aboutsummaryrefslogtreecommitdiff
blob: b5b2e1194546da2cb376d364196ecbd9810d126f (plain)
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
/***
  This file is part of eudev, forked from systemd.

  Copyright 2010 Lennart Poettering

  systemd is free software; you can redistribute it and/or modify it
  under the terms of the GNU Lesser General Public License as published by
  the Free Software Foundation; either version 2.1 of the License, or
  (at your option) any later version.

  systemd is distributed in the hope that it will be useful, but
  WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public License
  along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/

#pragma once

/* Missing glibc definitions to access certain kernel APIs */

#include <sys/resource.h>
#include <sys/syscall.h>
#include <fcntl.h>
#include <stdlib.h>
#include <unistd.h>
#include <linux/oom.h>

#include "macro.h"
#include "config.h"

#ifdef ARCH_MIPS
#include <asm/sgidefs.h>
#endif

#ifndef RLIMIT_RTTIME
#define RLIMIT_RTTIME 15
#endif

/* If RLIMIT_RTTIME is not defined, then we cannot use RLIMIT_NLIMITS as is */
#define _RLIMIT_MAX (RLIMIT_RTTIME+1 > RLIMIT_NLIMITS ? RLIMIT_RTTIME+1 : RLIMIT_NLIMITS)

#ifndef __NR_getrandom
#  if defined __x86_64__
#    define __NR_getrandom 318
#  elif defined(__i386__)
#    define __NR_getrandom 355
#  elif defined(__arm__)
#    define __NR_getrandom 384
#  elif defined(__aarch64__)
#    define __NR_getrandom 278
#  elif defined(__ia64__)
#    define __NR_getrandom 1339
#  elif defined(__m68k__)
#    define __NR_getrandom 352
#  elif defined(__s390x__)
#    define __NR_getrandom 349
#  else
#    warning "__NR_getrandom unknown for your architecture"
#    define __NR_getrandom 0xffffffff
#  endif
#endif

#if !HAVE_DECL_GETRANDOM
static inline int getrandom(void *buffer, size_t count, unsigned flags) {
        return syscall(__NR_getrandom, buffer, count, flags);
}
#endif

#ifndef GRND_NONBLOCK
#define GRND_NONBLOCK 0x0001
#endif

#ifndef GRND_RANDOM
#define GRND_RANDOM 0x0002
#endif

#ifndef BTRFS_IOCTL_MAGIC
#define BTRFS_IOCTL_MAGIC 0x94
#endif

#ifndef BTRFS_PATH_NAME_MAX
#define BTRFS_PATH_NAME_MAX 4087
#endif

#ifndef HAVE_LINUX_BTRFS_H
struct btrfs_ioctl_vol_args {
        int64_t fd;
        char name[BTRFS_PATH_NAME_MAX + 1];
};
#endif

#ifndef BTRFS_IOC_DEVICES_READY
#define BTRFS_IOC_DEVICES_READY _IOR(BTRFS_IOCTL_MAGIC, 39, \
                                 struct btrfs_ioctl_vol_args)
#endif

#ifndef MS_MOVE
#define MS_MOVE 8192
#endif

#ifndef MS_PRIVATE
#define MS_PRIVATE  (1 << 18)
#endif

#if !HAVE_DECL_GETTID
static inline pid_t gettid(void) {
        return (pid_t) syscall(SYS_gettid);
}
#endif

#ifndef MS_REC
#define MS_REC 16384
#endif

#ifndef MAX_HANDLE_SZ
#define MAX_HANDLE_SZ 128
#endif

#ifndef __NR_name_to_handle_at
#  if defined(__x86_64__)
#    define __NR_name_to_handle_at 303
#  elif defined(__i386__)
#    define __NR_name_to_handle_at 341
#  elif defined(__arm__)
#    define __NR_name_to_handle_at 370
#  elif defined(__powerpc__)
#    define __NR_name_to_handle_at 345
#  else
#    error "__NR_name_to_handle_at is not defined"
#  endif
#endif

#if !HAVE_DECL_NAME_TO_HANDLE_AT
struct file_handle {
        unsigned int handle_bytes;
        int handle_type;
        unsigned char f_handle[0];
};

static inline int name_to_handle_at(int fd, const char *name, struct file_handle *handle, int *mnt_id, int flags) {
        return syscall(__NR_name_to_handle_at, fd, name, handle, mnt_id, flags);
}
#endif

#ifndef INPUT_PROP_POINTING_STICK
#define INPUT_PROP_POINTING_STICK 0x05
#endif

#ifndef INPUT_PROP_ACCELEROMETER
#define INPUT_PROP_ACCELEROMETER  0x06
#endif

#ifndef O_PATH
#define O_PATH    010000000
#endif

#ifndef AT_EMPTY_PATH
#define AT_EMPTY_PATH 0x1000
#endif

#if !HAVE_DECL_STRNDUPA
#define strndupa(s, n) \
  ({ \
    const char *__old = (s); \
    size_t __len = strnlen(__old, (n)); \
    char *__new = (char *)alloca(__len + 1); \
    __new[__len] = '\0'; \
    (char *)memcpy(__new, __old, __len); \
  })
#endif

#ifndef BTN_TRIGGER_HAPPY
#define BTN_TRIGGER_HAPPY 0x2c0
#endif

#ifndef INPUT_PROP_MAX
#define INPUT_PROP_MAX 0x1f
#endif

#ifndef KEY_ALS_TOGGLE
#define KEY_ALS_TOGGLE 0x7a
#endif