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/smp_lock.h>
17#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
26long
27smb_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
28{
29	struct smb_sb_info *server = server_from_inode(filp->f_path.dentry->d_inode);
30	struct smb_conn_opt opt;
31	int result = -EINVAL;
32
33	lock_kernel();
34	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	}
66	unlock_kernel();
67
68	return result;
69}
70