1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
|
#!/usr/bin/env python
#
# Helpers for provision stuff
# Copyright (C) Matthieu Patou <mat@matws.net> 2009-2010
#
# Based on provision a Samba4 server by
# Copyright (C) Jelmer Vernooij <jelmer@samba.org> 2007-2008
# Copyright (C) Andrew Bartlett <abartlet@samba.org> 2008
#
#
# 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 string
import re
import shutil
import samba
from samba import Ldb, version, ntacls
from samba.dsdb import DS_DOMAIN_FUNCTION_2000
from ldb import SCOPE_SUBTREE, SCOPE_ONELEVEL, SCOPE_BASE
import ldb
from samba.provision import (ProvisionNames, provision_paths_from_lp,
getpolicypath, set_gpo_acl, create_gpo_struct,
FILL_FULL, provision, ProvisioningError,
setsysvolacl, secretsdb_self_join)
from samba.dcerpc import misc, security, xattr
from samba.dcerpc.misc import SEC_CHAN_BDC
from samba.ndr import ndr_unpack
from samba.samdb import SamDB
# All the ldb related to registry are commented because the path for them is relative
# in the provisionPath object
# And so opening them create a file in the current directory which is not what we want
# I still keep them commented because I plan soon to make more cleaner
ERROR = -1
SIMPLE = 0x00
CHANGE = 0x01
CHANGESD = 0x02
GUESS = 0x04
PROVISION = 0x08
CHANGEALL = 0xff
hashAttrNotCopied = { "dn": 1, "whenCreated": 1, "whenChanged": 1,
"objectGUID": 1, "uSNCreated": 1,
"replPropertyMetaData": 1, "uSNChanged": 1,
"parentGUID": 1, "objectCategory": 1,
"distinguishedName": 1, "nTMixedDomain": 1,
"showInAdvancedViewOnly": 1, "instanceType": 1,
"msDS-Behavior-Version":1, "nextRid":1, "cn": 1,
"versionNumber":1, "lmPwdHistory":1, "pwdLastSet": 1,
"ntPwdHistory":1, "unicodePwd":1,"dBCSPwd":1,
"supplementalCredentials":1, "gPCUserExtensionNames":1,
"gPCMachineExtensionNames":1,"maxPwdAge":1, "secret":1,
"possibleInferiors":1, "privilege":1,
"sAMAccountType":1 }
class ProvisionLDB(object):
def __init__(self):
self.sam = None
self.secrets = None
self.idmap = None
self.privilege = None
self.hkcr = None
self.hkcu = None
self.hku = None
self.hklm = None
def startTransactions(self):
self.sam.transaction_start()
self.secrets.transaction_start()
self.idmap.transaction_start()
self.privilege.transaction_start()
# TO BE DONE
# self.hkcr.transaction_start()
# self.hkcu.transaction_start()
# self.hku.transaction_start()
# self.hklm.transaction_start()
def groupedRollback(self):
ok = True
try:
self.sam.transaction_cancel()
except:
ok = False
try:
self.secrets.transaction_cancel()
except:
ok = False
try:
self.idmap.transaction_cancel()
except:
ok = False
try:
self.privilege.transaction_cancel()
except:
ok = False
return ok
# TO BE DONE
# self.hkcr.transaction_cancel()
# self.hkcu.transaction_cancel()
# self.hku.transaction_cancel()
# self.hklm.transaction_cancel()
def groupedCommit(self):
try:
self.sam.transaction_prepare_commit()
self.secrets.transaction_prepare_commit()
self.idmap.transaction_prepare_commit()
self.privilege.transaction_prepare_commit()
except:
return self.groupedRollback()
# TO BE DONE
# self.hkcr.transaction_prepare_commit()
# self.hkcu.transaction_prepare_commit()
# self.hku.transaction_prepare_commit()
# self.hklm.transaction_prepare_commit()
try:
self.sam.transaction_commit()
self.secrets.transaction_commit()
self.idmap.transaction_commit()
self.privilege.transaction_commit()
except:
return self.groupedRollback()
# TO BE DONE
# self.hkcr.transaction_commit()
# self.hkcu.transaction_commit()
# self.hku.transaction_commit()
# self.hklm.transaction_commit()
return True
def get_ldbs(paths, creds, session, lp):
"""Return LDB object mapped on most important databases
:param paths: An object holding the different importants paths for provision object
:param creds: Credential used for openning LDB files
:param session: Session to use for openning LDB files
:param lp: A loadparam object
:return: A ProvisionLDB object that contains LDB object for the different LDB files of the provision"""
ldbs = ProvisionLDB()
ldbs.sam = SamDB(paths.samdb, session_info=session, credentials=creds, lp=lp, options=["modules:samba_dsdb"])
ldbs.secrets = Ldb(paths.secrets, session_info=session, credentials=creds, lp=lp)
ldbs.idmap = Ldb(paths.idmapdb, session_info=session, credentials=creds, lp=lp)
ldbs.privilege = Ldb(paths.privilege, session_info=session, credentials=creds, lp=lp)
# ldbs.hkcr = Ldb(paths.hkcr, session_info=session, credentials=creds, lp=lp)
# ldbs.hkcu = Ldb(paths.hkcu, session_info=session, credentials=creds, lp=lp)
# ldbs.hku = Ldb(paths.hku, session_info=session, credentials=creds, lp=lp)
# ldbs.hklm = Ldb(paths.hklm, session_info=session, credentials=creds, lp=lp)
return ldbs
def usn_in_range(usn, range):
"""Check if the usn is in one of the range provided.
To do so, the value is checked to be between the lower bound and
higher bound of a range
:param usn: A integer value corresponding to the usn that we want to update
:param range: A list of integer representing ranges, lower bounds are in
the even indices, higher in odd indices
:return: True if the usn is in one of the range, False otherwise
"""
idx = 0
cont = True
ok = False
while cont:
if idx == len(range):
cont = False
continue
if usn < int(range[idx]):
if idx %2 == 1:
ok = True
cont = False
if usn == int(range[idx]):
cont = False
ok = True
idx = idx + 1
return ok
def get_paths(param, targetdir=None, smbconf=None):
"""Get paths to important provision objects (smb.conf, ldb files, ...)
:param param: Param object
:param targetdir: Directory where the provision is (or will be) stored
:param smbconf: Path to the smb.conf file
:return: A list with the path of important provision objects"""
if targetdir is not None:
etcdir = os.path.join(targetdir, "etc")
if not os.path.exists(etcdir):
os.makedirs(etcdir)
smbconf = os.path.join(etcdir, "smb.conf")
if smbconf is None:
smbconf = param.default_path()
if not os.path.exists(smbconf):
raise ProvisioningError("Unable to find smb.conf")
lp = param.LoadParm()
lp.load(smbconf)
paths = provision_paths_from_lp(lp, lp.get("realm"))
return paths
def update_policyids(names, samdb):
"""Update policy ids that could have changed after sam update
:param names: List of key provision parameters
:param samdb: An Ldb object conntected with the sam DB
"""
# policy guid
res = samdb.search(expression="(displayName=Default Domain Policy)",
base="CN=Policies,CN=System," + str(names.rootdn),
scope=SCOPE_ONELEVEL, attrs=["cn","displayName"])
names.policyid = str(res[0]["cn"]).replace("{","").replace("}","")
# dc policy guid
res2 = samdb.search(expression="(displayName=Default Domain Controllers" \
" Policy)",
base="CN=Policies,CN=System," + str(names.rootdn),
scope=SCOPE_ONELEVEL, attrs=["cn","displayName"])
if len(res2) == 1:
names.policyid_dc = str(res2[0]["cn"]).replace("{","").replace("}","")
else:
names.policyid_dc = None
def find_provision_key_parameters(samdb, secretsdb, idmapdb, paths, smbconf, lp):
"""Get key provision parameters (realm, domain, ...) from a given provision
:param samdb: An LDB object connected to the sam.ldb file
:param secretsdb: An LDB object connected to the secrets.ldb file
:param idmapdb: An LDB object connected to the idmap.ldb file
:param paths: A list of path to provision object
:param smbconf: Path to the smb.conf file
:param lp: A LoadParm object
:return: A list of key provision parameters
"""
names = ProvisionNames()
names.adminpass = None
# NT domain, kerberos realm, root dn, domain dn, domain dns name
names.domain = string.upper(lp.get("workgroup"))
names.realm = lp.get("realm")
basedn = "DC=" + names.realm.replace(".",",DC=")
names.dnsdomain = names.realm.lower()
names.realm = string.upper(names.realm)
# netbiosname
# Get the netbiosname first (could be obtained from smb.conf in theory)
res = secretsdb.search(expression="(flatname=%s)" % \
names.domain,base="CN=Primary Domains",
scope=SCOPE_SUBTREE, attrs=["sAMAccountName"])
names.netbiosname = str(res[0]["sAMAccountName"]).replace("$","")
names.smbconf = smbconf
# That's a bit simplistic but it's ok as long as we have only 3
# partitions
current = samdb.search(expression="(objectClass=*)",
base="", scope=SCOPE_BASE,
attrs=["defaultNamingContext", "schemaNamingContext",
"configurationNamingContext","rootDomainNamingContext"])
names.configdn = current[0]["configurationNamingContext"]
configdn = str(names.configdn)
names.schemadn = current[0]["schemaNamingContext"]
if not (ldb.Dn(samdb, basedn) == (ldb.Dn(samdb,
current[0]["defaultNamingContext"][0]))):
raise ProvisioningError(("basedn in %s (%s) and from %s (%s)"
"is not the same ..." % (paths.samdb,
str(current[0]["defaultNamingContext"][0]),
paths.smbconf, basedn)))
names.domaindn=current[0]["defaultNamingContext"]
names.rootdn=current[0]["rootDomainNamingContext"]
# default site name
res3 = samdb.search(expression="(objectClass=*)",
base="CN=Sites," + configdn, scope=SCOPE_ONELEVEL, attrs=["cn"])
names.sitename = str(res3[0]["cn"])
# dns hostname and server dn
res4 = samdb.search(expression="(CN=%s)" % names.netbiosname,
base="OU=Domain Controllers,%s" % basedn,
scope=SCOPE_ONELEVEL, attrs=["dNSHostName"])
names.hostname = str(res4[0]["dNSHostName"]).replace("." + names.dnsdomain,"")
server_res = samdb.search(expression="serverReference=%s" % res4[0].dn,
attrs=[], base=configdn)
names.serverdn = server_res[0].dn
# invocation id/objectguid
res5 = samdb.search(expression="(objectClass=*)",
base="CN=NTDS Settings,%s" % str(names.serverdn), scope=SCOPE_BASE,
attrs=["invocationID", "objectGUID"])
names.invocation = str(ndr_unpack(misc.GUID, res5[0]["invocationId"][0]))
names.ntdsguid = str(ndr_unpack(misc.GUID, res5[0]["objectGUID"][0]))
# domain guid/sid
res6 = samdb.search(expression="(objectClass=*)", base=basedn,
scope=SCOPE_BASE, attrs=["objectGUID",
"objectSid","msDS-Behavior-Version" ])
names.domainguid = str(ndr_unpack(misc.GUID, res6[0]["objectGUID"][0]))
names.domainsid = ndr_unpack( security.dom_sid, res6[0]["objectSid"][0])
if res6[0].get("msDS-Behavior-Version") is None or \
int(res6[0]["msDS-Behavior-Version"][0]) < DS_DOMAIN_FUNCTION_2000:
names.domainlevel = DS_DOMAIN_FUNCTION_2000
else:
names.domainlevel = int(res6[0]["msDS-Behavior-Version"][0])
# policy guid
res7 = samdb.search(expression="(displayName=Default Domain Policy)",
base="CN=Policies,CN=System," + basedn,
scope=SCOPE_ONELEVEL, attrs=["cn","displayName"])
names.policyid = str(res7[0]["cn"]).replace("{","").replace("}","")
# dc policy guid
res8 = samdb.search(expression="(displayName=Default Domain Controllers" \
" Policy)",
base="CN=Policies,CN=System," + basedn,
scope=SCOPE_ONELEVEL, attrs=["cn","displayName"])
if len(res8) == 1:
names.policyid_dc = str(res8[0]["cn"]).replace("{","").replace("}","")
else:
names.policyid_dc = None
res9 = idmapdb.search(expression="(cn=%s)" % \
(security.SID_BUILTIN_ADMINISTRATORS),
attrs=["xidNumber"])
if len(res9) == 1:
names.wheel_gid = res9[0]["xidNumber"]
else:
raise ProvisioningError("Unable to find uid/gid for Domain Admins rid")
return names
def newprovision(names, setup_dir, creds, session, smbconf, provdir, logger):
"""Create a new provision.
This provision will be the reference for knowing what has changed in the
since the latest upgrade in the current provision
:param names: List of provision parameters
:param setup_dis: Directory where the setup files are stored
:param creds: Credentials for the authentification
:param session: Session object
:param smbconf: Path to the smb.conf file
:param provdir: Directory where the provision will be stored
:param logger: A `Logger`
"""
if os.path.isdir(provdir):
shutil.rmtree(provdir)
os.chdir(os.path.join(setup_dir,".."))
os.mkdir(provdir)
logger.info("Provision stored in %s", provdir)
provision(setup_dir, logger, session, creds, smbconf=smbconf,
targetdir=provdir, samdb_fill=FILL_FULL, realm=names.realm,
domain=names.domain, domainguid=names.domainguid,
domainsid=str(names.domainsid), ntdsguid=names.ntdsguid,
policyguid=names.policyid, policyguid_dc=names.policyid_dc,
hostname=names.netbiosname, hostip=None, hostip6=None,
invocationid=names.invocation, adminpass=names.adminpass,
krbtgtpass=None, machinepass=None, dnspass=None, root=None,
nobody=None, wheel=None, users=None,
serverrole="domain controller", ldap_backend_extra_port=None,
backend_type=None, ldapadminpass=None, ol_mmr_urls=None,
slapd_path=None, setup_ds_path=None, nosync=None,
dom_for_fun_level=names.domainlevel,
ldap_dryrun_mode=None, useeadb=True)
def dn_sort(x, y):
"""Sorts two DNs in the lexicographical order it and put higher level DN
before.
So given the dns cn=bar,cn=foo and cn=foo the later will be return as
smaller
:param x: First object to compare
:param y: Second object to compare
"""
p = re.compile(r'(?<!\\), ?')
tab1 = p.split(str(x))
tab2 = p.split(str(y))
minimum = min(len(tab1), len(tab2))
len1 = len(tab1)-1
len2 = len(tab2)-1
# Note: python range go up to upper limit but do not include it
for i in range(0, minimum):
ret = cmp(tab1[len1-i], tab2[len2-i])
if ret != 0:
return ret
else:
if i == minimum-1:
assert len1!=len2,"PB PB PB" + " ".join(tab1)+" / " + " ".join(tab2)
if len1 > len2:
return 1
else:
return -1
return ret
def identic_rename(ldbobj, dn):
"""Perform a back and forth rename to trigger renaming on attribute that
can't be directly modified.
:param lbdobj: An Ldb Object
:param dn: DN of the object to manipulate
"""
(before, after) = str(dn).split('=', 1)
ldbobj.rename(dn, ldb.Dn(ldbobj, "%s=foo%s" % (before, after)))
ldbobj.rename(ldb.Dn(ldbobj, "%s=foo%s" % (before, after)), dn)
def chunck_acl(acl):
"""Return separate ACE of an ACL
:param acl: A string representing the ACL
:return: A hash with different parts
"""
p = re.compile(r'(\w+)?(\(.*?\))')
tab = p.findall(acl)
hash = {}
hash["aces"] = []
for e in tab:
if len(e[0]) > 0:
hash["flags"] = e[0]
hash["aces"].append(e[1])
return hash
def chunck_sddl(sddl):
""" Return separate parts of the SDDL (owner, group, ...)
:param sddl: An string containing the SDDL to chunk
:return: A hash with the different chunk
"""
p = re.compile(r'([OGDS]:)(.*?)(?=(?:[GDS]:|$))')
tab = p.findall(sddl)
hash = {}
for e in tab:
if e[0] == "O:":
hash["owner"] = e[1]
if e[0] == "G:":
hash["group"] = e[1]
if e[0] == "D:":
hash["dacl"] = e[1]
if e[0] == "S:":
hash["sacl"] = e[1]
return hash
def get_diff_sddls(refsddl, cursddl):
"""Get the difference between 2 sddl
This function split the textual representation of ACL into smaller
chunck in order to not to report a simple permutation as a difference
:param refsddl: First sddl to compare
:param cursddl: Second sddl to compare
:return: A string that explain difference between sddls"""
txt = ""
hash_new = chunck_sddl(cursddl)
hash_ref = chunck_sddl(refsddl)
if hash_new["owner"] != hash_ref["owner"]:
txt = "\tOwner mismatch: %s (in ref) %s" \
"(in current)\n" % (hash_ref["owner"], hash_new["owner"])
if hash_new["group"] != hash_ref["group"]:
txt = "%s\tGroup mismatch: %s (in ref) %s" \
"(in current)\n" % (txt, hash_ref["group"], hash_new["group"])
for part in ["dacl", "sacl"]:
if hash_new.has_key(part) and hash_ref.has_key(part):
# both are present, check if they contain the same ACE
h_new = set()
h_ref = set()
c_new = chunck_acl(hash_new[part])
c_ref = chunck_acl(hash_ref[part])
for elem in c_new["aces"]:
h_new.add(elem)
for elem in c_ref["aces"]:
h_ref.add(elem)
for k in set(h_ref):
if k in h_new:
h_new.remove(k)
h_ref.remove(k)
if len(h_new) + len(h_ref) > 0:
txt = "%s\tPart %s is different between reference" \
" and current here is the detail:\n" % (txt, part)
for item in h_new:
txt = "%s\t\t%s ACE is not present in the" \
" reference\n" % (txt, item)
for item in h_ref:
txt = "%s\t\t%s ACE is not present in the" \
" current\n" % (txt, item)
elif hash_new.has_key(part) and not hash_ref.has_key(part):
txt = "%s\tReference ACL hasn't a %s part\n" % (txt, part)
elif not hash_new.has_key(part) and hash_ref.has_key(part):
txt = "%s\tCurrent ACL hasn't a %s part\n" % (txt, part)
return txt
def update_secrets(newsecrets_ldb, secrets_ldb, messagefunc):
"""Update secrets.ldb
:param newsecrets_ldb: An LDB object that is connected to the secrets.ldb
of the reference provision
:param secrets_ldb: An LDB object that is connected to the secrets.ldb
of the updated provision
"""
messagefunc(SIMPLE, "update secrets.ldb")
reference = newsecrets_ldb.search(expression="dn=@MODULES", base="",
scope=SCOPE_SUBTREE)
current = secrets_ldb.search(expression="dn=@MODULES", base="",
scope=SCOPE_SUBTREE)
assert reference, "Reference modules list can not be empty"
if len(current) == 0:
# No modules present
delta = secrets_ldb.msg_diff(ldb.Message(), reference[0])
delta.dn = reference[0].dn
secrets_ldb.add(reference[0])
else:
delta = secrets_ldb.msg_diff(current[0], reference[0])
delta.dn = current[0].dn
secrets_ldb.modify(delta)
reference = newsecrets_ldb.search(expression="objectClass=top", base="",
scope=SCOPE_SUBTREE, attrs=["dn"])
current = secrets_ldb.search(expression="objectClass=top", base="",
scope=SCOPE_SUBTREE, attrs=["dn"])
hash_new = {}
hash = {}
listMissing = []
listPresent = []
empty = ldb.Message()
for i in range(0, len(reference)):
hash_new[str(reference[i]["dn"]).lower()] = reference[i]["dn"]
# Create a hash for speeding the search of existing object in the
# current provision
for i in range(0, len(current)):
hash[str(current[i]["dn"]).lower()] = current[i]["dn"]
for k in hash_new.keys():
if not hash.has_key(k):
listMissing.append(hash_new[k])
else:
listPresent.append(hash_new[k])
for entry in listMissing:
reference = newsecrets_ldb.search(expression="dn=%s" % entry,
base="", scope=SCOPE_SUBTREE)
current = secrets_ldb.search(expression="dn=%s" % entry,
base="", scope=SCOPE_SUBTREE)
delta = secrets_ldb.msg_diff(empty, reference[0])
for att in hashAttrNotCopied.keys():
delta.remove(att)
messagefunc(CHANGE, "Entry %s is missing from secrets.ldb" % \
reference[0].dn)
for att in delta:
messagefunc(CHANGE, " Adding attribute %s" % att)
delta.dn = reference[0].dn
secrets_ldb.add(delta)
for entry in listPresent:
reference = newsecrets_ldb.search(expression="dn=%s" % entry,
base="", scope=SCOPE_SUBTREE)
current = secrets_ldb.search(expression="dn=%s" % entry, base="",
scope=SCOPE_SUBTREE)
delta = secrets_ldb.msg_diff(current[0], reference[0])
for att in hashAttrNotCopied.keys():
delta.remove(att)
for att in delta:
if att == "name":
messagefunc(CHANGE, "Found attribute name on %s," \
" must rename the DN" % (current[0].dn))
identic_rename(secrets_ldb, reference[0].dn)
else:
delta.remove(att)
for entry in listPresent:
reference = newsecrets_ldb.search(expression="dn=%s" % entry, base="",
scope=SCOPE_SUBTREE)
current = secrets_ldb.search(expression="dn=%s" % entry, base="",
scope=SCOPE_SUBTREE)
delta = secrets_ldb.msg_diff(current[0], reference[0])
for att in hashAttrNotCopied.keys():
delta.remove(att)
for att in delta:
if att == "msDS-KeyVersionNumber":
delta.remove(att)
if att != "dn":
messagefunc(CHANGE,
"Adding/Changing attribute %s to %s" % \
(att, current[0].dn))
delta.dn = current[0].dn
secrets_ldb.modify(delta)
def getOEMInfo(samdb, rootdn):
"""Return OEM Information on the top level
Samba4 use to store version info in this field
:param samdb: An LDB object connect to sam.ldb
:param rootdn: Root DN of the domain
:return: The content of the field oEMInformation (if any)"""
res = samdb.search(expression="(objectClass=*)", base=str(rootdn),
scope=SCOPE_BASE, attrs=["dn", "oEMInformation"])
if len(res) > 0:
info = res[0]["oEMInformation"]
return info
else:
return ""
def updateOEMInfo(samdb, rootdn):
"""Update the OEMinfo field to add information about upgrade
:param samdb: an LDB object connected to the sam DB
:param rootdn: The string representation of the root DN of
the provision (ie. DC=...,DC=...)
"""
res = samdb.search(expression="(objectClass=*)", base=rootdn,
scope=SCOPE_BASE, attrs=["dn", "oEMInformation"])
if len(res) > 0:
info = res[0]["oEMInformation"]
info = "%s, upgrade to %s" % (info, version)
delta = ldb.Message()
delta.dn = ldb.Dn(samdb, str(res[0]["dn"]))
delta["oEMInformation"] = ldb.MessageElement(info, ldb.FLAG_MOD_REPLACE,
"oEMInformation" )
samdb.modify(delta)
def update_gpo(paths, samdb, names, lp, message, force=0):
"""Create missing GPO file object if needed
Set ACL correctly also.
Check ACLs for sysvol/netlogon dirs also
"""
resetacls = False
try:
ntacls.checkset_backend(lp, None, None)
eadbname = lp.get("posix:eadb")
if eadbname is not None and eadbname != "":
try:
attribute = samba.xattr_tdb.wrap_getxattr(eadbname,
paths.sysvol, xattr.XATTR_NTACL_NAME)
except:
attribute = samba.xattr_native.wrap_getxattr(paths.sysvol,
xattr.XATTR_NTACL_NAME)
else:
attribute = samba.xattr_native.wrap_getxattr(paths.sysvol,
xattr.XATTR_NTACL_NAME)
except:
resetacls = True
if force:
resetacls = True
dir = getpolicypath(paths.sysvol, names.dnsdomain, names.policyid)
if not os.path.isdir(dir):
create_gpo_struct(dir)
if names.policyid_dc is None:
raise ProvisioningError("Policy ID for Domain controller is missing")
dir = getpolicypath(paths.sysvol, names.dnsdomain, names.policyid_dc)
if not os.path.isdir(dir):
create_gpo_struct(dir)
# We always reinforce acls on GPO folder because they have to be in sync
# with the one in DS
try:
set_gpo_acl(paths.sysvol, names.dnsdomain, names.domainsid,
names.domaindn, samdb, lp)
except TypeError, e:
message(ERROR, "Unable to set ACLs on policies related objects, if not using posix:eadb, you must be root to do it")
if resetacls:
try:
setsysvolacl(samdb, paths.netlogon, paths.sysvol, names.wheel_gid,
names.domainsid, names.dnsdomain, names.domaindn, lp)
except TypeError, e:
message(ERROR, "Unable to set ACLs on sysvol share, if not using posix:eadb, you must be root to do it")
def delta_update_basesamdb(refsam, sam, creds, session, lp, message):
"""Update the provision container db: sam.ldb
This function is aimed for alpha9 and newer;
:param refsam: Path to the samdb in the reference provision
:param sam: Path to the samdb in the upgraded provision
:param creds: Credential used for openning LDB files
:param session: Session to use for openning LDB files
:param lp: A loadparam object"""
message(SIMPLE,
"Update base samdb by searching difference with reference one")
refsam = Ldb(refsam, session_info=session, credentials=creds,
lp=lp, options=["modules:"])
sam = Ldb(sam, session_info=session, credentials=creds, lp=lp,
options=["modules:"])
empty = ldb.Message()
reference = refsam.search(expression="")
for refentry in reference:
entry = sam.search(expression="dn=%s" % refentry["dn"],
scope=SCOPE_SUBTREE)
if not len(entry):
delta = sam.msg_diff(empty, refentry)
message(CHANGE, "Adding %s to sam db" % str(refentry.dn))
if str(refentry.dn) == "@PROVISION" and\
delta.get(samba.provision.LAST_PROVISION_USN_ATTRIBUTE):
delta.remove(samba.provision.LAST_PROVISION_USN_ATTRIBUTE)
delta.dn = refentry.dn
sam.add(delta)
else:
delta = sam.msg_diff(entry[0], refentry)
if str(refentry.dn) == "@PROVISION" and\
delta.get(samba.provision.LAST_PROVISION_USN_ATTRIBUTE):
delta.remove(samba.provision.LAST_PROVISION_USN_ATTRIBUTE)
if len(delta.items()) > 1:
delta.dn = refentry.dn
sam.modify(delta)
def construct_existor_expr(attrs):
"""Construct a exists or LDAP search expression.
ie (|(foo=*)(bar=*)
:param attrs: List of attribute on which we want to create the search
expression.
:return: A string representing the expression, if attrs is empty an
empty string is returned"""
expr = ""
if len(attrs) > 0:
expr = "(|"
for att in attrs:
expr = "%s(%s=*)"%(expr,att)
expr = "%s)"%expr
return expr
def update_machine_account_password(samdb, secrets_ldb, names):
"""Update (change) the password of the current DC both in the SAM db and in
secret one
:param samdb: An LDB object related to the sam.ldb file of a given provision
:param secrets_ldb: An LDB object related to the secrets.ldb file of a given
provision
:param names: List of key provision parameters"""
expression = "samAccountName=%s$" % names.netbiosname
secrets_msg = secrets_ldb.search(expression=expression,
attrs=["secureChannelType"])
if int(secrets_msg[0]["secureChannelType"][0]) == SEC_CHAN_BDC:
res = samdb.search(expression=expression, attrs=[])
assert(len(res) == 1)
msg = ldb.Message(res[0].dn)
machinepass = samba.generate_random_password(128, 255)
msg["userPassword"] = ldb.MessageElement(machinepass,
ldb.FLAG_MOD_REPLACE,
"userPassword")
samdb.modify(msg)
res = samdb.search(expression=("samAccountName=%s$" % names.netbiosname),
attrs=["msDs-keyVersionNumber"])
assert(len(res) == 1)
kvno = int(str(res[0]["msDs-keyVersionNumber"]))
secChanType = int(secrets_msg[0]["secureChannelType"][0])
secretsdb_self_join(secrets_ldb, domain=names.domain,
realm=names.realm,
domainsid=names.domainsid,
dnsdomain=names.dnsdomain,
netbiosname=names.netbiosname,
machinepass=machinepass,
key_version_number=kvno,
secure_channel_type=secChanType)
else:
raise ProvisioningError("Unable to find a Secure Channel"
"of type SEC_CHAN_BDC")
def search_constructed_attrs_stored(samdb, rootdn, attrs):
"""Search a given sam DB for calculated attributes that are
still stored in the db.
:param samdb: An LDB object pointing to the sam
:param rootdn: The base DN where the search should start
:param attrs: A list of attributes to be searched
:return: A hash with attributes as key and an array of
array. Each array contains the dn and the associated
values for this attribute as they are stored in the
sam."""
hashAtt = {}
expr = construct_existor_expr(attrs)
if expr == "":
return hashAtt
entry = samdb.search(expression=expr, base=ldb.Dn(samdb,str(rootdn)),
scope=SCOPE_SUBTREE, attrs=attrs,
controls=["search_options:1:2","bypassoperational:0"])
if len(entry) == 0:
# Nothing anymore
return hashAtt
for ent in entry:
for att in attrs:
if ent.get(att):
if hashAtt.has_key(att):
hashAtt[att][str(ent.dn).lower()] = str(ent[att])
else:
hashAtt[att] = {}
hashAtt[att][str(ent.dn).lower()] = str(ent[att])
return hashAtt
|