u8 n_rootdir_entries[2];
u8 n_sectors_s[2];
u8 media_byte;
- u16 sectors_per_fat;
- u16 sectors_per_track;
- u16 heads_per_cyl;
- u32 n_hidden_sectors;
- u32 n_sectors_l; /* size of partition */
+ __le16 sectors_per_fat;
+ __le16 sectors_per_track;
+ __le16 heads_per_cyl;
+ __le32 n_hidden_sectors;
+ __le32 n_sectors_l; /* size of partition */
u8 drive_number;
u8 mbz;
u8 sig_28h; /* 28h */
u8 vol_label[11];
u8 sig_hpfs[8]; /* "HPFS " */
u8 pad[448];
- u16 magic; /* aa55 */
+ __le16 magic; /* aa55 */
};
struct hpfs_super_block
{
- u32 magic; /* f995 e849 */
- u32 magic1; /* fa53 e9c5, more magic? */
+ __le32 magic; /* f995 e849 */
+ __le32 magic1; /* fa53 e9c5, more magic? */
u8 version; /* version of a filesystem usually 2 */
u8 funcversion; /* functional version - oldest version
of filesystem that can understand
this disk */
- u16 zero; /* 0 */
- fnode_secno root; /* fnode of root directory */
- secno n_sectors; /* size of filesystem */
- u32 n_badblocks; /* number of bad blocks */
- secno bitmaps; /* pointers to free space bit maps */
- u32 zero1; /* 0 */
- secno badblocks; /* bad block list */
- u32 zero3; /* 0 */
- time32_t last_chkdsk; /* date last checked, 0 if never */
- time32_t last_optimize; /* date last optimized, 0 if never */
- secno n_dir_band; /* number of sectors in dir band */
- secno dir_band_start; /* first sector in dir band */
- secno dir_band_end; /* last sector in dir band */
- secno dir_band_bitmap; /* free space map, 1 dnode per bit */
+ __le16 zero; /* 0 */
+ __le32 root; /* fnode of root directory */
+ __le32 n_sectors; /* size of filesystem */
+ __le32 n_badblocks; /* number of bad blocks */
+ __le32 bitmaps; /* pointers to free space bit maps */
+ __le32 zero1; /* 0 */
+ __le32 badblocks; /* bad block list */
+ __le32 zero3; /* 0 */
+ __le32 last_chkdsk; /* date last checked, 0 if never */
+ __le32 last_optimize; /* date last optimized, 0 if never */
+ __le32 n_dir_band; /* number of sectors in dir band */
+ __le32 dir_band_start; /* first sector in dir band */
+ __le32 dir_band_end; /* last sector in dir band */
+ __le32 dir_band_bitmap; /* free space map, 1 dnode per bit */
u8 volume_name[32]; /* not used */
- secno user_id_table; /* 8 preallocated sectors - user id */
+ __le32 user_id_table; /* 8 preallocated sectors - user id */
u32 zero6[103]; /* 0 */
};
struct hpfs_spare_block
{
- u32 magic; /* f991 1849 */
- u32 magic1; /* fa52 29c5, more magic? */
+ __le32 magic; /* f991 1849 */
+ __le32 magic1; /* fa52 29c5, more magic? */
#ifdef __LITTLE_ENDIAN
u8 dirty: 1; /* 0 clean, 1 "improperly stopped" */
u8 mm_contlgulty;
u8 unused;
- secno hotfix_map; /* info about remapped bad sectors */
- u32 n_spares_used; /* number of hotfixes */
- u32 n_spares; /* number of spares in hotfix map */
- u32 n_dnode_spares_free; /* spare dnodes unused */
- u32 n_dnode_spares; /* length of spare_dnodes[] list,
+ __le32 hotfix_map; /* info about remapped bad sectors */
+ __le32 n_spares_used; /* number of hotfixes */
+ __le32 n_spares; /* number of spares in hotfix map */
+ __le32 n_dnode_spares_free; /* spare dnodes unused */
+ __le32 n_dnode_spares; /* length of spare_dnodes[] list,
follows in this block*/
- secno code_page_dir; /* code page directory block */
- u32 n_code_pages; /* number of code pages */
- u32 super_crc; /* on HPFS386 and LAN Server this is
+ __le32 code_page_dir; /* code page directory block */
+ __le32 n_code_pages; /* number of code pages */
+ __le32 super_crc; /* on HPFS386 and LAN Server this is
checksum of superblock, on normal
OS/2 unused */
- u32 spare_crc; /* on HPFS386 checksum of spareblock */
- u32 zero1[15]; /* unused */
- dnode_secno spare_dnodes[100]; /* emergency free dnode list */
- u32 zero2[1]; /* room for more? */
+ __le32 spare_crc; /* on HPFS386 checksum of spareblock */
+ __le32 zero1[15]; /* unused */
+ __le32 spare_dnodes[100]; /* emergency free dnode list */
+ __le32 zero2[1]; /* room for more? */
};
/* The bad block list is 4 sectors long. The first word must be zero,
struct code_page_directory
{
- u32 magic; /* 4945 21f7 */
- u32 n_code_pages; /* number of pointers following */
- u32 zero1[2];
+ __le32 magic; /* 4945 21f7 */
+ __le32 n_code_pages; /* number of pointers following */
+ __le32 zero1[2];
struct {
- u16 ix; /* index */
- u16 code_page_number; /* code page number */
- u32 bounds; /* matches corresponding word
+ __le16 ix; /* index */
+ __le16 code_page_number; /* code page number */
+ __le32 bounds; /* matches corresponding word
in data block */
- secno code_page_data; /* sector number of a code_page_data
+ __le32 code_page_data; /* sector number of a code_page_data
containing c.p. array */
- u16 index; /* index in c.p. array in that sector*/
- u16 unknown; /* some unknown value; usually 0;
+ __le16 index; /* index in c.p. array in that sector*/
+ __le16 unknown; /* some unknown value; usually 0;
2 in Japanese version */
} array[31]; /* unknown length */
};
struct code_page_data
{
- u32 magic; /* 8945 21f7 */
- u32 n_used; /* # elements used in c_p_data[] */
- u32 bounds[3]; /* looks a bit like
+ __le32 magic; /* 8945 21f7 */
+ __le32 n_used; /* # elements used in c_p_data[] */
+ __le32 bounds[3]; /* looks a bit like
(beg1,end1), (beg2,end2)
one byte each */
- u16 offs[3]; /* offsets from start of sector
+ __le16 offs[3]; /* offsets from start of sector
to start of c_p_data[ix] */
struct {
- u16 ix; /* index */
- u16 code_page_number; /* code page number */
- u16 unknown; /* the same as in cp directory */
+ __le16 ix; /* index */
+ __le16 code_page_number; /* code page number */
+ __le16 unknown; /* the same as in cp directory */
u8 map[128]; /* upcase table for chars 80..ff */
- u16 zero2;
+ __le16 zero2;
} code_page[3];
u8 incognita[78];
};
#define DNODE_MAGIC 0x77e40aae
struct dnode {
- u32 magic; /* 77e4 0aae */
- u32 first_free; /* offset from start of dnode to
+ __le32 magic; /* 77e4 0aae */
+ __le32 first_free; /* offset from start of dnode to
first free dir entry */
#ifdef __LITTLE_ENDIAN
u8 root_dnode: 1; /* Is it root dnode? */
u8 root_dnode: 1; /* Is it root dnode? */
#endif
u8 increment_me2[3];
- secno up; /* (root dnode) directory's fnode
+ __le32 up; /* (root dnode) directory's fnode
(nonroot) parent dnode */
- dnode_secno self; /* pointer to this dnode */
+ __le32 self; /* pointer to this dnode */
u8 dirent[2028]; /* one or more dirents */
};
struct hpfs_dirent {
- u16 length; /* offset to next dirent */
+ __le16 length; /* offset to next dirent */
#ifdef __LITTLE_ENDIAN
u8 first: 1; /* set on phony ^A^A (".") entry */
u8 read_only: 1; /* dos attrib */
#endif
- fnode_secno fnode; /* fnode giving allocation info */
- time32_t write_date; /* mtime */
- u32 file_size; /* file length, bytes */
- time32_t read_date; /* atime */
- time32_t creation_date; /* ctime */
- u32 ea_size; /* total EA length, bytes */
+ __le32 fnode; /* fnode giving allocation info */
+ __le32 write_date; /* mtime */
+ __le32 file_size; /* file length, bytes */
+ __le32 read_date; /* atime */
+ __le32 creation_date; /* ctime */
+ __le32 ea_size; /* total EA length, bytes */
u8 no_of_acls; /* number of ACL's (low 3 bits) */
u8 ix; /* code page index (of filename), see
struct code_page_data */
struct bplus_leaf_node
{
- u32 file_secno; /* first file sector in extent */
- u32 length; /* length, sectors */
- secno disk_secno; /* first corresponding disk sector */
+ __le32 file_secno; /* first file sector in extent */
+ __le32 length; /* length, sectors */
+ __le32 disk_secno; /* first corresponding disk sector */
};
struct bplus_internal_node
{
- u32 file_secno; /* subtree maps sectors < this */
- anode_secno down; /* pointer to subtree */
+ __le32 file_secno; /* subtree maps sectors < this */
+ __le32 down; /* pointer to subtree */
};
+enum {
+ BP_hbff = 1,
+ BP_fnode_parent = 0x20,
+ BP_binary_search = 0x40,
+ BP_internal = 0x80
+};
struct bplus_header
{
-#ifdef __LITTLE_ENDIAN
- u8 hbff: 1; /* high bit of first free entry offset */
- u8 flag1234: 4;
- u8 fnode_parent: 1; /* ? we're pointed to by an fnode,
- the data btree or some ea or the
- main ea bootage pointer ea_secno */
- /* also can get set in fnodes, which
- may be a chkdsk glitch or may mean
- this bit is irrelevant in fnodes,
- or this interpretation is all wet */
- u8 binary_search: 1; /* suggest binary search (unused) */
- u8 internal: 1; /* 1 -> (internal) tree of anodes
- 0 -> (leaf) list of extents */
-#else
- u8 internal: 1; /* 1 -> (internal) tree of anodes
- 0 -> (leaf) list of extents */
- u8 binary_search: 1; /* suggest binary search (unused) */
- u8 fnode_parent: 1; /* ? we're pointed to by an fnode,
+ u8 flags; /* bit 0 - high bit of first free entry offset
+ bit 5 - we're pointed to by an fnode,
the data btree or some ea or the
- main ea bootage pointer ea_secno */
- /* also can get set in fnodes, which
- may be a chkdsk glitch or may mean
- this bit is irrelevant in fnodes,
- or this interpretation is all wet */
- u8 flag1234: 4;
- u8 hbff: 1; /* high bit of first free entry offset */
-#endif
+ main ea bootage pointer ea_secno
+ bit 6 - suggest binary search (unused)
+ bit 7 - 1 -> (internal) tree of anodes
+ 0 -> (leaf) list of extents */
u8 fill[3];
u8 n_free_nodes; /* free nodes in following array */
u8 n_used_nodes; /* used nodes in following array */
- u16 first_free; /* offset from start of header to
+ __le16 first_free; /* offset from start of header to
first free node in array */
union {
struct bplus_internal_node internal[0]; /* (internal) 2-word entries giving
} u;
};
+static inline bool bp_internal(struct bplus_header *bp)
+{
+ return bp->flags & BP_internal;
+}
+
+static inline bool bp_fnode_parent(struct bplus_header *bp)
+{
+ return bp->flags & BP_fnode_parent;
+}
+
/* fnode: root of allocation b+ tree, and EA's */
/* Every file and every directory has one fnode, pointed to by the directory
enum {FNODE_anode = cpu_to_le16(2), FNODE_dir = cpu_to_le16(256)};
struct fnode
{
- u32 magic; /* f7e4 0aae */
- u32 zero1[2]; /* read history */
+ __le32 magic; /* f7e4 0aae */
+ __le32 zero1[2]; /* read history */
u8 len, name[15]; /* true length, truncated name */
- fnode_secno up; /* pointer to file's directory fnode */
- secno acl_size_l;
- secno acl_secno;
- u16 acl_size_s;
+ __le32 up; /* pointer to file's directory fnode */
+ __le32 acl_size_l;
+ __le32 acl_secno;
+ __le16 acl_size_s;
u8 acl_anode;
u8 zero2; /* history bit count */
- u32 ea_size_l; /* length of disk-resident ea's */
- secno ea_secno; /* first sector of disk-resident ea's*/
- u16 ea_size_s; /* length of fnode-resident ea's */
+ __le32 ea_size_l; /* length of disk-resident ea's */
+ __le32 ea_secno; /* first sector of disk-resident ea's*/
+ __le16 ea_size_s; /* length of fnode-resident ea's */
__le16 flags; /* bit 1 set -> ea_secno is an anode */
/* bit 8 set -> directory. first & only extent
struct bplus_internal_node internal[12];
} u;
- u32 file_size; /* file length, bytes */
- u32 n_needea; /* number of EA's with NEEDEA set */
+ __le32 file_size; /* file length, bytes */
+ __le32 n_needea; /* number of EA's with NEEDEA set */
u8 user_id[16]; /* unused */
- u16 ea_offs; /* offset from start of fnode
+ __le16 ea_offs; /* offset from start of fnode
to first fnode-resident ea */
u8 dasd_limit_treshhold;
u8 dasd_limit_delta;
- u32 dasd_limit;
- u32 dasd_usage;
+ __le32 dasd_limit;
+ __le32 dasd_usage;
u8 ea[316]; /* zero or more EA's, packed together
with no alignment padding.
(Do not use this name, get here
struct anode
{
- u32 magic; /* 37e4 0aae */
- anode_secno self; /* pointer to this anode */
- secno up; /* parent anode or fnode */
+ __le32 magic; /* 37e4 0aae */
+ __le32 self; /* pointer to this anode */
+ __le32 up; /* parent anode or fnode */
struct bplus_header btree; /* b+tree, 40 extents or 60 subtrees */
union {
struct bplus_internal_node internal[60];
} u;
- u32 fill[3]; /* unused */
+ __le32 fill[3]; /* unused */
};
projects / karo-tx-linux.git / blobdiff