1 /* $NetBSD: gpt.h,v 1.45 2025/02/23 20:47:19 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 2002 Marcel Moolenaar 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 * $FreeBSD: src/sbin/gpt/gpt.h,v 1.11 2006/06/22 22:05:28 marcel Exp $ 29 */ 30 31 #ifndef _GPT_H_ 32 #define _GPT_H_ 33 34 #ifndef HAVE_NBTOOL_CONFIG_H 35 #include <util.h> 36 #else 37 #include "opendisk.h" 38 #include "namespace.h" 39 #endif 40 41 #include "gpt_uuid.h" 42 43 struct mbr_part { 44 uint8_t part_flag; /* bootstrap flags */ 45 uint8_t part_shd; /* starting head */ 46 uint8_t part_ssect; /* starting sector */ 47 uint8_t part_scyl; /* starting cylinder */ 48 uint8_t part_typ; /* partition type */ 49 uint8_t part_ehd; /* end head */ 50 uint8_t part_esect; /* end sector */ 51 uint8_t part_ecyl; /* end cylinder */ 52 uint16_t part_start_lo; /* absolute starting ... */ 53 uint16_t part_start_hi; /* ... sector number */ 54 uint16_t part_size_lo; /* partition size ... */ 55 uint16_t part_size_hi; /* ... in sectors */ 56 }; 57 58 struct mbr { 59 uint8_t mbr_code[446]; 60 struct mbr_part mbr_part[4]; 61 uint16_t mbr_sig; 62 #define MBR_SIG 0xAA55 63 }; 64 65 typedef struct gpt *gpt_t; 66 typedef struct map *map_t; 67 68 struct gpt_cmd { 69 const char *name; 70 int (*fptr)(gpt_t, int, char *[]); 71 const char **help; 72 size_t hlen; 73 int flags; 74 }; 75 76 uint32_t crc32(const void *, size_t); 77 void gpt_close(gpt_t); 78 int gpt_gpt(gpt_t, off_t, int); 79 gpt_t gpt_open(const char *, int, int, off_t, u_int, time_t); 80 #define GPT_READONLY 0x01 81 #define GPT_MODIFIED 0x02 82 #define GPT_QUIET 0x04 83 #define GPT_NOSYNC 0x08 84 #define GPT_FILE 0x10 85 #define GPT_TIMESTAMP 0x20 86 #define GPT_SYNC 0x40 87 #define GPT_HYBRID 0x80 88 #define GPT_OPTGPT 0x4000 89 #define GPT_OPTDEV 0x8000 90 91 void* gpt_read(gpt_t, off_t, size_t); 92 off_t gpt_last(gpt_t); 93 off_t gpt_create(gpt_t, off_t, u_int, int); 94 int gpt_write(gpt_t, map_t); 95 int gpt_write_crc(gpt_t, map_t, map_t); 96 int gpt_write_primary(gpt_t); 97 int gpt_write_backup(gpt_t); 98 struct gpt_hdr *gpt_hdr(gpt_t); 99 void gpt_msg(gpt_t, const char *, ...) __printflike(2, 3); 100 void gpt_warn(gpt_t, const char *, ...) __printflike(2, 3); 101 void gpt_warnx(gpt_t, const char *, ...) __printflike(2, 3); 102 void gpt_create_pmbr_part(struct mbr_part *, off_t, int); 103 struct gpt_ent *gpt_ent(map_t, map_t, unsigned int); 104 struct gpt_ent *gpt_ent_primary(gpt_t, unsigned int); 105 struct gpt_ent *gpt_ent_backup(gpt_t, unsigned int); 106 int gpt_usage(const char *, const struct gpt_cmd *); 107 108 void utf16_to_utf8(const uint16_t *, size_t, uint8_t *, size_t); 109 void utf8_to_utf16(const uint8_t *, uint16_t *, size_t); 110 111 #define GPT_FIND "ab:i:L:s:t:" 112 113 struct gpt_find { 114 int all; 115 gpt_uuid_t type; 116 off_t block, size; 117 unsigned int entry; 118 uint8_t *name, *label; 119 const char *msg; 120 }; 121 int gpt_change_ent(gpt_t, const struct gpt_find *, 122 void (*)(struct gpt_ent *, void *, int), void *); 123 int gpt_change_hdr(gpt_t, const struct gpt_find *, 124 void (*)(struct gpt_hdr *, void *, int), void *); 125 int gpt_add_find(gpt_t, struct gpt_find *, int); 126 127 #define GPT_AIS "a:i:s:" 128 int gpt_add_ais(gpt_t, off_t *, u_int *, off_t *, int); 129 off_t gpt_check_ais(gpt_t, off_t, u_int, off_t); 130 131 int gpt_attr_get(gpt_t, uint64_t *); 132 const char *gpt_attr_list(char *, size_t, uint64_t); 133 void gpt_attr_help(const char *); 134 int gpt_attr_update(gpt_t, u_int, uint64_t, uint64_t); 135 int gpt_uint_get(gpt_t, u_int *); 136 int gpt_human_get(gpt_t, off_t *); 137 int gpt_uuid_get(gpt_t, gpt_uuid_t *); 138 int gpt_name_get(gpt_t, void *); 139 int gpt_add_hdr(gpt_t, int, off_t); 140 void gpt_show_num(const char *, uintmax_t); 141 142 extern const struct gpt_cmd 143 c_add, 144 #ifndef HAVE_NBTOOL_CONFIG_H 145 c_backup, 146 #endif 147 c_biosboot, 148 c_create, 149 c_destroy, 150 c_header, 151 c_label, 152 c_migrate, 153 c_recover, 154 c_remove, 155 c_resize, 156 c_resizedisk, 157 #ifndef HAVE_NBTOOL_CONFIG_H 158 c_restore, 159 #endif 160 c_set, 161 c_show, 162 c_type, 163 c_unset, 164 c_uuid; 165 166 #endif /* _GPT_H_ */ 167