/*
* mountP.h - private library header file
*
* Copyright (C) 2008-2009 Karel Zak <kzak@redhat.com>
*
* This file may be redistributed under the terms of the
* GNU Lesser General Public License.
*/
#ifndef _LIBMOUNT_PRIVATE_H
#define _LIBMOUNT_PRIVATE_H
#include <sys/types.h>
#include "mount.h"
#include "list.h"
/* features */
#define CONFIG_CDROM_NOMEDIUM_RETRIES 5
#define CONFIG_LIBMOUNT_ASSERT
#define CONFIG_LIBMOUNT_DEBUG
#ifdef CONFIG_LIBMOUNT_ASSERT
#include <assert.h>
#endif
/*
* Debug
*/
#if defined(TEST_PROGRAM) && !defined(LIBMOUNT_DEBUG)
#define CONFIG_LIBMOUNT_DEBUG
#endif
#define DEBUG_INIT (1 << 1)
#define DEBUG_CACHE (1 << 2)
#define DEBUG_OPTIONS (1 << 3)
#define DEBUG_LOCKS (1 << 4)
#define DEBUG_TAB (1 << 5)
#define DEBUG_ALL 0xFFFF
#ifdef CONFIG_LIBMOUNT_DEBUG
#include <stdio.h>
extern int libmount_debug_mask;
#define DBG(m,x) if ((m) & libmount_debug_mask) x
#else
#define DBG(m,x)
#endif
#ifdef TEST_PROGRAM
struct mtest {
const char *name;
int (*body)(struct mtest *ts, int argc, char *argv[]);
const char *usage;
};
/* utils.c */
extern int mnt_run_test(struct mtest *tests, int argc, char *argv[]);
#endif
/* utils.c */
extern char *mnt_getenv_safe(const char *arg);
#ifndef HAVE_STRNLEN
extern size_t strnlen(const char *s, size_t maxlen);
#endif
#ifndef HAVE_STRNDUP
extern char *strndup(const char *s, size_t n);
#endif
#ifndef HAVE_STRNCHR
extern char *strnchr(const char *s, size_t maxlen, int c);
#endif
extern char *mnt_get_username(const uid_t uid);
extern char *mnt_strconcat3(char *s, const char *t, const char *u);
/*
* Generic iterator
*/
struct _mnt_iter {
struct list_head *p; /* current position */
struct list_head *head; /* start position */
int direction; /* MNT_ITER_{FOR,BACK}WARD */
};
#define IS_ITER_FORWARD(_i) ((_i)->direction == MNT_ITER_FORWARD)
#define IS_ITER_BACKWARD(_i) ((_i)->direction == MNT_ITER_BACKWARD)
#define MNT_ITER_INIT(itr, list) \
do { \
(itr)->p = IS_ITER_FORWARD(itr) ? \
(list)->next : (list)->prev; \
(itr)->head = (list); \
} while(0)
#define MNT_ITER_ITERATE(itr, res, restype, member) \
do { \
res = list_entry((itr)->p, restype, member); \
(itr)->p = IS_ITER_FORWARD(itr) ? \
(itr)->p->next : (itr)->p->prev; \
} while(0)
/*
* mnt_optls entry
*/
struct _mnt_optent {
char *name; /* option name (allcocated when mapent is NULL) */
char *value; /* option argument value */
int mask; /* MNT_{INVMASK,MDATA,MFLAG,NOMTAB,NOSYS}
* modifiable flags (initial value comes from map->mask)
*/
const struct mnt_optmap *mapent;/* the option description (msp entry) */
const struct mnt_optmap *map; /* head of the map */
struct list_head opts; /* list of options */
};
/*
* Container (list) for mount options
*/
struct _mnt_optls {
struct mnt_optmap const **maps; /* array with option maps */
size_t nmaps; /* number of maps */
struct list_head opts; /* list of options */
};
/*
* This struct represents one entry in mtab/fstab/mountinfo file.
*/
struct _mnt_fs {
struct list_head ents;
int id; /* mountinfo[1]: ID */
int parent; /* moutninfo[2]: parent */
dev_t devno; /* moutninfo[3]: st_dev */
char *source; /* fstab[1]: mountinfo[10]:
* source dev, file, dir or TAG */
char *tagname; /* fstab[1]: tag name - "LABEL", "UUID", ..*/
char *tagval; /* tag value */
char *mntroot; /* mountinfo[4]: root of the mount within the FS */
char *target; /* mountinfo[5], fstab[2]: mountpoint */
char *fstype; /* mountinfo[9], fstab[3]: filesystem type */
char *optstr; /* mountinfo[6,11], fstab[4]: option string */
char *vfs_optstr; /* mountinfo[6]: fs-independent (VFS) options */
char *fs_optstr; /* mountinfo[11]: fs-depend options */
int freq; /* fstab[5]: dump frequency in days */
int passno; /* fstab[6]: pass number on parallel fsck */
int flags; /* MNT_FS_* flags */
int lineno; /* line number in the parental file */
void *userdata; /* library independent data */
};
/*
* fs flags
*/
#define MNT_FS_ERROR (1 << 1) /* broken entry */
#define MNT_FS_PSEUDO (1 << 2) /* pseudo filesystem */
#define MNT_FS_NET (1 << 3) /* network filesystem */
/*
* File format
*/
enum {
MNT_FMT_FSTAB = 1, /* /etc/{fs,m}tab */
MNT_FMT_MOUNTINFO /* /proc/#/mountinfo */
};
/*
* mtab/fstab/mountinfo file
*/
struct _mnt_tab {
char *filename; /* file name or NULL */
int fmt; /* MNT_FMT_* file format */
int nlines; /* number of lines in the file (include commentrys) */
int nents; /* number of valid entries */
int nerrs; /* number of broken entries (parse errors) */
mnt_cache *cache; /* canonicalized paths/tags cache */
struct list_head ents; /* list of entries (mentry) */
};
/* optmap.c */
extern const struct mnt_optmap *mnt_optmap_get_entry(struct mnt_optmap const **maps,
int nmaps, const char *name,
size_t namelen, const struct mnt_optmap **mapent);
extern int mnt_optmap_enum_to_number(const struct mnt_optmap *mapent,
const char *rawdata, size_t len);
extern const char *mnt_optmap_get_type(const struct mnt_optmap *mapent);
extern int mnt_optmap_require_value(const struct mnt_optmap *mapent);
/* optent.c */
/* private option masks -- see mount.h.in for the publick masks */
#define MNT_HASVAL (1 << 10)
extern mnt_optent *mnt_new_optent(const char *name, size_t namesz,
const char *value, size_t valsz,
struct mnt_optmap const **maps, int nmaps);
extern void mnt_free_optent(mnt_optent *op);
extern mnt_optent *mnt_new_optent_from_optstr(char **optstr,
struct mnt_optmap const **maps, int nmaps);
extern int mnt_optent_assign_map(mnt_optent *op,
struct mnt_optmap const **maps, int nmaps);
/* fs.c */
extern int __mnt_fs_set_source(mnt_fs *fs, char *source);
extern int __mnt_fs_set_fstype(mnt_fs *fs, char *fstype);
#endif /* _LIBMOUNT_PRIVATE_H */
