1 /*- 2 * Copyright (c) 2006, 2007 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 * $FreeBSD$ 27 */ 28 29 #ifndef _GEOM_PART_H_ 30 #define _GEOM_PART_H_ 31 32 #define G_PART_TRACE(args) g_trace args 33 34 #define G_PART_PROBE_PRI_LOW -10 35 #define G_PART_PROBE_PRI_NORM -5 36 #define G_PART_PROBE_PRI_HIGH 0 37 38 enum g_part_alias { 39 G_PART_ALIAS_EFI, /* A EFI system partition entry. */ 40 G_PART_ALIAS_FREEBSD, /* A BSD labeled partition entry. */ 41 G_PART_ALIAS_FREEBSD_SWAP, /* A swap partition entry. */ 42 G_PART_ALIAS_FREEBSD_UFS, /* A UFS/UFS2 file system entry. */ 43 G_PART_ALIAS_FREEBSD_VINUM, /* A Vinum partition entry. */ 44 G_PART_ALIAS_MBR, /* A MBR (extended) partition entry. */ 45 /* Keep the following last */ 46 G_PART_ALIAS_COUNT 47 }; 48 49 const char *g_part_alias_name(enum g_part_alias); 50 51 /* G_PART scheme (KOBJ class). */ 52 struct g_part_scheme { 53 KOBJ_CLASS_FIELDS; 54 size_t gps_entrysz; 55 int gps_minent; 56 int gps_maxent; 57 }; 58 #define G_PART_SCHEME_DECLARE(s) DATA_SET(g_part_scheme_set, s) 59 60 struct g_part_entry { 61 LIST_ENTRY(g_part_entry) gpe_entry; 62 struct g_provider *gpe_pp; /* Corresponding provider. */ 63 off_t gpe_offset; /* Byte offset. */ 64 quad_t gpe_start; /* First LBA of partition. */ 65 quad_t gpe_end; /* Last LBA of partition. */ 66 int gpe_index; 67 int gpe_created:1; /* Entry is newly created. */ 68 int gpe_deleted:1; /* Entry has been deleted. */ 69 int gpe_modified:1; /* Entry has been modified. */ 70 }; 71 72 /* G_PART table (KOBJ instance). */ 73 struct g_part_table { 74 KOBJ_FIELDS; 75 struct g_part_scheme *gpt_scheme; 76 struct g_geom *gpt_gp; 77 LIST_HEAD(, g_part_entry) gpt_entry; 78 quad_t gpt_first; /* First allocatable LBA */ 79 quad_t gpt_last; /* Last allocatable LBA */ 80 int gpt_entries; 81 /* 82 * gpt_smhead and gpt_smtail are bitmaps representing the first 83 * 32 sectors on the disk (gpt_smhead) and the last 32 sectors 84 * on the disk (gpt_smtail). These maps are used by the commit 85 * verb to clear sectors previously used by a scheme after the 86 * partitioning scheme has been destroyed. 87 */ 88 uint32_t gpt_smhead; 89 uint32_t gpt_smtail; 90 91 int gpt_depth; /* Sub-partitioning level. */ 92 int gpt_isleaf:1; /* Cannot be sub-partitioned. */ 93 int gpt_created:1; /* Newly created. */ 94 int gpt_modified:1; /* Table changes have been made. */ 95 int gpt_opened:1; /* Permissions obtained. */ 96 }; 97 98 struct g_part_entry *g_part_new_entry(struct g_part_table *, int, quad_t, 99 quad_t); 100 101 /* G_PART ctlreq parameters. */ 102 #define G_PART_PARM_ENTRIES 0x0001 103 #define G_PART_PARM_FLAGS 0x0002 104 #define G_PART_PARM_GEOM 0x0004 105 #define G_PART_PARM_INDEX 0x0008 106 #define G_PART_PARM_LABEL 0x0010 107 #define G_PART_PARM_PROVIDER 0x0020 108 #define G_PART_PARM_REQUEST 0x0040 109 #define G_PART_PARM_RESPONSE 0x0080 110 #define G_PART_PARM_SCHEME 0x0100 111 #define G_PART_PARM_SIZE 0x0200 112 #define G_PART_PARM_START 0x0400 113 #define G_PART_PARM_TYPE 0x0800 114 115 struct g_part_parms { 116 unsigned int gpp_parms; 117 unsigned int gpp_entries; 118 const char *gpp_flags; 119 struct g_geom *gpp_geom; 120 unsigned int gpp_index; 121 const char *gpp_label; 122 struct g_provider *gpp_provider; 123 const char *gpp_request; 124 struct g_part_scheme *gpp_scheme; 125 quad_t gpp_size; 126 quad_t gpp_start; 127 const char *gpp_type; 128 }; 129 130 #endif /* !_GEOM_PART_H_ */ 131