public boolean remove(DeviceId deviceId, FlowEntry rule) {
try {
return getFlowEntriesInternal(deviceId, rule.id()).remove(rule);
} finally {
lastUpdateTimes.put(deviceId, System.currentTimeMillis());
}
}
private FlowRuleEvent addOrUpdateFlowRuleInternal(FlowEntry rule) {
// check if this new rule is an update to an existing entry
StoredFlowEntry stored = flowTable.getFlowEntry(rule);
if (stored != null) {
stored.setBytes(rule.bytes());
stored.setLife(rule.life());
stored.setPackets(rule.packets());
if (stored.state() == FlowEntryState.PENDING_ADD) {
stored.setState(FlowEntryState.ADDED);
return new FlowRuleEvent(Type.RULE_ADDED, rule);
}
return new FlowRuleEvent(Type.RULE_UPDATED, rule);
}
// TODO: Confirm if this behavior is correct. See SimpleFlowRuleStore
// TODO: also update backup if the behavior is correct.
flowTable.add(rule);
return null;
}
@Override
public FlowRuleEvent addOrUpdateFlowRule(FlowEntry rule) {
NodeId master = mastershipService.getMasterFor(rule.deviceId());
if (Objects.equal(local, master)) {
return addOrUpdateFlowRuleInternal(rule);
}
log.warn("Tried to update FlowRule {} state," + " while the Node was not the master.", rule);
return null;
}
// send openflow flow stats request message with getting the specific flow entry(fe) to a given
// switch sw
private void ofFlowStatsRequestFlowSend(FlowEntry fe) {
// set find match
Match match =
FlowModBuilder.builder(fe, sw.factory(), Optional.empty(), Optional.of(driverService))
.buildMatch();
// set find tableId
TableId tableId = TableId.of(fe.tableId());
// set output port
Instruction ins =
fe.treatment()
.allInstructions()
.stream()
.filter(i -> (i.type() == Instruction.Type.OUTPUT))
.findFirst()
.orElse(null);
OFPort ofPort = OFPort.NO_MASK;
if (ins != null) {
Instructions.OutputInstruction out = (Instructions.OutputInstruction) ins;
ofPort = OFPort.of((int) ((out.port().toLong())));
}
OFFlowStatsRequest request =
sw.factory()
.buildFlowStatsRequest()
.setMatch(match)
.setTableId(tableId)
.setOutPort(ofPort)
.build();
synchronized (this) {
if (getFlowMissingXid() != NO_FLOW_MISSING_XID) {
log.debug(
"ofFlowStatsRequestFlowSend: previous FlowStatsRequestAll does not be processed yet,"
+ " set no flow missing xid anyway, for {}",
sw.getStringId());
setFlowMissingXid(NO_FLOW_MISSING_XID);
}
sw.sendMsg(request);
}
}
/**
* Creates a new typed flow entry with the given flow entry fe.
*
* @param fe flow entry
*/
public static TypedStoredFlowEntry newTypedStoredFlowEntry(FlowEntry fe) {
if (fe == null) {
return null;
}
long life = fe.life();
if (life >= LONG_POLL_INTERVAL) {
return new DefaultTypedFlowEntry(fe, TypedStoredFlowEntry.FlowLiveType.LONG_FLOW);
} else if (life >= MID_POLL_INTERVAL) {
return new DefaultTypedFlowEntry(fe, TypedStoredFlowEntry.FlowLiveType.MID_FLOW);
} else if (life >= CAL_AND_POLL_INTERVAL) {
return new DefaultTypedFlowEntry(fe, TypedStoredFlowEntry.FlowLiveType.SHORT_FLOW);
} else if (life >= 0) {
return new DefaultTypedFlowEntry(fe, TypedStoredFlowEntry.FlowLiveType.IMMEDIATE_FLOW);
} else { // life < 0
return new DefaultTypedFlowEntry(fe, TypedStoredFlowEntry.FlowLiveType.UNKNOWN_FLOW);
}
}
/**
* add or update typed flow entry from flow entry into the internal flow table.
*
* @param flowEntries the flow entries
*/
public synchronized void addOrUpdateFlows(FlowEntry... flowEntries) {
for (FlowEntry fe : flowEntries) {
// check if this new rule is an update to an existing entry
TypedStoredFlowEntry stored = deviceFlowTable.getFlowEntry(fe);
if (stored != null) {
// duplicated flow entry is collected!, just skip
if (fe.bytes() == stored.bytes()
&& fe.packets() == stored.packets()
&& fe.life() == stored.life()) {
log.debug(
"addOrUpdateFlows:, FlowId="
+ Long.toHexString(fe.id().value())
+ ",is DUPLICATED stats collection, just skip."
+ " AdaptiveStats collection thread for {}",
sw.getStringId());
// FIXME modification of "stored" flow entry outside of store
stored.setLastSeen();
continue;
} else if (fe.life() < stored.life()) {
// Invalid updates the stats values, i.e., bytes, packets, durations ...
log.debug(
"addOrUpdateFlows():"
+ " Invalid Flow Update! The new life is SMALLER than the previous one, jus skip."
+ " new flowId="
+ Long.toHexString(fe.id().value())
+ ", old flowId="
+ Long.toHexString(stored.id().value())
+ ", new bytes="
+ fe.bytes()
+ ", old bytes="
+ stored.bytes()
+ ", new life="
+ fe.life()
+ ", old life="
+ stored.life()
+ ", new lastSeen="
+ fe.lastSeen()
+ ", old lastSeen="
+ stored.lastSeen());
// go next
// FIXME modification of "stored" flow entry outside of store
stored.setLastSeen();
continue;
}
// update now
// FIXME modification of "stored" flow entry outside of store
stored.setLife(fe.life());
stored.setPackets(fe.packets());
stored.setBytes(fe.bytes());
stored.setLastSeen();
if (stored.state() == FlowEntry.FlowEntryState.PENDING_ADD) {
// flow is really RULE_ADDED
stored.setState(FlowEntry.FlowEntryState.ADDED);
}
// flow is RULE_UPDATED, skip adding and just updating flow live table
// deviceFlowTable.calAndSetFlowLiveType(stored);
continue;
}
// add new flow entry, we suppose IMMEDIATE_FLOW
TypedStoredFlowEntry newFlowEntry =
new DefaultTypedFlowEntry(fe, FlowLiveType.IMMEDIATE_FLOW);
deviceFlowTable.addWithCalAndSetFlowLiveType(newFlowEntry);
}
}
public TypedFlowEntryWithLoad(ConnectPoint cp, FlowEntry fe) {
this.cp = cp;
this.tfe = newTypedStoredFlowEntry(fe);
this.load = new DefaultLoad(fe.bytes(), 0, typedPollInterval(this.tfe));
}
@Override
public synchronized void updateFlowStatistic(FlowEntry rule) {
ConnectPoint cp = buildConnectPoint(rule);
if (cp == null) {
return;
}
Set<FlowEntry> curr = current.get(cp);
if (curr == null) {
addFlowStatistic(rule);
} else {
Optional<FlowEntry> f = curr.stream().filter(c -> rule.equals(c)).findAny();
if (f.isPresent() && rule.bytes() < f.get().bytes()) {
log.debug(
"DistributedFlowStatisticStore:updateFlowStatistic():"
+ " Invalid Flow Update! Will be removed!!"
+ " curr flowId="
+ Long.toHexString(rule.id().value())
+ ", prev flowId="
+ Long.toHexString(f.get().id().value())
+ ", curr bytes="
+ rule.bytes()
+ ", prev bytes="
+ f.get().bytes()
+ ", curr life="
+ rule.life()
+ ", prev life="
+ f.get().life()
+ ", curr lastSeen="
+ rule.lastSeen()
+ ", prev lastSeen="
+ f.get().lastSeen());
// something is wrong! invalid flow entry, so delete it
removeFlowStatistic(rule);
return;
}
Set<FlowEntry> prev = previous.get(cp);
if (prev == null) {
prev = new HashSet<>();
previous.put(cp, prev);
}
// previous one is exist
if (f.isPresent()) {
// remove old one and add new one
prev.remove(rule);
if (!prev.add(f.get())) {
log.debug(
"DistributedFlowStatisticStore:updateFlowStatistic():"
+ " flowId={}, add failed into previous.",
Long.toHexString(rule.id().value()));
}
}
// remove old one and add new one
curr.remove(rule);
if (!curr.add(rule)) {
log.debug(
"DistributedFlowStatisticStore:updateFlowStatistic():"
+ " flowId={}, add failed into current.",
Long.toHexString(rule.id().value()));
}
}
}
public void add(FlowEntry rule) {
getFlowEntriesInternal(rule.deviceId(), rule.id()).add((StoredFlowEntry) rule);
lastUpdateTimes.put(rule.deviceId(), System.currentTimeMillis());
}
private FlowRuleEvent removeFlowRuleInternal(FlowEntry rule) {
final DeviceId deviceId = rule.deviceId();
// This is where one could mark a rule as removed and still keep it in the store.
final boolean removed = flowTable.remove(deviceId, rule); // flowEntries.remove(deviceId, rule);
return removed ? new FlowRuleEvent(RULE_REMOVED, rule) : null;
}
@Override
public FlowRuleEvent removeFlowRule(FlowEntry rule) {
final DeviceId deviceId = rule.deviceId();
NodeId master = mastershipService.getMasterFor(deviceId);
if (Objects.equal(local, master)) {
// bypass and handle it locally
return removeFlowRuleInternal(rule);
}
if (master == null) {
log.warn("Failed to removeFlowRule: No master for {}", deviceId);
// TODO: revisit if this should be null (="no-op") or Exception
return null;
}
log.trace(
"Forwarding removeFlowRule to {}, which is the master for device {}", master, deviceId);
return Futures.get(
clusterCommunicator.sendAndReceive(
rule, REMOVE_FLOW_ENTRY, SERIALIZER::encode, SERIALIZER::decode, master),
FLOW_RULE_STORE_TIMEOUT_MILLIS,
TimeUnit.MILLISECONDS,
RuntimeException.class);
}
