Home | History | Annotate | Line # | Download | only in gpt
gpt.h revision 1.24 
      1 /*-
      2  * Copyright (c) 2002 Marcel Moolenaar
      3  * All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  *
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  *
     15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     25  *
     26  * $FreeBSD: src/sbin/gpt/gpt.h,v 1.11 2006/06/22 22:05:28 marcel Exp $
     27  */
     28 
     29 #ifndef _GPT_H_
     30 #define	_GPT_H_
     31 
     32 #ifndef HAVE_NBTOOL_CONFIG_H
     33 #include <util.h>
     34 #else
     35 #include "opendisk.h"
     36 #include "namespace.h"
     37 #endif
     38 
     39 #include "gpt_uuid.h"
     40 
     41 struct mbr_part {
     42 	uint8_t		part_flag;		/* bootstrap flags */
     43 	uint8_t		part_shd;		/* starting head */
     44 	uint8_t		part_ssect;		/* starting sector */
     45 	uint8_t		part_scyl;		/* starting cylinder */
     46 	uint8_t		part_typ;		/* partition type */
     47 	uint8_t		part_ehd;		/* end head */
     48 	uint8_t		part_esect;		/* end sector */
     49 	uint8_t		part_ecyl;		/* end cylinder */
     50 	uint16_t	part_start_lo;		/* absolute starting ... */
     51 	uint16_t	part_start_hi;		/* ... sector number */
     52 	uint16_t	part_size_lo;		/* partition size ... */
     53 	uint16_t	part_size_hi;		/* ... in sectors */
     54 };
     55 
     56 struct mbr {
     57 	uint8_t		mbr_code[446];
     58 	struct mbr_part	mbr_part[4];
     59 	uint16_t	mbr_sig;
     60 #define	MBR_SIG		0xAA55
     61 };
     62 
     63 typedef struct gpt *gpt_t;
     64 typedef struct map *map_t;
     65 
     66 struct gpt_cmd {
     67 	const char *name;
     68 	int (*fptr)(gpt_t, int, char *[]);
     69 	const char **help;
     70 	size_t hlen;
     71 	int flags;
     72 };
     73 
     74 uint32_t crc32(const void *, size_t);
     75 void	gpt_close(gpt_t);
     76 int	gpt_gpt(gpt_t, off_t, int);
     77 gpt_t	gpt_open(const char *, int, int, off_t, u_int);
     78 void*	gpt_read(gpt_t, off_t, size_t);
     79 int	gpt_write(gpt_t, map_t);
     80 int	gpt_write_crc(gpt_t, map_t, map_t);
     81 int	gpt_write_primary(gpt_t);
     82 int	gpt_write_backup(gpt_t);
     83 struct gpt_hdr *gpt_hdr(gpt_t);
     84 void	gpt_msg(gpt_t, const char *, ...) __printflike(2, 3);
     85 void	gpt_warn(gpt_t, const char *, ...) __printflike(2, 3);
     86 void	gpt_warnx(gpt_t, const char *, ...) __printflike(2, 3);
     87 void	gpt_create_pmbr_part(struct mbr_part *, off_t);
     88 off_t	gpt_check(gpt_t, off_t, off_t);
     89 struct gpt_ent *gpt_ent(map_t, map_t, unsigned int);
     90 struct gpt_ent *gpt_ent_primary(gpt_t, unsigned int);
     91 struct gpt_ent *gpt_ent_backup(gpt_t, unsigned int);
     92 int	gpt_usage(const char *, const struct gpt_cmd *);
     93 
     94 uint8_t *utf16_to_utf8(uint16_t *);
     95 void	utf8_to_utf16(const uint8_t *, uint16_t *, size_t);
     96 
     97 #define GPT_READONLY	1
     98 #define GPT_MODIFIED	2
     99 #define GPT_QUIET	4
    100 #define GPT_NOSYNC	8
    101 
    102 #endif /* _GPT_H_ */
    103