1 files changed, 71 insertions, 0 deletions
diff --git a/include/grub/btrfs.h b/include/grub/btrfs.h
new file mode 100644
index 0000000..9d93fb6
--- /dev/null
+++ b/include/grub/btrfs.h
@@ -0,0 +1,71 @@
+/* btrfs.c - B-tree file system.  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2010,2011,2012,2013  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/>.
+ */
+
+#ifndef GRUB_BTRFS_H
+#define GRUB_BTRFS_H	1
+
+enum
+  {
+    GRUB_BTRFS_ITEM_TYPE_INODE_ITEM = 0x01,
+    GRUB_BTRFS_ITEM_TYPE_INODE_REF = 0x0c,
+    GRUB_BTRFS_ITEM_TYPE_DIR_ITEM = 0x54,
+    GRUB_BTRFS_ITEM_TYPE_EXTENT_ITEM = 0x6c,
+    GRUB_BTRFS_ITEM_TYPE_ROOT_ITEM = 0x84,
+    GRUB_BTRFS_ITEM_TYPE_ROOT_BACKREF = 0x90,
+    GRUB_BTRFS_ITEM_TYPE_DEVICE = 0xd8,
+    GRUB_BTRFS_ITEM_TYPE_CHUNK = 0xe4
+  };
+
+enum
+  {
+    GRUB_BTRFS_ROOT_VOL_OBJECTID = 5,
+    GRUB_BTRFS_TREE_ROOT_OBJECTID = 0x100,
+  };
+
+struct grub_btrfs_root_item
+{
+  grub_uint8_t dummy[0xb0];
+  grub_uint64_t tree;
+  grub_uint64_t inode;
+};
+
+struct grub_btrfs_key
+{
+  grub_uint64_t object_id;
+  grub_uint8_t type;
+  grub_uint64_t offset;
+} GRUB_PACKED;
+
+
+struct grub_btrfs_root_backref
+{
+  grub_uint64_t inode_id;
+  grub_uint64_t seqnr;
+  grub_uint16_t n;
+  char name[0];
+};
+
+struct grub_btrfs_inode_ref
+{
+  grub_uint64_t idxid;
+  grub_uint16_t n;
+  char name[0];
+};
+
+#endif