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 (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved. 21 */ 22 23 #ifndef GRUB_ZFS_HEADER 24 #define GRUB_ZFS_HEADER 1 25 26 27 /* 28 * On-disk version number. 29 */ 30 #define SPA_VERSION 28ULL 31 32 /* 33 * The following are configuration names used in the nvlist describing a pool's 34 * configuration. 35 */ 36 #define ZPOOL_CONFIG_VERSION "version" 37 #define ZPOOL_CONFIG_POOL_NAME "name" 38 #define ZPOOL_CONFIG_POOL_STATE "state" 39 #define ZPOOL_CONFIG_POOL_TXG "txg" 40 #define ZPOOL_CONFIG_POOL_GUID "pool_guid" 41 #define ZPOOL_CONFIG_CREATE_TXG "create_txg" 42 #define ZPOOL_CONFIG_TOP_GUID "top_guid" 43 #define ZPOOL_CONFIG_VDEV_TREE "vdev_tree" 44 #define ZPOOL_CONFIG_TYPE "type" 45 #define ZPOOL_CONFIG_CHILDREN "children" 46 #define ZPOOL_CONFIG_ID "id" 47 #define ZPOOL_CONFIG_GUID "guid" 48 #define ZPOOL_CONFIG_PATH "path" 49 #define ZPOOL_CONFIG_DEVID "devid" 50 #define ZPOOL_CONFIG_METASLAB_ARRAY "metaslab_array" 51 #define ZPOOL_CONFIG_METASLAB_SHIFT "metaslab_shift" 52 #define ZPOOL_CONFIG_ASHIFT "ashift" 53 #define ZPOOL_CONFIG_ASIZE "asize" 54 #define ZPOOL_CONFIG_DTL "DTL" 55 #define ZPOOL_CONFIG_STATS "stats" 56 #define ZPOOL_CONFIG_WHOLE_DISK "whole_disk" 57 #define ZPOOL_CONFIG_ERRCOUNT "error_count" 58 #define ZPOOL_CONFIG_NOT_PRESENT "not_present" 59 #define ZPOOL_CONFIG_SPARES "spares" 60 #define ZPOOL_CONFIG_IS_SPARE "is_spare" 61 #define ZPOOL_CONFIG_NPARITY "nparity" 62 #define ZPOOL_CONFIG_PHYS_PATH "phys_path" 63 #define ZPOOL_CONFIG_L2CACHE "l2cache" 64 #define ZPOOL_CONFIG_HOLE_ARRAY "hole_array" 65 #define ZPOOL_CONFIG_VDEV_CHILDREN "vdev_children" 66 #define ZPOOL_CONFIG_IS_HOLE "is_hole" 67 #define ZPOOL_CONFIG_DDT_HISTOGRAM "ddt_histogram" 68 #define ZPOOL_CONFIG_DDT_OBJ_STATS "ddt_object_stats" 69 #define ZPOOL_CONFIG_DDT_STATS "ddt_stats" 70 /* 71 * The persistent vdev state is stored as separate values rather than a single 72 * 'vdev_state' entry. This is because a device can be in multiple states, such 73 * as offline and degraded. 74 */ 75 #define ZPOOL_CONFIG_OFFLINE "offline" 76 #define ZPOOL_CONFIG_FAULTED "faulted" 77 #define ZPOOL_CONFIG_DEGRADED "degraded" 78 #define ZPOOL_CONFIG_REMOVED "removed" 79 80 #define VDEV_TYPE_ROOT "root" 81 #define VDEV_TYPE_MIRROR "mirror" 82 #define VDEV_TYPE_REPLACING "replacing" 83 #define VDEV_TYPE_RAIDZ "raidz" 84 #define VDEV_TYPE_DISK "disk" 85 #define VDEV_TYPE_FILE "file" 86 #define VDEV_TYPE_MISSING "missing" 87 #define VDEV_TYPE_HOLE "hole" 88 #define VDEV_TYPE_SPARE "spare" 89 #define VDEV_TYPE_L2CACHE "l2cache" 90 91 /* 92 * pool state. The following states are written to disk as part of the normal 93 * SPA lifecycle: ACTIVE, EXPORTED, DESTROYED, SPARE, L2CACHE. The remaining 94 * states are software abstractions used at various levels to communicate pool 95 * state. 96 */ 97 typedef enum pool_state { 98 POOL_STATE_ACTIVE = 0, /* In active use */ 99 POOL_STATE_EXPORTED, /* Explicitly exported */ 100 POOL_STATE_DESTROYED, /* Explicitly destroyed */ 101 POOL_STATE_SPARE, /* Reserved for hot spare use */ 102 POOL_STATE_L2CACHE, /* Level 2 ARC device */ 103 POOL_STATE_UNINITIALIZED, /* Internal spa_t state */ 104 POOL_STATE_UNAVAIL, /* Internal libzfs state */ 105 POOL_STATE_POTENTIALLY_ACTIVE /* Internal libzfs state */ 106 } pool_state_t; 107 108 struct zfs_data; 109 110 int zfs_fetch_nvlist(device_t dev, char **nvlist); 111 int zfs_getmdnobj(device_t dev, const char *fsfilename, 112 uint64_t *mdnobj); 113 114 char *zfs_nvlist_lookup_string(char *nvlist, char *name); 115 char *zfs_nvlist_lookup_nvlist(char *nvlist, char *name); 116 int zfs_nvlist_lookup_uint64(char *nvlist, char *name, 117 uint64_t *out); 118 char *zfs_nvlist_lookup_nvlist_array(char *nvlist, char *name, 119 size_t index); 120 int zfs_nvlist_lookup_nvlist_array_get_nelm(char *nvlist, char *name); 121 122 #endif /* ! GRUB_ZFS_HEADER */ 123