OpenVZ Forum


Home » Mailing lists » Devel » [RFC PATCH 0/2] net: connect to UNIX sockets from specified root
Re: [RFC PATCH 0/2] net: connect to UNIX sockets from specified root [message #47448 is a reply to message #47447] Fri, 10 August 2012 19:24 Go to previous messageGo to previous message
Alan Cox is currently offline  Alan Cox
Messages: 48
Registered: May 2006
Member
On Fri, 10 Aug 2012 15:11:50 -0400
"J. Bruce Fields" <bfields@fieldses.org> wrote:

> On Fri, Aug 10, 2012 at 07:26:28PM +0100, Alan Cox wrote:
> > > On that whole subject...
> > >
> > > Do we need a Unix domain socket equivalent to openat()?
> >
> > I don't think so. The name is just a file system indexing trick, it's not
> > really the socket proper. It's little more than "ascii string with
> > permissions attached"
>
> That's overstating the case. As I understand it the address is resolved
> by a pathname lookup like any other--it can follow symlinks, is relative
> to the current working directory and filesystem namespace, etc.

Explicitly for Linux yes - this is not generally true of the AF_UNIX
socket domain and even the permissions aspect isn't guaranteed to be
supported on some BSD environments !

The name is however just a proxy for the socket itself. You don't even
get a device node in the usual sense or the same inode in the file system
space.

Alan

Report message to a moderator

[Message index]
 
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Previous Topic: [PATCH v4 7/9] IPC: message queue receive cleanup
Next Topic: Running windows over OpenVZ
Goto Forum:
  

[ Syndicate this forum (XML) ] [ RSS ] [ PDF ]

Current Time: Wed Jan 14 07:31:59 GMT 2026

Total time taken to generate the page: 0.23859 seconds
Powered by FUDforum Powered by Virtuozzo Containers