import auxiliary_functions as af
import json
import logging
-from netaddr import IPNetwork, IPSet, IPRange, all_matching_cidrs
+from netaddr import IPNetwork, IPAddress
HTTP_Bad_Request = 400
HTTP_Unauthorized = 401
'''
#initialization
self.net_vlan_range = vlan_range
- self.net_vlan_usedlist = None
- self.net_vlan_lastused = self.net_vlan_range[0] -1
+ self.vlan_config = {}
self.debug=debug
if logger_name:
self.logger_name = logger_name
else:
return json.dumps(out)
- def __get_used_net_vlan(self):
+ def __get_used_net_vlan(self, region=None):
#get used from database if needed
+ vlan_region = self.vlan_config[region]
try:
- cmd = "SELECT vlan FROM nets WHERE vlan>='%s' ORDER BY vlan LIMIT 25" % self.net_vlan_lastused
+ cmd = "SELECT vlan FROM nets WHERE vlan>='{}' and region{} ORDER BY vlan LIMIT 25".format(
+ vlan_region["lastused"], "='"+region+"'" if region else " is NULL")
with self.con:
self.cur = self.con.cursor()
self.logger.debug(cmd)
self.cur.execute(cmd)
vlan_tuple = self.cur.fetchall()
- #convert a tuple of tuples in a list of numbers
- self.net_vlan_usedlist = []
+ # convert a tuple of tuples in a list of numbers
+ vlan_region["usedlist"] = []
for k in vlan_tuple:
- self.net_vlan_usedlist.append(k[0])
- return 0
+ vlan_region["usedlist"].append(k[0])
except (mdb.Error, AttributeError) as e:
return self.format_error(e, "get_free_net_vlan", cmd)
- def get_free_net_vlan(self):
+ def get_free_net_vlan(self, region=None):
'''obtain a vlan not used in any net'''
-
+ if region not in self.vlan_config:
+ self.vlan_config[region] = {
+ "usedlist": None,
+ "lastused": self.net_vlan_range[0] - 1
+ }
+ vlan_region = self.vlan_config[region]
+
while True:
- self.logger.debug("net_vlan_lastused:%d net_vlan_range:%d-%d net_vlan_usedlist:%s",
- self.net_vlan_lastused, self.net_vlan_range[0], self.net_vlan_range[1], str(self.net_vlan_usedlist))
- self.net_vlan_lastused += 1
- if self.net_vlan_lastused == self.net_vlan_range[1]:
- #start from the begining
- self.net_vlan_lastused = self.net_vlan_range[0]
- self.net_vlan_usedlist = None
- if self.net_vlan_usedlist is None \
- or (len(self.net_vlan_usedlist)>0 and self.net_vlan_lastused >= self.net_vlan_usedlist[-1] and len(self.net_vlan_usedlist)==25):
- r = self.__get_used_net_vlan()
- if r<0: return r
- self.logger.debug("new net_vlan_usedlist %s", str(self.net_vlan_usedlist))
- if self.net_vlan_lastused in self.net_vlan_usedlist:
+ self.logger.debug("get_free_net_vlan() region[{}]={}, net_vlan_range:{}-{} ".format(region, vlan_region,
+ self.net_vlan_range[0], self.net_vlan_range[1]))
+ vlan_region["lastused"] += 1
+ if vlan_region["lastused"] == self.net_vlan_range[1]:
+ # start from the begining
+ vlan_region["lastused"] = self.net_vlan_range[0]
+ vlan_region["usedlist"] = None
+ if vlan_region["usedlist"] is None or \
+ (len(vlan_region["usedlist"])==25 and vlan_region["lastused"] >= vlan_region["usedlist"][-1]):
+ self.__get_used_net_vlan(region)
+ self.logger.debug("new net_vlan_usedlist %s", str(vlan_region["usedlist"]))
+ if vlan_region["lastused"] in vlan_region["usedlist"]:
continue
else:
- return self.net_vlan_lastused
+ return vlan_region["lastused"]
def get_table(self, **sql_dict):
''' Obtain rows from a table.
#get dedicated ports and SRIOV
cmd = "SELECT port_id as iface_id, p.vlan as vlan, p.mac as mac_address, net_id, if(model='PF',\
- 'yes',if(model='VF','no','yes:sriov')) as dedicated, rp.Mbps as bandwidth, name, vpci, \
+ 'yes',if(model='VF','no','yes:sriov')) as dedicated, p.Mbps as bandwidth, name, vpci, \
pci as source \
FROM resources_port as rp join ports as p on port_id=uuid WHERE p.instance_id = '%s' AND numa_id = '%s' and p.type='instance:data'" % (instance_id, numa_id)
self.logger.debug(cmd)
:param ip_used_list: contain all used ips to avoid ip collisions
:return:
"""
-
ip_tools = IPNetwork(cidr)
cidr_len = ip_tools.prefixlen
ips = IPNetwork(first_ip + '/' + str(cidr_len))
- ip_used_list.append(str(ips[0])) # first ip
- ip_used_list.append(str(ips[1])) # gw ip
- ip_used_list.append(str(ips[-1])) # broadcast ip
+
+ ip_used_list.append(str(ips[1])) # gw ip
+ ip_used_list.append(str(ips[-1])) # broadcast ip
+
for vm_ip in ips:
- if str(vm_ip) not in ip_used_list:
+ if str(vm_ip) not in ip_used_list and IPAddress(first_ip) <= IPAddress(vm_ip) <= IPAddress(last_ip):
return vm_ip
return None