[PATCH] samba-tool dbcheck: handle missing objectClass
Felix Botner
botner at univention.de
Tue Feb 25 02:22:30 MST 2014
Hi,
Am Dienstag, 25. Februar 2014, 09:31:47 schrieb Andrew Bartlett:
> On Mon, 2014-02-24 at 14:08 +0100, Felix Botner wrote:
> > In several cases we have seen objects without the objectClass attribute.
> > Here the suggestion for a patch to find such objects in "samba-tool
> > dbcheck" with the option to delete them.
>
> Do these objects have an objectCategory we could use to attempt to
> reconstruct the objectClass? Alternately, should we guess what
> objectClass it is based on the rest of the object?
>
> I'm not convinced that there is anything we can do that is safer than
> deleting the object, but even that isn't a particularly great outcome.
The objects looks like this (unfortunately, i don't have an example with the
"objectCategory").
(a)
dn: cn=supergroup\0ADEL:84d4159b-4b1c-4b08-ba30-ded58028a0bd,CN=Deleted
Objects,DC=autotest093,DC=local
changetype: add
cn:: c3VwZXJncm91cApERUw6ODRkNDE1OWItNGIxYy00YjA4LWJhMzAtZGVkNTgwMjhhMGJk
instanceType: 4
whenChanged: 20140111115021.0Z
uSNCreated: 4609
isDeleted: TRUE
uSNChanged: 4609
name:: c3VwZXJncm91cApERUw6ODRkNDE1OWItNGIxYy00YjA4LWJhMzAtZGVkNTgwMjhhMGJk
objectGUID: 84d4159b-4b1c-4b08-ba30-ded58028a0bd
replPropertyMetaData:: AQAAAAAAAAAIAAAAAAAAAAEAAgABAAAA/MDhCAMAAADvSo7lMKnSRLC
iiDtr2TlTyxMAAAAAAAABEgAAAAAAADAAAgABAAAA/cDhCAMAAADvSo7lMKnSRLCiiDtr2TlTzRMA
AAAAAAABEgAAAAAAAAEACQACAAAA/cDhCAMAAADvSo7lMKnSRLCiiDtr2TlTzRMAAAAAAAABEgAAA
AAAAC4BCQADAAAA/cDhCAMAAADvSo7lMKnSRLCiiDtr2TlTzRMAAAAAAAABEgAAAAAAAA0DCQABAA
AA/cDhCAMAAADvSo7lMKnSRLCiiDtr2TlTzRMAAAAAAAABEgAAAAAAAA4DCQACAAAA/cDhCAMAAAD
vSo7lMKnSRLCiiDtr2TlTzRMAAAAAAAABEgAAAAAAAAoICQABAAAA/cDhCAMAAADvSo7lMKnSRLCi
iDtr2TlTzRMAAAAAAAABEgAAAAAAAAMAAAACAAAA/cDhCAMAAADvSo7lMKnSRLCiiDtr2TlTzRMAA
AAAAAABEgAAAAAAAA==
lastKnownParent: <GUID=aeb34709-b4cd-47f0-9b7b-e3876e4bcd78>;CN=Groups,DC=auto
test093,DC=local
isRecycled: TRUE
(b)
# record 1
dn: CN=2c4fcffe-f0c2-4e0f-b852-c9fe2805732f\0ADEL:60f25113-97be-4070-
b8e1-61289f8469df,CN=Deleted Objects,CN=Configuration,DC=sec,DC=lan
cn:: MmM0ZmNmZmUtZjBjMi00ZTBmLWI4NTItYzlmZTI4MDU3MzJmCkRFTDo2MGYyNTExMy05N2JlL
TQwNzAtYjhlMS02MTI4OWY4NDY5ZGY=
instanceType: 4
whenChanged: 20130402150722.0Z
uSNCreated: 1170624
isDeleted: TRUE
uSNChanged: 1170624
name:: MmM0ZmNmZmUtZjBjMi00ZTBmLWI4NTItYzlmZTI4MDU3MzJmCkRFTDo2MGYyNTExMy05N2J
lLTQwNzAtYjhlMS02MTI4OWY4NDY5ZGY=
objectGUID: 60f25113-97be-4070-b8e1-61289f8469df
lastKnownParent: CN=NTDS Settings,CN=UCS3-DC0,CN=Servers,CN=Roswell,CN=Sites,C
N=Configuration,DC=sec,DC=lan
isRecycled: TRUE
distinguishedName: CN=2c4fcffe-f0c2-4e0f-b852-c9fe2805732f\0ADEL:60f25113-97be
-4070-b8e1-61289f8469df,CN=Deleted Objects,CN=Configuration,DC=sec,DC=lan
> What objects does this happen on in general?
I am not sure and we cannot reproduce this on a regular basis but it happens
in multiserver environments (after the replication) and all objects lacking
the objectClass have been "\0ADEL:" objects.
Attachted you can find the replPropertyMetaData of object (b) but I can't see
the objectClass attribut there. Is this correct?
Thanks
--
*** CeBIT 2014 - 10. bis 14. März in Hannover: Univention in Halle 6 (H15) ***
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Felix Botner
Open Source Software Engineer
Univention GmbH
be open
Mary-Somerville-Str.1
28359 Bremen
Tel. : +49 421 22232-0
Fax : +49 421 22232-99
<botner at univention.de>
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Steuer-Nr.: 71-597-02876
-------------- next part --------------
dn: CN=2c4fcffe-f0c2-4e0f-b852-c9fe2805732f\0ADEL:60f25113-97be-4070-b8e1-61289f8469df,CN=Deleted Objects,CN=Configuration,DC=sec,DC=lan
replPropertyMetaData:: AQAAAAAAAAALAAAAAAAAAAEAAgABAAAArkRiBwMAAADpCBli2rsTSp+iDBFXq3VvvkIAAAAAAADA3BEAAAAAADAAAgABAAAAKoVrBwMAAADpCBli2rsTSp+iDBFXq3VvJEUAAAAAAADA3BEAAAAAAKkAAgACAAAAKoVrBwMAAADpCBli2rsTSp+iDBFXq3VvJEUAAAAAAADA3BEAAAAAAAEACQACAAAAKoVrBwMAAADpCBli2rsTSp+iDBFXq3VvJEUAAAAAAADA3BEAAAAAACQACQACAAAAKoVrBwMAAADpCBli2rsTSp+iDBFXq3VvJEUAAAAAAADA3BEAAAAAACgACQACAAAAKoVrBwMAAADpCBli2rsTSp+iDBFXq3VvJEUAAAAAAADA3BEAAAAAADMBCQACAAAAKoVrBwMAAADpCBli2rsTSp+iDBFXq3VvJEUAAAAAAADA3BEAAAAAAA0DCQABAAAAKoVrBwMAAADpCBli2rsTSp+iDBFXq3VvJEUAAAAAAADA3BEAAAAAAA4DCQACAAAAKoVrBwMAAADpCBli2rsTSp+iDBFXq3VvJEUAAAAAAADA3BEAAAAAAAoICQABAAAAKoVrBwMAAADpCBli2rsTSp+iDBFXq3VvJEUAAAAAAADA3BEAAAAAAAMAAAACAAAAKoVrBwMAAADpCBli2rsTSp+iDBFXq3VvJEUAAAAAAADA3BEAAAAAAA==
# decoded:
# replPropertyMetaDataBlob: struct replPropertyMetaDataBlob
# version : 0x00000001 (1)
# reserved : 0x00000000 (0)
# ctr : union replPropertyMetaDataCtr(case 1)
# ctr1: struct replPropertyMetaDataCtr1
# count : 0x0000000b (11)
# reserved : 0x00000000 (0)
# array: ARRAY(11)
# array: struct replPropertyMetaData1
# attid : DRSUAPI_ATTID_instanceType (0x20001)
# version : 0x00000001 (1)
# originating_change_time : Tue Mar 26 08:41:50 2013 MDT
# originating_invocation_id: 621908e9-bbda-4a13-9fa2-0c1157ab756f
# originating_usn : 0x00000000000042be (17086)
# local_usn : 0x000000000011dcc0 (1170624)
# array: struct replPropertyMetaData1
# attid : DRSUAPI_ATTID_isDeleted (0x20030)
# version : 0x00000001 (1)
# originating_change_time : Tue Apr 2 09:07:22 2013 MDT
# originating_invocation_id: 621908e9-bbda-4a13-9fa2-0c1157ab756f
# originating_usn : 0x0000000000004524 (17700)
# local_usn : 0x000000000011dcc0 (1170624)
# array: struct replPropertyMetaData1
# attid : DRSUAPI_ATTID_showInAdvancedViewOnly (0x200A9)
# version : 0x00000002 (2)
# originating_change_time : Tue Apr 2 09:07:22 2013 MDT
# originating_invocation_id: 621908e9-bbda-4a13-9fa2-0c1157ab756f
# originating_usn : 0x0000000000004524 (17700)
# local_usn : 0x000000000011dcc0 (1170624)
# array: struct replPropertyMetaData1
# attid : DRSUAPI_ATTID_name (0x90001)
# version : 0x00000002 (2)
# originating_change_time : Tue Apr 2 09:07:22 2013 MDT
# originating_invocation_id: 621908e9-bbda-4a13-9fa2-0c1157ab756f
# originating_usn : 0x0000000000004524 (17700)
# local_usn : 0x000000000011dcc0 (1170624)
# array: struct replPropertyMetaData1
# attid : UNKNOWN_ENUM_VALUE (0x90024)
# version : 0x00000002 (2)
# originating_change_time : Tue Apr 2 09:07:22 2013 MDT
# originating_invocation_id: 621908e9-bbda-4a13-9fa2-0c1157ab756f
# originating_usn : 0x0000000000004524 (17700)
# local_usn : 0x000000000011dcc0 (1170624)
# array: struct replPropertyMetaData1
# attid : UNKNOWN_ENUM_VALUE (0x90028)
# version : 0x00000002 (2)
# originating_change_time : Tue Apr 2 09:07:22 2013 MDT
# originating_invocation_id: 621908e9-bbda-4a13-9fa2-0c1157ab756f
# originating_usn : 0x0000000000004524 (17700)
# local_usn : 0x000000000011dcc0 (1170624)
# array: struct replPropertyMetaData1
# attid : DRSUAPI_ATTID_options (0x90133)
# version : 0x00000002 (2)
# originating_change_time : Tue Apr 2 09:07:22 2013 MDT
# originating_invocation_id: 621908e9-bbda-4a13-9fa2-0c1157ab756f
# originating_usn : 0x0000000000004524 (17700)
# local_usn : 0x000000000011dcc0 (1170624)
# array: struct replPropertyMetaData1
# attid : DRSUAPI_ATTID_lastKnownParent (0x9030D)
# version : 0x00000001 (1)
# originating_change_time : Tue Apr 2 09:07:22 2013 MDT
# originating_invocation_id: 621908e9-bbda-4a13-9fa2-0c1157ab756f
# originating_usn : 0x0000000000004524 (17700)
# local_usn : 0x000000000011dcc0 (1170624)
# array: struct replPropertyMetaData1
# attid : DRSUAPI_ATTID_objectCategory (0x9030E)
# version : 0x00000002 (2)
# originating_change_time : Tue Apr 2 09:07:22 2013 MDT
# originating_invocation_id: 621908e9-bbda-4a13-9fa2-0c1157ab756f
# originating_usn : 0x0000000000004524 (17700)
# local_usn : 0x000000000011dcc0 (1170624)
# array: struct replPropertyMetaData1
# attid : DRSUAPI_ATTID_isRecycled (0x9080A)
# version : 0x00000001 (1)
# originating_change_time : Tue Apr 2 09:07:22 2013 MDT
# originating_invocation_id: 621908e9-bbda-4a13-9fa2-0c1157ab756f
# originating_usn : 0x0000000000004524 (17700)
# local_usn : 0x000000000011dcc0 (1170624)
# array: struct replPropertyMetaData1
# attid : DRSUAPI_ATTID_cn (0x3)
# version : 0x00000002 (2)
# originating_change_time : Tue Apr 2 09:07:22 2013 MDT
# originating_invocation_id: 621908e9-bbda-4a13-9fa2-0c1157ab756f
# originating_usn : 0x0000000000004524 (17700)
# local_usn : 0x000000000011dcc0 (1170624)
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