Samba 3.0 - Bug preventing mkfifo as non-root

Andrew Bartlett abartlet at samba.org
Sun Jan 21 22:14:41 GMT 2007


On Sun, 2007-01-21 at 22:11 +0000, Anders Karlsson wrote:
> On Sun, 2007-01-21 at 13:34 -0800, Jeremy Allison wrote:
> > On Sun, Jan 21, 2007 at 09:20:29PM +0000, Anders Karlsson wrote:
> > > > 4253 
> > > > 4254                                 if (tran_call ==
> > > > TRANSACT2_SETFILEINFO)
> > > > 4255
> > > > return(ERROR_DOS(ERRDOS,ERRnoaccess));
> > > > 4256 
> > > 
> > > This is where it drops out.
> > 
> > So the version of the client you're using is sending
> > a trans2 call with level TRANSACT2_SETFILEINFO (0x8)- which
> > requires a 16-bit fnum, not a unicode path name.
> > 
> > The level required is TRANSACT2_SETPATHINFO (0x6)
> > as this sends a pathname.
> > 
> > Obviously if we have no pathname we can't do a
> > mknod call which requires a pathname argument.
> 
> True. It fails on the same spot if I do 'cd /mnt/test ; mkfifo foo' in
> case that helps anything.
> 
> > This is a client bug of some kind - one I'm not
> > seeing in the latest CIFSFS client code.
> 
> So somewhere between 3.0.23d and HEAD there is a fix for this? If the
> fix happened in the client between those points, it narrows down
> considerably the code I'll need to look through to understand the fix.

No, what Jeremy is saying is that you will need to install a new kernel.

Andrew Bartlett

-- 
Andrew Bartlett                                http://samba.org/~abartlet/
Authentication Developer, Samba Team           http://samba.org
Samba Developer, Red Hat Inc.                  http://redhat.com
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