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Created attachment 1319207 [details]
patch to add dot character to lexer pattern

Description of problem:

The lexer pattern for the options string does not accept the dot ('.') character, so setting an nfs v4 minor version with 'vers=4.0' fails as a syntax error.

(currently, only nfs4 version number is known to be affected; there may be others)


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

autofs - all versions


How reproducible:

see below


Steps to Reproduce:

add a mount option in /etc/auto.master that includes a '.', for example:
/net    -hosts  vers=4.1
or
/mnt_indirect   /etc/auto.indirect   vers=4.1


Actual results:

	# automount -m
	.
	syntax error while parsing map.
	syntax error in map near [ bogus option ]

	autofs dump map information
	===========================

	global options: none configured
	...


Expected results:

mount option is valid syntax

	# automount -m

	autofs dump map information
	===========================

	global options: none configured

	Mount point: /net

	source(s):

	  type: hosts
	  map: vers=4.1
	...


Additional info:

In some cases, vers=4,minorversion=1 can be used as a workaround

Created attachment 1340576 [details]
Patch - handle additional nfs versions in mount_nfs.c

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://access.redhat.com/errata/RHBA-2018:0977