1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #ifndef _PCFILEP_H 28 #define _PCFILEP_H 29 30 #ifdef __cplusplus 31 extern "C" { 32 #endif 33 34 #define MAX_DOSMOUNT_RETRIES 3 35 36 #define TICKS_PER_SEC 18 /* It's really 18.2! */ 37 #define SECSIZ 512 38 #define fat_bpc(i) (pi[(i)]->f_bpb.bs_spc * SECSIZ) 39 40 /* 41 * Access permissions for dosAccess(), dosOpen() 42 * NOTE: These permission need to match those for the DOS compiler. 43 */ 44 #define FILE_EXISTS 1 45 #define FILE_READ 0x0000 46 #define FILE_WRITE 0x0001 47 #define FILE_RDWR 0x0002 48 #define FILE_APPEND 0x0008 49 #define FILE_CREATE 0x0100 50 #define FILE_TRUNC 0x0200 51 52 #define TYPE_EMPTY 0x00 /* undefined partition */ 53 #define TYPE_DOS 0x13 /* causes fatInit() to search for */ 54 /* active partition */ 55 #define TYPE_DOS_12 0x01 /* partition with FAT12 filesys */ 56 #define TYPE_DOS_16 0x04 /* partition with FAT16 filesys */ 57 #define TYPE_DOS_EXT 0x05 /* not bootable, ignore */ 58 #define TYPE_HUGH 0x06 /* HUGH partition */ 59 #define TYPE_COMPAQ 0x12 /* Compaq's diag partition */ 60 #define TYPE_SOLARIS 0x82 61 #define TYPE_SOLARIS_BOOT 0xBE /* For "boot hill" project */ 62 63 #define FDISK_START 0x1be /* location in first sector where */ 64 /* the fdisk starts. */ 65 66 #define FDISK_PARTS 4 /* Number of partitions in a fdisk */ 67 #define FDISK_ACTIVE 0x80 /* indicates partition is active */ 68 #define FDISK_INACTIVE 0x00 /* " partition inactive */ 69 70 #pragma pack(1) 71 struct _fdisk_partition_ { 72 uchar_t fd_active; 73 uchar_t fd_b_head; 74 uchar_t fd_b_sec; 75 uchar_t fd_b_cyl; 76 uchar_t fd_type; 77 uchar_t fd_e_head; 78 uchar_t fd_e_sec; 79 uchar_t fd_e_cyl; 80 union { 81 long fd_start_sec_long; 82 struct { 83 ushort_t low; 84 ushort_t high; 85 } s; 86 } u; 87 long fd_part_len; 88 }; 89 #define fd_start_sec u.fd_start_sec_long 90 #define fd_partition fd_type 91 typedef struct _fdisk_partition_ _fdisk_t, *_fdisk_p; 92 #pragma pack() 93 94 #pragma pack(1) 95 struct _boot_sector_ { 96 uchar_t bs_jump_code[3]; 97 uchar_t bs_oem_name[8]; 98 uchar_t bs_bytes_sector[2]; 99 uchar_t bs_spc; /* ... sectors per cluster */ 100 uchar_t bs_resv_sectors[2]; 101 uchar_t bs_num_fats; 102 uchar_t bs_num_root_entries[2]; 103 uchar_t bs_siv[2]; /* ... sectors in volume */ 104 uchar_t bs_media; 105 uchar_t bs_spf[2]; /* ... sectors per fat */ 106 uchar_t bs_sectors_per_track[2]; 107 uchar_t bs_heads[2]; 108 /* 109 * Byte offset at this point is 28 so we can declare the next 110 * variable with the correct type and not worry about alignment. 111 */ 112 long bs_hidden_sectors; 113 long bs_lsiv; /* ... logical sectors in volume */ 114 uchar_t bs_phys_drive_num; 115 uchar_t bs_reserved; 116 uchar_t bs_ext_signature; 117 char bs_volume_id[4]; 118 char bs_volume_label[11]; 119 char bs_type[8]; 120 121 /* ---- ADDED BY SUNSOFT FOR MDBOOT ---- */ 122 ushort_t bs_offset_high; 123 ushort_t bs_offset_low; 124 }; 125 #pragma pack() 126 typedef struct _boot_sector_ _boot_sector_t, *_boot_sector_p; 127 128 /* 129 * Cluster types 130 */ 131 #define CLUSTER_AVAIL 0x00 132 #define CLUSTER_RES_12_0 0x0ff0 /* 12bit fat, first reserved */ 133 #define CLUSTER_RES_12_6 0x0ff6 /* 12bit fat, last reserved */ 134 #define CLUSTER_RES_16_0 0xfff0 /* 16bit fat, first reserved */ 135 #define CLUSTER_RES_16_6 0xfff6 /* 16bit fat, last reserved */ 136 #define CLUSTER_BAD_12 0x0ff7 /* 12bit fat, bad entry */ 137 #define CLUSTER_BAD_16 0xfff7 /* 16bit fat, bad entry */ 138 #define CLUSTER_EOF CLUSTER_EOF_16_0 139 #define CLUSTER_MAX_12 0x0ff7 /* max clusters for 12bit fat */ 140 #define CLUSTER_EOF_12_0 0x0ff8 /* 12bit fat, EOF first entry */ 141 #define CLUSTER_EOF_12_8 0x0fff /* 12bit fat, EOF last entry */ 142 #define CLUSTER_EOF_16_0 0xfff8 /* 16bit fat, EOF first entry */ 143 #define CLUSTER_EOF_16_8 0xffff /* 16bit fat, EOF last entry */ 144 145 /* 146 * Cluster operations for allocation 147 */ 148 #define CLUSTER_NOOP 0x0001 /* ... just allocate cluster */ 149 #define CLUSTER_ZEROFILL 0x0002 /* ... zero fill the alloc'd cluster */ 150 151 #define CLUSTER_FIRST 0x0002 /* ... first cluster number to search */ 152 #define CLUSTER_ROOTDIR 0x0000 /* ... root dir's cluster number */ 153 154 /* 155 * This structure is filled in by initFAT() 156 */ 157 struct _fat_controller_ { 158 union { 159 _boot_sector_t fu_bpb; /* boot parameter block */ 160 uchar_t fu_sector[SECSIZ]; 161 } fu; 162 long f_adjust; /* starting sec for part. */ 163 long f_rootsec; /* root dir starting sec. */ 164 long f_rootlen; /* length of root in sectors */ 165 long f_filesec; /* adjustment for clusters */ 166 long f_dclust; /* cur dir cluster */ 167 int f_nxtfree; /* next free cluster */ 168 int f_ncluster; /* number of cluster in part */ 169 char f_16bit:1, /* 1 if 16bit fat entries */ 170 f_flush:1; /* flush the fat */ 171 }; 172 typedef struct _fat_controller_ _fat_controller_t, *_fat_controller_p; 173 174 #define f_bpb fu.fu_bpb 175 #define f_sector fu.fu_sector 176 177 #define NAMESIZ 8 178 #define EXTSIZ 3 179 #pragma pack(1) 180 struct _dir_entry_ { 181 char d_name[NAMESIZ]; 182 char d_ext[EXTSIZ]; 183 uchar_t d_attr; 184 char d_res[10]; 185 short d_time; 186 short d_date; 187 ushort_t d_cluster; 188 long d_size; 189 }; 190 #pragma pack() 191 typedef struct _dir_entry_ _dir_entry_t, *_dir_entry_p; 192 193 /* 194 * Number of entries in one sector 195 */ 196 #define DIRENTS (SECSIZ / sizeof (_dir_entry_t)) 197 198 /* 199 * Directory entry attributes 200 */ 201 #define DE_READONLY 0x01 202 #define DE_HIDDEN 0x02 203 #define DE_SYSTEM 0x04 204 #define DE_LABEL 0x08 205 #define DE_DIRECTORY 0x10 206 #define DE_ARCHIVE 0x20 207 #define DE_RESERVED1 0x40 208 #define DE_RESERVED2 0x80 209 210 #define DE_IS_LFN (DE_READONLY | DE_HIDDEN | DE_SYSTEM | DE_LABEL) 211 212 struct _file_descriptor_ { 213 struct _file_descriptor_ *f_forw; /* link to next file descriptor */ 214 int f_desc; /* descriptor number */ 215 long f_startclust; /* starting cluster number */ 216 long f_off; /* current offset */ 217 long f_len; /* size of file */ 218 long f_index; /* index into directory block */ 219 uchar_t f_attr; /* attributes */ 220 int f_volidx; /* Volume device index */ 221 char *f_volname; /* Name of volume */ 222 }; 223 typedef struct _file_descriptor_ _file_desc_t, *_file_desc_p; 224 225 #ifdef __cplusplus 226 } 227 #endif 228 229 #endif /* _PCFILEP_H */ 230