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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __IDMAP_MISSING_H
#define __IDMAP_MISSING_H
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
#include "../global.h"
#include <errno.h>
#include <linux/types.h>
#include <sched.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <syscall.h>
#include <unistd.h>
#ifndef __NR_mount_setattr
#if defined __alpha__
#define __NR_mount_setattr 552
#elif defined _MIPS_SIM
#if _MIPS_SIM == _MIPS_SIM_ABI32 /* o32 */
#define __NR_mount_setattr (442 + 4000)
#endif
#if _MIPS_SIM == _MIPS_SIM_NABI32 /* n32 */
#define __NR_mount_setattr (442 + 6000)
#endif
#if _MIPS_SIM == _MIPS_SIM_ABI64 /* n64 */
#define __NR_mount_setattr (442 + 5000)
#endif
#elif defined __ia64__
#define __NR_mount_setattr (442 + 1024)
#else
#define __NR_mount_setattr 442
#endif
#endif
#ifndef __NR_open_tree
#if defined __alpha__
#define __NR_open_tree 538
#elif defined _MIPS_SIM
#if _MIPS_SIM == _MIPS_SIM_ABI32 /* o32 */
#define __NR_open_tree 4428
#endif
#if _MIPS_SIM == _MIPS_SIM_NABI32 /* n32 */
#define __NR_open_tree 6428
#endif
#if _MIPS_SIM == _MIPS_SIM_ABI64 /* n64 */
#define __NR_open_tree 5428
#endif
#elif defined __ia64__
#define __NR_open_tree (428 + 1024)
#else
#define __NR_open_tree 428
#endif
#endif
#ifndef __NR_move_mount
#if defined __alpha__
#define __NR_move_mount 539
#elif defined _MIPS_SIM
#if _MIPS_SIM == _MIPS_SIM_ABI32 /* o32 */
#define __NR_move_mount 4429
#endif
#if _MIPS_SIM == _MIPS_SIM_NABI32 /* n32 */
#define __NR_move_mount 6429
#endif
#if _MIPS_SIM == _MIPS_SIM_ABI64 /* n64 */
#define __NR_move_mount 5429
#endif
#elif defined __ia64__
#define __NR_move_mount (428 + 1024)
#else
#define __NR_move_mount 429
#endif
#endif
#ifndef MNT_DETACH
#define MNT_DETACH 2
#endif
#ifndef MS_REC
#define MS_REC 1638
#endif
#ifndef MS_PRIVATE
#define MS_PRIVATE (1 << 18)
#endif
#ifndef MOVE_MOUNT_F_EMPTY_PATH
#define MOVE_MOUNT_F_EMPTY_PATH 0x00000004 /* Empty from path permitted */
#endif
#ifndef MOUNT_ATTR_IDMAP
#define MOUNT_ATTR_IDMAP 0x00100000
#endif
#ifndef OPEN_TREE_CLONE
#define OPEN_TREE_CLONE 1
#endif
#ifndef OPEN_TREE_CLOEXEC
#define OPEN_TREE_CLOEXEC O_CLOEXEC
#endif
#ifndef AT_RECURSIVE
#define AT_RECURSIVE 0x8000 /* Apply to the entire subtree */
#endif
#ifndef HAVE_STRUCT_MOUNT_ATTR
struct mount_attr {
__u64 attr_set;
__u64 attr_clr;
__u64 propagation;
__u64 userns_fd;
};
#endif
static inline int sys_mount_setattr(int dfd, const char *path, unsigned int flags,
struct mount_attr *attr, size_t size)
{
return syscall(__NR_mount_setattr, dfd, path, flags, attr, size);
}
static inline int sys_open_tree(int dfd, const char *filename, unsigned int flags)
{
return syscall(__NR_open_tree, dfd, filename, flags);
}
static inline int sys_move_mount(int from_dfd, const char *from_pathname, int to_dfd,
const char *to_pathname, unsigned int flags)
{
return syscall(__NR_move_mount, from_dfd, from_pathname, to_dfd, to_pathname, flags);
}
static inline int sys_mount(const char *source, const char *target, const char *fstype,
unsigned long int flags, const void *data)
{
return syscall(__NR_mount, source, target, fstype, flags, data);
}
static inline int sys_umount2(const char *path, int flags)
{
return syscall(__NR_umount2, path, flags);
}
static inline int sys_execveat(int fd, const char *path, char **argv,
char **envp, int flags)
{
#ifdef __NR_execveat
return syscall(__NR_execveat, fd, path, argv, envp, flags);
#else
errno = ENOSYS;
return -1;
#endif
}
#endif /* __IDMAP_MISSING_H */
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