xref: /openbmc/linux/fs/adfs/dir_fplus.h (revision 55fd7e02)
1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  *  linux/fs/adfs/dir_fplus.h
4  *
5  *  Copyright (C) 1999 Russell King
6  *
7  *  Structures of directories on the F+ format disk
8  */
9 
10 #define ADFS_FPLUS_NAME_LEN	255
11 
12 #define BIGDIRSTARTNAME ('S' | 'B' << 8 | 'P' << 16 | 'r' << 24)
13 #define BIGDIRENDNAME	('o' | 'v' << 8 | 'e' << 16 | 'n' << 24)
14 
15 struct adfs_bigdirheader {
16 	__u8	startmasseq;
17 	__u8	bigdirversion[3];
18 	__le32	bigdirstartname;
19 	__le32	bigdirnamelen;
20 	__le32	bigdirsize;
21 	__le32	bigdirentries;
22 	__le32	bigdirnamesize;
23 	__le32	bigdirparent;
24 	char	bigdirname[1];
25 } __attribute__((packed, aligned(4)));
26 
27 struct adfs_bigdirentry {
28 	__le32	bigdirload;
29 	__le32	bigdirexec;
30 	__le32	bigdirlen;
31 	__le32	bigdirindaddr;
32 	__le32	bigdirattr;
33 	__le32	bigdirobnamelen;
34 	__le32	bigdirobnameptr;
35 } __attribute__((packed, aligned(4)));
36 
37 struct adfs_bigdirtail {
38 	__le32	bigdirendname;
39 	__u8	bigdirendmasseq;
40 	__u8	reserved[2];
41 	__u8	bigdircheckbyte;
42 } __attribute__((packed, aligned(4)));
43