Bug 1497018

Summary:	LDB_MODULES_PATH not set by package (ldb or samba)
Product:	[Fedora] Fedora	Reporter:	linforpros
Component:	samba4	Assignee:	Orphan Owner <extras-orphan>
Status:	CLOSED NOTABUG	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	urgent	Docs Contact:
Priority:	unspecified
Version:	27	CC:	abokovoy, asn, extras-orphan, gdeschner, sbose, sergio, ssorce
Target Milestone:	---
Target Release:	---
Hardware:	x86_64
OS:	Linux
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Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2017-09-29 05:20:28 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description linforpros 2017-09-29 01:55:38 UTC

Description of problem:
LDB_MODULES_PATH not set in ldb-tools-1.2.1-3.fc27.x86_64 or samba-common-libs-4.7.0-12.fc27.x86_64


Version-Release number of selected component (if applicable):
ldb-tools-1.2.1-3.fc27.x86_64
rpm -qf /usr/lib64/samba/ldb/
samba-common-libs-4.7.0-12.fc27.x86_64


How reproducible:
Install samba as ADDC with samba-tools
ldbsearch -H /var/lib/samba/private/sam.ldb

Steps to Reproduce:
1. ldbsearch -H /var/lib/samba/private/sam.ldb
2.
3.

Actual results:
WARNING: Module [samba_dsdb] not found - do you need to set LDB_MODULES_PATH?
Unable to load modules for /var/lib/samba/private/sam.ldb: (null)
Failed to connect to /var/lib/samba/private/sam.ldb - (null)


Expected results:
Records shoud be displayed

Additional info:
export LDB_MODULES_PATH=/usr/lib64/samba/ldb

temporarily fixes the problem, until the next reboot.

Comment 1 Alexander Bokovoy 2017-09-29 05:20:28 UTC

ldb-tools is a general package, not tied too much to Samba itself. SSSD, for example, while using ldb database, does not need modules from /usr/lib64/samba/ldb for its own operation. It has own modules that it installs into /usr/lib64/ldb/modules/ldb.

As result, you need to know what you do when looking into a particular application's ldb databases. Samba does set up own LDB_MODULES_PATH on start so that its modules used correctly.

This piece of information probably needs to be made a part of Samba AD DC documentation upstream.

Comment 2 Sergio Basto 2019-02-21 05:55:13 UTC

BTW I got same problem with my custom Samba AD on Centos 7 [1] , my samba use and provide internal ldb-tools 

I can't start sssd with set or export LDB_MODULES_PATH=/usr/lib64/ldb/modules/ldb/ [2]

looking for .spec code [3] ./configure --with-modulesdir=%{_libdir}/ldb/modules
when in my samba.spec use --with-modulesdir=%{_libdir}/samba  
and that makes the difference 

fedora package reads /usr/lib64/ldb/modules/ldb/memberof.so

i.e. to work without exports ldb modules must be install in same directory of sssd [4]




[1]
https://copr.fedorainfracloud.org/coprs/sergiomb/SambaAD/

[2]
LDB_MODULES_PATH=/usr/lib64/ldb/modules/ldb/ ldbsearch -H  /var/lib/sss/db/cache_domain.local.ldb (works)

[3]
https://src.fedoraproject.org/rpms/libldb/blob/master/f/libldb.spec

[4]
rpm -qf  /usr/lib64/ldb/modules/ldb/*
libldb-1.3.4-1.el7.x86_64
sssd-common-1.16.0-19.el7.x86_64
libldb-1.3.4-1.el7.x86_64
libldb-1.3.4-1.el7.x86_64
libldb-1.3.4-1.el7.x86_64
libldb-1.3.4-1.el7.x86_64
libldb-1.3.4-1.el7.x86_64
libldb-1.3.4-1.el7.x86_64
libldb-1.3.4-1.el7.x86_64

Comment 3 Sergio Basto 2019-04-09 02:11:32 UTC

(*) with set -> without set

Comment 4 Sergio Basto 2019-04-10 04:42:44 UTC

the easy way seems add  /usr/lib64/ldb/modules/ldb/memberof.so to other ldb modules

cd /usr/lib64/samba/ldb/
ln -s /usr/lib64/ldb/modules/ldb/memberof.so .