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Merge ZFS.

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This commit is contained in:
Robert Millan 2010-12-01 22:57:49 +01:00
commit 15abb5547f
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29
ChangeLog
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@ -1,3 +1,32 @@
2010-12-01 Robert Millan <rmh@gnu.org>
* grub-core/fs/zfs/zfs.c: New file.
* grub-core/fs/zfs/zfs_fletcher.c: Likewise.
* grub-core/fs/zfs/zfs_lzjb.c: Likewise.
* grub-core/fs/zfs/zfs_sha256.c: Likewise.
* grub-core/fs/zfs/zfsinfo.c: Likewise.
* include/grub/zfs/dmu.h: Likewise.
* include/grub/zfs/dmu_objset.h: Likewise.
* include/grub/zfs/dnode.h: Likewise.
* include/grub/zfs/dsl_dataset.h: Likewise.
* include/grub/zfs/dsl_dir.h: Likewise.
* include/grub/zfs/sa_impl.h: Likewise.
* include/grub/zfs/spa.h: Likewise.
* include/grub/zfs/uberblock_impl.h: Likewise.
* include/grub/zfs/vdev_impl.h: Likewise.
* include/grub/zfs/zap_impl.h: Likewise.
* include/grub/zfs/zap_leaf.h: Likewise.
* include/grub/zfs/zfs.h: Likewise.
* include/grub/zfs/zfs_acl.h: Likewise.
* include/grub/zfs/zfs_znode.h: Likewise.
* include/grub/zfs/zil.h: Likewise.
* include/grub/zfs/zio.h: Likewise.
* include/grub/zfs/zio_checksum.h: Likewise.
* Makefile.util.def: Build ZFS into libgrubmods.
* grub-core/Makefile.core.def: Build zfs.mod.
2010-11-30 Szymon Janc <szymon@janc.net.pl> 2010-11-30 Szymon Janc <szymon@janc.net.pl>
* grub-core/commands/regexp.c (grub_cmd_regexp): Remove unused * grub-core/commands/regexp.c (grub_cmd_regexp): Remove unused

4
Makefile.util.def
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@ -70,6 +70,10 @@ library = {
common = grub-core/fs/ufs2.c; common = grub-core/fs/ufs2.c;
common = grub-core/fs/ufs.c; common = grub-core/fs/ufs.c;
common = grub-core/fs/xfs.c; common = grub-core/fs/xfs.c;
common = grub-core/fs/zfs/zfs.c;
common = grub-core/fs/zfs/zfs_lzjb.c;
common = grub-core/fs/zfs/zfs_sha256.c;
common = grub-core/fs/zfs/zfs_fletcher.c;
common = grub-core/lib/arg.c; common = grub-core/lib/arg.c;
common = grub-core/lib/crypto.c; common = grub-core/lib/crypto.c;
common = grub-core/lib/envblk.c; common = grub-core/lib/envblk.c;

13
grub-core/Makefile.core.def
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@ -1007,6 +1007,19 @@ module = {
common = fs/xfs.c; common = fs/xfs.c;
}; };
module = {
name = zfs;
common = fs/zfs/zfs.c;
common = fs/zfs/zfs_lzjb.c;
common = fs/zfs/zfs_sha256.c;
common = fs/zfs/zfs_fletcher.c;
};
module = {
name = zfsinfo;
common = fs/zfs/zfsinfo.c;
};
module = { module = {
name = pxe; name = pxe;
i386_pc = fs/i386/pc/pxe.c; i386_pc = fs/i386/pc/pxe.c;

2543
grub-core/fs/zfs/zfs.c Normal file
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84
grub-core/fs/zfs/zfs_fletcher.c Normal file
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@ -0,0 +1,84 @@
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 1999,2000,2001,2002,2003,2004,2009 Free Software Foundation, Inc.
* Copyright 2007 Sun Microsystems, Inc.
*
* GRUB is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* GRUB is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#include <grub/err.h>
#include <grub/file.h>
#include <grub/mm.h>
#include <grub/misc.h>
#include <grub/disk.h>
#include <grub/dl.h>
#include <grub/types.h>
#include <grub/zfs/zfs.h>
#include <grub/zfs/zio.h>
#include <grub/zfs/dnode.h>
#include <grub/zfs/uberblock_impl.h>
#include <grub/zfs/vdev_impl.h>
#include <grub/zfs/zio_checksum.h>
#include <grub/zfs/zap_impl.h>
#include <grub/zfs/zap_leaf.h>
#include <grub/zfs/zfs_znode.h>
#include <grub/zfs/dmu.h>
#include <grub/zfs/dmu_objset.h>
#include <grub/zfs/dsl_dir.h>
#include <grub/zfs/dsl_dataset.h>
void
fletcher_2(const void *buf, grub_uint64_t size, grub_zfs_endian_t endian,
zio_cksum_t *zcp)
{
const grub_uint64_t *ip = buf;
const grub_uint64_t *ipend = ip + (size / sizeof (grub_uint64_t));
grub_uint64_t a0, b0, a1, b1;
for (a0 = b0 = a1 = b1 = 0; ip < ipend; ip += 2)
{
a0 += grub_zfs_to_cpu64 (ip[0], endian);
a1 += grub_zfs_to_cpu64 (ip[1], endian);
b0 += a0;
b1 += a1;
}
zcp->zc_word[0] = grub_cpu_to_zfs64 (a0, endian);
zcp->zc_word[1] = grub_cpu_to_zfs64 (a1, endian);
zcp->zc_word[2] = grub_cpu_to_zfs64 (b0, endian);
zcp->zc_word[3] = grub_cpu_to_zfs64 (b1, endian);
}
void
fletcher_4 (const void *buf, grub_uint64_t size, grub_zfs_endian_t endian,
zio_cksum_t *zcp)
{
const grub_uint32_t *ip = buf;
const grub_uint32_t *ipend = ip + (size / sizeof (grub_uint32_t));
grub_uint64_t a, b, c, d;
for (a = b = c = d = 0; ip < ipend; ip++)
{
a += grub_zfs_to_cpu32 (ip[0], endian);;
b += a;
c += b;
d += c;
}
zcp->zc_word[0] = grub_cpu_to_zfs64 (a, endian);
zcp->zc_word[1] = grub_cpu_to_zfs64 (b, endian);
zcp->zc_word[2] = grub_cpu_to_zfs64 (c, endian);
zcp->zc_word[3] = grub_cpu_to_zfs64 (d, endian);
}

93
grub-core/fs/zfs/zfs_lzjb.c Normal file
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@ -0,0 +1,93 @@
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 1999,2000,2001,2002,2003,2004,2009 Free Software Foundation, Inc.
* Copyright 2007 Sun Microsystems, Inc.
*
* GRUB is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* GRUB is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#include <grub/err.h>
#include <grub/file.h>
#include <grub/mm.h>
#include <grub/misc.h>
#include <grub/disk.h>
#include <grub/dl.h>
#include <grub/types.h>
#include <grub/zfs/zfs.h>
#include <grub/zfs/zio.h>
#include <grub/zfs/dnode.h>
#include <grub/zfs/uberblock_impl.h>
#include <grub/zfs/vdev_impl.h>
#include <grub/zfs/zio_checksum.h>
#include <grub/zfs/zap_impl.h>
#include <grub/zfs/zap_leaf.h>
#include <grub/zfs/zfs_znode.h>
#include <grub/zfs/dmu.h>
#include <grub/zfs/dmu_objset.h>
#include <grub/zfs/dsl_dir.h>
#include <grub/zfs/dsl_dataset.h>
#define MATCH_BITS 6
#define MATCH_MIN 3
#define OFFSET_MASK ((1 << (16 - MATCH_BITS)) - 1)
/*
* Decompression Entry - lzjb
*/
#ifndef NBBY
#define NBBY 8
#endif
grub_err_t
lzjb_decompress (void *s_start, void *d_start, grub_size_t s_len,
grub_size_t d_len);
grub_err_t
lzjb_decompress (void *s_start, void *d_start, grub_size_t s_len,
grub_size_t d_len)
{
grub_uint8_t *src = s_start;
grub_uint8_t *dst = d_start;
grub_uint8_t *d_end = (grub_uint8_t *) d_start + d_len;
grub_uint8_t *s_end = (grub_uint8_t *) s_start + s_len;
grub_uint8_t *cpy, copymap = 0;
int copymask = 1 << (NBBY - 1);
while (dst < d_end && src < s_end)
{
if ((copymask <<= 1) == (1 << NBBY))
{
copymask = 1;
copymap = *src++;
}
if (src >= s_end)
return grub_error (GRUB_ERR_BAD_FS, "lzjb decompression failed");
if (copymap & copymask)
{
int mlen = (src[0] >> (NBBY - MATCH_BITS)) + MATCH_MIN;
int offset = ((src[0] << NBBY) | src[1]) & OFFSET_MASK;
src += 2;
cpy = dst - offset;
if (src > s_end || cpy < (grub_uint8_t *) d_start)
return grub_error (GRUB_ERR_BAD_FS, "lzjb decompression failed");
while (--mlen >= 0 && dst < d_end)
*dst++ = *cpy++;
}
else
*dst++ = *src++;
}
if (dst < d_end)
return grub_error (GRUB_ERR_BAD_FS, "lzjb decompression failed");
return GRUB_ERR_NONE;
}

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grub-core/fs/zfs/zfs_sha256.c Normal file
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@ -0,0 +1,143 @@
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 1999,2000,2001,2002,2003,2004,2009 Free Software Foundation, Inc.
* Copyright 2007 Sun Microsystems, Inc.
*
* GRUB is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* GRUB is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#include <grub/err.h>
#include <grub/file.h>
#include <grub/mm.h>
#include <grub/misc.h>
#include <grub/disk.h>
#include <grub/dl.h>
#include <grub/types.h>
#include <grub/zfs/zfs.h>
#include <grub/zfs/zio.h>
#include <grub/zfs/dnode.h>
#include <grub/zfs/uberblock_impl.h>
#include <grub/zfs/vdev_impl.h>
#include <grub/zfs/zio_checksum.h>
#include <grub/zfs/zap_impl.h>
#include <grub/zfs/zap_leaf.h>
#include <grub/zfs/zfs_znode.h>
#include <grub/zfs/dmu.h>
#include <grub/zfs/dmu_objset.h>
#include <grub/zfs/dsl_dir.h>
#include <grub/zfs/dsl_dataset.h>
/*
* SHA-256 checksum, as specified in FIPS 180-2, available at:
* http://csrc.nist.gov/cryptval
*
* This is a very compact implementation of SHA-256.
* It is designed to be simple and portable, not to be fast.
*/
/*
* The literal definitions according to FIPS180-2 would be:
*
* Ch(x, y, z) (((x) & (y)) ^ ((~(x)) & (z)))
* Maj(x, y, z) (((x) & (y)) | ((x) & (z)) | ((y) & (z)))
*
* We use logical equivalents which require one less op.
*/
#define Ch(x, y, z) ((z) ^ ((x) & ((y) ^ (z))))
#define Maj(x, y, z) (((x) & (y)) ^ ((z) & ((x) ^ (y))))
#define Rot32(x, s) (((x) >> s) | ((x) << (32 - s)))
#define SIGMA0(x) (Rot32(x, 2) ^ Rot32(x, 13) ^ Rot32(x, 22))
#define SIGMA1(x) (Rot32(x, 6) ^ Rot32(x, 11) ^ Rot32(x, 25))
#define sigma0(x) (Rot32(x, 7) ^ Rot32(x, 18) ^ ((x) >> 3))
#define sigma1(x) (Rot32(x, 17) ^ Rot32(x, 19) ^ ((x) >> 10))
static const grub_uint32_t SHA256_K[64] = {
0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5,
0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3,
0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc,
0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7,
0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13,
0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3,
0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5,
0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208,
0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2
};
static void
SHA256Transform(grub_uint32_t *H, const grub_uint8_t *cp)
{
grub_uint32_t a, b, c, d, e, f, g, h, t, T1, T2, W[64];
for (t = 0; t < 16; t++, cp += 4)
W[t] = (cp[0] << 24) | (cp[1] << 16) | (cp[2] << 8) | cp[3];
for (t = 16; t < 64; t++)
W[t] = sigma1(W[t - 2]) + W[t - 7] +
sigma0(W[t - 15]) + W[t - 16];
a = H[0]; b = H[1]; c = H[2]; d = H[3];
e = H[4]; f = H[5]; g = H[6]; h = H[7];
for (t = 0; t < 64; t++) {
T1 = h + SIGMA1(e) + Ch(e, f, g) + SHA256_K[t] + W[t];
T2 = SIGMA0(a) + Maj(a, b, c);
h = g; g = f; f = e; e = d + T1;
d = c; c = b; b = a; a = T1 + T2;
}
H[0] += a; H[1] += b; H[2] += c; H[3] += d;
H[4] += e; H[5] += f; H[6] += g; H[7] += h;
}
void
zio_checksum_SHA256(const void *buf, grub_uint64_t size,
grub_zfs_endian_t endian, zio_cksum_t *zcp)
{
grub_uint32_t H[8] = { 0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a,
0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19 };
grub_uint8_t pad[128];
unsigned padsize = size & 63;
unsigned i;
for (i = 0; i < size - padsize; i += 64)
SHA256Transform(H, (grub_uint8_t *)buf + i);
for (i = 0; i < padsize; i++)
pad[i] = ((grub_uint8_t *)buf)[i];
for (pad[padsize++] = 0x80; (padsize & 63) != 56; padsize++)
pad[padsize] = 0;
for (i = 0; i < 8; i++)
pad[padsize++] = (size << 3) >> (56 - 8 * i);
for (i = 0; i < padsize; i += 64)
SHA256Transform(H, pad + i);
zcp->zc_word[0] = grub_cpu_to_zfs64 ((grub_uint64_t)H[0] << 32 | H[1],
endian);
zcp->zc_word[1] = grub_cpu_to_zfs64 ((grub_uint64_t)H[2] << 32 | H[3],
endian);
zcp->zc_word[2] = grub_cpu_to_zfs64 ((grub_uint64_t)H[4] << 32 | H[5],
endian);
zcp->zc_word[3] = grub_cpu_to_zfs64 ((grub_uint64_t)H[6] << 32 | H[7],
endian);
}

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grub-core/fs/zfs/zfsinfo.c Normal file
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@ -0,0 +1,412 @@
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 1999,2000,2001,2002,2003,2004,2009 Free Software Foundation, Inc.
* Copyright 2008 Sun Microsystems, Inc.
*
* GRUB is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* GRUB is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#include <grub/zfs/zfs.h>
#include <grub/device.h>
#include <grub/file.h>
#include <grub/command.h>
#include <grub/misc.h>
#include <grub/mm.h>
#include <grub/dl.h>
#include <grub/env.h>
static inline void
print_tabs (int n)
{
int i;
for (i = 0; i < n; i++)
grub_printf (" ");
}
static grub_err_t
print_state (char *nvlist, int tab)
{
grub_uint64_t ival;
int isok = 1;
print_tabs (tab);
grub_printf ("State: ");
if (grub_zfs_nvlist_lookup_uint64 (nvlist, ZPOOL_CONFIG_REMOVED, &ival))
{
grub_printf ("removed ");
isok = 0;
}
if (grub_zfs_nvlist_lookup_uint64 (nvlist, ZPOOL_CONFIG_FAULTED, &ival))
{
grub_printf ("faulted ");
isok = 0;
}
if (grub_zfs_nvlist_lookup_uint64 (nvlist, ZPOOL_CONFIG_OFFLINE, &ival))
{
grub_printf ("offline ");
isok = 0;
}
if (grub_zfs_nvlist_lookup_uint64 (nvlist, ZPOOL_CONFIG_FAULTED, &ival))
grub_printf ("degraded ");
if (isok)
grub_printf ("online");
grub_printf ("\n");
return GRUB_ERR_NONE;
}
static grub_err_t
print_vdev_info (char *nvlist, int tab)
{
char *type = 0;
type = grub_zfs_nvlist_lookup_string (nvlist, ZPOOL_CONFIG_TYPE);
if (!type)
{
print_tabs (tab);
grub_printf ("Incorrect VDEV: no type available\n");
return grub_errno;
}
if (grub_strcmp (type, VDEV_TYPE_DISK) == 0)
{
char *bootpath = 0;
char *path = 0;
char *devid = 0;
print_tabs (tab);
grub_printf ("Leaf VDEV\n");
print_state (nvlist, tab);
bootpath =
grub_zfs_nvlist_lookup_string (nvlist, ZPOOL_CONFIG_PHYS_PATH);
print_tabs (tab);
if (!bootpath)
grub_printf ("Bootpath: unavailable\n");
else
grub_printf ("Bootpath: %s\n", bootpath);
path = grub_zfs_nvlist_lookup_string (nvlist, "path");
print_tabs (tab);
if (!path)
grub_printf ("Path: unavailable\n");
else
grub_printf ("Path: %s\n", path);
devid = grub_zfs_nvlist_lookup_string (nvlist, ZPOOL_CONFIG_DEVID);
print_tabs (tab);
if (!devid)
grub_printf ("Devid: unavailable\n");
else
grub_printf ("Devid: %s\n", devid);
grub_free (bootpath);
grub_free (devid);
grub_free (path);
return GRUB_ERR_NONE;
}
if (grub_strcmp (type, VDEV_TYPE_MIRROR) == 0)
{
int nelm, i;
nelm = grub_zfs_nvlist_lookup_nvlist_array_get_nelm
(nvlist, ZPOOL_CONFIG_CHILDREN);
print_tabs (tab);
if (nelm <= 0)
{
grub_printf ("Incorrect mirror VDEV\n");
return GRUB_ERR_NONE;
}
grub_printf ("Mirror VDEV with %d children\n", nelm);
print_state (nvlist, tab);
for (i = 0; i < nelm; i++)
{
char *child;
child = grub_zfs_nvlist_lookup_nvlist_array
(nvlist, ZPOOL_CONFIG_CHILDREN, i);
print_tabs (tab);
if (!child)
{
grub_printf ("Mirror VDEV element %d isn't correct\n", i);
continue;
}
grub_printf ("Mirror VDEV element %d:\n", i);
print_vdev_info (child, tab + 1);
grub_free (child);
}
}
print_tabs (tab);
grub_printf ("Unknown VDEV type: %s\n", type);
return GRUB_ERR_NONE;
}
static grub_err_t
get_bootpath (char *nvlist, char **bootpath, char **devid)
{
char *type = 0;
type = grub_zfs_nvlist_lookup_string (nvlist, ZPOOL_CONFIG_TYPE);
if (!type)
return grub_errno;
if (grub_strcmp (type, VDEV_TYPE_DISK) == 0)
{
*bootpath = grub_zfs_nvlist_lookup_string (nvlist,
ZPOOL_CONFIG_PHYS_PATH);
*devid = grub_zfs_nvlist_lookup_string (nvlist, ZPOOL_CONFIG_DEVID);
if (!*bootpath || !*devid)
{
grub_free (*bootpath);
grub_free (*devid);
*bootpath = 0;
*devid = 0;
}
return GRUB_ERR_NONE;
}
if (grub_strcmp (type, VDEV_TYPE_MIRROR) == 0)
{
int nelm, i;
nelm = grub_zfs_nvlist_lookup_nvlist_array_get_nelm
(nvlist, ZPOOL_CONFIG_CHILDREN);
for (i = 0; i < nelm; i++)
{
char *child;
child = grub_zfs_nvlist_lookup_nvlist_array (nvlist,
ZPOOL_CONFIG_CHILDREN,
i);
get_bootpath (child, bootpath, devid);
grub_free (child);
if (*bootpath && *devid)
return GRUB_ERR_NONE;
}
}
return GRUB_ERR_NONE;
}
static char *poolstates[] = {
[POOL_STATE_ACTIVE] = "active",
[POOL_STATE_EXPORTED] = "exported",
[POOL_STATE_DESTROYED] = "destroyed",
[POOL_STATE_SPARE] = "reserved for hot spare",
[POOL_STATE_L2CACHE] = "level 2 ARC device",
[POOL_STATE_UNINITIALIZED] = "uninitialized",
[POOL_STATE_UNAVAIL] = "unavailable",
[POOL_STATE_POTENTIALLY_ACTIVE] = "potentially active"
};
static grub_err_t
grub_cmd_zfsinfo (grub_command_t cmd __attribute__ ((unused)), int argc,
char **args)
{
grub_device_t dev;
char *devname;
grub_err_t err;
char *nvlist = 0;
char *nv = 0;
char *poolname;
grub_uint64_t guid;
grub_uint64_t pool_state;
int found;
if (argc < 1)
return grub_error (GRUB_ERR_BAD_ARGUMENT, "device name required");
if (args[0][0] == '(' && args[0][grub_strlen (args[0]) - 1] == ')')
{
devname = grub_strdup (args[0] + 1);
if (devname)
devname[grub_strlen (devname) - 1] = 0;
}
else
devname = grub_strdup (args[0]);
if (!devname)
return grub_errno;
dev = grub_device_open (devname);
grub_free (devname);
if (!dev)
return grub_errno;
err = grub_zfs_fetch_nvlist (dev, &nvlist);
grub_device_close (dev);
if (err)
return err;
poolname = grub_zfs_nvlist_lookup_string (nvlist, ZPOOL_CONFIG_POOL_NAME);
if (!poolname)
grub_printf ("Pool name: unavailable\n");
else
grub_printf ("Pool name: %s\n", poolname);
found =
grub_zfs_nvlist_lookup_uint64 (nvlist, ZPOOL_CONFIG_POOL_GUID, &guid);
if (!found)
grub_printf ("Pool GUID: unavailable\n");
else
grub_printf ("Pool GUID: %016llx\n", (long long unsigned) guid);
found = grub_zfs_nvlist_lookup_uint64 (nvlist, ZPOOL_CONFIG_POOL_STATE,
&pool_state);
if (!found)
grub_printf ("Unable to retrieve pool state\n");
else if (pool_state >= ARRAY_SIZE (poolstates))
grub_printf ("Unrecognized pool state\n");
else
grub_printf ("Pool state: %s\n", poolstates[pool_state]);
nv = grub_zfs_nvlist_lookup_nvlist (nvlist, ZPOOL_CONFIG_VDEV_TREE);
if (!nv)
grub_printf ("No vdev tree available\n");
else
print_vdev_info (nv, 1);
grub_free (nv);
grub_free (nvlist);
return GRUB_ERR_NONE;
}
static grub_err_t
grub_cmd_zfs_bootfs (grub_command_t cmd __attribute__ ((unused)), int argc,
char **args)
{
grub_device_t dev;
char *devname;
grub_err_t err;
char *nvlist = 0;
char *nv = 0;
char *bootpath = 0, *devid = 0;
char *fsname;
char *bootfs;
char *poolname;
grub_uint64_t mdnobj;
if (argc < 1)
return grub_error (GRUB_ERR_BAD_ARGUMENT, "filesystem name required");
devname = grub_file_get_device_name (args[0]);
if (grub_errno)
return grub_errno;
dev = grub_device_open (devname);
grub_free (devname);
if (!dev)
return grub_errno;
err = grub_zfs_fetch_nvlist (dev, &nvlist);
fsname = grub_strchr (args[0], ')');
if (fsname)
fsname++;
else
fsname = args[0];
if (!err)
err = grub_zfs_getmdnobj (dev, fsname, &mdnobj);
grub_device_close (dev);
if (err)
return err;
poolname = grub_zfs_nvlist_lookup_string (nvlist, ZPOOL_CONFIG_POOL_NAME);
if (!poolname)
{
if (!grub_errno)
grub_error (GRUB_ERR_BAD_FS, "No poolname found");
return grub_errno;
}
nv = grub_zfs_nvlist_lookup_nvlist (nvlist, ZPOOL_CONFIG_VDEV_TREE);
if (nv)
get_bootpath (nv, &bootpath, &devid);
grub_free (nv);
grub_free (nvlist);
if (bootpath && devid)
{
bootfs = grub_xasprintf ("zfs-bootfs=%s/%llu bootpath=%s diskdevid=%s",
poolname, (unsigned long long) mdnobj,
bootpath, devid);
if (!bootfs)
return grub_errno;
}
else
{
bootfs = grub_xasprintf ("zfs-bootfs=%s/%llu",
poolname, (unsigned long long) mdnobj);
if (!bootfs)
return grub_errno;
}
if (argc >= 2)
grub_env_set (args[1], bootfs);
else
grub_printf ("%s\n", bootfs);
grub_free (bootfs);
grub_free (poolname);
grub_free (bootpath);
grub_free (devid);
return GRUB_ERR_NONE;
}
static grub_command_t cmd_info, cmd_bootfs;
GRUB_MOD_INIT (zfsinfo)
{
cmd_info = grub_register_command ("zfsinfo", grub_cmd_zfsinfo,
"zfsinfo DEVICE",
"Print ZFS info about DEVICE.");
cmd_bootfs = grub_register_command ("zfs-bootfs", grub_cmd_zfs_bootfs,
"zfs-bootfs FILESYSTEM [VARIABLE]",
"Print ZFS-BOOTFSOBJ or set it to VARIABLE");
}
GRUB_MOD_FINI (zfsinfo)
{
grub_unregister_command (cmd_info);
grub_unregister_command (cmd_bootfs);
}

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/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 1999,2000,2001,2002,2003,2004 Free Software Foundation, Inc.
*
* GRUB is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* GRUB is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* Copyright 2010 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _SYS_DMU_H
#define _SYS_DMU_H
/*
* This file describes the interface that the DMU provides for its
* consumers.
*
* The DMU also interacts with the SPA. That interface is described in
* dmu_spa.h.
*/
typedef enum dmu_object_type {
DMU_OT_NONE,
/* general: */
DMU_OT_OBJECT_DIRECTORY, /* ZAP */
DMU_OT_OBJECT_ARRAY, /* UINT64 */
DMU_OT_PACKED_NVLIST, /* UINT8 (XDR by nvlist_pack/unpack) */
DMU_OT_PACKED_NVLIST_SIZE, /* UINT64 */
DMU_OT_BPLIST, /* UINT64 */
DMU_OT_BPLIST_HDR, /* UINT64 */
/* spa: */
DMU_OT_SPACE_MAP_HEADER, /* UINT64 */
DMU_OT_SPACE_MAP, /* UINT64 */
/* zil: */
DMU_OT_INTENT_LOG, /* UINT64 */
/* dmu: */
DMU_OT_DNODE, /* DNODE */
DMU_OT_OBJSET, /* OBJSET */
/* dsl: */
DMU_OT_DSL_DIR, /* UINT64 */
DMU_OT_DSL_DIR_CHILD_MAP, /* ZAP */
DMU_OT_DSL_DS_SNAP_MAP, /* ZAP */
DMU_OT_DSL_PROPS, /* ZAP */
DMU_OT_DSL_DATASET, /* UINT64 */
/* zpl: */
DMU_OT_ZNODE, /* ZNODE */
DMU_OT_OLDACL, /* OLD ACL */
DMU_OT_PLAIN_FILE_CONTENTS, /* UINT8 */
DMU_OT_DIRECTORY_CONTENTS, /* ZAP */
DMU_OT_MASTER_NODE, /* ZAP */
DMU_OT_UNLINKED_SET, /* ZAP */
/* zvol: */
DMU_OT_ZVOL, /* UINT8 */
DMU_OT_ZVOL_PROP, /* ZAP */
/* other; for testing only! */
DMU_OT_PLAIN_OTHER, /* UINT8 */
DMU_OT_UINT64_OTHER, /* UINT64 */
DMU_OT_ZAP_OTHER, /* ZAP */
/* new object types: */
DMU_OT_ERROR_LOG, /* ZAP */
DMU_OT_SPA_HISTORY, /* UINT8 */
DMU_OT_SPA_HISTORY_OFFSETS, /* spa_his_phys_t */
DMU_OT_POOL_PROPS, /* ZAP */
DMU_OT_DSL_PERMS, /* ZAP */
DMU_OT_ACL, /* ACL */
DMU_OT_SYSACL, /* SYSACL */
DMU_OT_FUID, /* FUID table (Packed NVLIST UINT8) */
DMU_OT_FUID_SIZE, /* FUID table size UINT64 */
DMU_OT_NEXT_CLONES, /* ZAP */
DMU_OT_SCRUB_QUEUE, /* ZAP */
DMU_OT_USERGROUP_USED, /* ZAP */
DMU_OT_USERGROUP_QUOTA, /* ZAP */
DMU_OT_USERREFS, /* ZAP */
DMU_OT_DDT_ZAP, /* ZAP */
DMU_OT_DDT_STATS, /* ZAP */
DMU_OT_SA, /* System attr */
DMU_OT_SA_MASTER_NODE, /* ZAP */
DMU_OT_SA_ATTR_REGISTRATION, /* ZAP */
DMU_OT_SA_ATTR_LAYOUTS, /* ZAP */
DMU_OT_NUMTYPES
} dmu_object_type_t;
typedef enum dmu_objset_type {
DMU_OST_NONE,
DMU_OST_META,
DMU_OST_ZFS,
DMU_OST_ZVOL,
DMU_OST_OTHER, /* For testing only! */
DMU_OST_ANY, /* Be careful! */
DMU_OST_NUMTYPES
} dmu_objset_type_t;
/*
* The names of zap entries in the DIRECTORY_OBJECT of the MOS.
*/
#define DMU_POOL_DIRECTORY_OBJECT 1
#define DMU_POOL_CONFIG "config"
#define DMU_POOL_ROOT_DATASET "root_dataset"
#define DMU_POOL_SYNC_BPLIST "sync_bplist"
#define DMU_POOL_ERRLOG_SCRUB "errlog_scrub"
#define DMU_POOL_ERRLOG_LAST "errlog_last"
#define DMU_POOL_SPARES "spares"
#define DMU_POOL_DEFLATE "deflate"
#define DMU_POOL_HISTORY "history"
#define DMU_POOL_PROPS "pool_props"
#define DMU_POOL_L2CACHE "l2cache"
#endif /* _SYS_DMU_H */

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/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 1999,2000,2001,2002,2003,2004 Free Software Foundation, Inc.
* Copyright (C) 2010 Robert Millan <rmh@gnu.org>
*
* GRUB is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* GRUB is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _SYS_DMU_OBJSET_H
#define _SYS_DMU_OBJSET_H
#include <grub/zfs/zil.h>
#define OBJSET_PHYS_SIZE 2048
#define OBJSET_PHYS_SIZE_V14 1024
typedef struct objset_phys {
dnode_phys_t os_meta_dnode;
zil_header_t os_zil_header;
grub_uint64_t os_type;
grub_uint64_t os_flags;
char os_pad[OBJSET_PHYS_SIZE - sizeof (dnode_phys_t)*3 -
sizeof (zil_header_t) - sizeof (grub_uint64_t)*2];
dnode_phys_t os_userused_dnode;
dnode_phys_t os_groupused_dnode;
} objset_phys_t;
#endif /* _SYS_DMU_OBJSET_H */

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/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 1999,2000,2001,2002,2003,2004 Free Software Foundation, Inc.
*
* GRUB is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* GRUB is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* Copyright 2010 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _SYS_DNODE_H
#define _SYS_DNODE_H
#include <grub/zfs/spa.h>
/*
* Fixed constants.
*/
#define DNODE_SHIFT 9 /* 512 bytes */
#define DN_MIN_INDBLKSHIFT 10 /* 1k */
#define DN_MAX_INDBLKSHIFT 14 /* 16k */
#define DNODE_BLOCK_SHIFT 14 /* 16k */
#define DNODE_CORE_SIZE 64 /* 64 bytes for dnode sans blkptrs */
#define DN_MAX_OBJECT_SHIFT 48 /* 256 trillion (zfs_fid_t limit) */
#define DN_MAX_OFFSET_SHIFT 64 /* 2^64 bytes in a dnode */
/*
* Derived constants.
*/
#define DNODE_SIZE (1 << DNODE_SHIFT)
#define DN_MAX_NBLKPTR ((DNODE_SIZE - DNODE_CORE_SIZE) >> SPA_BLKPTRSHIFT)
#define DN_MAX_BONUSLEN (DNODE_SIZE - DNODE_CORE_SIZE - (1 << SPA_BLKPTRSHIFT))
#define DN_MAX_OBJECT (1ULL << DN_MAX_OBJECT_SHIFT)
#define DNODES_PER_BLOCK_SHIFT (DNODE_BLOCK_SHIFT - DNODE_SHIFT)
#define DNODES_PER_BLOCK (1ULL << DNODES_PER_BLOCK_SHIFT)
#define DNODES_PER_LEVEL_SHIFT (DN_MAX_INDBLKSHIFT - SPA_BLKPTRSHIFT)
#define DNODE_FLAG_SPILL_BLKPTR (1<<2)
#define DN_BONUS(dnp) ((void*)((dnp)->dn_bonus + \
(((dnp)->dn_nblkptr - 1) * sizeof (blkptr_t))))
typedef struct dnode_phys {
grub_uint8_t dn_type; /* dmu_object_type_t */
grub_uint8_t dn_indblkshift; /* ln2(indirect block size) */
grub_uint8_t dn_nlevels; /* 1=dn_blkptr->data blocks */
grub_uint8_t dn_nblkptr; /* length of dn_blkptr */
grub_uint8_t dn_bonustype; /* type of data in bonus buffer */
grub_uint8_t dn_checksum; /* ZIO_CHECKSUM type */
grub_uint8_t dn_compress; /* ZIO_COMPRESS type */
grub_uint8_t dn_flags; /* DNODE_FLAG_* */
grub_uint16_t dn_datablkszsec; /* data block size in 512b sectors */
grub_uint16_t dn_bonuslen; /* length of dn_bonus */
grub_uint8_t dn_pad2[4];
/* accounting is protected by dn_dirty_mtx */
grub_uint64_t dn_maxblkid; /* largest allocated block ID */
grub_uint64_t dn_used; /* bytes (or sectors) of disk space */
grub_uint64_t dn_pad3[4];
blkptr_t dn_blkptr[1];
grub_uint8_t dn_bonus[DN_MAX_BONUSLEN - sizeof (blkptr_t)];
blkptr_t dn_spill;
} dnode_phys_t;
#endif /* _SYS_DNODE_H */

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/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 1999,2000,2001,2002,2003,2004 Free Software Foundation, Inc.
*
* GRUB is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* GRUB is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _SYS_DSL_DATASET_H
#define _SYS_DSL_DATASET_H
typedef struct dsl_dataset_phys {
grub_uint64_t ds_dir_obj;
grub_uint64_t ds_prev_snap_obj;
grub_uint64_t ds_prev_snap_txg;
grub_uint64_t ds_next_snap_obj;
grub_uint64_t ds_snapnames_zapobj; /* zap obj of snaps; ==0 for snaps */
grub_uint64_t ds_num_children; /* clone/snap children; ==0 for head */
grub_uint64_t ds_creation_time; /* seconds since 1970 */
grub_uint64_t ds_creation_txg;
grub_uint64_t ds_deadlist_obj;
grub_uint64_t ds_used_bytes;
grub_uint64_t ds_compressed_bytes;
grub_uint64_t ds_uncompressed_bytes;
grub_uint64_t ds_unique_bytes; /* only relevant to snapshots */
/*
* The ds_fsid_guid is a 56-bit ID that can change to avoid
* collisions. The ds_guid is a 64-bit ID that will never
* change, so there is a small probability that it will collide.
*/
grub_uint64_t ds_fsid_guid;
grub_uint64_t ds_guid;
grub_uint64_t ds_flags;
blkptr_t ds_bp;
grub_uint64_t ds_pad[8]; /* pad out to 320 bytes for good measure */
} dsl_dataset_phys_t;
#endif /* _SYS_DSL_DATASET_H */

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/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 1999,2000,2001,2002,2003,2004 Free Software Foundation, Inc.
*
* GRUB is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* GRUB is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _SYS_DSL_DIR_H
#define _SYS_DSL_DIR_H
typedef struct dsl_dir_phys {
grub_uint64_t dd_creation_time; /* not actually used */
grub_uint64_t dd_head_dataset_obj;
grub_uint64_t dd_parent_obj;
grub_uint64_t dd_clone_parent_obj;
grub_uint64_t dd_child_dir_zapobj;
/*
* how much space our children are accounting for; for leaf
* datasets, == physical space used by fs + snaps
*/
grub_uint64_t dd_used_bytes;
grub_uint64_t dd_compressed_bytes;
grub_uint64_t dd_uncompressed_bytes;
/* Administrative quota setting */
grub_uint64_t dd_quota;
/* Administrative reservation setting */
grub_uint64_t dd_reserved;
grub_uint64_t dd_props_zapobj;
grub_uint64_t dd_deleg_zapobj; /* dataset permissions */
grub_uint64_t dd_pad[20]; /* pad out to 256 bytes for good measure */
} dsl_dir_phys_t;
#endif /* _SYS_DSL_DIR_H */

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/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 1999,2000,2001,2002,2003,2004 Free Software Foundation, Inc.
*
* GRUB is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* GRUB is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* Copyright 2010 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _SYS_SA_IMPL_H
#define _SYS_SA_IMPL_H
typedef struct sa_hdr_phys {
grub_uint32_t sa_magic;
grub_uint16_t sa_layout_info;
grub_uint16_t sa_lengths[1];
} sa_hdr_phys_t;
#define SA_HDR_SIZE(hdr) BF32_GET_SB(hdr->sa_layout_info, 10, 16, 3, 0)
#define SA_SIZE_OFFSET 0x8
#endif /* _SYS_SA_IMPL_H */

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/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 1999,2000,2001,2002,2003,2004,2009 Free Software Foundation, Inc.
* Copyright 2010 Sun Microsystems, Inc.
*
* GRUB is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* GRUB is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef GRUB_ZFS_SPA_HEADER
#define GRUB_ZFS_SPA_HEADER 1
typedef enum grub_zfs_endian
{
UNKNOWN_ENDIAN = -2,
LITTLE_ENDIAN = -1,
BIG_ENDIAN = 0
} grub_zfs_endian_t;
#define grub_zfs_to_cpu16(x,a) (((a) == BIG_ENDIAN) ? grub_be_to_cpu16(x) \
: grub_le_to_cpu16(x))
#define grub_cpu_to_zfs16(x,a) (((a) == BIG_ENDIAN) ? grub_cpu_to_be16(x) \
: grub_cpu_to_le16(x))
#define grub_zfs_to_cpu32(x,a) (((a) == BIG_ENDIAN) ? grub_be_to_cpu32(x) \
: grub_le_to_cpu32(x))
#define grub_cpu_to_zfs32(x,a) (((a) == BIG_ENDIAN) ? grub_cpu_to_be32(x) \
: grub_cpu_to_le32(x))
#define grub_zfs_to_cpu64(x,a) (((a) == BIG_ENDIAN) ? grub_be_to_cpu64(x) \
: grub_le_to_cpu64(x))
#define grub_cpu_to_zfs64(x,a) (((a) == BIG_ENDIAN) ? grub_cpu_to_be64(x) \
: grub_cpu_to_le64(x))
/*
* General-purpose 32-bit and 64-bit bitfield encodings.
*/
#define BF32_DECODE(x, low, len) P2PHASE((x) >> (low), 1U << (len))
#define BF64_DECODE(x, low, len) P2PHASE((x) >> (low), 1ULL << (len))
#define BF32_ENCODE(x, low, len) (P2PHASE((x), 1U << (len)) << (low))
#define BF64_ENCODE(x, low, len) (P2PHASE((x), 1ULL << (len)) << (low))
#define BF32_GET(x, low, len) BF32_DECODE(x, low, len)
#define BF64_GET(x, low, len) BF64_DECODE(x, low, len)
#define BF32_SET(x, low, len, val) \
((x) ^= BF32_ENCODE((x >> low) ^ (val), low, len))
#define BF64_SET(x, low, len, val) \
((x) ^= BF64_ENCODE((x >> low) ^ (val), low, len))
#define BF32_GET_SB(x, low, len, shift, bias) \
((BF32_GET(x, low, len) + (bias)) << (shift))
#define BF64_GET_SB(x, low, len, shift, bias) \
((BF64_GET(x, low, len) + (bias)) << (shift))
#define BF32_SET_SB(x, low, len, shift, bias, val) \
BF32_SET(x, low, len, ((val) >> (shift)) - (bias))
#define BF64_SET_SB(x, low, len, shift, bias, val) \
BF64_SET(x, low, len, ((val) >> (shift)) - (bias))
/*
* We currently support nine block sizes, from 512 bytes to 128K.
* We could go higher, but the benefits are near-zero and the cost
* of COWing a giant block to modify one byte would become excessive.
*/
#define SPA_MINBLOCKSHIFT 9
#define SPA_MAXBLOCKSHIFT 17
#define SPA_MINBLOCKSIZE (1ULL << SPA_MINBLOCKSHIFT)
#define SPA_MAXBLOCKSIZE (1ULL << SPA_MAXBLOCKSHIFT)
#define SPA_BLOCKSIZES (SPA_MAXBLOCKSHIFT - SPA_MINBLOCKSHIFT + 1)
/*
* Size of block to hold the configuration data (a packed nvlist)
*/
#define SPA_CONFIG_BLOCKSIZE (1 << 14)
/*
* The DVA size encodings for LSIZE and PSIZE support blocks up to 32MB.
* The ASIZE encoding should be at least 64 times larger (6 more bits)
* to support up to 4-way RAID-Z mirror mode with worst-case gang block
* overhead, three DVAs per bp, plus one more bit in case we do anything
* else that expands the ASIZE.
*/
#define SPA_LSIZEBITS 16 /* LSIZE up to 32M (2^16 * 512) */
#define SPA_PSIZEBITS 16 /* PSIZE up to 32M (2^16 * 512) */
#define SPA_ASIZEBITS 24 /* ASIZE up to 64 times larger */
/*
* All SPA data is represented by 128-bit data virtual addresses (DVAs).
* The members of the dva_t should be considered opaque outside the SPA.
*/
typedef struct dva {
grub_uint64_t dva_word[2];
} dva_t;
/*
* Each block has a 256-bit checksum -- strong enough for cryptographic hashes.
*/
typedef struct zio_cksum {
grub_uint64_t zc_word[4];
} zio_cksum_t;
/*
* Each block is described by its DVAs, time of birth, checksum, etc.
* The word-by-word, bit-by-bit layout of the blkptr is as follows:
*
* 64 56 48 40 32 24 16 8 0
* +-------+-------+-------+-------+-------+-------+-------+-------+
* 0 | vdev1 | GRID | ASIZE |
* +-------+-------+-------+-------+-------+-------+-------+-------+
* 1 |G| offset1 |
* +-------+-------+-------+-------+-------+-------+-------+-------+
* 2 | vdev2 | GRID | ASIZE |
* +-------+-------+-------+-------+-------+-------+-------+-------+
* 3 |G| offset2 |
* +-------+-------+-------+-------+-------+-------+-------+-------+
* 4 | vdev3 | GRID | ASIZE |
* +-------+-------+-------+-------+-------+-------+-------+-------+
* 5 |G| offset3 |
* +-------+-------+-------+-------+-------+-------+-------+-------+
* 6 |BDX|lvl| type | cksum | comp | PSIZE | LSIZE |
* +-------+-------+-------+-------+-------+-------+-------+-------+
* 7 | padding |
* +-------+-------+-------+-------+-------+-------+-------+-------+
* 8 | padding |
* +-------+-------+-------+-------+-------+-------+-------+-------+
* 9 | physical birth txg |
* +-------+-------+-------+-------+-------+-------+-------+-------+
* a | logical birth txg |
* +-------+-------+-------+-------+-------+-------+-------+-------+
* b | fill count |
* +-------+-------+-------+-------+-------+-------+-------+-------+
* c | checksum[0] |
* +-------+-------+-------+-------+-------+-------+-------+-------+
* d | checksum[1] |
* +-------+-------+-------+-------+-------+-------+-------+-------+
* e | checksum[2] |
* +-------+-------+-------+-------+-------+-------+-------+-------+
* f | checksum[3] |
* +-------+-------+-------+-------+-------+-------+-------+-------+
*
* Legend:
*
* vdev virtual device ID
* offset offset into virtual device
* LSIZE logical size
* PSIZE physical size (after compression)
* ASIZE allocated size (including RAID-Z parity and gang block headers)
* GRID RAID-Z layout information (reserved for future use)
* cksum checksum function
* comp compression function
* G gang block indicator
* B byteorder (endianness)
* D dedup
* X unused
* lvl level of indirection
* type DMU object type
* phys birth txg of block allocation; zero if same as logical birth txg
* log. birth transaction group in which the block was logically born
* fill count number of non-zero blocks under this bp
* checksum[4] 256-bit checksum of the data this bp describes
*/
#define SPA_BLKPTRSHIFT 7 /* blkptr_t is 128 bytes */
#define SPA_DVAS_PER_BP 3 /* Number of DVAs in a bp */
typedef struct blkptr {
dva_t blk_dva[SPA_DVAS_PER_BP]; /* Data Virtual Addresses */
grub_uint64_t blk_prop; /* size, compression, type, etc */
grub_uint64_t blk_pad[2]; /* Extra space for the future */
grub_uint64_t blk_phys_birth; /* txg when block was allocated */
grub_uint64_t blk_birth; /* transaction group at birth */
grub_uint64_t blk_fill; /* fill count */
zio_cksum_t blk_cksum; /* 256-bit checksum */
} blkptr_t;
/*
* Macros to get and set fields in a bp or DVA.
*/
#define DVA_GET_ASIZE(dva) \
BF64_GET_SB((dva)->dva_word[0], 0, 24, SPA_MINBLOCKSHIFT, 0)
#define DVA_SET_ASIZE(dva, x) \
BF64_SET_SB((dva)->dva_word[0], 0, 24, SPA_MINBLOCKSHIFT, 0, x)
#define DVA_GET_GRID(dva) BF64_GET((dva)->dva_word[0], 24, 8)
#define DVA_SET_GRID(dva, x) BF64_SET((dva)->dva_word[0], 24, 8, x)
#define DVA_GET_VDEV(dva) BF64_GET((dva)->dva_word[0], 32, 32)
#define DVA_SET_VDEV(dva, x) BF64_SET((dva)->dva_word[0], 32, 32, x)
#define DVA_GET_GANG(dva) BF64_GET((dva)->dva_word[1], 63, 1)
#define DVA_SET_GANG(dva, x) BF64_SET((dva)->dva_word[1], 63, 1, x)
#define BP_GET_LSIZE(bp) \
BF64_GET_SB((bp)->blk_prop, 0, 16, SPA_MINBLOCKSHIFT, 1)
#define BP_SET_LSIZE(bp, x) \
BF64_SET_SB((bp)->blk_prop, 0, 16, SPA_MINBLOCKSHIFT, 1, x)
#define BP_GET_COMPRESS(bp) BF64_GET((bp)->blk_prop, 32, 8)
#define BP_SET_COMPRESS(bp, x) BF64_SET((bp)->blk_prop, 32, 8, x)
#define BP_GET_CHECKSUM(bp) BF64_GET((bp)->blk_prop, 40, 8)
#define BP_SET_CHECKSUM(bp, x) BF64_SET((bp)->blk_prop, 40, 8, x)
#define BP_GET_TYPE(bp) BF64_GET((bp)->blk_prop, 48, 8)
#define BP_SET_TYPE(bp, x) BF64_SET((bp)->blk_prop, 48, 8, x)
#define BP_GET_LEVEL(bp) BF64_GET((bp)->blk_prop, 56, 5)
#define BP_SET_LEVEL(bp, x) BF64_SET((bp)->blk_prop, 56, 5, x)
#define BP_GET_PROP_BIT_61(bp) BF64_GET((bp)->blk_prop, 61, 1)
#define BP_SET_PROP_BIT_61(bp, x) BF64_SET((bp)->blk_prop, 61, 1, x)
#define BP_GET_DEDUP(bp) BF64_GET((bp)->blk_prop, 62, 1)
#define BP_SET_DEDUP(bp, x) BF64_SET((bp)->blk_prop, 62, 1, x)
#define BP_GET_BYTEORDER(bp) (0 - BF64_GET((bp)->blk_prop, 63, 1))
#define BP_SET_BYTEORDER(bp, x) BF64_SET((bp)->blk_prop, 63, 1, x)
#define BP_PHYSICAL_BIRTH(bp) \
((bp)->blk_phys_birth ? (bp)->blk_phys_birth : (bp)->blk_birth)
#define BP_SET_BIRTH(bp, logical, physical) \
{ \
(bp)->blk_birth = (logical); \
(bp)->blk_phys_birth = ((logical) == (physical) ? 0 : (physical)); \
}
#define BP_GET_ASIZE(bp) \
(DVA_GET_ASIZE(&(bp)->blk_dva[0]) + DVA_GET_ASIZE(&(bp)->blk_dva[1]) + \
DVA_GET_ASIZE(&(bp)->blk_dva[2]))
#define BP_GET_UCSIZE(bp) \
((BP_GET_LEVEL(bp) > 0 || dmu_ot[BP_GET_TYPE(bp)].ot_metadata) ? \
BP_GET_PSIZE(bp) : BP_GET_LSIZE(bp));
#define BP_GET_NDVAS(bp) \
(!!DVA_GET_ASIZE(&(bp)->blk_dva[0]) + \
!!DVA_GET_ASIZE(&(bp)->blk_dva[1]) + \
!!DVA_GET_ASIZE(&(bp)->blk_dva[2]))
#define BP_COUNT_GANG(bp) \
(DVA_GET_GANG(&(bp)->blk_dva[0]) + \
DVA_GET_GANG(&(bp)->blk_dva[1]) + \
DVA_GET_GANG(&(bp)->blk_dva[2]))
#define DVA_EQUAL(dva1, dva2) \
((dva1)->dva_word[1] == (dva2)->dva_word[1] && \
(dva1)->dva_word[0] == (dva2)->dva_word[0])
#define BP_EQUAL(bp1, bp2) \
(BP_PHYSICAL_BIRTH(bp1) == BP_PHYSICAL_BIRTH(bp2) && \
DVA_EQUAL(&(bp1)->blk_dva[0], &(bp2)->blk_dva[0]) && \
DVA_EQUAL(&(bp1)->blk_dva[1], &(bp2)->blk_dva[1]) && \
DVA_EQUAL(&(bp1)->blk_dva[2], &(bp2)->blk_dva[2]))
#define ZIO_CHECKSUM_EQUAL(zc1, zc2) \
(0 == (((zc1).zc_word[0] - (zc2).zc_word[0]) | \
((zc1).zc_word[1] - (zc2).zc_word[1]) | \
((zc1).zc_word[2] - (zc2).zc_word[2]) | \
((zc1).zc_word[3] - (zc2).zc_word[3])))
#define DVA_IS_VALID(dva) (DVA_GET_ASIZE(dva) != 0)
#define ZIO_SET_CHECKSUM(zcp, w0, w1, w2, w3) \
{ \
(zcp)->zc_word[0] = w0; \
(zcp)->zc_word[1] = w1; \
(zcp)->zc_word[2] = w2; \
(zcp)->zc_word[3] = w3; \
}
#define BP_IDENTITY(bp) (&(bp)->blk_dva[0])
#define BP_IS_GANG(bp) DVA_GET_GANG(BP_IDENTITY(bp))
#define BP_IS_HOLE(bp) ((bp)->blk_birth == 0)
/* BP_IS_RAIDZ(bp) assumes no block compression */
#define BP_IS_RAIDZ(bp) (DVA_GET_ASIZE(&(bp)->blk_dva[0]) > \
BP_GET_PSIZE(bp))
#define BP_ZERO(bp) \
{ \
(bp)->blk_dva[0].dva_word[0] = 0; \
(bp)->blk_dva[0].dva_word[1] = 0; \
(bp)->blk_dva[1].dva_word[0] = 0; \
(bp)->blk_dva[1].dva_word[1] = 0; \
(bp)->blk_dva[2].dva_word[0] = 0; \
(bp)->blk_dva[2].dva_word[1] = 0; \
(bp)->blk_prop = 0; \
(bp)->blk_pad[0] = 0; \
(bp)->blk_pad[1] = 0; \
(bp)->blk_phys_birth = 0; \
(bp)->blk_birth = 0; \
(bp)->blk_fill = 0; \
ZIO_SET_CHECKSUM(&(bp)->blk_cksum, 0, 0, 0, 0); \
}
#define BP_SPRINTF_LEN 320
#endif /* ! GRUB_ZFS_SPA_HEADER */

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/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 1999,2000,2001,2002,2003,2004 Free Software Foundation, Inc.
*
* GRUB is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* GRUB is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* Copyright 2010 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _SYS_UBERBLOCK_IMPL_H
#define _SYS_UBERBLOCK_IMPL_H
/*
* The uberblock version is incremented whenever an incompatible on-disk
* format change is made to the SPA, DMU, or ZAP.
*
* Note: the first two fields should never be moved. When a storage pool
* is opened, the uberblock must be read off the disk before the version
* can be checked. If the ub_version field is moved, we may not detect
* version mismatch. If the ub_magic field is moved, applications that
* expect the magic number in the first word won't work.
*/
#define UBERBLOCK_MAGIC 0x00bab10c /* oo-ba-bloc! */
#define UBERBLOCK_SHIFT 10 /* up to 1K */
typedef struct uberblock {
grub_uint64_t ub_magic; /* UBERBLOCK_MAGIC */
grub_uint64_t ub_version; /* ZFS_VERSION */
grub_uint64_t ub_txg; /* txg of last sync */
grub_uint64_t ub_guid_sum; /* sum of all vdev guids */
grub_uint64_t ub_timestamp; /* UTC time of last sync */
blkptr_t ub_rootbp; /* MOS objset_phys_t */
} uberblock_t;
#define UBERBLOCK_SIZE (1ULL << UBERBLOCK_SHIFT)
#define VDEV_UBERBLOCK_SHIFT UBERBLOCK_SHIFT
/* XXX Uberblock_phys_t is no longer in the kernel zfs */
typedef struct uberblock_phys {
uberblock_t ubp_uberblock;
char ubp_pad[UBERBLOCK_SIZE - sizeof (uberblock_t) -
sizeof (zio_eck_t)];
zio_eck_t ubp_zec;
} uberblock_phys_t;
#endif /* _SYS_UBERBLOCK_IMPL_H */

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/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 1999,2000,2001,2002,2003,2004 Free Software Foundation, Inc.
*
* GRUB is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* GRUB is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* Copyright 2010 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _SYS_VDEV_IMPL_H
#define _SYS_VDEV_IMPL_H
#define VDEV_SKIP_SIZE (8 << 10)
#define VDEV_BOOT_HEADER_SIZE (8 << 10)
#define VDEV_PHYS_SIZE (112 << 10)
#define VDEV_UBERBLOCK_RING (128 << 10)
/* ZFS boot block */
#define VDEV_BOOT_MAGIC 0x2f5b007b10cULL
#define VDEV_BOOT_VERSION 1 /* version number */
typedef struct vdev_boot_header {
grub_uint64_t vb_magic; /* VDEV_BOOT_MAGIC */
grub_uint64_t vb_version; /* VDEV_BOOT_VERSION */
grub_uint64_t vb_offset; /* start offset (bytes) */
grub_uint64_t vb_size; /* size (bytes) */
char vb_pad[VDEV_BOOT_HEADER_SIZE - 4 * sizeof (grub_uint64_t)];
} vdev_boot_header_t;
typedef struct vdev_phys {
char vp_nvlist[VDEV_PHYS_SIZE - sizeof (zio_eck_t)];
zio_eck_t vp_zbt;
} vdev_phys_t;
typedef struct vdev_label {
char vl_pad[VDEV_SKIP_SIZE]; /* 8K */
vdev_boot_header_t vl_boot_header; /* 8K */
vdev_phys_t vl_vdev_phys; /* 112K */
char vl_uberblock[VDEV_UBERBLOCK_RING]; /* 128K */
} vdev_label_t; /* 256K total */
/*
* Size and offset of embedded boot loader region on each label.
* The total size of the first two labels plus the boot area is 4MB.
*/
#define VDEV_BOOT_OFFSET (2 * sizeof (vdev_label_t))
#define VDEV_BOOT_SIZE (7ULL << 19) /* 3.5M */
/*
* Size of label regions at the start and end of each leaf device.
*/
#define VDEV_LABEL_START_SIZE (2 * sizeof (vdev_label_t) + VDEV_BOOT_SIZE)
#define VDEV_LABEL_END_SIZE (2 * sizeof (vdev_label_t))
#define VDEV_LABELS 4
#endif /* _SYS_VDEV_IMPL_H */

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/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 1999,2000,2001,2002,2003,2004 Free Software Foundation, Inc.
*
* GRUB is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* GRUB is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _SYS_ZAP_IMPL_H
#define _SYS_ZAP_IMPL_H
#define ZAP_MAGIC 0x2F52AB2ABULL
#define ZAP_HASHBITS 28
#define MZAP_ENT_LEN 64
#define MZAP_NAME_LEN (MZAP_ENT_LEN - 8 - 4 - 2)
#define MZAP_MAX_BLKSHIFT SPA_MAXBLOCKSHIFT
#define MZAP_MAX_BLKSZ (1 << MZAP_MAX_BLKSHIFT)
typedef struct mzap_ent_phys {
grub_uint64_t mze_value;
grub_uint32_t mze_cd;
grub_uint16_t mze_pad; /* in case we want to chain them someday */
char mze_name[MZAP_NAME_LEN];
} mzap_ent_phys_t;
typedef struct mzap_phys {
grub_uint64_t mz_block_type; /* ZBT_MICRO */
grub_uint64_t mz_salt;
grub_uint64_t mz_pad[6];
mzap_ent_phys_t mz_chunk[1];
/* actually variable size depending on block size */
} mzap_phys_t;
/*
* The (fat) zap is stored in one object. It is an array of
* 1<<FZAP_BLOCK_SHIFT byte blocks. The layout looks like one of:
*
* ptrtbl fits in first block:
* [zap_phys_t zap_ptrtbl_shift < 6] [zap_leaf_t] ...
*
* ptrtbl too big for first block:
* [zap_phys_t zap_ptrtbl_shift >= 6] [zap_leaf_t] [ptrtbl] ...
*
*/
#define ZBT_LEAF ((1ULL << 63) + 0)
#define ZBT_HEADER ((1ULL << 63) + 1)
#define ZBT_MICRO ((1ULL << 63) + 3)
/* any other values are ptrtbl blocks */
/*
* the embedded pointer table takes up half a block:
* block size / entry size (2^3) / 2
*/
#define ZAP_EMBEDDED_PTRTBL_SHIFT(zap) (FZAP_BLOCK_SHIFT(zap) - 3 - 1)
/*
* The embedded pointer table starts half-way through the block. Since
* the pointer table itself is half the block, it starts at (64-bit)
* word number (1<<ZAP_EMBEDDED_PTRTBL_SHIFT(zap)).
*/
#define ZAP_EMBEDDED_PTRTBL_ENT(zap, idx) \
((grub_uint64_t *)(zap)->zap_f.zap_phys) \
[(idx) + (1<<ZAP_EMBEDDED_PTRTBL_SHIFT(zap))]
/*
* TAKE NOTE:
* If zap_phys_t is modified, zap_byteswap() must be modified.
*/
typedef struct zap_phys {
grub_uint64_t zap_block_type; /* ZBT_HEADER */
grub_uint64_t zap_magic; /* ZAP_MAGIC */
struct zap_table_phys {
grub_uint64_t zt_blk; /* starting block number */
grub_uint64_t zt_numblks; /* number of blocks */
grub_uint64_t zt_shift; /* bits to index it */
grub_uint64_t zt_nextblk; /* next (larger) copy start block */
grub_uint64_t zt_blks_copied; /* number source blocks copied */
} zap_ptrtbl;
grub_uint64_t zap_freeblk; /* the next free block */
grub_uint64_t zap_num_leafs; /* number of leafs */
grub_uint64_t zap_num_entries; /* number of entries */
grub_uint64_t zap_salt; /* salt to stir into hash function */
grub_uint64_t zap_normflags; /* flags for u8_textprep_str() */
grub_uint64_t zap_flags; /* zap_flag_t */
/*
* This structure is followed by padding, and then the embedded
* pointer table. The embedded pointer table takes up second
* half of the block. It is accessed using the
* ZAP_EMBEDDED_PTRTBL_ENT() macro.
*/
} zap_phys_t;
#endif /* _SYS_ZAP_IMPL_H */

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/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 1999,2000,2001,2002,2003,2004 Free Software Foundation, Inc.
*
* GRUB is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* GRUB is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _SYS_ZAP_LEAF_H
#define _SYS_ZAP_LEAF_H
#define ZAP_LEAF_MAGIC 0x2AB1EAF
/* chunk size = 24 bytes */
#define ZAP_LEAF_CHUNKSIZE 24
/*
* The amount of space within the chunk available for the array is:
* chunk size - space for type (1) - space for next pointer (2)
*/
#define ZAP_LEAF_ARRAY_BYTES (ZAP_LEAF_CHUNKSIZE - 3)
typedef enum zap_chunk_type {
ZAP_CHUNK_FREE = 253,
ZAP_CHUNK_ENTRY = 252,
ZAP_CHUNK_ARRAY = 251,
ZAP_CHUNK_TYPE_MAX = 250
} zap_chunk_type_t;
/*
* TAKE NOTE:
* If zap_leaf_phys_t is modified, zap_leaf_byteswap() must be modified.
*/
typedef struct zap_leaf_phys {
struct zap_leaf_header {
grub_uint64_t lh_block_type; /* ZBT_LEAF */
grub_uint64_t lh_pad1;
grub_uint64_t lh_prefix; /* hash prefix of this leaf */
grub_uint32_t lh_magic; /* ZAP_LEAF_MAGIC */
grub_uint16_t lh_nfree; /* number free chunks */
grub_uint16_t lh_nentries; /* number of entries */
grub_uint16_t lh_prefix_len; /* num bits used to id this */
/* above is accessable to zap, below is zap_leaf private */
grub_uint16_t lh_freelist; /* chunk head of free list */
grub_uint8_t lh_pad2[12];
} l_hdr; /* 2 24-byte chunks */
/*
* The header is followed by a hash table with
* ZAP_LEAF_HASH_NUMENTRIES(zap) entries. The hash table is
* followed by an array of ZAP_LEAF_NUMCHUNKS(zap)
* zap_leaf_chunk structures. These structures are accessed
* with the ZAP_LEAF_CHUNK() macro.
*/
grub_uint16_t l_hash[1];
} zap_leaf_phys_t;
typedef union zap_leaf_chunk {
struct zap_leaf_entry {
grub_uint8_t le_type; /* always ZAP_CHUNK_ENTRY */
grub_uint8_t le_int_size; /* size of ints */
grub_uint16_t le_next; /* next entry in hash chain */
grub_uint16_t le_name_chunk; /* first chunk of the name */
grub_uint16_t le_name_length; /* bytes in name, incl null */
grub_uint16_t le_value_chunk; /* first chunk of the value */
grub_uint16_t le_value_length; /* value length in ints */
grub_uint32_t le_cd; /* collision differentiator */
grub_uint64_t le_hash; /* hash value of the name */
} l_entry;
struct zap_leaf_array {
grub_uint8_t la_type; /* always ZAP_CHUNK_ARRAY */
union
{
grub_uint8_t la_array[ZAP_LEAF_ARRAY_BYTES];
grub_uint64_t la_array64;
};
grub_uint16_t la_next; /* next blk or CHAIN_END */
} l_array;
struct zap_leaf_free {
grub_uint8_t lf_type; /* always ZAP_CHUNK_FREE */
grub_uint8_t lf_pad[ZAP_LEAF_ARRAY_BYTES];
grub_uint16_t lf_next; /* next in free list, or CHAIN_END */
} l_free;
} zap_leaf_chunk_t;
#endif /* _SYS_ZAP_LEAF_H */

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/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 1999,2000,2001,2002,2003,2004,2009 Free Software Foundation, Inc.
*
* GRUB is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* GRUB is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
*/
#ifndef GRUB_ZFS_HEADER
#define GRUB_ZFS_HEADER 1
#include <grub/err.h>
#include <grub/disk.h>
/*
* On-disk version number.
*/
#define SPA_VERSION 28ULL
/*
* The following are configuration names used in the nvlist describing a pool's
* configuration.
*/
#define ZPOOL_CONFIG_VERSION "version"
#define ZPOOL_CONFIG_POOL_NAME "name"
#define ZPOOL_CONFIG_POOL_STATE "state"
#define ZPOOL_CONFIG_POOL_TXG "txg"
#define ZPOOL_CONFIG_POOL_GUID "pool_guid"
#define ZPOOL_CONFIG_CREATE_TXG "create_txg"
#define ZPOOL_CONFIG_TOP_GUID "top_guid"
#define ZPOOL_CONFIG_VDEV_TREE "vdev_tree"
#define ZPOOL_CONFIG_TYPE "type"
#define ZPOOL_CONFIG_CHILDREN "children"
#define ZPOOL_CONFIG_ID "id"
#define ZPOOL_CONFIG_GUID "guid"
#define ZPOOL_CONFIG_PATH "path"
#define ZPOOL_CONFIG_DEVID "devid"
#define ZPOOL_CONFIG_METASLAB_ARRAY "metaslab_array"
#define ZPOOL_CONFIG_METASLAB_SHIFT "metaslab_shift"
#define ZPOOL_CONFIG_ASHIFT "ashift"
#define ZPOOL_CONFIG_ASIZE "asize"
#define ZPOOL_CONFIG_DTL "DTL"
#define ZPOOL_CONFIG_STATS "stats"
#define ZPOOL_CONFIG_WHOLE_DISK "whole_disk"
#define ZPOOL_CONFIG_ERRCOUNT "error_count"
#define ZPOOL_CONFIG_NOT_PRESENT "not_present"
#define ZPOOL_CONFIG_SPARES "spares"
#define ZPOOL_CONFIG_IS_SPARE "is_spare"
#define ZPOOL_CONFIG_NPARITY "nparity"
#define ZPOOL_CONFIG_PHYS_PATH "phys_path"
#define ZPOOL_CONFIG_L2CACHE "l2cache"
#define ZPOOL_CONFIG_HOLE_ARRAY "hole_array"
#define ZPOOL_CONFIG_VDEV_CHILDREN "vdev_children"
#define ZPOOL_CONFIG_IS_HOLE "is_hole"
#define ZPOOL_CONFIG_DDT_HISTOGRAM "ddt_histogram"
#define ZPOOL_CONFIG_DDT_OBJ_STATS "ddt_object_stats"
#define ZPOOL_CONFIG_DDT_STATS "ddt_stats"
/*
* The persistent vdev state is stored as separate values rather than a single
* 'vdev_state' entry. This is because a device can be in multiple states, such
* as offline and degraded.
*/
#define ZPOOL_CONFIG_OFFLINE "offline"
#define ZPOOL_CONFIG_FAULTED "faulted"
#define ZPOOL_CONFIG_DEGRADED "degraded"
#define ZPOOL_CONFIG_REMOVED "removed"
#define VDEV_TYPE_ROOT "root"
#define VDEV_TYPE_MIRROR "mirror"
#define VDEV_TYPE_REPLACING "replacing"
#define VDEV_TYPE_RAIDZ "raidz"
#define VDEV_TYPE_DISK "disk"
#define VDEV_TYPE_FILE "file"
#define VDEV_TYPE_MISSING "missing"
#define VDEV_TYPE_HOLE "hole"
#define VDEV_TYPE_SPARE "spare"
#define VDEV_TYPE_L2CACHE "l2cache"
/*
* pool state. The following states are written to disk as part of the normal
* SPA lifecycle: ACTIVE, EXPORTED, DESTROYED, SPARE, L2CACHE. The remaining
* states are software abstractions used at various levels to communicate pool
* state.
*/
typedef enum pool_state {
POOL_STATE_ACTIVE = 0, /* In active use */
POOL_STATE_EXPORTED, /* Explicitly exported */
POOL_STATE_DESTROYED, /* Explicitly destroyed */
POOL_STATE_SPARE, /* Reserved for hot spare use */
POOL_STATE_L2CACHE, /* Level 2 ARC device */
POOL_STATE_UNINITIALIZED, /* Internal spa_t state */
POOL_STATE_UNAVAIL, /* Internal libzfs state */
POOL_STATE_POTENTIALLY_ACTIVE /* Internal libzfs state */
} pool_state_t;
struct grub_zfs_data;
grub_err_t grub_zfs_fetch_nvlist (grub_device_t dev, char **nvlist);
grub_err_t grub_zfs_getmdnobj (grub_device_t dev, const char *fsfilename,
grub_uint64_t *mdnobj);
char *grub_zfs_nvlist_lookup_string (char *nvlist, char *name);
char *grub_zfs_nvlist_lookup_nvlist (char *nvlist, char *name);
int grub_zfs_nvlist_lookup_uint64 (char *nvlist, char *name,
grub_uint64_t *out);
char *grub_zfs_nvlist_lookup_nvlist_array (char *nvlist, char *name,
grub_size_t index);
int grub_zfs_nvlist_lookup_nvlist_array_get_nelm (char *nvlist, char *name);
#endif /* ! GRUB_ZFS_HEADER */

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/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 1999,2000,2001,2002,2003,2004 Free Software Foundation, Inc.
*
* GRUB is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* GRUB is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _SYS_FS_ZFS_ACL_H
#define _SYS_FS_ZFS_ACL_H
#ifndef _UID_T
#define _UID_T
typedef unsigned int uid_t; /* UID type */
#endif /* _UID_T */
typedef struct zfs_oldace {
grub_uint32_t z_fuid; /* "who" */
grub_uint32_t z_access_mask; /* access mask */
grub_uint16_t z_flags; /* flags, i.e inheritance */
grub_uint16_t z_type; /* type of entry allow/deny */
} zfs_oldace_t;
#define ACE_SLOT_CNT 6
typedef struct zfs_znode_acl_v0 {
grub_uint64_t z_acl_extern_obj; /* ext acl pieces */
grub_uint32_t z_acl_count; /* Number of ACEs */
grub_uint16_t z_acl_version; /* acl version */
grub_uint16_t z_acl_pad; /* pad */
zfs_oldace_t z_ace_data[ACE_SLOT_CNT]; /* 6 standard ACEs */
} zfs_znode_acl_v0_t;
#define ZFS_ACE_SPACE (sizeof (zfs_oldace_t) * ACE_SLOT_CNT)
typedef struct zfs_znode_acl {
grub_uint64_t z_acl_extern_obj; /* ext acl pieces */
grub_uint32_t z_acl_size; /* Number of bytes in ACL */
grub_uint16_t z_acl_version; /* acl version */
grub_uint16_t z_acl_count; /* ace count */
grub_uint8_t z_ace_data[ZFS_ACE_SPACE]; /* space for embedded ACEs */
} zfs_znode_acl_t;
#endif /* _SYS_FS_ZFS_ACL_H */

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/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 1999,2000,2001,2002,2003,2004 Free Software Foundation, Inc.
*
* GRUB is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* GRUB is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* Copyright 2010 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _SYS_FS_ZFS_ZNODE_H
#define _SYS_FS_ZFS_ZNODE_H
#include <grub/zfs/zfs_acl.h>
#define MASTER_NODE_OBJ 1
#define ZFS_ROOT_OBJ "ROOT"
#define ZPL_VERSION_STR "VERSION"
#define ZFS_SA_ATTRS "SA_ATTRS"
#define ZPL_VERSION 5ULL
#define ZFS_DIRENT_OBJ(de) BF64_GET(de, 0, 48)
/*
* This is the persistent portion of the znode. It is stored
* in the "bonus buffer" of the file. Short symbolic links
* are also stored in the bonus buffer.
*/
typedef struct znode_phys {
grub_uint64_t zp_atime[2]; /* 0 - last file access time */
grub_uint64_t zp_mtime[2]; /* 16 - last file modification time */
grub_uint64_t zp_ctime[2]; /* 32 - last file change time */
grub_uint64_t zp_crtime[2]; /* 48 - creation time */
grub_uint64_t zp_gen; /* 64 - generation (txg of creation) */
grub_uint64_t zp_mode; /* 72 - file mode bits */
grub_uint64_t zp_size; /* 80 - size of file */
grub_uint64_t zp_parent; /* 88 - directory parent (`..') */
grub_uint64_t zp_links; /* 96 - number of links to file */
grub_uint64_t zp_xattr; /* 104 - DMU object for xattrs */
grub_uint64_t zp_rdev; /* 112 - dev_t for VBLK & VCHR files */
grub_uint64_t zp_flags; /* 120 - persistent flags */
grub_uint64_t zp_uid; /* 128 - file owner */
grub_uint64_t zp_gid; /* 136 - owning group */
grub_uint64_t zp_pad[4]; /* 144 - future */
zfs_znode_acl_t zp_acl; /* 176 - 263 ACL */
/*
* Data may pad out any remaining bytes in the znode buffer, eg:
*
* |<---------------------- dnode_phys (512) ------------------------>|
* |<-- dnode (192) --->|<----------- "bonus" buffer (320) ---------->|
* |<---- znode (264) ---->|<---- data (56) ---->|
*
* At present, we only use this space to store symbolic links.
*/
} znode_phys_t;
#endif /* _SYS_FS_ZFS_ZNODE_H */

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/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 1999,2000,2001,2002,2003,2004 Free Software Foundation, Inc.
*
* GRUB is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* GRUB is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _SYS_ZIL_H
#define _SYS_ZIL_H
/*
* Intent log format:
*
* Each objset has its own intent log. The log header (zil_header_t)
* for objset N's intent log is kept in the Nth object of the SPA's
* intent_log objset. The log header points to a chain of log blocks,
* each of which contains log records (i.e., transactions) followed by
* a log block trailer (zil_trailer_t). The format of a log record
* depends on the record (or transaction) type, but all records begin
* with a common structure that defines the type, length, and txg.
*/
/*
* Intent log header - this on disk structure holds fields to manage
* the log. All fields are 64 bit to easily handle cross architectures.
*/
typedef struct zil_header {
grub_uint64_t zh_claim_txg; /* txg in which log blocks were claimed */
grub_uint64_t zh_replay_seq; /* highest replayed sequence number */
blkptr_t zh_log; /* log chain */
grub_uint64_t zh_claim_seq; /* highest claimed sequence number */
grub_uint64_t zh_flags; /* header flags */
grub_uint64_t zh_pad[4];
} zil_header_t;
/*
* zh_flags bit settings
*/
#define ZIL_REPLAY_NEEDED 0x1 /* replay needed - internal only */
#endif /* _SYS_ZIL_H */

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/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 1999,2000,2001,2002,2003,2004 Free Software Foundation, Inc.
*
* GRUB is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* GRUB is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* Copyright 2010 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _ZIO_H
#define _ZIO_H
#include <grub/zfs/spa.h>
#define ZEC_MAGIC 0x210da7ab10c7a11ULL /* zio data bloc tail */
typedef struct zio_eck {
grub_uint64_t zec_magic; /* for validation, endianness */
zio_cksum_t zec_cksum; /* 256-bit checksum */
} zio_eck_t;
/*
* Gang block headers are self-checksumming and contain an array
* of block pointers.
*/
#define SPA_GANGBLOCKSIZE SPA_MINBLOCKSIZE
#define SPA_GBH_NBLKPTRS ((SPA_GANGBLOCKSIZE - \
sizeof (zio_eck_t)) / sizeof (blkptr_t))
#define SPA_GBH_FILLER ((SPA_GANGBLOCKSIZE - \
sizeof (zio_eck_t) - \
(SPA_GBH_NBLKPTRS * sizeof (blkptr_t))) /\
sizeof (grub_uint64_t))
#define ZIO_GET_IOSIZE(zio) \
(BP_IS_GANG((zio)->io_bp) ? \
SPA_GANGBLOCKSIZE : BP_GET_PSIZE((zio)->io_bp))
typedef struct zio_gbh {
blkptr_t zg_blkptr[SPA_GBH_NBLKPTRS];
grub_uint64_t zg_filler[SPA_GBH_FILLER];
zio_eck_t zg_tail;
} zio_gbh_phys_t;
enum zio_checksum {
ZIO_CHECKSUM_INHERIT = 0,
ZIO_CHECKSUM_ON,
ZIO_CHECKSUM_OFF,
ZIO_CHECKSUM_LABEL,
ZIO_CHECKSUM_GANG_HEADER,
ZIO_CHECKSUM_ZILOG,
ZIO_CHECKSUM_FLETCHER_2,
ZIO_CHECKSUM_FLETCHER_4,
ZIO_CHECKSUM_SHA256,
ZIO_CHECKSUM_ZILOG2,
ZIO_CHECKSUM_FUNCTIONS
};
#define ZIO_CHECKSUM_ON_VALUE ZIO_CHECKSUM_FLETCHER_2
#define ZIO_CHECKSUM_DEFAULT ZIO_CHECKSUM_ON
enum zio_compress {
ZIO_COMPRESS_INHERIT = 0,
ZIO_COMPRESS_ON,
ZIO_COMPRESS_OFF,
ZIO_COMPRESS_LZJB,
ZIO_COMPRESS_EMPTY,
ZIO_COMPRESS_GZIP,
ZIO_COMPRESS_FUNCTIONS
};
#endif /* _ZIO_H */

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/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 1999,2000,2001,2002,2003,2004 Free Software Foundation, Inc.
*
* GRUB is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* GRUB is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* Copyright 2010 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _SYS_ZIO_CHECKSUM_H
#define _SYS_ZIO_CHECKSUM_H
/*
* Signature for checksum functions.
*/
typedef void zio_checksum_t(const void *data, grub_uint64_t size,
grub_zfs_endian_t endian, zio_cksum_t *zcp);
/*
* Information about each checksum function.
*/
typedef struct zio_checksum_info {
zio_checksum_t *ci_func; /* checksum function for each byteorder */
int ci_correctable; /* number of correctable bits */
int ci_eck; /* uses zio embedded checksum? */
char *ci_name; /* descriptive name */
} zio_checksum_info_t;
extern void zio_checksum_SHA256 (const void *, grub_uint64_t,
grub_zfs_endian_t endian, zio_cksum_t *);
extern void fletcher_2 (const void *, grub_uint64_t, grub_zfs_endian_t endian,
zio_cksum_t *);
extern void fletcher_4 (const void *, grub_uint64_t, grub_zfs_endian_t endian,
zio_cksum_t *);
#endif /* _SYS_ZIO_CHECKSUM_H */