881773 – mmap cache needs update after db changes

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Bug 881773 - mmap cache needs update after db changes

Summary: mmap cache needs update after db changes

Keywords:
Status:	CLOSED ERRATA
Alias:	None
Product:	Red Hat Enterprise Linux 6
Classification:	Red Hat
Component:	sssd
Sub Component:
Version:	6.4
Hardware:	Unspecified
OS:	Unspecified
Priority:	unspecified
Severity:	unspecified
Target Milestone:	rc
Target Release:	---
Assignee:	Jakub Hrozek
QA Contact:	Kaushik Banerjee
Docs Contact:
URL:
Whiteboard:
Depends On:
Blocks:	886216
TreeView+	depends on / blocked

Reported:	2012-11-29 14:45 UTC by Dmitri Pal
Modified:	2020-05-02 17:07 UTC (History)
CC List:	5 users (show)
Fixed In Version:	sssd-1.9.2-34.el6
Doc Type:	Bug Fix
Doc Text:	No documentation needed.
Clone Of:
Environment:
Last Closed:	2013-02-21 09:41:29 UTC
Target Upstream Version:
Embargoed:

Attachments	(Terms of Use)

Links
System	ID	Private	Priority	Status	Summary	Last Updated
Github	SSSD sssd issues 2713	0	None	None	None	2020-05-02 17:07:41 UTC
Red Hat Product Errata	RHSA-2013:0508	0	normal	SHIPPED_LIVE	Low: sssd security, bug fix and enhancement update	2013-02-20 21:30:10 UTC

Description Dmitri Pal 2012-11-29 14:45:51 UTC

This bug is created as a clone of upstream ticket:
https://fedorahosted.org/sssd/ticket/1671

In the nested groups case we use the memberof plugin to make changes db-wise for changing memberships, however this means changes are not reflected in the mmap cache until the mmap entry naturally expires and is refreshed.
Upon db changes we should make a quick search right after the memberof plugin has done it's work (using modifytimestamp ?) and expire any mmap cache entry that has been chahnged in the db.
This will cause th first app that need s the entry to call into sssd and refresh it with proper values.

Comment 2 Kaushik Banerjee 2013-01-15 08:26:53 UTC

Verified in version 1.9.2-68

Output from beaker automation run:
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
:: [   LOG    ] :: 2307bis_011 - bz881773 - mmap cache needs update after db changes
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::

Stopping sssd: [  OK  ]
Starting sssd: [  OK  ]
[  OK  ]
:: [09:30:06] ::  Sleeping for 5 seconds
adding new entry "uid=mof_user8,dc=example,dc=com"

adding new entry "cn=mofuser8_grp1,dc=example,dc=com"

adding new entry "cn=mofuser8_grp2,dc=example,dc=com"

88881 88882
:: [   PASS   ] :: Running 'id -G mof_user8 | grep 88881 | grep 88882'
adding new entry "cn=mofuser8_grp3,dc=example,dc=com"

spawn ssh -q -l mof_user8 localhost echo 'login successful'
mof_user8@localhost's password: 
Could not chdir to home directory /home/mof_user8: No such file or directory
login successful
:: [   PASS   ] :: Authentication successful, as expected
:: [   PASS   ] :: Running 'auth_success mof_user8 Secret123'
88881 88882 88883
:: [   PASS   ] :: Running 'id -G mof_user8 | grep 88881 | grep 88882 | grep 88883'
'27ea4a42-a708-4f43-ada4-af1b27e019ca'
2307bis-011-bz881773-mmap-cache-needs-update-after-db-changes result: PASS

Comment 3 errata-xmlrpc 2013-02-21 09:41:29 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

http://rhn.redhat.com/errata/RHSA-2013-0508.html

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