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Missing structural object, ldapadd says it's there, ldapdelete says it isn't



Hi list, I am running @(#) $OpenLDAP: slapd 2.4.45 (Jan 23 2018 08:50:30) $ for authentication.

 

I can authenticate most of my clients, but some of them fail. It seems to be the .net ones, not using fastbind:

One client tries to authenticate from .net, but can't bind. This is in the log:

 

  conn=12475338 fd=15 ACCEPT from IP=192.168.252.131:36473 (IP=0.0.0.0:3890)

  conn=12475338 op=0 BIND dn="uid=wscda,ou=Authentication,o=UNI-C,c=DK" method=128

  conn=12475338 op=0 BIND dn="uid=wscda,ou=Authentication,o=UNI-C,c=DK" mech=SIMPLE ssf=0

  conn=12475338 op=0 RESULT tag=97 err=0 text=

  conn=12475338 op=1 srch base="ou=authentication,o=uni-c,c=dk" scope=0 deref=0 filter="(objectclass=*)"

  conn=12475338 op=1 srch attr=objectclass

  conn=12475338 op=1 search result tag=101 err=0 nentries=0 text=

 

Aha, "ou=authentication,o=uni-c,c=dk" (that default .net auth seems to require) must be missing. Verify that:

 

  ldapsearch -x -H ldaps://host:3891/ -D "..."  -w "..." -s base -b ou=Authentication,o=UNI-C,c=DK objectClass=* + \*

 

Gives me:

 

  # extended LDIF

  #

  # LDAPv3

  # base <ou=Authentication,o=UNI-C,c=DK> with scope baseObject

  # filter: entryUUID=*

  # requesting: + *

  #

 

  # search result

  search: 2

  result: 0 Success

 

  # numResponses: 1

 

With this log-entry:

 

  conn=10181 fd=14 ACCEPT from IP=10.54.43.87:54312 (IP=0.0.0.0:3891)

  conn=10181 fd=14 TLS established tls_ssf=256 ssf=256

  conn=10181 op=0 BIND dn="cn=AuthAdmin,ou=Authentication,o=UNI-C,c=DK" method=128

  conn=10181 op=0 BIND dn="cn=AuthAdmin,ou=Authentication,o=UNI-C,c=DK" mech=SIMPLE ssf=0

  conn=10181 op=0 RESULT tag=97 err=0 text=

  conn=10181 op=1 SRCH base="ou=Authentication,o=UNI-C,c=DK" scope=0 deref=0 filter="( objectClass=*)"

  conn=10181 op=1 SRCH attr=+ *

  conn=10181 op=1 SEARCH RESULT tag=101 err=0 nentries=0 text=

  conn=10181 op=2 UNBIND

 

That is "nentries=0", yup it is missing.

 

I decide to add the missing structural object:

 

  ldapadd -h localhost -p 3890 -f missing.ldif -D "..." -w "..."

 

with missing.ldif:

 

  dn: ou=Authentication,o=UNI-C,c=DK

  ou: Authentication

  objectClass: organizationalUnit

 

Result:

 

  adding new entry "ou=Authentication,o=UNI-C,c=DK"

  ldap_add: Already exists (68)

 

And this log-entry:

 

  conn=10182 op=1 ADD dn="ou=Authentication,o=UNI-C,c=DK"

  slap_queue_csn: queueing 0x7f63c811e390 20180501061454.852525Z#000000#000#000000

  conn=10182 op=1 RESULT tag=105 err=68 text=

 

There or not? I try to delete it:

 

  ldapdelete -h localhost -p 3890 -f missing-delete.ldif -D "..." -w "..."

 

missing-delete.ldif:

 

  ou=Authentication,o=UNI-C,c=DK

 

Result:

 

  ldap_delete: No such object (32)

        matched DN: ou=Authentication,o=UNI-C,c=DK

 

Log:

 

  conn=10184 op=1 DEL dn="ou=Authentication,o=UNI-C,c=DK"

  conn=10184 op=1 RESULT tag=107 err=32 text=

 

I can't add it, beacause it's already there, and I can't delete it, because it isn't there...

I can't figure out what the problem is; maybe som subtle difference between what is in the base and what I am searching for?

I've a feeling that there is a face-palm answer, if so please bear with me.

 

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Med venlig hilsen
Ole Nomann Thomsen
Seniorkonsulent

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