Bug 1309342

Summary:	Wrong permissions set on previous copy of truncated files inside trash directory
Product:	[Community] GlusterFS	Reporter:	Anoop C S <anoopcs>
Component:	trash-xlator	Assignee:	Anoop C S <anoopcs>
Status:	CLOSED CURRENTRELEASE	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	mainline	CC:	bugs, jthottan
Target Milestone:	---	Keywords:	Reopened
Target Release:	---
Hardware:	All
OS:	All
Whiteboard:
Fixed In Version:	glusterfs-3.7.9	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:
Clones:	1313233 (view as bug list)		Environment:
Last Closed:	2016-05-28 05:56:59 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:
Bug Depends On:
Bug Blocks:	1313233

Description Anoop C S 2016-02-17 14:21:17 UTC

Description of problem:

Enabling trash feature for a volume is resulting in wrong permissions being set on previous copy of a truncated file for which a corresponding path does not exists under trash directory. This only happens for the first truncation of file under same directory hierarchy. Subsequent truncations creates previous copies with correct permissions.

Version-Release number of selected component (if applicable):
mainline

How reproducible:
always

Steps to Reproduce:
1. Create, start and mount a simple distributed volume.
2. Enable trash for the volume and change to mount point.
# gluster volume set <VOLNAME> features.trash on
3. Create a temporary directory under root.
# mkdir tmp
4. Create a file inside tmp/ with some content.
# echo 'Hello, World' > tmp/foo
5. Change permissions on tmp/foo
# chmod 0777 tmp/foo
5. truncate tmp/foo
# truncate -s 3 tmp/foo
6. Check the permissions of the previous copy of foo created inside .trashcan/tmp/
# ls -l .trashcan/tmp

Actual results:
.trashcan/tmp/foo_xxxx has different permissions than that of tmp/foo

Expected results:
.trashcan/tmp/foo_xxxx and tmp/foo should match their permission bits.

Comment 1 Vijay Bellur 2016-02-17 14:24:07 UTC

REVIEW: http://review.gluster.org/13461 (features/trash: Retain file permissions during truncate) posted (#1) for review on master by Anoop C S (anoopcs)

Comment 2 Vijay Bellur 2016-03-01 07:55:54 UTC

COMMIT: http://review.gluster.org/13461 committed in master by Jeff Darcy (jdarcy) 
------
commit b1cb581424305592fac5394a578b307117b22fe7
Author: Anoop C S <anoopcs>
Date:   Wed Feb 17 15:50:05 2016 +0530

    features/trash: Retain file permissions during truncate
    
    Consider the situation where directory path for a truncated
    file does not exists under trash directory. In this scenario
    after creating the required path we failed to create the
    orginal file with proper permissions. Eventhough we try to
    fetch permissions from local->origpath, it was never filled
    with required value in truncate and ftruncate call paths.
    This change will copy original location to local->origpath
    inside both fop handling functions.
    
    Change-Id: If5930b6d368d08e58f04db999f3f9edb9250bcb9
    BUG: 1309342
    Signed-off-by: Anoop C S <anoopcs>
    Reviewed-on: http://review.gluster.org/13461
    Smoke: Gluster Build System <jenkins.com>
    CentOS-regression: Gluster Build System <jenkins.com>
    NetBSD-regression: NetBSD Build System <jenkins.org>
    Reviewed-by: jiffin tony Thottan <jthottan>
    Reviewed-by: Jeff Darcy <jdarcy>