I just tried an experiment with "mknod -p". Named pipes are not visible across zones using that method. If you create a named pipe in one zone, it is not visible in other zones. This includes the global zone.

That experiment was done on Solaris Nevada build 50.

Steffen Weiberle wrote:
Thanks, Mike. I don't have any code to try this out with, and even if I did, not miss some cases.

To the general audience: What is the expected result? What privilege(s) prevents a named pipe from working?

Thanks
Steffen

Ellis, Mike wrote On 12/11/06 08:25,:

I tried this about a year ago, thinking I was being clever...

Didn't work :-( Let me know if you have a different experience.

 -- MikeE



-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Steffen
Weiberle
Sent: Monday, December 11, 2006 7:27 AM
To: zones-discuss@opensolaris.org
Subject: [zones-discuss] ?: named pipes between zones using shared
filesystem


I have no reason to believe the following will not work, but I would
like to confirm....

If a file system is shared between two zones (via lofs), can named pipes
be used to communicated between the two zones?

If the filesystem is mounted read/write in one and read-only in the
other, will this communication be limited to sending informaton from the first to the second?

Based on what I know of the security model, nothing in zones should
prevent this.

Thanks
Steffen
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