Adding upstream version 2.33.1.upstream/2.33.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 988 insertions, 0 deletions

diff --git a/libmount/src/libmount.h.in b/libmount/src/libmount.h.in
new file mode 100644
index 0000000..63ba322
--- /dev/null
+++ b/libmount/src/libmount.h.in
@@ -0,0 +1,988 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+/*
+ * libmount.h - libmount API
+ *
+ * This file is part of libmount from util-linux project.
+ *
+ * Copyright (C) 2008-2018 Karel Zak <kzak@redhat.com>
+ *
+ * This library 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.
+ *
+ * This library 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 General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef _LIBMOUNT_MOUNT_H
+#define _LIBMOUNT_MOUNT_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdio.h>
+#include <mntent.h>
+#include <sys/types.h>
+
+/* Make sure libc MS_* definitions are used by default. Note that MS_* flags
+ * may be already defined by linux/fs.h or another file -- in this case we
+ * don't want to include sys/mount.h at all to avoid collisions.
+ */
+#if defined(__linux__) && !defined(MS_RDONLY)
+# include <sys/mount.h>
+#endif
+
+#define LIBMOUNT_VERSION   "@LIBMOUNT_VERSION@"
+#define LIBMOUNT_MAJOR_VERSION   @LIBMOUNT_MAJOR_VERSION@
+#define LIBMOUNT_MINOR_VERSION   @LIBMOUNT_MINOR_VERSION@
+#define LIBMOUNT_PATCH_VERSION   @LIBMOUNT_PATCH_VERSION@
+
+/**
+ * libmnt_cache:
+ *
+ * Stores canonicalized paths and evaluated tags
+ */
+struct libmnt_cache;
+
+/**
+ * libmnt_lock:
+ *
+ * Stores information about the locked file (e.g. /etc/mtab)
+ */
+struct libmnt_lock;
+
+/**
+ * libmnt_iter:
+ *
+ * Generic iterator (stores state about lists)
+ */
+struct libmnt_iter;
+
+/**
+ * libmnt_optmap:
+ * @name: option name[=type] where type is printf-like type specifier")
+ * @id: option ID or MS_* flags (e.g MS_RDONLY)
+ * @mask: MNT_{NOMTAB,INVERT,...} mask
+ *
+ * Mount options description (map)
+ */
+struct libmnt_optmap
+{
+	const char	*name;
+	int		id;
+	int		mask;
+};
+
+/*
+ * mount options map masks
+ */
+#define MNT_INVERT	(1 << 1) /* invert the mountflag */
+#define MNT_NOMTAB	(1 << 2) /* skip in the mtab option string */
+#define MNT_PREFIX	(1 << 3) /* prefix used for some options (e.g. "x-foo") */
+#define MNT_NOHLPS	(1 << 4) /* don't add the option to mount.<type> helpers command line */
+
+/**
+ * libmnt_fs:
+ *
+ * Parsed fstab/mtab/mountinfo entry
+ */
+struct libmnt_fs;
+
+/**
+ * libmnt_table:
+ *
+ * List of struct libmnt_fs entries (parsed fstab/mtab/mountinfo)
+ */
+struct libmnt_table;
+
+/**
+ * libmnt_update
+ *
+ * /etc/mtab or utab update description
+ */
+struct libmnt_update;
+
+/**
+ * libmnt_context
+ *
+ * Mount/umount status
+ */
+struct libmnt_context;
+
+/**
+ * libmnt_monitor
+ *
+ * Mount tables monitor
+ */
+struct libmnt_monitor;
+
+/**
+ * libmnt_tabdiff:
+ *
+ * Stores mountinfo state
+ */
+struct libmnt_tabdiff;
+
+/**
+ * libmnt_ns:
+ *
+ * Describes mount namespace
+ */
+struct libmnt_ns;
+
+/*
+ * Actions
+ */
+enum {
+	MNT_ACT_MOUNT = 1,
+	MNT_ACT_UMOUNT
+};
+
+/*
+ * Errors -- by default libmount returns -errno for generic errors (ENOMEM,
+ * EINVAL, ...) and for mount(2) errors, but for some specific operations it
+ * returns private error codes. Note that maximum system errno value should be
+ * 4095 on UNIXes.
+ *
+ * See also mnt_context_get_syscall_errno() and mnt_context_get_helper_status().
+ */
+/**
+ * MNT_ERR_NOFSTAB:
+ *
+ * not found required entry in fstab
+ */
+#define MNT_ERR_NOFSTAB      5000
+/**
+ * MNT_ERR_NOFSTYPE:
+ *
+ * failed to detect filesystem type
+ */
+#define MNT_ERR_NOFSTYPE     5001
+/**
+ * MNT_ERR_NOSOURCE:
+ *
+ * required mount source undefined
+ */
+#define MNT_ERR_NOSOURCE     5002
+/**
+ * MNT_ERR_LOOPDEV:
+ *
+ * loopdev setup failed, errno set by libc
+ */
+#define MNT_ERR_LOOPDEV      5003
+/**
+ * MNT_ERR_MOUNTOPT:
+ *
+ * failed to parse/use userspace mount options
+ */
+#define MNT_ERR_MOUNTOPT     5004
+/**
+ * MNT_ERR_APPLYFLAGS:
+ *
+ * failed to apply MS_PROPAGATION flags
+ */
+#define MNT_ERR_APPLYFLAGS   5005
+/**
+ * MNT_ERR_AMBIFS:
+ *
+ * libblkid detected more filesystems on the device
+ */
+#define MNT_ERR_AMBIFS       5006
+/**
+ * MNT_ERR_LOOPOVERLAP:
+ *
+ * detected overlapping loop device that cannot be re-used
+ */
+#define MNT_ERR_LOOPOVERLAP 5007
+/**
+ * MNT_ERR_LOCK:
+ *
+ * failed to lock mtab/utab or so.
+ */
+#define MNT_ERR_LOCK         5008
+/**
+ * MNT_ERR_NAMESPACE:
+ *
+ * failed to switch namespace
+ */
+#define MNT_ERR_NAMESPACE    5009
+
+
+/*
+ * Overall return codes -- based on mount(8) and umount(8) return codes.
+ * See mnt_context_get_excode() for more details.
+ */
+
+/**
+ * MNT_EX_SUCCESS:
+ *
+ * [u]mount(8) exit code: no errors
+ */
+#define MNT_EX_SUCCESS	0
+
+/**
+ * MNT_EX_USAGE:
+ *
+ * [u]mount(8) exit code: incorrect invocation or permission
+ */
+#define MNT_EX_USAGE	1
+
+/**
+ * MNT_EX_SYSERR:
+ *
+ * [u]mount(8) exit code: out of memory, cannot fork, ...
+ */
+
+#define MNT_EX_SYSERR	2
+
+/**
+ * MNT_EX_SOFTWARE:
+ *
+ * [u]mount(8) exit code: internal mount bug or wrong version
+ */
+#define MNT_EX_SOFTWARE	4
+
+/**
+ * MNT_EX_USER:
+ *
+ * [u]mount(8) exit code: user interrupt
+ */
+#define MNT_EX_USER	8
+
+/**
+ * MNT_EX_FILEIO:
+ *
+ * [u]mount(8) exit code: problems writing, locking, ... mtab/utab
+ */
+#define MNT_EX_FILEIO	16
+
+/**
+ * MNT_EX_FAIL:
+ *
+ * [u]mount(8) exit code: mount failure
+ */
+#define MNT_EX_FAIL	32
+
+/**
+ * MNT_EX_SOMEOK:
+ *
+ * [u]mount(8) exit code: some mount succeeded; usually when executed with
+ * --all options. Never returned by libmount.
+ */
+#define MNT_EX_SOMEOK	64
+
+
+
+#ifndef __GNUC_PREREQ
+# if defined __GNUC__ && defined __GNUC_MINOR__
+#  define __GNUC_PREREQ(maj, min)  ((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
+# else
+#  define __GNUC_PREREQ(maj, min) 0
+# endif
+#endif
+
+#ifndef __ul_attribute__
+# if __GNUC_PREREQ (3, 4)
+#  define __ul_attribute__(_a_) __attribute__(_a_)
+# else
+#  define __ul_attribute__(_a_)
+# endif
+#endif
+
+
+/* init.c */
+extern void mnt_init_debug(int mask);
+
+/* version.c */
+extern int mnt_parse_version_string(const char *ver_string);
+extern int mnt_get_library_version(const char **ver_string);
+extern int mnt_get_library_features(const char ***features);
+
+/* utils.c */
+extern char *mnt_mangle(const char *str)
+			__ul_attribute__((warn_unused_result));
+extern char *mnt_unmangle(const char *str)
+			__ul_attribute__((warn_unused_result));
+
+extern int mnt_tag_is_valid(const char *tag);
+extern int mnt_fstype_is_netfs(const char *type);
+extern int mnt_fstype_is_pseudofs(const char *type);
+
+extern int mnt_match_fstype(const char *type, const char *pattern)
+			__ul_attribute__((warn_unused_result));
+extern int mnt_match_options(const char *optstr, const char *pattern)
+			__ul_attribute__((warn_unused_result));
+extern const char *mnt_get_fstab_path(void);
+extern const char *mnt_get_swaps_path(void);
+extern const char *mnt_get_mtab_path(void);
+extern int mnt_has_regular_mtab(const char **mtab, int *writable);
+extern char *mnt_get_mountpoint(const char *path)
+			__ul_attribute__((warn_unused_result));
+
+/* cache.c */
+extern struct libmnt_cache *mnt_new_cache(void)
+			__ul_attribute__((warn_unused_result));
+extern void mnt_free_cache(struct libmnt_cache *cache);
+
+extern void mnt_ref_cache(struct libmnt_cache *cache);
+extern void mnt_unref_cache(struct libmnt_cache *cache);
+
+extern int mnt_cache_set_targets(struct libmnt_cache *cache,
+				struct libmnt_table *mtab);
+extern int mnt_cache_read_tags(struct libmnt_cache *cache, const char *devname);
+
+extern int mnt_cache_device_has_tag(struct libmnt_cache *cache,
+				const char *devname,
+                                const char *token,
+				const char *value);
+
+extern char *mnt_cache_find_tag_value(struct libmnt_cache *cache,
+				const char *devname, const char *token);
+
+extern char *mnt_get_fstype(const char *devname, int *ambi,
+			    struct libmnt_cache *cache)
+			__ul_attribute__((warn_unused_result));
+extern char *mnt_resolve_path(const char *path, struct libmnt_cache *cache)
+			__ul_attribute__((warn_unused_result));
+extern char *mnt_resolve_target(const char *path, struct libmnt_cache *cache)
+			__ul_attribute__((warn_unused_result));
+extern char *mnt_resolve_tag(const char *token, const char *value,
+			     struct libmnt_cache *cache)
+			__ul_attribute__((warn_unused_result));
+extern char *mnt_resolve_spec(const char *spec, struct libmnt_cache *cache)
+			__ul_attribute__((warn_unused_result));
+extern char *mnt_pretty_path(const char *path, struct libmnt_cache *cache)
+			__ul_attribute__((warn_unused_result));
+
+/* optstr.c */
+extern int mnt_optstr_next_option(char **optstr, char **name, size_t *namesz,
+				char **value, size_t *valuesz);
+extern int mnt_optstr_append_option(char **optstr, const char *name,
+				const char *value);
+extern int mnt_optstr_prepend_option(char **optstr, const char *name,
+				const char *value);
+
+extern int mnt_optstr_get_option(const char *optstr, const char *name,
+				char **value, size_t *valsz);
+extern int mnt_optstr_set_option(char **optstr, const char *name,
+				const char *value);
+extern int mnt_optstr_remove_option(char **optstr, const char *name);
+extern int mnt_optstr_deduplicate_option(char **optstr, const char *name);
+
+extern int mnt_split_optstr(const char *optstr,
+			    char **user, char **vfs, char **fs,
+			    int ignore_user, int ignore_vfs);
+
+extern int mnt_optstr_get_options(const char *optstr, char **subset,
+                            const struct libmnt_optmap *map, int ignore);
+
+extern int mnt_optstr_get_flags(const char *optstr, unsigned long *flags,
+				const struct libmnt_optmap *map);
+
+extern int mnt_optstr_apply_flags(char **optstr, unsigned long flags,
+                                const struct libmnt_optmap *map);
+
+/* iter.c */
+enum {
+
+	MNT_ITER_FORWARD = 0,
+	MNT_ITER_BACKWARD
+};
+extern struct libmnt_iter *mnt_new_iter(int direction)
+			__ul_attribute__((warn_unused_result));
+extern void mnt_free_iter(struct libmnt_iter *itr);
+
+extern void mnt_reset_iter(struct libmnt_iter *itr, int direction)
+			__ul_attribute__((nonnull));
+extern int mnt_iter_get_direction(struct libmnt_iter *itr)
+			__ul_attribute__((nonnull));
+
+/* optmap.c */
+enum {
+	MNT_LINUX_MAP = 1,
+	MNT_USERSPACE_MAP
+};
+extern const struct libmnt_optmap *mnt_get_builtin_optmap(int id);
+
+/* lock.c */
+extern struct libmnt_lock *mnt_new_lock(const char *datafile, pid_t id)
+			__ul_attribute__((warn_unused_result));
+extern void mnt_free_lock(struct libmnt_lock *ml);
+
+extern void mnt_unlock_file(struct libmnt_lock *ml);
+extern int mnt_lock_file(struct libmnt_lock *ml);
+extern int mnt_lock_block_signals(struct libmnt_lock *ml, int enable);
+
+/* fs.c */
+extern struct libmnt_fs *mnt_new_fs(void)
+			__ul_attribute__((warn_unused_result));
+extern void mnt_free_fs(struct libmnt_fs *fs);
+extern void mnt_ref_fs(struct libmnt_fs *fs);
+extern void mnt_unref_fs(struct libmnt_fs *fs);
+
+extern void mnt_reset_fs(struct libmnt_fs *fs);
+extern struct libmnt_fs *mnt_copy_fs(struct libmnt_fs *dest,
+				     const struct libmnt_fs *src)
+			__ul_attribute__((warn_unused_result));
+extern void *mnt_fs_get_userdata(struct libmnt_fs *fs);
+extern int mnt_fs_set_userdata(struct libmnt_fs *fs, void *data);
+extern const char *mnt_fs_get_source(struct libmnt_fs *fs);
+extern int mnt_fs_set_source(struct libmnt_fs *fs, const char *source);
+extern const char *mnt_fs_get_srcpath(struct libmnt_fs *fs);
+
+extern int mnt_fs_get_tag(struct libmnt_fs *fs, const char **name,
+			  const char **value);
+extern const char *mnt_fs_get_target(struct libmnt_fs *fs);
+extern int mnt_fs_set_target(struct libmnt_fs *fs, const char *tgt);
+extern const char *mnt_fs_get_fstype(struct libmnt_fs *fs);
+extern int mnt_fs_set_fstype(struct libmnt_fs *fs, const char *fstype);
+
+extern int mnt_fs_streq_srcpath(struct libmnt_fs *fs, const char *path)
+			__ul_attribute__((warn_unused_result));
+extern int mnt_fs_streq_target(struct libmnt_fs *fs, const char *path)
+			__ul_attribute__((warn_unused_result));
+
+extern char *mnt_fs_strdup_options(struct libmnt_fs *fs)
+			__ul_attribute__((warn_unused_result));
+extern const char *mnt_fs_get_options(struct libmnt_fs *fs)
+			__ul_attribute__((warn_unused_result));
+extern const char *mnt_fs_get_optional_fields(struct libmnt_fs *fs)
+			__ul_attribute__((warn_unused_result));
+extern int mnt_fs_get_propagation(struct libmnt_fs *fs, unsigned long *flags);
+
+extern int mnt_fs_set_options(struct libmnt_fs *fs, const char *optstr);
+extern int mnt_fs_append_options(struct libmnt_fs *fs, const char *optstr);
+extern int mnt_fs_prepend_options(struct libmnt_fs *fs, const char *optstr);
+
+extern int mnt_fs_get_option(struct libmnt_fs *fs, const char *name,
+				char **value, size_t *valsz);
+
+extern const char *mnt_fs_get_fs_options(struct libmnt_fs *fs);
+extern const char *mnt_fs_get_vfs_options(struct libmnt_fs *fs);
+extern const char *mnt_fs_get_user_options(struct libmnt_fs *fs);
+
+extern const char *mnt_fs_get_attributes(struct libmnt_fs *fs);
+extern int mnt_fs_set_attributes(struct libmnt_fs *fs, const char *optstr);
+extern int mnt_fs_get_attribute(struct libmnt_fs *fs, const char *name,
+				char **value, size_t *valsz);
+extern int mnt_fs_append_attributes(struct libmnt_fs *fs, const char *optstr);
+extern int mnt_fs_prepend_attributes(struct libmnt_fs *fs, const char *optstr);
+
+extern int mnt_fs_get_freq(struct libmnt_fs *fs);
+extern int mnt_fs_set_freq(struct libmnt_fs *fs, int freq);
+extern int mnt_fs_get_passno(struct libmnt_fs *fs);
+extern int mnt_fs_set_passno(struct libmnt_fs *fs, int passno);
+extern const char *mnt_fs_get_root(struct libmnt_fs *fs);
+extern int mnt_fs_set_root(struct libmnt_fs *fs, const char *path);
+extern const char *mnt_fs_get_bindsrc(struct libmnt_fs *fs);
+extern int mnt_fs_set_bindsrc(struct libmnt_fs *fs, const char *src);
+extern int mnt_fs_get_id(struct libmnt_fs *fs);
+extern int mnt_fs_get_parent_id(struct libmnt_fs *fs);
+extern dev_t mnt_fs_get_devno(struct libmnt_fs *fs);
+extern pid_t mnt_fs_get_tid(struct libmnt_fs *fs);
+
+extern const char *mnt_fs_get_swaptype(struct libmnt_fs *fs);
+extern off_t mnt_fs_get_size(struct libmnt_fs *fs);
+extern off_t mnt_fs_get_usedsize(struct libmnt_fs *fs);
+extern int mnt_fs_get_priority(struct libmnt_fs *fs);
+extern int mnt_fs_set_priority(struct libmnt_fs *fs, int prio);
+
+extern const char *mnt_fs_get_comment(struct libmnt_fs *fs);
+extern int mnt_fs_set_comment(struct libmnt_fs *fs, const char *comm);
+extern int mnt_fs_append_comment(struct libmnt_fs *fs, const char *comm);
+
+extern int mnt_fs_match_target(struct libmnt_fs *fs, const char *target,
+			       struct libmnt_cache *cache);
+extern int mnt_fs_match_source(struct libmnt_fs *fs, const char *source,
+			       struct libmnt_cache *cache);
+extern int mnt_fs_match_fstype(struct libmnt_fs *fs, const char *types);
+extern int mnt_fs_match_options(struct libmnt_fs *fs, const char *options);
+extern int mnt_fs_print_debug(struct libmnt_fs *fs, FILE *file);
+
+extern int mnt_fs_is_kernel(struct libmnt_fs *fs);
+extern int mnt_fs_is_swaparea(struct libmnt_fs *fs);
+extern int mnt_fs_is_netfs(struct libmnt_fs *fs);
+extern int mnt_fs_is_pseudofs(struct libmnt_fs *fs);
+
+extern void mnt_free_mntent(struct mntent *mnt);
+extern int mnt_fs_to_mntent(struct libmnt_fs *fs, struct mntent **mnt);
+
+/* tab-parse.c */
+extern struct libmnt_table *mnt_new_table_from_file(const char *filename)
+			__ul_attribute__((warn_unused_result));
+extern struct libmnt_table *mnt_new_table_from_dir(const char *dirname)
+			__ul_attribute__((warn_unused_result));
+extern int mnt_table_parse_stream(struct libmnt_table *tb, FILE *f,
+				  const char *filename);
+extern int mnt_table_parse_file(struct libmnt_table *tb, const char *filename);
+extern int mnt_table_parse_dir(struct libmnt_table *tb, const char *dirname);
+
+extern int mnt_table_parse_fstab(struct libmnt_table *tb, const char *filename);
+extern int mnt_table_parse_swaps(struct libmnt_table *tb, const char *filename);
+extern int mnt_table_parse_mtab(struct libmnt_table *tb, const char *filename);
+extern int mnt_table_set_parser_errcb(struct libmnt_table *tb,
+                int (*cb)(struct libmnt_table *tb, const char *filename, int line));
+
+/* tab.c */
+extern struct libmnt_table *mnt_new_table(void)
+			__ul_attribute__((warn_unused_result));
+extern void mnt_free_table(struct libmnt_table *tb);
+
+extern void mnt_ref_table(struct libmnt_table *tb);
+extern void mnt_unref_table(struct libmnt_table *tb);
+
+extern int mnt_reset_table(struct libmnt_table *tb);
+extern int mnt_table_get_nents(struct libmnt_table *tb);
+extern int mnt_table_is_empty(struct libmnt_table *tb);
+
+extern int mnt_table_set_userdata(struct libmnt_table *tb, void *data);
+extern void *mnt_table_get_userdata(struct libmnt_table *tb);
+
+extern void mnt_table_enable_comments(struct libmnt_table *tb, int enable);
+extern int mnt_table_with_comments(struct libmnt_table *tb);
+extern const char *mnt_table_get_intro_comment(struct libmnt_table *tb);
+extern int mnt_table_set_intro_comment(struct libmnt_table *tb, const char *comm);
+extern int mnt_table_append_intro_comment(struct libmnt_table *tb, const char *comm);
+extern int mnt_table_set_trailing_comment(struct libmnt_table *tb, const char *comm);
+extern const char *mnt_table_get_trailing_comment(struct libmnt_table *tb);
+extern int mnt_table_append_trailing_comment(struct libmnt_table *tb, const char *comm);
+
+extern int mnt_table_set_cache(struct libmnt_table *tb, struct libmnt_cache *mpc);
+extern struct libmnt_cache *mnt_table_get_cache(struct libmnt_table *tb);
+extern int mnt_table_add_fs(struct libmnt_table *tb, struct libmnt_fs *fs);
+extern int mnt_table_remove_fs(struct libmnt_table *tb, struct libmnt_fs *fs);
+extern int mnt_table_first_fs(struct libmnt_table *tb, struct libmnt_fs **fs);
+extern int mnt_table_last_fs(struct libmnt_table *tb, struct libmnt_fs **fs);
+extern int mnt_table_next_fs(struct libmnt_table *tb, struct libmnt_iter *itr,
+			     struct libmnt_fs **fs);
+extern int mnt_table_next_child_fs(struct libmnt_table *tb, struct libmnt_iter *itr,
+	                        struct libmnt_fs *parent, struct libmnt_fs **chld);
+extern int mnt_table_get_root_fs(struct libmnt_table *tb, struct libmnt_fs **root);
+extern int mnt_table_set_iter(struct libmnt_table *tb, struct libmnt_iter *itr,
+			      struct libmnt_fs *fs);
+
+enum {
+	MNT_UNIQ_FORWARD  = (1 << 1),	/* default is backward */
+	MNT_UNIQ_KEEPTREE = (1 << 2)
+};
+extern int mnt_table_uniq_fs(struct libmnt_table *tb, int flags,
+				int (*cmp)(struct libmnt_table *,
+					   struct libmnt_fs *,
+					   struct libmnt_fs *));
+
+extern struct libmnt_fs *mnt_table_find_mountpoint(struct libmnt_table *tb,
+				const char *path, int direction);
+extern struct libmnt_fs *mnt_table_find_target(struct libmnt_table *tb,
+				const char *path, int direction);
+extern struct libmnt_fs *mnt_table_find_srcpath(struct libmnt_table *tb,
+				const char *path, int direction);
+extern struct libmnt_fs *mnt_table_find_tag(struct libmnt_table *tb, const char *tag,
+				const char *val, int direction);
+extern struct libmnt_fs *mnt_table_find_target_with_option(struct libmnt_table *tb, const char *path,
+			const char *option, const char *val, int direction);
+extern struct libmnt_fs *mnt_table_find_source(struct libmnt_table *tb,
+				const char *source, int direction);
+extern struct libmnt_fs *mnt_table_find_pair(struct libmnt_table *tb,
+				const char *source,
+				const char *target, int direction);
+extern struct libmnt_fs *mnt_table_find_devno(struct libmnt_table *tb,
+				dev_t devno, int direction);
+
+extern int mnt_table_find_next_fs(struct libmnt_table *tb,
+			struct libmnt_iter *itr,
+			int (*match_func)(struct libmnt_fs *, void *),
+			void *userdata,
+		        struct libmnt_fs **fs);
+
+extern int mnt_table_is_fs_mounted(struct libmnt_table *tb, struct libmnt_fs *fstab_fs);
+
+/* tab_update.c */
+extern struct libmnt_update *mnt_new_update(void)
+			__ul_attribute__((warn_unused_result));
+extern void mnt_free_update(struct libmnt_update *upd);
+
+extern int mnt_table_replace_file(struct libmnt_table *tb, const char *filename);
+extern int mnt_table_write_file(struct libmnt_table *tb, FILE *file);
+
+extern int mnt_update_is_ready(struct libmnt_update *upd);
+extern int mnt_update_set_fs(struct libmnt_update *upd, unsigned long mountflags,
+	                      const char *target, struct libmnt_fs *fs);
+extern int mnt_update_table(struct libmnt_update *upd, struct libmnt_lock *lc);
+extern unsigned long mnt_update_get_mflags(struct libmnt_update *upd);
+extern int mnt_update_force_rdonly(struct libmnt_update *upd, int rdonly);
+extern const char *mnt_update_get_filename(struct libmnt_update *upd);
+extern struct libmnt_fs *mnt_update_get_fs(struct libmnt_update *upd);
+
+/* tab_diff.c */
+enum {
+	MNT_TABDIFF_MOUNT = 1,
+	MNT_TABDIFF_UMOUNT,
+	MNT_TABDIFF_MOVE,
+	MNT_TABDIFF_REMOUNT,
+	MNT_TABDIFF_PROPAGATION,	/* not implemented yet (TODO) */
+};
+
+extern struct libmnt_tabdiff *mnt_new_tabdiff(void)
+			__ul_attribute__((warn_unused_result));
+extern void mnt_free_tabdiff(struct libmnt_tabdiff *df);
+
+extern int mnt_diff_tables(struct libmnt_tabdiff *df,
+			   struct libmnt_table *old_tab,
+			   struct libmnt_table *new_tab);
+
+extern int mnt_tabdiff_next_change(struct libmnt_tabdiff *df,
+				   struct libmnt_iter *itr,
+				   struct libmnt_fs **old_fs,
+				   struct libmnt_fs **new_fs,
+				   int *oper);
+
+/* monitor.c */
+enum {
+	MNT_MONITOR_TYPE_USERSPACE = 1,	/* userspace mount options */
+	MNT_MONITOR_TYPE_KERNEL		/* kernel mount table */
+};
+
+extern struct libmnt_monitor *mnt_new_monitor(void);
+extern void mnt_ref_monitor(struct libmnt_monitor *mn);
+extern void mnt_unref_monitor(struct libmnt_monitor *mn);
+
+extern int mnt_monitor_enable_kernel(struct libmnt_monitor *mn, int enable);
+extern int mnt_monitor_enable_userspace(struct libmnt_monitor *mn,
+				int enable, const char *filename);
+
+extern int mnt_monitor_get_fd(struct libmnt_monitor *mn);
+extern int mnt_monitor_close_fd(struct libmnt_monitor *mn);
+extern int mnt_monitor_wait(struct libmnt_monitor *mn, int timeout);
+
+extern int mnt_monitor_next_change(struct libmnt_monitor *mn,
+			     const char **filename, int *type);
+extern int mnt_monitor_event_cleanup(struct libmnt_monitor *mn);
+
+
+/* context.c */
+
+/*
+ * Mode for mount options from fstab (or mtab), see mnt_context_set_optsmode().
+ */
+enum {
+	MNT_OMODE_IGNORE  = (1 << 1),	/* ignore mtab/fstab options */
+	MNT_OMODE_APPEND  = (1 << 2),	/* append mtab/fstab options to existing options */
+	MNT_OMODE_PREPEND = (1 << 3),	/* prepend mtab/fstab options to existing options */
+	MNT_OMODE_REPLACE = (1 << 4),	/* replace existing options with options from mtab/fstab */
+
+	MNT_OMODE_FORCE   = (1 << 5),   /* always read mtab/fstab options */
+
+	MNT_OMODE_FSTAB   = (1 << 10),	/* read from fstab */
+	MNT_OMODE_MTAB    = (1 << 11),	/* read from mtab if fstab not enabled or failed */
+	MNT_OMODE_NOTAB   = (1 << 12),	/* do not read fstab/mtab at all */
+
+	/* default */
+	MNT_OMODE_AUTO   = (MNT_OMODE_PREPEND | MNT_OMODE_FSTAB | MNT_OMODE_MTAB),
+	/* non-root users */
+	MNT_OMODE_USER   = (MNT_OMODE_REPLACE | MNT_OMODE_FORCE | MNT_OMODE_FSTAB)
+};
+
+extern struct libmnt_context *mnt_new_context(void)
+			__ul_attribute__((warn_unused_result));
+extern void mnt_free_context(struct libmnt_context *cxt);
+
+extern int mnt_reset_context(struct libmnt_context *cxt);
+extern int mnt_context_is_restricted(struct libmnt_context *cxt)
+			__ul_attribute__((nonnull));
+
+extern int mnt_context_init_helper(struct libmnt_context *cxt,
+				   int action, int flags);
+extern int mnt_context_helper_setopt(struct libmnt_context *cxt, int c, char *arg);
+
+extern int mnt_context_set_optsmode(struct libmnt_context *cxt, int mode);
+extern int mnt_context_disable_canonicalize(struct libmnt_context *cxt, int disable);
+extern int mnt_context_enable_lazy(struct libmnt_context *cxt, int enable);
+extern int mnt_context_enable_rdonly_umount(struct libmnt_context *cxt, int enable);
+extern int mnt_context_enable_rwonly_mount(struct libmnt_context *cxt, int enable);
+extern int mnt_context_disable_helpers(struct libmnt_context *cxt, int disable);
+extern int mnt_context_enable_sloppy(struct libmnt_context *cxt, int enable);
+extern int mnt_context_enable_fake(struct libmnt_context *cxt, int enable);
+extern int mnt_context_disable_mtab(struct libmnt_context *cxt, int disable);
+extern int mnt_context_enable_force(struct libmnt_context *cxt, int enable);
+extern int mnt_context_enable_verbose(struct libmnt_context *cxt, int enable);
+extern int mnt_context_enable_loopdel(struct libmnt_context *cxt, int enable);
+extern int mnt_context_enable_fork(struct libmnt_context *cxt, int enable);
+extern int mnt_context_disable_swapmatch(struct libmnt_context *cxt, int disable);
+
+extern int mnt_context_get_optsmode(struct libmnt_context *cxt);
+
+extern int mnt_context_is_lazy(struct libmnt_context *cxt)
+			__ul_attribute__((nonnull));
+extern int mnt_context_is_rdonly_umount(struct libmnt_context *cxt)
+			__ul_attribute__((nonnull));
+extern int mnt_context_is_rwonly_mount(struct libmnt_context *cxt)
+			__ul_attribute__((nonnull));
+extern int mnt_context_is_sloppy(struct libmnt_context *cxt)
+			__ul_attribute__((nonnull));
+extern int mnt_context_is_fake(struct libmnt_context *cxt)
+			__ul_attribute__((nonnull));
+extern int mnt_context_is_nomtab(struct libmnt_context *cxt)
+			__ul_attribute__((nonnull));
+extern int mnt_context_is_force(struct libmnt_context *cxt)
+			__ul_attribute__((nonnull));
+extern int mnt_context_is_verbose(struct libmnt_context *cxt)
+			__ul_attribute__((nonnull));
+extern int mnt_context_is_loopdel(struct libmnt_context *cxt)
+			__ul_attribute__((nonnull));
+extern int mnt_context_is_nohelpers(struct libmnt_context *cxt)
+			__ul_attribute__((nonnull));
+extern int mnt_context_is_nocanonicalize(struct libmnt_context *cxt)
+			__ul_attribute__((nonnull));
+extern int mnt_context_is_swapmatch(struct libmnt_context *cxt)
+			__ul_attribute__((nonnull));
+extern int mnt_context_forced_rdonly(struct libmnt_context *cxt)
+			__ul_attribute__((nonnull));
+
+extern int mnt_context_is_fork(struct libmnt_context *cxt)
+			__ul_attribute__((nonnull));
+extern int mnt_context_is_parent(struct libmnt_context *cxt)
+			__ul_attribute__((nonnull));
+extern int mnt_context_is_child(struct libmnt_context *cxt)
+			__ul_attribute__((nonnull));
+
+extern int mnt_context_wait_for_children(struct libmnt_context *cxt,
+                                  int *nchildren, int *nerrs);
+
+extern int mnt_context_is_fs_mounted(struct libmnt_context *cxt,
+                              struct libmnt_fs *fs, int *mounted);
+extern int mnt_context_set_fs(struct libmnt_context *cxt, struct libmnt_fs *fs);
+extern struct libmnt_fs *mnt_context_get_fs(struct libmnt_context *cxt);
+
+extern int mnt_context_set_source(struct libmnt_context *cxt, const char *source);
+extern int mnt_context_set_target(struct libmnt_context *cxt, const char *target);
+extern int mnt_context_set_fstype(struct libmnt_context *cxt, const char *fstype);
+
+extern const char *mnt_context_get_source(struct libmnt_context *cxt);
+extern const char *mnt_context_get_target(struct libmnt_context *cxt);
+extern const char *mnt_context_get_fstype(struct libmnt_context *cxt);
+
+extern void *mnt_context_get_mtab_userdata(struct libmnt_context *cxt);
+extern void *mnt_context_get_fstab_userdata(struct libmnt_context *cxt);
+extern void *mnt_context_get_fs_userdata(struct libmnt_context *cxt);
+
+extern int mnt_context_set_options(struct libmnt_context *cxt, const char *optstr);
+extern int mnt_context_append_options(struct libmnt_context *cxt, const char *optstr);
+
+extern const char *mnt_context_get_options(struct libmnt_context *cxt);
+
+extern int mnt_context_set_fstype_pattern(struct libmnt_context *cxt, const char *pattern);
+extern int mnt_context_set_options_pattern(struct libmnt_context *cxt, const char *pattern);
+
+extern int mnt_context_set_passwd_cb(struct libmnt_context *cxt,
+			      char *(*get)(struct libmnt_context *),
+			      void (*release)(struct libmnt_context *, char *))
+			__ul_attribute__((deprecated));
+
+extern int mnt_context_set_tables_errcb(struct libmnt_context *cxt,
+        int (*cb)(struct libmnt_table *tb, const char *filename, int line));
+extern int mnt_context_set_fstab(struct libmnt_context *cxt,
+				 struct libmnt_table *tb);
+extern int mnt_context_get_fstab(struct libmnt_context *cxt,
+				 struct libmnt_table **tb);
+
+extern int mnt_context_get_mtab(struct libmnt_context *cxt,
+				struct libmnt_table **tb);
+extern int mnt_context_get_table(struct libmnt_context *cxt,
+				const char *filename,
+				struct libmnt_table **tb);
+extern int mnt_context_set_cache(struct libmnt_context *cxt,
+				 struct libmnt_cache *cache);
+extern struct libmnt_cache *mnt_context_get_cache(struct libmnt_context *cxt);
+extern struct libmnt_lock *mnt_context_get_lock(struct libmnt_context *cxt);
+extern int mnt_context_set_mflags(struct libmnt_context *cxt,
+				      unsigned long flags);
+extern int mnt_context_get_mflags(struct libmnt_context *cxt,
+				      unsigned long *flags);
+extern int mnt_context_set_user_mflags(struct libmnt_context *cxt,
+						unsigned long flags);
+extern int mnt_context_get_user_mflags(struct libmnt_context *cxt,
+						unsigned long *flags);
+
+extern int mnt_context_set_mountdata(struct libmnt_context *cxt, void *data);
+extern int mnt_context_apply_fstab(struct libmnt_context *cxt);
+
+extern int mnt_context_reset_status(struct libmnt_context *cxt);
+extern int mnt_context_get_status(struct libmnt_context *cxt);
+
+extern int mnt_context_helper_executed(struct libmnt_context *cxt);
+extern int mnt_context_get_helper_status(struct libmnt_context *cxt);
+
+extern int mnt_context_syscall_called(struct libmnt_context *cxt);
+
+extern int mnt_context_get_syscall_errno(struct libmnt_context *cxt);
+
+extern int mnt_context_strerror(struct libmnt_context *cxt, char *buf,
+				size_t bufsiz)
+				__ul_attribute__((deprecated));
+
+extern int mnt_context_get_excode(struct libmnt_context *cxt,
+                        int rc, char *buf, size_t bufsz);
+
+extern int mnt_context_set_target_ns(struct libmnt_context *cxt, const char *path);
+extern struct libmnt_ns *mnt_context_get_target_ns(struct libmnt_context *cxt);
+extern struct libmnt_ns *mnt_context_get_origin_ns(struct libmnt_context *cxt);
+extern struct libmnt_ns *mnt_context_switch_ns(struct libmnt_context *cxt, struct libmnt_ns *ns);
+extern struct libmnt_ns *mnt_context_switch_origin_ns(struct libmnt_context *cxt);
+extern struct libmnt_ns *mnt_context_switch_target_ns(struct libmnt_context *cxt);
+
+
+/* context_mount.c */
+extern int mnt_context_mount(struct libmnt_context *cxt);
+extern int mnt_context_umount(struct libmnt_context *cxt);
+extern int mnt_context_next_mount(struct libmnt_context *cxt,
+				struct libmnt_iter *itr,
+				struct libmnt_fs **fs,
+				int *mntrc, int *ignored);
+
+extern int mnt_context_prepare_mount(struct libmnt_context *cxt)
+			__ul_attribute__((warn_unused_result));
+extern int mnt_context_do_mount(struct libmnt_context *cxt);
+extern int mnt_context_finalize_mount(struct libmnt_context *cxt);
+
+/* context_umount.c */
+extern int mnt_context_find_umount_fs(struct libmnt_context *cxt,
+			       const char *tgt,
+			       struct libmnt_fs **pfs);
+extern int mnt_context_next_umount(struct libmnt_context *cxt,
+				struct libmnt_iter *itr,
+				struct libmnt_fs **fs,
+				int *mntrc, int *ignored);
+
+extern int mnt_context_prepare_umount(struct libmnt_context *cxt)
+			__ul_attribute__((warn_unused_result));
+extern int mnt_context_do_umount(struct libmnt_context *cxt);
+extern int mnt_context_finalize_umount(struct libmnt_context *cxt);
+
+extern int mnt_context_tab_applied(struct libmnt_context *cxt);
+extern int mnt_context_set_syscall_status(struct libmnt_context *cxt, int status);
+
+/*
+ * mount(8) userspace options masks (MNT_MAP_USERSPACE map)
+ */
+#define MNT_MS_NOAUTO	(1 << 2)
+#define MNT_MS_USER	(1 << 3)
+#define MNT_MS_USERS	(1 << 4)
+#define MNT_MS_OWNER	(1 << 5)
+#define MNT_MS_GROUP	(1 << 6)
+#define MNT_MS_NETDEV	(1 << 7)
+#define MNT_MS_COMMENT  (1 << 8)
+#define MNT_MS_LOOP     (1 << 9)
+#define MNT_MS_NOFAIL   (1 << 10)
+#define MNT_MS_UHELPER  (1 << 11)
+#define MNT_MS_HELPER   (1 << 12)
+#define MNT_MS_XCOMMENT (1 << 13)
+#define MNT_MS_OFFSET   (1 << 14)
+#define MNT_MS_SIZELIMIT (1 << 15)
+#define MNT_MS_ENCRYPTION (1 << 16)
+#define MNT_MS_XFSTABCOMM (1 << 17)
+
+/*
+ * mount(2) MS_* masks (MNT_MAP_LINUX map)
+ */
+#ifndef MS_RDONLY
+#define MS_RDONLY	 1	/* Mount read-only */
+#endif
+#ifndef MS_NOSUID
+#define MS_NOSUID	 2	/* Ignore suid and sgid bits */
+#endif
+#ifndef MS_NODEV
+#define MS_NODEV	 4	/* Disallow access to device special files */
+#endif
+#ifndef MS_NOEXEC
+#define MS_NOEXEC	 8	/* Disallow program execution */
+#endif
+#ifndef MS_SYNCHRONOUS
+#define MS_SYNCHRONOUS	16	/* Writes are synced at once */
+#endif
+#ifndef MS_REMOUNT
+#define MS_REMOUNT	32	/* Alter flags of a mounted FS */
+#endif
+#ifndef MS_MANDLOCK
+#define MS_MANDLOCK	64	/* Allow mandatory locks on an FS */
+#endif
+#ifndef MS_DIRSYNC
+#define MS_DIRSYNC	128	/* Directory modifications are synchronous */
+#endif
+#ifndef MS_NOATIME
+#define MS_NOATIME	0x400	/* 1024: Do not update access times. */
+#endif
+#ifndef MS_NODIRATIME
+#define MS_NODIRATIME   0x800	/* 2048: Don't update directory access times */
+#endif
+#ifndef MS_BIND
+#define	MS_BIND		0x1000	/* 4096: Mount existing tree elsewhere as well */
+#endif
+#ifndef MS_MOVE
+#define MS_MOVE		0x2000	/* 8192: Atomically move the tree */
+#endif
+#ifndef MS_REC
+#define MS_REC		0x4000	/* 16384: Recursive loopback */
+#endif
+#ifndef MS_SILENT
+#define MS_SILENT	0x8000	/* 32768: Don't emit certain kernel messages */
+#endif
+#ifndef MS_UNBINDABLE
+#define MS_UNBINDABLE	(1<<17)	/* 131072: Make unbindable */
+#endif
+#ifndef MS_PRIVATE
+#define MS_PRIVATE	(1<<18)	/* 262144: Make private */
+#endif
+#ifndef MS_SLAVE
+#define MS_SLAVE	(1<<19)	/* 524288: Make slave */
+#endif
+#ifndef MS_SHARED
+#define MS_SHARED	(1<<20)	/* 1048576: Make shared */
+#endif
+#ifndef MS_RELATIME
+#define MS_RELATIME	(1<<21) /* 2097152: Update atime relative to mtime/ctime */
+#endif
+#ifndef MS_I_VERSION
+#define MS_I_VERSION	(1<<23)	/* Update the inode I_version field */
+#endif
+#ifndef MS_STRICTATIME
+#define MS_STRICTATIME	(1<<24) /* Always perform atime updates */
+#endif
+#ifndef MS_LAZYTIME
+#define MS_LAZYTIME     (1<<25) /* Update the on-disk [acm]times lazily */
+#endif
+
+
+/*
+ * Magic mount flag number. Had to be or-ed to the flag values.  Deprecated and
+ * no more used since libmount v2.33; required for Linux <= 2.4.
+ */
+#ifndef MS_MGC_VAL
+#define MS_MGC_VAL 0xC0ED0000	/* magic flag number to indicate "new" flags */
+#endif
+#ifndef MS_MGC_MSK
+#define MS_MGC_MSK 0xffff0000	/* magic flag number mask */
+#endif
+
+
+/* Shared-subtree options */
+#define MS_PROPAGATION  (MS_SHARED|MS_SLAVE|MS_UNBINDABLE|MS_PRIVATE)
+
+/* Options that we make ordinary users have by default.  */
+#define MS_SECURE	(MS_NOEXEC|MS_NOSUID|MS_NODEV)
+
+/* Options that we make owner-mounted devices have by default */
+#define MS_OWNERSECURE	(MS_NOSUID|MS_NODEV)
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _LIBMOUNT_MOUNT_H */