include/zfs/dmu.h

   1 /*
   2  *  GRUB  --  GRand Unified Bootloader
   3  *  Copyright (C) 1999,2000,2001,2002,2003,2004  Free Software Foundation, Inc.
   4  *
   5  *  This program is free software; you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation; either version 2 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with this program; if not, write to the Free Software
  17  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18  */
  19 /*
  20  * Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
  21  * Use is subject to license terms.
  22  */
  23
  24 #ifndef _SYS_DMU_H
  25 #define _SYS_DMU_H
  26
  27 /*
  28  * This file describes the interface that the DMU provides for its
  29  * consumers.
  30  *
  31  * The DMU also interacts with the SPA.  That interface is described in
  32  * dmu_spa.h.
  33  */
  34 typedef enum dmu_object_type {
  35         DMU_OT_NONE,
  36         /* general: */
  37         DMU_OT_OBJECT_DIRECTORY,        /* ZAP */
  38         DMU_OT_OBJECT_ARRAY,            /* UINT64 */
  39         DMU_OT_PACKED_NVLIST,           /* UINT8 (XDR by nvlist_pack/unpack) */
  40         DMU_OT_PACKED_NVLIST_SIZE,      /* UINT64 */
  41         DMU_OT_BPLIST,                  /* UINT64 */
  42         DMU_OT_BPLIST_HDR,              /* UINT64 */
  43         /* spa: */
  44         DMU_OT_SPACE_MAP_HEADER,        /* UINT64 */
  45         DMU_OT_SPACE_MAP,               /* UINT64 */
  46         /* zil: */
  47         DMU_OT_INTENT_LOG,              /* UINT64 */
  48         /* dmu: */
  49         DMU_OT_DNODE,                   /* DNODE */
  50         DMU_OT_OBJSET,                  /* OBJSET */
  51         /* dsl: */
  52         DMU_OT_DSL_DIR,                 /* UINT64 */
  53         DMU_OT_DSL_DIR_CHILD_MAP,       /* ZAP */
  54         DMU_OT_DSL_DS_SNAP_MAP,         /* ZAP */
  55         DMU_OT_DSL_PROPS,               /* ZAP */
  56         DMU_OT_DSL_DATASET,             /* UINT64 */
  57         /* zpl: */
  58         DMU_OT_ZNODE,                   /* ZNODE */
  59         DMU_OT_OLDACL,                  /* OLD ACL */
  60         DMU_OT_PLAIN_FILE_CONTENTS,     /* UINT8 */
  61         DMU_OT_DIRECTORY_CONTENTS,      /* ZAP */
  62         DMU_OT_MASTER_NODE,             /* ZAP */
  63         DMU_OT_UNLINKED_SET,            /* ZAP */
  64         /* zvol: */
  65         DMU_OT_ZVOL,                    /* UINT8 */
  66         DMU_OT_ZVOL_PROP,               /* ZAP */
  67         /* other; for testing only! */
  68         DMU_OT_PLAIN_OTHER,             /* UINT8 */
  69         DMU_OT_UINT64_OTHER,            /* UINT64 */
  70         DMU_OT_ZAP_OTHER,               /* ZAP */
  71         /* new object types: */
  72         DMU_OT_ERROR_LOG,               /* ZAP */
  73         DMU_OT_SPA_HISTORY,             /* UINT8 */
  74         DMU_OT_SPA_HISTORY_OFFSETS,     /* spa_his_phys_t */
  75         DMU_OT_POOL_PROPS,              /* ZAP */
  76         DMU_OT_DSL_PERMS,               /* ZAP */
  77         DMU_OT_ACL,                     /* ACL */
  78         DMU_OT_SYSACL,                  /* SYSACL */
  79         DMU_OT_FUID,                    /* FUID table (Packed NVLIST UINT8) */
  80         DMU_OT_FUID_SIZE,               /* FUID table size UINT64 */
  81         DMU_OT_NEXT_CLONES,             /* ZAP */
  82         DMU_OT_SCRUB_QUEUE,             /* ZAP */
  83         DMU_OT_USERGROUP_USED,          /* ZAP */
  84         DMU_OT_USERGROUP_QUOTA,         /* ZAP */
  85         DMU_OT_USERREFS,                /* ZAP */
  86         DMU_OT_DDT_ZAP,                 /* ZAP */
  87         DMU_OT_DDT_STATS,               /* ZAP */
  88         DMU_OT_SA,                      /* System attr */
  89         DMU_OT_SA_MASTER_NODE,          /* ZAP */
  90         DMU_OT_SA_ATTR_REGISTRATION,    /* ZAP */
  91         DMU_OT_SA_ATTR_LAYOUTS,         /* ZAP */
  92         DMU_OT_NUMTYPES
  93 } dmu_object_type_t;
  94
  95 typedef enum dmu_objset_type {
  96         DMU_OST_NONE,
  97         DMU_OST_META,
  98         DMU_OST_ZFS,
  99         DMU_OST_ZVOL,
 100         DMU_OST_OTHER,                  /* For testing only! */
 101         DMU_OST_ANY,                    /* Be careful! */
 102         DMU_OST_NUMTYPES
 103 } dmu_objset_type_t;
 104
 105 /*
 106  * The names of zap entries in the DIRECTORY_OBJECT of the MOS.
 107  */
 108 #define DMU_POOL_DIRECTORY_OBJECT       1
 109 #define DMU_POOL_CONFIG                 "config"
 110 #define DMU_POOL_ROOT_DATASET           "root_dataset"
 111 #define DMU_POOL_SYNC_BPLIST            "sync_bplist"
 112 #define DMU_POOL_ERRLOG_SCRUB           "errlog_scrub"
 113 #define DMU_POOL_ERRLOG_LAST            "errlog_last"
 114 #define DMU_POOL_SPARES                 "spares"
 115 #define DMU_POOL_DEFLATE                "deflate"
 116 #define DMU_POOL_HISTORY                "history"
 117 #define DMU_POOL_PROPS                  "pool_props"
 118 #define DMU_POOL_L2CACHE                "l2cache"
 119
 120 #endif  /* _SYS_DMU_H */