| 1 | /* $NetBSD: disklabel.h,v 1.119 2015/12/08 20:36:15 christos Exp $ */ |
| 2 | |
| 3 | /* |
| 4 | * Copyright (c) 1987, 1988, 1993 |
| 5 | * The Regents of the University of California. 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 | * 1. Redistributions of source code must retain the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer. |
| 12 | * 2. Redistributions in binary form must reproduce the above copyright |
| 13 | * notice, this list of conditions and the following disclaimer in the |
| 14 | * documentation and/or other materials provided with the distribution. |
| 15 | * 3. Neither the name of the University nor the names of its contributors |
| 16 | * may be used to endorse or promote products derived from this software |
| 17 | * without specific prior written permission. |
| 18 | * |
| 19 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| 20 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 21 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 22 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| 23 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 24 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 25 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 26 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 27 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 28 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 29 | * SUCH DAMAGE. |
| 30 | * |
| 31 | * @(#)disklabel.h 8.2 (Berkeley) 7/10/94 |
| 32 | */ |
| 33 | |
| 34 | #ifndef _SYS_DISKLABEL_H_ |
| 35 | #define _SYS_DISKLABEL_H_ |
| 36 | |
| 37 | /* |
| 38 | * We need <machine/types.h> for __HAVE_OLD_DISKLABEL |
| 39 | */ |
| 40 | #ifndef _LOCORE |
| 41 | #include <sys/types.h> |
| 42 | #endif |
| 43 | |
| 44 | /* |
| 45 | * Each disk has a label which includes information about the hardware |
| 46 | * disk geometry, filesystem partitions, and drive specific information. |
| 47 | * The location of the label, as well as the number of partitions the |
| 48 | * label can describe and the number of the "whole disk" (raw) |
| 49 | * partition are machine dependent. |
| 50 | */ |
| 51 | #if HAVE_NBTOOL_CONFIG_H |
| 52 | #undef MAXPARTITIONS |
| 53 | #define MAXPARTITIONS MAXMAXPARTITIONS |
| 54 | #else |
| 55 | #include <machine/disklabel.h> |
| 56 | #endif /* HAVE_NBTOOL_CONFIG_H */ |
| 57 | |
| 58 | /* |
| 59 | * The absolute maximum number of disk partitions allowed. |
| 60 | * This is the maximum value of MAXPARTITIONS for which 'struct disklabel' |
| 61 | * is <= DEV_BSIZE bytes long. If MAXPARTITIONS is greater than this, beware. |
| 62 | */ |
| 63 | #define MAXMAXPARTITIONS 22 |
| 64 | #if MAXPARTITIONS > MAXMAXPARTITIONS |
| 65 | #warning beware: MAXPARTITIONS bigger than MAXMAXPARTITIONS |
| 66 | #endif |
| 67 | |
| 68 | /* |
| 69 | * Ports can switch their MAXPARTITIONS once, as follows: |
| 70 | * |
| 71 | * - define OLDMAXPARTITIONS in <machine/disklabel.h> as the old number |
| 72 | * - define MAXPARTITIONS as the new number |
| 73 | * - define DISKUNIT, DISKPART and DISKMINOR macros in <machine/disklabel.h> |
| 74 | * as appropriate for the port (see the i386 one for an example). |
| 75 | * - define __HAVE_OLD_DISKLABEL in <machine/types.h> |
| 76 | */ |
| 77 | |
| 78 | #if defined(_KERNEL) && defined(__HAVE_OLD_DISKLABEL) && \ |
| 79 | (MAXPARTITIONS < OLDMAXPARTITIONS) |
| 80 | #error "can only grow disklabel size" |
| 81 | #endif |
| 82 | |
| 83 | |
| 84 | /* |
| 85 | * Translate between device numbers and major/disk unit/disk partition. |
| 86 | */ |
| 87 | #ifndef __HAVE_OLD_DISKLABEL |
| 88 | #if !HAVE_NBTOOL_CONFIG_H |
| 89 | #define DISKUNIT(dev) (minor(dev) / MAXPARTITIONS) |
| 90 | #define DISKPART(dev) (minor(dev) % MAXPARTITIONS) |
| 91 | #define DISKMINOR(unit, part) \ |
| 92 | (((unit) * MAXPARTITIONS) + (part)) |
| 93 | #endif /* !HAVE_NBTOOL_CONFIG_H */ |
| 94 | #endif |
| 95 | #define MAKEDISKDEV(maj, unit, part) \ |
| 96 | (makedev((maj), DISKMINOR((unit), (part)))) |
| 97 | |
| 98 | #define DISKMAGIC ((uint32_t)0x82564557) /* The disk magic number */ |
| 99 | |
| 100 | #ifndef _LOCORE |
| 101 | struct partition { /* the partition table */ |
| 102 | uint32_t p_size; /* number of sectors in partition */ |
| 103 | uint32_t p_offset; /* starting sector */ |
| 104 | union { |
| 105 | uint32_t fsize; /* FFS, ADOS: filesystem basic fragment size */ |
| 106 | uint32_t cdsession; /* ISO9660: session offset */ |
| 107 | } __partition_u2; |
| 108 | #define p_fsize __partition_u2.fsize |
| 109 | #define p_cdsession __partition_u2.cdsession |
| 110 | uint8_t p_fstype; /* filesystem type, see below */ |
| 111 | uint8_t p_frag; /* filesystem fragments per block */ |
| 112 | union { |
| 113 | uint16_t cpg; /* UFS: FS cylinders per group */ |
| 114 | uint16_t sgs; /* LFS: FS segment shift */ |
| 115 | } __partition_u1; |
| 116 | #define p_cpg __partition_u1.cpg |
| 117 | #define p_sgs __partition_u1.sgs |
| 118 | }; |
| 119 | struct disklabel { |
| 120 | uint32_t d_magic; /* the magic number */ |
| 121 | uint16_t d_type; /* drive type */ |
| 122 | uint16_t d_subtype; /* controller/d_type specific */ |
| 123 | char d_typename[16]; /* type name, e.g. "eagle" */ |
| 124 | |
| 125 | /* |
| 126 | * d_packname contains the pack identifier and is returned when |
| 127 | * the disklabel is read off the disk or in-core copy. |
| 128 | * d_boot0 and d_boot1 are the (optional) names of the |
| 129 | * primary (block 0) and secondary (block 1-15) bootstraps |
| 130 | * as found in /usr/mdec. These are returned when using |
| 131 | * getdiskbyname(3) to retrieve the values from /etc/disktab. |
| 132 | */ |
| 133 | union { |
| 134 | char un_d_packname[16]; /* pack identifier */ |
| 135 | struct { |
| 136 | char *un_d_boot0; /* primary bootstrap name */ |
| 137 | char *un_d_boot1; /* secondary bootstrap name */ |
| 138 | } un_b; |
| 139 | uint64_t un_d_pad; /* force 8 byte alignment */ |
| 140 | } d_un; |
| 141 | #define d_packname d_un.un_d_packname |
| 142 | #define d_boot0 d_un.un_b.un_d_boot0 |
| 143 | #define d_boot1 d_un.un_b.un_d_boot1 |
| 144 | |
| 145 | /* disk geometry: */ |
| 146 | uint32_t d_secsize; /* # of bytes per sector */ |
| 147 | uint32_t d_nsectors; /* # of data sectors per track */ |
| 148 | uint32_t d_ntracks; /* # of tracks per cylinder */ |
| 149 | uint32_t d_ncylinders; /* # of data cylinders per unit */ |
| 150 | uint32_t d_secpercyl; /* # of data sectors per cylinder */ |
| 151 | uint32_t d_secperunit; /* # of data sectors per unit */ |
| 152 | |
| 153 | /* |
| 154 | * Spares (bad sector replacements) below are not counted in |
| 155 | * d_nsectors or d_secpercyl. Spare sectors are assumed to |
| 156 | * be physical sectors which occupy space at the end of each |
| 157 | * track and/or cylinder. |
| 158 | */ |
| 159 | uint16_t d_sparespertrack; /* # of spare sectors per track */ |
| 160 | uint16_t d_sparespercyl; /* # of spare sectors per cylinder */ |
| 161 | /* |
| 162 | * Alternative cylinders include maintenance, replacement, |
| 163 | * configuration description areas, etc. |
| 164 | */ |
| 165 | uint32_t d_acylinders; /* # of alt. cylinders per unit */ |
| 166 | |
| 167 | /* hardware characteristics: */ |
| 168 | /* |
| 169 | * d_interleave, d_trackskew and d_cylskew describe perturbations |
| 170 | * in the media format used to compensate for a slow controller. |
| 171 | * Interleave is physical sector interleave, set up by the |
| 172 | * formatter or controller when formatting. When interleaving is |
| 173 | * in use, logically adjacent sectors are not physically |
| 174 | * contiguous, but instead are separated by some number of |
| 175 | * sectors. It is specified as the ratio of physical sectors |
| 176 | * traversed per logical sector. Thus an interleave of 1:1 |
| 177 | * implies contiguous layout, while 2:1 implies that logical |
| 178 | * sector 0 is separated by one sector from logical sector 1. |
| 179 | * d_trackskew is the offset of sector 0 on track N relative to |
| 180 | * sector 0 on track N-1 on the same cylinder. Finally, d_cylskew |
| 181 | * is the offset of sector 0 on cylinder N relative to sector 0 |
| 182 | * on cylinder N-1. |
| 183 | */ |
| 184 | uint16_t d_rpm; /* rotational speed */ |
| 185 | uint16_t d_interleave; /* hardware sector interleave */ |
| 186 | uint16_t d_trackskew; /* sector 0 skew, per track */ |
| 187 | uint16_t d_cylskew; /* sector 0 skew, per cylinder */ |
| 188 | uint32_t d_headswitch; /* head switch time, usec */ |
| 189 | uint32_t d_trkseek; /* track-to-track seek, usec */ |
| 190 | uint32_t d_flags; /* generic flags */ |
| 191 | #define NDDATA 5 |
| 192 | uint32_t d_drivedata[NDDATA]; /* drive-type specific information */ |
| 193 | #define NSPARE 5 |
| 194 | uint32_t d_spare[NSPARE]; /* reserved for future use */ |
| 195 | uint32_t d_magic2; /* the magic number (again) */ |
| 196 | uint16_t d_checksum; /* xor of data incl. partitions */ |
| 197 | |
| 198 | /* filesystem and partition information: */ |
| 199 | uint16_t d_npartitions; /* number of partitions in following */ |
| 200 | uint32_t d_bbsize; /* size of boot area at sn0, bytes */ |
| 201 | uint32_t d_sbsize; /* max size of fs superblock, bytes */ |
| 202 | struct partition d_partitions[MAXPARTITIONS]; |
| 203 | /* the partition table, actually may be more */ |
| 204 | }; |
| 205 | |
| 206 | #if defined(__HAVE_OLD_DISKLABEL) && !HAVE_NBTOOL_CONFIG_H |
| 207 | /* |
| 208 | * Same as above, but with OLDMAXPARTITIONS partitions. For use in |
| 209 | * the old DIOC* ioctl calls. |
| 210 | */ |
| 211 | struct olddisklabel { |
| 212 | uint32_t d_magic; |
| 213 | uint16_t d_type; |
| 214 | uint16_t d_subtype; |
| 215 | char d_typename[16]; |
| 216 | union { |
| 217 | char un_d_packname[16]; |
| 218 | struct { |
| 219 | char *un_d_boot0; |
| 220 | char *un_d_boot1; |
| 221 | } un_b; |
| 222 | } d_un; |
| 223 | uint32_t d_secsize; |
| 224 | uint32_t d_nsectors; |
| 225 | uint32_t d_ntracks; |
| 226 | uint32_t d_ncylinders; |
| 227 | uint32_t d_secpercyl; |
| 228 | uint32_t d_secperunit; |
| 229 | uint16_t d_sparespertrack; |
| 230 | uint16_t d_sparespercyl; |
| 231 | uint32_t d_acylinders; |
| 232 | uint16_t d_rpm; |
| 233 | uint16_t d_interleave; |
| 234 | uint16_t d_trackskew; |
| 235 | uint16_t d_cylskew; |
| 236 | uint32_t d_headswitch; |
| 237 | uint32_t d_trkseek; |
| 238 | uint32_t d_flags; |
| 239 | uint32_t d_drivedata[NDDATA]; |
| 240 | uint32_t d_spare[NSPARE]; |
| 241 | uint32_t d_magic2; |
| 242 | uint16_t d_checksum; |
| 243 | uint16_t d_npartitions; |
| 244 | uint32_t d_bbsize; |
| 245 | uint32_t d_sbsize; |
| 246 | struct opartition { |
| 247 | uint32_t p_size; |
| 248 | uint32_t p_offset; |
| 249 | union { |
| 250 | uint32_t fsize; |
| 251 | uint32_t cdsession; |
| 252 | } __partition_u2; |
| 253 | uint8_t p_fstype; |
| 254 | uint8_t p_frag; |
| 255 | union { |
| 256 | uint16_t cpg; |
| 257 | uint16_t sgs; |
| 258 | } __partition_u1; |
| 259 | } d_partitions[OLDMAXPARTITIONS]; |
| 260 | }; |
| 261 | #endif /* __HAVE_OLD_DISKLABEL */ |
| 262 | #else /* _LOCORE */ |
| 263 | /* |
| 264 | * offsets for asm boot files. |
| 265 | */ |
| 266 | .set d_secsize,40 |
| 267 | .set d_nsectors,44 |
| 268 | .set d_ntracks,48 |
| 269 | .set d_ncylinders,52 |
| 270 | .set d_secpercyl,56 |
| 271 | .set d_secperunit,60 |
| 272 | .set d_end_,148+(MAXPARTITIONS*16) |
| 273 | #endif /* _LOCORE */ |
| 274 | |
| 275 | /* |
| 276 | * We normally use C99 initialisers (just in case the lists below are out |
| 277 | * of sequence, or have gaps), but lint doesn't grok them. |
| 278 | * Maybe some host compilers don't either, but many have for quite some time. |
| 279 | */ |
| 280 | |
| 281 | #ifndef lint |
| 282 | #define ARRAY_INIT(element,value) [element]=value |
| 283 | #else |
| 284 | #define ARRAY_INIT(element,value) value |
| 285 | #endif |
| 286 | |
| 287 | /* Use pre-processor magic to get all the parameters one one line... */ |
| 288 | |
| 289 | /* d_type values: */ |
| 290 | #define DKTYPE_DEFN(x) \ |
| 291 | x(UNKNOWN, 0, "unknown") \ |
| 292 | x(SMD, 1, "SMD") /* SMD, XSMD; VAX hp/up */ \ |
| 293 | x(MSCP, 2, "MSCP") /* MSCP */ \ |
| 294 | x(DEC, 3, "old DEC") /* other DEC (rk, rl) */ \ |
| 295 | x(SCSI, 4, "SCSI") /* SCSI */ \ |
| 296 | x(ESDI, 5, "ESDI") /* ESDI interface */ \ |
| 297 | x(ST506, 6, "ST506") /* ST506 etc. */ \ |
| 298 | x(HPIB, 7, "HP-IB") /* CS/80 on HP-IB */ \ |
| 299 | x(HPFL, 8, "HP-FL") /* HP Fiber-link */ \ |
| 300 | x(TYPE_9, 9, "type 9") \ |
| 301 | x(FLOPPY, 10, "floppy") /* floppy */ \ |
| 302 | x(CCD, 11, "ccd") /* concatenated disk device */ \ |
| 303 | x(VND, 12, "vnd") /* uvnode pseudo-disk */ \ |
| 304 | x(ATAPI, 13, "ATAPI") /* ATAPI */ \ |
| 305 | x(RAID, 14, "RAID") /* RAIDframe */ \ |
| 306 | x(LD, 15, "ld") /* logical disk */ \ |
| 307 | x(JFS2, 16, "jfs") /* IBM JFS2 */ \ |
| 308 | x(CGD, 17, "cgd") /* cryptographic pseudo-disk */ \ |
| 309 | x(VINUM, 18, "vinum") /* vinum volume */ \ |
| 310 | x(FLASH, 19, "flash") /* flash memory devices */ \ |
| 311 | x(DM, 20, "dm") /* device-mapper pseudo-disk devices */\ |
| 312 | x(RUMPD, 21, "rumpd") /* rump virtual disk */ \ |
| 313 | x(MD, 22, "md") /* memory disk */ \ |
| 314 | |
| 315 | #ifndef _LOCORE |
| 316 | #define DKTYPE_NUMS(tag, number, name) __CONCAT(DKTYPE_,tag=number), |
| 317 | #ifndef DKTYPE_ENUMNAME |
| 318 | #define DKTYPE_ENUMNAME |
| 319 | #endif |
| 320 | enum DKTYPE_ENUMNAME { DKTYPE_DEFN(DKTYPE_NUMS) DKMAXTYPES }; |
| 321 | #undef DKTYPE_NUMS |
| 322 | #endif |
| 323 | |
| 324 | #ifdef DKTYPENAMES |
| 325 | #define DKTYPE_NAMES(tag, number, name) ARRAY_INIT(number,name), |
| 326 | static const char *const dktypenames[] = { DKTYPE_DEFN(DKTYPE_NAMES) NULL }; |
| 327 | #undef DKTYPE_NAMES |
| 328 | #endif |
| 329 | |
| 330 | /* |
| 331 | * Partition type names, numbers, label-names, fsck prog, and mount prog |
| 332 | */ |
| 333 | #define FSTYPE_DEFN(x) \ |
| 334 | x(UNUSED, 0, "unused", NULL, NULL) /* unused */ \ |
| 335 | x(SWAP, 1, "swap", NULL, NULL) /* swap */ \ |
| 336 | x(V6, 2, "Version 6", NULL, NULL) /* Sixth Edition */ \ |
| 337 | x(V7, 3, "Version 7", "v7fs", "v7fs") /* Seventh Edition */ \ |
| 338 | x(SYSV, 4, "System V", NULL, NULL) /* System V */ \ |
| 339 | x(V71K, 5, "4.1BSD", NULL, NULL) /* V7, 1K blocks (4.1, 2.9) */ \ |
| 340 | x(V8, 6, "Eighth Edition",NULL, NULL) /* Eighth Edition, 4K blocks */ \ |
| 341 | x(BSDFFS, 7, "4.2BSD", "ffs", "ffs") /* 4.2BSD fast file system */ \ |
| 342 | x(MSDOS, 8, "MSDOS", "msdos", "msdos") /* MSDOS file system */ \ |
| 343 | x(BSDLFS, 9, "4.4LFS", "lfs", "lfs") /* 4.4BSD log-structured FS */ \ |
| 344 | x(OTHER, 10, "unknown", NULL, NULL) /* in use, unknown/unsupported */\ |
| 345 | x(HPFS, 11, "HPFS", NULL, NULL) /* OS/2 high-performance FS */ \ |
| 346 | x(ISO9660, 12, "ISO9660", NULL, "cd9660")/* ISO 9660, normally CD-ROM */ \ |
| 347 | x(BOOT, 13, "boot", NULL, NULL) /* bootstrap code in partition */\ |
| 348 | x(ADOS, 14, "ADOS", NULL, "ados") /* AmigaDOS fast file system */ \ |
| 349 | x(HFS, 15, "HFS", NULL, NULL) /* Macintosh HFS */ \ |
| 350 | x(FILECORE,16, "FILECORE", NULL, "filecore")/* Acorn Filecore FS */ \ |
| 351 | x(EX2FS, 17, "Linux Ext2","ext2fs","ext2fs")/* Linux Extended 2 FS */ \ |
| 352 | x(NTFS, 18, "NTFS", NULL, "ntfs") /* Windows/NT file system */ \ |
| 353 | x(RAID, 19, "RAID", NULL, NULL) /* RAIDframe component */ \ |
| 354 | x(CCD, 20, "ccd", NULL, NULL) /* concatenated disk component */\ |
| 355 | x(JFS2, 21, "jfs", NULL, NULL) /* IBM JFS2 */ \ |
| 356 | x(APPLEUFS,22, "Apple UFS", "ffs", "ffs") /* Apple UFS */ \ |
| 357 | /* XXX this is not the same as FreeBSD. How to solve? */ \ |
| 358 | x(VINUM, 23, "vinum", NULL, NULL) /* Vinum */ \ |
| 359 | x(UDF, 24, "UDF", NULL, "udf") /* UDF */ \ |
| 360 | x(SYSVBFS, 25, "SysVBFS", NULL, "sysvbfs")/* System V boot file system */ \ |
| 361 | x(EFS, 26, "EFS", NULL, "efs") /* SGI's Extent Filesystem */ \ |
| 362 | x(NILFS, 27, "NiLFS", NULL, "nilfs") /* NTT's NiLFS(2) */ \ |
| 363 | x(CGD, 28, "cgd", NULL, NULL) /* Cryptographic disk */ \ |
| 364 | x(MINIXFS3,29, "MINIX FSv3", NULL, NULL) /* MINIX file system v3 */ |
| 365 | |
| 366 | |
| 367 | #ifndef _LOCORE |
| 368 | #define FS_TYPENUMS(tag, number, name, fsck, mount) __CONCAT(FS_,tag=number), |
| 369 | #ifndef FSTYPE_ENUMNAME |
| 370 | #define FSTYPE_ENUMNAME |
| 371 | #endif |
| 372 | enum FSTYPE_ENUMNAME { FSTYPE_DEFN(FS_TYPENUMS) FSMAXTYPES }; |
| 373 | #undef FS_TYPENUMS |
| 374 | #endif |
| 375 | |
| 376 | #ifdef FSTYPENAMES |
| 377 | #define FS_TYPENAMES(tag, number, name, fsck, mount) ARRAY_INIT(number,name), |
| 378 | static const char *const fstypenames[] = { FSTYPE_DEFN(FS_TYPENAMES) NULL }; |
| 379 | #undef FS_TYPENAMES |
| 380 | #endif |
| 381 | |
| 382 | #ifdef FSCKNAMES |
| 383 | /* These are the names MOUNT_XXX from <sys/mount.h> */ |
| 384 | #define FS_FSCKNAMES(tag, number, name, fsck, mount) ARRAY_INIT(number,fsck), |
| 385 | static const char *const fscknames[] = { FSTYPE_DEFN(FS_FSCKNAMES) NULL }; |
| 386 | #undef FS_FSCKNAMES |
| 387 | #define FSMAXNAMES FSMAXTYPES |
| 388 | #endif |
| 389 | |
| 390 | #ifdef MOUNTNAMES |
| 391 | /* These are the names MOUNT_XXX from <sys/mount.h> */ |
| 392 | #define FS_MOUNTNAMES(tag, number, name, fsck, mount) ARRAY_INIT(number,mount), |
| 393 | static const char *const mountnames[] = { FSTYPE_DEFN(FS_MOUNTNAMES) NULL }; |
| 394 | #undef FS_MOUNTNAMES |
| 395 | #define FSMAXMOUNTNAMES FSMAXTYPES |
| 396 | #endif |
| 397 | |
| 398 | /* |
| 399 | * flags shared by various drives: |
| 400 | */ |
| 401 | #define D_REMOVABLE 0x01 /* removable media */ |
| 402 | #define D_ECC 0x02 /* supports ECC */ |
| 403 | #define D_BADSECT 0x04 /* supports bad sector forw. */ |
| 404 | #define D_RAMDISK 0x08 /* disk emulator */ |
| 405 | #define D_CHAIN 0x10 /* can do back-back transfers */ |
| 406 | #define D_SCSI_MMC 0x20 /* SCSI MMC sessioned media */ |
| 407 | |
| 408 | /* |
| 409 | * Drive data for SMD. |
| 410 | */ |
| 411 | #define d_smdflags d_drivedata[0] |
| 412 | #define D_SSE 0x1 /* supports skip sectoring */ |
| 413 | #define d_mindist d_drivedata[1] |
| 414 | #define d_maxdist d_drivedata[2] |
| 415 | #define d_sdist d_drivedata[3] |
| 416 | |
| 417 | /* |
| 418 | * Drive data for ST506. |
| 419 | */ |
| 420 | #define d_precompcyl d_drivedata[0] |
| 421 | #define d_gap3 d_drivedata[1] /* used only when formatting */ |
| 422 | |
| 423 | /* |
| 424 | * Drive data for SCSI. |
| 425 | */ |
| 426 | #define d_blind d_drivedata[0] |
| 427 | |
| 428 | #ifndef _LOCORE |
| 429 | /* |
| 430 | * Structure used to perform a format or other raw operation, |
| 431 | * returning data and/or register values. Register identification |
| 432 | * and format are device- and driver-dependent. Currently unused. |
| 433 | */ |
| 434 | struct format_op { |
| 435 | char *df_buf; |
| 436 | int df_count; /* value-result */ |
| 437 | daddr_t df_startblk; |
| 438 | int df_reg[8]; /* result */ |
| 439 | }; |
| 440 | |
| 441 | #ifdef _KERNEL |
| 442 | /* |
| 443 | * Structure used internally to retrieve information about a partition |
| 444 | * on a disk. |
| 445 | */ |
| 446 | struct partinfo { |
| 447 | uint64_t pi_offset; |
| 448 | uint64_t pi_size; |
| 449 | uint32_t pi_secsize; |
| 450 | uint32_t pi_bsize; |
| 451 | uint8_t pi_fstype; |
| 452 | uint8_t pi_frag; |
| 453 | uint16_t pi_cpg; |
| 454 | uint32_t pi_fsize; |
| 455 | }; |
| 456 | |
| 457 | struct disk; |
| 458 | |
| 459 | int disk_read_sectors(void (*)(struct buf *), const struct disklabel *, |
| 460 | struct buf *, unsigned int, int); |
| 461 | void diskerr(const struct buf *, const char *, const char *, int, |
| 462 | int, const struct disklabel *); |
| 463 | u_int dkcksum(struct disklabel *); |
| 464 | u_int dkcksum_sized(struct disklabel *, size_t); |
| 465 | int setdisklabel(struct disklabel *, struct disklabel *, u_long, |
| 466 | struct cpu_disklabel *); |
| 467 | const char *readdisklabel(dev_t, void (*)(struct buf *), |
| 468 | struct disklabel *, struct cpu_disklabel *); |
| 469 | int writedisklabel(dev_t, void (*)(struct buf *), struct disklabel *, |
| 470 | struct cpu_disklabel *); |
| 471 | const char *convertdisklabel(struct disklabel *, void (*)(struct buf *), |
| 472 | struct buf *, uint32_t); |
| 473 | int bounds_check_with_label(struct disk *, struct buf *, int); |
| 474 | int bounds_check_with_mediasize(struct buf *, int, uint64_t); |
| 475 | const char *getfstypename(int); |
| 476 | #endif |
| 477 | #endif /* _LOCORE */ |
| 478 | |
| 479 | #if !defined(_KERNEL) && !defined(_LOCORE) |
| 480 | |
| 481 | #include <sys/cdefs.h> |
| 482 | |
| 483 | #endif |
| 484 | |
| 485 | #endif /* !_SYS_DISKLABEL_H_ */ |
| 486 | |