2 * Copyright (c) 2004, 2005 The DragonFly Project. All rights reserved.
4 * This code is derived from software contributed to The DragonFly Project
5 * by Simon 'corecode' Schubert <corecode@fs.ei.tum.de>.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the
17 * 3. Neither the name of The DragonFly Project nor the names of its
18 * contributors may be used to endorse or promote products derived
19 * from this software without specific, prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
25 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
31 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * $DragonFly: src/sys/sys/mapped_ioctl.h,v 1.2 2005/03/01 00:43:02 corecode Exp $
36 #ifndef _SYS_MAPPED_IOCTL_H_
37 #define _SYS_MAPPED_IOCTL_H_
39 #include <sys/queue.h>
43 struct ioctl_map_entry
;
45 typedef int (ioctl_wrap_func
)(struct file
*, u_long
, u_long
, caddr_t
,
47 typedef u_long (ioctl_map_func
)(u_long
, u_long
, u_long
, u_long
, u_long
, u_long
);
49 struct ioctl_map_range
{
50 u_long start
; /* Start of source range; inclusive */
51 u_long end
; /* End of source range; inclusive */
52 u_long maptocmd
; /* Start of destination range */
53 u_long maptoend
; /* End of destination range */
54 ioctl_wrap_func
*wrapfunc
; /* Ioctl handler to use */
55 ioctl_map_func
*mapfunc
; /* Handler to map source to dest */
58 #define MAPPED_IOCTL_MAPRANGE(c,e,t,r,f,m) { (c), (e), (t), (r), (f), (m) }
59 #define MAPPED_IOCTL_MAPF(c,t,f) MAPPED_IOCTL_MAPRANGE((c), (c), (t), (t), (f), NULL)
60 #define MAPPED_IOCTL_MAP(c,t) MAPPED_IOCTL_MAPF((c), (t), NULL)
61 #define MAPPED_IOCTL_IO(c,f) MAPPED_IOCTL_MAPF((c), _IO(0, 0), (f))
62 #define MAPPED_IOCTL_IOR(c,f,t) MAPPED_IOCTL_MAPF((c), _IOR(0, 0, t), (f))
63 #define MAPPED_IOCTL_IOW(c,f,t) MAPPED_IOCTL_MAPF((c), _IOW(0, 0, t), (f))
64 #define MAPPED_IOCTL_IOWR(c,f,t) MAPPED_IOCTL_MAPF((c), _IOWR(0, 0, t), (f))
69 LIST_HEAD(, ioctl_map_entry
) mapping
;
72 struct ioctl_map_handler
{
73 struct ioctl_map
*map
;
75 struct ioctl_map_range
*cmd_ranges
;
78 int mapped_ioctl(int fd
, u_long com
, caddr_t uspc_data
, struct ioctl_map
*map
);
79 int mapped_ioctl_register_handler(struct ioctl_map_handler
*he
);
80 int mapped_ioctl_unregister_handler(struct ioctl_map_handler
*he
);
82 #endif /* !_SYS_MAPPED_IOCTL_H_ */