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-rw-r--r--source4/scripting/python/samba/kcc_utils.py1176
1 files changed, 972 insertions, 204 deletions
diff --git a/source4/scripting/python/samba/kcc_utils.py b/source4/scripting/python/samba/kcc_utils.py
index f762f4a252..93096e9689 100644
--- a/source4/scripting/python/samba/kcc_utils.py
+++ b/source4/scripting/python/samba/kcc_utils.py
@@ -20,15 +20,14 @@
import ldb
import uuid
+import time
-from samba import dsdb
-from samba.dcerpc import (
- drsblobs,
- drsuapi,
- misc,
- )
+from samba import (dsdb, unix2nttime)
+from samba.dcerpc import (drsblobs, \
+ drsuapi, \
+ misc)
from samba.common import dsdb_Dn
-from samba.ndr import (ndr_unpack, ndr_pack)
+from samba.ndr import (ndr_unpack, ndr_pack)
class NCType(object):
@@ -42,47 +41,80 @@ class NamingContext(object):
Subclasses may inherit from this and specialize
"""
- def __init__(self, nc_dnstr, nc_guid=None, nc_sid=None):
+ def __init__(self, nc_dnstr):
"""Instantiate a NamingContext
:param nc_dnstr: NC dn string
- :param nc_guid: NC guid
- :param nc_sid: NC sid
"""
self.nc_dnstr = nc_dnstr
- self.nc_guid = nc_guid
- self.nc_sid = nc_sid
- self.nc_type = NCType.unknown
+ self.nc_guid = None
+ self.nc_sid = None
+ self.nc_type = NCType.unknown
def __str__(self):
'''Debug dump string output of class'''
text = "%s:" % self.__class__.__name__
text = text + "\n\tnc_dnstr=%s" % self.nc_dnstr
text = text + "\n\tnc_guid=%s" % str(self.nc_guid)
- text = text + "\n\tnc_sid=%s" % self.nc_sid
+
+ if self.nc_sid is None:
+ text = text + "\n\tnc_sid=<absent>"
+ else:
+ text = text + "\n\tnc_sid=<present>"
+
text = text + "\n\tnc_type=%s" % self.nc_type
return text
+ def load_nc(self, samdb):
+ attrs = [ "objectGUID",
+ "objectSid" ]
+ try:
+ res = samdb.search(base=self.nc_dnstr,
+ scope=ldb.SCOPE_BASE, attrs=attrs)
+
+ except ldb.LdbError, (enum, estr):
+ raise Exception("Unable to find naming context (%s)" % \
+ (self.nc_dnstr, estr))
+ msg = res[0]
+ if "objectGUID" in msg:
+ self.nc_guid = misc.GUID(samdb.schema_format_value("objectGUID",
+ msg["objectGUID"][0]))
+ if "objectSid" in msg:
+ self.nc_sid = msg["objectSid"][0]
+
+ assert self.nc_guid is not None
+ return
+
def is_schema(self):
'''Return True if NC is schema'''
+ assert self.nc_type != NCType.unknown
return self.nc_type == NCType.schema
def is_domain(self):
'''Return True if NC is domain'''
+ assert self.nc_type != NCType.unknown
return self.nc_type == NCType.domain
def is_application(self):
'''Return True if NC is application'''
+ assert self.nc_type != NCType.unknown
return self.nc_type == NCType.application
def is_config(self):
'''Return True if NC is config'''
+ assert self.nc_type != NCType.unknown
return self.nc_type == NCType.config
def identify_by_basedn(self, samdb):
"""Given an NC object, identify what type is is thru
the samdb basedn strings and NC sid value
"""
+ # Invoke loader to initialize guid and more
+ # importantly sid value (sid is used to identify
+ # domain NCs)
+ if self.nc_guid is None:
+ self.load_nc(samdb)
+
# We check against schema and config because they
# will be the same for all nTDSDSAs in the forest.
# That leaves the domain NCs which can be identified
@@ -118,7 +150,7 @@ class NamingContext(object):
# NCs listed under hasMasterNCs are either
# default domain, schema, or config. We
- # utilize the identify_by_samdb_basedn() to
+ # utilize the identify_by_basedn() to
# identify those
elif attr == "hasMasterNCs":
self.identify_by_basedn(samdb)
@@ -136,14 +168,11 @@ class NCReplica(NamingContext):
class) and it identifies unique attributes of the DSA's replica for a NC.
"""
- def __init__(self, dsa_dnstr, dsa_guid, nc_dnstr,
- nc_guid=None, nc_sid=None):
+ def __init__(self, dsa_dnstr, dsa_guid, nc_dnstr):
"""Instantiate a Naming Context Replica
:param dsa_guid: GUID of DSA where replica appears
:param nc_dnstr: NC dn string
- :param nc_guid: NC guid
- :param nc_sid: NC sid
"""
self.rep_dsa_dnstr = dsa_dnstr
self.rep_dsa_guid = dsa_guid
@@ -152,6 +181,8 @@ class NCReplica(NamingContext):
self.rep_ro = False
self.rep_instantiated_flags = 0
+ self.rep_fsmo_role_owner = None
+
# RepsFromTo tuples
self.rep_repsFrom = []
@@ -163,17 +194,18 @@ class NCReplica(NamingContext):
self.rep_present_criteria_one = False
# Call my super class we inherited from
- NamingContext.__init__(self, nc_dnstr, nc_guid, nc_sid)
+ NamingContext.__init__(self, nc_dnstr)
def __str__(self):
'''Debug dump string output of class'''
text = "%s:" % self.__class__.__name__
- text = text + "\n\tdsa_dnstr=%s" % self.rep_dsa_dnstr
- text = text + "\n\tdsa_guid=%s" % str(self.rep_dsa_guid)
- text = text + "\n\tdefault=%s" % self.rep_default
- text = text + "\n\tro=%s" % self.rep_ro
- text = text + "\n\tpartial=%s" % self.rep_partial
- text = text + "\n\tpresent=%s" % self.is_present()
+ text = text + "\n\tdsa_dnstr=%s" % self.rep_dsa_dnstr
+ text = text + "\n\tdsa_guid=%s" % str(self.rep_dsa_guid)
+ text = text + "\n\tdefault=%s" % self.rep_default
+ text = text + "\n\tro=%s" % self.rep_ro
+ text = text + "\n\tpartial=%s" % self.rep_partial
+ text = text + "\n\tpresent=%s" % self.is_present()
+ text = text + "\n\tfsmo_role_owner=%s" % self.rep_fsmo_role_owner
for rep in self.rep_repsFrom:
text = text + "\n%s" % rep
@@ -283,7 +315,7 @@ class NCReplica(NamingContext):
ndr_unpack(drsblobs.repsFromToBlob, value))
self.rep_repsFrom.append(rep)
- def commit_repsFrom(self, samdb):
+ def commit_repsFrom(self, samdb, ro=False):
"""Commit repsFrom to the database"""
# XXX - This is not truly correct according to the MS-TECH
@@ -298,23 +330,39 @@ class NCReplica(NamingContext):
# older KCC also did
modify = False
newreps = []
+ delreps = []
for repsFrom in self.rep_repsFrom:
# Leave out any to be deleted from
- # replacement list
+ # replacement list. Build a list
+ # of to be deleted reps which we will
+ # remove from rep_repsFrom list below
if repsFrom.to_be_deleted == True:
+ delreps.append(repsFrom)
modify = True
continue
if repsFrom.is_modified():
+ repsFrom.set_unmodified()
modify = True
+ # current (unmodified) elements also get
+ # appended here but no changes will occur
+ # unless something is "to be modified" or
+ # "to be deleted"
newreps.append(ndr_pack(repsFrom.ndr_blob))
+ # Now delete these from our list of rep_repsFrom
+ for repsFrom in delreps:
+ self.rep_repsFrom.remove(repsFrom)
+ delreps = []
+
# Nothing to do if no reps have been modified or
- # need to be deleted. Leave database record "as is"
- if modify == False:
+ # need to be deleted or input option has informed
+ # us to be "readonly" (ro). Leave database
+ # record "as is"
+ if modify == False or ro == True:
return
m = ldb.Message()
@@ -330,15 +378,51 @@ class NCReplica(NamingContext):
raise Exception("Could not set repsFrom for (%s) - (%s)" %
(self.dsa_dnstr, estr))
+ def dumpstr_to_be_deleted(self):
+ text=""
+ for repsFrom in self.rep_repsFrom:
+ if repsFrom.to_be_deleted == True:
+ if text:
+ text = text + "\n%s" % repsFrom
+ else:
+ text = "%s" % repsFrom
+ return text
+
+ def dumpstr_to_be_modified(self):
+ text=""
+ for repsFrom in self.rep_repsFrom:
+ if repsFrom.is_modified() == True:
+ if text:
+ text = text + "\n%s" % repsFrom
+ else:
+ text = "%s" % repsFrom
+ return text
+
def load_fsmo_roles(self, samdb):
- # XXX - to be implemented
+ """Given an NC replica which has been discovered thru the nTDSDSA
+ database object, load the fSMORoleOwner attribute.
+ """
+ try:
+ res = samdb.search(base=self.nc_dnstr, scope=ldb.SCOPE_BASE,
+ attrs=[ "fSMORoleOwner" ])
+
+ except ldb.LdbError, (enum, estr):
+ raise Exception("Unable to find NC for (%s) - (%s)" %
+ (self.nc_dnstr, estr))
+
+ msg = res[0]
+
+ # Possibly no fSMORoleOwner
+ if "fSMORoleOwner" in msg:
+ self.rep_fsmo_role_owner = msg["fSMORoleOwner"]
return
def is_fsmo_role_owner(self, dsa_dnstr):
- # XXX - to be implemented
+ if self.rep_fsmo_role_owner is not None and \
+ self.rep_fsmo_role_owner == dsa_dnstr:
+ return True
return False
-
class DirectoryServiceAgent(object):
def __init__(self, dsa_dnstr):
@@ -352,6 +436,7 @@ class DirectoryServiceAgent(object):
self.dsa_guid = None
self.dsa_ivid = None
self.dsa_is_ro = False
+ self.dsa_is_istg = False
self.dsa_options = 0
self.dsa_behavior = 0
self.default_dnstr = None # default domain dn string for dsa
@@ -365,7 +450,7 @@ class DirectoryServiceAgent(object):
self.needed_rep_table = {}
# NTDSConnections for this dsa. These are current
- # valid connections that are committed or "to be committed"
+ # valid connections that are committed or pending a commit
# in the database. Indexed by DN string of connection
self.connect_table = {}
@@ -382,6 +467,7 @@ class DirectoryServiceAgent(object):
text = text + "\n\tro=%s" % self.is_ro()
text = text + "\n\tgc=%s" % self.is_gc()
+ text = text + "\n\tistg=%s" % self.is_istg()
text = text + "\ncurrent_replica_table:"
text = text + "\n%s" % self.dumpstr_current_replica_table()
@@ -393,7 +479,15 @@ class DirectoryServiceAgent(object):
return text
def get_current_replica(self, nc_dnstr):
- return self.current_rep_table[nc_dnstr]
+ if nc_dnstr in self.current_rep_table.keys():
+ return self.current_rep_table[nc_dnstr]
+ else:
+ return None
+
+ def is_istg(self):
+ '''Returns True if dsa is intersite topology generator for it's site'''
+ # The KCC on an RODC always acts as an ISTG for itself
+ return self.dsa_is_istg or self.dsa_is_ro
def is_ro(self):
'''Returns True if dsa a read only domain controller'''
@@ -415,11 +509,11 @@ class DirectoryServiceAgent(object):
return True
return False
- def should_translate_ntdsconn(self):
+ def is_translate_ntdsconn_disabled(self):
"""Whether this allows NTDSConnection translation in its options."""
if (self.options & dsdb.DS_NTDSDSA_OPT_DISABLE_NTDSCONN_XLATE) != 0:
- return False
- return True
+ return True
+ return False
def get_rep_tables(self):
"""Return DSA current and needed replica tables
@@ -433,12 +527,11 @@ class DirectoryServiceAgent(object):
def load_dsa(self, samdb):
"""Load a DSA from the samdb.
-
+
Prior initialization has given us the DN of the DSA that we are to
load. This method initializes all other attributes, including loading
- the NC replica table for this DSA.
+ the NC replica table for this DSA.
"""
- controls = [ "extended_dn:1:1" ]
attrs = ["objectGUID",
"invocationID",
"options",
@@ -446,7 +539,7 @@ class DirectoryServiceAgent(object):
"msDS-Behavior-Version"]
try:
res = samdb.search(base=self.dsa_dnstr, scope=ldb.SCOPE_BASE,
- attrs=attrs, controls=controls)
+ attrs=attrs)
except ldb.LdbError, (enum, estr):
raise Exception("Unable to find nTDSDSA for (%s) - (%s)" %
@@ -481,17 +574,16 @@ class DirectoryServiceAgent(object):
def load_current_replica_table(self, samdb):
"""Method to load the NC replica's listed for DSA object.
-
+
This method queries the samdb for (hasMasterNCs, msDS-hasMasterNCs,
hasPartialReplicaNCs, msDS-HasDomainNCs, msDS-hasFullReplicaNCs, and
msDS-HasInstantiatedNCs) to determine complete list of NC replicas that
are enumerated for the DSA. Once a NC replica is loaded it is
identified (schema, config, etc) and the other replica attributes
- (partial, ro, etc) are determined.
+ (partial, ro, etc) are determined.
:param samdb: database to query for DSA replica list
"""
- controls = ["extended_dn:1:1"]
ncattrs = [ # not RODC - default, config, schema (old style)
"hasMasterNCs",
# not RODC - default, config, schema, app NCs
@@ -506,7 +598,7 @@ class DirectoryServiceAgent(object):
"msDS-HasInstantiatedNCs" ]
try:
res = samdb.search(base=self.dsa_dnstr, scope=ldb.SCOPE_BASE,
- attrs=ncattrs, controls=controls)
+ attrs=ncattrs)
except ldb.LdbError, (enum, estr):
raise Exception("Unable to find nTDSDSA NCs for (%s) - (%s)" %
@@ -533,23 +625,13 @@ class DirectoryServiceAgent(object):
# listed.
for value in res[0][k]:
# Turn dn into a dsdb_Dn so we can use
- # its methods to parse the extended pieces.
- # Note we don't really need the exact sid value
- # but instead only need to know if its present.
- dsdn = dsdb_Dn(samdb, value)
- guid = dsdn.dn.get_extended_component('GUID')
- sid = dsdn.dn.get_extended_component('SID')
+ # its methods to parse a binary DN
+ dsdn = dsdb_Dn(samdb, value)
flags = dsdn.get_binary_integer()
dnstr = str(dsdn.dn)
- if guid is None:
- raise Exception("Missing GUID for (%s) - (%s: %s)" %
- (self.dsa_dnstr, k, value))
- guid = misc.GUID(guid)
-
- if not dnstr in tmp_table:
- rep = NCReplica(self.dsa_dnstr, self.dsa_guid,
- dnstr, guid, sid)
+ if not dnstr in tmp_table.keys():
+ rep = NCReplica(self.dsa_dnstr, self.dsa_guid, dnstr)
tmp_table[dnstr] = rep
else:
rep = tmp_table[dnstr]
@@ -572,7 +654,7 @@ class DirectoryServiceAgent(object):
def add_needed_replica(self, rep):
"""Method to add a NC replica that "should be present" to the
- needed_rep_table if not already in the table
+ needed_rep_table if not already in the table
"""
if not rep.nc_dnstr in self.needed_rep_table.keys():
self.needed_rep_table[rep.nc_dnstr] = rep
@@ -603,23 +685,45 @@ class DirectoryServiceAgent(object):
connect.load_connection(samdb)
self.connect_table[dnstr] = connect
- def commit_connection_table(self, samdb):
+ def commit_connections(self, samdb, ro=False):
"""Method to commit any uncommitted nTDSConnections
- that are in our table. These would be identified
- connections that are marked to be added or deleted
- :param samdb: database to commit DSA connection list to
+ modifications that are in our table. These would be
+ identified connections that are marked to be added or
+ deleted
+
+ :param samdb: database to commit DSA connection list to
+ :param ro: if (true) then peform internal operations but
+ do not write to the database (readonly)
"""
+ delconn = []
+
for dnstr, connect in self.connect_table.items():
- connect.commit_connection(samdb)
+ if connect.to_be_added:
+ connect.commit_added(samdb, ro)
+
+ if connect.to_be_modified:
+ connect.commit_modified(samdb, ro)
+
+ if connect.to_be_deleted:
+ connect.commit_deleted(samdb, ro)
+ delconn.append(dnstr)
+
+ # Now delete the connection from the table
+ for dnstr in delconn:
+ del self.connect_table[dnstr]
+
+ return
def add_connection(self, dnstr, connect):
+ assert dnstr not in self.connect_table.keys()
self.connect_table[dnstr] = connect
def get_connection_by_from_dnstr(self, from_dnstr):
"""Scan DSA nTDSConnection table and return connection
- with a "fromServer" dn string equivalent to method
- input parameter.
- :param from_dnstr: search for this from server entry
+ with a "fromServer" dn string equivalent to method
+ input parameter.
+
+ :param from_dnstr: search for this from server entry
"""
for dnstr, connect in self.connect_table.items():
if connect.get_from_dnstr() == from_dnstr:
@@ -656,20 +760,71 @@ class DirectoryServiceAgent(object):
text = "%s" % self.connect_table[k]
return text
+ def new_connection(self, options, flags, transport, from_dnstr, sched):
+ """Set up a new connection for the DSA based on input
+ parameters. Connection will be added to the DSA
+ connect_table and will be marked as "to be added" pending
+ a call to commit_connections()
+ """
+ dnstr = "CN=%s," % str(uuid.uuid4()) + self.dsa_dnstr
+
+ connect = NTDSConnection(dnstr)
+ connect.to_be_added = True
+ connect.enabled = True
+ connect.from_dnstr = from_dnstr
+ connect.options = options
+ connect.flags = flags
+
+ if transport is not None:
+ connect.transport_dnstr = transport.dnstr
+
+ if sched is not None:
+ connect.schedule = sched
+ else:
+ # Create schedule. Attribute valuse set according to MS-TECH
+ # intrasite connection creation document
+ connect.schedule = drsblobs.schedule()
+
+ connect.schedule.size = 188
+ connect.schedule.bandwidth = 0
+ connect.schedule.numberOfSchedules = 1
+
+ header = drsblobs.scheduleHeader()
+ header.type = 0
+ header.offset = 20
+
+ connect.schedule.headerArray = [ header ]
+
+ # 168 byte instances of the 0x01 value. The low order 4 bits
+ # of the byte equate to 15 minute intervals within a single hour.
+ # There are 168 bytes because there are 168 hours in a full week
+ # Effectively we are saying to perform replication at the end of
+ # each hour of the week
+ data = drsblobs.scheduleSlots()
+ data.slots = [ 0x01 ] * 168
+
+ connect.schedule.dataArray = [ data ]
+
+ self.add_connection(dnstr, connect);
+ return connect
+
class NTDSConnection(object):
"""Class defines a nTDSConnection found under a DSA
"""
def __init__(self, dnstr):
self.dnstr = dnstr
+ self.guid = None
self.enabled = False
- self.committed = False # new connection needs to be committed
+ self.whenCreated = 0
+ self.to_be_added = False # new connection needs to be added
+ self.to_be_deleted = False # old connection needs to be deleted
+ self.to_be_modified = False
self.options = 0
- self.flags = 0
+ self.system_flags = 0
self.transport_dnstr = None
self.transport_guid = None
self.from_dnstr = None
- self.from_guid = None
self.schedule = None
def __str__(self):
@@ -677,16 +832,21 @@ class NTDSConnection(object):
text = "%s:\n\tdn=%s" % (self.__class__.__name__, self.dnstr)
text = text + "\n\tenabled=%s" % self.enabled
- text = text + "\n\tcommitted=%s" % self.committed
+ text = text + "\n\tto_be_added=%s" % self.to_be_added
+ text = text + "\n\tto_be_deleted=%s" % self.to_be_deleted
+ text = text + "\n\tto_be_modified=%s" % self.to_be_modified
text = text + "\n\toptions=0x%08X" % self.options
- text = text + "\n\tflags=0x%08X" % self.flags
+ text = text + "\n\tsystem_flags=0x%08X" % self.system_flags
+ text = text + "\n\twhenCreated=%d" % self.whenCreated
text = text + "\n\ttransport_dn=%s" % self.transport_dnstr
+ if self.guid is not None:
+ text = text + "\n\tguid=%s" % str(self.guid)
+
if self.transport_guid is not None:
text = text + "\n\ttransport_guid=%s" % str(self.transport_guid)
text = text + "\n\tfrom_dn=%s" % self.from_dnstr
- text = text + "\n\tfrom_guid=%s" % str(self.from_guid)
if self.schedule is not None:
text = text + "\n\tschedule.size=%s" % self.schedule.size
@@ -708,19 +868,20 @@ class NTDSConnection(object):
def load_connection(self, samdb):
"""Given a NTDSConnection object with an prior initialization
- for the object's DN, search for the DN and load attributes
- from the samdb.
+ for the object's DN, search for the DN and load attributes
+ from the samdb.
"""
- controls = ["extended_dn:1:1"]
attrs = [ "options",
"enabledConnection",
"schedule",
+ "whenCreated",
+ "objectGUID",
"transportType",
"fromServer",
"systemFlags" ]
try:
res = samdb.search(base=self.dnstr, scope=ldb.SCOPE_BASE,
- attrs=attrs, controls=controls)
+ attrs=attrs)
except ldb.LdbError, (enum, estr):
raise Exception("Unable to find nTDSConnection for (%s) - (%s)" %
@@ -730,59 +891,105 @@ class NTDSConnection(object):
if "options" in msg:
self.options = int(msg["options"][0])
+
if "enabledConnection" in msg:
if msg["enabledConnection"][0].upper().lstrip().rstrip() == "TRUE":
self.enabled = True
+
if "systemFlags" in msg:
- self.flags = int(msg["systemFlags"][0])
- if "transportType" in msg:
- dsdn = dsdb_Dn(samdb, msg["tranportType"][0])
- guid = dsdn.dn.get_extended_component('GUID')
+ self.system_flags = int(msg["systemFlags"][0])
- assert guid is not None
- self.transport_guid = misc.GUID(guid)
+ if "objectGUID" in msg:
+ self.guid = \
+ misc.GUID(samdb.schema_format_value("objectGUID",
+ msg["objectGUID"][0]))
- self.transport_dnstr = str(dsdn.dn)
- assert self.transport_dnstr is not None
+ if "transportType" in msg:
+ dsdn = dsdb_Dn(samdb, msg["tranportType"][0])
+ self.load_connection_transport(str(dsdn.dn))
if "schedule" in msg:
self.schedule = ndr_unpack(drsblobs.replSchedule, msg["schedule"][0])
+ if "whenCreated" in msg:
+ self.whenCreated = ldb.string_to_time(msg["whenCreated"][0])
+
if "fromServer" in msg:
dsdn = dsdb_Dn(samdb, msg["fromServer"][0])
- guid = dsdn.dn.get_extended_component('GUID')
-
- assert guid is not None
- self.from_guid = misc.GUID(guid)
-
self.from_dnstr = str(dsdn.dn)
assert self.from_dnstr is not None
- # Was loaded from database so connection is currently committed
- self.committed = True
+ def load_connection_transport(self, tdnstr):
+ """Given a NTDSConnection object which enumerates a transport
+ DN, load the transport information for the connection object
+
+ :param tdnstr: transport DN to load
+ """
+ attrs = [ "objectGUID" ]
+ try:
+ res = samdb.search(base=tdnstr,
+ scope=ldb.SCOPE_BASE, attrs=attrs)
- def commit_connection(self, samdb):
- """Given a NTDSConnection object that is not committed in the
- sam database, perform a commit action.
+ except ldb.LdbError, (enum, estr):
+ raise Exception("Unable to find transport (%s)" %
+ (tdnstr, estr))
+
+ if "objectGUID" in res[0]:
+ self.transport_dnstr = tdnstr
+ self.transport_guid = \
+ misc.GUID(samdb.schema_format_value("objectGUID",
+ msg["objectGUID"][0]))
+ assert self.transport_dnstr is not None
+ assert self.transport_guid is not None
+ return
+
+ def commit_deleted(self, samdb, ro=False):
+ """Local helper routine for commit_connections() which
+ handles committed connections that are to be deleted from
+ the database database
"""
- # nothing to do
- if self.committed == True:
+ assert self.to_be_deleted
+ self.to_be_deleted = False
+
+ # No database modification requested
+ if ro == True:
+ return
+
+ try:
+ samdb.delete(self.dnstr)
+ except ldb.LdbError, (enum, estr):
+ raise Exception("Could not delete nTDSConnection for (%s) - (%s)" % \
+ (self.dnstr, estr))
+
+ return
+
+ def commit_added(self, samdb, ro=False):
+ """Local helper routine for commit_connections() which
+ handles committed connections that are to be added to the
+ database
+ """
+ assert self.to_be_added
+ self.to_be_added = False
+
+ # No database modification requested
+ if ro == True:
return
# First verify we don't have this entry to ensure nothing
# is programatically amiss
+ found = False
try:
msg = samdb.search(base=self.dnstr, scope=ldb.SCOPE_BASE)
- found = True
+ if len(msg) != 0:
+ found = True
except ldb.LdbError, (enum, estr):
- if enum == ldb.ERR_NO_SUCH_OBJECT:
- found = False
- else:
- raise Exception("Unable to search for (%s) - (%s)" %
+ if enum != ldb.ERR_NO_SUCH_OBJECT:
+ raise Exception("Unable to search for (%s) - (%s)" % \
(self.dnstr, estr))
if found:
- raise Exception("nTDSConnection for (%s) already exists!" % self.dnstr)
+ raise Exception("nTDSConnection for (%s) already exists!" % \
+ self.dnstr)
if self.enabled:
enablestr = "TRUE"
@@ -806,7 +1013,13 @@ class NTDSConnection(object):
m["options"] = \
ldb.MessageElement(str(self.options), ldb.FLAG_MOD_ADD, "options")
m["systemFlags"] = \
- ldb.MessageElement(str(self.flags), ldb.FLAG_MOD_ADD, "systemFlags")
+ ldb.MessageElement(str(self.system_flags), ldb.FLAG_MOD_ADD, \
+ "systemFlags")
+
+ if self.transport_dnstr is not None:
+ m["transportType"] = \
+ ldb.MessageElement(str(self.transport_dnstr), ldb.FLAG_MOD_ADD, \
+ "transportType")
if self.schedule is not None:
m["schedule"] = \
@@ -817,11 +1030,97 @@ class NTDSConnection(object):
except ldb.LdbError, (enum, estr):
raise Exception("Could not add nTDSConnection for (%s) - (%s)" % \
(self.dnstr, estr))
- self.committed = True
+ return
+
+ def commit_modified(self, samdb, ro=False):
+ """Local helper routine for commit_connections() which
+ handles committed connections that are to be modified to the
+ database
+ """
+ assert self.to_be_modified
+ self.to_be_modified = False
+
+ # No database modification requested
+ if ro == True:
+ return
+
+ # First verify we have this entry to ensure nothing
+ # is programatically amiss
+ try:
+ msg = samdb.search(base=self.dnstr, scope=ldb.SCOPE_BASE)
+ found = True
+
+ except ldb.LdbError, (enum, estr):
+ if enum == ldb.ERR_NO_SUCH_OBJECT:
+ found = False
+ else:
+ raise Exception("Unable to search for (%s) - (%s)" % \
+ (self.dnstr, estr))
+ if found == False:
+ raise Exception("nTDSConnection for (%s) doesn't exist!" % \
+ self.dnstr)
+
+ if self.enabled:
+ enablestr = "TRUE"
+ else:
+ enablestr = "FALSE"
+
+ # Prepare a message for modifying the samdb
+ m = ldb.Message()
+ m.dn = ldb.Dn(samdb, self.dnstr)
+
+ m["enabledConnection"] = \
+ ldb.MessageElement(enablestr, ldb.FLAG_MOD_REPLACE, \
+ "enabledConnection")
+ m["fromServer"] = \
+ ldb.MessageElement(self.from_dnstr, ldb.FLAG_MOD_REPLACE, \
+ "fromServer")
+ m["options"] = \
+ ldb.MessageElement(str(self.options), ldb.FLAG_MOD_REPLACE, \
+ "options")
+ m["systemFlags"] = \
+ ldb.MessageElement(str(self.system_flags), ldb.FLAG_MOD_REPLACE, \
+ "systemFlags")
+
+ if self.transport_dnstr is not None:
+ m["transportType"] = \
+ ldb.MessageElement(str(self.transport_dnstr), \
+ ldb.FLAG_MOD_REPLACE, "transportType")
+ else:
+ m["transportType"] = \
+ ldb.MessageElement([], \
+ ldb.FLAG_MOD_DELETE, "transportType")
+
+ if self.schedule is not None:
+ m["schedule"] = \
+ ldb.MessageElement(ndr_pack(self.schedule), \
+ ldb.FLAG_MOD_REPLACE, "schedule")
+ else:
+ m["schedule"] = \
+ ldb.MessageElement([], \
+ ldb.FLAG_MOD_DELETE, "schedule")
+ try:
+ samdb.modify(m)
+ except ldb.LdbError, (enum, estr):
+ raise Exception("Could not modify nTDSConnection for (%s) - (%s)" % \
+ (self.dnstr, estr))
+ return
+
+ def set_modified(self, truefalse):
+ self.to_be_modified = truefalse
+ return
+
+ def set_added(self, truefalse):
+ self.to_be_added = truefalse
+ return
+
+ def set_deleted(self, truefalse):
+ self.to_be_deleted = truefalse
+ return
def is_schedule_minimum_once_per_week(self):
"""Returns True if our schedule includes at least one
- replication interval within the week. False otherwise
+ replication interval within the week. False otherwise
"""
if self.schedule is None or self.schedule.dataArray[0] is None:
return False
@@ -831,19 +1130,52 @@ class NTDSConnection(object):
return True
return False
+ def is_equivalent_schedule(self, sched):
+ """Returns True if our schedule is equivalent to the input
+ comparison schedule.
+
+ :param shed: schedule to compare to
+ """
+ if self.schedule is not None:
+ if sched is None:
+ return False
+ elif sched is None:
+ return True
+
+ if self.schedule.size != sched.size or \
+ self.schedule.bandwidth != sched.bandwidth or \
+ self.schedule.numberOfSchedules != sched.numberOfSchedules:
+ return False
+
+ for i, header in enumerate(self.schedule.headerArray):
+
+ if self.schedule.headerArray[i].type != sched.headerArray[i].type:
+ return False
+
+ if self.schedule.headerArray[i].offset != \
+ sched.headerArray[i].offset:
+ return False
+
+ for a, b in zip(self.schedule.dataArray[i].slots, \
+ sched.dataArray[i].slots):
+ if a != b:
+ return False
+ return True
+
def convert_schedule_to_repltimes(self):
"""Convert NTDS Connection schedule to replTime schedule.
- NTDS Connection schedule slots are double the size of
- the replTime slots but the top portion of the NTDS
- Connection schedule slot (4 most significant bits in
- uchar) are unused. The 4 least significant bits have
- the same (15 minute interval) bit positions as replTimes.
- We thus pack two elements of the NTDS Connection schedule
- slots into one element of the replTimes slot
- If no schedule appears in NTDS Connection then a default
- of 0x11 is set in each replTimes slot as per behaviour
- noted in a Windows DC. That default would cause replication
- within the last 15 minutes of each hour.
+
+ NTDS Connection schedule slots are double the size of
+ the replTime slots but the top portion of the NTDS
+ Connection schedule slot (4 most significant bits in
+ uchar) are unused. The 4 least significant bits have
+ the same (15 minute interval) bit positions as replTimes.
+ We thus pack two elements of the NTDS Connection schedule
+ slots into one element of the replTimes slot
+ If no schedule appears in NTDS Connection then a default
+ of 0x11 is set in each replTimes slot as per behaviour
+ noted in a Windows DC. That default would cause replication
+ within the last 15 minutes of each hour.
"""
times = [0x11] * 84
@@ -856,12 +1188,56 @@ class NTDSConnection(object):
def is_rodc_topology(self):
"""Returns True if NTDS Connection specifies RODC
- topology only
+ topology only
"""
if self.options & dsdb.NTDSCONN_OPT_RODC_TOPOLOGY == 0:
return False
return True
+ def is_generated(self):
+ """Returns True if NTDS Connection was generated by the
+ KCC topology algorithm as opposed to set by the administrator
+ """
+ if self.options & dsdb.NTDSCONN_OPT_IS_GENERATED == 0:
+ return False
+ return True
+
+ def is_override_notify_default(self):
+ """Returns True if NTDS Connection should override notify default
+ """
+ if self.options & dsdb.NTDSCONN_OPT_OVERRIDE_NOTIFY_DEFAULT == 0:
+ return False
+ return True
+
+ def is_use_notify(self):
+ """Returns True if NTDS Connection should use notify
+ """
+ if self.options & dsdb.NTDSCONN_OPT_USE_NOTIFY == 0:
+ return False
+ return True
+
+ def is_twoway_sync(self):
+ """Returns True if NTDS Connection should use twoway sync
+ """
+ if self.options & dsdb.NTDSCONN_OPT_TWOWAY_SYNC == 0:
+ return False
+ return True
+
+ def is_intersite_compression_disabled(self):
+ """Returns True if NTDS Connection intersite compression
+ is disabled
+ """
+ if self.options & dsdb.NTDSCONN_OPT_DISABLE_INTERSITE_COMPRESSION == 0:
+ return False
+ return True
+
+ def is_user_owned_schedule(self):
+ """Returns True if NTDS Connection has a user owned schedule
+ """
+ if self.options & dsdb.NTDSCONN_OPT_USER_OWNED_SCHEDULE == 0:
+ return False
+ return True
+
def is_enabled(self):
"""Returns True if NTDS Connection is enabled
"""
@@ -881,6 +1257,8 @@ class Partition(NamingContext):
"""
def __init__(self, partstr):
self.partstr = partstr
+ self.enabled = True
+ self.system_flags = 0
self.rw_location_list = []
self.ro_location_list = []
@@ -899,13 +1277,14 @@ class Partition(NamingContext):
:param samdb: sam database to load partition from
"""
- controls = ["extended_dn:1:1"]
attrs = [ "nCName",
+ "Enabled",
+ "systemFlags",
"msDS-NC-Replica-Locations",
"msDS-NC-RO-Replica-Locations" ]
try:
res = samdb.search(base=self.partstr, scope=ldb.SCOPE_BASE,
- attrs=attrs, controls=controls)
+ attrs=attrs)
except ldb.LdbError, (enum, estr):
raise Exception("Unable to find partition for (%s) - (%s)" % (
@@ -916,43 +1295,57 @@ class Partition(NamingContext):
if k == "dn":
continue
+ if k == "Enabled":
+ if msg[k][0].upper().lstrip().rstrip() == "TRUE":
+ self.enabled = True
+ else:
+ self.enabled = False
+ continue
+
+ if k == "systemFlags":
+ self.system_flags = int(msg[k][0])
+ continue
+
for value in msg[k]:
- # Turn dn into a dsdb_Dn so we can use
- # its methods to parse the extended pieces.
- # Note we don't really need the exact sid value
- # but instead only need to know if its present.
- dsdn = dsdb_Dn(samdb, value)
- guid = dsdn.dn.get_extended_component('GUID')
- sid = dsdn.dn.get_extended_component('SID')
-
- if guid is None:
- raise Exception("Missing GUID for (%s) - (%s: %s)" % \
- (self.partstr, k, value))
- guid = misc.GUID(guid)
+ dsdn = dsdb_Dn(samdb, value)
+ dnstr = str(dsdn.dn)
if k == "nCName":
- self.nc_dnstr = str(dsdn.dn)
- self.nc_guid = guid
- self.nc_sid = sid
+ self.nc_dnstr = dnstr
continue
if k == "msDS-NC-Replica-Locations":
- self.rw_location_list.append(str(dsdn.dn))
+ self.rw_location_list.append(dnstr)
continue
if k == "msDS-NC-RO-Replica-Locations":
- self.ro_location_list.append(str(dsdn.dn))
+ self.ro_location_list.append(dnstr)
continue
# Now identify what type of NC this partition
# enumerated
self.identify_by_basedn(samdb)
+ def is_enabled(self):
+ """Returns True if partition is enabled
+ """
+ return self.is_enabled
+
+ def is_foreign(self):
+ """Returns True if this is not an Active Directory NC in our
+ forest but is instead something else (e.g. a foreign NC)
+ """
+ if (self.system_flags & dsdb.SYSTEM_FLAG_CR_NTDS_NC) == 0:
+ return True
+ else:
+ return False
+
def should_be_present(self, target_dsa):
"""Tests whether this partition should have an NC replica
- on the target dsa. This method returns a tuple of
- needed=True/False, ro=True/False, partial=True/False
- :param target_dsa: should NC be present on target dsa
+ on the target dsa. This method returns a tuple of
+ needed=True/False, ro=True/False, partial=True/False
+
+ :param target_dsa: should NC be present on target dsa
"""
needed = False
ro = False
@@ -1009,19 +1402,28 @@ class Partition(NamingContext):
class Site(object):
-
+ """An individual site object discovered thru the configuration
+ naming context. Contains all DSAs that exist within the site
+ """
def __init__(self, site_dnstr):
- self.site_dnstr = site_dnstr
- self.site_options = 0
- self.dsa_table = {}
+ self.site_dnstr = site_dnstr
+ self.site_options = 0
+ self.site_topo_generator = None
+ self.site_topo_failover = 0 # appears to be in minutes
+ self.dsa_table = {}
def load_site(self, samdb):
"""Loads the NTDS Site Settions options attribute for the site
+ as well as querying and loading all DSAs that appear within
+ the site.
"""
ssdn = "CN=NTDS Site Settings,%s" % self.site_dnstr
+ attrs = ["options",
+ "interSiteTopologyFailover",
+ "interSiteTopologyGenerator"]
try:
res = samdb.search(base=ssdn, scope=ldb.SCOPE_BASE,
- attrs=["options"])
+ attrs=attrs)
except ldb.LdbError, (enum, estr):
raise Exception("Unable to find site settings for (%s) - (%s)" %
(ssdn, estr))
@@ -1030,12 +1432,18 @@ class Site(object):
if "options" in msg:
self.site_options = int(msg["options"][0])
+ if "interSiteTopologyGenerator" in msg:
+ self.site_topo_generator = str(msg["interSiteTopologyGenerator"][0])
+
+ if "interSiteTopologyFailover" in msg:
+ self.site_topo_failover = int(msg["interSiteTopologyFailover"][0])
+
self.load_all_dsa(samdb)
def load_all_dsa(self, samdb):
"""Discover all nTDSDSA thru the sites entry and
- instantiate and load the DSAs. Each dsa is inserted
- into the dsa_table by dn string.
+ instantiate and load the DSAs. Each dsa is inserted
+ into the dsa_table by dn string.
"""
try:
res = samdb.search(self.site_dnstr,
@@ -1067,7 +1475,7 @@ class Site(object):
def get_dsa(self, dnstr):
"""Return a previously loaded DSA object by consulting
- the sites dsa_table for the provided DSA dn string
+ the sites dsa_table for the provided DSA dn string
:return: None if DSA doesn't exist
"""
@@ -1075,25 +1483,222 @@ class Site(object):
return self.dsa_table[dnstr]
return None
+ def select_istg(self, samdb, mydsa, ro):
+ """Determine if my DC should be an intersite topology
+ generator. If my DC is the istg and is both a writeable
+ DC and the database is opened in write mode then we perform
+ an originating update to set the interSiteTopologyGenerator
+ attribute in the NTDS Site Settings object. An RODC always
+ acts as an ISTG for itself.
+ """
+ # The KCC on an RODC always acts as an ISTG for itself
+ if mydsa.dsa_is_ro:
+ mydsa.dsa_is_istg = True
+ return True
+
+ # Find configuration NC replica for my DSA
+ for c_rep in mydsa.current_rep_table.values():
+ if c_rep.is_config():
+ break
+
+ if c_rep is None:
+ raise Exception("Unable to find config NC replica for (%s)" % \
+ mydsa.dsa_dnstr)
+
+ # Load repsFrom if not already loaded so we can get the current
+ # state of the config replica and whether we are getting updates
+ # from the istg
+ c_rep.load_repsFrom(samdb)
+
+ # From MS-Tech ISTG selection:
+ # First, the KCC on a writable DC determines whether it acts
+ # as an ISTG for its site
+ #
+ # Let s be the object such that s!lDAPDisplayName = nTDSDSA
+ # and classSchema in s!objectClass.
+ #
+ # Let D be the sequence of objects o in the site of the local
+ # DC such that o!objectCategory = s. D is sorted in ascending
+ # order by objectGUID.
+ #
+ # Which is a fancy way of saying "sort all the nTDSDSA objects
+ # in the site by guid in ascending order". Place sorted list
+ # in D_sort[]
+ D_sort = []
+ d_dsa = None
+
+ unixnow = int(time.time()) # seconds since 1970
+ ntnow = unix2nttime(unixnow) # double word number of 100 nanosecond
+ # intervals since 1600s
+
+ for dsa in self.dsa_table.values():
+ D_sort.append(dsa)
+
+ D_sort.sort(sort_dsa_by_guid)
+
+ # Let f be the duration o!interSiteTopologyFailover seconds, or 2 hours
+ # if o!interSiteTopologyFailover is 0 or has no value.
+ #
+ # Note: lastSuccess and ntnow are in 100 nanosecond intervals
+ # so it appears we have to turn f into the same interval
+ #
+ # interSiteTopologyFailover (if set) appears to be in minutes
+ # so we'll need to convert to senconds and then 100 nanosecond
+ # intervals
+ #
+ # 10,000,000 is number of 100 nanosecond intervals in a second
+ if self.site_topo_failover == 0:
+ f = 2 * 60 * 60 * 10000000
+ else:
+ f = self.site_topo_failover * 60 * 10000000
+
+ # From MS-Tech ISTG selection:
+ # If o != NULL and o!interSiteTopologyGenerator is not the
+ # nTDSDSA object for the local DC and
+ # o!interSiteTopologyGenerator is an element dj of sequence D:
+ #
+ if self.site_topo_generator is not None and \
+ self.site_topo_generator in self.dsa_table.keys():
+ d_dsa = self.dsa_table[self.site_topo_generator]
+ j_idx = D_sort.index(d_dsa)
+
+ if d_dsa is not None and d_dsa is not mydsa:
+ # From MS-Tech ISTG selection:
+ # Let c be the cursor in the replUpToDateVector variable
+ # associated with the NC replica of the config NC such
+ # that c.uuidDsa = dj!invocationId. If no such c exists
+ # (No evidence of replication from current ITSG):
+ # Let i = j.
+ # Let t = 0.
+ #
+ # Else if the current time < c.timeLastSyncSuccess - f
+ # (Evidence of time sync problem on current ISTG):
+ # Let i = 0.
+ # Let t = 0.
+ #
+ # Else (Evidence of replication from current ITSG):
+ # Let i = j.
+ # Let t = c.timeLastSyncSuccess.
+ #
+ # last_success appears to be a double word containing
+ # number of 100 nanosecond intervals since the 1600s
+ if d_dsa.dsa_ivid != c_rep.source_dsa_invocation_id:
+ i_idx = j_idx
+ t_time = 0
+
+ elif ntnow < (c_rep.last_success - f):
+ i_idx = 0
+ t_time = 0
+
+ else:
+ i_idx = j_idx
+ t_time = c_rep.last_success
+
+ # Otherwise (Nominate local DC as ISTG):
+ # Let i be the integer such that di is the nTDSDSA
+ # object for the local DC.
+ # Let t = the current time.
+ else:
+ i_idx = D_sort.index(mydsa)
+ t_time = ntnow
+
+ # Compute a function that maintains the current ISTG if
+ # it is alive, cycles through other candidates if not.
+ #
+ # Let k be the integer (i + ((current time - t) /
+ # o!interSiteTopologyFailover)) MOD |D|.
+ #
+ # Note: We don't want to divide by zero here so they must
+ # have meant "f" instead of "o!interSiteTopologyFailover"
+ k_idx = (i_idx + ((ntnow - t_time) / f)) % len(D_sort)
+
+ # The local writable DC acts as an ISTG for its site if and
+ # only if dk is the nTDSDSA object for the local DC. If the
+ # local DC does not act as an ISTG, the KCC skips the
+ # remainder of this task.
+ d_dsa = D_sort[k_idx]
+ d_dsa.dsa_is_istg = True
+
+ # Update if we are the ISTG, otherwise return
+ if d_dsa is not mydsa:
+ return False
+
+ # Nothing to do
+ if self.site_topo_generator == mydsa.dsa_dnstr:
+ return True
+
+ self.site_topo_generator = mydsa.dsa_dnstr
+
+ # If readonly database then do not perform a
+ # persistent update
+ if ro == True:
+ return True
+
+ # Perform update to the samdb
+ ssdn = "CN=NTDS Site Settings,%s" % self.site_dnstr
+
+ m = ldb.Message()
+ m.dn = ldb.Dn(samdb, ssdn)
+
+ m["interSiteTopologyGenerator"] = \
+ ldb.MessageElement(mydsa.dsa_dnstr, ldb.FLAG_MOD_REPLACE, \
+ "interSiteTopologyGenerator")
+ try:
+ samdb.modify(m)
+
+ except ldb.LdbError, estr:
+ raise Exception("Could not set interSiteTopologyGenerator for (%s) - (%s)" %
+ (ssdn, estr))
+ return True
+
def is_intrasite_topology_disabled(self):
- '''Returns True if intrasite topology is disabled for site'''
+ '''Returns True if intra-site topology is disabled for site'''
if (self.site_options &
dsdb.DS_NTDSSETTINGS_OPT_IS_AUTO_TOPOLOGY_DISABLED) != 0:
return True
return False
- def should_detect_stale(self):
- '''Returns True if detect stale is enabled for site'''
+ def is_intersite_topology_disabled(self):
+ '''Returns True if inter-site topology is disabled for site'''
+ if (self.site_options &
+ dsdb.DS_NTDSSETTINGS_OPT_IS_INTER_SITE_AUTO_TOPOLOGY_DISABLED) != 0:
+ return True
+ return False
+
+ def is_random_bridgehead_disabled(self):
+ '''Returns True if selection of random bridgehead is disabled'''
if (self.site_options &
- dsdb.DS_NTDSSETTINGS_OPT_IS_TOPL_DETECT_STALE_DISABLED) == 0:
+ dsdb.DS_NTDSSETTINGS_OPT_IS_RAND_BH_SELECTION_DISABLED) != 0:
return True
return False
+ def is_detect_stale_disabled(self):
+ '''Returns True if detect stale is disabled for site'''
+ if (self.site_options &
+ dsdb.DS_NTDSSETTINGS_OPT_IS_TOPL_DETECT_STALE_DISABLED) != 0:
+ return True
+ return False
+
+ def is_cleanup_ntdsconn_disabled(self):
+ '''Returns True if NTDS Connection cleanup is disabled for site'''
+ if (self.site_options &
+ dsdb.DS_NTDSSETTINGS_OPT_IS_TOPL_CLEANUP_DISABLED) != 0:
+ return True
+ return False
+
+ def same_site(self, dsa):
+ '''Return True if dsa is in this site'''
+ if self.get_dsa(dsa.dsa_dnstr):
+ return True
+ return False
+
def __str__(self):
'''Debug dump string output of class'''
text = "%s:" % self.__class__.__name__
- text = text + "\n\tdn=%s" % self.site_dnstr
- text = text + "\n\toptions=0x%X" % self.site_options
+ text = text + "\n\tdn=%s" % self.site_dnstr
+ text = text + "\n\toptions=0x%X" % self.site_options
+ text = text + "\n\ttopo_generator=%s" % self.site_topo_generator
+ text = text + "\n\ttopo_failover=%d" % self.site_topo_failover
for key, dsa in self.dsa_table.items():
text = text + "\n%s" % dsa
return text
@@ -1101,7 +1706,7 @@ class Site(object):
class GraphNode(object):
"""A graph node describing a set of edges that should be directed to it.
-
+
Each edge is a connection for a particular naming context replica directed
from another node in the forest to this node.
"""
@@ -1127,7 +1732,7 @@ class GraphNode(object):
def add_edge_from(self, from_dsa_dnstr):
"""Add an edge from the dsa to our graph nodes edge from list
-
+
:param from_dsa_dnstr: the dsa that the edge emanates from
"""
assert from_dsa_dnstr is not None
@@ -1146,10 +1751,10 @@ class GraphNode(object):
def add_edges_from_connections(self, dsa):
"""For each nTDSConnection object associated with a particular
- DSA, we test if it implies an edge to this graph node (i.e.
- the "fromServer" attribute). If it does then we add an
- edge from the server unless we are over the max edges for this
- graph node
+ DSA, we test if it implies an edge to this graph node (i.e.
+ the "fromServer" attribute). If it does then we add an
+ edge from the server unless we are over the max edges for this
+ graph node
:param dsa: dsa with a dnstr equivalent to his graph node
"""
@@ -1186,41 +1791,13 @@ class GraphNode(object):
return
# Generate a new dnstr for this nTDSConnection
- dnstr = "CN=%s," % str(uuid.uuid4()) + self.dsa_dnstr
-
- connect = NTDSConnection(dnstr)
- connect.committed = False
- connect.enabled = True
- connect.from_dnstr = edge_dnstr
- connect.options = dsdb.NTDSCONN_OPT_IS_GENERATED
- connect.flags = dsdb.SYSTEM_FLAG_CONFIG_ALLOW_RENAME + \
- dsdb.SYSTEM_FLAG_CONFIG_ALLOW_MOVE
-
- # Create schedule. Attribute valuse set according to MS-TECH
- # intrasite connection creation document
- connect.schedule = drsblobs.schedule()
-
- connect.schedule.size = 188
- connect.schedule.bandwidth = 0
- connect.schedule.numberOfSchedules = 1
+ opt = dsdb.NTDSCONN_OPT_IS_GENERATED
+ flags = dsdb.SYSTEM_FLAG_CONFIG_ALLOW_RENAME + \
+ dsdb.SYSTEM_FLAG_CONFIG_ALLOW_MOVE
- header = drsblobs.scheduleHeader()
- header.type = 0
- header.offset = 20
-
- connect.schedule.headerArray = [ header ]
-
- # 168 byte instances of the 0x01 value. The low order 4 bits
- # of the byte equate to 15 minute intervals within a single hour.
- # There are 168 bytes because there are 168 hours in a full week
- # Effectively we are saying to perform replication at the end of
- # each hour of the week
- data = drsblobs.scheduleSlots()
- data.slots = [ 0x01 ] * 168
-
- connect.schedule.dataArray = [ data ]
+ dsa.create_connection(opt, flags, None, edge_dnstr, None)
+ return
- dsa.add_connection(dnstr, connect);
def has_sufficient_edges(self):
'''Return True if we have met the maximum "from edges" criteria'''
@@ -1229,6 +1806,7 @@ class GraphNode(object):
return False
+
class Transport(object):
"""Class defines a Inter-site transport found under Sites
"""
@@ -1237,7 +1815,9 @@ class Transport(object):
self.dnstr = dnstr
self.options = 0
self.guid = None
+ self.name = None
self.address_attr = None
+ self.bridgehead_list = []
def __str__(self):
'''Debug dump string output of Transport object'''
@@ -1246,16 +1826,21 @@ class Transport(object):
text = text + "\n\tguid=%s" % str(self.guid)
text = text + "\n\toptions=%d" % self.options
text = text + "\n\taddress_attr=%s" % self.address_attr
+ text = text + "\n\tname=%s" % self.name
+ for dnstr in self.bridgehead_list:
+ text = text + "\n\tbridgehead_list=%s" % dnstr
return text
def load_transport(self, samdb):
"""Given a Transport object with an prior initialization
- for the object's DN, search for the DN and load attributes
- from the samdb.
+ for the object's DN, search for the DN and load attributes
+ from the samdb.
"""
attrs = [ "objectGUID",
"options",
+ "name",
+ "bridgeheadServerListBL",
"transportAddressAttribute" ]
try:
res = samdb.search(base=self.dnstr, scope=ldb.SCOPE_BASE,
@@ -1271,9 +1856,20 @@ class Transport(object):
if "options" in msg:
self.options = int(msg["options"][0])
+
if "transportAddressAttribute" in msg:
self.address_attr = str(msg["transportAddressAttribute"][0])
+ if "name" in msg:
+ self.name = str(msg["name"][0])
+
+ if "bridgeheadServerListBL" in msg:
+ for value in msg["bridgeheadServerListBL"]:
+ dsdn = dsdb_Dn(samdb, value)
+ dnstr = str(dsdn.dn)
+ if dnstr not in self.bridgehead_list:
+ self.bridgehead_list.append(dnstr)
+ return
class RepsFromTo(object):
"""Class encapsulation of the NDR repsFromToBlob.
@@ -1367,6 +1963,12 @@ class RepsFromTo(object):
'source_dsa_obj_guid', 'source_dsa_invocation_id',
'consecutive_sync_failures', 'last_success',
'last_attempt' ]:
+
+ if item in ['replica_flags']:
+ self.__dict__['update_flags'] |= drsuapi.DRSUAPI_DRS_UPDATE_FLAGS
+ elif item in ['schedule']:
+ self.__dict__['update_flags'] |= drsuapi.DRSUAPI_DRS_UPDATE_SCHEDULE
+
setattr(self.__dict__['ndr_blob'].ctr, item, value)
elif item in ['dns_name1']:
@@ -1388,21 +1990,23 @@ class RepsFromTo(object):
self.__dict__['ndr_blob'].ctr.other_info.dns_name2 = \
self.__dict__['dns_name2']
+ elif item in ['nc_dnstr']:
+ self.__dict__['nc_dnstr'] = value
+
+ elif item in ['to_be_deleted']:
+ self.__dict__['to_be_deleted'] = value
+
elif item in ['version']:
raise AttributeError, "Attempt to set readonly attribute %s" % item
else:
raise AttributeError, "Unknown attribute %s" % item
- if item in ['replica_flags']:
- self.__dict__['update_flags'] |= drsuapi.DRSUAPI_DRS_UPDATE_FLAGS
- elif item in ['schedule']:
- self.__dict__['update_flags'] |= drsuapi.DRSUAPI_DRS_UPDATE_SCHEDULE
- else:
- self.__dict__['update_flags'] |= drsuapi.DRSUAPI_DRS_UPDATE_ADDRESS
+ self.__dict__['update_flags'] |= drsuapi.DRSUAPI_DRS_UPDATE_ADDRESS
+ return
def __getattr__(self, item):
"""Overload of RepsFromTo attribute retrieval.
-
+
Allows external code to ignore substructures within the blob
"""
if item in [ 'schedule', 'replica_flags', 'transport_guid',
@@ -1426,7 +2030,171 @@ class RepsFromTo(object):
else:
return self.__dict__['ndr_blob'].ctr.other_info.dns_name2
+ elif item in ['to_be_deleted']:
+ return self.__dict__['to_be_deleted']
+
+ elif item in ['nc_dnstr']:
+ return self.__dict__['nc_dnstr']
+
+ elif item in ['update_flags']:
+ return self.__dict__['update_flags']
+
raise AttributeError, "Unknwown attribute %s" % item
def is_modified(self):
return (self.update_flags != 0x0)
+
+ def set_unmodified(self):
+ self.__dict__['update_flags'] = 0x0
+
+class SiteLink(object):
+ """Class defines a site link found under sites
+ """
+
+ def __init__(self, dnstr):
+ self.dnstr = dnstr
+ self.options = 0
+ self.system_flags = 0
+ self.cost = 0
+ self.schedule = None
+ self.interval = None
+ self.site_list = []
+
+ def __str__(self):
+ '''Debug dump string output of Transport object'''
+
+ text = "%s:\n\tdn=%s" % (self.__class__.__name__, self.dnstr)
+ text = text + "\n\toptions=%d" % self.options
+ text = text + "\n\tsystem_flags=%d" % self.system_flags
+ text = text + "\n\tcost=%d" % self.cost
+ text = text + "\n\tinterval=%s" % self.interval
+
+ if self.schedule is not None:
+ text = text + "\n\tschedule.size=%s" % self.schedule.size
+ text = text + "\n\tschedule.bandwidth=%s" % self.schedule.bandwidth
+ text = text + "\n\tschedule.numberOfSchedules=%s" % \
+ self.schedule.numberOfSchedules
+
+ for i, header in enumerate(self.schedule.headerArray):
+ text = text + "\n\tschedule.headerArray[%d].type=%d" % \
+ (i, header.type)
+ text = text + "\n\tschedule.headerArray[%d].offset=%d" % \
+ (i, header.offset)
+ text = text + "\n\tschedule.dataArray[%d].slots[ " % i
+ for slot in self.schedule.dataArray[i].slots:
+ text = text + "0x%X " % slot
+ text = text + "]"
+
+ for dnstr in self.site_list:
+ text = text + "\n\tsite_list=%s" % dnstr
+ return text
+
+ def load_sitelink(self, samdb):
+ """Given a siteLink object with an prior initialization
+ for the object's DN, search for the DN and load attributes
+ from the samdb.
+ """
+ attrs = [ "options",
+ "systemFlags",
+ "cost",
+ "schedule",
+ "replInterval",
+ "siteList" ]
+ try:
+ res = samdb.search(base=self.dnstr, scope=ldb.SCOPE_BASE,
+ attrs=attrs)
+
+ except ldb.LdbError, (enum, estr):
+ raise Exception("Unable to find SiteLink for (%s) - (%s)" %
+ (self.dnstr, estr))
+
+ msg = res[0]
+
+ if "options" in msg:
+ self.options = int(msg["options"][0])
+
+ if "systemFlags" in msg:
+ self.system_flags = int(msg["systemFlags"][0])
+
+ if "cost" in msg:
+ self.cost = int(msg["cost"][0])
+
+ if "replInterval" in msg:
+ self.interval = int(msg["replInterval"][0])
+
+ if "siteList" in msg:
+ for value in msg["siteList"]:
+ dsdn = dsdb_Dn(samdb, value)
+ dnstr = str(dsdn.dn)
+ if dnstr not in self.site_list:
+ self.site_list.append(dnstr)
+ return
+
+ def is_sitelink(self, site1_dnstr, site2_dnstr):
+ """Given a siteLink object, determine if it is a link
+ between the two input site DNs
+ """
+ if site1_dnstr in self.site_list and \
+ site2_dnstr in self.site_list:
+ return True
+ return False
+
+class VertexColor():
+ (unknown, white, black, red) = range(0, 4)
+
+class Vertex(object):
+ """Class encapsulation of a Site Vertex in the
+ intersite topology replication algorithm
+ """
+ def __init__(self, site, part):
+ self.site = site
+ self.part = part
+ self.color = VertexColor.unknown
+ return
+
+ def color_vertex(self):
+ """Color each vertex to indicate which kind of NC
+ replica it contains
+ """
+ # IF s contains one or more DCs with full replicas of the
+ # NC cr!nCName
+ # SET v.Color to COLOR.RED
+ # ELSEIF s contains one or more partial replicas of the NC
+ # SET v.Color to COLOR.BLACK
+ #ELSE
+ # SET v.Color to COLOR.WHITE
+
+ # set to minimum (no replica)
+ self.color = VertexColor.white
+
+ for dnstr, dsa in self.site.dsa_table.items():
+ rep = dsa.get_current_replica(self.part.nc_dnstr)
+ if rep is None:
+ continue
+
+ # We have a full replica which is the largest
+ # value so exit
+ if rep.is_partial() == False:
+ self.color = VertexColor.red
+ break
+ else:
+ self.color = VertexColor.black
+ return
+
+ def is_red(self):
+ assert(self.color != VertexColor.unknown)
+ return (self.color == VertexColor.red)
+
+ def is_black(self):
+ assert(self.color != VertexColor.unknown)
+ return (self.color == VertexColor.black)
+
+ def is_white(self):
+ assert(self.color != VertexColor.unknown)
+ return (self.color == VertexColor.white)
+
+##################################################
+# Global Functions
+##################################################
+def sort_dsa_by_guid(dsa1, dsa2):
+ return cmp(dsa1.dsa_guid, dsa2.dsa_guid)