6b13f685e
김민수
BSP 최초 추가
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#if !defined(__LITTLE_ENDIAN) && !defined(__BIG_ENDIAN)
#error unknown endian
#endif
typedef u32 secno;
typedef secno dnode_secno;
typedef secno fnode_secno;
typedef secno anode_secno;
typedef u32 time32_t;
#define BB_MAGIC 0xaa55
struct hpfs_boot_block
{
u8 jmp[3];
u8 oem_id[8];
u8 bytes_per_sector[2];
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;
__le16 sectors_per_fat;
__le16 sectors_per_track;
__le16 heads_per_cyl;
__le32 n_hidden_sectors;
__le32 n_sectors_l;
u8 drive_number;
u8 mbz;
u8 sig_28h;
u8 vol_serno[4];
u8 vol_label[11];
u8 sig_hpfs[8];
u8 pad[448];
__le16 magic;
};
#define SB_MAGIC 0xf995e849
struct hpfs_super_block
{
__le32 magic;
__le32 magic1;
u8 version;
u8 funcversion;
__le16 zero;
__le32 root;
__le32 n_sectors;
__le32 n_badblocks;
__le32 bitmaps;
__le32 zero1;
__le32 badblocks;
__le32 zero3;
__le32 last_chkdsk;
__le32 last_optimize;
__le32 n_dir_band;
__le32 dir_band_start;
__le32 dir_band_end;
__le32 dir_band_bitmap;
u8 volume_name[32];
__le32 user_id_table;
u32 zero6[103];
};
#define SP_MAGIC 0xf9911849
struct hpfs_spare_block
{
__le32 magic;
__le32 magic1;
#ifdef __LITTLE_ENDIAN
u8 dirty: 1;
u8 sparedir_used: 1;
u8 hotfixes_used: 1;
u8 bad_sector: 1;
u8 bad_bitmap: 1;
u8 fast: 1;
u8 old_wrote: 1;
u8 old_wrote_1: 1;
#else
u8 old_wrote_1: 1;
u8 old_wrote: 1;
u8 fast: 1;
u8 bad_bitmap: 1;
u8 bad_sector: 1;
u8 hotfixes_used: 1;
u8 sparedir_used: 1;
u8 dirty: 1;
#endif
#ifdef __LITTLE_ENDIAN
u8 install_dasd_limits: 1;
u8 resynch_dasd_limits: 1;
u8 dasd_limits_operational: 1;
u8 multimedia_active: 1;
u8 dce_acls_active: 1;
u8 dasd_limits_dirty: 1;
u8 flag67: 2;
#else
u8 flag67: 2;
u8 dasd_limits_dirty: 1;
u8 dce_acls_active: 1;
u8 multimedia_active: 1;
u8 dasd_limits_operational: 1;
u8 resynch_dasd_limits: 1;
u8 install_dasd_limits: 1;
#endif
u8 mm_contlgulty;
u8 unused;
__le32 hotfix_map;
__le32 n_spares_used;
__le32 n_spares;
__le32 n_dnode_spares_free;
__le32 n_dnode_spares;
__le32 code_page_dir;
__le32 n_code_pages;
__le32 super_crc;
__le32 spare_crc;
__le32 zero1[15];
__le32 spare_dnodes[100];
__le32 zero2[1];
};
#define BAD_MAGIC 0
#define CP_DIR_MAGIC 0x494521f7
struct code_page_directory
{
__le32 magic;
__le32 n_code_pages;
__le32 zero1[2];
struct {
__le16 ix;
__le16 code_page_number;
__le32 bounds;
__le32 code_page_data;
__le16 index;
__le16 unknown;
} array[31];
};
#define CP_DATA_MAGIC 0x894521f7
struct code_page_data
{
__le32 magic;
__le32 n_used;
__le32 bounds[3];
__le16 offs[3];
struct {
__le16 ix;
__le16 code_page_number;
__le16 unknown;
u8 map[128];
__le16 zero2;
} code_page[3];
u8 incognita[78];
};
#define DNODE_MAGIC 0x77e40aae
struct dnode {
__le32 magic;
__le32 first_free;
#ifdef __LITTLE_ENDIAN
u8 root_dnode: 1;
u8 increment_me: 7;
#else
u8 increment_me: 7;
u8 root_dnode: 1;
#endif
u8 increment_me2[3];
__le32 up;
__le32 self;
u8 dirent[2028];
};
struct hpfs_dirent {
__le16 length;
#ifdef __LITTLE_ENDIAN
u8 first: 1;
u8 has_acl: 1;
u8 down: 1;
u8 last: 1;
u8 has_ea: 1;
u8 has_xtd_perm: 1;
u8 has_explicit_acl: 1;
u8 has_needea: 1;
#else
u8 has_needea: 1;
u8 has_explicit_acl: 1;
u8 has_xtd_perm: 1;
u8 has_ea: 1;
u8 last: 1;
u8 down: 1;
u8 has_acl: 1;
u8 first: 1;
#endif
#ifdef __LITTLE_ENDIAN
u8 read_only: 1;
u8 hidden: 1;
u8 system: 1;
u8 flag11: 1;
u8 directory: 1;
u8 archive: 1;
u8 not_8x3: 1;
u8 flag15: 1;
#else
u8 flag15: 1;
u8 not_8x3: 1;
u8 archive: 1;
u8 directory: 1;
u8 flag11: 1;
u8 system: 1;
u8 hidden: 1;
u8 read_only: 1;
#endif
__le32 fnode;
__le32 write_date;
__le32 file_size;
__le32 read_date;
__le32 creation_date;
__le32 ea_size;
u8 no_of_acls;
u8 ix;
u8 namelen, name[1];
};
struct bplus_leaf_node
{
__le32 file_secno;
__le32 length;
__le32 disk_secno;
};
struct bplus_internal_node
{
__le32 file_secno;
__le32 down;
};
enum {
BP_hbff = 1,
BP_fnode_parent = 0x20,
BP_binary_search = 0x40,
BP_internal = 0x80
};
struct bplus_header
{
u8 flags;
u8 fill[3];
u8 n_free_nodes;
u8 n_used_nodes;
__le16 first_free;
union {
struct bplus_internal_node internal[0];
struct bplus_leaf_node external[0];
} 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;
}
#define FNODE_MAGIC 0xf7e40aae
enum {FNODE_anode = cpu_to_le16(2), FNODE_dir = cpu_to_le16(256)};
struct fnode
{
__le32 magic;
__le32 zero1[2];
u8 len, name[15];
__le32 up;
__le32 acl_size_l;
__le32 acl_secno;
__le16 acl_size_s;
u8 acl_anode;
u8 zero2;
__le32 ea_size_l;
__le32 ea_secno;
__le16 ea_size_s;
__le16 flags;
struct bplus_header btree;
union {
struct bplus_leaf_node external[8];
struct bplus_internal_node internal[12];
} u;
__le32 file_size;
__le32 n_needea;
u8 user_id[16];
__le16 ea_offs;
u8 dasd_limit_treshhold;
u8 dasd_limit_delta;
__le32 dasd_limit;
__le32 dasd_usage;
u8 ea[316];
};
static inline bool fnode_in_anode(struct fnode *p)
{
return (p->flags & FNODE_anode) != 0;
}
static inline bool fnode_is_dir(struct fnode *p)
{
return (p->flags & FNODE_dir) != 0;
}
#define ANODE_MAGIC 0x37e40aae
struct anode
{
__le32 magic;
__le32 self;
__le32 up;
struct bplus_header btree;
union {
struct bplus_leaf_node external[40];
struct bplus_internal_node internal[60];
} u;
__le32 fill[3];
};
enum {EA_indirect = 1, EA_anode = 2, EA_needea = 128 };
struct extended_attribute
{
u8 flags;
u8 namelen;
u8 valuelen_lo;
u8 valuelen_hi;
u8 name[];
};
static inline bool ea_indirect(struct extended_attribute *ea)
{
return ea->flags & EA_indirect;
}
static inline bool ea_in_anode(struct extended_attribute *ea)
{
return ea->flags & EA_anode;
}
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