[Samba] No symlink support on SMB2 and SMB3?

[Jeremy Allison]

On Mon, Jan 26, 2015 at 11:44:47AM -0800, Jeremy Allison wrote:
> On Mon, Jan 26, 2015 at 10:54:58AM +0100, Ralph Böhme wrote:
> > On Fri, Jan 23, 2015 at 01:20:05PM -0800, Jeremy Allison wrote:
> > > On Fri, Jan 23, 2015 at 10:16:34PM +0100, Ralph Böhme wrote:
> > > > On Fri, Jan 23, 2015 at 01:08:31PM -0800, Jeremy Allison wrote:
> > > > > On Fri, Jan 23, 2015 at 10:05:44PM +0100, Markus Doits wrote:
> > > > > > 
> > > > > > On 23.01.15 19:57, Miguel Medalha wrote:
> > > > > > > I am using Samba 4.1.16 with smb2/3 and symbolic links are working alright.
> > > > > > >
> > > > > > > Following the smb.conf man page, I use:
> > > > > > >
> > > > > > > unix extensions = no
> > > > > > > wide links = yes
> > > > > > >
> > > > > > >
> > > > > > Unfortunately this still does not work for me - can you really make a
> > > > > > symbolic link ("ln -s ...") when you are connected with smb2/3? Does
> > > > > > "smbstatus" really show smb2/3 connection?
> > > > > 
> > > > > No you can't - the protocol doesn't support it.
> > > > 
> > > > iirc it does, with an IO_REPARSE_TAG_SYMLINK ioctl. We just don't
> > > > implement it (yet). :)
> > > 
> > > I meant (as I'm sure you know :-) that there's no "POSIX
> > > extensions" defined for SMB2 :-).
> > > 
> > > We don't do *any* of the reparse point stuff yet (no demand
> > > as I recall it's Admin only on Windows).
> > 
> > 
> > hm. Inferring from `git grep IO_REPARSE_TAG_SYMLINK` it seems
> > smbclient does support it by virtue of the "symlink"
> > command. Unfortunately I can't test against OS X SMB2 server atm,
> > because once again I'm getting strange authenticaton errors.
> 
> Nope - the "symlink" command in smbclient just does the UNIX
> extensions call.

Ignore me, I'm wrong :-). My original smbclient code just
did the UNIX extensions call, but it looks like busy little
fingers have added the FSCTL_SET_REPARSE_POINT call since then :-).