zfs: Add ZFS filesystem support

[u-boot] / include / zfs / zfs_znode.h

diff --git a/include/zfs/zfs_znode.h b/include/zfs/zfs_znode.h
new file mode 100644 (file)
index 0000000..2267aca
--- /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 */