def addExcludedIp(self,ipStr,comment):
'''
Add an IP to the exclusion list
'''
with MutexStore.getObjectLock(self.getLockIdentifier()):
#Check is not already allocated
if not self.__isIpAvailable(ipStr):
raise Exception("Ip already allocated or marked as excluded")
#then forbidd
if not IP4Utils.isIpInRange(ipStr,self.startIp,self.endIp):
raise Exception("Ip is not in range")
newIp = Ip4Slot.excludedIpFactory(self,ipStr,comment)
self.ips.add(newIp)
#if was nextSlot shift
if self.nextAvailableIp == ipStr:
try:
it= IP4Utils.getIpIterator(self.nextAvailableIp,self.endIp,self.netMask)
while True:
ip = it.getNextIp()
if self.__isIpAvailable(ip):
break
self.nextAvailableIp = ip
except Exception as e:
self.nextAvailableIp = None
self.autoSave()
def allocateIp(self):
'''
Allocates an IP address of the range
'''
with MutexStore.getObjectLock(self.getLockIdentifier()):
#Implements first fit algorithm
if self.nextAvailableIp == None:
raise Exception("Could not allocate any IP")
newIp = Ip4Slot.ipFactory(self,self.nextAvailableIp)
self.ips.add(newIp)
#Try to find new slot
try:
it= IP4Utils.getIpIterator(self.nextAvailableIp,self.endIp,self.netMask)
while True:
ip = it.getNextIp()
if self.__isIpAvailable(ip):
break
self.nextAvailableIp = ip
except Exception as e:
self.nextAvailableIp = None
self.autoSave()
return newIp
def constructor(ipRange,ip,excluded,comment="",save=True): self = Ip4Slot() try: #Check IP IP4Utils.checkValidIp(ip) self.ip = ip self.isExcluded = excluded self.ipRange = ipRange self.comment = comment self.doSave = save if save: self.save() except Exception as e: #self.delete() raise e return self
def rebasePointer(self):
'''Used when pointer has lost track mostly due to bug #'''
with MutexStore.getObjectLock(self.getLockIdentifier()):
print "Rebasing pointer of range: "+str(self.id)
print "Current pointer point to: "+self.nextAvailableIp
try:
it= IP4Utils.getIpIterator(self.startIp,self.endIp,self.netMask)
while True:
ip = it.getNextIp()
if self.__isIpAvailable(ip):
break
self.nextAvailableIp = ip
except Exception as e:
self.nextAvailableIp = None
print "Pointer will be rebased to: "+self.nextAvailableIp
self.save()
def releaseIp(self,ipObj):
'''
Releases an IP address of the range (but it does not destroy the object!!)
'''
with MutexStore.getObjectLock(self.getLockIdentifier()):
ipStr = ipObj.getIp()
if not self.ips.filter(ip=ipStr,isExcluded=False).count() > 0:
raise Exception("Cannot release Ip %s. Reason may be is unallocated or is an excluded Ip",ipStr)
self.ips.remove(ipObj)
#Determine new available Ip
if not self.nextAvailableIp == None:
if IP4Utils.compareIps(ipStr,self.nextAvailableIp) > 0:
#Do nothing
pass
else:
self.nextAvailableIp = ipStr
else:
#No more gaps
self.nextAvailableIp = ipStr
self.autoSave()
def removeExcludedIp(self,ipObj):
'''
Deletes an IP from the exclusion list (but it does not destroy the object!!)
'''
with MutexStore.getObjectLock(self.getLockIdentifier()):
ipStr = ipObj.getIp()
if not self.ips.get(ip=ipStr).isExcludedIp():
raise Exception("Cannot release Ip. Reason may be is unallocated or is not excluded Ip")
self.ips.remove(ipObj)
#Determine new available Ip
if not self.nextAvailableIp == None:
if IP4Utils.compareIps(ipStr,self.nextAvailableIp) > 0:
#Do nothing
pass
else:
self.nextAvailableIp = ipStr
else:
#No more gaps
self.nextAvailableIp = ipStr
self.autoSave()
def constructor(name,startIp,endIp,netmask,gw,dns1,dns2,isGlobal=True,save=True): self = Ip4Range() try: #Default constructor IP4Utils.checkValidIp(startIp) IP4Utils.checkValidIp(endIp) IP4Utils.checkValidNetmask(netmask) IP4Utils.checkValidIp(gw) IP4Utils.checkValidIp(dns1) if not dns2 == "": IP4Utils.checkValidIp(dns2) self.name = name self.isGlobal= isGlobal self.startIp = startIp self.endIp = endIp self.netMask = netmask self.gw = gw self.dns1 = dns1 if not dns2 == "": self.dns2 = dns2 #Create an iterator it= IP4Utils.getIpIterator(self.startIp,self.endIp,self.netMask) self.nextAvailableIp = it.getNextIp() #Number of Slots try: self.numberOfSlots = IP4Utils.getNumberOfSlotsInRange(startIp,endIp,netmask) except Exception as e: print "Exception doing slot calculation"+str(e) self.numberOfSlots = -1 self.doSave = save if save: self.save() except Exception as e: #self.delete() raise e return self
def __setNetmask(self, value):
IP4Utils.checkValidNetmask(value)
self.netMask = value
self.autoSave()
def __setEndIp(self, value):
IP4Utils.checkValidIp(value)
self.endIp = value
self.autoSave()
def __setStartIp(self, value):
IP4Utils.checkValidIp(value)
self.startIp = value
self.autoSave()
