#include <wchar.h>
#include <limits.h>
+typedef __u32 clus_t;
+
#define KB (1024)
#define MB (1024*1024)
#define GB (1024UL*1024UL*1024UL)
#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,
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 {
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);
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