diff options
Diffstat (limited to 'shlibs/mount/src/mountP.h')
| -rw-r--r-- | shlibs/mount/src/mountP.h | 222 |
1 files changed, 222 insertions, 0 deletions
diff --git a/shlibs/mount/src/mountP.h b/shlibs/mount/src/mountP.h new file mode 100644 index 00000000..ddd86ea2 --- /dev/null +++ b/shlibs/mount/src/mountP.h @@ -0,0 +1,222 @@ +/* + * 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> + +#define USE_UNSTABLE_LIBMOUNT_API + +#include "mount.h" +#include "list.h" + +/* features */ +#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 */ |