FreeBSD/Linux Kernel Cross Reference
sys/fs/smbfs/ioctl.c
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
24 int
25 smb_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 }
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