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