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
|
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
#pragma once
/***
This file is part of 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/>.
***/
/* 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
#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_PRIVATE
#define MS_PRIVATE (1 << 18)
#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
|
