diff options
Diffstat (limited to 'libs/blkid/src/blkidP.h')
| -rw-r--r-- | libs/blkid/src/blkidP.h | 94 |
1 files changed, 91 insertions, 3 deletions
diff --git a/libs/blkid/src/blkidP.h b/libs/blkid/src/blkidP.h index 7ac2b82fc..f81a43998 100644 --- a/libs/blkid/src/blkidP.h +++ b/libs/blkid/src/blkidP.h @@ -16,8 +16,8 @@ #include <sys/types.h> #include <stdio.h> -#include <blkid/blkid.h> -#include <list.h> +#include "blkid.h" +#include "list.h" #ifdef __GNUC__ #define __BLKID_ATTR(x) __attribute__(x) @@ -68,6 +68,73 @@ struct blkid_struct_tag typedef struct blkid_struct_tag *blkid_tag; /* + * Low-level probe result + */ +#define BLKID_PROBVAL_BUFSIZ 64 +#define BLKID_PROBVAL_NVALS 8 /* see blkid.h BLKID_PROBREQ_* */ + +struct blkid_prval +{ + const char *name; /* value name */ + unsigned char data[BLKID_PROBVAL_BUFSIZ]; /* value data */ + size_t len; /* length of value data */ +}; + +/* + * Low-level probing control struct + */ +struct blkid_struct_probe +{ + int fd; /* device file descriptor */ + blkid_loff_t off; /* begin of data on the device */ + blkid_loff_t size; /* end of data on the device */ + + unsigned char *sbbuf; /* superblok buffer */ + size_t sbbuf_len; /* size of data in superblock buffer */ + + unsigned char *buf; /* seek buffer */ + off_t buf_off; /* offset of seek buffer */ + size_t buf_len; /* size of data in seek buffer */ + size_t buf_max; /* allocated size of seek buffer */ + + struct blkid_prval vals[BLKID_PROBVAL_NVALS]; + int nvals; + + int probreq; /* BLKID_PROBREQ_* flags */ + + unsigned long *fltr; /* filter */ +}; + +#define BLKID_SB_BUFSIZ 0x11000 + +/* + * Filesystem / Raid magic strings + */ +struct blkid_idmag +{ + const char *magic; /* magic string */ + unsigned len; /* length of magic */ + + long kboff; /* kilobyte offset of superblock */ + unsigned sboff; /* byte offset within superblock */ +}; + +/* + * Filesystem / Raid description + */ +struct blkid_idinfo +{ + const char *name; /* FS/RAID name */ + const char *secname; /* second FS/RAID name */ + int usage; /* BLKID_USAGE_* flag */ + + /* probe function */ + int (*probefunc)(blkid_probe pr, const struct blkid_idmag *mag); + + struct blkid_idmag magics[]; /* NULL or array with magic strings */ +}; + +/* * Minimum number of seconds between device probes, even when reading * from the cache. This is to avoid re-probing all devices which were * just probed by another program that does not share the cache. @@ -92,9 +159,10 @@ struct blkid_struct_cache struct list_head bic_devs; /* List head of all devices */ struct list_head bic_tags; /* List head of all tag types */ time_t bic_time; /* Last probe time */ - time_t bic_ftime; /* Mod time of the cachefile */ + time_t bic_ftime; /* Mod time of the cachefile */ unsigned int bic_flags; /* Status flags of the cache */ char *bic_filename; /* filename of cache */ + blkid_probe probe; /* low-level probing stuff */ }; #define BLKID_BIC_FL_PROBED 0x0002 /* We probed /proc/partition devices */ @@ -175,6 +243,26 @@ extern int blkid_set_tag(blkid_dev dev, const char *name, extern blkid_dev blkid_new_dev(void); extern void blkid_free_dev(blkid_dev dev); +/* probe.c */ +unsigned char *blkid_probe_get_buffer(blkid_probe pr, + blkid_loff_t off, blkid_loff_t len); +extern int blkid_probe_set_value(blkid_probe pr, const char *name, + unsigned char *data, size_t len); +extern int blkid_probe_vsprintf_value(blkid_probe pr, const char *name, + const char *fmt, va_list ap); +extern int blkid_probe_set_version(blkid_probe pr, const char *version); +extern int blkid_probe_sprintf_version(blkid_probe pr, const char *fmt, ...); +extern int blkid_probe_set_label(blkid_probe pr, unsigned char *label, size_t len); +extern int blkid_probe_set_utf8label(blkid_probe pr, unsigned char *label, + size_t len, int enc); +extern int blkid_probe_sprintf_uuid(blkid_probe pr, unsigned char *uuid, + size_t len, const char *fmt, ...); +extern int blkid_probe_set_uuid(blkid_probe pr, unsigned char *uuid); + + +#define BLKID_ENC_UTF16BE 0 +#define BLKID_ENC_UTF16LE 1 + #ifdef __cplusplus } #endif |