1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
|
/* $Id: ia32_ioctl.c,v 1.25 2002/10/11 07:17:06 ak Exp $
* ioctl32.c: Conversion between 32bit and 64bit native ioctls.
*
* Copyright (C) 1997-2000 Jakub Jelinek (jakub@redhat.com)
* Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be)
* Copyright (C) 2001,2002 Andi Kleen, SuSE Labs
*
* These routines maintain argument size conversion between 32bit and 64bit
* ioctls.
*/
#define INCLUDES
#include <linux/syscalls.h>
#include "compat_ioctl.c"
#include <asm/mtrr.h>
#include <asm/ia32.h>
#define CODE
#include "compat_ioctl.c"
#ifndef TIOCGDEV
#define TIOCGDEV _IOR('T',0x32, unsigned int)
#endif
static int tiocgdev(unsigned fd, unsigned cmd, unsigned int __user *ptr)
{
struct file *file;
struct tty_struct *real_tty;
int fput_needed, ret;
file = fget_light(fd, &fput_needed);
if (!file)
return -EBADF;
ret = -EINVAL;
if (file->f_op->ioctl != tty_ioctl)
goto out;
real_tty = (struct tty_struct *)file->private_data;
if (!real_tty)
goto out;
ret = put_user(new_encode_dev(tty_devnum(real_tty)), ptr);
out:
fput_light(file, fput_needed);
return ret;
}
#define RTC_IRQP_READ32 _IOR('p', 0x0b, unsigned int) /* Read IRQ rate */
#define RTC_IRQP_SET32 _IOW('p', 0x0c, unsigned int) /* Set IRQ rate */
#define RTC_EPOCH_READ32 _IOR('p', 0x0d, unsigned) /* Read epoch */
#define RTC_EPOCH_SET32 _IOW('p', 0x0e, unsigned) /* Set epoch */
static int rtc32_ioctl(unsigned fd, unsigned cmd, unsigned long arg)
{
unsigned long val;
mm_segment_t oldfs = get_fs();
int ret;
switch (cmd) {
case RTC_IRQP_READ32:
set_fs(KERNEL_DS);
ret = sys_ioctl(fd, RTC_IRQP_READ, (unsigned long)&val);
set_fs(oldfs);
if (!ret)
ret = put_user(val, (unsigned int __user *) arg);
return ret;
case RTC_IRQP_SET32:
cmd = RTC_IRQP_SET;
break;
case RTC_EPOCH_READ32:
set_fs(KERNEL_DS);
ret = sys_ioctl(fd, RTC_EPOCH_READ, (unsigned long) &val);
set_fs(oldfs);
if (!ret)
ret = put_user(val, (unsigned int __user *) arg);
return ret;
case RTC_EPOCH_SET32:
cmd = RTC_EPOCH_SET;
break;
}
return sys_ioctl(fd,cmd,arg);
}
/* /proc/mtrr ioctls */
struct mtrr_sentry32
{
compat_ulong_t base; /* Base address */
compat_uint_t size; /* Size of region */
compat_uint_t type; /* Type of region */
};
struct mtrr_gentry32
{
compat_ulong_t regnum; /* Register number */
compat_uint_t base; /* Base address */
compat_uint_t size; /* Size of region */
compat_uint_t type; /* Type of region */
};
#define MTRR_IOCTL_BASE 'M'
#define MTRRIOC32_ADD_ENTRY _IOW(MTRR_IOCTL_BASE, 0, struct mtrr_sentry32)
#define MTRRIOC32_SET_ENTRY _IOW(MTRR_IOCTL_BASE, 1, struct mtrr_sentry32)
#define MTRRIOC32_DEL_ENTRY _IOW(MTRR_IOCTL_BASE, 2, struct mtrr_sentry32)
#define MTRRIOC32_GET_ENTRY _IOWR(MTRR_IOCTL_BASE, 3, struct mtrr_gentry32)
#define MTRRIOC32_KILL_ENTRY _IOW(MTRR_IOCTL_BASE, 4, struct mtrr_sentry32)
#define MTRRIOC32_ADD_PAGE_ENTRY _IOW(MTRR_IOCTL_BASE, 5, struct mtrr_sentry32)
#define MTRRIOC32_SET_PAGE_ENTRY _IOW(MTRR_IOCTL_BASE, 6, struct mtrr_sentry32)
#define MTRRIOC32_DEL_PAGE_ENTRY _IOW(MTRR_IOCTL_BASE, 7, struct mtrr_sentry32)
#define MTRRIOC32_GET_PAGE_ENTRY _IOWR(MTRR_IOCTL_BASE, 8, struct mtrr_gentry32)
#define MTRRIOC32_KILL_PAGE_ENTRY _IOW(MTRR_IOCTL_BASE, 9, struct mtrr_sentry32)
static int mtrr_ioctl32(unsigned int fd, unsigned int cmd, unsigned long arg)
{
struct mtrr_gentry g;
struct mtrr_sentry s;
int get = 0, err = 0;
struct mtrr_gentry32 __user *g32 = (struct mtrr_gentry32 __user *)arg;
mm_segment_t oldfs = get_fs();
switch (cmd) {
#define SET(x) case MTRRIOC32_ ## x ## _ENTRY: cmd = MTRRIOC_ ## x ## _ENTRY; break
#define GET(x) case MTRRIOC32_ ## x ## _ENTRY: cmd = MTRRIOC_ ## x ## _ENTRY; get=1; break
SET(ADD);
SET(SET);
SET(DEL);
GET(GET);
SET(KILL);
SET(ADD_PAGE);
SET(SET_PAGE);
SET(DEL_PAGE);
GET(GET_PAGE);
SET(KILL_PAGE);
}
if (get) {
err = get_user(g.regnum, &g32->regnum);
err |= get_user(g.base, &g32->base);
err |= get_user(g.size, &g32->size);
err |= get_user(g.type, &g32->type);
arg = (unsigned long)&g;
} else {
struct mtrr_sentry32 __user *s32 = (struct mtrr_sentry32 __user *)arg;
err = get_user(s.base, &s32->base);
err |= get_user(s.size, &s32->size);
err |= get_user(s.type, &s32->type);
arg = (unsigned long)&s;
}
if (err) return err;
set_fs(KERNEL_DS);
err = sys_ioctl(fd, cmd, arg);
set_fs(oldfs);
if (!err && get) {
err = put_user(g.base, &g32->base);
err |= put_user(g.size, &g32->size);
err |= put_user(g.regnum, &g32->regnum);
err |= put_user(g.type, &g32->type);
}
return err;
}
#define HANDLE_IOCTL(cmd,handler) { (cmd), (ioctl_trans_handler_t)(handler) },
#define COMPATIBLE_IOCTL(cmd) HANDLE_IOCTL(cmd,sys_ioctl)
struct ioctl_trans ioctl_start[] = {
#include <linux/compat_ioctl.h>
#define DECLARES
#include "compat_ioctl.c"
COMPATIBLE_IOCTL(HDIO_SET_KEEPSETTINGS)
COMPATIBLE_IOCTL(HDIO_SCAN_HWIF)
COMPATIBLE_IOCTL(BLKRASET)
COMPATIBLE_IOCTL(0x4B50) /* KDGHWCLK - not in the kernel, but don't complain */
COMPATIBLE_IOCTL(0x4B51) /* KDSHWCLK - not in the kernel, but don't complain */
COMPATIBLE_IOCTL(FIOQSIZE)
/* And these ioctls need translation */
HANDLE_IOCTL(TIOCGDEV, tiocgdev)
/* realtime device */
HANDLE_IOCTL(RTC_IRQP_READ, rtc32_ioctl)
HANDLE_IOCTL(RTC_IRQP_READ32,rtc32_ioctl)
HANDLE_IOCTL(RTC_IRQP_SET32, rtc32_ioctl)
HANDLE_IOCTL(RTC_EPOCH_READ32, rtc32_ioctl)
HANDLE_IOCTL(RTC_EPOCH_SET32, rtc32_ioctl)
/* take care of sizeof(sizeof()) breakage */
/* mtrr */
HANDLE_IOCTL(MTRRIOC32_ADD_ENTRY, mtrr_ioctl32)
HANDLE_IOCTL(MTRRIOC32_SET_ENTRY, mtrr_ioctl32)
HANDLE_IOCTL(MTRRIOC32_DEL_ENTRY, mtrr_ioctl32)
HANDLE_IOCTL(MTRRIOC32_GET_ENTRY, mtrr_ioctl32)
HANDLE_IOCTL(MTRRIOC32_KILL_ENTRY, mtrr_ioctl32)
HANDLE_IOCTL(MTRRIOC32_ADD_PAGE_ENTRY, mtrr_ioctl32)
HANDLE_IOCTL(MTRRIOC32_SET_PAGE_ENTRY, mtrr_ioctl32)
HANDLE_IOCTL(MTRRIOC32_DEL_PAGE_ENTRY, mtrr_ioctl32)
HANDLE_IOCTL(MTRRIOC32_GET_PAGE_ENTRY, mtrr_ioctl32)
HANDLE_IOCTL(MTRRIOC32_KILL_PAGE_ENTRY, mtrr_ioctl32)
};
int ioctl_table_size = ARRAY_SIZE(ioctl_start);
|
