提交 d878597c 编写于 作者: M Mikulas Patocka 提交者: Linus Torvalds

HPFS: Use types with defined width

Use types with defined width
Signed-off-by: NMikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
上级 e5d6a7dd
......@@ -21,7 +21,7 @@
/* Notation */
typedef unsigned secno; /* sector number, partition relative */
typedef u32 secno; /* sector number, partition relative */
typedef secno dnode_secno; /* sector number of a dnode */
typedef secno fnode_secno; /* sector number of an fnode */
......@@ -38,28 +38,28 @@ typedef u32 time32_t; /* 32-bit time_t type */
struct hpfs_boot_block
{
unsigned char jmp[3];
unsigned char oem_id[8];
unsigned char bytes_per_sector[2]; /* 512 */
unsigned char sectors_per_cluster;
unsigned char n_reserved_sectors[2];
unsigned char n_fats;
unsigned char n_rootdir_entries[2];
unsigned char n_sectors_s[2];
unsigned char media_byte;
unsigned short sectors_per_fat;
unsigned short sectors_per_track;
unsigned short heads_per_cyl;
unsigned int n_hidden_sectors;
unsigned int n_sectors_l; /* size of partition */
unsigned char drive_number;
unsigned char mbz;
unsigned char sig_28h; /* 28h */
unsigned char vol_serno[4];
unsigned char vol_label[11];
unsigned char sig_hpfs[8]; /* "HPFS " */
unsigned char pad[448];
unsigned short magic; /* aa55 */
u8 jmp[3];
u8 oem_id[8];
u8 bytes_per_sector[2]; /* 512 */
u8 sectors_per_cluster;
u8 n_reserved_sectors[2];
u8 n_fats;
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 */
u8 drive_number;
u8 mbz;
u8 sig_28h; /* 28h */
u8 vol_serno[4];
u8 vol_label[11];
u8 sig_hpfs[8]; /* "HPFS " */
u8 pad[448];
u16 magic; /* aa55 */
};
......@@ -71,31 +71,30 @@ struct hpfs_boot_block
struct hpfs_super_block
{
unsigned magic; /* f995 e849 */
unsigned magic1; /* fa53 e9c5, more magic? */
/*unsigned huh202;*/ /* ?? 202 = N. of B. in 1.00390625 S.*/
char version; /* version of a filesystem usually 2 */
char funcversion; /* functional version - oldest version
u32 magic; /* f995 e849 */
u32 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 */
unsigned short int zero; /* 0 */
u16 zero; /* 0 */
fnode_secno root; /* fnode of root directory */
secno n_sectors; /* size of filesystem */
unsigned n_badblocks; /* number of bad blocks */
u32 n_badblocks; /* number of bad blocks */
secno bitmaps; /* pointers to free space bit maps */
unsigned zero1; /* 0 */
u32 zero1; /* 0 */
secno badblocks; /* bad block list */
unsigned zero3; /* 0 */
u32 zero3; /* 0 */
time32_t last_chkdsk; /* date last checked, 0 if never */
/*unsigned zero4;*/ /* 0 */
/*u32 zero4;*/ /* 0 */
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 */
char volume_name[32]; /* not used */
u8 volume_name[32]; /* not used */
secno user_id_table; /* 8 preallocated sectors - user id */
unsigned zero6[103]; /* 0 */
u32 zero6[103]; /* 0 */
};
......@@ -107,11 +106,10 @@ struct hpfs_super_block
struct hpfs_spare_block
{
unsigned magic; /* f991 1849 */
unsigned magic1; /* fa52 29c5, more magic? */
u32 magic; /* f991 1849 */
u32 magic1; /* fa52 29c5, more magic? */
unsigned dirty: 1; /* 0 clean, 1 "improperly stopped" */
/*unsigned flag1234: 4;*/ /* unknown flags */
unsigned sparedir_used: 1; /* spare dirblks used */
unsigned hotfixes_used: 1; /* hotfixes used */
unsigned bad_sector: 1; /* bad sector, corrupted disk (???) */
......@@ -126,25 +124,24 @@ struct hpfs_spare_block
unsigned dce_acls_active: 1;
unsigned dasd_limits_dirty: 1;
unsigned flag67: 2;
unsigned char mm_contlgulty;
unsigned char unused;
u8 mm_contlgulty;
u8 unused;
secno hotfix_map; /* info about remapped bad sectors */
unsigned n_spares_used; /* number of hotfixes */
unsigned n_spares; /* number of spares in hotfix map */
unsigned n_dnode_spares_free; /* spare dnodes unused */
unsigned n_dnode_spares; /* length of spare_dnodes[] list,
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,
follows in this block*/
secno code_page_dir; /* code page directory block */
unsigned n_code_pages; /* number of code pages */
/*unsigned large_numbers[2];*/ /* ?? */
unsigned super_crc; /* on HPFS386 and LAN Server this is
u32 n_code_pages; /* number of code pages */
u32 super_crc; /* on HPFS386 and LAN Server this is
checksum of superblock, on normal
OS/2 unused */
unsigned spare_crc; /* on HPFS386 checksum of spareblock */
unsigned zero1[15]; /* unused */
u32 spare_crc; /* on HPFS386 checksum of spareblock */
u32 zero1[15]; /* unused */
dnode_secno spare_dnodes[100]; /* emergency free dnode list */
unsigned zero2[1]; /* room for more? */
u32 zero2[1]; /* room for more? */
};
/* The bad block list is 4 sectors long. The first word must be zero,
......@@ -179,18 +176,18 @@ struct hpfs_spare_block
struct code_page_directory
{
unsigned magic; /* 4945 21f7 */
unsigned n_code_pages; /* number of pointers following */
unsigned zero1[2];
u32 magic; /* 4945 21f7 */
u32 n_code_pages; /* number of pointers following */
u32 zero1[2];
struct {
unsigned short ix; /* index */
unsigned short code_page_number; /* code page number */
unsigned bounds; /* matches corresponding word
u16 ix; /* index */
u16 code_page_number; /* code page number */
u32 bounds; /* matches corresponding word
in data block */
secno code_page_data; /* sector number of a code_page_data
containing c.p. array */
unsigned short index; /* index in c.p. array in that sector*/
unsigned short unknown; /* some unknown value; usually 0;
u16 index; /* index in c.p. array in that sector*/
u16 unknown; /* some unknown value; usually 0;
2 in Japanese version */
} array[31]; /* unknown length */
};
......@@ -201,21 +198,21 @@ struct code_page_directory
struct code_page_data
{
unsigned magic; /* 8945 21f7 */
unsigned n_used; /* # elements used in c_p_data[] */
unsigned bounds[3]; /* looks a bit like
u32 magic; /* 8945 21f7 */
u32 n_used; /* # elements used in c_p_data[] */
u32 bounds[3]; /* looks a bit like
(beg1,end1), (beg2,end2)
one byte each */
unsigned short offs[3]; /* offsets from start of sector
u16 offs[3]; /* offsets from start of sector
to start of c_p_data[ix] */
struct {
unsigned short ix; /* index */
unsigned short code_page_number; /* code page number */
unsigned short unknown; /* the same as in cp directory */
unsigned char map[128]; /* upcase table for chars 80..ff */
unsigned short zero2;
u16 ix; /* index */
u16 code_page_number; /* code page number */
u16 unknown; /* the same as in cp directory */
u8 map[128]; /* upcase table for chars 80..ff */
u16 zero2;
} code_page[3];
unsigned char incognita[78];
u8 incognita[78];
};
......@@ -255,8 +252,8 @@ struct code_page_data
#define DNODE_MAGIC 0x77e40aae
struct dnode {
unsigned magic; /* 77e4 0aae */
unsigned first_free; /* offset from start of dnode to
u32 magic; /* 77e4 0aae */
u32 first_free; /* offset from start of dnode to
first free dir entry */
unsigned root_dnode:1; /* Is it root dnode? */
unsigned increment_me:31; /* some kind of activity counter?
......@@ -265,11 +262,11 @@ struct dnode {
secno up; /* (root dnode) directory's fnode
(nonroot) parent dnode */
dnode_secno self; /* pointer to this dnode */
unsigned char dirent[2028]; /* one or more dirents */
u8 dirent[2028]; /* one or more dirents */
};
struct hpfs_dirent {
unsigned short length; /* offset to next dirent */
u16 length; /* offset to next dirent */
unsigned first: 1; /* set on phony ^A^A (".") entry */
unsigned has_acl: 1;
unsigned down: 1; /* down pointer present (after name) */
......@@ -290,15 +287,15 @@ struct hpfs_dirent {
unsigned flag15: 1;
fnode_secno fnode; /* fnode giving allocation info */
time32_t write_date; /* mtime */
unsigned file_size; /* file length, bytes */
u32 file_size; /* file length, bytes */
time32_t read_date; /* atime */
time32_t creation_date; /* ctime */
unsigned ea_size; /* total EA length, bytes */
u32 ea_size; /* total EA length, bytes */
unsigned char no_of_acls : 3; /* number of ACL's */
unsigned char reserver : 5;
unsigned char ix; /* code page index (of filename), see
u8 ix; /* code page index (of filename), see
struct code_page_data */
unsigned char namelen, name[1]; /* file name */
u8 namelen, name[1]; /* file name */
/* dnode_secno down; btree down pointer, if present,
follows name on next word boundary, or maybe it
precedes next dirent, which is on a word boundary. */
......@@ -318,14 +315,14 @@ struct hpfs_dirent {
struct bplus_leaf_node
{
unsigned file_secno; /* first file sector in extent */
unsigned length; /* length, sectors */
u32 file_secno; /* first file sector in extent */
u32 length; /* length, sectors */
secno disk_secno; /* first corresponding disk sector */
};
struct bplus_internal_node
{
unsigned file_secno; /* subtree maps sectors < this */
u32 file_secno; /* subtree maps sectors < this */
anode_secno down; /* pointer to subtree */
};
......@@ -346,10 +343,10 @@ struct bplus_header
unsigned binary_search: 1; /* suggest binary search (unused) */
unsigned internal: 1; /* 1 -> (internal) tree of anodes
0 -> (leaf) list of extents */
unsigned char fill[3];
unsigned char n_free_nodes; /* free nodes in following array */
unsigned char n_used_nodes; /* used nodes in following array */
unsigned short first_free; /* offset from start of header to
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
first free node in array */
union {
struct bplus_internal_node internal[0]; /* (internal) 2-word entries giving
......@@ -369,19 +366,18 @@ struct bplus_header
struct fnode
{
unsigned magic; /* f7e4 0aae */
unsigned zero1[2]; /* read history */
unsigned char len, name[15]; /* true length, truncated name */
u32 magic; /* f7e4 0aae */
u32 zero1[2]; /* read history */
u8 len, name[15]; /* true length, truncated name */
fnode_secno up; /* pointer to file's directory fnode */
/*unsigned zero2[3];*/
secno acl_size_l;
secno acl_secno;
unsigned short acl_size_s;
char acl_anode;
char zero2; /* history bit count */
unsigned ea_size_l; /* length of disk-resident ea's */
u16 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*/
unsigned short ea_size_s; /* length of fnode-resident ea's */
u16 ea_size_s; /* length of fnode-resident ea's */
unsigned flag0: 1;
unsigned ea_anode: 1; /* 1 -> ea_secno is an anode */
......@@ -407,17 +403,16 @@ struct fnode
struct bplus_internal_node internal[12];
} u;
unsigned file_size; /* file length, bytes */
unsigned n_needea; /* number of EA's with NEEDEA set */
char user_id[16]; /* unused */
unsigned short ea_offs; /* offset from start of fnode
u32 file_size; /* file length, bytes */
u32 n_needea; /* number of EA's with NEEDEA set */
u8 user_id[16]; /* unused */
u16 ea_offs; /* offset from start of fnode
to first fnode-resident ea */
char dasd_limit_treshhold;
char dasd_limit_delta;
unsigned dasd_limit;
unsigned dasd_usage;
/*unsigned zero5[2];*/
unsigned char ea[316]; /* zero or more EA's, packed together
u8 dasd_limit_treshhold;
u8 dasd_limit_delta;
u32 dasd_limit;
u32 dasd_usage;
u8 ea[316]; /* zero or more EA's, packed together
with no alignment padding.
(Do not use this name, get here
via fnode + ea_offs. I think.) */
......@@ -430,7 +425,7 @@ struct fnode
struct anode
{
unsigned magic; /* 37e4 0aae */
u32 magic; /* 37e4 0aae */
anode_secno self; /* pointer to this anode */
secno up; /* parent anode or fnode */
......@@ -440,7 +435,7 @@ struct anode
struct bplus_internal_node internal[60];
} u;
unsigned fill[3]; /* unused */
u32 fill[3]; /* unused */
};
......@@ -471,15 +466,15 @@ struct extended_attribute
unsigned flag5: 1;
unsigned flag6: 1;
unsigned needea: 1; /* required ea */
unsigned char namelen; /* length of name, bytes */
unsigned short valuelen; /* length of value, bytes */
unsigned char name[0];
u8 namelen; /* length of name, bytes */
u16 valuelen; /* length of value, bytes */
u8 name[0];
/*
unsigned char name[namelen]; ascii attrib name
unsigned char nul; terminating '\0', not counted
unsigned char value[valuelen]; value, arbitrary
u8 name[namelen]; ascii attrib name
u8 nul; terminating '\0', not counted
u8 value[valuelen]; value, arbitrary
if this.indirect, valuelen is 8 and the value is
unsigned length; real length of value, bytes
u32 length; real length of value, bytes
secno secno; sector address where it starts
if this.anode, the above sector number is the root of an anode tree
which points to the value.
......
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