kern/101324: smbfs sometimes not case sensitive when it's supposed to be

[Kirk Strauser]

>Number:         101324
>Category:       kern
>Synopsis:       smbfs sometimes not case sensitive when it's supposed to be
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Aug 03 19:00:32 GMT 2006
>Closed-Date:
>Last-Modified:
>Originator:     Kirk Strauser
>Release:        6.1-STABLE
>Organization:
The Day Companies
>Environment:
FreeBSD web2.daycos.com 6.1-STABLE FreeBSD 6.1-STABLE #0: Sat Jul 15 09:47:21 CDT 2006     root at jail1.daycos.com:/usr/obj/usr/src/sys/JAIL1  i386
>Description:
On smbfs mounts, it is possible to open many "fake" directories that have the same name as a real directory except for case differences.  These fake directories differ from the real directory in that they have no contents.  I can't simply mount the directory case-insensitive for various reasons (I need access to the real filename), and this is causing significant aggravation.
>How-To-Repeat:
Try to access a directory and it's wrongly-cased variants:

$ mount -t smbfs
//WEB2 at NEWPDC/E on /mnt/newpdc/e (smbfs, noexec)

$ ls -la /mnt/newpdc/e/temp
total 9514
drwxr-xr-x  1 www  www    16384 Jul 19 09:09 .
drwxr-xr-x  1 www  www    16384 Dec 31  1969 ..
-rwxr-xr-x  1 www  www   608709 May 25  2005 82590.tif
-rwxr-xr-x  1 www  www   270336 Sep  4  2003 BIL.dll
[snipped]
-rwxr-xr-x  1 www  www    26422 Oct 26  2005 report.pdf
drwxr-xr-x  1 www  www    16384 Jan 28  2004 test

$ ls -la /mnt/newpdc/e/tEmP
total 32
drwxr-xr-x  1 www  www  16384 Jul 19 09:09 .
drwxr-xr-x  1 www  www  16384 Dec 31  1969 ..

>Fix:
If possible, use the "-c u" or "-c l" options to mount_smbfs to get coerce all pathnames to one case or the other.
>Release-Note:
>Audit-Trail:
>Unformatted: