Bug 54786 – Include server side sort overlay in LDAP config

Bug 54786 - Include server side sort overlay in LDAP config


Summary:	Include server side sort overlay in LDAP config

Status:	RESOLVED MOVED

Product:	UCS
Classification:	Unclassified
Component:	LDAP
Version:	UCS 5.0
Hardware:	Other Linux

Importance:	P5 enhancement (vote)
Target Milestone:	---
Assigned To:	Florian Best
QA Contact:	UCS maintainers

URL:	https://git.knut.univention.de/univen...
Keywords:

Depends on:
Blocks:	50240
	Show dependency tree / graph

Reported:	2022-05-23 08:49 CEST by Ingo Steuwer
Modified:	2022-11-10 09:45 CET (History)
CC List:	6 users (show)

See Also:	50240 49666
What kind of report is it?:	Feature Request
What type of bug is this?:	---
Who will be affected by this bug?:	---
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Description Ingo Steuwer

2022-05-23 08:49:54 CEST

We should include slapo-sssvlv to allow server side sort, This comes handy in large environments where page results should be used but output is send to user interfaces in a reasonable way.

https://www.openldap.org/software/man.cgi?query=slapo-sssvlv&apropos=0&sektion=0&manpath=OpenLDAP+2.4-Release&format=html%3E

Comment 1 Philipp Hahn

2022-05-23 09:33:06 CEST

UMC already does the sorting itself.

Have you done an impact analysis on the performance? To quote from <man:slapo-sssvlv(5)>:
> Since a complete result set must be generated in memory before sorting can be performed, processing sort requests can have a large impact on the server's memory use.

A such it may be used for DoS.

Also: please help development and provide more details, especially who requested this (ticket#, epic) and where does this request rank compared to all other bugs: <https://forge.univention.org/bugzilla/buglist.cgi?component=LDAP&product=UCS&resolution=--->

Comment 2 Florian Best

2022-05-23 09:45:03 CEST

Patch including UCR variable descriptions in: https://git.knut.univention.de/univention/ucs/-/merge_requests/399

We need this as well for the UDM REST API (Bug #50240). Client code already exists in the UDM REST API.