sys/sys/disklabel.h

   1 /*
   2  * Copyright (c) 2007 The DragonFly Project.  All rights reserved.
   3  *
   4  * This code is derived from software contributed to The DragonFly Project
   5  * by Matthew Dillon <dillon@backplane.com>
   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
  15  *    the documentation and/or other materials provided with the
  16  *    distribution.
  17  * 3. Neither the name of The DragonFly Project nor the names of its
  18  *    contributors may be used to endorse or promote products derived
  19  *    from this software without specific, prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  24  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
  25  * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  26  * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
  27  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  28  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  29  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  30  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  31  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  *
  34  * $DragonFly: src/sys/sys/disklabel.h,v 1.29 2007/06/19 06:07:51 dillon Exp $
  35  */
  36 /*
  37  * Disklabel abstraction
  38  */
  39
  40 #ifndef _SYS_DISKLABEL_H_
  41 #define _SYS_DISKLABEL_H_
  42
  43 #ifndef _SYS_TYPES_H_
  44 #include <sys/types.h>
  45 #endif
  46 #ifndef _SYS_UUID_H_
  47 #include <sys/uuid.h>
  48 #endif
  49
  50 struct disklabel32;
  51 struct disklabel64;
  52
  53 typedef union abstracted_disklabel {
  54         void                    *opaque;
  55         struct disklabel32      *lab32;
  56         struct disklabel64      *lab64;
  57 } disklabel_t;
  58
  59 struct cdev;
  60 struct diskslice;
  61 struct diskslices;
  62 struct disk_info;
  63 struct partinfo;
  64
  65 struct disklabel_ops {
  66         struct uuid type;       /* uuid specifies disklabel type */
  67         int labelsize;          /* size of disklabel in bytes */
  68
  69         const char *(*op_readdisklabel)
  70                     (struct cdev *, struct diskslice *, disklabel_t *,
  71                      struct disk_info *);
  72         int (*op_setdisklabel)
  73                     (disklabel_t, disklabel_t, struct diskslices *,
  74                      struct diskslice *, u_int32_t *);
  75         int (*op_writedisklabel)
  76                     (struct cdev *, struct diskslices *, struct diskslice *,
  77                      disklabel_t);
  78         disklabel_t (*op_clone_label)
  79                     (struct disk_info *, struct diskslice *);
  80         void (*op_adjust_label_reserved)
  81                     (struct diskslices *, int, struct diskslice *);
  82         int (*op_getpartbounds)
  83                     (struct diskslices *, disklabel_t, u_int32_t,
  84                      u_int64_t *, u_int64_t *);
  85         void (*op_loadpartinfo)
  86                     (disklabel_t, u_int32_t, struct partinfo *);
  87         u_int32_t (*op_getnumparts)
  88                     (disklabel_t);
  89         void (*op_makevirginlabel)
  90                     (disklabel_t, struct diskslices *,
  91                      struct diskslice *, struct disk_info *);
  92 };
  93
  94 typedef struct disklabel_ops    *disklabel_ops_t;
  95
  96 #endif /* !_SYS_DISKLABEL_H_ */
  97