55 lines
1.8 KiB
C
55 lines
1.8 KiB
C
#ifndef _DUCKFS_H
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#define _DUCKFS_H
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#include <types.h>
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#define DUCKFS_MAGIC "DUCKFS1"
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#define DUCKFS_NAME_LEN 32
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typedef enum { DUCKFS_TYPE_FILE = 0, DUCKFS_TYPE_DIR = 1, DUCKFS_TYPE_SYMLINK = 2 } duckfs_type_t;
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typedef struct {
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char name[DUCKFS_NAME_LEN];
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duckfs_type_t type;
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uint8_t permissions; /* rwxrwxrwx packed into 9 bits */
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uint16_t uid;
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uint16_t gid;
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uint64_t size;
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uint64_t created;
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uint64_t modified;
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uint64_t first_block_lba;
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uint64_t next_file_lba;
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uint64_t child_lba; /* only for directories */
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} __attribute__((packed)) duckfs_file_header_t;
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typedef struct {
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char magic[8]; /* "DUCKFS1\0" */
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uint32_t block_size;
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uint64_t total_blocks;
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uint64_t root_header_lba;
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uint64_t free_list_lba;
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uint32_t fs_version;
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} __attribute__((packed)) duckfs_superblock_t;
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struct free_block {
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uint64_t next;
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};
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/* DuckFS API */
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int32_t duckfs_mount(void);
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int32_t duckfs_find(const char* path, duckfs_file_header_t* out);
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int32_t duckfs_create_file(const char* name, const void* content, size_t size, uint16_t uid, uint16_t gid, uint8_t perms, duckfs_file_header_t* parent_dir);
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int32_t duckfs_create_dir(const char* name, uint16_t uid, uint16_t gid, uint8_t perms, duckfs_file_header_t* parent_dir);
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int32_t duckfs_delete_file(const char* name, duckfs_file_header_t* parent_dir);
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int32_t duckfs_delete_dir(const char* name, duckfs_file_header_t* parent_dir);
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int32_t duckfs_read_file(const duckfs_file_header_t* file, void* buffer, size_t size);
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int32_t duckfs_write_data(duckfs_file_header_t* file, const void* data, size_t offset, size_t length);
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int32_t duckfs_append_data(duckfs_file_header_t* file, const void* data, size_t length);
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int32_t duckfs_truncate(duckfs_file_header_t* file, size_t new_size);
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#endif
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