/*
* @return true if slice exists, otherwise false
* @param sliceName name of slice to check for existance
*/
public static boolean doesSliceExist(String sliceName) {
List<String> slices = new ArrayList<String>();
try {
slices = FVConfig.getAllSlices();
} catch (ConfigError e) {
e.printStackTrace();
}
return slices.contains(sliceName);
}
@Override
public Map<String, String> getSliceInfo(String sliceName)
throws PermissionDeniedException, SliceNotFound {
/*
* relaxed security -- anyone can read slice info for now String user =
* APIUserCred.getUserName(); if (!FVConfig.isSupervisor(user) &&
* !APIAuth.transitivelyCreated(user, sliceName)) throw new
* PermissionDeniedException(
* "not superuser or transitive slice creator");
*/
if (!(doesSliceExist(sliceName))) {
throw new SliceNotFound("Slice does not exist: " + sliceName);
}
HashMap<String, String> map = new HashMap<String, String>();
synchronized (FVConfig.class) {
try {
map.put("contact_email", FVConfig.getSliceEmail(sliceName));
map.put("controller_hostname", FVConfig.getSliceHost(sliceName));
map.put("controller_port", String.valueOf(FVConfig.getSlicePort(sliceName)));
map.put("creator", FVConfig.getSliceCreator(sliceName));
map.put("drop_policy", FVConfig.getSlicePolicy(sliceName));
} catch (ConfigError e) {
FVLog.log(LogLevel.CRIT, null, "malformed slice: " + e);
e.printStackTrace();
}
}
long dpid;
int connection = 1;
// TODO: come back an architect this so we can walk the list of slicers,
// not the list of classifiers, and then slicers
for (Iterator<FVEventHandler> it = FlowVisor.getInstance().getHandlersCopy().iterator();
it.hasNext(); ) {
FVEventHandler eventHandler = it.next();
if (eventHandler instanceof FVClassifier) {
FVClassifier classifier = (FVClassifier) eventHandler;
if (!classifier.isIdentified()) // only print switches have have
// been identified
continue;
dpid = classifier.getDPID();
FVSlicer fvSlicer = classifier.getSlicerByName(sliceName);
if (fvSlicer != null) {
map.put(
"connection_" + connection++,
FlowSpaceUtil.dpidToString(dpid) + "-->" + fvSlicer.getConnectionName());
}
}
}
return map;
}
@Override
public Collection<String> listSlices() throws PermissionDeniedException {
/*
* relaxed security; anyone can get a list of slices if
* (!FVConfig.isSupervisor(APIUserCred.getUserName())) throw new
* PermissionDeniedException( "listSlices only available to root");
*/
List<String> slices = null;
synchronized (FVConfig.class) {
try {
// this is synchronized
List<String> entries = FVConfig.getAllSlices();
slices = new LinkedList<String>(entries);
} catch (ConfigError e) {
e.printStackTrace();
throw new RuntimeException("wtf!?: no SLICES subdir found in config");
}
}
return slices;
}
/**
* Create a new slice (without flowspace)
*
* <p>Slices that contain the field separator are rewritten with underscores
*
* @param sliceName Cannot contain FVConfig.FS == '!'
* @param passwd Cleartext! FIXME
* @param controller_url Reference controller pseudo-url, e.g., tcp:hostname[:port]
* @param slice_email As a contract for the slice
* @return success
* @throws InvalidSliceName
* @throws PermissionDeniedException
* @throws DuplicateControllerException
*/
@Override
public Boolean createSlice(
String sliceName,
String passwd,
String controller_url,
String drop_policy,
String slice_email)
throws MalformedControllerURL, InvalidSliceName, InvalidDropPolicy, PermissionDeniedException,
DuplicateControllerException {
// FIXME: make sure this user has perms to do this OP
// for now, all slices can create other slices
// FIXME: for now, only handle tcp, not ssl controller url
String[] list = controller_url.split(":");
if (!FVConfig.isSupervisor(APIUserCred.getUserName()))
throw new PermissionDeniedException("only superusers can create new slices");
if (list.length < 2)
throw new MalformedControllerURL(
"controller url needs to be of the form "
+ "proto:hostname[:port], e.g., tcp:yourhost.foo.com:6633, not: "
+ controller_url);
if (!list[0].equals("tcp"))
throw new MalformedControllerURL(
"Flowvisor currently only supports 'tcp' proto, not: " + list[0]);
int controller_port;
if (list.length >= 3) controller_port = Integer.valueOf(list[2]);
else controller_port = FVConfig.OFP_TCP_PORT;
// createSlice is synchronized()
if (drop_policy.equals("")) drop_policy = "exact";
else if (!drop_policy.equals("exact") && !drop_policy.equals("rule"))
throw new InvalidDropPolicy(
"Flowvisor currently supports an 'exact'" + " or a 'rule' based drop policy");
// We need to make sure this slice doesn't already exist
List<String> slices = null;
synchronized (FVConfig.class) {
try {
slices = FVConfig.getAllSlices();
} catch (ConfigError e) {
e.printStackTrace();
throw new RuntimeException("no SLICES subdir found in config");
}
for (Iterator<String> sliceIter = slices.iterator(); sliceIter.hasNext(); ) {
String existingSlice = sliceIter.next();
if (sliceName.equals(existingSlice)) {
throw new PermissionDeniedException("Cannot create slice with existing name.");
}
}
}
FVConfig.createSlice(
sliceName,
list[1],
controller_port,
drop_policy,
passwd,
slice_email,
APIUserCred.getUserName());
FlowVisor.getInstance().checkPointConfig();
return true;
}
