@Override
@LogMessageDoc(
level = "ERROR",
message = "Unexpected decision made for this packet-in={}",
explanation =
"An unsupported PacketIn decision has been " + "passed to the flow programming component",
recommendation = LogMessageDoc.REPORT_CONTROLLER_BUG)
public Command processPacketInMessage(
IOFSwitch sw, OFPacketIn pi, IRoutingDecision decision, FloodlightContext cntx) {
Ethernet eth =
IFloodlightProviderService.bcStore.get(cntx, IFloodlightProviderService.CONTEXT_PI_PAYLOAD);
// If a decision has been made we obey it
// otherwise we just forward
if (decision != null) {
if (log.isTraceEnabled()) {
log.trace(
"Forwaring decision={} was made for PacketIn={}",
decision.getRoutingAction().toString(),
pi);
}
switch (decision.getRoutingAction()) {
case NONE:
// don't do anything
return Command.CONTINUE;
case FORWARD_OR_FLOOD:
case FORWARD:
doForwardFlow(sw, pi, cntx, false);
return Command.CONTINUE;
case MULTICAST:
// treat as broadcast
doFlood(sw, pi, cntx);
return Command.CONTINUE;
case DROP:
doDropFlow(sw, pi, decision, cntx);
return Command.CONTINUE;
default:
log.error(
"Unexpected decision made for this packet-in={}", pi, decision.getRoutingAction());
return Command.CONTINUE;
}
} else {
if (log.isTraceEnabled()) {
log.trace("No decision was made for PacketIn={}, forwarding", pi);
}
if (eth.isBroadcast() || eth.isMulticast()) {
// For now we treat multicast as broadcast
doFlood(sw, pi, cntx);
} else {
doForwardFlow(sw, pi, cntx, false);
}
}
return Command.CONTINUE;
}
protected List<ICounter> getPacketInCounters(IOFSwitch sw, OFMessage m, Ethernet eth) {
/* If possible, find and return counters for this tuple */
String countersKey = this.getCountersKey(sw, m, eth);
List<ICounter> counters = this.pktinCounters.get(countersKey);
if (counters != null) {
return counters;
}
/*
* Create the required counters
*/
counters = new ArrayList<ICounter>();
/* values for names */
short port = ((OFPacketIn) m).getInPort();
short l3type = eth.getEtherType();
String switchIdHex = sw.getStringId();
String etherType = String.format("%04x", eth.getEtherType());
String packetName = m.getType().toClass().getName();
packetName = packetName.substring(packetName.lastIndexOf('.') + 1);
// L2 Type
String l2Type = null;
if (eth.isBroadcast()) {
l2Type = BROADCAST;
} else if (eth.isMulticast()) {
l2Type = MULTICAST;
} else {
l2Type = UNICAST;
}
/*
* Use alias for L3 type
* Valid EtherType must be greater than or equal to 0x0600
* It is V1 Ethernet Frame if EtherType < 0x0600
*/
if (l3type < 0x0600) {
etherType = "0599";
}
if (TypeAliases.l3TypeAliasMap != null && TypeAliases.l3TypeAliasMap.containsKey(etherType)) {
etherType = TypeAliases.l3TypeAliasMap.get(etherType);
} else {
etherType = "L3_" + etherType;
}
// overall controller packet counter names
String controllerCounterName = CounterStore.createCounterName(CONTROLLER_NAME, -1, packetName);
counters.add(createCounter(controllerCounterName, CounterType.LONG));
String switchCounterName = CounterStore.createCounterName(switchIdHex, -1, packetName);
counters.add(createCounter(switchCounterName, CounterType.LONG));
String portCounterName = CounterStore.createCounterName(switchIdHex, port, packetName);
counters.add(createCounter(portCounterName, CounterType.LONG));
// L2 counter names
String controllerL2CategoryCounterName =
CounterStore.createCounterName(CONTROLLER_NAME, -1, packetName, l2Type, NetworkLayer.L2);
counters.add(createCounter(controllerL2CategoryCounterName, CounterType.LONG));
String switchL2CategoryCounterName =
CounterStore.createCounterName(switchIdHex, -1, packetName, l2Type, NetworkLayer.L2);
counters.add(createCounter(switchL2CategoryCounterName, CounterType.LONG));
String portL2CategoryCounterName =
CounterStore.createCounterName(switchIdHex, port, packetName, l2Type, NetworkLayer.L2);
counters.add(createCounter(portL2CategoryCounterName, CounterType.LONG));
// L3 counter names
String controllerL3CategoryCounterName =
CounterStore.createCounterName(CONTROLLER_NAME, -1, packetName, etherType, NetworkLayer.L3);
counters.add(createCounter(controllerL3CategoryCounterName, CounterType.LONG));
String switchL3CategoryCounterName =
CounterStore.createCounterName(switchIdHex, -1, packetName, etherType, NetworkLayer.L3);
counters.add(createCounter(switchL3CategoryCounterName, CounterType.LONG));
String portL3CategoryCounterName =
CounterStore.createCounterName(switchIdHex, port, packetName, etherType, NetworkLayer.L3);
counters.add(createCounter(portL3CategoryCounterName, CounterType.LONG));
// L4 counters
if (l3type == (short) 0x0800) {
// resolve protocol alias
IPv4 ipV4 = (IPv4) eth.getPayload();
String l4name = String.format("%02x", ipV4.getProtocol());
if (TypeAliases.l4TypeAliasMap != null && TypeAliases.l4TypeAliasMap.containsKey(l4name)) {
l4name = TypeAliases.l4TypeAliasMap.get(l4name);
} else {
l4name = "L4_" + l4name;
}
// create counters
String controllerL4CategoryCounterName =
CounterStore.createCounterName(CONTROLLER_NAME, -1, packetName, l4name, NetworkLayer.L4);
counters.add(createCounter(controllerL4CategoryCounterName, CounterType.LONG));
String switchL4CategoryCounterName =
CounterStore.createCounterName(switchIdHex, -1, packetName, l4name, NetworkLayer.L4);
counters.add(createCounter(switchL4CategoryCounterName, CounterType.LONG));
String portL4CategoryCounterName =
CounterStore.createCounterName(switchIdHex, port, packetName, l4name, NetworkLayer.L4);
counters.add(createCounter(portL4CategoryCounterName, CounterType.LONG));
}
/* Add to map and return */
this.pktinCounters.putIfAbsent(countersKey, counters);
return this.pktinCounters.get(countersKey);
}