Re: International characters in username/password

Jeff Layton wrote:
> On Thu, 22 Apr 2010 10:58:03 +0100
> Alex Zeffertt <[email protected]> wrote:
> 
>> Hi all,
>>
>> Does anybody know how to get "mount.cifs -ocredentials=path/to/file" to work 
>> when there are international characters in the credentials file?
>>
>> I tested this with a password containing the £ (British pound) sign and I got 
>> the following error:
>>
>>    mount error 13 = Permission denied
>>    Refer to the mount.cifs(8) manual page (e.g.man mount.cifs)
>>
>> The credentials file appears to be UTF-8, with all the characters one byte wide 
>> except for the "£" sign which is encoded as "0xc2 0xa3".
>>
>> I am using samba-client-3.0.33-3.15.el5_4.1 with linux-2.6.27 and Windows 2003 
>> Server to host the share.
>>
>> Regards,
>>
>> Alex
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>>
> 
> mount.cifs and the kernel both pretty much treat the password as an
> opaque sequence of bytes and don't really care what character set
> they're in. The exception would be if you had a character with a NULL
> byte embedded in it, which would probably trick them into truncating
> the password. That doesn't sound like it's the case here.
> 
> I think it's likely that the kernel routine that generates the NTLM
> hashes in fs/cifs/smbencrypt.c is broken with respect to multibyte
> characters. It seems to expect ASCII passwords, but I don't 100%
> understand what it's doing at the moment.
> 
> All of that code is in desperate need of overhaul anyway to make
> NTLMSSP work, and really needs to be fixed so that it uses the kernel
> crypto and NLS routines instead its own routines.
> 
> Unless you're willing to tackle this project yourself, please open a bug
> at bugzilla.samba.org so that we don't lose track of this. If you do
> that, please cc me on the bug and I'll plan to grab it.
> 
> Thanks,

Thanks for your help Jeff.  I've opened up a bug report now.  The URL is

https://bugzilla.samba.org/show_bug.cgi?id=7386

Regards,

Alex
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