| /* |
| * mount.h - libmount API |
| * |
| * Copyright (C) 2008-2009 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 */ |
