Greetings,
I want to make some CIFS shared drives accesible through a firewall. For
that sake, I have a CIFS shared drive on a Linux box (box0, kernel
2.6.27.57) which is accesible from outside the firewall. On the share on
that box I mount all the shared drives from within the firewall so that
they can be accessed from client-external.
client-external
172.16.1.2
|
|
172.16.1.1/24
box0 (router, firewall)
192.168.1.1/24
|
+------+-------+
| |
win98 winxp
192.168.1.2 192.168.1.3
box0 exports a CIFS shared drive, say \\172.16.1.1\testshare, which
refers to local directory, /mnt/share. On /mnt/share I mount two further
shared drives, say win98 and winxp. Thus, the contents from win98 and
winxp become indirectly visible to the external network
(client-external) via 172.16.1.1.
This works well if I mount \\172.16.1.1\testshare using a Linux-based
client-external. Everything works as expected and I can browse the
contents of both, winxp and win98. However, when I mount
\\172.16.1.1\testshare on a Windows machine, I am unable to browse the
contents of the win98 directory. While the winxp directory appears
correctly as a folder in the Windows Explorer, the win98 directory
appears as a zero byte file (even though it is mounted correctly on box0.)
I tested the same setup using my local workstation (with Debian squeeze,
kernel 2.6.32-5) and came to the same observations. The only difference
I could find between the mounted winxp share and the win98 share on box0
is that the winxp mount point exhibits an inode link count of 1 after
being mounted while the win98 mount point has an inode link count of 0:
root:/mnt/share# ls -l
total 8
(...)
drwxr-xr-x 0 root root 0 Feb 23 01:39 win98
drwxr-xr-x 1 root root 0 Mar 13 13:32 winxp
I have tried pretty much every mount option and the behavior is always
the same.
My questions are:
1. Why do Windows 98 mounted shares show this behavior?
2. Is there any way to correct this so as to be able to browse these
shares indirectly (as described) from a Windows PC?
Any information would be highly appreciated!
Kind regards,
--
Federico Sauter / Firmware developer
Innominate Security Technologies AG / protecting industrial networks
tel: +49.30.921028-210 / fax: +49.30.921028-020
Rudower Chaussee 13 / D-12489 Berlin / http://www.innominate.com/
Register Court: AG Charlottenburg, HR B 81603
Management Board: Dirk Seewald
Chairman of the Supervisory Board: Christoph Leifer
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