Again: Extended Attributes and Hidden, System, Archive attrs?

[Thomas Mieslinger]

Hi Jeremy,

has this feature been implemented? I would really like to use it, but
couldn't find it in 3.0.2.

Thanks in advance

Thomas

On Fri, Mar 21, 2003 at 09:44:26AM +0100, Olaf Fr±czyk wrote:
> Hi,
>
> I remember some time ago several people were discussing about putting
> the Hidden, System, Archive, Read-Only bits in EAs.
>
> Has it been done in 3.0?
> Will it be in 2.2.x serie?

Not done for 2.2., I'm thinking about it for 3.0.

Jeremy.

-- CUT --
I did this in a May 17th cut of in 2.2.x, which was right around the 2.2.4
release. I didn't submit a patch, because I didn't think there were that
many people using a file system that has extended attributes.

NOTE: Need to define lp_store_dos_mode config option and pick a name for
DOSMODE_ATTR_NAME for this code to work.

This is how I did it in 2.2:

sambma/source/smbd/dosmode.c:

/***************************************************************************

*
  change a unix mode to a dos mode
****************************************************************************

/
int dos_mode(connection_struct *conn,char *path,SMB_STRUCT_STAT *sbuf)
{
  int result = 0;

  DEBUG(8,("dos_mode: %s\n", path));

+            /* Load dos mode from EAs if enabled */
+            if (lp_store_dos_mode()) {
+
+                        int size = sizeof(result);
+                        if (conn->vfs_ops.get_ea(conn, path,
DOSMODE_ATTR_NAME,
(char*)&result, &size) == -1) {
+
+                                    if (S_ISDIR(sbuf->st_mode)) {
+                                                result =
FILE_ATTRIBUTE_DIRECTORY;
+                                    }
+                                    else {
+                                                result =
FILE_ATTRIBUTE_ARCHIVE;
+                                    }
+                        }
+            }
+
+            /* Otherwise perform the usual mapping */
+            else {

...

/*******************************************************************
chmod a file - but preserve some bits
********************************************************************/
int file_chmod(connection_struct *conn,char *fname,int
dosmode,SMB_STRUCT_STAT *st)
{
             SMB_STRUCT_STAT st1;
             int mask=0;
             mode_t tmp;
             mode_t unixmode;
             int ret = -1;

             if (!st) {
                         st = &st1;
                         if (vfs_stat(conn,fname,st))
                                     return(-1);
             }

             if (S_ISDIR(st->st_mode))
                         dosmode |= aDIR;
             else
                         dosmode &= ~aDIR;

+            /* Store dos mode in EAs if enabled */
+            if (lp_store_dos_mode()) {
+                        return conn->vfs_ops.set_ea(conn, fname,
DOSMODE_ATTR_NAME,
(char*)&dosmode, sizeof(dosmode));
+            }

             if (dos_mode(conn,fname,st) == dosmode)
                         return(0);

             unixmode = unix_mode(conn,dosmode,fname);

             /* preserve the s bits */
             mask |= (S_ISUID | S_ISGID);

--
General Logistics Systems
Thomas Mieslinger
German-Parcel-Str. 1-7  fon: +49 6677 17 463
36286 Neuenstein      fax: +49 6677 17 111
Germany    eMail: thomas.mieslinger at gls-germany.com