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gpt.h revision 1.37 
      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, time_t);
     78 #define GPT_READONLY	0x01
     79 #define GPT_MODIFIED	0x02
     80 #define GPT_QUIET	0x04
     81 #define GPT_NOSYNC	0x08
     82 #define GPT_FILE	0x10
     83 #define GPT_TIMESTAMP	0x20
     84 #define GPT_OPTDEV      0x8000
     85 
     86 void*	gpt_read(gpt_t, off_t, size_t);
     87 off_t	gpt_last(gpt_t);
     88 off_t	gpt_create(gpt_t, off_t, u_int, int);
     89 int	gpt_write(gpt_t, map_t);
     90 int	gpt_write_crc(gpt_t, map_t, map_t);
     91 int	gpt_write_primary(gpt_t);
     92 int	gpt_write_backup(gpt_t);
     93 struct gpt_hdr *gpt_hdr(gpt_t);
     94 void	gpt_msg(gpt_t, const char *, ...) __printflike(2, 3);
     95 void	gpt_warn(gpt_t, const char *, ...) __printflike(2, 3);
     96 void	gpt_warnx(gpt_t, const char *, ...) __printflike(2, 3);
     97 void	gpt_create_pmbr_part(struct mbr_part *, off_t, int);
     98 struct gpt_ent *gpt_ent(map_t, map_t, unsigned int);
     99 struct gpt_ent *gpt_ent_primary(gpt_t, unsigned int);
    100 struct gpt_ent *gpt_ent_backup(gpt_t, unsigned int);
    101 int	gpt_usage(const char *, const struct gpt_cmd *);
    102 
    103 void 	utf16_to_utf8(const uint16_t *, size_t, uint8_t *, size_t);
    104 void	utf8_to_utf16(const uint8_t *, uint16_t *, size_t);
    105 
    106 #define GPT_FIND "ab:i:L:s:t:"
    107 
    108 struct gpt_find {
    109 	int all;
    110 	gpt_uuid_t type;
    111 	off_t block, size;
    112 	unsigned int entry;
    113 	uint8_t *name, *label;
    114 	const char *msg;
    115 };
    116 int	gpt_change_ent(gpt_t, const struct gpt_find *,
    117     void (*)(struct gpt_ent *, void *), void *);
    118 int	gpt_add_find(gpt_t, struct gpt_find *, int);
    119 
    120 #define GPT_AIS "a:i:s:"
    121 int	gpt_add_ais(gpt_t, off_t *, u_int *, off_t *, int);
    122 off_t	gpt_check_ais(gpt_t, off_t, u_int, off_t);
    123 
    124 int	gpt_attr_get(gpt_t, uint64_t *);
    125 const char *gpt_attr_list(char *, size_t, uint64_t);
    126 void	gpt_attr_help(const char *);
    127 int	gpt_attr_update(gpt_t, u_int, uint64_t, uint64_t);
    128 int	gpt_uint_get(gpt_t, u_int *);
    129 int	gpt_human_get(gpt_t, off_t *);
    130 int	gpt_uuid_get(gpt_t, gpt_uuid_t *);
    131 int	gpt_name_get(gpt_t, void *);
    132 int	gpt_add_hdr(gpt_t, int, off_t);
    133 void	gpt_show_num(const char *, uintmax_t);
    134 
    135 #endif /* _GPT_H_ */
    136