1 /*
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>
16 #include <linux/net.h>
17
18 #include <linux/smb_fs.h>
19 #include <linux/smb_mount.h>
20
21 #include <asm/uaccess.h>
22
23 #include "proto.h"
24
25 int
smb_ioctl(struct inode * inode,struct file * filp,unsigned int cmd,unsigned long arg)26 smb_ioctl(struct inode *inode, struct file *filp,
27 unsigned int cmd, unsigned long arg)
28 {
29 struct smb_sb_info *server = server_from_inode(inode);
30 struct smb_conn_opt opt;
31 int result = -EINVAL;
32
33 switch (cmd) {
34 uid16_t uid16;
35 uid_t uid32;
36 case SMB_IOC_GETMOUNTUID:
37 SET_UID(uid16, server->mnt->mounted_uid);
38 result = put_user(uid16, (uid16_t __user *) arg);
39 break;
40 case SMB_IOC_GETMOUNTUID32:
41 SET_UID(uid32, server->mnt->mounted_uid);
42 result = put_user(uid32, (uid_t __user *) arg);
43 break;
44
45 case SMB_IOC_NEWCONN:
46 /* arg is smb_conn_opt, or NULL if no connection was made */
47 if (!arg) {
48 result = 0;
49 smb_lock_server(server);
50 server->state = CONN_RETRIED;
51 printk(KERN_ERR "Connection attempt failed! [%d]\n",
52 server->conn_error);
53 smbiod_flush(server);
54 smb_unlock_server(server);
55 break;
56 }
57
58 result = -EFAULT;
59 if (!copy_from_user(&opt, (void __user *)arg, sizeof(opt)))
60 result = smb_newconn(server, &opt);
61 break;
62 default:
63 break;
64 }
65
66 return result;
67 }
68