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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * fs/cifs/ioctl.c
3 *
4 * vfs operations that deal with io control
5 *
Steve Frenchfb8c4b12007-07-10 01:16:18 +00006 * Copyright (C) International Business Machines Corp., 2005,2007
Linus Torvalds1da177e2005-04-16 15:20:36 -07007 * Author(s): Steve French (sfrench@us.ibm.com)
8 *
9 * This library is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU Lesser General Public License as published
11 * by the Free Software Foundation; either version 2.1 of the License, or
12 * (at your option) any later version.
13 *
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
17 * the GNU Lesser General Public License for more details.
18 *
19 * You should have received a copy of the GNU Lesser General Public License
20 * along with this library; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 */
Steve Frenchf654bac2005-04-28 22:41:04 -070023
Linus Torvalds1da177e2005-04-16 15:20:36 -070024#include <linux/fs.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070025#include "cifspdu.h"
26#include "cifsglob.h"
27#include "cifsproto.h"
28#include "cifs_debug.h"
Steve Frenchc67593a2005-04-28 22:41:04 -070029#include "cifsfs.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070030
Steve Frenchf9ddcca2008-05-15 05:51:55 +000031long cifs_ioctl(struct file *filep, unsigned int command, unsigned long arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -070032{
Al Viro496ad9a2013-01-23 17:07:38 -050033 struct inode *inode = file_inode(filep);
Linus Torvalds1da177e2005-04-16 15:20:36 -070034 int rc = -ENOTTY; /* strange error - but the precedent */
Pavel Shilovsky6d5786a2012-06-20 11:21:16 +040035 unsigned int xid;
Steve Frenchc81156d2005-04-28 22:41:07 -070036 struct cifs_sb_info *cifs_sb;
Linus Torvalds1da177e2005-04-16 15:20:36 -070037#ifdef CONFIG_CIFS_POSIX
Jeff Laytonba00ba62010-09-20 16:01:31 -070038 struct cifsFileInfo *pSMBFile = filep->private_data;
Steve French96daf2b2011-05-27 04:34:02 +000039 struct cifs_tcon *tcon;
Steve Frenchf654bac2005-04-28 22:41:04 -070040 __u64 ExtAttrBits = 0;
41 __u64 ExtAttrMask = 0;
Jeff Layton61876392010-11-08 07:28:32 -050042 __u64 caps;
Steve Frenchc81156d2005-04-28 22:41:07 -070043#endif /* CONFIG_CIFS_POSIX */
Steve Frenchf654bac2005-04-28 22:41:04 -070044
Pavel Shilovsky6d5786a2012-06-20 11:21:16 +040045 xid = get_xid();
Steve Frenchf654bac2005-04-28 22:41:04 -070046
Joe Perchesb6b38f72010-04-21 03:50:45 +000047 cFYI(1, "ioctl file %p cmd %u arg %lu", filep, command, arg);
Steve Frenchf28ac912005-04-28 22:41:07 -070048
Steve Frenchf654bac2005-04-28 22:41:04 -070049 cifs_sb = CIFS_SB(inode->i_sb);
Steve Frenchf654bac2005-04-28 22:41:04 -070050
Steve French5fdae1f2007-06-05 18:30:44 +000051 switch (command) {
Steve Frenchf28ac912005-04-28 22:41:07 -070052#ifdef CONFIG_CIFS_POSIX
David Howells36695672006-08-29 19:06:16 +010053 case FS_IOC_GETFLAGS:
Jeff Layton61876392010-11-08 07:28:32 -050054 if (pSMBFile == NULL)
55 break;
56 tcon = tlink_tcon(pSMBFile->tlink);
57 caps = le64_to_cpu(tcon->fsUnixInfo.Capability);
Steve French5fdae1f2007-06-05 18:30:44 +000058 if (CIFS_UNIX_EXTATTR_CAP & caps) {
Pavel Shilovsky4b4de762012-09-18 16:20:26 -070059 rc = CIFSGetExtAttr(xid, tcon,
60 pSMBFile->fid.netfid,
61 &ExtAttrBits, &ExtAttrMask);
Steve French5fdae1f2007-06-05 18:30:44 +000062 if (rc == 0)
Steve Frenchf654bac2005-04-28 22:41:04 -070063 rc = put_user(ExtAttrBits &
David Howells36695672006-08-29 19:06:16 +010064 FS_FL_USER_VISIBLE,
Steve Frenchf654bac2005-04-28 22:41:04 -070065 (int __user *)arg);
66 }
67 break;
68
David Howells36695672006-08-29 19:06:16 +010069 case FS_IOC_SETFLAGS:
Jeff Layton61876392010-11-08 07:28:32 -050070 if (pSMBFile == NULL)
71 break;
72 tcon = tlink_tcon(pSMBFile->tlink);
73 caps = le64_to_cpu(tcon->fsUnixInfo.Capability);
Steve French5fdae1f2007-06-05 18:30:44 +000074 if (CIFS_UNIX_EXTATTR_CAP & caps) {
75 if (get_user(ExtAttrBits, (int __user *)arg)) {
Steve Frenchf654bac2005-04-28 22:41:04 -070076 rc = -EFAULT;
Steve Frenchc81156d2005-04-28 22:41:07 -070077 break;
Steve Frenchf654bac2005-04-28 22:41:04 -070078 }
Pavel Shilovsky4b4de762012-09-18 16:20:26 -070079 /*
80 * rc = CIFSGetExtAttr(xid, tcon,
81 * pSMBFile->fid.netfid,
82 * extAttrBits,
83 * &ExtAttrMask);
84 */
Steve Frenchf654bac2005-04-28 22:41:04 -070085 }
Joe Perchesb6b38f72010-04-21 03:50:45 +000086 cFYI(1, "set flags not implemented yet");
Steve Frenchf654bac2005-04-28 22:41:04 -070087 break;
Steve Frenchf28ac912005-04-28 22:41:07 -070088#endif /* CONFIG_CIFS_POSIX */
Linus Torvalds1da177e2005-04-16 15:20:36 -070089 default:
Joe Perchesb6b38f72010-04-21 03:50:45 +000090 cFYI(1, "unsupported ioctl");
Steve Frenchf28ac912005-04-28 22:41:07 -070091 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -070092 }
Steve Frenchf654bac2005-04-28 22:41:04 -070093
Pavel Shilovsky6d5786a2012-06-20 11:21:16 +040094 free_xid(xid);
Linus Torvalds1da177e2005-04-16 15:20:36 -070095 return rc;
Steve French5fdae1f2007-06-05 18:30:44 +000096}