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/sched.h>
14#include <linux/mm.h>
15#include <linux/highuid.h>
16
17#include <linux/smb_fs.h>
18#include <linux/smb_mount.h>
19
20#include <asm/uaccess.h>
21
22#include "proto.h"
23
24int
25smb_ioctl(struct inode *inode, struct file *filp,
26	  unsigned int cmd, unsigned long arg)
27{
28	struct smb_sb_info *server = server_from_inode(inode);
29	struct smb_conn_opt opt;
30	int result = -EINVAL;
31
32	switch (cmd) {
33	case SMB_IOC_GETMOUNTUID:
34		result = put_user(NEW_TO_OLD_UID(server->mnt->mounted_uid),
35				  (uid16_t *) arg);
36		break;
37	case SMB_IOC_GETMOUNTUID32:
38		result = put_user(server->mnt->mounted_uid, (uid_t *) arg);
39		break;
40
41	case SMB_IOC_NEWCONN:
42		/* arg is smb_conn_opt, or NULL if no connection was made */
43		if (!arg) {
44			result = smb_wakeup(server);
45			break;
46		}
47
48		result = -EFAULT;
49		if (!copy_from_user(&opt, (void *)arg, sizeof(opt)))
50			result = smb_newconn(server, &opt);
51		break;
52	default:
53		break;
54	}
55
56	return result;
57}
58