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From:	Heinz Werner Kramski <Heinz DOT Werner DOT Kramski AT dla-marbach DOT de>
Subject:	Re: 1.7: Basic file operations fail on network shares provided by Tru64 Advanced Server
Date:	Fri, 28 Jan 2011 12:45:03 +0100
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Just for the records today's answer from HP support:

--- 8< --- 8< ---

Hi xxxx,

I have a final respons from engineering for case xxxx.

It appears that ASU is not doing anything wrong however NT4 is having a 
bug here, please read below for the explanation. But as we are claiming 
to be NT4 compatible this will be changed in the next major release.
But as you allready have your solution via Cygwin we will work this out 
internally. Therefor I am informing you that this request will be closed.

Kind regards,

xxxx.


Problem statement:
------------------
mv command from Cygwin client executed on a file on an ASU share returns 
Access Denied error

Analysis:
---------
1) In the 'NT Create AndX Request' the Cygwin client is sending an 
Access Request of 0x00010000
    Thereby requesting only for the "DELETE" access corresponding to 
0x00010000
    Hence, this is the Access that gets granted to the Cygwin client 
from the ASU server side.

2) The next request, 'Query File Basic Info' is sent with a Granted 
Access of 0x00010000
    that was obtained in the previous 'NT Create AndX Request'
    This request fails with the error, 'STATUS_ACCESS_DENIED' as the 
client does not have the
    "Desired Access" to Query for the File Basic Info.
    For this request to have completed successfully, the Granted Access 
should have been 0x00000080
    which corresponds to Read Attributes Access

Thus, the Cygwin client should have requested for a minimum Access of 
0x00010080 in the first
'NT Create AndX Request' which is required for copying/moving/renaming 
files.

Solution:
---------
The code will need to be modified to grant the Cygwin client with the 
access 0x00010180 although
the Access Requested for in the 'NT Create AndX Request' by the Cygwin 
client is 0x00010000
As this includes 0x00000080 which is the access required to Read 
Attributes the next request,
'Query File Basic Info' would complete successfully and hence the mv 
command from the Cygwin client
would execute successfully.




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