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authorJorgen Lundman <lundman@lundman.net>2012-07-19 20:48:25 +0000
committerWolfgang Denk <wd@denx.de>2012-08-09 23:42:20 +0200
commit4d3c95f5ea7c737a21cd6b9c59435ee693b3f127 (patch)
treed11c09245a46d3b0a55c0937874fb2debcb96490 /include/zfs/zfs_znode.h
parent753ac610880e6e563d0384bb114f8b41df89e520 (diff)
zfs: Add ZFS filesystem support
U-Boot port is based on sources forked from GRUB-0.97 by Sun in 2004, which can be found here: http://src.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/grub/grub-0.97/stage2/zfs-include/zfs.h Released by Sun for GRUB under the license: * This program 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 2 of the License, or * (at your option) any later version. GRUB official releases include ZFS in version: ftp://alpha.gnu.org/gnu/grub/grub-1.99~rc1.tar.gz And patched against GRUB Bazaar repository for ashift fixes (4KB HDDs) more conveniently found at github: https://github.com/pendor/grub-zfs/commit/e7b6ef3ac3b9685ac4c394c897b1d4221b7381f1 Signed-off-by: Jorgen Lundman <lundman@lundman.net>
Diffstat (limited to 'include/zfs/zfs_znode.h')
-rw-r--r--include/zfs/zfs_znode.h71
1 files changed, 71 insertions, 0 deletions
diff --git a/include/zfs/zfs_znode.h b/include/zfs/zfs_znode.h
new file mode 100644
index 0000000000..2267acafe5
--- /dev/null
+++ b/include/zfs/zfs_znode.h
@@ -0,0 +1,71 @@
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 1999,2000,2001,2002,2003,2004 Free Software Foundation, Inc.
+ *
+ * This program 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 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+/*
+ * 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 <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 {
+ uint64_t zp_atime[2]; /* 0 - last file access time */
+ uint64_t zp_mtime[2]; /* 16 - last file modification time */
+ uint64_t zp_ctime[2]; /* 32 - last file change time */
+ uint64_t zp_crtime[2]; /* 48 - creation time */
+ uint64_t zp_gen; /* 64 - generation (txg of creation) */
+ uint64_t zp_mode; /* 72 - file mode bits */
+ uint64_t zp_size; /* 80 - size of file */
+ uint64_t zp_parent; /* 88 - directory parent (`..') */
+ uint64_t zp_links; /* 96 - number of links to file */
+ uint64_t zp_xattr; /* 104 - DMU object for xattrs */
+ uint64_t zp_rdev; /* 112 - dev_t for VBLK & VCHR files */
+ uint64_t zp_flags; /* 120 - persistent flags */
+ uint64_t zp_uid; /* 128 - file owner */
+ uint64_t zp_gid; /* 136 - owning group */
+ 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 */