def populate(self, subnet, description, vlan=None):
"""Populate subnet instance's attributes.
@type subnet: string
@param subnet: A string that represents the subnet. Example:
10.0.0.0/16. The last '.0' is not required, e.g. 10.0.0/16.
@type description: string
@param description: Something that describes the given subnet. It is
free text, but local policies might use this in a parsable format
to describe the usage of the given subnet.
@type vlan: int
@param vlan: A number that represents what VLAN the subnet corresponds
to.
"""
Entity.populate(self, self.const.entity_dns_subnet)
# If __in_db is present, it must be True; calling populate on
# an object where __in_db is present and False is very likely
# a programming error.
#
# If __in_db in not present, we'll set it to False.
try:
if not self.__in_db:
raise RuntimeError("populate() called multiple times.")
except AttributeError:
self.__in_db = False
self.subnet_ip, subnet_mask = subnet.split('/')
self.subnet_mask = int(subnet_mask)
if len(self.subnet_ip.split('.')) == 3:
self.subnet_ip = self.subnet_ip + ".0"
(self.ip_min,
self.ip_max) = IPCalc().ip_range_by_netmask(self.subnet_ip,
self.subnet_mask)
self.description = description
self.vlan = vlan
self.name_prefix = ''
max_res = max(cereconf.DEFAULT_RESERVED_BY_NET_SIZE.values())
self.no_of_reserved_adr = cereconf.DEFAULT_RESERVED_BY_NET_SIZE.get(
self.subnet_mask, max_res)
self.calculate_reserved_addresses()
"""Usage: generate_subnet_ldif.py [--logger-name=console ...]
Write IP subnet information from Cerebrum
to an LDIF file, which can then be loaded into LDAP.
See Cerebrum/default_config.py:LDAP_SUBNETS for configuration.
"""
import cerebrum_path
import cereconf
from Cerebrum.Utils import Factory
from Cerebrum.modules.LDIFutils import ldapconf, iso2utf, \
ldif_outfile, end_ldif_outfile, entry_string, container_entry_string
from Cerebrum.modules.dns.Subnet import Subnet
from Cerebrum.modules.dns.IPUtils import IPCalc
netmask_to_ip = IPCalc().netmask_to_ip
def write_subnet_ldif():
DN = ldapconf('SUBNETS', 'dn')
startAttr, endAttr, objectClasses = ldapconf('SUBNETS', 'rangeSchema')
objectClasses = ('top', 'ipNetwork') + tuple(objectClasses)
db = Factory.get('Database')()
f = ldif_outfile('SUBNETS')
f.write(container_entry_string('SUBNETS'))
for row in Subnet(db).search():
cn = "%s/%s" % (row['subnet_ip'], row['subnet_mask'])
desc = row['description']
f.write(
entry_string(
"cn=%s,%s" % (cn, DN), {
