#include <lunaix/clock.h>
#include <lunaix/device.h>
+#include <lunaix/fs.h>
#include <lunaix/types.h>
#define ISO_SIGNATURE_LO 0x30304443UL
#define ISO9660_BLKSZ 2048
#define ISO9660_IDLEN 256
+#define ISO9660_READ_OFF (ISO9660_BLKSZ * 16)
// NOTES:
// Each Descriptor sized 1 logical block (2048 bytes in common cases)
u8_t type;
u8_t std_id[5]; // CD001
u8_t version;
-} PACKED;
+} compact;
struct iso_vol_boot
{
u8_t sys_id[32];
u8_t boot_id[32];
u8_t reserved; // align to data line width
-} PACKED;
+} compact;
struct iso_datetime
{
u8_t sec[2];
u8_t ms[2];
u8_t gmt;
-} PACKED;
+} compact;
// 32bits both-byte-order integer
typedef struct iso_bbo32
{
u32_t le; // little-endian
u32_t be; // big-endian
-} PACKED iso_bbo32_t;
+} compact iso_bbo32_t;
// 16bits both-byte-order integer
typedef struct iso_bbo16
{
u16_t le; // little-endian
u16_t be; // big-endian
-} PACKED iso_bbo16_t;
+} compact iso_bbo16_t;
// (8.4) Describe a primary volume space
struct iso_vol_primary
struct iso_datetime ex_time; // expiration
struct iso_datetime ef_time; // effective
u8_t fstruct_ver; // file structure version, don't care!
-} PACKED; // size 1124
+} compact; // size 1124
// Layout for Supplementary Vol. is almost identical to primary vol.
// We ignore it for now. (see section 8.5, table 6)
u8_t part_id[32];
iso_bbo32_t part_addr;
iso_bbo32_t part_size;
-} PACKED;
+} compact;
// (6.10.4) MDU with variable record
struct iso_var_mdu
{
u8_t len;
u8_t content[0];
-} PACKED;
+} compact;
+
+struct iso_datetime2
+{
+ u8_t year;
+ u8_t month;
+ u8_t day;
+ u8_t hour;
+ u8_t min;
+ u8_t sec;
+ u8_t gmt;
+} compact;
// (9.1) Directory Record [Embedded into Variable MDU]
struct iso_drecord
u8_t xattr_len;
iso_bbo32_t extent_addr;
iso_bbo32_t data_size;
- struct
- {
- u8_t year;
- u8_t month;
- u8_t day;
- u8_t hour;
- u8_t min;
- u8_t sec;
- u8_t gmt;
- } PACKED mktime; // Time the record is made, see 9.1.5
+ struct iso_datetime2 mktime; // Time the record is made, see 9.1.5
u8_t flags;
u8_t fu_sz; // size of file unit (FU)
u8_t gap_sz; // size of gap if FU is interleaved.
iso_bbo16_t vol_seq;
struct iso_var_mdu name;
-} PACKED;
-
-// (9.4) L-Path Table Record. [Embedded into Variable MDU]
-struct iso_precord
-{
- u8_t xattr_len;
- u32_t extent_addr;
- u8_t parent; // indexed into path table
- u8_t id[0]; // length = iso_var_mdu::len
-} PACKED;
+} compact;
struct iso_xattr
{
u8_t payload[0];
// There is also a escape sequence after payload,
// It however marked as optional, hence we ignore it.
-} PACKED;
+} compact;
+
+///
+/// -------- IEEE P1281 SUSP ---------
+///
+
+#define ISOSU_ER 0x5245
+#define ISOSU_ST 0x5453
-struct iso_ptable
+struct isosu_base
{
- u32_t start_lba;
- u32_t current_lba;
- u32_t size;
- u32_t range_lower;
- u32_t range_upper;
- void* ptable_part;
-};
+ u16_t signature;
+ u8_t length;
+ u8_t version;
+} compact;
+
+struct isosu_er
+{
+ struct isosu_base header;
+ u8_t id_len;
+ u8_t des_len;
+ u8_t src_len;
+ u8_t ext_ver;
+ u8_t id_des_src[0];
+} compact;
+
+///
+/// -------- Rock Ridge Extension --------
+///
+
+#define ISORR_PX 0x5850
+#define ISORR_PN 0x4e50
+#define ISORR_SL 0x4c53
+#define ISORR_NM 0x4d4e
+#define ISORR_TF 0x4654
+
+#define ISORR_NM_CONT 0x1
+
+#define ISORR_TF_CTIME 0x1
+#define ISORR_TF_MTIME 0x2
+#define ISORR_TF_ATIME 0x4
+#define ISORR_TF_LONG_FORM 0x80
+
+struct isorr_px
+{
+ struct isosu_base header;
+ iso_bbo32_t mode;
+ iso_bbo32_t link;
+ iso_bbo32_t uid;
+ iso_bbo32_t gid;
+ iso_bbo32_t sn;
+} compact;
+
+struct isorr_pn
+{
+ struct isosu_base header;
+ iso_bbo32_t dev_hi;
+ iso_bbo32_t dev_lo;
+} compact;
+
+struct isorr_sl
+{
+ struct isosu_base header;
+ u8_t flags;
+ char symlink[0];
+} compact;
+
+struct isorr_nm
+{
+ struct isosu_base header;
+ u8_t flags;
+ char name[0];
+} compact;
+
+struct isorr_tf
+{
+ struct isosu_base header;
+ u8_t flags;
+ char times[0];
+} compact;
+
+///
+/// -------- VFS integration ---------
+///
struct iso_inode
{
- time_t ctime;
- time_t mtime;
u32_t record_fmt;
u32_t fu_size;
u32_t gap_size;
- struct llist_header* drecaches;
+ struct llist_header drecaches;
};
struct iso_drecache
u32_t extent_addr;
u32_t data_size;
u32_t xattr_len;
+ u32_t fno;
u32_t fu_size;
u32_t gap_size;
u32_t flags;
+ time_t ctime;
+ time_t atime;
+ time_t mtime;
struct hstr name;
char name_val[ISO9660_IDLEN];
};
time_t
iso9660_dt2unix(struct iso_datetime* isodt);
+time_t
+iso9660_dt22unix(struct iso_datetime2* isodt2);
+
void
iso9660_init();
iso9660_setup_dnode(struct v_dnode* dnode, struct v_inode* inode);
void
-iso9660_fill_drecache(struct iso_drecache* cache, struct iso_drecord* drec);
+iso9660_fill_drecache(struct iso_drecache* cache,
+ struct iso_drecord* drec,
+ u32_t len);
int
iso9660_dir_lookup(struct v_inode* this, struct v_dnode* dnode);
int
iso9660_write(struct v_inode* inode, void* buffer, size_t len, size_t fpos);
+int
+iso9660_read_page(struct v_inode* inode, void* buffer, size_t fpos);
+
+int
+iso9660_write_page(struct v_inode* inode, void* buffer, size_t fpos);
+
int
iso9660_seek(struct v_inode* inode, size_t offset);
+int
+isorr_parse_px(struct iso_drecache* cache, void* px_start);
+
+int
+isorr_parse_nm(struct iso_drecache* cache, void* nm_start);
+
+int
+isorr_parse_tf(struct iso_drecache* cache, void* tf_start);
+
#endif /* __LUNAIX_ISO9660_H */
git://scm.lunaixsky.com / lunaix-os.git / blobdiff