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
25int
26smb_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