[Bug 13712] Unable to access files below folder name with trailing dot or space

[samba-bugs@samba.org]

https://bugzilla.samba.org/show_bug.cgi?id=13712

--- Comment #4 from Steve French <sfrench@samba.org> ---
Can you tell me which version you still see it failing in?  It works for me in
5.10. See below:

root@smfrench-ThinkPad-P52:/mnt2# mkdir subdir
root@smfrench-ThinkPad-P52:/mnt2# cd subdir
root@smfrench-ThinkPad-P52:/mnt2/subdir# mkdir dir-trailing-dot.
root@smfrench-ThinkPad-P52:/mnt2/subdir# ls
dir-trailing-dot.
root@smfrench-ThinkPad-P52:/mnt2/subdir# echo foo > dir-trailing-dot./foo
root@smfrench-ThinkPad-P52:/mnt2/subdir# mkdir x
root@smfrench-ThinkPad-P52:/mnt2/subdir# echo foo > x/foo
root@smfrench-ThinkPad-P52:/mnt2/subdir# mv x dir2-trailing-dot.
root@smfrench-ThinkPad-P52:/mnt2/subdir# ls dir2-trailing-dot.
foo
root@smfrench-ThinkPad-P52:/mnt2/subdir# cat dir2-trailing-dot./foo
foo
root@smfrench-ThinkPad-P52:/mnt2/subdir# mount | grep cifs
//localhost/scratch on /mnt2 type cifs
(rw,relatime,vers=3.1.1,cache=strict,username=smfrench,uid=0,noforceuid,gid=0,noforcegid,addr=127.0.0.1,file_mode=0755,dir_mode=0755,soft,nounix,serverino,mapposix,mfsymlinks,rsize=4194304,wsize=4194304,bsize=1048576,echo_interval=60,actimeo=1)

This was fixed multiple years ago in patch:
commit 45e8a2583d97ca758a55c608f78c4cef562644d1
Author: Steve French <smfrench@gmail.com>
Date:   Wed Jun 22 21:07:32 2016 -0500

    File names with trailing period or space need special case conversion

    POSIX allows files with trailing spaces or a trailing period but
    SMB3 does not, so convert these using the normal Services For Mac
    mapping as we do for other reserved characters such as
            : < > | ? *
    This is similar to what Macs do for the same problem over SMB3.

    CC: Stable <stable@vger.kernel.org>
    Signed-off-by: Steve French <steve.french@primarydata.com>
    Acked-by: Pavel Shilovsky <pshilovsky@samba.org>

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