82 lines
2.1 KiB
C++
82 lines
2.1 KiB
C++
#pragma once
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#include <stddef.h>
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#include <stdint.h>
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#include <sys/types.h>
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typedef long ssize_t;
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#define VFS_FILE 0x0
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#define VFS_DIRECTORY 0x1
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#define VFS_DEVICE 0x2
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#define VFS_MOUNTPOINT 0x1
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#define NAME_MAX 64
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namespace VFS
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{
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struct Node;
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typedef ssize_t (*node_read)(Node*, size_t, size_t, char*);
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typedef ssize_t (*node_write)(Node*, size_t, size_t, const char*);
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typedef Node* (*node_finddir)(Node*, const char*);
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typedef int (*node_mkdir)(Node*, const char*, mode_t);
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typedef int (*node_block)(Node*);
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typedef Node* (*node_readdir)(Node*, long);
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struct Node
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{
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char name[NAME_MAX];
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int type;
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int flags;
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int tty = 0;
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int uid;
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int gid;
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mode_t mode;
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uint64_t impl;
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uint64_t atime;
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uint64_t ctime;
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uint64_t mtime;
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uint64_t inode;
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uint64_t length;
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node_read read_func;
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node_finddir find_func;
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node_readdir readdir_func;
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node_mkdir mkdir_func;
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node_write write_func;
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node_block block_func;
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Node* link;
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};
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ssize_t read(Node* node, size_t offset, size_t length, char* buffer);
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ssize_t write(Node* node, size_t offset, size_t length, const char* buffer);
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int mkdir(const char* path, const char* name);
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int mkdir(const char* pathname);
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int do_mkdir(const char* path, const char* name, int uid, int gid, mode_t mode);
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int do_mkdir(const char* pathname, int uid, int gid, mode_t mode);
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int would_block(Node* node);
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void mount_root(Node* root);
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Node* resolve_path(const char* filename, Node* root = nullptr);
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bool exists(const char* pathname);
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void mount(Node* mountpoint, Node* mounted);
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void mount(const char* pathname, Node* mounted);
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void unmount(Node* mountpoint);
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Node* root();
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Node* readdir(Node* dir, long offset);
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bool can_execute(Node* node, int uid, int gid);
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bool can_read(Node* node, int uid, int gid);
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bool can_write(Node* node, int uid, int gid);
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bool is_setuid(Node* node);
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bool is_setgid(Node* node);
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} |