1 files changed, 50 insertions, 18 deletions
diff --git a/libdiskfs/file-getfh.c b/libdiskfs/file-getfh.c
index bc788a20..2dcf68e5 100644
--- a/libdiskfs/file-getfh.c
+++ b/libdiskfs/file-getfh.c
@@ -1,28 +1,60 @@
-/* libdiskfs implementation of fs.defs: file_getfh
-   Copyright (C) 1992, 1993, 1994, 1995 Free Software Foundation
+/* Return a file handle (for nfs server support)
 
-   This program is free software; you can redistribute it and/or
-   modify it under the terms of the GNU General Public License as
-   published by the Free Software Foundation; either version 2, or (at
-   your option) any later version.
+   Copyright (C) 1997,99,2002 Free Software Foundation, Inc.
 
-   This program is distributed in the hope that it will be useful, but
-   WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   General Public License for more details.
+   This file is part of the GNU Hurd.
+
+   The GNU Hurd is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   The GNU Hurd is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+   along with the GNU Hurd; see the file COPYING.  If not, write to
+   the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
+
+#include <string.h>
 
 #include "priv.h"
 #include "fs_S.h"
+#include "fhandle.h"
 
-/* Implement file_getfh as described in <hurd/fs.defs>. */
-kern_return_t
-diskfs_S_file_getfh (struct protid *cred __attribute__ ((unused)),
-		     char **data __attribute__ ((unused)),
-		     u_int *datalen __attribute__ ((unused)))
+/* Return an NFS file handle for CRED in FH & FN_LEN.  */
+error_t
+diskfs_S_file_getfh (struct protid *cred, char **fh, size_t *fh_len)
 {
-  return EOPNOTSUPP;
+  struct node *node;
+  union diskfs_fhandle *f;
+
+  if (! cred)
+    return EOPNOTSUPP;
+
+  if (! idvec_contains (cred->user->uids, 0))
+    return EPERM;
+
+  assert (sizeof *f == sizeof f->bytes);
+
+  node = cred->po->np;
+
+  mutex_lock (&node->lock);
+
+  if (*fh_len < sizeof (union diskfs_fhandle))
+    *fh = mmap (0, sizeof (union diskfs_fhandle), PROT_READ|PROT_WRITE,
+		MAP_ANON, 0, 0);
+  *fh_len = sizeof *f;
+
+  f = (union diskfs_fhandle *) *fh;
+
+  bzero (f, sizeof *f);
+  f->data.cache_id = node->cache_id;
+  f->data.gen = node->dn_stat.st_gen;
+
+  mutex_unlock (&node->lock);
+
+  return 0;
 }