/*
- * exfat.h
- * Definitions of structures and constants used in exFAT file system
- * implementation.
- *
- * Created by Andrew Nayenko on 29.08.09.
- * This software is distributed under the GNU General Public License
- * version 3 or any later.
- */
+ exfat.h (29.08.09)
+ Definitions of structures and constants used in exFAT file system
+ implementation.
+
+ Copyright (C) 2009, 2010 Andrew Nayenko
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
#ifndef EXFAT_H_INCLUDED
#define EXFAT_H_INCLUDED
#include <sys/stat.h>
#include <sys/types.h>
#include "exfatfs.h"
-
-#define EXFAT_VERSION_MAJOR 0
-#define EXFAT_VERSION_MINOR 5
+#include "version.h"
#define EXFAT_NAME_MAX 256
#define EXFAT_ATTRIB_CONTIGUOUS 0x10000
#define EXFAT_ATTRIB_DIRTY 0x40000
#define EXFAT_ATTRIB_UNLINKED 0x80000
#define IS_CONTIGUOUS(node) (((node).flags & EXFAT_ATTRIB_CONTIGUOUS) != 0)
-#define BLOCK_SIZE(sb) (1 << (sb).block_bits)
-#define CLUSTER_SIZE(sb) (BLOCK_SIZE(sb) << (sb).bpc_bits)
+#define SECTOR_SIZE(sb) (1 << (sb).sector_bits)
+#define CLUSTER_SIZE(sb) (SECTOR_SIZE(sb) << (sb).spc_bits)
#define CLUSTER_INVALID(c) ((c) == EXFAT_CLUSTER_BAD || (c) == EXFAT_CLUSTER_END)
#define MIN(a, b) ((a) < (b) ? (a) : (b))
#define DIV_ROUND_UP(x, d) (((x) + (d) - 1) / (d))
+#define BMAP_GET(bitmap, index) \
+ (((uint8_t*) bitmap)[(index) / 8] & (1u << ((index) % 8)))
+#define BMAP_SET(bitmap, index) \
+ ((uint8_t*) bitmap)[(index) / 8] |= (1u << ((index) % 8))
+#define BMAP_CLR(bitmap, index) \
+ ((uint8_t*) bitmap)[(index) / 8] &= ~(1u << ((index) % 8))
+
struct exfat_node
{
struct exfat_node* parent;
int dirty;
}
cmap;
- void* zero_block;
+ char label[EXFAT_ENAME_MAX * 6 + 1]; /* a character can occupy up to
+ 6 bytes in UTF-8 */
+ void* zero_cluster;
int dmask, fmask;
uid_t uid;
gid_t gid;
int ro;
+ int ro_fallback;
+ int noatime;
};
/* in-core nodes iterator */
struct exfat_node* current;
};
+struct exfat_human_bytes
+{
+ uint64_t value;
+ const char* unit;
+};
+
extern int exfat_errors;
void exfat_bug(const char* format, ...)
void exfat_debug(const char* format, ...)
__attribute__((format(printf, 1, 2)));
+int exfat_open(const char* spec, int ro);
void exfat_read_raw(void* buffer, size_t size, off_t offset, int fd);
void exfat_write_raw(const void* buffer, size_t size, off_t offset, int fd);
ssize_t exfat_read(const struct exfat* ef, struct exfat_node* node,
struct exfat_node* exfat_readdir(struct exfat* ef, struct exfat_iterator* it);
int exfat_lookup(struct exfat* ef, struct exfat_node** node,
const char* path);
-int exfat_split(struct exfat* ef, struct exfat_node** node, le16_t* name,
- const char* path);
+int exfat_split(struct exfat* ef, struct exfat_node** parent,
+ struct exfat_node** node, le16_t* name, const char* path);
off_t exfat_c2o(const struct exfat* ef, cluster_t cluster);
cluster_t exfat_next_cluster(const struct exfat* ef,
struct exfat_node* node, uint32_t count);
void exfat_flush_cmap(struct exfat* ef);
int exfat_truncate(struct exfat* ef, struct exfat_node* node, uint64_t size);
+uint32_t exfat_count_free_clusters(const struct exfat* ef);
+int exfat_find_used_sectors(const struct exfat* ef, off_t* a, off_t* b);
void exfat_stat(const struct exfat* ef, const struct exfat_node* node,
struct stat* stbuf);
-time_t exfat_exfat2unix(le16_t date, le16_t time);
-void exfat_unix2exfat(time_t unix_time, le16_t* date, le16_t* time);
+time_t exfat_exfat2unix(le16_t date, le16_t time, uint8_t centisec);
+void exfat_unix2exfat(time_t unix_time, le16_t* date, le16_t* time,
+ uint8_t* centisec);
void exfat_get_name(const struct exfat_node* node, char* buffer, size_t n);
-uint16_t exfat_start_checksum(const struct exfat_file* entry);
+uint16_t exfat_start_checksum(const struct exfat_entry_meta1* entry);
uint16_t exfat_add_checksum(const void* entry, uint16_t sum);
-le16_t exfat_calc_checksum(const struct exfat_file* meta1,
- const struct exfat_file_info* meta2, const le16_t* name);
+le16_t exfat_calc_checksum(const struct exfat_entry_meta1* meta1,
+ const struct exfat_entry_meta2* meta2, const le16_t* name);
+uint32_t exfat_vbr_start_checksum(const void* sector, size_t size);
+uint32_t exfat_vbr_add_checksum(const void* sector, size_t size, uint32_t sum);
le16_t exfat_calc_name_hash(const struct exfat* ef, const le16_t* name);
+void exfat_humanize_bytes(uint64_t value, struct exfat_human_bytes* hb);
+void exfat_print_info(const struct exfat_super_block* sb,
+ uint32_t free_clusters);
int utf16_to_utf8(char* output, const le16_t* input, size_t outsize,
size_t insize);
int exfat_rmdir(struct exfat* ef, struct exfat_node* node);
int exfat_mknod(struct exfat* ef, const char* path);
int exfat_mkdir(struct exfat* ef, const char* path);
+int exfat_rename(struct exfat* ef, const char* old_path, const char* new_path);
void exfat_utimes(struct exfat_node* node, const struct timespec tv[2]);
+void exfat_update_atime(struct exfat_node* node);
+void exfat_update_mtime(struct exfat_node* node);
+const char* exfat_get_label(struct exfat* ef);
+int exfat_set_label(struct exfat* ef, const char* label);
int exfat_mount(struct exfat* ef, const char* spec, const char* options);
void exfat_unmount(struct exfat* ef);
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