1b1b8ab34Slling /* 2b1b8ab34Slling * GRUB -- GRand Unified Bootloader 3b1b8ab34Slling * Copyright (C) 1999,2000,2001,2002,2003,2004 Free Software Foundation, Inc. 4b1b8ab34Slling * 5b1b8ab34Slling * This program is free software; you can redistribute it and/or modify 6b1b8ab34Slling * it under the terms of the GNU General Public License as published by 7b1b8ab34Slling * the Free Software Foundation; either version 2 of the License, or 8b1b8ab34Slling * (at your option) any later version. 9b1b8ab34Slling * 10b1b8ab34Slling * This program is distributed in the hope that it will be useful, 11b1b8ab34Slling * but WITHOUT ANY WARRANTY; without even the implied warranty of 12b1b8ab34Slling * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13b1b8ab34Slling * GNU General Public License for more details. 14b1b8ab34Slling * 15b1b8ab34Slling * You should have received a copy of the GNU General Public License 16b1b8ab34Slling * along with this program; if not, write to the Free Software 17b1b8ab34Slling * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 18b1b8ab34Slling */ 19ad135b5dSChristopher Siden 20b1b8ab34Slling /* 216e1f5caaSNeil Perrin * Copyright 2010 Sun Microsystems, Inc. All rights reserved. 22b1b8ab34Slling * Use is subject to license terms. 23b1b8ab34Slling */ 24ad135b5dSChristopher Siden 25ad135b5dSChristopher Siden /* 26ad135b5dSChristopher Siden * Copyright (c) 2012 by Delphix. All rights reserved. 27a6f561b4SSašo Kiselkov * Copyright (c) 2013 by Saso Kiselkov. All rights reserved. 28ad135b5dSChristopher Siden */ 29ad135b5dSChristopher Siden 30b1b8ab34Slling #ifndef _FSYS_ZFS_H 31b1b8ab34Slling #define _FSYS_ZFS_H 32b1b8ab34Slling 33b1b8ab34Slling #ifdef FSYS_ZFS 34b1b8ab34Slling 352dd5848fSMark Johnson #ifndef FSIMAGE 36b1b8ab34Slling typedef unsigned long long uint64_t; 37b1b8ab34Slling typedef unsigned int uint32_t; 38b1b8ab34Slling typedef unsigned short uint16_t; 39b1b8ab34Slling typedef unsigned char uint8_t; 40b1b8ab34Slling typedef unsigned char uchar_t; 41b1b8ab34Slling 42b1b8ab34Slling #if defined(_LP64) || defined(_I32LPx) 43b1b8ab34Slling typedef unsigned long size_t; 44b1b8ab34Slling #else 45b1b8ab34Slling typedef unsigned int size_t; 46b1b8ab34Slling #endif 472dd5848fSMark Johnson #else 482dd5848fSMark Johnson #include "fsi_zfs.h" 492dd5848fSMark Johnson #endif /* !FSIMAGE */ 50b1b8ab34Slling 51b1b8ab34Slling #include <zfs-include/zfs.h> 52b1b8ab34Slling #include <zfs-include/dmu.h> 53b1b8ab34Slling #include <zfs-include/spa.h> 54b1b8ab34Slling #include <zfs-include/zio.h> 55b1b8ab34Slling #include <zfs-include/zio_checksum.h> 56b1b8ab34Slling #include <zfs-include/vdev_impl.h> 57b1b8ab34Slling #include <zfs-include/zap_impl.h> 58b1b8ab34Slling #include <zfs-include/zap_leaf.h> 59b1b8ab34Slling #include <zfs-include/uberblock_impl.h> 60b1b8ab34Slling #include <zfs-include/dnode.h> 61b1b8ab34Slling #include <zfs-include/dsl_dir.h> 62b1b8ab34Slling #include <zfs-include/zfs_acl.h> 63b1b8ab34Slling #include <zfs-include/zfs_znode.h> 64b1b8ab34Slling #include <zfs-include/dsl_dataset.h> 65b1b8ab34Slling #include <zfs-include/zil.h> 66b1b8ab34Slling #include <zfs-include/dmu_objset.h> 670a586ceaSMark Shellenbaum #include <zfs-include/sa_impl.h> 68b1b8ab34Slling 69b1b8ab34Slling /* 70b1b8ab34Slling * Global Memory addresses to store MOS and DNODE data 71b1b8ab34Slling */ 72843e1988Sjohnlev #define MOS ((dnode_phys_t *)\ 73bc896b5aSjohnlev (RAW_ADDR((mbi.mem_upper << 10) + 0x100000) - ZFS_SCRATCH_SIZE)) 74ae8180dbSlling #define DNODE (MOS+1) /* move sizeof(dnode_phys_t) bytes */ 75ae8180dbSlling #define ZFS_SCRATCH ((char *)(DNODE+1)) 76b1b8ab34Slling 77b1b8ab34Slling /* 78b1b8ab34Slling * Verify dnode type. 79b1b8ab34Slling * Can only be used in functions returning non-0 for failure. 80b1b8ab34Slling */ 81b1b8ab34Slling #define VERIFY_DN_TYPE(dnp, type) \ 82b1b8ab34Slling if (type && (dnp)->dn_type != type) { \ 83b1b8ab34Slling return (ERR_FSYS_CORRUPT); \ 84b1b8ab34Slling } 85b1b8ab34Slling 86b1b8ab34Slling /* 87b1b8ab34Slling * Verify object set type. 88b1b8ab34Slling * Can only be used in functions returning 0 for failure. 89b1b8ab34Slling */ 90b1b8ab34Slling #define VERIFY_OS_TYPE(osp, type) \ 91b1b8ab34Slling if (type && (osp)->os_type != type) { \ 92b1b8ab34Slling errnum = ERR_FSYS_CORRUPT; \ 93b1b8ab34Slling return (0); \ 94b1b8ab34Slling } 95b1b8ab34Slling 96b1b8ab34Slling #define ZPOOL_PROP_BOOTFS "bootfs" 97b1b8ab34Slling 98b1b8ab34Slling /* General macros */ 99b1b8ab34Slling #define BSWAP_8(x) ((x) & 0xff) 100b1b8ab34Slling #define BSWAP_16(x) ((BSWAP_8(x) << 8) | BSWAP_8((x) >> 8)) 101b1b8ab34Slling #define BSWAP_32(x) ((BSWAP_16(x) << 16) | BSWAP_16((x) >> 16)) 102b1b8ab34Slling #define BSWAP_64(x) ((BSWAP_32(x) << 32) | BSWAP_32((x) >> 32)) 103b1b8ab34Slling #define P2ROUNDUP(x, align) (-(-(x) & -(align))) 104b1b8ab34Slling 105b1b8ab34Slling typedef struct uberblock uberblock_t; 106b1b8ab34Slling 107b1b8ab34Slling /* 108b1b8ab34Slling * Macros to get fields in a bp or DVA. 109b1b8ab34Slling */ 110b1b8ab34Slling #define P2PHASE(x, align) ((x) & ((align) - 1)) 111b1b8ab34Slling #define DVA_OFFSET_TO_PHYS_SECTOR(offset) \ 112b1b8ab34Slling ((offset + VDEV_LABEL_START_SIZE) >> SPA_MINBLOCKSHIFT) 113b1b8ab34Slling 114e23347b1SEric Taylor /* 115e23347b1SEric Taylor * return x rounded down to an align boundary 116e23347b1SEric Taylor * eg, P2ALIGN(1200, 1024) == 1024 (1*align) 117e23347b1SEric Taylor * eg, P2ALIGN(1024, 1024) == 1024 (1*align) 118e23347b1SEric Taylor * eg, P2ALIGN(0x1234, 0x100) == 0x1200 (0x12*align) 119e23347b1SEric Taylor * eg, P2ALIGN(0x5600, 0x100) == 0x5600 (0x56*align) 120e23347b1SEric Taylor */ 121e23347b1SEric Taylor #define P2ALIGN(x, align) ((x) & -(align)) 122e23347b1SEric Taylor 123b1b8ab34Slling /* 124b1b8ab34Slling * For nvlist manipulation. (from nvpair.h) 125b1b8ab34Slling */ 126b1b8ab34Slling #define NV_ENCODE_NATIVE 0 127b1b8ab34Slling #define NV_ENCODE_XDR 1 128b1b8ab34Slling #define HOST_ENDIAN 1 /* for x86 machine */ 129ad135b5dSChristopher Siden typedef enum { 130ad135b5dSChristopher Siden DATA_TYPE_UNKNOWN = 0, 131ad135b5dSChristopher Siden DATA_TYPE_BOOLEAN, 132ad135b5dSChristopher Siden DATA_TYPE_BYTE, 133ad135b5dSChristopher Siden DATA_TYPE_INT16, 134ad135b5dSChristopher Siden DATA_TYPE_UINT16, 135ad135b5dSChristopher Siden DATA_TYPE_INT32, 136ad135b5dSChristopher Siden DATA_TYPE_UINT32, 137ad135b5dSChristopher Siden DATA_TYPE_INT64, 138ad135b5dSChristopher Siden DATA_TYPE_UINT64, 139ad135b5dSChristopher Siden DATA_TYPE_STRING, 140ad135b5dSChristopher Siden DATA_TYPE_BYTE_ARRAY, 141ad135b5dSChristopher Siden DATA_TYPE_INT16_ARRAY, 142ad135b5dSChristopher Siden DATA_TYPE_UINT16_ARRAY, 143ad135b5dSChristopher Siden DATA_TYPE_INT32_ARRAY, 144ad135b5dSChristopher Siden DATA_TYPE_UINT32_ARRAY, 145ad135b5dSChristopher Siden DATA_TYPE_INT64_ARRAY, 146ad135b5dSChristopher Siden DATA_TYPE_UINT64_ARRAY, 147ad135b5dSChristopher Siden DATA_TYPE_STRING_ARRAY, 148ad135b5dSChristopher Siden DATA_TYPE_HRTIME, 149ad135b5dSChristopher Siden DATA_TYPE_NVLIST, 150ad135b5dSChristopher Siden DATA_TYPE_NVLIST_ARRAY, 151ad135b5dSChristopher Siden DATA_TYPE_BOOLEAN_VALUE, 152ad135b5dSChristopher Siden DATA_TYPE_INT8, 153ad135b5dSChristopher Siden DATA_TYPE_UINT8, 154ad135b5dSChristopher Siden DATA_TYPE_BOOLEAN_ARRAY, 155ad135b5dSChristopher Siden DATA_TYPE_INT8_ARRAY, 156ad135b5dSChristopher Siden DATA_TYPE_UINT8_ARRAY, 157ad135b5dSChristopher Siden DATA_TYPE_DOUBLE 158ad135b5dSChristopher Siden } data_type_t; 159b1b8ab34Slling 160b1b8ab34Slling /* 161b1b8ab34Slling * Decompression Entry - lzjb 162b1b8ab34Slling */ 163b1b8ab34Slling #ifndef NBBY 164b1b8ab34Slling #define NBBY 8 165b1b8ab34Slling #endif 166b1b8ab34Slling 167b1b8ab34Slling typedef int zfs_decomp_func_t(void *s_start, void *d_start, size_t s_len, 168b1b8ab34Slling size_t d_len); 169b1b8ab34Slling typedef struct decomp_entry { 170b1b8ab34Slling char *name; 171b1b8ab34Slling zfs_decomp_func_t *decomp_func; 172b1b8ab34Slling } decomp_entry_t; 173b1b8ab34Slling 174b1b8ab34Slling /* 175b1b8ab34Slling * FAT ZAP data structures 176b1b8ab34Slling */ 177b1b8ab34Slling #define ZFS_CRC64_POLY 0xC96C5795D7870F42ULL /* ECMA-182, reflected form */ 178b1b8ab34Slling #define ZAP_HASH_IDX(hash, n) (((n) == 0) ? 0 : ((hash) >> (64 - (n)))) 179b1b8ab34Slling #define CHAIN_END 0xffff /* end of the chunk chain */ 180b1b8ab34Slling 181b1b8ab34Slling /* 182b1b8ab34Slling * The amount of space within the chunk available for the array is: 183b1b8ab34Slling * chunk size - space for type (1) - space for next pointer (2) 184b1b8ab34Slling */ 185b1b8ab34Slling #define ZAP_LEAF_ARRAY_BYTES (ZAP_LEAF_CHUNKSIZE - 3) 186b1b8ab34Slling 187b1b8ab34Slling #define ZAP_LEAF_HASH_SHIFT(bs) (bs - 5) 188b1b8ab34Slling #define ZAP_LEAF_HASH_NUMENTRIES(bs) (1 << ZAP_LEAF_HASH_SHIFT(bs)) 189b1b8ab34Slling #define LEAF_HASH(bs, h) \ 190b1b8ab34Slling ((ZAP_LEAF_HASH_NUMENTRIES(bs)-1) & \ 191b1b8ab34Slling ((h) >> (64 - ZAP_LEAF_HASH_SHIFT(bs)-l->l_hdr.lh_prefix_len))) 192b1b8ab34Slling 193b1b8ab34Slling /* 194b1b8ab34Slling * The amount of space available for chunks is: 195b1b8ab34Slling * block size shift - hash entry size (2) * number of hash 196b1b8ab34Slling * entries - header space (2*chunksize) 197b1b8ab34Slling */ 198b1b8ab34Slling #define ZAP_LEAF_NUMCHUNKS(bs) \ 199b1b8ab34Slling (((1<<bs) - 2*ZAP_LEAF_HASH_NUMENTRIES(bs)) / \ 200b1b8ab34Slling ZAP_LEAF_CHUNKSIZE - 2) 201b1b8ab34Slling 202b1b8ab34Slling /* 203b1b8ab34Slling * The chunks start immediately after the hash table. The end of the 204b1b8ab34Slling * hash table is at l_hash + HASH_NUMENTRIES, which we simply cast to a 205b1b8ab34Slling * chunk_t. 206b1b8ab34Slling */ 207b1b8ab34Slling #define ZAP_LEAF_CHUNK(l, bs, idx) \ 208b1b8ab34Slling ((zap_leaf_chunk_t *)(l->l_hash + ZAP_LEAF_HASH_NUMENTRIES(bs)))[idx] 209b1b8ab34Slling #define ZAP_LEAF_ENTRY(l, bs, idx) (&ZAP_LEAF_CHUNK(l, bs, idx).l_entry) 210b1b8ab34Slling 211b1b8ab34Slling extern void fletcher_2_native(const void *, uint64_t, zio_cksum_t *); 212b1b8ab34Slling extern void fletcher_2_byteswap(const void *, uint64_t, zio_cksum_t *); 213b1b8ab34Slling extern void fletcher_4_native(const void *, uint64_t, zio_cksum_t *); 214b1b8ab34Slling extern void fletcher_4_byteswap(const void *, uint64_t, zio_cksum_t *); 215b1b8ab34Slling extern void zio_checksum_SHA256(const void *, uint64_t, zio_cksum_t *); 216*45818ee1SMatthew Ahrens extern void zio_checksum_SHA512(const void *, uint64_t, zio_cksum_t *); 217b1b8ab34Slling extern int lzjb_decompress(void *, void *, size_t, size_t); 218a6f561b4SSašo Kiselkov extern int lz4_decompress(void *, void *, size_t, size_t); 219b1b8ab34Slling 220b1b8ab34Slling #endif /* FSYS_ZFS */ 221b1b8ab34Slling 222b1b8ab34Slling #endif /* !_FSYS_ZFS_H */ 223