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Bug 1075162 - Automounter lens cannot parse hostnames containing hyphens
Summary: Automounter lens cannot parse hostnames containing hyphens
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: augeas
Version: 7.0
Hardware: All
OS: Linux
medium
medium
Target Milestone: rc
: ---
Assignee: Dominic Cleal
QA Contact: Virtualization Bugs
URL:
Whiteboard:
Depends On: 1075112
Blocks: 1113520
TreeView+ depends on / blocked
 
Reported: 2014-03-11 15:32 UTC by Dominic Cleal
Modified: 2018-12-09 17:37 UTC (History)
6 users (show)

Fixed In Version: augeas-1.1.0-13.el7
Doc Type: Bug Fix
Doc Text:
Clone Of: 1075112
Environment:
Last Closed: 2015-03-05 09:25:05 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2015:0399 0 normal SHIPPED_LIVE augeas bug fix and enhancement update 2015-03-05 14:17:57 UTC

Description Dominic Cleal 2014-03-11 15:32:39 UTC 
+++ This bug was initially created as a clone of Bug #1075112 +++

Description of problem:

There is a bug in the automount lens for augeas. It fails to parse a vailid auto.export file.

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


How reproducible:
Easily reproducible.


Steps to Reproduce:
1. Create a /etc/auto.export config file with the following contents

nco-lw-mezeogu -v,rw,hard nco-lw-mezeogu:/usr1
* -rw,hard,intr,noatime,v &:/export/&

2. Run augeas against the file.

Actual results:

augtool> print /augeas/files/etc/auto.export/error/
/augeas/files/etc/auto.export/error = "parse_failed"
/augeas/files/etc/auto.export/error/pos = "0"
/augeas/files/etc/auto.export/error/line = "1"
/augeas/files/etc/auto.export/error/char = "0"
/augeas/files/etc/auto.export/error/lens = "/usr/share/augeas/lenses/dist/automounter.aug:119.10-.49:"
/augeas/files/etc/auto.export/error/message = "Iterated lens matched less than it should"


Expected results:
augtool> print /augeas/files/etc/auto.export/error/
augtool> print /files/etc/auto.export
/files/etc/auto.export
/files/etc/auto.export/1 = "nco-lw-mezeogu"
/files/etc/auto.export/1/opt[1] = "v"
/files/etc/auto.export/1/opt[2] = "rw"
/files/etc/auto.export/1/opt[3] = "hard"
/files/etc/auto.export/1/location
/files/etc/auto.export/1/location/1
/files/etc/auto.export/1/location/1/host = "nco-lw-mezeogu"
/files/etc/auto.export/1/location/1/path = "/usr1"
/files/etc/auto.export/2 = "*"
/files/etc/auto.export/2/opt[1] = "rw"
/files/etc/auto.export/2/opt[2] = "hard"
/files/etc/auto.export/2/opt[3] = "intr"
/files/etc/auto.export/2/opt[4] = "noatime"
/files/etc/auto.export/2/opt[5] = "v"
/files/etc/auto.export/2/location
/files/etc/auto.export/2/location/1
/files/etc/auto.export/2/location/1/host = "&"
/files/etc/auto.export/2/location/1/path = "/export/&"


Additional info:

Customer provided the following patch that fixes the issue:

The offending line is in /usr/share/augeas/lenses/dist/automounter.aug, at line 43. The package ships:

let hostname = /[^-:#\(\), \n\t]+/ 

When the fix is applied, it becomes:

let hostname = /[^:#\(\), \n\t]+/

--- Additional comment from Dominic Cleal on 2014-03-11 15:16:25 GMT ---

Please note that the patch suggested here causes ambiguities and may affect the correct operation of Augeas.  The working patch is upstream as e6643d8 already.
Comment 1 bfan 2014-03-12 02:36:51 UTC 
Can reproduce with augeas-1.1.0-12.el7

# cat /etc/auto.export 
nco-lw-mezeogu -v,rw,hard nco-lw-mezeogu:/usr1
* -rw,hard,intr,noatime,v &:/export/&

# augtool 
augtool> print /augeas/files/etc/auto.export/error/
/augeas/files/etc/auto.export/error = "parse_failed"
/augeas/files/etc/auto.export/error/pos = "0"
/augeas/files/etc/auto.export/error/line = "1"
/augeas/files/etc/auto.export/error/char = "0"
/augeas/files/etc/auto.export/error/lens = "/usr/share/augeas/lenses/dist/automounter.aug:119.10-.49:"
/augeas/files/etc/auto.export/error/message = "Iterated lens matched less than it should"
Comment 3 Lingfei Kong 2014-09-16 06:43:47 UTC 
Verify with augeas-1.1.0-13.el7

Steps to verify:
1. Create file  /etc/auto.export (remember to backup your old one)
#cat /etc/auto.export
nco-lw-mezeogu -v,rw,hard nco-lw-mezeogu:/usr1
* -rw,hard,intr,noatime,v &:/export/&

2. #augtool print /files/etc/auto.export
/files/etc/auto.export
/files/etc/auto.export/1 = "nco-lw-mezeogu"
/files/etc/auto.export/1/opt[1] = "v"
/files/etc/auto.export/1/opt[2] = "rw"
/files/etc/auto.export/1/opt[3] = "hard"
/files/etc/auto.export/1/location
/files/etc/auto.export/1/location/1
/files/etc/auto.export/1/location/1/host = "nco-lw-mezeogu"
/files/etc/auto.export/1/location/1/path = "/usr1"
/files/etc/auto.export/2 = "*"
/files/etc/auto.export/2/opt[1] = "rw"
/files/etc/auto.export/2/opt[2] = "hard"
/files/etc/auto.export/2/opt[3] = "intr"
/files/etc/auto.export/2/opt[4] = "noatime"
/files/etc/auto.export/2/opt[5] = "v"
/files/etc/auto.export/2/location
/files/etc/auto.export/2/location/1
/files/etc/auto.export/2/location/1/host = "&"
/files/etc/auto.export/2/location/1/path = "/export/&"


Augeas can parse file /etc/auto.export successfully, so bug is fixed
Comment 5 errata-xmlrpc 2015-03-05 09:25:05 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.

https://rhn.redhat.com/errata/RHBA-2015-0399.html
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