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Bug 1359042

Summary:	/etc/exports parsing is broken leading default option cannot be overridden by the host-specific option
Product:	Red Hat Enterprise Linux 7	Reporter:	Yongcheng Yang <yoyang>
Component:	nfs-utils	Assignee:	Steve Dickson <steved>
Status:	CLOSED WONTFIX	QA Contact:	Yongcheng Yang <yoyang>
Severity:	medium	Docs Contact:	Milan Navratil <mnavrati>
Priority:	medium
Version:	7.2	CC:	steved, xzhou
Target Milestone:	rc
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Known Issue
Doc Text:	The default option specification is not overridden by the host-specific option in `/etc/exports` When "sec=sys" is used in the default option section of the `/etc/exports` file, the options list that follows is not parsed correctly. As a consequence, the default option cannot be overridden by the host-specific option.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-12-15 07:43:11 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:	1362179

Description Yongcheng Yang 2016-07-22 07:17:31 UTC

Description of problem:
The default option specification (i.e. ‘ro’) should be overridden by the host-specific option. That’s how it used to work.

Version-Release number of selected component (if applicable):
RHEL-7.2 with nfs-utils-1.3.0-0.31.el7

How reproducible:
100% easy

Steps to Reproduce:
1. See "Actual results" below.

Actual results:
[root@leira nfs]# cat /etc/exports
/export         -ro,sec=sys,sync        localhost(rw,no_root_squash)
[root@leira nfs]# exportfs -rv
exporting localhost:/export
[root@leira nfs]# mount -t nfs localhost:/export /mnt/nfs
[root@leira nfs]# mkdir /mnt/nfs/gnurr
mkdir: cannot create directory ‘/mnt/nfs/gnurr’: Read-only file system

Note that removing the "sec=sys" above causes the test to succeed.

Expected results:
localhost should have the "rw" right.

Additional info:
upstream conversation
http://www.spinics.net/lists/linux-nfs/msg58593.html

Comment 11 RHEL Program Management 2020-12-15 07:43:11 UTC

After evaluating this issue, there are no plans to address it further or fix it in an upcoming release.  Therefore, it is being closed.  If plans change such that this issue will be fixed in an upcoming release, then the bug can be reopened.