summaryrefslogtreecommitdiffstats
path: root/fs/cifs/ioctl.c
blob: 6c9f1214cf0bd5d4b4e5f1ccd2751637247edc85 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
/*
 *   fs/cifs/ioctl.c
 *
 *   vfs operations that deal with io control
 *
 *   Copyright (C) International Business Machines  Corp., 2005,2007
 *   Author(s): Steve French (sfrench@us.ibm.com)
 *
 *   This library is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU Lesser General Public License as published
 *   by the Free Software Foundation; either version 2.1 of the License, or
 *   (at your option) any later version.
 *
 *   This library 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 Lesser General Public License for more details.
 *
 *   You should have received a copy of the GNU Lesser General Public License
 *   along with this library; if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */

#include <linux/fs.h>
#include "cifspdu.h"
#include "cifsglob.h"
#include "cifsproto.h"
#include "cifs_debug.h"
#include "cifsfs.h"

long cifs_ioctl(struct file *filep, unsigned int command, unsigned long arg)
{
	struct inode *inode = file_inode(filep);
	int rc = -ENOTTY; /* strange error - but the precedent */
	unsigned int xid;
	struct cifs_sb_info *cifs_sb;
#ifdef CONFIG_CIFS_POSIX
	struct cifsFileInfo *pSMBFile = filep->private_data;
	struct cifs_tcon *tcon;
	__u64	ExtAttrBits = 0;
	__u64	ExtAttrMask = 0;
	__u64   caps;
#endif /* CONFIG_CIFS_POSIX */

	xid = get_xid();

	cFYI(1, "ioctl file %p  cmd %u  arg %lu", filep, command, arg);

	cifs_sb = CIFS_SB(inode->i_sb);

	switch (command) {
#ifdef CONFIG_CIFS_POSIX
		case FS_IOC_GETFLAGS:
			if (pSMBFile == NULL)
				break;
			tcon = tlink_tcon(pSMBFile->tlink);
			caps = le64_to_cpu(tcon->fsUnixInfo.Capability);
			if (CIFS_UNIX_EXTATTR_CAP & caps) {
				rc = CIFSGetExtAttr(xid, tcon,
						    pSMBFile->fid.netfid,
						    &ExtAttrBits, &ExtAttrMask);
				if (rc == 0)
					rc = put_user(ExtAttrBits &
						FS_FL_USER_VISIBLE,
						(int __user *)arg);
			}
			break;

		case FS_IOC_SETFLAGS:
			if (pSMBFile == NULL)
				break;
			tcon = tlink_tcon(pSMBFile->tlink);
			caps = le64_to_cpu(tcon->fsUnixInfo.Capability);
			if (CIFS_UNIX_EXTATTR_CAP & caps) {
				if (get_user(ExtAttrBits, (int __user *)arg)) {
					rc = -EFAULT;
					break;
				}
				/*
				 * rc = CIFSGetExtAttr(xid, tcon,
				 *		       pSMBFile->fid.netfid,
				 *		       extAttrBits,
				 *		       &ExtAttrMask);
				 */
			}
			cFYI(1, "set flags not implemented yet");
			break;
#endif /* CONFIG_CIFS_POSIX */
		default:
			cFYI(1, "unsupported ioctl");
			break;
	}

	free_xid(xid);
	return rc;
}