From 6e7a315eb67cb6c113cf37e1d66c4f11a51a2b3e Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 18:29:51 +0200 Subject: Adding upstream version 2.06. Signed-off-by: Daniel Baumann --- include/grub/btrfs.h | 71 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 71 insertions(+) create mode 100644 include/grub/btrfs.h (limited to 'include/grub/btrfs.h') 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 . + */ + +#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 -- cgit v1.2.3