 1
 467 AT_CHECK([ovs-ofctl dump-flows br0 | ofctl_strip | sort], [0],
 468 [[ n_packets=3, n_bytes=180, actions=load:0x3->NXM_NX_REG0[0..15],learn(table=0,hard_timeout=10,priority=65535,NXM_OF_ETH_SRC[],NXM_OF_VLAN_TCI[0..11],output:NXM_NX_REG0[0..15]),output:2
 469  n_packets=3, n_bytes=180, hard_timeout=10, priority=65535,vlan_tci=0x0000/0x0fff,dl_src=50:54:00:00:00:06 actions=output:3
 470 NXST_FLOW reply:
 471 ]])
 472 OVS_VSWITCHD_STOP
 473 AT_CLEANUP
 474
 475 AT_SETUP([learning action - fin_timeout feature])
 476 # This is a totally artificial use of the "learn" action.  The only purpose
 477 # is to check that specifying fin_idle_timeout or fin_hard_timeout causes
 478 # a corresponding fin_timeout action to end up in the learned flows.
 479 OVS_VSWITCHD_START(
 480     [add-port br0 p1 -- set Interface p1 type=dummy ofport_request=1])
 481 AT_CHECK([[ovs-ofctl add-flow br0 'actions=learn(fin_hard_timeout=10, fin_idle_timeout=5, NXM_OF_ETH_DST[]=NXM_OF_ETH_SRC[], output:NXM_OF_IN_PORT[])']])
 482 AT_CHECK([ovs-appctl ofproto/trace ovs-dummy 'in_port(1),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], [ignore])
 483 AT_CHECK([ovs-ofctl dump-flows br0 table=1 | ofctl_strip], [0],
 484 [NXST_FLOW reply:
 485  table=1, dl_dst=50:54:00:00:00:05 actions=fin_timeout(idle_timeout=5,hard_timeout=10),output:1
 486 ])
 487 OVS_VSWITCHD_STOP
 488 AT_CLEANUP
 489
 490 AT_SETUP([learning action - delete_learned feature])
 491 OVS_VSWITCHD_START
 492
 493 # Add some initial flows and check that it was successful.
 494 AT_DATA([flows.txt], [dnl
 495                        reg0=0x1 actions=learn(delete_learned,cookie=0x123)
 496                        reg0=0x2 actions=learn(delete_learned,cookie=0x123)
 497 cookie=0x123, table=1, reg0=0x3 actions=drop
 498 cookie=0x123, table=1, reg0=0x4 actions=drop
 499 cookie=0x123, table=2, reg0=0x5 actions=drop
 500 cookie=0x234, table=1, reg0=0x6 actions=drop
 501 ])
 502 AT_CHECK([ovs-ofctl add-flows br0 flows.txt])
 503 AT_CHECK([ovs-ofctl dump-flows br0 | ofctl_strip | sort], [0], [dnl
 504  cookie=0x123, table=1, reg0=0x3 actions=drop
 505  cookie=0x123, table=1, reg0=0x4 actions=drop
 506  cookie=0x123, table=2, reg0=0x5 actions=drop
 507  cookie=0x234, table=1, reg0=0x6 actions=drop
 508  reg0=0x1 actions=learn(table=1,delete_learned,cookie=0x123)
 509  reg0=0x2 actions=learn(table=1,delete_learned,cookie=0x123)
 510 NXST_FLOW reply:
 511 ])
 512
 513 # Delete one of the learn actions.  The learned flows should stay, since there
 514 # is another learn action with the identical target.
 515 AT_CHECK([ovs-ofctl del-flows br0 'table=0 reg0=1'])
 516 AT_CHECK([ovs-ofctl dump-flows br0 | ofctl_strip | sort], [0], [dnl
 517  cookie=0x123, table=1, reg0=0x3 actions=drop
 518  cookie=0x123, table=1, reg0=0x4 actions=drop
 519  cookie=0x123, table=2, reg0=0x5 actions=drop
 520  cookie=0x234, table=1, reg0=0x6 actions=drop
 521  reg0=0x2 actions=learn(table=1,delete_learned,cookie=0x123)
 522 NXST_FLOW reply:
 523 ])
 524
 525 # Change the flow with the learn action by adding a second action.  The learned
 526 # flows should stay because the learn action is still there.
 527 AT_CHECK([ovs-ofctl mod-flows br0 'table=0 reg0=2 actions=output:1,learn(delete_learned,cookie=0x123)'])
 528 AT_CHECK([ovs-ofctl dump-flows br0 | ofctl_strip | sort], [0], [dnl
 529  cookie=0x123, table=1, reg0=0x3 actions=drop
 530  cookie=0x123, table=1, reg0=0x4 actions=drop
 531  cookie=0x123, table=2, reg0=0x5 actions=drop
 532  cookie=0x234, table=1, reg0=0x6 actions=drop
 533  reg0=0x2 actions=output:1,learn(table=1,delete_learned,cookie=0x123)
 534 NXST_FLOW reply:
 535 ])
 536
 537 # Change the flow with the learn action by replacing its learn action by one
 538 # with a different target.  The (previous) learned flows disappear.
 539 AT_CHECK([ovs-ofctl mod-flows br0 'table=0 reg0=2 actions=learn(delete_learned,cookie=0x234)'])
 540 AT_CHECK([ovs-ofctl dump-flows br0 | ofctl_strip | sort], [0], [dnl
 541  cookie=0x123, table=2, reg0=0x5 actions=drop
 542  cookie=0x234, table=1, reg0=0x6 actions=drop
 543  reg0=0x2 actions=learn(table=1,delete_learned,cookie=0x234)
 544 NXST_FLOW reply:
 545 ])
 546
 547 # Use add-flow to replace the flow with the learn action by one with the
 548 # same learn action and an extra action.  The (new) learned flow remains.
 549 AT_CHECK([ovs-ofctl add-flow br0 'table=0 reg0=2 actions=learn(delete_learned,cookie=0x234),output:2'])
 550 AT_CHECK([ovs-ofctl dump-flows br0 | ofctl_strip | sort], [0], [dnl
 551  cookie=0x123, table=2, reg0=0x5 actions=drop
 552  cookie=0x234, table=1, reg0=0x6 actions=drop
 553  reg0=0x2 actions=learn(table=1,delete_learned,cookie=0x234),output:2
 554 NXST_FLOW reply:
 555 ])
 556
 557 # Delete the flow with the learn action.  The learned flow disappears too.
 558 AT_CHECK([ovs-ofctl del-flows br0 table=0])
 559 AT_CHECK([ovs-ofctl dump-flows br0 | ofctl_strip | sort], [0], [dnl
 560  cookie=0x123, table=2, reg0=0x5 actions=drop
 561 NXST_FLOW reply:
 562 ])
 563
 564 # Add a new set of flows to check on a corner case: the learned flows
 565 # contain their own learn actions which cascade to further deletions.
 566 # This can't happen if the learned flows were actually created by a
 567 # learn action, since the learn action has very restricted action
 568 # support, but there's no restriction that the deleted flows were
 569 # created by a learn action.
 570 AT_DATA([flows.txt], [dnl
 571                        reg0=0x1 actions=learn(table=1,delete_learned,cookie=0x123)
 572                        reg0=0x2 actions=learn(table=2,delete_learned,cookie=0x234)
 573 cookie=0x123, table=1, reg0=0x3 actions=learn(table=3,delete_learned,cookie=0x345)
 574 cookie=0x234, table=2, reg0=0x3 actions=learn(table=4,delete_learned,cookie=0x456)
 575 cookie=0x345, table=3, reg0=0x4 actions=learn(table=5,delete_learned,cookie=0x567)
 576 cookie=0x456, table=4, reg0=0x5 actions=learn(table=5,delete_learned,cookie=0x567)
 577 cookie=0x567, table=5, reg0=0x6 actions=drop
 578 cookie=0x567, table=5, reg0=0x7 actions=drop
 579 cookie=0x567, table=5, reg0=0x8 actions=drop
 580 ])
 581 AT_CHECK([ovs-ofctl del-flows br0])
 582 AT_CHECK([ovs-ofctl add-flows br0 flows.txt])
 583 AT_CHECK([ovs-ofctl dump-flows br0 | ofctl_strip | sort], [0], [dnl
 584  cookie=0x123, table=1, reg0=0x3 actions=learn(table=3,delete_learned,cookie=0x345)
 585  cookie=0x234, table=2, reg0=0x3 actions=learn(table=4,delete_learned,cookie=0x456)
 586  cookie=0x345, table=3, reg0=0x4 actions=learn(table=5,delete_learned,cookie=0x567)
 587  cookie=0x456, table=4, reg0=0x5 actions=learn(table=5,delete_learned,cookie=0x567)
 588  cookie=0x567, table=5, reg0=0x6 actions=drop
 589  cookie=0x567, table=5, reg0=0x7 actions=drop
 590  cookie=0x567, table=5, reg0=0x8 actions=drop
 591  reg0=0x1 actions=learn(table=1,delete_learned,cookie=0x123)
 592  reg0=0x2 actions=learn(table=2,delete_learned,cookie=0x234)
 593 NXST_FLOW reply:
 594 ])
 595
 596 # Deleting the flow with reg0=1 should cascade to delete a few levels
 597 # of learned flows, but the ones with cookie=0x567 stick around
 598 # because of the flow with cookie=0x456.
 599 AT_CHECK([ovs-ofctl del-flows br0 'table=0 reg0=1'])
 600 AT_CHECK([ovs-ofctl dump-flows br0 | ofctl_strip | sort], [0], [dnl
 601  cookie=0x234, table=2, reg0=0x3 actions=learn(table=4,delete_learned,cookie=0x456)
 602  cookie=0x456, table=4, reg0=0x5 actions=learn(table=5,delete_learned,cookie=0x567)
 603  cookie=0x567, table=5, reg0=0x6 actions=drop
 604  cookie=0x567, table=5, reg0=0x7 actions=drop
 605  cookie=0x567, table=5, reg0=0x8 actions=drop
 606  reg0=0x2 actions=learn(table=2,delete_learned,cookie=0x234)
 607 NXST_FLOW reply:
 608 ])
 609
 610 # Deleting the flow with reg0=2 should cascade to delete all the rest:
 611 AT_CHECK([ovs-ofctl del-flows br0 'table=0 reg0=2'])
 612 AT_CHECK([ovs-ofctl dump-flows br0 | ofctl_strip | sort], [0], [dnl
 613 NXST_FLOW reply:
 614 ])
 615 OVS_VSWITCHD_STOP
 616 AT_CLEANUP