1 /* 2 * GRUB -- GRand Unified Bootloader 3 * Copyright (C) 1999,2000,2001,2002,2003,2004 Free Software Foundation, Inc. 4 * 5 * SPDX-License-Identifier: GPL-2.0+ 6 */ 7 /* 8 * Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved. 9 */ 10 11 #ifndef GRUB_ZFS_HEADER 12 #define GRUB_ZFS_HEADER 1 13 14 15 /* 16 * On-disk version number. 17 */ 18 #define SPA_VERSION 28ULL 19 20 /* 21 * The following are configuration names used in the nvlist describing a pool's 22 * configuration. 23 */ 24 #define ZPOOL_CONFIG_VERSION "version" 25 #define ZPOOL_CONFIG_POOL_NAME "name" 26 #define ZPOOL_CONFIG_POOL_STATE "state" 27 #define ZPOOL_CONFIG_POOL_TXG "txg" 28 #define ZPOOL_CONFIG_POOL_GUID "pool_guid" 29 #define ZPOOL_CONFIG_CREATE_TXG "create_txg" 30 #define ZPOOL_CONFIG_TOP_GUID "top_guid" 31 #define ZPOOL_CONFIG_VDEV_TREE "vdev_tree" 32 #define ZPOOL_CONFIG_TYPE "type" 33 #define ZPOOL_CONFIG_CHILDREN "children" 34 #define ZPOOL_CONFIG_ID "id" 35 #define ZPOOL_CONFIG_GUID "guid" 36 #define ZPOOL_CONFIG_PATH "path" 37 #define ZPOOL_CONFIG_DEVID "devid" 38 #define ZPOOL_CONFIG_METASLAB_ARRAY "metaslab_array" 39 #define ZPOOL_CONFIG_METASLAB_SHIFT "metaslab_shift" 40 #define ZPOOL_CONFIG_ASHIFT "ashift" 41 #define ZPOOL_CONFIG_ASIZE "asize" 42 #define ZPOOL_CONFIG_DTL "DTL" 43 #define ZPOOL_CONFIG_STATS "stats" 44 #define ZPOOL_CONFIG_WHOLE_DISK "whole_disk" 45 #define ZPOOL_CONFIG_ERRCOUNT "error_count" 46 #define ZPOOL_CONFIG_NOT_PRESENT "not_present" 47 #define ZPOOL_CONFIG_SPARES "spares" 48 #define ZPOOL_CONFIG_IS_SPARE "is_spare" 49 #define ZPOOL_CONFIG_NPARITY "nparity" 50 #define ZPOOL_CONFIG_PHYS_PATH "phys_path" 51 #define ZPOOL_CONFIG_L2CACHE "l2cache" 52 #define ZPOOL_CONFIG_HOLE_ARRAY "hole_array" 53 #define ZPOOL_CONFIG_VDEV_CHILDREN "vdev_children" 54 #define ZPOOL_CONFIG_IS_HOLE "is_hole" 55 #define ZPOOL_CONFIG_DDT_HISTOGRAM "ddt_histogram" 56 #define ZPOOL_CONFIG_DDT_OBJ_STATS "ddt_object_stats" 57 #define ZPOOL_CONFIG_DDT_STATS "ddt_stats" 58 /* 59 * The persistent vdev state is stored as separate values rather than a single 60 * 'vdev_state' entry. This is because a device can be in multiple states, such 61 * as offline and degraded. 62 */ 63 #define ZPOOL_CONFIG_OFFLINE "offline" 64 #define ZPOOL_CONFIG_FAULTED "faulted" 65 #define ZPOOL_CONFIG_DEGRADED "degraded" 66 #define ZPOOL_CONFIG_REMOVED "removed" 67 68 #define VDEV_TYPE_ROOT "root" 69 #define VDEV_TYPE_MIRROR "mirror" 70 #define VDEV_TYPE_REPLACING "replacing" 71 #define VDEV_TYPE_RAIDZ "raidz" 72 #define VDEV_TYPE_DISK "disk" 73 #define VDEV_TYPE_FILE "file" 74 #define VDEV_TYPE_MISSING "missing" 75 #define VDEV_TYPE_HOLE "hole" 76 #define VDEV_TYPE_SPARE "spare" 77 #define VDEV_TYPE_L2CACHE "l2cache" 78 79 /* 80 * pool state. The following states are written to disk as part of the normal 81 * SPA lifecycle: ACTIVE, EXPORTED, DESTROYED, SPARE, L2CACHE. The remaining 82 * states are software abstractions used at various levels to communicate pool 83 * state. 84 */ 85 typedef enum pool_state { 86 POOL_STATE_ACTIVE = 0, /* In active use */ 87 POOL_STATE_EXPORTED, /* Explicitly exported */ 88 POOL_STATE_DESTROYED, /* Explicitly destroyed */ 89 POOL_STATE_SPARE, /* Reserved for hot spare use */ 90 POOL_STATE_L2CACHE, /* Level 2 ARC device */ 91 POOL_STATE_UNINITIALIZED, /* Internal spa_t state */ 92 POOL_STATE_UNAVAIL, /* Internal libzfs state */ 93 POOL_STATE_POTENTIALLY_ACTIVE /* Internal libzfs state */ 94 } pool_state_t; 95 96 struct zfs_data; 97 98 int zfs_fetch_nvlist(device_t dev, char **nvlist); 99 int zfs_getmdnobj(device_t dev, const char *fsfilename, 100 uint64_t *mdnobj); 101 102 char *zfs_nvlist_lookup_string(char *nvlist, char *name); 103 char *zfs_nvlist_lookup_nvlist(char *nvlist, char *name); 104 int zfs_nvlist_lookup_uint64(char *nvlist, char *name, 105 uint64_t *out); 106 char *zfs_nvlist_lookup_nvlist_array(char *nvlist, char *name, 107 size_t index); 108 int zfs_nvlist_lookup_nvlist_array_get_nelm(char *nvlist, char *name); 109 110 #endif /* ! GRUB_ZFS_HEADER */ 111