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/*-*- 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 BTRFS_DEVICE_PATH_NAME_MAX
#define BTRFS_DEVICE_PATH_NAME_MAX 1024
#endif
#ifndef BTRFS_FSID_SIZE
#define BTRFS_FSID_SIZE 16
#endif
#ifndef BTRFS_UUID_SIZE
#define BTRFS_UUID_SIZE 16
#endif
#ifndef HAVE_LINUX_BTRFS_H
struct btrfs_ioctl_vol_args {
int64_t fd;
char name[BTRFS_PATH_NAME_MAX + 1];
};
struct btrfs_ioctl_dev_info_args {
uint64_t devid; /* in/out */
uint8_t uuid[BTRFS_UUID_SIZE]; /* in/out */
uint64_t bytes_used; /* out */
uint64_t total_bytes; /* out */
uint64_t unused[379]; /* pad to 4k */
char path[BTRFS_DEVICE_PATH_NAME_MAX]; /* out */
};
struct btrfs_ioctl_fs_info_args {
uint64_t max_id; /* out */
uint64_t num_devices; /* out */
uint8_t fsid[BTRFS_FSID_SIZE]; /* out */
uint64_t reserved[124]; /* pad to 1k */
};
#endif
#ifndef BTRFS_IOC_DEFRAG
#define BTRFS_IOC_DEFRAG _IOW(BTRFS_IOCTL_MAGIC, 2, \
struct btrfs_ioctl_vol_args)
#endif
#ifndef BTRFS_IOC_DEV_INFO
#define BTRFS_IOC_DEV_INFO _IOWR(BTRFS_IOCTL_MAGIC, 30, \
struct btrfs_ioctl_dev_info_args)
#endif
#ifndef BTRFS_IOC_FS_INFO
#define BTRFS_IOC_FS_INFO _IOR(BTRFS_IOCTL_MAGIC, 31, \
struct btrfs_ioctl_fs_info_args)
#endif
#ifndef BTRFS_IOC_DEVICES_READY
#define BTRFS_IOC_DEVICES_READY _IOR(BTRFS_IOCTL_MAGIC, 39, \
struct btrfs_ioctl_vol_args)
#endif
#ifndef BTRFS_SUPER_MAGIC
#define BTRFS_SUPER_MAGIC 0x9123683E
#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
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