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--- old/usr/src/grub/grub-0.97/stage2/fsys_zfs.h
+++ new/usr/src/grub/grub-0.97/stage2/fsys_zfs.h
1 1 /*
2 2 * GRUB -- GRand Unified Bootloader
3 3 * Copyright (C) 1999,2000,2001,2002,2003,2004 Free Software Foundation, Inc.
4 4 *
5 5 * This program is free software; you can redistribute it and/or modify
6 6 * it under the terms of the GNU General Public License as published by
7 7 * the Free Software Foundation; either version 2 of the License, or
8 8 * (at your option) any later version.
9 9 *
10 10 * This program is distributed in the hope that it will be useful,
11 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 13 * GNU General Public License for more details.
14 14 *
15 15 * You should have received a copy of the GNU General Public License
16 16 * along with this program; if not, write to the Free Software
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17 17 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18 18 */
19 19
20 20 /*
21 21 * Copyright 2010 Sun Microsystems, Inc. All rights reserved.
22 22 * Use is subject to license terms.
23 23 */
24 24
25 25 /*
26 26 * Copyright (c) 2012 by Delphix. All rights reserved.
27 + * Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
27 28 */
28 29
29 30 #ifndef _FSYS_ZFS_H
30 31 #define _FSYS_ZFS_H
31 32
32 33 #ifdef FSYS_ZFS
33 34
34 35 #ifndef FSIMAGE
35 36 typedef unsigned long long uint64_t;
36 37 typedef unsigned int uint32_t;
37 38 typedef unsigned short uint16_t;
38 39 typedef unsigned char uint8_t;
39 40 typedef unsigned char uchar_t;
40 41
41 42 #if defined(_LP64) || defined(_I32LPx)
42 43 typedef unsigned long size_t;
43 44 #else
44 45 typedef unsigned int size_t;
45 46 #endif
46 47 #else
47 48 #include "fsi_zfs.h"
48 49 #endif /* !FSIMAGE */
49 50
50 51 #include <zfs-include/zfs.h>
51 52 #include <zfs-include/dmu.h>
52 53 #include <zfs-include/spa.h>
53 54 #include <zfs-include/zio.h>
54 55 #include <zfs-include/zio_checksum.h>
55 56 #include <zfs-include/vdev_impl.h>
56 57 #include <zfs-include/zap_impl.h>
57 58 #include <zfs-include/zap_leaf.h>
58 59 #include <zfs-include/uberblock_impl.h>
59 60 #include <zfs-include/dnode.h>
60 61 #include <zfs-include/dsl_dir.h>
61 62 #include <zfs-include/zfs_acl.h>
62 63 #include <zfs-include/zfs_znode.h>
63 64 #include <zfs-include/dsl_dataset.h>
64 65 #include <zfs-include/zil.h>
65 66 #include <zfs-include/dmu_objset.h>
66 67 #include <zfs-include/sa_impl.h>
67 68
68 69 /*
69 70 * Global Memory addresses to store MOS and DNODE data
70 71 */
71 72 #define MOS ((dnode_phys_t *)\
72 73 (RAW_ADDR((mbi.mem_upper << 10) + 0x100000) - ZFS_SCRATCH_SIZE))
73 74 #define DNODE (MOS+1) /* move sizeof(dnode_phys_t) bytes */
74 75 #define ZFS_SCRATCH ((char *)(DNODE+1))
75 76
76 77 /*
77 78 * Verify dnode type.
78 79 * Can only be used in functions returning non-0 for failure.
79 80 */
80 81 #define VERIFY_DN_TYPE(dnp, type) \
81 82 if (type && (dnp)->dn_type != type) { \
82 83 return (ERR_FSYS_CORRUPT); \
83 84 }
84 85
85 86 /*
86 87 * Verify object set type.
87 88 * Can only be used in functions returning 0 for failure.
88 89 */
89 90 #define VERIFY_OS_TYPE(osp, type) \
90 91 if (type && (osp)->os_type != type) { \
91 92 errnum = ERR_FSYS_CORRUPT; \
92 93 return (0); \
93 94 }
94 95
95 96 #define ZPOOL_PROP_BOOTFS "bootfs"
96 97
97 98 /* General macros */
98 99 #define BSWAP_8(x) ((x) & 0xff)
99 100 #define BSWAP_16(x) ((BSWAP_8(x) << 8) | BSWAP_8((x) >> 8))
100 101 #define BSWAP_32(x) ((BSWAP_16(x) << 16) | BSWAP_16((x) >> 16))
101 102 #define BSWAP_64(x) ((BSWAP_32(x) << 32) | BSWAP_32((x) >> 32))
102 103 #define P2ROUNDUP(x, align) (-(-(x) & -(align)))
103 104
104 105 typedef struct uberblock uberblock_t;
105 106
106 107 /*
107 108 * Macros to get fields in a bp or DVA.
108 109 */
109 110 #define P2PHASE(x, align) ((x) & ((align) - 1))
110 111 #define DVA_OFFSET_TO_PHYS_SECTOR(offset) \
111 112 ((offset + VDEV_LABEL_START_SIZE) >> SPA_MINBLOCKSHIFT)
112 113
113 114 /*
114 115 * return x rounded down to an align boundary
115 116 * eg, P2ALIGN(1200, 1024) == 1024 (1*align)
116 117 * eg, P2ALIGN(1024, 1024) == 1024 (1*align)
117 118 * eg, P2ALIGN(0x1234, 0x100) == 0x1200 (0x12*align)
118 119 * eg, P2ALIGN(0x5600, 0x100) == 0x5600 (0x56*align)
119 120 */
120 121 #define P2ALIGN(x, align) ((x) & -(align))
121 122
122 123 /*
123 124 * For nvlist manipulation. (from nvpair.h)
124 125 */
125 126 #define NV_ENCODE_NATIVE 0
126 127 #define NV_ENCODE_XDR 1
127 128 #define HOST_ENDIAN 1 /* for x86 machine */
128 129 typedef enum {
129 130 DATA_TYPE_UNKNOWN = 0,
130 131 DATA_TYPE_BOOLEAN,
131 132 DATA_TYPE_BYTE,
132 133 DATA_TYPE_INT16,
133 134 DATA_TYPE_UINT16,
134 135 DATA_TYPE_INT32,
135 136 DATA_TYPE_UINT32,
136 137 DATA_TYPE_INT64,
137 138 DATA_TYPE_UINT64,
138 139 DATA_TYPE_STRING,
139 140 DATA_TYPE_BYTE_ARRAY,
140 141 DATA_TYPE_INT16_ARRAY,
141 142 DATA_TYPE_UINT16_ARRAY,
142 143 DATA_TYPE_INT32_ARRAY,
143 144 DATA_TYPE_UINT32_ARRAY,
144 145 DATA_TYPE_INT64_ARRAY,
145 146 DATA_TYPE_UINT64_ARRAY,
146 147 DATA_TYPE_STRING_ARRAY,
147 148 DATA_TYPE_HRTIME,
148 149 DATA_TYPE_NVLIST,
149 150 DATA_TYPE_NVLIST_ARRAY,
150 151 DATA_TYPE_BOOLEAN_VALUE,
151 152 DATA_TYPE_INT8,
152 153 DATA_TYPE_UINT8,
153 154 DATA_TYPE_BOOLEAN_ARRAY,
154 155 DATA_TYPE_INT8_ARRAY,
155 156 DATA_TYPE_UINT8_ARRAY,
156 157 DATA_TYPE_DOUBLE
157 158 } data_type_t;
158 159
159 160 /*
160 161 * Decompression Entry - lzjb
161 162 */
162 163 #ifndef NBBY
163 164 #define NBBY 8
164 165 #endif
165 166
166 167 typedef int zfs_decomp_func_t(void *s_start, void *d_start, size_t s_len,
167 168 size_t d_len);
168 169 typedef struct decomp_entry {
169 170 char *name;
170 171 zfs_decomp_func_t *decomp_func;
171 172 } decomp_entry_t;
172 173
173 174 /*
174 175 * FAT ZAP data structures
175 176 */
176 177 #define ZFS_CRC64_POLY 0xC96C5795D7870F42ULL /* ECMA-182, reflected form */
177 178 #define ZAP_HASH_IDX(hash, n) (((n) == 0) ? 0 : ((hash) >> (64 - (n))))
178 179 #define CHAIN_END 0xffff /* end of the chunk chain */
179 180
180 181 /*
181 182 * The amount of space within the chunk available for the array is:
182 183 * chunk size - space for type (1) - space for next pointer (2)
183 184 */
184 185 #define ZAP_LEAF_ARRAY_BYTES (ZAP_LEAF_CHUNKSIZE - 3)
185 186
186 187 #define ZAP_LEAF_HASH_SHIFT(bs) (bs - 5)
187 188 #define ZAP_LEAF_HASH_NUMENTRIES(bs) (1 << ZAP_LEAF_HASH_SHIFT(bs))
188 189 #define LEAF_HASH(bs, h) \
189 190 ((ZAP_LEAF_HASH_NUMENTRIES(bs)-1) & \
190 191 ((h) >> (64 - ZAP_LEAF_HASH_SHIFT(bs)-l->l_hdr.lh_prefix_len)))
191 192
192 193 /*
193 194 * The amount of space available for chunks is:
194 195 * block size shift - hash entry size (2) * number of hash
195 196 * entries - header space (2*chunksize)
196 197 */
197 198 #define ZAP_LEAF_NUMCHUNKS(bs) \
198 199 (((1<<bs) - 2*ZAP_LEAF_HASH_NUMENTRIES(bs)) / \
199 200 ZAP_LEAF_CHUNKSIZE - 2)
200 201
201 202 /*
202 203 * The chunks start immediately after the hash table. The end of the
203 204 * hash table is at l_hash + HASH_NUMENTRIES, which we simply cast to a
204 205 * chunk_t.
205 206 */
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206 207 #define ZAP_LEAF_CHUNK(l, bs, idx) \
207 208 ((zap_leaf_chunk_t *)(l->l_hash + ZAP_LEAF_HASH_NUMENTRIES(bs)))[idx]
208 209 #define ZAP_LEAF_ENTRY(l, bs, idx) (&ZAP_LEAF_CHUNK(l, bs, idx).l_entry)
209 210
210 211 extern void fletcher_2_native(const void *, uint64_t, zio_cksum_t *);
211 212 extern void fletcher_2_byteswap(const void *, uint64_t, zio_cksum_t *);
212 213 extern void fletcher_4_native(const void *, uint64_t, zio_cksum_t *);
213 214 extern void fletcher_4_byteswap(const void *, uint64_t, zio_cksum_t *);
214 215 extern void zio_checksum_SHA256(const void *, uint64_t, zio_cksum_t *);
215 216 extern int lzjb_decompress(void *, void *, size_t, size_t);
217 +extern int lz4_decompress(void *, void *, size_t, size_t);
216 218
217 219 #endif /* FSYS_ZFS */
218 220
219 221 #endif /* !_FSYS_ZFS_H */
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