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#!/usr/bin/env python
#
# Unix SMB/CIFS implementation.
# A script to compare differences of objects and attributes between
# two LDAP servers both running at the same time. It generally compares
# one of the three pratitions DOMAIN, CONFIGURATION or SCHEMA. Users
# that have to be provided sheould be able to read objects in any of the
# above partitions.
# Copyright (C) Zahari Zahariev <zahari.zahariev@postpath.com> 2009
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
import os
import re
import sys
from optparse import OptionParser
sys.path.insert(0, "bin/python")
import samba
import samba.getopt as options
from samba import Ldb
from samba.ndr import ndr_pack, ndr_unpack
from samba.dcerpc import security
from ldb import SCOPE_SUBTREE, SCOPE_ONELEVEL, SCOPE_BASE, ERR_NO_SUCH_OBJECT, LdbError
global summary
summary = {}
class LDAPBase(object):
def __init__(self, host, creds, lp):
if not "://" in host:
self.host = "ldap://" + host + ":389"
self.ldb = Ldb(self.host, credentials=creds, lp=lp,
options=["modules:paged_searches"])
self.base_dn = self.find_basedn()
self.netbios_name = self.find_netbios()
self.domain_name = re.sub("[Dd][Cc]=", "", self.base_dn).replace(",", ".")
self.domain_sid_bin = self.get_object_sid(self.base_dn)
def find_netbios(self):
res = self.ldb.search(base="CN=Partitions,CN=Configuration,%s" % self.base_dn, \
scope=SCOPE_SUBTREE, attrs=["nETBIOSName"])
assert len(res) > 0
for x in res:
if "nETBIOSName" in x.keys():
return x["nETBIOSName"][0]
def find_basedn(self):
res = self.ldb.search(base="", expression="(objectClass=*)", scope=SCOPE_BASE,
attrs=["defaultNamingContext"])
assert len(res) == 1
return res[0]["defaultNamingContext"][0]
def object_exists(self, object_dn):
res = None
try:
res = self.ldb.search(base=object_dn, scope=SCOPE_BASE, expression="(objectClass=*)")
except LdbError, (ERR_NO_SUCH_OBJECT, _):
return False
return len(res) == 1
def get_object_sid(self, object_dn):
try:
res = self.ldb.search(base=object_dn, expression="(objectClass=*)", scope=SCOPE_BASE, attrs=["objectSid"])
except LdbError, (ERR_NO_SUCH_OBJECT, _):
raise Exception("DN sintax is wrong or object does't exist: " + object_dn)
assert len(res) == 1
return res[0]["objectSid"][0]
def delete_force(self, object_dn):
try:
self.ldb.delete(object_dn)
except Ldb.LdbError, e:
assert "No such object" in str(e)
def get_attributes(self, object_dn):
""" Returns dict with all default visible attributes
"""
res = self.ldb.search(base=object_dn, scope=SCOPE_BASE, attrs=["*"])
assert len(res) == 1
res = dict(res[0])
# 'Dn' element is not iterable and we have it as 'distinguishedName'
del res["dn"]
for key in res.keys():
res[key] = list(res[key])
return res
def get_descriptor(self, object_dn):
res = self.ldb.search(base=object_dn, scope=SCOPE_BASE, attrs=["nTSecurityDescriptor"])
return res[0]["nTSecurityDescriptor"][0]
class AdObject(object):
def __init__(self, con, dn, summary):
self.con = con
self.summary = summary
self.dn = dn.replace("${DOMAIN_DN}", self.con.base_dn)
self.attributes = self.con.get_attributes(self.dn)
# attributes that are considered always to be different e.g based on timestamp etc.
self.ignore_attributes = ["objectCategory", "objectGUID", \
"whenChanged", "objectSid", "whenCreated", "uSNChanged", "pwdLastSet", \
"uSNCreated", "logonCount", "badPasswordTime", "lastLogon", "creationTime", \
"modifiedCount", "priorSetTime", "rIDManagerReference", "gPLink", "ipsecNFAReference", \
"fRSPrimaryMember", "fSMORoleOwner", "masteredBy", "ipsecOwnersReference", "wellKnownObjects", \
"badPwdCount", "ipsecISAKMPReference", "ipsecFilterReference", "msDs-masteredBy", "lastSetTime", \
"ipsecNegotiationPolicyReference", "subRefs", "gPCFileSysPath", "accountExpires", "dSCorePropagationData", \
# After Exchange preps
"targetAddress", "msExchMailboxGuid", "siteFolderGUID"]
#self.ignore_attributes = []
self.ignore_attributes = [x.upper() for x in self.ignore_attributes]
#
# Attributes that contain the unique DN tail part e.g. 'DC=samba,DC=org'
self.dn_attributes = ["distinguishedName", "defaultObjectCategory", \
"member", "memberOf", "siteList", "nCName", "homeMDB", "homeMTA", "interSiteTopologyGenerator", \
# After Exchange preps
"msExchHomeRoutingGroup", "msExchResponsibleMTAServer", "siteFolderServer", "msExchRoutingMasterDN", \
"msExchRoutingGroupMembersBL", "homeMDBBL", "msExchHomePublicMDB", "msExchOwningServer", "templateRoots", \
"addressBookRoots", "msExchPolicyRoots", "globalAddressList", "msExchOwningPFTree", \
"msExchResponsibleMTAServerBL", "msExchOwningPFTreeBL",]
self.dn_attributes = [x.upper() for x in self.dn_attributes]
#
# Attributes that contain the Domain name e.g. 'samba.org'
self.domain_attributes = ["proxyAddresses", "mail", "userPrincipalName", "msExchSmtpFullyQualifiedDomainName", \
"dnsHostName", "networkAddress", "dnsRoot", "servicePrincipalName"]
self.domain_attributes = [x.upper() for x in self.domain_attributes]
def fix_dn(self, s):
res = "%s" % s
if res.upper().endswith(self.con.base_dn.upper()):
res = res[:len(res)-len(self.con.base_dn)] + "${DOMAIN_DN}"
return res
def fix_domain_name(self, s):
res = "%s" % s
if res.upper().endswith(self.con.domain_name.upper()):
res = res[:len(res)-len(self.con.domain_name)] + "${DOMAIN_NAME}"
return res
def fix_netbios_name(self, s):
res = "%s" % s
if res.upper().endswith(self.con.netbios_name.upper()):
res = res[:len(res)-len(self.con.netbios_name)] + "${NETBIOS_NAME}"
return res
def __eq__(self, other):
res = True
self.unique_attrs = []
self.df_value_attrs = []
other.unique_attrs = []
if self.attributes.keys() != other.attributes.keys():
print 4*" " + "Different number of attributes!"
#
title = 4*" " + "Attributes found only in %s:" % self.con.base_dn
for x in self.attributes.keys():
if not x.upper() in [q.upper() for q in other.attributes.keys()]:
if title:
print title
title = None
print 8*" " + x
self.unique_attrs.append(x)
#
title = 4*" " + "Attributes found only in %s:" % other.con.base_dn
for x in other.attributes.keys():
if not x.upper() in [q.upper() for q in self.attributes.keys()]:
if title:
print title
title = None
print 8*" " + x
other.unique_attrs.append(x)
#
res = False
#
missing_attrs = [x.upper() for x in self.unique_attrs]
missing_attrs += [x.upper() for x in other.unique_attrs]
title = 4*" " + "Difference in attribute values:"
for x in self.attributes.keys():
if x.upper() in self.ignore_attributes or x.upper() in missing_attrs:
continue
if isinstance(self.attributes[x], list) and isinstance(other.attributes[x], list):
self.attributes[x] = sorted(self.attributes[x])
other.attributes[x] = sorted(other.attributes[x])
if self.attributes[x] != other.attributes[x]:
p = None
q = None
# Attribute values that are list that contain DN based values that may differ
if x.upper() in self.dn_attributes:
p = [self.fix_dn(j) for j in self.attributes[x]]
q = [other.fix_dn(j) for j in other.attributes[x]]
if p == q:
continue
elif x.upper() in ["DC",]:
# Usually displayed as the first part of the Domain DN
p = [self.con.domain_name.split(".")[0] == j for j in self.attributes[x]]
q = [other.con.domain_name.split(".")[0] == j for j in other.attributes[x]]
if p == q:
continue
# Attributes that contain the Domain name in them
elif x.upper() in self.domain_attributes:
p = [self.fix_domain_name(j) for j in self.attributes[x]]
q = [other.fix_domain_name(j) for j in other.attributes[x]]
if p == q:
continue
#
if title:
print title
title = None
if p and q:
print 8*" " + x + " -> \n* %s\n* %s" % (p, q)
else:
print 8*" " + x + " -> \n* %s\n* %s" % (self.attributes[x], other.attributes[x])
self.df_value_attrs.append(x)
res = False
#
if self.unique_attrs + other.unique_attrs != []:
assert self.unique_attrs != other.unique_attrs
self.summary["unique_attrs"] += self.unique_attrs
self.summary["df_value_attrs"] += self.df_value_attrs
other.summary["unique_attrs"] += other.unique_attrs
other.summary["df_value_attrs"] += self.df_value_attrs # they are the same
#
return res
class AdBundel(object):
def __init__(self, con, context=None, dn_list=None):
self.con = con
self.summary = {}
self.summary["unique_attrs"] = []
self.summary["df_value_attrs"] = []
self.summary["known_ignored_dn"] = []
self.summary["abnormal_ignored_dn"] = []
if dn_list:
self.dn_list = dn_list
elif context.upper() in ["DOMAIN", "CONFIGURATION", "SCHEMA"]:
self.context = context.upper()
self.dn_list = self.get_dn_list(context)
else:
raise Exception("Unknown initialization data for AdBundel().")
self.dn_list = [x[:len(x)-len(self.con.base_dn)] + "${DOMAIN_DN}" for x in self.dn_list]
self.dn_list = list(set(self.dn_list))
self.dn_list = sorted(self.dn_list)
self.size = len(self.dn_list)
def update_size(self):
self.size = len(self.dn_list)
self.dn_list = sorted(self.dn_list)
def __eq__(self, other):
res = True
if self.size != other.size:
print "Lists have different size: %s != %s" % (self.size, other.size)
res = False
#
print "\n* DNs found only in %s:" % self.con.base_dn
for x in self.dn_list:
if not x.upper() in [q.upper() for q in other.dn_list]:
print " %s" % x
self.dn_list[self.dn_list.index(x)] = ""
self.dn_list = [x for x in self.dn_list if x]
#
print "\n* DNs found only in %s:" % other.con.base_dn
for x in other.dn_list:
if not x.upper() in [q.upper() for q in self.dn_list]:
print " %s" % x
other.dn_list[other.dn_list.index(x)] = ""
other.dn_list = [x for x in other.dn_list if x]
#
self.update_size()
other.update_size()
print "%s == %s" % (self.size, other.size)
assert self.size == other.size
assert sorted([x.upper() for x in self.dn_list]) == sorted([x.upper() for x in other.dn_list])
index = 0
while index < self.size:
skip = False
try:
object1 = AdObject(self.con, self.dn_list[index], self.summary)
except LdbError, (ERR_NO_SUCH_OBJECT, _):
print "\n!!! Object not found:", self.dn_list[index]
skip = True
try:
object2 = AdObject(other.con, other.dn_list[index], other.summary)
except LdbError, (ERR_NO_SUCH_OBJECT, _):
print "\n!!! Object not found:", other.dn_list[index]
skip = True
if skip:
index += 1
continue
print "\nComparing:\n'%s'\n'%s'" % (object1.dn, object2.dn)
if object1 == object2:
print 4*" " + "OK"
else:
print 4*" " + "FAILED"
res = False
self.summary = object1.summary
other.summary = object2.summary
index += 1
#
return res
def is_ignored(self, dn):
ignore_list = {
"DOMAIN" : [
# Default naming context
"^CN=BCKUPKEY_[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12} Secret,CN=System,",
"^CN=BCKUPKEY_[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12} Secret,CN=System,",
"^CN=Domain System Volume (SYSVOL share),CN=NTFRS Subscriptions,CN=.+?,OU=Domain Controllers,",
"^CN=NTFRS Subscriptions,CN=.+?,OU=Domain Controllers,",
"^CN=RID Set,CN=.+?,OU=Domain Controllers,",
"^CN=.+?,CN=Domain System Volume \(SYSVOL share\),CN=File Replication Service,CN=System,",
"^CN=.+?,OU=Domain Controllers,",
# After Exchange preps
"^CN=OWAScratchPad.[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}.,CN=Microsoft Exchange System Objects,",
"^CN=StoreEvents.[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}.,CN=Microsoft ExchangeSystem Objects,",
"^CN=SystemMailbox.[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}.,CN=Microsoft Exchange System Objects,",
],
# Configuration naming context
"CONFIGURATION" : [
"^CN=[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12},CN=Partitions,CN=Configuration,",
"^CN=[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12},CN=Partitions,CN=Configuration,",
"^CN=NTDS Settings,CN=.+?,CN=Servers,CN=Default-First-Site-Name,CN=Sites,CN=Configuration,",
"^CN=.+?,CN=Servers,CN=Default-First-Site-Name,CN=Sites,CN=Configuration,",
"^CN=%s,CN=Partitions,CN=Configuration," % self.con.netbios_name,
# This one has to be investigated
"^CN=Default Query Policy,CN=Query-Policies,CN=Directory Service,CN=WindowsNT,CN=Services,CN=Configuration,",
# After Exchange preps
"^CN=SMTP \(.+?-\{[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}\}\),CN=Connections,CN=First Organization,CN=Microsoft Exchange,CN=Services,CN=Configuration,", # x 3 times
],
"SCHEMA" : [
],
}
#ignore_list = {}
for x in ignore_list[self.context]:
if re.match(x.upper(), dn.upper()):
return True
return False
def get_dn_list(self, context):
""" Query LDAP server about the DNs of certain naming self.con.ext Domain (or Default), Configuration, Schema.
Parse all DNs and filter those that are 'strange' or abnormal.
"""
if context.upper() == "DOMAIN":
search_base = "%s" % self.con.base_dn
elif context.upper() == "CONFIGURATION":
search_base = "CN=Configuration,%s" % self.con.base_dn
elif context.upper() == "SCHEMA":
search_base = "CN=Schema,CN=Configuration,%s" % self.con.base_dn
dn_list = []
res = self.con.ldb.search(base=search_base, scope=SCOPE_SUBTREE, attrs=["dn"])
for x in res:
dn_list.append(x["dn"].get_linearized())
#
global summary
#
print "\nIgnored (strange) DNs in %s:" % self.con.base_dn
for x in dn_list:
xx = "".join(re.findall("[Cc][Nn]=.*?,", x)) \
+ "".join(re.findall("[Oo][Uu]=.*?,", x)) \
+ "".join(re.findall("[Dd][Cc]=.*?,", x)) + re.search("([Dd][Cc]=[\w^=]*?$)", x).group()
if x != xx:
print 4*" " + x
dn_list[dn_list.index(x)] = ""
#
print "\nKnown DN ignore list for %s" % self.con.base_dn
for x in dn_list:
if self.is_ignored(x):
print 4*" " + x
dn_list[dn_list.index(x)] = ""
#
dn_list = [x for x in dn_list if x]
return dn_list
def print_summary(self):
self.summary["unique_attrs"] = list(set(self.summary["unique_attrs"]))
self.summary["df_value_attrs"] = list(set(self.summary["df_value_attrs"]))
#
print "\nAttributes found only in %s:" % self.con.base_dn
print "".join([str("\n" + 4*" " + x) for x in self.summary["unique_attrs"]])
#
print "\nAttributes with different values:"
print "".join([str("\n" + 4*" " + x) for x in self.summary["df_value_attrs"]])
self.summary["df_value_attrs"] = []
###
if __name__ == "__main__":
parser = OptionParser("ldapcmp [options] domain|configuration|schema")
sambaopts = options.SambaOptions(parser)
credopts = options.CredentialsOptionsDouble(parser)
parser.add_option_group(credopts)
lp = sambaopts.get_loadparm()
creds = credopts.get_credentials(lp)
creds2 = credopts.get_credentials2(lp)
parser.add_option("", "--host", dest="host",
help="IP of the first LDAP server",)
parser.add_option("", "--host2", dest="host2",
help="IP of the second LDAP server",)
(options, args) = parser.parse_args()
if not (len(args) == 1 and args[0].upper() in ["DOMAIN", "CONFIGURATION", "SCHEMA"]):
parser.error("Incorrect arguments")
con1 = LDAPBase(options.host, creds, lp)
assert len(con1.base_dn) > 0
con2 = LDAPBase(options.host2, creds2, lp)
assert len(con2.base_dn) > 0
b1 = AdBundel(con1, args[0])
b2 = AdBundel(con2, args[0])
if b1 == b2:
print "\n\nFinal result: SUCCESS!"
status = 0
else:
print "\n\nFinal result: FAILURE!"
status = 1
assert len(b1.summary["df_value_attrs"]) == len(b2.summary["df_value_attrs"])
print "\nSUMMARY"
print "---------"
b1.print_summary()
b2.print_summary()
sys.exit(status)
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