X-Git-Url: https://git.sven.stormbind.net/?p=sven%2Fexfatprogs.git;a=blobdiff_plain;f=include%2Flibexfat.h;h=9e853a88b92ea4cd97731c8949027d15880d7f5c;hp=56053b465ccc15810483cd2f681f20cb60c31f05;hb=HEAD;hpb=f7feb8f190bd23ec253bf9fe705738049d9cedd7 diff --git a/include/libexfat.h b/include/libexfat.h index 56053b4..9e853a8 100644 --- a/include/libexfat.h +++ b/include/libexfat.h @@ -10,6 +10,8 @@ #include #include +typedef __u32 clus_t; + #define KB (1024) #define MB (1024*1024) #define GB (1024UL*1024UL*1024UL) @@ -28,13 +30,32 @@ #define EXFAT_MAX_NUM_CLUSTER (0xFFFFFFF5) +#define DEFAULT_BOUNDARY_ALIGNMENT (1024*1024) + #define DEFAULT_SECTOR_SIZE (512) #define VOLUME_LABEL_BUFFER_SIZE (VOLUME_LABEL_MAX_LEN*MB_LEN_MAX+1) -/* Upcase tabel macro */ +/* Upcase table macro */ +#define EXFAT_UPCASE_TABLE_CHARS (0x10000) #define EXFAT_UPCASE_TABLE_SIZE (5836) +/* Flags for tune.exfat and exfatlabel */ +#define EXFAT_GET_VOLUME_LABEL 0x01 +#define EXFAT_SET_VOLUME_LABEL 0x02 +#define EXFAT_GET_VOLUME_SERIAL 0x03 +#define EXFAT_SET_VOLUME_SERIAL 0x04 +#define EXFAT_GET_VOLUME_GUID 0x05 +#define EXFAT_SET_VOLUME_GUID 0x06 + +#define EXFAT_MAX_SECTOR_SIZE 4096 + +#define EXFAT_CLUSTER_SIZE(pbr) (1 << ((pbr)->bsx.sect_size_bits + \ + (pbr)->bsx.sect_per_clus_bits)) +#define EXFAT_SECTOR_SIZE(pbr) (1 << (pbr)->bsx.sect_size_bits) + +#define EXFAT_MAX_HASH_COUNT (UINT16_MAX + 1) + enum { BOOT_SEC_IDX = 0, EXBOOT_SEC_IDX, @@ -47,11 +68,13 @@ enum { struct exfat_blk_dev { int dev_fd; + unsigned long long offset; unsigned long long size; unsigned int sector_size; unsigned int sector_size_bits; unsigned long long num_sectors; unsigned int num_clusters; + unsigned int cluster_size; }; struct exfat_user_input { @@ -59,17 +82,66 @@ struct exfat_user_input { bool writeable; unsigned int cluster_size; unsigned int sec_per_clu; + unsigned int boundary_align; + bool pack_bitmap; bool quick; __u16 volume_label[VOLUME_LABEL_MAX_LEN]; int volume_label_len; + unsigned int volume_serial; + const char *guid; }; +struct exfat; +struct exfat_inode; + +#ifdef WORDS_BIGENDIAN +typedef __u8 bitmap_t; +#else +typedef __u32 bitmap_t; +#endif + +#define BITS_PER (sizeof(bitmap_t) * 8) +#define BIT_MASK(__c) (1 << ((__c) % BITS_PER)) +#define BIT_ENTRY(__c) ((__c) / BITS_PER) + +#define EXFAT_BITMAP_SIZE(__c_count) \ + (DIV_ROUND_UP(__c_count, BITS_PER) * sizeof(bitmap_t)) + +#define BITMAP_GET(bmap, bit) \ + (((bitmap_t *)(bmap))[BIT_ENTRY(bit)] & BIT_MASK(bit)) + +#define BITMAP_SET(bmap, bit) \ + (((bitmap_t *)(bmap))[BIT_ENTRY(bit)] |= BIT_MASK(bit)) + +static inline bool exfat_bitmap_get(char *bmap, clus_t c) +{ + clus_t cc = c - EXFAT_FIRST_CLUSTER; + + return BITMAP_GET(bmap, cc); +} + +static inline void exfat_bitmap_set(char *bmap, clus_t c) +{ + clus_t cc = c - EXFAT_FIRST_CLUSTER; + + BITMAP_SET(bmap, cc); +} + +static inline void exfat_bitmap_clear(char *bmap, clus_t c) +{ + clus_t cc = c - EXFAT_FIRST_CLUSTER; + (((bitmap_t *)(bmap))[BIT_ENTRY(cc)] &= ~BIT_MASK(cc)); +} + +void exfat_bitmap_set_range(struct exfat *exfat, char *bitmap, + clus_t start_clus, clus_t count); +int exfat_bitmap_find_zero(struct exfat *exfat, char *bmap, + clus_t start_clu, clus_t *next); +int exfat_bitmap_find_one(struct exfat *exfat, char *bmap, + clus_t start_clu, clus_t *next); + void show_version(void); -void exfat_set_bit(struct exfat_blk_dev *bd, char *bitmap, - unsigned int clu); -void exfat_clear_bit(struct exfat_blk_dev *bd, char *bitmap, - unsigned int clu); wchar_t exfat_bad_char(wchar_t w); void boot_calc_checksum(unsigned char *sector, unsigned short size, bool is_boot_sec, __le32 *checksum); @@ -79,9 +151,39 @@ int exfat_get_blk_dev_info(struct exfat_user_input *ui, ssize_t exfat_read(int fd, void *buf, size_t size, off_t offset); ssize_t exfat_write(int fd, void *buf, size_t size, off_t offset); +size_t exfat_utf16_len(const __le16 *str, size_t max_size); ssize_t exfat_utf16_enc(const char *in_str, __u16 *out_str, size_t out_size); ssize_t exfat_utf16_dec(const __u16 *in_str, size_t in_len, char *out_str, size_t out_size); +off_t exfat_get_root_entry_offset(struct exfat_blk_dev *bd); +int exfat_read_volume_label(struct exfat *exfat); +int exfat_set_volume_label(struct exfat *exfat, char *label_input); +int __exfat_set_volume_guid(struct exfat_dentry *dentry, const char *guid); +int exfat_read_volume_guid(struct exfat *exfat); +int exfat_set_volume_guid(struct exfat *exfat, const char *guid); +int exfat_read_sector(struct exfat_blk_dev *bd, void *buf, + unsigned int sec_off); +int exfat_write_sector(struct exfat_blk_dev *bd, void *buf, + unsigned int sec_off); +int exfat_write_checksum_sector(struct exfat_blk_dev *bd, + unsigned int checksum, bool is_backup); +char *exfat_conv_volume_label(struct exfat_dentry *vol_entry); +int exfat_show_volume_serial(int fd); +int exfat_set_volume_serial(struct exfat_blk_dev *bd, + struct exfat_user_input *ui); +unsigned int exfat_clus_to_blk_dev_off(struct exfat_blk_dev *bd, + unsigned int clu_off, unsigned int clu); +int exfat_get_next_clus(struct exfat *exfat, clus_t clus, clus_t *next); +int exfat_get_inode_next_clus(struct exfat *exfat, struct exfat_inode *node, + clus_t clus, clus_t *next); +int exfat_set_fat(struct exfat *exfat, clus_t clus, clus_t next_clus); +off_t exfat_s2o(struct exfat *exfat, off_t sect); +off_t exfat_c2o(struct exfat *exfat, unsigned int clus); +int exfat_o2c(struct exfat *exfat, off_t device_offset, + unsigned int *clu, unsigned int *offset); +bool exfat_heap_clus(struct exfat *exfat, clus_t clus); +int exfat_root_clus_count(struct exfat *exfat); +int read_boot_sect(struct exfat_blk_dev *bdev, struct pbr **bs); /* * Exfat Print @@ -93,19 +195,19 @@ extern unsigned int print_level; #define EXFAT_INFO (2) #define EXFAT_DEBUG (3) -#define exfat_msg(level, fmt, ...) \ - do { \ - if (print_level >= level) { \ - if (print_level == EXFAT_INFO) \ - printf(fmt, ##__VA_ARGS__); \ - else \ - printf("[%s:%4d] " fmt, \ - __func__, __LINE__, ##__VA_ARGS__); \ - } \ - } while (0) \ - -#define exfat_err(fmt, ...) exfat_msg(EXFAT_ERROR, fmt, ##__VA_ARGS__) -#define exfat_info(fmt, ...) exfat_msg(EXFAT_INFO, fmt, ##__VA_ARGS__) -#define exfat_debug(fmt, ...) exfat_msg(EXFAT_DEBUG, fmt, ##__VA_ARGS__) +#define exfat_msg(level, dir, fmt, ...) \ + do { \ + if (print_level >= level) { \ + fprintf(dir, fmt, ##__VA_ARGS__); \ + } \ + } while (0) \ + +#define exfat_err(fmt, ...) exfat_msg(EXFAT_ERROR, stderr, \ + fmt, ##__VA_ARGS__) +#define exfat_info(fmt, ...) exfat_msg(EXFAT_INFO, stdout, \ + fmt, ##__VA_ARGS__) +#define exfat_debug(fmt, ...) exfat_msg(EXFAT_DEBUG, stdout, \ + "[%s:%4d] " fmt, __func__, \ + __LINE__, ##__VA_ARGS__) #endif /* !_LIBEXFAT_H */