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authorMiles Bader <miles@gnu.org>1997-02-06 07:43:55 +0000
committerMiles Bader <miles@gnu.org>1997-02-06 07:43:55 +0000
commit9bf0d068271bbf92b3dbf464fc225c3ab2c780e7 (patch)
tree48f0fc2765468971499be2cccb607926a60d3094 /libdiskfs
parentd7ef8c8783570c330752c128f8962cca17459e1c (diff)
(diskfs_S_file_getfh):
Implement (code from ufs).
Diffstat (limited to 'libdiskfs')
-rw-r--r--libdiskfs/file-getfh.c68
1 files changed, 50 insertions, 18 deletions
diff --git a/libdiskfs/file-getfh.c b/libdiskfs/file-getfh.c
index bc788a20..1b23b80c 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 Free Software Foundation
- 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, unsigned *fh_len)
{
- return EOPNOTSUPP;
+ struct node *node;
+ struct diskfs_fhandle *f;
+
+ if (! cred)
+ return EOPNOTSUPP;
+
+ if (! idvec_contains (cred->user->uids, 0))
+ return EPERM;
+
+ node = cred->po->np;
+
+ mutex_lock (&node->lock);
+
+ if (*fh_len < sizeof (struct diskfs_fhandle))
+ vm_allocate (mach_task_self (), (vm_address_t *) fh,
+ sizeof (struct diskfs_fhandle), 1);
+ *fh_len = sizeof (struct diskfs_fhandle);
+
+ f = (struct diskfs_fhandle *)*fh;
+
+ f->cache_id = node->cache_id;
+ f->gen = node->dn_stat.st_gen;
+
+ f->filler1 = 0;
+ bzero (f->filler2, sizeof f->filler2);
+
+ mutex_unlock (&node->lock);
+
+ return 0;
}