src/basic/mount-util.h

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 #pragma once
   3
   4 /***
   5   This file is part of systemd.
   6
   7   Copyright 2010 Lennart Poettering
   8 ***/
   9
  10 #include <fcntl.h>
  11 #include <mntent.h>
  12 #include <stdbool.h>
  13 #include <stdio.h>
  14 #include <sys/stat.h>
  15 #include <sys/types.h>
  16
  17 #include "macro.h"
  18 #include "missing.h"
  19
  20 int name_to_handle_at_loop(int fd, const char *path, struct file_handle **ret_handle, int *ret_mnt_id, int flags);
  21
  22 int path_get_mnt_id(const char *path, int *ret);
  23
  24 int fd_is_mount_point(int fd, const char *filename, int flags);
  25 int path_is_mount_point(const char *path, const char *root, int flags);
  26
  27 int repeat_unmount(const char *path, int flags);
  28
  29 int umount_recursive(const char *target, int flags);
  30 int bind_remount_recursive(const char *prefix, bool ro, char **blacklist);
  31 int bind_remount_recursive_with_mountinfo(const char *prefix, bool ro, char **blacklist, FILE *proc_self_mountinfo);
  32
  33 int mount_move_root(const char *path);
  34
  35 DEFINE_TRIVIAL_CLEANUP_FUNC(FILE*, endmntent);
  36 #define _cleanup_endmntent_ _cleanup_(endmntentp)
  37
  38 bool fstype_is_network(const char *fstype);
  39 bool fstype_is_api_vfs(const char *fstype);
  40 bool fstype_is_ro(const char *fsype);
  41 bool fstype_can_discard(const char *fstype);
  42 bool fstype_can_uid_gid(const char *fstype);
  43
  44 const char* mode_to_inaccessible_node(mode_t mode);
  45
  46 int mount_verbose(
  47                 int error_log_level,
  48                 const char *what,
  49                 const char *where,
  50                 const char *type,
  51                 unsigned long flags,
  52                 const char *options);
  53 int umount_verbose(const char *where);
  54
  55 const char *mount_propagation_flags_to_string(unsigned long flags);
  56 int mount_propagation_flags_from_string(const char *name, unsigned long *ret);
  57
  58 int mount_option_mangle(
  59                 const char *options,
  60                 unsigned long mount_flags,
  61                 unsigned long *ret_mount_flags,
  62                 char **ret_remaining_options);