PROPOSAL: extend UNIX_INFO2 to mark existence of ACLs

[Jeremy Allison]

On Tue, Jan 22, 2008 at 03:23:33PM -0600, Steve French wrote:
> James Peach wrote:
> 
> >Hi all,
> >
> >Unix SMB client could often avoid a few round-trips to the server if  
> >they could tell whether a file had an ACL at the point where they  
> >query its metadata (presumably using the UNIX_INFO2 info level).
> >
> >Since the permissions field is 64bits, how about stealing the high 
> >bit  of this field to indicate whether the file might have an ACL?
> >
> >We'd probably need a mechanism for clients to figure out whether the  
> >bit was meaningful or not ....
> >
> >
> Do you mean POSIX ACL or NT ACL? 

POSIX ACL - it's the UNIX extensions afterall :-)