old_e2fsprogs/blkid/probe.h

/* vi: set sw=4 ts=4: */
/*
 * probe.h - constants and on-disk structures for extracting device data
 *
 * Copyright (C) 1999 by Andries Brouwer
 * Copyright (C) 1999, 2000, 2003 by Theodore Ts'o
 * Copyright (C) 2001 by Andreas Dilger
 *
 * %Begin-Header%
 * This file may be redistributed under the terms of the
 * GNU Lesser General Public License.
 * %End-Header%
 */

#ifndef _BLKID_PROBE_H
#define _BLKID_PROBE_H

#include <linux/types.h>

struct blkid_magic;

typedef int (*blkid_probe_t)(int fd, blkid_cache cache, blkid_dev dev,
			     const struct blkid_magic *id, unsigned char *buf);

struct blkid_magic {
	const char	*bim_type;	/* type name for this magic */
	long		bim_kboff;	/* kilobyte offset of superblock */
	unsigned	bim_sboff;	/* byte offset within superblock */
	unsigned	bim_len;	/* length of magic */
	const char	*bim_magic;	/* magic string */
	blkid_probe_t	bim_probe;	/* probe function */
};

/*
 * Structures for each of the content types we want to extract information
 * from.  We do not necessarily need the magic field here, because we have
 * already identified the content type before we get this far.  It may still
 * be useful if there are probe functions which handle multiple content types.
 */
struct ext2_super_block {
	__u32		s_inodes_count;
	__u32		s_blocks_count;
	__u32		s_r_blocks_count;
	__u32		s_free_blocks_count;
	__u32		s_free_inodes_count;
	__u32		s_first_data_block;
	__u32		s_log_block_size;
	__u32		s_dummy3[7];
	unsigned char	s_magic[2];
	__u16		s_state;
	__u32		s_dummy5[8];
	__u32		s_feature_compat;
	__u32		s_feature_incompat;
	__u32		s_feature_ro_compat;
	unsigned char   s_uuid[16];
	char	   s_volume_name[16];
};
#define EXT3_FEATURE_COMPAT_HAS_JOURNAL		0x00000004
#define EXT3_FEATURE_INCOMPAT_RECOVER		0x00000004
#define EXT3_FEATURE_INCOMPAT_JOURNAL_DEV	0x00000008

struct xfs_super_block {
	unsigned char	xs_magic[4];
	__u32		xs_blocksize;
	__u64		xs_dblocks;
	__u64		xs_rblocks;
	__u32		xs_dummy1[2];
	unsigned char	xs_uuid[16];
	__u32		xs_dummy2[15];
	char		xs_fname[12];
	__u32		xs_dummy3[2];
	__u64		xs_icount;
	__u64		xs_ifree;
	__u64		xs_fdblocks;
};

struct reiserfs_super_block {
	__u32		rs_blocks_count;
	__u32		rs_free_blocks;
	__u32		rs_root_block;
	__u32		rs_journal_block;
	__u32		rs_journal_dev;
	__u32		rs_orig_journal_size;
	__u32		rs_dummy2[5];
	__u16		rs_blocksize;
	__u16		rs_dummy3[3];
	unsigned char	rs_magic[12];
	__u32		rs_dummy4[5];
	unsigned char	rs_uuid[16];
	char		rs_label[16];
};

struct jfs_super_block {
	unsigned char	js_magic[4];
	__u32		js_version;
	__u64		js_size;
	__u32		js_bsize;
	__u32		js_dummy1;
	__u32		js_pbsize;
	__u32		js_dummy2[27];
	unsigned char	js_uuid[16];
	unsigned char	js_label[16];
	unsigned char	js_loguuid[16];
};

struct romfs_super_block {
	unsigned char	ros_magic[8];
	__u32		ros_dummy1[2];
	unsigned char	ros_volume[16];
};

struct cramfs_super_block {
	__u8		magic[4];
	__u32		size;
	__u32		flags;
	__u32		future;
	__u8		signature[16];
	struct cramfs_info {
		__u32		crc;
		__u32		edition;
		__u32		blocks;
		__u32		files;
	} info;
	__u8		name[16];
};

struct swap_id_block {
/*	unsigned char	sws_boot[1024]; */
	__u32		sws_version;
	__u32		sws_lastpage;
	__u32		sws_nrbad;
	unsigned char	sws_uuid[16];
	char		sws_volume[16];
	unsigned char	sws_pad[117];
	__u32		sws_badpg;
};

/* Yucky misaligned values */
struct vfat_super_block {
/* 00*/	unsigned char	vs_ignored[3];
/* 03*/	unsigned char	vs_sysid[8];
/* 0b*/	unsigned char	vs_sector_size[2];
/* 0d*/	__u8		vs_cluster_size;
/* 0e*/	__u16		vs_reserved;
/* 10*/	__u8		vs_fats;
/* 11*/	unsigned char	vs_dir_entries[2];
/* 13*/	unsigned char	vs_sectors[2];
/* 15*/	unsigned char	vs_media;
/* 16*/	__u16		vs_fat_length;
/* 18*/	__u16		vs_secs_track;
/* 1a*/	__u16		vs_heads;
/* 1c*/	__u32		vs_hidden;
/* 20*/	__u32		vs_total_sect;
/* 24*/	__u32		vs_fat32_length;
/* 28*/	__u16		vs_flags;
/* 2a*/	__u8		vs_version[2];
/* 2c*/	__u32		vs_root_cluster;
/* 30*/	__u16		vs_insfo_sector;
/* 32*/	__u16		vs_backup_boot;
/* 34*/	__u16		vs_reserved2[6];
/* 40*/	unsigned char	vs_unknown[3];
/* 43*/	unsigned char	vs_serno[4];
/* 47*/	char		vs_label[11];
/* 52*/	unsigned char   vs_magic[8];
/* 5a*/	unsigned char	vs_dummy2[164];
/*1fe*/	unsigned char	vs_pmagic[2];
};

/* Yucky misaligned values */
struct msdos_super_block {
/* 00*/	unsigned char	ms_ignored[3];
/* 03*/	unsigned char	ms_sysid[8];
/* 0b*/	unsigned char	ms_sector_size[2];
/* 0d*/	__u8		ms_cluster_size;
/* 0e*/	__u16		ms_reserved;
/* 10*/	__u8		ms_fats;
/* 11*/	unsigned char	ms_dir_entries[2];
/* 13*/	unsigned char	ms_sectors[2];
/* 15*/	unsigned char	ms_media;
/* 16*/	__u16		ms_fat_length;
/* 18*/	__u16		ms_secs_track;
/* 1a*/	__u16		ms_heads;
/* 1c*/	__u32		ms_hidden;
/* 20*/	__u32		ms_total_sect;
/* 24*/	unsigned char	ms_unknown[3];
/* 27*/	unsigned char	ms_serno[4];
/* 2b*/	char		ms_label[11];
/* 36*/	unsigned char   ms_magic[8];
/* 3d*/	unsigned char	ms_dummy2[192];
/*1fe*/	unsigned char	ms_pmagic[2];
};

struct minix_super_block {
	__u16		ms_ninodes;
	__u16		ms_nzones;
	__u16		ms_imap_blocks;
	__u16		ms_zmap_blocks;
	__u16		ms_firstdatazone;
	__u16		ms_log_zone_size;
	__u32		ms_max_size;
	unsigned char	ms_magic[2];
	__u16		ms_state;
	__u32		ms_zones;
};

struct mdp_superblock_s {
	__u32 md_magic;
	__u32 major_version;
	__u32 minor_version;
	__u32 patch_version;
	__u32 gvalid_words;
	__u32 set_uuid0;
	__u32 ctime;
	__u32 level;
	__u32 size;
	__u32 nr_disks;
	__u32 raid_disks;
	__u32 md_minor;
	__u32 not_persistent;
	__u32 set_uuid1;
	__u32 set_uuid2;
	__u32 set_uuid3;
};

struct hfs_super_block {
	char	h_magic[2];
	char	h_dummy[18];
	__u32	h_blksize;
};

struct ocfs_volume_header {
	unsigned char	minor_version[4];
	unsigned char	major_version[4];
	unsigned char	signature[128];
	char		mount[128];
	unsigned char   mount_len[2];
};

struct ocfs_volume_label {
	unsigned char	disk_lock[48];
	char		label[64];
	unsigned char	label_len[2];
	unsigned char  vol_id[16];
	unsigned char  vol_id_len[2];
};

#define ocfsmajor(o) ((__u32)o.major_version[0] \
                   + (((__u32) o.major_version[1]) << 8) \
                   + (((__u32) o.major_version[2]) << 16) \
                   + (((__u32) o.major_version[3]) << 24))
#define ocfslabellen(o)	((__u32)o.label_len[0] + (((__u32) o.label_len[1]) << 8))
#define ocfsmountlen(o)	((__u32)o.mount_len[0] + (((__u32) o.mount_len[1])<<8))

#define OCFS_MAGIC "OracleCFS"

struct ocfs2_super_block {
	unsigned char  signature[8];
	unsigned char  s_dummy1[184];
	unsigned char  s_dummy2[80];
	char	       s_label[64];
	unsigned char  s_uuid[16];
};

#define OCFS2_MIN_BLOCKSIZE             512
#define OCFS2_MAX_BLOCKSIZE             4096

#define OCFS2_SUPER_BLOCK_BLKNO         2

#define OCFS2_SUPER_BLOCK_SIGNATURE     "OCFSV2"

struct oracle_asm_disk_label {
	char dummy[32];
	char dl_tag[8];
	char dl_id[24];
};

#define ORACLE_ASM_DISK_LABEL_MARKED    "ORCLDISK"
#define ORACLE_ASM_DISK_LABEL_OFFSET    32

#define ISODCL(from, to) (to - from + 1)
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)];
};

/*
 * Byte swap functions
 */
#ifdef __GNUC__
#define _INLINE_ static __inline__
#else				/* For Watcom C */
#define _INLINE_ static inline
#endif

static __u16 blkid_swab16(__u16 val);
static __u32 blkid_swab32(__u32 val);
static __u64 blkid_swab64(__u64 val);

#if ((defined __GNUC__) && \
     (defined(__i386__) || defined(__i486__) || defined(__i586__)))

#define _BLKID_HAVE_ASM_BITOPS_

_INLINE_ __u32 blkid_swab32(__u32 val)
{
#ifdef EXT2FS_REQUIRE_486
	__asm__("bswap %0" : "=r" (val) : "0" (val));
#else
	__asm__("xchgb %b0,%h0\n\t"	/* swap lower bytes	*/
		"rorl $16,%0\n\t"	/* swap words		*/
		"xchgb %b0,%h0"		/* swap higher bytes	*/
		:"=q" (val)
		: "0" (val));
#endif
	return val;
}

_INLINE_ __u16 blkid_swab16(__u16 val)
{
	__asm__("xchgb %b0,%h0"		/* swap bytes		*/ \
		: "=q" (val) \
		:  "0" (val)); \
		return val;
}

_INLINE_ __u64 blkid_swab64(__u64 val)
{
	return blkid_swab32(val >> 32) |
	       ( ((__u64)blkid_swab32((__u32)val)) << 32 );
}
#endif

#if !defined(_BLKID_HAVE_ASM_BITOPS_)

_INLINE_  __u16 blkid_swab16(__u16 val)
{
	return (val >> 8) | (val << 8);
}

_INLINE_ __u32 blkid_swab32(__u32 val)
{
	return (val>>24) | ((val>>8) & 0xFF00) |
		((val<<8) & 0xFF0000) | (val<<24);
}

_INLINE_ __u64 blkid_swab64(__u64 val)
{
	return blkid_swab32(val >> 32) |
	       ( ((__u64)blkid_swab32((__u32)val)) << 32 );
}
#endif


#if  __BYTE_ORDER == __BIG_ENDIAN
#define blkid_le16(x) blkid_swab16(x)
#define blkid_le32(x) blkid_swab32(x)
#define blkid_le64(x) blkid_swab64(x)
#define blkid_be16(x) (x)
#define blkid_be32(x) (x)
#define blkid_be64(x) (x)
#else
#define blkid_le16(x) (x)
#define blkid_le32(x) (x)
#define blkid_le64(x) (x)
#define blkid_be16(x) blkid_swab16(x)
#define blkid_be32(x) blkid_swab32(x)
#define blkid_be64(x) blkid_swab64(x)
#endif

#undef _INLINE_

#endif /* _BLKID_PROBE_H */
1	niro	532	/* vi: set sw=4 ts=4: */
2			/*
3			* probe.h - constants and on-disk structures for extracting device data
4			*
5			* Copyright (C) 1999 by Andries Brouwer
6			* Copyright (C) 1999, 2000, 2003 by Theodore Ts'o
7			* Copyright (C) 2001 by Andreas Dilger
8			*
9			* %Begin-Header%
10			* This file may be redistributed under the terms of the
11			* GNU Lesser General Public License.
12			* %End-Header%
13			*/
14
15			#ifndef _BLKID_PROBE_H
16			#define _BLKID_PROBE_H
17
18			#include <linux/types.h>
19
20			struct blkid_magic;
21
22			typedef int (*blkid_probe_t)(int fd, blkid_cache cache, blkid_dev dev,
23			const struct blkid_magic id, unsigned char buf);
24
25			struct blkid_magic {
26			const char bim_type; / type name for this magic */
27			long bim_kboff; /* kilobyte offset of superblock */
28			unsigned bim_sboff; /* byte offset within superblock */
29			unsigned bim_len; /* length of magic */
30			const char bim_magic; / magic string */
31			blkid_probe_t bim_probe; /* probe function */
32			};
33
34			/*
35			* Structures for each of the content types we want to extract information
36			* from. We do not necessarily need the magic field here, because we have
37			* already identified the content type before we get this far. It may still
38			* be useful if there are probe functions which handle multiple content types.
39			*/
40			struct ext2_super_block {
41			__u32 s_inodes_count;
42			__u32 s_blocks_count;
43			__u32 s_r_blocks_count;
44			__u32 s_free_blocks_count;
45			__u32 s_free_inodes_count;
46			__u32 s_first_data_block;
47			__u32 s_log_block_size;
48			__u32 s_dummy3[7];
49			unsigned char s_magic[2];
50			__u16 s_state;
51			__u32 s_dummy5[8];
52			__u32 s_feature_compat;
53			__u32 s_feature_incompat;
54			__u32 s_feature_ro_compat;
55			unsigned char s_uuid[16];
56			char s_volume_name[16];
57			};
58			#define EXT3_FEATURE_COMPAT_HAS_JOURNAL 0x00000004
59			#define EXT3_FEATURE_INCOMPAT_RECOVER 0x00000004
60			#define EXT3_FEATURE_INCOMPAT_JOURNAL_DEV 0x00000008
61
62			struct xfs_super_block {
63			unsigned char xs_magic[4];
64			__u32 xs_blocksize;
65			__u64 xs_dblocks;
66			__u64 xs_rblocks;
67			__u32 xs_dummy1[2];
68			unsigned char xs_uuid[16];
69			__u32 xs_dummy2[15];
70			char xs_fname[12];
71			__u32 xs_dummy3[2];
72			__u64 xs_icount;
73			__u64 xs_ifree;
74			__u64 xs_fdblocks;
75			};
76
77			struct reiserfs_super_block {
78			__u32 rs_blocks_count;
79			__u32 rs_free_blocks;
80			__u32 rs_root_block;
81			__u32 rs_journal_block;
82			__u32 rs_journal_dev;
83			__u32 rs_orig_journal_size;
84			__u32 rs_dummy2[5];
85			__u16 rs_blocksize;
86			__u16 rs_dummy3[3];
87			unsigned char rs_magic[12];
88			__u32 rs_dummy4[5];
89			unsigned char rs_uuid[16];
90			char rs_label[16];
91			};
92
93			struct jfs_super_block {
94			unsigned char js_magic[4];
95			__u32 js_version;
96			__u64 js_size;
97			__u32 js_bsize;
98			__u32 js_dummy1;
99			__u32 js_pbsize;
100			__u32 js_dummy2[27];
101			unsigned char js_uuid[16];
102			unsigned char js_label[16];
103			unsigned char js_loguuid[16];
104			};
105
106			struct romfs_super_block {
107			unsigned char ros_magic[8];
108			__u32 ros_dummy1[2];
109			unsigned char ros_volume[16];
110			};
111
112			struct cramfs_super_block {
113			__u8 magic[4];
114			__u32 size;
115			__u32 flags;
116			__u32 future;
117			__u8 signature[16];
118			struct cramfs_info {
119			__u32 crc;
120			__u32 edition;
121			__u32 blocks;
122			__u32 files;
123			} info;
124			__u8 name[16];
125			};
126
127			struct swap_id_block {
128			/* unsigned char sws_boot[1024]; */
129			__u32 sws_version;
130			__u32 sws_lastpage;
131			__u32 sws_nrbad;
132			unsigned char sws_uuid[16];
133			char sws_volume[16];
134			unsigned char sws_pad[117];
135			__u32 sws_badpg;
136			};
137
138			/* Yucky misaligned values */
139			struct vfat_super_block {
140			/* 00*/ unsigned char vs_ignored[3];
141			/* 03*/ unsigned char vs_sysid[8];
142			/* 0b*/ unsigned char vs_sector_size[2];
143			/* 0d*/ __u8 vs_cluster_size;
144			/* 0e*/ __u16 vs_reserved;
145			/* 10*/ __u8 vs_fats;
146			/* 11*/ unsigned char vs_dir_entries[2];
147			/* 13*/ unsigned char vs_sectors[2];
148			/* 15*/ unsigned char vs_media;
149			/* 16*/ __u16 vs_fat_length;
150			/* 18*/ __u16 vs_secs_track;
151			/* 1a*/ __u16 vs_heads;
152			/* 1c*/ __u32 vs_hidden;
153			/* 20*/ __u32 vs_total_sect;
154			/* 24*/ __u32 vs_fat32_length;
155			/* 28*/ __u16 vs_flags;
156			/* 2a*/ __u8 vs_version[2];
157			/* 2c*/ __u32 vs_root_cluster;
158			/* 30*/ __u16 vs_insfo_sector;
159			/* 32*/ __u16 vs_backup_boot;
160			/* 34*/ __u16 vs_reserved2[6];
161			/* 40*/ unsigned char vs_unknown[3];
162			/* 43*/ unsigned char vs_serno[4];
163			/* 47*/ char vs_label[11];
164			/* 52*/ unsigned char vs_magic[8];
165			/* 5a*/ unsigned char vs_dummy2[164];
166			/1fe/ unsigned char vs_pmagic[2];
167			};
168
169			/* Yucky misaligned values */
170			struct msdos_super_block {
171			/* 00*/ unsigned char ms_ignored[3];
172			/* 03*/ unsigned char ms_sysid[8];
173			/* 0b*/ unsigned char ms_sector_size[2];
174			/* 0d*/ __u8 ms_cluster_size;
175			/* 0e*/ __u16 ms_reserved;
176			/* 10*/ __u8 ms_fats;
177			/* 11*/ unsigned char ms_dir_entries[2];
178			/* 13*/ unsigned char ms_sectors[2];
179			/* 15*/ unsigned char ms_media;
180			/* 16*/ __u16 ms_fat_length;
181			/* 18*/ __u16 ms_secs_track;
182			/* 1a*/ __u16 ms_heads;
183			/* 1c*/ __u32 ms_hidden;
184			/* 20*/ __u32 ms_total_sect;
185			/* 24*/ unsigned char ms_unknown[3];
186			/* 27*/ unsigned char ms_serno[4];
187			/* 2b*/ char ms_label[11];
188			/* 36*/ unsigned char ms_magic[8];
189			/* 3d*/ unsigned char ms_dummy2[192];
190			/1fe/ unsigned char ms_pmagic[2];
191			};
192
193			struct minix_super_block {
194			__u16 ms_ninodes;
195			__u16 ms_nzones;
196			__u16 ms_imap_blocks;
197			__u16 ms_zmap_blocks;
198			__u16 ms_firstdatazone;
199			__u16 ms_log_zone_size;
200			__u32 ms_max_size;
201			unsigned char ms_magic[2];
202			__u16 ms_state;
203			__u32 ms_zones;
204			};
205
206			struct mdp_superblock_s {
207			__u32 md_magic;
208			__u32 major_version;
209			__u32 minor_version;
210			__u32 patch_version;
211			__u32 gvalid_words;
212			__u32 set_uuid0;
213			__u32 ctime;
214			__u32 level;
215			__u32 size;
216			__u32 nr_disks;
217			__u32 raid_disks;
218			__u32 md_minor;
219			__u32 not_persistent;
220			__u32 set_uuid1;
221			__u32 set_uuid2;
222			__u32 set_uuid3;
223			};
224
225			struct hfs_super_block {
226			char h_magic[2];
227			char h_dummy[18];
228			__u32 h_blksize;
229			};
230
231			struct ocfs_volume_header {
232			unsigned char minor_version[4];
233			unsigned char major_version[4];
234			unsigned char signature[128];
235			char mount[128];
236			unsigned char mount_len[2];
237			};
238
239			struct ocfs_volume_label {
240			unsigned char disk_lock[48];
241			char label[64];
242			unsigned char label_len[2];
243			unsigned char vol_id[16];
244			unsigned char vol_id_len[2];
245			};
246
247			#define ocfsmajor(o) ((__u32)o.major_version[0] \
248			+ (((__u32) o.major_version[1]) << 8) \
249			+ (((__u32) o.major_version[2]) << 16) \
250			+ (((__u32) o.major_version[3]) << 24))
251			#define ocfslabellen(o) ((__u32)o.label_len[0] + (((__u32) o.label_len[1]) << 8))
252			#define ocfsmountlen(o) ((__u32)o.mount_len[0] + (((__u32) o.mount_len[1])<<8))
253
254			#define OCFS_MAGIC "OracleCFS"
255
256			struct ocfs2_super_block {
257			unsigned char signature[8];
258			unsigned char s_dummy1[184];
259			unsigned char s_dummy2[80];
260			char s_label[64];
261			unsigned char s_uuid[16];
262			};
263
264			#define OCFS2_MIN_BLOCKSIZE 512
265			#define OCFS2_MAX_BLOCKSIZE 4096
266
267			#define OCFS2_SUPER_BLOCK_BLKNO 2
268
269			#define OCFS2_SUPER_BLOCK_SIGNATURE "OCFSV2"
270
271			struct oracle_asm_disk_label {
272			char dummy[32];
273			char dl_tag[8];
274			char dl_id[24];
275			};
276
277			#define ORACLE_ASM_DISK_LABEL_MARKED "ORCLDISK"
278			#define ORACLE_ASM_DISK_LABEL_OFFSET 32
279
280			#define ISODCL(from, to) (to - from + 1)
281			struct iso_volume_descriptor {
282			char type[ISODCL(1,1)]; /* 711 */
283			char id[ISODCL(2,6)];
284			char version[ISODCL(7,7)];
285			char data[ISODCL(8,2048)];
286			};
287
288			/*
289			* Byte swap functions
290			*/
291			#ifdef __GNUC__
292			#define _INLINE_ static __inline__
293			#else /* For Watcom C */
294			#define _INLINE_ static inline
295			#endif
296
297			static __u16 blkid_swab16(__u16 val);
298			static __u32 blkid_swab32(__u32 val);
299			static __u64 blkid_swab64(__u64 val);
300
301			#if ((defined __GNUC__) && \
302			(defined(__i386__) \|\| defined(__i486__) \|\| defined(__i586__)))
303
304			#define _BLKID_HAVE_ASM_BITOPS_
305
306			_INLINE_ __u32 blkid_swab32(__u32 val)
307			{
308			#ifdef EXT2FS_REQUIRE_486
309			__asm__("bswap %0" : "=r" (val) : "0" (val));
310			#else
311			__asm__("xchgb %b0,%h0\n\t" /* swap lower bytes */
312			"rorl $16,%0\n\t" /* swap words */
313			"xchgb %b0,%h0" /* swap higher bytes */
314			:"=q" (val)
315			: "0" (val));
316			#endif
317			return val;
318			}
319
320			_INLINE_ __u16 blkid_swab16(__u16 val)
321			{
322			__asm__("xchgb %b0,%h0" /* swap bytes */ \
323			: "=q" (val) \
324			: "0" (val)); \
325			return val;
326			}
327
328			_INLINE_ __u64 blkid_swab64(__u64 val)
329			{
330			return blkid_swab32(val >> 32) \|
331			( ((__u64)blkid_swab32((__u32)val)) << 32 );
332			}
333			#endif
334
335			#if !defined(_BLKID_HAVE_ASM_BITOPS_)
336
337			_INLINE_ __u16 blkid_swab16(__u16 val)
338			{
339			return (val >> 8) \| (val << 8);
340			}
341
342			_INLINE_ __u32 blkid_swab32(__u32 val)
343			{
344			return (val>>24) \| ((val>>8) & 0xFF00) \|
345			((val<<8) & 0xFF0000) \| (val<<24);
346			}
347
348			_INLINE_ __u64 blkid_swab64(__u64 val)
349			{
350			return blkid_swab32(val >> 32) \|
351			( ((__u64)blkid_swab32((__u32)val)) << 32 );
352			}
353			#endif
354
355
356
357			#if __BYTE_ORDER == __BIG_ENDIAN
358			#define blkid_le16(x) blkid_swab16(x)
359			#define blkid_le32(x) blkid_swab32(x)
360			#define blkid_le64(x) blkid_swab64(x)
361			#define blkid_be16(x) (x)
362			#define blkid_be32(x) (x)
363			#define blkid_be64(x) (x)
364			#else
365			#define blkid_le16(x) (x)
366			#define blkid_le32(x) (x)
367			#define blkid_le64(x) (x)
368			#define blkid_be16(x) blkid_swab16(x)
369			#define blkid_be32(x) blkid_swab32(x)
370			#define blkid_be64(x) blkid_swab64(x)
371			#endif
372
373			#undef _INLINE_
374
375			#endif /* _BLKID_PROBE_H */