[OpenAFS] OpenAFS client 1.7.201 and later triggers printing
of smiley faces on all printers shared via Samba
Peter Dissing
ped@es.aau.dk
Tue, 21 Feb 2012 14:04:05 +0100
--------------000200080706070403010101
Content-Type: text/plain; charset="UTF-8"; format=flowed
Content-Transfer-Encoding: 7bit
On 2012-02-20 15:53, Jeffrey Altman wrote:
> The log indicates a bug in Samba or the printer.
>
> The explorer shell extension is asking to open an existing file. It
> is explicitly asking that the file not be created if it doesn't exist
> and yet Samba indicates that the file does exist and has been opened.
>
> Explorer.EXE 2544 CreateFile
> \\130.225.51.90\pr-c1-103-bw\_._AFS_IOCTL_._ SUCCESS
> Desired Access: Read Data/List Directory, Write Data/Add File, Read
> Attributes, Synchronize,
> Disposition: Open,
> Options: Write Through, Synchronous IO Non-Alert, Non-Directory File,
> Attributes: n/a,
> ShareMode: Read,
> AllocationSize: n/a,
> OpenResult: Opened
>
> The AFS Pioctl request is then written to the open file and when it
> attempts to read the result it is told that reading is an
> INVALID_DEVICE_REQUEST.
>
> A printer that permits writing files to the printer for the purpose of
> printing, faxing, etc. must only open a non-existing file if the
> CreateFile disposition is Create, Create_Always or Open_Always.
>
> I cannot tell for sure from this trace but I'm going to guess that the
> reason this behavior started with 1.7.2 is the addition of Icon
> Overlays for AFS mount points and symlinks. The explorer shell
> extension issues an AFS pioctl to test whether the device is in AFS or
> not.
>
> Jeffrey Altman
>
Hi
Since its all our printers that is affected (multiple different types
and manufactures) we will look into the samba server.
If we find anything usefull, we will report back.
/Peter
--------------000200080706070403010101
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: 8bit
<html>
<head>
<meta content="text/html; charset=UTF-8" http-equiv="Content-Type">
</head>
<body bgcolor="#FFFFFF" text="#000000">
On 2012-02-20 15:53, Jeffrey Altman wrote:
<blockquote cite="mid:4F425E80.8010307@your-file-system.com"
type="cite">
<meta content="text/html; charset=UTF-8" http-equiv="Content-Type">
The log indicates a bug in Samba or the printer.<br>
<br>
The explorer shell extension is asking to open an existing file.
It is explicitly asking that the file not be created if it doesn't
exist and yet Samba indicates that the file does exist and has
been opened.<br>
<br>
Explorer.EXE 2544 CreateFile
\\130.225.51.90\pr-c1-103-bw\_._AFS_IOCTL_._ SUCCESS <br>
Desired Access: Read Data/List Directory, Write Data/Add File,
Read Attributes, Synchronize, <br>
Disposition: Open, <br>
Options: Write Through, Synchronous IO Non-Alert, Non-Directory
File, <br>
Attributes: n/a, <br>
ShareMode: Read, <br>
AllocationSize: n/a, <br>
OpenResult: Opened<br>
<br>
The AFS Pioctl request is then written to the open file and when
it attempts to read the result it is told that reading is an
INVALID_DEVICE_REQUEST.<br>
<br>
A printer that permits writing files to the printer for the
purpose of printing, faxing, etc. must only open a non-existing
file if the CreateFile disposition is Create, Create_Always or
Open_Always.<br>
<br>
I cannot tell for sure from this trace but I'm going to guess that
the reason this behavior started with 1.7.2 is the addition of
Icon Overlays for AFS mount points and symlinks. The explorer
shell extension issues an AFS pioctl to test whether the device is
in AFS or not.<br>
<br>
Jeffrey Altman<br>
<br>
</blockquote>
<br>
Hi <br>
<br>
Since its all our printers that is affected (multiple different
types and manufactures) we will look into the samba server. <br>
<br>
If we find anything usefull, we will report back.<br>
<br>
/Peter <br>
</body>
</html>
--------------000200080706070403010101--