blob: 07215312ad397d8dbbf8bceadd4477676a99e929 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * ioctl.c
3 *
4 * Copyright (C) 1995, 1996 by Volker Lendecke
5 * Copyright (C) 1997 by Volker Lendecke
6 *
7 * Please add a note about your changes to smbfs in the ChangeLog file.
8 */
9
10#include <linux/errno.h>
11#include <linux/fs.h>
12#include <linux/ioctl.h>
13#include <linux/time.h>
14#include <linux/mm.h>
15#include <linux/highuid.h>
Arnd Bergmannce8273a2010-04-27 16:24:25 +020016#include <linux/smp_lock.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070017#include <linux/net.h>
18
19#include <linux/smb_fs.h>
20#include <linux/smb_mount.h>
21
22#include <asm/uaccess.h>
23
24#include "proto.h"
25
Arnd Bergmannce8273a2010-04-27 16:24:25 +020026long
27smb_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -070028{
Arnd Bergmannce8273a2010-04-27 16:24:25 +020029 struct smb_sb_info *server = server_from_inode(filp->f_path.dentry->d_inode);
Linus Torvalds1da177e2005-04-16 15:20:36 -070030 struct smb_conn_opt opt;
31 int result = -EINVAL;
32
Arnd Bergmannce8273a2010-04-27 16:24:25 +020033 lock_kernel();
Linus Torvalds1da177e2005-04-16 15:20:36 -070034 switch (cmd) {
35 uid16_t uid16;
36 uid_t uid32;
37 case SMB_IOC_GETMOUNTUID:
38 SET_UID(uid16, server->mnt->mounted_uid);
39 result = put_user(uid16, (uid16_t __user *) arg);
40 break;
41 case SMB_IOC_GETMOUNTUID32:
42 SET_UID(uid32, server->mnt->mounted_uid);
43 result = put_user(uid32, (uid_t __user *) arg);
44 break;
45
46 case SMB_IOC_NEWCONN:
47 /* arg is smb_conn_opt, or NULL if no connection was made */
48 if (!arg) {
49 result = 0;
50 smb_lock_server(server);
51 server->state = CONN_RETRIED;
52 printk(KERN_ERR "Connection attempt failed! [%d]\n",
53 server->conn_error);
54 smbiod_flush(server);
55 smb_unlock_server(server);
56 break;
57 }
58
59 result = -EFAULT;
60 if (!copy_from_user(&opt, (void __user *)arg, sizeof(opt)))
61 result = smb_newconn(server, &opt);
62 break;
63 default:
64 break;
65 }
Arnd Bergmannce8273a2010-04-27 16:24:25 +020066 unlock_kernel();
Linus Torvalds1da177e2005-04-16 15:20:36 -070067
68 return result;
69}