[thirdparty/xfsprogs-dev.git] / libdisk / fstype.h

/*
 * Copyright (c) 2000-2001 Silicon Graphics, Inc.  All Rights Reserved.
 * 
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 * 
 * This program is distributed in the hope that it would be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * 
 * Further, this software is distributed without any warranty that it is
 * free of the rightful claim of any third person regarding infringement
 * or the like.  Any license provided herein, whether implied or
 * otherwise, applies only to this software file.  Patent licenses, if
 * any, provided herein do not apply to combinations of this program with
 * other software, or any other product whatsoever.
 * 
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write the Free Software Foundation, Inc., 59
 * Temple Place - Suite 330, Boston MA 02111-1307, USA.
 * 
 * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
 * Mountain View, CA  94043, or:
 * 
 * http://www.sgi.com 
 * 
 * For further information regarding this notice, see: 
 * 
 * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
 */

#undef XFS_SUPER_MAGIC

/*
 * From mount(8) source by Andries Brouwer.  Hacked for XFS by mkp.
 * Recent sync's to mount source:
 *      - util-linux-2.10o ... 06 Sep 00
 *      - util-linux-2.10r ... 06 Dec 00
 *      - util-linux-2.11g ... 02 Jul 01
 */

/* Including <linux/fs.h> became more and more painful.
   Below a very abbreviated version of some declarations,
   only designed to be able to check a magic number
   in case no filesystem type was given. */

#define MINIX_SUPER_MAGIC   0x137F         /* original minix fs */
#define MINIX_SUPER_MAGIC2  0x138F         /* minix fs, 30 char names */
struct minix_super_block {
	u_char   s_dummy[16];
	u_char   s_magic[2];
};
#define minixmagic(s)	((uint) s.s_magic[0] + (((uint) s.s_magic[1]) << 8))

#define ISODCL(from, to) (to - from + 1)
#define ISO_STANDARD_ID "CD001"
struct iso_volume_descriptor {
	char type[ISODCL(1,1)]; /* 711 */
	char id[ISODCL(2,6)];
	char version[ISODCL(7,7)];
	char data[ISODCL(8,2048)];
};

#define HS_STANDARD_ID "CDROM"
struct  hs_volume_descriptor {
	char foo[ISODCL (  1,   8)]; /* 733 */
	char type[ISODCL (  9,   9)]; /* 711 */
	char id[ISODCL ( 10,  14)];
	char version[ISODCL ( 15,  15)]; /* 711 */
	char data[ISODCL(16,2048)];
};

#define EXT_SUPER_MAGIC 0x137D
struct ext_super_block {
	u_char   s_dummy[56];
	u_char   s_magic[2];
};
#define extmagic(s)	((uint) s.s_magic[0] + (((uint) s.s_magic[1]) << 8))

#define EXT2_PRE_02B_MAGIC  0xEF51
#define EXT2_SUPER_MAGIC    0xEF53
#define EXT3_FEATURE_COMPAT_HAS_JOURNAL 0x0004
struct ext2_super_block {
	u_char 	s_dummy1[56];
	u_char 	s_magic[2];
	u_char	s_dummy2[34];
	u_char	s_feature_compat[4];
	u_char	s_feature_incompat[4];
	u_char	s_feature_ro_compat[4];
	u_char	s_uuid[16];
	u_char 	s_volume_name[16];
	u_char	s_dummy3[88];
	u_char	s_journal_inum[4];	/* ext3 only */
};
#define ext2magic(s)	((uint) s.s_magic[0] + (((uint) s.s_magic[1]) << 8))

struct reiserfs_super_block
{
	u_char		s_block_count[4];
	u_char		s_free_blocks[4];
	u_char		s_root_block[4];
	u_char		s_journal_block[4];
	u_char		s_journal_dev[4];
	u_char		s_orig_journal_size[4];
	u_char		s_journal_trans_max[4];
	u_char		s_journal_block_count[4];
	u_char		s_journal_max_batch[4];
	u_char		s_journal_max_commit_age[4];
	u_char		s_journal_max_trans_age[4];
	u_char		s_blocksize[2];
	u_char		s_oid_maxsize[2];
	u_char		s_oid_cursize[2];
	u_char		s_state[2];
	u_char		s_magic[12];
};
#define REISERFS_SUPER_MAGIC_STRING "ReIsErFs"
#define REISER2FS_SUPER_MAGIC_STRING "ReIsEr2Fs"
#define REISERFS_DISK_OFFSET_IN_BYTES (64 * 1024)
/* the spot for the super in versions 3.5 - 3.5.10 (inclusive) */
#define REISERFS_OLD_DISK_OFFSET_IN_BYTES (8 * 1024)

#define _XIAFS_SUPER_MAGIC 0x012FD16D
struct xiafs_super_block {
    u_char     s_boot_segment[512];     /*  1st sector reserved for boot */
    u_char     s_dummy[60];
    u_char     s_magic[4];
};
#define xiafsmagic(s)	((uint) s.s_magic[0] + (((uint) s.s_magic[1]) << 8) + \
			(((uint) s.s_magic[2]) << 16) + \
			(((uint) s.s_magic[3]) << 24))

/* From jj@sunsite.ms.mff.cuni.cz Mon Mar 23 15:19:05 1998 */
#define UFS_SUPER_MAGIC 0x00011954
struct ufs_super_block {
    u_char     s_dummy[0x55c];
    u_char     s_magic[4];
};
#define ufsmagic(s)	((uint) s.s_magic[0] + (((uint) s.s_magic[1]) << 8) + \
			 (((uint) s.s_magic[2]) << 16) + \
			 (((uint) s.s_magic[3]) << 24))

/* From Richard.Russon@ait.co.uk Wed Feb 24 08:05:27 1999 */
#define NTFS_SUPER_MAGIC "NTFS"
struct ntfs_super_block {
    u_char    s_dummy[3];
    u_char    s_magic[4];
};

/* From inspection of a few FAT filesystems - aeb */
/* Unfortunately I find almost the same thing on an extended partition;
   it looks like a primary has some directory entries where the extended
   has a partition table: IO.SYS, MSDOS.SYS, WINBOOT.SYS */
struct fat_super_block {
    u_char    s_dummy[3];
    u_char    s_os[8];		/* "MSDOS5.0" or "MSWIN4.0" or "MSWIN4.1" */
				/* mtools-3.9.4 writes "MTOOL394" */
    u_char    s_dummy2[32];
    u_char    s_label[11];	/* for DOS? */
    u_char    s_fs[8];		/* "FAT12   " or "FAT16   " or all zero   */
                                /* OS/2 BM has "FAT     " here. */
    u_char    s_dummy3[9];
    u_char    s_label2[11];	/* for Windows? */
    u_char    s_fs2[8];	        /* garbage or "FAT32   " */
};

#define XFS_SUPER_MAGIC "XFSB"
struct xfs_super_block {
    u_char    s_magic[4];
    u_char    s_dummy[28];
    u_char    s_uuid[16];
    u_char    s_dummy2[60];
    u_char    s_fname[12];
};

#define CRAMFS_SUPER_MAGIC 0x28cd3d45
struct cramfs_super_block {
	u_char    s_magic[4];
	u_char    s_dummy[12];
	u_char    s_id[16];
};
#define cramfsmagic(s)	((uint) s.s_magic[0] + (((uint) s.s_magic[1]) << 8) + \
			 (((uint) s.s_magic[2]) << 16) + \
			 (((uint) s.s_magic[3]) << 24))

#define HFS_SUPER_MAGIC 0x4244
struct hfs_super_block {
	u_char    s_magic[2];
	u_char    s_dummy[18];
	u_char    s_blksize[4];
};
#define hfsmagic(s)	((uint) s.s_magic[0] + (((uint) s.s_magic[1]) << 8))
#define hfsblksize(s)	((uint) s.s_blksize[0] + \
			 (((uint) s.s_blksize[1]) << 8) + \
			 (((uint) s.s_blksize[2]) << 16) + \
			 (((uint) s.s_blksize[3]) << 24))

#define HPFS_SUPER_MAGIC 0xf995e849
struct hpfs_super_block {
	u_char    s_magic[4];
	u_char    s_magic2[4];
};
#define hpfsmagic(s)	((uint) s.s_magic[0] + (((uint) s.s_magic[1]) << 8) + \
			 (((uint) s.s_magic[2]) << 16) + \
			 (((uint) s.s_magic[3]) << 24))

struct adfs_super_block {
	u_char    s_dummy[448];
	u_char    s_blksize[1];
	u_char    s_dummy2[62];
	u_char    s_checksum[1];
};
#define adfsblksize(s)	((uint) s.s_blksize[0])
Commit	Line	Data
f937adac	1	/*
0d3e0b37	2	* Copyright (c) 2000-2001 Silicon Graphics, Inc. All Rights Reserved.
f937adac NS	3	*
	4	* This program is free software; you can redistribute it and/or modify it
	5	* under the terms of version 2 of the GNU General Public License as
	6	* published by the Free Software Foundation.
	7	*
	8	* This program is distributed in the hope that it would be useful, but
	9	* WITHOUT ANY WARRANTY; without even the implied warranty of
	10	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
	11	*
	12	* Further, this software is distributed without any warranty that it is
	13	* free of the rightful claim of any third person regarding infringement
	14	* or the like. Any license provided herein, whether implied or
	15	* otherwise, applies only to this software file. Patent licenses, if
	16	* any, provided herein do not apply to combinations of this program with
	17	* other software, or any other product whatsoever.
	18	*
	19	* You should have received a copy of the GNU General Public License along
	20	* with this program; if not, write the Free Software Foundation, Inc., 59
	21	* Temple Place - Suite 330, Boston MA 02111-1307, USA.
	22	*
	23	* Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
	24	* Mountain View, CA 94043, or:
	25	*
	26	* http://www.sgi.com
	27	*
	28	* For further information regarding this notice, see:
	29	*
	30	* http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
	31	*/
	32
	33	#undef XFS_SUPER_MAGIC
	34
	35	/*
	36	* From mount(8) source by Andries Brouwer. Hacked for XFS by mkp.
	37	* Recent sync's to mount source:
	38	* - util-linux-2.10o ... 06 Sep 00
	39	* - util-linux-2.10r ... 06 Dec 00
	40	* - util-linux-2.11g ... 02 Jul 01
	41	*/
	42
	43	/* Including <linux/fs.h> became more and more painful.
	44	Below a very abbreviated version of some declarations,
	45	only designed to be able to check a magic number
	46	in case no filesystem type was given. */
	47
	48	#define MINIX_SUPER_MAGIC 0x137F /* original minix fs */
	49	#define MINIX_SUPER_MAGIC2 0x138F /* minix fs, 30 char names */
	50	struct minix_super_block {
	51	u_char s_dummy[16];
	52	u_char s_magic[2];
	53	};
	54	#define minixmagic(s) ((uint) s.s_magic[0] + (((uint) s.s_magic[1]) << 8))
	55
	56	#define ISODCL(from, to) (to - from + 1)
	57	#define ISO_STANDARD_ID "CD001"
	58	struct iso_volume_descriptor {
	59	char type[ISODCL(1,1)]; /* 711 */
	60	char id[ISODCL(2,6)];
	61	char version[ISODCL(7,7)];
	62	char data[ISODCL(8,2048)];
	63	};
	64
	65	#define HS_STANDARD_ID "CDROM"
	66	struct hs_volume_descriptor {
67	char foo[ISODCL ( 1, 8)]; /* 733 */
68	char type[ISODCL ( 9, 9)]; /* 711 */
69	char id[ISODCL ( 10, 14)];
70	char version[ISODCL ( 15, 15)]; /* 711 */
71	char data[ISODCL(16,2048)];
72	};
73
74	#define EXT_SUPER_MAGIC 0x137D
75	struct ext_super_block {
76	u_char s_dummy[56];
77	u_char s_magic[2];
78	};
79	#define extmagic(s) ((uint) s.s_magic[0] + (((uint) s.s_magic[1]) << 8))
80
81	#define EXT2_PRE_02B_MAGIC 0xEF51
82	#define EXT2_SUPER_MAGIC 0xEF53
83	#define EXT3_FEATURE_COMPAT_HAS_JOURNAL 0x0004
84	struct ext2_super_block {
85	u_char s_dummy1[56];
86	u_char s_magic[2];
87	u_char s_dummy2[34];
88	u_char s_feature_compat[4];
89	u_char s_feature_incompat[4];
90	u_char s_feature_ro_compat[4];
91	u_char s_uuid[16];
92	u_char s_volume_name[16];
93	u_char s_dummy3[88];
94	u_char s_journal_inum[4]; /* ext3 only */
95	};
96	#define ext2magic(s) ((uint) s.s_magic[0] + (((uint) s.s_magic[1]) << 8))
97
98	struct reiserfs_super_block
99	{
100	u_char s_block_count[4];
101	u_char s_free_blocks[4];
102	u_char s_root_block[4];
103	u_char s_journal_block[4];
104	u_char s_journal_dev[4];
105	u_char s_orig_journal_size[4];
106	u_char s_journal_trans_max[4];
107	u_char s_journal_block_count[4];
108	u_char s_journal_max_batch[4];
109	u_char s_journal_max_commit_age[4];
110	u_char s_journal_max_trans_age[4];
111	u_char s_blocksize[2];
112	u_char s_oid_maxsize[2];
113	u_char s_oid_cursize[2];
114	u_char s_state[2];
115	u_char s_magic[12];
116	};
117	#define REISERFS_SUPER_MAGIC_STRING "ReIsErFs"
118	#define REISER2FS_SUPER_MAGIC_STRING "ReIsEr2Fs"
119	#define REISERFS_DISK_OFFSET_IN_BYTES (64 * 1024)
120	/* the spot for the super in versions 3.5 - 3.5.10 (inclusive) */
121	#define REISERFS_OLD_DISK_OFFSET_IN_BYTES (8 * 1024)
122
123	#define _XIAFS_SUPER_MAGIC 0x012FD16D
124	struct xiafs_super_block {
125	u_char s_boot_segment[512]; /* 1st sector reserved for boot */
126	u_char s_dummy[60];
127	u_char s_magic[4];
128	};
129	#define xiafsmagic(s) ((uint) s.s_magic[0] + (((uint) s.s_magic[1]) << 8) + \
130	(((uint) s.s_magic[2]) << 16) + \
131	(((uint) s.s_magic[3]) << 24))
132
133	/* From jj@sunsite.ms.mff.cuni.cz Mon Mar 23 15:19:05 1998 */
134	#define UFS_SUPER_MAGIC 0x00011954
135	struct ufs_super_block {
136	u_char s_dummy[0x55c];
137	u_char s_magic[4];
138	};
139	#define ufsmagic(s) ((uint) s.s_magic[0] + (((uint) s.s_magic[1]) << 8) + \
140	(((uint) s.s_magic[2]) << 16) + \
141	(((uint) s.s_magic[3]) << 24))
142
143	/* From Richard.Russon@ait.co.uk Wed Feb 24 08:05:27 1999 */
144	#define NTFS_SUPER_MAGIC "NTFS"
145	struct ntfs_super_block {
146	u_char s_dummy[3];
147	u_char s_magic[4];
148	};
149
150	/* From inspection of a few FAT filesystems - aeb */
151	/* Unfortunately I find almost the same thing on an extended partition;
152	it looks like a primary has some directory entries where the extended
153	has a partition table: IO.SYS, MSDOS.SYS, WINBOOT.SYS */
154	struct fat_super_block {
155	u_char s_dummy[3];
156	u_char s_os[8]; /* "MSDOS5.0" or "MSWIN4.0" or "MSWIN4.1" */
157	/* mtools-3.9.4 writes "MTOOL394" */
158	u_char s_dummy2[32];
159	u_char s_label[11]; /* for DOS? */
160	u_char s_fs[8]; /* "FAT12 " or "FAT16 " or all zero */
161	/* OS/2 BM has "FAT " here. */
162	u_char s_dummy3[9];
163	u_char s_label2[11]; /* for Windows? */
164	u_char s_fs2[8]; /* garbage or "FAT32 " */
165	};
166
167	#define XFS_SUPER_MAGIC "XFSB"
168	struct xfs_super_block {
169	u_char s_magic[4];
170	u_char s_dummy[28];
171	u_char s_uuid[16];
172	u_char s_dummy2[60];
173	u_char s_fname[12];
174	};
175
176	#define CRAMFS_SUPER_MAGIC 0x28cd3d45
177	struct cramfs_super_block {
178	u_char s_magic[4];
179	u_char s_dummy[12];
180	u_char s_id[16];
181	};
182	#define cramfsmagic(s) ((uint) s.s_magic[0] + (((uint) s.s_magic[1]) << 8) + \
183	(((uint) s.s_magic[2]) << 16) + \
184	(((uint) s.s_magic[3]) << 24))
185
186	#define HFS_SUPER_MAGIC 0x4244
187	struct hfs_super_block {
188	u_char s_magic[2];
189	u_char s_dummy[18];
190	u_char s_blksize[4];
191	};
192	#define hfsmagic(s) ((uint) s.s_magic[0] + (((uint) s.s_magic[1]) << 8))
193	#define hfsblksize(s) ((uint) s.s_blksize[0] + \
194	(((uint) s.s_blksize[1]) << 8) + \
195	(((uint) s.s_blksize[2]) << 16) + \
196	(((uint) s.s_blksize[3]) << 24))
197
198	#define HPFS_SUPER_MAGIC 0xf995e849
199	struct hpfs_super_block {
200	u_char s_magic[4];
201	u_char s_magic2[4];
202	};
203	#define hpfsmagic(s) ((uint) s.s_magic[0] + (((uint) s.s_magic[1]) << 8) + \
204	(((uint) s.s_magic[2]) << 16) + \
205	(((uint) s.s_magic[3]) << 24))
206
207	struct adfs_super_block {
208	u_char s_dummy[448];
209	u_char s_blksize[1];
210	u_char s_dummy2[62];
211	u_char s_checksum[1];
212	};
213	#define adfsblksize(s) ((uint) s.s_blksize[0])