mirror of
https://github.com/kdave/btrfs-progs
synced 2024-12-29 01:22:13 +00:00
114 lines
2.9 KiB
C
114 lines
2.9 KiB
C
/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License v2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 021110-1307, USA.
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*/
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#ifndef __BTRFS_CONVERT_SOURCE_EXT2_H__
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#define __BTRFS_CONVERT_SOURCE_EXT2_H__
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#if BTRFSCONVERT_EXT2
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#include "kerncompat.h"
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#include <ext2fs/ext2_fs.h>
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#include <ext2fs/ext2fs.h>
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#include <ext2fs/ext2_ext_attr.h>
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#include "convert/source-fs.h"
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#define INO_OFFSET (BTRFS_FIRST_FREE_OBJECTID - EXT2_ROOT_INO)
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/*
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* Compatibility code for e2fsprogs 1.41 which doesn't support RO compat flag
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* BIGALLOC.
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* Unlike normal RO compat flag, BIGALLOC affects how e2fsprogs check used
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* space, and btrfs-convert heavily relies on it.
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*/
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#ifdef HAVE_OLD_E2FSPROGS
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#define EXT2FS_CLUSTER_RATIO(fs) (1)
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#define EXT2_CLUSTERS_PER_GROUP(s) (EXT2_BLOCKS_PER_GROUP(s))
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#define EXT2FS_B2C(fs, blk) (blk)
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#endif
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/*
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* Following xattr/acl related codes are based on codes in
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* fs/ext3/xattr.c and fs/ext3/acl.c
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*/
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#define EXT2_XATTR_BHDR(ptr) ((struct ext2_ext_attr_header *)(ptr))
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#define EXT2_XATTR_BFIRST(ptr) \
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((struct ext2_ext_attr_entry *)(EXT2_XATTR_BHDR(ptr) + 1))
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#define EXT2_XATTR_IHDR(inode) \
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((struct ext2_ext_attr_header *) ((void *)(inode) + \
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EXT2_GOOD_OLD_INODE_SIZE + (inode)->i_extra_isize))
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#define EXT2_XATTR_IFIRST(inode) \
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((struct ext2_ext_attr_entry *) ((void *)EXT2_XATTR_IHDR(inode) + \
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sizeof(EXT2_XATTR_IHDR(inode)->h_magic)))
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struct dir_iterate_data {
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struct btrfs_trans_handle *trans;
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struct btrfs_root *root;
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struct btrfs_inode_item *inode;
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u64 objectid;
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u64 index_cnt;
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u64 parent;
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int errcode;
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};
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#define EXT2_ACL_VERSION 0x0001
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/* 23.2.5 acl_tag_t values */
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#define ACL_UNDEFINED_TAG (0x00)
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#define ACL_USER_OBJ (0x01)
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#define ACL_USER (0x02)
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#define ACL_GROUP_OBJ (0x04)
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#define ACL_GROUP (0x08)
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#define ACL_MASK (0x10)
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#define ACL_OTHER (0x20)
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/* 23.2.7 ACL qualifier constants */
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#define ACL_UNDEFINED_ID ((id_t)-1)
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typedef struct {
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__le16 e_tag;
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__le16 e_perm;
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__le32 e_id;
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} ext2_acl_entry;
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typedef struct {
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__le16 e_tag;
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__le16 e_perm;
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} ext2_acl_entry_short;
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typedef struct {
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__le32 a_version;
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} ext2_acl_header;
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#define ACL_EA_VERSION 0x0002
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typedef struct {
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__le16 e_tag;
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__le16 e_perm;
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__le32 e_id;
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} acl_ea_entry;
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typedef struct {
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__le32 a_version;
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acl_ea_entry a_entries[0];
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} acl_ea_header;
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#endif /* BTRFSCONVERT_EXT2 */
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#endif
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