#ifndef EXT4_H_\r
#define EXT4_H_\r
\r
-#include <ext4_config.h>\r
-#include <ext4_blockdev.h>\r
+#include "ext4_config.h"\r
+#include "ext4_types.h"\r
+#include "ext4_blockdev.h"\r
+\r
#include <stdint.h>\r
\r
/********************************FILE OPEN FLAGS*****************************/\r
\r
#ifndef O_RDONLY\r
-#define O_RDONLY 00\r
+#define O_RDONLY 00\r
#endif\r
\r
#ifndef O_WRONLY\r
-#define O_WRONLY 01\r
+#define O_WRONLY 01\r
#endif\r
\r
#ifndef O_RDWR\r
-#define O_RDWR 02\r
+#define O_RDWR 02\r
#endif\r
\r
#ifndef O_CREAT\r
-#define O_CREAT 0100\r
+#define O_CREAT 0100\r
#endif\r
\r
#ifndef O_EXCL\r
-#define O_EXCL 0200\r
+#define O_EXCL 0200\r
#endif\r
\r
#ifndef O_TRUNC\r
-#define O_TRUNC 01000\r
+#define O_TRUNC 01000\r
#endif\r
\r
#ifndef O_APPEND\r
-#define O_APPEND 02000\r
+#define O_APPEND 02000\r
#endif\r
\r
/********************************FILE SEEK FLAGS*****************************/\r
\r
#ifndef SEEK_SET\r
-#define SEEK_SET 0\r
+#define SEEK_SET 0\r
#endif\r
\r
#ifndef SEEK_CUR\r
-#define SEEK_CUR 1\r
+#define SEEK_CUR 1\r
#endif\r
\r
#ifndef SEEK_END\r
-#define SEEK_END 2\r
+#define SEEK_END 2\r
#endif\r
\r
/********************************OS LOCK INFERFACE***************************/\r
/**@brief OS dependent lock interface.*/\r
struct ext4_lock {\r
\r
- /**@brief Lock access to mount point*/\r
- void (*lock)(void);\r
+ /**@brief Lock access to mount point*/\r
+ void (*lock)(void);\r
\r
- /**@brief Unlock access to mount point*/\r
- void (*unlock)(void);\r
+ /**@brief Unlock access to mount point*/\r
+ void (*unlock)(void);\r
};\r
\r
-\r
/********************************FILE DESCRIPTOR*****************************/\r
\r
/**@brief File descriptor*/\r
typedef struct ext4_file {\r
\r
- /**@brief Mount point handle.*/\r
- struct ext4_mountpoint *mp;\r
+ /**@brief Mount point handle.*/\r
+ struct ext4_mountpoint *mp;\r
\r
- /**@brief File inode id*/\r
- uint32_t inode;\r
+ /**@brief File inode id*/\r
+ uint32_t inode;\r
\r
- /**@brief Open flags.*/\r
- uint32_t flags;\r
+ /**@brief Open flags.*/\r
+ uint32_t flags;\r
\r
- /**@brief File size.*/\r
- uint64_t fsize;\r
+ /**@brief File size.*/\r
+ uint64_t fsize;\r
\r
- /**@brief File position*/\r
- uint64_t fpos;\r
-}ext4_file;\r
+ /**@brief File position*/\r
+ uint64_t fpos;\r
+} ext4_file;\r
\r
/*****************************DIRECTORY DESCRIPTOR***************************/\r
/**@brief Directory entry types. Copy from ext4_types.h*/\r
-enum {\r
- EXT4_DIRENTRY_UNKNOWN = 0,\r
- EXT4_DIRENTRY_REG_FILE,\r
- EXT4_DIRENTRY_DIR,\r
- EXT4_DIRENTRY_CHRDEV,\r
- EXT4_DIRENTRY_BLKDEV,\r
- EXT4_DIRENTRY_FIFO,\r
- EXT4_DIRENTRY_SOCK,\r
- EXT4_DIRENTRY_SYMLINK\r
-};\r
+enum { EXT4_DIRENTRY_UNKNOWN = 0,\r
+ EXT4_DIRENTRY_REG_FILE,\r
+ EXT4_DIRENTRY_DIR,\r
+ EXT4_DIRENTRY_CHRDEV,\r
+ EXT4_DIRENTRY_BLKDEV,\r
+ EXT4_DIRENTRY_FIFO,\r
+ EXT4_DIRENTRY_SOCK,\r
+ EXT4_DIRENTRY_SYMLINK };\r
\r
/**@brief Directory entry descriptor. Copy from ext4_types.h*/\r
typedef struct {\r
- uint32_t inode;\r
- uint16_t entry_length;\r
- uint8_t name_length;\r
- uint8_t inode_type;\r
- uint8_t name[255];\r
-}ext4_direntry;\r
-\r
-typedef struct {\r
- /**@brief File descriptor*/\r
- ext4_file f;\r
- /**@brief Current directory entry.*/\r
- ext4_direntry de;\r
-}ext4_dir;\r
+ uint32_t inode;\r
+ uint16_t entry_length;\r
+ uint8_t name_length;\r
+ uint8_t inode_type;\r
+ uint8_t name[255];\r
+} ext4_direntry;\r
+\r
+typedef struct {\r
+ /**@brief File descriptor*/\r
+ ext4_file f;\r
+ /**@brief Current directory entry.*/\r
+ ext4_direntry de;\r
+ /**@brief Next entry offset*/\r
+ uint64_t next_off;\r
+} ext4_dir;\r
\r
/********************************MOUNT OPERATIONS****************************/\r
\r
* @param dev_name register name\r
* @param standard error code*/\r
int ext4_device_register(struct ext4_blockdev *bd, struct ext4_bcache *bc,\r
- const char *dev_name);\r
+ const char *dev_name);\r
\r
/**@brief Mount a block device with EXT4 partition to the mount point.\r
* @param dev_name block device name (@ref ext4_device_register)\r
* - /my_second_partition/\r
*\r
* @return standard error code */\r
-int ext4_mount(const char * dev_name, char *mount_point);\r
+int ext4_mount(const char *dev_name, const char *mount_point);\r
\r
/**@brief Umount operation.\r
* @param mount_point mount name\r
* @return standard error code */\r
-int ext4_umount(char *mount_point);\r
-\r
+int ext4_umount(const char *mount_point);\r
\r
/**@brief Some of the filesystem stats.*/\r
struct ext4_mount_stats {\r
- uint32_t inodes_count;\r
- uint32_t free_inodes_count;\r
- uint64_t blocks_count;\r
- uint64_t free_blocks_count;\r
+ uint32_t inodes_count;\r
+ uint32_t free_inodes_count;\r
+ uint64_t blocks_count;\r
+ uint64_t free_blocks_count;\r
\r
- uint32_t block_size;\r
- uint32_t block_group_count;\r
- uint32_t blocks_per_group;\r
- uint32_t inodes_per_group;\r
+ uint32_t block_size;\r
+ uint32_t block_group_count;\r
+ uint32_t blocks_per_group;\r
+ uint32_t inodes_per_group;\r
\r
- char volume_name[16];\r
+ char volume_name[16];\r
};\r
\r
/**@brief Get file system params.\r
* @param stats ext fs stats\r
* @return standard error code */\r
int ext4_mount_point_stats(const char *mount_point,\r
- struct ext4_mount_stats *stats);\r
+ struct ext4_mount_stats *stats);\r
\r
/**@brief Setup OS lock routines.\r
* @param mount_point mount path\r
* @param locks - lock and unlock functions\r
* @return standard error code */\r
-int ext4_mount_setup_locks(const char * mount_point,\r
- const struct ext4_lock *locks);\r
+int ext4_mount_setup_locks(const char *mount_point,\r
+ const struct ext4_lock *locks);\r
+\r
+/**@brief Acquire the filesystem superblock pointer of a mp.\r
+ * @param mount_point mount path\r
+ * @param superblock pointer\r
+ * @return standard error code */\r
+int ext4_get_sblock(const char *mount_point, struct ext4_sblock **sb);\r
\r
/**@brief Enable/disable write back cache mode.\r
* @warning Default model of cache is write trough. It means that when You do:\r
* @return standard error code */\r
int ext4_fremove(const char *path);\r
\r
+/**@brief Rename file\r
+ * @param path source\r
+ * @param new_path destination\r
+ * @return standard error code */\r
+int ext4_frename(const char *path, const char *new_path);\r
+\r
/**@brief File open function.\r
* @param filename, (has to start from mount point)\r
* /my_partition/my_file\r
* |---------------------------------------------------------------|\r
*\r
* @return standard error code*/\r
-int ext4_fopen (ext4_file *f, const char *path, const char *flags);\r
+int ext4_fopen(ext4_file *f, const char *path, const char *flags);\r
+\r
+/**@brief Alternate file open function.\r
+ * @param filename, (has to start from mount point)\r
+ * /my_partition/my_file\r
+ * @param flags open file flags\r
+ * @return standard error code*/\r
+int ext4_fopen2(ext4_file *f, const char *path, int flags, bool file_expect);\r
\r
/**@brief File close function.\r
* @param f file handle\r
* @return standard error code*/\r
int ext4_fclose(ext4_file *f);\r
\r
+/**@brief Fill in the ext4_inode buffer.\r
+ * @param mount_point\r
+ * @param inode no.\r
+ * @param ext4_inode buffer\r
+ * @return standard error code*/\r
+int ext4_fill_raw_inode(const char *mount_point, uint32_t ino,\r
+ struct ext4_inode *inode);\r
+\r
+/**@brief File truncate function.\r
+ * @param f file handle\r
+ * @param new file size\r
+ * @return standard error code*/\r
+int ext4_ftruncate(ext4_file *f, uint64_t size);\r
+\r
/**@brief Read data from file.\r
* @param f file handle\r
* @param buf output buffer\r
* @param size bytes to read\r
* @param rcnt bytes read (may be NULL)\r
* @return standard error code*/\r
-int ext4_fread (ext4_file *f, void *buf, uint32_t size, uint32_t *rcnt);\r
+int ext4_fread(ext4_file *f, void *buf, uint32_t size, uint32_t *rcnt);\r
\r
/**@brief Write data to file.\r
* @param f file handle\r
* @param size write length\r
* @param wcnt bytes written (may be NULL)\r
* @return standard error code*/\r
-int ext4_fwrite(ext4_file *f, void *buf, uint32_t size, uint32_t *wcnt);\r
+int ext4_fwrite(ext4_file *f, const void *buf, uint32_t size, uint32_t *wcnt);\r
\r
/**@brief File seek operation.\r
* @param f file handle\r
* @ref SEEK_CUR\r
* @ref SEEK_END\r
* @return standard error code*/\r
-int ext4_fseek (ext4_file *f, uint64_t offset, uint32_t origin);\r
+int ext4_fseek(ext4_file *f, uint64_t offset, uint32_t origin);\r
\r
/**@brief Get file position.\r
* @param f file handle\r
* @return actual file position */\r
-uint64_t ext4_ftell (ext4_file *f);\r
+uint64_t ext4_ftell(ext4_file *f);\r
\r
/**@brief Get file size.\r
* @param f file handle\r
* @return file size */\r
-uint64_t ext4_fsize (ext4_file *f);\r
+uint64_t ext4_fsize(ext4_file *f);\r
+\r
+int ext4_fchmod(ext4_file *f, uint32_t mode);\r
+int ext4_fchown(ext4_file *f, uint32_t uid, uint32_t gid);\r
+int ext4_file_set_atime(ext4_file *f, uint32_t atime);\r
+int ext4_file_set_mtime(ext4_file *f, uint32_t mtime);\r
+int ext4_file_set_ctime(ext4_file *f, uint32_t ctime);\r
\r
/*********************************DIRECTORY OPERATION***********************/\r
\r
* @param d directory handle\r
* @param path directory path\r
* @return standard error code*/\r
-int ext4_dir_open (ext4_dir *d, const char *path);\r
+int ext4_dir_open(ext4_dir *d, const char *path);\r
\r
/**@brief Directory close.\r
* @param d directory handle\r
* @return standard error code*/\r
int ext4_dir_close(ext4_dir *d);\r
\r
-\r
-/**@brief Return directory entry by id.\r
+/**@brief Return next directory entry.\r
* @param d directory handle\r
* @param id entry id\r
- * @return directory entry id (NULL id no entry)*/\r
-ext4_direntry* ext4_dir_entry_get(ext4_dir *d, uint32_t id);\r
+ * @return directory entry id (NULL if no entry)*/\r
+const ext4_direntry *ext4_dir_entry_next(ext4_dir *d);\r
\r
#endif /* EXT4_H_ */\r
\r
projects / lwext4.git / blobdiff