[PATCH][SMB3] allow files to be created with backslash in file name

[Jeremy Allison]

On Sat, Jan 02, 2021 at 05:21:16PM -0800, Jeremy Allison via samba-technical wrote:
>On Sat, Jan 02, 2021 at 06:19:39PM -0600, Steve French wrote:
>>I agree with the idea of being safe (in the smbclient in this case),
>>and not returning potentially dangerous file names (even if a very
>>remote danger to the tool, smbclient in this case), but I am not
>>convinced that the "user friendly" behavior is to reject the names
>>with the rather confusing message - especially as it would mean that
>>inserting a single file with an odd name into a server could make the
>>whole share unusable for smbclient (e.g. in a backup scenario).  I

FYI, as I pointed out this only happens if you *explicitly*
set a server parameter that is only expected to be set on
a share with "clean" (no non-Windows) names.

So just creating a file containing : \ etc. doesn't do
this - you have to misconfigure the server FIRST.