54 lines
1.5 KiB
C
54 lines
1.5 KiB
C
#ifndef KVFS_H
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#define KVFS_H
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#include <stdint.h>
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#include <stddef.h>
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#define VFS_FILE 0x01
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#define VFS_DIRECTORY 0x02
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#define VFS_CHARDEVICE 0x03
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#define VFS_BLOCKDEVICE 0x04
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#define VFS_PIPE 0x05
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struct vfs_node;
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typedef uint32_t (*read_type_t)(struct vfs_node* node, uint32_t offset, uint32_t size, uint8_t* buffer);
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typedef uint32_t (*write_type_t)(struct vfs_node* node, uint32_t offset, uint32_t size, uint8_t* buffer);
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typedef struct vfs_node* (*finddir_type_t)(struct vfs_node* node, const char* name);
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typedef struct vfs_node* (*mkdir_type_t)(struct vfs_node* node, const char* name);
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typedef struct vfs_node {
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char name[128];
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uint32_t flags; // File, directory, device, etc.
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uint32_t size; // Size of file in bytes
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struct vfs_node* first_child;
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struct vfs_node* next_sibling;
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read_type_t read;
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write_type_t write;
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finddir_type_t find;
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mkdir_type_t mkdir;
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struct vfs_node* mnt;
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void* data;
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} vfs_node_t;
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typedef struct {
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vfs_node_t* node; // The actual CPIO/VFS node
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uint32_t offset; // Current read/write cursor position
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uint32_t flags; // Permissions (O_RDONLY, etc.)
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} file_t;
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vfs_node_t* vfs_create_root();
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vfs_node_t* vfs_mkdir(vfs_node_t* parent, const char* name);
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void vfs_mount(vfs_node_t* _mnt, vfs_node_t* _fs);
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int vfs_open(const char* path, int flags);
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int vfs_read(int fd, void* buf, size_t sz);
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int vfs_seek(int fd, size_t offset);
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int alloc_fd(file_t* f);
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#endif |