1/*
2 * Copyright (c) 1991, 1992 Paul Kranenburg <pk@cs.few.eur.nl>
3 * Copyright (c) 1993 Branko Lankester <branko@hacktic.nl>
4 * Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs@world.std.com>
5 * Copyright (c) 1996-2001 Wichert Akkerman <wichert@cistron.nl>
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
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 the
15 *    documentation and/or other materials provided with the distribution.
16 * 3. The name of the author may not be used to endorse or promote products
17 *    derived from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#include "defs.h"
32#include <asm/ioctl.h>
33
34static int
35compare(const void *a, const void *b)
36{
37	unsigned long code1 = (long) a;
38	unsigned long code2 = ((struct_ioctlent *) b)->code;
39	return (code1 > code2) ? 1 : (code1 < code2) ? -1 : 0;
40}
41
42const struct_ioctlent *
43ioctl_lookup(long code)
44{
45	struct_ioctlent *iop;
46
47	code &= (_IOC_NRMASK<<_IOC_NRSHIFT) | (_IOC_TYPEMASK<<_IOC_TYPESHIFT);
48	iop = bsearch((void*)code, ioctlent,
49			nioctlents, sizeof(ioctlent[0]), compare);
50	while (iop > ioctlent) {
51		iop--;
52		if (iop->code != code) {
53			iop++;
54			break;
55		}
56	}
57	return iop;
58}
59
60const struct_ioctlent *
61ioctl_next_match(const struct_ioctlent *iop)
62{
63	long code;
64
65	code = iop->code;
66	iop++;
67	if (iop < ioctlent + nioctlents && iop->code == code)
68		return iop;
69	return NULL;
70}
71
72int
73ioctl_decode(struct tcb *tcp, long code, long arg)
74{
75	switch ((code >> 8) & 0xff) {
76#if defined(ALPHA) || defined(POWERPC)
77	case 'f': case 't': case 'T':
78#else /* !ALPHA */
79	case 0x54:
80#endif /* !ALPHA */
81		return term_ioctl(tcp, code, arg);
82	case 0x89:
83		return sock_ioctl(tcp, code, arg);
84	case 'p':
85		return rtc_ioctl(tcp, code, arg);
86	case 0x03:
87	case 0x12:
88		return block_ioctl(tcp, code, arg);
89#ifdef HAVE_SCSI_SG_H
90	case 0x22:
91		return scsi_ioctl(tcp, code, arg);
92#endif
93	case 'L':
94		return loop_ioctl(tcp, code, arg);
95	case 'M':
96		return mtd_ioctl(tcp, code, arg);
97	case 'o':
98	case 'O':
99		return ubi_ioctl(tcp, code, arg);
100	case '=':
101		return ptp_ioctl(tcp, code, arg);
102	default:
103		break;
104	}
105	return 0;
106}
107
108/*
109 * Registry of ioctl characters, culled from
110 *	@(#)ioccom.h 1.7 89/06/16 SMI; from UCB ioctl.h 7.1 6/4/86
111 *
112 * char	file where defined		notes
113 * ----	------------------		-----
114 *   F	sun/fbio.h
115 *   G	sun/gpio.h
116 *   H	vaxif/if_hy.h
117 *   M	sundev/mcpcmd.h			*overlap*
118 *   M	sys/modem.h			*overlap*
119 *   S	sys/stropts.h
120 *   T	sys/termio.h			-no overlap-
121 *   T	sys/termios.h			-no overlap-
122 *   V	sundev/mdreg.h
123 *   a	vaxuba/adreg.h
124 *   d	sun/dkio.h			-no overlap with sys/des.h-
125 *   d	sys/des.h			(possible overlap)
126 *   d	vax/dkio.h			(possible overlap)
127 *   d	vaxuba/rxreg.h			(possible overlap)
128 *   f	sys/filio.h
129 *   g	sunwindow/win_ioctl.h		-no overlap-
130 *   g	sunwindowdev/winioctl.c		!no manifest constant! -no overlap-
131 *   h	sundev/hrc_common.h
132 *   i	sys/sockio.h			*overlap*
133 *   i	vaxuba/ikreg.h			*overlap*
134 *   k	sundev/kbio.h
135 *   m	sundev/msio.h			(possible overlap)
136 *   m	sundev/msreg.h			(possible overlap)
137 *   m	sys/mtio.h			(possible overlap)
138 *   n	sun/ndio.h
139 *   p	net/nit_buf.h			(possible overlap)
140 *   p	net/nit_if.h			(possible overlap)
141 *   p	net/nit_pf.h			(possible overlap)
142 *   p	sundev/fpareg.h			(possible overlap)
143 *   p	sys/sockio.h			(possible overlap)
144 *   p	vaxuba/psreg.h			(possible overlap)
145 *   q	sun/sqz.h
146 *   r	sys/sockio.h
147 *   s	sys/sockio.h
148 *   t	sys/ttold.h			(possible overlap)
149 *   t	sys/ttycom.h			(possible overlap)
150 *   v	sundev/vuid_event.h		*overlap*
151 *   v	sys/vcmd.h			*overlap*
152 *
153 * End of Registry
154 */
155